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脂联素在子痫前期患者胎盘组织中的表达与其发病的关系

Study of adiponectin expression in placenta and its correlation with preeclampsia

摘要:

目的 探讨脂联素在子痫前期患者胎盘组织中的表达与其发病的关系.方法 采用免疫组化链霉菌抗生物蛋白-过氧化物连接(SP)法及RT-PCR技术,检测20例正常足月妊娠孕妇(正常妊娠组)、12例轻度子痫前期(轻度子痫前期组)及22例重度子痫前期(重度子痫前期组)患者胎盘组织中脂联素蛋白及其mRNA的表达,并分析其与子痫前期发病的关系.结果 (1)3组孕妇胎盘绒毛合体滋养细胞及细胞滋养细胞胞质内脂联素蛋白均呈阳性表达,且各组内胎盘母面及子面脂联素蛋白的表达水平相互比较,差异均无统计学意义(P>0.05).(2)重度子痫前期组胎盘组织中脂联素蛋白的表达水平(30 984±14 604)低于轻度子痫前期组(58 360±8910)及正常妊娠组(53 246±17 554),差异均有统计学意义(P<0.01).重度子痫前期组中妊娠足月者胎盘组织中脂联素蛋白的表达水平(38 890±20 386)与未足月者(29 319±8997)比较,差异无统计学意义(P>0.05);但与正常妊娠组比较,差异有统计学意义(P<0.05).(3)3组孕妇胎盘组织中均有脂联素mRNA的表达.其中重度子痫前期组胎盘组织中脂联素mRNA表达水平(1.0±0.2)低于轻度子痫前期组(2.9±0.8)及正常妊娠组(3.3±1.1),差异有统计学意义(P<0.05).结论 重度子痫前期患者胎盘组织中脂联素mRNA表达水平下降导致其蛋白表达水平也下降,提示脂联素的异常表达参与了子痫前期的发病.

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abstracts:

Objective To investigate the expression of adiponectin in placenta and its correlation with preeclampsia.Methods Placental tissues were collected from normal term pregnancies(normal pregnancy group,n=20),mild preeclampsia(mild preeclampsia group,n=12)and severe preeclampsia (severe preeclampsia group,n=22).The expression of adiponectin protein and the intensity of its mRNA in placenta were detected using immunohistochemistry and RT-PCR,respectively.Integral optical density (IOD)which represents the expression level of adiponectin protein,and the ratio of adiponectin cDNA PCR products to β-actin cDNA PCR products which represents the intensity of transcription of adiponectin mRNA in placenta were analyzed.Results (1)The expression of adiponectin protein was observed in cytoplasm of placental cytotrophoblasts and syncytiotrophoblasts among three groups.There was no significant difference in adiponectin protein expression between maternal side and fetal side of placenta in three groups(all P>0.05);(2)The expression of adiponectin protein in placenta in severe preeclampsia group(30 984 ±14 604)was significantly lower than that of mild preeclampsia group(58 360±8910,P<0.01)and of normal pregnancy group(53 246±17 554,P<0.01).There was also no significant difference in the expression of adiponeclln protein in placenta between term delivery and preterm delivery in severe preeclampsia group(38 890±20 386 vs 29 319±8997,P>0.05),however,the expression of adiponectin protein in placenta in term delivery of severe preeclampsia group was significantly lower than that ofterm delivery of normlal pregnancy group(38 890±20 386 vs 53 246±17 554,P<0.05);(3)The expression of adiponectin mRNA was detected in placental tissues among three groups also.The intensity of transcription of adiponectin in placenta in severe preeclampsia group(1.0±0.2)was markedly lower than that of mild preeclampsia group(2.9±0.8,P<0.05)and normal pregnancy group(3.3±1.1,P=0.000).Conclusion The expression of adiponectin decreases in placenta tissues of severe preeclampsia,indicating that the abnormal expression of adiponectin may be involved in the pathogenesis of preeclampsia.

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作者: 明芳 [1] 周容 [1] 程薇波 [2] 铁炜炜 [1]
期刊: 《中华妇产科杂志》2008年43卷2期 90-93页 MEDLINEISTICPKUCSCDCA
分类号: R71
栏目名称: 临床研究
DOI: 10.3321/j.issn:0529-567X.2008.02.003
发布时间: 2008-06-04
基金项目:
教育部留学回国人员科研启动基金 四川省自然科学基金
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