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SIRT1-dependent modulation of methylation and acetylation of histone H3 on lysine 9(H3K9)in the zygotic pronuclei improves porcine embryo development

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Journal of Animal Science and Biotechnology 2018年第2期9卷 339-350页

作者： Katerina Adamkova young-joo Yi Jaroslav Petr Tereza Zalmanova Kristyna Hoskova Pavla Jelinkova Jiri Moravec Milena Kralickova Miriam Sutovsky Peter Sutovsky Jan Nevoral Department of Veterinary Sciences Faculty of AgricultureFood and Natural ResourcesCzech University of Life Sciences Prague6-SuchdolPragueCzech Republic Division of Biotechnology SafetyEnvironment and Life Science InstituteCollege of Environmental and Bioresource SciencesChonbuk National UniversityIksan 54596South Korea Institute of Animal Science 10-UhrinevesPragueCzech Republic Proteomic Laboratory Biomedical Center of Faculty of Medicine in PilsenCharles UniversityPilsenCzech Republic Laboratory of Reproductive Medicine of Biomedical Center Charles UniversityPilsenCzech Republic Department of Histology and Embryology Faculty of Medicine in PilsenCharles UniversityPilsenCzech Republic Division of Animal Science University of MissouriColumbiaMOUSA Departments of Obstetrics Gynecology and Women’s HealthUniversity of MissouriColumbiaMOUSA

Background: The histone code is an established epigenetic regulator of early embryonic development in *** lysine residue K9 of histone H3(H3 K9) is a prime target of SIRT1, a member of NAD+-dependent histone deacetylase family of enzymes targeting both histone and non-histone substrates. At present, little is known about SIRT1-modulation of H3 K9 in zygotic pronuclei and its association with the success of preimplantation embryo development. Therefore, we evaluated the effect of SIRT1 activity on H3 K9 methylation and acetylation in porcine zygotes and the significance of H3 K9 modifications for early embryonic ***: Our results show that SIRT1 activators resveratrol and BML-278 increased H3 K9 methylation and suppressed H3 K9 acetylation in both the paternal and maternal pronucleus. Inversely, SIRT1 inhibitors nicotinamide and sirtinol suppressed methylation and increased acetylation of pronuclear H3 K9. Evaluation of early embryonic development confirmed positive effect of selective SIRT1 activation on blastocyst formation rate(5.2 ± 2.9% versus 32.9 ± 8.1% in vehicle control and BML-278 group, respectively; P ≤ 0.05). Stimulation of SIRT1 activity coincided with fluorometric signal intensity of ooplasmic ubiquitin ligase MDM2, a known substrate of SIRT1 and known limiting factor of epigenome ***: We conclude that SIRT1 modulates zygotic histone code, obviously through direct deacetylation and via non-histone targets resulting in increased H3 K9 me3. These changes in zygotes lead to more successful pre-implantation embryonic development and, indeed, the specific SIRT1 activation due to BML-278 is beneficial for in vitro embryo production and blastocyst achievement.

关键词： Embryonic development Epigenetics H3K9 methylation SIRT1 Sirtuin

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Primary needle-knife fistulotomy for preventing post-endoscopic retrograde cholangiopancreatography pancreatitis:Importance of the endoscopist’s expertise level

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World Journal of Clinical Cases 2021年第17期9卷 4166-4177页

作者： Sung Yong Han Dong Hoon Baek Dong Uk Kim Chang joon Park young joo Park Moon Won Lee Geun Am Song Division of Gastroenterology and Hepatology Internal Medicine and Biomedical Research InstitutePusan National University HospitalBusan 49241South Korea

