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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Atrial natriuretic peptide, plasma renin activity, and aldosterone in women on estrogen therapy and with premenstrual syndrome.

Estrogens are known to increase the renin-angiotensin-aldosterone system and to produce fluid retention, while atrial natriuretic peptide ( ANP) induces an increase of the urinary output and tends to return the fluid balance to normal. The aim of this study was to test whether the levels of ANP were decreased during chronic estrogen and progestin administration, thereby possibly decreasing the amount of fluid excreted. The authors also studied women with premenstrual syndrome (PMS), because of the associated fluid retention often described with this syndrome. Levels of ANP, plasma renin activity (PRA), and aldosterone were determined in premenopausal women in the early follicular phase (EFP) and on low-dose oral contraceptives (OC), in postmenopausal patients with and without estrogen replacement therapy (ERT), and in women with PMS associated with fluid retention. The concentrations of ANP and PRA were enhanced in the women on OC, but those of aldosterone were unchanged. No differences were observed in the women on ERT or with PMS. It is concluded that the levels of PRA and ANP are affected by estrogen or progesterone therapy or the combination of the two and this response is dose dependent or additive. Furthermore, ANP and PRA do not seem to play a direct role in PMS.[1]


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