庚型肝炎病毒感染对急性肝炎致病性的探讨

目的 探讨急性肝炎患者肝组织中庚型肝炎病毒（ＨＧＶ）的感染状况及其致病性。方法 采用免疫组织化学方法对３７例血清学肝炎病毒标记甲￣戊型均阴性的急性肝炎患者肝穿肝组织中的ＨＧＶ ＮＳ５抗原等进行检测，并对ＨＧＶ感染的致病性进行研究。结果 ＨＧＶ ＮＳ５抗原的检出率为３７．８％（１４／３７），其中ＨＧＶ ＮＳ５单项阳性４例（急性庚型肝炎组）。结果 ＨＧＶ ＮＳ５抗原的检出率为３７．８％（１４／３７），

A study on the pathogenicity of acute hepatitis G infection

OBJECTIVE: To study the infection due to hepatitis G virus (HGV) in liver tissues of patients with acute hepatitis and to investigate its pathogenicity. METHODS: HGV NS5 antigen was detected by using immunohistochemical method in the liver biopsy tissues of patients with acute hepatitis but serologically negative to hepatitis virus antigens from A to E. The clinical and pathological data were also analysed. RESULTS: 37 samples were tested, HGV NS5 antigen was detected in 14 (37.8%). 4 of the 14 were positive for HGV NS5 antigen alone (acute hepatitis G group) and 10 other cases were also positive for HBsAg, hepatitis C virus (HCV) NS3 antigen or EB virus antigen (superinfection group). 7 cases were HBsAg positive alone (acute hepatitis B group) and the remaining 16 cases were negative for all the antigens mentioned above (non-A - G hepatitis group). There was no difference among the 4 groups in the detecting rate of Fas antigen, histological activity index (HAI), serum alanine transferase (ALT) and total bilirubin (TBil). CONCLUSION: It is suggested that HGV appears to play some role in the pathogenesis of acute viral hepatitis and the degree of liver injury in acute hepatitis G may be as severe as that of hepatitis caused by other types of viruses.