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Impact of guideline adherence on the prognosis of Barcelona clinic liver cancer stage B hepatocellular carcinoma

World Journal of Gastroenterology 2023年第47期29卷 6122-6137页

作者： Ji Eun Han Hyo Jung cho Jae Youn Cheong Sun Gyo Lim Min Jae Yang choong-kyun Noh Gil Ho Lee Soon Sun Kim Department of Gastroenterology Ajou University School of MedicineSuwon 16499Gyeonggi-doSouth Korea

BACKGROUND Patients with Barcelona clinic liver cancer(BCLC)stage B hepatocellular carcinoma(HCC)are considerably heterogeneous in terms of tumor burden,liver function,and performance *** improve the poor survival outcomes of these patients,treatment approaches other than transarterial chemoembolization(TACE),which is recommended by HCC guidelines,have been adopted in realworld clinical *** hypothesize that this non-adherence to treatment guidelines,particularly with respect to the use of liver resection,improves survival in patients with stage B *** To assess guideline adherence in South Korean patients with stage B HCC and study its impact on *** A retrospective analysis was conducted using data from 2008 to 2016 obtained from the Korea Central Cancer *** with stage B HCC were categorized into three treatment groups,guideline-adherent,upward,and downward,based on HCC guidelines recommended by the Asian Pacific Association for the Study of the Liver(APASL),the European Association for the Study of the Liver(EASL),and the American Association for the Study of Liver Diseases(AASLD).The primary outcome was HCC-related deaths;tumor recurrence served as the secondary *** among the groups was compared using the Kaplan-Meier method and the log-rank *** of survival outcomes were identified using multivariable Cox regression *** In South Korea, over the study period from 2008 to 2016, a notable trend was observed in adherence to HCCguidelines. Adherence to the EASL guidelines started relatively high, ranging from 77% to 80% between 2008 and2012, but it gradually declined to 58.8% to 71.6% from 2013 to 2016. Adherence to the AASLD guidelines began at71.7% to 75.9% from 2008 to 2010, and then it fluctuated between 49.2% and 73.8% from 2011 to 2016. In contrast,adherence to the APASL guidelines remained consistently high, staying within the range of 90.14% to 94.5%throughout the entire study per

关键词： Hepatocellular carcinoma Barcelona clinic liver cancer stage B Guideline adherence Liver neoplasms Transarterial chemoembolization Liver resection

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Thermal Dechlorination Kinetics of Rare Earth Oxychlorides

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Journal of Rare Earths 2007年第S1期25卷 8-12页

作者： Hee-Chul Yang yong-Zun cho Hee-Chul Eun Eung-Ho Kim In-Tae Kim Advanced Fuel Cycle Process Development Group Korea Atomic Energy ResearchInstituteDaejeon 305-353 Korea

The kinetics of a thermal dechlorination and oxidation of NdOCl and GdOCl were investigated by using a non-isothermal thermogravimetric analysis under various oxygen partial pressures. The conversions of NdOCl and GdOCl into each of their stable oxides (Nd2O3 and Gd2O3) appeared to be an oxygen-dependent endothermic and one-step reaction. The observed activation energy for the conversions of NdOCl and GdOCl were determined as 228.3±6.1 kJ·mole-1 and 137.7±4.1 kJ·mole-1, respectively. The conversions of NdOCl and GdOCl into each of their stable oxides (Nd2O3 and Gd2O3) could be described by a power law (g(α)=α3/2) and a linear-contracting boundary reaction (g(α)=α), respectively.

关键词： oxychloride dechlorination oxidation high temperature rare earths

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Development of a skill assessment tool for the Korea operational oceanographic system

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Acta Oceanologica Sinica 2013年第9期32卷 74-81页

作者： cho Kyoung-Ho choI Jin-yong JEONG Sang-Hun choI Jung-Woon KWON Jae-Il PARK Kwang-Soon Coastal Disaster Research Center Korea Institute of Ocean Science and Technology

A standard skill assessment （SA） tool was developed and implemented to evaluate the performance of op- erational forecast models in the Korea operational oceanographic system. The SA tool provided a robust way to assess model skill in the system by comparing predictions and observations, and involved the com- putation of multiple skill metrics including correlation and error skills. User- and system-based acceptance criteria of skill metrics were applied to determine whether predictions were acceptable for the system. To achieve this, the tool produced a time series comparison plot, a skill score table, and an advanced sum- marized diagram to effectively demonstrate the multiple skill scores. Moreover, the SA was conducted to evaluate both atmospheric and hydrodynamic forecast variables. For the atmospheric variables, acceptable error criteria were preferable to acceptable correlation criteria over short timescales, since the mean square error overwhelmed the observation variance. Conversely, for the hydrodynamic variables, acceptable root mean square percentage error （e.g., perms） criteria were preferable to acceptable error （e.g., erms） criteria owing to the spatially variable tidal intensity around the Korean Peninsula. Furthermore, the SA indicated that predetermined acceptance error criteria were appropriate to satisfy a target central frequency （fc） for which errors fell within the specified limits （i.e., the .fc equals 70%）.

