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Relationship between insulin resistance, obesity and serum prostate-specific antigen levels in healthy men

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Asian Journal of Andrology 2010年第3期12卷 400-404,I0011页

作者： June Hyun Han Yong Taec Lee Kyung Won Kwak seung Hyun Ahn In Ho Chang Soon Chul Myung seung Young Oh Yong-Seong Lee Wonyong Kim Young-Woo Jin Tae-In choi Sook hee Sung Department of Urology KEPCO Medical Foundation Hanil General Hospital Seou1132-703 Korea Department of Urology Chung-Ang University Hospital Seoul 140-757 Korea Department of Urology Hyundae General Hospital Namyangju 472-865 Korea Department of Urology Hallym University Hangang Sacred Heart Hospital Seoul 150-719 Korea Department of Microbiology College of Medicine Chung-Ang University Seoul 156- 756 Korea Radiation Health Research Institute Korea Hydro ＆ Nuclear Power Co. LTD Seoul 132-703 Korea

The purpose of this study was to determine the relationship between insulin resistance, obesity and serum prostate-specific antigen （PSA） levels in healthy men with serum PSA level below 4 ng mL-1. The men included in the study cohort were 11 827 healthy male employees of the Korea Hydro and Nuclear Power Co., LTD who had undergone medical checkups including fasting glucose, fasting insulin and serum PSA between January 2003 and December 2008. Insulin resistance was calculated by homeostasis model assessment （HOMA [fasting glucose × fasting insulin]/22.5） and quantitative insulin sensitivity check index （QUICK/; 1/[log （fasting insulin）＋ log （fasting glucose）]）. Age-adjusted body mass index （BMI） was significantly increased according to increasing quartile of insulin resistance as determined by HOMA and QUICKI, respectively, in analysis of variance （ANOVA） test and Duncan＇s multiple comparison test （P 〈 0.001）, but age-adjusted serum PSA concentration was significantly decreased according to increasing quartile of insulin resistance as determined by HOMA and QUICK/（P 〈 0.001）. Age, BMI, insulin resistance by HOMA or QUICK/were significantly independent variables to serum PSA level in a multivariate linear regression analysis （P 〈 0.001）. Insulin resistance was a significant independent variable to serum PSA level along with BMI. Insulin resistance and BMI were negatively correlated with serum PSA level in healthy men. Insulin resistance was positively correlated with BMI.

关键词： body mass index insulin resistance metabolic syndrome X obesity prostate-specific antigen

Impact of statin usage patterns on outcomes after percutaneous coronary in-tervention in acute myocardial infarction：Korea Working Group on Myocar-dial Infarction registry （KorMI） study

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Journal of Geriatric Cardiology 2014年第2期11卷 93-99页

作者： Chan-hee Lee Sang-hee Lee Jong-Seon Park Young-Jo Kim Kee-Sik Kim Shung-Chull Chae Hyo-Soo Kim Dong-Ju choi Myeong-Chan Cho seung-Woon Rha Myung-Ho Jeong Department of Cardiology Yeungnam University Hospital 170 Hyeonchung-ro Nam-gu Daegu 705-717 South Korea Department of Internal Medicine Daegu Catholic University Hospital 33 Duryugongwon-ro 17-gil Nam-gu Daegu 705-718 South Korea Department of Internal Medicine Kyungpook National University Hospital 130 Dongdeok-ro Jung-gu Daegu 700-721 South Korea Department of Internal Medicine Seoul National University Hospital 101 Daehak-ro Jongno-gu Seoul 110-744 South Korea Department of Internal Medicine Seoul National University Bundang Hospital 82 Gumi-ro 173-gil Bundang-gu Seongnam 463-707 South Korea Department of Internal Medicine Chungbuk National University Hospital 776 1sunhwan-ro Heungdeok-gu Cheongju 361-711 South Korea Department of Internal Medicine Korea University Guro Hospital 148 Gurodong-ro Guro-gu Seoul 152-703 South Korea Department of Internal Medicine Chonnam National University Hospital 42 Jebong-ro Dong-gu Gwangju 501-757 South Korea

