Results 221 to 230 of about 34,397 (264)
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Interaction of Edrophonium with Muscarinic Acetylcholine M2and M3Receptors

Anesthesiology, 2001
Background It has been reported that edrophonium can antagonize the negative chronotropic effect of carbachol. This study was undertaken to evaluate in detail the interaction of edrophonium with muscarinic Mz and M3 receptors. Methods A functional study was conducted to evaluate the
Y, Tanito   +6 more
openaire   +2 more sources

Sialic acid is selectively involved in the interaction of agonists with M2 muscarinic acetylcholine receptors

Biochemical and Biophysical Research Communications, 1988
Neuraminidase and slight acid hydrolysis were used to investigate the role of sialic acid residues in the binding of muscarinic agonists and antagonists to membranes from tissues rich in M1 and M2 receptors. Membranes were pretreated with neuraminidase at pH 5 and the binding parameters were determined from competitive experiments with (3H ...
J P, Gies, Y, Landry
openaire   +2 more sources

Identification of a [3H]Ligand for the Common Allosteric Site of Muscarinic Acetylcholine M2 Receptors

Molecular Pharmacology, 1998
Muscarinic acetylcholine receptors bind allosteric modulators at a site apart from the orthosteric site used by conventional ligands. We tested in cardiac tissue whether modulator binding to ligand-occupied muscarinic M2 receptors is a preferential event that can be detected using a radioactive allosteric agent. The newly synthesized dimethyl-W84 (N,N'-
C, Tränkle   +4 more
openaire   +2 more sources

Effects of Autoantibodies against M2 Muscarinic Acetylcholine Receptors on Rabbit Atria in vivo

Cardiology, 2008
<i>Background:</i> Evidence has shown that autoantibodies against M2 muscarinic acetylcholine receptors may play a role in the development of atrial fibrillation. The goal of this study was to evaluate the effects of anti-M2 receptor autoantibodies on rabbit atria in vivo.
Chang Ming, Hong   +5 more
openaire   +2 more sources

Intramolecular interactions in muscarinic acetylcholine receptors studied with chimeric m2/m5 receptors.

Molecular Pharmacology, 1994
Current models of the three-dimensional structures of muscarinic acetylcholine receptors and other G protein-coupled receptors are based primarily on high-resolution electron diffraction data obtained with bacteriorhodopsin, the molecular structure of which is characterized by the presence of seven alpha-helical transmembrane domains (TM I-VII ...
Z, Pittel, J, Wess
openaire   +2 more sources

Agonist-induced down-regulation and antagonist-induced up-regulation of m2- and m3-muscarinic acetylcholine receptor mRNA and protein in cultured cerebellar granule cells.

Molecular Pharmacology, 1993
Cerebellar granule cells express m2- and m3-muscarinic acetylcholine receptors (mAChRs) and their corresponding mRNA with m3-mAChR being the predominant receptor subtype.
F. Fukamauchi   +3 more
semanticscholar   +1 more source

Differential calcium signalling by m2 and m3 muscarinic acetylcholine receptors in a single cell type

Naunyn-Schmiedeberg's Archives of Pharmacology, 1995
We have compared muscarinic acetylcholine receptor (mAChR) coupling to phospholipase C (PLC) and increases in cytoplasmic Ca2+ concentration [Ca2+]i in human embryonic kidney (HEK) cells, stably expressing either the human m3 or m2 receptor subtype. In m3 mAChR-expressing cells, carbachol stimulated inositol phosphate (InsP) formation and increased ...
Schmidt, M.   +4 more
openaire   +3 more sources

Identification of M1 and M2 muscarinic acetylcholine receptors in the cat carotid body chemosensory system

Neuroscience, 2004
The carotid body is a major arterial chemoreceptor that senses low O2 tension, high CO2 tension and low pH in the arterial blood. It is generally believed that neurotransmitters, including acetylcholine (ACh), participate in the genesis of afferent neural output from the carotid body and modulate the function of chemoreceptor cells (glomus cells ...
M, Shirahata   +6 more
openaire   +2 more sources

Feishu Acupuncture Inhibits Acetylcholine Synthesis and Restores Muscarinic Acetylcholine Receptor M2 Expression in the Lung When Treating Allergic Asthma

Inflammation, 2018
Yu-li Liu   +8 more
semanticscholar   +1 more source

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