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Updated: Jul 16, 2026

Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter
Published on: May 29, 2019
DNA damage, a biomarker of carcinogenesis: its measurement and modulation by diet and environment
Eun-Sun Hwang1, Phyllis E Bowen
1Department of Human Nutrition, University of Illinois at Chicago. Chicago, IL, 60612, USA.
Abstract:
Free radicals and other reactive oxygen or nitrogen species are constantly generated in vivo and can cause oxidative damage to DNA. This damage has been implicated to be important in many diseases, including cancer. The assessment of damage in various biological matrices, such as tissues, cells, and urine, is vital to understanding this role and subsequently devising intervention strategies. During the last 20 years, many analytical techniques have been developed to monitor oxidative DNA base damage. High-performance liquid chromatography-electrochemical detection and gas chromatography-mass spectrometry are the two pioneering contributions to the field. Currently, the arsenal of methods available include the promising high-performance liquid chromatography-tandem mass spectrometry technique, capillary electrophoresis, 32P-postlabeling, antibody-base immunoassays, and assays involving the use of DNA repair glycosylases such as the comet assay. The objective of this review is to discuss the biological significance of oxidative DNA damage, evaluate the effectiveness of several techniques for measurement of oxidative DNA damage in various biological samples and review current research on factors (dietary and non-dietary) that influence DNA oxidative damage using these techniques.
Insights
Oxidative DNA damage, caused by reactive species, is linked to diseases like cancer. This review evaluates analytical techniques for measuring this damage and factors influencing it.
Area of Science:
- Biochemistry
- Molecular Biology
- Toxicology
Background:
- Reactive oxygen and nitrogen species cause in vivo oxidative DNA damage.
- This damage is implicated in various diseases, including cancer.
- Assessing DNA damage in tissues, cells, and urine is crucial for understanding its role and developing interventions.
Purpose of the Study:
- To discuss the biological significance of oxidative DNA damage.
- To evaluate analytical techniques for measuring oxidative DNA damage in biological samples.
- To review factors influencing DNA oxidative damage.
Main Methods:
- High-performance liquid chromatography-electrochemical detection (HPLC-ECD).
- Gas chromatography-mass spectrometry (GC-MS).
- High-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS).
- Capillary electrophoresis (CE).
- 32P-postlabeling.
- Antibody-based immunoassays.
- DNA repair glycosylase assays (e.g., comet assay).
Main Results:
- Various analytical techniques have been developed over the past 20 years.
- HPLC-ECD and GC-MS are pioneering methods.
- HPLC-MS/MS, CE, 32P-postlabeling, immunoassays, and comet assays are current methods.
- These techniques allow monitoring of oxidative DNA base damage in diverse biological matrices.
Conclusions:
- Oxidative DNA damage is biologically significant and linked to diseases.
- A range of analytical techniques are available for its assessment.
- Understanding influencing factors is key for intervention strategies.
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