BACKGROUND Needle-knife fistulotomy(NKF)is used as a rescue technique for difficult ***,the data are limited regarding the use of NKF for primary biliary cannulation,especially when performed by *** To assess the effectiveness and safety of primary NKF for biliary cannulation,and the role of the endoscopist’s expertise level(beginner vs expert).METHODS We retrospectively evaluated the records of 542 patients with naïve prominent bulging papilla and no history of pancreatitis,who underwent bile duct cannulation at a tertiary referral *** patients were categorized according to the endoscopist’s expertise level and the technique used for bile duct *** assessed the rates of successful cannulation and adverse *** The baseline characteristics did not differ between the experienced and lessexperienced *** incidence rate of post-endoscopic retrograde cholangiopancreatography(ERCP)pancreatitis(PEP)was significantly affected by the endoscopist’s expertise level in patients who received conventional cannulation with sphincterotomy(8.9%vs 3.4%for beginner vs expert,P=0.039),but not in those who received *** the multivariable analysis,a lower expertise level of the biliary endoscopist(P=0.037)and longer total procedure time(P=0.026)were significant risk factor of PEP in patients who received conventional cannulation with sphincterotomy but only total procedure time(P=0.004)was significant risk factor of PEP in those who received *** Primary NKF was effective and safe in patients with prominent and bulging ampulla,even when performed by less-experienced *** need to confirm which level of endoscopist’s experience is needed for primary NKF through prospective randomized study.

关键词： Needle-knife fistulotomy Primary biliary cannulation Endoscopic retrograde cholangiopancreatography Expertise levels Pancreatitis

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Acute distal common bile duct angle is risk factor for postendoscopic retrograde cholangiopancreatography pancreatitis in beginner endoscopist

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World Journal of Clinical Cases 2020年第1期8卷 20-28页

作者： Sung Yong Han Dong Uk Kim Moon Won Lee young joo Park Dong Hoon Baek Gwang Ha Kim Geun Am Song Division of Gastroenterology Department of Internal Medicine and Biomedical Research Institute Pusan National University Hospital

BACKGROUND Post-endoscopic retrograde cholangiopancreatography(ERCP)pancreatitis(PEP)is a critical and poorly managed complication of *** need to understand the risk factors for ***,the majority of studies investigating ERCP-related risk factors have included well-trained endoscopists,with the issue of endoscopist experience on PEP incidence not having been systematically *** To explore the risk factors for PEP in beginner endoscopists without *** We performed a retrospective analysis of 293 patients,with naïve papilla and no history of pancreatitis,treated using bile duct *** were classified according to the endoscopist’s experience(beginner vs expert).The angle of the distal common bile duct(CBD)was measured as the angle between the lower wall of the bile duct and a vertical line extending to the lower wall of the bile duct on coronal view computed *** After propensity matching,there were no differences between patients treated by the expert and beginner endoscopist with regard to age,sex,mean bile duct dilatation,and ratio of benign *** distal CBD angle was classified as acute(>30º)or obtuse(≤30º),based on the mean angle of 29.9ºfor the *** acute distal CBD angle was a significant risk factor for PEP for beginner(P=0.049),but not *** For beginner endoscopists first performing unsupervised ERCP,cases with an obtuse distal CBD angle may be more appropriate to lower the risk of PEP.

关键词： Common bile duct angle Endoscopic retrograde cholangiopancreatography Novice learner Pancreatitis Risk factor Begginer endoscopist

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Gut microbiome composition can predict the response to nivolumab in advanced hepatocellular carcinoma patients

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World Journal of Gastroenterology 2021年第42期27卷 7340-7349页

作者： Min-Woo Chung Moon-Ju Kim Eun Jeong Won Yu Jeong Lee Yong-Woon Yun Sung Bum Cho young-Eun joo Jun-Eul Hwang Woo Kyun Bae Ik-joo Chung Myung Geun Shin Jong Hee Shin Department of Internal Medicine Chonnam National University Hospital and College of MedicineHwasun 58128Jeollanam-doSouth Korea Department of Parasitology and Tropical Medicine Chonnam National University Medical SchoolHwasun 58128Jeollanam-doSouth Korea Department of Laboratory Medicine Chonnam National University Hwasun HospitalHwasun 58128Jeollanam-doSouth Korea Department of Preventive Medicine Chonnam National University Medical SchoolHwasun-eupHwasun 58128Jeollanam-doSouth Korea Department of Laboratory Medicine Chonnam National University HospitalGwangju 61469South Korea

