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  • Title: Androgens are associated with hemostatic and inflammatory factors among women at the mid-life.
    Author: Sowers MR, Jannausch M, Randolph JF, McConnell D, Little R, Lasley B, Pasternak R, Sutton-Tyrrell K, Matthews KA.
    Journal: J Clin Endocrinol Metab; 2005 Nov; 90(11):6064-71. PubMed ID: 16091487.
    Abstract:
    GOAL: The goal of this study was to relate annually measured endogenous androgens to hemostatic and inflammation markers in women longitudinally. METHODS: A total of 3302 participants from the Study of Women's Health Across the Nation, aged 42-52 yr at baseline and self-identified as African-American (28%), Caucasian (47%), Chinese (8%), Hispanic (8%), or Japanese (9%) were evaluated for testosterone (T), dehydroepiandrosterone sulfate, and SHBG at four time points in 5 yr. Cardiovascular disease markers were fibrinogen, activated factor VII-c, C-reactive protein (hsC-RP), and the fibrolytic factors, plasminogen activator inhibitor type 1 (PAI-1), and tissue plasminogen activator [t(PA)]. RESULTS: T and free androgen index (FAI) were associated highly positively with PAI-1 and t(PA), and FAI was associated highly and positively with hsC-RP. Lower SHBG levels, associated with greater bioavailable T, were associated significantly with higher levels of PAI-1, t(PA), hsC-RP, and factor VII-c. SHBG was lower in Chinese and Japanese women markedly, resulting in FAI values that, on average, were higher among Chinese and Japanese women compared with African-American, Caucasian, and Hispanic women. IMPLICATIONS: There were strong, positive associations of androgens with fibrolytic and inflammation markers, even after considering age, body size, smoking, and race/ethnicity. It is important to study androgens, their precursors, and their carrier protein as part of the risk profile for heart disease in mid-aged women.
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