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542篇 您的检索式:作者名="Roger L M"
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1Golgi protein-73:A biomarker for assessing cirrhosis and prognosis of liver disease patients显示文摘BACKGROUND Reliable biomarkers of cirrhosis,hepatocellular carcinoma(HCC),or progression of chronic liver diseases are missing.In this context,Golgi protein-73(GP73)also called Golgi phosphoprotein-2,was originally defined as a resident Golgi type II transmembrane protein expressed in epithelial cells.As a result,GP73 expression was found primarily in biliary epithelial cells,with only slight detection in hepatocytes.However,in patients with acute or chronic liver diseases and especially in HCC,the expression of GP73 is significantly up-regulated in hepatocytes.So far,few studies have assessed GP73 as a diagnostic or prognostic marker of liver fibrosis and disease progression.AIM To assess serum GP73 efficacy as a diagnostic marker of cirrhosis and/or HCC or as predictor of liver disease progression.METHODS GP73 serum levels were retrospectively determined by a novel GP73 ELISA(QUANTA Lite®GP73,Inova Diagnostics,Inc.,Research Use Only)in a large cohort of 632 consecutive patients with chronic viral and non-viral liver diseases collected from two tertiary Academic centers in Larissa,Greece(n=366)and Debrecen,Hungary(n=266).Aspartate aminotransferase(AST)/Platelets(PLT)ratio index(APRI)was also calculated at the relevant time points in all patients.Two hundred and three patients had chronic hepatitis B,183 chronic hepatitis C,198 alcoholic liver disease,28 autoimmune cholestatic liver diseases,15 autoimmune hepatitis,and 5 with other liver-related disorders.The duration of follow-up was 50(57)mo[median(interquartile range)].The development of cirrhosis,liver decompensation and/or HCC during follow-up were assessed according to internationally accepted guidelines.In particular,the surveillance for the development of HCC was performed regularly with ultrasound imaging and alpha-fetoprotein(AFP)determination every 6 mo in cirrhotic and every 12 mo in non-cirrhotic patients.RESULTS Increased serum levels of GP73(>20 units)were detected at initial evaluation in 277 out of 632 patients(43.8%).GP73-seropositivity correlated at baseline with the presence of cirrhosis(96.4%vs 51.5%,P<0.001),decompensation of cirrhosis(60.3%vs 35.5%,P<0.001),presence of HCC(18.4%vs 7.9%,P<0.001)and advanced HCC stage(52.9%vs 14.8%,P=0.002).GP73 had higher diagnostic accuracy for the presence of cirrhosis compared to APRI score[Area under the curve(AUC)(95%CI):0.909(0.885-0.934)vs 0.849(0.813-0.886),P=0.003].Combination of GP73 with APRI improved further the accuracy(AUC:0.925)compared to GP73(AUC:0.909,P=0.005)or APRI alone(AUC:0.849,P<0.001).GP73 levels were significantly higher in HCC patients compared to non-HCC[22.5(29.2)vs 16(20.3)units,P<0.001)and positively associated with BCLC stage[stage 0:13.9(10.8);stage A:17.1(16.8);stage B:19.6(22.3);stage C:32.2(30.8);stage D:45.3(86.6)units,P<0.001]and tumor dimensions[very early:13.9(10.8);intermediate:19.6(18.4);advanced:29.1(33.6)units,P=0.004].However,the discriminative ability for HCC diagnosis was relatively low[AUC(95%CI):0.623(0.570-0.675)].Kaplan-Meier analysis showed that the detection of GP73 in patients with compensated cirrhosis at baseline,was prognostic of higher rates of decompensation(P=0.036),HCC development(P=0.08),and liver-related deaths(P<0.001)during follow-up.CONCLUSION GP73 alone appears efficient for detecting cirrhosis and superior to APRI determination.In combination with APRI,its diagnostic performance can be further improved.Most importantly,the simple GP73 measurement proved promising for predicting a worse outcome of patients with both viral and nonviral chronic liver diseases.Nikolaos K Gatselis Tamás Tornai Zakera Shums Kalliopi Zachou Asterios Saitis Stella Gabeta Roger Albesa Gary L Norman Mária Papp George N Dalekos 2020World Journal of Gastroenterology2020,26,34:21
