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Gastric ischemia after epinephrine injection in a patient with liver cirrhosis

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World Journal of Gastroenterology 2013年第3期19卷 411-414页

作者： Su Young kim Seung-Hee Han Kyung Han kim sang ock kim sang-Young Han Sung-Wook Lee Yang Hyun Baek Department of Internal Medicine Dong-A University College of MedicineBusan 602-715South Korea

Endoscopic epinephrine injection is relatively easy,quick and ***,it has a low rate of com-plications,and it is widely used for the management of nonvariceal upper gastrointestinal *** have been several case reports of gastric ischemia after en-doscopic injection *** intra-arterial in-jection may result in either spasm or thrombosis,leading to subsequent tissue ischemia or necrosis,although the stomach has a rich vascular supply and the vascular reserve of the intramural *** addition to endoscopic injection therapy,smoking,hypertension and atherosclerosis are risk factors of gastric ischemia. We report a case of gastric ischemia after submucosal epinephrine injection in a 51-year-old woman with hy-pertension and liver cirrhosis.

关键词： Hematemesis Epinephrine Gastric ischemia Liver cirrhosis Hypertension

Anterograde jejunojejunal intussusception resulted in acute efferent loop syndrome after subtotal gastrectomy

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World Journal of Gastroenterology 2010年第27期16卷 3472-3474页

作者： Jung Myun Kwak Jin kim Sung ock Suh Department of Surgery Korea University College of Medicine

Postoperative intussusception is an unusual clinical entity in adults,and is rarely encountered as a complication following gastric *** most common type after gastric surgery is retrograde jejunogastric intussusception,and jejunojejunal intussusception has been rarely *** report a case of anterograde jejunojejunal intussusception after radical subtotal gastrectomy with Billroth Ⅱ anastomosis in a 38-year-old Korean woman with early gastric cancer,and include a review of the literature on this unusual complication.

关键词： Intussusception Postoperative complications Gastrectomy

A critical regulation of Th2 cell responses by RORa in allergic asthma

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Science China(Life Sciences) 2021年第8期64卷 1326-1335页

作者： Jeong-Eun Lee Garam Cho Minkyoung Cho Daehong kim Mi-ock Lee Yeonseok Chung Laboratory of Immune Regulation Research Institute of Pharmaceutical SciencesCollege of PharmacySeoul National UniversitySeoul 08826Republic of Korea BK21 Plus Program College of PharmacySeoul National UniversitySeoul 08826Republic of Korea

Allergic asthma is a chronic inflammatory disease of the lung and the airway,which is characterized by aberrant type 2 immune responses to otherwise unharmful *** the central role of Th2 cells and type 2 cytokines in the pathogenesis of allergic asthma is well documented,the regulation and plasticity of Th2 cells remain incompletely *** using an animal model of allergic asthma in IL-4-reporter mice,we found that Th2 cells in the lung expressed higher levels of Rora than those in the lymph nodes,and that treatment with an RORa agonist SRI 078 resulted in diminished Th2 cell responses in *** determine the T cell-intrinsic role of RORa in allergic asthma in vivo,we established T cell-specific RORa-deficient^(f/f)fyf(Cd4creRora^(f/f))*** intranasal allergen challenges,Cd4creRora^(f/f)mice exhibited a significantly increased Th2 cells in the lungs and the airway and showed an enhanced eosinophilic inflammation compared to littermate control *** with Foxp3^(YFP-cre)Rora^(f/f)mice and CD^(8+)T cell depletion showed that the increased Th2 cell responses in the Cd4creRora^(f/f)mice were independent of Treg cells and CD^(8+)T *** findings demonstrate a critical regulatory role of RORa in Th2 cells,which suggest that RORa agonists could be effective for the treatment of allergic diseases.

关键词： Th2 allergic critical

Stevens-Johnson Syndrome and Hypothermia Associated with Anti-tuberculosis Medication in a Patient with Heart Failure

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Chinese Medical Journal 2015年第20期128卷 2837-2838页

作者： sang-Ok Jung Min-Ji Cho Dong-II Park Sun-Young kim Ju-ock kim Sung-Soo Jung Hee-Sun Park Jeong-Eun Lee Jae-Young Moon Chae-Uk Chung Department of Internal Medicine Division of Pulmonology and Critical Care Medicine College of Medicine Chungnam National University Hospital Jung-gu Daejeon 301-721 Korea

To the Editor： Although rare, multiple adverse events associated with anti-tuberculosis （TB） medication can occur simultaneously in patients with underlying diseases. Here, we describe a 76-year-old man with several preexisting disorders in whom anti-TB medication caused multiple, simultaneous adverse events, including Stevens-Johnson syndrome （SJS）, hypothermia, and lactic acidosis.

