Dydrogesterone does not reverse the effects of estradiol on endothelium-dependant vasodilation in postmenopausal women: a randomised clinical trial

被引:18
作者
Gambacciani, M
Monteleone, P
Vitale, C
Silvestri, A
Fini, M
Genazzani, AR
Rosano, GMC
机构
[1] TOSINVEST SANITA, Dept Internal Med, Cardiovasc Res Unit, I-00163 Rome, Italy
[2] Univ Pisa, Dept Reprod Med & Child Dev, Div Obstet & Gynecol, I-56100 Pisa, Italy
关键词
dydrogesterone; hormone replacement therapy; coronary artery disease;
D O I
10.1016/S0378-5122(02)00184-6
中图分类号
R592 [老年病学]; C [社会科学总论];
学科分类号
03 ; 0303 ; 100203 ;
摘要
Objectives: The purpose of this study was to evaluate endothelium-dependent flow-mediated dilation (FMD) in the brachial artery and the plasma levels of endothelin-1 in postmenopausal women at risk for coronary artery disease before and after treatment with both estradiol and estradiol plus dydrogesterone. Methods: Sixteen postmenopausal women (PMW) (mean age 58 +/- 9 years) with more than two risk factors for coronary artery disease, were randomized to receive either oral estradiol (2 mg) for 28 days or oral estradiol (2 mg) for 14 days and oral estradiol (2 mg) and dydrogesterone (10 mg) for 14 days, in a double-blind, placebo-controlled, single cross-over study. Patients were crossed-over the complementary treatment 7 days after completing the first treatment. The study of forearm blood flow and the measurement of plasma endothelin-1 levels was carried out before and after each treatment. Results: Estradiol significantly increased FMD as compared to baseline; the addition of dydrogesterone did not affect the effect of estradiol on FMD. Similarly reactive hyperemic flow increased after estradiol alone or in association with dydrogesterone compared to baseline. Plasma levels of endothelin-1 were significantly reduced by estradiol both when administered alone or in association with dydrogesterone. Conclusions: Hormone replacement therapy with estradiol and dydrogesterone improves endothelial function and reduces plasma levels of endothelin-1 in PMW at risk for coronary artery disease. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
引用
收藏
页码:117 / 123
页数:7
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