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MODULATION OF CARCINOGEN-METABOLIZING ENZYME BY MADINAH MINT (Mentha spp) IN RAT LIVER
Abdulrahman L Al-Malki1,2,3, Elie K Barbour3,4, Huwait Ea1,2,5
1Department of Biochemistry, Faculty of Science, King Abdulaziz University (KAU), P.O Box 80203, Jeddah, Saudi Arabia.
Background:
The present study was undertaken to assess whether boiling water mint extract (BWME) modulates the cytochrome P450 mixed function oxidase system.
Materials And Methods:
Male albino rats were randomly divided into two groups, comprising 12 animals each. The first group served as control, whereas the second was maintained on BWME (10 % w/v) as its sole drinking liquid for six weeks. Liver microsomal were separated and subjected for phase I and II enzymes (cytochrome P450 mixed function oxidase) analysis.
Results:
The results obtained showed that, BWME caused a significant elevation in the activity of epoxide hydrolase (p<0.001) when compared with the control. However, glutathione S-transferase and glucuronosyl transferase activities were significantly decreased (p<0.001 and p<0.01) respectively compared with control. The mutagenic activity of N-nitrosopiperidine was lower in the mint-treated hepatic microsomal compared with the controls.
Conclusion:
It can be concluded that BWME has the potential to suppress the activity of cytochrome enzymes involved in the bio-activation of chemical carcinogen; hence may display chemo preventive activity.