Results 11 to 20 of about 5,853,415 (367)

Synucleinopathy alters nanoscale organization and diffusion in the brain extracellular space through hyaluronan remodeling [PDF]

open access: yesNature Communications, 2020
The nanoscale organisation of the brain extracellular space can be studied in vivo. Here, the authors investigate how it changes in response to α-synuclein pathology, and identify interactions between microglia and the extracellular matrix.
Federico N. Soria   +11 more
doaj   +3 more sources

Diffusion in Brain Extracellular Space [PDF]

open access: yesPhysiological Reviews, 2008
Diffusion in the extracellular space (ECS) of the brain is constrained by the volume fraction and the tortuosity and a modified diffusion equation represents the transport behavior of many molecules in the brain. Deviations from the equation reveal loss of molecules across the blood-brain barrier, through cellular uptake, binding, or other mechanisms ...
Eva, Syková, Charles, Nicholson
openaire   +3 more sources

Extracellular space preservation aids the connectomic analysis of neural circuits

open access: yeseLife, 2015
Dense connectomic mapping of neuronal circuits is limited by the time and effort required to analyze 3D electron microscopy (EM) datasets. Algorithms designed to automate image segmentation suffer from substantial error rates and require significant ...
Marta Pallotto   +4 more
doaj   +2 more sources

Purinergic signaling in cochlear supporting cells reduces hair cell excitability by increasing the extracellular space [PDF]

open access: yeseLife, 2020
Neurons in developing sensory pathways exhibit spontaneous bursts of electrical activity that are critical for survival, maturation and circuit refinement.
Travis A Babola   +3 more
doaj   +2 more sources

Diffusion in the extracellular space in brain and tumors [PDF]

open access: yesPhysical Biology, 2013
Diffusion of solutes and macromolecules in the extracellular space (ECS) in brain is important for non-synaptic intercellular communication, extracellular ionic buffering, and delivery of drugs and metabolites. Diffusion in tumor ECS is important for delivery of anti-tumor drugs.
A. Verkman
openaire   +5 more sources

Unassembled cell wall proteins form aggregates in the extracellular space of Chlamydomonas reinhardtii strain UVM4. [PDF]

open access: hybridAppl Microbiol Biotechnol, 2022
Barolo L   +7 more
europepmc   +3 more sources

Extracellular space diffusion and extrasynaptic transmission

open access: goldPhysiological Research, 2008
The diffusion of neuroactive substances in the extracellular space (ECS) plays an important role in short- and long-distance communication between nerve cells and is the underlying mechanism of extrasynaptic (volume) transmission. The diffusion properties of the ECS are described by three parameters: 1. ECS volume fraction alpha (alpha=ECS volume/total
Lýdia Vargová, Eva Syková
openalex   +3 more sources

Modeling Extracellular Field Potentials and the Frequency-Filtering Properties of Extracellular Space [PDF]

open access: bronzeBiophysical Journal, 2004
Extracellular local field potentials (LFP) are usually modeled as arising from a set of current sources embedded in a homogeneous extracellular medium. Although this formalism can successfully model several properties of LFPs, it does not account for their frequency-dependent attenuation with distance, a property essential to correctly model ...
Claude Bedard   +5 more
openalex   +4 more sources

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