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- W3030755053 abstract "目的观察有机磷农药与氨基甲酸酯混配制剂的急性毒效应,为其中毒的防治提供依据.方法常用低毒有机磷类农药--辛硫磷和高毒氨基甲酸酯类农药--灭多威混配.家兔随机分为辛硫磷组、灭多威组和辛硫磷+灭多威组,分别经腹腔一次注入含量为40%的辛硫磷(511.0 mg/kg体重)、含量为98%的灭多威(18.5 mg/kg体重)、含量为40%的辛硫磷(258.4 mg/kg体重)与含量为98%的灭多威(9.6 mg/kg体重)混剂.注射后于不同时间点记录动物血压、坐骨神经传导速度、心电图,测定全血胆碱酯酶(ChE)和血浆对氧磷酶(PON)活力.结果3个农药染毒组家兔坐骨神经传导速度在中毒早期无明显变化,而临死前显著降低,辛硫磷+灭多威混配组为(46.4±4.2)mm/s,与染毒前自身[(53.3±4.0)mm/s]相比,差异有显著性(P=0.021).心电图检查提示,各农药染毒组动物均有心肌毒性反应.灭多威染毒组存活的2只动物血压无明显降低,而辛硫磷或辛硫磷+灭多威染毒动物的血压明显下降.灭多威染毒动物的全血ChE活力降低约20%,辛硫磷或辛硫磷+灭多威染毒动物的ChE活力显著下降,在中毒120 min时降低约80%.3个农药染毒组动物血浆PON的动态变化与染毒前比较,差异不明显.结论未见辛硫磷+灭多威混剂对家兔的急性毒性有协同或拮抗作用." @default.
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- W3030755053 date "2001-07-20" @default.
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- W3030755053 title "The toxicodynamics of phoxim plus methomyl in rabbits" @default.
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