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1562篇 您的检索式:作者名="Murphy T"
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1Prolonged high-fat-diet feeding promotes non-alcoholic fatty liver disease and alters gut microbiota in mice显示文摘BACKGROUND Non-alcoholic fatty liver disease (NAFLD) has become an epidemic largely due to the worldwide increase in obesity. While lifestyle modifications and pharmacotherapies have been used to alleviate NAFLD, successful treatment options are limited. One of the main barriers to finding safe and effective drugs for long-term use in NAFLD is the fast initiation and progression of disease in the available preclinical models. Therefore, we are in need of preclinical models that (1) mimic the human manifestation of NAFLD and (2) have a longer progression time to allow for the design of superior treatments. AIM To characterize a model of prolonged high-fat diet (HFD) feeding for investigation of the long-term progression of NAFLD. METHODS In this study, we utilized prolonged HFD feeding to examine NAFLD features in C57BL/6 male mice. We fed mice with a HFD (60% fat, 20% protein, and 20% carbohydrate) for 80 wk to promote obesity (Old-HFD group, n = 18). A low-fat diet (LFD)(14% fat, 32% protein, and 54% carbohydrate) was administered for the same duration to age-matched mice (Old-LFD group, n = 15). An additional group of mice was maintained on the LFD (Young-LFD, n = 20) for a shorter duration (6 wk) to distinguish between age-dependent and age-independent effects. Liver, colon, adipose tissue, and feces were collected for histological and molecular assessments.RESULTS Prolonged HFD feeding led to obesity and insulin resistance. Histological analysis in the liver of HFD mice demonstrated steatosis, cell injury, portal and lobular inflammation and fibrosis. In addition, molecular analysis for markers of endoplasmic reticulum stress established that the liver tissue of HFD mice have increased phosphorylated Jnk and CHOP. Lastly, we evaluated the gut microbial composition of Old-LFD and Old-HFD. We observed that prolonged HFD feeding in mice increased the relative abundance of the Firmicutes phylum. At the genus level, we observed a significant increase in the abundance of Adercreutzia, Coprococcus, Dorea, and Ruminococcus and decreased relative abundance of Turicibacter and Anaeroplasma in HFD mice. CONCLUSION Overall, these data suggest that chronic HFD consumption in mice can mimic pathophysiological and some microbial events observed in NAFLD patients.Kandy T Velázquez Reilly T Enos Jackie E Bader Alexander T Sougiannis Meredith S Carson Ioulia Chatzistamou James A Carson Prakash S Nagarkatti Mitzi Nagarkatti E Angela Murphy 2019World Journal of Hepatology2019,11,8:6
2Risk factors for Barrett’s oesophagus and oesophageal adenocarcinoma:Results from the FINBAR study显示文摘AIM:To investigate risk factors associated with Barrett's oesophagus and oesophageal adenocarcinoma.METHODS:This all-Ireland population-based case-control study recruited 224 Barrett's oesophagus patients,227 oesophageal adenocarcinoma patients and 260 controls.All participants underwent a structured interview with information obtained about potential lifestyle and environmental risk factors.RESULTS:Gastro-oesophageal reflux was associated with Barrett's [OR 12.0(95% CI 7.64-18.7)] and oesophageal adenocarcinoma [OR 3.48(95% CI 2.25-5.41)].Oesophageal adenocarcinoma patients were more likely than controls to be ex-or current smokers [OR 1.72(95% CI 1.06-2.81)and OR 4.84(95% CI 2.72-8.61)respectively] and to have a high body mass index [OR 2.69(95% CI 1.62-4.46)].No significant associations were observed between these risk factors and Barrett's oesophagus.Fruit but not vegetables were negatively associated with oesophageal adenocarcinoma [OR 0.50(95% CI 0.30-0.86)].CONCLUSION:A high body mass index,a diet low in fruit and cigarette smoking may be involved in the progression from Barrett's oesophagus to oesophageal adenocarcinoma.Lesley A Anderson RG Peter Watson Seamus J Murphy Brian T Johnston Harry Comber Jim Mc Guigan John V Reynolds Liam J Murray 2007World Journal of Gastroenterology2007,13,10:5
