摘要
目的探讨建立SD大鼠结核病模型的方法,比较不同感染途径和接种菌量在建立SD大鼠结核病动物模型的影响。方法用标准人型结核菌株H_(37)Rv 0.1、1、10 mg 3种接种菌量分别经尾静脉和腹腔途径注入SD大鼠。6周后剖杀大鼠,并比较肺、肝、脾的脏器质量指数,观察肺、肝、脾大体病变和镜下特点,肺、肝、脾的组织匀浆涂片做抗酸染色及结核菌培养。结果肺、肝、脾组织切片HE染色见不同程度增殖性结核结节。随着接种量的增加,其脏器组织病理改变越显著。肺、肝、脾组织切片抗酸染色见炎性结节及多核巨细胞内散乱排列的红色短小抗酸杆菌。接种菌量一致的情况下,尾静脉感染组肺、肝、脾组织病理改变较腹腔感染组显著,肺、肝、脾组织匀浆的结核分枝杆菌培养阳性率较腹腔感染组高(P<0.05)。结论建立SD大鼠肝、脾、肺结核杆菌感染模型,尾静脉感染途径优于腹腔感染途径。SD大鼠对结核菌敏感,可作为结核病实验的动物模型。
Objective To investigate the effect of pathway and dose of inoculation on establish- ment of experimental tuberculosis in SD rats.Methods Eighty male SD rats were randomized into eight groups.The rats in group C,group D and group E were injected intravenously with 0.1 mg, 1 mg,10mg of Mycobacterium tuberculosis standard strain H_(37)Rv,respectively.The rats of group F,group G and group H were injected intraperitoneally with 0.1mg,1mg,10mg of Mycobacterium tuberculosis standard strain H_(37)Rv,respectively.T...
出处
《中国防痨杂志》
CAS
2008年第2期90-94,161-162+95,共8页
Chinese Journal of Antituberculosis
