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Son HJ, Bae S, Cho K, Park I, Kim J, Han H, Kim EO, Jung J, Kim SH, Lee SO. Impact of carbapenem-targeted antimicrobial stewardship interventions: an interrupted time-series analysis. J Hosp Infect 2023; 140:132-138. [PMID: 37544365 DOI: 10.1016/j.jhin.2023.07.019] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/08/2023]
Abstract
BACKGROUND The development of carbapenem-resistant Gram-negative bacilli (CR-GNB) is largely favoured by indiscriminate and prolonged carbapenem use, which is a significant contributing factor. AIM To evaluate the impact of two carbapenem antibiotic stewardship programme interventions on both carbapenem prescriptions and the clinical isolation rates of CR-GNBs, using interrupted time-series analysis. METHODS A time-series analysis was performed using data for carbapenem usage from a tertiary hospital in South Korea from January 2017 to July 2022. Two carbapenem antibiotic stewardship programme interventions were implemented sequentially: (i) a prospective audit and feedback (PAF) from November 2018 to April 2020 (intervention 1), and (ii) preauthorization from May 2020 to August 2020 (intervention 2). Monthly carbapenem usage and incidence of CR-GNB before and after each intervention were compared using an autoregressive integrated moving average model. FINDINGS Implementation of PAF resulted in a significant reduction in carbapenem consumption, followed by an additional decrease after the preauthorization was implemented. The incidence of carbapenem-resistant Escherichia coli and Klebsiella pneumoniae increased after intervention 1, but there was a significant change from an increasing trend to a stationary trend after intervention 2. The incidence of carbapenem-resistant Pseudomonas aeruginosa, which had increased during the baseline period, became stationary after intervention 1. A significant decrease was observed in the incidence of carbapenem-resistant Acinetobacter baumannii during the implementation of intervention 1 and 2. CONCLUSION This study emphasizes the importance of adopting comprehensive antibiotic management and rigorous infection control to prevent infections caused by antibiotic-resistant bacteria.
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Affiliation(s)
- H-J Son
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Department of Infectious Diseases, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu, South Korea
| | - S Bae
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Antibiotic Support Team, Asan Medical Center, Seoul, South Korea
| | - K Cho
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Antibiotic Support Team, Asan Medical Center, Seoul, South Korea
| | - I Park
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Antibiotic Support Team, Asan Medical Center, Seoul, South Korea
| | - J Kim
- Department of Pharmacy, Asan Medical Center, Seoul, South Korea
| | - H Han
- Department of Pharmacy, Asan Medical Center, Seoul, South Korea
| | - E O Kim
- Office for Infection Control, Asan Medical Center, Seoul, South Korea
| | - J Jung
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Office for Infection Control, Asan Medical Center, Seoul, South Korea
| | - S-H Kim
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Office for Infection Control, Asan Medical Center, Seoul, South Korea
| | - S-O Lee
- Department of Infectious Disease, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea; Antibiotic Support Team, Asan Medical Center, Seoul, South Korea.
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Goo D, Park I, Nam H, Lee Y, Sawall J, Smith AH, Rehberger TG, Li C, Lillehoj HS. Collagen adhesin protein and necrotic enteritis B-like toxin as biomarkers for early diagnosis of necrotic enteritis in commercial broiler chickens. Poult Sci 2023; 102:102647. [PMID: 37060834 PMCID: PMC10139936 DOI: 10.1016/j.psj.2023.102647] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/07/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023] Open
Abstract
Mouse monoclonal antibodies (mAbs) reactive with Clostridium perfringens collagen adhesin protein (CNA) and necrotic enteritis B-like toxin (NetB) were developed. The best capture/detection mAb pairs for CNA and NetB were selected based on their affinity and specificity to develop sandwich enzyme-linked immunosorbent assays (ELISAs) to detect CNA and NetB proteins, respectively, in jejunal digesta samples from commercial broiler farms in the United States. Prior to the analysis of samples from commercial broiler flocks, the specificity and sensitivity of the CNA and NetB ELISAs were validated using sera, jejunal digesta, and fecal samples from chickens coinfected with Eimeria maxima and CNA+/NetB+C. perfringens in an animal model of necrotic enteritis (NE). Subsequently, a total of 251 field samples were collected from 74 commercial poultry farms. Among these, 18 samples were from 6 broiler farms that used certified organics (CO), and 155 samples were from 42 farms with nonantibiotics (NA). In jejunal digesta samples, CNA levels ranged from 0.02 to 0.59 ng/mL and NetB levels ranged from 0.09 to 1.91 ng/mL. CNA and NetB levels showed a positive correlation with each other (Pearson correlation coefficient r = 0.772, P < 0.001). CNA and NetB levels in jejunal digesta were significantly decreased in CO farms compared with those from NA farms (P < 0.001). In conclusion, these new C. perfringens antigen-specific sandwich ELISAs offer a sensitive and specific means to detect C. perfringens CNA and NetB proteins as biomarkers of early NE occurrence in field samples from commercial broiler chickens.
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Affiliation(s)
- D Goo
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA; Department of Poultry Science, University of Georgia, Athens, GA, USA
| | - I Park
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - H Nam
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - Y Lee
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - J Sawall
- Arm & Hammer Animal and Food Production, Waukesha, WI, USA
| | - A H Smith
- Arm & Hammer Animal and Food Production, Waukesha, WI, USA
| | - T G Rehberger
- Arm & Hammer Animal and Food Production, Waukesha, WI, USA
| | - C Li
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA
| | - H S Lillehoj
- Animal Bioscience and Biotechnology Laboratory, Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, USA.
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Park I, Kim N, Lee S, Park K, Son MY, Cho HS, Kim DS. Characterization of signature trends across the spectrum of non-alcoholic fatty liver disease using deep learning method. Life Sci 2023; 314:121195. [PMID: 36436619 DOI: 10.1016/j.lfs.2022.121195] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/02/2022] [Accepted: 11/11/2022] [Indexed: 11/26/2022]
Abstract
AIMS The timely diagnosis of different stages in NAFLD is crucial for disease treatment and reversal. We used hepatocellular ballooning to determine different NAFLD stages. MAIN METHODS We analyzed differentially expressed genes (DEGs) in 78 patients with NAFLD and in healthy controls from previously published RNA-seq data. We identified two expression types in NAFLD progression, calculated the predictive power of candidate genes, and validated them in an independent cohort. We also performed cancer studies with these candidates retrieved from the Cancer Genome Atlas. KEY FINDINGS We identified 103 DEGs in NAFLD patients compared to healthy controls: 75 genes gradually increased or decreased in the NAFLD stage, whereas 28 genes showed differences only in NASH. The former were enriched in negative regulation and binding-related genes; the latter were involved in positive regulation and cell proliferation. Feature selection showed the gradual up- or down-regulation of 21 genes in NASH compared to controls; 18 were highly expressed only in NASH. Using deep-learning method with subset of features from lasso regression, we obtained reliable determination performance in NAFL and NASH (accuracy: 0.857) and validated these genes using an independent cohort (accuracy: 0.805). From cancer studies, we identified significant differential expression of several candidate genes in LIHC; 5 genes were gradually up-regulated and 6 showing high expression only in NASH were influential to patient survival. SIGNIFICANCE The identified biomolecular signatures may determine the spectrum of NAFLD and its relationship with HCC, improving clinical diagnosis and prognosis and enabling a therapeutic intervention for NAFLD.