关键词： tuberculosis patient diseases

8-Hydroxydeoxyguanosine:Not mere biomarker for oxidative stress,but remedy for oxidative stress-implicated gastrointestinal diseases

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World Journal of Gastroenterology 2012年第4期18卷 302-308页

作者： Chan-Young ock Eun-Hee kim Duck Joo Choi Ho Jae Lee Ki-Baik Hahm Myung Hee Chung Lab of Translational Medicine Gachon University of Medicine and ScienceLee Gil Ya Cancer and Diabetes Institute Department of Gastroenterology Gachon Graduate School of MedicineGil Hospital Sungkyunkwan University Samsung Advanced Institute for Biomedical Research

Reactive oxygen species （ROS） attack guanine bases in DNA easily and form 8-hydroxydeoxyguanosine （8-OHdG）, which can bind to thymidine rather than cytosine, based on which, the level of 8-OHdG is gen- erally regarded as a biomarker of mutagenesis conse- quent to oxidative stress. For example, higher levels of 8-OHdG are noted in Helicobacter pylori-associated chronic atrophic gastritis as well as gastric cancer. However, we have found that exogenous 8-OHdG can paradoxically reduce ROS production, attenuate the nuclear factor-KB signaling pathway, and ameliorate the expression of proinflammatory mediators such as interleukin （IL）-I, IL-6, cyclo-oxygenase-2, and induc- ible nitric oxide synthase in addition to expression of nicotinamide adenine dinucleotide phosphate oxidase （NOX）-I, NOX organizer-1 and NOX activator-1 in vari- ous conditions of inflammation-based gastrointestinal （GI） diseases including gastritis, inflammatory bowel disease, pancreatitis, and even colitis-associated carci- nogenesis. Our recent finding that exogenous 8-OHdG was very effective in either inflammation-based or oxidative-stress-associated diseases of stress-related mucosal damage has inspired the hope that synthetic 8-OHdG can be a potential candidate for the treatment of inflammation-based GI diseases, as well as the pre- vention of inflammation-associated GI cancer. In this editorial review, the novel fact that exogenous 8-OHdG can be a functional molecule regulating oxidative- stress-induced gastritis through either antagonizing Rac-guanosine triphosphate binding or blocking the signals responsible for gastric inflammatory cascade is introduced.

关键词： 8-hydroxydeoxyguanosine Oxidative stress Inflammation Carcinogenesis Prevention

IRG1 induced by heme oxygenase- 1/carbon monoxide inhibits LPS-mediated sepsis and pro-inflammatory cytokine production

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Cellular & Molecular Immunology 2016年第2期13卷 170-179页

作者： Md Jamal Uddin Yeonsoo Joe Seul-Ki kim Sun Oh Jeong Stefan W Ryter Hyun-ock Pae Hun Taeg Chung School of Biological Sciences University of Ulsan Korea Department of Microbiology and Immunology Wonkwang University School of Medicine Korea Joan and Sanford I. Weill Department of Medicine New York-Presbyterian Hospital Weill Cornell Medical College New York USA

