Results 31 to 40 of about 218,627 (165)

Redox regulation of mammalian sperm capacitation

Asian Journal of Andrology, 2015
Capacitation is a series of morphological and metabolic changes necessary for the spermatozoon to achieve fertilizing ability. One of the earlier happenings during mammalian sperm capacitation is the production of reactive oxygen species (ROS) that will ...
Cristian O′Flaherty
doaj   +1 more source

Collection of in vivo Capacitated Sperm from Different Locations Along the Reproductive Tract of Time-Mated Female Mice by Microdissection

Bio-Protocol, 2021
Mammalian sperm cells are not capable of fertilizing an egg immediately after ejaculation; instead, they must gradually acquire the capacity to fertilize while they travel inside the female reproductive tract.
Lukas Ded, Jean- Chung
doaj   +1 more source

Arylsulfatase A Remodeling during Human Sperm In Vitro Capacitation Using Field Emission Scanning Electron Microscopy (FE-SEM)

Cells, 2021
Capacitation drives sperm biophysical and biochemical changes for sperm-oocyte interactions. It is a well-known fact that the molecular complex arylsulfatase A (ARSA), hyaluronidase sperm adhesion molecule 1 (SPAM1), and heat shock protein 2 (HSPA2 ...
María José Gómez-Torres, Natalia Huerta-Retamal, Laura Robles-Gómez, Paula Sáez-Espinosa, Jon Aizpurua, Manuel Avilés, Alejandro Romero   +6 more
doaj   +1 more source

Exogenous Albumin Is Crucial for Pig Sperm to Elicit In Vitro Capacitation Whereas Bicarbonate Only Modulates Its Efficiency

Biology, 2021
This work sought to address whether the presence of exogenous bicarbonate is required for pig sperm to elicit in vitro capacitation and further progesterone-induced acrosome exocytosis. For this purpose, sperm were either incubated in a standard in vitro
Bruna Resende Chaves, Ana Paula Pinoti Pavaneli, Olga Blanco-Prieto, Elisabeth Pinart, Sergi Bonet, Márcio Gilberto Zangeronimo, Joan E. Rodríguez-Gil, Marc Yeste   +7 more
doaj   +1 more source

Membrane Potential Assessment by Fluorimetry as a Predictor Tool of Human Sperm Fertilizing Capacity

Frontiers in Cell and Developmental Biology, 2020
Mammalian sperm acquire the ability to fertilize eggs by undergoing a process known as capacitation. Capacitation is triggered as the sperm travels through the female reproductive tract.
Carolina Baro Graf, Carolina Baro Graf, Carla Ritagliati, Valentina Torres-Monserrat, Cintia Stival, Carlos Carizza, Mariano G. Buffone, Dario Krapf, Dario Krapf   +8 more
doaj   +1 more source

Specific lectin binding sites during in vitro capacitation and acrosome reaction in boar spermatozoa

Italian Journal of Animal Science, 2021
Sperm glycocalyx and plasma membrane undergo outstanding modifications during fertilization. However, it is unclear how in vitro capacitation time and acrosome reaction affect the specific location of boar sperm glycoconjugates.
Laura Robles-Gómez, Leopoldo González-Brusi, Paula Sáez-Espinosa, Natalia Huerta-Retamal, Paula Cots-Rodríguez, Manuel Avilés, María José Gómez-Torres   +6 more
doaj   +1 more source

Update on mammalian sperm capacitation: How much does the horse differ from other species?

Reproduction, 2019
In contrast to various other mammalian species, conventional in vitro fertilization (IVF) with horse gametes is not reliably successful. In particular, stallion spermatozoa fail to penetrate the zona pellucida, most likely due to incomplete activation of
B. Leemans, T. Stout, C. De Schauwer, S. Heras, H. Nelis, M. Hoogewijs, A. Van Soom, B. Gadella   +7 more
semanticscholar   +1 more source

Inhibiting sperm pyruvate dehydrogenase complex and its E3 subunit, dihydrolipoamide dehydrogenase affects fertilization in Syrian hamsters. [PDF]

PLoS ONE, 2014
BACKGROUND/AIMS: The importance of sperm capacitation for mammalian fertilization has been confirmed in the present study via sperm metabolism.
Archana B Siva, Subbarayalu Panneerdoss, Purnima Sailasree, Durgesh K Singh, Duvurri B Kameshwari, Sisinthy Shivaji   +5 more
doaj   +1 more source

Manipulation of bicarbonate concentration in sperm capacitation media improvesin vitro fertilisation output in porcine species

Journal of Animal Science and Biotechnology, 2019
The in vivo concentration of bicarbonate (HCO3−), one of the essential sperm capacitating effectors, varies greatly in the different environments sperm go through from cauda epididymis to the fertilisation site.
C. Soriano-Úbeda, J. Romero-Aguirregomezcorta, C. Matás, P. Visconti, F. García-Vázquez   +4 more
semanticscholar   +1 more source

High throughput small RNA and transcriptome sequencing reveal capacitation-related microRNAs and mRNA in boar sperm

BMC Genomics, 2018
Background Capacitation, a prerequisite for oocyte fertilization, is a complex process involving series of structural and functional changes in sperms such as membrane modifications, modulation of enzyme activities, and protein phosphorylation.
Yuan Li, Rong-Hong Li, Ming-Xia Ran, Yan Zhang, Kai Liang, Ying-Nan Ren, Wen-Cheng He, Ming Zhang, Guang-Bin Zhou, Izhar Hyder Qazi, Chang-Jun Zeng   +10 more
doaj   +1 more source