Results 81 to 90 of about 21,661 (226)

The Spermatophore in Glossina morsitans morsitans: Insights into Male Contributions to Reproduction. [PDF]

, 2016
Male Seminal Fluid Proteins (SFPs) transferred during copulation modulate female reproductive physiology and behavior, impacting sperm storage/use, ovulation, oviposition, and remating receptivity.
Abd-Alla, Adly MM, Aksoy, Emre, Aksoy, Serap, Attardo, Geoffrey M, Benoit, Joshua B, Malacrida, Anna R, Michalkova, Veronika, Scolari, Francesca, Takac, Peter   +8 more
core   +2 more sources

Pig Seminal Plasma Extracellular Vesicles Enhance Motility During Preservation of Epididymal Spermatozoa but Impair Capacitation and IVF Parameters

Andrology, EarlyView.
ABSTRACT Background Extracellular vesicles (EVs) produced by accessory sex glands play a key role in sperm functionality, influencing motility, viability, acrosome integrity, metabolic activity, and capacitation. Most studies on the effects of EVs on spermatozoa have focused on ejaculated spermatozoa, which have already been exposed to their own native
Ana Moya‐Fernández, Santa María Toledo‐Guardiola, Peter Silke, Sergio Navarro‐Serna, Carmen Matás   +4 more
wiley   +1 more source

Cyclic Nucleotide-Specific Optogenetics Highlights Compartmentalization of the Sperm Flagellum into cAMP Microdomains

Cells, 2019
Inside the female genital tract, mammalian sperm undergo a maturation process called capacitation, which primes the sperm to navigate across the oviduct and fertilize the egg.
Diana N. Raju, Jan N. Hansen, Sebastian Rassmann, Birthe Stüven, Jan F. Jikeli, Timo Strünker, Heinz G. Körschen, Andreas Möglich, Dagmar Wachten   +8 more
doaj   +1 more source

The ABCA1 blocking agent probucol decreases capacitation in ejaculated dog spermatozoa

Acta Veterinaria Scandinavica, 2020
Background The ATP binding cassette (ABC) transporters participate in the cholesterol and phospholipid transport within and through cell membranes of many cells including spermatozoa. Cholesterol efflux is important for capacitation of spermatozoa. ABCA1
Sabine Schäfer-Somi, Sven Budik
doaj   +1 more source

Sperm trajectories form chiral ribbons. [PDF]

, 2013
We report the discovery of an entirely new three-dimensional (3D) swimming pattern observed in human and horse sperms. This motion is in the form of 'chiral ribbons', where the planar swing of the sperm head occurs on an osculating plane creating in some
Choi, Inkyum, Feng, Jiawen, Huang, Kalvin, McLeod, Euan, Ozcan, Aydogan, Su, Ting-Wei   +5 more
core   +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

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

A comparative study of capacitation-mediated changes in whole mouse sperm proteome

Animal Cells and Systems
Mammalian spermatozoa acquire fertilizing ability in response to environmental factors enriched in the female reproductive tract, a process called capacitation.
Jae Yeon Hwang
doaj   +1 more source

Cryoprotectant-free vitrification of human spermatozoa in new artificial seminal fluid [PDF]

, 2016
Vitrification is a new method that has been recently introduced in Assisted Reproduction Technique programs. The aim of this study was to design a new medium similar to normal human seminal fluid (SF), formulation artificial seminal fluid (ASF), and to ...
Agha Rahimi, A., Khalili, M. A., MIGLIETTA, SELENIA, Moradi, A., NOTTOLA, Stefania Annarita   +4 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