Estrogens in vascular biology and disease: where do we stand today?

Autor: Pierre Gourdy, Jean-François Arnal, Florence Trémollières, Henrik Laurell, Pierre-Yves Scarabin
Přispěvatelé: Institut de médecine moléculaire de Rangueil (I2MR), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-IFR150-Institut National de la Santé et de la Recherche Médicale (INSERM), Recherche en épidémiologie et biostatistique, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Sud - Paris 11 (UP11), Simon, Marie Francoise, Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées- Institut Fédératif de Recherche Bio-médicale Institution (IFR150)-Institut National de la Santé et de la Recherche Médicale (INSERM), Université Paris-Sud - Paris 11 (UP11)-Institut National de la Santé et de la Recherche Médicale (INSERM)
Rok vydání: 2007
Předmět:
Zdroj: Current Opinion in Lipidology
Current Opinion in Lipidology, Lippincott, Williams & Wilkins, 2007, 18 (5), pp.554-60. ⟨10.1097/MOL.0b013e3282ef3bca⟩
Current Opinion in Lipidology, 2007, 18 (5), pp.554-60. ⟨10.1097/MOL.0b013e3282ef3bca⟩
ISSN: 0957-9672
DOI: 10.1097/mol.0b013e3282ef3bca
Popis: International audience; PURPOSE OF REVIEW: Whereas hormone therapy may increase the risk of coronary heart disease and stroke in menopausal women, epidemiological studies (protection in premenopausal women) suggest and experimental studies (prevention of fatty streak development in animals) demonstrate a major atheroprotective action of estradiol. There is also evidence for a thrombogenic effect of oral estrogens. An understanding of the deleterious and beneficial effects of estrogens is thus required. RECENT FINDINGS: The immuno-inflammatory system plays a key role in the development of fatty streak deposit as well as in the rupture of the atherosclerotic plaque. Whereas estradiol favors an anti-inflammatory effect in vitro (cultured cells), it rather elicits a pro-inflammatory response in vivo involving several subpopulations of the immuno-inflammatory system, which could contribute to plaque destabilization. Endothelium is another important target for estrogens, since estradiol potentiates endothelial nitric oxide and prostacyclin production. The respective actions of estrogens on these cell populations may be influenced by the timing of hormonal therapy initiation, hormone regimens, status of the vessel wall and expression of isoforms of estrogen receptors alpha and beta. SUMMARY: A better understanding of the balance between the deleterious and beneficial effects of estrogens is required and should help to improve hormonal therapy safety and to optimize the prevention of cardiovascular disease after menopause.
Databáze: OpenAIRE