RENAL EFFECTS OF RAPAMYCIN IN THE SPONTANEOUSLY HYPERTENSIVE RAT

被引:28
作者
DIJOSEPH, JF
MIHATSCH, MJ
SEHGAL, SN
机构
[1] Inflammation/Bone Metabolism Division, Wyeth-Ayerst Research, Princeton, 08543, NJ
[2] Institute of Pathology, University of Basel, Basel
关键词
RAPAMYCIN; RAT; RENAL FUNCTION; SPONTANEOUSLY HYPERTENSIVE RAT;
D O I
10.1007/BF00336467
中图分类号
R61 [外科手术学];
学科分类号
摘要
The effects of rapamycin (RAPA), administered at therapeutic doses, were investigated in the spontaneously hypertensive rat (SHR). Additionally, the reversibility of RAPA's renal effects was investigated at a supratherapeutic dose. At doses that were active in preventing heart and kidney allograft rejection in the rat (0.01-0.08 mg/kg i.v.), RAPA had no effect on kidney function or rat body weight gain. At higher doses (0.8 mg/kg), RAPA produced significant changes in kidney function parameters and caused a loss in body weight. Histopathologic changes, including necrotizing vasculopathy and tubular atrophy, were noted at therapeutic doses. The effects of RAPA on kidney function were completely reversible after a 2-week washout period, though the histopathologic changes were still evident. These studies demonstrate that RAPA does not impair kidney function at therapeutic doses when administered for 2 weeks but does appear to accelerate the naturally occurring renal lesions of the SHR.
引用
收藏
页码:83 / 88
页数:6
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