Results 21 to 30 of about 493,465 (339)

Differential Contribution of Subunit Interfaces to α 9 α 10 Nicotinic Acetylcholine Receptor Function [PDF]

open access: yes, 2017
Nicotinic acetylcholine receptors can be assembled from either homomeric or heteromeric pentameric subunit combinations. At the interface of the extracellular domains of adjacent subunits lies the acetylcholine binding site, composed of a principal ...
Boffi, Juan Carlos   +11 more
core   +3 more sources

Phosphocholine – an agonist of metabotropic but not of ionotropic functions of α9-containing nicotinic acetylcholine receptors

open access: yesScientific Reports, 2016
We demonstrated previously that phosphocholine and phosphocholine-modified macromolecules efficiently inhibit ATP-dependent release of interleukin-1β from human and murine monocytes by a mechanism involving nicotinic acetylcholine receptors (nAChR ...
K. Richter   +10 more
semanticscholar   +1 more source

Nicotine receptor partial agonists for smoking cessation

open access: yesCochrane Database of Systematic Reviews, 2023
Nicotine receptor partial agonists may help people to stop smoking by a combination of maintaining moderate levels of dopamine to counteract withdrawal symptoms (acting as an agonist) and reducing smoking satisfaction (acting as an antagonist). This is an update of a Cochrane Review first published in 2007.To assess the effectiveness of nicotine ...
Livingstone-Banks, J   +6 more
openaire   +4 more sources

Functional Stoichiometry at the Nicotinic Receptor. The Photon Cross Section for Phase 1 Corresponds to Two Bis-Q Molecules per Channel [PDF]

open access: yes, 1982
These experiments examine changes in the agonist-induced conductance that occur when the agonist-receptor complex is perturbed. Voltage-clamped Electrophorus electroplaques are exposed to the photoisomerizable agonist trans-Bis-Q A 1-µs laser flash ...
Lester, Henry A., Sheridan, Robert E.
core   +1 more source

An Accessory Agonist Binding Site Promotes Activation of α4β2* Nicotinic Acetylcholine Receptors*

open access: yesJournal of Biological Chemistry, 2015
Background: In (α4β2)2α4 nicotinic acetylcholine receptors, there is an agonist binding site at the α4/α4 subunit interface. Results: α2, α3, and α6 accessory subunits can form an agonist site with α4.
Jingyi Wang   +6 more
semanticscholar   +1 more source

Activation of muscle nicotinic acetylcholine receptor channels by nicotinic and muscarinic agonists [PDF]

open access: yesBritish Journal of Pharmacology, 1999
The dose‐response parameters of recombinant mouse adult neuromuscular acetylcholine receptor channels (nAChR) activated by carbamylcholine, nicotine, muscarine and oxotremorine were measured. Rate constants for agonist association and dissociation, and channel opening and closing, were estimated from single‐channel kinetic analysis.
G, Akk, A, Auerbach
openaire   +2 more sources

Nicotine receptor partial agonists for smoking cessation [PDF]

open access: yesSao Paulo Medical Journal, 2007
Nicotine receptor partial agonists may help people to stop smoking by a combination of maintaining moderate levels of dopamine to counteract withdrawal symptoms (acting as an agonist) and reducing smoking satisfaction (acting as an antagonist). Varenicline was developed as a nicotine receptor partial agonist from cytisine, a drug widely used in central
Cahill, Kate   +3 more
openaire   +17 more sources

The effect of amixin and agmatine on cytochrome c release from isolated mitochondria [PDF]

open access: yesThe Ukrainian Biochemical Journal, 2017
Mitochondrial nicotinic acetylcholine receptors (nAChRs) control permeability transition pore formation and cytochrome c release in the presence of apoptogenic factors.
K. R. Uspenska   +3 more
doaj   +1 more source

A photoisomerizable muscarinic antagonist. Studies of binding and of conductance relaxations in frog heart [PDF]

open access: yes, 1982
These experiments employ the photoisomerizable compound, 3,3'-bis- [alpha-(trimethylammonium)methyl]azobenzene (Bis-Q), to study the response to muscarinic agents in frog myocardium. In homogenates from the heart, trans-Bis-Q blocks the binding of [3H]-N-
Birdsall, Nigel J. M.   +5 more
core   +1 more source

Molecular blueprint of allosteric binding sites in a homologue of the agonist-binding domain of the α7 nicotinic acetylcholine receptor

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2015
Significance In this study we take advantage of a recently described chimera of the α7 nicotinic acetylcholine receptor (nAChR) and acetylcholine binding protein (AChBP), termed α7-AChBP.
R. Spurny   +11 more
semanticscholar   +1 more source

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