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Affiliation(s)
- Ilkyu Park
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, 34113 Daejeon, Republic of Korea; Department of Environmental Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, 34141 Daejeon, Republic of Korea
| | - Nakyoung Kim
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, 34113 Daejeon, Republic of Korea; Department of Environmental Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, 34141 Daejeon, Republic of Korea
| | - Sugi Lee
- Department of Environmental Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, 34141 Daejeon, Republic of Korea
| | - Kunhyang Park
- Department of Core Facility Management Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141,Republic of Korea
| | - Mi-Young Son
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, 34141 Daejeon, Republic of Korea.
| | - Hyun-Soo Cho
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, 34141 Daejeon, Republic of Korea.
| | - Dae-Soo Kim
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, 34113 Daejeon, Republic of Korea; Department of Environmental Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, 34141 Daejeon, Republic of Korea.
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Crespo E, Nosalski R, Park I, Goddard M, MacDonald L, McBride MW, Monaco C, Maffia P, Otto T, Guzik T. Single cell atlas of cd45+ cells in angiotensin II-induced hypertension. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2169] [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
Hypertension has been recently identified as an inflammatory disease. Immune cell infiltration is a characteristic feature in the vasculature and the kidneys in experimental hypertension, but the unique nature of such inflammatory infiltrates has not yet been comprehensively characterised.
Accordingly, we aimed to provide in-depth characteristics of immune cells in the vasculature and the kidneys in experimental hypertension.
To achieve this, we used single-cell RNA-sequencing of leukocytes (CD45+ cells were sorted) using the 10x Genomics platform in the aortas and the kidneys of male 12-week-old C57BL/6J mice (n=16–17/group) upon AngII (490 ng/min/kg) or sham buffer 14-day infusion, using osmotic minipumps. Samples were pooled to analyse three independent replicates. Bioinformatics analysis used Seurat/R to identify immune cell subpopulations and characterise differentially expressed genes (DEGs), pathways, and interactions signatures.
Ang II infusion increases the total number of CD45+ leukocytes in the aorta (346.7±89.1 vs. 1210±214.3; p=0,048), while in the kidneys, this was much less pronounced (1.1±0.5 fold vs. sham). Fifteen leukocyte populations/clusters were identified in the aorta and kidney based on their unique markers. In the aorta, shifts in numerous populations were evident, with the most significant differences in tissue-resident macrophages and activated tissue-resident macrophages, monocyte-derived dendritic cells and NK cells (Figure 1). Kidneys did not display such profound changes. The transcriptomic profile analysis showed 767 significant DEGs in the aorta and only 35 in the kidney. CellChat analysis also indicated more robust interactions between the immune cells in the aorta than in kidneys. These included Ifitm1, Apoe, Il1b, and C1q a/b/c, which were shared between aorta and kidney and may play an immunoregulatory role, affecting smooth muscle cell proliferation and arterial vascular remodelling. Top up-regulated leukocyte genes in the aorta included Ccl8, Ccl3, Cxcl2, Lyz2, and Spp1, while in the kidney, Cd74, Cst3, Fos, Fcer1g, Tyrobp, and Ccl4. GO pathway signatures of aortic leukocyte DEGs revealed pathways related to leukocyte migration, cytokine production, T cell activation, and leukocyte activation and adhesion. Cell-specific analysis showed that macrophage subpopulations most strongly increased in Ang II-induced hypertension displayed the most pronounced changes in the transcriptome profiles and cell-cell interactions.
Comprehensive single-cell RNA sequencing identifies tissue-resident macrophages, monocyte-derived dendritic cells, and NK cells as most affected leukocyte subpopulations in hypertensive vasculature. Differentially expressed genes support the role of these cells in vascular remodelling and propagation of inflammation, further supporting the identification of these cells as potential future targets for therapeutic interventions in hypertension.
Funding Acknowledgement
Type of funding sources: Public grant(s) – EU funding. Main funding source(s): European Research Council
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Affiliation(s)
- E Crespo
- University of Glasgow , Glasgow , United Kingdom
| | - R Nosalski
- University of Glasgow , Glasgow , United Kingdom
| | - I Park
- Kennedy Institute of Rheumatology , Oxford , United Kingdom
| | - M Goddard
- Kennedy Institute of Rheumatology , Oxford , United Kingdom
| | - L MacDonald
- University of Glasgow , Glasgow , United Kingdom
| | - M W McBride
- University of Glasgow , Glasgow , United Kingdom
| | - C Monaco
- Kennedy Institute of Rheumatology , Oxford , United Kingdom
| | - P Maffia
- University of Glasgow , Glasgow , United Kingdom
| | - T Otto
- University of Glasgow , Glasgow , United Kingdom
| | - T Guzik
- University of Glasgow , Glasgow , United Kingdom
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Cha Y, Park M, Park I, Kim J. 311P Differences in stromal component of chordoma are associated with contrast enhancement in MRI and differential gene expression in RNA sequencing. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Kim T, Park I. W029 Equations to estimate creatinine excretion rate (CER) modified for Korean population. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Park I, Keam B, Kim M, Yoon S, Lee J, Park K, Seo J. W120 Genotypic and phenotypic characteristics of hereditary leiomyomatosis and renal cell cancer syndrome in Korean patients. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kwonoh P, Park I, Kim J, Shin S, Lee H, Lee J. Effectiveness of docetaxel addition to androgen deprivation therapy for metastatic hormone-sensitive prostate cancer in real world practice. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)03137-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Park J, Park I, Hwang J, Bae W, Lee G, Kim L, Choi Y, Jung H, Kim M, Hong S, Lee H, Yu E, Lee A, Park Y, Chae Y. P21.02 Real-World Concordance Between Tumor Mutational Burden From Blood and Tissue in Lung Cancer and Other Cancers. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Im SA, Park I, Sohn J, Im YH, Lee S, Chang HK, Macharia H, Sun G, Lamour F, Oh DY. 284P Trastuzumab emtansine (T-DM1) in Asian patients with previously treated HER2-positive locally advanced (LA) or metastatic breast cancer (MBC): Data from the phase III EMILIA study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Park I, Jung J, Lee S, Park K, Ryu JW, Son MY, Cho HS, Kim DS. Correction to: Characterization of terminal-ileal and colonic Crohn's disease in treatment-naïve paediatric patients based on transcriptomic profile using logistic regression. J Transl Med 2021; 19:329. [PMID: 34344413 PMCID: PMC8336403 DOI: 10.1186/s12967-021-02945-9] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Ilkyu Park
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea.,Department of Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Jaeeun Jung
- Department of Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Sugi Lee
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea.,Department of Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Kunhyang Park
- Department of Core Facility Manage-ment Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea
| | - Jea-Woon Ryu
- Department of Rare Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea
| | - Mi-Young Son
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea.
| | - Hyun-Soo Cho
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea.
| | - Dae-Soo Kim
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea. .,Department of Environmental Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Korea.
