alexa Geraniol attenuates 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced oxidative stress and inflammation in mouse skin: possible role of p38 MAP Kinase and NF-κB.
Nutrition

Nutrition

Journal of Nutritional Disorders & Therapy

Author(s): Khan AQ, Khan R, Qamar W, Lateef A, Rehman MU, , Khan AQ, Khan R, Qamar W, Lateef A, Rehman MU, , Khan AQ, Khan R, Qamar W, Lateef A, Rehman MU, , Khan AQ, Khan R, Qamar W, Lateef A, Rehman MU,

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Abstract Abnormal production of reactive oxygen species (ROS) and proinflammatory cytokines often act as trigger for development of most of the chronic human diseases including cancer via up-regulation of transcription factors and activation of MAP kinases. We investigated the protective effects of geraniol (GOH) against 12-O-tetradecanoyl phorbol-13-acetate (TPA) induced oxidative and inflammatory responses, expression of p38MAPK, NF-κB and COX-2 in mouse skin. Animals were divided into four groups I-IV (n=6). Group II and III received topical application of TPA at the dose of 10 nmol/0.2 ml of acetone/animal/day, for two days. Group III was pre-treated with GOH (250 μg) topically 30 min prior to each TPA administration. While group I and IV were given acetone (0.2 ml) and GOH respectively. Our results show that GOH significantly inhibited TPA induced lipid peroxidation (LPO), inflammatory responses, proinflammatory cytokine release, up regulates reduced glutathione (GSH) content and the activity of different antioxidant enzymes. Interestingly, GOH also inhibited TPA induced altered activity of p38MAPK. Further, TPA induced altered expression of NF-κB (p65) and COX-2 was also attenuated by GOH. Thus, our results suggest that GOH attenuates early tumor promotional changes, and it may serve as one of the various ways to prevent carcinogenesis. Copyright © 2013 Elsevier Inc. All rights reserved. This article was published in Exp Mol Pathol and referenced in Journal of Nutritional Disorders & Therapy

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