Results 81 to 90 of about 12,113 (180)

Regulation of Sperm Capacitation and the Acrosome Reaction by PIP 2 and Actin Modulation

Asian Journal of Andrology, 2015
Actin polymerization and development of hyperactivated (HA) motility are two processes that take place during sperm capacitation. Actin polymerization occurs during capacitation and prior to the acrosome reaction, fast F-actin breakdown takes place.
Haim Breitbart, Maya Finkelstein
doaj   +1 more source

Fish Sperm Subpopulations Detection, Separation, and Application: Current State and Trends

Reviews in Aquaculture, Volume 18, Issue 4, September 2026.
Modern advances in sperm biology highlight the necessity of recognising intra‐ejaculate heterogeneity as a central concept for advancing both the fundamental understanding of fertilisation processes and the development of artificial reproduction techniques in fishes. ABSTRACT Sperm subpopulations represent a fundamental manifestation of intra‐ejaculate
Viktoriya Dzyuba, William V. Holt, Borys Dzyuba   +2 more
wiley   +1 more source

Combined Effects of Algae‐Supplemented Feeding Regimes and Water Temperature on Sperm Quality of Common Carp (Cyprinus carpio) Broodstock During Spawning

Aquaculture, Fish and Fisheries, Volume 6, Issue 4, August 2026.
ABSTRACT This exploratory study investigated associations between dietary algae supplementation (1% and 3%) and sperm quality in male common carp (Cyprinus carpio) broodstock during two consecutive spawning seasons under commercial farming conditions. Sperm quality was evaluated using conventional motility and kinetic parameters together with analyses ...
Gergely Bernáth, Borbála Nagy, Enikő Solymosi, Tamás Zsáky, Ákos Koós, Attila Komóczi, Viktor Nagy, Vilmos Pásztor, János Sztanó, János Ladányi, György Lódi, Péter Antal, Tamás Szabó, Tamás Bartucz, Dávid Várkonyi, Zsolt Bajári, István Bartos, Róbert Petényi, Gergely Berecz, Márton Kirchner, Béla Urbányi, Árpád István Harmati, Zoltán Bokor   +22 more
wiley   +1 more source

Industrial Hydrocarbons Exposure Deteriorates Sperm Integrity and Reproductive Function

Journal of Biochemical and Molecular Toxicology, Volume 40, Issue 8, August 2026.
ABSTRACT Occupational exposure to polycyclic aromatic hydrocarbons (PAHs) or metal fumes in the workplace may be detrimental to male fertility. The present study compared sperm concentration, total motility, strict morphology and oxidative stress and SDF levels between 81 men, controls (n = 17) and workers from plastic industry workers (n = 18), steel ...
Madhan Kumar Pichandi, Babujanarthanam Ranganathanan, Doraiah Abilash   +2 more
wiley   +1 more source

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

Acute Dietary Zinc Deficiency Impairs Sperm Motility but Not Gonadal mRNA Methylation in Mice

Molecular Reproduction and Development, Volume 93, Issue 8, August 2026.
Male and female mice were fed a control or zinc‐deficient diet for 6 days. In males, cauda epididymal sperm were analyzed for number, motility, and morphology, and testes were assessed by histology, while m6A mRNA methylation was measured in the testis and liver of males and the ovary and liver of females.
Ngozi O. Ibadin, Francisco J. Diaz
wiley   +1 more source

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

RESEARCH CONCERNING THE INFLUENCE OF CAPACITATION CONDITIONS ON THE QUALITY OF SPERMATOZOA USED FOR IN VITRO FERTILIZATION

Scientific Papers Animal Science and Biotechnologies, 2023
The optimization of capacitation technique is based on the study of the influence factors of this process. Studying the influence of capacitation conditions on boar sperm quality we concentrated our research upon capacitation technique and method.
M. ZĂHAN, V. MICLEA, I. ROMAN, ILEANA MICLEA, ANDREA HETTIG   +4 more
doaj  

A Fluorometric Method for Measurement of Sperm Capacitation

Experimental Biology and Medicine, 1967
SummaryA fluorometric technique for measurement of sperm capacitation is described. Rabbit sperm were labeled with tetracycline HCI (T-HCI) and placed in uteri and oviducts of estrous and pseudopregnant does and in other regions of estrous females.
openaire   +2 more sources