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Estrogens, progestins and lipid metabolism
1Dept. of Medicine, Helsinki University Central Hospital, Finland.
Maturitas
|May 1, 1996
Summary
Postmenopausal hormone therapy affects lipid risk factors for heart disease. Estrogen benefits are clear, but progestins modify these effects, impacting HDL cholesterol and reducing Lp(a) levels.
Area of Science:
- Cardiovascular Medicine
- Endocrinology
- Lipid Metabolism
Background:
- Postmenopausal hormone therapy is widely used.
- Estrogen and progestin use can influence cardiovascular risk factors.
- Understanding effects on lipoproteins is crucial for CHD prevention.
Purpose of the Study:
- Review recent literature on postmenopausal estrogen and progestin effects.
- Analyze impacts on major plasma lipoprotein risk factors for coronary heart disease (CHD).
Main Methods:
- Literature review of medical journals.
- Information retrieval using Medline and Current Contents databases.
Main Results:
- Estrogen effectively reduces LDL cholesterol and elevates HDL cholesterol.
- Progestins, particularly those with androgenic activity, can decrease HDL2 subfractions.
- Estrogen and progestin combinations, and progestins alone, lower Lp(a) levels, a CHD risk factor.
Conclusions:
- Hormone replacement therapies partially impact lipid metabolism.
- Ongoing research clarifies mechanisms for developing safer, more effective CHD prevention strategies.