RESUMO
To investigate the effect of metformin on the endocrine variables in clomiphene resistant polycystic ovarian disease [PCOD]. Departments of Obstetrics and Gynaecology, Internal Medicine and Clinical Pathology, Faculty of Medicine, Tanta University, Egypt. Thirty-three infertile women due to PCOD were enrolled and divided into 23 cases received oral metformin 850 ma/ twice daily for 8 weeks and 10 cases received placebo for the same period. Basic hormonal parameters, serum glucose and insulin were tested before and after treatment. Metformin led to 65% improvement in acne score, 57% menstrual improvement and significant reduction of serum LH androstenedione, DHEAS, free testosterone, glucose and insulin. Highly significant elevation of SHBG was observed. The mean fasting insulin dropped from 28 uU/ml before to 16 uU/ml after therapy and this drop was significantly correlated to changes in testosterone, free testosterone, SHBG and glucose. Metformin may be suggested as a therapy for women with colomiphene resistant polycystic ovarian disease. It can ameliorate hyperinsulinemia, hyperadrogenemia with their impacton the restoration of regular menses and ovulation; and hence improving the pregnancy capability