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Clinical utility,safety and tolerability of capsule endoscopy in urban Southeast Asian population

World Journal of Gastroenterology 2003年第10期9卷 2313-2316页

作者： Tiing-Leong Ang Kwong-Ming Fock tay-meng ng Eng-Kiong Teo Yi-Lyn Tan Division of Gastroenterology Changi General HospitalSingapore

AIM:Capsule endoscopy has demonstrated its clinical utility in the evaluation of small bowel pathology in several Western *** this prospective study,we aimed to determine the clinical utility,safety and tolerability of capsule endoscopy in the evaluation of suspected small bowel disease in an urban Southeast Asian population. METHODS:We used the given (M2A) capsule endoscopy system in 16 consecutive patients with suspected small bowel *** 9 patients the indication was obscure gastrointestinal bleeding,while in 6 patients it was to determine the extent of small bowel involvement in Crohn's *** patient underwent capsule endoscopy for evaluation of chronic abdominal ***'s tolerability to the procedure was evaluated by standardized questionnaires and all patients were reviewed at one week to ensure that the capsule had been excreted without any adverse events. RESULTS:Abnormal findings were present in 8 patients (50%).The cause of obscure gastrointestinal bleeding was determined in 5 out of 9 *** included 2 cases of angiodysplasia,2 cases of jejunal ulcers and 1 case of both angiodysplasia and jejunal *** patient had small bowel erosions and loci of erythema of doubtful significance. Ileal lesions were diagnosed in 2 out of 6 patients with Crohn's *** endoscopy was well tolerated by all *** patient with Crohn's disease had a complication of capsule retention due to terminal ileum *** capsule eventually passed out spontaneously after i month. CONCLUSION:Our study,which represented the first Asian series,further confirms the diagnostic utility,safety and tolerability of wireless capsule endoscopy.

关键词： Endoscopes Adult Aged Endoscopy, Digestive System Female Humans Intestinal Diseases Intestine, Small Male Middle Aged Patient Satisfaction Prospective Studies Singapore

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A comparison of the clinical, demographic and psychiatric profiles among patients with erosive and non-erosive reflux disease in a multi-ethnic Asian country

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World Journal of Gastroenterology 2005年第23期11卷 3558-3561页

作者： Tiing-Leong Ang Kwong-Ming Fock tay-meng ng Eng-Kiong Teo Tju-Siang Chua Jessica Tan Division of Gastroenterology

AIM:To examine the clinical spectrum of gastroesophageal reflux disease (GERD) and compare erosive (ERD) with non-erosive (NERD) in terms of clinical, demographic and psychiatric profiles. METHODS: Patients with reflux symptoms were enrolled and stratified to NERD and ERD after endoscopy (LA classification). Patients with ERD presenting with dyspepsia were included. Patients on proton pump inhibitors (PPI) or H2 receptor antagonists before endoscopy were excluded. Demographic data, Helicobacter pylori(H pylori) status and presence of minor psychiatric morbidity (based on General Health Questionnaire-28) were analyzed. RESULTS: Among 690 patients screened, 533 were eligible for analysis (male to female ratio: 3:2; Chinese: 75.4%; Malay: 9.8%; Indian: 14.8%). Clinical spectrum of GERD: N: 40.5%; A: 46%; B: 9.2%; C: 2.1%; D: 0.6%; Barrett's esophagus: 1.7%. Compared to patients with NERD, patients with ERD were significantly older (45 vs 39.4 years), more likely to be male (64.4% vs 53.7%), tended to smoke (19.6% vs 9.7%), less likely to have minor psychiatric morbidity (26.4 vs 46.7%) and were more likely to respond to PPI (79.7 vs 66.8%). There was also a trend towards a higher BMI (24.5 vs 23.5). Race, alcohol consumption and H pylori status were not significant. On multivariate analysis, age and presence of minor psychiatric morbidity remained with significant differences. CONCLUSION: The majority of patients who have typical symptoms of GERD have NERD or mild erosive reflux disease. Compared to patients with erosive reflux disease, patients with NERD were younger and had a higher prevalence of minor psychiatric morbidity.

