Abstract
In this study, the anti-inflammatory effects of a tropolone derivative, 2,5-dihydroxycyclohepta-2,4,6-trienone (AD-4), were investigated. The anti-inflammatory potency of AD-4 was compared with that of indomethacin in carrageenan-induced inflammation models in rats. The effect on vascular permeability was also determined by hyaluronidase-induced capillary permeability. AD-4 decreased carrageenan-induced paw edema at doses of 3.62 × 102, 7.24 × 102, and 14.48 × 102 μmol/kg by 45% (p < 0.001), 79% (p < 0.001), and 83% (p < 0.001), respectively, compared with the value of 49% (p < 0.001) for indomethacin (69.8 μmol/kg). Additionally, AD-4 decreased hyaluronidase-induced capillary permeability significantly. In conclusion, AD-4 was determined to have anti-inflammatory effects with lower toxicity than indomethacin. Anti-inflammatory effect of AD-4 may be related to its effects on vascular permeability.
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Acknowledgements
We would like to express our thanks to Prof. Dr. Metin BALCI and Prof. Dr. Arif DASTAN who synthesized AD-4 for their contribution to this work.
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Koc, F., Cadirci, E., Albayrak, A. et al. Anti-inflammatory activity of 2,5-dihydroxycyclohepta-2,4,6-trienone in rats. Med Chem Res 19, 84–93 (2010). https://doi.org/10.1007/s00044-009-9174-z
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DOI: https://doi.org/10.1007/s00044-009-9174-z