title: 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.affiliation: Department of Clinical Analysis, Center of Health Sciences, Federal University of Santa Catarina, Campus Universitário-Trindade, 88040-970 Florianópolis, SC, Brazil.
authors.forename: Diana Ana
authors.initials: DA
authors.lastname: Pereira
authors.forename: Juliana Bastos
authors.initials: JB
authors.lastname: Dalmarco
authors.forename: Alberto
authors.initials: A
authors.lastname: Wisniewski
authors.forename: Edésio Luiz
authors.initials: EL
authors.lastname: Simionatto
authors.forename: Moacir Geraldo
authors.initials: MG
authors.lastname: Pizzolatti
authors.forename: Tânia Silvia
authors.initials: TS
authors.lastname: Fröde
mesh_terms: D000818:Animals; D000893:Anti-Inflammatory Agents / Q000008:administration & dosage*; D001920:Bradykinin; D004195:Disease Models, Animal; D006801:Humans; D000070116:Lotus / Q000737:chemistry*; D051379:Mice; D010936:Plant Extracts / Q000008:administration & dosage*; D010998:Pleurisy / Q000139:chemically induced / Q000188:drug therapy* / Q000276:immunology*
chemical_list: D000893:Anti-Inflammatory Agents; D010936:Plant Extracts; D001920:Bradykinin