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Park JH, Kim TS, Jo HJ, Lee CM, Lee M, Kang CK, Choe PG, Park WB, Kim NJ. Reduction of blood culture contamination rates through simplified personal protective equipment in COVID-19 patient care setting. J Hosp Infect 2024; 147:219-220. [PMID: 38309667 DOI: 10.1016/j.jhin.2024.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Affiliation(s)
- J H Park
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - T S Kim
- Department of Laboratory Medicine, Seoul National University Hospital, Seoul, Republic of Korea; Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H J Jo
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - C M Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - M Lee
- Infection Control Office, Seoul National University Hospital, Seoul, Republic of Korea
| | - C K Kang
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - P G Choe
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Infection Control Office, Seoul National University Hospital, Seoul, Republic of Korea.
| | - W B Park
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - N J Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Infection Control Office, Seoul National University Hospital, Seoul, Republic of Korea
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Daniel SK, Sullivan KM, Dickerson LK, van den Bijgaart RJE, Utria AF, Labadie KP, Kenerson HL, Jiang X, Smythe KS, Campbell JS, Pierce RH, Kim TS, Riehle KJ, Yeung RS, Carter JA, Barry KC, Pillarisetty VG. Reversing immunosuppression in the tumor microenvironment of fibrolamellar carcinoma via PD-1 and IL-10 blockade. Sci Rep 2024; 14:5109. [PMID: 38429349 PMCID: PMC10907637 DOI: 10.1038/s41598-024-55593-6] [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: 10/26/2023] [Accepted: 02/26/2024] [Indexed: 03/03/2024] Open
Abstract
Fibrolamellar carcinoma (FLC) is a rare liver tumor driven by the DNAJ-PKAc fusion protein that affects healthy young patients. Little is known about the immune response to FLC, limiting rational design of immunotherapy. Multiplex immunohistochemistry and gene expression profiling were performed to characterize the FLC tumor immune microenvironment and adjacent non-tumor liver (NTL). Flow cytometry and T cell receptor (TCR) sequencing were performed to determine the phenotype of tumor-infiltrating immune cells and the extent of T cell clonal expansion. Fresh human FLC tumor slice cultures (TSCs) were treated with antibodies blocking programmed cell death protein-1 (PD-1) and interleukin-10 (IL-10), with results measured by cleaved caspase-3 immunohistochemistry. Immune cells were concentrated in fibrous stromal bands, rather than in the carcinoma cell compartment. In FLC, T cells demonstrated decreased activation and regulatory T cells in FLC had more frequent expression of PD-1 and CTLA-4 than in NTL. Furthermore, T cells had relatively low levels of clonal expansion despite high TCR conservation across individuals. Combination PD-1 and IL-10 blockade signficantly increased cell death in human FLC TSCs. Immunosuppresion in the FLC tumor microenvironment is characterized by T cell exclusion and exhaustion, which may be reversible with combination immunotherapy.
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Affiliation(s)
- S K Daniel
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - K M Sullivan
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - L K Dickerson
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - R J E van den Bijgaart
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - A F Utria
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - K P Labadie
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - H L Kenerson
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - X Jiang
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - K S Smythe
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - J S Campbell
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - R H Pierce
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - T S Kim
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - K J Riehle
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - R S Yeung
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - J A Carter
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA
| | - K C Barry
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - V G Pillarisetty
- Department of Surgery, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356410, Seattle, WA, 98195, USA.
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Lee T, Baek S, Lee J, Chung ES, Yun K, Kim TS, Oh J. A Deep Learning Driven Simulation Analysis of the Emotional Profiles of Depression Based on Facial Expression Dynamics. Clin Psychopharmacol Neurosci 2024; 22:87-94. [PMID: 38247415 PMCID: PMC10811404 DOI: 10.9758/cpn.23.1059] [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] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/31/2023] [Accepted: 04/10/2023] [Indexed: 01/23/2024]
Abstract
Objective : Diagnosis and assessment of depression rely on scoring systems based on questionnaires, either self-reported by patients or administered by clinicians, and observation of patient facial expressions during the interviews plays a crucial role in making impressions in clinical settings. Deep learning driven approaches can assist clinicians in the course of diagnosis of depression by recognizing subtle facial expressions and emotions in depression patients. Methods : Seventeen simulated patients who acted as depressed patients participated in this study. A trained psychiatrist structurally interviewed each participant with moderate depression in accordance with a prepared scenario and without depressive features. Interviews were video-recorded, and a facial emotion recognition algorithm was used to classify emotions of each frame. Results : Among seven emotions (anger, disgust, fear, happiness, neutral, sadness, and surprise), sadness was expressed in a higher proportion on average in the depression-simulated group compared to the normal group. Neutral and fear were expressed in higher proportions on average in the normal group compared to the normal group. The overall distribution of emotions between the two groups was significantly different (p < 0.001). Variance in emotion was significantly less in the depression-simulated group (p < 0.05). Conclusion : This study suggests a novel and practical approach to understand the emotional expression of depression patients based on deep learning techniques. Further research would allow us to obtain more perspectives on the emotional profiles of clinical patients, potentially providing helpful insights in making diagnosis of depression patients.
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Affiliation(s)
- Taekgyu Lee
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | | | - Jongseo Lee
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Eun Su Chung
- College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyongsik Yun
- Computation and Neural Systems, California Institute of Technology, Pasadena, CA USA
- Bio-Inspired Technologies and Systems, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jihoon Oh
- Department of Psychiatry, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Ryu S, Kang H, Jung HR, Yun H, Kang SH, Kim TS, Choi S, Kim JW, Lee JY, Kim JM, Jung SI, Yoon BH, Kim SW. COVID-19 vaccine acceptance and related behavioral and psychological characteristics in individuals with mental disorders in Korea. Front Psychiatry 2023; 14:1195103. [PMID: 37260761 PMCID: PMC10228693 DOI: 10.3389/fpsyt.2023.1195103] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 05/02/2023] [Indexed: 06/02/2023] Open
Abstract
Objective This study aimed to investigate COVID-19 vaccine acceptance and related factors in individuals with mental disorders in Korea. Methods We surveyed 572 individuals with mental disorders about their attitudes toward COVID-19 vaccination using a 7-item self-rating questionnaire on vaccine acceptance and hesitancy. We categorized the respondents into groups based on their level of vaccine acceptance using hierarchical clustering. In addition, we evaluated the respondents' vaccination status and trust in sources of information regarding COVID-19 vaccines, and assessed their psychological characteristics using the Patient Health Questionnaire-9, Gratitude Questionnaire-6, and Big Five Inventory-10. Results Clustering revealed three groups according to vaccine acceptance: 'totally accepting' (n= 246, 43.0%), 'somewhat accepting' (n= 184, 32.2%), and 'hesitant' (n= 142, 24.8%) groups. Three quarters of all participants, who belonged to the 'totally accepting' or 'somewhat accepting' groups, were willing to receive a COVID-19 vaccine despite concerns about its side effects. Individuals in the high vaccine acceptance group were older (F= 12.52, p< 0.001), more likely to receive the influenza vaccine regularly, and more likely to trust formal information sources. Additionally, they had higher levels of gratitude (F= 21.00, p< 0.001) and agreeableness (F= 4.50, p= 0.011), and lower levels of depression (χ2= 11.81, p= 0.003) and neuroticism (F= 3.71, p= 0.025). Conclusion The present study demonstrated that individuals with mental disorders were generally willing to receive COVID-19 vaccination. However, they weighed its need and effectiveness against potential side effects before coming to a decision. It is important to understand the behavioral and psychological characteristics associated with vaccine acceptance, to effectively communicate its importance to individuals with mental disorders.
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Affiliation(s)
- Seunghyong Ryu
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Hangoeunbi Kang
- Department of Psychiatry, Naju National Hospital, Naju, Republic of Korea
| | - Ha-Ran Jung
- Department of Psychiatry, Naju National Hospital, Naju, Republic of Korea
| | - Hyunju Yun
- Department of Psychiatry, Naju National Hospital, Naju, Republic of Korea
- Gokseonggun Mental Health Center, Gokseong, Republic of Korea
| | - Shi-Hyun Kang
- Department of Psychiatry, Seoul National Hospital, Seoul, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
| | - Seunggi Choi
- Mindlink, Gwangju Bukgu Mental Health Center, Gwangju, Republic of Korea
| | - Ju-Wan Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Ju-Yeon Lee
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Jae-Min Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Sook-In Jung
- Department of Infectious Diseases, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Bo-Hyun Yoon
- Department of Psychiatry, Naju National Hospital, Naju, Republic of Korea
| | - Sung-Wan Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Republic of Korea
- Mindlink, Gwangju Bukgu Mental Health Center, Gwangju, Republic of Korea
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Shin JH, Seo BG, Lee IW, Kim HJ, Seo EC, Lee KM, Jeon SB, Baek SK, Kim TS, Lee JH, Choi JW, Hwangbo C, Lee JH. Functional Characterization of Endothelial Cells Differentiated from Porcine Epiblast Stem Cells. Cells 2022; 11:1524. [PMID: 35563830 PMCID: PMC9104949 DOI: 10.3390/cells11091524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/24/2022] [Accepted: 04/29/2022] [Indexed: 12/12/2022] Open
Abstract
Endothelial cells (ECs), lining blood vessels' lumen, play an essential role in regulating vascular functions. As multifunctional components of vascular structures, pluripotent stem cells (PSCs) are the promising source for potential therapeutic applications in various vascular diseases. Our laboratory has previously established an approach for differentiating porcine epiblast stem cells (pEpiSCs) into ECs, representing an alternative and potentially superior cell source. However, the condition of pEpiSCs-derived ECs growth has yet to be determined, and whether pEpiSCs differentiate into functional ECs remained unclear. Changes in morphology, proliferation and functional endothelial marker were assessed in pEpiSCs-derived ECs in vitro. pEpiSCs-derived ECs were subjected to magnetic-activated cell sorting (MACS) to collect CD-31+ of ECs. We found that sorted ECs showed the highest proliferation rate in differentiation media in primary culture and M199 media in the subculture. Next, sorted ECs were examined for their ability to act as typical vascular ECs through capillary-like structure formation assay, Dil-acetylated low-density lipoprotein (Dil-Ac-LDL) uptake, and three-dimensional spheroid sprouting. Consequently, pEpiSCs-derived ECs function as typical vascular ECs, indicating that pEpiSC-derived ECs might be used to develop cell therapeutics for vascular disease.
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Affiliation(s)
- Joon-Hong Shin
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.S.); (I.-W.L.); (S.-B.J.); (S.-K.B.); (T.-S.K.)
- Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (B.-G.S.); (H.-J.K.); (E.-C.S.); (K.-M.L.)
| | - Bo-Gyeong Seo
- Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (B.-G.S.); (H.-J.K.); (E.-C.S.); (K.-M.L.)
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea
| | - In-Won Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.S.); (I.-W.L.); (S.-B.J.); (S.-K.B.); (T.-S.K.)
- Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (B.-G.S.); (H.-J.K.); (E.-C.S.); (K.-M.L.)
| | - Hyo-Jin Kim
- Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (B.-G.S.); (H.-J.K.); (E.-C.S.); (K.-M.L.)
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea
| | - Eun-Chan Seo
- Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (B.-G.S.); (H.-J.K.); (E.-C.S.); (K.-M.L.)
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea
| | - Kwang-Min Lee
- Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (B.-G.S.); (H.-J.K.); (E.-C.S.); (K.-M.L.)
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea
| | - Soo-Been Jeon
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.S.); (I.-W.L.); (S.-B.J.); (S.-K.B.); (T.-S.K.)
| | - Sang-Ki Baek
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.S.); (I.-W.L.); (S.-B.J.); (S.-K.B.); (T.-S.K.)
| | - Tae-Suk Kim
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.S.); (I.-W.L.); (S.-B.J.); (S.-K.B.); (T.-S.K.)
| | - Jeong-Hyung Lee
- Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon 24414, Korea;
| | - Jung-Woo Choi
- College of Animal Life Science, Kangwon National University, Chuncheon 24414, Korea;
| | - Cheol Hwangbo
- Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (B.-G.S.); (H.-J.K.); (E.-C.S.); (K.-M.L.)
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju 52828, Korea
| | - Joon-Hee Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Korea; (J.-H.S.); (I.-W.L.); (S.-B.J.); (S.-K.B.); (T.-S.K.)
- Institute of Agriculture & Life Science, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Korea
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Oh J, Hong H, Oh J, Kim TS. Decreased Health-Seeking Behaviors in People With Depressive Symptoms: The Korea National Health and Nutrition Examination Survey 2014, 2016, and 2018. Psychiatry Investig 2022; 19:117-124. [PMID: 35114783 PMCID: PMC8898606 DOI: 10.30773/pi.2021.0192] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 12/06/2021] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE The purpose of this study was to investigate the effects of depressive symptoms on health-seeking behaviors using the large epidemiological study data of the Korea National Health and Nutrition Examination (KNHANES). METHODS Data from the Korea National Health and Nutrition Examination Survey (KNHANES), which is a large-scale national survey, were used in this study. The Patient Health Questionnaire-9 (PHQ-9) was used to assess the depressive state of the participants. Specialized self-reported questionnaires that included questions about health-seeking behaviors were also performed. To examine the relationships between depression and health-seeking behaviors, complex sample logistic regression models with control for covariates were used. RESULTS There was a significant association between decreased health-seeking behaviors and depressive symptoms in adults (odds ratio [OR]: 3.11, 95% confidence interval [CI]: 2.44-3.96). The association was found to be especially strong in males (OR: 2.63, 95% CI: 1.69-4.10) versus in females (OR: 2.49, 95% CI: 1.90-3.27). With regard to age group, younger adults (19-44 years of age) showed the highest OR (OR: 3.07, 95% CI: 2.12-4.45). CONCLUSION Our findings support the idea that there is a significant association between health-seeking behaviors and depressive symptoms in the Korean population. These results suggest that individuals with decreased health-seeking behaviors could be evaluated for depressive symptoms.
