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KMID : 1239920140080020220
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Nutrition Research and Practice
2014 Volume.8 No. 2 p.220 ~ p.226
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Protective effect of resveratrol on arsenic trioxide-induced nephrotoxicity in rats
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Weiqian Zhang
Yan Liu
Ming Ge
Jiang Jing
Yan Chen
Huijie Jiang
Hongxiang Yu
Ning Li
Zhigang Zhang
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Abstract
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BACKGROUD/OBEJECTIVES: Arsenic, which causes human carcinogenicity, is ubiquitous in the environment. This study was designed to evaluate modulation of arsenic induced cancer by resveratrol, a phytoalexin found in vegetal dietary sources that has antioxidant and chemopreventive properties, in arsenic trioxide (As2O3)-induced Male Wistar rats.
MATERIALS/METHODS: Adult rats received 3 mg/kg As2O3 (intravenous injection, iv.) on alternate days for 4 days. Resveratrol (8 mg/kg) was administered (iv.) 1 h before As2O3 treatment. The plasma and homogenization enzymes associated with oxidative stress of rat kidneys were measured, the kidneys were examined histologically and trace element contents were assessed.
RESULTS: Rats treated with As2O3 had significantly higher oxidative stress and kidney arsenic accumulation; however, pretreatment with resveratrol reversed these changes. In addition, prior to treatment with resveratrol resulted in lower blood urea nitrogen, creatinine and insignificant renal tubular epithelial cell necrosis. Furthermore, the presence of resveratrol preserved the selenium content (0.805 ± 0.059 μg/g) of kidneys in rats treated with As2O3. However, resveratrol had no effect on zinc level in the kidney relative to As2O3-treated groups.
CONCLUSIONS: Our data show that supplementation with resveratrol alleviated nephrotoxicity by improving antioxidant capacity and arsenic efflux. These findings suggest that resveratrol has the potential to protect against kidney damage in populations exposed to arsenic.
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KEYWORD
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Arsenic, resveratrol, trace element, arsenic efflux
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