[Active enhancement using B-lymphocytes].
B-lymphocytes given 7 days prior to auxiliary heterotopic heart transplantation significantly delay transplant rejection. T-lymphocytes or purified erythrocytes have no effect at all on the subsequent heart graft. The beneficial effect of blood transfusions could be due to the transfusion of B-lymphocytes, which create a state of active enhancement in the transplant recipient.
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