The immunoresponsive gene 1 （IRG 1） protein has crucial functions in embryonic implantation and neurodegeneration. IRG1 promotes endotoxin tolerance by increasing A20 expression in macrophages through reactive oxygen species （ROS）. The cytoprotective protein heme oxygenase-1 （HO-1）, which generates endogenous carbon monoxide （CO）, is expressed in the lung during Lipopolysaccharide （LPS） tolerance and cross tolerance. However, the detailed molecular mechanisms and functional links between IRG1 and HO-1 in the innate immune system remain unknown. In the present study, we found that the CO releasing molecule-2 （CORM-2） and chemical inducers of HO- 1 increased I RG 1 expression in a time- and dose-dependent fashion in RAW264.7 cells. Furthermore, inhibition of HO-1 activity by zinc protoporphyrin IX （ZnPP） and HO-1 siRNA significantly reduced expression of IRG1 under these conditions. In addition, treatment with CO and HO-1 induction significantly increased A20 expression, which was reversed by ZnPP and HO-1 siRNA. LPS-stimulated TNF-a was significantly decreased, whereas IRG1 and A20 were increased by CORM-2 application and HO-1 induction, which in turn were abrogated by ZnPP. Interestingly, siRNA against IRG1 and A20 reversed the effects of CO and HO-1 on LPS-stimulated TNF-a production. Additionally, CO and HO-1 inducers significantly increased IRG1 and A20 expression and downregulated TNF-a production in a LPS-stimulated sepsis mice model. Furthermore, the effects of CO and HO-1 on TNF-α production were significantly reversed when ZnPP was administered. In conclusion, CO and HO-1 induction regulates IRG1 and A20 expression, leading to inhibition of inflammation in vitroand in an in vivomice model.

关键词： A2O anti-inflammatory effects carbon monoxide HO-1 IRG1

Programmed death ligand-1 expression and its prognostic role in esophageal squamous cell carcinoma

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World Journal of Gastroenterology 2016年第37期22卷 8389-8397页

作者： Ryul kim Bhumsuk Keam Dohee Kwon Chan-Young ock Miso kim Tae Min kim Hak Jae kim Yoon Kyung Jeon In Kyu Park Chang Hyun Kang Dong-Wan kim Young Tae kim Dae Seog Heo Department of Internal Medicine Seoul National University HospitalSeoul 03080South Korea Cancer Research Institute Seoul National University College of MedicineSeoul 03080South Korea Department of Pathology Seoul National University HospitalSeoul 03080South Korea Department of Radiation Oncology Seoul National University HospitalSeoul 03080South Korea Department of Thoracic and Cardiovascular Surgery Seoul National University HospitalSeoul 03080South Korea

AIM To investigate the expression and prognostic role of programmed death ligand-1(PD-L1) in locally advanced esophageal squamous cell carcinoma(ESCC).METHODS A total of 200 patients with ESCC who underwent radical esophagectomy with standard lymphadenectomy as the initial definitive treatment in Seoul National University Hospital from December 2000 to April 2013 were eligible for this analysis. Tissue microarrays were constructed by collecting tissue cores from surgical specimens, and immunostained with antibodies directed against PD-L1, p16, and c-Met. Medical records were reviewed retrospectively to assess clinical outcomes. Patients were divided into two groups by PD-L1 status, and significant differences in clinicopathologic characteristics between the two groups were assessed. RESULTS Tumor tissues from 67 ESCC patients(33.5%) were PDL1-positive. Positive p16 expression was observed in 21 specimens(10.5%). The H-score for c-Met expression was ≥ 50 in 42 specimens(21.0%). Although PDL1-positivity was not significantly correlated with any clinical characteristics including age, sex, smoking/alcoholic history, stage, or differentiation, H-scores for c-Met expression were significantly associated with PDL1-positivity(OR = 2.34, 95%CI: 1.16-4.72, P = 0.017). PD-L1 expression was not significantly associated with a change in overall survival(P = 0.656). In contrast, the locoregional relapse rate tended to increase(P = 0.134), and the distant metastasis rate was significantly increased(HR = 1.72, 95%CI: 1.01-2.79, P = 0.028) in patients with PD-L1-positive ESCC compared to those with PD-L1-negative *** PD-L1 expression is positively correlated with c-Met expression in ESCC. PD-L1 may play a critical role in distant failure and progression of ESCC.