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Affiliation(s)
- Jihye Oh
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyungsook Hong
- Department of Psychiatry, KARF St. Mary's Hospital, The Korean Alcohol Research Foundation, Goyang, Republic of Korea
| | - Jihoon Oh
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Baek SK, Jeon SB, Seo BG, Hwangbo C, Shin KC, Choi JW, An CS, Jeong MA, Kim TS, Lee JH. The Presence or Absence of Alkaline Phosphatase Activity to Discriminate Pluripotency Characteristics in Porcine Epiblast Stem Cell-Like Cells. Cell Reprogram 2021; 23:221-238. [PMID: 34227846 DOI: 10.1089/cell.2021.0014] [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] [Indexed: 11/13/2022] Open
Abstract
Porcine embryonic stem cells (pESCs) would provide potentials for agricultural- and biotechnological-related applications. However, authentic pESCs have not been established yet because standards for porcine stem cell-specific markers and culture conditions are not clear. Therefore, the present study reports attempts to derive pluripotent epiblast stem cells either from in vitro or in vivo derived porcine embryos. Nine epiblast cell lines (seven lines from Berkshire and two lines from Duroc) could only be isolated from day 9- to 9.5-old in vivo derived early conceptuses. Pluripotency features were analyzed in relation to the presence or absence of alkaline phosphatase (AP) activity. Interestingly, the mRNA expression of several marker genes for pluripotency or epiblast was different between putative epiblast stem cells of the two groups [AP-positive (+) pEpiSC-like cell 2 line and AP-negative (-) pEpiSC-like cell 8 line]. For example, expressions of OCT-3/4, NANOG, SOX2, c-MYC, FGF2, and NODAL in AP-negative (-) porcine epiblast stem cell (pEpiSC)-like cells were higher than those in AP-positive (+) pEpiSC-like cells. Expression of surface markers differed between the two groups to some extent. SSEA-1 was strongly expressed only in AP-negative (-) pEpiSC-like cells, whereas AP-positive (+) pEpiSC-like cells did not express. In addition, we report to have some differences in the in vitro differentiation capacity between AP-positive (+) and AP-negative (-) epiblast cell lines. Primary embryonic germ layer markers (cardiac actin, nestin, and GATA 6) and primordial germ cell markers (Dazl and Vasa) were strongly expressed in embryoid bodies (EBs) aggregated from AP-negative (-) pEpiSC-like cells, whereas EBs aggregated from AP-positive (+) pEpiSCs did not show expression of primary embryonic germ layers and primordial germ cell markers except GATA 6. These results indicate that pEpiSC-like cells display different pluripotency characteristics in relation to AP activity.
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Affiliation(s)
- Sang-Ki Baek
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Soo-Been Jeon
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Bo-Gyeong Seo
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Cheol Hwangbo
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Keum-Chul Shin
- Institute of Agriculture & Life Science, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Forest Environmental Resources, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Jung-Woo Choi
- College of Animal Life Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Chang-Seop An
- Gyeongsangnamdo Livestock Experiment Station, Sancheong, Republic of Korea
| | - Mi-Ae Jeong
- Gyeongsangnamdo Livestock Experiment Station, Sancheong, Republic of Korea
| | - Tae-Suk Kim
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Joon-Hee Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Institute of Agriculture & Life Science, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
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Jeon SB, Seo BG, Baek SK, Lee HG, Shin JH, Lee IW, Kim HJ, Moon SY, Shin KC, Choi JW, Kim TS, Lee JH, Hwangbo C. Endothelial Cells Differentiated from Porcine Epiblast Stem Cells. Cell Reprogram 2021; 23:89-98. [PMID: 33861642 DOI: 10.1089/cell.2020.0088] [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] [Indexed: 11/12/2022] Open
Abstract
Pluripotent stem cells (PSCs) have the ability of self-renewal that can retain the characteristics of the mother cell, and of pluripotency that can differentiate into several body types. PSCs typically include embryonic stem cells (ESCs) derived from the inner cell mass of the preimplantation embryo, and epiblast stem cells (EpiSCs) derived from the epiblast of postimplantation embryo. Although PSCs are able to be used by differentiation into endothelial cells as a potential treatment for vascular diseases, human ESCs and induced PSCs (iPSCs) are followed by ethical and safety issues. Pigs are anatomically and physiologically similar to humans. Therefore, the goal of this study was to establish an efficient protocol that differentiates porcine EpiSCs (pEpiSCs) into the endothelial cells for applying the treatment of human vascular diseases. As a result, alkaline phosphatase (AP)-negative (-) pEpiSCs cultured in endothelial cell growth basal medium-2 (EBM-2) differentiation medium in association with 50 ng/mL of vascular endothelial growth factor (VEGF) for 8 days were changed morphologically like the feature of endothelial cells, and expression of pluripotency-associated markers (OCT-3/4, NANOG, SOX2, and C-MYC) in porcine differentiated cells was significantly decreased (p < 0.05). Additionally, when pEpiSCs were cultured in EBM-2 + 50 ng/mL of VEGF, porcine differentiated cells represented a common endothelial cell marker positive (CD31+) but monocytes and lymphocytes marker negative (CD45-). Therefore, these results indicated that pEpiSCs cultured in EBM-2 + 50 ng/mL of VEGF culture condition were efficiently differentiated into endothelial cells for the treatment of blood vessel diseases.
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Affiliation(s)
- Soo-Been Jeon
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Bo-Gyeong Seo
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Geongsang National University, Jinju, Republic of Korea
| | - Sang-Ki Baek
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Developmental and Reproductive Toxicology Research Group, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Hyeon-Geun Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Institute of Agriculture and Life Science, and College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Joon-Hong Shin
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - In-Won Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Hyo-Jin Kim
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Geongsang National University, Jinju, Republic of Korea
| | - Sun Young Moon
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Geongsang National University, Jinju, Republic of Korea
| | - Keum-Chul Shin
- Institute of Agriculture and Life Science, and College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Department of Forest Environmental Resources, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Jung-Woo Choi
- Institute of Agriculture and Life Science, and College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Tae-Suk Kim
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Republic of Korea
| | - Joon-Hee Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea.,College of Animal Life Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Cheol Hwangbo
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea.,Division of Applied Life Science (BK21), PMBBRC and Research Institute of Life Sciences, Geongsang National University, Jinju, Republic of Korea
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9
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Park YJ, Kim SH, Kim TS, Lee SM, Cho BS, Seo CI, Kim HD, Kim J. Ribosomal protein S3 associates with the TFIIH complex and positively regulates nucleotide excision repair. Cell Mol Life Sci 2021; 78:3591-3606. [PMID: 33464383 PMCID: PMC11072392 DOI: 10.1007/s00018-020-03754-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 01/23/2020] [Revised: 12/14/2020] [Accepted: 12/29/2020] [Indexed: 10/22/2022]
Abstract
In mammalian cells, the bulky DNA adducts caused by ultraviolet radiation are mainly repaired via the nucleotide excision repair (NER) pathway; some defects in this pathway lead to a genetic disorder known as xeroderma pigmentosum (XP). Ribosomal protein S3 (rpS3), a constituent of the 40S ribosomal subunit, is a multi-functional protein with various extra-ribosomal functions, including a role in the cellular stress response and DNA repair-related activities. We report that rpS3 associates with transcription factor IIH (TFIIH) via an interaction with the xeroderma pigmentosum complementation group D (XPD) protein and complements its function in the NER pathway. For optimal repair of UV-induced duplex DNA lesions, the strong helicase activity of the TFIIH complex is required for unwinding damaged DNA around the lesion. Here, we show that XP-D cells overexpressing rpS3 showed markedly increased resistance to UV radiation through XPD and rpS3 interaction. Additionally, the knockdown of rpS3 caused reduced NER efficiency in HeLa cells and the overexpression of rpS3 partially restored helicase activity of the TFIIH complex of XP-D cells in vitro. We also present data suggesting that rpS3 is involved in post-excision processing in NER, assisting TFIIH in expediting the repair process by increasing its turnover rate when DNA is damaged. We propose that rpS3 is an accessory protein of the NER pathway and its recruitment to the repair machinery augments repair efficiency upon UV damage by enhancing XPD helicase function and increasing its turnover rate.
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Affiliation(s)
- Y J Park
- Lab of Biochemistry, Division of Life Sciences, Korea University, Seoul, 02841, Korea
| | - S H Kim
- Lab of Biochemistry, Division of Life Sciences, Korea University, Seoul, 02841, Korea
| | - T S Kim
- Lab of Biochemistry, Division of Life Sciences, Korea University, Seoul, 02841, Korea
| | - S M Lee
- Lab of Biochemistry, Division of Life Sciences, Korea University, Seoul, 02841, Korea
| | - B S Cho
- Lab of Biochemistry, Division of Life Sciences, Korea University, Seoul, 02841, Korea
| | - C I Seo
- Lab of Biochemistry, Division of Life Sciences, Korea University, Seoul, 02841, Korea
| | - H D Kim
- TechnoComplex Building, HAEL Lab, Korea University, Seoul, 02841, Korea
| | - J Kim
- Lab of Biochemistry, Division of Life Sciences, Korea University, Seoul, 02841, Korea.
- TechnoComplex Building, HAEL Lab, Korea University, Seoul, 02841, Korea.
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10
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Oh J, Nam H, Park S, Chae JH, Kim TS. Decreased cardiovascular death in schizophrenia patients treated with antipsychotics: A Korean national cohort study. Schizophr Res 2021; 228:417-424. [PMID: 33556675 DOI: 10.1016/j.schres.2021.01.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 09/29/2020] [Revised: 01/04/2021] [Accepted: 01/16/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Patients with schizophrenia have a reduced life expectancy, but the association between antipsychotic usage and cause of death is uncertain. METHODS The authors observed associations of antipsychotic usage with the mortality rate and cause of death in a population-based cohort of the Korean National Health Insurance Service database from 2003 to 2017. A total of 86,923 patients with schizophrenia were categorized by the total duration of antipsychotic prescription after schizophrenia diagnosis into treated (n = 77,139) and untreated (n = 9784) groups. The main outcome was all-cause mortality; causes of death included cardiovascular disease, pulmonary disease, diabetes, cancer, accident, suicide and homicide. RESULTS The numbers of all-cause deaths and deaths from individual causes were significantly lower in the antipsychotic-treated group than in the untreated group (all cases, p < 10-4). When adjusted for covariates (age, sex, income, body mass index, alcohol consumption, hypertension, cancer and cerebral stroke), mortality rates due to ischemic heart disease (hazard ratio, HR, 0.38 [95% CI, 0.18-0.77]) and stroke (HR, 0.39 [95% CI, 0.19-0.80]) were significantly lower in the antipsychotic-treated group. Among 4 atypical antipsychotics (olanzapine, risperidone, aripiprazole and quetiapine), only aripiprazole was associated with a decreased mortality risk relative to olanzapine (HR, 0.55 [95% CI, 0.32-0.96]). CONCLUSIONS Schizophrenia patients constantly prescribed antipsychotics had significantly lower rates of death from certain cardiovascular illnesses than untreated patients. Aripiprazole-treated schizophrenia was associated with a decreased risk of death compared with olanzapine-treated disease.
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Affiliation(s)
- Jihoon Oh
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea
| | - Hyewon Nam
- Hanmi Data Science Team, Seoul, Republic of Korea
| | - Sangmin Park
- Hanmi Data Science Team, Seoul, Republic of Korea
| | - Jeong-Ho Chae
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea, College of Medicine, Seoul, Republic of Korea.
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11
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Jung KI, Hong SY, Shin DY, Lee NY, Kim TS, Park CK. Attenuated Visual Function in Patients with Major Depressive Disorder. J Clin Med 2020; 9:jcm9061951. [PMID: 32580488 PMCID: PMC7356808 DOI: 10.3390/jcm9061951] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/14/2020] [Accepted: 06/18/2020] [Indexed: 11/16/2022] Open
Abstract
Background: We sought to investigate visual function, primarily, and structural changes in retinal ganglion cells, secondarily, in patients with major depressive disorder. Methods: A total of 50 normal participants and 49 patients with major depressive disorder were included in this cross-sectional study. The participants underwent 24–2 standard automated perimetry and spectral-domain optical coherence tomography. Results: The pattern standard deviation (PSD) in the visual field test was higher in the major depressive disorder patients than in the normal control subjects (p = 0.017). The patients with major depressive disorder showed reduced minimum ganglion cell–inner plexiform layer (GCIPL) thickness relative to the normal control participants (p = 0.015). The average score on the Hamilton Depression Rating scale showed a significant correlation with the PSD, minimum GCIPL thickness, and inferior GCIPL thickness (r = 0.265, p = 0.009; r = −0.239, p = 0.017; and r = −0.204, p = 0.043, respectively). The multivariate analysis of factors associated with PSD showed old age and a high Hamilton Depression Rating score to be relevant (p = 0.002 and 0.028, respectively). Conclusions: Visual function was decreased and the GCIPL thickness was reduced in major depressive disorder patients. The retinal neurodegenerative process in depression might be considered in patients with depression.
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Affiliation(s)
- Kyoung In Jung
- Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (K.I.J.); (S.-Y.H.); (D.Y.S.); (N.Y.L.)
- Department of Ophthalmology, Seoul St. Mary’s Hospital, Seoul 06591, Korea
| | - Seo-Yeon Hong
- Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (K.I.J.); (S.-Y.H.); (D.Y.S.); (N.Y.L.)
| | - Da Young Shin
- Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (K.I.J.); (S.-Y.H.); (D.Y.S.); (N.Y.L.)
