Results 51 to 60 of about 1,617 (145)

卵泡液中神经营养因子4及卵丘细胞TrkB受体与卵子发育潜能的关系 [PDF]

open access: yes, 2021
目的探索人卵泡液中神经营养因子4(NT-4)及卵丘颗粒细胞中TrkB受体的表达与卵子发育潜能的关系。方法收集2020年5月至2020年11月在中山大学附属第六医院生殖中心,因男方因素行卵胞浆内单精子注射(ICSI)治疗的63例患者的卵泡液和卵丘颗粒细胞,用ELISA检测卵泡液中NT-4水平,实时荧光定量PCR检测卵丘颗粒细胞中TrkB受体两种不同亚型TrkB-fl和TrkB-t1的表达水平,分析与卵子成熟、受精和胚胎发育的关系。结果卵泡液中NT-4水平与正常受精数(rs=0.250, P=0.048 ...
何姝婧   +5 more
core  

Automated multivolume placental reconstruction using three‐dimensional power Doppler ultrasound and infrared camera tracking

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 5, Page 624-632, May 2025.
ABSTRACT Objectives Placental insufficiency contributes to many obstetric pathologies, but there is no bedside clinical tool to evaluate placental perfusion. We have developed a method to acquire multiple three‐dimensional (3D) power Doppler (PD) ultrasound (US) volumes of placental vasculature, with infrared camera tracking of the precise spatial ...
A. Xue   +5 more
wiley   +1 more source

N‐terminal pro B‐type natriuretic peptide as biomarker to predict pre‐eclampsia and maternal–fetal complications

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 4, Page 447-455, April 2025.
ABSTRACT Objective A soluble fms‐like tyrosine kinase‐1 (sFlt‐1)‐to‐placental growth factor (PlGF) ratio cut‐off of 38 is currently considered optimal for ruling out pre‐eclampsia (PE); however, implementation of this ratio in clinical practice is limited.
M. N. Nan   +15 more
wiley   +1 more source

Clinical utility of ultrasonography in pediatric and adolescent gynecology: retrospective review of 1313 ultrasound examinations

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 2, Page 226-234, February 2025.
ABSTRACT Objectives Ultrasound is the first‐line imaging modality of the pelvis in the pediatric and adolescent gynecology (PAG) population. Ultrasound findings in pre‐ and postpubertal PAG patients differ from those in adults. Diagnostic models for adnexal pathology have not been validated in this cohort.
N. Cooper   +15 more
wiley   +1 more source

Prediction of pre‐eclampsia using maternal hemodynamic parameters at 12 + 0 to 15 + 6 weeks

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 2, Page 173-182, February 2025.
ABSTRACT Objectives To compare the maternal hemodynamic profile at 12 + 0 to 15 + 6 weeks' gestation in women who subsequently developed pre‐eclampsia (PE) and those who did not, and to assess the screening performance of maternal hemodynamic parameters for PE in combination with the Fetal Medicine Foundation (FMF) triple test, including maternal ...
X. Wang   +9 more
wiley   +1 more source

妊娠妇女高危型人乳头瘤病毒感染特点及基因分型

open access: yesZhongguo shiyan zhenduanxue, 2023
目的 分析妊娠妇女高危型人乳头瘤病毒感染特点及基因分型情况,指导妊娠期宫颈癌的防治。方法 回顾性分析2019年1月至12月北京市通州区中西医结合医院妊娠妇女的病例资料,所有病例均采用荧光定量PCR技术检测高危型HPV及基因分型。对患者临床资料及高危型HPV感染情况进行卡方检验进行统计学分析。结果 251例患者,HPV感染39例,感染率15.54%,以52型为主。18~25岁、26~35岁、36~45岁妊娠妇女HPV感染率分别为6.0%、19.05%、18.75%。妊娠早期 ...
樊荣, 王雪梅
doaj  

Evaluating use of two‐step International Ovarian Tumor Analysis strategy to classify adnexal masses identified in pregnancy: pilot study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 64, Issue 6, Page 808-817, December 2024.
ABSTRACT Objectives The primary aim was to validate the International Ovarian Tumor Analysis (IOTA) benign simple descriptors (BDs) followed by the Assessment of Different NEoplasias in the adneXa (ADNEX) model, if BDs cannot be applied, in a two‐step strategy to classify adnexal masses identified during pregnancy. The secondary aim was to describe the
J. Barcroft   +8 more
wiley   +1 more source

不同内膜准备方案在子宫内膜异位症患者冻融囊胚移植中的疗效观察 [PDF]

open access: yes, 2019
目的研究不同内膜准备方案对子宫内膜异位症(EMs)患者囊胚冻融移植(FET)妊娠结局的影响。方法回顾性分析EMs患者375个囊胚FET周期,按照子宫内膜准备方式分为:单纯人工周期组(HRT组,45个周期),促性腺激素释放激素激动剂降调节后人工周期组(GnRH-a+HRT组,121个周期)和自然周期组(NC组,209个周期)。比较3种内膜准备方案的囊胚FET妊娠结局。结果 3组EMs患者间年龄、不孕年限、基础抗苗勒管激素(AMH)和基础内分泌水平比较均无统计学差异(P>0.05 ...
刘芸, 张群芳, 陈国勇
core  

反复种植失败患者子宫内膜“种植窗”时期催产素受体的表达 [PDF]

open access: yes, 2020
目的研究催产素受体(OTR)在反复种植失败(RIF)妇女的“种植窗”时期子宫内膜组织中的表达及其与RIF的关系,并了解正常妇女月经周期子宫内膜催产素受体的表达。方法采用免疫组化法和RT-PCR法检测OTR在正常妇女月经周期增殖早、中、晚期和分泌早、中、晚期子宫内膜组织及RIF妇女分泌中期子宫内膜组织的表达情况,其中正常妇女分泌中期10例,其他5个时期各3例;RIF妇女分泌中期10例。结果RIF妇女组子宫内膜组织分泌中期OTR蛋白质和mRNA显著高于正常妇女组(P < 0.05 ...
习羽   +4 more
core  

Performance of QUiPP App v.2 tool for prediction of preterm birth in asymptomatic high‐risk women attending preterm specialist clinic: external validation study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 64, Issue 1, Page 71-78, July 2024.
ABSTRACT Objective To validate externally the QUiPP App v.2 algorithms in an independent cohort of high‐risk asymptomatic women attending a preterm birth (PTB) surveillance clinic in Ireland. Methods This was a retrospective, single‐center, observational study assessing discrimination and calibration of the QUiPP App v.2 at six predetermined clinical ...
L. Creswell   +4 more
wiley   +1 more source

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