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  • Title: Response of plasma aldosterone to orthostatism during follicular and luteal phases of the normal menstrual cycle.
    Author: Ruilope LM, García-Robles R, Mancheño E, Rodríguez FJ, Barrientos A, Torres J, Radicio JL, Oriol-Bosch A.
    Journal: Rev Esp Fisiol; 1977 Dec; 33(4):341-5. PubMed ID: 594494.
    Abstract:
    The responses of plasma aldosterone (A) and plasma renin activity (PRA) to orthostatism have been evaluated in 47 women during the follicular and/or luteal phase of the menstrual cycle. Three postmenopausal women and 51 men were also studied for control. Fourteen cycling women and 11 men were studied on a low sodium diet (20 mEq/day) while the rest of the subjects were on normal sodium intake. In addition, 18 women (including those postmenopausal) and 17 men were studied after intravenous administration of 20 mg frusemide. The response of A to orthostatism in women during luteal phase on normal sodium diet with or without frusemide was much greater than in men or women during follicular phase (p less than 0.01) or menopuase (p less than 0.05). However, no differences between groups could be observed in A response while on a low sodium diet. PRA response was similar during follicular of luteal phase fo the cycle as well as in men either on low or normal sodium intake with or without frusemide.
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