Anti-Inflammatory Effect of Certain Dihydroxy Flavones and the Mechanisms Involved

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Abstract:

This study was designed to evaluate the anti-inflammatory action of four dihydroxy flavone derivatives; 3,3'- dihydroxy flavone, 5,6-dihydroxy flavone, 3,7-dihydroxy flavone and 6,3'-dihydroxy flavone and to further investigate the multiple cellular mechanisms underlying the anti-inflammatory effect of these compounds. The effect of dihydroxy flavones on acute inflammation was studied in rats employing carrageenan induced hind paw edema method. Further, the role of proinflammatory cytokines like TNF-α and IL-1β, cyclooxygenases (COX-1 and COX-2), and free radicals in the action of flavone derivatives was investigated using in vitro assays. All the four dihydroxy flavone derivatives exhibited time and dose dependent inhibition of carrageenan induced paw edema. In addition, the investigated compounds inhibited both the isoforms of cyclooxygenase and cytokines in a concentration dependant manner and also suppressed the release of reactive oxygen species. The anti-inflammatory effect of dihydroxy flavones may be through mechanisms that involve an interaction with cyclooxygenases, cytokines and reactive oxygen species.

Keywords: Anti-inflammation; cyclooxygenases; cytokines; dihydroxy flavones; reactive oxygen species

Document Type: Research Article

DOI: http://dx.doi.org/10.2174/187152312804142759

Publication date: December 1, 2012

More about this publication?
  • Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry aims to cover all the latest and outstanding developments in medicinal chemistry and rational drug design for the discovery of new Anti-Inflammatory & Anti-Allergy Agents.

    Each issue contains a series of timely in-depth reviews written by leaders in the field covering a range of current topics in Anti-Inflammatory & Anti-Allergy Medicinal Chemistry.

    Anti-Inflammatory & Anti-Allergy Agents in Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments in Anti-Inflammatory & Anti-Allergy Agents drug discovery.
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