Objectives: The study aimed to assess the associations between circulating vaspin levels and nutritional status (assessed on tha basis of BMI) as well as insulin resistance in PCOS.
Material And Methods: Eighty-seven PCOS women, 48 obese and 39 normal weight, were enrolled in the cross-sectional study. Seventy-two Non-PCOS women, 41 obese and 31 normal weight, constituted a control group. Body mass, height and waist circumference as well as body composition by bioimpedance were measured. In the morning (16h after the last meal) we determined: serum glucose, insulin, androgens, gonadotropin (LH, FSH) and sex hormone-binding globulin (SHBG) as well as plasma vaspin levels. Standard HOMA-IR formula was used to assess insulin resistance (IR).
Results: Plasma vaspin levels were significantly lower in PCOS, both normal weight and obese, than in Non-PCOS groups. Vaspin levels were similar in normal weight and obese PCOS subgroups. There was no association between plasma vaspin levels and anthropometric parameters in PCOS group. While in Non-PCOS group a negative correlation between plasma vaspin levels and body mass (r = -0.26; p < 0.05) was found. We did not observe correlations between plasma vaspin levels and serum glucose and insulin concentrations as well as HOMA-IR values, however, in multivariable, stepwise backward regression waist circumference and HOMA-IR values explained 18.0% of plasma vaspin levels variability in the study subjects.
Conclusions: PCOS occurrence is associated with decreased vaspin levels. The influence of nutritional status on vaspin level observed in Non-PCOS is abolished in PCOS women, possibly by more severe insulin resistance.
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| http://dx.doi.org/10.5603/GP.2020.0056 | DOI Listing |
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