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Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter
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Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter
1Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas,Universidade de São Paulo, 2Departamento de Farmacociências,Universidade Federal de Ciências da Saúde de Porto Alegre, 3Laboratório de Poluição Atmosfêrica Experimental – LIM05, Hospital das Clínicas, Faculdade de Medicina,Universidade de São Paulo, 4Instituto de Estudos Avançados,Universidade de São Paulo, 5Departamento de Bioquímica, Instituto de Química,Universidade de São Paulo
Chapters
- 00:04Title
- 01:20DNA Extraction
- 04:18Quantification by HPLC-UV and Solid Phase Extraction for Analyses
- 06:20Quantification by HPLC-ESI-MS/MS
- 09:19Quantification of the DNA Lesions
- 10:36Results: HPLC-UV and HPLC-ESI-MS/MS Analyses
- 11:25Conclusion
We describe here methods for sensitive and accurate quantification of the lesions 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodGuo), 1,N6-etheno-2'-deoxyadenosine (1,N6-dAdo) and 1,N2-etheno-2'-deoxyguanosine (1,N2-dGuo) in DNA. The methods were applied to the assessment of the effects of ambient fine particulate matter (PM2.5) in tissues (lung, liver and kidney) of exposed A/J mice.
