Results 21 to 30 of about 21,661 (226)

Energy Metabolism and Hyperactivation of Spermatozoa from Three Mouse Species under Capacitating Conditions

Cells, 2022
Mammalian sperm differ widely in sperm morphology, and several explanations have been presented to account for this diversity. Less is known about variation in sperm physiology and cellular processes that can give sperm cells an advantage when competing ...
Ester Sansegundo, Maximiliano Tourmente, Eduardo R. S. Roldan   +2 more
doaj   +1 more source

Essential role of CFTR in PKA-dependent phosphorylation, alkalinization, and hyperpolarization during human dperm capacitation [PDF]

, 2017
Mammalian sperm require to spend a limited period of time in the female reproductive tract to become competent to fertilize in a process called capacitation.
Austin, Berger, Bobadilla, Buffone, Buffone, Buffone, Buffone, Chang, Chen, Chen, Chen, Chávez, Chávez, De Jonge, De La Vega-Beltran, Demarco, Diao, Dirami, Dostmann, Ellsworth, Escoffier, Esteves, Figueiras-Fierro, Gabriel, Gadsby, Hernández-González, Ishiguro, José, Kase, Kujala, Köhn, l'Hoste, Laemmli, Leclerc, Li, Lishko, Lochner, Luconi, López-González, Ma, Melis, Mortimer, Muanprasat, Navarrete, Neill, Nishigaki, Nolan, Okamura, Rode, Schulz, Sheppard, Sorum, Stival, Stival, Tabcharani, Tang, Towbin, Visconti, Visconti, Wennemuth, Wertheimer, Xu, Zeng, Zeng   +63 more
core   +1 more source

Seminal CD38 Enhances Human Sperm Capacitation through Its Interaction with CD31. [PDF]

PLoS ONE, 2015
Human sperm have to undergo a maturational process called capacitation in the female reproductive tract. Capacitation confers upon the sperm an ability to gain hypermotility and undergo acrosome reaction.
Byung-Ju Kim, Dae-Ryoung Park, Tae-Sik Nam, Seo Ho Lee, Uh-Hyun Kim   +4 more
doaj   +1 more source

The tyrosine kinase FER is responsible for the capacitation-associated increase in tyrosine phosphorylation in murine sperm [PDF]

, 2016
Sperm capacitation is required for fertilization. At the molecular level, this process is associated with fast activation of protein kinase A. Downstream of this event, capacitating conditions lead to an increase in tyrosine phosphorylation. The identity
Alvau, Antonio, Battistone, Maria Agustina, Cuasnicu, Patricia Sara, Da Ros, Vanina Gabriela, Darszon, Alberto, De la Vega Beltran, José Luis, Gervasi, Maria Gracia, Greer, Peter, Krapf, Diego, Navarrete, Felipe A., Salicioni, Ana María, Sánchez Cárdenas, Claudia, Visconti, Pablo E., Xu, Xinran   +13 more
core   +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

Progesterone significantly enhances the mobility of boar spermatozoa [PDF]

, 2013
Progesterone released from the cumulus cells of the oocyte causes a number of physiological responses in human sperm cells including hyperactivation, acrosome reaction and chemotaxis. We employed a validated sperm mobility assay, which involves measuring
Adya, Ashok K., Brown, Sean G., Campbell, Johan M., Madamidola, Oladipo, Savage, Anne L., Soriano, Renalyn, Tamhane, Kshitij   +6 more
core   +3 more sources

CaMKIIalpha interacts with multi-PDZ domain protein MUPP1 in spermatozoa and prevents spontaneous acrosomal exocytosis [PDF]

, 2009
The success of acrosomal exocytosis, a complex process with a variety of inter-related steps, relies on the coordinated interaction of participating signaling molecules.
Ackermann, Frauke, Boekhoff, Ingrid, Borth, Heike, Buech, Thomas, Gudermann, Thomas, Zitranski, Nele   +5 more
core   +1 more source

Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation [PDF]

, 2005
The mechanisms involved in the regulation of mammalian sperm motility are not well understood. Calcium ions (Ca(2+)) have been suggested to play a key role in the maintenance of motility; nevertheless, how Ca(2+) modulates this process has not yet been ...
Buffone, Mariano Gabriel, Chertihin, Olga, Herr, John C,, Jha, Kula N., Marin Briggiler, Clara Isabel, Vazquez, Monica Hebe, Visconti, Pablo E.   +6 more
core   +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

Human sperm ion channel (dys)function:implications for fertilization [PDF]

, 2019
BACKGROUND: Intensive research on sperm ion channels has identified members of several ion channel families in both mouse and human sperm. Gene knock-out studies have unequivocally demonstrated the importance of the calcium and potassium conductances in ...
Barratt, Christopher L. R., Brown, Sean G., Martins da Silva, Sarah J., Publicover, Stephen J.   +3 more
core   +4 more sources