Markers of hepatitis B virus (HBV) and immune response against them were studied in 18 chronic asymptomatic carriers, 8 patients of the virus induced chronic liver disease (CLD), and 7 patients of chronic alcoholic liver cirrhosis, who were also chronic HBV carriers (CALC). The LMI responses to HBeAg were elevated in HBeAg and/or HBV-DNA positive chronic asymptomatic carriers, (median response 31.5%), along with elevation of serum alanine aminotransferase (sALT) levels (59-150 IU/l). On the other hand the LMI responses to this antigen, in HBeAg and HBV-DNA negative chronic carriers were in the normal range (median response 12%) and their sALT levels were also normal (7-50 IU/l). The CLD and CALC patients did not show any relation between their LMI to HBeAg and sALT levels. In contrast no relation between LMI to HBsAg and sALT levels was observed in any group. The LMI responses to HBsAg in CLD patients were elevated (median response 38%) and the responses of chronic asymptomatic carriers and CALC patients were either in the normal range or poor (median responses, 18 and 7% respectively), irrespective of their sALT levels. These results suggest that T cell responses to both the antigens may be involved in liver cell damage.
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