Results 51 to 60 of about 62,614 (258)
Advanced Science, EarlyView.SDF‐1 levels decline significantly with maternal aging. Exogenous supplementation restores meiotic spindle morphology, chromosomal alignment, and mitochondrial function while reducing oxidative stress in aged oocytes. Mechanistically, SDF‐1 enhances autophagic activity to clear accumulated stress granules, thereby rescuing fertilization competence and ...
Rui Long +12 more
wiley +1 more source
Effect analysis of improving human sperm quality by a novel distance-temperature-combined selection approach [PDF]
Jichu yixue yu linchuang, 2020 Objective To investigate the effect of improving human sperm quality by novel selection approach based on progressive motility and thermotaxis. Methods The capacitated spermatozoa were placed on one end of strip droplets with different length (2, 5, 8
RAO Jin-peng, QIU Feng, CAI Yi-ting, WEI Kai, JIN Min, JIN Fan
doaj
Advanced Science, EarlyView.Embryonic amoxicillin exposure disrupts multi‐organ development in zebrafish larvae through a lncRNA–metabolic enzyme regulatory axis. PCALRx associates with pyruvate carboxylase, promotes PC protein ubiquitination, and impairs mitochondrial energy metabolism, while vitamin B1 partially restores PC‐centered metabolic function and developmental outcomes.
Yixue Yao +5 more
wiley +1 more source
Advanced Science, EarlyView.Oocytes play crucial roles in maintaining ovarian fate in adult gonochoristic fish. Targeted oocyte ablation with aromatase inhibition triggers the activation of surviving germline stem cells and the transdifferentiation of somatic cells from granoulosa/theca to Sertoli/Leydig lineages, inducing a complete and functional female‐to‐male sex reversal ...
Yang Yang +6 more
wiley +1 more source
New era in sperm selection for ICSI [PDF]
International Journal of Andrology, 2011 SummarySpermatozoa contribute to approximately half of the genome of future progeny, and therefore, have a profound impact on embryo development post‐fertilization. Sperm selection based on viability and normal morphology does not eliminate the chance for DNA damaged spermatozoa to be inseminated and may account for a considerable percentage of failed ...
M H, Nasr-Esfahani +2 more
openaire +2 more sources
Advanced Science, EarlyView.Condensates at synapses organize synaptic vesicles (SVs) and are crucial for efficient neurotransmitter release, yet how RNA contributes to this mesoscale architecture remains poorly understood. Here we uncover that RNA modulates synapsin–driven condensates.
Branislava Rankovic +21 more
wiley +1 more source
BOULE is Essential for the Dynamic Disassembly of Heat Shock Granules in Male Germ Cells
Advanced Science, EarlyView.BOULE orchestrates stress granule disassembly in germ cells via a two‐pronged mechanism: it promotes G3BP1 ubiquitination by upregulating TRIM27, generating a signal for VCP/FAF2 recruitment, and it maintains G3BP1 and FAF2 protein levels. BOULE deficiency disrupts disassembly complex formation, leading to impaired heat shock granule clearance ...
Xin Li +8 more
wiley +1 more source
Sperm Competition Selects for Sperm Quantity and Quality in the Australian Maluridae
PLoS ONE, 2011 When ejaculates from rival males compete for fertilization, there is strong selection for sperm traits that enhance fertilization success. Sperm quantity is one such trait, and numerous studies have demonstrated a positive association between sperm competition and both testes size and the number of sperm available for copulations.
Rowe, Melissah, Pruett-Jones, Stephen
openaire +5 more sources
Sexual selection and the evolution of sperm quality [PDF]
MHR: Basic science of reproductive medicine, 2014 Sperm experience intense and varied selection that dramatically impacts the evolution of sperm quality. Selection acts to ensure that sperm are fertilization-competent and able to overcome the many challenges experienced on their way towards eggs. However, simply being able to fertilize an egg is not enough to ensure male fertility in most species ...
Fitzpatrick, John L, Lüpold, Stefan
openaire +3 more sources
RSF1‐Dependent PAR Turnover Promotes 53BP1 Liquid Condensate Formation at DNA Damage Sites
Advanced Science, EarlyView.At sites of DNA damage, RSF1 recruits PARG to accelerate PAR turnover, triggering a switch from PAR‐driven condensates to 53BP1 condensates. This condensate transition enables p53‐dependent gene transcription and coordinates the DNA damage response.
Yungyeong Heo +10 more
wiley +1 more source