关键词： Reflux disease Clinical spectrum Psychiatric morbidity

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Epinephrine injection therapy versus a combination of epinepnrine injection and endoscopic hemoclip in the treatment of bleeding ulcers

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World Journal of Gastroenterology 2005年第7期11卷 1044-1047页

作者： Tju-Siang Chua Kwong-Ming Fock tay-meng ng Eng-Kiong Teo Jessica Yi-Lyn Tan Tiing-Leong Ang Division of Gastroenterology

AIM: To assess the efficacy of hemoclip application in combination with epinephrine injection in the treatment of bleeding peptic ulcers and to compare the clinical outcomes between patients treated with such a combination therapy and those treated with epinephrine injection ***: A total of 293 patients (211 males, 82females) underwent endoscopic therapy for bleeding peptic ulcers. Of these, 202 patients (152 males, 50females) received epinephrine injection therapy while 91patients (59 males, 32 females) received combination therapy. The choice of endoscopic therapy was made by the endoscopist. Hemostatic rates, rebleeding rates, need for emergency surgery and 30-d mortality were the outcome measures ***: Patients who received combination therapy were significantly older (mean age 66±16 years, range24-90 years) and more suffered from chronic renal failure compared to those who received epinephrine injection therapy alone (mean age 61±17 years, range 21-89 years).Failure to achieve permanent hemostasis was 4% in the group who received epinephrine injection alone and 11%in the group who received combination therapy. When the differences in age and renal function between the two treatment groups were taken into account by multivariate analysis, the rates of initial hemostasis,rebleeding rates, need for surgery and 30-d mortality for both treatment options were not significantly ***: Combination therapy of epinephrine injection with endoscopic hemoclip application is an effective method of achieving hemostasis in bleeding peptic ulcer diseases. However, superiority of combination therapy over epinephrine injection alone, could not be demonstrated.

关键词： Bleeding peptic ulcer Epinephrine Endoscopic hemoclip Combination therapy

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Cost-effective hybrid long-short read assembly delineates alternative GC-rich Streptomyces hosts for natural product discovery

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Synthetic and Systems Biotechnology 2023年第2期8卷 253-261页

作者： Elena Heng Lee Ling Tan Dillon W.P.tay Yee Hwee Lim Lay-Kien Yang Deborah C.S.Seow Chung Yan Leong Veronica ng Siew Bee ng Yoganathan Kanagasundaram Fong Tian Wong Lokanand Koduru Molecular Engineering Laboratory Institute of Molecular and Cell Biology(IMCB)Agency for ScienceTechnology and Research(A*STAR)61 Biopolis Drive#07-06ProteosSingapore138673Singapore Green Chemistry and Biocatalysis Institute of Sustainability for ChemicalsEnergy and Environment(ISCE2)Agency for ScienceTechnology and Research(A*STAR)8 Biomedical GroveNeuros#07-01Singapore138665Singapore Singapore Institute of Food and Biotechnology Innovation(SIFBI) Agency for ScienceTechnology and Research(A*STAR)31 Biopolis WayLevel 2NanosSingapore138669Singapore

With the advent of rapid automated in silico identification of biosynthetic gene clusters(BGCs),genomics pre-sents vast opportunities to accelerate natural product(NP)***,prolific NP producers,Strepto-myces,are exceptionally GC-rich(>80%)and highly repetitive within *** pose challenges in sequencing and high-quality genome assembly which are currently circumvented via intensive ***,we outline a more cost-effective workflow using multiplex Illumina and Oxford Nanopore sequencing with hybrid long-short read assembly algorithms to generate high quality *** protocol involves subjecting long read-derived assemblies to up to 4 rounds of polishing with short reads to yield accurate BGC *** successfully sequenced and assembled 8 GC-rich Streptomyces genomes whose lengths range from 7.1 to 12.1 Mb with a median N50 of 8.2 *** analysis revealed previous misrepresentation among these strains and allowed us to propose a potentially new species,Streptomyces *** comprehensive characterization of their biosynthetic,pan-genomic and antibiotic resistance features especially for molecules derived from type I polyketide synthase(PKS)BGCs reflected their potential as alternative NP ***,the genome assemblies and insights presented here are envisioned to serve as gateway for the scientific community to expand their avenues in NP discovery.

关键词： Streptomyces GC-Rich Hybrid assembly Biosynthetic gene cluster(BGC) Natural product(NP)chassis Type I polyketide Synthase(PKS)

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Students’ Perceptions of MyMathLab:An Online Learning Management System

Students’ Perceptions of MyMathLab:An Online Learning Manag...

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2012 3rd International Conference on e-Education,e-Business,e-Management and e-Learning（IC4E 2012）

作者： Check-Yee Law Lik-Neo ng Wei-Wei Goh Cheng-Lan tay Yong-Wee Sek Centre for Foundation Studies&Extension Education Multimedia University Faculty of Information and Communication Technology Universiti Teknikal Malaysia Melaka

With the evolution of web-based technologies,technology-based instructions have been partially or fully incorporated into teaching and learning *** study analyzes students’perceptions of the use of MyMathLab（MML）as a supplement in a mathematics ***,students were satisfied with the use of MML in their *** students only rated the system marginally positive,it had provided them with their first hand experience in using online learning and assessment tools.

