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  • Title: Serum vascular endothelial growth factor B is elevated in women with polycystic ovary syndrome and can be decreased with metformin treatment.
    Author: Cheng F, Zhao L, Wu Y, Huang T, Yang G, Zhang Z, Wu Y, Jia F, Wu J, Chen C, Liu D.
    Journal: Clin Endocrinol (Oxf); 2016 Mar; 84(3):386-93. PubMed ID: 26387747.
    Abstract:
    OBJECTIVE: To determine serum vascular endothelial growth factor B (VEGF-B) levels in polycystic ovary syndrome, their association with insulin resistance and β-cell dysfunction, and the effect of metformin on serum VEGF-B levels. DESIGN: A cross-sectional, interventional study. PATIENTS: We recruited 103 women with polycystic ovary syndrome and 96 age-matched healthy controls. Serum VEGF-B levels were determined in all participants, and 44 polycystic ovary syndrome patients randomly received metformin. MEASUREMENTS: We measured VEGF-B levels in healthy controls and women with polycystic ovary syndrome before and after metformin treatment. RESULTS: Women with polycystic ovary syndrome had higher serum VEGF-B levels, which decreased with metformin treatment. In the lean and overweight/obese groups, patients with polycystic ovary syndrome had higher plasma VEGF-B levels than did healthy controls (P < 0·05). VEGF-B levels were correlated with body mass index, body fat percentage, M values, homeostasis model assessment of insulin resistance and β-cell function indices. A multiple linear regression analysis showed that VEGF-B level was associated with M values after adjusting for age, body mass index, serum sex hormones and serum lipids in women with polycystic ovary syndrome. CONCLUSIONS: Serum VEGF-B is significantly higher in women with polycystic ovary syndrome and is closely and positively related to insulin resistance. Metformin treatment reduces VEGF-B levels and ameliorates insulin resistance.
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