关键词： Esophageal neoplasm Programmed death ligand-1 protein c-Met protein Prognosis p16INK4A protein

Measles outbreaks in the Kyeongin area of the Republic of Korea,2013-2014:A single-center experience in a country of measles elimination

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Asian Pacific Journal of Tropical Medicine 2017年第1期10卷 67-72页

作者： Sun Hyoung Park Dong Hun Lee Jang Yong Jin Young-Lim Shin Meeyong Shin Sung Shin kim Won Suk Suh Jae ock Park Yong Hee Hong Department of Pediatrics College of MedicineSoonchunhyang UniversityBucheon HospitalBucheonRepublic of Korea

Objective: To identify the source of infection and determine the clinical features and laboratory finding of measles infection,Methods: In 27 measles patients,except for 3 adult patients,the rest of 24 pediatric measles cases were analyzed with regard to age,sex,immunization status,transmission routes and molecular genotyping of measles virus,Eighteen measles patients who admitted in isolation ward were set apart to investigate clinical findings and its correlation with laboratory characteristics,Retrospective analysis of cases was conducted in this study,Results: Of the 24 pediatric patients,23(95.8%) had not received any measles-containing vaccine(MCV),Sixteen of the patients(66.7%) were aged <12 months,The suspicious index case of a girl aged 34 months was not vaccinated with MCV1 and got measles after a trip to Philippines,and molecular genotype was revealed as B3,Measles outbreaks in the community such as a restaurant were followed by this one imported case,According to analysis of 18 patients admitted in isolation ward,the median level of C-reactive protein(CRP) was 0.38 mg/d L and that of lactate dehydrogenase(LDH) was 1 200 IU/L,All of the 18 patients had LDH levels above the normal range,Age correlated with CRP(ρ = 0.528,P = 0.024) and LDH(ρ = 0.501,P = 0.034),The duration of fever was correlated with the duration of fever before rash(ρ = 0.898,P < 0.01),The duration of hospitalization was correlated with CRP(ρ = 0.586,P = 0.011),The white blood cell counts were correlated with the levels of LDH(ρ = 0.505,P = 0.033),aspartate aminotransferase(ρ = 0.507,P = 0.032),and alanine aminotransferase(ρ = 0.481,P = 0.043),Conclusions: Early weaning of maternally derived measles antibodies therefore vaccination of MCV1 at a young age from 9 months to 12 months should be considered in situations of early exposure,Furthermore there is a call for consideration of scheduling an earlier age for the first dose of MMR vaccine in Europe,It is necessary for Korea to investigat

关键词： Measles Disease outbreaks Pediatrics

Expression Pattern of the Hippo Pathway Effector TAZ in Cellular and Fibrotic Nonspecific Interstitial Pneumonia

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Chinese Medical Journal 2018年第5期131卷 626-628页

作者： Min-Kyung Yeo Hee Sun Park Yeon Hee Park Choong-Sik Lee Geon Yoo Dong II Park Jeong Eun Lee Jae Young Moon Sung Soo Jung Ju ock kim Dahyun Kang Hyun Jin Cho Min-Woong Kang Jin-Whan kim Song-Soo kim Chaeuk Chung Department of Pathology Chungnam National University School of Medicine Daejeon 35015 South Korea Division of Pulmonology Department of Internal Medicine Chungnam National University 282 Munhwaro Jung-gu Daejeon 35015 South Korea Department of Internal Medicine Daejeonst Mary's Hospital College of Medicine Catholic University Daejeon 34943 South Korea ~Department of Toxicological Evaluation and Research Korea Institute of Toxicology 141 Gajeong-ro Yuseong-gu Daejeon 34114 South Korea Department of Thoracic Surgery College of Medicine Chungnam National University Daejeon 35015 South Korea Department of Radiology College of Medicine Chungnam National University Daejeon 35015 South Korea Infection Control Convergence Research Center College of Medicine Chungnam National University Jung-guMunhwa-ro 266 Daejeon 35015 South Korea

Interstitial lung disease （ILD） is a comprehensive term referring to a group of lung diseases affecting the interstitium of the lung. Idiopathic pulmonary fibrosis （IPF） is the most common idiopathic ILD, and nonspecific interstitial pneumonia （NSIP） is the second most common. As the name suggests, NSIP is diagnosed atter many other diseases are excluded. The main pathological finding in NSIP is homogeneous interstitial inflammation with or without fibrosis. NSIP can be categorized by cellular type or fibrotic type, according to the grade of inflammation and fibrosis. The cellular type has mostly inflammatory lesions with good responses to steroid, but the fibrotic type has a large proportion of fibrosis mixed with inflammatory lesions and a relatively poor response to steroid treatment So far, the exact mechanism underlying idiopathic lED has not been clarified. Determining key regulators of these ILDs will be helpful in the diagnosis and development of novel drugs for ILD.

关键词： YAP