BACKGROUND Immunotherapy has revolutionized the clinical outcomes of intractable cancer *** is known about the intestinal nonpathogenic bacterial composition of hepatocellular carcinoma(HCC)patients treated by *** To determine whether there is a correlation between gut bacterial composition and prognosis in HCC *** From September 2019 to March 2020,we prospectively collected fecal samples and examined the gut microbiome of 8 advanced HCC patients treated with nivolumab as a second-or third-line systemic *** samples were collected before the start of *** samples of patients with progression during treatment were collected at the time of progression,and fecal samples of patients who showed good response to nivolumab were collected after 5-7 mo as *** data from 16S ribosomal RNA sequencing were analyzed using CLC Genomics *** data were analyzed according to therapeutic *** All 8 patients were male,of which 6 had underlying chronic hepatitis B.A higher Shannon index was found in the responders than in the non-responders after nivolumab therapy(P=0.036).The unweighted beta diversity analysis also showed that the overall bacterial community structure and phylogenetic diversity were clearly distinguished according to therapeutic *** was no significant difference in the diversity or composition of the patient gut microbiome according to the immunotherapy *** taxa specific to therapeutic response were designated as follows:Dialister pneumosintes,Escherichia coli,Lactobacillus reteri,Streptococcus mutans,Enterococcus faecium,Streptococcus gordonii,Veillonella atypica,Granulicatella sp.,and Trchuris trichiura for the nonresponders;Citrobacter freundii,Azospirillum *** Enterococcus durans for the *** note,a skewed Firmicutes/Bacteroidetes ratio and a low Prevotella/Bacteroides ratio can serve as predictive markers of non-response,wh

关键词： Microbiome Nivolumab Firmicutes/Bacteroidetes ratio Prevotella/Bacteroides ratio Hepatocellular carcinoma Prognosis

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Ever-changing endoscopic treatment for early gastric cancer:Yesterday-today-tomorrow

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World Journal of Gastroenterology 2014年第37期20卷 13273-13283页

作者： Mi-young Kim Jun-Hyung Cho joo young Cho Digestive Disease Center Soonchunhyang University Hospital

Endoscopic resection has been an optimal treatment for selected patients with early gastric cancer(EGC) based on advances in endoscopic instruments and techniques. As endoscopic submucosal dissection(ESD) has been widely used for treatment of EGC along with expanding ESD indication, concerns have been asked to achieve curative resection for EGC while guaranteeing precise prediction of lymph node metastasis(LNM). Recently, new techniques including ESD or endoscopic full-thickness resection combined with sentinel node navigation enable minimal tumor resection and a laparoscopic lymphadenectomy in cases of EGC with high risk of LNM. This review covers the development and challenges of endoscopic treatment for EGC. Moreover, a new microscopic imaging and endoscopic techniques for precise endoscopic diagnosis and minimally invasive treatment of EGC are introduced.

关键词： Confocal laser endomicroscopy Sentinel node naviga

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Estimated prevalence and trends in smoking among adolescents in South Korea,2005-2021:a nationwide serial study

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World Journal of Pediatrics 2023年第4期19卷 366-377页

