Results 61 to 70 of about 29,353 (245)

M1 muscarinic receptor activation protects neurons from β-amyloid toxicity. A role for Wnt signaling pathway

open access: yesNeurobiology of Disease, 2004
Amyloid-β-peptide (Aβ) deposits are one of the hallmark features of Alzheimer's disease. Signal transduction alterations are implicate in the neuronal responses to Aβ, which include neurotransmitter systems and pathways involved in the maintenance of the
Ginny G. Farías   +5 more
doaj   +1 more source

Structural determinants at the M2 muscarinic receptor modulate the RGS4-GIRK response to pilocarpine by impairment of the receptor voltage sensitivity. [PDF]

open access: yes, 2017
Membrane potential controls the response of the M2 muscarinic receptor to its ligands. Membrane hyperpolarization increases response to the full agonist acetylcholine (ACh) while decreasing response to the partial agonist pilocarpine.
Chen, I-Shan   +2 more
core   +1 more source

Molecular Biological Mechanisms of Yuan Zhi Powder in the Treatment of Alzheimer’s Disease: an Analysis Based on Network Pharmacology

open access: yesDigital Chinese Medicine, 2018
: Objective To predict the main active ingredients, potential targets and molecular mechanisms of Yuan Zhi powder in treatment of dementia by using network pharmacology.Methods A database of chemical constituents of Yuan Zhi powder was constructed by ...
Wei-Jie Qiang   +11 more
doaj   +1 more source

Neurofunctional reorganization and memory improvements induced by rivastigmine in Alzheimer's disease are mediated by α4β2 nicotinic receptor density [PDF]

open access: yesAlzheimers Dement
Abstract Background Acetylcholinesterase inhibitors are used to delay cognitive decline due to Alzheimer's disease (AD) by preventing breakdown of acetylcholine. Such treatment appears to be associated with cerebral changes, although the mechanism of action has not been clarified yet.
Manca R, De Marco M, Venneri A.
europepmc   +2 more sources

[11C]AF150(S), an agonist PET ligand for M1 muscarinic acetylcholine receptors [PDF]

open access: yesEJNMMI Research, 2013
The M1 muscarinic acetylcholine receptor (M1ACh-R) is a G protein-coupled receptor that can occur in interconvertible coupled and uncoupled states. It is enriched in the basal ganglia, hippocampus, olfactory bulb, and cortical areas, and plays a role in motor and cognitive functions. Muscarinic M1 agonists are potential therapeutic agents for cognitive
Buiter, H.J.C.   +7 more
openaire   +3 more sources

Muscarinic receptor oligomerization [PDF]

open access: yes, 2018
G protein-coupled receptors (GPCRs) have been classically described as monomeric entities that function by binding in a 1:1 stoichiometric ratio to both ligand and downstream signalling proteins.
Alvarez-Curto, Elisa   +3 more
core   +1 more source

Muscarinic Receptor Subtypes Mediating Positive and Negative Inotropy in the Developing Chick Ventricle

open access: yesJournal of Pharmacological Sciences, 2007
The inotropic response to muscarinic receptor stimulation of isolated chick ventricular myocardium was examined at various developmental stages, and the receptor subtype involved was pharmacologically characterized.
Hideaki Nouchi   +7 more
doaj   +1 more source

Mir-34a-5p Mediates Cross-Talk between M2 Muscarinic Receptors and Notch-1/EGFR Pathways in U87MG Glioblastoma Cells: Implication in Cell Proliferation [PDF]

open access: yes, 2018
Glioblastoma (GBM) is the most aggressive human brain tumor. The high growth potential and decreased susceptibility to apoptosis of the glioma cells is mainly dependent on genetic amplifications or mutations of oncogenic or pro-apoptotic genes ...
Bevilacqua, Valeria   +8 more
core   +2 more sources

Rapid antidepressant actions of scopolamine: Role of medial prefrontal cortex and M1-subtype muscarinic acetylcholine receptors

open access: yesNeurobiology of Disease, 2015
Clinical studies demonstrate that scopolamine, a non-selective muscarinic acetylcholine receptor (mAchR) antagonist, produces rapid therapeutic effects in depressed patients, and preclinical studies report that the actions of scopolamine require ...
Andrea Navarria   +10 more
doaj   +1 more source

M1 receptors interacting with NMDAR enhance delay-related neuronal firing and improve working memory performance

open access: yesCurrent Research in Neurobiology, 2021
The recurrent excitatory circuits in dlPFC underlying working memory are known to require activation of glutamatergic NMDA receptors (NMDAR). The neurons in these circuits also rely on acetylcholine to maintain persistent activity, with evidence for ...
Veronica C. Galvin   +6 more
doaj   +1 more source

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