Results 41 to 50 of about 72,523 (352)
Frontiers in Veterinary Science, 2020 Being a model for endangered wild felids, cryopreservation protocols for domestic cat oocytes are under continuous development. Immature vitrified oocytes (VOs) are a valuable resource for fertility preservation programs, but they often degenerate after ...
Martina Colombo +4 more
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Post-copulatory opportunities for sperm competition and cryptic female choice provide no offspring fitness benefits in externally fertilizing salmon [PDF]
Royal Society Open Science, 2016 There is increasing evidence that females can somehow improve their offspring fitness by mating with multiple males, but we understand little about the exact stage(s) at which such benefits are gained.
Alyson J. Lumley +6 more
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ETHICS AND SYNTHETIC GAMETES [PDF]
Bioethics, 2005 ABSTRACTThe recent in vitro derivation of gamete‐like cells from mouse embryonic stem (mES) cells is a major breakthrough and lays down several challenges, both for the further scientific investigation and for the bioethical and biolegal discourse. We refer here to these cells as gamete‐like (sperm‐like or oocyte‐like, respectively), because at present
TESTA, GIUSEPPE, J. Harris
openaire +5 more sources
The male gamete membrane protein DMP9/DAU2 is required for double fertilization in flowering plants
Development, 2018 All flowering plants exhibit a unique type of sexual reproduction called ‘double fertilization’ in which each pollen tube-delivered sperm cell fuses with an egg and a central cell.
Taro Takahashi +7 more
semanticscholar +1 more source
Reproductive Biology and Endocrinology, 2021 Background Maternal metabolic disorders are linked to reduced metabolic health and oocyte quality. Obese women are advised to lose weight before conception to increase pregnancy chances.
Anouk Smits +3 more
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Research advances of gamete and embryo-fetal origins of adult diseases
生物医学转化, 2022 The Development Origins of Health and Disease (DOHaD) theory suggests that adverse environmental factors in early life contribute to the development of chronic disease in adulthood.
Zhao Yiran, Huang Hefeng
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mBio, 2023 Sexual reproduction of the malaria parasites is critical for their transmission to a mosquito vector. Several signaling molecules, such as kinases and phosphatases, are known to regulate this process. We previously demonstrated that Plasmodium falciparum
Sydney Mauer +5 more
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Gamete-mediated mate choice: towards a more inclusive view of sexual selection
Proceedings of the Royal Society B: Biological Sciences, 2018 ‘Sperm competition’—where ejaculates from two or more males compete for fertilization—and ‘cryptic female choice’—where females bias this contest to suit their reproductive interests—are now part of the everyday lexicon of sexual selection.
J. Kekäläinen, J. Evans
semanticscholar +1 more source
Advanced Science, EarlyView.CCDC41 is essential for meiotic maturation in mouse oocytes through regulating Rab7‐positive endosomes fusion with lysosomes and Rab11a‐positive vesicle fusion with the plasma membrane. Abstract Coiled‐coil domain‐containing protein 41 (CCDC41), a core component of centriolar distal appendages involved in centriole assembly and ciliary vesicle docking,
Ying Tian +12 more
wiley +1 more source
F&S Reports, 2022 Objective: To describe a unique case of primary ovarian insufficiency and review the systemic barriers in place that hinder reproductive autonomy for Black women who require third-party reproduction.
Ashley Wiltshire, M.D. +5 more
doaj +1 more source