Results 91 to 100 of about 157,835 (298)
Casanovas are liars : behavioral syndromes, sperm competition risk, and the evolution of deceptive male mating behavior in live-bearing fishes [version 2; referees: 2 approved, 1 approved with reservations] [PDF]
, 2013 Male reproductive biology can by characterized through competition over mates as well as mate choice. Multiple mating and male mate choice copying, especially in internally fertilizing species, set the stage for increased sperm competition, i.e., sperm ...
Bierbach, David +5 more
core +2 more sources
The Landscape and Regulation of Histone Crotonylation in Mammalian Gametes and Early Embryos
Advanced Science, EarlyView.Histone crotonylation undergoes a genome‐wide transition from broad domains to canonical narrow peaks during minor zygotic genome activation (ZGA). This remodeling is required for proper major ZGA and blastocyst formation. Disruption of this transition by transcriptional inhibition, metabolic perturbation, or HDAC1 dysfunction impairs embryonic ...
Shenli Yuan +8 more
wiley +1 more source
The male to female ratio at birth [PDF]
, 2014 The factors that influence the male to female ratio at birth are legion. Males are usually born in excess and stress decreases the ratio while wellbeing and good health tends to increase it.
Grech, Victor E., Mamo, Julian
core +1 more source
Advanced Science, EarlyView.The study elucidates that paternal preconception stress can drive offspring hyperresponsivity of the stress system via hypomethylation of a specific DNA region in sperm. This key link is confirmed in a cohort of prospective fathers: the epigenetic alteration is associated with elevated stress hormone levels.
Mengxi Lu +10 more
wiley +1 more source
Advanced Science, EarlyView.Ovarian macrophage depletion reverses OHSS resistance in estrildid finches and exacerbates OHSS symptoms in rats. Activating macrophage GPR183 alleviates OHSS by reducing pro‐inflammatory factors, increasing immunomodulatory molecules, remodeling CD44/SDC4‐mediated communication, and restoring immune homeostasis.
Xiaofei Yan +11 more
wiley +1 more source
Sperm Selection through Microvesicle-Mediated ChemotaxisInduced by Follicular Fluid and Cumulus Cells [PDF]
Cell JournalObjective: Selecting the most competent sperm is crucial for improving the success of intracytoplasmic sperm injection(ICSI). Chemotaxis-based sperm selection may facilitate the selection of spermatozoa with superior motility andfertilization capability.
Tohid Rezaei Topraggaleh +3 more
doaj +1 more source
Absence of Neu5Gc and Presence of Anti-Neu5Gc Antibodies in Humans-An Evolutionary Perspective. [PDF]
, 2019 The glycocalyx of human cells differs from that of many other mammals by the lack of the sialic acid N-glycolylneuraminic acid (Neu5Gc) and increased abundance of its precursor N-acetylneuraminic acid (Neu5Ac).
Altman, Meghan O, Gagneux, Pascal
core +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo +3 more
wiley +1 more source
مجله دانشکده پزشکی اصفهان, 2009 Background: Sperm selection for ICSI is based on morphology and motility, but these parameters may not relevant chromatin integrity. One of the sperm selection methods for ICSI is based on sperm functional characteristics.
Mohammad Reza Deemeh +5 more
doaj
Proteins involved in motility and sperm-egg interaction evolve more rapidly in mouse spermatozoa.
PLoS ONE, 2014 Proteomic studies of spermatozoa have identified a large catalog of integral sperm proteins. Rapid evolution of these proteins may underlie adaptive changes of sperm traits involved in different events leading to fertilization, although the selective ...
Alberto Vicens +2 more
doaj +1 more source