Results 91 to 100 of about 54,668 (320)

A genetic basis for a postmeiotic X versus Y chromosome intragenomic conflict in the mouse. [PDF]

, 2012
Intragenomic conflicts arise when a genetic element favours its own transmission to the detriment of others. Conflicts over sex chromosome transmission are expected to have influenced genome structure, gene regulation, and speciation.
Affara, Nabeel A., Burgoyne, Paul S., Cocquet, Julie, Ellis, Peter J.I., Mahadevaiah, Shantha K., Vaiman, Daniel   +5 more
core   +4 more sources

Peroxiredoxin 4 Involved in Spermatogenesis by Affecting Oxidative Stress and Ferroptosis

Andrology, EarlyView.
ABSTRACT Background The main functions of testes are sperm production and androgen secretion in testicular befitting microenvironment. Excessive level of the reactive oxygen species (ROS) from metabolism and cellular events can lead to oxidative stress (OS) and ferroptosis, which injure the functions of mitochondria and endoplasmic reticulum (ER) of ...
Shuning Yuan, Nini Wei, Weiwei Ma, Mengting Hu, Bei Zhang, Li Gao, Chao Gao, Xiaoyu Yang, Yan Meng, Jiayin Liu, Yugui Cui   +10 more
wiley   +1 more source

Functional characterization and phenotyping of RAB2A and Lactadherin/MFGE8 as boar sperm zona pellucida binding proteins

Frontiers in Cell and Developmental Biology
Mammalian fertilization begins with the species-specific binding of spermatozoa to the oocyte’s zona pellucida (ZP), a process mediated by multiple surface proteins forming a functional receptor complex.
Natalie Zelenkova, Veronika Kraus, Lukas Ded, Daniela Spevakova, Lucie Sadilkova, Michaela Frolikova, Aneta Pilsova, Zuzana Pilsova, Barbora Klusackova, Ondrej Simonik, Eva Chmelikova, Tereza Krejcova, Michal Zigo, Peter Sutovsky, Peter Sutovsky, Marketa Sedmikova, Katerina Komrskova, Katerina Komrskova, Pavla Postlerova, Pavla Postlerova   +19 more
doaj   +1 more source

Chemotaxis of Arbacia punctulata spermatozoa to resact, a peptide from the egg jelly layer [PDF]

, 1985
Resact, a peptide of known sequence isolated from the jelly layer of Arbacia punctulata eggs, is a potent chemoattractant for A. punctulata spermatozoa. The chemotactic response is concentration dependent, is abolished by pretreatment of the spermatozoa ...
Brokaw, Charles J., Garbers, David L., Vacquier, Victor D., Ward, Gary E.   +3 more
core   +3 more sources

Testis‐Enriched F‐Box Protein FBXO39 Is Important for Spermiogenesis and Male Fertility in Mice

Andrology, EarlyView.
ABSTRACT Background The SCF (Skp–Cullin–F‐box) complex is a major class of E3 ubiquitin ligases. F‐box proteins constitute the SCF complex and play a critical role in recognizing substrates for ubiquitination. In mice, several F‐box proteins, including FBXO36 and FBXO39, are predominantly expressed in testes.
Yuki Kaneda, Haruhiko Miyata, Masahito Ikawa   +2 more
wiley   +1 more source

Mouse Sperm Membrane Potential Hyperpolarization Is Necessary and Sufficient to Prepare Sperm for the Acrosome Reaction*

Journal of Biological Chemistry, 2012
Background: Sperm capacitation, a process associated with phosphorylation and membrane potential changes, is required for acrosome reaction and fertilization.
J. L. De la Vega‐Beltrán, C. Sánchez-Cárdenas, D. Krapf, E. Hernández-González, E. Wertheimer, C. Treviño, P. Visconti, A. Darszon   +7 more
semanticscholar   +1 more source

Utilização de extrato de própolis verde no resfriamento de sêmen equino [PDF]

, 2014
Seminal cooling aims to prolong spermatic lifespan and fertilizing capacity due to reduction in energy metabolism of spermatozoa, providing enough period for transportation from the stallion to the mare.
Santos, Fernanda Carlini Cunha dos
core   +1 more source

Sperm mobility: mechanisms of fertilizing efficiency, genetic variation and phenotypic relationship with male status in the domestic fowl, Gallus gallus domesticus [PDF]

, 2002
When females are sexually promiscuous, sexual selection continues after insemination through sperm competition and cryptic female choice, and male traits conveying an advantage in competitive fertilization are selected for. Although individual male and
Allen J Feltmann, David P Froman, Hector Castillo-Juarez, Pizzari T., Sullivan M. S., Tim R Birkhead, Tommaso Pizzari   +6 more
core   +2 more sources

Improvement of Mouse Spermatozoa Freezing at ‐80°C With Ascorbic Acid 2‐Glucoside at Thawing Phase

Andrology, EarlyView.
ABSTRACT Background Sperm cryopreservation is the most common method to maintain a great number of mutant mouse lines. However, the use of liquid nitrogen (LN2) for freezing presents considerable problems in terms of cost, safety, and accessibility. For this reason, the storage of semen samples at ‐80° in ultra‐freezers has been increasingly used in ...
Alessia Paradiso, Renata Paoletti, Simone Cassetti, Nicola Bernabò, Barbara Barboni, Marcello Raspa, Ferdinando Scavizzi   +6 more
wiley   +1 more source

Heat Sensing Receptor TRPV1 Is a Mediator of Thermotaxis in Human Spermatozoa [PDF]

, 2016
The molecular bases of sperm thermotaxis, the temperature-oriented cell motility, are currently under investigation. Thermal perception relies on a subclass of the transient receptor potential [TRP] channels, whose member TRPV1 is acknowledged as the ...
\u160abovi\u107, I, DE TONI, Luca, DI NISIO, Andrea, Filippi, Andrea, Foresta, Carlo, Garolla, Andrea, Magagna, S, Menegazzo, M, Rocca, MARIA SANTA, Scattolini, Valentina   +9 more
core   +3 more sources