实验动物弓形虫感染的PCR法检测

通过自行设计引物，建立了一种检测实验动物弓形虫的PCR方法，该方法具有高度特异性和敏感性。对几种实验动物的检测表明，购自农村的教学用兔体内可能有弓形虫，应予以重视。

The Detection of TOX Infection in Laboratory A nimals by Using PCR

A polymerase chain reaction (PCR) having high specificity and sensitivity was estibilished for detecting toxoplasma gondii (TOX) in laboratory animals, according to designing primers. The results showed that TOX might exist in rabbits (3/60) useful for teaching, which came from countryside. These findings suggest that the infection of TOX might be paid more attention in the aspect of laboratory animals. Key words TOX PCR mathematical statistics that the probability distribution of measured data obeys normal distribution. By the great difference in elastic moduli between cementum and dentin it is explained that 1 why more cementum grows at the root apexes;2 the behavior of cementum must be taken into consideration when the stress analysis for teeth is carried out.