3Have patients with esophagitis got an increased risk of adenocarcinoma? Results from a population-based study显示文摘AIM: To examine an increased risk of esophageal adenocarcinoma is restricted to patients who develop Barrett's esophagus or whether esophagitis per se is a risk factor for adenocarcinoma.METHODS: A population-based cohort of patients with histological evidence of esophagitis without Barrett's esophagus was constructed using electronic pathology reports relating to all esophageal biopsies in Northern Ireland between 1993 and 1996. Person-years of followup and incident cases of esophageal cancer were calculated by linking the cohort to death files and the Northern Ireland Cancer Registry records. Standardized incidence ratios (SIR) were calculated for esophageal cancers (adenocarcinoma, squamous cell carcinoma (SCC), and histologically unspecified cancers).RESULTS: A total of 2 013 patients in the cohort provided 13 559 patient-years of follow-up (mean follow-up 6.7 years). None of the patients developed adenocarcinoma. Three patients developed SCC, and six developed histologically unspecified cancers. The SIR for all esophageal cancers and for SCC were 2.73 (95%CI 1.25-5.19) and 2.93 (95%CI 0.61-8.59), respectively. In a sensitivity analysis in which all unspecified esophageal cancers were treated as adenocarcinomas, the SIR for adenocarcinoma was 2.64 (0.97-5.75).CONCLUSION: The risk of adenocarcinoma is not elevated in patients with histological evidence of esophagitis without Barrett's esophagus; however, these patients may have a moderately increased risk of SCC.Further studies are required to confirm these findings,which suggest that Barrett's esophagus, not esophagitis,is the key precursor lesion in the development of adenocarcinoma.Seamus J Murphy Lesley A Anderson Brian T Johnston Deirdre A Fitzpatrick Peter RG Watson Pauline Monaghan Liam J Murray 2005World Journal of Gastroenterology2005,11,46:4
4CD133 expression is not restricted to stem cells, and both CD133^sup +^ and CD133^sup -^ metastatic colon cancer cells initiate tumors显示文摘Shmelkov Sergey V Butler Jason M Hooper Andrea T Hormigo Adilia Kushner Jared Milde Till Clair Ryan St Baljevic Muhamed White Ian Jin David K Chadburn Amy Murphy Andrew J Valenzuela David M Gale Nicholas W Thurston Gavin Yancopoulos George 2008Journal of Clinical Investigation2008,,:2
5Migration of retinal pigment epithelium cells in vitro is regulated by protein kinase C显示文摘Murphy TL Sakamoto T Hinton DR 1995Exp Eye Res1995,60,6:2
6接受心脏手术的成人患者的体质量指数与死亡率:全国研究的系统评价和荟萃分析显示文摘接受心脏手术的肥胖患者的发病率和死亡率较低,该现象显然不合理,相关机制不明。该研究试图确定在心脏手术中观察到的这个肥胖悖论是否归因于逆流行病学、偏倚或混杂因素。方法:从英国国家成人心脏外科登记处提取自2002年4月至2013年3月期间进行的所有心脏外科手术数据。同时对至2015年6月Medline,Embase,Scopus,刘莉 叶鹏 Mariscalco G Wozniak MJ Dawson AG Serraino GF Porter R Nath M Klersy C Kumar T Murphy GJ 2017中华高血压杂志2017,25,2:2
7Concepts of blood transfusion in adults显示文摘Lawrence T Goodnough Jerrold H Levy Michael F Murphy 2013The Lancet2013,,9880:2
8A comparison of model-based and regression classification techniques applied to near infrared spectroscopic data in food authentication studies显示文摘TOHER D DOWNEY G MURPHY T B 2007Chemometrics and Intelligent Laboratory Systems2007,89,2:1
9Impact of preexisting statin use on adhesion molecule expression in patients presenting with acute coronary syndromes显示文摘MURPHY R T FOLEY J B MULVIHILL N 2001Am J Cardiol2001,87,:1
10Competition for cytokines : T (reg) cells take all 显示文摘Scheffold A Murphy KM Hofer T 2007Nat Immunol2007,8,:1
11Effect of broad-band ultraviolet and visble radiation in hydrogen peroxide formation by cultured rose cells显示文摘MURPHY T M 1990Phys iol plant1990,80,:1
12Review of emerging issues in sediment treatment显示文摘Murphy T P Lawson A Kumagai M 1999Aquatic Ecosystem Health and Management1999,2,:1
13Deciphering the biology of My cobacterium tuberculosis from the complete genome sequence 显示文摘Cole S T Brosch R Parkhill J Gamier T Churcher C Harris D Gordon S V Eiglmeier K Gas S Barry C E Tekaia F Badcock K Basham D Brown D Chillingworth T Cormor R Davies R Devlin K FeltweU T Gentles S Hamlin N Holroyd S Hornsby T Jagels K Kroghs A McLean J Moule S Murphy L Oliver K Osborne J Quail M A Rafandream M A Rogers J Rutter S Seeger K Skelton J Squaraes R Squares S Sulston J E Taylo K Whitehead S Barrell B G 1998Nature1998,393,:1
14The Super-oxide synt hases of rose cells-comparison of Assays 显示文摘MURPHY TM vU H NGUYEN T 1998Plant Physiol1998,17,:1
15Effect of cooling rate on the structure and mechanical properties of monotectoid zinc-aluminium alloys 显示文摘Savas T S Murphy S 2003Journal of Materials Science and Technology2003,19,1:1
16Controlling nitrification in a water distribution system using sodium chlorite 显示文摘O' CONMOR T MURPHY B O' CONMOR J T 2001Water Engineering & Management2001,148,9:1
17Complex dynamics and synchroniza tion of delayed-feedback nonlinear oscillators显示文摘Murphy T E Cohen A B Ravoori B 2010Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences2010,368,1911:1
18Using a coupled eco-hydrodynamic model to predict habitat for target species following dam removal显示文摘Tomsic C A Granata T C Murphy R P 2007Journal of Ecological Engineering2007,30,:1
19Gelatinases A and B 显示文摘 Crabbe T 1995Methods Ensymol1995,248,:1
20Field test results of standoff chemical detection using the FTIRS 显示文摘Spisz T S Murphy P K Carter C C 2007Chemical and Biological Sensing VIII2007,6554,:1
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