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绝经期前后女性循环内皮祖细胞数量和功能差异的研究 被引量:1

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摘要 目的探讨绝经期前后女性循环内皮祖细胞(EPCs)数量,功能的差异、女性月经周期的影响及雌二醇的体外动员作用。方法选择绝经期前后健康女性各10名,绝经期前女性在月经周期内3个性激素变化阶段(卵泡初期、排卵前期、黄体中期)分别采血,绝经期后女性1次采血。用流式细胞仪记数循环CD34+/CD133+/KDR+的EPCs数量,放射免疫法测定雌二醇水平;经体外培养7 d,计数EPCs,并观察其黏附能力;分别通过跨膜迁移实验和增殖实验观察不同浓度雌二醇的影响。结果绝经期前组循环EPCs数量明显高于绝经期后组(<0.01),月经周期内排卵前期、黄体中期明显高于卵泡初期(<0.05),与雌二醇呈正相关(=0.635,<0.01)。经体外培养测定EPCs功能,绝经期前组跨膜迁移能力和增殖能力均明显高于绝经期后组(<0.05)。不同浓度雌二醇的体外动员下,较高浓度的雌二醇(≥1×10-9mol/L)能显著增强EPCs的跨膜迁移能力和增殖能力(均<0.05)。结论绝经期前后女性循环EPCs数量和功能存在差异;雌二醇对EPCs的动员有重要作用。
机构地区 宁波市第一医院
出处 《现代实用医学》 2013年第4期466-468,F0004,共4页 Modern Practical Medicine
基金 宁波市医学科技计划项目(No.2009A04)
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