Chronic hepatitis B(CHB)infection is a major public health problem associated with significant morbidity and mortality worldwide.Twenty-three percent of patients with CHB progress naturally to liver cirrhosis,which wa...Chronic hepatitis B(CHB)infection is a major public health problem associated with significant morbidity and mortality worldwide.Twenty-three percent of patients with CHB progress naturally to liver cirrhosis,which was earlier thought to be irreversible.However,it is now known that cirrhosis can in fact be reversed by treatment with oral anti-nucleotide drugs.Thus,early and accurate diagnosis of cirrhosis is important to allow an appropriate treatment strategy to be chosen and to predict the prognosis of patients with CHB.Liver biopsy is the reference standard for assessment of liver fibrosis.However,the method is invasive,and is associated with pain and complications that can be fatal.In addition,intra-and inter-observer variability compromises the accuracy of liver biopsy data.Only small tissue samples are obtained and fibrosis is heterogeneous in such samples.This confounds the two types of observer variability mentioned above.Such limitations have encouraged development of non-invasive methods for assessment of fibrosis.These include measurements of serum biomarkers of fibrosis;and assessment of liver stiffness via transient elastography,acoustic radiation force impulse imaging,real-time elastography,or magnetic resonance elastography.Although significant advances have been made,most work to date has addressed the diagnostic utility of these techniques in the context of cirrhosis caused by chronic hepatitis C infection.In the present review,we examine the advantages afforded by use of non-invasive methods to diagnose cirrhosis in patients with CHB infections and the utility of such methods in clinical practice.展开更多
The development of sensitive assays to detect small amounts of hepatitis B virus(HBV) DNA has favored the identification of occult hepatitis B infection(OBI), a virological condition characterized by a low level of HB...The development of sensitive assays to detect small amounts of hepatitis B virus(HBV) DNA has favored the identification of occult hepatitis B infection(OBI), a virological condition characterized by a low level of HBV replication with detectable levels of HBV DNA in liver tissue but an absence of detectable surface antigen of HBV(HBs Ag) in serum. The gold standard to diagnose OBI is the detection of HBV DNA in the hepatocytes by highly sensitive and specific techniques, a diagnostic procedure requiring liver tissue to be tested and the use of non-standardized non-commercially available techniques. Consequently, in everyday clinical practice, the detection of anti-hepatitis B core antibody(antiHBc) in serum of HBs Ag-negative subjects is used as a surrogate marker to identify patients with OBI. In patients with chronic hepatitis C(CHC), OBI has been identified in nearly one-third of these cases. Considerable data suggest that OBI favors the increase of liver damage and the development of hepatocellular carcinoma(HCC) in patients with CHC. The data from other studies, however, indicate no influence of OBI on the natural history of CHC, particularly regarding the risk of developing HCC.展开更多
