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Nicotinic Acetylcholine Receptors
2003Publisher Summary This chapter deals with nicotinic acetylcholine receptors. Nicotinic acetylcholine receptors (nAChRs) are cholinergic receptors that form ligand-gated ion channels in the plasma membranes of certain neurons and on the postsynaptic side of the neuromuscular junction. As ionotropic receptors, nAChRs are directly linked to ion channels
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Neuronal Nicotinic Acetylcholine Receptors
1996Studies of the structure and function of neuronal nicotinic acetylcholine receptors (AChRs) evolved out of studies of muscle AChRs. This review will begin with a brief summary of muscle type AChRs because they are the archetype for studies of neuronal nicotinic AChRs in particular and ligand-gated ion channels in general.
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Steroids inhibit nicotinic acetylcholine receptors
NeuroReport, 1991Application of progesterone to Xenopus oocytes expressing a cloned neuronal nicotinic acetylcholine (nAChR) revealed two effects. The first effect was a fully reversible reduction of the current induced by acetylcholine (ACh), its onset being nearly instantaneous. The second effect, which developed in a few hours, was an irreversible suppression of ACh-
Bertrand, Daniel +4 more
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Lophotoxin-Insensitive Nematode Nicotinic Acetylcholine Receptors
Journal of Experimental Biology, 1996ABSTRACT Nematode nicotinic acetylcholine receptors (nAChRs) are molecular targets of several anthelmintic drugs. Studies to date on Caenorhabditis elegans and Ascaris suum have demonstrated atypical pharmacology with respect to nAChR antagonists, including the finding that κ-bungarotoxin is a more effective antagonist than α ...
Tornøe, Camilla +5 more
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Nicotinic Acetylcholine Receptors and Epilepsy
Current Drug Target -CNS & Neurological Disorders, 2002The neuronal nicotinic acetylcholine receptors (nAChRs) have multiple roles in the brain: they are involved in signal transduction by fast synaptic transmission, axo-axonic transmission, and in the modulation of presynaptic transmitter release. Presynaptic nAChRs can increase the release of excitatory as well as of inhibitory transmitters, and can ...
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Nicotinic Acetylcholine Receptors and Imaging
Current Pharmaceutical Design, 2000In vivo imaging techniques like positron emission tomography (PET) and single photon emission computed tomography (SPECT) offer the possibility to monitor human central nicotinic acetylcholine receptors (nAChRs) in a variety of central nervous system disorders. In the past, the only available PET radiotracer for imaging nAChRs in the human brain, [11C]-
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The Nicotinic Acetylcholine Receptor
1985The acetylcholine receptor (AcChR) from Torpedo electroplax has been isolated both in its native membrane-bound state and by affinity chromatography after solubilization (see Conti-Tronconi and Raftery, 1982). Purified membrane fragments can reseal, forming closed, right-side-out vesicles, which can be used for both functional and structural studies ...
Michael A. Raftery +4 more
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Nicotinic Acetylcholine Receptor Modulators
2014Nicotine and its pharmacology have long been associated with schizophrenia and its epidemiology and treatment. Schizophrenics use nicotine in its major delivery form of cigarettes at a significantly higher incidence than the general population (80–90% vs.
Anatoly Mazurov, Daniel Yohannes
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