关键词： skill assessment tool operational forecast system Korea operational oceanographic system

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Characterization of MAGEG2 with testis-specific expression in mice

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Asian Journal of Andrology 2017年第6期19卷 659-665页

作者： Juri Jeong Sora Jin Heejin choi Jun Tae Kwon Jihye Kim Jaehwan Kim Zee yong Park Chunghee cho School of Life Sciences Gwangju Institute of Science and Technology Gwangju 61005 South Korea.

Male germ cell development is a well-defined process occurring in numerous seminiferous tubules of the testis. Uncovering testicular novel genes related to intrinsic regulation of spermatogenesis is essential for the understanding of spermatogenesis. In the present study, we investigated mouse Mageg2, which belongs to a group of melanoma-associated antigens （MAGEs）. Mageg2 is transcribed in the testis specifically, and its expression level is increased at the pachytene spermatocyte stage, indicating that Mageg2 is expressed predominantly in germ cells. We generated an antibody against mouse MAGEG2 for further characterization at the protein level. Immunoblot analysis suggested that MAGEG2 has specific testicular expression and the expression primarily occurred in pachytene spermatocytes. Proteomic analyses demonstrated that mouse MAGEG2 binded to testicular germ cell-specific serine/threonine-protein kinase 31 （STK31） and heat shock protein 9 （HSPA9）. Direct binding with both interaction partners was confirmed by co-immunoprecipitation. We found that STK31 and HSPA9 bind MAGEG2 directly but not with each other. Interestingly, MAGEG2 reduced the kinase activity of STK31. Our study suggests that mouse MAGEG2 has at least two functions, including chaperone activity related to HSPA9 and regulation of pachytene spermatocyte-specific kinase, STK31. Altogether, our results provide the first information about MAGEG2 at the transcript and protein levels and suggest its potential molecular functions.

关键词： heat shock proteins serine/threonine kinase spermatogenesis testis

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Thioredoxin and thioredoxin-interacting protein as prognostic markers for gastric cancer recurrence

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World Journal of Gastroenterology 2012年第39期18卷 5581-5588页

作者： Jae Yun Lim Sun Och Yoo Soon Won Hong Jong Won Kim Seung Ho choi Jae yong cho Department of Medical Oncology Gangnam Severance Cancer HospitalYonsei University College of MedicineSeoul 135-720South Korea Department of Pathology Gangnam Severance Cancer HospitalYonsei University College of MedicineSeoul 135-720South Korea Department of Surgery Gangnam Severance Cancer HospitalYonsei University College of MedicineSeoul 135-720South Korea

AIM:To evaluate the potential of thioredoxin (TXN) and thioredoxin-interacting protein (TXNIP) expression as biomarkers for predicting gastric cancer recurrence. METHODS:TXN and TXNIP expression levels were acquired from gene expression microarray data for 65 human gastric cancer tissues. We determined whether each gene expression level was associated with cancer recurrence and investigated the relationship between the two genes. For validation, the expression levels of TXN and TXNIP were measured by quantitative real- time reverse transcription polymerase chain reaction in 68 independent stage Ⅲ gastric cancer patients. The correlation between gene expression and cancer prognosis was evaluated. Immunohistochemical staining was performed to investigate the protein expression levels of TXN and TXNIP and to characterize the expression patterns of each protein. RESULTS:TXN was a prognosis-related gene (P = 0.009), whereas TXNIP, a TXN inhibitor, demonstrated a negative correlation with TXN in the gene expression microarray data. In the 68 stage Ⅲ patients, the expression levels of both TXN and TXNIP had a statistically significant effect on recurrence-free survival (RFS, P = 0.008 and P = 0.036, respectively). The low TXN and high TXNIP expression group exhibited a better prognosis than the other groups, and the high TXN and low TXNIP expression group exhibited a poorer prognosis (P < 0.001 for RFS and P = 0.001 for overall survival). More than half of the patients in the simulta-neously high TXN and low TXNIP expression group ex- perienced a recurrence within 1 year after curative surgery, and the 5-year survival rate of the patients in this group was 29%, compared with 89% in the low TXN and high TXNIP expression group. The TXN protein was overexpressed in 65% of the gastric cancer tissues, whereas the TXNIP protein was underexpressed in 85% of the cancer cells. In a correlation analysis, TXN and TXNIP were highly correlated with many oncogenes and tumor suppressors

