Influences of gonadotropin releasing hormone agonist treatment on nitric oxide synthase expression in women with endometriosis and infertility

In: Chin J Obstet Gynecol · 2005 · vol. 40(06) , pp. 383–387 · doi:10.3760/j.issn:0529-567x.2005.06.008 · W3029433060
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Abstract

目的 探讨一氧化氮合酶 (NOS) 在子宫内膜异位症(内异症)不孕患者在位子宫内膜(在位内膜)中的表达及促性腺激素释放激素激动剂 (GnRH-a) 对其表达的影响.方法采用免疫组化方法及蛋白印迹方法,对30例Ⅲ~Ⅳ期内异症不孕患者(内异症组) 及19例有正常生育史的宫颈原位癌患者(对照组)的在位内膜进行内皮型NOS (eNOS)及诱生型NOS (iNOS)表达的定位及半定量检测,内异症组中18例行GnRH-a治疗(治疗组);采用电化学发光法,同时测定患者血清雌二醇及孕酮水平.结果 eNOS在子宫内膜的腺上皮、腔上皮及血管内皮细胞中均有表达;iNOS仅在子宫内膜的腺上皮和间质细胞中微弱表达.eNOS在增生期早、中、晚期和分泌期早、中、晚期在位内膜中的相对表达水平,内异症组分别为0.30±0.04,0.40±0.03,0.49±0.03,0.43±0.04,0.55±0.04和0.48±0.03,治疗组分别为0.22±0.03,0.37±0.03,0.45±0.04,0.35±0.05,0.50±0.03和0.41±0.00,对照组分别为0.21±0.03,0.33±0.03,0.45±0.04,0.40±0.03,0.47±0.05和0.41±0.03.在整个月经周期中,内异症组患者在位内膜eNOS相对表达水平持续性高于对照组患者,但仅在增生期早、中期及分泌期中、晚期两组比较,差异有统计学意义(P<0.05);与内异症组比较,治疗组在位内膜eNOS相对表达水平均有所下降,但仅在增生期早期及分泌期早、中期比较,差异有统计学意义(P<0.05).3组子宫内膜中均未检出iNOS的表达.血清雌二醇或孕酮水平与子宫内膜eNOS表达水平均呈正相关(P<0.01).结论 eNOS在内异症患者在位内膜中的高表达,可能与其发病及其所致的不孕有关,GnRH-a治疗可降低内异症患者在位内膜eNOS的表达。

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endometriosisinfertility

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