Impaired endothelial function in young women with premature ovarian failure: normalization with hormone therapy.
Normal menopause is associated with vascular endothelial dysfunction, an early stage of atherosclerosis. The effect of premature ovarian failure (or premature menopause) on endothelial function in young women is unknown. Endothelial function was assessed in 18 women with premature ovarian failure before and after 6 months of hormone therapy and was compared with the endothelial function of 20 age- and body mass index-matched premenopausal women. Brachial artery diameter was measured both during hyperemia (an index of endothelium-dependent vasodilation) and in response to glyceryl trinitrate (an index of endothelium-independent vaso-dilation). Flow-mediated dilation was significantly lower in women with premature ovarian failure at baseline (increase in brachial artery diameter during hyperemia by 3.06 +/- 4.33%) than in control women (increase by 8.84 +/- 2.15%; P < 0.0005). Glyceryl trinitrate-induced vasodilation did not differ between the groups. After hormone therapy for 6 months, flow-mediated dilation was improved in women with premature ovarian failure, increasing by more than 2-fold (7.41 +/- 3.86%; P < 0.005 compared with pretreatment) and reaching normal values (P not significant compared with control women). Glyceryl trinitrate-induced vasodilation did not change after treatment in women with premature ovarian failure. Young women with premature ovarian failure have significant vascular endothelial dysfunction. Early onset of endothelial dysfunction associated with sex steroid deficiency may contribute to the increased risk of cardiovascular disease and mortality in young women with premature ovarian failure. Hormone therapy restores endothelial function within 6 months of treatment.
Kalantaridou
Sophia N
SN
Division of Reproductive Endocrinology, Department of Obstetrics and Gynecology, University Hospital, University of Ioannina Medical School, 45500 Ioannina, Greece. sophia_kalantaridou@hotmail.com
Naka
Katerina K
KK
Papanikolaou
Evangelos
E
Kazakos
Nicolaos
N
Kravariti
Maria
M
Calis
Karim A
KA
Paraskevaidis
Evangelos A
EA
Sideris
Demetrios A
DA
Tsatsoulis
Agathocles
A
Chrousos
George P
GP
Michalis
Lampros K
LK
D000328:Adult; D001916:Brachial Artery / Q000000981:diagnostic imaging / Q000187:drug effects / Q000503:physiopathology; D015331:Cohort Studies; D003250:Constriction; D004730:Endothelium, Vascular / Q000503:physiopathology*; D015914:Estrogen Replacement Therapy; D005260:Female; D006225:Hand / Q000098:blood supply; D006801:Humans; D006940:Hyperemia / Q000209:etiology / Q000503:physiopathology; D005996:Nitroglycerin / Q000494:pharmacology; D016649:Primary Ovarian Insufficiency / Q000188:drug therapy* / Q000503:physiopathology*; D012039:Regional Blood Flow; D014463:Ultrasonography; D014664:Vasodilation; D014665:Vasodilator Agents / Q000494:pharmacology
D014665:Vasodilator Agents; D005996:Nitroglycerin