作者： Hyoin Shin Sangil Park Hyunju Yon Chae Yeon Ban Stephen Turner Seong Ho Cho Youn Ho Shin Jung U.Shin Ai Koyanagi Louis Jacob Lee Smith Chanyang Min young joo Lee So young Kim Jinseok Lee Rosie Kwon Min Ji Koo Guillaume Fond Laurent Boyer Jong Woo Hahn Namwoo Kim Sang Youl Rhee Jae Il Shin Ho Geol Woo Hyeowon Park Hyeon Jin Kim Yoonsung Lee Man S.Kim Eléa Lefkir Vlasta Hadalin Jungwoo Choi Seung Won Lee Dong Keon Yon Sunyoung Kim Department of Medicine Kyung Hee University College of MedicineSeoulSouth Korea Department of Neurology Kyung Hee University College of MedicineSeoulSouth Korea Maternity and Child Health Division NHS Grampian AberdeenAberdeenUK Division of Allergy-Immunology University of South Florida Morsani College of MedicineTampaFLUSA Department of Pediatrics CHA Gangnam Medical CenterCHA University School of MedicineSeoulSouth Korea Department of Dermatology CHA Bundang Medical CenterCHA University School of MedicineSeongnamSouth Korea Research and Development Unit Parc Sanitari Sant Joan de DeuCIBERSAMISCIIIBarcelonaSpain Catalan Institution for Research and Advanced Studies(ICREA) Pg.Lluis CompanysBarcelonaSpain Faculty of Medicine University of Versailles Saint-Quentin-en-YvelinesMontigny-Le-BretonneuxFrance Centre for Health Performance and WellbeingAnglia Ruskin UniversityCambridgeUK Center for Digital Health Medical Science Research InstituteKyung Hee University Medical CenterKyung Hee University College of Medicine23 Kyungheedae-RoDongdaemun-GuSeoul02447South Korea Department of Obstetrics and Gynecology Kyung Hee University College of MedicineSeoulSouth Korea Department of Otorhinolaryngology-Head and Neck Surgery CHA Bundang Medical CenterCHA University School of MedicineSeongnamSouth Korea Department of Biomedical Engineering Kyung Hee UniversityYonginSouth Korea Department of Biomedical Engineering University of MichiganAnn ArborMIUSA Department of Human Biology University of TorontoTorontoONCanada AP-HM Aix-Marseille Univ.CEReSS—Health Service Research and Quality of Life CenterMarseilleFrance FondaMental Foundation CreteilFrance Department of Pediatrics Seoul National University College of MedicineSeoulSouth Korea Department of Neuropsychiatry Seoul National University College of MedicineSeoulSouth Korea Department of Endocrinology and Metabolism Kyung Hee University School of MedicineSeoulSouth Korea Department of Pediatrics Yonsei University College of

Background Although smoking is classified as a risk factor for severe COVID-19 outcomes,there is a scarcity of studies on prevalence of smoking during the COVID-19 ***,this study aims to analyze the trends of prevalence of smoking in adolescents over the COVID-19 pandemic *** The present study used data from middle to high school adolescents between 2005 and 2021 who participated in the Korea Youth Risk Behavior Web-based Survey(KYRBS).We evaluated the smoking prevalence(ever or daily)by year groups and estimated the slope in smoking prevalence before and during the *** A total of 1,137,823 adolescents participated in the study[mean age,15.04 years[95%confidence interval(CI)15.03-15.06];and male,52.4%(95%CI 51.7-53.1)].The prevalence of ever smokers was 27.7%(95%CI 27.3-28.1)between 2005 and 2008 but decreased to 9.8%(95%CI 9.3-10.3)in 2021.A consistent trend was found in daily smokers,as the estimates decreased from 5.4%(95%CI 5.2-5.6)between 2005 and 2008 to 2.3%(95%CI 2.1-2.5)in ***,the downward slope in the overall prevalence of ever smokers and daily smokers became less pronounced in the COVID-19 pandemic period than in the pre-pandemic *** the subgroup with substance use,the decreasing slope in daily smokers was significantly more pronounced during the pandemic than during the pre-pandemic *** The proportion of ever smokers and daily smokers showed a less pronounced decreasing trend during the *** findings of our study provide an overall understanding of the pandemic's impact on smoking prevalence in adolescents.

