Results 111 to 120 of about 181,113 (262)

Bayesian inference and role of astrocytes in amyloid-beta dynamics with modelling of Alzheimer's disease using clinical data [PDF]

arXiv, 2023
Alzheimer's disease (AD) is a prominent, worldwide, age-related neurodegenerative disease that currently has no systemic treatment. Strong evidence suggests that permeable amyloid-beta peptide (Abeta) oligomers, astrogliosis and reactive astrocytosis cause neuronal damage in AD.
arxiv  

Does neuroinflammation turn on the flame in Alzheimer's disease? Focus on astrocytes [PDF]

, 2015
Data from animal models and Alzheimer's disease (AD) subjects provide clear evidence for an activation of inflammatory pathways during the pathogenetic course of such illness.
BRONZUOLI, MARIA ROSANNA, ESPOSITO, GIUSEPPE, Iacomino, Aniello, SCUDERI, CATERINA, STEARDO, LUCA, Steardo, Luca jr   +5 more
core   +2 more sources

Augmented Cystine–Glutamate Exchange by Pituitary Adenylate Cyclase-activating Polypeptide Signaling via the VPAC1 Receptor [PDF]

, 2014
In the central nervous system, cystine import in exchange for glutamate through system xc- is critical for the production of the antioxidant glutathione by astrocytes, as well as the maintenance of extracellular glutamate. Therefore, regulation of system
Arimura, Ashur-Fabian, Asztely, Baker, Baker, Baker, Bannai, Bannai, Barger, Berman, Brenneman, Brown, Chen, Choi, Costa, Diamond, Dickson, Dugan, Fahrenkrug, Figiel, Fogal, Ghatei, Grant, Grant, Grimaldi, Grimaldi, Groot, Hannibal, Hannibal, Hashimoto, Jackman, Johnson, Joo, Joo, Knackstedt, Kranich, Kupchik, Lewerenz, Liu, Liu, Liu, Liu, Lobner, Macdonald, Magistretti, Martin, Masmoudi-Kouki, Masmoudi-Kouki, Moran, Morio, Murphy, Park, Piani, Pow, Rush, Rush, Sagara, Said, Sato, Schwartz, Seaborn, Shih, Shintani, Sontheimer, Suh, Suzuki, Tatsuno, Tatsuno, Vaudry, Vaudry, Yaka, Ye, Yuhara, Zheng, Zhou   +74 more
core   +2 more sources

Regional astrocyte IFN signaling restricts pathogenesis during neurotropic viral infection [PDF]

, 2017
Type I IFNs promote cellular responses to viruses, and IFN receptor (IFNAR) signaling regulates the responses of endothelial cells of the blood-brain barrier (BBB) during neurotropic viral infection.
Ali, An, Archambault, Brian P. Daniels, Brien, Cramer, Daniels, Douglas M. Durrant, Furr, Furr, Getts, Harsha Jujjavarapu, Hart, Helen M. Lazear, James P. White, Jessica L. Williams, Michael Gale, Michael S. Diamond, Morga, Pfefferkorn, Richard R. Green, Robyn S. Klein, Rothhammer, Wang   +23 more
core   +3 more sources

Computational Astrocyence: Astrocytes encode inhibitory activity into the frequency and spatial extent of their calcium elevations [PDF]

arXiv, 2019
Deciphering the complex interactions between neurotransmission and astrocytic $Ca^{2+}$ elevations is a target promising a comprehensive understanding of brain function. While the astrocytic response to excitatory synaptic activity has been extensively studied, how inhibitory activity results to intracellular $Ca^{2+}$ waves remains elusive.
arxiv  

Cell-to-Cell Communication in Learning and Memory: From Neuro- and Glio-Transmission to Information Exchange Mediated by Extracellular Vesicles [PDF]

, 2019
Most aspects of nervous system development and function rely on the continuous crosstalk between neurons and the variegated universe of non-neuronal cells surrounding them.
Di Liegro, Carlo Maria, Di Liegro, Italia, Schiera, Gabriella   +2 more
core   +1 more source

Memory in astrocytes: a hypothesis [PDF]

Theoretical Biology and Medical Modelling, 2006
AbstractBackgroundRecent work has indicated an increasingly complex role for astrocytes in the central nervous system. Astrocytes are now known to exchange information with neurons at synaptic junctions and to alter the information processing capabilities of the neurons.
openaire   +3 more sources

The Multi-Scale Impact of the Alzheimer's Disease in the Topology Diversity of Astrocytes Molecular Communications Nanonetworks [PDF]

arXiv, 2018
The Internet of Bio-Nano-Things is a new paradigm that can bring novel remotely controlled actuation and sensing techniques inside the human body. Towards precise bionano sensing techniques in the brain, we investigate the challenges of modelling spatial distribution of astrocyte networks in developing a mathematical framework that lay the groundwork ...
arxiv  

Computational models of astrocyte function at glutamatergic synapses [PDF]

New Technologies for Glutamate Interactions: Neurons and Glia, edited by Maria Kukley, 2024, Springer Protocols
At tripartite synapses, astrocytes are in close contact with neurons and contribute to various functions, from synaptic transmission, maintenance of ion homeostasis and glutamate uptake to metabolism. However, disentangling the precise contribution of astrocytes to those phenomena and the underlying biochemical mechanisms is remarkably challenging ...
arxiv   +1 more source

Sources of extracellular glutamate in developing white matter [PDF]

, 2011
Neurotransmitters mediate synaptic communication between neurons and are therefore fundamental to such essential human characteristics as learning, memory, cognition and persona.
Fern, Robert
core