Bagheri A, Kumar P, Kamath A, Rao P
Bratisl Lek Listy. 2017;118(5):258-264. doi: 10.4149/BLL_2017_051.
Recurrent miscarriage (RM) defined as 2 or more spontaneous miscarriage before 20 weeks of gestation, affects at least 1 % of couples trying to conceive. In over 50 % of cases, the cause of the loss of pregnancy remains unexplained. Reduced expression of Angiogenic factors such as: vascular endothelial growth factor (VEGF-A) and VEGF-C has been linked with spontaneous miscarriage, likely due to defective foetal and placental angiogenesis.
To investigate the relationships between serum level of VEGF-A and VEGF-C with clinical characteristic in women with URM and compare to pregnant and healthy women.
A case-control study, which was conducted between 90 non-pregnant women with history of RM, age-matched with 70 non-pregnant women without history of recurrent abortion with at least one child (controls) and 70 pregnant women without history of recurrent abortion with at least one child (controls). Those with unexplained RM were eligible. Demographic and Anthropometric data were retrieved by pre-test questionnaire and serum level of VEGF-A and VEGF-C measured by ELISA kit.
This study showeds that maternal levels of VEGF-A and VEGF-C were distinctly lower in RSA (189.87±88.1 vs 238.8±99.6) compared to healthy (239.1±99.7 vs 275.5±133.08) and pregnant (301.5±76.4 vs 402.5±128.6) women as control groups. Univariate analysis demonstrated that clinical characteristic factors were significantly associated with concentration of VEGF-A and VEGF-C in cases and controls.
Our findings suggest that these molecules could be used as potential predictive markers of miscarriage in these women presenting with URM (Tab. 4, Fig. 5, Ref. 40).
复发性流产(RM)定义为妊娠20周前发生2次或更多次自然流产,影响至少1%的备孕夫妇。在超过50%的病例中,妊娠丢失的原因仍不明。血管生成因子如血管内皮生长因子(VEGF - A)和VEGF - C表达降低与自然流产有关,可能是由于胎儿和胎盘血管生成缺陷。
研究不明原因复发性流产(URM)女性血清VEGF - A和VEGF - C水平与临床特征之间的关系,并与孕妇和健康女性进行比较。
一项病例对照研究,研究对象为90名有复发性流产史的未孕女性,年龄与70名无复发性流产史且至少育有一个孩子的未孕女性(对照组)以及70名无复发性流产史且至少育有一个孩子的孕妇(对照组)相匹配。符合条件的为不明原因复发性流产患者。通过预测试问卷收集人口统计学和人体测量数据,并使用ELISA试剂盒测量血清VEGF - A和VEGF - C水平。
本研究表明,与作为对照组的健康女性(239.1±99.7 vs 275.5±133.08)和孕妇(301.5±76.4 vs 402.5±128.6)相比,复发性流产伴自身免疫异常(RSA)患者母体VEGF - A和VEGF - C水平明显较低(189.87±88.1 vs 238.8±99.6)。单因素分析表明,临床特征因素与病例组和对照组中VEGF - A和VEGF - C的浓度显著相关。
我们的研究结果表明,这些分子可作为这些不明原因复发性流产女性流产的潜在预测标志物(表4,图5,参考文献40)。