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Bowel function and quality of life after minimally invasive colectomy with D3 lymphadenectomy for right-sided colon adenocarcinoma

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World Journal of Gastroenterology 2020年第33期26卷 4972-4982页

作者： ki-myung lee Se-Jin Baek Jung-Myun Kwak Jin kim Seon-Hahn kim Department of Surgery Korea University College of MedicineSeoul 02841South Korea

BACKGROUND Changes in bowel function after right-sided colectomy are not well understood compared to those associated with left-sided colectomy or rectal *** particular,there are concerns about bowel function after right-sided colectomy with complete mesocolic excision,which has become popular in the *** To evaluate the functional outcomes of patients who underwent right-sided colectomy with D3 lymphadenectomy for colon *** Functional data from patients who underwent minimally invasive right-sided colectomy for colon cancer from October 2017 to September 2018 were prospectively *** outcomes were evaluated preoperatively and at 3,6,12,and 18 mo *** Prior to surgery,57 patients answered the questionnaire,and 47 responded at three months,52 at 6 mo,52 at 12 mo,and 25 at 18 mo *** scales of quality of life and bowel function improved significantly over *** persisted to a high degree throughout the period without a significant change over *** use of medications for defecation was about 10%over the entire ***(P=0.023)and fecal frequency(Pking *** six months,resected bowel and colon lengths were significantly different as a risk factor between the dysfunction group and the no dysfunction group[odd ratio(OR):1.095,P=0.026;OR:1.147,P=0.031,respectively]in univariate analysis,but not in multivariate *** Despite D3 lymphadenectomy,most bowel symptoms improved over time after right-sided colectomy using a minimally invasive approach,and continuous medication was needed in only approximately 10%of patients.

关键词： Colonic neoplasm Right colectomy Bowel function D3 lymphadenectomy Complete mesocolic excision Quality of life

Integration of omics studies indicates that species-dependent molecular mechanisms govern male fertility

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Journal of Animal Science and Biotechnology 2023年第3期14卷 1026-1039页

作者： Yoo-Jin Park Won-ki Pang myung-Geol Pang Department of Animal Science&Technology and BET Research Institute Chung-Ang UniversityAnseongGyeonggi‑do17546Republic of Korea

Background Comparative and comprehensive omics studies have recently been conducted to provide a comprehensive understanding of the biological mechanisms underlying ***,because these huge omics datasets often contain irrelevant information,editing strategies for summarizing and filtering the data are necessary prerequisite steps for identifying biomarkers of male ***,we attempted to integrate omics data from spermatozoa with normal and below-normal fertility from boars and bulls,including transcriptomic,proteomic,and metabolomic *** enrichment analysis was conducted and visualized using g:Profiler,Cytoscape,EnrichmentMap,and AutoAnnotation to determine fertility-related biological functions according to *** In particular,gamete production and protein biogenesis-associated pathways were enriched in bull spermatozoa with below-normal fertility,whereas mitochondrial-associated metabolic pathways were enriched in boar spermatozoa with normal *** results indicate that below-normal fertility may be determined by aberrant regulation of protein synthesis during spermatogenesis,and the modulation of reactive oxygen species generation to maintain capacitation and the acrosome reaction governs boar sperm *** Overall,this approach demonstrated that distinct molecular pathways drive sperm fertility in mammals in a species-dependent ***,we anticipate that searching for species-specific signaling pathways may aid in the discovery of fertility-related biomarkers within large omics datasets.

关键词： Integrated signaling pathways Male fertility Metabolomics Proteomics Spermatozoa transcriptomics

Clinical significance of isolated biliary candidiasis in patients with unresectable cholangiocarcinoma

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Hepatobiliary & Pancreatic Diseases International 2016年第5期15卷 533-539页

作者： In-Ho kim Jae-ki Choi Dong-Gun lee In Seok lee Tae Ho Hong Young Kyoung You Ho Jong Chun myung Ah lee Departments of Internal Medicine Division of Medical 0ncologySeoul St. Mary’s Hospital The Catholic University of Korea Seoul Korea Departments of Internal Medicine Division of Infectious Diseases Bucheon St. Mary’s Hospital The Catholic University of Korea Seoul Korea Division of Infectious Diseases Seoul St. Mary’s Hospital The Catholic University of Korea Seoul Korea Division of Gastroenterology Seoul St. Mary’s Hospital The Catholic University of Korea Seoul Korea Department of Surgery Seoul St. Mary’s Hospital The Catholic University of Korea Seoul Korea Department of Radiology Seoul St. Mary’s Hospital The Catholic University of Korea Seoul Korea Department of Hepato-Biliary-Pancreatic Cancer Center Seoul St. Mary’s Hospital The Catholic University of Korea Seoul Korea

