ISSN:
1432-1041
Keywords:
alpha-atrial natriuretic peptide
;
xipamide
;
plasma renin activity
;
plasma aldosterone
;
urinary kallikrein excretion
;
healthy volunteers
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Medicine
Notes:
Summary We have studied the effect of xipamide on plasma α-atrial natriuretic peptide and the reninaldosterone-kallikrein system in twelve healthy men, using a double-blind cross-over design. After a run-in period on placebo for 1 week the subjects were treated with either placebo (n=6) or xipamide 20 mg once daily (n=6) for 16 weeks and were then switched to the alternative medication for another 16 weeks. The plasma concentration of α-atrial natriuretic peptide fell after 1 week of xipamide administration and increased during prolonged xipamide administration but remained suppressed. The changes in plasma α-ANP observed after 1 week of xipamide were negatively correlated with the changes in haematocrit and haemoglobin. Plasma renin activity (PRA), aldosterone concentration (PAC), and urinary excretion of aldosterone and kallikrein increased after 1 week of xipamide administration, levelled off during the second and fourth weeks, but remained elevated during further prolonged xipamide administration for 16 weeks. The xipamide-induced changes in PRA and PAC were positively correlated with the changes in the haematocrit and haemoglobin. Our data suggest that the changes in plasma renin, aldosterone, and α-atrial natriuretic peptide during xipamide administration may be related to diuretic-induced volume contraction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00609181
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