Results 81 to 90 of about 17,404 (221)

Binding of Sperm to the Zona Pellucida Mediated by Sperm Carbohydrate-Binding Proteins is not Species-Specific in Vitro between Pigs and Cattle

open access: yesBiomolecules, 2013
Carbohydrates are candidates for the basis of species-selective interaction of gametes during mammalian fertilization. In this study, we sought to clarify the roles of sugar residues in the species-selective, sperm–oocyte interaction in pigs and cattle ...
Minoru Nakano   +10 more
doaj   +1 more source

Reactive Oxygen Species‐Induced Damage in Cryopreserved Bovine Sperm: Mitigation Strategies

open access: yesVeterinary Medicine and Science, Volume 12, Issue 4, July 2026.
Cryopreservation of bovine sperm results in overproduction of ROS due to osmotic pressure variations, ice crystals and dysfunction of mitochondria, which causes lipid peroxidation, fragmentation of DNA, protein damage and ultimately decline of post‐thaw sperm quality.
Mst. Mahomudha Akhtar   +4 more
wiley   +1 more source

The influence of solubilized porcine zona pellucida protein on the binding capacity of human spermatozoa [PDF]

open access: yes, 1992
The acrosome reaction, sperm-zona pellucida binding, sperm-oolemma binding/fusion and subsequent fertilization are known to be influenced by homologous as well as heterologous follicular fluid and zona pellucida protein.
Kruger T.F.   +4 more
core  

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

open access: yesAndrology, Volume 14, Issue 5, Page 1249-1260, July 2026.
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   +4 more
wiley   +1 more source

Characterization of the complex carbohydrates in the zona pellucida of mammalian oocytes using lectin histochemistry [PDF]

open access: yes, 1996
The objective of this study was to characterize the glycoconjugates present in the zona pellucida of the follicular oocytes in sheep, goats and pigs. The zona pellucida was stained with periodic acid-Schiff, low iron diamine, high iron diamine, and nine ...
Parillo F   +3 more
core   +3 more sources

Oocytes with a dark zona pellucida demonstrate lower fertilization, implantation and clinical pregnancy rates in IVF/ICSI cycles.

open access: yesPLoS ONE, 2014
The morphological assessment of oocytes is important for embryologists to identify and select MII oocytes in IVF/ICSI cycles. Dysmorphism of oocytes decreases viability and the developmental potential of oocytes as well as the clinical pregnancy rate ...
Wei Shi   +9 more
doaj   +1 more source

Proteolytic remodelling of the extracellular matrix by pericytes

open access: yesThe FEBS Journal, Volume 293, Issue 13, Page 3899-3953, July 2026.
Pericytes are specialised perivascular cells intimately connected with endothelial cells and essential for the maintenance of vascular beds. They contribute to the formation and remodelling of the extracellular matrix by actively secreting proteases and protease inhibitors.
Tina Burkhard   +4 more
wiley   +1 more source

Cytochrome P450 1a (CYP1A)‐Knockout Javanese Medaka Fish Exhibit Diabetic Traits and Reduced Reproductive Capacity

open access: yesThe FASEB Journal, Volume 40, Issue 12, 30 June 2026.
Analyses of cytochrome P450 1a (CYP1A)‐knockout (KO) Javanese medaka (Oryzias javanicus) revealed that CYP1A is involved in glucose regulation and reproduction. In the KO fish, significant increases in hepatic transcripts of insulin, glucagon, and somatostatin genes, as well as elevated blood glucose, liver mass, and liver triglyceride levels ...
Suhaila Rusni   +10 more
wiley   +1 more source

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, Volume 16, Issue 6, Page 1102-1114, June 2026.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

The embryological characteristics and clinical outcomes of oocytes with indented zona pellucida

open access: yesJournal of Obstetrics and Gynaecology
Background Our study aimed to investigate the embryological characteristics and clinical outcomes of oocytes with indented zona pellucida (iZP).Methods Cases with all oocytes containing iZP were compared with subjects whose oocytes presented ...
Jie Lin   +6 more
doaj   +1 more source

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