Water immersion-induced endocrine alterations in women with EPH gestosis.
In 12 healthy pregnant women, 14 women with mild or moderate late pregnancy gestosis (EPH) and in 12 non-pregnant women, the influence of head out water immersion (WI) on mean blood pressure (MAP), the renin-aldosterone system, vasopressin ( AVP) and atrial natriuretic hormone (ANF) was examined. WI induced a prompt fall in MAP in all examined groups. This decrease of MAP was maximal after 1 h WI, showing a tendency to rise later on in pregnant women. Simultaneously a decrease of plasma renin activity (PRA), plasma aldosterone, AVP and an increase of ANF was noted. The WI induced endocrine reaction pattern was qualitatively similar, but quantitatively different in the examined groups. In contrast to the response of non-pregnant women, healthy pregnant women and women with EPH gestosis showed a significantly smaller increase in ANF secretion induced by WI. No correlation was found between PRA, plasma AVP, aldosterone and ANF respectively. In addition changes in PRA, aldosterone, AVP and ANF did not correlate with WI-induced changes in MAP. From data obtained in this paper it seems, that WI-induced MAP changes are not related significantly to changes of the above mentioned hormonal factors.[1]References
- Water immersion-induced endocrine alterations in women with EPH gestosis. Doniec-Ulman, I., Kokot, F., Wambach, G., Drab, M. Clin. Nephrol. (1987) [Pubmed]
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