Renal function during and after a temporary complete unilateral ureter obstruction in rats.

Investigative urology Pub Date : 1981-01-01
A P Provoost, J C Molenaar
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Abstract

We studied changes in the glomerular filtration rate (GFR) and in the distribution of the renal blood flow over the left and right kidney during and after unilateral ureteral obstruction in rats. The fraction of the total renal blood flow to the obstructed kidney slowly decreased with the duration of obstruction. The fraction of the total GFR decreased at a much faster rate. After the removal of an obstruction of 7, 14, or 21 days, the kidney resumed glomerular filtration with or without an intact contralateral kidney. The degree of recovery diminished with the duration of the obstruction. We conclude that recovery of the GFR, in the case of a complete unilateral ureteral obstruction, depends upon the duration of the obstruction and not on the presence of the intact contralateral kidney.

大鼠暂时性完全性单侧输尿管梗阻期间及后的肾功能。
我们研究了大鼠单侧输尿管梗阻期间和之后肾小球滤过率(GFR)和左右肾血流量分布的变化。随着梗阻时间的延长,梗阻肾血流量占肾总血流量的比例逐渐降低。总GFR的比例以更快的速度下降。梗阻切除7、14或21天后,伴或不伴对侧肾恢复肾小球滤过。随着梗阻时间的延长,恢复程度逐渐降低。我们的结论是,在完全单侧输尿管梗阻的情况下,GFR的恢复取决于梗阻的持续时间,而不取决于对侧肾脏的完整存在。
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