Results 111 to 120 of about 33,341 (304)

A cost for high levels of sperm competition in rodents: Increased sperm DNA fragmentation [PDF]

, 2016
Spermcompetition, a prevalent evolutionary process inwhich the spermatozoa of two or more males compete for the fertilization of the same ovum, leads to morphological and physiological adaptations, including increases in energetic metabolism that may ...
Delbarco-Trillo, Javier, García-Álvarez, Olga, Garde, José Julián, Roldán, Eduardo R. S., Soler, Ana J., Tourmente, Maximiliano   +5 more
core   +1 more source

Effect of platelet-activating factor (PAF) on stallion sperm motility, capacitation and the acrosome reaction [PDF]

, 2003
A. Odeh, John J. Dascanio, Thomas Caceci, James M. Bowen, LA Eng   +4 more
openalex   +1 more source

Seminal Plasma Exosomal miRNA Profiling Reveals hsa‐miR‐7‐5p as a Key Regulator of Sperm Motility in Asthenozoospermia

Andrology, EarlyView.
ABSTRACT Background Asthenozoospermia is a significant contributing factor to male infertility. Accumulating evidence indicates that impaired sperm motility is closely linked to dysregulated microRNA expression during spermatogenesis. Seminal plasma exosomes are enriched with diverse microRNAs, which play pivotal roles in modulating sperm motility, the
Zhi‐Jian Zhu, Meng‐Li Cui, Wen‐Jing Yuan, Jia‐Ning Zhang, Shuo Zhang, Xi‐Qiao Yao, Ruo‐Qing Li, Jin‐Feng Li, En‐Zhong Li   +8 more
wiley   +1 more source

Compartmentalization of distinct cAMP signaling pathways in mammalian sperm. [PDF]

, 2013
Fertilization competence is acquired in the female tract in a process known as capacitation. Capacitation is needed for the activation of motility (e.g. hyperactivation) and to prepare the sperm for an exocytotic process known as acrosome reaction. While
Buck, Jochen, Darszon, Alberto, de la Vega Beltran, José L., Escoffier, Jessica, Haddad, Douglas, Krapf, Dario, Levin, Lonny R., Mager, Jesse, Navarrete, Felipe, Salicioni, Ana M., Sánchez Cárdenas, Claudia, Visconti, Pablo E., Wertheimer Hermitte, Eva Victoria   +12 more
core   +1 more source

Impact of Sorting and Catch Media on Porcine Sperm Motility, Capacitation, and Viability

Andrology, EarlyView.
ABSTRACT Background Fluorescence‐activated cell sorting (FACS) has emerged as a powerful tool for selecting spermatozoa of a desired population of fluorescent biomarkers, offering potential applications in reproductive biology and agriculture. However, concerns remain regarding sorting‐induced physiological alterations that could compromise spermatozoa
Tyler Weide, Juan Steibel, Karl Kerns
wiley   +1 more source

Determination of a Robust Assay for Human Sperm Membrane Potential Analysis

Frontiers in Cell and Developmental Biology, 2019
Mammalian sperm must undergo a complex process called capacitation in order to fertilize the egg. During this process, hyperpolarization of the sperm plasma membrane has been mostly studied in mouse, and associated to its importance in the preparation to
Carolina Baro Graf, Carolina Baro Graf, Carla Ritagliati, Cintia Stival, Paula A. Balestrini, Mariano G. Buffone, Darío Krapf, Darío Krapf   +7 more
doaj   +1 more source

Mechanisms of endothelial cell dysfunction in cystic fibrosis [PDF]

, 2017
Although cystic fibrosis (CF) patients exhibit signs of endothelial perturbation, the functions of the cystic fibrosis conductance regulator (CFTR) in vascular endothelial cells (EC) are poorly defined.
Anile, Marco, Cianci, Eleonora, Del Porto, Paola, Dell'Elba, Giuseppe, Di Silvestre, Sara, Evangelista, Virgilio, Guarnieri, Simone, Lanuti, Paola, Marchisio, Marco, Mari, Veronica C., Mariggiã², Maria A., Moretti, Paolo, Mucilli, Felice, Pandolfi, Assunta, Patruno, Sara, Piccoli, Antonio, Plebani, Roberto, Prioletta, Marco, Recchiuti, Antonio, Romano, Mario, Sacchetti, Silvio, Totani, Licia, Venuta, Federico   +22 more
core   +1 more source

Microfluidic Intracytoplasmic Sperm Injection (MICSI): A Novel Platform for Sperm Isolation, Selection, and Injection Into Oocytes

Andrology, EarlyView.
ABSTRACT Background Infertility is a pressing global health concern, affecting one in six couples worldwide. The failure rate for assisted reproductive technologies (ART) cycles remains at approximately 78%, with limited improvements often attributed to a lack of technological innovation.
Mehran Dabiri, Dale Mark Goss, Steven Alexander Vasilescu, Majid Ebrahimi Warkiani   +3 more
wiley   +1 more source

Capacitation and Induction of the Acrosome Reaction in Bull Spermatozoa With Norepinephrine [PDF]

, 2002
Amy L. Way, Gary J. Killian
openalex   +1 more source

Testicular SIRT1 Loss Reveals an Aging‐Like Proteomic Landscape and Precipitates Reproductive Deterioration

Andrology, EarlyView.
ABSTRACT Background Advanced paternal age is associated with reduced male fertility and testicular dysfunction. Among the molecular regulators involved in aging, SIRT1, a NAD+‐dependent deacetylase, plays a pivotal role in maintaining oxidative balance and cellular homeostasis.
María Iniesta‐Cuerda, Jiřina Havránková, Hedvika Řimnáčová, Jiří Moravec, František Liška, Martin Knytl, Milena Králíčková, Jan Nevoral   +7 more
wiley   +1 more source