Title : Effect of captopril on the release of the components of the renin-angiotensin system into plasma and lymph.

Pub. Date : 1992 Jan

PMID : 1317225






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1 Effect of captopril on the release of the components of the renin-angiotensin system into plasma and lymph. Captopril renin Canis lupus familiaris
2 UNLABELLED: The effects of captopril on the intrarenal renin-angiotensin system were assessed from measurements in arterial plasma, renal venous plasma, and renal lymph from salt-depleted dogs. Captopril renin Canis lupus familiaris
3 Although captopril increased the secretion of active renin into renal venous plasma by six-fold, the secretion of total renin was unchanged because of a reciprocal fall in the secretion of inactive renin. Captopril renin Canis lupus familiaris
4 IN CONCLUSION: (1) all components of the renin-angiotensin system are represented in the renal interstitium, as reflected in lymph; (2) Ang II concentrations in renal lymph in vivo approximate arterial levels; (3) increased secretion of active renin into plasma during intrarenal infusion of captopril into denervated kidneys is due predominantly to renin activation; and (4) renal vascular resistance may depend on the concentration of Ang II in the renal interstitium. Captopril renin Canis lupus familiaris