- Department of Ophthalmology, Seoul St. Mary’s Hospital, Seoul 06591, Korea
| | - Na Young Lee
- Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (K.I.J.); (S.-Y.H.); (D.Y.S.); (N.Y.L.)
- Department of Ophthalmology, Eunpyung St. Mary’s Hospital, Seoul 03312, Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: (T.-S.K.); (C.K.P.); Tel.: +82-02-2258-6085 (T.-S.K.); +82-02-2258-6199 (C.K.P.); Fax: +82-02-594-3870 (T.-S.K.); +82-02-599-7405 (C.K.P.)
| | - Chan Kee Park
- Department of Ophthalmology, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (K.I.J.); (S.-Y.H.); (D.Y.S.); (N.Y.L.)
- Department of Ophthalmology, Seoul St. Mary’s Hospital, Seoul 06591, Korea
- Correspondence: (T.-S.K.); (C.K.P.); Tel.: +82-02-2258-6085 (T.-S.K.); +82-02-2258-6199 (C.K.P.); Fax: +82-02-594-3870 (T.-S.K.); +82-02-599-7405 (C.K.P.)
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12
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Zang Y, Song JH, Oh SH, Kim JW, Lee MN, Piao X, Yang JW, Kim OS, Kim TS, Kim SH, Koh JT. Targeting NLRP3 Inflammasome Reduces Age-Related Experimental Alveolar Bone Loss. J Dent Res 2020; 99:1287-1295. [PMID: 32531176 DOI: 10.1177/0022034520933533] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The cause of chronic inflammatory periodontitis, which leads to the destruction of periodontal ligament and alveolar bone, is multifactorial. An increasing number of studies have shown the clinical significance of NLRP3-mediated low-grade inflammation in degenerative disorders, but its causal linkage to age-related periodontitis has not yet been elucidated. In this study, we investigated the involvement of the NLRP3 inflammasome and the therapeutic potential of NLRP3 inhibition in age-related alveolar bone loss by using in vivo and in vitro models. The poor quality of alveolar bones in aged mice was correlated with caspase-1 activation by macrophages and elevated levels of IL-1β, which are mainly regulated by the NLRP3 inflammasome, in periodontal ligament and serum, respectively. Aged mice lacking Nlrp3 showed better bone mass than age-matched wild-type mice via a way that affects bone resorption rather than bone formation. In line with this finding, treatment with MCC950, a potent inhibitor of the NLRP3 inflammasome, significantly suppressed alveolar bone loss with reduced caspase-1 activation in aged mice but not in young mice. In addition, our in vitro studies showed that the addition of IL-1β encourages RANKL-induced osteoclastogenesis from bone marrow-derived macrophages and that treatment with MCC950 significantly suppresses osteoclastic differentiation directly, irrelevant to the inhibition of IL-1β production. Our results suggest that the NLRP3 inflammasome is a critical mediator in age-related alveolar bone loss and that targeting the NLRP3 inflammasome could be a novel option for controlling periodontal degenerative changes with age.
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Affiliation(s)
- Y Zang
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - J H Song
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - S H Oh
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - J W Kim
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - M N Lee
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - X Piao
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - J W Yang
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - O S Kim
- Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Department of Periodontology, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - T S Kim
- Department of Life Sciences, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - S H Kim
- Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Department of Oral Anatomy, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
| | - J T Koh
- Department of Pharmacology and Dental Therapeutics, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea.,Hard-tissue Biointerface Research Center, School of Dentistry, Chonnam National University, Gwangju, Republic of Korea
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13
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Kim JH, Kim I, Kang CK, Jun KI, Yoo SH, Chun JY, Jung J, Kim YJ, Kim DY, Jo HB, Kim DY, Koh Y, Shin DY, Hong J, Kim NJ, Yoon SS, Kim TS, Park WB, Oh MD. Enhanced antimicrobial stewardship based on rapid phenotypic antimicrobial susceptibility testing for bacteraemia in patients with haematological malignancies: a randomized controlled trial. Clin Microbiol Infect 2020; 27:69-75. [PMID: 32272171 DOI: 10.1016/j.cmi.2020.03.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 01/27/2020] [Revised: 03/30/2020] [Accepted: 03/31/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVES Recently, rapid phenotypic antimicrobial susceptibility testing (AST) based on microscopic imaging analysis has been developed. The aim of this study was to determine whether implementation of antimicrobial stewardship programmes (ASP) based on rapid phenotypic AST can increase the proportion of patients with haematological malignancies who receive optimal targeted antibiotics during early periods of bacteraemia. METHODS This randomized controlled trial enrolled patients with haematological malignancies and at least one positive blood culture. Patients were randomly assigned 1:1 to conventional (n = 60) or rapid phenotypic (n = 56) AST. The primary outcome was the proportion of patients receiving optimal targeted antibiotics 72 hr after blood collection for culture. RESULTS The percentage receiving optimal targeted antibiotics at 72 hr was significantly higher in the rapid phenotypic AST group (45/56, 80.4%) than in conventional AST group (34/60, 56.7%) (relative risk (RR) 1.42, 95% confidence interval (CI) 1.09-1.83). The percentage receiving unnecessary broad-spectrum antibiotics at 72 hr was significantly lower (7/26, 12.5% vs 18/60, 30.0%; RR 0.42, 95% CI 0.19-0.92) and the mean time to optimal targeted antibiotic treatment was significantly shorter (38.1, standard deviation (SD) 38.2 vs 72.8, SD 93.0 hr; p < 0.001) in the rapid phenotypic AST group. The mean time from blood collection to the AST result was significantly shorter in the rapid phenotypic AST group (48.3, SD 17.6 vs 83.1, SD 22.2 hr). DISCUSSION ASP based on rapid phenotypic AST can rapidly optimize antibiotic treatment for bacteraemia in patients with haematological malignancy. Rapid phenotypic AST can improve antimicrobial stewardship in immunocompromised patients.
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Affiliation(s)
- J-H Kim
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - I Kim
- Division of Haematology-Oncology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - C K Kang
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - K-I Jun
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - S H Yoo
- Division of Haematology-Oncology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - J Y Chun
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - J Jung
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - Y J Kim
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - D Y Kim
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - H B Jo
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - D Y Kim
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - Y Koh
- Division of Haematology-Oncology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - D-Y Shin
- Division of Haematology-Oncology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - J Hong
- Division of Haematology-Oncology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - N J Kim
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - S-S Yoon
- Division of Haematology-Oncology, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
| | - T S Kim
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
| | - W B Park
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea.
| | - M-D Oh
- Division of Infectious Diseases, Department of Internal Medicine, Seoul National University Hospital and College of Medicine, Seoul, Republic of Korea
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14
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Oh J, Yun K, Chae JH, Kim TS. Association Between Macronutrients Intake and Depression in the United States and South Korea. Front Psychiatry 2020; 11:207. [PMID: 32256414 PMCID: PMC7090018 DOI: 10.3389/fpsyt.2020.00207] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/03/2020] [Indexed: 12/23/2022] Open
Abstract
Although the risk for depression appears to be related to daily dietary habits, how the proportion of major macronutrients affects the occurrence of depression remains largely unknown. This study aims to estimate the association between macronutrients (i.e., carbohydrate, protein, fat) and depression through national survey datasets from the United States and South Korea. Association between the prevalence of depression and each macronutrient was measured from 60,935 participants from the National Health and Nutrition Examination Survey (NHANES) and 15,700 participants from the South Korea NHANES (K-NHANES) databases. When the proportion of calories intake by protein increased by 10%, the prevalence of depression was significantly reduced both in the United States [Odds Ratio, OR (95% CI), 0.621 (0.530-0.728)] and South Korea [0.703 (0.397-0.994)]. An association between carbohydrate intake and the prevalence of depression was seen in the United States [1.194 (1.116-1.277)], but not in South Korea. Fat intake was not significantly associated with depression in either country. Subsequent analysis showed that the low protein intake groups had significantly higher risk for depression than the normal protein intake groups in both the United States [1.648 (1.179-2.304)] and South Korea [3.169 (1.598-6.286)]. In the daily diet of macronutrients, the proportion of protein intake is significantly associated with the prevalence of depression. These associations were more prominent in adults with insufficient protein intake, and the pattern of association between macronutrients and depression in Asian American and South Korean populations were similar. Our findings suggest that the proportion of macronutrients intake in everyday life may be related to the occurrence of depression.
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Affiliation(s)
- Jihoon Oh
- Department of Psychiatry, The Catholic University of Korea, Seoul, South Korea
| | - Kyongsik Yun
- Computation and Neural Systems, California Institute of Technology, Pasadena, CA, United States
- Bio-Inspired Technologies and Systems, California Institute of Technology, Pasadena, CA, United States
| | - Jeong-Ho Chae
- Department of Psychiatry, The Catholic University of Korea, Seoul, South Korea
| | - Tae-Suk Kim
- Department of Psychiatry, The Catholic University of Korea, Seoul, South Korea
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15
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Seo HJ, Baek YG, Cho BS, Kim TS, Um YH, Chae JH. Anxiety and Depression of the Patients with Hematological Malignancies during Hospitalization for Hematopoietic Stem Cell Transplantation. Psychiatry Investig 2019; 16:751-758. [PMID: 31558690 PMCID: PMC6801322 DOI: 10.30773/pi.2019.07.12] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 07/12/2019] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE This study aimed to assess the anxiety and depression in patients undergoing hematopoietic stem cell transplantation (HSCT). METHODS Eighty-seven adult patients with various hematologic diseases, who were scheduled to receive autologous or allogeneic HSCT, were enrolled. The M.D. Anderson Symptom Inventory and the Hospital Anxiety Depression Scale were applied prospectively at hospital admission (D-14), on the day of transplantation (D day), and at 7 (D7) and 14 days (D14) after transplantation. RESULTS The severity of both anxiety and depressive symptoms increased over time, with a peak at D7, and then showed a downturn at D14. Physical distresses also started with mild intensity at base line, which were continuously aggravated until D7, and then a partial recovery afterwards. Approximately, 52% of the participants had significantly high anxiety or depression before the start of HSCT. The occurrence of aggravation of pain, nausea, shortness of breath, and lack of appetite was associated with the development of anxiety during isolation period. The patients with significant baseline anxiety had higher scores on fatigue and shortness of breath items at D7 compared to those without. CONCLUSION Our finding suggests the importance of psychiatric approaches, including preventive measures, for the patients undergoing HSCT.
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Affiliation(s)
- Ho-Jun Seo
- Department of Psychiatry, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Republic of Korea
| | - Young-Gun Baek
- Seoul Metropolitan Office of Education, Seoul, Republic of Korea
| | - Byung-Sik Cho
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, Seoul St. Mary's Hospital, Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoo Hyun Um
- Department of Psychiatry, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Suwon, Republic of Korea
| | - Jeong-Ho Chae
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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16
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Joo SH, Wang SM, Jeong JE, Hahn CT, Kim TS. Impact of Age at Childbirth on Maternal Mental Health among Premenopausal Women: The 2010-2012 Korean National Health and Nutrition Examination Survey. Psychiatry Investig 2019; 16:679-685. [PMID: 31429221 PMCID: PMC6761791 DOI: 10.30773/pi.2019.07.09] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/09/2019] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVE No reports have investigated the influence of age at first or last childbirth on maternal mental health. The aim of this study was to determine whether there is an association between age at first or last childbirth and the mental health of premenopausal women. METHODS The data used in this study were collected from the 2010 to 2012 Korea National Health and Nutrition Examination Surveys. A total of 3,370 premenopausal women were considered. The association between childbirth age and maternal mental health factors, including stress, depressed mood, and suicidal ideations were analyzed using multiple logistic regression analyses adjusted for confounding factors. RESULTS After adjusting confounding factors, younger maternal age at first childbirth was found to be associated with an increase in the prevalence of maternal depressed mood and suicidal ideations. Also, older maternal age at last childbirth was related to an increase in maternal stress, depressed mood and suicidal ideations. CONCLUSION Both younger first childbirth and older last childbirth maternal age may be risk factors for poor outcomes of premenopausal women's mental health. These data support the need for comprehensive mental health assessment for premenopausal women who either gave birth at an age too young or too old.
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Affiliation(s)
- Soo Hyun Joo
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sheng-Min Wang
- Department of Psychiatry, Catholic Center for Brain Health, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jo-Eun Jeong
- Department of Psychiatry, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Chang Tae Hahn
- Department of Psychiatry, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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17
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Hwang J, DeLisi LE, Öngür D, Riley C, Zuo C, Shi X, Sung YH, Kondo D, Kim TS, Villafuerte R, Smedberg D, Yurgelun-Todd D, Renshaw PF. Cerebral bioenergetic differences measured by phosphorus-31 magnetic resonance spectroscopy between bipolar disorder and healthy subjects living in two different regions suggesting possible effects of altitude. Psychiatry Clin Neurosci 2019; 73:581-589. [PMID: 31125152 PMCID: PMC6771782 DOI: 10.1111/pcn.12893] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 05/17/2019] [Accepted: 05/22/2019] [Indexed: 12/26/2022]
Abstract
AIM Increased oxidative stress in cerebral mitochondria may follow exposure to the systemic hypobaric hypoxia associated with residing at higher altitudes. Because mitochondrial dysfunction is implicated in bipolar disorder (BD) pathophysiology, this may impact the cerebral bioenergetics in BD. In this study, we evaluated the cerebral bioenergetics of BD and healthy control (HC) subjects at two sites, located at sea level and at moderate altitude. METHODS Forty-three veterans with BD and 33 HC veterans were recruited in Boston (n = 22) and Salt Lake City (SLC; n = 54). Levels of phosphocreatine, β nucleoside triphosphate (βNTP), inorganic phosphate, and pH over total phosphate (TP) were measured using phosphorus-31 magnetic resonance spectroscopy in the following brain regions: anterior cingulate cortex and posterior occipital cortex, as well as bilateral prefrontal and occipitoparietal (OP) white matter (WM). RESULTS A significant main effect of site was found in βNTP/TP (Boston > SLC) and phosphocreatine/TP (Boston < SLC) in most cortical and WM regions, and inorganic phosphate/TP (Boston < SLC) in OP regions. A main effect analysis of BD diagnosis demonstrated a lower pH in posterior occipital cortex and right OP WM and a lower βNTP/TP in right prefrontal WM in BD subjects, compared to HC subjects. CONCLUSION The study showed that there were cerebral bioenergetic differences in both BD and HC veteran participants at two different sites, which may be partly explained by altitude difference. Future studies are needed to replicate these results in order to elucidate the dysfunctional mitochondrial changes that occur in response to hypobaric hypoxia.
