The role of hepatic insulin receptors in the regulation of glucose production.

Cherrington AD
J Clin Invest. 2005 115 (5): 1136-9

PMID: 15864342 · PMCID: PMC1087191 · DOI:10.1172/JCI25152

The inability of insulin to suppress hepatic glucose production (HGP) is a key defect found in type 2 diabetes. Insulin inhibits HGP through both direct and indirect means, the latter of which include inhibition of glucagon secretion, reduction in plasma nonesterified fatty acid level, decrease in the load of gluconeogenic substrates reaching the liver, and change in neural signaling to the liver. Two studies in this issue of the JCI demonstrate that selective changes in the expression of insulin receptors in mouse liver do not have a detectable effect on the ability of insulin to inhibit HGP (see the related articles beginning on pages 1306 and 1314). These provocative data suggest that the indirect effects of insulin on the liver are the primary determinant of HGP in mice.

MeSH Terms (7)

Animals Glucose Liver Mice Mice, Knockout Muscles Receptor, Insulin

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