endocrine/exocrine glands
• islet insulin secretion is increased at low glucose concentrations (3-fold at 2.8 mM glucose) but decreased at high glucose concentrations (about 50% less at 16.8 mM) compared to control
• alpha and beta cell area are normal as is the total insulin content of the islets
|
homeostasis/metabolism
• at 6 months, but not at 2 months, blood glucose concentrations are decreased in fasting mutants expressing cre compared to those without the cre transgene
|
• on a normal or high fat diet blood glucose concentration 60 minutes after the glucose load is significantly higher and insulin response to glucose is impaired; however, insulin tolerance is not impaired
|