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医用抛射剂HFC-134a的急性毒性研究

张伟, 柏 桦,刘 瑞,张 涛,陈宏莉,张晓迪,梁 欣,海春旭*   

  1. ( 第四军医大学军事预防医学系毒理学教研室,陕西 西安 710033 )
  • 收稿日期:2012-05-15 修回日期:2012-07-16 出版日期:2013-01-30 发布日期:2013-01-30
  • 通讯作者: 海春旭
  • 作者简介:张伟(1982- ),男,安徽桐城人,博士,研究方向:自由基生物学与医学。 Tel:029-84774882,E-mail:sunshine_lovet@ 126.com

Acute toxicity studies on medical propellant HFC-134a

ZHANG Wei,BAI Hua,LIU Rui,ZHANG Tao,CHENG Hong-li,ZHANG Xiao-di,LIANG Xin,HAI Chun-xu*   

  1. (Department of Toxiology, the Fourth Military Medical University, Xi’an 710033, Shaanxi, China)
  • Received:2012-05-15 Revised:2012-07-16 Online:2013-01-30 Published:2013-01-30
  • Contact: HAI Chun-xu,E-mail:cx-hai@fmmu. edu.cn

摘要:

目的: 研究国产医用抛射剂HFC-134a的急性毒性,为进一步扩大其在医疗上的应用提供可靠的实验安全数据。方法:将60只昆明小鼠分成5组,每组12只,雌雄各半,分设剂量为0、100、500、1 000、5 000 mg/m3,连续吸入HFC-134a气体染毒4 h,后常规饲料喂养,期间每天观察小鼠行为学改变,7 d后处死小鼠,比较染毒前后小鼠体质量变化,并行大体病理形态学检查,观察肝、肾、胰腺等脏器的变化。结果:与阴性对照组相比,染毒组小鼠体质量,行为及肝、肾、胰腺等脏器未发现异常改变。最高给药剂量(5 000 mg/m3吸入4 h)组,无动物死亡,平均体质量增至(26.3±5.8) g,无致炎、致敏和中毒反应。结论:在本实验条件下,医用抛射剂HFC-134a未发现明显的急性毒副反应,常规用药剂量安全。

关键词: 抛射剂, HFC-134a, 半数致死浓度, 急性毒性

Abstract:

OBJECTIVE: To investigate the toxicity of medical propellant HFC-134a,in order to provide scientific basis for promoting the application of HFC-134a on medicine. METHODS:60 Kunming mice were divided into 5 groups,12 mice each group,male and female in half:0,100,500,1 000,5 000 mg/m3. The acute toxicity was conducted with mice exposed for 4 hours,to observe the change of animal behavior. Then all mice were sacrificed after 7 days. The change of mice weight and the pathomorphology of liver,kidney and pancreas were observed. RESULTS:Compared with negative control group,the weight of liver,kidney and pancreas did not show any abnormality. No animal died under the maximum dose. The average weight increase was (26.3±5.8) g,and there was no irritation or toxicity found through respiratory tract contamination. CONCLUSION:There were no obvious acute toxicity and side effects on the experimental subjects. HFC-134a could be used as a medicine safely.

Key words: HFC-134a, propellant, LC50, acute toxicity