AIM:To investigate the dynamic changes of serum hepatitis B surface antigen(HBs Ag) levels apportioned by the same hepatic parenchyma cell volume(HPCV),namely,hepatic cell quantities.METHODS:Serum HBs Ag levels were d...AIM:To investigate the dynamic changes of serum hepatitis B surface antigen(HBs Ag) levels apportioned by the same hepatic parenchyma cell volume(HPCV),namely,hepatic cell quantities.METHODS:Serum HBs Ag levels were detected by electrochemiluminescence and serum HBs Ag levels apportioned by the same HPCV were figured out according to the theory of sphere geometry.HBs Ag levels were compared among different liver inflammation grades,as well as different hepatic fibrosis stages.RESULTS:In hepatitis B e antigen-negative chronic hepatitis B,serum HBs Ag levels in liver histological inflammation grades 1-4 were 3.66 ± 0.40,3.74 ± 0.35,3.74 ± 0.26 and 3.71 ± 0.34 log10 COI(cut off index),respectively,and there were no differences before apportion(P =0.640).Serum HBs Ag levels apportioned by the same HPCV were 5.57 ± 0.62,5.98 ± 0.65,6.59 ± 0.50 and 6.81 ± 0.84 log10 COI,respectively,and there were significant differences after apportion(P < 0.001).Serum HBs Ag levels in hepatic fibrosis stagesⅠ-Ⅳ were 3.66 ± 0.43,3.75 ± 0.33,3.71 ± 0.28 and 3.75 ± 0.26 log10 COI,respectively,and there were no differences before apportion(P =0.513).Serum HBs Ag levels apportioned by the same HPCV were 5.53 ± 0.66,5.98 ± 0.53,6.29 ± 0.46 and 7.06 ± 0.48 log10 COI,respectively,and there were significant differences after apportion(P < 0.001).CONCLUSION:Serum HBs Ag levels apportioned by the same HPCV(hepatic cell quantities),rather than serum HBs Ag levels,increase with liver inflammation grades and hepatic fibrosis stages.展开更多
OBJECTIVE: To study the preparation of diagnostic gene chip for detecting hepatitis B virus (HBV) and hepatitis C virus (HCV) and its accuracy in detecting HBV DNA and HCV RNA in serum and liver tissues. METHODS: The ...OBJECTIVE: To study the preparation of diagnostic gene chip for detecting hepatitis B virus (HBV) and hepatitis C virus (HCV) and its accuracy in detecting HBV DNA and HCV RNA in serum and liver tissues. METHODS: The probes, which depend on the conservative gene fragment of hepatitis virus, was designed, synthesized and spotted on the modified glass. The probes and some other control probes were assembled on the diagnostic microarray of hepatitis virus. The gene of hepatitis virus, purified from blood or tissue, was labeled with fluorescence and hybridized to the microarray. The hybridized microarry was scanned with microarray scanner and the diagnostic result was analyzed from the scanning data. Fourty patients with hepatitis B virus and 40 healthy people or 40 patients with hepatitis C virus were subjected to detection of HBV DNA and HCV RNA with the hepatitis virus gene chip by the double-blind method. Paraffin liver specimens obtained from 99 cases of posthepatitic cirrhosis were used to detect HBV DNA. The liver tissues and serum from 15 cases of chronic hepatitis B were used to detect HBV DNA. Simultaneously, HBsAg and HBcAg were detected in the serum by fluorescence microparticle quantitation, HBV DNA and HCV RNA in the serum by PCR, and HBcAg in liver tissues by immunocytochemistry or HBV DNA by in situ molecular hybridization. RESULTS: Chip detection of serum specimens showed that 30 patients were HBV DNA positive and 10 HBV DNA negative in the 40 patients with HBV positive, 25 patients were HCV RNA positive and 15 patients were HCV RNA negative in the 40 patients with HCV positive, and all were HBV and HCV negative in the 40 healthy people. In 15 patients with HBV marker positive who were subjected to liver biopsy, 15 patients were detected HBV DNA positive in serum by gene chip, 15 patients HBcAg positive in liver tissues by immunocytochemistry, 14 patients HBV DNA positive in liver tissues by in situ molecular hybridization, and 14 patients HBV DNA positive in liver tissues by gene chip. Paraffin live展开更多