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Park I, Jung J, Lee S, Park K, Ryu JW, Son MY, Cho HS, Kim DS. Characterization of terminal-ileal and colonic Crohn's disease in treatment-naïve paediatric patients based on transcriptomic profile using logistic regression. J Transl Med 2021; 19:250. [PMID: 34098982 PMCID: PMC8185924 DOI: 10.1186/s12967-021-02909-z] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 05/24/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Inflammatory bowel disease (IBD) is a chronic and idiopathic inflammatory disorder of the gastrointestinal tract and comprises ulcerative colitis (UC) and Crohn's disease (CD). Crohn's disease can affect any part of the gastrointestinal tract, but mainly the terminal ileum and colon. In the present study, we aimed to characterize terminal-ileal CD (ICD) and colonic CD (CCD) at the molecular level, which might enable a more optimized approach for the clinical care and scientific research of CD. METHODS We analyzed differentially expressed genes in samples from 23 treatment-naïve paediatric patients with CD and 25 non-IBD controls, and compared the data with previously published RNA-Seq data using multi-statistical tests and confidence intervals. We implemented functional profiling and proposed statistical methods for feature selection using a logistic regression model to identify genes that are highly associated in ICD or CCD. We also validated our final candidate genes in independent paediatric and adult cohorts. RESULTS We identified 550 genes specifically expressed in patients with CD compared with those in healthy controls (p < 0.05). Among these DEGs, 240 from patients with CCD were mainly involved in mitochondrial dysfunction, whereas 310 from patients with ICD were enriched in the ileum functions such as digestion, absorption, and metabolism. To choose the most effective gene set, we selected the most powerful genes (p-value ≤ 0.05, accuracy ≥ 0.8, and AUC ≥ 0.8) using logistic regression. Consequently, 33 genes were identified as useful for discriminating CD location; the accuracy and AUC were 0.86 and 0.83, respectively. We then validated the 33 genes with data from another independent paediatric cohort (accuracy = 0.93, AUC = 0.92) and adult cohort (accuracy = 0.88, AUC = 0.72). CONCLUSIONS In summary, we identified DEGs that are specifically expressed in CCD and ICD compared with those in healthy controls and patients with UC. Based on the feature selection analysis, 33 genes were identified as useful for discriminating CCD and ICD with high accuracy and AUC, for not only paediatric patients but also independent cohorts. We propose that our approach and the final gene set are useful for the molecular classification of patients with CD, and it could be beneficial in treatments based on disease location.
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Affiliation(s)
- Ilkyu Park
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea.,Department of Environmental Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Jaeeun Jung
- Department of Environmental Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Sugi Lee
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea.,Department of Environmental Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - Kunhyang Park
- Department of Core Facility Management Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea
| | - Jea-Woon Ryu
- Department of Rare Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea
| | - Mi-Young Son
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea.
| | - Hyun-Soo Cho
- Department of Stem Cell Convergence Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea.
| | - Dae-Soo Kim
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea. .,Department of Environmental Disease Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Korea.
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Song Y, Lim J, Lim T, Im K, Kim N, Nam Y, Jeon Y, Ko H, Park I, Shin J, Cho S. Human mesenchymal stem cells derived from umbilical cord and bone marrow exert immunomodulatory effects in different mechanisms. Cytotherapy 2021. [DOI: 10.1016/s1465324921003455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Autry AW, Park I, Kline C, Chen HY, Gordon JW, Raber S, Hoffman C, Kim Y, Okamoto K, Vigneron DB, Lupo JM, Prados M, Li Y, Xu D, Mueller S. Pilot Study of Hyperpolarized 13C Metabolic Imaging in Pediatric Patients with Diffuse Intrinsic Pontine Glioma and Other CNS Cancers. AJNR Am J Neuroradiol 2020; 42:178-184. [PMID: 33272950 DOI: 10.3174/ajnr.a6937] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 08/19/2020] [Indexed: 01/21/2023]
Abstract
BACKGROUND AND PURPOSE Pediatric CNS tumors commonly present challenges for radiographic interpretation on conventional MR imaging. This study sought to investigate the safety and tolerability of hyperpolarized carbon-13 (HP-13C) metabolic imaging in pediatric patients with brain tumors. MATERIALS AND METHODS Pediatric patients 3 to 18 years of age who were previously diagnosed with a brain tumor and could undergo MR imaging without sedation were eligible to enroll in this safety study of HP [1-13C]pyruvate. Participants received a one-time injection of HP [1-13C]pyruvate and were imaged using dynamic HP-13C MR imaging. We assessed 2 dose levels: 0.34 mL/kg and the highest tolerated adult dose of 0.43 mL/kg. Participants were monitored throughout imaging and for 60 minutes postinjection, including pre- and postinjection electrocardiograms and vital sign measurements. RESULTS Between February 2017 and July 2019, ten participants (9 males; median age, 14 years; range, 10-17 years) were enrolled, of whom 6 completed injection of HP [1-13C]pyruvate and dynamic HP-13C MR imaging. Four participants failed to undergo HP-13C MR imaging due to technical failures related to generating HP [1-13C]pyruvate or MR imaging operability. HP [1-13C]pyruvate was well-tolerated in all participants who completed the study, with no dose-limiting toxicities or adverse events observed at either 0.34 (n = 3) or 0.43 (n = 3) mL/kg. HP [1-13C]pyruvate demonstrated characteristic conversion to [1-13C]lactate and [13C]bicarbonate in the brain. Due to poor accrual, the study was closed after only 3 participants were enrolled at the highest dose level. CONCLUSIONS Dynamic HP-13C MR imaging was safely performed in 6 pediatric patients with CNS tumors and demonstrated HP [1-13C]pyruvate brain metabolism.
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Affiliation(s)
- A W Autry
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - I Park
- Department of Radiology (I.P.), Chonnam National University College of Medicine and Hospital, Gwangju, Korea
| | - C Kline
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics.,Department of Neurology (C.K., S.M.)
| | - H-Y Chen
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - J W Gordon
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - S Raber
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics
| | - C Hoffman
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics
| | - Y Kim
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - K Okamoto
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - D B Vigneron
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.).,Bioengineering and Therapeutic Sciences (D.B.V.).,Neurological Surgery (D.B.V., M.P., S.M.).,UCSF/UC Berkeley Joint Graduate Group in Bioengineering (D.B.V., J.M.L., D.X.), University of California, San Francisco, San Francisco, California
| | - J M Lupo
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.).,UCSF/UC Berkeley Joint Graduate Group in Bioengineering (D.B.V., J.M.L., D.X.), University of California, San Francisco, San Francisco, California
| | - M Prados
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics.,Neurological Surgery (D.B.V., M.P., S.M.)
| | - Y Li
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.)
| | - D Xu
- From the Departments of Radiology and Biomedical Imaging (A.W.A., H.-Y.C., J.W.G., Y.K., K.O., D.B.V., J.M.L., Y.L., D.X.) .,UCSF/UC Berkeley Joint Graduate Group in Bioengineering (D.B.V., J.M.L., D.X.), University of California, San Francisco, San Francisco, California
| | - S Mueller
- Division of Hematology/Oncology (C.K., S.R., C.H., M.P., S.M.), Department of Pediatrics.,Department of Neurology (C.K., S.M.).,Neurological Surgery (D.B.V., M.P., S.M.)
