Results 1 to 10 of about 72,523 (352)
Biology of Reproduction, 2022 The ovary is the first organ to age in humans with functional decline evident already in women in their early 30s. Reproductive aging is characterized by a decrease in oocyte quantity and quality, which is associated with an increase in infertility ...
Elnur Babayev, Francesca E Duncan
exaly +2 more sources
Nature Communications, 2021 Recognition and fusion between gametes during fertilization is an ancient process. Protein HAP2, recognized as the primordial eukaryotic gamete fusogen, is a structural homolog of viral class II fusion proteins. The mechanisms that regulate HAP2 function,
Jennifer F Pinello +2 more
exaly +2 more sources
Frontiers in Microbiology, 2019 Sexual reproduction is an essential process in the Plasmodium life cycle and a vulnerable step for blocking transmission from the human host to mosquitoes.
Fei Liu +11 more
doaj +2 more sources
International Journal of Molecular Sciences, 2017 Oxidative and nitrosative stress are common problems when handling gametes in vitro. In vitro development in mammalian embryos is highly affected by culture conditions, especially by reactive oxygen species (ROS) and reactive nitrogen species (RNS ...
Pía Loren Reyes +2 more
exaly +2 more sources
Discovery of long‐distance gamete dispersal in a lichen‐forming ascomycete
New Phytologist, 2017 Summary Accurate estimates of gamete and offspring dispersal range are required for the understanding and prediction of spatial population dynamics and species persistence.
Silke Werth +2 more
exaly +2 more sources
Gamete Nuclear Migration in Animals and Plants
Frontiers in Plant Science, 2019 The migration of male and female gamete nuclei to each other in the fertilized egg is a prerequisite for the blending of genetic materials and the initiation of the next generation.
Umma Fatema +5 more
doaj +2 more sources
Low sperm to egg ratio required for successful in vitro fertilization in a pair-spawning teleost, Senegalese sole (Solea senegalensis) [PDF]
Royal Society Open Science, 2021 Cultured Senegalese sole (Solea senegalensis) breeders fail to spawn fertilized eggs. The implantation of large-scale in vitro fertilization protocols, to solve this problem, has been frustrated by low production of poor quality sperm.
Sandra Ramos-Júdez +6 more
doaj +1 more source
The Ancient Gamete Fusogen HAP2 Is a Eukaryotic Class II Fusion Protein
Cell, 2017 Yanjie Liu +2 more
exaly +2 more sources
Evolutionarily conserved sperm factors, DCST1 and DCST2, are required for gamete fusion
eLife, 2021 To trigger gamete fusion, spermatozoa need to activate the molecular machinery in which sperm IZUMO1 and oocyte JUNO (IZUMO1R) interaction plays a critical role in mammals.
Naokazu Inoue, Y. Hagihara, I. Wada
semanticscholar +1 more source
Antioxidants, 2021 Telomere length can be influenced by reactive oxygen species (ROS) generated by lifestyle factors or environmental exposure. We sought to determine whether oxidative stress has an impact on sperm nuclear alterations, especially on chromatin organization ...
Benoit Berby +9 more
doaj +1 more source