关键词： Adolescent COVID-19 Daily smokers Ever smokers Pandemic Smoking

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Plasma levels of acylated ghrelin in patients with functional dyspepsia

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World Journal of Gastroenterology 2012年第18期18卷 2231-2237页

作者： Yeon Soo Kim joon Seong Lee Tae Hee Lee joo young Cho Jin Oh Kim Wan Jung Kim Hyun Gun Kim Seong Ran Jeon Hoe Su Jeong Department of Internal Medicine Hallym University College of MedicineChuncheon Sacred Heart HospitalGangwon-do 200-704South Korea Department of Internal Medicine Soonchunhyang University College of MedicineSoonchunhyang University HospitalSeoul 140-743South Korea Department of Anatomy and Cell Biology Hanyang University College of Medicine222 Wangsimni-roSeongdong-guSeoul 133-792South Korea

AIM:To investigate the relationship between plasma acylated ghrelin levels and the pathophysiology of functional ***:Twenty-two female patients with functional dyspepsia and twelve healthy volunteers were recruited for the *** functional dyspepsia patients were each diagnosed based on the Rome Ⅲ *** patients completed a questionnaire concerning the severity of 10 *** acylated ghrelin levels before and after a meal were determined in the study participants using a commercial human acylated enzyme immunoassay kit;electrogastrograms were performed for 50 min before and after a standardized 10-min meal containing 265 ***:There were no significant differences in plasma acylated ghrelin levels between healthy volunteers and patients with functional ***,in patients with functional dyspepsia,there was a negative correlation between fasting plasma acylated ghrelin levels and the sum score of epigastric pain(r =-0.427,P = 0.047) and a positive correlation between the postprandial/fasting plasma acylated ghrelin ratio and the sum score of early satiety(r = 0.428,P =0.047).Additionally,there was a negative correlation between fasting acylated ghrelin plasma levels and fasting normogastria(%)(r =-0.522,P = 0.013).Interestingly,two functional dyspepsia patients showed paradoxically elevated plasma acylated ghrelin levels after the ***:Abnormal plasma acylated ghrelin levels before or after a meal may be related to several of the dyspeptic symptoms seen in patients with functional dyspepsia.

关键词： ghrelin 消化不良酰化酶血浆患者浆水免疫检测试剂盒不良症状

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Paeonol attenuates inflammation-mediated neurotoxicity and microglial activation

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Neural Regeneration Research 2013年第18期8卷 1637-1643页

作者： Kyong Nyon Nam Byung-Cheol Woo Sang-Kwan Moon Seong-Uk Park joo-young Park Jae-Woong Hwang Hyung-Sup Bae Chang-Nam Ko Eunjoo Hwang Lee Graduate School of East-West Medical Science Kyung Hee University Department of Cardiovascular & Neurologic Diseases (Stroke Center) Hospital of Oriental Medicine Kyung Hee University

Chronic activation of microglial cells endangers neuronal survival through the release of various proinflammatory and neurotoxic factors. The root of Paeonia lactiflora Pall has been considered useful for the treatment of various disorders in traditional oriental medicine. Paeonol, found in the root of Paeonia lactiflora Pall, has a wide range of pharmacological functions, including anti-oxidative, anti-inflammatory and neuroprotective activities. The objective of this study was to examine the efficacy of paeonol in the repression of inflammation-induced neurotoxicity and microglial cell activation. Organotypic hippocampal slice cultures and primary microglial cells from rat brain were stimulated with bacterial lipopolysaccharide. Paeonol pretreatment was performed for 30 minutes prior to lipopolysaccharide addition. Cell viability and nitrite （the production of nitric oxide）, tumor necrosis factor-alpha and interleukin-lbeta products were measured after lipopolysaccharide treatment. In organotypic hippocampal slice cultures, paeonol blocked lipopolysaccharide-related hippocampal cell death and inhibited the release of nitrite and interleukin-lbeta. Paeonol was effective in inhibiting nitric oxide release from primary microglial cells. It also reduced the lipopolysaccharide-stimulated release of tumor necrosis factor-alpha and intefleukin-1β from microglial cells. Paeonol possesses neuroprotective activity in a model of inflammation-induced neurotoxicity and reduces the release of neurotoxic and proinflammatory factors in activated microglial cells.

