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Metabolic profiling and population screening of analgesic usage in nuclear magnetic resonance spectroscopy-based large-scale epidemiologic studies

Loo, Ruey Leng, Coen, Muireann, Ebbels, Timothy, Cloarec, Olivier, Maibaum, Elaine, Bictash, Magda, Yap, Ivan K. S., Elliott, Paul, Stamler, Jeremiah, Nicholson, Jeremy K., and others. (2009) Metabolic profiling and population screening of analgesic usage in nuclear magnetic resonance spectroscopy-based large-scale epidemiologic studies. Analytical Chemistry, 81 (13). pp. 5119-5129. ISSN 0003-2700. (doi:10.1021/ac900567e)

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Abstract

The application of a 1H nuclear magnetic resonance (NMR) spectroscopy-based screening method for determining the use of two widely available analgesics (acetaminophen and ibuprofen) in epidemiologic studies has been investigated. We used samples and data from the cross-sectional INTERMAP Study involving participants from Japan (n = 1145), China (n = 839), U.K. (n = 501), and the U.S. (n = 2195). An orthogonal projection to latent structures discriminant analysis (OPLS-DA) algorithm with an incorporated Monte Carlo resampling function was applied to the NMR data set to determine which spectra contained analgesic metabolites. OPLS-DA preprocessing parameters (normalization, bin width, scaling, and input parameters) were assessed systematically to identify an optimal acetaminophen prediction model. Subsets of INTERMAP spectra were examined to verify and validate the presence/absence of acetaminophen/ibuprofen based on known chemical shift and coupling patterns. The optimized and validated acetaminophen model correctly predicted 98.2%, and the ibuprofen model correctly predicted 99.0% of the urine specimens containing these drug metabolites. The acetaminophen and ibuprofen models were subsequently used to predict the presence/absence of these drug metabolites for the remaining INTERMAP specimens. The acetaminophen model identified 415 out of 8436 spectra as containing acetaminophen metabolite signals while the ibuprofen model identified 245 out of 8604 spectra as containing ibuprofen metabolite signals from the global data set after excluding samples used to construct the prediction models. The NMR-based metabolic screening strategy provides a new objective approach for evaluation of self-reported medication data and is extendable to other aspects of population xenometabolome profiling.

Item Type: Article
DOI/Identification number: 10.1021/ac900567e
Uncontrolled keywords: Coupling pattern, Drug metabolites, Epidemiologic-study, Global data, Ibuprofen metabolites, Input parameter, Metabolic profiling, MONTE CARLO, NMR data, Orthogonal projection, Prediction model, Presence/absence, Resampling, Screening methods, Screening strategy, Biomolecules, Discriminant analysis, Metabolites, Nuclear magnetic resonance, Nuclear magnetic resonance spectroscopy, Population statistics, Resonance, Metabolism, drug metabolite, ibuprofen, paracetamol, adult, algorithm, article, China, controlled study, discriminant analysis, drug metabolism, epidemiological data, female, human, human experiment, Japan, latent structure analysis, male, mathematical model, Monte Carlo method, normal human, nuclear magnetic resonance spectroscopy, predictive validity, proton nuclear magnetic resonance, screening, United Kingdom, United States, urinalysis, urine, Acetaminophen, Adult, Analgesics, Discriminant Analysis, Epidemiologic Studies, Female, Humans, Ibuprofen, Magnetic Resonance Spectroscopy, Male, Metabolome, Middle Aged, Predictive Value of Tests
Subjects: Q Science
Divisions: Faculties > Sciences > Medway School of Pharmacy
Depositing User: Rueyleng Loo
Date Deposited: 14 Nov 2013 22:21 UTC
Last Modified: 29 May 2019 11:22 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/36452 (The current URI for this page, for reference purposes)
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