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妊娠期糖尿病孕妇足月妊娠胎盘中一氧化氮合成酶的表达及一氧化氮含量 被引量:5

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摘要 目的探讨妊娠期糖尿病(gestationaldiabetesmellitus,GDM)患者足月妊娠胎盘组织中内皮型一氧化氮合成酶(endothelialnitricoxidesynthase,eNOS)、诱导型一氧化氮合成酶(induciblenitricoxidesynthase,iNOS)的表达及一氧化氮(nitricoxide,NO)含量变化。方法选择2011年10月10日至2012年5月15日在上海交通大学医学院附属第一人民医院行剖宫产分娩的单胎妊娠GDM孕妇为研究对象,分为饮食运动治疗组30例和胰岛素治疗组30例,血糖均控制在正常范围。选择同期分娩的无任何妊娠合并症及并发症的30例孕妇为对照组。采用免疫组织化学染色检测胎盘组织中eNOS和iNOS的表达,酶联免疫吸附试验检测eNOS和iNOS活性以及NO含量。统计学方法采用单因素方差分析、LSD-t检验、非参数秩和检验和非参数两个独立样本的秩和检验。结果(1)eNOS在胎盘血管内皮细胞的细胞质和细胞膜中表达。对照组、GDM饮食运动治疗组与GDM胰岛素治疗组3组间的免疫组织化学染色评分[(0.51±0.04)、(0.52±0.04)和(0.50±0.03)分,F=1.248]和活性[(19.42±0.04)、(19.45±0.06)与(19.43±0.07)U/mgprot,F=1.603]比较,差异均无统计学意义(P〉0.05)。(2)iNOS在胎盘滋养细胞的细胞质和细胞膜中表达。对照组、GDM饮食运动治疗组与GDM胰岛素治疗组3组间的免疫组织化学染色评分r(O.45±0.23)、(1.16±0.75)与(3.03±0.84)分,H=62.178]和活性[(10.92±1.09)、(13.86±0.40)与(14.38±0.44)U/ragprot,H=54.144]比较,差异均有统计学意义(P〈0.001),GDM组均高于对照组,GDM胰岛素治疗组高于饮食运动治疗组(P〈0.001)。(3)对照组、GDM饮食运动治疗组与GDM胰岛素治疗组3组间NO含量[(39.07±10.03)、(80.31±4.81)与(78.53±7.53)μmol/L,H=47.901]比较,差异有统计学意义(P〈0.001),GDM组均高于对照组(P〈0.05),但GDM2组之间比较,差异无统计学意义(P〉0.001)。结论在血糖控制理想的GDM患者胎盘组织中,eNOS表达和活性无明显变化,iNOS表达和活性均增加,NO含量的增加与iNOS表达和活性增加可能有关。
出处 《中华围产医学杂志》 CAS 北大核心 2013年第7期440-443,共4页 Chinese Journal of Perinatal Medicine
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参考文献13

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