Results 61 to 70 of about 481,268 (346)

Nicotine addiction : a review [PDF]

, 2013
Nicotine, the major psychoactive compound in tobacco, acts as a potent addictive drug in humans. The addictive nature of nicotine leads to more than 6 million deaths a year.
Di Giovanni, Giuseppe, Vella, Jacob
core   +1 more source

Nicotinic potentiation of frog retinotectal transmission in tectum layer F by α3β2, α4β2, α2β4, α6β2, or α7 acetylcholine receptor subtypes

Medicina, 2015
Objective: The aim of the study was to explore the effect of semi-specific antagonists and agonists of the nicotinic acetylcholine receptors on the paired-pulse facilitation and nicotinic tonic and phasic potentiation of the frog retinotectal synaptic ...
Armuntas Baginskas, Vilija Kuraitė, Antanas Kuras   +2 more
doaj   +1 more source

Neuroreceptor Activation by Vibration-Assisted Tunneling [PDF]

Scientific Reports 5, Article number: 9990 Published 2015, 2015
G protein-coupled receptors (GPCRs) constitute a large family of receptor proteins that sense molecular signals on the exterior of a cell and activate signal transduction pathways within the cell. Modeling how an agonist activates such a receptor is fundamental for an understanding of a wide variety of physiological processes and it is of tremendous ...
arxiv   +1 more source

Critical Role of CA1 Nicotinic Receptors on Memory Acquisition Deficit Under Induction of Total Sleep Deprivation and REM Sleep Deprivation

International Clinical Neuroscience Journal, 2018
Background: Sleep disorder or sleep deprivation (SD) is a common issue in today’s society. Numerous evidences show that sleep is essential for proper brain performance and cognitive processes; on the other hand, cognitive functions have a broad range ...
Bibi-Zahra Javad-Moosavi, Gholamhassan Vaezi, Mohammad Nasehi, Seyed-Ali Haeri-Rouhani, Mohammad-Reza Zarrindast   +4 more
doaj   +1 more source

Polyunsaturated fatty acids inhibit a pentameric ligand-gated ion channel through one of two binding sites

eLife, 2022
Polyunsaturated fatty acids (PUFAs) inhibit pentameric ligand-gated ion channels (pLGICs) but the mechanism of inhibition is not well understood. The PUFA, docosahexaenoic acid (DHA), inhibits agonist responses of the pLGIC, ELIC, more effectively than ...
Noah M Dietzen, Mark J Arcario, Lawrence J Chen, John T Petroff II, K Trent Moreland, Kathiresan Krishnan, Grace Brannigan, Douglas F Covey, Wayland WL Cheng   +8 more
doaj   +1 more source

Nicotinic agonist binding site mapped by methionine- and tyrosine-scanning coupled with azidochloropyridinyl photoaffinity labeling.

Journal of Medicinal Chemistry, 2009
Agonists activating nicotinic acetylcholine receptors (nAChR) include potential therapeutic agents and also toxicants such as epibatidine and neonicotinoid insecticides with a chloropyridinyl substituent.
M. Tomizawa, T. Talley, John F. Park, D. Maltby, K. Medzihradszky, K. A. Durkin, J. Cornejo-Bravo, A. Burlingame, J. Casida, P. Taylor   +9 more
semanticscholar   +1 more source

Therapeutic Targeting of the α7 Nicotinic Receptor: Challenges and Prospects for Cognitive Improvement in Alzheimer's and Schizophrenia [PDF]

Basic Clin Pharmacol Toxicol
ABSTRACT The α7 nicotinic acetylcholine receptor (α7 nAChR) has emerged as a key target for treating cognitive dysfunction in neurological disorders such as Alzheimer's disease (AD) and schizophrenia. α7 nAChRs play essential roles in neurotransmission, neuroinflammation and synaptic plasticity, not only in neurons but also in glial cells, where they ...
Magnussen J.
europepmc   +2 more sources

Structurally similar allosteric modulators of α7 nicotinic acetylcholine receptors exhibit five distinct pharmacological effects. [PDF]

, 2015
Activation of nicotinic acetylcholine receptors (nAChRs) is associated with the binding of agonists such as acetylcholine to an extracellular site that is located at the interface between two adjacent receptor subunits.
D'Oyley, JM, Dhankher, P, Gill-Thind, JK, Millar, NS, Sheppard, TD   +4 more
core  

Loop B is a major structural component of the 5-HT3 receptor [PDF]

, 2008
The 5-HT3 receptor belongs to a family of therapeutically important neurotransmitter-gated receptors whose ligand binding sites are formed by the convergence of six peptide loops (A-F).
A.J. Thompson, Beene, Brejc, Bylund, Cashin, Celie, Celie, Chakrapani, Chen, Dellisanti, Fitch, Hilf, Jordan, Joshi, Kunkel, Lummis, M. Lochner, Mukhtasimova, Padgett, Price, Price, Reeves, S.C.R. Lummis, Sali, Spier, Spier, Sullivan, Thompson, Thompson, Thompson, Thompson, Unwin, Unwin, Weiner, Yan, Zhong   +35 more
core   +3 more sources

Interfacial Photoelectrochemistry in Organic Synthesis

Angewandte Chemie International Edition, Accepted Article.
Photoelectrodes have traditionally enjoyed widespread attention as heterogeneous catalysts for the activation of water and CO2 in energy research, while photoelectrochemistry with homogeneous molecular catalysts dominates the activations of more complex molecules in organic synthesis.
Gabriel Chan, Daria Corsi, Oleksandr Savateev, Paolo Giusto, Joshua Philip Barham   +4 more
wiley   +1 more source