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- W1971253834 abstract "Dehydroepiandrosterone (DHEA) and the dehydroepiandrosterone sulfate (DHEA‐S) are steroids produced mainly by the adrenal cortex. There is evidence from both human and animal models suggesting beneficial effects of these steroids for obesity, diabetes mellitus, hypertension, and osteoporosis, conditions associated with the post‐menopausal period. Accordingly, we hypothesized that DHEA supplementation in ovariectomized (OVX) female rats fed a high‐fat diet would maintain glucose‐induced insulin secretion (GSIS) and pancreatic islet function. OVX resulted in a 30% enlargement of the pancreatic islets area compared to the control rats, which was accompanied by a 50% reduction in the phosphorylation of AKT protein in the pancreatic islets. However, a short‐term high‐fat diet induced insulin resistance, accompanied by impaired GSIS in isolated pancreatic islets. These effects were reversed by DHEA treatment, with improved insulin sensitivity to levels similar to the control group, and with increased serine phosphorylation of the AKT protein. These data confirm the protective effect of DHEA on the endocrine pancreas in a situation of diet‐induced overweight and low estrogen concentrations, a phenotype similar to that of the post‐menopausal period." @default.
- W1971253834 created "2016-06-24" @default.
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- W1971253834 date "2014-01-01" @default.
- W1971253834 modified "2023-10-14" @default.
- W1971253834 title "DHEA supplementation in ovariectomized rats reduces impaired glucose-stimulated insulin secretion induced by a high-fat diet" @default.
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- W1971253834 doi "https://doi.org/10.1016/j.fob.2014.01.005" @default.
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