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1.
目的 探讨ELABELA(ELA)对妊娠滋养细胞(Bewo细胞)侵袭行为的影响及其可能的作用机制。方法 用siRNA-ELA转染处于对数生长期的Bewo细胞,分为siRNA-ELA转染组,阴性对照组(细胞转染无意义序列)及空白组,细胞转染后于倒置显微镜下观察转染效率,采用实时荧光定量聚合酶链反应(qRT-PCR)检测转染后各组细胞中ELA mRNA表达并明确沉默效率。划痕实验测定各组细胞迁移能力,Transwell实验测定各组细胞的迁移、侵袭能力。蛋白质免疫印迹法检测各组细胞p-AKT、MMP9蛋白表达水平。结果 si-ELA组的ELA表达量明显低于si-NC组及空白组(P<0.001),且si-NC组与空白组差异无统计学意义(P>0.05);siRNA-ELA组细胞的迁移及侵袭能力均明显低于空白组(P<0.01;P<0.01);siRNA-ELA组p-AKT蛋白及MMP9蛋白表达水平明显低于空白组(p-AKT P<0.01;MMP9 P<0.001)。结论 敲低ELA可抑制滋养细胞的侵袭及迁移能力,其机制可能与AKT信号通路有关。  相似文献   
2.
目的 探究孕早期孕妇外周血中lnc-C17orf64-1∶1的表达及其在子痫前期发病中的预测价值。方法 选择2018年9月至2019年9月于上海交通大学医学院附属国际和平妇幼保健院就诊分娩的孕妇,留取其孕早期(11~13周)外周血样本。根据妊娠结局是否为子痫前期分组:正常孕妇29例为对照组,子痫前期孕妇20例为子痫前期组。收集孕产妇相关临床资料,采用实时荧光定量PCR(qRT-PCR)检测孕早期外周血中lnc-C17orf64-1∶1的表达水平(ΔCT值),分析其与病情相关临床指标的相关性,并通过受试者工作特征(receiver operating characteristi, ROC)曲线分析其预测价值。结果 子痫前期组孕妇孕早期外周血中lnc-C17orf64-1∶1表达升高(ΔCT值降低);ROC曲线分析发现孕早期外周血lnc-C17orf64-1∶1预测子痫前期发病的曲线下面积(area under the curve, AUC)为0.9172(95%置信区间:0.8445-0.9899),敏感度80.00%,特异度86.21%,最大约登指数0.6621,最佳截断点13.71(ΔCT值),阳性预测值80.00%,阴性预测值86.21%;Spearman相关性分析发现孕早期外周血lnc-C17orf64-1∶1的ΔCT值与收缩压及舒张压均呈负相关。结论 孕早期外周血lnc-C17orf64-1∶1高表达与子痫前期密切相关,且对子痫前期早期诊断有一定预测价值。  相似文献   
3.
目的:探讨血清S100钙结合蛋白(S100b)、TIMP金属钛酶抑制剂(TIMP1)、纤连蛋白1(FN1)联合检验在子痫前期诊断中的价值。方法:选取2020年1月~2020年12月间某院收治的妊娠期子痫前期患者80例为试验组,选取同期健康孕中期妊娠妇女80例为对照组,检测两组血清S100b、TIMP1、FN1水平。采用受试者工作特征曲线(ROC)的曲线下面积(AUC)分析S100b、TIMP1、FN1在子痫前期诊断中的价值。结果:试验组血清S100b、TIMP1、FN1水平均显著高于对照组,差异均具有统计学意义(P<0.05)。S100b的AUC为(0.86±0.08),以93.27ng/L为阳性临界值,其灵敏度为89%、特异度为88%;TIMP1的AUC为(0.88±0.07),以80.95ng/L为阳性临界值,其灵敏度为91%、特异度为89%;FN1的AUC为(0.82±0.05),以35.93ng/L为临界值,其灵敏度为96%、特异度为63%。血清S100b、TIMP1、FN1联合检测在子痫前期诊断中,其灵敏度为93.75%(75/80)、特异度为88.75%(71/80)、准确度为91.25%(146/160)。结论:血清S100b、TIMP1、FN1联合检验在子痫前期诊断中具有良好效能。  相似文献   
4.
