Maternal pregnancy-induced hypertension increases the subsequent risk of transient tachypnea of the newborn: A nationwide population-based cohort study

Objective

To determine the association between pregnancy-induced hypertension (PIH) and transient tachypnea of the newborn (TTN) and to identify the predictive risk factors.

CircSTAM inhibits migration and invasion of trophoblast cells by regulating miR-148a-5p/PTEN axis

BackgroundThe mechanisms underlying the pathogenesis of preeclampsia (PE) remains unclear. Exploring the molecular players in PE progression can provide insights into targeted therapy.MethodsThe expression levels of circSTAM in placental chorionic tissues of PE patients and normal pregnant women were compared by RT-qPCR. CircSTAM was knocked down by small interfering RNA to investigate its role in migration, invasion and epithelial-mesenchymal transformation (EMT) of trophoblast HTR-8/SVneo cells. The downstream target of circSTAM was predicted using online bioinformatics resources, and their molecular interaction was examined by luciferase reporter assay.ResultsCircSTAM was upregulated in PE placenta tissues in comparison to normal placental tissues. CircSTAM knockdown significantly enhanced cellular invasion, migration, as well as EMT. Mir-148a-5p was identified as a target of circSTAM to regulate cell migration and invasion. Mir-148a-5p negatively regulated PTEN expression in trophoblast HTR-8 /SVneo cells.ConclusionIn summary, circSTAM upregulation in PE trophoblasts promoted the invasion, migration and EMT. CircSTAM may modulate trophoblast phenotype by impinging on mir-148a-5p/PTEN axis. These data provided novel insights into the pathogenesis of PE.     

影响子痫前期围产儿结局的多因素分析

目的 探讨影响子痫前期围产儿结局的因素.方法 采用单因素和多因素Logistic回归对448例子痫前期患者的围产儿结局进行分析.结果 448例子痫前期发生围产儿不良结局者共94例(21.0%),其中围产儿死亡41例(9.2%).对孕妇的58项变量行单因素分析显示,影响围产儿结局的因素有:发病孕周、分娩孕周、自觉症状、抽搐、尿蛋白、水肿、收缩压、舒张压、白细胞计数、中性粒细胞计数、24 h尿蛋白定量、血浆白蛋白、乳酸脱氢酶(LDH)、肌酐、产检次数、血压升高孕周和水肿孕周等17项变量(P＜0.05);Logistic逐步回归筛选出的多因素依次为:分娩孕周(OR 0.583, 95%CI:0.367～0.926),自觉症状(OR 9.315,95%CI:1.500～57.833)和尿蛋白(OR 3.394,95%CI:1.226～9.397).结论 加强围产期保健,延长分娩孕周,可以减少子痫前期患者围产儿不良结局的发生.     

lncRNA GHET1通过Wnt/β-catenin信号通路对子痫前期滋养层细胞生物学行为的影响

目的：探讨子痫前期（PE）患者胎盘组织中长链非编码RNA胃癌高表达转录本1(lncRNA GHET1)的表达及其对滋养层细胞增殖、细胞周期进展和侵袭能力的影响,并阐明其作用机制。方法：30名孕产妇分为正常孕产妇组（正常组） 15例和PE孕产妇组（PE组） 15例,HE染色观察2组研究对象胎盘组织病理形态表现。体外培养滋养层HTR-8细胞,转染过表达lncRNA GHET1及对照序列质粒,并将滋养层细胞分为对照组（常规培养）、 GHET1组（转染过表达lncRNA GHET1质粒）和阴性对照组（转染阴性对照序列质粒）。实时荧光定量PCR (RT-qPCR)法检测2组研究对象胎盘组织和各组HTR-8细胞中lncRNA GHET1 mRNA表达水平,CCK-8法检测各组HTR-8细胞增殖率,流式细胞术检测各组不同细胞周期HTR-8细胞百分率,Transwell小室实验检测各组HTR-8细胞侵袭能力,Western blotting法检测各组HTR-8细胞中细胞性骨髓细胞瘤病病毒癌基因（c-Myc）、细胞周期素D1 (cyclinD1)、上皮细胞-间充质转化（EMT）相关蛋白E-钙黏蛋白（E-...     

