L-Histidinol attenuates Fanconi syndrome induced by ifosfamide in rats.

O A Badary
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引用次数: 19

Abstract

The effect of L-histidinol (LHL), a structural analogue of the essential amino acid L-histidine, on ifosfamide (IFO) induced nephrotoxicity was investigated in the rat. The aim of this study was to assess whether oral supplementation of LHL could attenuate Fanconi syndrome (FS) induced by IFO. Male Wistar albino rats received daily injections of IFO (50 mg/kg) for 5 days with or without oral supplementation of 0.5% LHL in the drinking water. LHL was supplemented for 3 days before IFO administration and daily thereafter. Control rats were injected with saline with or without oral LHL. The results demonstrated that IFO induces a FS characterized by wasting of glucose, electrolytes, and organic acids, along with elevated serum creatinine and urea levels and decreased creatinine clearance. IFO-induced FS was associated with significant renal nonprotein sulfhydryl depletion and lipid peroxide (malondialdehyde) accumulation. LHL strongly ameliorated the severity of renal dysfunction induced by IFO, with significant decreases in total and fractional excretions of Na(+), K(+), PO(4)(3-), and glucose. Also, LHL significantly decreased the elevated serum creatinine and urea levels and significantly increased the creatinine clearance. Moreover, the beneficial effects of LHL were associated with a significant improvement of IFO-induced nonprotein sufhydry depletion and lipid peroxide accumulation. These results demonstrate that oral supplementation of LHL can partially protect against IFO-induced FS in rats.

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组氨酸二醇减轻异环磷酰胺所致大鼠范可尼综合征。
研究了必需氨基酸l -组氨酸的结构类似物l -组氨酸醇(LHL)对异环磷酰胺(IFO)引起的大鼠肾毒性的影响。本研究的目的是评估口服补充LHL是否可以减轻IFO诱导的范可尼综合征(FS)。雄性Wistar白化大鼠每天注射IFO (50 mg/kg),连续5天,同时或不在饮用水中口服添加0.5% LHL。在IFO给药前3天补充LHL,之后每天补充。对照组大鼠分别注射含或不含口服LHL的生理盐水。结果表明,IFO诱导FS的特征是葡萄糖、电解质和有机酸的消耗,同时血清肌酐和尿素水平升高,肌酐清除率降低。ifo诱导的FS与肾脏非蛋白巯基消耗和脂质过氧化(丙二醛)积累有关。LHL可显著改善IFO所致肾功能障碍的严重程度,显著降低Na(+)、K(+)、PO(4)(3-)和葡萄糖的总排泄量和部分排泄量。同时,LHL显著降低血清肌酐和尿素水平升高,显著增加肌酐清除率。此外,LHL的有益作用与ifo诱导的非蛋白脱水和脂质过氧化积累的显著改善有关。这些结果表明,口服补充LHL对ifo诱导的大鼠FS有一定的保护作用。
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