Results 121 to 130 of about 423,412 (333)

A biophysical network model reveals the link between deficient inhibitory cognitive control and major neurotransmitter and neural connectivity hypotheses in schizophrenia [PDF]

open access: yesarXiv, 2021
We address a biophysical network dynamical model to study how the modulation of dopamine (DA) activity and related N-methyl-d-aspartate (NMDA) glutamate receptor activity as well as the emerging Pre-Frontal Cortex (PFC) functional connectivity network (FCN) affect inhibitory cognitive function in schizophrenia in an antisaccade task.
arxiv  

Polar Chemoreceptor Clustering by Coupled Trimers of Dimers [PDF]

open access: yesBiophys J 96(2): 453-463 (2009), 2009
Receptors of bacterial chemotaxis form clusters at the cell poles, where clusters act as "antennas" to amplify small changes in ligand concentration. Interestingly, chemoreceptors cluster at multiple length scales. At the smallest scale, receptors form dimers, which assemble into stable timers of dimers.
arxiv   +1 more source

Blunted Cystine–Glutamate Antiporter Function in the Nucleus Accumbens Promotes Cocaine-induced Drug Seeking [PDF]

open access: yes, 2008
Repeated cocaine alters glutamate neurotransmission, in part, by reducing cystine–glutamate exchange via system xc−, which maintains glutamate levels and receptor stimulation in the extrasynaptic compartment.
Abdulhameed, Omer   +5 more
core   +1 more source

Antiparkinsonian Effects of a Metabotropic Glutamate Receptor 4 Agonist in MPTP-Treated Marmosets.

open access: yesJournal of Parkinson's Disease, 2020
BACKGROUND Increased firing across glutamatergic synapses may contribute to both the motor dysfunction and L-DOPA-induced dyskinesia seen in Parkinson's disease.
Elizabeth Mann   +5 more
semanticscholar   +1 more source

Navigating the treatment landscape of Alzheimer's disease: Current strategies and future directions

open access: yesIbrain, EarlyView.
Alzheimer's disease treatment is evolving rapidly, with emerging strategies targeting multiple disease pathways. This graphical abstract highlights the shift from traditional therapies to innovative approaches that hold promise for improving outcomes.
Tapas Kumar Mohapatra   +4 more
wiley   +1 more source

L-DOPA-Induced Motor Impairment and Overexpression of Corticostriatal Synaptic Components Are Improved by the mGluR5 Antagonist MPEP in 6-OHDA-Lesioned Rats

open access: yesASN Neuro, 2018
Levodopa (L-DOPA) is still the most effective drug for the treatment of Parkinson’s disease (PD). However, the long-term therapy often triggers L-DOPA-induced dyskinesia (LID).
Yixian Huang   +6 more
doaj   +1 more source

Shedding of Microvesicles from Microglia Contributes to the Effects Induced by Metabotropic Glutamate Receptor 5 Activation on Neuronal Death

open access: yesFrontiers in Pharmacology, 2017
Metabotropic glutamate (mGlu) receptor 5 is involved in neuroinflammation and has been shown to mediate reduced inflammation and neurotoxicity and to modify microglia polarization.
Martina Beneventano   +9 more
doaj   +1 more source

The activation of group II metabotropic glutamate receptors protects neonatal rat brains from oxidative stress injury after hypoxia-ischemia. [PDF]

open access: yesPLoS ONE, 2018
Birth asphyxia resulting in brain hypoxia-ischemia (H-I) can cause neonatal death or lead to persistent brain damage. Recent investigations have shown that group II metabotropic glutamate receptor (mGluR2/3) activation can provide neuroprotection against
Ewelina Bratek   +3 more
doaj   +1 more source

Targeting glutamate metabolism in melanoma [PDF]

open access: yesarXiv, 2019
The glutamate metabotropic receptor 1 (GRM1) drives oncogenesis when aberrantly activated in melanoma and several other cancers. Metabolomics reveals that patient-derived xenografts with GRM1-positive melanoma tumors exhibit elevated plasma glutamate levels associated with metastatic melanoma in vivo. Stable isotope tracing and GCMS analysis determined
arxiv  

Molecular‐Informed Network Analysis Unveils Fatigue‐Related Functional Connectivity in Parkinson's Disease

open access: yesMovement Disorders, EarlyView.
Abstract Background Fatigue in Parkinson's disease (PD) is a prevalent and debilitating non‐motor symptom. Despite its significant impact on quality of life, the underlying neurochemical and network‐based mechanisms remain poorly understood. Objectives This observational study applied a multimodal imaging approach to explore potential links between the
Ilaria Antonella Di Vico   +14 more
wiley   +1 more source

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