Results 41 to 50 of about 79,942 (242)

Homozygous Loss of Septin12, but not its Haploinsufficiency, Leads to Male Infertility and Fertilization Failure

Frontiers in Cell and Developmental Biology, 2022
The SEPTIN12 gene has been associated with male infertility. Male Septin12+/− chimera mice were infertile, supporting the prevailing view that SEPTIN12 haploinsufficiency causes male infertility.
Haixia Chen, Peng Li, Xiaoling Du, Yiding Zhao, Lingling Wang, Ye Tian, Xueru Song, Ling Shuai, Xiaohong Bai, Lingyi Chen   +9 more
doaj   +1 more source

pH-dependent effects of procaine on equine gamete activation [PDF]

, 2019
Procaine directly triggers pH-dependent cytokinesis in equine oocytes and induces hypermotility in stallion spermatozoa, an important event during capacitation. However, procaine-induced hyperactivated motility is abolished when sperm is washed to remove
Gadella, Bart, Leemans, Bart, Stout, Tom A E, Van Soom, Ann   +3 more
core   +1 more source

Rescuing Fertilization Failure in ICSI: A Narrative Review of Calcium Ionophore Activation, PLCζ Testing, and Embryo Morphokinetics. [PDF]

Biomedicines
Fertilisation failure following intracytoplasmic sperm injection (ICSI) is a significant challenge in assisted reproductive technology (ART), particularly in the absence of an identifiable cause. Artificial oocyte activation (AOA), typically with calcium
Voros C, Mavrogianni D, Athanasiou D, Sapantzoglou I, Bananis K, Athanasiou A, Athanasiou A, Papadimas G, Tsimpoukelis C, Papapanagiotou I, Vaitsis D, Koulakmanidis AM, Daskalaki MA, Topalis V, Thomakos N, Theodora M, Antsaklis P, Chatzinikolaou F, Loutradis D, Daskalakis G.   +19 more
europepmc   +2 more sources

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, Dubeaux, Guillaume, Ge, Chennan, Hauser, Felix, Hsu, Po-Kai, Munemasa, Shintaro, Schroeder, Julian I, Takahashi, Yohei, Zhang, Jingbo, Zhang, Li, Zhao, Yunde   +10 more
core  

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, Lo Nostro, Fabiana Laura, Mazzoni, Talita Sarah, Quagio-Grassiotto, Irani   +3 more
core   +2 more sources

Mechanical Egg Activation and Rearing of First Instar Larvae of Sirex noctilio (Hymenoptera: Siricidae)

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, Bernard Slippers, Gudrun Dittrich-Schröder   +2 more
doaj   +1 more source

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, Haverfield, Jenna, Lai, Francis Anthony, Love, Daniel, Nakagawa, Shoma, Nomikos, Michail, Swann, Karl, Tsichlaki, Elina   +7 more
core   +3 more sources

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, E. Chmelíková, L. Tůmová, M. Ješeta   +3 more
doaj   +1 more source

Gold nanoparticles improve the embryonic developmental competency of artificially activated mouse oocytes.

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, Jamal, Muhammad, Ashraf, Muhammad, Zafar, Nosheen, Shahzadi, Shamaila, Maqbool, Tahir, Hadi, Faheem, Amjad, Riaz   +7 more
openaire   +2 more sources

ARTIFICIAL OOCYTE ACTIVATION IMPROVES THE LABORATORY AND CLINICAL OUTCOME IN VITRIFIED DONOR OOCYTE GROUP

Reproductive Medicine, 2021
Introduction: Oocyte donation is proved effective. Vitrification of donor eggs allows creation of donor egg banking. Simultaneously, for good clinical outcome it is recommended to thaw 10-15 oocytes at once.
N. Nigmatova, B. Abdilmanova, B.B. Kaldarbekova, G.G. Arstanbaeva, Y. Buyanzhargal, K.B. Kazhibekov, N.M. Khonik, V. Shchigolev   +7 more
semanticscholar   +1 more source