Results 41 to 50 of about 26,680 (159)

从胎盘细胞遗传学探讨胎儿生长迟缓病因 [PDF]

open access: yes, 1996
从胎盘细胞遗传学的角度,对27例胎儿宫内生长迟缓新生儿的胎盘绒毛、羊膜、脐血配对进行培养,细胞遗传分析。成功培养18例,发现1例绒方染色体嵌合,G带核型为46,XX/47,XX,+2,异常细胞系占56%。嵌合仅仅发生于绒毛部分 ...

core  

Overreliance on Orthographic Similarity in L2‐Japanese Conceptual Processing by L1‐Chinese Learners

open access: yesInternational Journal of Applied Linguistics, Volume 36, Issue 2, Page 1807-1820, May 2026.
ABSTRACT Orthographic and phonological similarities between first (L1) and second (L2) languages can facilitate L2 processing. Particularly, L1‐Chinese learners of L2‐Japanese can benefit from the shared morphosyllabic Chinese characters (Japanese kanji/Chinese hanzi) because of their similar orthographies.
Xuehan Zhao, Kexin Xiong, Sachiko Kiyama
wiley   +1 more source

Perinatal outcomes of twin pregnancies complicated by early twin‐to‐twin transfusion syndrome treated with fetoscopic laser surgery

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 4, Page 461-469, April 2026.
ABSTRACT Objective The aim of this study was to evaluate the perinatal outcomes of monochorionic diamniotic (MCDA) twin pregnancies complicated by early twin‐to‐twin transfusion syndrome (TTTS) treated with fetoscopic laser surgery (FLS), and to compare rates of fetal survival across Quintero stages.
F. G. Sileo   +35 more
wiley   +1 more source

胎儿胎粪性肠梗阻合并肠套叠肠闭锁及肠扭转坏死致多处穿孔1例

open access: yesZhongguo 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  

Predictive value of gB2 antibodies for maternal–fetal transmission after primary cytomegalovirus infection treated with valacyclovir

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 4, Page 455-460, April 2026.
ABSTRACT Objective To estimate the residual risk of maternal–fetal transmission after primary cytomegalovirus (CMV) infection in the periconceptional period or the first trimester in women treated with valacyclovir, and to assess whether the presence of glycoprotein B2 (gB2)‐specific immunoglobulin (Ig)‐G antibodies on immunoblot analysis refines fetal
K. O. Kagan   +6 more
wiley   +1 more source

胎教漫谈

open access: yes, 1996
"胎教"已不是新名词,近年来常被人们提起,也有许多文章谈及它,而且,还有各式各样的"胎教"材料应运而生(尤以音乐材料为多)。大家对"胎教"也许不再感到陌生。然而,如果综合地整理一下现有的大多数关于胎教的阐述,我们很容易发现,人们往往把胎教理解成只是对胎儿本身的"教育",也就是说 ...
施建农, 徐凡
core   +1 more source

Placental insufficiency markers to assess the risk of non‐chromosomal genetic conditions in early‐onset fetal growth restriction

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 4, Page 492-499, April 2026.
ABSTRACT Objectives To assess the value of placental insufficiency markers for estimating the risk of genetic anomalies in fetuses with isolated early‐onset fetal growth restriction (FGR), defined as an estimated fetal weight ≤ 3rd percentile diagnosed ≤ 28 + 6 weeks' gestation.
M. Armengol‐Alsina   +17 more
wiley   +1 more source

HBcAg 在乙型肝炎病毒携带者孕妇胎盘中的识别与意义

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2000
【目的】研究胎儿感染乙型肝炎病毒( HBV)与胎盘感染之间的关系及其意义。【方法】用 PCR 及斑点杂交法检测 母血、新生儿静脉血 HBV DNA(确定胎儿感染者) , 用免疫组化方法( LSAB 法)检测61例 HBV 携带者母亲胎盘 HBcAg。【结果】 ① 胎儿HBV 感染率为 22. 92%( 33/144);②61例胎盘 HBcAg 阳性率为 68. 85%( 41/61) , 胎儿感染组阳性率( 82. 14%)高于对 照组( 54. 55%) , P
刘颖琳   +3 more
doaj  

Multiple pregnancy with complete hydatidiform mole and coexisting normal fetus: systematic review and meta‐analysis of clinical outcomes from non‐randomized studies

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 272-282, March 2026.
ABSTRACT Objective Complete hydatidiform mole and coexisting normal fetus (CHMCF) is a rare condition for which there is significant heterogeneity in diagnosis, counseling and management of complications. The objective of this study was to summarize the prevalence of clinical outcomes in reported cases of CHMCF.
N. Salmeri   +8 more
wiley   +1 more source

Fetoscopic laser ablation vs standard management for Type‐II and Type‐III vasa previa

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 320-328, March 2026.
ABSTRACT Objective The standard management (SM) for vasa previa (VP) includes antepartum inpatient admission at 28–32 weeks' gestation followed by Cesarean delivery at 34–37 weeks. Case reports and case series have reported on fetoscopic laser ablation (FLA) as an alternative management approach for Types‐II and ‐III VP.
S. Backley   +11 more
wiley   +1 more source

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