Results 101 to 110 of about 98,483 (286)

Implementation of meiosis prophase I programme requires a conserved retinoid-independent stabilizer of meiotic transcripts

open access: yesNature Communications, 2016
Meiosis is a cell division program that produces haploid gametes and is initiated by a retinoic acid-dependent process. Here the authors report that a meiosis-specific protein, MEIOC, is upregulated in a retinoic acid-independent manner and is required ...
Emilie Abby   +12 more
doaj   +1 more source

DNA double strand breaks but not interstrand crosslinks prevent progress through meiosis in fully grown mouse oocytes [PDF]

open access: yes, 2012
There is some interest in how mammalian oocytes respond to different types of DNA damage because of the increasing expectation of fertility preservation in women undergoing chemotherapy.
Jones, Keith T   +19 more
core   +1 more source

Hot and Splicey: Kinesin Isoforms Seek Attention

open access: yesCytoskeleton, EarlyView.
ABSTRACT Kinesins family members (KIFs) are encoded in mammals by approximately 45 genes, which are grouped into 14 families based on structural and functional features. As cells increased in complexity, so too did the demand for specialized kinesin‐mediated processes, including intracellular transport, cytoskeletal organization, and cell division. One
C. Belhadi, M. A. Silverman
wiley   +1 more source

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher   +12 more
wiley   +1 more source

Embryonic development of the Mediterranean starfish Hacelia attenuata

open access: yesDevelopmental 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

Meiosis in a living crane fly spermatocyte [Meiosis II]

open access: yes, 2011
Presents the events of meiosis II in two living spermatocytes obtained from the testis of a crane-fly larva are viewed in polarized light and recorded in this time-lapse sequence beginning at prophase II through telophase II to the near completion of ...
Oldenbourg, Rudolf   +1 more
core   +2 more sources

Protective Effects of Fenugreek and Stevia Extracts on Dexamethasone‐Induced Testicular Damage in a Rat Model

open access: yesFood Safety and Health, EarlyView.
Fenugreek and stevia extracts protect against dexamethasone‐induced testicular damage in male rats by enhancing antioxidant defenses, improving sperm quality, and restoring hormonal balance, highlighting their potential as natural therapeutics for preventing corticosteroid‐induced reproductive toxicity.
Mosab Gad   +3 more
wiley   +1 more source

Meiosis in a living crane fly spermatocyte [Meiosis II]

open access: yes, 2016
Presents the events of meiosis II in two living spermatocytes obtained from the testis of a crane-fly larva are viewed in polarized light and recorded in this time-lapse sequence beginning at prophase II through telophase II to the near completion of ...
Oldenbourg, Rudolf   +1 more
core   +2 more sources

The mitochondrial DNA copy number and ovary‐related reproductive disorders: A bidirectional two‐sample Mendelian randomization study

open access: yesInternational Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 112-120, April 2025.
Abstract Objective In the present study, a bidirectional two‐sample Mendelian randomization approach was utilized to explore potential causal relationships between mitochondrial DNA copy number (mtDNA‐CN) and ovary‐related reproductive disorders (ORRDs), including ovarian dysfunction, ovarian cyst, polycystic ovary syndrome (PCOS), premature ovarian ...
Ke Peng   +4 more
wiley   +1 more source

Apoptosis in mouse fetal and neonatal oocytes during meiotic prophase one [PDF]

open access: yes, 2007
Background The vast majority of oocytes formed in the fetal ovary do not survive beyond birth. Possible reasons for their loss include the elimination of non-viable genetic constitutions arising through meiosis, however, the ...
Geraldine M Hartshorne   +5 more
core   +1 more source

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