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目的:为探讨金属离子络合及VitB6代谢障碍在二硫化碳(CS2)神经毒作用中的作用;方法:测定CS2染毒大鼠脑组织中微量元素铜的含量,并用VitB6及谷胱甘肽(GSH)进行干预。以SD雄性大鼠为中毒模型,检测不同浓度(0,300,600,1200,2400mg/m3)染毒两个月后脑组织铜的含量;同时在高浓度(2400mg/m3)组给予两种干预药物:GSH(100mg/kg,腹腔注射,一次/日),VitB6(灌胃,一次/日,0.4mg/日),观察对大鼠行为及酶活性的影响。结果:CS2染毒大鼠脑组织铜含量无明显改变;GSH,VitB6对CS2致运动协调能力障碍无明显改善,对反映学习记忆能力的指标(步下法)有改善作用;GSH对Na+-K+-ATP酶活性有升高作用。结论:CS2所致中枢神经系统与外周神经系统毒性在机制上可能有所不同。
OBJECTIVE: To investigate the effect of metal ion complexation and VitB6 metabolic disorder on neurotoxicity of carbon disulfide (CS2) in rats. Methods: The contents of trace copper in brain tissue of CS2-treated rats were determined. VitB6 and glutathione ) Intervention. The SD rats were used as poisoning model to detect the content of copper in brain tissue of rats exposed to different concentrations (0, 300, 600, 1200 and 2400 mg / m3) for two months. Two interventions were given in high concentration (2400 mg / m3) Drugs: GSH (100mg / kg, intraperitoneal injection, once a day), VitB6 (intragastric administration, once a day, 0.4mg / day) were used to observe the effect on the behavior and enzyme activity in rats. Results: There was no significant change in the content of copper in brain tissue of CS2-treated rats. GSH and VitB6 had no effect on CS2-induced motor coordination disorder, which could improve the learning and memory ability (GSK) -ATP enzyme activity has increased role. Conclusion: The mechanism of CS2-induced central nervous system and peripheral nervous system toxicity may be different.