Effect of Curcumin on BOP Induced Oxidative Stress in a Hamster Model: Correlation with Metabolomic Profile - Livres de poche

Oxidative stress (OS) is associated with many chronic states including cancer. Curcumin, a bioactive chemical of turmeric has potent antioxidant effects. We utilized metabolomics to evaluate signatures of OS in BOP (N-nitrosobis-2-(oxopropyl) amine) induced hamsters and their effect by curcumin. 32 hamsters were randomized into treatment (n=20; OS induced by BOP) and control (n=12) groups. After 12 weeks each group was subdivided by no (T0, C0) or 2% curcumin (T2, C2) diet. Proton nuclear magnetic resonance spectroscopy was conducted on urine and analyzed using Principal Component Analysis PCA;SIMCA P+, Umetrics. The PCA score plots showed clear separation between spectra from treatment (T0) and control (C0) groups, and curcumin fed (T2) groups (p0.05). Partial Least Square (PLS) analysis correlated the metabolomic profiles with Total Antioxidant, cyclooxygenase-2 and NF-kB activity well. Metabolites responsible for the inter-group differences were linked to the pyrimidine, purine and glycine, serine and threonine pathways. With further investigation these metabolites, in addition to providing a mechanistic insight, may serve as potential signatures of OS.