title: Anti-inflammatory and antioxidant properties of Helichrysum italicum.
abstract: The anti-inflammatory and antioxidant activities of the aerial part of Helichrysum italicum extracts have been established in various in-vivo and in-vitro experimental models. The results obtained on the acute oedemas induced by 12-O-tetradecanoylphorbol 13-acetate (TPA) and ethyl phenylpropiolate in the mouse ear, by serotonin and phospholipase A2 (PLA2) in the mouse paw, on chronic inflammation induced by repeated application of TPA in the mouse ear and on the delayed-type hypersensitivity induced by sheep red blood cells suggest that said anti-inflammatory activity is due to the effects of compounds expressed via a corticoid-like mechanism. In addition, the antioxidant activity of the extracts seems to be implicated in this anti-inflammatory activity, as the former inhibits enzymatic and non-enzymatic lipid peroxidation and has free-radical scavenger properties. We conclude that the anti-inflammatory activity of Helichrysum italicum can be explained by multiple effects, including inflammatory enzyme inhibition, free-radical scavenging activity and corticoid-like effects.
authors.affiliation: Departament de Farmacologia, Facultat de Farmàcia, Universitat de València, Spain.
authors.forename: Araceli
authors.initials: A
authors.lastname: Sala
authors.forename: MaríadelCarmen
authors.initials: M
authors.lastname: Recio
authors.forename: Rosa Marfa
authors.initials: RM
authors.lastname: Giner
authors.forename: Salvador
authors.initials: S
authors.lastname: Máñez
authors.forename: Horacio
authors.initials: H
authors.lastname: Tournier
authors.forename: Guillermo
authors.initials: G
authors.lastname: Schinella
authors.forename: José-Luis
authors.initials: JL
authors.lastname: Ríos
mesh_terms: D000818:Animals; D000893:Anti-Inflammatory Agents / Q000302:isolation & purification / Q000627:therapeutic use*; D000975:Antioxidants / Q000302:isolation & purification / Q000627:therapeutic use*; D004487:Edema / Q000139:chemically induced / Q000188:drug therapy*; D005260:Female; D006968:Hypersensitivity, Delayed / Q000139:chemically induced / Q000517:prevention & control*; D015227:Lipid Peroxidation / Q000187:drug effects*; D051379:Mice; D008862:Microsomes, Liver / Q000187:drug effects / Q000378:metabolism; D010936:Plant Extracts / Q000302:isolation & purification / Q000627:therapeutic use*; D051381:Rats
chemical_list: D000893:Anti-Inflammatory Agents; D000975:Antioxidants; D010936:Plant Extracts