氯胺酮在急性中毒大鼠体内的死后再分布研究
发布时间:2018-08-16 10:09
【摘要】:目的探索氯胺酮在大鼠体内的死后再分布变化规律及温度对再分布的影响。方法48只雄性SD大鼠随机分为2个实验组(室温组24只、冷藏组18只)和1个对照组(6只),实验组大鼠以氯胺酮290mg/kg灌胃, 45min后缺氧处死,分别置于室温(24℃)和冷藏(4℃)条件下,于死后不同时间(0、12、24、48h)取心血、外周血、肝、肺、肾、心肌、大脑,检测其中氯胺酮含量;对照组大鼠以生理盐水灌胃,各对应组织器官样品为空白对照。血和组织样品中加入内标物SKF_(525A)后碱化,乙酸乙酯萃取,GC/MS全扫描定性,内标法、工作曲线法气相色谱定量分析。结果室温条件下,大鼠死后48h内随着死亡时间延长,心血、肺、肝中氯胺酮的浓度呈升高趋势(P0.05),肾脏中氯胺酮的浓度先升高后下降(P0.05),外周血、心肌和脑中氯胺酮的浓度无显著性变化(P0.05)。冷藏条件下,血液及组织中氯胺酮浓度变化无显著性差异(P0.05),除心肌外,各样本浓度均低于相应时段室温条件保存的样本。结论氯胺酮在大鼠体内存在死后再分布现象。温度对大鼠死后血液及组织中氯胺酮浓度变化有较明显的影响。
[Abstract]:Aim to investigate the changes of postmortem redistribution of ketamine in rats and the effect of temperature on redistribution. Methods Forty-eight male Sprague-Dawley rats were randomly divided into two groups (24 in room temperature group and 18 in cold storage group) and 6 in control group. Rats in experimental group were given ketamine 290mg/kg and killed after hypoxia after 45min. At room temperature (24 鈩,
本文编号:2185665
[Abstract]:Aim to investigate the changes of postmortem redistribution of ketamine in rats and the effect of temperature on redistribution. Methods Forty-eight male Sprague-Dawley rats were randomly divided into two groups (24 in room temperature group and 18 in cold storage group) and 6 in control group. Rats in experimental group were given ketamine 290mg/kg and killed after hypoxia after 45min. At room temperature (24 鈩,
本文编号:2185665
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