Results 71 to 80 of about 37,794 (252)
Cells, 2020 Background: The central channel of the nuclear pore complex plays an important role in the selective transport of proteins between the nucleus and cytoplasm.
Ryotaro Okazaki +2 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 +2 more
wiley +1 more source
Male meiosis in wild-type and in Atmcm8. [PDF]
, 2013 Male meiosis is shown (A–E) in wild type and (F–O) in Atmcm8. Chromosome spreads at (A and F) pachytene, (B and G) metaphase I, (C and H–K) end of anaphase I, (D and L) metaphase II, (E and M–O) anaphase II, using DAPI staining.
Christine Horlow (106244) +6 more
core +1 more source
Male meiotic spindle features that efficiently segregate paired and lagging chromosomes
eLife, 2020 Chromosome segregation during male meiosis is tailored to rapidly generate multitudes of sperm. Little is known about mechanisms that efficiently partition chromosomes to produce sperm.
Gunar Fabig +9 more
doaj +1 more source
Biological Reviews, EarlyView.ABSTRACT Heat stress (HS) is an increasing threat to male reproductive health, disrupting spermatogenesis through complex and interdependent cellular responses within the seminiferous epithelium. Although excessive reactive oxygen species (ROS) production is a hallmark of HS, ROS also act as central regulators of cell fate decisions beyond their role ...
Ribrio Ivan Tavares Pereira Batista
wiley +1 more source
Cytoskeleton, EarlyView.ABSTRACT Cooperativity between cytoskeletal proteins is crucial for spatiotemporal coordination in biological processes, like oogenesis. In mammalian and Drosophila oogenesis, proper assembly and function of actin networks require coordination between actin assembly factors Spire and formins, as well as actin‐associated proteins like myosins and Rab ...
Joseph Y. Ong +7 more
wiley +1 more source
Drosophila rae1 is required for male meiosis and spermatogenesis [PDF]
Journal of Cell Science, 2013 Previous studies of RAE1, a conserved WD-40 protein, in S. pombe and the mouse revealed a role in mRNA export and cell cycle progression in mitotic cells. Studies of RAE1 in Drosophila showed that the protein localizes to the nuclear envelope and is required for progression through the G1 phase of the cell cycle but not RNA export in tissue culture ...
Volpi, S. +4 more
openaire +3 more sources
Embryonic development of the Mediterranean starfish Hacelia attenuata
Developmental Dynamics, EarlyView.Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo +3 more
wiley +1 more source
Chromosome segregation and recombination in human meiosis: Clinical applications and insight into disjunction errors [PDF]
, 2015 Chromosome copy number errors (or aneuploidy) of gametes and embryos occurs in humans more frequently than in any other studied species, with a spectrum of manifestations from implantation failure to affected live births.
Ottolini, Christian Simon +1 more
core
The Dynamics of Homologous Chromosome Pairing during Male Drosophila Meiosis [PDF]
, 2002 Background: Meiotic pairing is essential for the proper orientation of chromosomes at the metaphase plate and their subsequent disjunction during anaphase I.
Vazquez, Julio +2 more
core +1 more source