Impaired glucose tolerance and insulin resistance are associated with increased adipose 11beta-hydroxysteroid dehydrogenase type 1 expression and elevated hepatic 5alpha-reductase activity.
OBJECTIVE: The precise molecular mechanisms contributing to the development of insulin resistance, impaired glucose tolerance (IGT), and type 2 diabetes are largely unknown. Altered endogenous glucocorticoid metabolism, including 11beta-hydroxysteroid dehydrogenase type 1 (11beta-HSD1), which generates active cortisol from cortisone, and 5alpha-reductase (5alphaR), which inactivates cortisol, has been implicated. RESEARCH DESIGN AND METHODS: A total of 101 obese patients (mean age 48 +/- 7 y...Expand abstract
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