早期不明原因复发性流产患者绒毛组织Tim-3的表达和血清sTim-3的水平的研究
发布时间:2019-01-07 08:51
【摘要】:目的:通过研究早期不明原因复发性流产的孕妇绒毛组织Tim-3的表达情况以及血清可溶型Tim-3(sTim-3)的水平,探讨Tim-3与复发性流产的相关性。方法:1.病例资料选取2016年2-8月在山西医科大学第一医院就诊的早期不明原因复发性流产患者,此次证实为难免流产、不全流产或稽留流产,共23例作为实验组,平均年龄31±4岁。入组标准:自然流产次数≥2次,孕周≤10周;排除标准:夫妇染色体异常;妇科B超、宫腔镜等提示生殖器官畸形;甲功、性激素六项、糖耐量试验等内分泌指标异常;病毒等感染性疾病;抗磷脂抗体等自身抗体阳性;孕早期用药、放射性、化学毒物等接触史;丈夫精液异常。选取同期正常妊娠自愿终止的早孕者20例(既往至少生育一次,无不良妊娠史,此次无流产迹象)为对照组,平均年龄29±5岁。2.实验方法收集正常妊娠组和复发性流产组绒毛组织后,立即用生理盐水冲洗,去掉残存血液及蜕膜组织,用10%福尔马林固定,常规石蜡包埋后制成5μm厚切片。采用免疫组织化学法及软件分析Tim-3在两组绒毛组织中的平均灰度值及阳性细胞表达率,确定Tim-3在绒毛组织中的表达情况;收集两组孕妇外周血,并置于含促凝剂的黄色管中,37℃放置30分钟后离心,留取上清,置于-80℃冰箱中冷冻保存,使用时统一解冻。采用ELISA法测定sTim-3在两组血清中的表达水平。3.统计学方法采用软件SPSS 20.0对数据统计学分析,计量资料均采用均数±标准差表示,样本均数采用两样本t检验。α=0.05为检验水准。结果:1.Tim-3主要表达于绒毛组织的滋养层细胞,绒毛间质基本不表达。每张切片随机选取5个视野,测量其灰度值及阳性细胞百分率,再计算出每组绒毛组织中Tim-3的平均表达情况。复发性流产组Tim-3表达的平均灰度值为179.79±9.37,平均阳性细胞表达率为89.88±12.29,表达强度明显高于正常妊娠组(平均灰度值为192.10±11.78,平均阳性细胞表达率为63.60±31.88),差异有统计学意义(P0.05)。2.复发性流产组血清中sTim-3的水平为138.64±39.66 pg/ml,正常妊娠组为101.32±29.94pg/ml,前者明显高于后者,差异有统计学意义(P0.05)。结论:Tim-3与sTim-3可能与早期胚胎发育的调节过程有关,与早期不明原因复发性流产的发生有一定的相关性。该研究为早期URSA的发病机制提供了新的思路,并可能成为不明原因复发性流产免疫治疗的靶向目标。
[Abstract]:Objective: to study the expression of Tim-3 and the level of serum soluble Tim-3 (sTim-3) in early unexplained recurrent abortion of pregnant women, and to explore the correlation between Tim-3 and recurrent abortion. Methods: 1. Cases were selected from February to August 2016 in the first Hospital of Shanxi Medical University. 23 cases were confirmed as inevitable abortion, incomplete abortion or missed abortion, with an average age of 31 卤4 years. Admission criteria: spontaneous abortion times 鈮,
本文编号:2403470
[Abstract]:Objective: to study the expression of Tim-3 and the level of serum soluble Tim-3 (sTim-3) in early unexplained recurrent abortion of pregnant women, and to explore the correlation between Tim-3 and recurrent abortion. Methods: 1. Cases were selected from February to August 2016 in the first Hospital of Shanxi Medical University. 23 cases were confirmed as inevitable abortion, incomplete abortion or missed abortion, with an average age of 31 卤4 years. Admission criteria: spontaneous abortion times 鈮,
本文编号:2403470
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