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Kim DK, Lee CY, Han YJ, Park SY, Han H, Na K, Kim MH, Yang SM, Baek S, Kim Y, Hwang JY, Lee S, Kang SS, Hong MH, Lim SM, Lee JB, Kim JH, Cho BC, Pyo KH. Exploring aryl hydrocarbon receptor expression and distribution in the tumor microenvironment, with a focus on immune cells, in various solid cancer types. Front Immunol 2024; 15:1330228. [PMID: 38680496 PMCID: PMC11045933 DOI: 10.3389/fimmu.2024.1330228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/09/2024] [Indexed: 05/01/2024] Open
Abstract
Introduction Aryl hydrocarbon receptor (AhR) is a transcription factor that performs various functions upon ligand activation. Several studies have explored the role of AhR expression in tumor progression and immune surveillance. Nevertheless, investigations on the distribution of AhR expression, specifically in cancer or immune cells in the tumor microenvironment (TME), remain limited. Examining the AhR expression and distribution in the TME is crucial for gaining insights into the mechanism of action of AhR-targeting anticancer agents and their potential as biomarkers. Methods Here, we used multiplexed immunohistochemistry (mIHC) and image cytometry to investigate the AhR expression and distribution in 513 patient samples, of which 292 are patients with one of five solid cancer types. Additionally, we analyzed the nuclear and cytosolic distribution of AhR expression. Results Our findings reveal that AhR expression was primarily localized in cancer cells, followed by stromal T cells and macrophages. Furthermore, we observed a positive correlation between the nuclear and cytosolic expression of AhR, indicating that the expression of AhR as a biomarker is independent of its localization. Interestingly, the expression patterns of AhR were categorized into three clusters based on the cancer type, with high AhR expression levels being found in regulatory T cells (Tregs) in non-small cell lung cancer (NSCLC). Discussion These findings are anticipated to serve as pivotal evidence for the design of clinical trials and the analysis of the anticancer mechanisms of AhR-targeting therapies.
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Affiliation(s)
- Dong Kwon Kim
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chai Young Lee
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yu Jin Han
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - So Young Park
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Heekyung Han
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kwangmin Na
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mi Hyun Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Min Yang
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sujeong Baek
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Youngtaek Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joon Yeon Hwang
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seul Lee
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seong-san Kang
- Jeuk Institute for Cancer Research, Jeuk Co. Ltd., Gumi, Republic of Korea
| | - Min Hee Hong
- Division of Medical Oncology, Department of Internal Medicine and Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sun Min Lim
- Division of Medical Oncology, Department of Internal Medicine and Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jii Bum Lee
- Division of Medical Oncology, Department of Internal Medicine and Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Hwan Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byoung Chul Cho
- Division of Medical Oncology, Department of Internal Medicine and Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei New Il Han Institute for Integrative Lung Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyoung-Ho Pyo
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- Division of Medical Oncology, Department of Internal Medicine and Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei New Il Han Institute for Integrative Lung Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
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Seong H, Kim SH, Kim MH, Kim J, Eom JS. Additional local therapy before disease progression for EGFR-mutated advanced lung cancer: a systematic review and meta-analysis. Transl Lung Cancer Res 2024; 13:491-502. [PMID: 38601443 PMCID: PMC11002518 DOI: 10.21037/tlcr-23-830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/29/2024] [Indexed: 04/12/2024]
Abstract
Background International guidelines recommend the use of local therapy (LT) to limited progression in patients with epidermal growth factor receptor (EGFR)-mutated advanced non-small cell lung cancer (NSCLC). However, the use of LT before disease progression has not been extensively analyzed. This meta-analysis evaluates the efficacy and safety of administering additional LT in conjunction with first-line EGFR-tyrosine kinase inhibitors (TKIs) before disease progression in patients with EGFR-mutated advanced NSCLC. Methods We systematically searched PubMed, Embase, and the Cochrane Library for studies published up until May 31, 2023. The LT group consisted of patients who received first-line EGFR-TKIs in conjunction with additional LT, while the TKI group comprised participants treated with first-line EGFR-TKIs alone. Studies comparing the survival outcomes of the LT and TKI groups were included in this analysis. The primary outcomes were progression-free survival (PFS) and overall survival (OS). This review was registered on PROSPERO (registration number CRD42023439913). Results Among the 11 investigated studies covering 1,313 patients, the LT modalities included radiotherapy, surgery, and ablation therapy, which accounted for 91%, 27%, and 27% of the studies, respectively. The pooled hazard ratios of median PFS and OS were 0.34 [95% confidence interval (CI): 0.22-0.53; P<0.001] and 0.42 (95% CI: 0.36-0.48; P<0.001), respectively, which indicated significant benefits for the LT group compared to the TKI group. There was no significant difference between the LT and TKI groups (P=0.473) regarding the incidence of grade 3 or higher adverse events. Conclusions This study suggests that the strategic use of additional LT before disease progression is a promising approach for the treatment of EGFR-mutated advanced NSCLC.
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Affiliation(s)
- Hayoung Seong
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
- Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Soo Han Kim
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
- Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Mi Hyun Kim
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
- Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
| | - Jinmi Kim
- Department of Biostatistics, Clinical Trial Center, Pusan National University Hospital, Busan, Republic of Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Jung Seop Eom
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
- Department of Internal Medicine, Pusan National University Hospital, Busan, Republic of Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
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Na K, Lee S, Kim DK, Kim YS, Hwang JY, Kang SS, Baek S, Lee CY, Yang SM, Han YJ, Kim MH, Han H, Kim Y, Kim JH, Jeon S, Byeon Y, Lee JB, Lim SM, Hong MH, Pyo KH, Cho BC. CD81 and CD82 expressing tumor-infiltrating lymphocytes in the NSCLC tumor microenvironment play a crucial role in T-cell activation and cytokine production. Front Immunol 2024; 15:1336246. [PMID: 38515751 PMCID: PMC10954780 DOI: 10.3389/fimmu.2024.1336246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/02/2024] [Indexed: 03/23/2024] Open
Abstract
Introduction To understand the immune system within the tumor microenvironment (TME) of non-small cell lung cancer (NSCLC), it is crucial to elucidate the characteristics of molecules associated with T cell activation. Methods We conducted an in-depth analysis using single-cell RNA sequencing data obtained from tissue samples of 19 NSCLC patients. T cells were classified based on the Tumor Proportion Score (TPS) within the tumor region, and molecular markers associated with activation and exhaustion were analyzed in T cells from high TPS areas. Results Notably, tetraspanins CD81 and CD82, belonging to the tetraspanin protein family, were found to be expressed in activated T cells, particularly in cytotoxic T cells. These tetraspanins showed strong correlations with activation and exhaustion markers. In vitro experiments confirmed increased expression of CD81 and CD82 in IL-2-stimulated T cells. T cells were categorized into CD81highCD82high and CD81lowCD82low groups based on their expression levels, with CD81highCD82high T cells exhibiting elevated activation markers such as CD25 and CD69 compared to CD81lowCD82low T cells. This trend was consistent across CD3+, CD8+, and CD4+ T cell subsets. Moreover, CD81highCD82high T cells, when stimulated with anti-CD3, demonstrated enhanced secretion of cytokines such as IFN-γ, TNF-α, and IL-2, along with an increase in the proportion of memory T cells. Bulk RNA sequencing results after sorting CD81highCD82high and CD81lowCD82low T cells consistently supported the roles of CD81 and CD82. Experiments with overexpressed CD81 and CD82 showed increased cytotoxicity against target cells. Discussion These findings highlight the multifaceted roles of CD81 and CD82 in T cell activation, cytokine production, memory subset accumulation, and target cell cytolysis. Therefore, these findings suggest the potential of CD81 and CD82 as promising candidates for co-stimulatory molecules in immune therapeutic strategies for cancer treatment within the intricate TME.
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Affiliation(s)
- Kwangmin Na
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seul Lee
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Dong Kwon Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- Brain Korea 21 PLUS Project for Medical Science, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | - Young Seob Kim
- Yonsei New Il Han Institute for Integrative Lung Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joon Yeon Hwang
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seong-San Kang
- JEUK Institute for Cancer Research, JEUK Co., Ltd., Gumi-City, Republic of Korea
| | - Sujeong Baek
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chai Young Lee
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Min Yang
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yu Jin Han
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mi Hyun Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Heekyung Han
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Youngtaek Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Hwan Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seunghyun Jeon
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Youngseon Byeon
- Yonsei New Il Han Institute for Integrative Lung Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jii Bum Lee
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sun Min Lim
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Hee Hong
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyoung-Ho Pyo
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei New Il Han Institute for Integrative Lung Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byoung Chul Cho
- Yonsei New Il Han Institute for Integrative Lung Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
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Lee KB, Kim MH, Yoon JT, Song Y, Kwon B, Hwang SM, Choi JH, Lee DH. A simplified cranial cavity model to understand the relationship between intracranial pressure and dural sinus pressure. Interv Neuroradiol 2024; 30:57-63. [PMID: 35679068 PMCID: PMC10956465 DOI: 10.1177/15910199221107440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/27/2022] [Indexed: 11/15/2022] Open
Abstract
Although accurate intracranial pressure (ICP) monitoring is essential for the diagnosis and treatment of severe brain diseases, current methods are performed invasively. Therefore, a safe and less invasive ICP measurement is required. The purpose of our study was to develop a simplified cranial cavity model for a better understanding of the relationship between the ICP and the pressure measurement within the dural venous sinus (DVS) to support the validity of using sinus pressure as the surrogate of the ICP. The in-house cranial cavity model had three components: the brain part, the DVS part, and the subarachnoid space (SAS) part. Pressure in other parts was measured when the pressure in the SAS part and, separately, brain part was increased from 0 (baseline) to 50 mmHg at intervals of 10 mmHg. When the pressure in the SAS part was increased from 10 to 50 mmHg at 10 mmHg interval, pressures of both the brain and DVS parts increased without significant difference (all P > 0.05). However, pressures in both the SAS and DVS parts differed while the pressure in the brain part was increased. The pressures in both parts showed about 70% of the increase in the brain part. Nevertheless, the pressures in the SAS and DVS parts were not significantly different (P > 0.05). A simplified in-house cranial cavity model was developed consisting of three compartments to represent the actual intracranial spaces. The pressure measurement within the DVS was feasible to use as a surrogate for the ICP measurement.
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Affiliation(s)
- KB Lee
- Department of Radiologic Technology, Chungbuk Health & Science University, Cheongju 28150, Republic of Korea
| | - MH Kim
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - J-T Yoon
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Y Song
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - B Kwon
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - SM Hwang
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - JH Choi
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - DH Lee
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
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Kim Y, Hwang JY, Kim DK, Na K, Lee S, Baek S, Kang SS, Yang SM, Kim MH, Han H, Lee CY, Han YJ, Hong MH, Lee JB, Lim SM, Cho BC, Park Y, Pyo KH. Polo-like Kinase 4: A Multifaceted Marker Linking Tumor Aggressiveness and Unfavorable Prognosis, and Insights into Therapeutic Strategies. Cancers (Basel) 2023; 15:4663. [PMID: 37760631 PMCID: PMC10526937 DOI: 10.3390/cancers15184663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 09/29/2023] Open
Abstract
(1) Background: This study investigated whether polo-like kinase 4 (PLK4) is a suitable therapeutic target or biomarker for lung adenocarcinoma (LUAD). (2) Methods: We acquired LUAD data from The Cancer Genome Atlas (TCGA) database through the UCSC Xena data portal. Gene expression, clinical, survival, and mutation data from multiple samples were analyzed. Gene enrichment analysis, unsupervised clustering of PLK4-related pathways, and differential gene expression analyses were performed. Additionally, correlations, t-tests, survival analyses, and statistical analyses were performed. (3) Results: PLK4 expression was higher in LUAD tissues than in normal tissues and was associated with poor prognosis for both overall and progression-free survival in LUAD. PLK4 was highly correlated with cell-proliferation-related pathways using Gene Ontology (GO) biological process terms. PLK4 expression and pathways that were highly correlated with PLK4 expression levels were upregulated in patients with LUAD with the TP53 mutation. (4) Conclusions: PLK4 expression affects the survival of patients with LUAD and is a potential therapeutic target for LUAD with TP53 mutations.
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Affiliation(s)
- Youngtaek Kim
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
| | - Joon Yeon Hwang
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
| | - Dong Kwon Kim
- Severance Biomedical Science Institutse, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (D.K.K.); (S.L.)
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03186, Republic of Korea
| | - Kwangmin Na
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
| | - Seul Lee
- Severance Biomedical Science Institutse, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (D.K.K.); (S.L.)
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul 03186, Republic of Korea
| | - Sujeong Baek
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
| | - Seong-san Kang
- JEUK Institute for Cancer Research, JEUK Co., Ltd., Gumi 39418, Republic of Korea;
| | - Seung Min Yang
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
| | - Mi Hyun Kim
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
| | - Heekyung Han
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
| | - Chai Young Lee
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
| | - Yu Jin Han
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
| | - Min Hee Hong
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (M.H.H.); (J.B.L.); (S.M.L.); (B.C.C.)
| | - Jii Bum Lee
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (M.H.H.); (J.B.L.); (S.M.L.); (B.C.C.)
| | - Sun Min Lim
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (M.H.H.); (J.B.L.); (S.M.L.); (B.C.C.)
| | - Byoung Chul Cho
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (M.H.H.); (J.B.L.); (S.M.L.); (B.C.C.)
- Yonsei New Il Han Institute for Integrative Lung Cancer Research, College of Medicine, Yonsei University, Seoul 03186, Republic of Korea
| | - Youngjoon Park
- Department of Research Support, Yonsei Biomedical Research Institute, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (Y.K.); (J.Y.H.); (K.N.); (S.B.); (S.M.Y.); (M.H.K.); (H.H.); (C.Y.L.); (Y.J.H.)
- Yonsei New Il Han Institute for Integrative Lung Cancer Research, College of Medicine, Yonsei University, Seoul 03186, Republic of Korea
| | - Kyoung-Ho Pyo
- Severance Biomedical Science Institutse, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (D.K.K.); (S.L.)
- Division of Medical Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul 03186, Republic of Korea; (M.H.H.); (J.B.L.); (S.M.L.); (B.C.C.)
- Yonsei New Il Han Institute for Integrative Lung Cancer Research, College of Medicine, Yonsei University, Seoul 03186, Republic of Korea
- Department of Medical Science, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
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Kim J, Jang TW, Choi CM, Kim MH, Lee SY, Park CK, Chang YS, Lee KY, Kim SJ, Yang SH, Ryu JS, Lee JE, Lee SY, Park CK, Lee SH, Jang SH, Yoon SH. Real-world analysis of first-line afatinib in patients with EGFR-mutant non-small cell lung cancer and brain metastasis: survival and prognostic factors. Transl Lung Cancer Res 2023; 12:1197-1209. [PMID: 37425421 PMCID: PMC10326794 DOI: 10.21037/tlcr-22-832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 05/17/2023] [Indexed: 07/11/2023]
Abstract
Background Overall survival (OS) in patients with non-small cell lung cancer (NSCLC) and brain metastases (BMs) is poor. We aimed to identify prognostic factors and ascertain treatment outcomes of first-line afatinib for patients with epidermal growth factor receptor (EGFR)-mutant NSCLC with BM in a real-world setting. Methods This retrospective observational study reviewed electronic records of patients with EGFR-mutant NSCLC who received first-line afatinib treatment between October 2014 and October 2019 in 16 hospitals across South Korea. The Kaplan-Meier method estimated time on treatment (TOT) and OS; multivariate analyses were performed using Cox proportional hazards (PH) models. Results Among 703 patients who received first-line afatinib, 262 (37.3%) had baseline BM. Of 441 patients without baseline BM, 92 (20.9%) developed central nervous system (CNS) failure. Compared with patients without CNS failure, those with CNS failure during afatinib treatment were younger (P=0.012), had a higher Eastern Cooperative Oncology Group (ECOG) performance status (PS) (P<0.001), increased metastatic site involvement (P<0.001), advanced stage disease (P<0.001), with liver metastasis (P=0.008) and/or bone metastasis (P<0.001) at baseline. Cumulative incidence of CNS failure in years 1, 2 and 3 was 10.1%, 21.5% and 30.0%, respectively. In multivariate analysis, cumulative incidence was significantly higher in patients with ECOG PS ≥2 (P<0.001), uncommon EGFR mutations (P=0.001), and no baseline pleural metastasis (P=0.017). Median TOT was 16.0 months (95% CI: 14.8-17.2) and, in patients with CNS failure, without CNS failure, and with baseline BM was 12.2, 18.9, and 14.1 months, respectively (P<0.001). Median OS was 52.9 months (95% CI: 45.4-60.3) and, in patients with CNS failure, without CNS failure, and with baseline BM was 29.1, 67.3 and 48.5 months, respectively (P<0.001). Conclusions First-line afatinib in the real-world setting showed clinically meaningful effectiveness in patients with EGFR-mutant NSCLC and BM. CNS failure was a poor prognostic factor for TOT and OS correlating with younger age, poor ECOG PS, higher metastatic number, advanced disease stage, uncommon EGFR mutations, and baseline liver and/or bone metastases.
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Affiliation(s)
- Jehun Kim
- Department of Internal Medicine, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Republic of Korea
| | - Tae Won Jang
- Department of Internal Medicine, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan, Republic of Korea
| | - Chang Min Choi
- Department of Internal Medicine, Ulsan University Asan Medical Center, Seoul, Republic of Korea
| | - Mi Hyun Kim
- Department of Internal Medicine, Pusan National University Hospital, Pusan National University School of Medicine and Biomedical Research Institute, Pusan, Republic of Korea
| | - Sung Yong Lee
- Division of Pulmonology, Allergy, and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Cheol Kyu Park
- Department of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, Hwasun, Jeonnam, Republic of Korea
| | - Yoon Soo Chang
- Department of Internal Medicine, Yonsei University Gangnam Severance Hospital, Seoul, Republic of Korea
| | - Kye Young Lee
- Department of Internal Medicine, Konkuk University Medical Center, Seoul, Republic of Korea
| | - Seung Joon Kim
- Department of Internal Medicine, Catholic University Seoul St. Mary’s Hospital, Seoul, Republic of Korea
| | - Sei Hoon Yang
- Department of Internal Medicine, Wonkwang University Hospital, Iksan, Republic of Korea
| | - Jeong Seon Ryu
- Department of Internal Medicine, Inha University Hospital, Incheon, Republic of Korea
| | - Jeong Eun Lee
- Department of Internal Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Shin Yup Lee
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Chan Kwon Park
- Department of Internal Medicine, Catholic University Yeoudo St. Mary’s Hospital, Seoul, Republic of Korea
| | - Sang Hoon Lee
- Department of Internal Medicine, Yonsei University Severance Hospital, Seoul, Republic of Korea
| | - Seung Hun Jang
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea
| | - Seong Hoon Yoon
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
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7
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Lee MW, Kim J, Kim MH, Lim S, Kim J, Sung C. Development of a scintillator-based optical soft x-ray (OSXR) diagnostic system for KSTAR tokamak. Rev Sci Instrum 2023; 94:2891473. [PMID: 37204283 DOI: 10.1063/5.0146169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 04/28/2023] [Indexed: 05/20/2023]
Abstract
We have developed a new scintillator-based optical soft x-ray (OSXR) diagnostic system for KSTAR. By utilizing fiber optic faceplates, mm-size lens arrays, and fiber bundles, we have successfully constructed a novel optical system for scintillator-based soft x-ray detection to overcome the limited vacuum-port conditions in KSTAR. P47 (Y2SiO5), which has a fast rise (∼7 ns) and decay (∼100 ns) time sufficient for detecting plasma instabilities observed in the kHz-MHz spectral range, was selected as the scintillator material for the KSTAR OSXR system. Scintillation toward each detection channel is collected by the lens arrays coupled to optical fiber cores, which are connected to the photodetector system. Initial results obtained during the 2022 KSTAR experimental campaign support the validity of the OSXR data through the consistency of OSXR measurement results with other diagnostics. We also observe that the OSXR system can capture magnetohydrodynamic activities, such as sawtooth oscillations, and provide valuable information for disruption mitigation studies using shattered pellet injection.