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Affiliation(s)
- Jaeuk Hwang
- Department of Psychiatry, University of Utah, Salt Lake City, USA.,Department of Psychiatry, Soonchunhyang University Hospital, Seoul, South Korea
| | - Lynn E DeLisi
- US Department of Veterans Affairs Boston Healthcare System, Brockton, USA
| | - Dost Öngür
- Brain Imaging Center, McLean Hospital, Department of Psychiatry, Harvard Medical School, Belmont, USA
| | - Colin Riley
- Department of Psychiatry, University of Utah, Salt Lake City, USA
| | - Chun Zuo
- Brain Imaging Center, McLean Hospital, Department of Psychiatry, Harvard Medical School, Belmont, USA
| | - Xianfeng Shi
- Department of Psychiatry, University of Utah, Salt Lake City, USA
| | - Young-Hoon Sung
- Department of Psychiatry, University of Utah, Salt Lake City, USA
| | - Douglas Kondo
- Department of Psychiatry, University of Utah, Salt Lake City, USA.,Rocky Mountain Mental Illness Research, Education and Clinical Center, US Department of Veterans Affairs Healthcare System, Salt Lake City, USA
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - Rosemond Villafuerte
- Brain Imaging Center, McLean Hospital, Department of Psychiatry, Harvard Medical School, Belmont, USA
| | - Diane Smedberg
- US Department of Veterans Affairs Boston Healthcare System, Brockton, USA
| | - Deborah Yurgelun-Todd
- Department of Psychiatry, University of Utah, Salt Lake City, USA.,Rocky Mountain Mental Illness Research, Education and Clinical Center, US Department of Veterans Affairs Healthcare System, Salt Lake City, USA
| | - Perry F Renshaw
- Department of Psychiatry, University of Utah, Salt Lake City, USA.,Rocky Mountain Mental Illness Research, Education and Clinical Center, US Department of Veterans Affairs Healthcare System, Salt Lake City, USA
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18
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Jeong JE, Joo SH, Hahn C, Kim DJ, Kim TS. Gender-Specific Association between Alcohol Consumption and Stress Perception, Depressed Mood, and Suicidal Ideation: The 2010-2015 KNHANES. Psychiatry Investig 2019; 16:386-396. [PMID: 31132843 PMCID: PMC6539269 DOI: 10.30773/pi.2019.02.28] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 02/28/2019] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Alcohol drinking can cause various psychiatric and medical diseases. Although women generally consume less alcohol than men, they may be at a greater risk for alcohol-related psychological distress. The aim of the current study is to evaluate whether the association between alcohol consumption and psychological distress, including stress, depressed mood, and suicidal ideation and the risks of psychological distress differ based on gender. METHODS The cross-sectional study included 31,657 participants (17,915 women and 13,742 men) from the 2010-2013 and 2015 Korea National Health and Nutrition Examination Survey. Alcohol drinking and Alcohol Use Disorders Identification Test (AUDIT) levels were assessed for evaluating the amount of alcohol intake and alcohol-related problems. Self-perception of stress, depressed mood, and suicidal ideation were assessed for evaluating psychological distress. Odds ratio and 95% confidence intervals for psychological distress were calculated using multiple logistic regression models. RESULTS The risks of psychological distress were not significantly associated with drinking level in both sexes. However, the risks of psychological distress were associated with an increase in AUDIT levels, and there were gender differences in the psychological consequences of alcohol-related problems. The association was more drastic in women, and women showed a significant association even though the severity of drinking problem was low with the exception of stress perception. CONCLUSION The risks of psychological distress were associated with the severity of alcohol-related problems and women were more likely to be susceptible. Therefore, it is recommended that women even at low-risk for problematic drinking should be screened for psychological distress.
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Affiliation(s)
- Jo-Eun Jeong
- Department of Psychiatry, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Soo-Hyun Joo
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Changtae Hahn
- Department of Psychiatry, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Dai-Jin Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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19
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Baek SK, Cho YS, Kim IS, Jeon SB, Moon DK, Hwangbo C, Choi JW, Kim TS, Lee JH. A Rho-Associated Coiled-Coil Containing Kinase Inhibitor, Y-27632, Improves Viability of Dissociated Single Cells, Efficiency of Colony Formation, and Cryopreservation in Porcine Pluripotent Stem Cells. Cell Reprogram 2019; 21:37-50. [DOI: 10.1089/cell.2018.0020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Sang-Ki Baek
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
- Division of Applied Life Science (BK21 Plus), IALS, PMBBRC, Gyeongsang National University, Jinju, Republic of Korea
| | - Young-Soo Cho
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
- Division of Applied Life Science (BK21 Plus), IALS, PMBBRC, Gyeongsang National University, Jinju, Republic of Korea
| | - Ik-Sung Kim
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Soo-Been Jeon
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Dae-Ky Moon
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Cheol Hwangbo
- Division of Applied Life Science (BK21 Plus), IALS, PMBBRC, Gyeongsang National University, Jinju, Republic of Korea
- Division of Life Science, College of Natural Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Jung-Woo Choi
- College of Animal Life Science, Kangwon National University, Chuncheon, Republic of Korea
| | - Tae-Suk Kim
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Joon-Hee Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
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20
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Abstract
OBJECTIVE The purpose of this study was to evaluate the effect of altitude on rates of ADHD. As decreased dopamine (DA) activity has been reported with ADHD and hypoxia has shown to be associated with increased DA, we hypothesized that states at higher altitudes would have lower rates of ADHD. METHOD State estimates from the 2007 National Survey of Children's Health (NSCH) report and 2010 National Survey of Children with Special Health Care Needs (NS-CSHCN) report were used to extract the percentages of youth ages 4 to 17 diagnosed with ADHD. RESULTS Both the datasets independently revealed that the prevalence of ADHD decreases with increasing altitude ( R2 = .38, p < .001; R2 = .31, p < .001), respectively. This study controlled for potential confounds (e.g., low birth weight, ethnicity, and household size). CONCLUSION These findings suggest a need for further investigation into the extent by which altitude may serve as a protective factor for ADHD.
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Affiliation(s)
- Rebekah S. Huber
- University of Utah, Salt Lake City, USA
- Veterans Affairs Medical Center, Salt Lake City, UT, USA
| | - Tae-Suk Kim
- University of Utah, Salt Lake City, USA
- Catholic University of Korea, Seoul, South Korea
| | - Namkug Kim
- University of Utah, Salt Lake City, USA
- University of Ulsan, Seoul, South Korea
| | | | | | - Perry F. Renshaw
- University of Utah, Salt Lake City, USA
- Veterans Affairs Medical Center, Salt Lake City, UT, USA
| | - Douglas G. Kondo
- University of Utah, Salt Lake City, USA
- Veterans Affairs Medical Center, Salt Lake City, UT, USA
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21
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Park MW, Her SH, Cho JS, Kim TS, Park HW, Kim DW, Park KM, Chang KY. P5587Guideline-recommended optimal medical therapy in AMI patients undergoing PCI with DES: adherence and clinical outcomes using national health insurance data. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5587] [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)
- M.-W Park
- Daejun St. Mary's Hospital, Daejun, Korea Republic of
| | - S H Her
- Daejun St. Mary's Hospital, Daejun, Korea Republic of
| | - J S Cho
- Daejun St. Mary's Hospital, Daejun, Korea Republic of
| | - T S Kim
- Daejun St. Mary's Hospital, Daejun, Korea Republic of
| | - H W Park
- Daejun St. Mary's Hospital, Daejun, Korea Republic of
| | - D W Kim
- Daejun St. Mary's Hospital, Daejun, Korea Republic of
| | - K M Park
- Ulsan University Hospital, Ulsan, Korea Republic of
| | - K Y Chang
- Seoul St. Mary's Hospital, Seoul, Korea Republic of
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22
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Choi Y, Kim SH, Kim SH, Kim JY, Kim YR, Kim TS, Hwang YM, Kim JH, Jang SW, Rho TH, Lee MY, Oh YS. P1902Terminating the induced atrial tachyarrhythmia after complete pulmonary vein isolation during catheter ablation for persistent atrial fibrillation. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1902] [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)
- Y Choi
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - S H Kim
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - S H Kim
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - J Y Kim
- Uijeongbu St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Uijeongbu, Korea Republic of
| | - Y R Kim
- St.Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Incheon, Korea Republic of
| | - T S Kim
- Daejeon St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Daejeon, Korea Republic of
| | - Y M Hwang
- St. Vincent's Hospital, Division of Cardiology, Department of Internal Medicine, Suwon, Korea Republic of
| | - J H Kim
- St. Vincent's Hospital, Division of Cardiology, Department of Internal Medicine, Suwon, Korea Republic of
| | - S W Jang
- St.Paul's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - T H Rho
- St.Paul's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - M Y Lee
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
| | - Y S Oh
- Seoul St. Mary's Hospital, Division of Cardiology, Department of Internal Medicine, Seoul, Korea Republic of
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23
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Park MW, Her SH, Cho JS, Park HW, Kim DW, Kim TS, Park KM, Chang KY. P5576Moderate versus high-intensity statin therapy in east asian patients with angina undergoing PCI with DES: a propensity-score matching analysis. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5576] [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)
- M.-W Park
- Daejun St. Mary's hospital, Daejun, Korea Republic of
| | - S H Her
- Daejun St. Mary's hospital, Daejun, Korea Republic of
| | - J S Cho
- Daejun St. Mary's hospital, Daejun, Korea Republic of
| | - H W Park
- Daejun St. Mary's hospital, Daejun, Korea Republic of
| | - D W Kim
- Daejun St. Mary's hospital, Daejun, Korea Republic of
| | - T S Kim
- Daejun St. Mary's hospital, Daejun, Korea Republic of
| | - K M Park
- Ulsan University Hospital, Ulsan, Korea Republic of
| | - K Y Chang
- Seoul St. Mary's Hospital, Seoul, Korea Republic of
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24
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Jun BG, Kim YD, Kim SG, Kim YS, Jeong SW, Jang JY, Lee SH, Kim HS, Kang SH, Kim MY, Baik SK, Lee M, Kim TS, Choi DH, Choi SH, Suk KT, Kim DJ, Cheon GJ. Hepatitis B virus reactivation after radiotherapy for hepatocellular carcinoma and efficacy of antiviral treatment: A multicenter study. PLoS One 2018; 13:e0201316. [PMID: 30059513 PMCID: PMC6066246 DOI: 10.1371/journal.pone.0201316] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 07/12/2018] [Indexed: 02/06/2023] Open
Abstract
Convincing data that support routine use of preventive therapy against hepatitis B virus (HBV) reactivation in radiotherapy (RT) for hepatocellular carcinoma (HCC) are lacking. The aim of this study was to investigate the incidence, clinical significance, and risk factors of HBV reactivation after RT. Medical records of 133 HBsAg (+) HCC patients who received radiotherapy from March 2009 to February 2016 were reviewed. Patients were divided into two groups: 1) non-antiviral group, those who did not receive antiviral therapy before RT (n = 27); and antiviral group (those who underwent antiviral therapy before RT) (n = 106). Factors related to HBV reactivation in HCC patients were evaluated. 17 (12.7%) of 133 patients developed HBV reactivation after RT. Patients in the antiviral group had significantly lower rates of HBV reactivation than those in the non-antiviral group (7.5% vs. 33.3%, p<0.001). HBV related hepatitis was also lower in the antiviral group (3.8% vs. 14.8%, p = 0.031). In multivariate analysis, absence of antiviral treatment (OR: 8.339, 95% CI: 2.532-27.470, p<0.001) and combined treatment of RT with transarterial chemoembolizatoin (TACE) (OR: 5.313, 95% CI: 1.548-18.232, p = 0.008) were risk factors for HBV reactivation. HBV reactivation can occur after radiotherapy. Combination treatment of RT with TACE and non-antiviral treatment are major risk factors for HBV reactivation during or after RT. Therefore, preventive antiviral therapy should be recommended for patients with HCC who are scheduled to receive RT.
