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  • Title: The renin-angiotensin system and total body sodium and potassium in hypertensive women taking oestrogen-progestagen oral contraceptives.
    Author: McAreavey D, Cumming AM, Boddy K, Brown JJ, Fraser R, Leckie BJ, Lever AF, Morton JJ, Robertson JI, Williams ED.
    Journal: Clin Endocrinol (Oxf); 1983 Feb; 18(2):111-8. PubMed ID: 6851195.
    Abstract:
    Measurements of total body sodium and potassium, and of components of the renin-angiotensin-aldosterone system, were made in a group of women who developed hypertension while taking oestrogen-progestagen oral contraceptives. The results were compared with similar measurements made in age-matched women with essential hypertension. Total body sodium and potassium were normal in both groups. Plasma renin-substrate was significantly elevated in the women taking oral contraceptives, while concentrations of active renin were similar and normal in both groups. Thus plasma angiotensin II was significantly elevated in the pill users; overall the product of renin and renin substrate concentrations correlated significantly with angiotensin II. The rise in plasma angiotensin II in conjunction with normal total body sodium could therefore contribute to the increase in blood pressure induced by oestrogen-progestagen oral contraceptives.
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