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Affiliation(s)
- M W Lee
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Junghee Kim
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
| | - M H Kim
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
| | - Soobin Lim
- Department of Energy Systems Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Jayhyun Kim
- Korea Institute of Fusion Energy, Daejeon 34133, Republic of Korea
| | - C Sung
- Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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8
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Lee Y, Baek S, Kim DK, Lee Y, Kim D, Jo S, Lim SK, Shin YS, Kwon S, Yang SM, Kim YT, Kang SS, Synn CB, Na K, Kim MH, Han H, Han YJ, Lee S, Kim JH, Yun MR, Byeon Y, Kim YS, Lee JY, Lee JB, Kim CG, Hong MH, Lim SM, Pyo KH, Cho BC, Yoon T. Abstract 3234: OCT-598, a novel EP2/EP4 dual antagonist, promotes anti-tumor immune responses in syngeneic mouse tumor models in combination with standard-of-care chemo- and immunotherapies. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-3234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Prostaglandin E2 (PGE2) is widely recognized as one of the major bioactive lipids that, with the striking regenerative potential, promote drug-resistance in cancer cells as well as immune evasion in the tumor microenvironment (TME). Primarily driven by apoptotic cell death, PGE2 is thought to elicit wound-healing responses to help provide an immunosuppressive and proliferative niche that supports cancer stem cell repopulation and thereby therapy-resistance. While COX1/2 inhibitors that attenuate PGE2 production have shown promising anti-cancer effects in various (pre-)clinical settings, the gastrointestinal- and cardiotoxicities precluded their development as anti-cancer agents. It is anticipated that specific targeting of PGE2 signaling via its cognate receptors constitutes a safer and potentially more effective approach. Of the receptor subtypes EP1-4, Gα,s-coupled EP2 and EP4 are believed to be directly involved in immunosuppressive effects of PGE2.OCT-598 is a novel, highly potent and selective EP2/EP4 dual antagonist with Ki values of 23 nM and 0.2 nM vs EP2 and EP4, respectively. PGE2 inhibited normal differentiation of human monocytes into CD1a+CD16- dendritic cells under the presence of GM-CSF and IL-4 and promoted differentiation towards CD1a-CD16+ macrophages in vitro. However, EP2/EP4 dual inhibition by OCT-598 reversed this phenomenon to a greater extent than either EP2- or EP4-specific inhibitor alone. In vivo, OCT-598 effected tumor growth inhibition in multiple syngeneic mouse models as a single agent as well as in combination with an immune checkpoint blocker (ICB). Furthermore, the addition of OCT-598 to the lung cancer standard-of-care regimen (anti-PD-1 plus chemotherapy) in TC-1 mouse lung adenocarcinoma model gave rise to complete tumor regression. In conclusion, dual blockade of EP2 and EP4 by OCT-598 is shown to be a compelling strategy to reinforce antitumor effects by thwarting PGE2-mediated therapy resistance and immune evasion.Findings from this study provide a rationale for clinical development of OCT-598 as a therapeutic option for human malignant cancers.
Citation Format: Youngrae Lee, Sujeong Baek, Dong Kwon Kim, Yeri Lee, Donggeon Kim, Seongin Jo, Sang Kyun Lim, Young Sook Shin, Soonsang Kwon, Seung Min Yang, Young Taek Kim, Seong-San Kang, Chun-Bong Synn, Kwangmin Na, Mi Hyun Kim, Heekyung Han, Yu Jin Han, Sungwoo Lee, Jae Hwan Kim, Mi Ran Yun, Youngseon Byeon, Young Seob Kim, Ji Yun Lee, Jii Bum Lee, Chang Gon Kim, Min Hee Hong, Sun Min Lim, Kyoung-Ho Pyo, Byoung Chul Cho, Taeyoung Yoon. OCT-598, a novel EP2/EP4 dual antagonist, promotes anti-tumor immune responses in syngeneic mouse tumor models in combination with standard-of-care chemo- and immunotherapies [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 3234.
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Affiliation(s)
| | - Sujeong Baek
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong Kwon Kim
- 3Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yeri Lee
- 4KANAPH Therapeutics Inc., Seoul, Republic of Korea
| | - Donggeon Kim
- 4KANAPH Therapeutics Inc., Seoul, Republic of Korea
| | - Seongin Jo
- 4KANAPH Therapeutics Inc., Seoul, Republic of Korea
| | | | | | | | - Seung Min Yang
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Taek Kim
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seong-San Kang
- 5JEUK Institute for Cancer Research, Gumi, Republic of Korea
| | - Chun-Bong Synn
- 3Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kwangmin Na
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mi Hyun Kim
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Heekyung Han
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yu Jin Han
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sungwoo Lee
- 5JEUK Institute for Cancer Research, Gumi, Republic of Korea
| | - Jae Hwan Kim
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mi Ran Yun
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Youngseon Byeon
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Seob Kim
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ji Yun Lee
- 6Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jii Bum Lee
- 6Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chang Gon Kim
- 6Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Hee Hong
- 6Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sun Min Lim
- 6Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyoung-Ho Pyo
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byoung Chul Cho
- 6Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Republic of Korea
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Kim D, Baek S, Yang SM, Han YJ, Kang SS, Synn CB, Kim MH, Han H, Na K, Kim YT, Lee S, Han T, Doh H, Cho J, Kim D, Cha D, Kim JH, Byeon Y, Kim YS, Yun MR, Lee JY, Lee JB, Kim CG, Hong MH, Lim SM, Cho BC, Pyo KH. Abstract 5107: A novel AhR inhibitor ‘DA-4505’ improved the anti-cancer efficacy of surgical and chemotherapy via synergistic anti-tumor effects of aPD-1. Cancer Res 2023. [DOI: 10.1158/1538-7445.am2023-5107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Abstract
Abstract
Background: The Aryl hydrocarbon receptor (AhR) is one of the most predominant regulators of cancer metabolism. The AhR exerts important immunosuppressive functions by activating Treg cells and myeloid-derived suppressor cells and repressing CD8+ effector T cells. Here, we propose that a best-in-class AhR inhibitor, DA-4505, improves anti-tumor efficacy via modulation of tumor immune surveillance compared to BAY2416964, an AHR antagonist drug candidate being studied in the clinical phase.
Methods: To evaluate anti-tumor effects of DA-4505 and BAY2416964, the two AhR inhibitors were dosed at 10 mg/kg once daily alone or in combination with aPD-1 (10 mg/kg) in surgical and chemotherapy models, and a PDX model (YHIM2004). Tumor volume, relapse, and survival were evaluated, and immune profiles were analyzed with IHC, flow cytometry, and scRNAseq.
Results: A significant tumor reduction appeared in the CT26 and 4T1 tumor models after the DA-4505 treatment compared to vehicle group (P<0.05). In contrast, DA-4505 treatment did not induce significant tumor regression compared to vehicle group in tumor-bearing NOG mice, suggesting that anti-tumor effects of DA-4505 were driven by immunologic mechanisms. To evaluate the role of DA-4505 in conjunction with surgery, DA-4505 alone or in combination with anti-PD-1 was given prior to and following resection of the tumors in 4T1 tumor-bearing mice. Survival of mice treated with DA-4505 alone or DA-4505 combined with anti-PD-1 was significantly prolonged after resection compared to aPD-1 treatment group (P<0.05). In addition, there were four mice that did not have a relapse by treating DA-4505 with or without aPD-1 after surgery (4/5). A tumor regression also appeared in the YHIM2004-engrafted humanized mouse study. A tumor reduction was shown by treating DA-4505 alone or in combination with pembrolizumab compared to vehicle group (P<0.05). Next, we co-administered an AhR inhibitor and aPD-1 as a partner to improve the antitumor effects of chemotherapy. The DA-4505 add-on group showed tumor regression when compared with the combination therapy group treated with aPD-1 and chemotherapy (P<0.0001). In addition, a significant increase in survival rate was shown in the group treated with a DA-4505 add-on compared to vehicle group (P<0.001). Analysis of scRNAseq showed that M1 macrophage expressing CCL7 and CCL8 were increased in DA-4505 treated group compared to the vehicle and aPD-1 groups. This suggests that immune modulatory effect of DA-4505 may be due to enhanced recruitment of immune cells into the tumor site by macrophages with high chemotactic activity.
Conclusion: The AhR inhibitor DA-4505 demonstrated an improvement in anti-tumor efficacy. In addition, it has shown a synergistic effect when combined with aPD-1. Discoveries from this study provide a preclinical rationale for future clinical implications in solid tumor.
Citation Format: DongKwon Kim, Sujeong Baek, Seung Min Yang, Yu Jin Han, Seong-san Kang, Chun-Bong Synn, Mi Hyun Kim, Heekyung Han, Kwangmin Na, Young Taek Kim, Sungwoo Lee, Taedong Han, Hyounmie Doh, Jongho Cho, Dajeong Kim, Daewon Cha, Jae Hwan Kim, Youngseon Byeon, Young Seob Kim, Mi Ran Yun, Ji Yun Lee, Jii Bum Lee, Chang Gon Kim, Min Hee Hong, Sun Min Lim, Byoung Chul Cho, Kyoung-Ho Pyo. A novel AhR inhibitor ‘DA-4505’ improved the anti-cancer efficacy of surgical and chemotherapy via synergistic anti-tumor effects of aPD-1. [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 5107.
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Affiliation(s)
- DongKwon Kim
- 1Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicinei University Inst. for Cancer Research, Seoul, Republic of Korea
| | - Sujeong Baek
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Min Yang
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yu Jin Han
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seong-san Kang
- 3JEUK Institute for Cancer Research, JEUK Co., Ltd, Gumi, Republic of Korea
| | - Chun-Bong Synn
- 1Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicinei University Inst. for Cancer Research, Seoul, Republic of Korea
| | - Mi Hyun Kim
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Heekyung Han
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kwangmin Na
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Taek Kim
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sungwoo Lee
- 3JEUK Institute for Cancer Research, JEUK Co., Ltd, Gumi, Republic of Korea
| | - Taedong Han
- 4Dong-A ST Research Institute, Yongin, Republic of Korea
| | - Hyounmie Doh
- 4Dong-A ST Research Institute, Yongin, Republic of Korea
| | - Jongho Cho
- 4Dong-A ST Research Institute, Yongin, Republic of Korea
| | - Dajeong Kim
- 4Dong-A ST Research Institute, Yongin, Republic of Korea
| | - Daewon Cha
- 4Dong-A ST Research Institute, Yongin, Republic of Korea
| | - Jae Hwan Kim
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Youngseon Byeon
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Young Seob Kim
- 2Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Mi Ran Yun
- 5Yonsei New Il Han Institute for Integrative Lung Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Ji Yun Lee
- 6Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jii Bum Lee
- 6Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Chang Gon Kim
- 6Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Hee Hong
- 6Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sun Min Lim
- 6Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byoung Chul Cho
- 6Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kyoung-Ho Pyo
- 5Yonsei New Il Han Institute for Integrative Lung Cancer Research, Yonsei University College of Medicine, Seoul, Republic of Korea
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10
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Park J, An H, Lim J, Park IS, Kim MH, Kim JH, Kim SW, Koh YI, Lee EY, Cheon JH. Interplay between chronic inflammation and clonal haematopoiesis of indeterminate potential in Behçet's disease. Arthritis Res Ther 2023; 25:33. [PMID: 36864496 PMCID: PMC9979406 DOI: 10.1186/s13075-023-03014-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/14/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Clonal haematopoiesis of indeterminate potential (CHIP) is a predisposition to haematological malignancy whose relationship with chronic inflammatory diseases, such as cardiovascular diseases, has been highlighted. Here, we aimed to investigate the CHIP emergence rate and its association with inflammatory markers in Behçet's disease (BD). METHODS We performed targeted next-generation sequencing to detect the presence of CHIP using peripheral blood cells from 117 BD patients and 5004 healthy controls between March 2009 and September 2021 and analysed the association between CHIP and inflammatory markers. RESULTS CHIP was detected in 13.9% of patients in the control group and 11.1% of patients in the BD group, indicating no significant intergroup difference. Among the BD patients of our cohort, five variants (DNMT3A, TET2, ASXL1, STAG2, and IDH2) were detected. DNMT3A mutations were the most common, followed by TET2 mutations. CHIP carriers with BD had a higher serum platelet count, erythrocyte sedimentation rate, and C-reactive protein level; older age; and lower serum albumin level at diagnosis than non-CHIP carriers with BD. However, the significant association between inflammatory markers and CHIP disappeared after the adjustment for various variables, including age. Moreover, CHIP was not an independent risk factor for poor clinical outcomes in patients with BD. CONCLUSIONS Although BD patients did not have higher CHIP emergence rates than the general population, older age and degree of inflammation in BD were associated with CHIP emergence.
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Affiliation(s)
- Jihye Park
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea.,Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | | | - Jiwoo Lim
- Genome Opinion Inc, Seoul, South Korea
| | - I Seul Park
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea.,Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Mi Hyun Kim
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Ji Hyung Kim
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea.,Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Seung Won Kim
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea.,Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Young Il Koh
- Genome Opinion Inc, Seoul, South Korea.,Division of Hematology and Oncology, Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Eun Young Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, South Korea.
| | - Jae Hee Cheon
- Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemun-Gu, Seoul, 03722, South Korea. .,Institute of Gastroenterology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea. .,Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea.
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11
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Kim BG, Yuk JS, Kim GS, Seo JK, Jin MN, Lee HY, Seo YS, Kim MH, Yang SW, Yoon SH, Byun YS, Kim BO. Effect of early hysterectomy on a risk of incident cardiovascular disease in women: a nationwide population-based cohort study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Aim
Women who inevitably underwent surgical hysterectomy before natural menopause may have an earlier increase in hematocrit and storage iron than women who continue menstruation, thereby increasing the risk of cardiovascular disease (CVD) early. We aimed to evaluate the association of women with hysterectomy vs. without hysterectomy before their 50s with the risk of incident CVD.
Methods
This was a retrospective-cohort study, 135,575 women aged 40 to 50 years in 2011–2014 were extracted from the Korean Health Insurance Review and Assessment Service data and after propensity score matching, 55,539 pairs were included in hysterectomy and non-hysterectomy group respectively. The primary endpoint was major adverse cardiac and cerebrovascular events (MACCE), a composite of cardiovascular death, myocardial infarction (MI), stroke, and coronary artery revascularization.
Results
After adjustment for confounding factors, hysterectomy group had an increased risk of MACCE compared with non-hysterectomy group (hazard ratio [HR], 1.25; 95% confidence interval [CI], 1.09–1.44). Regarding individual outcomes, cardiovascular death, MI, and coronary revascularization were comparable between the groups, whereas, the risk of stroke was significantly higher in hysterectomy group than non-hysterectomy group (HR, 1.31; 95% CI, 1.12–1.53). Even after excluding women who underwent oophorectomy, hysterectomy group had a higher risk of MACCE than non-hysterectomy group (HR, 1.24; 95% CI 1.06–1.44).
Conclusions
Early surgical menopause due to hysterectomy, not hormonal menopause, was associated with an increased risk for a composite of CVD, especially stroke. This suggest that the role of “uterus” as well as sex hormones may be important for the sharp increase in the risk of CVD in women after menopause.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- B G Kim
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - J S Yuk
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - G S Kim
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - J K Seo
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - M N Jin
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - H Y Lee
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - Y S Seo
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - M H Kim
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - S W Yang
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - S H Yoon
- Sanggye Paik Hospital, Obstetrics and Gynecology , Seoul , Korea (Republic of)
| | - Y S Byun
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
| | - B O Kim
- Inje University Sanggye Paik Hospital, Cardiology , Seoul , Korea (Republic of)
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Kim MH, Hwang I, Park JW, Yu HT, Kim TH, Uhm JS, Joung B, Lee MH, Pak HN. Blunted atrial reverse remodeling a year after catheter ablation for atrial fibrillation and their long-term rhythm outcome. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Although active rhythm control by atrial fibrillation (AF) catheter ablation (AFCA) reduces left atrial (LA) dimension, blunted atrial reverse remodeling can be observed in patients with significant atrial myopathy. We explored the characteristics and long-term outcomes of AF patients who showed blunted atrial reverse remodeling despite no AF recurrence within a year after AFCA.
Methods
Among a total of 2,756 patients with AFCA, we included 1,685 patients (74.8% male, 60.2±10.1 years old, 54.5% paroxysmal AF) who underwent both baseline and 1-year follow-up echocardiogram, baseline LA>40mm, and did not recur within a year. We divided them into tertile groups (T1–T3) based on one-year percent change of LA dimension after propensity matching for age, sex, AF type, and baseline LA dimension. We also investigated the patients' genetic characteristics with blunted LA reverse remodeling (T1) using a genome-wide association study (GWAS).
Results
Patients with blunted LA reverse remodeling (T1, n=424) were independently associated with body mass index (OR 1.082 [1.010–1.160], p=0.025), LA peak pressure (OR 1.010 [1.002–1.019], p=0.019), LA wall thickness (OR 0.448 [0.252–0.789], p=0.006), LA voltage (OR 0.651 [0.463–0.907], p=0.012), and pericardial fat volume (OR 1.004 [1.001–1.008], p=0.014). Throughout 65.9±37.4 months of follow-up, the incidence of AF recurrence a year after the procedure was significantly higher in the T1 group than in T2 or T3 groups (Log-rank p<0.001). Among 894 patients with GWAS, ATXN1, XPO7, KRR1_PHLDA1, ZFHX3, and their polygenic risk score were associated with blunted LA reverse remodeling.
Conclusions
Patients with blunted LA reverse remodeling after AFCA were independently associated with low LA voltage, thin wall thickness, high LA pressure, and fat volume, and have a genetic background. Long-term clinical recurrence a year after AFCA was higher in this patient group with suspicious atrial myopathy.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Ministry of Health and WelfareNational Research Foundation of Korea
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Affiliation(s)
- M H Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - I Hwang
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - J W Park
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H T Yu
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - T H Kim
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - J S Uhm
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - B Joung
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - M H Lee
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
| | - H N Pak
- Severance Cardiovascular Hospital, Yonsei University College of Medicine , Seoul , Korea (Republic of)
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Kim J, Kim T, Jang TW, Kang H, Kim MH, Yoon SH, Son CH, Lee HK, Kim HK, Lee SY, Shin KC, Han JY, Kang EJ. Clinical outcomes of hyperprogression based on volumetry in non-small cell lung cancer after immune checkpoint inhibitor treatment. Thorac Cancer 2022; 13:2170-2179. [PMID: 35785522 PMCID: PMC9346184 DOI: 10.1111/1759-7714.14539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Hyperprogressive disease (HPD) is a novel pattern of the treatment course after immune checkpoint inhibitor (ICI) therapy in patients with non-small cell lung cancer (NSCLC). This study aimed to investigate the clinical characteristics, outcomes, and associated factors of HPD using a semiautomatic volume measurement. METHODS This retrospective study enrolled patients with recurrent and/or metastatic NSCLC treated with ICIs between January 2015 and August 2019 at eight tertiary centers in Korea. HPD was defined according to the tumor growth kinetics and time to treatment failure. Tumor volume was measured using a semiautomatic software. RESULTS A total of 219 NSCLC patients with 35 HPD by volumetric measurement (HPDv) (15.9%) were enrolled. The median duration of overall survival (OS) and OS after ICI treatment (ICI-OS) were 34.5 and 18.4 months, respectively. HPDv patients had significantly worse progression-free survival (PFS) than progressive disease patients without HPDv (1.16 vs. 1.82 months, p-value <0.001). ICI-OS did not significantly differ between patients with HPDv and those without HPDv (2.66 vs. 5.4 months, p = 0.105). PD-L1 expression lower than 50%, more than three metastatic sites, neutrophil-to-lymphocyte ratio equal to or higher than 3.3, and hemoglobin level lower than 10 were found to be associated with HPDv. CONCLUSIONS There is no standardized definition of HPD. However, defining HPD in NSCLC patients treated with ICI using a semiautomatic volume measurement software is feasible.
