Results 21 to 30 of about 2,143 (224)

6-Bromohypaphorine from Marine Nudibranch Mollusk Hermissenda crassicornis is an Agonist of Human α7 Nicotinic Acetylcholine Receptor

open access: yesMarine Drugs, 2015
6-Bromohypaphorine (6-BHP) has been isolated from the marine sponges Pachymatisma johnstoni, Aplysina sp., and the tunicate Aplidium conicum, but data on its biological activity were not available.
Igor E. Kasheverov   +7 more
doaj   +1 more source

Soil nematode Caenorhabditis elegans Maupas as a convenient model organism to study anthelmintic activity of plant extracts [PDF]

open access: yesE3S Web of Conferences, 2020
The article deals with the study of the possibility to use free-living soil nematode C. elegans in researches of anthelmintic activity of plant raw material. A. sativum juice and aqueous extract of T. vulgare flowers were used in experiments. It is shown
Egorova Anastasia   +4 more
doaj   +1 more source

Molecular adsorption study of nicotine and caffeine on the single-walled carbon nanotube from first principles [PDF]

open access: yesSolid State Communications, v.167, pp.27 - 30 (2013), 2012
Using first-principles calculations, we investigate the electronic structures and binding properties of nicotine and caffeine adsorbed on single-walled carbon nanotubes to determine whether CNTs are appropriate for filtering or sensing nicotine and caffeine molecules. We find that caffeine adsorbs more strongly than nicotine.
arxiv   +1 more source

Manipulation of Chemistry and Biology with Visible Light Using Tetra‐ortho‐Substituted Azobenzenes and Azonium Ions

open access: yesAngewandte Chemie, EarlyView.
Tetra‐ortho‐Azobenzenes (TOABs) in broad daylight: in recent years, TOAB photoswitches became indispensable tools for all‐visible‐light manipulation of chemistry, biology and materials. This review explores their unique photochemical properties, design and synthetic approaches, offering support in choosing a TOAB for a given application.
Francesca Cardano   +2 more
wiley   +2 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

Single Molecule Transistor based Nanopore for the detection of Nicotine [PDF]

open access: yesJournal of Applied Physics 116, 244307 (2014), 2015
A nanopore based detection methodology was proposed and investigated for the detection of Nicotine. This technique uses a Single Molecular Transistor (SMT) working as a nanopore operational in the Coulomb Blockade regime. When the Nicotine molecule is pulled through the nanopore area surrounded by the Source(S), Drain(D) and Gate electrodes, the charge
arxiv   +1 more source

The nicotinic acetylcholine receptors of the parasitic nematode Ascaris suum: formation of two distinct drug targets by varying the relative expression levels of two subunits. [PDF]

open access: yesPLoS Pathogens, 2009
Parasitic nematodes are of medical and veterinary importance, adversely affecting human health and animal welfare. Ascaris suum is a gastrointestinal parasite of pigs; in addition to its veterinary significance it is a good model of the human parasite ...
Sally M Williamson   +7 more
doaj   +1 more source

Agonist activation of a nicotinic acetylcholine receptor [PDF]

open access: yesNeuropharmacology, 2015
How does an agonist activate a receptor? In this article I consider the activation process in muscle nicotinic acetylcholine receptors (AChRs), a prototype for understanding the energetics of binding and gating in other ligand-gated ion channels. Just as movements that generate gating currents activate voltage-gated ion channels, movements at binding ...
openaire   +3 more sources

Silent agonists for α7 nicotinic acetylcholine receptors

open access: yesPharmacological Research, 2023
We discuss models for the activation and desensitization of α7 nicotinic acetylcholine receptors (nAChRs) and the effects of efficacious type II positive allosteric modulators (PAMs) that destabilize α7 desensitized states. Type II PAMs such as PNU-120596 can be used to distinguish inactive compounds from silent agonists, compounds that produce little ...
Roger L. Papke   +2 more
openaire   +3 more sources

Conceptual and organizational barriers to quantitative systems pharmacology modeling of pathophysiological systemic drug hypotheses

open access: yes, 2022
CPT: Pharmacometrics &Systems Pharmacology, Volume 11, Issue 12, Page 1556-1559, December 2022.
Ronald Gieschke, Robert Carr
wiley   +1 more source

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