Results 141 to 150 of about 133,185 (340)

The Effect of Assisted Reproductive Technologies on Human Sex Ratios

Australian and New Zealand Journal of Obstetrics and Gynaecology, EarlyView.
ABSTRACT Background Modern assisted reproductive technology (ART), including pre‐implantation genetic testing for aneuploidy (PGT‐A), has opened new avenues in understanding early embryonic events and has simultaneously raised questions about the impact of ART itself on sex ratios.
Ektoras X. Georgiou, Yossi Mizrachi, Rebecca Kelley, Sharyn Stock‐Myer, John Stevens, David K. Gardner, Alex Polyakov   +6 more
wiley   +1 more source

A Simplified Method for spreading the Chromosomes in the Rabbit Blastocyst [PDF]

, 1954
O. Venge
openalex   +1 more source

Ascorbic acid 2‐glucoside improves survival, quality, and fertility of frozen‐thawed C57Bl/6J and C57Bl/6N mouse spermatozoa

Andrology, EarlyView.
Abstract Background Ascorbic acid 2‐glucoside (AA2G) is a stabilized form of ascorbic acid and a potent antioxidant. Ascorbic acid is present in the testes and epididymis and helps maintain the physiological integrity of reproductive organs. Its properties have been utilized to protect spermatozoa of different species from oxidative stress.
Marcello Raspa, Renata Paoletti, Ferdinando Scavizzi   +2 more
wiley   +1 more source

ACTION OF VARIOUS AGENTS ON RABBIT BLASTOCYSTS IN VIVO AND IN VITRO [PDF]

, 1969
Cecilia Lutwak‐Mann, M. F. HAY, D. A. T. New   +2 more
openalex   +1 more source

Intrauterine administration of human chorionic gonadotropin does not improve pregnancy and life birth rates independently of blastocyst quality: a randomised prospective study

Reproductive Biology and Endocrinology, 2015
BackgroundSuccessful embryo implantation depends on a well-timed maternal-embryonic crosstalk. Human chorionic gonadotropin (hCG) secreted by the embryo is known to play a key role in this process and to trigger a complex signal transduction cascade ...
B. Wirleitner, M. Schuff, P. Vanderzwalmen, A. Stecher, J. Okhowat, L. Hradecký, T. Kohoutek, M. Králíčková, D. Spitzer, N. Zech   +9 more
semanticscholar   +1 more source

A WHO 2021‐based comprehensive scheme outlining sperm parameters’ associations with IVF outcomes in PGT‐A cycles

Andrology, EarlyView.
Abstract Objective To examine the association between semen parameters, assessed according to World Health Organization (WHO)‐2021 criteria, and paternal body mass index (BMI) and age, with embryological and clinical outcomes in ICSI cycles involving preimplantation genetic testing for aneuploidy (PGT‐A).
Rossella Mazzilli, Danilo Cimadomo, Federica Innocenti, Marilena Taggi, Greta Chiara Cermisoni, Sara Ginesi, Lisa Dovere, Laura Albricci, Maurizio Guido, Maria Rosaria Campitiello, Susanna Ferrero, Antonio Capalbo, Alberto Vaiarelli, Filippo Maria Ubaldi, Alberto Ferlin, Laura Rienzi, Gianluca Gennarelli   +16 more
wiley   +1 more source

PTPN11 (SHP2) Is Indispensable for Growth Factors and Cytokine Signal Transduction During Bovine Oocyte Maturation and Blastocyst Development

Cells, 2019
This study was aimed to investigate the role of SHP2 (Src-homology-2-containing phosphotyrosine phosphatase) in intricate signaling networks invoked by bovine oocyte to achieve maturation and blastocyst development.
Muhammad Idrees, Lianguang Xu, Seok-Hwan Song, Myeong-Don Joo, Kyeong-Lim Lee, Tahir Muhammad, Marwa El Sheikh, Tabinda Sidrat, Il-Keun Kong   +8 more
doaj   +1 more source

Insulin-like growth factor 1 increases apical fibronectin in blastocysts to increase blastocyst attachment to endometrial epithelial cells in vitro.

Human Reproduction, 2015
STUDY QUESTION Does insulin-like growth factor 1 (IGF1) increase adhesion competency of blastocysts to increase attachment to uterine epithelial cells in vitro?
C. Green, S. Fraser, M. Day
semanticscholar   +1 more source

Effects of AZFc (b2/b4, b1/b3, b2/b3, and gr/gr) deletions and primary duplications on the outcomes of the first intracytoplasmic sperm injection treatment cycle: A single‐center retrospective cohort study

Andrology, EarlyView.
Abstract Background Current advances in high‐throughput sequencing technology enable the precise identification of Y chromosome microdeletion and primary duplication in infertile couples, but the mechanism and clinical significance of these mutations in assisted reproductive techniques remain unclear.
Linlin Li, Xiangyin Liu, Xinying Wang, Hongguo Zhang, Ruizhi Liu   +4 more
wiley   +1 more source

THE REACTION OF THE MOUSE BLASTOCYST AND ITS ZONA PELLUCIDA TO pH CHANGES IN VITRO [PDF]

, 1969
Patricia Bowman, Anne McLaren
openalex   +1 more source