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15
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Ryu JW, Jung J, Park K, Lee S, Park I, Kim WJ, Kim DS. Characterization of sexual size dimorphism and sex-biased genes expression profile in the olive flounder. Mol Biol Rep 2020; 47:8317-8324. [PMID: 32981011 DOI: 10.1007/s11033-020-05843-3] [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: 07/27/2020] [Accepted: 09/11/2020] [Indexed: 10/23/2022]
Abstract
Sexual size dimorphism (SSD) is a widespread phenomenon in fish species, including in the olive flounder. Although it is well established that female olive flounders acquire more bone mass than males, the underlying mechanism and timing of this SSD remains controversial. Here, the gene expression profiles of adult male and female olive flounder fish were explored to better understand the SSD mechanisms. Using RNA sequencing, a total of 4784 sex-biased differentially expressed genes (DEGs) in the fin with asymptotic growth after maturity were identified, among which growth-related factors were found. Gene ontology and pathway enrichment studies were performed to predict potential SSD-related genes and their functions. According to functional analysis, negative regulation of cell proliferation was significantly enriched in males, and anabolism related genes were highly expressed in females. In addition, pathway analysis using the Kyoto Encyclopedia of Genes and Genomes database revealed that five sexual dimorphism-related candidate genes (bambia, smurf1, dvl2, cul1a, and dvl3) were enriched in osteogenesis-contributing pathways. These results suggest that these five candidate genes may be relevant for skeletal development in olive flounders. Altogether, this study adds new knowledge for a better understanding of SSD-related growth traits in olive flounder, which can be used for enhancing aquaculture productivity with reduced production costs.
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Affiliation(s)
- Jea-Woon Ryu
- Department of Environmental Disease Research Centers, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea
| | - Jaeeun Jung
- Department of Environmental Disease Research Centers, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea
| | - Kunhyang Park
- Department of Core Facility Management Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea
| | - Sugi Lee
- Department of Environmental Disease Research Centers, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea.,Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea
| | - Ilkyu Park
- Department of Environmental Disease Research Centers, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea.,Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea
| | - Woo-Jin Kim
- Genetics and Breeding Research Center, National Institute of Fisheries Science (NIFS), Geojesi, 53334, Korea.
| | - Dae-Soo Kim
- Department of Environmental Disease Research Centers, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Korea. .,Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Korea.
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16
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Lee S, Jung J, Park I, Park K, Kim DS. A deep learning and similarity-based hierarchical clustering approach for pathological stage prediction of papillary renal cell carcinoma. Comput Struct Biotechnol J 2020; 18:2639-2646. [PMID: 33033583 PMCID: PMC7533347 DOI: 10.1016/j.csbj.2020.09.029] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/16/2020] [Accepted: 09/16/2020] [Indexed: 12/20/2022] Open
Abstract
Papillary renal cell carcinoma (pRCC), which accounts for 10–15% of renal cell carcinomas, is the second most frequent renal cell carcinoma. pRCC patient classification is difficult because of disease heterogeneity, histologic subtypes, and variations in both disease progression and patient outcomes. Nevertheless, symptom-based patient classification is indispensable in deciding treatment options. Here we introduce a prediction method for distinguishing pRCC pathological tumour stages using deep learning and similarity-based hierarchical clustering approaches. Differentially expressed genes (DEGs) were identified from gene expression data of pRCC patients retrieved from TCGA. Thirty-three of these genes were distinguished based on expression in early or late stage pRCC using the Wilcoxon rank sum test, confidence interval, and LASSO regression. Then, a deep learning model was constructed to predict tumour progression with an accuracy of 0.942 and area under curve of 0.933. Furthermore, pathological sub-stage information with an accuracy of 0.857 was obtained via similarity-based hierarchical clustering using 18 DEGs between stages I and II, and 11 DEGs between stages III and IV, identified through Wilcoxon rank sum test and quantile approach. Additionally, we offer this classification process as an R function. This is the first report of a model distinguishing the pathological tumour stages of pRCC using deep learning and similarity-based hierarchical clustering methods. Our findings are potentially applicable for improving early detection and treatment of pRCC and establishing a clearer classification of the pathological stages in other tumours.
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Affiliation(s)
- Sugi Lee
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
- Department of Environmental Disease Research Centers, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Jaeeun Jung
- Department of Environmental Disease Research Centers, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Ilkyu Park
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
- Department of Environmental Disease Research Centers, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Kunhyang Park
- Department of Core Facility Management Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Dae-Soo Kim
- Department of Bioinformatics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
- Department of Environmental Disease Research Centers, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, Republic of Korea
- Corresponding author at: Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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17
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McCulloch AT, Park I, Wright DL, Buchanan JJ. Off-line learning in a rhythmic bimanual task: early feedback dependency is reduced over wakefulness. Psychol Res 2020; 85:1503-1514. [PMID: 32367224 DOI: 10.1007/s00426-020-01347-8] [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] [Received: 04/08/2019] [Accepted: 04/17/2020] [Indexed: 10/24/2022]
Abstract
Research has supported two distinct forms of motor skill consolidation that can occur between practice sessions: (1) off-line learning, and (2) memory stabilization. Off-line learning describes performance improvement between practice sessions that is above the gain observed at the end of practice, while memory stabilization describes a gain in performance that is maintained between practice sessions. This study used a Lissajous plot to provide concurrent feedback to train participants to produce a 90° relative phase between the index fingers (flexion/extension motion). Significant improvements in performance emerged after ten trials (5 min) of practice. At the end of training, participants were divided into two delay interval groups before retesting, 2-h and 6-h. The retesting session started with participants performing an interference task (10 trials, 5 min) that required training on a 45° relative phase between the fingers with concurrent feedback from the Lissajous plot. When training with the interference task was completed participants were retested with the 90° relative phase without the Lissajous plot feedback. In the retest of the 90° pattern, a performance loss was found in the 2-h delay group, whereas the 6-h delay group maintained the end of practice performance level. Maintenance of the same level of performance without the Lissajous plot represents memory stabilization of the initially trained 90° pattern. The findings are discussed within the context of current positions regarding procedural consolidation and the coordination dynamics framework wherein action and perception are linked through the informational nature of relative phase.
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Affiliation(s)
- A T McCulloch
- Department of Health and Kinesiology, Perception-Action Dynamics Lab, Texas A&M University, College Station, TX, USA
| | - I Park
- Department of Health and Kinesiology, Perception-Action Dynamics Lab, Texas A&M University, College Station, TX, USA
| | - D L Wright
- Department of Health and Kinesiology, Perception-Action Dynamics Lab, Texas A&M University, College Station, TX, USA
| | - John J Buchanan
- Department of Health and Kinesiology, Perception-Action Dynamics Lab, Texas A&M University, College Station, TX, USA.
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18
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Oh YS, Lee J, Choi DY, Lee H, Kang K, Yoo S, Park I, Sung HJ. Selective multi-nanosoldering for fabrication of advanced solution-processed micro/nanoscale metal grid structures. Sci Rep 2020; 10:6782. [PMID: 32321964 PMCID: PMC7176656 DOI: 10.1038/s41598-020-63695-0] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 03/29/2020] [Indexed: 11/16/2022] Open
Abstract
Solution-processed metal grid transparent conductors with low sheet resistance, high optical transmittance and good mechanical flexibility have great potential for use in flexible optoelectronic devices. However, there are still remaining challenges to improve optoelectrical properties and electromechanical stability of the metallic structures due to random loose packings of nanoparticles and the existence of many pores. Here we introduce a selective multi-nanosoldering method to generate robust metallic layers on the thin metal grid structures (< a thickness of 200 nm), which are generated via self-pining assisted direct inking of silver ions. The selective multi-nanosoldering leads to lowering the sheet resistance of the metal grid transparent conductors, while keeping the optical transmittance constant. Also, it reinforces the electromechanical stability of flexible metal grid transparent conductors against a small bending radius or a repeated loading. Finally, organic light-emitting diodes based on the flexible metal grid transparent conductors are demonstrated. Our approach can open a new route to enhance the functionality of metallic structures fabricated using a variety of solution-processed metal patterning methods for next-generation optoelectronic and micro/nanoelectronic applications.
