to evaluate the relative contribution of endogenous vasoactive compounds to maintenance of increased renal vascular resistance in neonatal obstructive nephropathy , cardiac output and renal blood flow were measured using radioactive microspheres in 25 +/- 3 day-old guinea pigs subjected to unilateral partial ureteral constriction within the first two days of life .
C0022646
renal
C0149939
obstructive