Lotus corniculatus regulates the inflammation induced by bradykinin in a murine model of pleurisy.

Abstract

This study evaluated the anti-inflammatory efficacy of the crude extract (CE), the fractions derived from hexane (HEX), ethyl acetate (AcOEt), n-butanol (BuOH), and aqueous (Aq) and isolated compounds (oleanolic acid or kaempferitrin) obtained from the aerial parts of Lotus corniculatus var. São Gabriel in mice with bradykinin-induced pleurisy. Swiss mice were used for the In Vivo experiments. Inflammatory parameters [leukocytes; exudate concentrations; myeloperoxidase and adenosine-deaminase activities, and nitric oxide and interleukin-17 levels] were evaluated 4 h after pleurisy induction. The crude extract of Lotus corniculatus, its derived fractions, and isolated compounds inhibited leukocytes and the exudate. This inhibitory effect was associated with decreased of myeloperoxidase and adenosine-deaminase activities, nitric oxide products, and IL-17A levels. Lotus corniculatus presented important anti-inflammatory action by inhibiting leukocyte influx and exudate concentrations. This effect was directly related to the inhibition of nitric oxide and interleukinin17 levels. Oleanolic acid and kaempferitrin can account for these anti-inflammatory effects.

• Authors: Diana Ana Pereira, Juliana Bastos Dalmarco, Alberto Wisniewski Jr, Edésio Luiz Simionatto, Moacir Geraldo Pizzolatti, Tânia Silvia Fröde
• Journal: Journal of agricultural and food chemistry (J Agric Food Chem) Vol. 59 Issue 6 Pg. 2291-8 (Mar 23 2011) ISSN: 1520-5118 [Electronic] United States
• PMID: 21355560 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Anti-Inflammatory Agents
• Plant Extracts
• Bradykinin

Topics

• Animals
• Anti-Inflammatory Agents (administration & dosage)
• Bradykinin
• Disease Models, Animal
• Humans
• Lotus (chemistry)
• Mice
• Plant Extracts (administration & dosage)
• Pleurisy (chemically induced, drug therapy, immunology)