On the effect of insulin on glucose-6-phosphate dehydrogenase and fatty acid synthetase activity in mouse liver.

Regulation of glucose-6-phosphate dehydrogenase and fatty acid synthetase activity in mouse liver is examined in diabetic and normal mice. Up to a 4-fold increase of both enzymes can be observed in streptozotocin diabetic mice when transferred to a fatless, inducing diet. Administration of insulin does not increase enzyme activity at several doses and under a variety of conditions. This is a strong indication that insulin is not a necessary component of the induction system.