关键词： online learning perception MyMathlab mathematics pre-university

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Foregut bypass *** bariatric procedures for nonalcoholic fatty liver disease:a meta-analysis of 3,355 individuals

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Hepatobiliary Surgery and Nutrition 2023年第5期12卷 658-670,I0001-I0003页

作者： Wen Hui Lim Snow Yunni Lin Cheng Han ng Darren Jun Hao Tan Jieling Xiao Jie Ning Yong Phoebe Wen Lin tay Nicholas Syn Yip Han Chin Kai En Chan Chin meng Khoo Nicholas Chew Roger S.Y.Foo Asim Shabbir Eunice X.Tan Daniel Q.Huang Mazen Noureddin Arun J.Sanyal Mohammad Shadab Siddiqui Mark D.Muthiah Yong Loo Lin School of Medicine National University of SingaporeSingaporeSingapore Division of Endocrinology Department of MedicineNational University HospitalSingaporeSingapore Department of Cardiology National University Heart CentreNational University HospitalSingaporeSingapore Division of General Surgery(Upper Gastrointestinal Surgery) Department of SurgeryNational University HospitalSingaporeSingapore Division of Gastroenterology and Hepatology Department of MedicineNational University HospitalSingaporeSingapore National University Centre for Organ Transplantation National University Health SystemSingaporeSingapore Cedars-Sinai Fatty Liver Program Division of Digestive and Liver DiseasesDepartment of MedicineComprehensive Transplant CenterCedars-Sinai Medical CentreLos AngelesCAUSA Division of Gastroenterology Hepatology and NutritionDepartment of Internal MedicineVirginia Commonwealth UniversityRichmondVAUSA

Background:Bariatric surgery represents an important treatment option for severely obese patients with nonalcoholic fatty liver disease(NAFLD).However,there remains inadequate data regarding the effects of different bariatric procedures on various NAFLD parameters,especially for histological ***,this meta-analysis aimed to compare the effects of restrictive bariatric procedures and foregut bypass on the metabolic,biochemical,and histological parameters for patients with ***:Medline and Embase were searched for articles relating to bariatric procedures and *** meta-analysis was conducted to compare efficacy of bariatric procedures ***-procedure with subgroup analysis to further compare restrictive against foregut bypass ***:Thirty-one articles involving 3,355 patients who underwent restrictive bariatric procedures(n=1,460)and foregut bypass(n=1,895)were *** foregut bypass(P<0.01)and restrictive procedures(P=0.03)significantly increased odds of fibrosis *** to restrictive procedures,foregut bypass resulted in a borderline non-significant decrease in fibrosis score(P=0.06)and significantly lower steatosis score(P<0.001).For metabolic parameters,foregut bypass significantly lowered body mass index(P=0.003)and low-density lipoprotein(P=0.008)compared to restrictive *** significant differences were observed between both procedures for aspartate aminotransferase(P=0.17)and alkaline phosphatase(P=0.61).However,foregut bypass resulted in significantly lower gamma-glutamyl transferase than restrictive procedures(P=0.01)while restrictive procedures resulted in significantly lower alanine transaminase than foregut bypass(P=0.02).Conclusions:The significant histological and metabolic advantages and comparable improvements in biochemical outcomes support the choice of foregut bypass over restrictive bariatric procedures in NAFLD management.

关键词： Bariatric surgery non-alcoholic fatty liver disease(NAFLD) obesity fibrosis endoscopy

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采用分子生物学技术分析不同施肥土壤中细菌多样性

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中国农业科学 2005年第12期38卷 2474-2480页

作者：吴展才余旭胜徐源泰台湾大学园艺学研究所台湾大学园艺学研究所台北10600

本研究探讨在小白菜栽培时,分别添加果蔬加工废弃物生产的堆肥和化肥对土壤微生物区系的影响。利用扩增16SrRNA基因来比较微生物群落的技术,分离出所有群落DNA,再以此DNA为模板,以专一性引物扩增出16SrRNA基因(rDNA)。随后建立16SrDNA... 详细信息

本研究探讨在小白菜栽培时,分别添加果蔬加工废弃物生产的堆肥和化肥对土壤微生物区系的影响。利用扩增16SrRNA基因来比较微生物群落的技术,分离出所有群落DNA,再以此DNA为模板,以专一性引物扩增出16SrRNA基因(rDNA)。随后建立16SrDNA基因文库后,再以计算机仿真的方式,选出能将上述引物扩增的16SrDNA基因中间切割成片段长度范围集中的一组限制性内切酶——AciI、BstUI、和RsaI。结果表明,无施肥土壤与添加堆肥土壤中微生物较接近。无施肥、添加堆肥、添加化肥土壤三者的微生物多样性指数分别为0.990、0.986和0.962;均匀度为0.979、0.977和0.931。

