凋亡相关基因Bcl-2、Caspase-3与妊娠高血压疾病

目的 探讨妊娠高血压疾病(HDCP)产妇胎盘组织凋亡相关基因Bcl-2和Castmse-3的表达及其相关性.方法 应用免疫组织化学S-P法检测5 1例轻度子痫前期(轻度组)、50例重度子痫前期(重度组)及62例正常晚期妊娠(对照组)产妇胎盘组织Bcl-2和Caspase-3的表达情况.结果 Bcl-2阳性率三组比较差异无统计学意义.Caspase-3阳性率在轻度组(53%)、重度组(64%)显著高于对照组(23%).Bcl-2与Caspase-3在HDCP产妇胎盘组织中的表达呈负相关(r=-0.199,P<0.05).结论 在HDCP产妇胎盘组织中Caspase-3表达上调、Bcl-2表达无明显变化.HDCP的发病机制可能与Caspase-3表达变化有关.

The expression of Bcl-2,Caspase-3 in placenta tissue of hypertensive disorder complicating pregnancy

Objective To investigate the expression of Bcl-2 and Caspase-3 in placenta tissue of hypertensive disorder complicating pregnancy (HDCP).Methods One hundred and one placentas with preeclampsia (including 51 mild preeclampsia and 50 severe preeclampsia respectively served as low-grade group and high-grade group) and 62 placentas of normal late pregnant women(served as control group) were analyzed for the expressions of Cnspase-3 and Bcl-2 using immunohistochemistry assay(streptavidin-biotin peroyxidase method).Results The positive expression ratio of Bcl-2 was 66% in high-grade group,75% in low-grade group and 84% in control group.There was no significant difference among the three groups (P＞0.05 ).The positive expression rates of Caspase-3 in high-grade group (64%) and low-grade group (53%)were significantly higher than that in control group (23%)(P ＜ 0.01 ).There was no significant difference between high-grade group and low-grade group (P ＞ 0.05).Negative relationship between the expression of Bcl-2 and Caspase-3 could be found with statistical significance (r=-0.199,P ＜0.05).Conclusions Higher expression of Caspose-3 maybe play an important role in the pathogenesis of HDCP.The role of Bcl-2 in HDCP needs to be studied.