血小板生长因子与子痫前期发病的关系

目的 探讨血小板生长因子(PDGF)在子痫前期(Preeclampsia,PRE)发病中的作用,进一步阐明PRE发病机制.方法 研究对象为13例正常晚孕妇女,20例重度PRE晚孕患者.运用酶联免疫吸附法测定两组研究对象血清PDGF-BB含量;原位杂交技术检测两组胎盘蜕膜血管PDGF-B mRNA的表达.PDGF-BB血清含量及PDGF-B mRNA蜕膜血管表达强度灰度值间行直线相关分析.结果 PDGF-BB含量在正常晚孕组为(39.6l±18.20)pg/ml,在重度PRE晚孕组为(83.54±34.52)pg/ml,两组比较差异有显著性(P＜0.001);重度PRE组胎盘蜕膜血管PDGF-B mRNA大量表达,强度明显高于对照组(P＜0.001).PDGF-BB血清含量及蜕膜血管表达强度灰度值呈明显负相关(r=-0.603,P＜0.001).结论 PRE患者血清PDGF-BB明显升高,蜕膜血管PDGF-B mRNA表达增强,说明PDGF可能参与了PRE胎盘血管病变,参与PRE病情发生发展.血清PDGF-BB水平升高可能与局部病变的蜕膜血管有关.

Role of platelet-derived growth factor in the pathogenesis of preeclampsia

OBJECTIVE: To study the role of platelet-derived growth factor (PDGF) in the pathogenesis of preeclampsia (PRE). METHODS: Thirteen normal and 20 PRE late-pregnancy women were enrolled in this study. The serum PDGF-BB levels were measured with enzyme-linked immunosorbent assay, and the expression of PDGF-B mRNA in the decidual blood vessel was determined using in situ hybridization. RESULTS: PDGF-BB levels in PRE group was significantly higher than that in normal pregnant women (83.54 -/+34.52 vs 39.61-/+18.20, P<0.001), and the expression of PDGF-B mRNA in decidual blood vessel was also significantly higher in PRE group (P<0.001), showing a positive correlation between serum PDGF and PDGF-B mRNA expression (r=0.603, P<0.001). CONCLUSION: PDGF is associated with the pathology of decidual blood vessel. Elevated serum PDGF levels and PDGF-B mRNA expression in the decidual blood vessel may play an important role in the pathogenesis of PRE.