Body composition and bone mineral density after ovarian hormone suppression with or without estradiol treatment

Menopause : the Journal of the North American Menopause Society
Karen L SheaW M Kohrt

Abstract

Suppression of ovarian hormones in premenopausal women on gonadotropin-releasing hormone agonist (GnRH(AG)) therapy can cause fat mass (FM) gain and fat-free mass (FFM) loss. Whether this is specifically caused by a decline in serum estradiol (E2) is unknown. This study aims to evaluate the effects of GnRH(AG) with placebo (PL) or E2 add-back therapy on FM, FFM, and bone mineral density (BMD). Our exploratory aim was to evaluate the effects of resistance exercise training on body composition during the drug intervention. Seventy healthy premenopausal women underwent 5 months of GnRH(AG) therapy and were randomized to receive transdermal E2 (GnRH(AG) + E2, n = 35) or PL (GnRH(AG) + PL, n = 35) add-back therapy. As part of our exploratory aim to evaluate whether exercise can minimize the effects of hormone suppression, some women within each drug arm were randomized to undergo a resistance exercise program (GnRH(AG) + E2 + Ex, n = 12; GnRH(AG) + PL + Ex, n = 12). The groups did not differ in mean (SD) age (36 [8] and 35 [9] y) or mean (SD) body mass index (both 28 [6] kg/m). FFM declined in response to GnRH(AG) + PL (mean, -0.6 kg; 95% CI, -1.0 to -0.3) but not in response to GnRH(AG) + E2 (mean, 0.3 kg; 95% CI, -0.2 to 0.8) or G...Continue Reading

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Citations

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