Background The benefit of statin use after acute ST-segment elevation myocardial infarction （STEMI） has been well established, however, the influence of the timing of statin administration has not been elucidated. The objective of this study focused on early clinical outcomes after percutaneous coronary intervention （PCI）. Methods This analysis of the Korea Working Group on Myocardial Infarction registry （KorMI） study included 3,584 STEMI patients （mean age, 63 ±13 years;male, 2,684, 74.9%） undergoing PCI from January 2008 to June 2009. Rates of major adverse cardiac events （MACE：all-cause death, recurrent MI, and target lesion revascularization） were compared among patients grouped according to statin therapy timing：I, both during and after hospitalization （n=2,653, 74%）;II, only during hospita-lization （n=309, 8.6%）;III, only after discharge （n=157, 4.4%）;and IV, no statin therapy （n=465, 13%）. Mean follow-up duration was 234 ± 113 days. Results Multivariate factors of statin use during hospitalization included prior statin use, multiple diseased vessels, final thrombolysis in myocardial infarction flow grade III, and low-density lipoprotein cholesterol level. At 6-month follow-up, groups Ⅲ and Ⅳ had the highest MACE rates （2.3%, 3.9%, 5.1%, and 4.9%for groups I-IV, respectively, P=0.004）. After adjusting for confounders, groups Ⅱ-Ⅳ had a higher MACE risk than group Ⅰ [hazard ratio （HR）：3.20, 95%confidence interval （95%CI）：1.31-7.86, P=0.011;HR：3.84, 95%CI：1.47-10.02, P=0.006;and HR：3.17, 95%CI：1.59-6.40, P=0.001;respectively]. Conclusions This study, based on the national registry database, shows early and continuous statin therapy improvs early outcomes of STEMI patients after PCI in real-world clinical prac-tice.

关键词： Statins Acute myocardial infarction Treatment omcome

Glucose-responsive artificial promoter-mediated insulin gene transfer improves glucose control in diabetic mice

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World Journal of Gastroenterology 2012年第44期18卷 6420-6426页

作者： Jaeseok Han Eung-Hwi Kim Woohyuk choi hee-Sook Jun Department of Microbiology and Infectious Diseases University of Calgary3330 Hospital Drive N.W.CalgaryAlberta T2N 4N1Canada Del E.Webb Neuroscience Aging and Stem Cell Research CenterSanford Burnham Medical Research InstituteLa JollaCA 92037United States Lee Gil Ya Cancer and Diabetes Institute Gachon University7-45 SondodongYeonsu-kuIncheon 406-840South Korea College of Pharmacy Gachon University7-45 Sondo-dongYeonsu-kuIncheon 406-840South Korea

AIM:To investigate the effect of insulin gene therapy using a glucose-responsive synthetic promoter in type 2 diabetic obese ***:We employed a recently developed novel insulin gene therapy strategy using a synthetic promoter that regulates insulin gene expression in the liver in response to blood glucose level *** intravenously administered a recombinant adenovirus expressing furin-cleavable rat insulin under the control of the synthetic promoter(rAd-SP-rINSfur) into diabetic Lepr db/db mice.A recombinant adenovirus expressing β-galactosidase under the cytomegalovirus promoter was used as a control(rAd-CMV-βgal).Blood glucose levels and body weights were monitored for 50 *** and insulin tolerance tests were *** staining was performed to investigate islet morphology and insulin ***:Administration of rAd-SP-rINSfur lowered blood glucose levels and normoglycemia was maintained for 50 d,whereas the rAd-CMV-βgal control virus-injected mice remained *** tolerance tests showed that rAd-SP-rINSfur-treated mice cleared exogenous glucose from the blood more efficiently than control virus-injected mice at 4 wk [area under the curve(AUC):21 508.80 ± 2248.18 vs 62 640.00 ± 5014.28,P < 0.01] and at 6 wk(AUC:29 956.60 ± 1757.33 vs 60 016.60 ± 3794.47,P < 0.01).In addition,insulin sensitivity was also significantly improved in mice treated with rAd-SP-rINSfur compared with rAd-CMV-βgal-treated mice(AUC:9150.17 ± 1007.78 vs 11 994.20 ± 474.40,P < 0.05).The islets from rAd-SP-rINSfur-injected mice appeared to be smaller and to contain a higher concentration of insulin than those from rAd-CMV-βgal-injected ***:Based on these results,we suggest that insulin gene therapy might be one therapeutic option for remission of type 2 diabetes.

关键词： Insulin gene therapy Synthetic promoter Glucose-responsive element Liver-specific promoter Type 2 diabetes

Wave-Tide-Surge Coupled Simulation for Typhoon Maemi

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China Ocean Engineering 2013年第2期27卷 141-158页

作者： Byung Ho choi Byung Il Min Kyeong Ok Kim Jin hee Yuk Department of Civil and Environmental Engineering Sungkyunkwan University Marine Environments & Conservation Research Division Korea Institute of Ocean Science & Technology Supercomputing Center Korea Institute of Science and Technology Information

