维普中文期刊产品整合服务
179篇 您的检索式:作者名="SHUM L"
    题名 作者 年代 出处 被引量
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
2Cartilage oligomeric matrix protein: A novel non-invasive marker for assessing cirrhosis and risk of hepatocellular carcinoma显示文摘AIM: To assess serum cartilage oligomeric matrix protein(COMP) as a marker of cirrhosis and risk of progression to hepatocellular carcinoma(HCC). METHODS: A COMP enzyme-linked immunosorbentassay was used to test 187 patients with chronic liver diseases at the time point of first evaluation. The selected patients included 72 with chronic hepatitis B infection, 75 with chronic hepatitis C infection, 22 with primary biliary cirrhosis, 7 with autoimmune hepatitis type 1, and 11 with alcoholic liver disease. Demographic, biochemical, histological and clinical characteristics of the patients were recorded at the first evaluation. One hundred and forty-seven patients were followed for a median [interquartile range(IQR)] duration of 96.5(102) mo. The clinical, biochemical and histological data, as well as the development of cirrhosis, HCC according to internationally accepted criteria and in case of death, a liver-related cause during the follow-up period, were recorded at the electronic database of our clinic. COMP determination was also performed in 43 healthy individuals who served as the control study group.RESULTS: COMP positivity(> 15 U/L) was detected in 22%-36% among chronic liver disease groups. Strikingly, almost 83% of COMP-positive patients were cirrhotic at baseline, independently of cause of liver disease. Among the patients who developed HCC during follow-up, 73.7%(14/19) were COMP positive at baseline. COMP positivity was significantly associated with older age(P < 0.001), advanced fibrosis(P = 0.001) and necroinflammatory activity(P = 0.001), higher aspartate aminotransferase(P < 0.001), alanine aminotransferase(P < 0.02), γ-glutamyl transpeptidase(P = 0.003), alkaline phosphatase(P = 0.001), bilirubin(P < 0.05), international normalized ratio(P = 0.002) and alpha-fetoprotein levels(P < 0.02), and lower albumin(P < 0.001), and platelet count(P = 0.008). COMP levels [median(IQR)] were significantly higher in cirrhotics compared to non-cirrhotics [13.8(7.9) U/L vs 9.8(4.6) U/L, respectively; P < 0.001]. On multivariate logistic regression analysis, COMP-positivity was independently associated only with cirrhosis(OR = 4.40, 95%CI: 1.33-14.69, P = 0.015). Kaplan-Meier analysis showed that COMP positivity was significantly associated with HCC development(P = 0.007) and higher incidence of liver-related death(P < 0.001). CONCLUSION: Elevated COMP levels are strongly associated with cirrhosis and HCC progression. Serum COMP is a new promising non-invasive biomarker for HCC risk assessment in surveillance programs.Gary L Norman Nikolaos K Gatselis Zakera Shums Christos Liaskos Dimitrios P Bogdanos George K Koukoulis George N Dalekos 2015World Journal of Hepatology2015,7,14:7
3Gut barrier failure biomarkers are associated with poor disease outcome in patients with primary sclerosing cholangitis显示文摘AIM To assess the prevalence of a panel of serologic markers that reflect gut barrier dysfunction in a mixed cohort of pediatric and adult primary sclerosing cholangitis(PSC) patients.METHODS Sera of 67 PSC patients [median age(range): 32(5-79) years, concomitant IBD: 67% and cirrhosis: 20%] were assayed for the presence of antibodies against to F-actin(AAA Ig A/Ig G) and gliadin(AGA Ig A/Ig G)] and for serum level of intestinal fatty acid-binding protein(I-FABP) by ELISA. Markers of lipopolysaccharide(LPS) exposure [LPS binding protein(LBP)] and various antimicrobial antibodies [anti-OMP Plus Ig A and endotoxin core Ig A antibody(Endo CAb)] were also determined. Poor disease outcome was defined as orthotopic liver transplantation and/or liver-related death during the follow-up [median: 99(14-106) mo]. One hundred and fifty-three healthy subjects(HCONT) and 172 ulcerative colitis(UC) patients were the controls. RESULTS A total of 28.4%, 28.0%, 9% and 20.9% of PSC patients were positive for AAA Ig A, AAA Ig G, AGA Ig A and AGA Ig G, respectively. Frequencies of AAA Ig A and AAA Ig G(P < 0.001, for both) and AGA Ig G(P = 0.01, for both) but not AGA Ig A were significantly higher compared to both of the HCONT and the UC groups. In survival analysis, AAA Ig A-positivity was revealed as an independent predictor of poor disease outcome after adjusting either for the presence of cirrhosis [HR = 5.15(1.27-20.86), P = 0.022 or for the Mayo risk score(HR = 4.24(0.99-18.21), P = 0.052]. AAA Ig A-positivity was significantly associated with higher frequency of antimicrobial antibodies(P < 0.001 for Endo Cab Ig A and P = 0.012 for anti-OMP Plus Ig A) and higher level of the enterocyte damage marker(median I-FABP_(AAA Ig A pos vs neg): 365 vs 166 pg/m L, P = 0.011), but not with serum LBP level. CONCLUSION Presence of Ig A type AAA identified PSC patients with progressive disease. Moreover, it is associated with enhanced mucosal immune response to various microbial antigens and enterocyte damage further highlighting the importance of the gut-liver interaction in PSC.Tamas Tornai Eszter Palyu Zsuzsanna Vitalis Istvan Tornai David Tornai Peter Antal-Szalmas Gary L Norman Zakera Shums Gabor Veres Antal Dezsofi Gabriella Par Alajos Par Peter Orosz Ferenc Szalay Peter Laszlo Lakatos Maria Papp 2017World Journal of Gastroenterology2017,23,29:5
