【摘要】 目的通过挥发性有机物(VOCs)对小鼠脑组织中递质类氨基酸含量的影响,探讨VOCs对小鼠神经系统的毒性。方法采用静式吸入染毒,小鼠亚急性暴露于挥发性有机物,设置对照、低(甲醛1.5mg/m3;VOCs20mg/m3)、中(甲醛4.5mg/m3;VOCs60mg/m3)、高浓度暴露组(甲醛13.5mg/m3;VOCs180mg/m3),染毒结束后,做脑组织常规病理,采用高效液相色谱法测定小鼠脑组织(皮质和海马)氨基酸类递质[包括兴奋性氨基酸类递质谷氨酸(Glu)、门冬氨酸(ASP);抑制性氨基酸类递质氨基丁酸(GABA)、甘氨酸(Gly)]含量。结果暴露组小鼠脑组织皮质和海马兴奋性氨基酸类递质含量随染毒浓度增加而降低,而抑制性氨基酸类递质含量随染毒浓度增加而增加。脑组织病理表现为VOCs暴露组神经元变性坏死。结论挥发性有机物引起小鼠学习记忆能力下降和麻醉作用。更多还原

【Abstract】 Objective Study adverse effects of volatile organic compounds volatile organic compounds(VOCs) on brain amino acid neurotransmitter in mice. Methods Four groups of mouse were respectively exposed to 0,low, middle and high concentration of VOCs for two hours every day for 30 days. The content of brain amino acid neurotransmitter was determined. Results The result showed that the content of Glu and ASP in brain of VOCs-exposed mouse decreased and GABA and Gly increased compared with that of control. Conclusion The memory impair in mice induced by exposing VOCs may relate to the chang of content of amino acid neurotransmitter.更多还原