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The effects of estrogen therapy and estrogen combined with different androgenic progestins on carbohydrate and lipid metabolism in overweight-obese younger postmenopausal women.

Author(s): Demir B, Ozturkoglu E, Solaroglu A, Baskan B, Kandemir O, Karabulut E, Haberal A

Affiliation(s): Department of Obstetrics and Gynecology, Ministry of Health Ankara Etlik Maternity and Women's Health Teaching Research Hospital, Ankara, Turkey. demirs@isbank.net.tr

Publication date & source: 2008-06, Gynecol Endocrinol., 24(6):347-53.

OBJECTIVE: The aim of the present study was to compare the effect of three different progestins with differing androgenicity on carbohydrate and lipid metabolism in overweight-obese younger postmenopausal women. Additionally, the relationship between testosterone and insulin resistance was assessed. METHODS: The study included 125 postmenopausal women. Estradiol (E(2)) 2 mg/day was given to 20 hysterectomized women and the remaining 105 women were randomized into three treatment groups: E(2) 2 mg/day plus dienogest 2 mg/day (n=35); E(2) 2 mg/day plus norethisterone acetate (NETA) 1 mg/day (n=35); E(2) 2 mg/day plus medroxyprogesterone acetate (MPA) 2.5 mg/day (n=35). A 75-g oral glucose tolerance test was performed at the initial and 3-month visit. Serum glucose, insulin, total cholesterol, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C) and triglycerides were measured before and after treatment. RESULTS: A significant treatment-related increase was observed only in the E(2)/MPA group for insulin resistance (p=0.031). When the change in the insulin/glucose ratio was compared, the E(2) group was significantly different from the E(2)/MPA and E(2)/NETA groups (p=0.008 and 0.02, respectively). Only the E(2)/dienogest group showed a treatment-related increase in fasting glucose level (p=0.037). A decrease in total cholesterol and LDL-C levels was observed in all groups (p=0.004 and 0.012, respectively). The only significant decrease in HDL-C level was observed in the E(2)/NETA group (p=0.005). CONCLUSION: Estrogen therapy had a positive effect on carbohydrate and lipid metabolism in overweight-obese postmenopausal women. The addition of progestin to estrogen therapy attenuated estrogen's positive effects slightly; however, the biological actions of the three different androgenic progestins used did not result in any variation.

Page last updated: 2008-08-11

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