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Evidence-Based Complementary and Alternative Medicine
Volume 2017 (2017), Article ID 2712108, 10 pages
Research Article

Effects of the Aqueous Extract from Tabebuia roseoalba and Phenolic Acids on Hyperuricemia and Inflammation

1Laboratório de Plantas Medicinais, Escola de Farmácia, Universidade Federal de Ouro Preto, 35400-000 Ouro Preto, MG, Brazil
2Departamento de Química, Instituto Federal de Minas Gerais, Campus Ouro Preto, 35400-000 Ouro Preto, MG, Brazil

Correspondence should be addressed to Dênia Antunes Saúde-Guimarães

Received 11 June 2017; Revised 19 September 2017; Accepted 30 October 2017; Published 11 December 2017

Academic Editor: Hyunsu Bae

Copyright © 2017 Zilma Schimith Ferraz-Filha et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Tabebuia species (Bignoniaceae) have long been used in folk medicine as anti-inflammatory, antirheumatic, antimicrobial, and antitumor. The aim of this study was to investigate if aqueous extract from the leaves (AEL) of Tabebuia roseoalba (Ridl.) Sandwith, Bignoniaceae, and its constituents could be useful to decrease serum uric acid levels and restrain the gout inflammatory process. HPLC analysis identified caffeic acid and chlorogenic acid in AEL. Antihyperuricemic effects and inhibition of liver XOD (xanthine oxidoreductase) by AEL and identified compounds were evaluated in hyperuricemic mice. Anti-inflammatory activity was evaluated on MSU (monosodium urate) crystal-induced paw edema. In addition, AEL antioxidant activity in vitro was evaluated. AEL, caffeic, and chlorogenic acids were able to reduce serum uric acid levels in hyperuricemic mice probably through inhibition of liver xanthine oxidase activity and significantly decreased the paw edema induced by MSU crystals. AEL showed significant antioxidant activity in all evaluated assays. The results show that the AEL of Tabebuia roseoalba can be a promising agent for treatment for gout and inflammatory diseases. We suggest that caffeic and chlorogenic acids may be responsible for the activities demonstrated by the species.