妊娠期脂代谢异常与子痫前期发生的相关性研究

目的分析妊娠期脂代谢异常与子痫前期发生的关系。方法回顾性选取2019年1月至2020年1月于新疆医科大学第一附属医院产检并分娩的53例子痫前期产妇作为观察组,并选取同期医院产检并分娩的53例正常产妇作为对照组。记录两组产妇妊娠早、中、晚期的脂代谢指标,分析其与子痫前期发生的关系。结果两组早、中、晚期的甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)水平比较,差异具有统计学意义(P<0.001);进一步两两比较发现,两组晚期TG、HDL-C、LDL-C分别与两组早期及中期比较,差异具有统计学意义(P<0.001),两组中期TC与观察组早期及对照组晚期比较,差异具有统计学意义(P<0.001),但观察组中期与晚期TC及对照组早期与中期TC比较,差异无统计学意义(P>0.05)。经Logistic回归分析结果显示,不同妊娠期脂代谢水平与子痫前期的发生有关,妊娠早、中、晚期TG、TC、LDL-C升高及HDL-C降低可能是子痫前期发生的风险因子(P<0.05);绘制受试者工作特征(ROC)曲线结果显示,妊娠早、中...     

Pregnancy induced TMA in severe preeclampsia results from complement-mediated thromboinflammation

Preeclampsia is a multifactorial vascular disease unique to human pregnancy. While genetic and antiangiogenic factors are important contributors to preeclampsia susceptibility, recent studies have shown that dysregulation and/or over-activation of the complement system has an integral role in disease etiology. Furthermore, the role of the coagulation cascade may be underappreciated in the development of the disease. Traditionally, for research purposes, the pool of preeclampsia cases has been divided into non-severe and severe disease depending on the onset and severity of the symptoms. However, of particular interest are a small but important minority of cases that present with symptoms likening to those of hemolysis, elevated liver enzymes and low platelets syndrome, atypical hemolytic uremic syndrome, or thrombotic thrombocytopenic purpura, all thrombotic microangiopathy (TMA) diseases, with the hallmark mechanisms of endothelial dysfunction and aberrant activation of complement and coagulation cascades. We therefore propose a third class, severe TMA-like preeclampsia to be included in the categorization of preeclampsia patients. Identifying these patients would target research, diagnostic differentiation, and novel treatment options to the subclass of patients with life-threatening disease that are most likely to benefit from next-generation drug development.     

正常妊娠与重度子痫前期孕妇血常规参数的孕期变化对比

目的:比较重度子痫前期孕妇与正常妊娠孕妇在不同孕期下血常规参数的变化并分析其临床意义。方法:选择重度子痫前期孕妇100例为观察组,正常妊娠孕妇100例为对照组,对两组孕妇从妊娠12周起每隔4周进行血常规检查,比较两组的参数变化。结果:观察组与对照组的白细胞计数(WBC)、中性粒细胞比例(N)、淋巴细胞比例(L)在不同孕周间变化不明显,差异没有统计学意义(P>0.05)。相同孕周下两组WBC、N、L的差异没有统计学意义(P>0.05)。对照组的红细胞计数(RBC)、血红蛋白浓度(Hb)、血细胞比容(HCT)在整个妊娠过程中表现出先降低后升高的趋势。观察组RBC、Hb和HCT在不同孕周下没有表现出先降低后升高的趋势。RBC和Hb水平在孕16～35周高于对照组的同期水平,HCT水平在孕20-31周高于对照组的同期水平,差异有统计学意义(P<0.05)。观察组与对照组血小板(PLT)水平在整个妊娠过程中均表现出缓慢下降的趋势,平均血小板体积(MPV)则呈现出逐步上升的趋势。观察组PLT在孕32～39周的水平低于同期对照组的水平,MPV在孕28～35周的水平高于同期对照组的水平,差异有统计学意义(P<0.05)。结论:血常规参数在不同孕周中的变化可以大致反映孕妇的血容量、血黏度以及凝血状态的变化。有望帮助临床早期筛选出重度子痫前期孕妇,及时给予针对性的干预以减轻症状、延缓病情发展。     

子痫前期并可逆性后部白质脑病综合征分析

目的:探讨子痫前期并可逆性后部白质脑病综合征(reversible posterior leukoencephalopathy syndrome,RPLS)的临床表现、影像学特点,以便早诊断、早治疗,获得良好的预后。方法:回顾性分析57例病例报道及同仁医院发生的1例子痫前期并可逆性后部白质脑病综合征。结果:产前46例,产后9例,3例发生时间不详。58例均有高血压、蛋白尿伴头痛、视物不清、进而皮质盲。58例中30人行头颅CT检查,2l例未发现异常,7例表现为局灶性低密度改变,以双侧枕部多见,2例表现为病灶广泛、弥漫性水肿。19例行头颅MRI,5例未发现异常,12例提示后部脑白质血管源性水肿。积极治疗、及时终止妊娠视力完全恢复47例,2例视力未恢复,8例未报结局,1例入院后未及时终止妊娠19 h死于脑出血。结论:高血压、蛋白尿伴头痛、皮质盲是子痫前期伴RPLS常见的临床表现,其特点是可逆性大脑皮质性视觉障碍,MRI是诊断的首选方法;早期诊断,及时终止妊娠,合理治疗,预后良好。