To study the effect of ischemic preconditioning(IP) on the expression of HSP 70 mRNA in postischemic spinal cord of rabbits, the spinal cord ischemic model was established by inflating the balloon of a 4F Swan Ganz catheter positioned in the abdominal aorta of the rabbits. The rabbits were divided into sham operated group, ischemic group and IP group. The expression of HSP 70 mRNA in postischemic spinal cord was observed by using the method of RT PCR at 4 hours, 2 days and 5 days after spinal cord ischemia respectively. No expression of HSPs 70 mRNA was found in sham operative group. Compared with ischemic group,the expression of HSP 70 mRNA in spinal cord of IP group was strengthened( P

To study the invasiveness of endometrial cells of endometriosis. 49 specimens of either normal endometrials or that from endometriosis were cultured, and the invasiveness of them different cells was studied by Transwell Col Insert cell culture plate. The results showed that the invasiveness of stromal cells was stronger than that of epithelial cells; the invasiveness of cells from patients with endometriosis was stronger than that of the controls. The results suggested that stromal and epithelial cell of the endometrium may play different roles in the pathogenesis of endometriosis; the character of the endometrium from patients with endometriosis was different from that of women without endometriosis.