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抗凝血灭鼠剂大隆和鼠得克的生物学效果评价

邓址, 潘凤庚   

  1. 中国军事医学科学院微生物流行病研究所
  • 出版日期:2011-11-23 发布日期:2011-11-22

THE BIOLOGICAL EVALUATION OF BRODIFACOUM AND DIFENACOUM

DENG Zhi, PAN Fenggeng   

  1. Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences
  • Online:2011-11-23 Published:2011-11-22

摘要: 大隆(brodifacoum)和鼠得克(difenacoum)是1975—1976年新发展的第二代抗凝血灭鼠剂,化学名称分别为3—(3—(对溴联苯基)—1,2,3,4—四氢化萘基)—4—羟基香豆素和3—(3—联苯基—1,2,3,4—四氢化萘基)—4羟基香豆素。这一类抗凝血灭鼠剂有2个突出的特性:(1)能杀灭抗药性鼠种,指对杀鼠灵(warfarin)产生抗药的鼠种,(2)兼有急性和慢性灭鼠剂的优点,单剂量对多种鼠类都有防制效果。这样不仅可以解决鼠类对杀鼠灵的抗药问题,而且可以节约灭鼠用粮和人力,有可能使抗凝血灭鼠剂推广用于防制野鼠。根据全国除四害规划安排,军事医学科学院微生物流行病研究所于1979年合成了这2种灭鼠剂样品,供全国新药协作组15个单位进行生物学效果评价。本文为部份试验结果。

Abstract: Biological evaluation of second generation anticoagulants, brodifacoum and difenacoum, was carried out in 1980-1981. The samples of these anticoagulants were synthesized by Institute of Microbiology and Epidemiology Academy of Military Medical Sciences.Determinations of acute ( single dose ) and chronic( 5 consecutive daily doses ) oral toxicities were performed on Rattus norvegicus, R. flavipectus, Mus musculus, R, losea, Apodemus chevrieri, Cricetus triion, Microtus brandti, Meriones unguicula-tus, Citellus dauricus and Ochotona curzonise, etc.Meriones unguiculatus and Citellus dauricus are very sensitive to brodifacoum. The values of LD50 are as low as 0.003mg/kg and 0.093mg/kg respectively. Cricetus triton and Microtus brandti are very resistant to difenacoum. The values of LD50 are as high as 112.4mg/kg and 29.96mg/kg respectively.