Results 261 to 270 of about 76,604 (307)

Nicotinic Acetylcholine Receptor Assays

Current Protocols in Pharmacology, 1999
AbstractNicotinic acetylcholine receptors (nAChRs) in peripheral tissues are localized almost exclusively to autonomic nerves and the motor end plates of striated musculature. Pharmacologic analyses of nicotinic receptor antagonist potencies can be conducted by assessing the ability of these compounds to inhibit responses elicited by preganglionic ...
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Nicotinic acetylcholine receptors in a songbird brain

Journal of Comparative Neurology, 2022
AbstractNicotinic acetylcholine receptors (nAChRs) are ligand‐gated ion channels that mediate fast synaptic transmission and cell signaling, which contribute to learning, memory, and the execution of motor skills. Birdsong is a complex learned motor skill in songbirds.
Norman Chinweike Asogwa, Noriyuki Toji, Ziwei He, Chengru Shao, Yukino Shibata, Shoji Tatsumoto, Hiroe Ishikawa, Yasuhiro Go, Kazuhiro Wada   +8 more
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Nicotinic Acetylcholine Receptors and Epilepsy

Current Drug Target -CNS & Neurological Disorders, 2002
The 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

2003
Publisher 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

1996
Studies 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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Nicotinic Acetylcholine Receptors and Imaging

Current Pharmaceutical Design, 2000
In 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 paradox of nicotinic acetylcholine receptor upregulation by nicotine

Trends in Pharmacological Sciences, 1990
Abstract Chronic exposure to agonist (or conditions that increase the synaptic concentration of the natural transmitter, such as blockade of inactivation mechanisms) results in a downregulation of the target receptor. Conversely, chronic exposure to antagonist (or conditions that decrease the synaptic concentration of transmitter, including ...
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Immunology of the Nicotinic Acetylcholine Receptor

1979
The classical surface antigens of Enterobacteriaceae: 0, K, and H antigens have been studied extensively in the past and have provided a basis for the taxonomy of this family (Kauffmann, 1966, 1975). In comparison to the vast knowledge accumulated on the structure, localization, genetic determination, and biologic effects of O and K antigens (Weinbaum ...
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Toxin insights into nicotinic acetylcholine receptors

Biochemical Pharmacology, 2006
Venomous species have evolved cocktails of bioactive peptides to facilitate prey capture. Given their often exquisite potency and target selectivity, venom peptides provide unique biochemical tools for probing the function of membrane proteins at the molecular level.
Dutertre, S., Lewis, R. J.
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Protein Phosphorylation of Nicotinic Acetylcholine Receptor

Critical Reviews in Biochemistry and Molecular Biology, 1989
The nicotinic acetylcholine receptor (nAcChR) is a ligand-gated ion channel found in the postsynaptic membranes of electric organs, at the neuromuscular junction, and at nicotinic cholinergic synapses of the mammalian central and peripheral nervous system.
R L, Huganir, K, Miles
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