Results 1 to 10 of about 1,516 (157)
Zhongshan Daxue xuebao. Yixue kexue ban, 2007 【目的】观察人脐血间质干细胞增殖能力、细胞表面分子标志及多向分化潜能。【方法】从人脐血中分离出单个核贴壁细胞并进行体外培养。将细胞以单克隆抗体标记后用流式细胞仪进行检测。向培养细胞中加入成骨、成软骨和成脂肪诱导剂，检测其多向分化能力。【结果】脐血间质干细胞原代培养时间为7周。流式细胞分析显示这些细胞CD29、CD13、CD44等表达为阳性，但是它们不表达造血干细胞表面标志物。加入成骨诱导剂会导致细胞碱性磷酸酶的表达。采用微球培养法并加入软骨诱导剂对细胞进行诱导，用阿尔新蓝染色显示有蛋白多糖表达 ...
王晶, 李志忠, 徐茅, 迟作华
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人中期胚胎、新生儿脐血及成人骨髓间质干细胞基本生物学特性的比较 [PDF]
Zhongshan Daxue xuebao. Yixue kexue ban, 2004 【目的】比较人中期胚胎脐血、新生儿脐血以及成人骨髓3种来源的间质干细胞(MSC)生物学特性,为临床治疗选择细胞来源提供实验依据。【方法】采用L-DMEM培养液分离培养3种来源MSC,流式细胞仪进行细胞表型、细胞周期、细胞凋亡分析,成骨、成脂诱导液分别诱导细胞分化,携带绿色荧光蛋白报告基因的重组腺病毒转染MSC,荧光显微镜和流式细胞仪检测3种细胞表达外源基因特性。【结果】3种来源标本中均可分离培养出MSC,但新生儿脐血中阳性获得率最低,为29.17%(7/24);3者细胞形态、表面抗原表达 ...
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孕中期甲胎蛋白和游离β人绒毛促性腺激素及脐动脉血流变化与不良妊娠结局的关系 [PDF]
Zhongshan Daxue xuebao. Yixue kexue ban, 2010 【目的】 探讨孕中期母血清标志物及脐动脉血流用于预测不良妊娠结局的临床价值?【方法】 采用时间分辨荧光分析技术,对876例孕14 ~ 21周的孕妇进行孕中期甲胎蛋白(AFP)?游离β人绒毛促性腺激素(free-β-hCG)检测;对其中536例孕妇在孕14 ~ 28周使用超声多普勒检测其脐动脉血流,并追踪其妊娠结局?用卡方检验比较孕妇血清标志物升高者(342例)?脐动脉血流异常者(82例)?血清标志物升高且脐动脉异常者(40例)之间不良妊娠结局的发生率的差别?【结果 ...
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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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Comparative analysis of 2‐year outcomes in GRIT and TRUFFLE trials
Ultrasound in Obstetrics &Gynecology, Volume 55, Issue 1, Page 68-74, January 2020., 2020 ABSTRACT Objective To explore the effect on perinatal outcome of different fetal monitoring strategies for early‐onset fetal growth restriction (FGR). Methods This was a cohort analysis of individual participant data from two European multicenter trials of fetal monitoring methods for FGR: the Growth Restriction Intervention Study (GRIT) and the Trial ...
W. Ganzevoort +164 more
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Study on the risk factors for intrauterine infection of hepatitis B virus among pregnant women [PDF]
, 2017 目的探讨厦门市孕妇乙型肝炎病毒(hepatitis B virus,HBV)感染情况和HBV宫内感染的影响因素。方法在1; 064名孕妇第一次到医院建立孕产妇保健卡时进行问卷调查并检测其血清乙肝标志物,根据检测结果选择外周血乙型肝炎表面抗原(hepatitis B; surface antigen,HBsAg)阳性的产妇179例随访至其分娩,并采集其分娩时的脐血和胎盘组织。对脐血进行HBsAg和HBV; DNA的检测,对胎盘组织进行HBsAg的检测。采用chi ...
刘惠芬 +9 more
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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
Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 1, Page 41-50, July 2025.ABSTRACT Objectives Monochorionic diamniotic (MCDA) twins with selective fetal growth restriction (sFGR) and either continuous (cAREDF) or intermittent (iAREDF) absent or reversed end‐diastolic flow in the umbilical artery face significant fetal and neonatal risks.
A. T. R. Noll +19 more
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Ultrasound in Obstetrics &Gynecology, Volume 65, Issue 6, Page 749-760, June 2025.ABSTRACT Objective Placental dysfunction can result in small‐for‐gestational age (SGA) or fetal growth restriction (FGR). The aim of this prospective cohort study was to assess the association of the cerebroplacental ratio (CPR) and other more conventional fetoplacental Doppler indices, circulating placental growth factor (PlGF) levels and soluble fms ...
J. Hong +6 more
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