The main task of this study focuses on studying the effect of wave-current interaction on currents, storm surge and wind wave as well as effects of current induced wave refraction and current on waves by using numerical models which consider the bottom boundary layer and sea surface roughness parameter for shallow and smooth bed area around Korean Peninsula. The coupled system （unstructured-mesh SWAN wave and ADCIRC） run on the same unstructured mesh. This identical and homogeneous mesh allows the physics of wave-circulation interactions to be correctly resolved in both models. The unstructured mesh can be applied to a large domain allowing all energy from deep to shallow waters to be seamlessly followed. There is no nesting or overlapping of structured wave meshes, and no interpolation is required. In response to typhoon Maemi （2003）, all model components were validated independently, and shown to provide a faithful representation of the system＇s response to this storm. The waves and storm surge were allowed to develop on the continental shelf and interact with the complex nearshore environment. The resulting modeling system can be used extensively for prediction of the typhoon surge. The result show that it is important to incorporate the wave-current interaction effect into coastal area in the wave-tide-surge coupled model. At the same time, it should consider effects of depth-induced wave breaking, wind field, currents and sea surface elevation in prediction of waves. Specially, we found that：（1） wave radiation stress enhanced the current and surge elevation otherwise wave enhanced nonlinear bottom boundary layer decreased that, （2） wind wave was significantly controlled by sea surface roughness thus we cautiously took the experimental expression. The resulting modeling system can be used for hindcasting （prediction） the wave-tide-surge coupled environments at complex coastline, shallow water and fine sediment area like areas around Korean Peninsula.

关键词： typhoon Maemi finite element model tide-surge-wave coupling

Simulation of Storm Surge and Wave Due to Typhoon Isewan(5915)

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China Ocean Engineering 2015年第4期29卷 473-488页

作者： Jin-hee YUK Kyeong Ok KIM Han Soo LEE Byung Ho choi Disaster Management HPC Technology Research Center Korea Institute of Science and Technology Information Marine Radionuclide Research Center Korea Institute of Ocean Science & Technology Graduate School of Science and Engineering Saitama University Department of Civil and Environmental Engineering Sungkyunkwan University

An integrally coupled wave-tide-surge model was developed and then applied to the simulation of the wave-typhoon surge for the typhoon Isewan （typhoon Vera （5915））, which is the strongest typhoon that has struck Japan and caused incalculable damage. An integrally coupled tide-surge-wave model using identical and homogeneous meshes in an unstructured grid system was used to correctly resolve the physics of wave-circulation interaction in both models. All model components were validated independently. The storm surge and wave properties such as the surge height, the significant wave height, wave period and direction were reproduced reasonably under the meteorological forcing, which was reprocessed to be close to the observations. The resulting modeling system can be used extensively for the prediction of the storm surge and waves and the usual barotropic forecast.

关键词： typhoon Isewan storm surge wave tide coupled wave-tide-surge model

Immune enhancement effect of an herb complex extract through the activation of natural killer cells and the regulation of cytokine levels in a cyclophosphamide-induced immunosuppression rat model

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Asian Pacific Journal of Tropical Medicine 2018年第12期11卷 653-658页

作者： Sung Min Woo Woo Rin choi Dooly Jang Chun Sik Yi Hae Lim Kim Kyung Hyeon Kim Jong Tae Kim Won hee choi seung hee Jang Min Jeung Kim Ji Hyang Wee Yeon Ki Kim Bao Le Interdisciplinary Program of Biomodulation Myongji UniversityYonginGyeonggi 17058Republic of Korea Center for Nutraceutical and Pharmaceutical Materials Myongji UniversityYonginGyeonggi 17058Republic of Korea Teazen Co. B-606 Acrotower230 Sinim-daeroDongan-guAnyang-siGyeonggi-do 14067Republic of Korea Department of Food Science&Biotechnology Shin Ansan UniversityAnsanGyeonggi 15435Republic of Korea' Division of Bioscience and Bioinformatics Myongji UniversityYonginGyeonggi 17058Republic of Korea Department of Biotechnology Chonnam National UniversityYeosuChonnam 59626Republic of Korea

Objective: To investigate the effects of a herb complex extract(HCE) prepared from Cornus officinalis Sieb. Et Zucc., Eriobotrya japonica Lindley, and olive leaves on immune response of mouse spleen NK cells in vitro and in vivo analysis. Methods: The activity of natural killer(NK) cells was measured in splenocytes and YAC-1 cells. Mice were immunosuppressed using cyclophosphamide(5 mg/kg body weight). Three different doses of HCE(200, 400, and 800 mg/kg body weight) and red ginseng extract(800 mg/kg body weight) which was used as standard immunomodulatory herb were administered orally for 4 weeks. The body weight, dietary, water intake, organs(liver, thymus, and spleen) weight, completed blood count, and cytokines(tumor necrosis factor alpha, interferon gamma, and interleukin-2) production was measured. Results: At the maximum concentration of HCE, the activity of NK cells was increased by 48.5%. HCE increased liver, spleen, and thymus weights without altering numbers of white blood cells, lymphocytes, and neutrophils in a cyclophosphamide-induced immunosuppression rat model. However, HCE recovered the inhibited cytokine expression; HCE(800 mg/kg) increased cytokines levels. The results indicate the immune enhancement potential of this HCE. Conclusion: The HCE enhances immunity by increasing NK cell activity, regulating cytokine levels, and maintaining spleen weight. Therefore, it may be used as a potential immunity enhancer.