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Affiliation(s)
- Baek Gyu Jun
- Department of Internal Medicine, University of Ulsan College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - Young Don Kim
- Department of Internal Medicine, University of Ulsan College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - Sang Gyune Kim
- Department of Internal Medicine, Soonchunhyang University College of Medicine Bucheon Hospital, Bucheon, South Korea
| | - Young Seok Kim
- Department of Internal Medicine, Soonchunhyang University College of Medicine Bucheon Hospital, Bucheon, South Korea
| | - Soung Won Jeong
- Department of Internal Medicine, Soonchunhyang University College of Medicine Seoul Hospital, Seoul, South Korea
| | - Jae Young Jang
- Department of Internal Medicine, Soonchunhyang University College of Medicine Seoul Hospital, Seoul, South Korea
| | - Sae Hwan Lee
- Department of Internal Medicine, Soonchunhyang University College of Medicine Cheonan Hospital, Cheonan, South Korea
| | - Hong Soo Kim
- Department of Internal Medicine, Soonchunhyang University College of Medicine Cheonan Hospital, Cheonan, South Korea
| | - Seong Hee Kang
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Moon Young Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Soon Koo Baik
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Minjong Lee
- Department of Internal medicine, Kangwon National University Hospital, Chuncheon, South Korea
| | - Tae-Suk Kim
- Department of Internal medicine, Kangwon National University Hospital, Chuncheon, South Korea
| | - Dae Hee Choi
- Department of Internal medicine, Kangwon National University Hospital, Chuncheon, South Korea
| | - Sang-Hyeon Choi
- Department of Internal Medicine Hallym University College of Medicine, Chuncheon, South Korea
| | - Ki Tae Suk
- Department of Internal Medicine Hallym University College of Medicine, Chuncheon, South Korea
| | - Dong Joon Kim
- Department of Internal Medicine Hallym University College of Medicine, Chuncheon, South Korea
| | - Gab Jin Cheon
- Department of Internal Medicine, University of Ulsan College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
- * E-mail:
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25
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Kim J, Kang I, Chung YA, Kim TS, Namgung E, Lee S, Oh JK, Jeong HS, Cho H, Kim MJ, Kim TD, Choi SH, Lim SM, Lyoo IK, Yoon S. Altered attentional control over the salience network in complex regional pain syndrome. Sci Rep 2018; 8:7466. [PMID: 29748588 PMCID: PMC5945627 DOI: 10.1038/s41598-018-25757-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 11/18/2017] [Accepted: 04/12/2018] [Indexed: 12/13/2022] Open
Abstract
The degree and salience of pain have been known to be constantly monitored and modulated by the brain. In the case of maladaptive neural responses as reported in centralized pain conditions such as complex regional pain syndrome (CRPS), the perception of pain is amplified and remains elevated even without sustained peripheral pain inputs. Given that the attentional state of the brain greatly influences the perception and interpretation of pain, we investigated the role of the attention network and its dynamic interactions with other pain-related networks of the brain in CRPS. We examined alterations in the intra- and inter-network functional connectivities in 21 individuals with CRPS and 49 controls. CRPS-related reduction in intra-network functional connectivity was found in the attention network. Individuals with CRPS had greater inter-network connectivities between the attention and salience networks as compared with healthy controls. Furthermore, individuals within the CRPS group with high levels of pain catastrophizing showed greater inter-network connectivities between the attention and salience networks. Taken together, the current findings suggest that these altered connectivities may be potentially associated with the maladaptive pain coping as found in CRPS patients.
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Affiliation(s)
- Jungyoon Kim
- Ewha Brain Institute, Ewha Womnans University, Seoul, South Korea.,Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul, South Korea
| | - Ilhyang Kang
- Ewha Brain Institute, Ewha Womnans University, Seoul, South Korea.,Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul, South Korea
| | - Yong-An Chung
- Department of Radiology, Incheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - Tae-Suk Kim
- Department of Psychiatry, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - Eun Namgung
- Ewha Brain Institute, Ewha Womnans University, Seoul, South Korea.,Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul, South Korea
| | - Suji Lee
- Ewha Brain Institute, Ewha Womnans University, Seoul, South Korea.,Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul, South Korea
| | - Jin Kyoung Oh
- Department of Radiology, Incheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - Hyeonseok S Jeong
- Department of Radiology, Incheon St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - Hanbyul Cho
- Ewha Brain Institute, Ewha Womnans University, Seoul, South Korea
| | - Myeong Ju Kim
- Ewha Brain Institute, Ewha Womnans University, Seoul, South Korea.,Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul, South Korea
| | - Tammy D Kim
- Ewha Brain Institute, Ewha Womnans University, Seoul, South Korea.,Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul, South Korea
| | - Soo Hyun Choi
- School of Science and Engineering, Tulane University, New Orleans, USA
| | - Soo Mee Lim
- Department of Radiology, Ewha Womans University College of Medicine, Seoul, South Korea
| | - In Kyoon Lyoo
- Ewha Brain Institute, Ewha Womnans University, Seoul, South Korea. .,Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul, South Korea. .,College of Pharmacy, Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, South Korea.
| | - Sujung Yoon
- Ewha Brain Institute, Ewha Womnans University, Seoul, South Korea. .,Department of Brain and Cognitive Sciences, Ewha Womans University, Seoul, South Korea.
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26
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Kim YR, Jang SW, Hwang YM, Kim JY, Kim TS, Kim SH, Kim JH, Oh YS, Lee MY, Rho TH. P397Long-term clinical outcomes of misdosing NOACs in patients with atrial fibrillation. Europace 2018. [DOI: 10.1093/europace/euy015.208] [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: 11/13/2022] Open
Affiliation(s)
- Y R Kim
- The Catholic University of Korea Incheon St. Mary's Hospital, Internal Medicine, Incheon, Korea Republic of
| | - S W Jang
- The Catholic University of Korea, Seoul, Korea Republic of
| | - Y M Hwang
- The Catholic University of Korea, Seoul, Korea Republic of
| | - J Y Kim
- The Catholic University of Korea, Seoul, Korea Republic of
| | - T S Kim
- The Catholic University of Korea, Seoul, Korea Republic of
| | - S H Kim
- The Catholic University of Korea, Seoul, Korea Republic of
| | - J H Kim
- The Catholic University of Korea, Seoul, Korea Republic of
| | - Y S Oh
- The Catholic University of Korea, Seoul, Korea Republic of
| | - M Y Lee
- The Catholic University of Korea, Seoul, Korea Republic of
| | - T H Rho
- The Catholic University of Korea, Seoul, Korea Republic of
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27
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Casati S, Aschberger K, Barroso J, Casey W, Delgado I, Kim TS, Kleinstreuer N, Kojima H, Lee JK, Lowit A, Park HK, Régimbald-Krnel MJ, Strickland J, Whelan M, Yang Y, Zuang V. Standardisation of defined approaches for skin sensitisation testing to support regulatory use and international adoption: position of the International Cooperation on Alternative Test Methods. Arch Toxicol 2018; 92:611-617. [PMID: 29127450 PMCID: PMC5818556 DOI: 10.1007/s00204-017-2097-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [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] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 10/17/2017] [Indexed: 11/05/2022]
Abstract
Skin sensitisation is the regulatory endpoint that has been at the centre of concerted efforts to replace animal testing in recent years, as demonstrated by the Organisation for Economic Co-operation and Development (OECD) adoption of five non-animal methods addressing mechanisms under the first three key events of the skin sensitisation adverse outcome pathway. Nevertheless, the currently adopted methods, when used in isolation, are not sufficient to fulfil regulatory requirements on the skin sensitisation potential and potency of chemicals comparable to that provided by the regulatory animal tests. For this reason, a number of defined approaches integrating data from these methods with other relevant information have been proposed and documented by the OECD. With the aim to further enhance regulatory consideration and adoption of defined approaches, the European Union Reference Laboratory for Alternatives to Animal testing in collaboration with the International Cooperation on Alternative Test Methods hosted, on 4-5 October 2016, a workshop on the international regulatory applicability and acceptance of alternative non-animal approaches, i.e., defined approaches, to skin sensitisation assessment of chemicals used in a variety of sectors. The workshop convened representatives from more than 20 regulatory authorities from the European Union, United States, Canada, Japan, South Korea, Brazil and China. There was a general consensus among the workshop participants that to maximise global regulatory acceptance of data generated with defined approaches, international harmonisation and standardisation are needed. Potential assessment criteria were defined for a systematic evaluation of existing defined approaches that would facilitate their translation into international standards, e.g., into a performance-based Test Guideline. Informed by the discussions at the workshop, the ICATM members propose practical ways to further promote the regulatory use and facilitate adoption of defined approaches for skin sensitisation assessments.
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Affiliation(s)
- S Casati
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy
| | - K Aschberger
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy
| | - J Barroso
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy
| | - W Casey
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of Environmental Health Sciences, Research Triangle Park, Morrisville, NC, 27709, USA
| | - I Delgado
- BraCVAM, National Institute of Quality Control in Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - T S Kim
- Korean Center for the Validation of Alternative Methods, National Institute of Food and Drug Safety Evaluation, Cheongju, Chungcheongbuk-do, Republic of Korea
| | - N Kleinstreuer
- National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of Environmental Health Sciences, Research Triangle Park, Morrisville, NC, 27709, USA
| | - H Kojima
- Japanese Center for the Validation of Alternative Methods, National Institute of Health Sciences, Tokyo, 158-8501, Japan
| | - J K Lee
- Korean Center for the Validation of Alternative Methods, National Institute of Food and Drug Safety Evaluation, Cheongju, Chungcheongbuk-do, Republic of Korea
| | - A Lowit
- Office of Pesticide Programs, U.S. Environmental Protection Agency, Washington DC, 20460, USA
| | - H K Park
- Korean Center for the Validation of Alternative Methods, National Institute of Food and Drug Safety Evaluation, Cheongju, Chungcheongbuk-do, Republic of Korea
| | - M J Régimbald-Krnel
- Environmental Health Science and Research Bureau, Healthy Environments and Consumer Safety Branch, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - J Strickland
- Integrated Laboratory Systems inc., Research Triangle Park, Morrisville, NC, 27709, USA
| | - M Whelan
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy
| | - Y Yang
- Institute of Toxicology, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, 510300, China
| | - Valérie Zuang
- European Commission, Joint Research Centre (JRC), 21027, Ispra, Italy.
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Hahn C, Oh JH, Joo SH, Jeong JE, Chae JH, Lee CU, Kim TS. Association between mental health status and bone mineral density: Analysis of the 2008-2010 Korea national health and nutrition examination survey. PLoS One 2017; 12:e0187425. [PMID: 29131866 PMCID: PMC5683604 DOI: 10.1371/journal.pone.0187425] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 10/19/2017] [Indexed: 02/03/2023] Open
Abstract
The current study aimed to investigate the association between mental health status and bone mineral density (BMD) using data from the Korean National Health and Nutrition Examination Survey (KNHANES) 2008–2010. We enrolled 15,876 South Korean participants (4,010 postmenopausal females, 4,836 premenopausal females, and 7,016 males, all aged 20 years or older). BMD was measured using dual-energy radiography absorptiometry at the femoral neck (NK), lumbar spine (LSP), and total femur (TFM). Mental health status data were obtained from a self-report questionnaire that assessed psychological stress, depressed mood, and suicidal ideation. Psychological stress was negatively correlated with BMD in the LSP, NK, and TFM for the male group. Depressed mood was associated with lower BMD in the LSP, NK and TFM for the premenopausal female group, and in the LSP for the male group. Suicidal ideation was associated with lower BMD in the NK and TFM for the male group. Mental health problems were associated with lower BMD, especially in premenopausal females and males. Future investigations should focus on the shared pathophysiology between mental health problems and BMD, and the interrelationship between increased BMD and recovery from mental health problems.
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Affiliation(s)
- Changtae Hahn
- Department of Psychiatry, Daejeon St. Mary’s Hospital, College of Medicine, Catholic University of Korea, Deajeon, Republic of Korea
| | - Ji Hoon Oh
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Soo-Hyun Joo
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jo-Eun Jeong
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeong-Ho Chae
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang-Uk Lee
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
- * E-mail:
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Hahn C, Joo SH, Chae JH, Lee CU, Kim TS. Feasibility of Psychosocial Distress Screening and Management Program for Hospitalized Cancer Patients. Psychiatry Investig 2017; 14:734-745. [PMID: 29209376 PMCID: PMC5714714 DOI: 10.4306/pi.2017.14.6.734] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 12/20/2016] [Accepted: 02/27/2017] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Although the diagnosis and treatment of cancer is associated with psychosocial distress, routine distress screening is difficult in hospitalized oncology settings. We developed a consecutive screening program for psychosocial distress to promote psychiatric treatment of cancer patients and evaluated the feasibility of our program by Distress Thermometer (DT) and Hospital Anxiety and Depression Scale (HADS). METHODS Among 777 cancer inpatients recruited from the Catholic Comprehensive Institute of Seoul St. Mary's Hospital, 499 agreed to complete primary distress screening through DT. We conducted secondary distress screening through HADS in 229 patients who had high scores of DT. RESULTS Of the 499 participants, 270 patients with low scores of DT were included in the distress education program. 229 patients with high scores of DT received secondary distress screening through HADS. Among 115 patients with low scores of HADS, 111 patients received distress management. Among 114 patients with high scores in the secondary distress screening, 38 patients received psychiatric consultation service whereas 76 patients refused psychiatric consultation. CONCLUSION Using consecutive screening for psychosocial distress appeared to be feasible in an inpatient oncology setting. Nevertheless, the low participation rate of psychiatric consultation service in cancer patients with high distress level should be improved.
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Affiliation(s)
- Changtae Hahn
- Department of Psychiatry, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Deajeon, Republic of Korea
| | - Soo-Hyun Joo
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jeong-Ho Chae
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang-Uk Lee
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Oh J, Kim TS. Serum lipid levels in depression and suicidality: The Korea National Health and Nutrition Examination Survey (KNHANES) 2014. J Affect Disord 2017; 213:51-58. [PMID: 28189965 DOI: 10.1016/j.jad.2017.02.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [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: 11/21/2016] [Revised: 01/31/2017] [Accepted: 02/04/2017] [Indexed: 10/20/2022]
Abstract
BACKGROUND The level of serum lipids has been reported to be associated with depression and suicidality, but the exact relationship between these factors remains controversial. The aim of this study was to investigate the association between lipid levels and depression with suicidality in large sample. METHODS We examined the association between serum lipid levels and the existence of mild depression measured using Patient Health Questionnaire 9 (PHQ-9) in a national sample of Korean. The data of 2055 men and 2894 women who participated in the 6th Korea National Health and Nutrition Examination Survey (KNHNES VI) were used. The serum concentration of high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglyceride, and total cholesterol were dichotomized and complex samples logistic regression was employed in the analysis. RESULTS There was a significant association between high level of HDL-C (≥40mg/dl) and depression in adult men, and between high level of triglyceride (≥150mg/dl) and depression in adult women. In middle-aged adults 45-64 year), increased level of depression and suicidality was related to high level of triglyceride, respectively. (depression, OR=2.20 (95% CI 1.26-3.85); suicidality, OR=3.66 (95% CI 1.41-9.51). Furthermore, we found that the increased number of abnormal lipids level was significantly associated with the increased prevalence of depression in women (OR =1.34, 95% CI =1.12-1.60) and in middle-aged adults (OR=1.43, 95% CI =1.12-1.82). LIMITATIONS As this study had a cross-sectional design, it was hard to investigate causation between lipid levels and depression, and the assessment of suicidality needs more validation. CONCLUSION Our findings support a significant association between the high level of HDL-C, triglyceride and depression in large sample data. Triglyceride was highly associated with suicidality in younger and middle-aged adults, but not in elderly adults. Further assessment could delineate relationship between serum lipid levels and depression with suicidality in other ethnic groups.
