Resveratrol is a phytoalexin, a class of compounds produced by plants as a defense against invading microorganisms. In plants, phytoalexins play a protective role during periods of stress or infection. In a similar way, other plant-derived compounds—such as bioflavonoids, which protect plants from the oxidative stress of photosynthesis—can exert protective effects in humans when consumed as part of the diet.
Resveratrol is found in several plant sources, most notably in dark-colored grapes and red wine, where it contributes to the antioxidant activity of these foods.
Animal research has explored the potential anti-inflammatory effects of resveratrol. A study published in the European Journal of Pharmacology (February 1, 2010; e-published ahead of print) examined the impact of resveratrol supplementation in a mouse model of ulcerative colitis. In this study, acute colitis was induced in six-week-old mice and allowed to progress into chronic inflammation. The animals were divided into two groups: one group received a standard diet, while the other was fed a diet fortified with 20 mg/kg of resveratrol.
Mice receiving resveratrol supplementation experienced reduced disease severity along with a decrease in inflammatory mediators, including cytokines such as tumor necrosis factor–alpha (TNF-α) and interleukin-1 beta (IL-1β), as well as reduced expression of prostaglandin E synthase-1, cyclooxygenase-2 (COX-2), and inducible nitric oxide synthase (iNOS). These improvements were not observed in the non-supplemented group.
The findings suggest that resveratrol may influence inflammatory signaling pathways involved in chronic intestinal inflammation, at least in animal models.
Educational note:
This article is for informational purposes only and is not intended as medical advice.
