›› 2010, Vol. 30 ›› Issue (2): 105-108.

• 论文 • 上一篇    下一篇

F344/NSIc与Wistar NWN大鼠对1-溴丙烷引发毒效应的比较研究

  

  1. 1.复旦大学公共卫生学院,上海 200032;2.上海市计划生育科学研究所,上海 200032;3.广东省职业病防治院,广州 510300;4.日本名古屋大学医学部,名古屋 466-8550
  • 收稿日期:2009-09-25 出版日期:2010-02-28 发布日期:2010-02-28
  • 基金资助:
    上海市科学技术委员会项目(09140902802)

Comparative Study of 1-Bromopropane Induced Toxic Effects in Fisher 344/NSIc and Wistar NWN Rats

  1. 1.School of Public Health Fudan University, Shanghai 200032,China; 2. Shanghai Institute of Planned Parenthood Research Shanghai 200032, China; 3. Guangdong Prevention and Treatment Centre for Occupational Diseases, Guangzhou 510300, China;4. Nagoya University Graduate School of Medicine,Nagoya 466-8550,Japan.
  • Received:2009-09-25 Online:2010-02-28 Published:2010-02-28

摘要: 目的 比较研究F344/NSIc与Wistar NWN两种大鼠对1-溴丙烷(1-BP)引发的毒性发应.方法 雄性Wistar NWN和F344/NSIc大鼠各6只,吸入染毒5 030 mg/m3 1-BP 1周.取睾丸做病理切片,过碘酸希夫氏染色;切取胫后支神经,Klüver-Barrera法染色,光镜下观察.结果 睾丸组织病理学显示,1-BP染毒后第Ⅷ发育阶段的生精上皮中出现长形精子细胞滞留.胫后支神经组织病理学显示,1-BP染毒后周围神经的髓鞘出现卵圆形的缺失变性.Wistar和F344/NSIc两种大鼠均出现了上述病理学改变.结论 1-BP毒性的典型病理学改变在F344/NSIc与Wistar NWN两种大鼠中均得以重现.F344/NSIc纯种大鼠是进行1-溴丙烷毒效应基因水平的研究的适宜品系.

关键词: F344/NSIc大鼠, Wistar NWN大鼠, 1-溴丙烷, 毒性, 组织病理学

Abstract: Objective To study the 1 -Bromopropane (1-BF) induced toxic effects in F344/NSIc rat and Wistar NWN rat. Methods Six male Wistar NWN and six male F344/NSIc rats were exposed to 5030 mg/m3 1-bromopropane by inhalation for continuously 1 week. Animals were sacrificed,and the testes and posterior tibial nerve were dissected for histopathological examination, either stained by periodic acid-Schiff staining method or stained by Kliiver-Barrera staining method. Results Testicular histopathology showed that retained, enlongated sperms were found in the seminiferous epithelium (stage VIII) in both strains, which indicated the spermiation failure. Pathology of posterior tibial nerve showed that ovoid or bubble-like debris of myelin sheath was also found in both F344/NSIc and Wistar NWN rats. Conclusion The typical pathological change of 1 -BP induced toxicity can be reproduced in both F344/NSIc and Wistar NWN rats. F344/NSIc in-bred rat is the suitable strain for studying the toxic effects of 1-BP at gene level.

Key words: F344/NSIc rat, Wistar NWN rat, 1-bromopropane, Toxicity, Histopathology