Key result
Bilateral nephrectomy or propranolol decreased renin but increased pseudorenin levels in rats, while converting enzyme inhibitor SQ 20881 increased renin without changing pseudorenin.
Why the study?
How do alterations in the renin-angiotensin system via nephrectomy, propranolol, or converting enzyme inhibitors affect plasma levels of renin and pseudorenin in rats?
How do alterations in the renin-angiotensin system via nephrectomy, propranolol, or converting enzyme inhibitors affect plasma levels of renin and pseudorenin in rats?
Alterations in the renin-angiotensin system via nephrectomy or propranolol inversely affect renin and pseudorenin levels in rats.
Answers are grounded in this paper and cite their sources.
Caution against extrapolating rat pseudorenin changes to patients; leaves open mechanistic questions in human RAS disorders.
Plasma levels of renin and pseudorenin were measured at various times in control rats, and after bilateral nephrec-tomy, treatment with propranolol, or the converting enzyme inhibitor (CEI) SQ 20881. After nephrectomy or propranolol, renin levels decreased but pseudorenin levels increased. Following treatment with CEI, renin levels rose in a nonoperated animal and remained very low in a nephrecto-mized animal. Pseudorenin levels did not change appreciably after CEI in either animal.
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Eaton et al. (1977) studied Alteration in the renin-angiotensin system. Bilateral nephrectomy, propranolol, or converting enzyme inhibitor SQ 20881 vs. Control rats was evaluated on Plasma levels of renin and pseudorenin. Bilateral nephrectomy or propranolol decreased renin but increased pseudorenin levels in rats, while converting enzyme inhibitor SQ 20881 increased renin without changing pseudorenin.
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