Results 41 to 50 of about 313,115 (285)

Three-Dimensional Models of Implantation Using Human Stem Cells: Scientific Insights and Broader Considerations

open access: yesBiomolecules
The ability to model the earliest stages of human embryonic development in vitro using pluripotent stem cells offers researchers new ways to understand and interrogate the intricacies of implantation.
Megan Munsie, Jock K. Findlay
doaj   +1 more source

The effect of prednisolone on sperm viability, sperm penetration rate and intra-uterine insemination rates in men with marked sperm agglutination and antisperm antibodies

open access: yesمجلة كلية الطب, 2005
Summary: Background: the immune system differentiates between the endogenous and exogenous bodies that inter the body. The break-down of blood-testis barrier results in the production of antisperm antibodies. This may occur in the case of an infection to
Al-Barazanchi M.T. R.   +5 more
doaj   +1 more source

Fresh or frozen? Classifying ‘spare' embryos for donation to human embryonic stem cell research [PDF]

open access: yes, 2010
This article is available open access, funded by the Wellcome Trust. It is distributed under a Creative Commons License (http://creativecommons.org/licenses/by/3.0/). Copyright @ 2010 Elsevier Ltd.United Kingdom (UK) funding to build human embryonic stem
Williams, C   +11 more
core   +1 more source

Human Stem Cell-Based Embryo Models in Implantation Research: Regulation, Consistency and Potential

open access: yesBiomolecules
The use of human stem cell-based embryo models (hSCBEM) in implantation research is developing rapidly. This raises regulatory and ethical issues as these models become more complex and get closer to morphological and functional identity with human ...
Søren Holm
doaj   +1 more source

Cloned buffalo bulls and their somatic cell donor bulls exhibit similar in-vitro embryo production efficienc

open access: yesRevista Científica, 2023
Somatic cell nuclear transfer (SCNT) has emerged as a valuable assisted reproductive technology for faster multiplication of animals. This helps to preserve the valuable superior germplasm.
Tanya Gupta   +4 more
doaj  

Prostaglandin F2α (PGF2α) production possibility and its receptors expression in the early- and late-cleaved preimplantation bovine embryos

open access: yesBMC Veterinary Research, 2019
Background Prostaglandin F2α (PGF2α) is an important component for the physiology of female reproductive processes. In the literature, the data pertaining to the synthesis and action of PGF2α in early embryonic bovine development are limited.
Katarzyna Grycmacher   +5 more
doaj   +1 more source

Canine sperm motility is associated with telomere shortening and changes in expression of shelterin genes

open access: yesBMC Veterinary Research, 2023
Background Motion quality is a critical property for essential functions. Several endogenous and exogenous factors are involved in sperm motility. Here, we measured the relative telomere length and evaluated the gene expression of its binding-proteins ...
Hossein Hassanpour   +5 more
doaj   +1 more source

Electrolyte and Water Balance of the Early Avian Embryo: Effects of Egg Turning [PDF]

open access: yes, 2002
Formation of sub-embryonic fluid (SEF) is a key aspect of the physiology of the early avian embryo.Here we review the process of SEF formation and the factors which influence its composition and the rate of SEF production and depletion in the Japanese ...
Latter, G.V.   +2 more
core   +1 more source

TRIALS TO IMPROVE THE VIABILITY OF RABBIT SEMEN AT VARIABLE CONDITIONS OF PRESERVATION USING DIFFERENT DILUENTS

open access: yesAssiut Veterinary Medical Journal, 2007
Ten sexually mature rabbit bucks of (NZW) were used in this study. The present study aimed to investigate the effect of some diluents and differents regimes of dilution and preservation on the viability of rabbit semen .
Rowida M.R.,, Osman R.H., Mona H.Shaker
doaj   +1 more source

Comparing Methods to Select Candidates for Re-Genotyping to Impute Higher-Density Genotype Data in a Japanese Black Cattle Population: A Case Study

open access: yesAnimals, 2023
As optimization methods to identify the best animals for dense genotyping to construct a reference population for genotype imputation, the MCA and MCG methods, which use the pedigree-based additive genetic relationship matrix (A matrix) and the genomic ...
Shinichiro Ogawa   +3 more
doaj   +1 more source

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