关键词： Gastric cancer Thioredoxin Thioredoxin-interacting protein Biomarker Prognosis

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Effects of ranitidine for exercise induced gastric mucosal changes and bleeding

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World Journal of Gastroenterology 2006年第16期12卷 2579-2583页

作者： Suck Jun choi yong Sung Kim Jeong Ryong Chae Hong Kwan cho Tae Hyeon Kim Young Woo Sohn yong Leol Oh Geom Seog Seo yong-Ho Nah Suck Chei choi Department of Leisure and Sports Wonkwang Health Science CollegeIksanSouth Korea Department of Internal Medicine School of MedicineWonkwang University and Digestive Disease Research InstituteIksanSouth Korea Department of Physical Education College of Natural SciencesKunsan National UniversityKunsanSouth Korea Department of Internal Medicine School of MedicineWonkwang University and Digestive Disease Research InstituteIksanSouth Korea and Department of Physical EducationCollege of Natural SciencesKunsan National UniversityKunsanSouth Korea

AIM： To evaluate the effect of ranitidine on gastric mucosal changes and on GI bleeding in long distance runhers. METHODS： Twenty-four long distance runners （M： 16, F： 8, age： 18.2＋ 1.5 years） participated in this study. A symptom questionnaire, stool hemoccult test, and upper gastrointestinal （GI） endoscopy were performed on the subjects prior to the study. The subjects took oral ranitidine （150 mg, b.i.d.） for two weeks. The upper GI endoscopy and stool Hemoccult tests were repeated after the treatment. RESULTS： Twenty-two of the 24 runners had at least one upper G1 mucosal lesion before the medication. The Endoscopic improvements were seen in eleven of the 14 cases of erosive gastritis and four of the 5 cases of esophagitis. Six subjects were Heine occult positive prior to the study, but only one was positive after the medication. CONCLUSION： Gastric mucosal lesions and GI bleeding in long distance runners seem to be associated to acidrelated factors mediated by the high level of regular running. Ranitidine seems to be and effective prophylaxis to prevent gastric mucosal lesions and GI bleeding.

关键词： Endoscopy Exercise, Gastrointestinal bleeding Ranitidine

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Usefulness of magnifying endoscopy in post-endoscopic resection scar for early gastric neoplasm:A prospective short-term follow-up endoscopy study

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World Journal of Gastroenterology 2009年第3期15卷 349-355页

作者： Tae Hoon Lee Il-Kwun Chung Ji-Young Park Chang kyun Lee Suck-Ho Lee Hong Soo Kim Sang-Heum Park Sun-Joo Kim Hyun-Deuk cho Young Hwangbo Division of Gastroenterology Department of Internal MedicineSoonchunhyang University College of MedicineCheonan Hospital23-20 Bongmyung-dongCheonan330-721South Korea Department of Pathology Soonchunhyang University College of MedicineCheonan Hospital23-20 Bongmyung-dongCheonan330-721South Korea Department of Preventive Medicine Soonchunhyang University College of MedicineCheonan Hospital23-20 Bongmyung-dongCheonan330-721South Korea

AIM： To investigate the relationship between postendoscopic resection （ER） scars on magnifying endoscopy （ME） and the pathological diagnosis in order to validate the clinical significance of ME. METHODS： From January, 2007 to June, 2008, 124 patients with 129 post-ER scar lesions were enrolled. Mucosal pit patterns on ME were compared with conventional endoscopy （CE） findings and histological results obtained from targeted biopsies. RESULTS： CE findings showed nodular scars （53/129）, erythematous scars （85/129）, and ulcerative scars （4/129）. The post-ER scars were classified into four pit patterns of sulci and ridges on ME：（ Ⅰ ） 47 round; （Ⅱ） 54 short rod or tubular; （Ⅲ） 19 branched or gyrus-like;and （Ⅳ） 9 destroyed pits. Sensitivity and specificity were 88.9% and 62.5%, respectively, by the presence of nodularity on CE. Erythematous lesions were high sensitivity （100%）, but specificity was as low as 36.7%. The range of the positive predictive va ue （PPV） on CE was as low as 10.6%-25%. Nine type N pit patterns were diagnosed as tumor lesions, and 120 cases of type Ⅰ-Ⅲ pit patterns revealed non-neoplastic lesions. Thus, the sensitivity, specificity, and the PPV of ME were 100%. CONCLUSION： ME findings can detect the presence of tumor in post-ER scar lesions, and make evident the biopsy target site in short-term follow-up. Further large-scale and long-term studies are needed to determine whether ME can replace endoscopic biopsy.

