RT info:eu-repo/semantics/article
T1 Investigation on the combined effect of cocaine and ethanol administration through a liquid chromatography-mass spectrometry metabolomics approach
A1 Sánchez López, Elena
A1 Marcos González, Alberto
A1 Ambrosio, Emilio
A1 Mayboroda, Oleg A.
A1 Marina Alegre, María Luisa
A1 Crego Navazo, Antonio Luis
K1 Cocaine
K1 Drug dependence
K1 Ethanol
K1 Metabolomics
K1 Liquid chromatography mass spectrometry
K1 Rat plasma
K1 Química
K1 Chemistry
AB Alcohol is the most widely consumed legal drug, whereas cocaine is the illicit psychostimulant most commonly used in Europe. The combined use of alcohol and cocaine is frequent among drug-abuse consumers and leads to further exacerbation of health consequences compared to individual consumption. The pharmacokinetic and metabolic interactions leading to an increase in their combined toxicity still remains poorly understood. Here, the first metabolomics study of combined cocaine and ethanol chronic exposure effects is reported. A Liquid Chromatography strategy based on sample derivatization with 9-fluorenylmethyloxycarbonyl chloride and using a C18 column coupled to high resolution Mass Spectrometry (time of flight analyzer) was employed to analyze plasma from rats exposed intravenously to these drugs in a 52-min analysis. Using a combination of non-supervised and supervised multivariate analysis the metabolic differences between our experimental groups were explored and unraveled. A comparative analysis of the individual models and their variable importance in the projection values have shown that every experiment intervention includes a subset of specific metabolites. Eleven of these metabolites were annotated, where eight were unequivocally identified using standards and three were tentatively identified by matching the MS/MS spectra to libraries. The results demonstrated that the affected metabolic pathways were mainly those related to the metabolism of different amino acids. (C) 2017 Elsevier B.V. All rights reserved.
SN 0731-7085
YR 2017
FD 2017-06-05
LK http://hdl.handle.net/10017/48161
UL http://hdl.handle.net/10017/48161
LA eng
DS MINDS@UW
RD 02-may-2024