維生素E對(duì)錳中毒小鼠海馬區(qū)caspase-3表達(dá)的影響
[Abstract]:Objective: to investigate the effects of vitamin E on learning and memory and caspase-3 expression in hippocampus of manganese intoxicated mice. Methods: sixty male Kunming mice were randomly divided into four groups: control group, (CG), vitamin E group, (VG), manganese poisoning group, (MG), manganese poisoning group and vitamin E group (MVG), 15 rats in each group. The model of manganese poisoning was made by intraperitoneal injection of manganese chloride. Morris water maze was used to observe the learning and memory ability of mice. The expression of caspase-3 protein was detected by immunohistochemical method. Results the escape latency of the three groups was significantly shorter than that of the MG group, and the frequency of crossing the platform in the three groups was significantly higher than that in the MG group. The expression of caspase-3 in CA1 and DG was significantly higher in MVG group than in CG group. The number of caspase-3 positive cells in MVG group was significantly lower than that in MG group. Conclusion: vitamin E intervention can reduce apoptosis of hippocampal neurons and improve learning and memory ability of mice exposed to manganese.
【作者單位】: 廣西醫(yī)科大學(xué)人體解剖學(xué)教研室;
【基金】:廣西自然科學(xué)基金(2010GXNSFA013157)
【分類號(hào)】:R965
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