Results 71 to 80 of about 29,382 (227)

Expression pattern of glycoconjugates in the Bidderian and ovarian follicles of the Brazilian toad Bufo ictericus analyzed by lectin histochemistry

Brazilian Journal of Biology
The Bidder's organ and ovary of the Brazilian toad Bufo ictericus were studied by light microscopy, using hematoxylin-eosin (HE) and periodic acid Schiff (PAS) staining.
C. F. Farias, R. A. Azevedo, L. Brito-Gitirana   +2 more
doaj   +1 more source

Infertility due to lack of zona pellucida caused by a compound heterozygous mutation in ZP1 gene

Reproductive and Developmental Medicine, 2018
Lack of the zona pellucida (ZP) is one of the manifestations of an oocyte maturation disorder. In recent years, genetic factors have attracted much attention as a possible cause of ZP anomalies.
Zheng Zhang, Tao Shangguan, Yu-Yan Li, Wei He   +3 more
doaj   +1 more source

Improved fertilization and implantation rates after non-touch zona pellucida microdrilling of mouse oocytes with a 1.48 μm diode laser beam [PDF]

, 2017
The safety of microdrilling the zona pellucida of moose oocytes with a 1.48 μm diode laser has been investigated by determining the ability of mouse oocytes to fertilize in vitro and develop in vivo.
Delacréaz, G., Germond, M., Hornung, J.P., Nocera, D., Pedrazzini, T., Rink, K., Senn, A.   +6 more
core  

Genome Expansion of ZPB1(a) and ZPC1(a) in Basal Species or Liver Expression of ZPB1a and ZPC1aa in Advanced Species, Two Different Strategies to Ensure Sufficient ZP Synthesis in Teleosts

Integrative Zoology, EarlyView.
We found that teleosts employed two different strategies to ensure sufficient ZP (zona pellucida) synthesis: expansion of ZPB1(a) and ZPC1(a) in basal species or liver expression of ZPB1a and ZPC1aa in advanced species. The N‐terminus of expanded ZPB1(a) or ZPC1(a) and liver‐expressed ZPB1a contains repeated units or low‐complexity regions to form ...
Tian Gao, Suying Ma, Shiyi Zhang, Fan Bai, Lingyao Gan, Wenjing Tao, Feilong Wang, Deshou Wang, Lina Sun   +8 more
wiley   +1 more source

Effects of human menopausal gonadotropin on zona pellucida and pregnancy outcomes of ovarian stimulation protocols

Iranian Journal of Reproductive Medicine, 2015
Background: Human menopausal gonadotropin (hMG) has contributed many improvements to human assisted reproduction. However, effects of hMG on oocyte development and clinical results remain controversial. Objective: This study was conducted to investigate
Bing He, Cheng Junping , Huang Li, Tan Weihong , Xue Lintao , Wang Shikai   +5 more
doaj  

Human fertilization: epididymal hCRISP1 mediates sperm zona pellucida binding through its interaction with ZP3 [PDF]

, 2014
Human epididymal CRISP1 (hCRISP1) associates with sperm during maturation and participates in gamete fusion through egg complementary sites. Its homology with both rodent epididymal CRISP1 and CRISP4 reported to participate in the previous stage of sperm
Battistone, Maria Agustina, Blaquier, J. A., Busso, Dolores, Chirinos, M., Cuasnicu, Patricia Sara, Larrea, F., Maldera, Julieta Antonella, Raffo, F. G. E., Weigel Muñoz, Mariana   +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

Hyperactivation and Tyrosine Phosphorylation of Cryopreserved Stallion Spermatozoa in Relation to Conventional In Vitro Fertilization Blastocyst Production

Andrology, EarlyView.
ABSTRACT Background Challenges in establishing clinical conventional in vitro fertilization (IVF) in horses include variation in sperm and oocyte quality, which can be affected by mare age. Extended preincubation of stallion spermatozoa has resulted in successful IVF.
Raul A. Gonzalez‐Castro, Carolina C. Porflidt, Alexandra L. Ash, Jacobo S. Rodriguez, Perla D. Fleury, Edward L. Squires, Elaine M. Carnevale   +6 more
wiley   +1 more source

Phosphatase PPP1CC Regulates the First Lineage Segregation by GAS5 in Mouse Preimplantation Embryos

Cell Proliferation, EarlyView.
Subcortical GAS5 directs PPP1CC phosphatase spatiotemporal positioning during mouse morula‐blastocyst transition, controlling YAP dephosphorylation to drive first embryonic lineage specification. ABSTRACT The transcriptional effector of the Hippo signalling pathway, YAP, regulates the first lineage specification in mouse preimplantation embryos ...
Jianwu Wang, Yan Zhang, Laijin Wu, Hongshuang Xie, Guang Yang, Yiwei Zhang, Cheng Huang, Shanyi Chou, Xuehan Li, Zhonghua Liu, Jiaqiang Wang   +10 more
wiley   +1 more source

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

Biomolecules, 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, Satoshi Akagi, Masaya Geshi, Kazunori Toma, Reiko Sato, Reiichiro Suzuki, Saeko Kanai-Kitayama, Yasuomi Uchida, Kazuhiro Kikuchi, Kazuya Takahashi, Naoto Yonezawa   +10 more
doaj   +1 more source