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Affiliation(s)
- Jehun Kim
- Division of Pulmonology, Department of Internal Medicine, Kosin University College of Medicine, Kosin University Gospel Hospital, Busan, South Korea
| | - Taeyun Kim
- Department of Internal Medicine, The Armed Forces Goyang Hospital, Goyang-si, South Korea
| | - Tae Won Jang
- Division of Pulmonology, Department of Internal Medicine, Kosin University College of Medicine, Kosin University Gospel Hospital, Busan, South Korea
| | - Hee Kang
- Department of Radiology, Kosin University College of Medicine, Kosin University Gospel Hospital, Busan, South Korea
| | - Mi Hyun Kim
- Division of Pulmonology, Department of Internal Medicine, Pusan National University Hospital, Pusan, South Korea
| | - Seong Hoon Yoon
- Division of Pulmonology, Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, South Korea
| | - Choon-Hee Son
- Division of Pulmonology, Department of Internal Medicine, Gwanghye General Hospital, Pusan, South Korea
| | - Hyun-Kyung Lee
- Division of Pulmonology, Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, South Korea
| | - Hyun-Kuk Kim
- Division of Pulmonology, Department of Internal Medicine, Inje University Haeundae Paik Hospital, Busan, South Korea
| | - Shin Yup Lee
- Division of Pulmonology, Department of Internal Medicine, Kyungpook National University Chilgok Hospital, Daegu, South Korea
| | - Kyeong Choel Shin
- Division of Pulmonology, Department of Internal Medicine, Yeungnam University Hospital, Daegu, South Korea
| | - Ji-Yeon Han
- Department of Radiology, Inje University Busan Paik Hospital, Busan, South Korea
| | - Eun-Ju Kang
- Department of Radiology, Dong-A University College of Medicine, Busan, South Korea
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Lee BS, Kim MH, Chu SY, Jung WJ, Jeong HJ, Lee K, Kim HS, Kim MH, Kil HS, Han SJ, Lee YJ, Lee KC, Lim SM, Chi DY. Improving Theranostic Gallium-68/Lutetium-177-Labeled PSMA Inhibitors with an Albumin Binder for Prostate Cancer. Mol Cancer Ther 2021; 20:2410-2419. [PMID: 34725194 DOI: 10.1158/1535-7163.mct-21-0251] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/21/2021] [Accepted: 09/29/2021] [Indexed: 11/16/2022]
Abstract
We developed a novel therapeutic radioligand, [177Lu]1h, with an albumin binding motif and evaluated it in a prostate-specific membrane antigen (PSMA)-expressing tumor xenograft mouse model. Fourteen PSMA target candidates were synthesized, and binding affinity was evaluated with an in vitro competitive binding assay. First, four compound candidates were selected depending on binding affinity results. Next, we selected four compounds ([68Ga]1e, [68Ga]1g, [68Ga]1h, and [68Ga]1k) were screened for tumor targeting efficiency by micro-positron emission tomography/computed tomography (micro-PET/CT) imaging. Finally, [177Lu]1h compound was evaluated the tumor targeting efficiency and therapeutic efficiency by micro-single-photon emission computed tomography/computed tomography (micro-SPECT/CT), biodistribution, and radiotherapy studies. Estimated human effective dose was calculated by biodistribution data. Compound 1h showed a high binding affinity (Ki value = 4.08 ± 0.08 nmol/L), and [177Lu]1h showed extended blood circulation (1 hour = 10.32 ± 0.31, 6 hours = 2.68 ± 1.07%ID/g) compared to [177Lu]PSMA-617 (1 h = 0.17 ± 0.10%ID/g). [177Lu]1h was excreted via the renal pathway and showed high tumor uptake (24.43 ± 3.36%ID/g) after 1 hour, which increased over 72 hours (72 hours = 51.39 ± 9.26%ID/g). Mice treated with 4 and 6 MBq of [177Lu]1h showed a median survival rate of >61 days. In particular, all mice treated with 6 MBq of [177Lu]1h survived for the entire monitoring period. The estimated human effective dose of [177Lu]1h was 0.07 ± 0.01 and 0.03 ± 0.00 mSv/MBq in total body and kidney, respectively. The current study indicates that [177Lu]1h has the potential for further investigation of metastatic castration-resistant prostate cancer (mCRPC) therapy in clinical trials.
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Affiliation(s)
- Byoung Se Lee
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Min Hwan Kim
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - So Young Chu
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Woon Jung Jung
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Hyeon Jin Jeong
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Kyongkyu Lee
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Hyeon Seok Kim
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Mi Hyun Kim
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Hee Seup Kil
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Sang Jin Han
- Division of Applied RI, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - Yong Jin Lee
- Division of Applied RI, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - Kyo Chul Lee
- Division of Applied RI, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - Sang Moo Lim
- Department of Nuclear Medicine, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - Dae Yoon Chi
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea.
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Lee J, Kim C, Seol HY, Chung HS, Mok J, Lee G, Jo EJ, Kim MH, Lee K, Kim KU, Park HK, Lee MK, Eom JS. Safety and Diagnostic Yield of Radial Probe Endobronchial Ultrasound-Guided Biopsy for Peripheral Lung Lesions in Patients with Idiopathic Pulmonary Fibrosis: A Multicenter Cross-Sectional Study. Respiration 2021; 101:401-407. [PMID: 34802001 DOI: 10.1159/000520034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 09/29/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Radial probe endobronchial ultrasound-guided transbronchial lung biopsy (RP-EBUS-TBLB) is widely used for diagnosis of peripheral lung lesions (PLLs). To date, there have been no reports regarding the clinical outcomes of RP-EBUS-TBLB for PLLs in patients with idiopathic pulmonary fibrosis (IPF). OBJECTIVES This study was performed between October 2017 and December 2019 to identify the safety and diagnostic performance of RP-EBUS-TBLB in IPF patients. METHODS Patients were divided into the usual interstitial pneumonia (UIP) group (n = 39, 4%), the probable UIP group (n = 12, 1%), and the noninterstitial lung disease (non-ILD) group (n = 903, 95%). RESULTS The diagnostic yield was significantly lower in the UIP group than in the non-ILD group (62% vs. 76%; p = 0.042), but there were no significant differences between the UIP and probable UIP groups (62% vs. 83%; p = 0.293) or the probable UIP and non-ILD groups (83% vs. 76%; p = 0.741). Multivariate logistic analysis showed that the mean diameter of PLLs, positive bronchus sign on CT, and "within the lesion" status on EBUS were independently associated with success of the procedure. Especially, the presence of the UIP pattern on CT (OR, 0.385; 95% CI: 0.172-0.863; p = 0.020) was independently associated with failed diagnosis. Among patients with UIP, "within the lesion" status on EBUS (OR, 25.432; 95% CI: 2.321-278.666; p = 0.008) was shown to be a factor contributing to a successful diagnosis. Overall, there were no significant differences in complication rates among the 3 study groups. CONCLUSION RP-EBUS-TBLB can be performed safely with an acceptable diagnostic yield, even in patients with IPF.
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Affiliation(s)
- Jaemin Lee
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Changhwan Kim
- Department of Internal Medicine, Jeju National University School of Medicine, Jeju, Republic of Korea
| | - Hee Yun Seol
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Hyeon Sung Chung
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Jeongha Mok
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Geewon Lee
- Department of Radiology, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Eun Jong Jo
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Mi Hyun Kim
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Kwangha Lee
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Ki Uk Kim
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Hye-Kyung Park
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Min Ki Lee
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Jung Seop Eom
- Department of Internal Medicine, Pusan National University School of Medicine, Busan, Republic of Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
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Kim SY, Kim MH, Son JH, Kim SI, Yun SH, Kim K, Kim S, Shin M, Lee JC. Outer membrane vesicles produced by Burkholderia cepacia cultured with subinhibitory concentrations of ceftazidime enhance pro-inflammatory responses. Virulence 2021; 11:995-1005. [PMID: 32799627 PMCID: PMC7567438 DOI: 10.1080/21505594.2020.1802193] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BURKHOLDERIA CEPACIA is an opportunistic pathogen that infects patients with debilitating underlying diseases. This study investigated the production of outer membrane vesicles (OMVs) by B. cepacia cultured with sub-minimum inhibitory concentrations (MICs) of antibiotics and examined their pathogenic roles both in vitro and in vivo. B. cepacia ATCC 25416 produced more OMVs under antibiotic stress conditions than controls. OMVs isolated from B. cepacia cultured in Luria-Bertani (LB) broth (OMVs/LB) induced cytotoxicity and the expression of pro-inflammatory cytokine genes in A549 cells in a dose-dependent manner. Host cell cytotoxicity and pro-inflammatory responses were significantly higher in A549 cells treated with B. cepacia OMVs cultured with 1/4 MIC of ceftazidime (OMVs/CAZ) than in the cells treated with OMVs/LB, OMVs cultured with 1/4 MIC of trimethoprim/sulfamethoxazole (OMVs/SXT), or OMVs cultured with 1/4 MIC of meropenem. Intratracheal injection of B. cepacia OMVs also induced histopathology in vivo in mouse lungs. Expressions of IL-1β and TNF-α genes were significantly up-regulatedin the lungs of mice treated with OMVs/CAZ compared to mice administered other OMVs; the expression of the GRO-α gene, however, was significantly up-regulated in OMVs/SXT. In conclusion, OMVs produced by B. cepacia under different antibiotic stress conditions induce different host responses that may contribute to the pathogenesis of B. cepacia.
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Affiliation(s)
- Se Yeon Kim
- Department of Microbiology, School of Medicine, Kyungpook National University , Daegu, Republic of Korea
| | - Mi Hyun Kim
- Department of Microbiology, School of Medicine, Kyungpook National University , Daegu, Republic of Korea
| | - Joo Hee Son
- Department of Microbiology, School of Medicine, Kyungpook National University , Daegu, Republic of Korea
| | - Seung Il Kim
- Drug & Disease Target Team, Korea Basic Science Institute , Ochang, Republic of Korea.,Department of Bio-Analytical Science, University of Science and Technology (UST) , Daejeon, Republic of Korea
| | - Sung Ho Yun
- Drug & Disease Target Team, Korea Basic Science Institute , Ochang, Republic of Korea
| | - Kyeongmin Kim
- Department of Microbiology, School of Medicine, Kyungpook National University , Daegu, Republic of Korea
| | - Shukho Kim
- Department of Microbiology, School of Medicine, Kyungpook National University , Daegu, Republic of Korea
| | - Minsang Shin
- Department of Microbiology, School of Medicine, Kyungpook National University , Daegu, Republic of Korea
| | - Je Chul Lee
- Department of Microbiology, School of Medicine, Kyungpook National University , Daegu, Republic of Korea
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Kim JH, Park KJ, Kim MH, Kim JK. Preoperative Assessment of Renal Sinus Invasion by Renal Cell Carcinoma according to Tumor Complexity and Imaging Features in Patients Undergoing Radical Nephrectomy. Korean J Radiol 2021; 22:1323-1331. [PMID: 34047502 PMCID: PMC8316778 DOI: 10.3348/kjr.2020.0984] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 02/04/2021] [Accepted: 02/22/2021] [Indexed: 01/20/2023] Open
Abstract
Objective To identify the association between renal tumor complexity and pathologic renal sinus invasion (RSI) and evaluate the usefulness of computed tomography tumor features for predicting RSI in patients with renal cell carcinoma (RCC). Materials and Methods This retrospective study included 276 consecutive patients who underwent radical nephrectomy for RCC with a size of ≤ 7 cm between January 2014 and October 2017. Tumor complexity and anatomical renal sinus involvement were evaluated using two standardized scoring systems: the radius (R), exophytic or endophytic (E), nearness to collecting system or sinus (N), anterior or posterior (A), and location relative to polar lines (RENAL) nephrometry and preoperative aspects and dimensions used for anatomical classification (PADUA) system. CT-based tumor features, including shape, enhancement pattern, margin at the interface of the renal sinus (smooth vs. non-smooth), and finger-like projection of the mass, were also assessed by two independent radiologists. Univariable and multivariable logistic regression analyses were performed to identify significant predictors of RSI. The positive predictive value, negative predictive value (NPV), accuracy of anatomical renal sinus involvement, and tumor features were evaluated. Results Eighty-one of 276 patients (29.3%) demonstrated RSI. Among highly complex tumors (RENAL or PADUA score ≥ 10), the frequencies of RSI were 42.4% (39/92) and 38.0% (71/187) using RENAL and PADUA scores, respectively. Multivariable analysis showed that a non-smooth margin and the presence of a finger-like projection were significant predictors of RSI. Anatomical renal sinus involvement showed high NPVs (91.7% and 95.2%) but low accuracy (40.2% and 43.1%) for RSI, whereas the presence of a non-smooth margin or finger-like projection demonstrated comparably high NPVs (90.0% and 91.3% for both readers) and improved accuracy (67.0% and 73.9%, respectively). Conclusion A non-smooth margin or the presence of a finger-like projection can be used as a preoperative CT-based tumor feature for predicting RSI in patients with RCC.
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Affiliation(s)
- Ji Hoon Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Kye Jin Park
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
| | - Mi Hyun Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jeong Kon Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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18
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Roh J, Ahn HY, Kim I, Son JH, Seol HY, Kim MH, Lee MK, Eom JS. Clinical course of asymptomatic malignant pleural effusion in non-small cell lung cancer patients: A multicenter retrospective study. Medicine (Baltimore) 2021; 100:e25748. [PMID: 34106603 PMCID: PMC8133234 DOI: 10.1097/md.0000000000025748] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 04/07/2021] [Indexed: 11/26/2022] Open
Abstract
The British Thoracic Society guidelines recommend observation for patients with asymptomatic malignant pleural effusion (MPE). However, asymptomatic MPE can become symptomatic. This study examined the clinical course of asymptomatic MPE in patients with non-small cell lung cancer (NSCLC), including the incidence and timing of symptom development of asymptomatic MPE and the associated factors.Retrospective data of 4822 NSCLC patients between January 2012 and December 2017 were reviewed. Symptom development of asymptomatic MPE was defined as the development of symptoms requiring additional treatment, such as insertion of a chest tube, within 1 year in patients who lacked MPE symptoms at the time of diagnosis. Clinical information, pathological parameters, and radiological characteristics were reviewed. Patient data up to 1 year from the initial diagnosis were reviewed.Of 113 patients with asymptomatic MPE, 46 (41%) became symptomatic within 1 year despite appropriate anticancer treatment. The median time to symptom development was 4 months, and 38 patients (83%) developed symptoms within 6 months. Multivariate logistic regression showed that female sex (odds ratio [OR], 0.256; 95% confidence interval [CI], 0.101-0.649; P = .004) and the depth of pleural effusion on initial computed tomography (CT) (OR, 0.957; 95% CI, 0.932-0.982; P = .001) were independently associated with symptom development of asymptomatic MPE.A fraction of 41% of patients with asymptomatic MPE became symptomatic within 1 year. Female sex and larger MPE on initial CT were independently associated with symptom development of asymptomatic MPE.
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Affiliation(s)
- Jiyeon Roh
- Department of Internal Medicine
- Biomedical Research Institute, Pusan National University Hospital
| | - Hyo Yeong Ahn
- Biomedical Research Institute, Pusan National University Hospital
- Department of Thoracic and Cardiovascular Surgery, Pusan National University School of Medicine
| | - Insu Kim
- Department of Internal Medicine, Dong-A University Hospital, Busan
| | | | - Hee Yun Seol
- Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | | | | | - Jung Seop Eom
- Department of Internal Medicine
- Biomedical Research Institute, Pusan National University Hospital
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Kim MH, Moon DC, Kim SJ, Mechesso AF, Song HJ, Kang HY, Choi JH, Yoon SS, Lim SK. Nationwide Surveillance on Antimicrobial Resistance Profiles of Enterococcus faecium and Enterococcus faecalis Isolated from Healthy Food Animals in South Korea, 2010 to 2019. Microorganisms 2021; 9:microorganisms9050925. [PMID: 33925822 PMCID: PMC8144984 DOI: 10.3390/microorganisms9050925] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022] Open
Abstract
Intestinal commensal bacteria are considered good indicators for monitoring antimicrobial resistance. We investigated the antimicrobial resistance profiles and resistance trends of Enterococcus faecium and Enterococcus faecalis isolated from food animals in Korea between 2010 and 2019. E. faecium and E. faecalis, isolated from chickens and pigs, respectively, presented a relatively high resistance rate to most of the tested antimicrobials. We observed high ciprofloxacin (67.9%), tetracycline (61.7%), erythromycin (59.5%), and tylosin (53.0%) resistance in E. faecium isolated from chickens. Similarly, more than half of the E. faecalis isolates from pigs and chickens were resistant to erythromycin, tetracycline and tylosin. Notably, we observed ampicillin, daptomycin, tigecycline and linezolid resistance in a relatively small proportion of enterococcal isolates. Additionally, the enterococcal strains exhibited an increasing but fluctuating resistance trend (p < 0.05) to some of the tested antimicrobials including daptomycin and/or linezolid. E. faecalis showed higher Multidrug resistance (MDR) rates than E. faecium in cattle (19.7% vs. 8.6%, respectively) and pigs (63.6% vs. 15.6%, respectively), whereas a comparable MDR rate (≈60.0%) was noted in E. faecium and E. faecalis isolated from chickens. Collectively, the presence of antimicrobial-resistant Enterococcus in food animals poses a potential risk to public health.
