Abstract
To evaluate the anti-inflammatory effects of different dietary oils on ovalbumin-sensitized and -challenged mice. Experimental BALB/c mice were fed with different diets containing 5% corn oil [rich in linoleic acid, 18:2n-6 polyunsaturated fatty acids (PUFA), as a control diet], 5% perilla oil (rich in α-linolenic acid, 18:3n-3 PUFA) or 5% compound oil containing 50% corn oil and 50% perilla oil, for 5 consecutive weeks. The leukocyte count, inflammatory mediators, and cytokine levels, including proinflammatory and Th1/Th2 cytokines in the bronchoalveolar lavage fluid (BALF) from the mice were determined. The results showed that 5% compound oil administration significantly (P < 0.05) decreased eosinophilic infiltration. Dietary perilla oil could not significantly (P > 0.05) decrease the eosinophil accumulation or the secretions of inflammatory mediators such as prostaglandin E2 (PGE2), histamine, nitric oxide and eotaxin. However, dietary perilla oil significantly (P < 0.05) reduced proinflammatory cytokine (TNF-α, IL-1β and IL-6) and Th1 cytokine (IFN-γ and IL-2) production. The production of Th2 cytokine IL-10, but not IL-4 and IL-5, was also significantly inhibited by perilla oil administration. The results suggest that dietary perilla oil might alleviate inflammation via decreasing the secretion of pro-inflammatory cytokines in BALF, but failed to regulate the Th1/Th2 balance toward Th1 pole during the Th2-skewed allergic airway inflammation.
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Chang, HH., Chen, CS. & Lin, JY. Dietary Perilla Oil Inhibits Proinflammatory Cytokine Production in the Bronchoalveolar Lavage Fluid of Ovalbumin-Challenged Mice. Lipids 43, 499–506 (2008). https://doi.org/10.1007/s11745-008-3171-8
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DOI: https://doi.org/10.1007/s11745-008-3171-8