PMID- 19998243 OWN - NLM STAT- MEDLINE DCOM- 20110202 LR - 20131121 IS - 1439-3646 (Electronic) IS - 0947-7349 (Linking) VI - 118 IP - 9 DP - 2010 Oct TI - The effect of metformin treatment for 2 years without caloric restriction on endocrine and metabolic parameters in women with polycystic ovary syndrome. PG - 633-7 LID - 10.1055/s-0029-1237705 [doi] AB - INTRODUCTION: The aim of this study was to evaluate long-term changes in endocrine and metabolic parameters and body mass index in women with polycystic ovary syndrome (PCOS) who were treated with metformin over 2 years without caloric restriction. MATERIAL AND METHODS: Twenty-six obese women with PCOS were treated with metformin over 2 years without caloric restriction. Clinical, metabolic and endocrine parameters and the body mass index were measured and an oral glucose tolerance test was carried out to calculate insulin resistance indices at the beginning and at the follow-up after 2 years. The Homeostatic Model for Assessment of Insulin Resistance (HOMA-IR) was calculated. RESULTS: No significant changes in body mass index or HOMA-IR were observed. However, a significant decrease in fasting and 2-h insulin levels was observed. Women showed a significant increase in sex hormone-binding globulin (SHBG) levels, while total testosterone (TT) levels and the free androgen index decreased significantly. Furthermore a significant decrease in hirsutism was observed. There was a decrease in cholesterol and an increase in high-density lipoprotein. CONCLUSIONS: Long-term treatment with metformin in women with PCOS appears to reduce androgen excess due to increased SHBG and decreased TT levels resulting in improvement of hirsutism as a clinical sign of androgen excess. Furthermore a significant decrease in fasting and 2-h insulin levels and slightly improved insulin resistance indices were observed. CI - (c) J. A. Barth Verlag in Georg Thieme Verlag KG Stuttgart . New York. FAU - Oppelt, P G AU - Oppelt PG AD - Department of Obstetrics and Gynecology, University Hospital Erlangen, Erlangen, Germany. FAU - Mueller, A AU - Mueller A FAU - Jentsch, K AU - Jentsch K FAU - Kronawitter, D AU - Kronawitter D FAU - Reissmann, C AU - Reissmann C FAU - Dittrich, R AU - Dittrich R FAU - Beckmann, M W AU - Beckmann MW FAU - Cupisti, S AU - Cupisti S LA - eng PT - Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091208 PL - Germany TA - Exp Clin Endocrinol Diabetes JT - Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association JID - 9505926 RN - 0 (Blood Glucose) RN - 0 (Hypoglycemic Agents) RN - 0 (Insulin) RN - 0 (Sex Hormone-Binding Globulin) RN - 3XMK78S47O (Testosterone) RN - 9100L32L2N (Metformin) SB - IM MH - Blood Glucose/metabolism MH - Caloric Restriction MH - Drug Administration Schedule MH - Endocrine System/*drug effects MH - Female MH - Follow-Up Studies MH - Humans MH - Hypoglycemic Agents/administration & dosage/pharmacology/therapeutic use MH - Insulin/metabolism MH - Insulin Resistance MH - Metformin/administration & dosage/*pharmacology/therapeutic use MH - Obesity/blood/complications/drug therapy/metabolism MH - Polycystic Ovary Syndrome/blood/complications/drug therapy/*metabolism MH - Sex Hormone-Binding Globulin/metabolism MH - Testosterone/blood/metabolism MH - Time Factors EDAT- 2009/12/10 06:00 MHDA- 2011/02/03 06:00 CRDT- 2009/12/10 06:00 PHST- 2009/12/10 06:00 [entrez] PHST- 2009/12/10 06:00 [pubmed] PHST- 2011/02/03 06:00 [medline] AID - 10.1055/s-0029-1237705 [doi] PST - ppublish SO - Exp Clin Endocrinol Diabetes. 2010 Oct;118(9):633-7. doi: 10.1055/s-0029-1237705. Epub 2009 Dec 8.