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Affiliation(s)
- Jihoon Oh
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
| | - Tae-Suk Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea.
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Moon SY, Eun HJ, Baek SK, Jin SJ, Kim TS, Kim SW, Seong HH, Choi IC, Lee JH. Activation-Induced Cytidine Deaminase Induces DNA Demethylation of Pluripotency Genes in Bovine Differentiated Cells. Cell Reprogram 2016; 18:298-308. [DOI: 10.1089/cell.2015.0076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Song-Yi Moon
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Hye-Ju Eun
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Sang-Ki Baek
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Sang-Jin Jin
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
| | - Tae-Suk Kim
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
- Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Gyeongsang National University, Republic of Korea
| | - Sung-Woo Kim
- Animal Genetic Resources Station, National Institute of Animal Science, Rural Development Administration, Namwon, Republic of Korea
| | - Hwan-Hoo Seong
- Animal Genetic Resources Station, National Institute of Animal Science, Rural Development Administration, Namwon, Republic of Korea
| | - In-Chul Choi
- Division of Animal and Dairy Science, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, Republic of Korea
| | - Joon-Hee Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, Republic of Korea
- Institute of Agriculture and Life Science, College of Agriculture and Life Sciences, Gyeongsang National University, Republic of Korea
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Kim YW, Seong MW, Kim TS, Yoo CG, Kim YW, Han SK, Yim JJ. Evaluation of Xpert(®) MTB/RIF assay: diagnosis and treatment outcomes in rifampicin-resistant tuberculosis. Int J Tuberc Lung Dis 2016; 19:1216-21. [PMID: 26459536 DOI: 10.5588/ijtld.15.0183] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING The Xpert(®) MTB/RIF assay is endorsed by the World Health Organization for the detection of rifampicin (RMP) resistant tuberculosis (TB). OBJECTIVE To evaluate Xpert for its diagnostic accuracy in detecting RMP-resistant TB and its impact on treatment outcomes. DESIGN Patients with available phenotypic drug susceptibility testing (DST) results and those in whom RMP-resistant pulmonary TB was diagnosed using Xpert were evaluated. The accuracy and turnaround time (TAT) of Xpert for determining RMP-resistant TB was calculated. The TATs for treatment between patients diagnosed with RMP-resistant TB using Xpert and those diagnosed without the assay (phenotypic DST group) were compared. RESULTS In 321 patients, when phenotypic DST was used as the gold standard, Xpert sensitivity and specificity for RMP resistance diagnosis was respectively 100% and 98.7%; the positive and negative predictive values were respectively 86.2% and 100%. The Xpert group had a much shorter interval from initial evaluation to commencing second-line anti-tuberculosis treatment (64 vs. 2 days, P < 0.001), and negative conversion of mycobacterial cultures (197 vs. 62.5 days, P < 0.001) than the phenotypic DST group. CONCLUSION Xpert was accurate at diagnosing RMP resistance in this setting with an intermediate TB burden and a low level of RMP resistance. Xpert might reduce disease transmission by reducing the sputum culture conversion times for patients with RMP-resistant TB.
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Affiliation(s)
- Y W Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - M-W Seong
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - T S Kim
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - C-G Yoo
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y W Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S K Han
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J-J Yim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
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Yakunina N, Kim TS, Tae WS, Kim SS, Nam EC. Applicability of the Sparse Temporal Acquisition Technique in Resting-State Brain Network Analysis. AJNR Am J Neuroradiol 2016; 37:515-20. [PMID: 26585264 DOI: 10.3174/ajnr.a4554] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [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: 11/01/2014] [Accepted: 08/17/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The ability of sparse temporal acquisition to minimize the effect of scanner background noise is of utmost importance in auditory fMRI; however, it has considerably lower temporal efficiency and resolution than the conventional continuous acquisition method. The purpose of this study was to determine whether sparse sampling could be applied to resting-state research by comparing its results with those obtained by using continuous acquisition. MATERIALS AND METHODS We identified resting-state networks by using independent component analysis and measured their functional connectivity strength in 14 healthy subjects who underwent two 6-minute sparse (60 volumes) and continuous (360 volumes) imaging sessions. To account for the sample size difference, an additional continuous dataset was generated by temporally matching the continuous dataset to 60 volumes of the sparse dataset. RESULTS Consistent resting-state network maps were produced through all 3 datasets. Scanner background noise did not appear to affect the spatial constitution of the networks, whereas a larger sample size influenced it substantially. The strength of the intranetwork connectivity was similar through the 3 datasets. CONCLUSIONS Our results indicated that continuous acquisition is a recommended technique that should be applied in most of the resting-state studies due to its superior temporal efficiency and increased statistical power. The use of sparse temporal acquisition should be restricted to very particular conditions when continuous scanner noise is unacceptable.
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Affiliation(s)
- N Yakunina
- From the Institute of Medical Science (N.Y.) Neuroscience Research Institute (N.Y., W.S.T., S.S.K., E.C.N.)
| | - T S Kim
- Department of Otolaryngology (T.S.K.), Kangwon National University Hospital, Chuncheon, Republic of Korea
| | - W S Tae
- Neuroscience Research Institute (N.Y., W.S.T., S.S.K., E.C.N.)
| | - S S Kim
- Department of Radiology (S.S.K.) Neuroscience Research Institute (N.Y., W.S.T., S.S.K., E.C.N.)
| | - E C Nam
- Department of Otolaryngology (E.C.N.), Kangwon National University, School of Medicine, Chuncheon, Republic of Korea Neuroscience Research Institute (N.Y., W.S.T., S.S.K., E.C.N.)
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Kim TS, Jeong SH, Chang DH, In SR, Park M, Jung BK, Lee KW, Wang SJ, Bae YS, Park HT, Kim JS, Cho W, Choi DJ. Modification to the accelerator of the NBI-1B ion source for improving the injection efficiency. Rev Sci Instrum 2016; 87:02B317. [PMID: 26932045 DOI: 10.1063/1.4935004] [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] [Indexed: 06/05/2023]
Abstract
Minimizing power loss of a neutral beam imposes modification of the accelerator of the ion source for further improvement of the beam optics. The beam optics can be improved by focusing beamlets. The injection efficiencies by the steering of ion beamlets are investigated numerically to find the optimum modification of the accelerator design of the NBI-1B ion source. The beam power loss was reduced by aperture displacement of three edge beamlets arrays considering power loadings on the beamline components. Successful testing and operation of the ion source at 60 keV/84% of injection efficiency led to the possibility of enhancing the system capability to a 2.4 MW power level at 100 keV/1.9 μP.
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Affiliation(s)
- T S Kim
- Korea Atomic Energy Research Institute, Daejeon 34057, South Korea
| | - S H Jeong
- Korea Atomic Energy Research Institute, Daejeon 34057, South Korea
| | - D H Chang
- Korea Atomic Energy Research Institute, Daejeon 34057, South Korea
| | - S R In
- Korea Atomic Energy Research Institute, Daejeon 34057, South Korea
| | - M Park
- Korea Atomic Energy Research Institute, Daejeon 34057, South Korea
| | - B K Jung
- Korea Atomic Energy Research Institute, Daejeon 34057, South Korea
| | - K W Lee
- Korea Atomic Energy Research Institute, Daejeon 34057, South Korea
| | - S J Wang
- National Fusion Research Institute, Daejeon 34143, South Korea
| | - Y S Bae
- National Fusion Research Institute, Daejeon 34143, South Korea
| | - H T Park
- National Fusion Research Institute, Daejeon 34143, South Korea
| | - J S Kim
- National Fusion Research Institute, Daejeon 34143, South Korea
| | - W Cho
- National Fusion Research Institute, Daejeon 34143, South Korea
| | - D J Choi
- National Fusion Research Institute, Daejeon 34143, South Korea
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Lyoo IK, Yoon S, Kim TS, Lim SM, Choi Y, Kim JE, Hwang J, Jeong HS, Cho HB, Chung YA, Renshaw PF. Predisposition to and effects of methamphetamine use on the adolescent brain. Mol Psychiatry 2015; 20:1516-24. [PMID: 25666756 PMCID: PMC5653271 DOI: 10.1038/mp.2014.191] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [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] [Received: 03/31/2014] [Revised: 11/13/2014] [Accepted: 12/08/2014] [Indexed: 01/16/2023]
Abstract
Adolescence is a period of heightened vulnerability both to addictive behaviors and drug-induced brain damage. Yet, only limited information exists on the brain mechanisms underlying these adolescent-specific characteristics. Moreover, distinctions in brain correlates between predisposition to drug use and effects of drugs in adolescents are unclear. Using cortical thickness and diffusion tensor image analyses, we found greater and more widespread gray and white matter alterations, particularly affecting the frontostriatal system, in adolescent methamphetamine (MA) users compared with adult users. Among adolescent-specific gray matter alterations related to MA use, smaller cortical thickness in the orbitofrontal cortex was associated with family history of drug use. Our findings highlight that the adolescent brain, which undergoes active myelination and maturation, is more vulnerable to MA-related alterations than the adult brain. Furthermore, MA-use-related executive dysfunction was greater in adolescent MA users than in adult users. These findings may provide explanation for the severe behavioral complications and relapses that are common in adolescent-onset drug addiction. Additionally, these results may provide insights into distinguishing the neural mechanisms that underlie the predisposition to drug addiction from effects of drugs in adolescents.
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Affiliation(s)
- IK Lyoo
- Ewha Brain Institute, Ewha Womans University, Seoul, South Korea,Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, South Korea,Department of Brain and Cognitive Sciences, Ewha Womans University Graduate School, Seoul, South Korea
| | - S Yoon
- Ewha Brain Institute, Ewha Womans University, Seoul, South Korea
| | - TS Kim
- Department of Psychiatry, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - SM Lim
- Department of Radiology, Ewha Womans University College of Medicine, Seoul, South Korea
| | - Y Choi
- Ewha Brain Institute, Ewha Womans University, Seoul, South Korea
| | - JE Kim
- Ewha Brain Institute, Ewha Womans University, Seoul, South Korea,Department of Brain and Cognitive Sciences, Ewha Womans University Graduate School, Seoul, South Korea
| | - J Hwang
- Department of Psychiatry, Soonchunhyang University College of Medicine, Seoul, South Korea
| | - HS Jeong
- Department of Radiology, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - HB Cho
- Ewha Brain Institute, Ewha Womans University, Seoul, South Korea
| | - YA Chung
- Department of Radiology, The Catholic University of Korea College of Medicine, Seoul, South Korea
| | - PF Renshaw
- The Brain Institute and Department of Psychiatry, The University of Utah, Salt Lake City, UT, USA
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Kim SK, Yoon W, Kim TS, Kim HS, Heo TW, Park MS. Histologic Analysis of Retrieved Clots in Acute Ischemic Stroke: Correlation with Stroke Etiology and Gradient-Echo MRI. AJNR Am J Neuroradiol 2015; 36:1756-62. [PMID: 26159515 PMCID: PMC7968760 DOI: 10.3174/ajnr.a4402] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [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: 12/19/2014] [Accepted: 02/06/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE It is unclear whether clot composition analysis is helpful to predict a stroke mechanism in acute large vessel occlusion. In addition, the relationship between early vessel signs on imaging studies and clot compositions has been poorly understood. The purpose of this study was to elucidate the relationship between clot composition and stroke etiology following mechanical thrombectomy and to investigate the effect of varied clot compositions on gradient-echo MR imaging of clots. MATERIALS AND METHODS Histopathologic analysis of retrieved clots from 37 patients with acute MCA occlusion was performed. Patients underwent gradient-echo imaging before endovascular therapy. Retrieved clots underwent semiquantitative proportion analysis to quantify red blood cells, fibrin, platelets, and white blood cells by area. Correlations between clot compositions and stroke subtypes and susceptibility vessel signs on gradient-echo imaging were assessed. RESULTS Stroke etiology was classified as cardioembolism in 22 patients (59.4%), large-artery atherosclerosis in 8 (21.6%), and undetermined in 7 (18.9%). The clots from cardioembolism had a significantly higher proportion of red blood cells (37.8% versus 16.9%, P = .031) and a lower proportion of fibrin (32.3% versus 48.5%, P = .044) compared with those from large-artery atherosclerosis. The proportion of red blood cells was significantly higher in clots with a susceptibility vessel sign than in those without it (48.0% versus 1.9%, P < .001), whereas the proportions of fibrin (26.4% versus 57.0%, P < .001) and platelets (22.6% versus 36.9%, P = .011) were significantly higher in clots without a susceptibility vessel sign than those with it. CONCLUSIONS The histologic composition of clots retrieved from cerebral arteries in patients with acute stroke differs between those with cardioembolism and large-artery atherosclerosis. In addition, a susceptibility vessel sign on gradient-echo imaging is strongly associated with a high proportion of red blood cells and a low proportion of fibrin and platelets in retrieved clots.
