Results 171 to 180 of about 2,623,298 (367)

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

open access: yes, 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   +74 more
core   +2 more sources

Simplified calcium signaling cascade for synaptic plasticity [PDF]

open access: yesarXiv, 2019
We propose a model for synaptic plasticity based on a calcium signaling cascade. The model simplifies the full signaling pathways from a calcium influx to the phosphorylation (potentiation) and dephosphorylation (depression) of glutamate receptors that are gated by fictive C1 and C2 catalysts, respectively.
arxiv  

Berberine is a Novel Mitochondrial Calcium Uniporter Inhibitor that Disrupts MCU‐EMRE Assembly

open access: yesAdvanced Science, EarlyView.
Berberine, a safe and FDA‐approved drug, is identified as a novel mitochondrial calcium uniporter (MCU) inhibitor. By disrupting MCU‐EMRE interaction, Berberine prevents mitochondrial calcium overload and protects against ischemia/reperfusion injury, offering a promising therapeutic strategy for diseases linked to mitochondrial calcium dysregulation ...
Haixin Zhao   +17 more
wiley   +1 more source

Immunostimulatory Hydrogel with Synergistic Blockage of Glutamine Metabolism and Chemodynamic Therapy for Postoperative Management of Glioblastoma

open access: yesAdvanced Science, EarlyView.
To address the challenge of postoperative recurrence, Combo Gel, a peptide‐based hydrogel that integrates glutamine metabolism modulation with chemodynamic therapy (CDT) is engineered. This innovative system, containing CB‐839 and copper peptide nanoparticles (Cu‐His NPs), enhances CDT's efficacy and promotes immunogenic cell death, thereby ...
Yiran Guo   +9 more
wiley   +1 more source

PAF‐induced inflammatory and immuno‐allergic ophthalmic diseases and their mitigation with PAF receptor antagonists: Cell and nuclear effects

open access: yesBioFactors, Volume 48, Issue 6, Page 1226-1249, November/December 2022., 2022
Abstract Ocular allergies are becoming more prevalent as more airborne pollutants, irritants and microbes pervade our environment. Inflammatory and allergic mediators released by dendritic and mast cells within the conjunctiva cause allergic conjunctivitis (AC), a prevalent ocular surface disorder that affects >40% of the world's human population on a ...
Najam A. Sharif
wiley   +1 more source

A Molecularly Defined Medullary Network for Control of Respiratory Homeostasis

open access: yesAdvanced Science, EarlyView.
The dynamic interplay between central respiratory chemoreceptors and the respiratory central pattern generator is essential for maintaining stable respiratory rhythm and patterns, particularly during sleep. This study offers novel insights into the anatomical, molecular, and functional characteristics of a medullary network involving the nucleus ...
Tianjiao Deng   +16 more
wiley   +1 more source

Psychedelic Drugs in Mental Disorders: Current Clinical Scope and Deep Learning‐Based Advanced Perspectives

open access: yesAdvanced Science, EarlyView.
Graphic illustration showing the strategic approaches based on the currently investigated evidence of psychedelics that suggests the challenges and how to address the prescription of mental disorders. These applicable avenues may provide substantial insight into distinguishing between brain networks and psychedelics.
Sung‐Hyun Kim   +5 more
wiley   +1 more source

Analysis of serum metabolism in premature infants before and after feeding using GC–MS and the relationship with necrotizing enterocolitis

open access: yesBiomedical Chromatography, Volume 37, Issue 1, January 2023., 2023
Abstract Preterm birth and enteral feeding are two main factors leading to necrotizing enterocolitis (NEC). The metabolomics of preterm infants before and after feeding can provide a basis for the prediction of NEC. Using the method of cross‐sectional study, the mode was established with the serum samples of 19 premature infants at birth and after ...
Fusheng Wang   +5 more
wiley   +1 more source

A Molecular Communication Perspective of Alzheimer's Disease: Impact of Amyloid Beta Oligomers on Glutamate Diffusion in the Synaptic Cleft [PDF]

open access: yesarXiv
Molecular communication (MC) within the synaptic cleft is vital for neurotransmitter diffusion, a process critical to cognitive functions. In Alzheimer's Disease (AD), beta-amyloid oligomers (A$\beta$os) disrupt this communication, leading to synaptic dysfunction.
arxiv  

A computational study on synaptic and extrasynaptic effects of astrocyte glutamate uptake on orientation tuning in V1 [PDF]

open access: yesarXiv, 2017
Astrocytes affect neural transmission by a tight control via glutamate transporters on glutamate concentrations in direct vicinity to the synaptic cleft and by extracellular glutamate. Their relevance for information representation has been supported by in-vivo studies in ferret and mouse primary visual cortex.
arxiv  

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