Results 51 to 60 of about 17,404 (221)

Sperm morphology and DNA fragmentation after zona pellucida selection

Reproduction and Fertility, 2021
Sperm DNA fragmentation (SDF) and sperm morphological defects can negatively affect ART outcomes. Consequently, there is a need for additional semen processing technique that accounts for sperm DNA status and morphology prior to ICSI.
Rumiana Ganeva, Dimitar Parvanov, Denitsa Velikova, Magdalena Vasileva, Kristina Nikolova, Georgi Stamenov   +5 more
doaj   +1 more source

Oocyte–cumulus cell interaction: a key factor in early embryo development

Biological Reviews, EarlyView.
ABSTRACT The evaluation of oocyte competence is a fundamental step in achieving successful outcomes following assisted reproduction techniques (ART). At present, however, conventional oocyte maturation assessment is carried out by morphological observation, which is a subjective method that does not consider molecular features.
Marc Torres‐Garrido, Marc Yeste, Yentel Mateo‐Otero   +2 more
wiley   +1 more source

Prevention of fertilization by exposure of hamster eggs to soluble acrosin [PDF]

, 1977
Incubation of hamster eggs with trypsin or chymotrypsin, but not with a series of glycosidases or lipases, prevents capacitated spermatozoa from binding to the zona pellucida so that fertilization is prevented (Hartmann & Gwatkin, 1971; Gwatkin ...
L. Wudl, Gwatkin, R. B. L., Wudl, L., E. Fink, Hartree, E. F., E. F. Hartree, Fink, Edwin, R. B. L. Gwatkin   +7 more
core  

Cupulin is a zona pellucida-like domain protein and major component of the cupula from the inner ear. [PDF]

PLoS ONE, 2014
The extracellular membranes of the inner ear are essential constituents to maintain sensory functions, the cupula for sensing torsional movements of the head, the otoconial membrane for sensing linear movements and accelerations like gravity, and the ...
Jens Dernedde, Christoph Weise, Eva-Christina Müller, Akira Hagiwara, Sebastian Bachmann, Mamoru Suzuki, Werner Reutter, Rudolf Tauber, Hans Scherer   +8 more
doaj   +1 more source

Impact of donor mare and stallion identity on the likelihood of pregnancy after transfer of in vitro produced embryos

Equine Veterinary Journal, EarlyView.
Abstract Background The success of in vitro embryo production (IVEP) is influenced by donor mare and stallion. Objectives To determine whether donor mare and stallion influence the pregnancy rate after transfer of in vitro produced (IVP) blastocysts and to identify factors influencing the likelihood of obtaining one or more pregnancies from a single ...
M. Papas, T. A. E. Stout, J. C. M. Vernooij, B. Leemans, L. Arnold, M. M. Beitsma, L. I. Wijnands, M. de Ruijter‐Villani, S. Colleoni, G. Lazzari, C. Galli, A. Claes   +11 more
wiley   +1 more source

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

Mechanical properties of zona pellucida hardening

European Biophysics Journal, 2009
We have investigated the changes in the mechanical properties of the zona pellucida (ZP), a multilayer glycoprotein coat that surrounds mammalian eggs, that occur after the maturation and fertilization process of the bovine oocyte by using atomic force spectroscopy.
Papi, Massimiliano, Brunelli, R., Sylla, L., Parasassi, T., Monaci, M., Maulucci, Giuseppe, Missori, M., Arcovito, G., Ursini, F., De Spirito, Marco   +9 more
openaire   +7 more sources

Zona pellucida antibodies in human sera [PDF]

Reproduction, 1982
Summary. A quantitative indirect immunofluorescent assay developed for the measurement of antibodies produced in rabbits against porcine zonae pellucidae was modified and used to detect autoantibodies specific to human zonae pellucidae.
P L, Nayudu, L E, Freemann, A O, Trounson   +2 more
openaire   +2 more sources

Evaluation of the presence of anti zona pellucida Antibodies is the serum of repeat breeder Holstein dairy cattle [PDF]

Āsīb/shināsī-i Darmāngāhī-i Dāmpizishkī, 2014
This study was conducted to evaluate the presence of anti zona pellucida antibodies in the serum of  repeat breeder Holstein cows in Third station Dairy Cattle Husbandry Agro Industry  in Moghan.
amirali kaveh, hossein nikniyaz
doaj  

Infertility and Immunocontraception based on zona pellucida [PDF]

Reproductive Medicine and Biology, 2013
AbstractThe zona pellucida (ZP) is an extracellular matrix surrounding ovarian oocytes, ovulated eggs and preimplantation embryos. It plays several important roles at different stages of reproduction. Its constituent glycoproteins are expressed specifically in the ovary.
Akiko, Hasegawa, Hiroyuki, Tanaka, Hiroaki, Shibahara   +2 more
openaire   +2 more sources