Results 21 to 30 of about 5,143,045 (401)
Effects of solvent and structure on the reactivity of 2-substituted nicotinic acids with diazodiphenylmethane in aprotic solvents [PDF]
Journal of the Serbian Chemical Society, 2012 The rate constants for the reactions of diazodiphenylmethane (DDM) with 2-substituted nicotinic acids in nine aprotic solvents at 30°C were determined. The obtained second order rate constants in aprotic solvents, were correlated using the Kamlet-Taft
Drmanić Saša Ž. +2 more
doaj +1 more source
Identification of critical residues in loop E in the 5-HT(3AS)R binding site [PDF]
, 2002 BACKGROUND: The serotonin type 3 receptor (5-HT(3)R) is a member of a superfamily of ligand gated ion channels. All members of this family share a large degree of sequence homology and presumably significant structural similarity.
Joshi, Prasad R +4 more
core +3 more sources
Journal of Dairy Science, 1992 Forty multiparous Holstein cows were assigned to one of four treatments 15 d postpartum according to milk yield during wk 2 postpartum to examine the effects of supplementing niacin, Ca salts of long-chain fatty acids, and their interaction.
P. Erickson, M. Murphy, J. H. Clark
semanticscholar +1 more source
Polish Journal of Food and Nutrition Sciences, 2018 Proximate composition, profiles of amino acids, sugars, organic acids, vitamins and minerals of fourteen Turkish hazelnut varieties harvested in 2013 and 2014 were investigated.
Taş Neslihan Göncüoğlu +1 more
doaj +1 more source
A Hydrophobic Gate in an Ion Channel: The Closed State of the Nicotinic Acetylcholine Receptor [PDF]
Physical Biology, 3(2):147-159, 2006, 2005 The nicotinic acetylcholine receptor (nAChR) is the prototypic member of the `Cys-loop' superfamily of ligand-gated ion channels which mediate synaptic neurotransmission, and whose other members include receptors for glycine, gamma-aminobutyric acid, and serotonin.
arxiv +1 more source
Alzheimer’s Disease as a Membrane Disorder: Spatial Cross-Talk Among Beta-Amyloid Peptides, Nicotinic Acetylcholine Receptors and Lipid Rafts [PDF]
, 2019 Biological membranes show lateral and transverse asymmetric lipid distribution. Cholesterol (Chol) localizes in both hemilayers, but in the external one it is mostly condensed in lipid-ordered microdomains (raft domains), together with saturated ...
Antollini, Silvia Susana +1 more
core +1 more source
Química Nova, 2006 A reverse phase liquid chromatography method was developed for simultaneous determination of trigonelline, caffeine, nicotinic and chlorogenic (5-CQA) acids in roasted coffee.
Sandriel Trindade Alves +3 more
doaj +1 more source
Journal of Chemistry, 2020 The influence of altitude on caffeine, 5-caffeoylquinic acid (5-CQA), and nicotinic acid contents of Arabica coffee varieties grown in Southwest Ethiopia was investigated.
Bealu Girma, Abera Gure, Feyisa Wedajo
doaj +1 more source
Antioxidants, 2022 Coffee is one of the most popular beverages in the world. Therefore, this study analyzed 49 coffee samples of Arabica and Robusta species of different geographical origins and the treatment of beans including three degrees of roasting with the use of LC ...
Magdalena Jeszka-Skowron +3 more
doaj +1 more source
Resolution of complex fluorescence spectra of lipids and nicotinic acetylcholine receptor by multivariate analysis reveals protein-mediated effects on the receptor's immediate lipid microenvironment [PDF]
PMC Biophysics 2008, 1:6, 2009 Analysis of fluorescent spectra from complex biological systems containing various fluorescent probes with overlapping emission bands is a challenging task. Valuable information can be extracted from the full spectra, however, by using multivariate analysis (MA) of measurements at different wavelengths.
arxiv +1 more source