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20
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Hayakawa SH, Agari K, Ahn JK, Akaishi T, Akazawa Y, Ashikaga S, Bassalleck B, Bleser S, Ekawa H, Endo Y, Fujikawa Y, Fujioka N, Fujita M, Goto R, Han Y, Hasegawa S, Hashimoto T, Hayakawa T, Hayata E, Hicks K, Hirose E, Hirose M, Honda R, Hoshino K, Hoshino S, Hosomi K, Hwang SH, Ichikawa Y, Ichikawa M, Imai K, Inaba K, Ishikawa Y, Ito H, Ito K, Jung WS, Kanatsuki S, Kanauchi H, Kasagi A, Kawai T, Kim MH, Kim SH, Kinbara S, Kiuchi R, Kobayashi H, Kobayashi K, Koike T, Koshikawa A, Lee JY, Ma TL, Matsumoto SY, Minakawa M, Miwa K, Moe AT, Moon TJ, Moritsu M, Nagase Y, Nakada Y, Nakagawa M, Nakashima D, Nakazawa K, Nanamura T, Naruki M, Nyaw ANL, Ogura Y, Ohashi M, Oue K, Ozawa S, Pochodzalla J, Ryu SY, Sako H, Sato S, Sato Y, Schupp F, Shirotori K, Soe MM, Soe MK, Sohn JY, Sugimura H, Suzuki KN, Takahashi H, Takahashi T, Takeda T, Tamura H, Tanida K, Theint AMM, Tint KT, Toyama Y, Ukai M, Umezaki E, Watabe T, Watanabe K, Yamamoto TO, Yang SB, Yoon CS, Yoshida J, Yoshimoto M, Zhang DH, Zhang Z. Observation of Coulomb-Assisted Nuclear Bound State of Ξ^{-}-^{14}N System. Phys Rev Lett 2021; 126:062501. [PMID: 33635678 DOI: 10.1103/physrevlett.126.062501] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 11/19/2020] [Accepted: 12/23/2020] [Indexed: 06/12/2023]
Abstract
In an emulsion-counter hybrid experiment performed at J-PARC, a Ξ^{-} absorption event was observed which decayed into twin single-Λ hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as Ξ^{-}+^{14}N→_{Λ}^{10}Be+_{Λ}^{5}He. For the binding energy of the Ξ^{-} hyperon in the Ξ^{-}-^{14}N system a value of 1.27±0.21 MeV was deduced. The energy level of Ξ^{-} is likely a nuclear 1p state which indicates a weak ΞN-ΛΛ coupling.
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Affiliation(s)
- S H Hayakawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Agari
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Korea
| | - T Akaishi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - Y Akazawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - S Ashikaga
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - B Bassalleck
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - S Bleser
- Helmholtz Institute Mainz, 55099 Mainz, Germany
| | - H Ekawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - Y Endo
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Fujikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Fujioka
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Fujita
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - R Goto
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Han
- Institute of Nuclear Energy Safety Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - S Hasegawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - T Hashimoto
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - T Hayakawa
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - E Hayata
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - K Hicks
- Department of Physics & Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - E Hirose
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - M Hirose
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - R Honda
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Hoshino
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - S Hoshino
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - K Hosomi
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S H Hwang
- Korea Research Institute of Standards and Science, Daejeon 34113, Korea
| | - Y Ichikawa
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - M Ichikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Meson Science Laboratory, RIKEN, Wako 351-0198, Japan
| | - K Imai
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - K Inaba
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - Y Ishikawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - H Ito
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Ito
- Department of Physics, Nagoya University, Nagoya 464-8601, Japan
| | - W S Jung
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S Kanatsuki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Kanauchi
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A Kasagi
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - T Kawai
- Center for Advanced Photonics, RIKEN, Wako 351-0198, Japan
| | - M H Kim
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S H Kim
- Department of Physics, Korea University, Seoul 02841, Korea
| | - S Kinbara
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - R Kiuchi
- Institute of High Energy Physics, Beijing 100049, China
| | - H Kobayashi
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Kobayashi
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - T Koike
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A Koshikawa
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - J Y Lee
- Department of Physics, Seoul National University, Seoul 08826, Korea
| | - T L Ma
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
| | - S Y Matsumoto
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
- Meson Science Laboratory, RIKEN, Wako 351-0198, Japan
| | - M Minakawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K Miwa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - A T Moe
- Department of Physics, Lashio University, Lashio 06301, Myanmar
| | - T J Moon
- Department of Physics, Seoul National University, Seoul 08826, Korea
| | - M Moritsu
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - Y Nagase
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Nakada
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - M Nakagawa
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
| | - D Nakashima
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Nakazawa
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - T Nanamura
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - M Naruki
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - A N L Nyaw
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - Y Ogura
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Ohashi
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - K Oue
- Department of Physics, Osaka University, Toyonaka 560-0043, Japan
| | - S Ozawa
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - J Pochodzalla
- Helmholtz Institute Mainz, 55099 Mainz, Germany
- Institut fur Kernphysik, Johannes Gutenberg-Universitat, 55099 Mainz, Germany
| | - S Y Ryu
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - H Sako
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S Sato
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - Y Sato
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - F Schupp
- Helmholtz Institute Mainz, 55099 Mainz, Germany
| | - K Shirotori
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - M M Soe
- Department of Physics, University of Yangon, Yangon 11041, Myanmar
| | - M K Soe
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - J Y Sohn
- Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - H Sugimura
- Accelerator Laboratory, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - K N Suzuki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Takahashi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Takahashi
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
| | - T Takeda
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Tamura
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - A M M Theint
- Graduate School of Engineering, Gifu University, Gifu 501-1193, Japan
| | - K T Tint
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - Y Toyama
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Ukai
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba 305-0801, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - E Umezaki
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T Watabe
- Department of Physics, Nagoya University, Nagoya 464-8601, Japan
| | - K Watanabe
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - T O Yamamoto
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan
| | - S B Yang
- Department of Physics, Korea University, Seoul 02841, Korea
| | - C S Yoon
- Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Korea
| | - J Yoshida
- High Energy Nuclear Physics Laboratory, RIKEN, Wako 351-0198, Japan
- Department of Physics, Tohoku University, Sendai 980-8578, Japan
| | - M Yoshimoto
- Faculty of Education, Gifu University, Gifu 501-1193, Japan
| | - D H Zhang
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
| | - Z Zhang
- Institute of Modern Physics, Shanxi Normal University, Linfen 041004, China
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21
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Kim N, Kim HJ, Oh MH, Kim SY, Kim MH, Son JH, Kim SI, Shin M, Lee YC, Lee JC. The role of Zur-regulated lipoprotein A in bacterial morphology, antimicrobial susceptibility, and production of outer membrane vesicles in Acinetobacter baumannii. BMC Microbiol 2021; 21:27. [PMID: 33461493 PMCID: PMC7812711 DOI: 10.1186/s12866-020-02083-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 12/29/2020] [Indexed: 11/21/2022] Open
Abstract
Background Zinc uptake-regulator (Zur)-regulated lipoprotein A (ZrlA) plays a role in bacterial fitness and overcoming antimicrobial exposure in Acinetobacter baumannii. This study further characterized the zrlA gene and its encoded protein and investigated the roles of the zrlA gene in bacterial morphology, antimicrobial susceptibility, and production of outer membrane vesicles (OMVs) in A. baumannii ATCC 17978. Results In silico and polymerase chain reaction analyses showed that the zrlA gene was conserved among A. baumannii strains with 97–100% sequence homology. Recombinant ZrlA protein exhibited a specific enzymatic activity of D-alanine-D-alanine carboxypeptidase. Wild-type A. baumannii exhibited more morphological heterogeneity than a ΔzrlA mutant strain during stationary phase. The ΔzrlA mutant strain was more susceptible to gentamicin than the wild-type strain. Sizes and protein profiles of OMVs were similar between the wild-type and ΔzrlA mutant strains, but the ΔzrlA mutant strain produced 9.7 times more OMV particles than the wild-type strain. OMVs from the ΔzrlA mutant were more cytotoxic in cultured epithelial cells than OMVs from the wild-type strain. Conclusions The present study demonstrated that A. baumannii ZrlA contributes to bacterial morphogenesis and antimicrobial resistance, but its deletion increases OMV production and OMV-mediated host cell cytotoxicity. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-020-02083-0.
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Affiliation(s)
- Nayeong Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Hyo Jeong Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Man Hwan Oh
- Department of Nanobiomedical Science, Dankook University, Cheonan, South Korea
| | - Se Yeon Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Mi Hyun Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Joo Hee Son
- Department of Microbiology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Seung Il Kim
- Drug & Disease Target Team, Korea Basic Science Institute, Ochang, South Korea.,Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, South Korea
| | - Minsang Shin
- Department of Microbiology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Yoo Chul Lee
- Department of Microbiology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea
| | - Je Chul Lee
- Department of Microbiology, School of Medicine, Kyungpook National University, 680 Gukchaebosang-ro, Jung-gu, Daegu, 41944, Republic of Korea.
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22
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Lee BS, Chu SY, Jung WJ, Jeong HJ, Lee K, Kim MH, Kim MH, Chi DY, Ahn H, Lee YJ, Lee KC, Lim SM. 18 F-labeled 1,2,3-triazole-linked Glu-urea-Lys-based PSMA ligands have good pharmacokinetic properties for positron emission tomography imaging of prostate cancer. Prostate 2020; 80:1383-1393. [PMID: 32960990 DOI: 10.1002/pros.24062] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 07/23/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Prostate-specific membrane antigen (PSMA) is increasingly recognized as an excellent target for prostate cancer imaging and therapy. Finding compounds with a high target-to-nontarget ratio are an important challenge in the development of positron emission tomography (PET) imaging agents. In this study, we attempted to find a suitable compound from a simply-synthesized compound library. METHOD 18 F-labeling was achieved in a two-step synthesis consisting of [18 F]fluorination of azido sulfonates followed by copper(I)-catalyzed click ligation. In vitro binding experiment and in vivo studies were carried out using isogenic PSMA+ PC3-PIP and PSMA- PC3-flu cells and 22RV1 cells. [125 I]MIP-1095 was used to measure the binding affinities of compounds through a competitive binding assay, and [18 F]DCFPyL was used for a comparative assessment of compounds. Radiation dosimetry data were obtained using OLINDA/EXM software. RESULTS Nine novel PSMA ligands were synthesized by the combination of three azido compounds and three terminal acetylene-containing Glu-urea-Lys compounds. Among them, compound 6f having a pyridine moiety showed a high binding affinity of 6.51 ± 0.19 nM (Ki ). 18 F-labeled compounds were obtained at moderate yields within 70 to 75 minutes (including high-performance liquid chromatography purification). Compound [18 F]6c had the lowest log P of -2.693. MicroPET/computed tomography (CT) images were acquired from 22RV1 cell xenograft mice after injecting [18 F]6c, [18 F]6f, and [18 F]6i. Additional microPET/CT experiments of [18 F]6c and [18 F]6f were performed using PSMA+ PC3-PIP and PSMA- PC3-flu cell-bearing mice. [18 F]6c was selected for further studies because it was found to have high uptake in tumors and rapid renal clearance, resulting in great tumor-to-nontumor ratios and distinct tumor images with very low background activity. Human dosimetry estimation of [18 F]6c using OLINDA/EXM software was calculated, resulting in an effective dose of 4.35 × 10-3 mSv/MBq. CONCLUSIONS [18 F]6c showed significant tumor uptake, a high tumor-to-nontumor ratio, and good radiation dosimetry results, suggesting further development as a potential diagnostic PET agent for prostate cancer.
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Affiliation(s)
- Byoung Se Lee
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - So Young Chu
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Woon Jung Jung
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Hyeon Jin Jeong
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Kyongkyu Lee
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Min Hwan Kim
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Mi Hyun Kim
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
| | - Dae Yoon Chi
- Research Institute of Labeling, FutureChem Co., Ltd., Seoul, Republic of Korea
- Department of Chemistry, Sogang University, Seoul, Republic of Korea
| | - Heesu Ahn
- Division of Applied RI, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Yong Jin Lee
- Division of Applied RI, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Kyo Chul Lee
- Division of Applied RI, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Sang Moo Lim
- Department of Nuclear Medicine, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
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Mechesso AF, Kim SJ, Park HS, Choi JH, Song HJ, Kim MH, Lim SK, Yoon SS, Moon DC. Short communication: First detection of Panton-Valentine leukocidin-positive methicillin-resistant Staphylococcus aureus ST30 in raw milk taken from dairy cows with mastitis in South Korea. J Dairy Sci 2020; 104:969-976. [PMID: 33162097 DOI: 10.3168/jds.2020-19004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/21/2020] [Indexed: 02/02/2023]
Abstract
We identified 199 Staphylococcus aureus isolates from quarter milk samples of 1,289 dairy cattle between 2014 and 2018. About 66% of the isolates were resistant to at least 1 antimicrobial agent; the highest rate of resistance was to penicillin, followed by resistance to ampicillin, erythromycin, and sulfadimethoxine. We obtained 30 methicillin-resistant S. aureus (MRSA) strains from 6 farms in 3 provinces. The MRSA strains exhibited a significantly higher resistance rate to most of the tested antimicrobials than the oxacillin-susceptible strains. The MRSA strains represented 5 genotypes: ST72-t324-SCCmec IV (n = 14), ST30-t1752-SCCmec IV (n = 8), ST188-t189-SCCmec NT (n = 6), ST188-t2284-SCCmec NT (n = 1), and NT-NT-SCCmec IV (n = 1). One of the ST188 MRSA strains represented a novel staphylococcal protein A (spa) type (t2284). In addition, 7 of the 8 ST30 MRSA strains were Panton-Valentine leukocidin (PVL)-positive and carried various staphylococcal enterotoxin encoding genes. This is the first report of PVL-positive ST30 MRSA-t1752-SCCmec IV from bovine mastitis in Korea. All of ST72-t324-SCCmec IV MRSA strains carried staphylococcal enterotoxin and leukotoxin encoding genes. They were also sensitive to most of the tested non-β-lactam antimicrobials. In contrast, ST188-t189 MRSA strains were resistant to multiple antimicrobials and predominantly carried the leukotoxin encoding gene. Taken together, these findings may indicate that dairy cows could be a major source for spreading MRSA strains, and contaminated milk could be a vehicle for transmission. Suitable hygienic measures should be established in dairy farms and processing plants to limit the likelihood of introducing MRSA into the food chain.
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Affiliation(s)
- Abraham Fikru Mechesso
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Republic of Korea
| | - Su-Jeong Kim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Republic of Korea
| | - Ho-Sung Park
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Republic of Korea
| | - Ji-Hyun Choi
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Republic of Korea
| | - Hyun-Ju Song
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Republic of Korea
| | - Mi Hyun Kim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Republic of Korea
| | - Suk-Kyung Lim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Republic of Korea
| | - Soon-Seek Yoon
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Republic of Korea
| | - Dong-Chan Moon
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Republic of Korea.
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Kang HY, Moon DC, Mechesso AF, Choi JH, Kim SJ, Song HJ, Kim MH, Yoon SS, Lim SK. Emergence of cfr-Mediated Linezolid Resistance in Staphylococcus aureus Isolated from Pig Carcasses. Antibiotics (Basel) 2020; 9:E769. [PMID: 33147717 PMCID: PMC7692708 DOI: 10.3390/antibiotics9110769] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/28/2020] [Accepted: 10/30/2020] [Indexed: 12/20/2022] Open
Abstract
Altogether, 2547 Staphylococcus aureus isolated from cattle (n = 382), pig (n = 1077), and chicken carcasses (n = 1088) during 2010-2017 were investigated for linezolid resistance and were further characterized using molecular methods. We identified linezolid resistance in only 2.3% of pig carcass isolates. The linezolid-resistant (LR) isolates presented resistance to multiple antimicrobials, including chloramphenicol, clindamycin, and tiamulin. Molecular investigation exhibited no mutations in the 23S ribosomal RNA. Nevertheless, we found mutations in ribosomal proteins rplC (G121A) and rplD (C353T) in one and seven LR strains, respectively. All the LR isolates carried the multi-resistance gene cfr, and six of them co-carried the mecA gene. Additionally, all the LR isolates co-carried the phenicol exporter gene, fexA, and presented a high level of chloramphenicol resistance. LR S. aureus isolates represented 10 genotypes, including major genotypes ST433-t318, ST541-t034, ST5-t002, and ST9-t337. Staphylococcal enterotoxin and leukotoxin-encoding genes, alone or in combination, were detected in 68% of LR isolates. Isolates from different farms presented identical or different pulsed-field gel electrophoresis patterns. Collectively, toxigenic and LR S. aureus strains pose a crisis for public health. This study is the first to describe the mechanism of linezolid resistance in S. aureus isolated from food animal products in Korea.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Suk-Kyung Lim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Korea; (H.Y.K.); (D.C.M.); (A.F.M.); (J.-H.C.); (S.-J.K.); (H.-J.S.); (M.H.K.); (S.-S.Y.)
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25
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Moon DC, Mechesso AF, Kang HY, Kim SJ, Choi JH, Kim MH, Song HJ, Yoon SS, Lim SK. First Report of an Escherichia coli Strain Carrying the Colistin Resistance Determinant mcr-1 from a Dog in South Korea. Antibiotics (Basel) 2020; 9:E768. [PMID: 33147688 PMCID: PMC7694106 DOI: 10.3390/antibiotics9110768] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/30/2020] [Accepted: 10/31/2020] [Indexed: 01/02/2023] Open
Abstract
We studied the presence of the mobile colistin resistance gene mcr-1 in Escherichia coli isolates recovered from fecal and urine samples of companion animals, that were collected from South Korea in 2018 and 2019. The mcr-1 gene was detected in one colistin-resistant E. coli isolated from a diarrheic dog. The isolate exhibited additional resistance to multiple antimicrobials, including fluoroquinolones and third-generation cephalosporins. The mcr-1 carrying isolate belonged to ST160. The pulsed-field gel electrophoresis pattern of our strain differed from those ST160 E. coli strains previously identified from chickens in Korea. The mcr-1 gene was identified in the IncI2 plasmid. It was also transferred to E. coli J53 recipient strain, with a conjugation efficiency of 2.8 × 10-4. Average nucleotide identity analysis demonstrated that the mcr-1-carrying plasmid in this study was closely related to those from patients in Korea. To the best of our knowledge, this is the first report of mcr-1 carrying E. coli from a companion animal in South Korea. Our findings support One Health approach is necessary to prevent the dissemination of this high-risk gene.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Suk-Kyung Lim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Korea; (D.C.M.); (A.F.M.); (H.Y.K.); (S.-J.K.); (J.-H.C.); (M.H.K.); (H.-J.S.); (S.-S.Y.)
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26
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Song HJ, Moon DC, Mechesso AF, Kang HY, Kim MH, Choi JH, Kim SJ, Yoon SS, Lim SK. Resistance Profiling and Molecular Characterization of Extended-Spectrum/Plasmid-Mediated AmpC β-Lactamase-Producing Escherichia coli Isolated from Healthy Broiler Chickens in South Korea. Microorganisms 2020; 8:E1434. [PMID: 32962074 PMCID: PMC7564670 DOI: 10.3390/microorganisms8091434] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/16/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022] Open
Abstract
We aimed to identify and characterize extended-spectrum β-lactamase (ESBL)-and/or plasmid-mediated AmpC β-lactamase (pAmpC)-producing Escherichia coli isolated from healthy broiler chickens slaughtered for human consumption in Korea. A total of 332 E. coli isolates were identified from 339 cloacal swabs in 2019. More than 90% of the isolates were resistant to multiple antimicrobials. ESBL/pAmpC-production was noted in 14% (46/332) of the isolates. Six of the CTX-M-β-lactamase-producing isolates were found to co-harbor at least one plasmid-mediated quinolone resistance gene. We observed the co-existence of blaCMY-2 and mcr-1 genes in the same isolate for the first time in Korea. Phylogenetic analysis demonstrated that the majority of blaCMY-2-carrying isolates belonged to subgroup D. Conjugation confirmed the transferability of blaCTX-M and blaCMY-2 genes, as well as non-β-lactam resistance traits from 60.9% (28/46) of the ESBL/pAmpC-producing isolates to a recipient E. coli J53. The ISECP, IS903, and orf477 elements were detected in the upstream or downstream regions. The blaCTX-M and blaCMY-2 genes mainly belonged to the IncI1, IncHI2, and/or IncFII plasmids. Additionally, the majority of ESBL/pAmpC-producing isolates exhibited heterogeneous PFGE profiles. This study showed that healthy chickens act as reservoirs of ESBL/pAmpC-producing E. coli that can potentially be transmitted to humans.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Suk-Kyung Lim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, 177 Hyeksin 8-ro, Gimcheon-si, Gyeongsangbuk-do 39660, Korea; (H.-J.S.); (D.C.M.); (A.F.M.); (H.Y.K.); (M.H.K.); (J.-H.C.); (S.-J.K.); (S.-S.Y.)
