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Published on: December 28, 2016
Protective Effects of Tomato Juice on Mouse Skin Carcinogenesis
1Dept. of Cancer Chemoprevention, Chittaranjan National Cancer Institute, Calcutta- 7000 26, India sukta2001@rediffmail.com
Abstract:
The anticarcinogenic effect of tomato juice, a natural source of antioxidants and other chemopreventive / antimutagenic agents, was studied in a skin carcinogenesis model in mice. The possible mode of action was also investigated. Oral administration of tomato juice afforded protection from development of skin tumour and increased life expectancy which may be attributed to the combined action of a number of chemical compounds with cancer chemopreventive properties present in tomato. The protective role may be associated with a decreased level of lipid peroxides noted in the tomato treated group and modulation of host detoxification enzymes. Exposure to the carcinogen resulted in a depression of the liver enzymes- glutathione-S-transferase (GST), glutathione peroxidase (GPx) and superoxide dismutase (SOD). Oral administration of tomato juice resulted in significant activation of all these enzymes (p<0.001). These results suggest a preventive role of tomato juice during carcinogenesis which is mediated possibly by their modulatory effects on biotransformation enzymes and the detoxification system of the host.
Insights
Tomato juice consumption may prevent skin cancer by boosting antioxidant enzymes and reducing harmful lipid peroxides. This study in mice suggests tomato
Area of Science:
- Oncology
- Nutritional Science
- Biochemistry
Background:
- Tomato juice is rich in antioxidants and chemopreventive agents.
- Skin carcinogenesis is a complex process influenced by carcinogen exposure and host factors.
Purpose of the Study:
- To investigate the anticarcinogenic effects of tomato juice in a mouse skin carcinogenesis model.
- To explore the underlying mechanisms of tomato juice's protective action.
Main Methods:
- Mice were administered tomato juice orally.
- Skin carcinogenesis was induced using a carcinogen.
- Levels of lipid peroxides and activity of liver detoxification enzymes (glutathione-S-transferase, glutathione peroxidase, superoxide dismutase) were measured.
Main Results:
- Oral tomato juice administration protected against skin tumor development and increased lifespan.
- Tomato juice intake decreased lipid peroxide levels.
- Tomato juice significantly activated key liver detoxification enzymes suppressed by carcinogen exposure.
Conclusions:
- Tomato juice exhibits a preventive role in carcinogenesis.
- The protective effects are likely mediated by modulating host biotransformation and detoxification systems.
- Antioxidant and chemopreventive compounds in tomato juice contribute to its anticarcinogenic properties.
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