ObjectiveTo explore the relationship between p53 mutation in 5-8 exons and type of epithelial ovarian cancer (EOC) pathogenesis of Han nationality women. MethodsFrom August 2011 to December 2012, 45 patients with primary EOC (Han nationality women from Sichuan Province) diagnosed surgically and pathologically were selected. Using direct DNA sequencing, we analyzed the mutations of p53 in 5-8 exons of all cases, and the EOC patients were divided into two types according dualism and the pathogenesis results. The p53 mutation of the different types in EOC patients were analyzed. ResultsThe frequency and efficiency of p53 mutation in type-ⅡEOC patients were significantly higher than that in typeⅠ(P < 0.01). And the codon 175 might be a mutational hotspot of type-ⅡEOC. The malignant degree and oviduct involved frequency of type-ⅡEOC were obviously higher than that of type-I EOC; p53 mutation frequency in high malignant patients increased significantly. Conclusionsp53 mutation plays an important role in the development of type-ⅡEOC. The codon 175 might be a mutational hotspot of type-ⅡEOC.
目的：研究细胞间粘附分子-1(ICAM-1)和基质金属蛋白酶9(MMP-9)在足月及早产分娩发动前后孕妇子宫下段肌层中的表达，探讨ICAM-1和MMP-9在足月及早产分娩中的作用。方法：用免疫组织化学SP法检测ICAM-1和MMP-9在足月及早产分娩发动前后各组孕妇子宫下段肌层中的表达。结果：足月及早产分娩发动组中ICAM-1在子宫下段肌层血管内皮细胞上的表达均显著强于分娩未发动组。MMP-9在分娩发动子宫下段间质中的表达也均显著强于分娩发动前。分娩发动后白细胞浸润间质较分娩发动前明显增加。结论：ICAM-1和MMP-9在足月及早产分娩发动中显著增加，它们在分娩发动中具有重要作用。早产发生机制与足月分娩发动相似，类似于急性炎症反应。