Fertility and sterility · 1994
Metabolic effects of estrogens and progestins.
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LaRosa J C
Аннотация
OBJECTIVE: To review the effects of exogenous estrogen and progestin on metabolic risk factors for coronary artery disease in women.
DESIGN: Review of selected literature.
SETTING: Population studies and clinical trials.
PATIENTS: Premenopausal and postmenopausal women.
INTERVENTIONS: Exogenous gonadal hormones in oral contraceptives and hormone replacement regimens.
MAIN OUTCOME MEASURES: Lipoprotein, hemostatic, carbohydrate, and blood pressure metabolic parameters.
RESULTS: Favorable lipoprotein changes have been demonstrated in both observational studies and clinical trials of effects of exogenous hormones on cardiovascular risk factors in women. These include declines in low-density lipoprotein, apoprotein B, and lipoprotein(a), and increases in high-density lipoprotein (HDL), HDL2, and apoprotein A-I. Hormone replacement effects on triglyceride are minor and, in most patients, probably benign. Evidence is unconvincing that clinically significant changes in clotting factors, carbohydrate metabolism, or blood pressure take place as a result of postmenopausal hormone interventions. In fact, carbohydrate metabolism and blood pressure may be improved slightly. Metabolic studies do not, thus far, provide any contraindications to either estrogen replacement therapy (ERT) or hormone replacement therapy (HRT) in appropriately selected subjects. However, because studies of metabolic risk factors generally have been done in patients who were not hyperlipidemic, hypercoagulable, hyperglycemic, or hypertensive, little is known about the metabolic effects of ERT or HRT on pre-existing metabolic abnormalities.
DESIGN: Review of selected literature.
SETTING: Population studies and clinical trials.
PATIENTS: Premenopausal and postmenopausal women.
INTERVENTIONS: Exogenous gonadal hormones in oral contraceptives and hormone replacement regimens.
MAIN OUTCOME MEASURES: Lipoprotein, hemostatic, carbohydrate, and blood pressure metabolic parameters.
RESULTS: Favorable lipoprotein changes have been demonstrated in both observational studies and clinical trials of effects of exogenous hormones on cardiovascular risk factors in women. These include declines in low-density lipoprotein, apoprotein B, and lipoprotein(a), and increases in high-density lipoprotein (HDL), HDL2, and apoprotein A-I. Hormone replacement effects on triglyceride are minor and, in most patients, probably benign. Evidence is unconvincing that clinically significant changes in clotting factors, carbohydrate metabolism, or blood pressure take place as a result of postmenopausal hormone interventions. In fact, carbohydrate metabolism and blood pressure may be improved slightly. Metabolic studies do not, thus far, provide any contraindications to either estrogen replacement therapy (ERT) or hormone replacement therapy (HRT) in appropriately selected subjects. However, because studies of metabolic risk factors generally have been done in patients who were not hyperlipidemic, hypercoagulable, hyperglycemic, or hypertensive, little is known about the metabolic effects of ERT or HRT on pre-existing metabolic abnormalities.