Evaluation of Brodifacoum-induced Toxicity by Metabonomics Approach Based on HPLC-TOF-MS.
10.3969/j.issn.1004-5619.2017.03.007
- Author:
Hui YAN
1
;
Xian Yi ZHUO
1
;
Bao Hua SHEN
1
;
Ping XIANG
1
;
Min SHEN
1
Author Information
1. Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Institute of Forensic Science, Ministry of Justice, PRC, Shanghai 200063, China.
- Publication Type:Journal Article
- Keywords:
brodifacoum;
forensic toxicology;
high performance liquid chromatography-time of flight mass spectrometry;
metabolomics;
rats
- MeSH:
4-Hydroxycoumarins/toxicity*;
Animals;
Biomarkers/urine*;
Chromatography, High Pressure Liquid/methods*;
Mass Spectrometry;
Metabolomics/methods*;
Principal Component Analysis;
Rats
- From:
Journal of Forensic Medicine
2017;33(3):247-251
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVES:To analyse the metabolic changes in urine of rats with brodifacoum intoxication, and to reveal the molecular mechanism of brodifacoum-induced toxicity on rats.
METHODS:By establishing a brodifacoum poisoning rats model, the urine metabolic profiling data of rats were acquired using high performance liquid chromatography-time of flight mass spectrometry （HPLC-TOF-MS）. The orthogonal partial least squares analysis-discrimination analysis （OPLS-DA） was applied for the multivariate statistics and the discovery of differential metabolites closely related to toxicity of brodifacoum.
RESULTS:OPLS-DA score plot showed that the urinary metabolic at different time points before and after drug administration had good similarity within time period and presented clustering phenomenon. Comparing the urine samples of rats before drug administration with which after drug administration, twenty-two metabolites related to brodifacoum-induced toxicity were selected.
CONCLUSIONS:The toxic effect of brodifacoum worked by disturbing the metabolic pathways in rats such as tricarboxylic cycle, glycolysis, sphingolipid metabolism and tryptophan metabolism, and the toxicity of brodifacoum is characterized of accumulation effect. The metabonomic method based on urine HPLC-TOF-MS can provide a novel insight into the study on molecular mechanism of brodifacoum-induced toxicity.