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Affiliation(s)
- Y S Oh
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - J Lee
- School of Electrical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - D Y Choi
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - H Lee
- School of Electrical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - K Kang
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - S Yoo
- School of Electrical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea
| | - I Park
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea.
| | - H J Sung
- Department of Mechanical Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Korea.
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19
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Lee J, Cho Y, Park I. Heart Transplantation Bridged by Extracorporeal Life Support in the Korean Adults: A 15 Year Single Center Experience. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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20
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Myung JW, Kim JH, Cho J, Park I, Kim HY, Beom JH. Contrast-Induced Acute Kidney Injury in Radiologic Management of Acute Ischemic Stroke in the Emergency Setting. AJNR Am J Neuroradiol 2020; 41:632-636. [PMID: 32165364 DOI: 10.3174/ajnr.a6472] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 02/05/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE The use of invasive cerebral angiography with CTA for active treatment of patients with suspected ischemic strokes has been increasing recently. This study aimed to identify the incidence of postcontrast acute kidney injury using baseline renal function when CTA and cerebral angiography were performed sequentially. MATERIALS AND METHODS This retrospective observational study evaluated adults (18 years of age or older) with ischemic stroke who underwent CTA and cerebral angiography sequentially between 2010 and 2018. The incidence of postcontrast acute kidney injury was determined using the baseline estimated glomerular filtration rate. The value of the baseline estimated glomerular filtration rate at which the occurrence of postcontrast acute kidney injury increased was also determined. RESULTS Postcontrast acute kidney injury occurred in 57/601 (9.5%) patients. Those with a baseline estimated glomerular filtration rate of <30 mL/min/1.73 m2 showed a higher incidence of acute kidney injury. Age, chronic kidney disease, medication (nonsteroidal anti-inflammatory drugs, angiotensin-converting enzyme inhibitors, angiotensin II receptor blockers, β blockers, statins, and insulin) use following contrast media exposure, and serum albumin affected the incidence of postcontrast acute kidney injury. The incidence of postcontrast acute kidney injury increased when the baseline estimated glomerular filtration rate was <43 mL/min/1.73 m2. CONCLUSIONS Patients with low baseline renal function had the highest incidence of postcontrast acute kidney injury after CTA and cerebral angiography, but no fatal adverse effects were documented. Thus, patients suspected of having a stroke should be actively managed with respect to neurovascular function.
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Affiliation(s)
- J W Myung
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.)
| | - J H Kim
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.)
| | - J Cho
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.)
| | - I Park
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.)
| | - H Y Kim
- Biostatistics Collaboration Unit, Department of Biomedical Systems Informatics (H.Y.K.), Yonsei University College of Medicine, Seoul, Republic of Korea
| | - J H Beom
- From the Department of Emergency Medicine (J.W.M., J.H.K., J.C., I.P., J.H.B.),
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21
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Seol J, Fujii Y, Park I, Yoko S, Kawana F, Yajima K, Fukusumi S, Okura T, Satoh M, Tokuyama K, Kokubo T, Yanagisawa M. Different Effects of orexin receptor antagonist and gabaa agonist on physical and cognitive functions after forced awakening. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Park I, Jennifer C, Michael G, David A, Claudia M. Functional Diversity Of Vascular Macrophages In Murine Atherosclerosis. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Han S, Park I, Chang S, Na J. 991 Deep neural networks empower medical professionals in diagnosing skin cancer and predicting treatment options for general skin disorders. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.1067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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24
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Kim Y, Kim E, Ahn H, Park I, Lee SC, Hwang I, Sym S, Shin D. Prognostic significance of CT-determined sarcopenia in patients with advanced gastric cancer treated with chemotherapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy432.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Kim T, Gwak G, Chung M, Kim J, Park I, Um E, Han J, Lee A. Multicenter trial for safety and toxicity of a nanoparticle docetaxel formulation in breast cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy426.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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26
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Ahn H, Kim Y, Kim E, Park K, Park I, Sym S, Park S, Shin D. A pilot study of exercise intervention during chemotherapy in patients with metastatic cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy444.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Park JH, Kim E, Park K, Kang S, Ahn H, Kim Y, Park I, Sym S, Shin D. A pilot study of exercise intervention in patients with metastatic cancer: Feasibility, safety, and patient reported outcome. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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28
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Byun J, Jung H, Bae WK, Lee HJ, Park S, Kim H, Maeng C, Park I, Sohn B, Kim J, Lee K, Im D, Kim J, Jang H, Kim S. Comparative effectiveness of neoadjuvant chemotherapy followed by cystectomy versus cystectomy followed by adjuvant chemotherapy versus palliative chemotherapy versus cystectomy for node-positive bladder cancer: A retrospective analysis: KCSG GU 17-03. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy283.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Yeo J, Ahn H, Park I, Kim Y, Sym S, Cho E, Shin D. Left ventricular ejection fraction (LVEF) change for the first 6 months predicts development of trastuzumab-related cardiotoxicity in patients with breast cancer: An implication for the more efficient cardiac surveillance. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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30
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Choi JH, Han H, Bae YG, Hwang ST, Kim HY, Park I, Kim SM, Choe YH, Moon YJ. P4629Computationally simulated fractional flow reserve from coronary computed tomography angiography based on fractional myocardial mass. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4629] [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.-H Choi
- Samsung Medical Center, Seoul, Korea Republic of
| | - H Han
- Korea University, Seoul, Korea Republic of
| | - Y.-G Bae
- Korea University, Seoul, Korea Republic of
| | - S.-T Hwang
- Korea University, Seoul, Korea Republic of
| | - H.-Y Kim
- Chonnam National University Hospital, Gwangju, Korea Republic of
| | - I Park
- Samsung Medical Center, Seoul, Korea Republic of
| | - S.-M Kim
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y.-H Choe
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y.-J Moon
- Korea University, Seoul, Korea Republic of
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31
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Choi JH, Bae YG, Hwang ST, Han H, Kim SM, Kim HY, Park I, Lee JM, Moon YJ. P1711Non-invasive coronary physiology based on computational analysis of intracoronary transluminal attenuation gradient. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1711] [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)
- J.-H Choi
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y.-G Bae
- Korea University, Seoul, Korea Republic of
| | - S.-T Hwang
- Korea University, Seoul, Korea Republic of
| | - H Han
- Korea University, Seoul, Korea Republic of
| | - S.-M Kim
- Samsung Medical Center, Seoul, Korea Republic of
| | - H.-Y Kim
- Chonnam National University Hospital, Gwangju, Korea Republic of
| | - I Park
