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Published on: August 13, 2019
[Effect of hormone replacement therapy on homocysteine and echocardiography in postmenopausal women]
Ying Hui1, Yiyong Wu, Luyan Xiao
1Department of Obstetrics and Gynecology, Beijing Hospital, Ministry of Public Health, Beijing 100730, China.
Insights
Short-term hormone replacement therapy (HRT) does not affect homocysteine levels in postmenopausal women. However, long-term HRT users show lower plasma homocysteine compared to non-users.
Area of Science:
- Endocrinology
- Cardiovascular Health
- Metabolic Studies
Context:
- Menopause is associated with hormonal changes impacting cardiovascular risk.
- Elevated homocysteine levels are a potential risk factor for cardiovascular disease.
- Hormone replacement therapy (HRT) is used to manage menopausal symptoms.
Purpose:
- To investigate the impact of HRT on fasting total plasma homocysteine levels.
- To assess the effects of HRT on echocardiographic parameters in postmenopausal women.
Summary:
- A 3-month HRT regimen (conjugated equine estrogen with medroxyprogesterone acetate) did not alter fasting plasma homocysteine in postmenopausal women.
- Postmenopausal women using HRT for 1.5 years exhibited significantly lower plasma homocysteine levels compared to those who never used HRT.
- Echocardiography revealed no significant differences between long-term HRT users and non-users.
Impact:
- Short-term HRT does not appear to influence homocysteine levels.
- Long-term HRT use may be associated with reduced homocysteine levels.
- HRT does not seem to affect cardiac structure or function as assessed by echocardiography in the long term.
Objective:
To observe the effects of hormone replacement therapy (HRT) on fasting total plasma homocysteine levels and echocardiography in postmenopausal women.
Methods:
Subjects were assigned to four groups. Group I: 30 postmenopausal women were assigned to sequentially combined daily 0.625 mg conjugated equine estrogen (CEE) plus 2 mg medroxyprogesterone acetate (MPA) or plus 4 mg MPA daily for 14 days in a 28 day cycle for 3 months. Group II: 30 postmenopausal women did not received HRT. Group III: 20 postmenopausal women who took HRT for 1.5 years. Group IV: 20 postmenopausal women who never took HRT. Measurement of fasting total plasma homocysteine was performed before and after 3 months treatment in group I and group II. Fasting total plasma homocysteine was determined and echocardiography was taken in group III and group IV.
Results:
Fasting total plasma homocysteine concentrations were not altered significantly after 3 months in group I and group II [before HRT: (9.3 +/- 2.5) micro mol/L, (9.4 +/- 2.9) micro mol/L; after HRT: (9.1 +/- 2.8) micro mol/L, (9.8 +/- 3.6) micro mol/L, respectively (P > 0.05)]. Compared with women of group III, women of group IV had statistically significant lower plasma homocysteine [(8.0 +/- 1.3) micro mol/L, (10.3 +/- 3.2) micro mol/L, respectively (P < 0.05)]. Echocardiography was not found any difference between those two groups.
Conclusions:
Three months HRT has no effect on plasma homocysteine levels in postmenopausal women but the postmenopausal women using HRT 1.5 years have lower plasma homocysteine levels than those who never received HRT. Echocardiography showed no detectable changes between women received 1.5 years HRT and those who received no HRT.
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