نتایج جستجو برای: embryo rescue
تعداد نتایج: 94794 فیلتر نتایج به سال:
There is a search for rescue therapy against fetal origins of cardiovascular disease in pregnancy complicated by chronic fetal hypoxia, particularly following clinical diagnosis of fetal growth restriction (FGR). Melatonin protects the placenta in adverse pregnancy; however, whether melatonin protects the fetal heart and vasculature in hypoxic pregnancy independent of effects on the placenta is...
Muscle regulatory factors activate myogenesis in all vertebrates, but their role has been studied in great detail only in the mouse embryo, where all but myogenin--Myod, Myf5 and Mrf4--are sufficient to activate (albeit not completely) skeletal myogenesis. In the zebrafish embryo, myod and myf5 are required for induction of myogenesis because their simultaneous ablation prevents muscle developm...
All-trans retinoic acid (RA) is a key player in many developmental pathways. Most methods used to study its effects in development involve continuous all-trans RA activation by incubation in a solution of all-trans RA or by implanting all-trans RA-soaked beads at desired locations in the embryo. Here we show that the UV-driven photo-isomerization of 13-cis RA to the trans-isomer (and vice versa...
The neuroectoderm arises during gastrulation as a population of undifferentiated proliferating neuroepithelial cells. As development continues, neuroepithelial cells leave the cell cycle and differentiate into neurons and glia of the functioning central nervous system. What processes establish the spatial distribution of proliferating neuroepithelial cells? To investigate this question, zic2a w...
BACKGROUND Retarded embryo growth is a pervasive effect of culture in vitro. METHODS A systematic analysis of the interactions between media design, embryo culture density, oxygen tension, amino acids, trophic ligands and the genetic background of the mouse on embryo growth rates in vitro was performed. RESULTS Growth retardation of mouse zygotes was greater in 20% O2 than 5%, a sequential ...
consumers prefer seedless grapes for table and raisin grape industry. release of new superior seedless grape cultivars is one of the main objectives in grape breeding programs. embryo rescue is one of the techniques to develop a new seedless cultivar. therefore, in this study, the effects of bud flower spraying with ba (50 ppm) and ccc (200 ppm) before blooming were studied in ‘flame seedless’ ...
Rapid obtaining of clonal plants is desirable to shorten crossing programs in fruit tree breeding. In this work, seedling germination and multiplication in vitro allowed us to establish successful in vitro cultures of hybrid seedlings. As a part of a breeding program in apricot rootstocks, we have obtained interespecific hybrid seeds after cross-pollination: myrobalan x apricot (Prunus cerasife...
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