In the present issue of the World Journal of Hepatology,Ferrassi et al examine the problem of liver fibrosis staging in chronic hepatitis C.They identify novel biomarkers in an effort to predict accurate fibrosis stag...In the present issue of the World Journal of Hepatology,Ferrassi et al examine the problem of liver fibrosis staging in chronic hepatitis C.They identify novel biomarkers in an effort to predict accurate fibrosis staging with the aid of the metabolome of Hepatitis C patients.Overall I think Ferrassi et al took a different approach in identifying fibrosis biomarkers,by looking at the patients’metabolome.Their biomarkers clearly separate patients from controls.They can also separate out,patients with minimal fibrosis(F0-F1 stage)and patients with cirrhosis(F4 stage).Obviously,if these biomarkers were to be widely used,tests for all the important metabolites would need to be readily available for use in hospitals or outpatient setting and that may prove difficult and above all,costly.Nevertheless,this step could eventually lead to a metabolomic approach for novel biomarkers of Fibrosis.Obviously,it would need to be validated,but could represent a step towards the Holy Grail of Hepatology.展开更多
目的观察胆管结扎诱导肝纤维化大鼠肝细胞是否发生上皮间质表型变化。方法 24只Wistar大鼠分为假手术组和胆管结扎组,运用HE及Massion染色检测肝纤维化变化;免疫印迹方法检测大鼠肝脏中上皮标志E-钙蛋白、白蛋白和I型胶原、波形蛋白的表...目的观察胆管结扎诱导肝纤维化大鼠肝细胞是否发生上皮间质表型变化。方法 24只Wistar大鼠分为假手术组和胆管结扎组,运用HE及Massion染色检测肝纤维化变化;免疫印迹方法检测大鼠肝脏中上皮标志E-钙蛋白、白蛋白和I型胶原、波形蛋白的表达;采用免疫荧光双染的方法检测成纤维细胞特异性蛋白(FSP-1)+波形蛋白;FSP-1+I型胶原;FSP-1+白蛋白;白蛋白+I型胶原等蛋白在细胞中的定位。结果胆管结扎组大鼠的ISHAK纤维化评分(4.42±1.16 vs 0.00±0.00,P=-0.000),METAVIR纤维化评分(3.42±0.67 vs 0.00±0.00,P=-0.000)及Massion染色中胶原含量(0.30±0.06 vs 0.11±0.07,P=-0.000)较假手术组明显增高。与假手术组相比,胆管结扎组中上皮标志白蛋白(0.53±0.63 vs 1.12±0.01,P=0.000)、E-钙蛋白(0.21±0.01 vs 0.44±0.01,P=0.000)明显减少,而I型胶原(8.21±0.12 vs 0.24±0.01,P=-0.000)、波形蛋白(3.14±0.01 vs 0.37±0.01,P=0.000)显著增高。胆管结扎组中共表达FSP-1+波形蛋白、FSP-1+I型胶原、FSP-1+白蛋白、白蛋白+I型胶原的细胞较假手术组明显增多。结论在胆管结扎组诱导的肝纤维化大鼠肝脏中上皮标记减少,间质标志增加,提示有部分上皮细胞可能发生了上皮间质表型转化。展开更多
AIM: To investigate whether expression of selected mi RNAs obtained from fibrotic liver biopsies correlate with fibrosis stage.METHODS: Altogether, 52 patients were enrolled in the study representing various etiologic...AIM: To investigate whether expression of selected mi RNAs obtained from fibrotic liver biopsies correlate with fibrosis stage.METHODS: Altogether, 52 patients were enrolled in the study representing various etiologic backgrounds of fibrosis: 24 cases with chronic hepatitis infections(types B, C), 19 with autoimmune liver diseases(autoimmune hepatitis, primary biliary cirrhosis, primary sclerosing cholangitis, overlapping syndrome cases), and 9 of mixed etiology(alcoholic and nonalcoholic steatosis, cryptogenic cases). Severity of fibrosis was determined by both histologic staging using the METAVIR scoring system and noninvasive transient elastography. Following RNAisolation, expression levels of mi R-21, mi R-122, mi R-214, mi R-221, mi R-222, and mi R-224 were determined using Taq Man Micro RNA Assays applying mi R-140 as the reference. Selection of mi RNAs was based on their characteristic up- or downregulation observed in hepatocellular carcinoma. Relative expression of mi RNAs was correlated with fibrosis stage and liver stiffness(LS) value measured by transient elastography, as well as with serum alanine aminotransferase(ALT) level.RESULTS: The expression of individual mi RNAs showed deregulated patterns in stages F1-F4 as compared with stage F0, but only the reduced level of mi R-122 in stage F4 was statistically significant(P < 0.04). When analyzing mi RNA expression in relation to fibrosis, levels of mi R-122 and mi R-221 showed negative correlations with fibrosis stage, and mi R-122 was found to correlate negatively and mi R-224 positively