Results 91 to 100 of about 1,544,426 (289)
Evidence for adaptive explanations of semelparity in animals
Biological Reviews, EarlyView.ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher +1 more
wiley +1 more source
A physiological approach for supporting oocyte-cumulus cell communication and chromatin remodelling at meiotic resumption [PDF]
, 2016 In vitro embryo production (IVP) remains inefficient in both clinical applications of human reproduction and animal breeding and the development of pre-maturation strategies to improve IVP is a mayor challenge in assisted reproductive technologies.
A.M. Luciano
core +2 more sources
Asian Journal of Andrology, 2015 Biomarker-based sperm analysis elevates the treatment of human infertility and ameliorates reproductive performance in livestock. The negative biomarker-based approach focuses on proteins and ligands unique to defective spermatozoa, regardless of their ...
Peter Sutovsky +3 more
doaj +1 more source
Epigenetic regulation of germ cell and early embryonic development by Polycomb group proteins [PDF]
, 2011 Mammalian development begins at fertilization, when two highly specialized gametes, sperm and oocyte fuse to form a zygote. It is well established that early development of the embryo is driven by factors that are inherited from the oocyte.
Pósfai, Eszter
core +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
Developmental Dynamics, EarlyView.Abstract The sea anemone, Nematostella vectensis, has been used as a model organism in developmental biology studies for many years. This estuarine species has the notable capacity to regenerate its full body plan from small pieces throughout life. Nematostella have been described as having a great degree of cellular plasticity.
Patrick A. Lewis +3 more
wiley +1 more source
Oocyte donation pregnancies-non-disclosure of oocyte recipient status to obstetric care providers and perinatal outcomes [PDF]
, 2018 Background: Oocyte donation pregnancies-non-disclosure of oocyte recipient (OR) status to obstetric care providers and perinatal outcomes. Many studies report a higher rate of pregnancy-induced hypertension (PIH) and severe pre-eclampsia (PET) in OR ...
O'Donoghue, Keelin +3 more
core +1 more source
Precision therapies for genetic epilepsies in 2025: Promises and pitfalls
Epilepsia Open, EarlyView.Abstract By targeting the underlying etiology, precision therapies offer an exciting paradigm shift to improve the stagnant outcomes of drug‐resistant epilepsies, including developmental and epileptic encephalopathies. Unlike conventional antiseizure medications (ASMs) which only treat the symptoms (seizures) but have no effect on the underlying ...
Shuyu Wang +3 more
wiley +1 more source
Mammalian phospholipase Cζ induces oocyte activation from the sperm perinuclear matrix [PDF]
, 2004 Mammalian sperm-borne oocyte activating factor (SOAF) induces oocyte activation from a compartment that engages the oocyte cytoplasm, but it is not known how.
Izumi, Tomonori +7 more
core +1 more source
Somatic cell reprogramming for Parkinson's disease treatment
Ibrain, Volume 11, Issue 1, Page 59-73, Spring 2025.The fundamental purpose of cell reprogramming to treat Parkinson's disease is to generate dopaminergic neurons (DAN) and do transplantation. There are two ways to accomplish this. One method is to induce cells into induced DA neurons (iDAN) directly or to induce cells into induced pluripotent stem cells and ultimately into iDAN in vitro. Another option
Xiaozhuo Li, Kevin Fang, Fengping Wang
wiley +1 more source