阿维菌素在急性中毒死家兔体内的再分布研究

目的考察阿维菌素在急性中毒死家兔体内的再分布。方法按最小致死量一次性灌胃250mg/kg阿维菌素,HPLC法检测家兔死后0h、24h、48h和72h中阿维菌素的含量。结果给家兔一次性灌胃250mg/kg阿维菌素的临床死亡时间为120.6±9.2min(±s,n=10);测定了阿维菌素的致死血浓度和致死组织浓度;家兔死后0h~72h心血和各主要脏器组织中阿维菌素含量存在体内再分布现象;确定肝、肾、肺为最佳组织检材。结论阿维菌素在急性中毒死家兔体内的再分布数据,对法医办理此类案件具有重要参考价值。

Postmortem Redistribution of Avermectin in Acute Poisoning death of Rabitts

Objective To investigate the postmortem redistribution of Avermectin in acute poisoning death of rabitts. Methods According to the minimum lethal dose intragastric of 250mg/kg avermectin, the avermectin contents in the heart blood and major organs and tissues of the rabitts after death of 0h~72h were assayed by HPLC method. Results Determination of clinical death time was 120.6±9.2min(x±s, n=10)by intragastric 250mg/kg avermectin to the rabitts; Lethal blood concentrations and lethal tissue concentrations of Avermectin were determined; Presence of postmortem redistribution of avermectin contents in the heart blood and major organs and tissues of the rabitts after death of 0h~72h were proved; Determination of the liver, kidney and lung were the best tissue samples for toxicological anaysis. Conclusion The data of Avermectin postmortem redistribution in the rabbits have important reference value for the forensic management of such cases.