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• W181664847 abstract "Objective To explore arsenic-induced oxidative stress and the protective efficacy of α-lipoic acid and vitamin c.Methods 50 male SD rats were randomly divided into 5 groups.Ten rats(the control group)were exposed to deionized water for 6 weeks, and the others were alone exposed to sodium arsenite (50 mg/L water)for 6 weeks, at the same time, three group rats were administered intragastrically(I.g.)with α-lipoic acid 10 mg· kg-1· d-1 and vitamin C 25 mg· kg-1· d-1 either alone or in combination.At the end of experiment, blood was drawn from abdominal aorta, and then the blood, brain and liver of rats were used for biochemical assays, including blood glutathione(GSH), δ-aminolevulinic acid dehydratase(δ-ALAD), reactive oxygen species(ROS)and oxidized glutathione(GSSG)level.At the same time, the super oxide dismutase(SOD)activity, glutathione peroxidase(GSH-Px)activity, catalase(CAT)activity, ATPase activity of brain and liver were determined.The caspase activity of brain were also determined.Results There were a significant increase in ROS level(P＜0.05), but a significant decrease in δ-ALAD activity(P＜0.01)in the chronic arsenic toxicity model group compared with the control group.These alterations were marginally restored by co-administration of vitamin C and α-lipoic acid individually, while significant recovery was observed in the animals supplemented with both the antioxidants together with arsenite in rat(P＜0.05).At the same time, there was a significant increase in the ROS and TBARS level of the brain and liver(P＜0.05), and caspase activity of the brain(P＜0.05), while there was a significant decrease in antioxidant enzymes and ATPase activity on arsenite exposure in rats(P＜0.05).These alterations were also marginally restored by co-administration of vitamin C and α-lipoic acid individually, while significant recovery was observed in the animals supplemented with both the antioxidants together with arsenite in rat(P＜0.05).Conclusions Arsenite-induced oxidative stress can be significantly protected by co-administration of o-lipoic acid and vitamin C individually, but the best effects could be observed with combined administration of two antioxidants during arsenite exposure in animals.The dietary intervention of or supplementation with natural dietary nutrients is possible to prevent the effects of arsenic in populations of risk.Key words: Arsenicals; Thioctic acid; Ascorbic acid; Oxidative stress" @default.
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• W181664847 date "2010-12-01" @default.
• W181664847 modified "2023-09-22" @default.
• W181664847 title "[Effects of α-lipoic acid and vitamin C on oxidative stress in rat exposed to chronic arsenic toxicity]." @default.
• W181664847 doi "https://doi.org/10.3760/cma.j.issn.1001-9391.2010.12.003" @default.
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