BACKGROUND: The frequency of isolated biliary candidiasis is increasing in cancer patients. The clinical signiifcance of isolated biliary candidiasis remains unclear. We analyzed the risk factors of biliary candidiasis and outcomes of the patients with unresectable cholangiocarcinoma after percutaneous transhepatic biliary drainage (PTBD). METHODS: Among 430 patients who underwent PTBD between January 2012 and March 2015, 121 patients had unresectable cholangiocarcinoma. Bile and blood samples were collected for consecutive fungal culture. RESULTS: The study cohort included 49 women and 72 men with a median age of 71 years. Multivariate analysis showed that cancer progression (P=0.013), concurrent presence of another microorganism (P=0.010), and previous long-term (>7 days) antibiotic use (P=0.011) were potential risk factors of biliary candidiasis. Chemotherapy was not associated with overall biliary candidiasis (P=0.196), but was signiifcantly related to repeated biliary candidiasis (P=0.011). Patients with isolated biliary candidiasis showed remarkably reduced survival compared with those without (median overall sur-vival (OS): 32 vs 62 days,P=0.011)Subgroup analysis was also performed. Patients with repeated candidiasis had markedly decreased survival compared with those with transient candi-diasis (median OS: 30 vs 49 days,P=0.046). Biliary candidiasis was identiifed as a poor prognostic factor by univariate and multivariate analyses (P=0.033). Four cases of repeated can-didiasis (4/19, 21%) showedCandida species in consecutive blood culture until the end of the study, but others showed no candidemia. CONCLUSIONS: Isolated biliary candidiasis may be associ-ated with poor prognosis in patients with unresectable chol-angiocarcinoma. Especially, repeated biliary candidiasis may have the possibility of progression to candidemia. We suggest that biliary dilatation treatment or antifungal agents might be helpful for patients with biliary candidiasis.

关键词： biliary candidiasis biliary obstruction cholangiocarcinoma percutaneous transhepatic biliary drainage

Hematologic diseases: High risk of Clostridium difficile associated diarrhea

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World Journal of Gastroenterology 2014年第21期20卷 6602-6607页

作者： Tae-Geun Gweon myung-Gyu Choi Myong ki Baeg Chul-Hyun Lim Jae myung Park In Seok lee Sang Woo kim Dong-Gun lee Yeon Joon Park Jong Wook lee Division of Gastroenterology Department of Internal MedicineSeoul St Mary’s hospitalThe Catholic University of KoreaCollege of MedicineSeoul 137-701South Korea Division of Infectious Diseases Department of Internal MedicineSeoul St Mary’s hospitalThe Catholic University of KoreaCollege of MedicineSeoul 137-701South Korea Department of Laboratory Medicine Seoul St Mary’s hospitalThe Catholic University of KoreaCollege of MedicineSeoul 137-701South Korea Division of Hematologic Diseases Department of Internal MedicineSeoul St Mary’s hospitalThe Catholic University of KoreaCollege of MedicineSeoul 137-701South Korea

AIM: To investigate the incidence and clinical outcome of Clostridium difficile (C. difficile) associated diarrhea (CDAD) in patients with hematologic disease.

关键词： Clostridium difficile associated diarrhea Incidence Clinical outcome Patients with hematologic disease Intravenous immunoglobulin

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

Prediction of nephrotoxicity induced by cisplatin combination chemotherapy in gastric cancer patients

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World Journal of Gastroenterology 2011年第30期17卷 3510-3517页

作者： Hyung Hwan Moon Kyung Won Seo ki Young Yoon Yeon myung Shin Kyung Hyun Choi Sang Ho lee Department of Surgery Kosin University College of Medicine602-703 BusanSouth Korea

AIM:To evaluate the treatment options for nephrotoxicity due to cisplatin combination ***:We retrospectively reviewed patients who had received cisplatin combination chemotherapy for gastric cancer between January 2002 and December *** investigated patients who had shown acute renal failure(ARF),and examined their clinical characteristics,laboratory data,use of preventive measures,treatment cycles,the amount of cisplatin administered,recovery period,subsequent treatments,and renal status between the recovered and unrecovered ***:Forty-one of the 552 patients had serum creatinine(SCR)levels greater than 1.5 mg/*** found that pre-ARF SCR,ARF SCR,and ARF glomerular filtration rates were significantly associated with renal status postARF between the two groups(P=0.008,0.026,0.026,respectively).On the receiver operating characteristic curve of these values,a 1.75 mg/dL ARF SCR value had 87.5%sensitivity and 84.8%specificity(P=0.011).CONCLUSION:Cessation or reduction of chemotherapy should be considered for patients who have an elevation of SCR levels during cisplatin combination chemotherapy.

