The Prevention of Acute Renal Failure in the Rat by Long-Term Saline Loading: A Possible Role of the Renin-Angiotensin Axis

Abstract

SummarySubstitution of 1% saline for drinking water largely prevents the development of established acute renal failure in rats given glycerol intramuscularly. Control experiments indicate that this protection from acute renal failure is not due to the blood volume expansion, polyuria, polydypsia, lower urine osmolality, or other parameters studied. It is suggested that the depletion of renin, associated with chronic saline-loading, may have played a protective role, and that the renin-angiotensin axis may be a potent factor in the development of glycerol-induced acute renal failure in the rat.