Abstract
Background: The objective of this research was to screen metabolites with specificity differences in the lung tissue of paraquat-poisoned rats by metabolomics technology and chi-square test method, to provide a theoretical basis for the study of the mechanisms of paraquat poisoning, and to use machine learning technology to construct a paraquat poisoning diagnosis model. This provided an intelligent decision-making method for the diagnosis of paraquat poisoning.
Methods: 18 paraquat-poisoned rats (36 mg/kg) and 16 positive control rats were selected. Lung tissue from each rat from both groups was extracted and analyzed by GC-MS. The chi-square test for feature evaluation was used to screen the difference in specific metabolites in the lung tissue between the paraquat-poisoned rats and the control group, and the SVM classification machine learning algorithm was used to construct an intelligent diagnosis model.
Results: In the end, a total of 14 significant metabolic differences were identified between the two groups (P < 0.05). The sensitivity, specificity, and accuracy of the constructed SVM paraquat poisoning diagnostic model reached 95%, 95% and 96.67%, respectively.
Conclusion: Based on metabolomics technology, the chi-square test for feature evaluation was used to successfully screen the changes of specific metabolites produced in the lungs after paraquat- poisoning, and the diagnosis model based on SVM was constructed to provide an intelligent decision for the diagnosis of paraquat poisoning.
Keywords: Machine learning, SVM, metabolomics, gas chromatography-mass spectrometry, paraquat, poisoning.
[http://dx.doi.org/10.1080/09273948.2019.1640882] [PMID: 31411945]
[http://dx.doi.org/10.3109/01480545.2013.834361] [PMID: 24392656]
[PMID: 26221379]
[http://dx.doi.org/10.1080/02772248.2012.761999]
[PMID: 33296104]
[http://dx.doi.org/10.2131/jts.45.611] [PMID: 33012729]
[http://dx.doi.org/10.1007/s11306-019-1587-1] [PMID: 31506796]
[http://dx.doi.org/10.1007/s11306-019-1611-5] [PMID: 31696341]
[http://dx.doi.org/10.1080/09553002.2020.1704299] [PMID: 31976800]
[http://dx.doi.org/10.1039/C9RA06697G]
[http://dx.doi.org/10.1088/1752-7163/abaeca] [PMID: 32969349]
[http://dx.doi.org/10.1016/j.ijbiomac.2020.05.003] [PMID: 32387363]
[http://dx.doi.org/10.1021/acs.analchem.0c02082] [PMID: 32867500]
[http://dx.doi.org/10.2174/1573412914666180627142952]
[http://dx.doi.org/10.1039/D0AY00968G] [PMID: 33001064]
[http://dx.doi.org/10.1021/acs.chemrestox.8b00328] [PMID: 30807114]
[http://dx.doi.org/10.1007/s13273-019-0049-1]
[http://dx.doi.org/10.1248/bpb.b15-00147] [PMID: 26133715]
[http://dx.doi.org/10.1038/s41598-020-58599-y] [PMID: 32019966]
[http://dx.doi.org/10.1016/j.ejor.2020.03.074]
[http://dx.doi.org/10.1016/j.renene.2020.07.083]
[http://dx.doi.org/10.1016/j.jconhyd.2017.11.002] [PMID: 29174719]
[http://dx.doi.org/10.1021/acs.estlett.9b00476]
[http://dx.doi.org/10.1142/S0218488519500454]
[http://dx.doi.org/10.1007/s10462-017-9611-1]
[PMID: 10666014]
[http://dx.doi.org/10.1620/tjem.203.287] [PMID: 15297733]