Studies on the acute toxicity of model toxins by proton magnetic resonance spectroscopy of urine combined with two-step cluster analysis

被引：4

作者：

Wu, HF ^{[1
]}

Zhang, XY ^{[1
]}

Li, XJ ^{[1
]}

Liao, PQ ^{[1
]}

Li, WS ^{[1
]}

Li, ZF ^{[1
]}

Wu, YJ ^{[1
]}

Pei, FK ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2006年 / 34卷 / 01期

关键词：

urine; nuclear magnetic resonance; toxicity; pattern recognition; two-step cluster analysis;

D O I：

10.1016/S1872-2040(06)60004-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

H-1 nuclear magnetic resonance (NMR) spectroscopy and two-step cluster analysis have been used to investigate the acute toxicity of model toxins. Male Wistar rats were treated with following model toxins, alpha-naphthyl isothioyanate (ANIT) and 2-bromoethanamine hydrobromide (BEA). Urine samples from the rats dosed with these two compounds were collected over a course of 24 h and analyzed at 600 MHz H-1 NMR spectra. Each NMR spectrum was dataprocessed to provide 148 intensity-related descriptors of spectra. Urinary spectral data were analyzed by two-step cluster analysis (TSCA) methods and successful classification of the toxicities of model toxins was achieved. The NMR markers of various toxicities induced by model toxins were also clearly provided by TSCA. The combination of NMR and TSCA can be applied to the detection for the NMR markers of novel toxicities and prediction for the toxicities of other compounds.

引用

页码：21 / 25

页数：5

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