- Samsung Medical Center, Seoul, Korea Republic of
| | - J.-M Lee
- Samsung Medical Center, Seoul, Korea Republic of
| | - Y.-J Moon
- Korea University, Seoul, Korea Republic of
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32
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Park I, Choi JH, Kim EK, Kim SM, Yang JH, Song YB, Hahn JY, Choi SH, Gwon HC, Lee SH, Choi YH, Oh JK. P1790Non-invasive identification of coronary collateral vessels by coronary computed tomography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1790] [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)
- I Park
- International ST.Mary's Hospital, Department of Internal medicine, Division of Cardiology, Incheon, Korea Republic of
| | - J H Choi
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - E K Kim
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S M Kim
- Samsung Medical Center, Department of Radiology, Seoul, Korea Republic of
| | - J H Yang
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - Y B Song
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - J Y Hahn
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S H Choi
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - H C Gwon
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - S H Lee
- Samsung Medical Center, Cardiology, Seoul, Korea Republic of
| | - Y H Choi
- Samsung Medical Center, Department of Radiology, Seoul, Korea Republic of
| | - J K Oh
- Mayo Clinic, Department of Internal medicine, Rochester, United States of America
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33
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Park I, Pasquetti T, Malheiros RD, Ferket PR, Kim SW. Effects of supplemental L-methionine on growth performance and redox status of turkey poults compared with the use of DL-methionine. Poult Sci 2018; 97:102-109. [PMID: 29077910 PMCID: PMC5850274 DOI: 10.3382/ps/pex259] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [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: 08/15/2016] [Accepted: 09/03/2017] [Indexed: 01/11/2023] Open
Abstract
This study was conducted to test the effects of dietary supplementation of feed grade L-Met on growth performance and redox status of turkey poults compared with the use of conventional DL-Met. Three hundred and eighty five newly hatched turkey poults were weighed and allotted to 5 treatments in a completely randomized design and the birds were fed dietary treatments for 28 d, including a basal diet (BD), the BD + 0.17 or 0.33% DL-Met or L-Met (representing 60, 75, and 90% of the requirement by National Research Council (NRC) for S containing AA, respectively). Increasing Met supplementation from 0 to 0.33% increased (P < 0.05) weight gain (690 to 746 g) and feed intake (1,123 to 1,248 g) of turkey poults. Supplementing L-Met tended (P = 0.053) to reduce feed to gain ratio (1.70 to 1.63) compared with DL-Met. The relative bioavailability of L-Met to DL-Met was 160% based on a multilinear regression analysis of weight gain. Supplementing Met regardless of its sources decreased (P < 0.05) malondialdehyde (3.29 to 2.47 nmol/mg protein) in duodenal mucosa compared with birds in the BD. Supplementing L-Met tended (P = 0.094) to decrease malondialdehyde (1.27 to 1.16 nmol/mg protein) and increase glutathione (3.21 to 3.45 nmol/mg protein) in the liver compared with DL-Met. Total antioxidant capacity, protein carbonyl, and morphology of duodenum and jejunum were not affected by Met sources. In conclusion, dietary supplementation of 0.33% Met to a diet with S containing AA meeting 60% of the NRC requirement enhanced weight gain, feed intake, and redox status by reducing oxidative stress in the gut and liver of turkey poults during the first 28 d of age. Use of L-Met tended to enhance feed efficiency and was more effective in reducing oxidative stress and increasing glutathione in the liver compared with the use of DL-Met. The use of L-Met as a source of Met replacing DL-Met seems to be beneficial to turkey poults during the first 28 d of age.
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Affiliation(s)
- I Park
- Department of Animal Science
| | - T Pasquetti
- Department of Animal Science, North Carolina State University, Raleigh 27695.,Prestage Department of Poultry Science, North Carolina State University, Raleigh 27695
| | - R D Malheiros
- Prestage Department of Poultry Science, North Carolina State University, Raleigh 27695
| | - P R Ferket
- Prestage Department of Poultry Science, North Carolina State University, Raleigh 27695
| | - S W Kim
- Department of Animal Science, North Carolina State University, Raleigh 27695
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Park I, Jung S, Seo Y, Oh S, Lee K, Kim S, Lee Y, Kim S. 0982 Differential Role of Sleep Disturbance and Stress Level on Depressive Symptoms and Anxiety. Sleep 2018. [DOI: 10.1093/sleep/zsy061.981] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- I Park
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - S Jung
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - Y Seo
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - S Oh
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - K Lee
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - S Kim
- Gangneung Asan Hospital, Gangwon-do, KOREA, REPUBLIC OF
| | - Y Lee
- Seoul National University Hospital, Seoul, Republic of Korea, KOREA, REPUBLIC OF
| | - S Kim
- Samsung Medical Center, Seoul, KOREA, REPUBLIC OF
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Lim SY, Choi M, Baek JY, Park I. Moderating effect of synthesized docosahexaenoic acid-enriched phosphatidylcholine on production of Th1 and Th2 cytokine in lipopolysaccharide-induced inflammation. Asian Pac J Trop Biomed 2018. [DOI: 10.4103/2221-1691.237076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Abbaneo D, Abbas M, Abbrescia M, Abi Akl M, Aboamer O, Acosta D, Ahmad A, Ahmed W, Aleksandrov A, Altieri P, Asawatangtrakuldee C, Aspell P, Assran Y, Awan I, Bally S, Ban Y, Banerjee S, Barashko V, Barria P, Bencze G, Beni N, Benussi L, Bhopatkar V, Bianco S, Bos J, Bouhali O, Braghieri A, Braibant S, Buontempo S, Calabria C, Caponero M, Caputo C, Cassese F, Castaneda A, Cauwenbergh S, Cavallo F, Celik A, Choi M, Choi S, Christiansen J, Cimmino A, Colafranceschi S, Colaleo A, Conde Garcia A, Czellar S, Dabrowski M, De Lentdecker G, De Oliveira R, de Robertis G, Dildick S, Dorney B, Endroczi G, Errico F, Fenyvesi A, Ferry S, Furic I, Giacomelli P, Gilmore J, Golovtsov V, Guiducci L, Guilloux F, Gutierrez A, Hadjiiska R, Hauser J, Hoepfner K, Hohlmann M, Hoorani H, Iaydjiev P, Jeng Y, Kamon T, Karchin P, Korytov A, Krutelyov S, Kumar A, Kim H, Lee J, Lenzi T, Litov L, Loddo F, Madorsky A, Maerschalk T, Maggi M, Magnani A, Mal P, Mandal K, Marchioro A, Marinov A, Majumdar N, Merlin J, Mitselmakher G, Mohanty A, Mohapatra A, Molnar J, Muhammad S, Mukhopadhyay S, Naimuddin M, Nuzzo S, Oliveri E, Pant L, Paolucci P, Park I, Passeggio G, Pavlov B, Philipps B, Piccolo D, Postema H, Puig Baranac A, Radi A, Radogna R, Raffone G, Ranieri A, Rashevski G, Riccardi C, Rodozov M, Rodrigues A, Ropelewski L, RoyChowdhury S, Ryu G, Ryu M, Safonov A, Salva S, Saviano G, Sharma A, Sharma A, Sharma R, Shah A, Shopova M, Sturdy J, Sultanov G, Swain S, Szillasi Z, Talvitie J, Tatarinov A, Tuuva T, Tytgat M, Vai I, Van Stenis M, Venditti R, Verhagen E, Verwilligen P, Vitulo P, Volkov S, Vorobyev A, Wang D, Wang M, Yang U, Yang Y, Yonamine R, Zaganidis N, Zenoni F, Zhang A. Quality control for the first large areas of triple-GEM chambers for the CMS endcaps. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201817403003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The CMS Collaboration plans to equip the very forward muon system with triple-GEM detectors that can withstand the environment of the High-Luminosity LHC. This project is at the final stages of R&D and moving to production. An unprecedented large area of several 100 m2 are to be instrumented with GEM detectors which will be produced in six different sites around the world. A common construction and quality control procedure is required to ensure the performance of each detector. The quality control steps will include optical inspection, cleaning and baking of all materials and parts used to build the detector, leakage current tests of the GEM foils, high voltage tests, gas leak tests of the chambers and monitoring pressure drop vs. time, gain calibration to know the optimal operation region of the detector, gain uniformity tests, and studying the efficiency, noise and tracking performance of the detectors in a cosmic stand using scintillators.