with LS values(all P < 0.05). ALT levels displayed a positive correlation with mi R-21(P < 0.04). Negative correlations were observed in the fibrosis samples of mixed etiology between mi R-122 and fibrosis stage and LS values(P < 0.05), and in the samples of chronic viral hepatitis, between mi R-221 and fibrosis stage(P < 0.01), whereas mi R-21 showed positive correlation with ALT values in the samples of autoimmune liver diseases(P < 0.03). The results also revealed a strong correlation between fibrosis stage and LS values(P < 0.01) when etiology of fibrosis was not taken into account.CONCLUSION: Reduced expression of mi R-122 in advanced fibrosis and its correlation with fibrosis stage and LS values seem to be characteristic of hepatic fibrosis of various etiologies.展开更多
Objective:To document Toxoplasma gondii(T.gondii) antibody status in patients with liver disease,blood samples were taken from 180 hepatic patients and 180 healthy controls.Methods:Toxoplasma IgG antibody was detected...Objective:To document Toxoplasma gondii(T.gondii) antibody status in patients with liver disease,blood samples were taken from 180 hepatic patients and 180 healthy controls.Methods:Toxoplasma IgG antibody was detected using enzyme-linked immunosorbent assay and histopathological assessment of liver biopsy METAVIR score was applied.Results:Anti-T.gondii IgG antibodies were found in 32.8%of patients and in 22.2%of controls(P=0.02).Toxoplasma seropositivity was significantly associated with lymphadenopathy,history of blood transfusion and reflex impairment in patients.Chronic hepatitis C virus(HCV)and chronic HCV-related cirrhosis groups compared to chronic HBV and chronic HBV-related cirrhosis groups expressed significantly higher prevalence of T.gondii seropositivity(odds ratio(OR) =4;95%confidence interval(CI):1.3-12.6;P=0.013,OR=4.8;95%CI:1.5-14.9;P=0.006,respectively).Within the chronic HCV group,T.gondii seropositivity significantly associated disease evolution as regards to METAVIR histopathological system for fibrosis and inflammation(OR=19.4;95%CI:2.3-165.2;P=0.0008,OR=0.29;95%CI:0.1-0.8;P=0.01,respectively).Albumin,international normalized ratio(INR) and platelets count were the laboratory parameters significantly altered in Toxoplasma-positrvc chronic HCV patients(P=0.00 l,0.03,0.04,respectively).Child-Pugh scoring for cirrhosis in chronic HCV group placed the majority of seropositive patient in class C with significant statistical difference compared to Child A reference group(OR= 0.08;95%67:0.01-0.5;P=0.003).Conclusions:Toxoplasma seropositivity was high in patients with cirrhosis and associated higher grades of inflammation and necrosis signifying disease evolution,suggesting that cirrhotic patients may thus form a risk group for toxoplasmosis.展开更多
文摘In the present issue of the World Journal of Hepatology,Ferrassi et al examine the problem of liver fibrosis staging in chronic hepatitis C.They identify novel biomarkers in an effort to predict accurate fibrosis staging with the aid of the metabolome of Hepatitis C patients.Overall I think Ferrassi et al took a different approach in identifying fibrosis biomarkers,by looking at the patients’metabolome.Their biomarkers clearly separate patients from controls.They can also separate out,patients with minimal fibrosis(F0-F1 stage)and patients with cirrhosis(F4 stage).Obviously,if these biomarkers were to be widely used,tests for all the important metabolites would need to be readily available for use in hospitals or outpatient setting and that may prove difficult and above all,costly.Nevertheless,this step could eventually lead to a metabolomic approach for novel biomarkers of Fibrosis.Obviously,it would need to be validated,but could represent a step towards the Holy Grail of Hepatology.