关键词： Endoscopic mucosal resection Endoscopic submucosal dissection Magnifying endoscopy Pitpattern Scar

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DISTRIBUTIONS ON ALMOST CONTACT MANIFOLDS

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Acta Mathematica Scientia 2017年第3期37卷 695-702页

作者： Hyunjoo cho National Center for Theoretical Sciences Mathematics Division Taipei 10617 China

It is known that any hypersurface in an almost complex space admits an almost contact manifold [11, 14]. In this article we show that a hyperplane in an almost contact manifold has an almost complex structure. Along with this result, we explain how to deter- mine when an almost contact structure induces a contact structure, followed by examples of a manifold with a closed G2-structure.

关键词： Almost contact structure contact structure G2-structure foliation integra-bility

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Fucoidan protects hepatocytes from apoptosis and inhibits invasion of hepatocellular carcinoma by up-regulating p42/44 MAPK-dependent NDRG-1/CAP43

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Acta Pharmaceutica Sinica B 2015年第6期5卷 544-553页

作者： Yuri cho Jung-Hwan Yoon Jeong-ju Yoo Minjong Lee Dong Hyeon Lee Eun Ju cho Jeong-Hoon Lee Su Jong Yu Yoon Jun Kim Chung yong Kim Department of Internal Medicine and Liver Research Institute Seoul National University College of Medicine

Fucoidan is a traditional Chinese medicine suggested to possess anti-tumor *** this study the anti-metastatic effects of fucoidan were investigated in vitro in human hepatocellular carcinoma(HCC) cells(Huh-7 and SNU-761) under normoxic and hypoxic conditions and in vivo using a distant liver metastasis model involving injection of MH134 cells into spleen via the portal *** ability to protect hepatocytes against bile acid(BA)-induced apoptosis was investigated in primary *** was found to suppress the invasion of HCC cells through up-regulation of p42/44 MAPKdependent NDRG-1/CAP43 and partly,under normoxic conditions,through up-regulation of p42/44MAPK-dependent VMP-1 *** also significantly decreased liver metastasis in *** regards its hepatoprotective effect,fucoidan decreased BA-induced hepatocyte apoptosis as shown by the attenuation of caspase-8,and-7 cleavages and suppression of the mobilization of caspase-8 and Fas associated death domain(FADD) into the death-inducing signaling *** summary,fucoidandisplays inhibitory effects on proliferation of HCC cells and protective effects on *** results suggest fucoidan is a potent suppressor of tumor invasion with hepatoprotective effects.

关键词： Fucoidan Hepatocellular carcinoma Invasion Hypoxia Hepatoprotective Cultured hepatocyte NDRG-1/CAP43 VMP-1

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Hepatectomy vs radiofrequency ablation for colorectal liver metastasis:A propensity score analysis

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World Journal of Gastroenterology 2015年第11期21卷 3300-3307页

作者： Huisong Lee Jin Seok Heo yong Beom cho Seong Hyeon Yun Hee Cheol Kim Woo yong Lee Seong Ho choi Dong Wook choi Department of Surgery Samsung Medical CenterSungkyunkwan University School of Medicine

AIM:To compare outcomes from radiofrequency ablation(RFA) and hepatectomy for treatment of colorectal liver metastasis(CRLM).METHODS:From January 2000 to December 2009,408 patients underwent curative intent treatment for *** excluded patients using the criteria:size of CRLM > 3 cm,number of CRLM ≥ 5,percutaneous RFA,follow-up period 2 cm) CRLM(P = 0.034).However,survival curves were similar for single or small(≤ 2 cm) CRLM(P = 0.714,P = 0.740).CONCLUSION:Hepatectomy is better than RFA for the treatment of ***,RFA might be suitable for selected patients with single,small(≤ 2 cm) CRLM.

关键词： Colorectal neoplasm Metastasis Catheter ablation H

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