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Abbaneo D, Abbas M, Abbrescia M, Abi Akl M, Aboamer O, Acosta D, Ahmad A, Ahmed W, Aleksandrov A, Altieri P, Asawatangtrakuldee C, Aspell P, Assran Y, Awan I, Bally S, Ban Y, Banerjee S, Barashko V, Barria P, Bencze G, Beni N, Benussi L, Bhopatkar V, Bianco S, Bos J, Bouhali O, Braghieri A, Braibant S, Buontempo S, Calabria C, Caponero M, Caputo C, Cassese F, Castaneda A, Cauwenbergh S, Cavallo F, Celik A, Choi M, Choi S, Christiansen J, Cimmino A, Colafranceschi S, Colaleo A, Conde Garcia A, Czellar S, Dabrowski M, De Lentdecker G, De Oliveira R, de Robertis G, Dildick S, Dorney B, Endroczi G, Errico F, Fenyvesi A, Ferrini M, Ferry S, Furic I, Giacomelli P, Gilmore J, Golovtsov V, Guiducci L, Guilloux F, Gutierrez A, Hadjiiska R, Hauser J, Hoepfner K, Hohlmann M, Hoorani H, Iaydjiev P, Jeng Y, Kamon T, Karchin P, Korytov A, Krutelyov S, Kumar A, Kim H, Lalli A, Lee J, Lenzi T, Litov L, Loddo F, Madorsky A, Maerschalk T, Maggi M, Magnani A, Mal P, Mandal K, Marchioro A, Marinov A, Majumdar N, Merlin J, Mitselmakher G, Mohanty A, Mohapatra A, Molnar J, Muhammad S, Mukhopadhyay S, Naimuddin M, Nuzzo S, Oliveri E, Pant L, Paolucci P, Park I, Passamonti L, Passeggio G, Pavlov B, Philipps B, Piccolo D, Pierluigi D, Postema H, Primavera F, Puig Baranac A, Radi A, Radogna R, Raffone G, Ranieri A, Rashevski G, Riccardi C, Rodozov M, Rodrigues A, Ropelewski L, RoyChowdhury S, Russo A, Ryu G, Ryu M, Safonov A, Salva S, Saviano G, Sharma A, Sharma A, Sharma R, Shah A, Shopova M, Sturdy J, Sultanov G, Swain S, Szillasi Z, Talvitie J, Tatarinov A, Tuuva T, Tytgat M, Valente M, Vai I, Van Stenis M, Venditti R, Verhagen E, Verwilligen P, Vitulo P, Volkov S, Vorobyev A, Wang D, Wang M, Yang U, Yang Y, Yonamine R, Zaganidis N, Zenoni F, Zhang A. A novel application of Fiber Bragg Grating (FBG) sensors in MPGD. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201817403002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We present a novel application of Fiber Bragg Grating (FBG) sensors in the construction and characterisation of Micro Pattern Gaseous Detector (MPGD), with particular attention to the realisation of the largest triple (Gas electron Multiplier) GEM chambers so far operated, the GE1/1 chambers of the CMS experiment at LHC. The GE1/1 CMS project consists of 144 GEM chambers of about 0.5 m2 active area each, employing three GEM foils per chamber, to be installed in the forward region of the CMS endcap during the long shutdown of LHC in 2108-2019. The large active area of each GE1/1 chamber consists of GEM foils that are mechanically stretched in order to secure their flatness and the consequent uniform performance of the GE1/1 chamber across its whole active surface. So far FBGs have been used in high energy physics mainly as high precision positioning and re-positioning sensors and as low cost, easy to mount, low space consuming temperature sensors. FBGs are also commonly used for very precise strain measurements in material studies. In this work we present a novel use of FBGs as flatness and mechanical tensioning sensors applied to the wide GEM foils of the GE1/1 chambers. A network of FBG sensors have been used to determine the optimal mechanical tension applied and to characterise the mechanical tension that should be applied to the foils. We discuss the results of the test done on a full-sized GE1/1 final prototype, the studies done to fully characterise the GEM material, how this information was used to define a standard assembly procedure and possible future developments.
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Park I, Kim YS, Sym SJ, Ahn HK, Kim KK, Park YH, Lee JN, Shin DB. Metastasectomy for recurrent or metastatic biliary tract cancers: A single center experience. Indian J Cancer 2017; 54:57-62. [PMID: 29199665 DOI: 10.4103/0019-509x.219581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
PURPOSE To assess efficacy or long-term result of metastasectomy for recurrent or metastatic biliary tract carcinoma (BTC), we conducted a retrospective review of the outcomes of metastasectomy for recurrent or metastatic BTCs, comprising intrahepatic cholangiocellular carcinoma (IHCCC), proximal and distal common bile duct cancer (pCBDC and dCBDC), gallbladder cancer (GBC), and ampulla of Vater cancer (AoVC). PATIENTS AND METHODS The clinicopathological features and outcomes of BTC patients who underwent surgical resection for the primary and metastatic disease at the Gachon University Gil Medical Centre from 2003 to 2013 were reviewed retrospectively. RESULTS We found 19 eligible patients. Primary sites were GBC (seven patients, 37%), IHCCC (five patients, 26%), dCBDC (three patients, 16%), pCBDC (two patients, 11%), and AoVC (two patients, 11%). Eight patients (42%) had synchronous metastasis whereas 11 (58%) had metachronous metastasis. The most common metastatic site was liver (nine patients, 47%), lymph node (nine patients, 47%), and peritoneum (three patients, 16%). Nine patients (47%) achieved R0 resection, whereas four (21%) and six (32%) patients had R1 and R2 resection, respectively. With a median follow-up period of 26.7 months, the estimated median overall survival (OS) was 18.2 months (95% confidence interval, 13.6-22.9 months). Lower Eastern Cooperative Oncology Group performance status (P = 0.023), metachronous metastasis (P = 0.04), absence of lymph node metastasis (P = 0.009), lower numbers of metastatic organs (P < 0.001), normal postoperative CA19-9 level (P = 0.034), and time from diagnosis to metastasectomy more than 1 year (P = 0.019) were identified as prognostic factors for a longer OS after metastasectomy. CONCLUSIONS For recurrent or metastatic BTCs, metastasectomy can be a viable option for selected patients.