关键词：堆肥化肥土壤微生物多样性均匀度

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Liver resection versus liver transplantation for hepatocellular carcinoma within Milan criteria:a meta-analysis of 18,421 patients

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Hepatobiliary Surgery and Nutrition 2022年第1期11卷 78-93,I0009-I0013页

作者： Jin Hean Koh Darren Jun Hao Tan Yuki Ong Wen Hui Lim Cheng Han ng Phoebe Wen Lin tay Jie Ning Yong Mark D.Muthiah Eunice X.Tan Ning Qi Pang Beom Kyung Kim Nicholas Syn Alfred Kow Brian K.P.Goh Daniel Q.Huang Yong Loo Lin School of Medicine National University of SingaporeSingaporeSingapore Division of Gastroenterology and Hepatology Department of MedicineNational University HospitalSingaporeSingapore National University Centre for Organ Transplantation National University Health SystemSingaporeSingapore Division of Hepatobiliary&Pancreatic Surgery Department of SurgeryNational University HospitalSingaporeSingapore Department of Internal Medicine Yonsei University College of MedicineSeoulRepublic of Korea Yonsei Liver Center Severance HospitalYonsei University Health SystemSeoulRepublic of Korea Biostatistics and Modelling Domain Saw Swee Hock School of Public HealthNational University of Singapore and National University Health SystemSingaporeSingapore Department of Hepato-Pancreato-Biliary and Transplant Surgery Division of SurgerySingapore General HospitalSingaporeSingapore Liver Transplant Service SingHealth Duke-NUS Transplant CentreSingaporeSingapore

Background:Outcomes after liver resection(LR)and liver transplantation(LT)for hepatocellular carcinoma(HCC)are heterogenous and may vary by region,over time periods and disease *** aimed to compare overall survival(OS)and disease-free survival(DFS)between LT versus LR for HCC within the Milan ***:Two authors independently searched Medline and Embase databases for studies comparing survival after LT and LR for patients with HCC meeting the Milan ***-analyses and meta-regression were conducted using random-effects ***:We screened 2,278 studies and included 35 studies with 18,421 *** was associated with poorer OS[hazard ratio(HR)=1.44;95%confidence interval(CI):1.14-1.81;Pngs among intention-to-treat(ITT)*** uninodular disease,OS in LR was comparable to LT(P=0.13)but DFS remained poorer(HR=2.95;95%CI:2.30-3.79;Png usual surveillance had worse OS after LR(HR=1.95;95%CI:1.24-3.07;P<0.01).Conclusions:Mortality after LR for HCC is nearly 50%higher compared to *** between LR and LT were similar in uninodular *** risk of recurrence after LR is threefold that of LT.

关键词： Hepatocellular carcinoma(HCC) liver resection(LR) liver transplant survival recurrence

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Outcomes of combination MRI-targeted and transperineal template biopsy in restaging low-risk prostate cancer for active surveillance

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Asian Journal of Urology 2018年第3期5卷 184-193页

作者： Kenneth Chen Kae Jack tay Yan Mee Law Hakan Aydin Henry Ho Christopher Cheng John Shyi Peng Yuen Department of Urology Singapore General HospitalSingapore Department of Diagnostic Radiology Singapore General HospitalSingapore Department of Pathology Singapore General HospitalSingapore

Objective:Active surveillance(AS)offers a strategy to reduce overtreatment and now is a widely accepted treatment option for low-risk prostate *** ideal tool for risk-stratification would detect aggressive cancers and exclude such men from taking up AS in the first *** evaluate if a combination of transperineal template biopsy with magnetic resonance imaging(MRI)-targeted biopsy identifies significant prostate cancer amongst men initially diagnosed with low-risk prostate ***:This prospective,single-blinded study included men with low-risk prostate cancer(D’Amico’s Criteria)diagnosed on conventional transrectal ultrasound-guided *** first underwent multiparametric MRI of the prostate6 weeks after initial *** suspicious lesion is mapped and assigned a Prostate Imaging Reporting and Data System(PIRADS)*** biopsy is first performed with the surgeon blinded to MRI findings followed by MRI-targeted biopsy using a robotic transperineal biopsy ***:The age of the 19 men included is 65.4±4.9 years(mean±SD).Prostate specific antigen(PSA)at diagnosis and at the time of transperineal biopsy were comparable(7.3±1.7 ng/mL and 7.0±1.8 ng/mL,p Z 0.67),so were prostate volumes(34.2±8.9 mL and 32.1±13.4 mL,p Z 0.28).MRI-targeted biopsy had a higher percentage of cancer detection per core compared to template biopsy(11.7%vs.6.5%,p Z 0.02),this was more than 3 times superior for Gleason 7 disease(5.9%vs.1.6%,p<0.01).Four of 18(22.2%)patients with MRI lesions had significant disease with MRI-targeted biopsy *** of 19 patients(15.8%)had significant disease with template biopsy *** combination,both techniques upclassified five patients(26.3%),all of whom underwent radical *** mount histology confirmed tumour location and *** six patients with PIRADS 5 lesions had cancer detected(66.6%significant disease).Conclusion:A combination of MRI-targeted and template biopsy may optimally risk-classi