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27
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Kim MH, Adriani O, Berti E, Bonechi L, D'Alessandro R, Goto Y, Hong B, Itow Y, Kasahara K, Lee JH, Ljubicic T, Makino Y, Menjo H, Nakagawa I, Ogawa A, Park JS, Sako T, Sakurai N, Sato K, Seidl R, Tanida K, Torii S, Tricomi A, Ueno M, Zhou QD. Transverse Single-Spin Asymmetry for Very Forward Neutral Pion Production in Polarized p+p Collisions at sqrt[s]=510 GeV. Phys Rev Lett 2020; 124:252501. [PMID: 32639790 DOI: 10.1103/physrevlett.124.252501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
Transverse single-spin asymmetries of very forward neutral pions generated in polarized p+p collisions allow us to understand the production mechanism in terms of perturbative and nonperturbative strong interactions. During 2017, the RHICf Collaboration installed an electromagnetic calorimeter in the zero-degree region of the STAR detector at the Relativistic Heavy Ion Collider (RHIC) and measured neutral pions produced at pseudorapidity larger than 6 in polarized p+p collisions at sqrt[s]=510 GeV. The large nonzero asymmetries increasing both in longitudinal momentum fraction x_{F} and transverse momentum p_{T} have been observed at low transverse momentum p_{T}<1 GeV/c for the first time, at this collision energy. The asymmetries show an approximate x_{F} scaling in the p_{T} region where nonperturbative processes are expected to dominate. A non-negligible contribution from soft processes may be necessary to explain the nonzero neutral pion asymmetries.
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Affiliation(s)
- M H Kim
- Korea University, Seoul 02841, Korea
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - O Adriani
- Department of Physics and Astronomy, University of Florence, Sesto Florentino (FI) I-50019, Italy
- INFN Section of Florence, Sesto Florentino (FI) I-50019, Italy
| | - E Berti
- Department of Physics and Astronomy, University of Florence, Sesto Florentino (FI) I-50019, Italy
- INFN Section of Florence, Sesto Florentino (FI) I-50019, Italy
| | - L Bonechi
- INFN Section of Florence, Sesto Florentino (FI) I-50019, Italy
| | - R D'Alessandro
- Department of Physics and Astronomy, University of Florence, Sesto Florentino (FI) I-50019, Italy
- INFN Section of Florence, Sesto Florentino (FI) I-50019, Italy
| | - Y Goto
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - B Hong
- Korea University, Seoul 02841, Korea
| | - Y Itow
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi 464-8601, Japan
- Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya University, Nagoya, Aichi 464-8602, Japan
| | - K Kasahara
- Shibaura Institue of Technology, 307 Fukasaku, Minuma-ku, Saitama 337-8570, Japan
| | - J H Lee
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - T Ljubicic
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - Y Makino
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - H Menjo
- Graduate school of Science, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - I Nakagawa
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - A Ogawa
- Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - J S Park
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
| | - T Sako
- Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan
| | - N Sakurai
- Tokushima University, Tokushima, Tokushima 770-8051, Japan
| | - K Sato
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - R Seidl
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, 21 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
| | - S Torii
- RISE, Waseda University, Shinjuku, Tokyo 162-0044, Japan
| | - A Tricomi
- Department of Physics and Astronomy, University of Catania, Catania I-95123, Italy
- INFN Section of Catania, Catania I-95123, Italy
| | - M Ueno
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi 464-8601, Japan
| | - Q D Zhou
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Aichi 464-8601, Japan
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Kim S, Kim MH, Oh JH, Jeong SY, Park KJ, Oh HK, Kim DW, Kang SB. Predictors of permanent stoma creation in patients with mid or low rectal cancer: results of a multicentre cohort study with preoperative evaluation of anal function. Colorectal Dis 2020; 22:399-407. [PMID: 31698537 DOI: 10.1111/codi.14898] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 10/08/2019] [Indexed: 12/24/2022]
Abstract
AIM Preoperative factors predictive of permanent stoma creation were investigated in a long-term follow-up of patients with mid or low rectal cancer. METHOD We included patients who underwent radical resection for mid or low rectal cancer with available data for preoperative anal function measured by manometry and Faecal Incontinence Severity Index questionnaire between January 2005 and December 2015 in three tertiary referral hospitals. A permanent stoma was defined as a stoma present until the patient's last follow-up visit or death. Preoperative factors that predicted permanent stoma creation were analysed. RESULTS Over a median follow-up of 57.4 months (range 12-143 months), a permanent stoma was created in 144/577 (25.0%) patients, including 89 (15.4%) who underwent abdominoperineal resection, one (0.2%) who underwent Hartmann's operation without reversal, 15 (2.6%) with a diverting ileostomy at the time of initial sphincter-preserving surgery without undergoing stoma reversal, and 39 (6.8%) who underwent permanent ileostomy formation after sphincter-preserving surgery. Patients with permanent stoma creation had a shorter tumour distance from the anal verge (P < 0.001), larger tumour size (P = 0.020) and higher preoperative Faecal Incontinence Severity Index score (P = 0.020). On multivariable analysis, tumour distance from the anal verge predicted permanent stoma formation (relative risk 0.53 per centimetre increase; 95% confidence interval 0.46-0.60; P < 0.001) but preoperative anal function did not. CONCLUSION Tumour distance from the anal verge was the only preoperative determinant of permanent stoma creation in rectal cancer patients. These data may help mid and low rectal cancer patients understand the need for permanent stoma.
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Affiliation(s)
- S Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Surgery, Armed Forces Capital Hospital, Seongnam, Korea
| | - M H Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - J H Oh
- Center for Colorectal Cancer, Research Institute and Hospital, National Cancer Center, Goyang, Korea
| | - S-Y Jeong
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - K J Park
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - H-K Oh
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - D-W Kim
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - S-B Kang
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
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Ho SL, Choi G, Yue H, Kim HK, Jung KH, Park JA, Kim MH, Lee YJ, Kim JY, Miao X, Ahmad MY, Marasini S, Ghazanfari A, Liu S, Chae KS, Chang Y, Lee GH. In vivo neutron capture therapy of cancer using ultrasmall gadolinium oxide nanoparticles with cancer-targeting ability. RSC Adv 2020; 10:865-874. [PMID: 35494457 PMCID: PMC9047061 DOI: 10.1039/c9ra08961f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 12/17/2019] [Indexed: 11/21/2022] Open
Abstract
Gadolinium neutron capture therapy (GdNCT) is considered as a new promising cancer therapeutic technique. Nevertheless, limited GdNCT applications have been reported so far. In this study, surface-modified ultrasmall gadolinium oxide nanoparticles (UGNPs) with cancer-targeting ability (davg = 1.8 nm) were for the first time applied to the in vivo GdNCT of cancer using nude model mice with cancer, primarily because each nanoparticle can deliver hundreds of Gd to the cancer site. For applications, the UGNPs were grafted with polyacrylic acid (PAA) for biocompatibility and colloidal stability, which was then conjugated with cancer-targeting arginylglycylaspartic acid (RGD) (shortly, RGD-PAA-UGNPs). The solution sample was intravenously administered into the tails of nude model mice with cancer. At the time of the maximum accumulation of the RGD-PAA-UGNPs at the cancer site, which was monitored using magnetic resonance imaging, the thermal neutron beam was locally irradiated onto the cancer site and the cancer growth was monitored for 25 days. The cancer growth suppression was observed due to the GdNCT effects of the RGD-PAA-UGNPs, indicating that the surface-modified UGNPs with cancer-targeting ability are potential materials applicable to the in vivo GdNCT of cancer. A cancer growth suppression was observed due to the GdNCT effects of the RGD-PAA-UGNPs.![]()
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Kim MH, Go CH, Lee JM, Kang JY, Lim JY. 53 The Development and Education of Fall Prevention Program Through the Multidisciplinary Approach. Age Ageing 2019. [DOI: 10.1093/ageing/afz164.53] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
To reduce the rate of falls in the rehabilitation ward, fall prevention program was developed and educated for physical and occupational therapists, which increased the attitude towards falls and knowledge towards fall prevention activities.
Method
Participants of this study include 17 therapists currently employed at a university-affiliated hospital located in Gyeongg-do, South Korea. Systematic protocol for fall prevention with the emphasis in the roles of rehabilitation teams was developed. This standardized protocol consists of educating therapists with adequate assistive device use, safe ambulation techniques, and client-centered transfer techniques. The therapists then record the paitent's status related to fall prevention and or risks, which is then shared with other medical professionals including registered nurses and medical doctors. Paper-based questionnaires regarding 9 questions on attitude towards falls and 12 questions on knowledge towards fall prevention activities were done by the participants after the education of systematic protocol. The rate of falls was then compared with the change of attitudes in participants. Rate of falls was calculated by dividing the number of fall by the patient bed days and multiplying by 1000.
Result
After the education of fall prevention program, the mean score of attitude towards falls significantly increased (t=-3.99, p=0.001). The mean score of knowledge towards fall prevention activities significantly increased (t=-4.79, p<0.001). The rate of falls decreased from 4.2 to 1.4. The effectiveness of systematic protocol regarding therapists' change in attitude and the resulting change in rate of falls was mainly seen in patients' ward. The decline in rate of falls was observed when patients transferred from bed to wheelchair.
Conclusion
In order to effectively convey the fall prevention education program, the multidisciplinary approach showed promising results in this study. Implications for future research include translation of this program to the community, such as long term care facility.
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Affiliation(s)
- Mi Hyun Kim
- Rehabilitation Medicine, Occupational Therapist, Seoul National University Bundang Hospital, South Korea
| | - Chang Hee Go
- Rehabilitation Medicine, Physical Therapist, Seoul National University Bundang Hospital, South Korea
| | - Jung Min Lee
- Rehabilitation Medicine, Physical Therapist, Seoul National University Bundang Hospital, South Korea
| | - Ji-Young Kang
- Rehabilitation Medicine, Registered Nurse, Seoul National University Bundang Hospital, South Korea
| | - Jae-Young Lim
- Rehabilitation Medicine, Medical Doctor, Seoul National University Bundang Hospital, South Korea
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Kim S, Woo JH, Kim N, Kim MH, Kim SY, Son JH, Moon DC, Lim SK, Shin M, Lee JC. Characterization Of Chromosome-Mediated Colistin Resistance In Escherichia coli Isolates From Livestock In Korea. Infect Drug Resist 2019; 12:3291-3299. [PMID: 31695448 PMCID: PMC6815941 DOI: 10.2147/idr.s225383] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 09/25/2019] [Indexed: 02/06/2023] Open
Abstract
Purpose Colistin resistance in gram-negative bacteria from humans and livestock has been increasingly reported worldwide. The aim of this study was to investigate the underlying mechanisms of chromosome-mediated colistin resistance in Escherichia coli isolates from livestock in Korea. Materials and methods Thirty mcr-1-negative isolates were selected from a collection of colistin-resistant E. coli isolates collected from livestock in 2005 and 2015 in Korea. Amino acid alterations in PmrAB, PhoPQ, MgrB, and PmrD were investigated. Colistin-resistant derivatives were produced by serial passage of colistin-susceptible E. coli isolates in colistin-containing media. Results Thirty colistin-resistant mcr-negative E. coli isolates were classified into 26 sequence types. Twenty-two isolates carried diverse amino acid alterations in PmrB, PhoP, PhoQ, MgrB, and/or PmrD, whereas no mutation in any of these genes was found in the remaining eight isolates. Sixteen out of the 22 isolates shared a total of nine polymorphic positions that were found in colistin-susceptible E. coli strains. Colistin-resistant derivatives from two colistin-susceptible isolates showed the same genetic alterations that were observed in colistin-resistant clinical isolates. Conclusion Our results suggest that the mechanism underlying chromosome-mediated colistin resistance remain to be discovered in E. coli. Selective pressure of colistin in vitro induced the same genetic mutations associated with colistin resistance in vivo. Efforts to reduce colistin consumption in livestock should be redoubled, to prevent the occurrence of colistin-resistant E. coli strains.
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Affiliation(s)
- Shukho Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jung Hwa Woo
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Nayeong Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Mi Hyun Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Se Yeon Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Joo Hee Son
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Dong Chan Moon
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Republic of Korea
| | - Suk-Kyung Lim
- Bacterial Disease Division, Animal and Plant Quarantine Agency, Gimcheon-si, Gyeongsangbuk-do, Republic of Korea
| | - Minsang Shin
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Je Chul Lee
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
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Choi SY, Kim MH, Lee KM, Jang CH, Choi JY. P4791Performance of the HAS-BLED, ATRIA, and PRECISE-DAPT Bleeding Risk Scores in Atrial Fibrillation Patients Using Antiplatelet Agents or Oral Anticoagulants. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Various bleeding risk scores have been proposed to assess the risk of bleeding in atrial fibrillation (AF) patients undergoing anticoagulation. PRECISE DAPT score has been developed to assess the out-of hospital bleeding risk in patients receiving dual antiplatelet therapy (DAPT). Our objective was to compare the predictive performance between the HAS-BLED (Hypertension, Abnormal Renal/Liver Function, Stroke, Bleeding History or Predisposition, Labile International Normalized Ratio, Elderly, Drugs/Alcohol), ATRIA (Anticoagulation and Risk Factors in Atrial Fibrillation), and PRECISE-DAPT (Predicting Bleeding Complication in Patients Undergoing Stent Implantation and Subsequent Dual Antiplatelet therapy) score in AF patients using antiplatelet agents or anticoagulants
Methods
We recruited 1,114 consecutive AF patients (51% male; median age, 71 years) receiving antiplatelet agents or oral anticoagulants from January 2014 through December 2018. Major bleeding was defined as according to the Bleeding Academic Research Consortium (BARC) criteria (type 3 or 5: hemodynamic instability, need for transfusion, drop in hemoglobin ≥3 g, and intracranial, intraocular or fatal bleeding). The performance of risk scores were assessed by C-statistic.
Results
Bleeding events occurred in 135 patients (12.1%) during 30 days, and 72 patients (6.5%) from 30 days till 1-year follow-up. Based on the C-statistic, PRECISE-DAPT score (AUC: 0.72, 95% CI: 0.69–0.75) had a good performance, significantly better than HAS-BLED (AUC: 0.64, 95% CI: 0.61–0.67) (p=0.008) or ATRIA scores (AUC: 0.57, 95% CI: 0.54–0.60) (p<0.001) for 30-days bleeding prediction. Also, PRECISE-DAPT score had a good C-statistic (AUC: 0.72, 95% CI: 0.69–0.75) for 1-year bleeding events compared with HAS-BLED (AUC: 0.64, 95% CI: 0.60–0.67) (p=0.02) or ATRIA (AUC: 0.61, 95% CI: 0.58–0.65) (p=0.01).
ROC curve for bleeding
Conclusions
The PRECISE-DAPT score has been used for assessing bleeding events during DAPT. Also, the PRECISE-DAPT score predicted bleedings better than HAS-BLED or ATRIA scores in AF patients. So, the PRECISE-DAPT score may be considered as bleeding risk score during DAPT or oral anticoagulation in clinical practice.
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Affiliation(s)
- S Y Choi
- Daeu Health College, Department of Biomedical Laboratory Science, Daegu, Korea (Republic of)
| | - M H Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - K M Lee
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - C H Jang
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - J Y Choi
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
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Lee KM, Kim MH, Choi SY, Kim SJ, Kim SW, Park JS. P4776Age-dependent anti-thrombotic therapy for atrial fibrillation patients with intermediate risk (CHA2DS2-VASc Score of 1 or 2) of ischemic stroke. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.1152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Although older age is one of the most important risk factor for stroke in atrial fibrillation (AF), it is unclear whether oral anticoagulants are beneficial for AF patients with intermediate CHA2DS2-VASc score (1 for male or 2 for female) according to age threshold. We sought to investigate the effect of age-dependent antithrombotic therapy for ischemic stroke in Korean intermediate risk AF patients.
Methods
We enrolled 29,592 patients (males with CHA2DS2-VASc score of 1 and females with CHA2DS2-VASc score of 2) using the Korean National Health Insurance Service database. The clinical endpoint was the occurrence of ischemic stroke. The propensity score matching method was used to balance covariates across treated and untreated patients.
Results
Treated male AF patients were 6,570 (67.1%) with age <55 years, 7,115 (70.9%) with 55–64 years and 6,470 (68.3%) with 65–74 years in each age risk criterion. Also, treated female AF patients were 3,156 (71.3%) with age <55 years, 2,838 (71.0%) with 55–64 years and 3,440 (72.6%) with 65–74 years in each age risk criterion. Among male and female patients (age <55 years and 55–64 years) with 1 risk factor, an annual ischemic stroke rate was not significantly different between treated and untreated patients at full follow-up. However, treated AF patients who are in age 65–74 year without other risk factor had a much lower annual risk of ischemic stroke [(1.05%/year (male) and 1.04%/year (female)] compared with untreated patients [(1.77%/year (male) (p<0.026) and 1.86%/year (female) (p<0.041).
Conclusions
Age is an important predictor in determining the risk of ischemic stroke in AF patients with intermediate CHA2DS2-VASc scores (1 for male or 2 for female). We suggest that the benefit of anti-thrombotic therapy for intermediate risk AF patients depends on age threshold.
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Affiliation(s)
- K M Lee
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - M H Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - S Y Choi
- Daeu Health College, Department of Biomedical Laboratory Science, Daegu, Korea (Republic of)
| | - S J Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - S W Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - J S Park
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
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Choi SY, Kim MH, Lee KM, Kim JK, Woo JY, Cho YR. P5661Validation of CHA2DS2-VA score (excluding female sex) in non-valvular atrial fibrillation patients: a nationwide population-based study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Sex category (Sc, ie, female sex) confers 1 point on CHA2DS2-VASc score. So, no woman with atrial fibrillation (AF) can have a CHA2DS2-VASc score of 0. This study aimed to compare CHA2DS2-VA (excluding female sex) and CHA2DS2-VASc score in Korean AF patients.
Methods
Using the Korean National Health Insurance Service database, we analyzed the risk of ischemic stroke in non-valvular AF patients between 2013 and 2017. The predictive value of the CHA2DS2-VA and CHA2DS2-VASc scores for ischemic stroke was evaluated by c-statistic difference and net reclassification improvement (NRI). The propensity score matching method was used to balance covariates across male and female AF patients.
Results
A total of 182,133 patients with AF (49.2% women) were included to this study. The adjusted incidence rate (IR) of ischemic stroke was not significantly different between males and females (0.89%/y and 0.90%/y, respectively, p=0.411) in low-risk patients without risk factor. Also, no sex difference was found in high-risk patients with above 2 risk factors for ischemic stroke (4.46%/y for male and 4.49%/y for male, p=0.498). In c-statistic analysis for ischemic stroke, there was no significant difference between the CHA2DS2-VA and CHA2DS2-VASc scores (AUC 0.662 vs. 0.664, z=1.572, p=0.116). When compared with CHA2DS2-VASc score, CHA2DS2-VA score was not significantly inferior in net reclassification improvement (NRI 0.031, 95% CI 0.002–0.037, p=0.118) for ischemic stroke.
