所谓无菌动物,就是指不能检出任何活的微生物和寄生虫的动物。从微生物学的观点看,通常实验动物的体内和体外带有寄生虫,体内还常带有细菌和病毒,而且还都难于排除某些潜在的传染病。此外,普通实验动物的血清中含有抗体。所以用并存普通动物进行医学科学研究,将会存在各种各样的干扰,实验结果往往不确切。使用无菌动物作实验就可以克服普通实验所存在缺点,使实验结果正确可靠。
该方法使用一种免疫的无菌动物。
保存一小瓶细胞,该细胞可在无菌条件下再生,这要比保存小动物容易的多,对吗?
Much easier to keep a flask of cells under very sterile, very reproducible conditions than it is to keep a small animal, right?
即使是在绝对无菌的环境中,动物饮食含有高胆固醇时,动脉也出现“堵塞”或“垢状”现象。
Even animals that are kept in an absolutely sterile environment can suffer from "clogging" or "furring" of the arteries when their food contains high levels of cholesterol.
Much easier to keep a flask of cells under very sterile, very reproducible conditions than it is to keep a small animal, right?
保存一小瓶细胞,该细胞可在无菌条件下再生,这要比保存小动物容易的多
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