Results 11 to 20 of about 344,575 (257)

An Isotonic Model of Neuron Swelling Based on Co-Transport of Salt and Water

open access: yesMembranes, 2023
Neurons spend most of their energy building ion gradients across the cell membrane. During energy deprivation the neurons swell, and the concomitant mixing of their ions is commonly assumed to lead toward a Donnan equilibrium, at which the concentration ...
Reinoud Maex
doaj   +1 more source

New Insights into Alzheimer’s Disease: Novel Pathogenesis, Drug Target and Delivery

open access: yesPharmaceutics, 2023
Alzheimer’s disease (AD), the most common type of dementia, is characterized by senile plaques composed of amyloid β protein (Aβ) and neurofilament tangles derived from the hyperphosphorylation of tau protein.
Haishu Chen   +7 more
doaj   +1 more source

Unconventional Pathways of Protein Secretion: Mammals vs. Plants

open access: yesFrontiers in Cell and Developmental Biology, 2022
In eukaryotes, many proteins contain an N-terminal signal peptide that allows their translocation into the endoplasmic reticulum followed by secretion outside the cell according to the classical secretory system. However, an increasing number of secreted
Elisa Maricchiolo   +5 more
doaj   +1 more source

Extracellular volume fraction using contrast-enhanced CT is useful in differentiating intrahepatic cholangiocellular carcinoma from hepatocellular carcinoma

open access: yesFrontiers in Oncology, 2023
ObjectivesTo evaluate whether tumor extracellular volume fraction (fECV) on contrast-enhanced computed tomography (CT) aids in the differentiation between intrahepatic cholangiocarcinoma (ICC) and hepatocellular carcinoma (HCC).MethodsIn this ...
T. Honda   +12 more
doaj   +1 more source

What Triggers the Interictal Epileptic Spike? A Multimodal Multiscale Analysis of the Dynamic of Synaptic and Non-synaptic Neuronal and Vascular Compartments Using Electrical and Optical Measurements

open access: yesFrontiers in Neurology, 2021
Interictal spikes (IISs) may result from a disturbance of the intimate functional balance between various neuronal (synaptic and non-synaptic), vascular, and metabolic compartments.
Cristian Arnal-Real   +4 more
doaj   +1 more source

The Lysosomal Sequestration of Tyrosine Kinase Inhibitors and Drug Resistance

open access: yesBiomolecules, 2019
The Lysosomal sequestration of weak-base anticancer drugs is one putative mechanism for resistance to chemotherapy but it has never been directly proven. We addressed the question of whether the lysosomal sequestration of tyrosine kinase inhibitors (TKIs)
Eliska Ruzickova   +4 more
doaj   +1 more source

Thimet Oligopeptidase—A Classical Enzyme with New Function and New Form

open access: yesImmuno, 2021
Peptidases generate bioactive peptides that can regulate cell signaling and mediate intercellular communication. While the processing of peptide precursors is initiated intracellularly, some modifications by peptidases may be conducted extracellularly ...
Yu Liu   +3 more
doaj   +1 more source

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   +1 more source

Promotion of Lung Cancer Metastasis by SIRT2‐Mediated Extracellular Protein Deacetylation

open access: yesAdvanced Science, 2023
Acetylation of extracellular proteins has been observed in many independent studies where particular attention has been given to the dynamic change of the microenvironmental protein post‐translational modifications.
Meng Wu   +24 more
doaj   +1 more source

Extracellular vimentin is expressed at the rear of activated macrophage-like cells: Potential role in enhancement of migration and phagocytosis

open access: yesFrontiers in Cell and Developmental Biology, 2022
Macrophages have a vital role in the immune system through elimination of cell debris and microorganisms by phagocytosis. The activation of macrophages by tumour necrosis factor-α induces expression of extracellular cell-surface vimentin and promotes ...
Divyendu Goud Thalla   +6 more
doaj   +1 more source

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