关键词： neural regeneration traditional Chinese medicine brain inflammation interleukin-lbeta microglia neurotoxicity neuroprotection nitric oxide organotypic hippocampal slice culture Paeonia lactifloraPall paeonol tumor necrosis factor-alpha neuroregeneration

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Mitochondria-targeting drug conjugates for cytotoxic, anti-oxidizing and sensing purposes:current strategies and future perspectives

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Acta Pharmaceutica Sinica B 2018年第6期8卷 862-880页

作者： Gantumur Battogtokh Yeon Su Choi Dong Seop Kang Sang Jun Park Min Suk Shim Kang Moo Huh Yong-Yeon Cho joo young Lee Hye Suk Lee Han Chang Kang Department of Pharmacy Integrated Research Institute of Pharmaceutical Sciences and BK21 PLUS Team for Creative Leader Program for Pharmacomics-based Future Pharmacy College of Pharmacy The Catholic University of Korea Division of Bioengineering Incheon National University Department of Polymer Science and Engineering Chungnam National University

mitochondrial-targeting moieties to anticancer drugs, antioxidants and sensor molecules. Among them, the most widely applied mitochondrial targeting moiety is triphenylphosphonium(TPP), which is a delocalized cationic lipid that readily accumulates and penetrates through the mitochondrial membrane due to the highly negative mitochondrial membrane potential. Other moieties, including short peptides,dequalinium, guanidine, rhodamine, and F16, are also known to be promising mitochondrial targeting agents. Direct conjugation of mitochondrial targeting moieties to anticancer drugs, antioxidants and sensors results in increased cytotoxicity, anti-oxidizing activity and sensing activity, respectively,compared with their non-targeting counterparts, especially in drug-resistant cells. Although many mitochondria-targeted anticancer drug conjugates have been investigated in vitro and in vivo, further clinical studies are still needed. On the other hand, several mitochondria-targeting antioxidants have been analyzed in clinical phases I, II and III trials, and one conjugate has been approved for treating eye disease in Russia. There are numerous ongoing studies of mitochondria-targeted sensors.

关键词： Anticancer agents Antioxidants Direct conjugation Mitochondria-targeting Sensing agents

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Colorectal cancer mortality in Hong Kong of China,Japan,South Korea,and Singapore

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World Journal of Gastroenterology 2013年第7期19卷 979-983页

作者： Aesun Shin Kyu-Won Jung young-joo Won Cancer Registration and Statistics Branch National Cancer Control InstituteNational Cancer CenterGoyang-si 410-769South Korea Molecular Epidemiology Branch Division of Cancer Epidemiology and PreventionNational Cancer Center Research InstituteGoyang-si 410-769South Korea

To clarify the trend in colorectal cancer mortality in Asian *** analyzed the colorectal cancer mortality in four Asian countries using the World Health Organization mortality database and the Korea National Statistics Office *** annual age-standardized rates and truncated rated for the three age groups(30-49,50-69 and ≥ 70 years) for Hong Kong of China(1969-2009),Japan(1955-2009),South Korea(1985-2006),and Singapore(1966-2009) were estimated.A joinpoint regression model was used to detect significant trends in mortality *** cancer mortality in men started to decrease in 1992 in Japan followed by Singapore and Hong Kong of China in *** mortality rates in women stared to decrease in 1980 in Singapore,followed by Hong Kong of China and Japan in *** all countries and both genders,except for women in Singapore,the decrease in mortality began in the younger age *** colorectal cancer mortality in the four studied Asian countries has started to decrease,and the decrease occurred first in the younger age groups.

关键词： Colorectal cancer Mortality Joinpoint regression Trends Early detection of cancer Mass screening

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