4Comprehensive review of autoantibodies in patients with hyper-IgM syndrome显示文摘Hyper-immunoglobulin M syndrome is an X-linked primary immunodeficiency disease caused by mutations in the CD40 ligand gene.The CD40 ligand has been recently highlighted as playing a key role in the pathogenesis of primary biliary cholangitis.In the present study,we assessed an extensive set of serum autoantibodies in a series of well-defined patients with hyper-immunoglobulin M syndrome.Serum,liver-related and liver-not-related autoantibodies IgG,IgM and IgA were tested by ELISA and standard indirect immunofluorescence in HEp-2 cells in 13 Tunisian patients(8 males and 5 females,aged 1–12 years)with hyper-immunoglobulin M syndrome during 1995–2012 and,as controls,21 age-and gender-matched blood donors.The level of IgM antibody against MIT3 was significantly higher in patients than in controls(35.8 vs 10.7,P=0.002).Half of the hyperimmunoglobulin M syndrome patients were found to be anti-MIT3 IgM positive vs none of the controls(Po0.0001).Twenty-three percent of patients were found to be anti-sp100 antibody positive vs only 0.05%of controls.By immunofluorescence,92.3%of patients were MIT3 IgM positive vs none of the controls.In conclusion,the IgM class of anti-MIT3 antibodies was shown to be present by both ELISA and immunofluorescence in most of the patients with hyper-immunoglobulin M syndrome.The presence of the hallmark of primary biliary cholangitis,a disease where the CD40 ligand is a key player,in an immunodeficiency disease caused by mutations in the CD40 ligand gene is very intriguing and opens new scenarios in understanding the immune pathogenesis of primary biliary cholangitis.Mohamed-Ridha Barbouche Qubo Chen Marco Carbone Imen Ben-Mustapha Zakera Shums Mehdi Trifa Federica Malinverno Francesca Bernuzzi Haiyan Zhang Nourhen Agrebi Gary L Norman Christopher Chang M Eric Gershwin Pietro Invernizzi 2018Cellular & Molecular Immunology2018,15,6:2
5Epidermal growth factor receptor function is necessary for normal craniofacial development and palate closure显示文摘Miettinen PJ Chin JR Shum L 1999Nat Genet1999,22,:1
6Weakly c-normal subgroups of finite groups and their properties显示文摘Zhu L J Guo W B Shum K P 2002Comm Alg2002,30,11:1
7The tetraspanin CD9 associates with transmembrane TGF-alpha and regulates TGF-alpha-induced EGF receptor activation and cell proliferation 显示文摘Shi W Fan H Shum L 2000J Cell Biol2000,148,3:1
8Aerodynamic Coefficients of Inclined Cylinders with Artificial Rivulet in Smooth flow 显示文摘Xu Y L Li Y L Shum K M 2006Advances in Structural Engineering2006,9,2:1
9Completion of codes with finite bi-decoding delays显示文摘Zhang L Shum K P Peng S L 2003Theoretical Computer Science2003,306,:1
10Distinct functions of BMP4 and GDF5 in the regulation of chondrogenesis显示文摘Hatakeyama Y Tuan R S Shum L 2004J Cell Biochem2004,91,6:1
11Weakly c-normal subgroups of finite groups and their properties 显示文摘 Guo W B Shum K P 2002Comm in Algebra2002,30,11:1
12Epidermal growth factor receptor function is necessary for normal craniofacial development and palate closure显示文摘Miettinen PJ Chin JR Shum L 1999Nat Genet1999,22,1:1
13Vascular endothelial growth factor expression and bone formation in posterior glenoid fossa during stepwise mandibular advancement 显示文摘Shum L Rabie AB Hagg U 2004Am J Orthod Dentofacial Orthop2004,,:1
14Accuracy assessment of recent ocean tide models显示文摘Shum C K Woodworth P L Andersen O B 1997J Geophys Res1997,102,25:1
15The EOQ with defective items and partially permissible delay in pay- ments linked to order quantity derived algebraically显示文摘Ouyang L Y Chang C T Shum P 2012Central European Journal of Operations Research2012,20,1:1
16Design of novel DS-OCDMA encoders/ decoders using phase sampled long period grating 显示文摘Xia L Shum P 2008Optics Communications2008,281,17:1
17Transforming growth factor-beta3 promotes mesenchymal cell proliferation and angiogenesis mediated by the enhancement of cyclin D1,Flk-1,and CD31 gene expression during CL/Fr mouse lip fusion显示文摘Muraoka N Shum L Fukumoto S 2005Birth Defects Res A Clin Mol Teratol2005,73,12:1
18Cloning of a type I TGF-beta receptor and its effect on TGF-beta binding to the type Ⅱ receptor显示文摘Ebner R Chen RH Shum L 1993Science1993,260,5112:1
19Vascular endothelial growth factor expression and bone formation in posterior glenoid fos- sa during stepwise mandibular advancement显示文摘Shum L Rable AB Hagg U 2004Am J Orth- od Dentofacial Orthop2004,125,2:1
20Aptamer-mediated inhibition of Mycobacterium tuberculosis polyphosphate kinase 2显示文摘Shum K T Lui E L Wong S C Yeung P Sam L Wang Y 0,,:1
返回顶部 每页显示:
共9页 首页 上一页 第1页 下一页 末页 /9 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费