Results 1 to 10 of about 1,273 (150)
Zhongshan Daxue xuebao. Yixue kexue ban, 2002 【目的】探讨羊膜腔穿刺及脐带穿刺对高危妊娠结局的影响。【方法】对 160 例行羊膜腔穿刺及脐带穿刺的高危妊娠病例进行回 顾性分析。【结果】行产前诊断81 例,检出染色体异常 2 例,重型α或β 地中海贫血分别为 3 例及 1 例, B19 病毒感染合并胎儿畸形 1 例,均实 行了引产术,减少了严重先天缺陷儿的出生。羊水检查测定胎肺成熟度 79 例,适时终止妊娠, 减低了新生儿呼吸窘迫综合征的发生率。对羊 水过少及羊水过多试行了羊膜腔输液及放液治疗。无1 例因穿刺而发生感染、流产、早产者。【结论 ...
王蕴慧 +4 more
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Effects of different serum-free culture systems on the biological function of hUC-MSCs [PDF]
, 2023 Objective To evaluate the effects of three different serum-free culture systems on the biological function of human umbilical cord mesenchymal stem cells （hUC-MSC） cultured in vitro.
Lin Huizhu, Li Cuiping, Chen Xiaoyan, Yang Li
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Effect of prenatal exposure to passive smoking on leptin of neonatal cord blood and birth weight in a rural area of Yunnan Province [PDF]
, 2023 BackgroundPrevious studies have shown that active smoking during pregnancy can reduce the level of neonatal cord blood leptin, and thereby affect birth weight.
Fangfang WANG +6 more
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Gaoya dianqi, 2022 防弯器是嵌套于脐带缆端部的关键附件,其主要作用是防止脐带缆发生过度弯曲变形。由于海洋环境荷载和浮体的边界运动作用,脐带缆防弯器段往往承受拉弯交变载荷,在长期作用下会产生疲劳破坏。现有研究往往聚焦于脐带缆自身结构的疲劳损伤,而对于防弯器结构疲劳性能分析较少。文中考虑两者之间的滑动摩擦和几何非线性等因素,建立脐带缆防弯器段的有限元模型。进而,通过整体水动力分析获得张力载荷时程曲线。最后,基于Fe-safe疲劳寿命软件建立预测防弯器的服役寿命方法 ...
闫懋延 +5 more
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TRPC1/TRPC3 channels mediate lysophosphatidylcholine-induced apoptosis in cultured human coronary artery smooth muscles cells [PDF]
, 2016 溶血卵磷脂（lysophosphatidylcholine，lysoPC）是氧化低密度脂蛋白（oxidizedlow-densitylipoprotein，ox-LDL）的主要成分。早期的研究表明，lysoPC可诱导人冠状动脉平滑肌细胞（humancoronaryarterysmoothmusclecells，HCASMCs)凋亡，但具体机制尚不清楚。近期，我们通过细胞活力测定，流式细胞术，共聚焦显微镜及分子生物学手段对lysoPC作用的分子机制进行研究发现，lysoPC可引发细胞外钙离子内流 ...
王渊
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Hybrid UCB banks in China – public storage as ethical biocapital [PDF]
, 2019 In China, under the heading of “private-for-public” banking, hybrid UCB banking has been politically supported by the government and is based on regulation developed since the 1990s. Although hybrid UCB banking was regarded as an “ethical” alternative to
Aznar L. J. +12 more
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Zhongguo shiyan zhenduanxue, 2021 目的研究双胎脐血流监测及胎心监护监测对高危妊娠产妇的预测价值。方法选取2017年5月至2020年5月间石家庄市第六医院产科收治的80例双胎高危妊娠产妇为研究对象,按照产前产妇脐动脉血流监测结果及临产过程胎心监测结果分为四组:A组:脐动脉S/D值及胎心率均正常,42例;B组:脐动脉S/D值正常,胎心率异常,9例;C组:脐动脉S/D值异常,胎心率正常,12例;D组:胎心率、脐动脉S/D值均异常,17例,对产妇进行脐血流监测及胎心监护监测,观察记录产妇剖宫产、脐带绕颈、羊水污染、胎儿窘迫 ...
武菁菁 +4 more
doaj
Analysis of Causes of Death and Related Factors of 102 Perinatal Infants in Chongqing [PDF]
, 2019 Objective To analyze the causes of perinatal death and related factors from the perspective of forensic medicine, and to provide references for reducing perinatal mortality and guidance for forensic identification.
YANG Zhi-xi, WEI Ze-hong, ZOU Xing，et al.
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The fate of umbilical cord derived mesenchymal stem cells and their effect on local microenvironment after limbal injection [PDF]
, 2016 目的：近年来，间充质干细胞（mesenchymalstemcell，MSC）结膜下注射被用来治疗眼表化学伤，在动物实验中表现了良好的效果。但结膜下注射后MSC的命运及其对局部微环境的影响还不清楚。我们通过在大鼠角膜缘注射人脐带间充质干细胞来探究MSC在角膜缘球结膜下的存活、迁移、增殖、分化及对角膜缘微环境的影响，同时观察MSC对眼表上皮增殖及分化的影响，以及对角膜缘干细胞损伤的修复作用。 方法：采用改良的胶原酶及透明质酸酶联合消化法分离培养获得人脐带间充质干细胞，并进行流式细胞学鉴定 ...
李娟
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HUVECs Promote the Proliferation of iPS-MSCs by FAM3B [PDF]
, 2016 间充质干细胞（mesenchymalstemcells，MSCs）存在于一个血管周微环境中，在这个微环境内，内皮细胞（endothelialcells，ECs）与MSCs互相作用，调控MSCs的表型和增殖，从而在MSCs的血管生成作用和治疗应用方面起重要作用。然而，MSCs受到来源、年龄、健康等多方面的影响，不能满足大规模的使用需求。诱导多能干细胞来源的间充质干细胞（inducedpluripotentstemcell-derivedMSCs，iPS-MSCs）可能会是一个有前景的替代性干细胞来源。但是，
冷云
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