关键词： Acute renal failure Cisplatin Drug toxicities Nephrotoxicity

Rapid manufacturing of SiC molds with micro-sized holes using abrasive water jet

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中国有色金属学会会刊：英文版 2009年第B9期19卷 178-182页

作者： Bo-Sung SHIN Kang-Su PARK Yeon-Kyoung BAHK Sun-ki PARK Jung-Han lee Jeung-Sang GO myung-Chang KANG Chae-Moon lee ERC/NSDM Pusan National University School of Mechanical Engineering Pusan National University Microhole Company NCRC Pusan National University Samsung Electro-Mechanics

Silicon carbide (SiC) is highly wear resistant with good mechanical properties, including high temperature strength, excellent chemical resistance, and high thermal conductivity and thermal shock resistance. SiC molds, which can be produced with diverse microstructural features, are now widely used in glass molding owing to their excellent characteristics, and also have potential applicability in IT industries. SiC molds are traditionally fabricated by silicon micromachining or dicing. The fabrication cost of silicon micromachining is very high, however, because several expensive masks are needed. Furthermore, the fabrication time is very long. Meanwhile, it is difficult to make micro-patterned molds with arbitrary shapes using dicing saws. Abrasive water jet (AWJ) is widely applied to cut and drill very brittle, soft and fibrous materials. It offers high energy density, the absence of a heat affected zone(HAZ), high performance, and an environment friendly process. In spite of these advantages, micro-hole drilling via conventional AWJ processing suffers from notable shortcomings. We proposed a new abrasive supplying method of AWJ. The proposed method reduces frosting phenomena, and provides micro-machining of AWJ. The characteristics of a hole machined was investigated by the proposed AWJ process according to the ratio of water and abrasives. With the optimal experimental conditions, 3×3 array SiC molds with the diameter of 700 μm and depth of 900 μm were successfully manufactured.

关键词：快速模具制造磨料水射流碳化硅微型硅微加工型孔最佳实验条件机械性能

Long-term pretreatment with proton pump inhibitor and Helicobacter pylori eradication rates

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World Journal of Gastroenterology 2014年第4期20卷 1061-1066页

作者： Seung Bae Yoon Jae myung Park Jong-Yul lee Myong ki Baeg Chul-Hyun Lim Jin Soo kim Yu Kyung Cho In Seok lee Sang Woo kim myung-Gyu Choi Division of Gastroenterology Department of Internal Medicine College of Medicine The Catholic University of Korea

AIM: To investigate whether proton pump inhibitor (PPI) pretreatment influences Helicobacter pylori eradication rate.

关键词： Proton pump inhibitor Helicobacter pylori Urea breath test Antibiotics Drug resistance

Helicobacter pylori infection is not associated with nonalcoholic fatty liver disease

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World Journal of Gastroenterology 2016年第8期22卷 2592-2600页

作者： Myong ki Baeg Seung Kew Yoon Sun-Hye Ko Yong-Sun Noh In-Seok lee myung-Gyu Choi Department of Internal Medicine The Catholic University of Korea College of Medicine

AIM: To determine whether Helicobacter pylori (H. pylori) infection confers a higher risk of Nonalcoholic fatty liver disease (NAFLD).METHODS: Healthy people who underwent health screening were analyzed retrospectively. Inclusion criteria were age ≥ 20 years, history of H. pylori infection, and recorded insulin level. Participants were classified as H. pylori positive or negative according to 13C urea breath tests. NAFLD was defined using the hepatic steatosis index (HSI) and NAFLD liver fat score (NAFLD-LFS). Those with an HSI > 36 or NAFLD-LFS > -0.640 were considered to have NAFLD. Multivariable logistic regression was performed to identify risk factors for ***: Three thousand six hundred and sixty-three people were analyzed and 1636 (44.7%) were H. pylori positive. H. pylori infection was associated with older age, male gender, hypertension, higher body mass index, and a dyslipidemic profile. HSI differed significantly between H. pylori positive and negative subjects (median 33.2, interquartile range (IQR) 30.0-36.2 for H. pylori-positive vs median 32.6, IQR 29.8-36.0 for negative participants, P = 0.005), but NAFLD-LSF did not [median -1.7, IQR -2.4 - -0.7 vs median -1.8, IQR -2.4-(-0.7), respectively, P = 0.122]. The percentage of people with NAFLD did not differ between infected and uninfected groups: HIS, 26.9% vs 27.1%, P = 0.173; NAFLD-LFS, 23.5% vs 23.1%, P = 0.778. H. pylori infection was not a risk factor, but C-reactive protein concentration and smoking were significant risk factors for ***: H. pylori infection is not a risk factor for NAFLD as indicated by HSI or NAFLD-LFS. Prospective, large-scale studies involving liver biopsies should be considered.

关键词： Helicobacter pylori Nonalcoholic fatty liver disease Hepatic steatosis index Nonalcoholic fatty liver disease liver fat score Urea breath test