HUMORAL IMMUNE RESPONSE IN CHRONIC ACTIVE HEPATITIS IN RELATION TO THE PRESENCE OF HBSAG
Abstract
IMMUNOLOGICAL MECHANISMS HAVE BEEN CONCERNED TO PLAY AN IMPORTANT ROLE IN THE DEVELOPMENT OF CHRONIC ACTIVE HEPATITIS (CAH) ALTHOUGH IT IS NOT EASY TO DEFINE THEIR REAL CONTRIBUTION IN THE PATHOGENESIS OF THE DISEASE. THE HUMORAL IMMUNE RESPONSE OF PATIENTS, WITH BIOPSY PROVED, CAH WAS STUDIED, BOTH IN THE HBSAG POSITIVE (40 PATIENTS) AND IN THE HBSAG NEGATIVE (24 PATIENTS) GROUP. SERUM IMMUNOGLOBULINS, VIRAL ANTIBODIES TO RUBELLA, MEASLES AND CYTOMEGALOVIRUS (CMV) AND NON-ORGAN SPECIFIC AUTOANTIBODIES - ANTINUCLEAR (ANA), SMOOTH MUSCLE ANTIBODIES(SMA), AND ANTIMITOCHONDRIAL ANTIBODIES (AMA) - WERE STUDIED. THE IMMUNOGLOBULINS WERE DETERMINED BY SINGLE RADIAL IMMUNODIFFUSION. THE VIRAL ANTIBODIES WEREDETECTED BY THE METHOD OF HEMAGGLUTINATION-INHIBITION AND COMPLEMENT FIXATIONAND THE AUTOANTIBODIES BY INDIRECT IMMUNOFLUORESCENCE. HIGHER LEVELS OF IMMUNOGLOBULINS, SPECIALLY IGG AND IGH, WERE FOUND IN THE HBSAG NEGATIVE GROUP OF PATIENTS. INCREASED FREQUENCY OF ANTIBODIES TO RUBELLA WAS ...
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