Simultaneous release of glutamate and acetylcholine from single magnocellular "cholinergic" basal forebrain neurons [PDF]
Basal forebrain (BF) neurons provide the principal cholinergic drive to the hippocampus and cortex. Their degeneration is associated with the cognitive defects of Alzheimer's disease. Immunohistochemical studies suggest that some of these neurons contain
Abogadie, FC, Allen, TGJ, Brown, DA
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Delineating muscarinic receptor functions [PDF]
Acetylcholine, as the first chemical molecule to be established as a neurotransmitter, has attracted enduring interest from researchers over several decades. However, deciphering all of the physiological manifestations associated with actions of this molecule has been difficult, and many mysteries of cholinergic neurotransmission still remain to be ...
Marc G. Caron, Raul R. Gainetdinov
openaire +3 more sources
Structures of the M1 and M2 muscarinic acetylcholine receptor/G-protein complexes
Choosing a partner G protein–coupled receptors (GPCRs) bind ligands outside the cell and trigger events inside the cell by selectively binding and activating specific G proteins. The selectivity occurs even among highly related GPCRs.
S. Maeda+4 more
semanticscholar +1 more source
Ligand regulation of the quaternary organization of cell surface M3 muscarinic acetylcholine receptors analyzed by fluorescence resonance energy transfer (FRET) imaging and homogenous time-resolved FRET [PDF]
Flp-In T-REx 293 cells expressing a wild type human M muscarinic acetylcholine receptor construct constitutively and able to express a Receptor Activated Solely by Synthetic Ligand (RASSL) form of this receptor on demand maintained response to the ...
Alvarez-Curto, Elisa+3 more
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Infusions of Valeriana pilosa are commonly used in Peruvian folk medicine for treating gastrointestinal disorders. This study aimed to investigate the spasmolytic and antispasmodic effects of Valeriana pilosa essential oil (VPEO) on rat ileum.
Roberto O. Ybañez-Julca+12 more
doaj +1 more source
Molecular properties of muscarinic acetylcholine receptors
Muscarinic acetylcholine receptors, which comprise five subtypes (M1-M5 receptors), are expressed in both the CNS and PNS (particularly the target organs of parasympathetic neurons). M1-M5 receptors are integral membrane proteins with seven transmembrane
T. Haga
semanticscholar +1 more source
Inhibition of Subsets of G Protein-coupled Receptors by Empty Mutants of G Protein α Subunits in Go, G11, and G16 [PDF]
We previously reported that the xanthine nucleotide binding Goα mutant, GoαX, inhibited the activation of Gi-coupled receptors. We constructed similar mutations in G11α and G16α and characterized their nucleotide binding and receptor interaction.
Gu, Lingjie, Simon, Melvin I., Yu, Bo
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Additive interaction of intrathecal ginsenosides and neostigmine in the rat formalin test [PDF]
BackgroundThe authors evaluated the effect of intrathecal mixture of ginsenosides with neostigmine on formalin-induced nociception and made further clear the role of the spinal muscarinic (M) receptors on the activity of ginsenosides.MethodsA catheter ...
Cheon-Hee Park+3 more
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Widespread decreases in cortical muscarinic receptors in a subset of people with schizophrenia.
These studies were undertaken to investigate the selectivity of cortical muscarinic receptor radioligand binding in muscarinic M(1) and M(4) receptor knockout mice and to determine whether a marked decrease in [(3)H]pirenzepine binding in Brodmann's area
A. Gibbons+6 more
semanticscholar +1 more source
Carbachol increases intracellular free calcium concentrations in human granulosa-lutein cells [PDF]
We investigated whether the stimulation of human granulosa-lutein cells with muscarinic and nicotinic receptor agonists can cause increases in intracellular free calcium (Ca2+), using Fura-2 microfluorimetry.
Föhr, K. J.+3 more
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