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Affiliation(s)
- I Park
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - Y S Kim
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - S J Sym
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - H K Ahn
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - K K Kim
- Department of Surgery, Gachon University Gil Medical Center, Incheon, Korea
| | - Y H Park
- Department of Surgery, Gachon University Gil Medical Center, Incheon, Korea
| | - J N Lee
- Department of Surgery, Gachon University Gil Medical Center, Incheon, Korea
| | - D B Shin
- Department of Internal Medicine, Division of Hematology-Oncology, Gachon University Gil Medical Center, Incheon, Korea
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Choi Y, Akazawa N, Nakamura Y, Park I, Tokuyama K, Maeda S. The effects of bright light exposure at night on circadian rhythms and energy metabolism. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Park J, Park SW, Cho SI, Park I, Kim YH, Park EY, Oh JK, Kim SJ, Park JH, Lim MK. Planning of national prospective study on tobacco behavior transition among adolescents in Korea. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx186.057] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- J Park
- Graduate School of Cancer Science and Policy, National Cancer Center, Daegu, South Korea
| | - SW Park
- Catholic University of Daegu, School of Medicine, Daegym, South Korea
| | - SI Cho
- Seoul National University, Seoul, South Korea
| | - I Park
- Pukyong National University, Busan, South Korea
| | - YH Kim
- Pukyong National University, Busan, South Korea
| | - EY Park
- National Cancer Center, Goyang, South Korea
| | - JK Oh
- Graduate School of Cancer Science and Policy, National Cancer Center, Daegu, South Korea
| | - SJ Kim
- National Cancer Center, Goyang, South Korea
| | - JH Park
- National Cancer Center, Goyang, South Korea
| | - MK Lim
- Graduate School of Cancer Science and Policy, National Cancer Center, Daegu, South Korea
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Park I, Lee K, Sun H, Kim J, Chi H, Kim S, Kim Y, Park J, Yoo C, Jo J. Effect of interval between ovulation trigger and oocyte aspiration in GnRH antagonist cycles. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sun H, Lee K, Park I, Kim J, Chi H, Kim S, Kim Y, Park J, Jo J. Does luteal phase support improve pregnancy outcome in natural frozen-thawed embryo transfer cycles? Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.1044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Park I, Choi J, Bae Y, Moon Y, Lee J, Yang J, Song Y, Hahn J, Choi S, Gwon H, Lee S. P853Non-invasive assessment of vessel-specific coronary blood flow by computational analysis of intracoronary transluminal attenuation gradient. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Duarte ME, Park I, Parnsen W, Zhou FX, Kim SW. 409 Effects of combinational use of xylanase and protease on growth performance and gut health of newly weaned pigs. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zheng L, Park I, Kim SW. 395 Effects of dietary lysophospholipid complex on apparent ileal digestibility of fatty acids, intestinal morphology and barrier function, and growth performance in nursery pigs. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.395] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chen H, Park I, Zhang S, Kim SW. 394 Effect of supplemental protease on growth performance, nutrient digestibility, and gut health in nursery pigs fed diets with corn or sorghum. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Park I, Parnsen W, Duarte ME, Yiannikouris A, Kim SW. 406 Effects of modified yeast cell wall extract on gut health and growth of newly weaned pigs under chronic dietary challenges of aflatoxin, deoxynivalenol, and fumonisin. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Parnsen W, Park I, Kim SW. 405 Functional difference of free L-Lysine and L-Lysine HCl on growth performances, intestinal health, and intestinal integrity in newly weaned pigs. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kim EY, Lee HY, Kim YS, Park I, Ahn HK, Cho EK, Jeong YM, Kim JH. Prognostic significance of cachexia score assessed by CT in male patients with small cell lung cancer. Eur J Cancer Care (Engl) 2017; 27. [PMID: 28426181 DOI: 10.1111/ecc.12695] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2017] [Indexed: 11/26/2022]
Abstract
To determine the prognostic significance of CT-determined cachexia scores (CSs) in 127 consecutive male small cell lung cancer (SCLC) patients, cross-sectional areas of muscle and fat tissues at the third lumbar vertebra (L3) were retrospectively measured on baseline CT images. CSs were determined based on the presence of sarcopenia and/or adipopenia. According to the presence of sarcopenia (L3 muscle index <55 cm2 /m2 , 86.8%) and adipopenia (L3 fat index <22 cm2 /m2 , 11.8%), CSs were defined as follows: CS2 (sarcopenia and adipopenia, 11.8%), CS1 (sarcopenia only, 74.8%) and CS0 (13.4%). CS2 was significantly related to lower body mass index (p < .001) and poor performance status (p = .002), and patients with CS2 had shorter OS than patients with CS1 or CS0 (median OS, 5.0 months vs. 8.9 months vs. 18.3 months; p = .007). Multivariable analysis revealed that CS was an independent prognostic factor of poor survival (HR, 1.99 for CS1 and 2.59 for CS2, p = .036 and .023, CS0 as a reference), along with extensive stage (p < .001), supportive care only (p < .001) and an elevated lactate dehydrogenase (p = .005). CT-determined CSs, based on the presence of sarcopenia and/or adipopenia, could be used to predict prognosis in male SCLC.
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Affiliation(s)
- E Y Kim
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Korea
| | - H Y Lee
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Korea
| | - Y S Kim
- Division of Hematology and Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - I Park
- Division of Hematology and Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - H K Ahn
- Division of Hematology and Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - E K Cho
- Division of Hematology and Oncology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Y M Jeong
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Korea
| | - J H Kim
- Department of Radiology, Gachon University Gil Medical Center, Incheon, Korea
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Kim SK, Park I, Hur N, Choe JH, Kim JH, Kim JS. Patterns, predictive factors and prognostic impact of multilevel metastasis in N1b papillary thyroid carcinoma. Br J Surg 2017; 104:857-867. [PMID: 28295219 DOI: 10.1002/bjs.10514] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/18/2016] [Accepted: 01/28/2017] [Indexed: 11/09/2022]
Abstract
BACKGROUND The patterns, predictive factors and prognostic impact of multilevel metastasis in patients with N1b papillary thyroid carcinoma (PTC) were investigated. METHODS A retrospective review of patients with N1b PTC from a tertiary referral centre in Korea who underwent unilateral modified radical neck dissection was undertaken. RESULTS Of 658 patients, multilevel metastasis was found in 73·9 per cent; the most common type was metastasis in two levels. Tumour size per 0·1-cm increment (adjusted odds ratio (OR) 1·33, 95 per cent c.i. 1·08 to 1·64), microscopic extrathyroidal extension (adjusted OR 1·72, 1·10 to 2·71), gross extrathyroidal extension (adjusted OR 2·35, 1·24 to 4·46), unilateral central lymph node metastasis (adjusted OR 2·45, 1·53 to 3·92) and bilateral central lymph node metastasis (adjusted OR 4·06, 2·29 to 7·18) were independent predictors of multilevel metastasis. Only four-level metastasis significantly increased the risk of overall locoregional recurrence (LRR) (adjusted hazard ratio (HR) 7·41, 95 per cent c.i. 2·20 to 24·53) and lateral neck LRR (adjusted HR 7·22, 1·82 to 28·65), compared with one-level metastasis. Two subgroup analyses were conducted, showing that only three-level metastasis including metastasis in level V significantly increased the risk of overall LRR (adjusted HR 5·66, 1·20 to 26·75). In addition, having level V metastasis was an independent predictor of both overall (adjusted HR 3·26, 1·72 to 6·18; P < 0·001) and lateral neck (adjusted HR 3·28, 1·50 to 7·16; P = 0·003) LRR. CONCLUSION Level V metastasis rather than multilevel metastasis itself is associated with an increased risk of LRR. Patients with N1b PTC and level V metastasis require risk restratification and meticulous follow-up.
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Affiliation(s)
- S K Kim
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - I Park
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - N Hur
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - J-H Choe
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - J-H Kim
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
| | - J S Kim
- Division of Breast and Endocrine Surgery, Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 135-710, South Korea
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