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  • Title: [The effect of obesity on ovarian function. I. Serum insulin and insulin dependent protein concentrations in obese patients with polycystic ovary syndrome].
    Author: Kinalski M, Kowalska I, Wołczyński S, Straczkowski M, Telejko B, Kinalska I, Szamatowicz M.
    Journal: Ginekol Pol; 1999 Jun; 70(6):419-26. PubMed ID: 10895282.
    Abstract:
    OBJECTIVES: The aim of the present study was to estimate the role of insulin in the pathogenesis of polycystic ovary syndrome. DESIGN: The study was carried out in 21 obese women with PCO, 18 obese women without menstrual disturbances and 9 normal-weight healthy women. MATERIALS AND METHODS: In all patients antropomethric parameters: weight, height, % of body fat, waist and hip girths were measured and than BMI and WHR were calculated. Oral glucose tolerance test after 75 g glucose was done after overnight fast. Plasma glucose and insulin were measured in 0 min, 60 min and 120 min of the test. The concentrations of IGF-I, IGFBP-1, SHBG, LH, FSH, testosterone, cortisol, PRL, estradiol, were estimated. RESULTS: There was statistical significant difference between plasma insulin concentrations in obese patients with PCO in comparison to obese women with normal menstrual cycle (p < 0.05) and control group (p < 0.001). The concentrations of IGFBP-1 and SHBG were similar in both groups of obese patients and differ markedly in comparison to the control group. There were significant correlation between plasma insulin and % body fat, BMI and waist girth in all studied groups. CONCLUSIONS: We conclude that in obese women with PCO insulin influence ovarian androgen production and decreases the serum SHBG and IGFBP-1 which could contribute in the augmentation of the symptoms of PCO.
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