2Randomized trial in malignant biliary obstruction:Plastic vs partially covered metal stents显示文摘AIM:To compare efficacy and complications of par-tially covered self-expandable metal stent(pcSEMS)to plastic stent(PS)in patients treated for malignant,infrahilar biliary obstruction.METHODS:Multicenter prospective randomized clinical trial with treatment allocation to a pcWallstent(SEMS)or a 10 French PS.Palliative patients aged≥18,for infrahilar malignant biliary obstruction and a Karnofsky performance scale index>60%from 6 participating North American university centers.Primary endpoint was time to stent failure,with secondary outcomes of death,adverse events,Karnofsky performance score and short-form-36 scale administered on a three-monthly basis for up to 2 years.Survival analyses were performed for stent failure and death,with Cox proportional hazards regression models to determine significant predictive characteristics.RESULTS:Eighty-five patients were accrued over 37mo,42 were randomized to the SEMS group and 83patients were available for analyses.Time to stent failure was 385.3±52.5 d in the SEMS and 153.3±19.8 d in the PS group,P=0.006.Time to death did not differ between groups(192.3±23.4 d for SEMS vs211.5±28.0 d for PS,P=0.70).The only significant predictor was treatment allocation,relating to the time to stent failure(P=0.01).Amongst other measured outcomes,only cholangitis differed,being more common in the PS group(4.9%vs 24.5%,P=0.029).The small number of patients in follow-up limits longitudinal assessments of performance and quality of life.From an initially planned 120 patients,only 85 patients were recruited.CONCLUSION:Partially covered SEMS result in a longer duration till stent failure without increased complication rates,yet without accompanying measurable benefits in survival,performance,or quality of life.Peter L Moses Khalid M AlNaamani Alan N Barkun Stuart R Gordon Roger D Mitty M Stanley Branch Thomas E Kowalski Myriam Martel Viviane Adam 2013World Journal of Gastroenterology2013,19,46:6
3Human fetal mesenchymal stem cells differentiate into brown and white adipocytes: a role for ERRα in human UCP1 expression显示文摘我们调查了胎儿的间充质的干细胞(fMSCs ) 的能力区分进棕色、白的 adipocytes 并且比较了很多标记基因和关键规章的因素的表示。我们证明关键 adipocyte 管理者和标记的表示在另外的人、鼠科的 adipocyte 模型在区别期间类似于那,包括 PPAR 纬 2 和 FABP4 的正式就职。尤其是,我们发现 preadipocyte 标记, Pref-1,当这个过程继续,显著地在区别然后衰落早被导致,当他们承诺 adipogenic 系,建议 fMSCs 首先获得 preadipocyte 特征,在他们进成熟 adipocytes 的区别以前。在 adipogenic 正式就职以后,某干细胞孤立区分了进类似于棕色的 adipocytes 和其它进白 adipocytes 的房间。一个的详细调查孤立证明新奇棕色的胖决定的因素 PRDM16 在区别前后两个都被表示。重要地,展出的这些房间提高了基础 UCP-1 表示,它依赖于孤儿的活动原子受体犯错伪,加亮一个新奇角色为犯错在人的棕色的脂肪的伪。因此 fMSCs 代表一在 vitro 有用为人的 adipogenesis 当模特儿,并且提供机会在对 adipocyte 系的承诺以前学习阶段。他们也提供无价的卓见进人的棕色的脂肪的特征。Daniel L Morganstein Pensee Wu Meritxell R Mane Nick M Fisk Roger White Malcolm G Parker 2010Cell Research2010,20,4:5
4Liver fat deposition and mitochondrial dysfunction in morbid obesity:An approach combining metabolomics with liver imaging and histology显示文摘AIM: To explore the usefulness of magnetic resonance imaging(MRI) and spectroscopy(MRS) for assessment of non-alcoholic fat liver disease(NAFLD) as compared with liver histological and metabolomics findings. METHODS: Patients undergoing bariatric surgery following procedures involved in laparoscopic sleeve gastrectomy were recruited as a model of obesityinduced NAFLD in an observational, prospective, singlesite, cross-sectional study with a pre-set duration of 1 year. Relevant data were obtained prospectively and surrogates for inflammation, oxidative stress and lipid and glucose metabolism were obtained through standard laboratory measurements. To provide reliable data from MRI and MRS, novel procedures were designed to limit sampling variability and other sources of error using a 1.5T Signa HDx scanner and protocols acquired from the 3D or 2D Fat SAT FIESTA prescription manager. We used our previously described 1H NMRbased metabolomics assays. Data were obtained immediately before surgery and after a 12-mo period including histology of the liver and measurement of metabolites. Values from 1H NMR spectra obtained after surgery were omitted due to technical limitations.RESULTS: MRI data showed excellent correlation with the concentration of liver triglycerides, other hepatic lipid components and the histological assessment, w h i c h e xc l u d e d t h e p r e s e n c e o f n o n-a l c o h o l i c steatohepatitis(NASH). MRI was sufficient to follow up NAFLD in obese patients undergoing bariatric surgery and data suggest usefulness in other clinical situations. The