关键词： Immune system enhancement Cyclophosphamide Cornus officinalis Sieb Et Zucc Eriobotrya japonica Lindley Olive leaves

Repetitive response to gemcitabine that led to curative resection in cholangiocarcinoma

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World Journal of Gastroenterology 2009年第36期15卷 4593-4595页

作者： Seong Hun Kim In hee Kim Sang Wook Kim seung-Ok Lee Division of Gastroenterology and Hepatology Department of Internal MedicineChonbuk National University Medical SchoolJeonju 561-712South Korea

This study reports a case of unresectable intrahepatic mass-forming cholangiocarcinoma which showed a dramatic response to gemcitabine that led to curative resection and a long-term survival of more than five *** and five cycles of gemcitabine monotherapy were administered separately over a three-year period and a radical excision was performed at 4.5 years after *** case indicates the role of gemcitabine as a neoadjuvant chemotherapeutic agent for cholangiocarcinoma and guarantees a randomized controlled prospective study.

关键词： Cholangiocarcinoma Gemcitabine Neoadjuvant chemotherapy

Emerging nanoformulation strategies for phytocompounds and applications from drug delivery to phototherapy to imaging

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Bioactive Materials 2022年第8期7卷 182-205页

作者： Hwa seung Han Song Yi Koo Ki Young choi Natural Product Informatics Research Center Korea Institute of Science and Technology(KIST)Gangneung25451Republic of Korea Division of Bio-Medical Science and Technology KIST SchoolUniversity of Science and Technology(UST)Seoul02792Republic of Korea

Over thousands of years,natural bioactive compounds derived from plants(bioactive phytocompounds,BPCs)have been used worldwide to address human health ***,they are a significant resource for drug discovery in the development of modern *** many BPCs have promising biological activities,most of them cannot be effectively utilized in drugs for therapeutic applications because of their inherent limitations of low solubility,structural instability,short half-life,poor bioavailability,and non-specific distribution to *** have utilized emerging nanoformulation(NF)technologies to overcome these limitations as they have demonstrated great potential to improve the solubility,stability,and pharmacokinetic and pharmacodynamic characteristics of *** review exemplifies NF strategies for resolving the issues associated with BPCs and summarizes recent advances in their preclinical and clinical applications for imaging and *** review also highlights how innovative NF technologies play a leading role in next-generation BPC-based drug development for extended therapeutic ***,this review discusses the opportunities to take BPCs with meaningful clinical impact from bench to bedside and extend the patent life of BPC-based medicines with new formulations or application to new adjacent diseases beyond the primary drug indications.

关键词： Natural products Phytocompound Nanoformulation Drug delivery Phototherapy

Extracorporeal membrane oxygenation for lung cancer-related life-threatening hypoxia:A case report

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World Journal of Clinical Cases 2022年第25期10卷 8974-8979页

作者： seung Soo Yoo Shin Yup Lee Sun Ha choi Department of Internal Medicine Kyungpook National UniversityDaegu 41404South Korea Lung Cancer Center Kyungpook National University Chilgok HospitalDaegu 41404South Korea

BACKGROUND Life-threatening hypoxia can occur in patients with lung cancer due to bronchial *** membrane oxygenation(ECMO)can be used as a bridge therapy for patients with severe hypoxia not relieved by conventional mechanical ***,the usefulness of chemotherapy in patients with lung cancer receiving ECMO therapy is not well *** SUMMARY A 53-year-old man visited the emergency room with worsening dyspnea for 1 mo.A series of imaging and diagnostic tests were performed,and stageⅢB(cT4N2M0)lung cancer was eventually *** hospital day 3,he experienced dyspnea and hypoxia that was not relieved with oxygen support via a high-flow nasal *** was initiated because his respiratory condition did not improve even with mechanical *** patient then underwent gemcitabine/cisplatin chemotherapy without dose reduction while on *** two cycles of chemotherapy,there was a decrease in the size of the primary tumor in the right main *** the completion of concurrent chemoradiotherapy,a computed tomography scan revealed further improvement in the right main bronchus *** months after a lung cancer diagnosis,the patient did well without any *** ECMO is a potential bridge therapy for respiratory failure in patients with central airway obstruction secondary to lung cancer.

关键词： Extracorporeal membrane oxygen Lung cancer Hypoxia Respiratory failure Chemoradiotherapy Case report