文摘目的观察胆管结扎诱导肝纤维化大鼠肝细胞是否发生上皮间质表型变化。方法 24只Wistar大鼠分为假手术组和胆管结扎组,运用HE及Massion染色检测肝纤维化变化;免疫印迹方法检测大鼠肝脏中上皮标志E-钙蛋白、白蛋白和I型胶原、波形蛋白的表达;采用免疫荧光双染的方法检测成纤维细胞特异性蛋白(FSP-1)+波形蛋白;FSP-1+I型胶原;FSP-1+白蛋白;白蛋白+I型胶原等蛋白在细胞中的定位。结果胆管结扎组大鼠的ISHAK纤维化评分(4.42±1.16 vs 0.00±0.00,P=-0.000),METAVIR纤维化评分(3.42±0.67 vs 0.00±0.00,P=-0.000)及Massion染色中胶原含量(0.30±0.06 vs 0.11±0.07,P=-0.000)较假手术组明显增高。与假手术组相比,胆管结扎组中上皮标志白蛋白(0.53±0.63 vs 1.12±0.01,P=0.000)、E-钙蛋白(0.21±0.01 vs 0.44±0.01,P=0.000)明显减少,而I型胶原(8.21±0.12 vs 0.24±0.01,P=-0.000)、波形蛋白(3.14±0.01 vs 0.37±0.01,P=0.000)显著增高。胆管结扎组中共表达FSP-1+波形蛋白、FSP-1+I型胶原、FSP-1+白蛋白、白蛋白+I型胶原的细胞较假手术组明显增多。结论在胆管结扎组诱导的肝纤维化大鼠肝脏中上皮标记减少,间质标志增加,提示有部分上皮细胞可能发生了上皮间质表型转化。
基金Supported by Grant from the National Scientific Research Fund,OTKA K101435 and K108548
文摘AIM: To investigate whether expression of selected mi RNAs obtained from fibrotic liver biopsies correlate with fibrosis stage.METHODS: Altogether, 52 patients were enrolled in the study representing various etiologic backgrounds of fibrosis: 24 cases with chronic hepatitis infections(types B, C), 19 with autoimmune liver diseases(autoimmune hepatitis, primary biliary cirrhosis, primary sclerosing cholangitis, overlapping syndrome cases), and 9 of mixed etiology(alcoholic and nonalcoholic steatosis, cryptogenic cases). Severity of fibrosis was determined by both histologic staging using the METAVIR scoring system and noninvasive transient elastography. Following RNAisolation, expression levels of mi R-21, mi R-122, mi R-214, mi R-221, mi R-222, and mi R-224 were determined using Taq Man Micro RNA Assays applying mi R-140 as the reference. Selection of mi RNAs was based on their characteristic up- or downregulation observed in hepatocellular carcinoma. Relative expression of mi RNAs was correlated with fibrosis stage and liver stiffness(LS) value measured by transient elastography, as well as with serum alanine aminotransferase(ALT) level.RESULTS: The expression of individual mi RNAs showed deregulated patterns in stages F1-F4 as compared with stage F0, but only the reduced level of mi R-122 in stage F4 was statistically significant(P < 0.04). When analyzing mi RNA expression in relation to fibrosis, levels of mi R-122 and mi R-221 showed negative correlations with fibrosis stage, and mi R-122 was found to correlate negatively and mi R-224 positively with LS values(all P < 0.05). ALT levels displayed a positive correlation with mi R-21(P < 0.04). Negative correlations were observed in the fibrosis samples of mixed etiology between mi R-122 and fibrosis stage and LS values(P < 0.05), and in the samples of chronic viral hepatitis, between mi R-221 and fibrosis stage(P < 0.01), whereas mi R-21 showed positive correlation with ALT values in the samples of autoimmune liver diseases(P < 0.03). The results also revealed a strong correlation between fibrosis stage and LS values(P < 0.01) when etiology of fibrosis was not taken into account.CONCLUSION: Reduced expression of mi R-122 in advanced fibrosis and its correlation with fibrosis stage and LS values seem to be characteristic of hepatic fibrosis of various etiologies.
文摘Objective:To document Toxoplasma gondii(T.gondii) antibody status in patients with liver disease,blood samples were taken from 180 hepatic patients and 180 healthy controls.Methods:Toxoplasma IgG antibody was detected using enzyme-linked immunosorbent assay and histopathological assessment of liver biopsy METAVIR score was applied.Results:Anti-T.gondii IgG antibodies were found in 32.8%of patients and in 22.2%of controls(P=0.02).Toxoplasma seropositivity was significantly associated with lymphadenopathy,history of blood transfusion and reflex impairment in patients.Chronic hepatitis C virus(HCV)and chronic HCV-related cirrhosis groups compared to chronic HBV and chronic HBV-related cirrhosis groups expressed significantly higher prevalence of T.gondii seropositivity(odds ratio(OR) =4;95%confidence interval(CI):1.3-12.6;P=0.013,OR=4.8;95%CI:1.5-14.9;P=0.006,respectively).Within the chronic HCV group,T.gondii seropositivity significantly associated disease evolution as regards to METAVIR histopathological system for fibrosis and inflammation(OR=19.4;95%CI:2.3-165.2;P=0.0008,OR=0.29;95%CI:0.1-0.8;P=0.01,respectively).Albumin,international normalized ratio(INR) and platelets count were the laboratory parameters significantly altered in Toxoplasma-positrvc chronic HCV patients(P=0.00 l,0.03,0.04,respectively).Child-Pugh scoring for cirrhosis in chronic HCV group placed the majority of seropositive patient in class C with significant statistical difference compared to Child A reference group(OR= 0.08;95%67:0.01-0.5;P=0.003).Conclusions:Toxoplasma seropositivity was high in patients with cirrhosis and associated higher grades of inflammation and necrosis signifying disease evolution,suggesting that cirrhotic patients may thus form a risk group for toxoplasmosis.
