Differential insulin response to oral glucose tolerance test (OGTT) in overweight/obese polycystic ovary syndrome patients undergoing to myo-inositol (MYO), alpha lipoic acid (ALA), or combination of both.

Department of Obstetrics and Gynecology, Gynecological Endocrinology Center, University of Modena and Reggio Emilia, Modena, Italy. Department of Gynecology and Obstetrics, University of Pisa, Pisa, Italy.

Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology. 2019;(12):1088-1093
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Abstract

Polycystic ovary syndrome is characterized by several endocrine impairments, insulin resistance and hyperinsulinemia. We aimed to evaluate the effects of myo-inositol (MYO), alpha-lipoic acid (ALA) and a combination of both. Setting: retrospective study. Ninety overweight/obese patients were considered. Presence or absence of first grade diabetic relatives was checked. Patients were administered MYO (1 g/die per os), ALA (400 mg/die per os), MYO (1 gr/die) + ALA (400 mg/die) per os. Only 76 out of 90 patients completed the 12 weeks of treatment. Patients were evaluated before and after the treatment interval for LH, FSH, E2 (estradiol), A (androstenedione), T (testosterone) plasma levels, oral glucose tolerance test (OGTT). All treatments demonstrated specific positive effects: MYO modulated more hormonal profiles and OGTT in polycystic ovary syndrome (PCOS) with no familial diabetes, ALA improved insulin response to OGTT and metabolic parameters in all patients with no effects on reproductive hormones, MYO + ALA improved hormonal and metabolic aspects and insulin response to OGTT in all patients. Presence of familial diabetes is a relevant clinical aspect. MYO is less effective when familial diabetes is present, ALA improved only metabolic aspects while MYO + ALA was effective on all PCOS patients independently from familial diabetes.

Methodological quality

Publication Type : Observational Study

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