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A General Method for Detecting Nitrosamide Formation in the In Vitro Metabolism of Nitrosamines by Cytochrome P450s
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Chapters
- 00:05Title
- 00:46Preparation of Nitrosamide Positive Control
- 03:07Nitrosamine-P450 In Vitro Incubation
- 04:58Results: Nitrosamide Standard Preparation and In Vitro Incubation
- 06:19Conclusion
α-hydroxylation of carcinogenic nitrosamines by cytochrome P450s is the accepted metabolic pathway that produces DNA-damaging intermediates, which cause mutations. However, new data indicates further oxidation to nitrosamides can occur. We describe a general method for detecting nitrosamides produced from in vitro cytochrome P450-catalyzed metabolism of nitrosamines.