关键词： Active surveillance Magnetic resonance imaging Targeted biopsy Transperineal prostate biopsy Robotic biopsy Low-risk prostate cancer

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A Class Effect Network Meta-analysis of Lipid Modulation in Non-alcoholic Steatohepatitis for Dyslipidemia

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Journal of Clinical and Translational Hepatology 2022年第6期10卷 1042-1049页

作者： Jieling Xiao Cheng-Han ng Yip-Han Chin Darren Jun Hao Tan Wen-Hui Lim Grace Lim Jingxuan Quek Ansel Shao Pin Tang Kai-En Chan Rou-Yi Soong Nicholas Chew Benjamin tay Daniel Q.Huang Nobuharu Tamaki Roger Foo Mark Y.Chan Mazen Noureddin Mohammad Shadab Siddiqui Arun J.Sanyaland Mark D.Muthiah Yong Loo Lin School of Medicine National University of SingaporeSingapore Lee Kong Chian School of Medicine Nan-yang Technological UniversitySingapore Department of Cardiology National University Heart CenterNational University HospitalSingapore Division of Gastroenterology and Hepatology Department of MedicineNational University HospitalSingaporeSingapore National University Center for Organ Transplantation National University Health SystemSingapore NAFLD Research Center Division of Gastroenterology and HepatologyDepartment of MedicineUniversity of California at San DiegoLa JollaCAUSA Department of Gastroenterology and Hepatology Musashino Red Cross HospitalTokyoJapan Cedars-Sinai Fatty Liver Program Division of Digestive and Liver DiseasesDepartment of MedicineComprehen-sive Transplant CenterCedars-Sinai Medical CenterLos AngelesCAUSA Division of Gastroenterology Hepatology and NutritionDepartment of Internal MedicineVirginia Commonwealth UniversityRichmondVAUSA

Background and Aims:Pharmaceutical therapy for NASH is associated with lipid modulation,but the consensus on drug treatment is limited and lacks comparative analysis of effectiveness.A network meta-analysis was conducted to compare NASH drug classes in lipid ***:Online databases were searched for randomized controlled trails(RCTs)evaluating NASH treatments in biopsy-proven NASH *** were classified into four groups:(1)inflammation,(2)energy,(3)bile acids,and(4)fibro-sis based on the mechanism of action.A Bayesian network analysis was conducted with outcome measured by mean difference(MD)with credible intervals(Crl)and surface un-der the cumulative ranking curve(SUCRA).Results:Forty-four RCTs were included in the *** acid modulat-ing treatments(MD:0.05,Crl:0.03-0.07)were the best treatment for improvement in high-density lipid(HDL)cho-lesterol,followed by treatments modulating energy(MD:0.03,Crl:0.02-0.04)and fibrosis(MD:0.01,Crl:−0.12 to 0.14)compared with *** top three treatments for reduction in triglycerides were treatments modulating energy(MD:−0.46,Crl:−0.49 to−0.43),bile acids(MD:−0.22,Crl:−0.35 to−0.09),and inflammation(MD:−0.08,Crl:−0.13 to−0.03)compared with *** found treatment modulating fibrosis(MD:−1.27,Crl:−1.76 to−0.79)was the best treatment for reduction in low-density lipid(LDL)cholesterol followed by treatment modulating in-flammation(MD:−1.03,Crl:−1.09 to−0.97)and energy(MD:−0.37,Crl:−0.39 to−0.34)compared with placebo,but LDL cholesterol was worsened by treatments modulat-ing bile ***:Network analysis comparing the class effects of dyslipidemia modulation in NASH found that treatment targets can include optimization of athero-genic *** studies are required to evaluate the cardiovascular outcomes.

关键词： Lipid modulation NASH Dyslipidemia

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