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  • Title: Insulin resistance and secretion in polycystic ovarian disease.
    Author: Bruno B, Poccia G, Fabbrini A.
    Journal: J Endocrinol Invest; 1985 Oct; 8(5):443-8. PubMed ID: 2934464.
    Abstract:
    In order to verify the relationship between insulin resistance and hyperandrogenism in Polycystic ovary disease (PCOD), circulating levels of insulin in response to oral glucose tolerance test (OGTT) were assessed in 23 PCOD patients and 10 matched control subjects without obesity, acanthosis nigricans and impaired glucose tolerance. In PCOD patients serum total testosterone (T), dehydroepiandrosterone sulfate (DHEA-S), LH and LH/FSH ratio were significantly higher than in control subjects; whereas urinary 17-ketosteroids (17-KS) and glycemic response to OGTT were not different. PCOD patients were clearly hyperinsulinemic before and during OGTT compared to the control group: mean +/- SD basal insulin (Io) (23.4 +/- 10.3 vs 11.3 +/- 4.6 microU/ml, p less than 0.001) and the sums of insulin levels (sigma I) during OGTT (341.4 +/- 148.9 vs 162.2 +/- 56 microU/ml, p less than 0.001). In the two groups serum T, but not DHEA-S, LH, urinary 17-KS and the degree of obesity, was strongly associated with Io (r = 0.458, p less than 0.01) and sigma I (r = 0.419, p less than 0.02), as well as with insulin resistance as assessed by basal (r = 0.425, p less than 0.02) and postglucose challenge (r = 0.384, p less than 0.05) insulin to glucose ratio. These results confirm that the hyperinsulinism and insulin resistance in PCOD is not related to obesity and suggest that the hyperandrogenism may be partially responsible of the observed imbalance in glucose-insulin homeostasis.
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