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Affiliation(s)
- S K Kim
- From the Departments of Radiology (S.K.K., W.Y., T.W.H.)
| | - W Yoon
- From the Departments of Radiology (S.K.K., W.Y., T.W.H.)
| | | | | | - T W Heo
- From the Departments of Radiology (S.K.K., W.Y., T.W.H.)
| | - M S Park
- Neurology (M.S.P.), Chonnam National University Medical School, Chonnam National University Hospital, Gwangju, Republic of Korea
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Woo YS, Jun TY, Jeon YH, Song HR, Kim TS, Kim JB, Lee MS, Kim JM, Jo SJ. Relationship of temperament and character in remitted depressed patients with suicidal ideation and suicide attempts--results from the CRESCEND study. PLoS One 2014; 9:e105860. [PMID: 25279671 PMCID: PMC4184783 DOI: 10.1371/journal.pone.0105860] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 07/01/2013] [Accepted: 07/29/2014] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to evaluate the Temperament and Character Inventory (TCI) scores of a sample of Korean patients with remitted depression who had attempted suicide and reported suicidal ideation and to compare their scores with those of remitted depressed patients without suicidal ideation. Adult depression patients who had completed 12 weeks of follow-up (N = 138) were divided into three groups: patients with a history of suicide attempts (N = 23); patients with current suicidal ideation (N = 59); and patients without current suicidal ideation (N = 56). After controlling for covariates, no significant differences were found among the three groups on any measure of temperament or character except self-directedness and self-transcendence. The self-transcendence scores of the lifetime suicide-attempt group were significantly higher compared with those of the suicidal-ideation group; post hoc analysis revealed that self-directedness was significantly lower in the suicide-attempt group compared with the non-suicidal group. The results from the present study suggest that remitted depression patients with a history of suicide attempts do not differ from non-attempters in temperament, but do differ in certain character traits.
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Affiliation(s)
- Young Sup Woo
- Department of Psychiatry, The Catholic University of Korea School of Medicine, Seoul, Korea
| | - Tae-Youn Jun
- Department of Psychiatry, The Catholic University of Korea School of Medicine, Seoul, Korea
| | - Yang-Hwan Jeon
- Department of Psychiatry, The Catholic University of Korea School of Medicine, Seoul, Korea
| | - Hoo Rim Song
- Department of Psychiatry, The Catholic University of Korea School of Medicine, Seoul, Korea
| | - Tae-Suk Kim
- Department of Psychiatry, The Catholic University of Korea School of Medicine, Seoul, Korea
| | - Jung-Bum Kim
- Department of Psychiatry, Keimyung University School of Medicine, Daegu, Korea
| | - Min-Soo Lee
- Department of Psychiatry, College of Medicine, Korea University, Seoul, Korea
| | - Jae-Min Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - Sun-Jin Jo
- Department of Preventive Medicine, The Catholic University of Korea School of Medicine, Seoul, Korea
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Park WU, Zhao JM, Hwang KH, Kim TS, Kim JH, Yoon SY, Lee JK. Evaluation of the bonding strength of dental zirconia with veneering porcelains. J Nanosci Nanotechnol 2014; 14:7843-7846. [PMID: 25942878 DOI: 10.1166/jnn.2014.9408] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The effect of thermo-cycling treatment on the bond strength and flexural strength of porcelain veneered zirconia was evaluated. After thermo-cycling treatment between 5 degrees C to 55 degrees C, porcelain-zirconia bond strength and zirconia flexural strength was not significantly affected. In the phase analyses using XRD after thermo-cycling treatment, both the experimental group and the control group showed only tetragonal phases. That is, the porcelain-zirconia bond strength and zirconia flexural strength were not affected by low temperature degradation. So low temperature aging treatment did not reduce the flexural strength and the effect of temperature applied to the aging treatment could beignorable.
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Kim TS, Kondo DG, Kim N, Renshaw PF. Altitude may contribute to regional variation in methamphetamine use in the United States: a population database study. Psychiatry Investig 2014; 11:430-6. [PMID: 25395974 PMCID: PMC4225207 DOI: 10.4306/pi.2014.11.4.430] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/17/2014] [Accepted: 01/20/2014] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE Methamphetamine (MA) use rates in the United States (US) have consistently demonstrated geographical variation and have been higher in the West and Midwest. This uneven pattern of use could be explained by regional differences in MA manufacturing and distribution, but may also result from differences in altitude. The hypobaric hypoxia found at high altitude alters neurotransmitter synthesis in the brain, which may contribute to MA use. The present study investigated the relationship between mean altitude and MA use rate in the 48 contiguous US states and the District of Columbia. METHODS State-level estimates of past year MA use were extracted from the National Survey on Drug Use and Health report. The mean altitude of each state was calculated using the Shuttle Radar Topography Mission altitude data set. RESULTS There was a significant positive correlation between mean state altitude and MA use rate (r=0.66, p<0.0001). Multivariate linear regression analysis showed that altitude remained a significant predictor for MA use rate (β=0.36, p=0.02), after adjusting for age, ethnicity, education, socioeconomic level, employment, MA laboratory incidents, subpopulations, and other substance use. CONCLUSION Altitude appears to a possible contributing factor for regional variation of MA use in the US. Further studies will be required to determine biological changes in neurotransmission resulting from chronic mild hypoxia at high altitude in MA users.
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Affiliation(s)
- Tae-Suk Kim
- The Brain Institute, University of Utah, Salt Lake City, UT, USA
- Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, UT, USA
- Department of Psychiatry, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
| | - Douglas G Kondo
- The Brain Institute, University of Utah, Salt Lake City, UT, USA
- Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, UT, USA
- VISN 19 MIRECC, Salt Lake City Veterans Affairs Health Care System, Salt Lake City, UT, USA
| | - Namkug Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Perry F Renshaw
- The Brain Institute, University of Utah, Salt Lake City, UT, USA
- Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, UT, USA
- VISN 19 MIRECC, Salt Lake City Veterans Affairs Health Care System, Salt Lake City, UT, USA
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Kim SY, Kim TS, Park SH, Lee MR, Eun HJ, Baek SK, Ko YG, Kim SW, Seong HH, Campbell KHS, Lee JH. Siberian Sturgeon Oocyte Extract Induces Epigenetic Modifications of Porcine Somatic Cells and Improves Developmental Competence of SCNT Embryos. Asian-Australas J Anim Sci 2014; 27:266-77. [PMID: 25049951 PMCID: PMC4093206 DOI: 10.5713/ajas.2013.13699] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 11/29/2013] [Accepted: 11/25/2013] [Indexed: 11/27/2022]
Abstract
Somatic cell nuclear transfer (SCNT) has generally demonstrated that a differentiated cell can convert into a undifferentiated or pluripotent state. In the SCNT experiment, nuclear reprogramming is induced by exposure of introduced donor nuclei to the recipient cytoplasm of matured oocytes. However, because the efficiency of SCNT still remains low, a combination of SCNT technique with the ex-ovo method may improve the normal development of SCNT embryos. Here we hypothesized that treatment of somatic cells with extracts prepared from the germinal vesicle (GV) stage Siberian sturgeon oocytes prior to their use as nuclear donor for SCNT would improve in vitro development. A reversible permeability protocol with 4 μg/mL of digitonin for 2 min at 4°C in order to deliver Siberian sturgeon oocyte extract (SOE) to porcine fetal fibroblasts (PFFs) was carried out. As results, the intensity of H3K9ac staining in PFFs following treatment of SOE for 7 h at 18°C was significantly increased but the intensity of H3K9me3 staining in PFFs was significantly decreased as compared with the control (p<0.05). Additionally, the level of histone acetylation in SCNT embryos at the zygote stage was significantly increased when reconstructed using SOE-treated cells (p<0.05), similar to that of IVF embryos at the zygote stage. The number of apoptotic cells was significantly decreased and pluripotency markers (Nanog, Oct4 and Sox2) were highly expressed in the blastocyst stage of SCNT embryos reconstructed using SOE-treated cells as nuclear donor (p<0.05). And there was observed a better development to the blastocyst stage in the SOE-treated group (p<0.05). Our results suggested that pre-treatment of cells with SOE could improve epigenetic reprogramming and the quality of porcine SCNT embryos.
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Affiliation(s)
- So-Young Kim
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Tae-Suk Kim
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Sang-Hoon Park
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Mi-Ran Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Hye-Ju Eun
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Sang-Ki Baek
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Yeoung-Gyu Ko
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Sung-Woo Kim
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Hwan-Hoo Seong
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Keith H S Campbell
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
| | - Joon-Hee Lee
- Department of Animal Bioscience, College of Agriculture and Life Sciences, Gyeongsang National University, Jinju, 660-701, Korea
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Li YX, Cabling MM, Kang HS, Kim TS, Yeom SC, Sohn YG, Kim SH, Nam KC, Seo KS. Comparison and correlation analysis of different Swine breeds meat quality. Asian-Australas J Anim Sci 2014; 26:905-10. [PMID: 25049866 PMCID: PMC4093505 DOI: 10.5713/ajas.2012.12622] [Citation(s) in RCA: 23] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 04/05/2013] [Accepted: 01/04/2013] [Indexed: 11/27/2022]
Abstract
This study was performed to determine the influence of pig breed and gender on the ultimate pH and physicochemical properties of pork. The correlations between pH and pork quality traits directly related to carcass grade, and consumer’s preference were also evaluated. The pH and meat grading scores for cold carcasses of 215 purebred pigs (Duroc, Landrace, and Yorkshire) from four different farms were obtained. Meat quality parameters of the pork loin were analyzed. Duroc and female animals were more affected compared to other breeds and male pigs. Duroc animals had the highest ultimate pH, carcass back fat thickness, marbling scores, yellowness, and fat content (p<0.05). Landrace pigs had the highest color lightness and cooking loss values (p<0.05). Among all trait parameters, marbling scores showed the highest significant differences when evaluating the impact of breed and gender on meat quality characteristics (p<0.001). Ultimate pH was positively correlated with carcass weight (0.20), back fat thickness (0.19), marbling score (0.17), and color score (0.16) while negatively correlated with cooking loss (−0.24) and shear force (−0.20). Therefore, pork samples with lower ultimate pH had lower cooking loss, higher lightness, and higher shear force values irrespective of breed.
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Affiliation(s)
- Y X Li
- Department of Animal Science and Technology, Sunchon National University, Suncheon, 540-742, Korea
| | - M M Cabling
- Department of Animal Science and Technology, Sunchon National University, Suncheon, 540-742, Korea
| | - H S Kang
- Department of Animal Science and Technology, Sunchon National University, Suncheon, 540-742, Korea
| | - T S Kim
- Department of Animal Science and Technology, Sunchon National University, Suncheon, 540-742, Korea
| | - S C Yeom
- Department of Animal Science and Technology, Sunchon National University, Suncheon, 540-742, Korea
| | - Y G Sohn
- Department of Animal Science and Technology, Sunchon National University, Suncheon, 540-742, Korea
| | - S H Kim
- Department of Animal Science and Technology, Sunchon National University, Suncheon, 540-742, Korea
| | - K C Nam
- Department of Animal Science and Technology, Sunchon National University, Suncheon, 540-742, Korea
| | - K S Seo
- Department of Animal Science and Technology, Sunchon National University, Suncheon, 540-742, Korea
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Shi XF, Carlson PJ, Kim TS, Sung YH, Hellem TL, Fiedler KK, Kim SE, Glaeser B, Wang K, Zuo CS, Jeong EK, Renshaw PF, Kondo DG. Effect of altitude on brain intracellular pH and inorganic phosphate levels. Psychiatry Res 2014; 222:149-56. [PMID: 24768210 PMCID: PMC4699298 DOI: 10.1016/j.pscychresns.2014.04.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [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: 09/18/2013] [Revised: 03/25/2014] [Accepted: 04/04/2014] [Indexed: 11/30/2022]
Abstract
Normal brain activity is associated with task-related pH changes. Although central nervous system syndromes associated with significant acidosis and alkalosis are well understood, the effects of less dramatic and chronic changes in brain pH are uncertain. One environmental factor known to alter brain pH is the extreme, acute change in altitude encountered by mountaineers. However, the effect of long-term exposure to moderate altitude has not been studied. The aim of this two-site study was to measure brain intracellular pH and phosphate-bearing metabolite levels at two altitudes in healthy volunteers, using phosphorus-31 magnetic resonance spectroscopy ((31)P-MRS). Increased brain pH and reduced inorganic phosphate (Pi) levels were found in healthy subjects who were long-term residents of Salt Lake City, UT (4720ft/1438m), compared with residents of Belmont, MA (20ft/6m). Brain intracellular pH at the altitude of 4720ft was more alkaline than that observed near sea level. In addition, the ratio of inorganic phosphate to total phosphate signal also shifted toward lower values in the Salt Lake City region compared with the Belmont area. These results suggest that long-term residence at moderate altitude is associated with brain chemical changes.
