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Round‐Headed Spermatozoa: A Model to study the Role of the Acrosome in early events of Gamete Interaction: Rundkopfspermatozoen: Ein Modell zum Studium der Rolle des Akrosoms
(1990)
Summary: Gamete interactions in mouse involves at least two steps: the first is the interaction of a spermatozoa receptor located in the plasma membrane and ZP3, a zona pellucida (ZP) glycoprotein. ZP3 also can induce the ...
Fetal outcome among pregnancies in natural family planning acceptors: An international cohort study
(1991)
This international, multicenter, prospective cohort study examines the outcome of pregnancies associated with aging gametes. Comparing pregnancies conceived at or near the peak mucus phase with those occurring before or ...
Characterization of the functional domains of boar acrosin involved in nonenzymatic binding to homologous zona pellucida glycoproteins
(1998)
During the first steps of the gamete interaction, the proacrosin/acrosin system seems to play a crucial role in the secondary binding, holding acrosome-reacted spermatozoa during their passage through the zona pellucida. ...
Functional hermaphrodite gonad in Fissurella crassa (Mollusca: Fissurellidae) Hermafroditismo funcional de la gónada de Fissurella crassa (Mollusca: Fissurellidae)
(2009)
The coast of the Southeastern Pacific is the habitat for 13 species of described keyhole limpets of the subgenus Fissurella Brugière. In these species sexual dimorphism does not exist, the animals are dioicos, the sex is ...
A scanning electron microscopy study of frozen/thawed Dog sperm during in Vitro gamete interaction
(2009)
The aim of this work was to study the effects of cryopreservation on the binding and penetration of dog spermatozoa to the zona pellucida (ZP) by scanning electron microscopy (SEM). The sperm-rich fraction of six ejaculates ...
Sertoli cell-mediated differentiation of bovine fetal mesenchymal stem cells into germ cell lineage using an in vitro co-culture system
(Elsevier Inc., 2019)
In vitro gamete derivation based on differentiation of germ cells (GC) from stem cells has emerged as a potential new strategy for the treatment of male infertility. This technology also has potential applications in animal ...
Embryo Mitochondrial DNA Depletion Is Reversed During Early Embryogenesis in Cattle
(SOC STUDY REPRODUCTION, 2010)
The extensive replication of mitochondria during oogenesis and the wide variability in mitochondrial DNA ( mtDNA) copy numbers present in fully grown oocytes indicate that mtDNA amount may play an important role during ...
Influence of growth differentiation factor 9 and bone morphogenetic protein 15 on in vitro maturation of canine oocytes
(Blackwell Publishing Ltd, 2019)
© 2018 Blackwell Verlag GmbH Growth differentiation factor 9 (GDF-9) and bone morphogenetic protein 15 (BMP-15) have pivotal roles in oocyte development in many species, therefore the aim was to investigate these factors ...
Aneuploidy in spermatids of Robertsonian (Rb) chromosome heterozygous mice
(Kluwer Academic Publishers, 2014)
© 2014, The Author(s). Rb translocations are chromosomal rearrangements frequently found in natural populations of the house mouse Mus musculus domesticus. The standard diploid karyotype of the house mouse consisting of ...
Stem cells on regenerative and reproductive science in domestic animals
(Springer, 2018-02-01)
Stem cells are undifferentiated and self-renewable cells that present new possibilities for both regenerative medicine and the understanding of early mammalian development. Adult multipotent stem cells are already widely ...