information provided by MRS replicated that obtained by MRI using the-CH3 peak(0.9 ppm), the-CH2- peak(1.3 ppm, mostly triglyceride) and the-CH=CH- peak(2.2 ppm). No patient depicted NASH. After surgery all patients significantly decreased their body weight and steatosis was virtually absent even in patients with previous severe disease. Improvement was also observed in the serum concentrations of selected variables. The most relevant findings using metabolomics indicate increased levels of triglyceride and monounsaturated fatty acids in severe steatosis but those results were accompanied by a significant depletion of diglycerides, polyunsaturated fatty acids, glucose-6-phosphate and the ATP/AMP ratio. Combined data indicated the coordinated action on mitochondrial fat oxidation and glucose transport activity and may support the consideration of NAFLD as a likely mitochondrial disease. This concept may helpto explain the dissociation between excess lipid storage in adipose tissue and NAFLD and may direct the search for plasma biomarkers and novel therapeutic strategies. A limitation of our study is that data were obtained in a relatively low number of patients.CONCLUSION: MRI is sufficient to stage NAFLD in obese patients and to assess the improvement after bariatric surgery. Other data were superfluous for this purpose.Nahum Calvo Raúl Beltrán-Debón Esther Rodríguez-Gallego Anna Hernández-Aguilera Maria Guirro Roger Mariné-Casadó Lidón Millá Josep M Alegret Fàtima Sabench Daniel del Castillo María Vinaixa Miguelàngel Rodríguez Xavier Correig Roberto García-álvarez Javier A Menendez Jordi Camps Jorge Joven 2015World Journal of Gastroenterology2015,21,24:2
5DNA damage induced by chronic inflammation contributes to colon carcinogenesis in mice显示文摘Meira Lisiane B Bugni James M Green Stephanie L Lee Chung-Wei Pang Bo Borenshtein Diana Rickman Barry H Rogers Arlin B Moroski-Erkul Catherine A McFaline Jose L Schauer David B Dedon Peter C Fox James G Samson Leona D 2008Journal of Clinical Investigation2008,,7:2
6Identification of a novel glucose transporter-like protein-GLUT-12 显示文摘Rogers S Macheda M L Docherty S E 2002Am J Physiol Endocrinol Metab2002,282,3:2
7The Supply Chain Management Process显示文摘Croxton K L Garcfa - Dastugue S J Lambert D M Rogers 2001The International Jour- nal of Logistics Management2001,12,2:1
8Trends in heart failure incidence and survival in a community-based population显示文摘ROGER V L WESTON S A REDFIELD M M 2004JAMA2004,292,3:1
9Deciphering 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
10Nonlinear wavelet transforms for image coding via lifting显示文摘Roger L C Davis G M Sweldens W 2003IEEE Transactions on Image Process2003,12,12:1
11An optimal multiedge detector for SAR image segment显示文摘ROGER F ARMAND L PHII IPPE M 1988IEEE Trans actions on Geoscience and Re note Sensing1988,36,3:1
12Molecular and cellular regula- tion of glucose transporter (Glut) proteins in cancer 显示文摘Maeheda M L Rogers S Best J D 2005J Cell Physiol2005,202,3:1
13Translation of the Alzheimer amyloid precursor protein mRNA is up-regulated by interleukin-1 through 5'-untrsnated region sequences 显示文摘Rogers J T Leiter L M Mcphee J 1999J Biol chem1999,294,:1
14Screening criteria for beta thalassaemia trait in pregnant women显示文摘Rogers M Phelan L Bain B 1995J Cl in Pathol1995,48,11:1
15Phylogeny of dissimilatory sulfite reduetases supports an early origin of sulfate respiration 显示文摘Wagner M Roger A J Flax J L 1998Journal of Bacteriology1998,180,11:1
16Evolution and alte ration of petrleum in western Canada显示文摘Evans C R Rogers M A Bailey N J L 1971Chem Geol1971,8,:1
17Precocious puberty and statural growth显示文摘Carel JC Lahlou N Roger M et a l 2004Human Reproduction Update2004,10,2:1
18Evolution and alteration of petroleum in western Canada显示文摘Evans C R Rogers M A Bailey N J L 1971Chemical Geology1971,8,3:1
19Relationship between circadian oscillations of Hev-erbo expression and intracellular levels of its ligand, heme显示文摘ROGERS P M YING L BURRIS T P 2008Biochemical and Biophysical Research Communications2008,368,4:1
20Double-blind placebocontrolled trial of dapsone in antihistamine refractory chronic idiopathicurticaria显示文摘Morgan M Cooke A Rogers L 2014J Allergy Clin Immunol Pract2014,6,5:1
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