Results 21 to 30 of about 111,508 (346)

Single-cell analysis of mouse uterus at the invasion phase of embryo implantation

Cell & Bioscience, 2022
Background Embryo implantation into the uterus is a crucial step for human reproduction. A hypothesis has been proposed that the molecular circuit invented by trophoblasts for invasive embryo implantation during evolution might be misused by cancer cells
Jia-Peng He, Qing Tian, Qiu-Yang Zhu, Ji-Long Liu   +3 more
doaj   +1 more source

The physiological significance of insemination in programming pregnancy outcome [PDF]

, 2006
The cellular and molecular environment of the uterus during the pre - and peri - implantation period of early pregnancy is critical for implantation success and optimal fetal and placental development.
Andreas Krug, Ciaran Meachan
core   +5 more sources

Impact of the number of previous embryo implantation failures on IVF/ICSI-ET pregnancy outcomes in patients younger than 40 years: a retrospective cohort study

Frontiers in Endocrinology, 2023
ObjectiveThe objective of this study was to examine the influence of repeated embryo implantation failures on pregnancy outcomes among patients under 40 years of age undergoing in vitro fertilization/intracytoplasmic sperm injection embryo transfer (IVF ...
Yuan Fang, Yuan Fang, Fan Jingjing, Fan Jingjing, Cheng Tiantain, Cheng Tiantain, Xie Huanhuan, Xie Huanhuan, He Qiaohua, He Qiaohua   +9 more
doaj   +1 more source

The effects of aging on molecular modulators of human embryo implantation

iScience, 2021
Summary: Advancing age has a negative impact on female fertility. As implantation rates decline during the normal maternal life course, age-related, embryonic factors are altered and our inability to monitor these factors in an unbiased genome-wide ...
Panagiotis Ntostis, Grace Swanson, Georgia Kokkali, David Iles, John Huntriss, Agni Pantou, Maria Tzetis, Konstantinos Pantos, Helen M. Picton, Stephen A. Krawetz, David Miller   +10 more
doaj   +1 more source

Hormonal Replacement Treatment for Frozen-Thawed Embryo Transfer With or Without GnRH Agonist Pretreatment: A Retrospective Cohort Study Stratified by Times of Embryo Implantation Failures

Frontiers in Endocrinology, 2022
ObjectiveTo evaluate the efficacy of the long-acting gonadotropin-releasing hormone agonist (GnRH-a) administration before hormone replacement treatment for frozen-thawed embryo transfer in women with different times of embryo implantation failures ...
Leizhen Xia, Lifeng Tian, Shanshan Zhang, Jialyu Huang, Qiongfang Wu   +4 more
doaj   +1 more source

Pre-implantation mouse embryos cultured In vitro under different oxygen concentrations show altered ultrastructures [PDF]

, 2020
Assisted Reproductive Technologies routinely utilize different culture media and oxygen (O2) concentrations to culture human embryos. Overall, embryos cultured under physiological O2 tension (5%) have improved development compared to embryos cultured ...
Antonouli, S, Belli, M, Macchiarelli, G, Nottola, Sa, Palmerini, Mg, Rinaudo, P, Ruggeri, E   +6 more
core   +1 more source

Human Blastocyst Secreted microRNA Regulate Endometrial Epithelial Cell Adhesion

EBioMedicine, 2015
Successful embryo implantation requires synchronous development and communication between the blastocyst and the endometrium, however the mechanisms of communication in humans are virtually unknown.
Carly Cuman, Michelle Van Sinderen, Michael P. Gantier, Kate Rainczuk, Kelli Sorby, Luk Rombauts, Tiki Osianlis, Evdokia Dimitriadis   +7 more
doaj   +1 more source

Embryo Implantation

Developmental Biology, 2000
A lesson learned from modern developmental biology is the striking degree of conservation of strategies and molecules used to program developmental events in species as diverse as insects, birds, amphibians, and mammals. Nonetheless, mammals retain distinctions with regard to the strategies used to protect and nourish their offspring during development,
Carson, Daniel D., Bagchi, Indrani, Dey, Sudhandsu K., Enders, Allen C., Fazleabas, Asgerally T., Lessey, Bruce A., Yoshinaga, Koji   +6 more
openaire   +2 more sources

Telomere lengths in human oocytes, cleavage stage embryos and blastocysts [PDF]

, 2010
Telomeres are repeated sequences that protect the ends of chromosomes and harbour DNA-repair proteins. Telomeres shorten during each cell division in the absence of telomerase.
Achi, Aitken, Allsopp, Bailey, Baird, Betts, Blackburn, Cerone, de La Roche Saint-Andre, Dozortsev, Edwards, Evenson, Fiorenza, Fulka, G. M. Hartshorne, Gonzalo, H. P. Wong, Holt, Huang, J. Rai, Keefe, Keefe, Kimura, Lassalle, Liu, Liu, Liu, Longo, McIlrath, Meerdo, Morelli, Murnane, Rodr  guez, S. Turner, Schaetzlein, Tesarik, Valdes, Whitmire, Wong, Wright, Xu, Zhivkova, Zijlmans   +42 more
core   +2 more sources

Implantation potential of mosaic embryos [PDF]

Systems Biology in Reproductive Medicine, 2017
Chromosomal mosaicism is a relatively common finding in human IVF embryos. However, the association between mosaicism in trophoectoderm and inner mass cells, the mechanisms involved, and its effects on implantation are far from established. We retrospectively reanalyzed array-CGH results from 1,362 trophoectoderm biopsies.
Belén, Lledó, Ruth, Morales, Jose Antonio, Ortiz, Helena, Blanca, Jorge, Ten, Joaquín, Llácer, Rafael, Bernabeu   +6 more
openaire   +2 more sources