C-statistics
Conclusions
In Korean AF patients, the CHA2DS2-VA score excluding female sex is a useful risk scoring system for ischemic stroke.
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Affiliation(s)
- S Y Choi
- Daeu Health College, Department of Biomedical Laboratory Science, Daegu, Korea (Republic of)
| | - M H Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - K M Lee
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - J K Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - J Y Woo
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
| | - Y R Cho
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea (Republic of)
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Jeong JW, Kim MJ, Oh HK, Jeong S, Kim MH, Cho JR, Kim DW, Kang SB. The impact of social media on citation rates in coloproctology. Colorectal Dis 2019; 21:1175-1182. [PMID: 31124259 DOI: 10.1111/codi.14719] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 04/24/2019] [Indexed: 02/08/2023]
Abstract
AIM This study aimed to investigate the association between Twitter exposure and the number of citations for coloproctology articles. METHOD Original articles from journals using Twitter between June 2015 and May 2016 were evaluated for the following characteristics: publishing journal; article subject; study design; nationality, speciality and affiliation of the author(s); and reference on Twitter. Citation data for these articles were retrieved from Google Scholar (https://scholar.google.com) in January 2018. We performed a univariate analysis using these data followed by a multivariate, logistic regression analysis to search for factors associated with a high citation level, which was defined as accrual of more than five citations. RESULTS Out of six coloproctology journals listed on the InCites JCR database, three (Diseases of the Colon & Rectum, Colorectal Disease and Techniques in Coloproctology) used Twitter, where 200 (49.5%) out of a total of 404 articles had been featured. Citation rates of articles that featured on Twitter were significantly higher than those that did not (11.4 ± 9.2 vs 4.1 ± 3.1, P < 0.001). In multivariate analysis, Twitter exposure (OR 8.6, P = 0.001), European Union nationality (OR 2.4, P = 0.004), Colorectal Disease journal (OR 3.3, P = 0.005) and systematic review articles (OR 3.4, P = 0.009) were associated with higher citation levels. CONCLUSION Article exposure on Twitter was strongly associated with a high citation level. Medical communities should encourage journals as well as physicians to actively utilize social media to expedite the spread of new ideas and ultimately benefit medical society as a whole.
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Affiliation(s)
- J W Jeong
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - M J Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - H-K Oh
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - S Jeong
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - M H Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - J R Cho
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
| | - D-W Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam, Korea
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Simon KR, Hartig M, Abrams EJ, Wetzel E, Ahmed S, Chester E, Chembezi C, Chavula B, Zinkanda S, Kavuta E, Chikoti C, Beyene T, Nkhono Z, Kabwinja A, Nyirenda R, Kazembe PN, Kim MH. The Tingathe Surge: a multi-strategy approach to accelerate HIV case finding in Malawi. Public Health Action 2019; 9:128-134. [PMID: 31803585 DOI: 10.5588/pha.18.0099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 02/20/2019] [Indexed: 11/10/2022] Open
Abstract
Setting Nineteen health facilities in rural, southeastern Malawi. Objective To describe the implementation and results of a 6-week intervention to accelerate human immunodeficiency virus (HIV) case finding. Design Six HIV testing strategies were simultaneously implemented. Routinely collected data from Ministry of Health registers were used to determine the number of HIV tests performed and of new cases identified. The weekly averages of the total number of tests and new cases before and during the intervention were compared. Testing by age group and sex was described. The percentage yield of new cases was compared by testing strategy. Results Of 29 703 HIV tests conducted, 1106 (3.7%) were positive. Of the total number of persons tested, 69.5% were women and 75.5% were aged >15 years. The yield of positive test results was 3.5% among women, 4.3% among men, 4.4% among those aged >15 years and 1.5% among those aged ⩽15 years. The average weekly number of tests increased 106.7% from 3337 to 6896 (P = 0.002). The average weekly number of positive cases identified increased 51.9% from 158 to 240 (P = 0.017). The testing strategy with the highest yield resulted in a 6.0% yield; the lowest was 1.3%. The yield for all strategies, except one, was highest in adult men. Conclusion A multi-strategy approach to HIV testing and counseling can be an effective means of accelerating HIV case finding.
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Affiliation(s)
- K R Simon
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi.,Baylor College of Medicine International Pediatric AIDS Initiative, Houston, TX, USA
| | - M Hartig
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi
| | - E J Abrams
- ICAP at Columbia University, Mailman School of Public Health, and Vagelos College of Physicians & Surgeons, Columbia University, New York, NY, USA
| | - E Wetzel
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi.,Baylor College of Medicine International Pediatric AIDS Initiative, Houston, TX, USA
| | - S Ahmed
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi.,Baylor College of Medicine International Pediatric AIDS Initiative, Houston, TX, USA
| | - E Chester
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi.,Baylor College of Medicine International Pediatric AIDS Initiative, Houston, TX, USA
| | - C Chembezi
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi
| | - B Chavula
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi
| | - S Zinkanda
- Malawi Ministry of Health, Lilongwe, Malawi
| | - E Kavuta
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi
| | - C Chikoti
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi
| | - T Beyene
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi.,Baylor College of Medicine International Pediatric AIDS Initiative, Houston, TX, USA
| | - Z Nkhono
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi
| | - A Kabwinja
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi
| | - R Nyirenda
- Malawi Ministry of Health, Lilongwe, Malawi
| | - P N Kazembe
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi.,Baylor College of Medicine International Pediatric AIDS Initiative, Houston, TX, USA
| | - M H Kim
- Baylor College of Medicine Children's Foundation Malawi, Lilongwe, Malawi.,Baylor College of Medicine International Pediatric AIDS Initiative, Houston, TX, USA
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Kim MH, Kim SY, Son JH, Kim SI, Lee H, Kim S, Shin M, Lee JC. Production of Membrane Vesicles by Enterococcus faecium Cultured With or Without Subinhibitory Concentrations of Antibiotics and Their Pathological Effects on Epithelial Cells. Front Cell Infect Microbiol 2019; 9:295. [PMID: 31475120 PMCID: PMC6702262 DOI: 10.3389/fcimb.2019.00295] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/30/2019] [Indexed: 12/25/2022] Open
Abstract
Enterococcus faecium is a clinically important pathogen associated with opportunistic infection and multi-drug resistance. E. faecium has been shown to produce membrane vesicles (MVs), but MV production by E. faecium under antibiotic stress conditions and the pathogenic traits thereof have yet to be determined. This study investigated the production of MVs in E. faecium ATCC 700221 cultured with sub-minimum inhibitory concentrations (MICs) of vancomycin or linezolid and determined their pathologic effects on colon epithelial Caco-2 cells. E. faecium ATCC 700221 cultured with 1/2 MIC of vancomycin or linezolid produced 3.0 and 1.5 times more MV proteins than bacteria cultured without antibiotics, respectively. Totals of 438, 461, and 513 proteins were identified in MVs from E. faecium cultured in brain heart infusion broth (MVs/BHI), BHI broth with 1/2 MIC of vancomycin (MVs/VAN), or BHI broth with 1/2 MIC of linezolid (MVs/LIN), respectively. Intact MVs/BHI induced cytotoxicity and the expression of pro-inflammatory cytokine and chemokine genes in Caco-2 cells in a dose-dependent manner, but proteinase K-treated MVs significantly suppressed these pro-inflammatory responses. MVs/LIN were more cytotoxic toward Caco-2 cells than MVs/BHI and MVs/VAN, whereas MVs/VAN stimulated more pro-inflammatory cytokine gene expression in Caco-2 cells than MVs/BHI and MVs/LIN. Overall results indicated that antibiotics modulate the biogenesis and proteomes of MVs in E. faecium at subinhibitory concentrations. MVs produced by E. faecium cultured under antibiotic stress conditions induce strong host cell responses that may contribute to the pathogenesis E. faecium.
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Affiliation(s)
- Mi Hyun Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Se Yeon Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Joo Hee Son
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Seung Il Kim
- Drug and Disease Target Team, Korea Basic Science Institute, Ochang, South Korea.,Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, South Korea
| | - Hayoung Lee
- Drug and Disease Target Team, Korea Basic Science Institute, Ochang, South Korea.,Department of Bio-Analytical Science, University of Science and Technology (UST), Daejeon, South Korea
| | - Shukho Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Minsang Shin
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Je Chul Lee
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
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38
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Lee KM, Lee G, Kim A, Mok J, Lee JW, Jeong YJ, Jo EJ, Kim MH, Lee K, Kim KU, Park HK, Lee MK, Eom JS. Clinical outcomes of radial probe endobronchial ultrasound using a guide sheath for diagnosis of peripheral lung lesions in patients with pulmonary emphysema. Respir Res 2019; 20:177. [PMID: 31387600 PMCID: PMC6683511 DOI: 10.1186/s12931-019-1149-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/31/2019] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Generally, structural destruction of lung parenchyma, such as pulmonary emphysema, is considered to be related to the low diagnostic yields and high complication rates of lung biopsies of peripheral lung lesions. Currently, little is known about the clinical outcomes of using endobronchial ultrasound with a guide sheath (EBUS-GS) to diagnose peripheral lesions in patients with emphysema. METHODS This retrospective study was performed to identify the clinical outcomes of EBUS-GS in patients with pulmonary emphysema. This study included 393 consecutive patients who received EBUS-GS between February 2017 and April 2018. The patients were classified according to the severity of their emphysema, and factors possibly contributing to a successful EBUS-GS procedure were evaluated. RESULTS The overall diagnostic yield of EBUS-GS in patients with no or mild emphysema was significantly higher than in those with moderate or severe pulmonary emphysema (78% vs. 61%, P = 0.007). There were no procedure-related complications. The presence of a bronchus sign on CT (P < 0.001) and a "within the lesion" status on EBUS (P = 0.009) were independently associated with a successful EBUS-GS procedure. Although the diagnostic yield of EBUS-GS in patients with moderate-to-severe emphysema was relatively low, a bronchus sign and "within the lesion" status on EBUS were contributing factors for a successful EBUS-GS. CONCLUSIONS EBUS-GS is a safe procedure with an acceptable diagnostic yield, even when performed in patients with pulmonary emphysema. The presence of a bronchus sign and "within the lesion" status on EBUS were predictors of a successful procedure.
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Affiliation(s)
- Kyu Min Lee
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, Korea
| | - Geewon Lee
- Department of Radiology, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Ahreum Kim
- Biostatistics Team of Regional Center for Respiratory Diseases, Pusan National University Hospital, Busan, Republic of Korea
| | - Jeongha Mok
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, Korea
| | - Ji Won Lee
- Department of Radiology, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Yeon Joo Jeong
- Department of Radiology, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Eun-Jung Jo
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, Korea
| | - Mi Hyun Kim
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, Korea
| | - Kwangha Lee
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, Korea
| | - Ki Uk Kim
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, Korea
| | - Hye-Kyung Park
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, Korea
| | - Min Ki Lee
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, Korea
| | - Jung Seop Eom
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, Korea. .,Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea.
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39
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Roh J, Jo EJ, Eom JS, Mok J, Kim MH, Kim KU, Park HK, Lee MK, Yeom S, Lee K. Factors predicting long-term survival of patients with sepsis on arrival at the emergency department: A single-center, observational study. Medicine (Baltimore) 2019; 98:e16871. [PMID: 31415425 PMCID: PMC6831115 DOI: 10.1097/md.0000000000016871] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Predicting long-term outcomes after sepsis is important when caring for patients with this condition. The purpose of the present study was to develop models predicting long-term mortality of patients with sepsis, including septic shock.Retrospective data from 446 patients with sepsis (60.8% men; median age, 71 years) treated at a single university-affiliated tertiary care hospital over 3 years were reviewed. Binary logistic regression was used to identify factors predicting mortality at 180 and 365 days after arrival at the emergency department. Long-term prognosis scores for the 180- and 365-day models were calculated by assigning points to variables according to their β coefficients.The 180- and 365-day mortality rates were 40.6% and 47.8%, respectively. Multivariate analysis identified the following factors for inclusion in the 180- and 365-day models: age ≥65 years, body mass index ≤18.5 kg/m, hemato-oncologic diseases as comorbidities, and ventilator care. Patients with scores of 0 to ≥3 had 180-day survival rates of 83.8%, 70.8%, 42.3%, and 25.0%, respectively, and 365-day survival rates of 72.1%, 64.6%, 36.2%, and 15.9%, respectively (all differences P < .001; log-rank test). The areas under the receiver operating characteristic curves of the 180- and 365-day models were 0.713 (95% confidence interval [CI] 0.668-0.756, P < .001) and 0.697 (95% CI 0.650-0.740, P < .001), respectively.These long-term prognosis models based on baseline patient characteristics and treatments are useful for predicting the 6- and 12-month mortality rates of patients with sepsis.
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Affiliation(s)
- Jiyeon Roh
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine
| | - Eun-Jung Jo
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine
| | - Jung Seop Eom
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine
| | - Jeongha Mok
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine
| | - Mi Hyun Kim
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine
| | - Ki Uk Kim
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine
| | - Hye-Kyung Park
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine
| | - Min Ki Lee
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine
| | - Seokran Yeom
- Department of Emergency Medicine, Pusan National University School of Medicine, Busan, Republic of Korea
| | - Kwangha Lee
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Internal Medicine
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40
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Kwon HI, Jeong NH, Kim SY, Kim MH, Son JH, Jun SH, Kim S, Jeon H, Kang SC, Kim SH, Lee JC. Inhibitory effects of thymol on the cytotoxicity and inflammatory responses induced by Staphylococcus aureus extracellular vesicles in cultured keratinocytes. Microb Pathog 2019; 134:103603. [PMID: 31226290 DOI: 10.1016/j.micpath.2019.103603] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/15/2019] [Accepted: 06/17/2019] [Indexed: 12/08/2022]
Abstract
Staphylococcus aureus extracellular vesicles (EVs) deliver effector molecules to host cells and induce host cell pathology. This study investigated the disruption of S. aureus EVs by thymol along with its inhibitory effects on the cytotoxicity and inflammatory responses induced by EVs derived from two different S. aureus strains in cultured keratinocytes. Membrane disruption of the S. aureus EVs treated with thymol was determined using transmission electron microscopy. Human keratinocyte HaCaT cells were incubated with either intact or thymol-treated S. aureus EVs and then analyzed for cytotoxicity and pro-inflammatory cytokine gene expression. Thymol inhibited the growth of S. aureus strains and disrupted the membranes of the S. aureus EVs. The cytotoxicity and the expression levels of the pro-inflammatory cytokine genes towards HaCaT cells differed between the EVs derived from two S. aureus strains. Thymol-treated S. aureus EVs inhibited the cytotoxicity and the expression of the pro-inflammatory cytokine genes when compared to intact S. aureus EVs. Thymol-treated S. aureus EVs delivered lesser amounts of the EV component to host cells than intact EVs. Our results suggest that the thymol-induced disruption of the S. aureus EVs inhibits the delivery of effector molecules to host cells, resulting in the suppression of cytotoxicity and inflammatory responses in keratinocytes. Thymol may attenuate the host cell pathology induced by an S. aureus infection via both the antimicrobial activity against the bacteria and the disruption of the secreted EVs.
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Affiliation(s)
- Hyo Il Kwon
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Na Hee Jeong
- CMRI, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Se Yeon Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Mi Hyun Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Joo Hee Son
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - So Hyun Jun
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Shukho Kim
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Hyejin Jeon
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyungbuk, South Korea
| | - Sang Hyun Kim
- CMRI, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, South Korea.
| | - Je Chul Lee
- Department of Microbiology, School of Medicine, Kyungpook National University, Daegu, South Korea.
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41
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Yoon CG, Kang DY, Jung J, Oh SY, Lee JB, Kim MH, Seo Y, Kim HJ. The Infectivity of Pulmonary Tuberculosis in Korean Army Units: Evidence from Outbreak Investigations. Tuberc Respir Dis (Seoul) 2019; 82:298-305. [PMID: 31172703 PMCID: PMC6778738 DOI: 10.4046/trd.2018.0077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 03/24/2019] [Accepted: 05/02/2019] [Indexed: 11/30/2022] Open
Abstract
Background Tuberculosis (TB) causes substantial health burden to the Korean military. This study aims to assess the impact of infectious TB cases on close and casual contacts in the Korean Army settings based on contact investigation data. Methods Six Army units with infectious TB cases from September 2012 to May 2013 were enrolled in the study. We analyzed the clinical data from close and casual contacts screened using the tuberculin skin test (TST) and QuantiFERON-TB Gold In-Tube to identify latent tuberculosis infection (LTBI) cases. For the control group, 286 military conscripts with no reported TB exposure were tested by TST only. Results Of the 667 contacts of index cases, LTBI cases identified were as follows: 21.8% of close contacts of smear-positive cases (71/326), 8.5% of casual contacts of smear-positive cases (26/305), and 2.8% of close contacts of smear-negative cases (1/36). In the control group, 16.8% showed positivity in TST. In a multivariate analysis, having stayed in the same room or next room with TB patients was identified as a risk factor of LTBI. Conclusion Using the data from TB contact investigations in the Korean Army units, we found an overall LTBI rate of 14.7% among the contacts screened. This study demonstrates that contacts living in the same building, especially the same room or next room, with TB patients are at a high risk of acquiring LTBI, serving as additional evidence for defining close and casual contacts of a TB patient with regard to Army barrack settings.
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Affiliation(s)
- Chang Gyo Yoon
- Department of Preventive Medicine, Armed Forces Medical Command, Seongnam, Korea.,Preventive Medicine Program, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Dong Yoon Kang
- International Peace Supporting Standby Force, Ministry of National Defense, Seoul, Korea.,Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.,Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea
| | - Jaehun Jung
- Department of Preventive Medicine, Armed Forces Medical Command, Seongnam, Korea.,Department of Preventive Medicine, Korea University College of Medicine, Seoul, Korea
| | - Soo Yon Oh
- Korean Institute of Tuberculosis, Seoul, Korea
| | | | - Mi Hyun Kim
- Korean Institute of Tuberculosis, Seoul, Korea
| | - Younsuk Seo
- Korean Institute of Tuberculosis, Seoul, Korea
| | - Hee Jin Kim
- Korean Institute of Tuberculosis, Seoul, Korea.
