Fertilization, polyspermy, embryo quality, and pregnancy outcomes were not significantly different between both groups. (ecerm.org)
Embryonic development3
Despite considerable technological advancements, polyspermy remains a significant challenge in in-vitro fertilization (IVF) procedures in pigs, disrupting normal embryonic development. (e-jarb.org)
Collectively, these results demonstrate that various fertilization conditions, including modified co-culture period, active sperm separation, and culture medium volume, enhance fertilization efficiency and subsequent embryonic development by decreasing polyspermy occurrence. (e-jarb.org)
This study aimed to investigate the effects of early and late cumulus cell removal on fertilization, polyspermy, embryonic development potential, blastocyst development, and clinical outcomes. (ecerm.org)
Fertilization4
While alkaloids often exert unique pharmacological effects on animal cells, exposure of sea urchin eggs to nicotine causes polyspermy at fertilization in a dose-dependent manner. (mdpi.com)
Compared with other groups, sperms treated with melatonin demonstrated hyperactivity, and the fertilization rate was significantly increased. (vetmedmosul.com)
Here, we aimed to determine whether optimal fertilization conditions reduce the polyspermy incidence in pigs. (e-jarb.org)
Early cumulus cell removal at 6 hours had no significant difference in fertilization, polyspermy, embryo development, or obstetric and perinatal outcomes compared to late removal. (ecerm.org)
Multiple sperm1
Polyspermy is the condition when multiple sperm fuse with a single egg. (wikipedia.org)
Sperm4
A 2002 study demonstrated that mammalian sperm contain PLC zeta which can start the signaling cascade. (wikipedia.org)
Such cytoskeletal changes appeared to render the eggs more receptive to sperm, as judged by the significant alleviation of polyspermy by latrunculin-A and mycalolide-B. In addition, our fluorimetric assay provided the first evidence that nicotine directly accelerates polymerization kinetics of G-actin and attenuates depolymerization of preassembled F-actin. (mdpi.com)
Although the 6 h sperm-free cultured group had a higher penetration rate than the 5 h cultured group, the polyspermy rate significantly increased in the 6 h sperm-free cultured group. (e-jarb.org)
On the other hand, a more recent study in 2018 caused a stir in the scientific community by demonstrating that men who wore boxers had 17 percent more sperm compared to those in briefs. (spermcountreport.com)
Condition1
Our results, along with those on Otx - and Hox -gene expression, demonstrate that the cephalopod condition is similar to that in mouse and fruit fly, with Otx being expressed in the anterior-most brain region (except for the vertical lobe) and a Pax2/5/8 expression domain separating the Otx -domain from a Hox -gene-expressing posterior brain region. (biomedcentral.com)
Studies1
Previous studies have demonstrated that transcription factors such as Pax genes play important roles during their development. (biomedcentral.com)
Block to polyspermy4
In sea urchins, the block to polyspermy comes from two mechanisms: the fast block and the slow block. (wikipedia.org)
The fast block is an electrical block to polyspermy. (wikipedia.org)
Following fertilization, the ZP undergoes changes described as 'hardening', which prevent multiple sperm from fertilizing the egg and thereby establish a block to polyspermy. (edu.au)
Present in the cortical granules of non-activated oocytes, is exocytosed during the cortical reaction in response to oocyte activation and might participate in the block to polyspermy. (betalifesci.com)
Activation1
Zinc sparks induce physiochemical changes in the egg zona pellucida that prevent polyspermy [1] "During fertilization or chemically-induced egg activation, the mouse egg releases billions of zinc atoms in brief bursts known as 'zinc sparks. (edu.au)