Abstract
In this study the presence of HBcAg in placental tissue of symptom-free HBsAg-carrier mothers has been determined by the immunoperoxidase technique. The presence of HBcAg in the major placental cytotypes was mostly limited to the trophoblastic lineage. Moreover the activated macrophages with their strong cytoplasmic reaction to the antigen phagocytosis play a remarkable role in the immune response. Because there are continuous channels that link the human amnion through the trophoblastic lineage, including the endovascular trophoblast with maternal decidual vessels, a functional exchange system may be considered valid. This would influence the transmission of infection.
Published Version
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