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一、前言: 在HBsAg被发现以前,人们已认识到病毒性肝炎病人可发生肝外并发症,但其发生率很少,况在许多情况下又不是由病毒感染引起。这些肝外并发症可分为二类: 1)由HBsAg及抗—HBs的循环免疫复合物(cic)引起。 2)不是由cic引起的, 在人类,免疫复合物疾病(ICD)表现有脉管炎、关节炎、肾小球肾炎,而肝病常不被累及。乙肝病毒的任何抗原(HBsAg、HBeAg、HBcAg)皆可形成免疫复合物聚集在肝外组织中,
I. Preface: Before HBsAg was discovered, it has been recognized that extrahepatic complications may occur in patients with viral hepatitis, but its incidence is very low, and in many cases it is not caused by a viral infection. These extrahepatic complications can be divided into two categories: 1) caused by circulating immune complexes (HBsAg and anti-HBs). 2) Not caused by cic, in humans, immune complex disease (ICD) is characterized by vasculitis, arthritis, and glomerulonephritis, and liver disease is often not involved. Any antigen of hepatitis B virus (HBsAg, HBeAg, HBcAg) can form immune complexes in the extrahepatic tissue,