The association of primary sclerosing cholangitis(PSC)and autoimmune hepatitis(AIH)is known as an overlap syndrome(OS).OS can also be described in the setting of concomitant presence of AIH and PSC.These diseases can ...The association of primary sclerosing cholangitis(PSC)and autoimmune hepatitis(AIH)is known as an overlap syndrome(OS).OS can also be described in the setting of concomitant presence of AIH and PSC.These diseases can in some cases be associated with ulcerative colitis.In this case report we describe,to our knowledge,the first case in the literature of a young Caucasian male suffering from ulcerative colitis and an overlap syndrome consisting of an association betweenPSC-AIH,with the concomitant presence of a membranous glomerulonephritis.展开更多
干扰素α（IFNα）具有抗病毒和免疫调节作用,停药后还有一定比例的后效应及HBsAg消失率[1]。替比夫定有较强的抑制乙型肝炎病毒（hepatitis B virus,HBV）复制和较高的HBeAg血清学转换率[2]。本研究报道42例HBeAg阳性慢性乙型肝炎（chr...干扰素α（IFNα）具有抗病毒和免疫调节作用,停药后还有一定比例的后效应及HBsAg消失率[1]。替比夫定有较强的抑制乙型肝炎病毒（hepatitis B virus,HBV）复制和较高的HBeAg血清学转换率[2]。本研究报道42例HBeAg阳性慢性乙型肝炎（chronic hepatitis B,CHB）患者,经PegIFN-α-2a序贯替比夫定治疗,4例获得HBsAg血清学转换,报告如下。展开更多
基金Supported by A grant of the South Korea Healthcare technology R and D projectMinistry of Health and Welfare+1 种基金South KoreaNo.HI10C2020
文摘Chronic hepatitis B(CHB)infection is a major public health problem associated with significant morbidity and mortality worldwide.Twenty-three percent of patients with CHB progress naturally to liver cirrhosis,which was earlier thought to be irreversible.However,it is now known that cirrhosis can in fact be reversed by treatment with oral anti-nucleotide drugs.Thus,early and accurate diagnosis of cirrhosis is important to allow an appropriate treatment strategy to be chosen and to predict the prognosis of patients with CHB.Liver biopsy is the reference standard for assessment of liver fibrosis.However,the method is invasive,and is associated with pain and complications that can be fatal.In addition,intra-and inter-observer variability compromises the accuracy of liver biopsy data.Only small tissue samples are obtained and fibrosis is heterogeneous in such samples.This confounds the two types of observer variability mentioned above.Such limitations have encouraged development of non-invasive methods for assessment of fibrosis.These include measurements of serum biomarkers of fibrosis;and assessment of liver stiffness via transient elastography,acoustic radiation force impulse imaging,real-time elastography,or magnetic resonance elastography.Although significant advances have been made,most work to date has addressed the diagnostic utility of these techniques in the context of cirrhosis caused by chronic hepatitis C infection.In the present review,we examine the advantages afforded by use of non-invasive methods to diagnose cirrhosis in patients with CHB infections and the utility of such methods in clinical practice.
文摘The development of sensitive assays to detect small amounts of hepatitis B virus(HBV) DNA has favored the identification of occult hepatitis B infection(OBI), a virological condition characterized by a low level of HBV replication with detectable levels of HBV DNA in liver tissue but an absence of detectable surface antigen of HBV(HBs Ag) in serum. The gold standard to diagnose OBI is the detection of HBV DNA in the hepatocytes by highly sensitive and specific techniques, a diagnostic procedure requiring liver tissue to be tested and the use of non-standardized non-commercially available techniques. Consequently, in everyday clinical practice, the detection of anti-hepatitis B core antibody(antiHBc) in serum of HBs Ag-negative subjects is used as a surrogate marker to identify patients with OBI. In patients with chronic hepatitis C(CHC), OBI has been identified in nearly one-third of these cases. Considerable data suggest that OBI favors the increase of liver damage and the development of hepatocellular carcinoma(HCC) in patients with CHC. The data from other studies, however, indicate no influence of OBI on the natural history of CHC, particularly regarding the risk of developing HCC.
