Tedder R S, Wilson-Croome R
J Hyg (Lond). 1981 Apr;86(2):163-72. doi: 10.1017/s002217240006887x.
A solid phase M-antibody capture radioimmunoassay (MACRIA) and a serum fractionation method were used to quantitate the IgM response to the hepatitis B core antigen (IgM anti-HBc) in acute and chronic hepatitis B infections. Antibody to the core antigen was predominantly of the IgM class during the acute phase of hepatitis B. Resolving acute infections remained positive by MACRIA, but at decreasing levels, for as long as 6 months. IgM anti-HBc persisted in HBsAg carriers but at levels very much lower than seen in acute infections. There was no correlation of IgM anti-HBc with severity of chronic liver disease in carriers. Measurement of IgM anti-HBc by MACRIA enabled accurate identification of acute hepatitis B on single serum specimens.
采用固相M抗体捕获放射免疫测定法(MACRIA)和血清分级分离法对急性和慢性乙型肝炎感染中针对乙型肝炎核心抗原的IgM反应(IgM抗-HBc)进行定量。在乙型肝炎急性期,核心抗原抗体主要为IgM类。急性感染消退后,MACRIA检测仍呈阳性,但水平逐渐下降,可持续长达6个月。IgM抗-HBc在HBsAg携带者中持续存在,但水平远低于急性感染时所见。携带者中IgM抗-HBc与慢性肝病严重程度无相关性。通过MACRIA检测IgM抗-HBc能够在单份血清标本上准确识别急性乙型肝炎。