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Sperm capacitation in bulls, rams, bucks, and boars: molecular mechanisms and species-specific differences [PDF]

open access: yesFrontiers in Veterinary Science
Capacitation is the process by which sperm undergoes physical, biochemical, and molecular changes to acquire the ability to fertilize an oocyte.
Abdulkadir Kaya   +5 more
doaj   +2 more sources

Levels of Protein CoAlation Regulate Redox Signaling Events of Human Sperm Capacitation [PDF]

open access: yesAntioxidants
Infertility is a global health problem, with male factors contributing to nearly half of all cases. Up to 30% of male infertility is classified as idiopathic, in part because routine semen analysis does not assess sperm fertilizing competence ...
Chika Onochie   +3 more
doaj   +2 more sources

Development of an optimal protocol to induce capacitation of boar spermatozoa in vitro

open access: yesJournal of Animal Reproduction and Biotechnology, 2022
In 1951, Colin Russell Austin and Min Chueh Chang identified “capacitation”, a special process involving ejaculated spermatozoa in the female reproductive tract.
Seung-Ik Jang   +6 more
doaj   +1 more source

piR-121380 Is Involved in Cryo-Capacitation and Regulates Post-Thawed Boar Sperm Quality Through Phosphorylation of ERK2 via Targeting PTPN7

open access: yesFrontiers in Cell and Developmental Biology, 2022
Cryopreservation induces capacitation-like (cryo-capacitation) changes, similar to natural capacitation, and affects the fertility potential of post-thawed sperm. The molecular mechanism of sperm cryo-capacitation during cryopreservation remains unknown.
Yihan Wang   +6 more
doaj   +1 more source

CAPACITANCE MATRIX REVISITED [PDF]

open access: yesProgress In Electromagnetics Research B, 2021
ver.
Smolić, Ivica, Klajn, Bruno
openaire   +3 more sources

New insights into posttranslational modifications of proteins during bull sperm capacitation

open access: yesCell Communication and Signaling, 2023
Background Due to the unique nature of spermatozoa, which are transcriptionally and translationally silent, the regulation of capacitation is based on the formation of posttranslational modifications of proteins (PTMs).
Agnieszka Mostek-Majewska   +3 more
doaj   +1 more source

Between Equity and Differentiation: An Analytical schema of the social function of education

open access: yesInternational Journal of Sociology of Education, 2013
The educational sphere has an internal function relatively agreed by social scientists. Nonetheless, the contribution that educational systems provide to the society (i.e., their social function) does not have the same degree of consensus.
Ignacio Madero Cabib   +1 more
doaj   +1 more source

EFFECT OF DIFFERENT L-ARGININE CONCENTRATIONS ON IN VITRO BUFFALO SEMEN FERTILIZING POTENTIALS [PDF]

open access: yesAssiut Veterinary Medical Journal, 2016
Sperm capacitation and acrosome reaction are essential for fertilization. L-Arginine plays an important role in the physiology of spermatozoa and has been shown to enhance their metabolism and maintain their motility.
MONTASER, A., BADR, M.R.
doaj   +1 more source

NADPH Oxidase 5 and Melatonin: Involvement in Ram Sperm Capacitation

open access: yesFrontiers in Cell and Developmental Biology, 2021
Reactive oxygen species (ROS) play an essential role in mammalian sperm capacitation. NADPH oxidase 5 (NOX5) has been described as the main source of ROS production in some mammalian spermatozoa, such as human and equine. On the other hand, melatonin can
Sara Miguel-Jiménez   +5 more
doaj   +1 more source

Mitochondrial Activation and Reactive Oxygen-Species Overproduction during Sperm Capacitation are Independent of Glucose Stimuli

open access: yesAntioxidants, 2020
Spermatozoa capacitation is a complex process that requires specific ionic and energetic conditions to support biochemical alterations leading to motility hyperactivation. However, human sperm capacitation is still poorly understood.
David F. Carrageta   +6 more
doaj   +1 more source

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