Isohemagglutinins of Graft Origin after ABO-Unmatched Liver Transplantation

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Abstract
THE increasing success of liver transplantation in recent years has provided an experimental model to study and document the hepatic synthesis of many plasma proteins.1 2 3 4 5 The normal hepatobiliary tract has not been regarded as a major source of antibody,6 , 7 aside from the enteric IgA secreted from plasma into the biliary tree.8 Liver transplantation affords the opportunity to study the production of antibody to red cells. Recipient ABO incompatibility to the donor (a mismatched transplant, e.g., a group A liver transplanted into a group B recipient), although not absolutely contraindicated in liver transplantation, is avoided when possible. However, ABO-unmatched transplants (defined . . .