子宫内膜异位症不孕女性腹腔液菌群构成及TNF-α与IL-37水平研究
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Abstract
目的探讨子宫内膜异位症(endometriosis,EMs)不孕患者腹腔液中的微生物菌群及其肿瘤坏死因子α(TNF-α)和白介素37(IL-37)水平的变化。方法采集内膜异位症不孕组(T)29例和对照组(C)19例女性的腹腔液(peritoneal fluid,PF)标本,分别进行基因组DNA提取后Ion Torrent PGM平台测序检测微生物菌群和酶联免疫吸附试验(ELISA)检测IL-37及TNF-α水平。结果 EMs不孕患者和对照组女性PF中均发现了多种菌群存在,在菌门水平上主要分为变形菌门Proteobacteria、厚壁菌门Firmicutes、拟杆菌门Bacteriodetes、放线菌门Actinobacteria、梭杆菌门Fusobacteria,其中Proteobacteria为主要菌群,占60%以上的序列,软壁菌门Tenericutes只在对照组中检出1例,各菌门在两组间差异无统计学意义(P〉0.05)。EMs不孕妇女腹腔液中TNF-a和IL-37水平分别为(75.87±8.47)pg/ml、(372.03±68.02)pg/ml,高于对照组(57.76±8.29)pg/ml和(261.37±52.78)pg/ml(P〈0.05);EMs不孕组Ⅲ-Ⅳ期TNF-a的水平为(83.47±4.73)pg/ml,显著高于Ⅰ-Ⅱ期(74.29±8.26)pg/ml(P〈0.05),IL-37的水平在二者中差异无统计学意义(P〉0.05);内膜异位症不孕组中两者存在正相关关系(r=0.569,P〈0.001),对照组中两者不存在相关关系(r=-0.247,P=0.522)。结论 EMs不孕患者和对照组女性腹腔液中存在多种菌群,EMs不孕组中TNF-a和IL-37含量增高可能在EMs不孕症的发生机制中起到重要作用。
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