Results 41 to 50 of about 13,944 (183)

Dose-response effects of estrogenic mycotoxins (zearalenone, alpha- and beta-zearalenol) on motility, hyperactivation and the acrosome reaction of stallion sperm

Reproductive Biology and Endocrinology, 2011
Background The aim of this study was to investigate the in vitro effects of the Fusarium fungus-derived mycotoxin, zearalenone and its derivatives alpha-zearalenol and beta-zearalenol on motility parameters and the acrosome reaction of stallion sperm ...
Colenbrander Ben, Pizzi Flavia, Sostaric Edita, Gadella Bart M, Stout Tom AE, Filannino Angela, Dell'Aquila Maria, Minervini Fiorenza   +7 more
doaj   +1 more source

CRISPR/Cas9‐mediated Genome‐editing Reveals 10 Testis‐enriched Genes and One Non‐testis‐enriched Gene are Dispensable for Male Fecundity in Mice

Andrology, EarlyView.
ABSTRACT Background More than 1000 genes have been identified as predominantly expressed in the human testis. Advances in gene editing technologies have enabled the rapid and efficient generation of genetically engineered mice. This approach facilitates the screening of genes essential for spermatogenesis by analyzing knockout mouse models.
Yumiao Qiu, Keisuke Shimada, Masahito Ikawa   +2 more
wiley   +1 more source

Seminal Plasma Heparin Binding Proteins Improve Semen Quality by Reducing Oxidative Stress during Cryopreservation of Cattle Bull Semen [PDF]

Asian-Australasian Journal of Animal Sciences, 2016
Heparin binding proteins (HBPs) are produced by accessory glands. These are secreted into the seminal fluid, bind to the spermatozoa at the time of ejaculation, favour capacitation, acrosome reaction, and alter the immune system response toward the sperm.
Maulikkumar Patel, Vinod K. Gandotra, Ranjna S. Cheema, Amrit K. Bansal, Ajeet Kumar   +4 more
doaj   +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

In vitro fertilization using sperm activated by ML‐2–3 isolated from Morinda lucida Bentham leaves

Reproductive Medicine and Biology, 2022
Purpose ML‐2–3 is a novel tetracyclic iridoid derived from Morinda lucida Bentham leaves. This compound has anti‐trypanosomal and anti‐leishmanial effects.
Tomoe Ohta, Takuhiro Uto, Yukihiro Shoyama, Maxwell Mamfe Sakyiamah, Alfred Ampomah Appiah, Hiromitsu Tanaka   +5 more
doaj   +1 more source

Osteopontin enhances sperm capacitation and in vitro fertilization efficiency in boars

Journal of Animal Science and Technology, 2022
In this study, we used more reliable experimental materials and methods to detect the effects of osteopontin (OPN) on boar sperm in vitro capacitation, acrosome reaction, and fertilization efficiency.
Yun Chen, Kai Wang, Shouquan Zhang
doaj   +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

IN VITRO BUFFALO SPERM CAPACITATION WITH SPECIAL ATTENTION TO ACROSOME REACTION AND OOCYTE PENETRATION TEST [PDF]

Assiut Veterinary Medical Journal, 1998
In vitro Buffalo sperm capacitation and assessment of acrosome reaction by using Nigrosin-Eosin-Gemisa(NEG) staining technique were performed. Sperm capacitation was done by TALP capacitation media with different concentrations of heparin.
S.H. Shehata
doaj   +1 more source

Impact of Chemotherapy on Sperm Functional Characteristics in Patients With Testicular Germ Cell Tumours

Andrology, EarlyView.
ABSTRACT Background Testicular germ cell tumours (TGCT) are the most common malignancies among young men and represent a major threat to reproductive health. Both the disease itself and oncological treatments, particularly chemotherapy, can compromise spermatogenesis and semen quality.
Ondrej Sanovec, Ondrej Simonik, Zuzana Kratka, Lukas Ded, Jana Vondrakova, Maryam Qasemi, Barbora Bryndova, Michala Krejci, Daniela Spevakova, Vishma Pratap Sur, Radomir Kren, Tomas Hradec, Pavel Skrobanek, Ludmila Boublikova, Libor Zamecnik, Tomas Buchler, Jiri Neuzil, Pavla Postlerova, Katerina Komrskova   +18 more
wiley   +1 more source

In vitro Induction and Detection of Acrosomal Exocytosis in Human Spermatozoa

Bio-Protocol, 2020
The acrosome reaction is a highly regulated exocytotic event that primes spermatozoa for successful fertilization. Upon induction, acrosomal exocytosis proceeds via a wave of vesiculation that radiates across the sperm head, destabilizing the acrosomal ...
Shenae Cafe, Amanda Anderson, Brett Nixon   +2 more
doaj   +1 more source