To ascertain the consequences of pancreas transplantation with systemic venous drainage on glucose homeostasis and insulin secretion, glucose and insulin responses to intravenous glucose were compared in 10 recipients and 15 normal control subjects. There were no differences in fasting glucose levels or intravenous glucose disappearance rates. However, basal insulin levels and acute insulin responses to glucose were threefold greater in the recipients. It is not clear whether this consequence of hyperinsulinemia in the recipients is due to the abnormal circulatory drainage, the lack of autonomie input, or concurrent immunosuppressive drug therapy.

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