Results 51 to 60 of about 1,473 (163)
Ultrasound in Obstetrics &Gynecology, Volume 63, Issue 5, Page 605-612, May 2024.ABSTRACT Objective Antenatal growth assessment using ultrasound aims to identify small fetuses that are at higher risk of perinatal morbidity and mortality. This study explored whether the association between suboptimal fetal growth and adverse perinatal outcome varies with different definitions of fetal growth restriction (FGR) and different weight ...
M. Mascherpa +6 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2014 胎盘早剥（placental abruptionb）是正常位置的胎盘于妊娠20周后或分娩期,在胎儿娩出前,部分或全部从子宫壁剥离[1]。胎盘早剥病情急,发展迅速,围产儿病死率高。探讨胎盘早剥发病诱因、临床表现、诊断方式及处理对策,进一步探讨不同程度的胎盘早剥与妊娠结局的关系,为临床诊疗提供参考,降低母儿的病死率。1临床资料1.1一般资料选择我院2008年06月 ...
蔡明, 林艳茹, 滕红
doaj
Research progress on early placental development in cattle(牛胎盘早期发育研究进展)
浙江大学学报. 农业与生命科学版Pregnancy loss is a key issue limiting the sustainable development of cattle breeding, with about 50% occurring in the early stages of embryonic development, while abnormal placental development is a significant cause of early pregnancy loss.
LIN Haiwei(林海威) +5 more
doaj +1 more source
Studies of Hyperaccumulation Mechanism of Eucalyptus grandis×E. urophylla to Manganese and Arabidopsis Transporter’s Functions on Metal Transportation and Signaling [PDF]
, 2015 重金属污染已经成为世界性问题，严重威胁人体健康，已引起广泛的关注。植物修复技术作为一种经济、环境友好的土壤污染治理途径，也引起越来越多人的兴趣。只有寻找到更多合适的超富集植物，并且深入研究重金属的耐受和吸收、转运途径，才能有效地控制重金属对作物的污染或者更好发挥超富集植物的修复潜能。 本论文通过矿区筛选，发现了新的诱导型锰超富集植物-巨尾桉。该植物可以在叶片富集大量锰元素。通过实验室水培和ICP-MS联用技术研究其对锰的耐受性、在各组织中的分异 ...
谢清清
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Performance of machine‐learning approach for prediction of pre‐eclampsia in a middle‐income country
Ultrasound in Obstetrics &Gynecology, Volume 63, Issue 3, Page 350-357, March 2024.ABSTRACT Objective Pre‐eclampsia (PE) is a serious complication of pregnancy associated with maternal and fetal morbidity and mortality. As current prediction models have limitations and may not be applicable in resource‐limited settings, we aimed to develop a machine‐learning (ML) algorithm that offers a potential solution for developing accurate and ...
J. Torres‐Torres +10 more
wiley +1 more source
The establishment of Elispot-based neutralization assay for HCMV and its application in epidemiological study [PDF]
, 2013 人巨细胞病毒（humancytomegalovirus，HCMV）的感染在全球普遍存在。HCMV感染一般以潜伏状态存在，当机体免疫力低下时，则易发生再激发感染，引起严重甚至威胁生命的感染性疾病。在自然感染过程中，HCMV可感染包括淋巴细胞，上皮细胞以及内皮细胞在内的多种类型的细胞。HCMV体外培养体系的宿主细胞主要是上皮细胞及成纤维细胞。传统的基于细胞病变的TCID50以及空斑形成减少实验检测样本中和滴度的方法，存在周期长，操作繁杂，主观因素影响大的缺点，不适合大样本量的临床研究 ...
赵利利
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Prenatal diagnosis and postnatal outcome of Type‐III vasa previa: systematic review of literature
Ultrasound in Obstetrics &Gynecology, Volume 63, Issue 1, Page 24-33, January 2024.ABSTRACT Objective Type‐III vasa previa (VP) is a rare form of VP, not necessarily associated with other placental or vascular anomalies, in which aberrant vessels run from the placenta to the amniotic membranes, near the internal cervical os, before returning to the placenta. Early diagnosis of Type‐III VP is important but technically challenging. The
M. Pozzoni +7 more
wiley +1 more source
Huli yanjiu, 2003 目的 :通过对胎膜早破及未破膜的孕妇阴道菌群及产后胎盘胎膜之间的比较 ,分析胎膜早破的原因。方法 :产前采集阴道分泌物做细菌培养、药敏试验 ,产后采集胎盘和胎膜组织做病理学检查。结果 :40例胎膜早破产妇和 40例未破膜两组比较 ,阴道菌群及产后的胎盘胎膜病理诊断有显著差异。结论 :胎膜早破与G-菌感染及胎盘胎膜炎性改变有一定的因果关系。
郝秀卿, 张幸花
doaj
Zhongguo shiyan zhenduanxue, 2022 1临床资料孕妇，28岁，G1P0，无遗传病史，唐筛低风险，未行无创DNA或羊水穿刺。孕32周时于当地医院孕检发现胎儿肠管扩张，于孕34周时就诊于吉林大学第二医院行超声见：胎儿下腹部肠管扩张明显，最宽处宽约4.5cm（图1），肠管蠕动不明显。胎儿腹腔积液厚约1.4cm。羊水指数：30.2cm。胎盘完全覆盖宫颈内口。超声提示：胎儿肠道梗阻或闭锁可能，胎儿腹腔积液，羊水过多，完全性前置胎盘。建议患者终止妊娠，患者拒绝终止妊娠。孕35周时孕妇因完全性前置胎盘伴出血、羊水过多行剖宫产(1临床资料孕妇，28岁 ...
刘云飞 +4 more
doaj
, 2000 介绍了内分泌扰乱化学品 (EDCs)的作用机制及其对野生动物影响的研究进展。内分泌化学品可能与性激素受体、甲状腺素受体和其他受体 (如芳烃受体 )结合 ,也可能通过影响动物体内激素的代谢而对动物的生长发育起调控作用。各实验室的重复实验不支持环境雌激素之间存在协同作用的结论。已报道过的人体和野生动物生殖缺陷中具有充分证据的暴露 -效应关系的实例为数不多。尽管野生鱼类变性是英国河流中的一个普遍现象 ,但进一步的实验证明污水处理场出水中的天然和合成雌激素足以引起鱼类的变性反应 ...
邱东茹,吴振斌,贺锋
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