Results 31 to 40 of about 17,633 (227)
Insects, 2023 Egg activation is a cellular transition of an arrested mature oocyte into a developing embryo through a coordinated series of events. Previous studies in Hymenoptera have indicated that mechanical pressure can induce egg activation.
Elmarie van der Merwe +2 more
doaj +1 more source
MAP3Kinase-dependent SnRK2-kinase activation is required for abscisic acid signal transduction and rapid osmotic stress response. [PDF]
, 2020 Abiotic stresses, including drought and salinity, trigger a complex osmotic-stress and abscisic acid (ABA) signal transduction network. The core ABA signalling components are snf1-related protein kinase2s (SnRK2s), which are activated by ABA-triggered ...
Ceciliato, Paulo HO +10 more
core
The role of nitric oxide in parthenogenetic activation of pig oocytes: A review
Czech Journal of Animal Science, 2007 Parthenogenetic activation of mammalian oocytes with artificial stimuli is commonly applied in various reproductive biotechniques, e.g. cloning using nuclear transfer. For this reason, many studies focus on oocyte activation in vitro.
J. Petr +3 more
doaj +1 more source
Action of the Metalloproteinases in Gonadal Remodeling during Sex Reversal in the Sequential Hermaphroditism of the Teleostei Fish Synbranchus marmoratus (Synbranchiformes: Synbranchidae) [PDF]
, 2018 Teleostei present great plasticity regarding sex change. During sex reversal, the whole gonadincluding the germinal epithelium undergoes significant changes, remodeling, and neoformation.However, there is no information on the changes that occur within ...
Antoneli, Fernanda +3 more
core +2 more sources
Ca2+ dynamics in oocytes from naturally-aged mice [PDF]
, 2016 The ability of human metaphase-II arrested eggs to activate following fertilisation declines with advancing maternal age. Egg activation is triggered by repetitive increases in intracellular Ca2+ concentration ([Ca2+]i) in the ooplasm as a result of ...
FitzHarris, Greg +7 more
core +3 more sources
Veterinary research forum : an international quarterly journal, 2021 Currently, artificial oocyte activation has attracted wide attention in assisted reproduction due to extensive range of applications, particularly in somatic cell nuclear transfer and deriving pluripotent stem cell lines and it is the unique model to determine the role of paternal genome.
Muhammad, Tahir +7 more
openaire +2 more sources
TRPV3 Channels Mediate Strontium-Induced Mouse-Egg Activation
Cell Reports, 2013 In mammals, calcium influx is required for oocyte maturation and egg activation. The molecular identities of the calcium-permeant channels that underlie the initiation of embryonic development are not established.
Ingrid Carvacho +3 more
doaj +1 more source
Efficacy of Calcium Chloride Dihydrate Supplementation at ICSI on Patient Outcomes
Fertility & Reproduction, 2022 Background: ICSI typically results in fertilisation rates of >65% however patients may still have low or no fertilisation despite the oocyte and sperm quality appearing normal.
Sophie POPKISS +4 more
doaj +1 more source
Early epigenetic reprogramming in fertilized, cloned, and parthenogenetic embryos [PDF]
, 2016 Despite ongoing research in a number of species, the efficiency of embryo production by nuclear transfer remains low. Incomplete epigenetic reprogramming of the nucleus introduced in the recipient oocyte is one factor proposed to limit the success of ...
Beaujean, Nathalie +5 more
core +3 more sources
Reproductive Biology and Endocrinology, 2022 Globozoospermia (OMIM: 102530) is a rare type of teratozoospermia ( A; p.R1224Q) in the patient. This variant significantly reduced the protein expression of SSFA2.
Gelin Huang +11 more
doaj +1 more source