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Affiliation(s)
- Xian-Feng Shi
- The Brain Institute, University of Utah, Salt Lake City, Utah, USA; Department of Psychiatry, University of Utah, Salt Lake City, UT, USA.
| | - Paul J. Carlson
- The Brain Institute, University of Utah, Salt Lake City, Utah, USA,Department of Psychiatry, University of Utah, Salt Lake City, UT, USA
| | - Tae-Suk Kim
- The Brain Institute, University of Utah, Salt Lake City, Utah, USA
| | - Young-Hoon Sung
- The Brain Institute, University of Utah, Salt Lake City, Utah, USA,Department of Psychiatry, University of Utah, Salt Lake City, UT, USA
| | - Tracy L. Hellem
- The Brain Institute, University of Utah, Salt Lake City, Utah, USA
| | | | - Seong-Eun Kim
- Department of Radiology, University of Utah, Salt Lake City, UT, USA
| | - Breanna Glaeser
- Brain Imaging Center, McLean Hospital, Department of Psychiatry, Harvard Medical School, Belmont, MA, USA
| | - Kristina Wang
- Brain Imaging Center, McLean Hospital, Department of Psychiatry, Harvard Medical School, Belmont, MA, USA
| | - Chun S. Zuo
- Brain Imaging Center, McLean Hospital, Department of Psychiatry, Harvard Medical School, Belmont, MA, USA
| | - Eun-Kee Jeong
- Department of Radiology, University of Utah, Salt Lake City, UT, USA
| | - Perry F. Renshaw
- The Brain Institute, University of Utah, Salt Lake City, Utah, USA,Department of Psychiatry, University of Utah, Salt Lake City, UT, USA,VISN 19 Mental Illness Research, Education and Clinical Center (MIRECC), Department of Veterans Affairs Medical Center, Salt Lake City, UT, USA
| | - Douglas G. Kondo
- The Brain Institute, University of Utah, Salt Lake City, Utah, USA,Department of Psychiatry, University of Utah, Salt Lake City, UT, USA,VISN 19 Mental Illness Research, Education and Clinical Center (MIRECC), Department of Veterans Affairs Medical Center, Salt Lake City, UT, USA
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Chon SB, Kim TS, Oh WS, Lee SJ, Han SS, Kim WJ. Pulmonary tuberculosis among patients hospitalised with community-acquired pneumonia in a tuberculosis-prevalent area. Int J Tuberc Lung Dis 2014; 18:761-2. [PMID: 24200280 DOI: 10.5588/ijtld.13.0183] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING A suburban teaching hospital in a tuberculosis (TB) prevalent area. OBJECTIVES To evaluate the proportion of pulmonary TB among patients hospitalised with suspected community-acquired pneumonia (CAP), and to develop a diagnostic index for identifying TB among these patients. DESIGN TB cases confirmed using 1) sputum culture, or 2) both sputum acid-fast bacilli smear and polymerase chain reaction for Mycobacterium tuberculosis, were compared with non-tuberculous CAP by demographic, clinical, laboratory and radiographic information. Using multiple logistic regression analysis, risk factors for TB were identified. A diagnostic index was developed by summing up their simplified regression coefficients. Its performance was checked using c-statistic. RESULTS TB was the second leading cause of CAP (37/528, 7.0%). Risk factors were initial symptoms >7 days, serum albumin <3.5 g/dl, cavitary/nodular infiltrates and upper lobe involvement (1 point for each). The c-statistic of the index was 0.856 (95%CI 0.789-0.923), and for bootstrapping samples of 1000 repetitions it was 0.856 (95%CI 0.791-0.921). For scores ≥2, sensitivity and specificity were respectively 81.1% and 75.8%. CONCLUSION TB is one of the leading causes of CAP in TB-prevalent areas. Our diagnostic index may help clinicians identify TB immediately from CAP and initiate appropriate isolation and optimal treatment.
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Affiliation(s)
- S-B Chon
- Department of Emergency Medicine, Seoul National University Hospital, Seoul, Korea
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Kondo DG, Hellem TL, Shi XF, Sung YH, Prescot AP, Kim TS, Huber RS, Forrest LN, Renshaw PF. A review of MR spectroscopy studies of pediatric bipolar disorder. AJNR Am J Neuroradiol 2014; 35:S64-80. [PMID: 24557702 DOI: 10.3174/ajnr.a3844] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Pediatric bipolar disorder is a severe mental illness whose pathophysiology is poorly understood and for which there is an urgent need for improved diagnosis and treatment. MR spectroscopy is a neuroimaging method capable of in vivo measurement of neurochemicals relevant to bipolar disorder neurobiology. MR spectroscopy studies of adult bipolar disorder provide consistent evidence for alterations in the glutamate system and mitochondrial function. In bipolar disorder, these 2 phenomena may be linked because 85% of glucose in the brain is consumed by glutamatergic neurotransmission and the conversion of glutamate to glutamine. The purpose of this article is to review the MR spectroscopic imaging literature in pediatric bipolar disorder, at-risk samples, and severe mood dysregulation, with a focus on the published findings that are relevant to glutamatergic and mitochondrial functioning. Potential directions for future MR spectroscopy studies of the glutamate system and mitochondrial dysfunction in pediatric bipolar disorder are discussed.
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Affiliation(s)
- D G Kondo
- From The Brain Institute (D.G.K., T.L.H., X.F.S., Y.H.S., A.P.P., R.S.H., L.N.F., P.F.R), University of Utah, Salt Lake City, UtahDepartments of Psychiatry (D.G.K., X.F.S., Y.H.S., P.F.R.)
| | - T L Hellem
- From The Brain Institute (D.G.K., T.L.H., X.F.S., Y.H.S., A.P.P., R.S.H., L.N.F., P.F.R), University of Utah, Salt Lake City, Utah
| | - X-F Shi
- From The Brain Institute (D.G.K., T.L.H., X.F.S., Y.H.S., A.P.P., R.S.H., L.N.F., P.F.R), University of Utah, Salt Lake City, UtahDepartments of Psychiatry (D.G.K., X.F.S., Y.H.S., P.F.R.)
| | - Y H Sung
- From The Brain Institute (D.G.K., T.L.H., X.F.S., Y.H.S., A.P.P., R.S.H., L.N.F., P.F.R), University of Utah, Salt Lake City, UtahDepartments of Psychiatry (D.G.K., X.F.S., Y.H.S., P.F.R.)
| | - A P Prescot
- From The Brain Institute (D.G.K., T.L.H., X.F.S., Y.H.S., A.P.P., R.S.H., L.N.F., P.F.R), University of Utah, Salt Lake City, UtahRadiology (A.P.P.), University of Utah School of Medicine, Salt Lake City, Utah
| | - T S Kim
- and Department of Psychiatry (T.S.K.), Catholic University of Korea Graduate School of Medicine, Seoul, Republic of Korea
| | - R S Huber
- From The Brain Institute (D.G.K., T.L.H., X.F.S., Y.H.S., A.P.P., R.S.H., L.N.F., P.F.R), University of Utah, Salt Lake City, Utah
| | - L N Forrest
- From The Brain Institute (D.G.K., T.L.H., X.F.S., Y.H.S., A.P.P., R.S.H., L.N.F., P.F.R), University of Utah, Salt Lake City, Utah
| | - P F Renshaw
- From The Brain Institute (D.G.K., T.L.H., X.F.S., Y.H.S., A.P.P., R.S.H., L.N.F., P.F.R), University of Utah, Salt Lake City, UtahDepartments of Psychiatry (D.G.K., X.F.S., Y.H.S., P.F.R.)Veterans Integrated Service Network 19 Mental Illness Research (P.F.R.), Education and Clinical Center, VA Salt Lake City Health Care System, Salt Lake City, Utah
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Lee H, Kim ES, Choi C, Seo H, Shin M, Bok JH, Cho JE, Kim CJ, Shin JW, Kim TS, Song KH, Park KU, Kim BI, Kim HB. Outbreak among healthy newborns due to a new variant of USA300-related meticillin-resistant Staphylococcus aureus. J Hosp Infect 2014; 87:145-51. [PMID: 24856113 DOI: 10.1016/j.jhin.2014.04.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [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: 12/05/2013] [Accepted: 04/09/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND The prevalence of community-associated meticillin-resistant Staphylococcus aureus (CA-MRSA) is increasing throughout the world and is an important cause of skin and soft tissue infection (SSTI) in children and neonates. AIM To describe the successful control of an outbreak caused by a new strain of CA-MRSA in a newborn nursery. METHODS The investigation of the outbreak in July 2012 is reported with the control measures taken. Molecular typing of the MRSA isolates was performed. FINDINGS An outbreak of SSTI caused by CA-MRSA occurred in a newborn nursery. Six neonates were infected in a one-month period [infection rate: 8.5% (6/71)]. A new variant of CA-MRSA was responsible, which was characterized as USA300-related, Panton-Valentine Leucocidin (PVL) positive, arginine catabolic mobile element (ACME) negative, sequence type 8 (ST8), staphylococcal cassette chromosome mec (SCCmec) type IVa, agr type I and spa type t008. The outbreak among term neonates followed a rapid transmission pattern and was successfully controlled by implementing various outbreak control measures, including universal chlorhexidine bathing. CONCLUSION This is the first report of a hospital outbreak caused by a USA300-related CA-MRSA clone in Korea. Early recognition and reinforcement of infection control measures are important in decreasing transmission of CA-MRSA in a hospital setting.
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Affiliation(s)
- H Lee
- Department of Paediatrics, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - E S Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
| | - C Choi
- Department of Paediatrics, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - H Seo
- Infection Control Office, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - M Shin
- Infection Control Office, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - J H Bok
- Department of Nursing, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - J E Cho
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - C J Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - J W Shin
- Department of Dermatology, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - T S Kim
- Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - K H Song
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - K U Park
- Department of Laboratory Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - B I Kim
- Department of Paediatrics, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - H B Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea; Infection Control Office, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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Chang DH, Jeong SH, Kim TS, Park M, Lee KW, In SR. Development progresses of radio frequency ion source for neutral beam injector in fusion devices. Rev Sci Instrum 2014; 85:02B303. [PMID: 24593580 DOI: 10.1063/1.4826076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A large-area RF (radio frequency)-driven ion source is being developed in Germany for the heating and current drive of an ITER device. Negative hydrogen ion sources are the major components of neutral beam injection systems in future large-scale fusion experiments such as ITER and DEMO. RF ion sources for the production of positive hydrogen (deuterium) ions have been successfully developed for the neutral beam heating systems at IPP (Max-Planck-Institute for Plasma Physics) in Germany. The first long-pulse ion source has been developed successfully with a magnetic bucket plasma generator including a filament heating structure for the first NBI system of the KSTAR tokamak. There is a development plan for an RF ion source at KAERI to extract the positive ions, which can be applied for the KSTAR NBI system and to extract the negative ions for future fusion devices such as the Fusion Neutron Source and Korea-DEMO. The characteristics of RF-driven plasmas and the uniformity of the plasma parameters in the test-RF ion source were investigated initially using an electrostatic probe.
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Affiliation(s)
- D H Chang
- Nuclear Fusion Engineering and Technology Development Center, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - S H Jeong
- Nuclear Fusion Engineering and Technology Development Center, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - T S Kim
- Nuclear Fusion Engineering and Technology Development Center, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - M Park
- Nuclear Fusion Engineering and Technology Development Center, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - K W Lee
- Nuclear Fusion Engineering and Technology Development Center, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - S R In
- Nuclear Fusion Engineering and Technology Development Center, Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
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Jeong SH, Kim TS, Lee KW, Chang DH, In SR, Bae YS. Improvement of a plasma uniformity of the 2nd ion source of KSTAR neutral beam injector. Rev Sci Instrum 2014; 85:02B316. [PMID: 24593593 DOI: 10.1063/1.4830362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The 2nd ion source of KSTAR (Korea Superconducting Tokamak Advanced Research) NBI (Neutral Beam Injector) had been developed and operated since last year. A calorimetric analysis revealed that the heat load of the back plate of the ion source is relatively higher than that of the 1st ion source of KSTAR NBI. The spatial plasma uniformity of the ion source is not good. Therefore, we intended to identify factors affecting the uniformity of a plasma density and improve it. We estimated the effects of a direction of filament current and a magnetic field configuration of the plasma generator on the plasma uniformity. We also verified that the operation conditions of an ion source could change a uniformity of the plasma density of an ion source.
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Affiliation(s)
- S H Jeong
- Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - T S Kim
- Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - K W Lee
- Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - D H Chang
- Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - S R In
- Korea Atomic Energy Research Institute, Daejeon 305-353, South Korea
| | - Y S Bae
- National Fusion Research Institute, Daejeon 305-806, South Korea
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Kim TS, Park SH, Lee MR, Kim SY, Eun HJ, Baek SK, Ko YG, Kim SW, Sung HH, Lee JH. Selection and Synchronization of Recipient Cytopalsts for Improving the Efficiency of Porcine Somatic Cell Nuclear Transfer. ACTA ACUST UNITED AC 2013. [DOI: 10.14397/jals.2013.47.6.167] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kim JH, Yoon S, Won WY, Lee C, Lee CU, Song KY, Min JA, Lyoo IK, Kim TS. Age-specific influences of emotional distress on performance status in cancer patients. Psychooncology 2013; 22:2220-6. [DOI: 10.1002/pon.3276] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 02/06/2013] [Accepted: 02/09/2013] [Indexed: 01/22/2023]
Affiliation(s)
- Ji-Hyun Kim
- Department of Psychiatry; Catholic University of Daegu School of Medicine; Daegu South Korea
| | - Sujung Yoon
- Department of Psychiatry; Catholic University of Korea College of Medicine; Seoul South Korea
- The Brain Institute and Department of Psychiatry; University of Utah School of Medicine; Salt Lake City UT USA
| | - Wang-Youn Won
- Department of Psychiatry; Catholic University of Korea College of Medicine; Seoul South Korea
| | - Chul Lee
- Department of Psychiatry; Catholic University of Korea College of Medicine; Seoul South Korea
| | - Chang-Uk Lee
- Department of Psychiatry; Catholic University of Korea College of Medicine; Seoul South Korea
| | - Kyo Young Song
- Division of Gastrointestinal Surgery, Department of Surgery; Catholic University of Korea College of Medicine; Seoul South Korea
| | - Jung-Ah Min
- Department of Psychiatry; Catholic University of Korea College of Medicine; Seoul South Korea
| | - In Kyoon Lyoo
- Division of Life and Pharmaceutical Sciences and Ewha Brain Institute; Ewha University; Seoul South Korea
| | - Tae-Suk Kim
- Department of Psychiatry; Catholic University of Korea College of Medicine; Seoul South Korea
- The Brain Institute and Department of Psychiatry; University of Utah School of Medicine; Salt Lake City UT USA
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