Results 41 to 50 of about 14,154 (183)

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

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

Adaptive Immunity in Marsupials

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
Comparison of the marsupial and eutherian adaptive immune systems. ABSTRACT Marsupials diverged from eutherian mammals 125–160 million years ago. Although evolutionarily distinct, both groups of mammals can produce complex adaptive immune responses to antigens with several key differences.
Cassandra L. Jol, Hayley J. Stannard, Julie M. Old   +2 more
wiley   +1 more source

Evaluation of Sugar Residues in Zona Pellucida During Ovarian Cycle

پزشکی بالینی ابن سینا, 2003
Glycoconjugates, particulary their sugar side chains, play important roles in development. This investigation was undertaken to examine the chemical nature of components in the zona pellucida possibly related to follicular development.           In this
Mohammad Barbarestani, Seyyed Mohammad Hosseinipanah, Ali Reza Fazel, Mehran Rezei Habibi, Mostafa Hoseini, Mohammad Akbari, Farid Abolhasani, Mir Abbas Mir Abdolvahabi   +7 more
doaj  

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

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

Crossing the barrier or how regulation of ovastacin controls fertilization and translates into clinical phenotypes

iScience
Summary: The zona pellucida, a glycoprotein matrix enveloping the mammalian egg, exerts essential functions during fertilization and early embryonic development. Its safeguard property regulates sperm entry and thus indirectly controls fertility. Limited
Nele von Wiegen, Christian Behl, Hagen Körschgen   +2 more
doaj   +1 more source

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  

The Australian Hydromyine Rodents—Their Interspecific Diversity and Reproductive Biology: A Review

Integrative Zoology, EarlyView.
There are two major groups, the Rattus species and the Hydromyini, in Australia. Clearly, the hydromyine rodents, unlike the Rattus genus, exhibit a diverse array of reproductive biological traits in both males and females, the full evolutionary significance of which has yet to be ascertained.
William G. Breed, Christopher M. Leigh, Eleanor J. Peirce   +2 more
wiley   +1 more source

Human Blastocyst's Zona Pellucida segmentation via boosting ensemble of complementary learning

Informatics in Medicine Unlocked, 2018
Characteristics of Zona Pellucida (ZP), particularly its thickness, is a key indicator of human blastocyst (day-5 embryo) quality. Therefore, ZP segmentation is an important step towards achieving automatic embryo quality assessment.
Reza Moradi Rad, Parvaneh Saeedi, Jason Au, Jon Havelock   +3 more
doaj   +1 more source