Results 91 to 100 of about 18,364 (206)

Epididymosome‐Supplemented Extender Induces Changes in Morpho‐Functional Traits and microRNA Levels of Post‐Thaw Sperm and Improves Embryo Developmental Potential

Molecular Reproduction and Development, Volume 93, Issue 8, August 2026.
ABSTRACT While molecular signature contributes to sperm quality and fertility potential, sperm may lost key molecules during cryopreservation. Since sperm cells are transcriptionally inert and rely on interactions with epididymosomes (epEVs) to acquire molecules, herein, we investigated the effects of the addition of epEVs to the cryopreservation ...
Laura Gabrielli Haupenthal, Maria Alice de Almeida, Cibele Maria Prado, Amanda Nespolo Silva, Gabriela Melendes Schneider, Paola Maria da Silva Rosa, Flávio Vieira Meirelles, Juliano Coelho da Silveira, Felipe Perecin, Maíra Bianchi Rodrigues Alves   +9 more
wiley   +1 more source

Mussel Spermatozoa Express a Specific Isoform of the Catalytic Subunit of cAMP‐Dependent Protein Kinase

Molecular Reproduction and Development, Volume 93, Issue 8, August 2026.
ABSTRACT cAMP‐dependent protein kinase (PKA) plays a central role in regulating sperm motility in both invertebrates and mammals. The sea mussel Mytilus galloprovincialis provides a valuable model for investigating the molecular mechanisms underlying gamete activation in externally fertilizing organisms.
Izaskun Ibarguren, Saskia‐Camille Flament‐Simon, Ana P. Losada, Susana. B. Bravo, José Antonio Villamarín   +4 more
wiley   +1 more source

Elevated LncRNA LINC00966 Suppresses PDE2A to Impair Sperm Motility in Asthenozoospermia

FASEB BioAdvances, Volume 8, Issue 8, August 2026.
This study identifies LINC00966 as an upregulated lncRNA in asthenozoospermia associated with reduced sperm quality. Linc00966 suppresses Pde2a, disrupts cGMP signaling, and promotes oxidative stress, thereby impairing spermatogenic cell viability and migration.
Bingrou Guo, Junyi Ke, Hanran Mai, Ting Zhang, Zhaojin Lu, Zilin Zheng, Jieyi Luo, Yifan Zhang, Mei Yan, Shuo Yang, Yanxia Qu, Fan Jiang, Xiaoping Liu, Hao Chen, Liandong Zuo   +14 more
wiley   +1 more source

Small GTPases in Acrosomal Exocytosis

, 2015
Regulated exocytosis employs a conserved molecular machinery in all secretory cells. Soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) and Rab superfamilies are members of this machinery. Rab proteins are small GTPases that organize membrane microdomains on organelles by recruiting specific effectors that strongly influence ...
Bustos, Matias Alberto, Lucchesi, Ornella, Ruete, María Celeste, Mayorga, Luis Segundo, Tomes, Claudia Nora   +4 more
openaire   +4 more sources

Modificación de la estructura espermática de la jaiba Cancer setosus (Molina, 1782) (Decapoda: Brachyura) durante su reacción acrosomal inducida Modifícation of the spermatic structure of the crab Cancer setosus (Molina, 1782) (Decapoda: Brachyura) during induced acrosomal reaction

Latin American Journal of Aquatic Research, 2011
El espermatozoide de Cancer setosus está compuesto de un acrosoma esférico y un núcleo en forma de copa que rodea la mitad basal del acrosoma que se ensancha en la zona ecuatorial del acrosoma.
Merari Goldstein, Enrique Dupré
doaj  

Evaluation of Oxidative Profiling in Semen Fractions and Its Relationship With Sperm Function in Kangal Akkaraman Rams

Reproduction in Domestic Animals, Volume 61, Issue 8, August 2026.
ABSTRACT The determination of sperm oxidative stress provides significant information related to semen quality. Most studies investigate oxidative stress markers only at the level of seminal plasma, but this approach may provide an incomplete overview of the oxidative status of semen.
Abdulkadir Kaya, Omer Varisli, Ali Senol, Haceli Ocal, Hamide Taskin, Bora Ozarslan   +5 more
wiley   +1 more source

acrosome

Citation: 'acrosome' in the IUPAC Compendium of Chemical Terminology, 5th ed.; International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.10333 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage
openaire   +1 more source

Editorial: Fertilization in the spotlight: Dynamics and mechanisms of sperm-egg interaction

Frontiers in Cell and Developmental Biology, 2022
Enrica Bianchi, Maria Jimenez-Movilla, Amber R. Krauchunas   +2 more
doaj   +1 more source

Protease activity involvement in the passage of mammalian sperm through the zona pellucida

Biological Research, 2011
The interaction between acrosome-reacted sperm and zona pellucida proteins is not yet fully understood. Serine protease acrosin and its zymogen proacrosin have been proposed to fulfill this function due to their capacity to bind zona pellucida ...
Ricardo D Moreno, Andrea Laserre A, Claudio Barros   +2 more
doaj  

Effects of Kaempferol Supplementation on the Cryopreservation Quality of Semen from Yuansheng Aite Dairy Rams. [PDF]

Antioxidants (Basel)
Wang G, Han J, Jia S, Fan S, Zhu Z, Guo S, Ahmad N, Zhang B, Song Y, Zhang L.   +9 more
europepmc   +1 more source