期刊
METABOLOMICS
卷 4, 期 1, 页码 30-38出版社
SPRINGER
DOI: 10.1007/s11306-007-0098-7
关键词
metabolic profiling; uncorrelated linear discriminant analysis; biomarker; type 2 diabetes; diabetic coronary heart disease
Type 2 diabetes mellitus (T2DM) and type 2 diabetic coronary heart diseases (T2DM-CHD) are directly associated with metabolism disorder of lipid. In the present study, GC-MS followed by multivariate statistical analysis has been successfully applied to plasma free fatty acid metabolic profiling in T2DM and T2DM-CHD. Because principal component analysis and partial least squares-linear discriminant analysis both failed to the class separation among T2DM, T2DM-CHD, and control, uncorrelated linear discriminant analysis (ULDA) was proposed and successfully discriminated these three groups. The predictive correct rates were 81.03%, 85.37%, 88.89% for control and T2DM, control and T2DM-CHD, T2DM and T2DM-CHD, respectively. Furthermore, three potential biomarkers were screened. ULDA are much more efficient than PCA and PLS for discrimination analysis of complex data set. It is undoubtedly that such newly multivariate analysis method will promote and widen the application of metabonome analysis in disease clinical diagnosis.
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