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42
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Adare A, Aidala C, Ajitanand NN, Akiba Y, Alfred M, Andrieux V, Aoki K, Apadula N, Asano H, Ayuso C, Azmoun B, Babintsev V, Bai M, Bandara NS, Bannier B, Barish KN, Bathe S, Bazilevsky A, Beaumier M, Beckman S, Belmont R, Berdnikov A, Berdnikov Y, Blau DS, Boer M, Bok JS, Boyle K, Brooks ML, Bryslawskyj J, Bumazhnov V, Butler C, Campbell S, Canoa Roman V, Cervantes R, Chen CH, Chi CY, Chiu M, Choi IJ, Choi JB, Chujo T, Citron Z, Connors M, Cronin N, Csanád M, Csörgő T, Danley TW, Datta A, Daugherity MS, David G, DeBlasio K, Dehmelt K, Denisov A, Deshpande A, Desmond EJ, Dion A, Diss PB, Dixit D, Do JH, Drees A, Drees KA, Dumancic M, Durham JM, Durum A, Elder T, Enokizono A, En'yo H, Esumi S, Fadem B, Fan W, Feege N, Fields DE, Finger M, Finger M, Fokin SL, Frantz JE, Franz A, Frawley AD, Fukuda Y, Gal C, Gallus P, Garg P, Ge H, Giordano F, Glenn A, Goto Y, Grau N, Greene SV, Grosse Perdekamp M, Gunji T, Guragain H, Hachiya T, Haggerty JS, Hahn KI, Hamagaki H, Hamilton HF, Han SY, Hanks J, Hasegawa S, Haseler TOS, Hashimoto K, He X, Hemmick TK, Hill JC, Hill K, Hodges A, Hollis RS, Homma K, Hong B, Hoshino T, Hotvedt N, Huang J, Huang S, Imai K, Imrek J, Inaba M, Iordanova A, Isenhower D, Ito Y, Ivanishchev D, Jacak BV, Jezghani M, Ji Z, Jia J, Jiang X, Johnson BM, Jorjadze V, Jouan D, Jumper DS, Kanda S, Kang JH, Kapukchyan D, Karthas S, Kawall D, Kazantsev AV, Key JA, Khachatryan V, Khanzadeev A, Kim C, Kim DJ, Kim EJ, Kim GW, Kim M, Kim MH, Kimelman B, Kincses D, Kistenev E, Kitamura R, Klatsky J, Kleinjan D, Kline P, Koblesky T, Komkov B, Kotov D, Kudo S, Kurgyis B, Kurita K, Kurosawa M, Kwon Y, Lacey R, Lajoie JG, Lallow EO, Lebedev A, Lee S, Lee SH, Leitch MJ, Leung YH, Lewis NA, Li X, Li X, Lim SH, Liu LD, Liu MX, Loggins VR, Lökös S, Lovasz K, Lynch D, Majoros T, Makdisi YI, Makek M, Malaev M, Manion A, Manko VI, Mannel E, Masuda H, McCumber M, McGaughey PL, McGlinchey D, McKinney C, Meles A, Mendoza M, Metzger WJ, Mignerey AC, Mihalik DE, Milov A, Mishra DK, Mitchell JT, Mitrankov I, Mitsuka G, Miyasaka S, Mizuno S, Mohanty AK, Montuenga P, Moon T, Morrison DP, Morrow SI, Moukhanova TV, Murakami T, Murata J, Mwai A, Nagai K, Nagashima K, Nagashima T, Nagle JL, Nagy MI, Nakagawa I, Nakagomi H, Nakano K, Nattrass C, Netrakanti PK, Niida T, Nishimura S, Nishitani R, Nouicer R, Novák T, Novitzky N, Novotny R, Nyanin AS, O'Brien E, Ogilvie CA, Orjuela Koop JD, Osborn JD, Oskarsson A, Ottino GJ, Ozawa K, Pak R, Pantuev V, Papavassiliou V, Park JS, Park S, Pate SF, Patel M, Peng JC, Peng W, Perepelitsa DV, Perera GDN, Peressounko DY, PerezLara CE, Perry J, Petti R, Phipps M, Pinkenburg C, Pinson R, Pisani RP, Pun A, Purschke ML, Radzevich PV, Rak J, Ramson BJ, Ravinovich I, Read KF, Reynolds D, Riabov V, Riabov Y, Richford D, Rinn T, Rolnick SD, Rosati M, Rowan Z, Rubin JG, Runchey J, Safonov AS, Sahlmueller B, Saito N, Sakaguchi T, Sako H, Samsonov V, Sarsour M, Sato K, Sato S, Schaefer B, Schmoll BK, Sedgwick K, Seidl R, Sen A, Seto R, Sett P, Sexton A, Sharma D, Shein I, Shibata TA, Shigaki K, Shimomura M, Shioya T, Shukla P, Sickles A, Silva CL, Silvermyr D, Singh BK, Singh CP, Singh V, Skoby MJ, Slunečka M, Smith KL, Snowball M, Soltz RA, Sondheim WE, Sorensen SP, Sourikova IV, Stankus PW, Stepanov M, Stoll SP, Sugitate T, Sukhanov A, Sumita T, Sun J, Sun Z, Suzuki S, Syed S, Sziklai J, Takeda A, Taketani A, Tanida K, Tannenbaum MJ, Tarafdar S, Taranenko A, Tarnai G, Tieulent R, Timilsina A, Todoroki T, Tomášek M, Towell CL, Towell R, Towell RS, Tserruya I, Ueda Y, Ujvari B, van Hecke HW, Vazquez-Carson S, Velkovska J, Virius M, Vrba V, Vukman N, Wang XR, Wang Z, Watanabe Y, Watanabe YS, Wei F, White AS, Wong CP, Woody CL, Wysocki M, Xia B, Xu C, Xu Q, Xue L, Yalcin S, Yamaguchi YL, Yamamoto H, Yanovich A, Yin P, Yoo JH, Yoon I, Yu H, Yushmanov IE, Zajc WA, Zelenski A, Zharko S, Zhou S, Zou L. Pseudorapidity Dependence of Particle Production and Elliptic Flow in Asymmetric Nuclear Collisions of p+Al, p+Au, d+Au, and ^{3}He+Au at sqrt[s_{NN}]=200 GeV. Phys Rev Lett 2018; 121:222301. [PMID: 30547634 DOI: 10.1103/physrevlett.121.222301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/12/2018] [Indexed: 06/09/2023]
Abstract
Asymmetric nuclear collisions of p+Al, p+Au, d+Au, and ^{3}He+Au at sqrt[s_{NN}]=200 GeV provide an excellent laboratory for understanding particle production, as well as exploring interactions among these particles after their initial creation in the collision. We present measurements of charged hadron production dN_{ch}/dη in all such collision systems over a broad pseudorapidity range and as a function of collision multiplicity. A simple wounded quark model is remarkably successful at describing the full data set. We also measure the elliptic flow v_{2} over a similarly broad pseudorapidity range. These measurements provide key constraints on models of particle emission and their translation into flow.
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Affiliation(s)
- A Adare
- University of Colorado, Boulder, Colorado 80309, USA
| | - C Aidala
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | - N N Ajitanand
- Chemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USA
| | - Y Akiba
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - M Alfred
- Department of Physics and Astronomy, Howard University, Washington, DC 20059, USA
| | - V Andrieux
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | - K Aoki
- KEK, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - N Apadula
- Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - H Asano
- Kyoto University, Kyoto 606-8502, Japan
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - C Ayuso
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | - B Azmoun
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - V Babintsev
- IHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia
| | - M Bai
- Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - N S Bandara
- Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003-9337, USA
| | - B Bannier
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - K N Barish
- University of California-Riverside, Riverside, California 92521, USA
| | - S Bathe
- Baruch College, City University of New York, New York, New York, 10010 USA
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - A Bazilevsky
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - M Beaumier
- University of California-Riverside, Riverside, California 92521, USA
| | - S Beckman
- University of Colorado, Boulder, Colorado 80309, USA
| | - R Belmont
- University of Colorado, Boulder, Colorado 80309, USA
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | - A Berdnikov
- Saint Petersburg State Polytechnic University, St. Petersburg, 195251 Russia
| | - Y Berdnikov
- Saint Petersburg State Polytechnic University, St. Petersburg, 195251 Russia
| | - D S Blau
- National Research Center "Kurchatov Institute," Moscow 123098, Russia
- National Research Nuclear University, MEPhI, Moscow Engineering Physics Institute, Moscow 115409, Russia
| | - M Boer
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J S Bok
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - K Boyle
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - M L Brooks
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Bryslawskyj
- Baruch College, City University of New York, New York, New York, 10010 USA
- University of California-Riverside, Riverside, California 92521, USA
| | - V Bumazhnov
- IHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia
| | - C Butler
- Georgia State University, Atlanta, Georgia 30303, USA
| | - S Campbell
- Columbia University, New York, New York 10027 and Nevis Laboratories, Irvington, New York 10533, USA
- Iowa State University, Ames, Iowa 50011, USA
| | - V Canoa Roman
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - R Cervantes
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - C-H Chen
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - C Y Chi
- Columbia University, New York, New York 10027 and Nevis Laboratories, Irvington, New York 10533, USA
| | - M Chiu
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - I J Choi
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - J B Choi
- Chonbuk National University, Jeonju 561-756, Korea
| | - T Chujo
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - Z Citron
- Weizmann Institute, Rehovot 76100, Israel
| | - M Connors
- Georgia State University, Atlanta, Georgia 30303, USA
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - N Cronin
- Muhlenberg College, Allentown, Pennsylvania 18104-5586, USA
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - M Csanád
- ELTE, Eötvös Loránd University, H-1117 Budapest, Pázmány P. s. 1/A, Hungary
| | - T Csörgő
- Eszterházy Károly University, Károly Róbert Campus, H-3200 Gyöngyös, Mátrai út 36, Hungary
- Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Hungarian Academy of Sciences (Wigner RCP, RMKI) H-1525 Budapest 114, P.O. Box 49, Budapest, Hungary
| | - T W Danley
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - A Datta
- University of New Mexico, Albuquerque, New Mexico 87131, USA
| | | | - G David
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- Debrecen University, H-4010 Debrecen, Egyetem tér 1, Hungary
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - K DeBlasio
- University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - K Dehmelt
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - A Denisov
- IHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia
| | - A Deshpande
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - E J Desmond
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - A Dion
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - P B Diss
- University of Maryland, College Park, Maryland 20742, USA
| | - D Dixit
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - J H Do
- Yonsei University, IPAP, Seoul 120-749, Korea
| | - A Drees
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - K A Drees
- Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - M Dumancic
- Weizmann Institute, Rehovot 76100, Israel
| | - J M Durham
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A Durum
- IHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia
| | - T Elder
- Georgia State University, Atlanta, Georgia 30303, USA
| | - A Enokizono
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Physics Department, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - H En'yo
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - S Esumi
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - B Fadem
- Muhlenberg College, Allentown, Pennsylvania 18104-5586, USA
| | - W Fan
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - N Feege
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - D E Fields
- University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - M Finger
- Charles University, Ovocný trh 5, Praha 1, 116 36 Prague, Czech Republic
| | - M Finger
- Charles University, Ovocný trh 5, Praha 1, 116 36 Prague, Czech Republic
| | - S L Fokin
- National Research Center "Kurchatov Institute," Moscow 123098, Russia
| | - J E Frantz
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - A Franz
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - A D Frawley
- Florida State University, Tallahassee, Florida 32306, USA
| | - Y Fukuda
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - C Gal
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - P Gallus
- Czech Technical University, Zikova 4, 166 36 Prague 6, Czech Republic
| | - P Garg
- Department of Physics, Banaras Hindu University, Varanasi 221005, India
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - H Ge
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - F Giordano
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - A Glenn
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Y Goto
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - N Grau
- Department of Physics, Augustana University, Sioux Falls, South Dakota 57197, USA
| | - S V Greene
- Vanderbilt University, Nashville, Tennessee 37235, USA
| | | | - T Gunji
- Center for Nuclear Study, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - H Guragain
- Georgia State University, Atlanta, Georgia 30303, USA
| | - T Hachiya
- Nara Women's University, Kita-uoya Nishi-machi Nara 630-8506, Japan
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - J S Haggerty
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - K I Hahn
- Ewha Womans University, Seoul 120-750, Korea
| | - H Hamagaki
- Center for Nuclear Study, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - H F Hamilton
- Abilene Christian University, Abilene, Texas 79699, USA
| | - S Y Han
- Ewha Womans University, Seoul 120-750, Korea
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - J Hanks
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - S Hasegawa
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - T O S Haseler
- Georgia State University, Atlanta, Georgia 30303, USA
| | - K Hashimoto
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Physics Department, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - X He
- Georgia State University, Atlanta, Georgia 30303, USA
| | - T K Hemmick
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - J C Hill
- Iowa State University, Ames, Iowa 50011, USA
| | - K Hill
- University of Colorado, Boulder, Colorado 80309, USA
| | - A Hodges
- Georgia State University, Atlanta, Georgia 30303, USA
| | - R S Hollis
- University of California-Riverside, Riverside, California 92521, USA
| | - K Homma
- Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - B Hong
- Korea University, Seoul 136-701, Korea
| | - T Hoshino
- Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - N Hotvedt
- Iowa State University, Ames, Iowa 50011, USA
| | - J Huang
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - S Huang
- Vanderbilt University, Nashville, Tennessee 37235, USA
| | - K Imai
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - J Imrek
- Debrecen University, H-4010 Debrecen, Egyetem tér 1, Hungary
| | - M Inaba
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - A Iordanova
- University of California-Riverside, Riverside, California 92521, USA
| | - D Isenhower
- Abilene Christian University, Abilene, Texas 79699, USA
| | - Y Ito
- Nara Women's University, Kita-uoya Nishi-machi Nara 630-8506, Japan
| | - D Ivanishchev
- PNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region 188300, Russia
| | - B V Jacak
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - M Jezghani
- Georgia State University, Atlanta, Georgia 30303, USA
| | - Z Ji
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - J Jia
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- Chemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USA
| | - X Jiang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - B M Johnson
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- Georgia State University, Atlanta, Georgia 30303, USA
| | - V Jorjadze
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - D Jouan
- IPN-Orsay, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, BP1, F-91406 Orsay, France
| | - D S Jumper
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - S Kanda
- Center for Nuclear Study, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - J H Kang
- Yonsei University, IPAP, Seoul 120-749, Korea
| | - D Kapukchyan
- University of California-Riverside, Riverside, California 92521, USA
| | - S Karthas
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - D Kawall
- Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003-9337, USA
| | - A V Kazantsev
- National Research Center "Kurchatov Institute," Moscow 123098, Russia
| | - J A Key
- University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - V Khachatryan
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - A Khanzadeev
- PNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region 188300, Russia
| | - C Kim
- University of California-Riverside, Riverside, California 92521, USA
- Korea University, Seoul 136-701, Korea
| | - D J Kim
- Helsinki Institute of Physics and University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - E-J Kim
- Chonbuk National University, Jeonju 561-756, Korea
| | - G W Kim
- Ewha Womans University, Seoul 120-750, Korea
| | - M Kim
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Department of Physics and Astronomy, Seoul National University, Seoul 151-742, Korea
| | - M H Kim
- Korea University, Seoul 136-701, Korea
| | - B Kimelman
- Muhlenberg College, Allentown, Pennsylvania 18104-5586, USA
| | - D Kincses
- ELTE, Eötvös Loránd University, H-1117 Budapest, Pázmány P. s. 1/A, Hungary
| | - E Kistenev
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - R Kitamura
- Center for Nuclear Study, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - J Klatsky
- Florida State University, Tallahassee, Florida 32306, USA
| | - D Kleinjan
- University of California-Riverside, Riverside, California 92521, USA
| | - P Kline
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - T Koblesky
- University of Colorado, Boulder, Colorado 80309, USA
| | - B Komkov
- PNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region 188300, Russia
| | - D Kotov
- PNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region 188300, Russia
- Saint Petersburg State Polytechnic University, St. Petersburg, 195251 Russia
| | - S Kudo
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - B Kurgyis
- ELTE, Eötvös Loránd University, H-1117 Budapest, Pázmány P. s. 1/A, Hungary
| | - K Kurita
- Physics Department, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - M Kurosawa
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - Y Kwon
- Yonsei University, IPAP, Seoul 120-749, Korea
| | - R Lacey
- Chemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USA
| | - J G Lajoie
- Iowa State University, Ames, Iowa 50011, USA
| | - E O Lallow
- Muhlenberg College, Allentown, Pennsylvania 18104-5586, USA
| | - A Lebedev
- Iowa State University, Ames, Iowa 50011, USA
| | - S Lee
- Yonsei University, IPAP, Seoul 120-749, Korea
| | - S H Lee
- Iowa State University, Ames, Iowa 50011, USA
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - M J Leitch
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - Y H Leung
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - N A Lewis
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | - X Li
- Science and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, Beijing 102413, People's Republic of China
| | - X Li
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S H Lim
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- Yonsei University, IPAP, Seoul 120-749, Korea
| | - L D Liu
- Peking University, Beijing 100871, People's Republic of China
| | - M X Liu
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - V-R Loggins
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - S Lökös
- ELTE, Eötvös Loránd University, H-1117 Budapest, Pázmány P. s. 1/A, Hungary
- Eszterházy Károly University, Károly Róbert Campus, H-3200 Gyöngyös, Mátrai út 36, Hungary
| | - K Lovasz
- Debrecen University, H-4010 Debrecen, Egyetem tér 1, Hungary
| | - D Lynch
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - T Majoros
- Debrecen University, H-4010 Debrecen, Egyetem tér 1, Hungary
| | - Y I Makdisi
- Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - M Makek
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička c. 32 HR-10002 Zagreb, Croatia
| | - M Malaev
- PNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region 188300, Russia
| | - A Manion
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - V I Manko
- National Research Center "Kurchatov Institute," Moscow 123098, Russia
| | - E Mannel
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - H Masuda
- Physics Department, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - M McCumber
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - P L McGaughey
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D McGlinchey
- University of Colorado, Boulder, Colorado 80309, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C McKinney
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - A Meles
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - M Mendoza
- University of California-Riverside, Riverside, California 92521, USA
| | - W J Metzger
- Eszterházy Károly University, Károly Róbert Campus, H-3200 Gyöngyös, Mátrai út 36, Hungary
| | - A C Mignerey
- University of Maryland, College Park, Maryland 20742, USA
| | - D E Mihalik
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - A Milov
- Weizmann Institute, Rehovot 76100, Israel
| | - D K Mishra
- Bhabha Atomic Research Centre, Bombay 400 085, India
| | - J T Mitchell
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - I Mitrankov
- Saint Petersburg State Polytechnic University, St. Petersburg, 195251 Russia
| | - G Mitsuka
- KEK, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - S Miyasaka
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - S Mizuno
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - A K Mohanty
- Bhabha Atomic Research Centre, Bombay 400 085, India
| | - P Montuenga
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - T Moon
- Yonsei University, IPAP, Seoul 120-749, Korea
| | - D P Morrison
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - S I Morrow
- Vanderbilt University, Nashville, Tennessee 37235, USA
| | - T V Moukhanova
- National Research Center "Kurchatov Institute," Moscow 123098, Russia
| | - T Murakami
- Kyoto University, Kyoto 606-8502, Japan
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - J Murata
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Physics Department, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - A Mwai
- Chemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USA
| | - K Nagai
- Department of Physics, Tokyo Institute of Technology, Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - K Nagashima
- Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - T Nagashima
- Physics Department, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - J L Nagle
- University of Colorado, Boulder, Colorado 80309, USA
| | - M I Nagy
- ELTE, Eötvös Loránd University, H-1117 Budapest, Pázmány P. s. 1/A, Hungary
| | - I Nakagawa
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - H Nakagomi
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - K Nakano
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - C Nattrass
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | | | - T Niida
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - S Nishimura
- Center for Nuclear Study, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
| | - R Nishitani
- Nara Women's University, Kita-uoya Nishi-machi Nara 630-8506, Japan
| | - R Nouicer
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - T Novák
- Eszterházy Károly University, Károly Róbert Campus, H-3200 Gyöngyös, Mátrai út 36, Hungary
- Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Hungarian Academy of Sciences (Wigner RCP, RMKI) H-1525 Budapest 114, P.O. Box 49, Budapest, Hungary
| | - N Novitzky
- Helsinki Institute of Physics and University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - R Novotny
- Czech Technical University, Zikova 4, 166 36 Prague 6, Czech Republic
| | - A S Nyanin
- National Research Center "Kurchatov Institute," Moscow 123098, Russia
| | - E O'Brien
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - C A Ogilvie
- Iowa State University, Ames, Iowa 50011, USA
| | | | - J D Osborn
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | - A Oskarsson
- Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden
| | - G J Ottino
- University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - K Ozawa
- KEK, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - R Pak
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - V Pantuev
- Institute for Nuclear Research of the Russian Academy of Sciences, prospekt 60-letiya Oktyabrya 7a, Moscow 117312, Russia
| | - V Papavassiliou
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - J S Park
- Department of Physics and Astronomy, Seoul National University, Seoul 151-742, Korea
| | - S Park
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Department of Physics and Astronomy, Seoul National University, Seoul 151-742, Korea
