Results 51 to 60 of about 512 (91)

Influence of Cryopreservation on the Acrosome Reaction in Hucul Stallion Spermatozoa

Animals
The Hucul horse is a Polish primitive breed with a small population size, which highlights the importance of preserving the genetic resources. The cryopreservation of semen is essential for creating gene banks, but its effect on the acrosome reaction in ...
Monika Bugno-Poniewierska, Monika Bielecka, Natalia Pietras, Barbara Kij-Mitka, Zenon Podstawski, Bogusława Długosz   +5 more
doaj   +1 more source

Capacitation of mouse sperm is modulated by gamma-aminobutyric acid (GABA) concentration

The Journal of Reproduction and Development, 2019
In mammals, ejaculated sperm acquire their fertilizing ability during migration through the female reproductive tract, which secretes several factors that contribute to sperm capacitation.
Shouhei KURATA, Yuuki HIRADATE, Kohei UMEZU, Kenshiro HARA, Kentaro TANEMURA   +4 more
doaj   +1 more source

In Vitro Sperm–Epididymosomes Interaction Immediately Before Fertilization Changes Sperm Fertility Potential

Andrology, EarlyView.
ABSTRACT Background Sperm acquire fertility ability during epididymal maturation mainly in the epididymal caput and corpus, and once matured, are stored in the epididymal cauda. During storage, interactions with cauda epididymosomes (epEVs) may influence sperm fertility potential; however, the role of such interactions on sperm fertility remains ...
Maíra Bianchi Rodrigues Alves, Maria Alice de Almeida, Ana Beatriz Bossois Moura, Laura Gabrielli Haupenthal, Raissa Braido Rangel, Flávio Vieira Meirelles, Juliano Coelho da Silveira, Felipe Perecin   +7 more
wiley   +1 more source

Possible Role of N-Methyl-D-Aspartate Glutamate Receptors in The Induction of Acrosome Reaction in Human Sperm [PDF]

Cell Journal
Objective: Acrosome reaction is a receptor and Ca2+-dependent process. N-Methyl-D- aspartate (NMDA) glutamatereceptors are expressed in the human sperm and are involved in the Ca2+ influx.
Hamid Reza Momeni, Elham Farjad, Abolghasem Naiemi, Tahereh Etemadi, Mohammad Hussein Abnosi, Niloufar Darbandi   +5 more
doaj   +1 more source

Loss‐of‐Function Variants in CCDC189 Cause Human Oligoasthenoteratozoospermia by Disrupting Sperm Flagellar and Acrosomal Architecture

Andrology, EarlyView.
ABSTRACT Background Oligoasthenoteratozoospermia (OAT), characterized by reduced sperm count, impaired motility, and abnormal morphology, is a major cause of male infertility with substantial genetic heterogeneity. However, the underlying genetic etiology remains unresolved in a large proportion of affected individuals.
Jianteng Zhou, Ghulam Mustafa, Tingting Lin, Jingwei Ye, Huan Zhang, Hanwei Jiang, Kexin Yang, Guoning Huang, Qinghua Shi   +8 more
wiley   +1 more source

Acrosome reaction in morphologically different types of human spermatozoa

Zdravniški Vestnik, 2011
Background: The aim of our study was to ascertain if the acrosome functionality differs between various morphological types of spermatozoa in human. Methods: Fourteen ejaculates were resuspended in the culture medium with the aim to wash the spermatozoa ...
Mojca Čižek Sajko, Borut Kovačič, Veljko Vlaisavljević   +2 more
doaj  

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

TMEM16A chloride channels in the female reproductive tract and their role in normal and dysfunctional pregnancy and labour

The Journal of Physiology, EarlyView.
Abstract figure legend TMEM16A plays a pivotal role in setting the duration of the action potential plateau in human uterine smooth muscle. An increase in TMEM16A expression in labour underpins a lengthening of the plateau and this provides time for the contraction to become larger and longer, important for timely successful labour.
Helena C. Parkington, Harold A. Coleman, Penelope M. Sheehan, Shaun P. Brennecke, Marianne Tare   +4 more
wiley   +1 more source

Exploring the Impact of Polystyrene Microplastic Beads on Male Gonads of the Marine Mussel, Mytilus galloprovincialis

Environmental Toxicology, Volume 41, Issue 7, Page 379-394, July 2026.
ABSTRACT Plastic, with its remarkable versatility and numerous applications, has greatly benefited humanity. However, its extreme resistance to natural degradation means it persists in the environment for long periods, causing global environmental problems.
Teresa Chianese, Mariachiara Galati, Tiziana Cappello, Maria Maisano, Gennaro Lettieri, Carmela Marinaro, Marina Piscopo, Gianluca Fasciolo, Carlos Gravato, Gaetana Napolitano, Giulia Paolella, Annamaria Locascio, Rosaria Scudiero, Luigi Rosati   +13 more
wiley   +1 more source

Prostasome-like vesicles stimulate acrosome reaction of pig spermatozoa

Reproductive Biology and Endocrinology, 2008
Background The presence of small membranous particles characterizes the male genital fluids of different mammalian species. The influence of semen vesicles, denominated prostasomes, on sperm functional properties has been well documented in humans, but ...
Marcianò Vito, Siciliano Laura, Carpino Amalia   +2 more
doaj   +1 more source