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中国临床药理学与治疗学 ›› 2007, Vol. 12 ›› Issue (5): 575-581.

• 基础研究 • 上一篇    下一篇

宾赛克嗪对有机磷农药所致循环衰竭的救治作用

刘念1, 曹洁玮1,2, 王汝欢3, 龙超良1, 汪海1   

  1. 1军事医学科学院毒物药物研究所,北京 100850;
    2武警河北总队医院内二科,石家庄 050081,河北;
    3北京恩华医药研究院,北京 100039
  • 收稿日期:2006-06-09 修回日期:2007-02-25 发布日期:2020-10-29
  • 通讯作者: 汪海,男,研究员,博士生导师,主要从事心血管药理和新药研究。Tel:010-66932651 E-mail:wh@nic.bmi.ac.cn
  • 作者简介:刘念,女,硕士研究生,主要从事心血管药理学研究。Tel:010-66931557 E-mail:liunian629@sohu.com。曹洁玮,女,硕士研究生,主要从事心血管药理学研究。Tel:010-66931557 E-mail:cjw780524@sina.com

Therapeutic effects of benthiacthiactzine against circulatory failure induced by organophosphate insecticides and hemorrhagic shock in rats

LIU Nian1, CAO Jie-wei1,2, WANG Ru-huan3, LONG Chao-liang1, WANG Hai1   

  1. 1Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing 100850, China;
    2Department of Cardiology, Hebei Provincial Corps Hospital, Chinese People's Armed Police Force, Shijiazhuang 050081, Hebei, China;
    3Beijing Enhua Academy of Medicine, Beijing 100039, China
  • Received:2006-06-09 Revised:2007-02-25 Published:2020-10-29

摘要: 目的: 评价宾赛克嗪对胆碱酯酶抑制剂敌敌畏和失血所致循环衰竭的救治效果。方法: 健康Wistar ♂大鼠42 只,随机分为6 组:敌敌畏染毒后采用宾赛克嗪0.5、1.0、2.0mg/kg 救治组;失血性休克后生理盐水救治组及宾赛克嗪0.5、2.5mg/kg 救治组,每组7 只。敌敌畏染毒组采用累积染毒,直至平均动脉压(MBP)降至45 mm Hg(1 mm Hg=0.133 kPa)为循环衰竭标准。失血性休克模型组从股动脉快速放血,15 min 内使MBP 降至休克水平(35 ~ 40 mm Hg),维持此血压水平30 ~ 60 min 即造成失血性休克模型,然后救治。观察休克过程及救治后血流动力学指标及心电图变化。结果: 与染毒前相比,敌敌畏所致大鼠循环衰竭时,SBP、DBP、MBP、心率以及反映心脏收缩功能的左室内压上升段最大变化速率(+dp/dtmax)、心肌纤维缩短速度(Vpm)和+dp/d tmax IP(等容收缩期压力),反映心脏舒张功能的左室内压下降段最大变化速率(- dpd/tmax)、左室舒张压(LVDP)和IP 功能均显著降低(P<0.01)。心电图显示:心率缓慢,有心律失常。敌敌畏导致的大鼠循环衰竭,在宾赛克嗪0.5mg/kg救治后3 min、宾赛克嗪1.0mg/kg 救治后2 min、宾赛克嗪2.0mg/kg 救治后1 min,各个指标均脱离循环衰竭水平,在观察点60 min 内血压维持较平稳。心电图基本在救治后3 min 恢复正常。单纯给予宾赛克嗪对失血性休克大鼠的血压有一定的改善作用。宾赛克嗪0.5mg/kg 较2.5mg/kg 起效时间慢,但维持时间长,且对SBP 及DBP 均有改善作用;宾赛克嗪2.5mg/kg 起效时间快,但作用时间短暂,对SBP 改善作用明显,对DBP 改善作用较小。结论: 新型抗毒剂宾赛克嗪对有机磷农药引起的循环衰竭治疗效果更好,是一种良好的新型抗毒剂。

关键词: 宾赛克嗪, 胆碱酯酶抑制剂, 有机磷农药, 循环衰竭, 失血性休克

Abstract: AIM: To investigate the therapeutic effects of benthiactzine against circulatory failure induced by organophosphate insecticides DDV and hemorrhagic shock in rats. METHODS: 42 healthy Wistar male rats, weighing 320 ±20 g, were divided into six groups randomly :DDV poisoning rats treated with benthiactzine 0.5, 1. 0 or 2.0 mg/kg, and hemorrhagic shock rats treated with saline or benthiactzine 0.5, 2.5 mg/kg (n= 7). Rats were treated with organophosphate insecticides (i.p. ) to induce circulatory failure shock in which the mean blood pressure (MBP) dropped to 45 mm Hg as an index, then treated with benthiactzine (i.m). The others were exsanguinated untill MBP decreased to 35 -40 mm Hg within 15 min, and models of hemorrhagic shock were established by maintaining MBP at that level for 30 -60min, then those rats were treated with saline or benthiactzine (i.m). RESULTS: In circulatory failure rats inducedby DDV, SBP, DBP, MBP, HR, LVDP, IP, + dp/dtmax , -dp/d tmax, Vpm and +dp/d tmax IP dramatically decreased (P <0.01) compared with pre-poisoning,and some kinds of arrhythmia were observed. Benthiactzine affected each parameter in 30 s to 3 min. CONCLUSION: Treated with benthiactzine, DDV poisoning rats can get away from circulatory failure in a short time. Benthiactzine can be a favourable medicine against circulatory failure induced by organophosphate insecticides to save time for other clinic treatments.

Key words: benthiactzine, cholinesterase inhibitor, organophosphate insecticides, circulatory failure, hemorrhagic shock

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