Abstract
The aim of this study was to assess the chemopreventive efficacy of ferulic acid in 7,12-dimethylbenz[a]anthracene (DMBA)-induced hamster buccal pouch carcinogenesis. We induced oral squamous cell carcinoma in the buccal pouch of male Syrian golden hamsters by painting with 0.5% DMBA in liquid paraffin three times a week for 14 weeks. The tumor incidence, tumor volume, and tumor burden that were formed in the hamster buccal pouch were determined. The activities of carcinogen detoxification agents and status of lipid peroxidation and antioxidants were also estimated by specific colorimetric methods. We observed 100% tumor formation in DMBA-painted animals. The status of carcinogen-detoxifying agents, lipid peroxidation, and antioxidants was significantly disrupted in DMBA-painted animals. Oral administration of ferulic acid at a dose of 40 mg/kg of body weight to DMBA-painted animals on days alternate to DMBA painting for 14 weeks significantly prevented the tumor incidence, tumor volume, and tumor burden. Ferulic acid exhibited potent anti-lipid peroxidative effects as well as the ability to modulate the status of carcinogen-detoxifying agents and antioxidants in DMBA-painted animals. Our results demonstrate that ferulic acid has potent chemopreventive and antioxidant functions in DMBA-induced hamster buccal pouch carcinogenesis.
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