Results 21 to 30 of about 821 (175)

Predictive performance of Fetal Medicine Foundation first‐trimester screening algorithm for pre‐eclampsia according to conception mode

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 6, Page 806-814, June 2026.
ABSTRACT Objective To investigate the incidence of pre‐eclampsia (PE) and the predictive performance of the Fetal Medicine Foundation (FMF) first‐trimester PE screening algorithm across pregnancies conceived using assisted reproductive technology (ART), after ovulation induction (OI) and through spontaneous conception (SC).
A. S. L. Kjaer   +23 more
wiley   +1 more source

In vitro: desarrollo de embriones de ganado lechero tropical criopre-servados mediante vitrificación o congelación lenta

open access: yesRevista Biológico Agropecuaria Tuxpan
La criopreservación de embriones es una herramienta útil para la conservación de los recursos genéticos del ganado. Sin embargo, existe poca información sobre la criopreservación de embriones de ganado lechero nativo tropical. El objetivo de este estudio
Morales-Crispín Luis Moisés   +4 more
doaj   +1 more source

Respuesta a la suplementación con propilenglicol en vacas multiovuladas, para la producción de embriones

open access: yesAgronomía Mesoamericana, 2018
La producción de embriones in vivo es una herramienta para la mejora genética bovina. Los protocolos de sincronización-multiovulación de las hembras donantes de embriones, así como la facilidad de la colecta de embriones han evolucionado, sin embargo ...
Roger Eduardo Molina-Coto   +3 more
doaj   +1 more source

Congelación de embriones bovinos

open access: yesRevista Complutense de Ciencias Veterinarias, 2015
تجميد أجنة الأبقار هو تقنية حيوية مطبقة على التكاثر الحيواني لهذا النوع، الذي أصبحت فوائده حقيقة واقعة بالفعل. الهدف من هذه الورقة هو إظهار جوانب ذات أهمية كبيرة لتجميد أجنة الأبقار. تعريف التجميد، فوائد تجميد الأجنة البقرية، عيوب تجميد الأجنة البقرية، المتغيرات التي يجب أخذها في الاعتبار لنجاح تجميد الأجنة البقرية، الحماية بالتبريد، وظائف الحماية ...
Alejandro Córdova Izquierdo   +6 more
openaire   +2 more sources

Ultrasound features in early pregnancy for predicting abnormal karyotype in first‐trimester miscarriage

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 3, Page 376-384, March 2026.
ABSTRACT Objective To investigate whether combining abnormal morphological features observed on ultrasound in live pregnancies that ended in a first‐trimester miscarriage can predict an abnormal karyotype. Methods This retrospective observational cohort study was conducted at the early‐pregnancy assessment unit at University College London Hospital ...
T. Setty   +5 more
wiley   +1 more source

Performance of non‐invasive prenatal testing in vanishing‐twin and multiple pregnancies: results of TRIDENT‐2 study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 6, Page 738-746, December 2025.
ABSTRACT Objective To evaluate the performance of non‐invasive prenatal testing (NIPT) in vanishing‐twin and multiple pregnancies. Methods This study was conducted as part of the TRIDENT‐2 study, in which NIPT was offered as a first‐tier screening test to women with a multiple pregnancy or vanishing‐twin pregnancy between 1 June 2020 and 31 March 2023 ...
J. C. A. van Eekhout   +86 more
wiley   +1 more source

Reproductive outcome after frozen embryo transfer with hormone replacement therapy according to luteal‐phase support protocol: systematic review and network meta‐analysis of randomized controlled trials

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 4, Page 422-432, October 2025.
ABSTRACT Objective To compare reproductive outcome between luteal‐phase support (LPS) protocols for frozen embryo transfer (FET) cycles with hormone replacement therapy (HRT). Methods A search was conducted in MEDLINE, Scopus, LILACS, EMBASE, Scielo.br, PROSPERO, CINAHL, PsycINFO, AMED, ClinicalTrials.gov, ICTRP, the Cochrane Library and conference ...
A. Etrusco   +11 more
wiley   +1 more source

Transplante de embriones en ganado Brahman en Venezuela

open access: yesRevista Científica, 2010
Un total de 54 vacas Brahman entre 1 y 9 partos fueron superovuladas con 38-40 mg hormona FSH-P, produciendo un total de 551 huevos, de los cuales 341 (61,8%), 182 (33,0%) y 28 (5,0%) fueron embriones transferibles (E.T.), embriones degenerados (E.D.) y ...
Rumualdo González Fernández   +4 more
doaj  

Aceite de maíz en la transferencia de embriones de ovejas Pelibuey

open access: yesRevista Mexicana de Ciencias Pecuarias
Se evalúo el efecto de la inclusión de aceite de maíz (AM) en la dieta de ovejas Pelibuey en un protocolo de transferencia de embriones. Veinticuatro ovejas donadoras fueron asignadas al azar a cada uno de dos grupos (G), G1: doce ovejas alimentadas con
Christofer Israel Márquez Hernández   +4 more
doaj   +1 more source

Impact of endometrial thickness on reproductive outcome in fresh and frozen–thawed embryo transfer: systematic review and meta‐analysis

open access: yesUltrasound in Obstetrics &Gynecology, Volume 66, Issue 3, Page 271-281, September 2025.
ABSTRACT Objective To evaluate the impact of endometrial thickness on the reproductive outcomes of embryo transfer (ET) treatments using both cut‐off‐based meta‐analysis and meta‐analysis of proportions. Methods This was a systematic review and meta‐analysis of comparative studies (randomized controlled trials, cohort studies, case–control studies) and
F. Pérez‐Milán   +10 more
wiley   +1 more source

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