阿司匹林是一种具有抗炎和抗血小板特性的环氧化酶抑制剂。近年来低剂量阿司匹林(low-dose aspirin,LDA)在产科及辅助生殖中的应用范围不断拓展,尤其是用于预防子痫前期已被多个国家指南推荐。LDA主要通过抑制环氧酶活性发挥抗血小板聚集作用,可有效改善胎盘浅着床引起的胎盘灌注不良,在胎儿生长受限、早产、产科抗磷脂综合征、辅助生殖等领域的适用指征也逐渐拓宽。本文就LDA在产科及辅助生殖应用的指南推荐意见和研究进展进行综述。  相似文献   
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目的应用组织二尖瓣环位移(TMAD)技术评价重度子痫前期(SPE)病人左心房功能,探讨其临床应用价值。方法选取SPE病人46例(SPE组)和正常妊娠(NP)孕妇43名(NP组),分别行常规及全容积超声心动图检查。采用全容积成像技术获取标化左房膨胀指数(LAEI)、左房被动排空分数(LAPEF)和左房主动排空分数(LAAEF);采用TMAD技术获取相应参数:左心房充盈期位移(TMAD-D)、被动射血期位移(TMAD-P)及左心房收缩期位移(TMAD-S)。结果与NP组相比,SPE组TMAD-D、TMAD-P和TMAD-S降低,差异均有统计学意义(P<0.001);与NP组相比,SPE组标化LAEI、LAPEF和LAAEF均降低,差异均有统计学意义(P<0.001);SPE组TMAD-D、TMAD-P和TMAD-S与相应的标化LAEI、LAPEF、LAAEF均呈正相关(r值分别为0.645、0.576、0.572,P<0.001);TMAD-D、TMAD-P和TMAD-S诊断左房功能受损的曲线下面积(AUC)分别为0.868、0.832、0.759;标化LAEI、LAPEF、LAAEF的AUC分别为0.880、0.840、0.835;全容积成像参数的AUC较TMAD相应参数的AUC略增大,但差异均无统计学意义(P>0.05)。结论TMAD技术可简便、快速、准确地评价SPE病人左房时相功能,可作为临床评价左房功能的新方法。  相似文献   
8.
Though cerebrovascular complications of pregnancy remain relatively rare, they represent a potentially devastating event that necessitates prompt identification and treatment. Eighteen percent of strokes occurring in young women are linked to pregnancy. They occur mostly in the third trimester or during the post-partum period. Their biggest risk factors are hypertension, preeclampsia/eclampsia and migraine. Cerebrovascular events occurring during this period may involve specific pathophysiological processes that include embolic phenomena or endothelial dysfunction, but can also have common etiologies that are simply favored by the context of pregnancy. Thus, posterior encephalopathy and vasoconstriction cerebral syndrome are relatively frequently involved in cerebrovascular complications of pregnancy. Other very specific causes like amniotic fluid embolism or postpartum cardiomyopathy can also be responsible for such events. The management of stroke during pregnancy must be multidisciplinary and include a neurovascular expertise. Some conditions can lead to a long-life follow-up and modify the management of a future pregnancy.  相似文献   
9.
BackgroundThromboelastography (TEG) provides global assessment of hemostatic function and has been recommended to monitor potential coagulopathies during pregnancy in which hypercoagulable state is favored. In present study, we established the reference intervals (RIs) of the TEG parameters (R, K, MA, and α‐angle) with Chinese pregnant women of third trimester. In addition, we examined the diagnostic efficacies of the TEG parameters in the patients diagnosed of gestational hypertension (GH), gestational diabetes mellitus (GDM), or preeclampsia (PE).MethodsWith specified including and excluding criteria, non‐pregnant controls, healthy pregnant women, and pregnant women with GH, GDM, or PE had their venous blood drawn at Beijing Obstetrics and Gynecology Hospital, followed by TEG tests performed in the clinical laboratory.ResultsThe RIs determined with the healthy pregnant women (in third trimester) for R, K, MA, and α‐angle were 4.0‐7.7, 1.2‐3.2, 51.9‐70.1, and 41.4‐74.4, respectively. When compared with the healthy pregnancy group, the K value was significantly decreased in GH patients but increased in PE patients; MA was significantly lower in the PE group. In the receiver operating characteristic curve (ROC) analyses, K value was able to efficiently distinguish normal pregnancy from the GH patients, with an AUC of 0.86 which is far better than those of R (AUC = 0.57) and MA (AUC = 0.56). For the PE patients, the AUC of MA (0.69) was significantly greater than that of R (0.50).ConclusionsThromboelastography may provide more accurate experimental basis for monitoring coagulation functions especially in pregnant women with complications of GH and PE.  相似文献   
10.
ObjectiveTo investigate the plasma fibrinogen gamma‐chain concentration in preeclampsia patients and explore its value in preeclampsia prediction and auxiliary diagnosis.MethodsFollow‐up of pregnant women who regularly attended perinatal care at two hospitals in China was performed, and clinical data and plasma samples were collected at each examination until delivery. The gamma‐chain concentration was detected by Western blotting, and Quantity One Software was used for gamma‐chain grayscale value measurements.ResultsForty‐two patients with preeclampsia and 42 control patients completed the follow‐up. In the control group, the gamma‐chain concentration at 32 weeks of gestation was higher than that at 20 weeks of gestation, but the difference was not statistically significant (p > 0.05). In the experimental group, the gamma‐chain concentration at preeclampsia diagnosis was significantly higher than that at 20 weeks of gestation (p < 0.05). Compared with the control group, the gamma‐chain concentration was higher at 20 weeks of gestation in the experimental group, but the difference was not statistically significant. However, at 32 weeks of gestation and at the time of diagnosis, the gamma‐chain concentration in the experimental group was significantly higher than that in the control group (p < 0.05). At 32 weeks of gestation and at the time of diagnosis, the AUCs from ROC curve analysis of plasma fibrinogen gamma‐chain concentrations were 0.64 and 0.71, respectively.ConclusionPlasma fibrinogen synthesis and degradation were disrupted in preeclampsia patients before and after diagnosis, and gamma‐chain concentration was significantly increased. Plasma fibrinogen gamma chain may be of some value in preeclampsia prediction and auxiliary diagnosis.  相似文献   
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