Metabolic phenotyping of urine for discriminating alcohol-dependent from social drinkers and alcohol-naive subjects

被引:13
作者
Mostafa, Hamza [1 ]
Amin, Arwa M. [1 ]
Teh, Chin-Hoe [2 ]
Murugaiyah, Vikneswaran [1 ]
Arif, Nor Hayati [3 ]
Ibrahim, Baharudin [1 ]
机构
[1] Univ Sains Malaysia, Sch Pharmaceut Sci, George Town, Malaysia
[2] Bruker Sdn Bhd, Petaling Jaya, Selangor, Malaysia
[3] Hosp Pulau Pinang, Dept Psychiat, George Town, Malaysia
关键词
Alcohol-dependence; Biomarker; Metabolomics; Nuclear magnetic resonance; Urine; ENDOGENOUS ETHANOL; LACTIC-ACIDOSIS; BIOMARKERS; IDENTIFICATION; KETOACIDOSIS; CONSUMPTION; EXCRETION; DISEASE; BREATH;
D O I
10.1016/j.drugalcdep.2016.10.016
中图分类号
R194 [卫生标准、卫生检查、医药管理];
学科分类号
摘要
Background: Alcohol-dependence (AD) is a ravaging public health and social problem. AD diagnosis depends on questionnaires and some biomarkers, which lack specificity and sensitivity, however, often leading to less precise diagnosis, as well as delaying treatment. This represents a great burden, not only on AD individuals but also on their families. Metabolomics using nuclear magnetic resonance spectroscopy (NMR) can provide novel techniques for the identification of novel biomarkers of AD. These putative biomarkers can facilitate early diagnosis of AD. Objectives: To identify novel biomarkers able to discriminate between alcohol-dependent, non-AD alcohol drinkers and controls using metabolomics. Method: Urine samples were collected from 30 alcohol-dependent persons who did not yet start AD treatment, 54 social drinkers and 60 controls, who were then analysed using NMR. Data analysis was done using multivariate analysis including principal component analysis (PCA) and orthogonal partial least square-discriminate analysis (OPLS-DA), followed by univariate and multivariate logistic regression to develop the discriminatory model. The reproducibility was done using intraclass correlation coefficient (ICC). Results: The OPLS-DA revealed significant discrimination between AD and other groups with sensitivity 86.21%, specificity 97.25% and accuracy 94.93%. Six biomarkers were significantly associated with AD in the multivariate logistic regression model. These biomarkers were cis-aconitic acid, citric acid, alanine, lactic acid, 1,2-propanediol and 2-hydroxyisovaleric acid. The reproducibility of all biomarkers was excellent (0.81-1.0). Conclusion: This study revealed that metabolomics analysis of urine using NMR identified AD novel biomarkers which can discriminate AD from social drinkers and controls with high accuracy. (C) 2016 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:80 / 84
页数:5
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