Results 131 to 140 of about 157,699 (364)

Nuclear Assembly in Giant Unilamellar Vesicles Encapsulating Xenopus Egg Extract

open access: yesSmall, EarlyView.
Cell nuclei have been reconstituted in membrane‐less compartments using Xenopus egg extract, but not within lipid bilayer‐enclosed compartments. This study modifies the inverted emulsion method by adding chloroform to the lipid‐dispersed oil and extending lipid monolayer formation at the oil–egg extract interface, enabling the encapsulation of egg ...
Sho Takamori   +7 more
wiley   +1 more source

Forging a New Frontier: Antimicrobial Peptides and Nanotechnology Converging to Conquer Gastrointestinal Pathogens

open access: yesSmall, EarlyView.
This review explores the potential of antimicrobial peptides (AMPs) and nanotechnology for the treatment of gastrointestinal infections. It analyzes bacterial resistance mechanisms, the antimicrobial actions of AMPs, and advances in nanocarriers, such as lipid‐based, polymeric, metallic, and mesoporous silica systems, that enhance peptide protection ...
Christian Shleider Carnero Canales   +10 more
wiley   +1 more source

Xenopus and Zebrafish Annotation in the UniProt Knowledgebase (UniProtKB) [PDF]

open access: yes, 2009
The African clawed frog Xenopus laevis and the zebrafish Danio rerio have both proved to be good model organisms for studying early vertebrate cellular and developmental biology.
Rebecca E. Foulger, UniProt Consortium
core   +2 more sources

Optimal axonal and dendritic branching strategies during the development of neural circuitry [PDF]

open access: yesarXiv, 2008
In developing brain, axons and dendrites are capable of connecting to each other with high precision. Recent advances in imaging have allowed for the monitoring of axonal, dendritic, and synapse dynamics in vivo. It is observed that the majority of axonal and dendritic branches are formed 'in error', only to be retracted later.
arxiv  

How Does the Xenopus laevis Embryonic Cell Cycle Avoid Spatial Chaos?

open access: yesCell Reports, 2015
Theoretical studies have shown that a deterministic biochemical oscillator can become chaotic when operating over a sufficiently large volume and have suggested that the Xenopus laevis cell cycle oscillator operates close to such a chaotic regime.
Lendert Gelens   +2 more
doaj   +1 more source

The TissueTractor: A Device for Applying Large Strains to Tissues and Cells for Simultaneous High‐Resolution Live Cell Microscopy

open access: yesSmall Methods, EarlyView.
Mechanical strain influences tissue development, homeostasis, and disease. The TissueTractor, a high‐strain stretcher system, enables high‐resolution imaging of live tissues and cells under strain, revealing cellular strain heterogeneity, cytoskeletal remodeling, and morphological adaptations in various model systems.
Jing Yang   +11 more
wiley   +1 more source

Oocyte maturation in the toad Rhinella arenarum (Amphibia, Anura): Evidence of cAMP involvement in steroid production and action [PDF]

open access: yes, 2018
In this work, we describe the participation of the adenylate cyclase/3′-5′-cyclic adenonsine monophosphate (cAMP) pathway in the seasonal follicular secretion of progesterone (P 4 ) and testosterone (T), and its relationship with the maturation of ...
Arias Torres   +48 more
core   +1 more source

Limb Regeneration in Xenopus laevis Froglet

open access: yesThe Scientific World Journal, 2006
Limb regeneration in amphibians is a representative process of epimorphosis. This type of organ regeneration, in which a mass of undifferentiated cells referred to as the “blastema” proliferate to restore the lost part of the amputated organ, is distinct
Makoto Suzuki   +5 more
doaj   +1 more source

Ecophysiology of an Avian Invader: Body Condition and Metabolic Rate Adjustments to Ambient Temperature

open access: yesIntegrative Zoology, EarlyView.
This study examines the ecophysiological responses of common waxbills to temperature variation in Portugal. We measured body condition and basal metabolic rate (BMR) during summer and winter across two regions in Portugal. Body condition was negatively correlated with temperature, while the relationship between BMR and temperature varied seasonally. In
Marina Sentís   +7 more
wiley   +1 more source

Large, long range tensile forces drive convergence during [PDF]

open access: yes, 2018
Indirect evidence suggests that blastopore closure during gastrulation of anamniotes, including amphibians such as Xenopus laevis, depends on circumblastoporal convergence forces generated by the marginal zone (MZ), but direct evidence is lacking.
Davidson, Lance A.   +3 more
core   +1 more source

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