Progesterone abolishes estrogen and/or atorvastatin endothelium dependent vasodilatory effects / Progesterone abolishes estrogen and/or atorvastatin endothelium dependent vasodilatory effects
Atherosclerosis
; Atherosclerosis;177(01): 89-96, nov 2004.
Article
em En
| SES-SP, SESSP-IDPCPROD, SES-SP
| ID: biblio-1060106
Biblioteca responsável:
BR79.1
Localização: BR79.1
RESUMO
This double blind randomized placebo controlled study assessed the effects of atorvastatin, estradiol and norethisterone, isolated and in combination, on the lipid profile and on vascular reactivity, in post-menopausal women with hypercholesterolemia and arterial hypertension. Ninety-four women aged 5065 were selected. All have received dietary counseling (4 weeks), placebo (4 weeks), and drug therapy (12 weeks) 17- estradiol 2mg/day (E) (n = 17); E + norethisterone acetate 1 mg/day (P) (n = 18); torvastatin 10 mg/day (A) (n = 20); E + A (n = 21) and E + P + A (n = 18). All treatment modalities have significantly reduced total cholesterol (TC) (E = 8.8%, E + P = 10.1%, A = 27.9%, A + E = 29.4% and E + P + A = 35.7%) and LDL-cholesterol (LDL-c) levels (E + P + A = 46.6%, E + A = 45.9%, A = 40.2%, E = 20.3%, and E + P = 12.1%). As concerns HDL-cholesterol (HDL-c), Groups E and E + A had increases of 15.5% and 13.1%, respectively. The addition of a progesterone compound reduced its concentration (Group E + P = −9.1%, and Group E + P + A = −9.5%). By random, approximately half of the patients in each group were designated to the endothelial function evaluation (brachial artery ultrasound). We observed that in Group A (n = 10), in Group E (n = 10) and with the association (Group E + A) (n = 7), there was a significant increase in the flow-mediated vasodilatation as compared to basal measurements. The addition of a progestin has annulled these benefits. Conclusions:
Atorvastatin has promoted more beneficial effects on TC and LDL-c, whereas estradiol was responsible for an increase in HDL-c. The addition of a progesterone derivative abolished these benefits. Atorvastatin, estradiol or both together improved endothelial function, an effect suppressed by the addition of norethisterone.
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Coleções:
06-national
/
BR
Base de dados:
SES-SP
/
SESSP-IDPCPROD
Assunto principal:
Menopausa
/
Endotélio Vascular
/
Terapia de Reposição Hormonal
/
Hipercolesterolemia
/
Hipertensão
Tipo de estudo:
Clinical_trials
Idioma:
En
Revista:
Atherosclerosis
Ano de publicação:
2004
Tipo de documento:
Article