Results 91 to 100 of about 43,231 (266)

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological 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

In Vivo Cytoskeletal AMPA Receptor Transport Imaging in C. elegans

open access: yesCytoskeleton, EarlyView.
ABSTRACT Long‐distance intracellular transport of ionotropic glutamate receptors (iGluRs) is essential for proper excitatory synaptic function underlying learning and memory. Many neuropsychiatric and neurodegenerative conditions have abnormal iGluR transport and trafficking, leading to an intense interest in the mechanisms and factors regulating these
Michaelis A. K., Hoerndli F. J.
wiley   +1 more source

Measurement and Analysis of Gonadal Irradiation Dose During Singe-shot X-ray Exposure of Both Lower Limbs

open access: yesCT Lilun yu yingyong yanjiu
Objective: To investigate the relationship between entrance surface dose (ESD) of gonads and physiological parameters such as sex, age, height, and weight in digital X-ray exposure of both lower limbs and to explore the feasibility of full-width long ...
Ce WANG   +7 more
doaj   +1 more source

The β integrin modulates serotonin sensitivity via NPxY motifs to regulate egg laying and mechanosensation behaviors in Caenorhabditis elegans

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Integrin is an αβ heterodimeric receptor to the extracellular matrix; its binding to the matrix recruits focal adhesions to two NPxY motifs, the tyrosine phosphorylation sites in the cytoplasmic domain. Studies found that replacing tyrosines (Y) with phenylalanines (F) in the motif of β1 integrin displayed little developmental or ...
Josh Haram Bumm   +7 more
wiley   +1 more source

Role of SoxE transcription factors in development and disease

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Sox8, Sox9, and Sox10 arose by multiple rounds of genome duplications from a single SoxE gene in ancestral vertebrates. In this review, we will briefly discuss the molecular structure and function of SoxE transcription factors and their evolutionary origin. We will then discuss their expression, function, and developmental disorders.
Merin Lawrence, Gerhard Schlosser
wiley   +1 more source

De Novo Assembly, Characterization and Comparative Transcriptome Analysis of the Mature Gonads in Megalobrama terminalis

open access: yesAnimals
Megalobrama terminalis is a significant aquatic fish in South China, renowned for its tasty meat. Nonetheless, related studies are deficient concerning the gonadal development of M. terminalis.
Yicheng Zhou   +9 more
doaj   +1 more source

Embryonic development of the Mediterranean starfish Hacelia attenuata

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo   +3 more
wiley   +1 more source

Artificial Intelligence-Based Approach for Automated Gonad Volume Quantification Using Magnetic Resonance Imaging in Healthy Adolescents Across Puberty

open access: yesDiagnostics
Background/Objectives: MRI is a non-invasive tool which can be used to assess baseline gonadal anatomy, including changes during puberty. Volumetric characterization offers valuable insights about the reproductive system and gonads, but annotation is ...
Fahmida Haque   +11 more
doaj   +1 more source

Goofy/123Cre lineage tracing differentiates olfactory and vomeronasal neurons from GnRH‐1 and terminal nerve neurons during neuronal migration and reveals additional olfactory placode‐derived cells in the brain

open access: yesDevelopmental Dynamics, EarlyView.
Abstract The olfactory placode (OP) generates a broad array of chemosensory neurons in the nasal region, including olfactory sensory neurons, vomeronasal sensory neurons, neurons of the septal organ, and Grueneberg ganglion. During invagination, the OP also generates migratory neuronal populations, including gonadotropin‐releasing hormone‐1 (GnRH‐1 ...
Enrico Amato Jr.   +5 more
wiley   +1 more source

Three‐dimensional observation of the muscle–tendon integration process in mouse embryos

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Muscle–tendon integration is a crucial step in the morphogenesis of the vertebrate locomotion system. As the limb muscle and tendon progenitor cells derive from distinct embryonic origin, their integration requires precise mutual positioning.
Ramu Sagasaki   +10 more
wiley   +1 more source

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