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - S F Pate
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - M Patel
- Iowa State University, Ames, Iowa 50011, USA
| | - J-C Peng
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - W Peng
- Vanderbilt University, Nashville, Tennessee 37235, USA
| | - D V Perepelitsa
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- University of Colorado, Boulder, Colorado 80309, USA
| | - G D N Perera
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - D Yu Peressounko
- National Research Center "Kurchatov Institute," Moscow 123098, Russia
| | - C E PerezLara
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - J Perry
- Iowa State University, Ames, Iowa 50011, USA
| | - R Petti
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - M Phipps
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - C Pinkenburg
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - R Pinson
- Abilene Christian University, Abilene, Texas 79699, USA
| | - R P Pisani
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - A Pun
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
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- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
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- Saint Petersburg State Polytechnic University, St. Petersburg, 195251 Russia
| | - J Rak
- Helsinki Institute of Physics and University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - B J Ramson
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | | | - K F Read
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - D Reynolds
- Chemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USA
| | - V Riabov
- National Research Nuclear University, MEPhI, Moscow Engineering Physics Institute, Moscow 115409, Russia
- PNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region 188300, Russia
| | - Y Riabov
- PNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region 188300, Russia
- Saint Petersburg State Polytechnic University, St. Petersburg, 195251 Russia
| | - D Richford
- Baruch College, City University of New York, New York, New York, 10010 USA
| | - T Rinn
- Iowa State University, Ames, Iowa 50011, USA
| | - S D Rolnick
- University of California-Riverside, Riverside, California 92521, USA
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- Iowa State University, Ames, Iowa 50011, USA
| | - Z Rowan
- Baruch College, City University of New York, New York, New York, 10010 USA
| | - J G Rubin
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | - J Runchey
- Iowa State University, Ames, Iowa 50011, USA
| | - A S Safonov
- Saint Petersburg State Polytechnic University, St. Petersburg, 195251 Russia
| | - B Sahlmueller
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - N Saito
- KEK, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
| | - T Sakaguchi
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - H Sako
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - V Samsonov
- National Research Nuclear University, MEPhI, Moscow Engineering Physics Institute, Moscow 115409, Russia
- PNPI, Petersburg Nuclear Physics Institute, Gatchina, Leningrad region 188300, Russia
| | - M Sarsour
- Georgia State University, Atlanta, Georgia 30303, USA
| | - K Sato
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - S Sato
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
| | - B Schaefer
- Vanderbilt University, Nashville, Tennessee 37235, USA
| | - B K Schmoll
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - K Sedgwick
- University of California-Riverside, Riverside, California 92521, USA
| | - R Seidl
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - A Sen
- Iowa State University, Ames, Iowa 50011, USA
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - R Seto
- University of California-Riverside, Riverside, California 92521, USA
| | - P Sett
- Bhabha Atomic Research Centre, Bombay 400 085, India
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- University of Maryland, College Park, Maryland 20742, USA
| | - D Sharma
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - I Shein
- IHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia
| | - T-A Shibata
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- Department of Physics, Tokyo Institute of Technology, Oh-okayama, Meguro, Tokyo 152-8551, Japan
| | - K Shigaki
- Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - M Shimomura
- Iowa State University, Ames, Iowa 50011, USA
- Nara Women's University, Kita-uoya Nishi-machi Nara 630-8506, Japan
| | - T Shioya
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - P Shukla
- Bhabha Atomic Research Centre, Bombay 400 085, India
| | - A Sickles
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - C L Silva
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Silvermyr
- Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - B K Singh
- Department of Physics, Banaras Hindu University, Varanasi 221005, India
| | - C P Singh
- Department of Physics, Banaras Hindu University, Varanasi 221005, India
| | - V Singh
- Department of Physics, Banaras Hindu University, Varanasi 221005, India
| | - M J Skoby
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | - M Slunečka
- Charles University, Ovocný trh 5, Praha 1, 116 36 Prague, Czech Republic
| | - K L Smith
- Florida State University, Tallahassee, Florida 32306, USA
| | - M Snowball
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R A Soltz
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - W E Sondheim
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S P Sorensen
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - I V Sourikova
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - P W Stankus
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - M Stepanov
- Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003-9337, USA
| | - S P Stoll
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - T Sugitate
- Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - A Sukhanov
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - T Sumita
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
| | - J Sun
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - Z Sun
- Debrecen University, H-4010 Debrecen, Egyetem tér 1, Hungary
| | - S Suzuki
- Nara Women's University, Kita-uoya Nishi-machi Nara 630-8506, Japan
| | - S Syed
- Georgia State University, Atlanta, Georgia 30303, USA
| | - J Sziklai
- Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Hungarian Academy of Sciences (Wigner RCP, RMKI) H-1525 Budapest 114, P.O. Box 49, Budapest, Hungary
| | - A Takeda
- Nara Women's University, Kita-uoya Nishi-machi Nara 630-8506, Japan
| | - A Taketani
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - K Tanida
- Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- Department of Physics and Astronomy, Seoul National University, Seoul 151-742, Korea
| | - M J Tannenbaum
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - S Tarafdar
- Vanderbilt University, Nashville, Tennessee 37235, USA
- Weizmann Institute, Rehovot 76100, Israel
| | - A Taranenko
- National Research Nuclear University, MEPhI, Moscow Engineering Physics Institute, Moscow 115409, Russia
- Chemistry Department, Stony Brook University, SUNY, Stony Brook, New York 11794-3400, USA
| | - G Tarnai
- Debrecen University, H-4010 Debrecen, Egyetem tér 1, Hungary
| | - R Tieulent
- Georgia State University, Atlanta, Georgia 30303, USA
- IPNL, CNRS/IN2P3, Université Lyon, Université Lyon 1, F-69622, Villeurbanne, France
| | - A Timilsina
- Iowa State University, Ames, Iowa 50011, USA
| | - T Todoroki
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - M Tomášek
- Czech Technical University, Zikova 4, 166 36 Prague 6, Czech Republic
| | - C L Towell
- Abilene Christian University, Abilene, Texas 79699, USA
| | - R Towell
- Abilene Christian University, Abilene, Texas 79699, USA
| | - R S Towell
- Abilene Christian University, Abilene, Texas 79699, USA
| | - I Tserruya
- Weizmann Institute, Rehovot 76100, Israel
| | - Y Ueda
- Hiroshima University, Kagamiyama, Higashi-Hiroshima 739-8526, Japan
| | - B Ujvari
- Debrecen University, H-4010 Debrecen, Egyetem tér 1, Hungary
| | - H W van Hecke
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | | | - J Velkovska
- Vanderbilt University, Nashville, Tennessee 37235, USA
| | - M Virius
- Czech Technical University, Zikova 4, 166 36 Prague 6, Czech Republic
| | - V Vrba
- Czech Technical University, Zikova 4, 166 36 Prague 6, Czech Republic
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Prague 8, Czech Republic
| | - N Vukman
- Department of Physics, Faculty of Science, University of Zagreb, Bijenička c. 32 HR-10002 Zagreb, Croatia
| | - X R Wang
- New Mexico State University, Las Cruces, New Mexico 88003, USA
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - Z Wang
- Baruch College, City University of New York, New York, New York, 10010 USA
| | - Y Watanabe
- RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - Y S Watanabe
- Center for Nuclear Study, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
- KEK, High Energy Accelerator Research Organization, Tsukuba, Ibaraki 305-0801, Japan
| | - F Wei
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - A S White
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA
| | - C P Wong
- Georgia State University, Atlanta, Georgia 30303, USA
| | - C L Woody
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - M Wysocki
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - B Xia
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - C Xu
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - Q Xu
- Vanderbilt University, Nashville, Tennessee 37235, USA
| | - L Xue
- Georgia State University, Atlanta, Georgia 30303, USA
| | - S Yalcin
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - Y L Yamaguchi
- Center for Nuclear Study, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-0033, Japan
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
- Department of Physics and Astronomy, Stony Brook University, SUNY, Stony Brook, New York 11794-3800, USA
| | - H Yamamoto
- Tomonaga Center for the History of the Universe, University of Tsukuba, Tsukuba, Ibaraki 305, Japan
| | - A Yanovich
- IHEP Protvino, State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, 142281, Russia
| | - P Yin
- University of Colorado, Boulder, Colorado 80309, USA
| | - J H Yoo
- Korea University, Seoul 136-701, Korea
- RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - I Yoon
- Department of Physics and Astronomy, Seoul National University, Seoul 151-742, Korea
| | - H Yu
- New Mexico State University, Las Cruces, New Mexico 88003, USA
- Peking University, Beijing 100871, People's Republic of China
| | - I E Yushmanov
- National Research Center "Kurchatov Institute," Moscow 123098, Russia
| | - W A Zajc
- Columbia University, New York, New York 10027 and Nevis Laboratories, Irvington, New York 10533, USA
| | - A Zelenski
- Collider-Accelerator Department, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
| | - S Zharko
- Saint Petersburg State Polytechnic University, St. Petersburg, 195251 Russia
| | - S Zhou
- Science and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, Beijing 102413, People's Republic of China
| | - L Zou
- University of California-Riverside, Riverside, California 92521, USA
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Eom JS, Mok JH, Kim I, Lee MK, Lee G, Park H, Lee JW, Jeong YJ, Kim WY, Jo EJ, Kim MH, Lee K, Kim KU, Park HK. Radial probe endobronchial ultrasound using a guide sheath for peripheral lung lesions in beginners. BMC Pulm Med 2018; 18:137. [PMID: 30103727 PMCID: PMC6090614 DOI: 10.1186/s12890-018-0704-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 08/01/2018] [Indexed: 12/26/2022] Open
Abstract
Background The diagnostic yields and safety profiles of transbronchial lung biopsy have not been evaluated in inexperienced physicians using the combined modality of radial probe endobronchial ultrasound and a guide sheath (EBUS-GS). This study assessed the utility and safety of EBUS-GS during the learning phase by referring to a database of performed EBUS-GS procedures. Methods From December 2015 to January 2017, all of the consecutive patients who underwent EBUS-GS were registered. During the study period, two physicians with no previous experience performed the procedure. To assess the diagnostic yields, learning curve, and safety profile of EBUS-GS performed by these inexperienced physicians, the first 100 consecutive EBUS-GS procedures were included in the evaluation. Results The overall diagnostic yield of EBUS-GS performed by two physicans in 200 patients with a peripheral lung lesion was 73.0%. Learning curve analyses showed that the diagnostic yields were stable, even when the procedure was performed by beginners. Complications related to EBUS-GS occurred in three patients (1.5%): pneumothorax developed in two patients (1%) and resolved spontaneously without chest tube drainage; another patient (0.5%) developed a pulmonary infection after EBUS-GS. There were no cases of pneumothorax requiring chest tube drainage, severe hemorrhage, respiratory failure, premature termination of the procedure, or procedure-related mortality. Conclusions EBUS-GS is a safe and stable procedure with an acceptable diagnostic yield, even when performed by physicians with no previous experience. Electronic supplementary material The online version of this article (10.1186/s12890-018-0704-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jung Seop Eom
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Jeong Ha Mok
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea
| | - Insu Kim
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea
| | - Min Ki Lee
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea.
| | - Geewon Lee
- Department of Radiology, Pusan National University School of Medicine, Busan, South Korea
| | - Hyemi Park
- Biostatistics Team of Regional Center for Respiratory Diseases, Pusan National University School of Medicine, Busan, South Korea
| | - Ji Won Lee
- Department of Radiology, Pusan National University School of Medicine, Busan, South Korea
| | - Yeon Joo Jeong
- Department of Radiology, Pusan National University School of Medicine, Busan, South Korea
| | - Won-Young Kim
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea
| | - Eun Jung Jo
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea
| | - Mi Hyun Kim
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea
| | - Kwangha Lee
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea
| | - Ki Uk Kim
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea
| | - Hye-Kyung Park
- Department of Internal Medicine, Pusan National University School of Medicine, 179 Gudeok-ro, Seo-gu, Busan, 602-739, South Korea
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Kim SJ, Kim MH, Jin CD, Shin ES, Ann SH, Cho YR, Park JS, Park TH. P5732Prasugrel or clopidogrel in non-ST-elevation acute coronary syndrome with CYP2C19 genetic variants undergoing percutaneous coronary intervention. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- S J Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - M H Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - C D Jin
- The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Department of Cardiology, Wuxi, China People's Republic of
| | - E S Shin
- Ulsan University Hospital, Department of Cardiology, Ulsan, Korea Republic of
| | - S H Ann
- Ulsan University Hospital, Department of Cardiology, Ulsan, Korea Republic of
| | - Y R Cho
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - J S Park
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - T H Park
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
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Choi SY, Kim MH, Kim SJ, Park KI, Chung MT, Lee KM, Park JS. P1723When will be appropriate time for P2Y12 inhibitors dose de-escalation? Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Y Choi
- Daegu Health College, Department of Biomedical Laboratory Science, Daegu, Korea Republic of
| | - M H Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - S J Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - K I Park
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - M T Chung
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - K M Lee
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - J S Park
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
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Song K, Kim MH, Li JX. P3584Long term outcome of unprotected left main coronary artery disease: comparison between CABG and pci in korean single center. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K Song
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - M H Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - J X Li
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
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Kim MH, Lee KM, Kim SJ, Choi SY, Kim JK, Kim SW, Park JS, Park KI. P3445Stroke and mortality rate for long-term antiplatelet therapy in percutaneous coronary intervention patients using korean national health insurance service (NHIS) database. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M H Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - K M Lee
- Daegu Health College, Industry Academic Cooperation Foundation, Daegu, Korea Republic of
| | - S J Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - S Y Choi
- Daegu Health College, Department of Biomedical Laboratory Science, Daegu, Korea Republic of
| | - J K Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - S W Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - J S Park
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - K I Park
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
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Li JX, Kim MH, Song K. P5734Genetic influence on warfarin dose determination. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J X Li
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - M H Kim
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
| | - K Song
- Dong-A University, Department of Cardiology, College of Medicine, Busan, Korea Republic of
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Kim WY, Kim MH, Jo EJ, Eom JS, Mok J, Kim KU, Park HK, Lee MK, Lee K. Predicting Mortality in Patients with Tuberculous Destroyed Lung Receiving Mechanical Ventilation. Tuberc Respir Dis (Seoul) 2018; 81:247-255. [PMID: 29926549 PMCID: PMC6030661 DOI: 10.4046/trd.2017.0126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 02/11/2018] [Accepted: 03/12/2018] [Indexed: 01/09/2023] Open
Abstract
Background Patients with acute respiratory failure secondary to tuberculous destroyed lung (TDL) have a poor prognosis. The aim of the present retrospective study was to develop a mortality prediction model for TDL patients who require mechanical ventilation. Methods Data from consecutive TDL patients who had received mechanical ventilation at a single university-affiliated tertiary care hospital in Korea were reviewed. Binary logistic regression was used to identify factors predicting intensive care unit (ICU) mortality. A TDL on mechanical Ventilation (TDL-Vent) score was calculated by assigning points to variables according to β coefficient values. Results Data from 125 patients were reviewed. A total of 36 patients (29%) died during ICU admission. On the basis of multivariate analysis, the following factors were included in the TDL-Vent score: age ≥65 years, vasopressor use, and arterial partial pressure of oxygen/fraction of inspired oxygen ratio <180. In a second regression model, a modified score was then calculated by adding brain natriuretic peptide. For TDL-Vent scores 0 to 3, the 60-day mortality rates were 11%, 27%, 30%, and 77%, respectively (p<0.001). For modified TDL-Vent scores 0 to ≥3, the 60-day mortality rates were 0%, 21%, 33%, and 57%, respectively (p=0.001). For both the TDL-Vent score and the modified TDL-Vent score, the areas under the receiver operating characteristic curve were larger than that of other illness severity scores. Conclusion The TDL-Vent model identifies TDL patients on mechanical ventilation with a high risk of mortality. Prospective validation studies in larger cohorts are now warranted.
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Affiliation(s)
- Won Young Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Mi Hyun Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Eun Jung Jo
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Jung Seop Eom
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Jeongha Mok
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Ki Uk Kim
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Hye Kyung Park
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Min Ki Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
| | - Kwangha Lee
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
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Ko KJ, Kim YH, Kwon KH, Kim MH, Jun KW, Hwang JK, Kim SD, Park SC, Kim JI, Yun SS, Moon IS. Kidney Transplantation Using Expanded-Criteria Deceased Donors: A Comparison With Ideal Deceased Donors and Non-Expanded-Criteria Deceased Donors. Transplant Proc 2018; 50:3222-3227. [PMID: 30577189 DOI: 10.1016/j.transproceed.2018.05.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/09/2018] [Accepted: 05/23/2018] [Indexed: 12/31/2022]
Abstract
PURPOSE The use of expanded-criteria deceased-donor (ECD) kidneys must be evaluated within the objective perspective of critical organ shortage and graft function and survival. In this study, we aimed to compare the clinical outcomes of ECD reliance with concurrent use of ideal-criteria deceased donors (IDDs) and non-ECDs in adult renal transplantation. METHODS Between February 2000 and December 2015, we analyzed 405 deceased-donor renal transplants, specifically 129 grafts (31.9%) from ECDs, 233 grafts (57.5%) from non-ECDs, and 43 grafts (10.6%) from IDDs. ECDs were classified according to the United Network for Organ Sharing guidelines, while an IDD was defined as a younger person (10-39 years of age) with no medical risk factors who died from a traumatic head injury. Donor and recipient risk factors were separately analyzed and correlated with recipient graft function, and survival was evaluated. RESULTS ECDs were older (56.8 ± 6.3 years); showed increased incidence of hypertension, diabetes, and cerebrovascular brain death; and had a higher pre-retrieval serum creatinine level than the other groups. ECD kidney recipients were also older (50.6 ± 9.8 years), had a shorter waiting time (P = .031), and demonstrated a low frequency of re-transplantation (P = .028). Long-term renal function followed longitudinally was lower in ECD kidney recipients until five years after transplantation, while the glomerular filtration rate (GFR) level at 7 and 10 years did not differ significantly among the groups (P = .074 and .262, respectively). There were no significant differences in terms of graft survival (P = .394) or patient survival (P = .737) among the groups. CONCLUSIONS Although the long-term renal function followed longitudinally was lower in ECD kidney recipients, the use of renal grafts from ECDs is an acceptable method to resolve the disparity of critical organ shortage. However, the classification of the high-risk group should be updated with consideration given to differences in regional characteristics.
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Affiliation(s)
- K J Ko
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - Y H Kim
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - K H Kwon
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - M H Kim
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - K W Jun
- Department of Surgery, Bucheon St. Mary's Hospital, Gyeonggi, Republic of Korea
| | - J K Hwang
- Department of Surgery, Daejeon St. Mary's Hospital, Daejeon, Republic of Korea.
| | - S D Kim
- Department of Surgery, Incheon St. Mary's Hospital, Incheon, Republic of Korea
| | - S C Park
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - J I Kim
- Department of Surgery, Uijeongbu St. Mary's Hospital, Gyeonggi, Republic of Korea
| | - S S Yun
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - I S Moon
- Department of Surgery, Yeouido St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
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