Results 1 to 10 of about 1,429 (165)
Zhongshan Daxue xuebao. Yixue kexue ban, 2010 【目的】 选择最佳人源饲养层,并检测不同组织来源的人源饲养层细胞碱性成纤维细胞生长因子(bFGF)的分泌情况,探讨其水平与人胚胎干细胞(hESCs)生长是否相关65377; 【方法】 原代培养包皮真皮65380;子宫内膜基质65380;绒毛65380;输卵管65380;胎儿真皮65380;胎儿肌肉及胎鼠成纤维细胞(MEFs);按组织来源分为7组(MEFs为对照),同期接种同一株hESCs,从饲养层细胞密度65380;丝裂霉素作用时间等,寻找不同饲养层适合hESCs生长的最佳条件;按人体组织分6组 ...
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Ultrasound in Obstetrics &Gynecology, Volume 62, Issue 3, Page 320-327, September 2023., 2023 ABSTRACT Objective The published literature reports mostly on the outcome of twin pregnancies complicated by twin–twin transfusion syndrome (TTTS) without considering whether the pregnancy is also complicated by another pathology, such as selective fetal growth restriction (sFGR).
F. D'Antonio +4 more
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Adverse outcome following selective termination of presenting twin vs non‐presenting twin
Ultrasound in Obstetrics &Gynecology, Volume 61, Issue 6, Page 705-709, June 2023., 2023 ABSTRACT Objective Data are lacking on the impact on pregnancy outcome of the position of the abnormal fetus in a discordant twin pregnancy undergoing selective termination (ST). Tissue maceration post ST of the presenting twin may lead to early rupture of membranes, amnionitis and preterm labor.
H. Miremberg +14 more
wiley +1 more source
Ultrasound in Obstetrics &Gynecology, Volume 59, Issue 4, Page 437-449, April 2022., 2022 ABSTRACT Objective To develop a standardized sonographic evaluation and reporting system for Cesarean scar pregnancy (CSP) in the first trimester, for use by both general gynecology and expert clinics. Methods A modified Delphi procedure was carried out, in which 28 international experts in obstetric and gynecological ultrasonography were invited to ...
I. P. M. Jordans +18 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2022 目的 探讨孕早期B超影像异常与胎儿绒毛染色体异常核型及多态变异关系。方法 对2016年11月至2018年5月到玉林市妇幼保健院就诊孕早期B超影像诊断胎儿异常，孕妇自愿行绒毛产前诊断82例绒毛染色体回顾统计分析。结果 孕早期B超影像异常82例行绒毛染色体培养，培养成功79例，培养成功率96.34%。培养成功79例绒毛染色体核型中，胎儿绒毛染色体异常核型及多态变异检出率，21-三体为11.39%,18-三体为10.13%，特纳综合症为8.86%，嵌合体为3.80%,13-三体为3.80%，易位为2.53 ...
邓国生
doaj
New approach for estimating risk of miscarriage after chorionic villus sampling
Ultrasound in Obstetrics &Gynecology, Volume 56, Issue 5, Page 656-663, November 2020., 2020 ABSTRACT Objective To estimate the risk of miscarriage associated with chorionic villus sampling (CVS). Methods This was a retrospective cohort study of women attending for routine ultrasound examination at 11 + 0 to 13 + 6 weeks' gestation at one of eight fetal‐medicine units in Spain, Belgium and Bulgaria, between July 2007 and June 2018.
M. M. Gil +15 more
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Ultrasound in Obstetrics &Gynecology, Volume 56, Issue 3, Page 378-387, September 2020., 2020 ABSTRACT Objective To investigate the antenatal management and outcome in a large international cohort of monochorionic twin pregnancies with spontaneous or post‐laser twin anemia–polycythemia sequence (TAPS). Methods This study analyzed data of monochorionic twin pregnancies diagnosed antenatally with spontaneous or post‐laser TAPS in 17 fetal therapy
L. S. A. Tollenaar +37 more
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3种饲料添加剂对吉富罗非鱼幼鱼生长性能、消化酶活性和肝、肠组织结构的影响 [PDF]
, 2018 为探讨中草药提取物、胆汁酸、微生态制剂对吉富罗非鱼(Oreochromis niloticus)生长性能、消化酶活性和肝、肠组织结构的影响,以基础饲料为对照,分别在每千克基础饲料中添加中草药提取物(1、2 g)、胆汁酸(0.1、0.2 g)、微生态制剂(1、2 g)配制成6种试验饲料,选取平均体质量为(32.75±5.75)g的吉富罗非鱼幼鱼483尾,随机分为7处理,每处理3平行,每平行23尾,共进行养殖实验45 d。结果显示:与对照组相比,低剂量使用此3种添加剂均有改善实验鱼生长和饲料利用的趋势 ...
孙陆宇 +3 more
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, 2018 妊娠第37周前分娩的现象被称为早产。目前,全球每年约有1500万早产儿出生,其中100万早产儿在出生后的1个月内死亡。因此,早产作为一个全球性的问题,为社会带来了严重的负担。探索早产发生的机制,寻找有效的预防方法,是目前亟待解决的科学问题。文章围绕影响母胎界面微环境的3个主要因素即胎儿滋养层细胞、子宫蜕膜和母胎界面免疫细胞,详细阐述母胎界面微环境改变在早产发生中的作用机制。国家重点研发计划 ...
孟楠, 张思亚, 王海滨, 黄琳
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Ultrastructure of photoreceptors in two blood-suck leeches(两种吸血蛭类光感受器的超微结构)
Zhejiang Daxue xuebao. Lixue ban, 2005 运用透射电镜技术对采自浙江的日本医蛭和天目山蛭的光感受器—眼的超微结构进行了比较研究.发现两者的主要差别在于前者眼的色素杯浅，且宽度与深度较为接近，透光体微绒毛可卷曲；后者眼的色素杯深，其深度明显大于宽度，透光体微绒毛未见卷曲.天目山蛭感光细胞中由微绒毛组成的感光膜表面积远大于日本医蛭，因此陆生蛭类的感光能力比水生种类强，这与陆地环境的复杂性有一定关系.
LUOYuan-yuan(罗媛媛) +1 more
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