Results 51 to 60 of about 77,143 (337)

Conformation of acetylcholine bound to the nicotinic acetylcholine receptor. [PDF]

Proceedings of the National Academy of Sciences, 1988
We report here the biologically active conformation of acetylcholine when bound to the high-affinity state of the receptor from Torpedo californica. The acetylcholine conformation was determined in the free and bound states by proton NMR two-dimensional nuclear Overhauser effects. In agreement with x-ray crystallographic data, acetylcholine in solution
Tetsuo Yamane, Ronald W. Behling, Gil Navon, Lynn W. Jelinski   +3 more
openaire   +3 more sources

Intraoral Drug Delivery: Bridging the Gap Between Academic Research and Industrial Innovations

Advanced Functional Materials, EarlyView.
Intraoral drug delivery offers a promising route for systemic and localized therapies, yet challenges such as enzymatic degradation, limited permeability, and microbial interactions hinder efficacy. This figure highlights innovative strategies—mucoadhesive materials, enzyme inhibitors, and permeation enhancers—to overcome these barriers.
Soheil Haddadzadegan, Simona Summonte, Fabrizio Ricci, Matthias Sandmeier, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

Nicotinic acetylcholine receptors in the synganglion of the tick Ixodes ricinus: Functional characterization using membrane microtransplantation

International Journal for Parasitology: Drugs and Drug Resistance, 2020
Nicotinic acetylcholine receptors are an important class of excitatory receptors in the central nervous system of arthropods. In the ticks Ixodes ricinus, the functional and pharmacological properties of nicotinic receptors located in their neurons are ...
Anaïs Le Mauff, Hamza Chouikh, Alison Cartereau, Claude L. Charvet, Cédric Neveu, Claude Rispe, Olivier Plantard, Emiliane Taillebois, Steeve H. Thany   +8 more
doaj  

Nicotinic α7 acetylcholine receptor-mediated currents are not modulated by the tryptophan metabolite kynurenic acid in adult hippocampal interneurons [PDF]

, 2012
The tryptophan metabolite, kynurenic acid (KYNA), is classically known to be an antagonist of ionotropic glutamate receptors. Within the last decade several reports have been published suggesting that KYNA also blocks nicotinic acetylcholine receptors (nAChRs) containing the \alpha7 subunit (\alpha7*).
arxiv   +1 more source

Long-Range Coupling in an Allosteric Receptor Revealed by Mutant Cycle Analysis [PDF]

, 2009
The functional coupling of residues that are far apart in space is the quintessential property of allosteric proteins. For example, in Cys-loop receptors, the gating of an intrinsic ion channel is allosterically regulated by the binding of small molecule
Dougherty, Dennis A., Frazier, Shawnalea J., Gleitsman, Kristin R., Lester, Henry A., Shanata, Jai A. P.   +4 more
core   +2 more sources

Mussel‐Inspired Molecular Strategies for Fabricating Functional Materials With Underwater Adhesion and Self‐Healing Properties

Advanced Materials, EarlyView.
This review systematically examines the nanomechanical mechanisms of mussel‐inspired molecular interactions, primarily investigated by direct force measurement techniques such as surface forces apparatus and atomic force microscopy. The macroscopic adhesive and self‐healing performances of mussel‐inspired functional materials, including coacervates ...
Pan Huang, Hongjian Zhang, Hongbo Zeng
wiley   +1 more source

DRD2/CHRNA5 interaction on prefrontal biology and physiology during working memory. [PDF]

PLoS ONE, 2014
Prefrontal behavior and activity in humans are heritable. Studies in animals demonstrate an interaction between dopamine D2 receptors and nicotinic acetylcholine receptors on prefrontal behavior but evidence in humans is weak.
Annabella Di Giorgio, Ryan M Smith, Leonardo Fazio, Enrico D'Ambrosio, Barbara Gelao, Aldo Tomasicchio, Pierluigi Selvaggi, Paolo Taurisano, Tiziana Quarto, Rita Masellis, Antonio Rampino, Grazia Caforio, Teresa Popolizio, Giuseppe Blasi, Wolfgang Sadee, Alessandro Bertolino   +15 more
doaj   +1 more source

The MX-Helix of Muscle nAChR Subunits Regulates Receptor Assembly and Surface Trafficking. [PDF]

, 2020
Nicotinic acetylcholine receptors (AChRs) are pentameric channels that mediate fast transmission at the neuromuscular junction (NMJ) and defects in receptor expression underlie neuromuscular disorders such as myasthenia gravis and congenital myasthenic ...
Borges, Lucia Soares, Ferns, Michael, Rudell, Jolene Chang, Yarov-Yarovoy, Vladimir   +3 more
core  

Evolution of vertebrate nicotinic acetylcholine receptors

BMC Evolutionary Biology, 2019
Many physiological processes are influenced by nicotinic acetylcholine receptors (nAChR), ranging from neuromuscular and parasympathetic signaling to modulation of the reward system and long-term memory. Due to the complexity of the nAChR family and variable evolutionary rates among its members, their evolution in vertebrates has been difficult to ...
Julia E. Pedersen, Christina A. Bergqvist, Dan Larhammar   +2 more
openaire   +5 more sources

Harnessing Photo‐Energy Conversion in Nanomaterials for Precision Theranostics

Advanced Materials, EarlyView.
Harnessing photo‐energy conversion in nanomaterials enables precision theranostics through light‐driven mechanisms such as photoluminescence, photothermal, photoelectric, photoacoustic, photo‐triggered surface‐enhanced Raman scattering (SERS), and photodynamic processes. This review explores six fundamental principles of photo‐energy conversion, recent
Jingyu Shi, Yadi Fan, Qin Zhang, Yingying Huang, Mo Yang   +4 more
wiley   +1 more source