文摘AIM:To investigate the dynamic changes of serum hepatitis B surface antigen(HBs Ag) levels apportioned by the same hepatic parenchyma cell volume(HPCV),namely,hepatic cell quantities.METHODS:Serum HBs Ag levels were detected by electrochemiluminescence and serum HBs Ag levels apportioned by the same HPCV were figured out according to the theory of sphere geometry.HBs Ag levels were compared among different liver inflammation grades,as well as different hepatic fibrosis stages.RESULTS:In hepatitis B e antigen-negative chronic hepatitis B,serum HBs Ag levels in liver histological inflammation grades 1-4 were 3.66 ± 0.40,3.74 ± 0.35,3.74 ± 0.26 and 3.71 ± 0.34 log10 COI(cut off index),respectively,and there were no differences before apportion(P =0.640).Serum HBs Ag levels apportioned by the same HPCV were 5.57 ± 0.62,5.98 ± 0.65,6.59 ± 0.50 and 6.81 ± 0.84 log10 COI,respectively,and there were significant differences after apportion(P < 0.001).Serum HBs Ag levels in hepatic fibrosis stagesⅠ-Ⅳ were 3.66 ± 0.43,3.75 ± 0.33,3.71 ± 0.28 and 3.75 ± 0.26 log10 COI,respectively,and there were no differences before apportion(P =0.513).Serum HBs Ag levels apportioned by the same HPCV were 5.53 ± 0.66,5.98 ± 0.53,6.29 ± 0.46 and 7.06 ± 0.48 log10 COI,respectively,and there were significant differences after apportion(P < 0.001).CONCLUSION:Serum HBs Ag levels apportioned by the same HPCV(hepatic cell quantities),rather than serum HBs Ag levels,increase with liver inflammation grades and hepatic fibrosis stages.
文摘OBJECTIVE: To study the preparation of diagnostic gene chip for detecting hepatitis B virus (HBV) and hepatitis C virus (HCV) and its accuracy in detecting HBV DNA and HCV RNA in serum and liver tissues. METHODS: The probes, which depend on the conservative gene fragment of hepatitis virus, was designed, synthesized and spotted on the modified glass. The probes and some other control probes were assembled on the diagnostic microarray of hepatitis virus. The gene of hepatitis virus, purified from blood or tissue, was labeled with fluorescence and hybridized to the microarray. The hybridized microarry was scanned with microarray scanner and the diagnostic result was analyzed from the scanning data. Fourty patients with hepatitis B virus and 40 healthy people or 40 patients with hepatitis C virus were subjected to detection of HBV DNA and HCV RNA with the hepatitis virus gene chip by the double-blind method. Paraffin liver specimens obtained from 99 cases of posthepatitic cirrhosis were used to detect HBV DNA. The liver tissues and serum from 15 cases of chronic hepatitis B were used to detect HBV DNA. Simultaneously, HBsAg and HBcAg were detected in the serum by fluorescence microparticle quantitation, HBV DNA and HCV RNA in the serum by PCR, and HBcAg in liver tissues by immunocytochemistry or HBV DNA by in situ molecular hybridization. RESULTS: Chip detection of serum specimens showed that 30 patients were HBV DNA positive and 10 HBV DNA negative in the 40 patients with HBV positive, 25 patients were HCV RNA positive and 15 patients were HCV RNA negative in the 40 patients with HCV positive, and all were HBV and HCV negative in the 40 healthy people. In 15 patients with HBV marker positive who were subjected to liver biopsy, 15 patients were detected HBV DNA positive in serum by gene chip, 15 patients HBcAg positive in liver tissues by immunocytochemistry, 14 patients HBV DNA positive in liver tissues by in situ molecular hybridization, and 14 patients HBV DNA positive in liver tissues by gene chip. Paraffin live
文摘The association of primary sclerosing cholangitis(PSC)and autoimmune hepatitis(AIH)is known as an overlap syndrome(OS).OS can also be described in the setting of concomitant presence of AIH and PSC.These diseases can in some cases be associated with ulcerative colitis.In this case report we describe,to our knowledge,the first case in the literature of a young Caucasian male suffering from ulcerative colitis and an overlap syndrome consisting of an association betweenPSC-AIH,with the concomitant presence of a membranous glomerulonephritis.
文摘干扰素α（IFNα）具有抗病毒和免疫调节作用,停药后还有一定比例的后效应及HBsAg消失率[1]。替比夫定有较强的抑制乙型肝炎病毒（hepatitis B virus,HBV）复制和较高的HBeAg血清学转换率[2]。本研究报道42例HBeAg阳性慢性乙型肝炎（chronic hepatitis B,CHB）患者,经PegIFN-α-2a序贯替比夫定治疗,4例获得HBsAg血清学转换,报告如下。
