title: Antioxidant and anti-inflammatory effects of products from Croton celtidifolius Bailon on carrageenan-induced pleurisy in rats.
abstract: Croton celtidifolius Bailon, commonly known as Sangue-de-Adáve or Pau-Andrade, is a tree found in the Atlantic forest of southern Brazil. It has been popularly used for the treatment of inflammatory and ulcerative disorders. Phytochemical analysis demonstrated the presence of flavonoids and proanthocyanidins in an ethyl acetate fraction (EAF) from C. celtidifolius Bailon. In this study, we have evaluated the effects of EAF and its sub-fractions (35 and 63, catechin) on inflammatory (cell migration and plasma extravasation) and oxidative (lipid peroxidation, superoxide dismutase (SOD) activity and superoxide anion production) parameters in carrageenan-induced pleurisy in rats. NO production was also measured by nitrite/nitrate levels. EAF and sub-fraction 63 (63SF) showed anti-inflammatory activity, as indicated by a reduction in plasma extravasation and cell migration (mainly polymorphonuclear leukocytes) to the pleural cavity. Furthermore, EAF treatment decreased the production of superoxide radical anion by cells isolated from the pleural cavity, while it did not affect the nitrite/nitrate levels in exudates. The results show that C. celtidifolius contains substances with antioxidant and anti-inflammatory activity that, at least in part, act by a modulation of oxidative stress by phenolic compounds.
authors.affiliation: Area de Ciências Biológicas e da Saúde, ACBS, Universidade do Oeste de Santa Catarina-UNOESC, Joaçaba, SC, Brazil. geisson.nardi@unoesc.edu.br
authors.forename: G M
authors.initials: GM
authors.lastname: Nardi
authors.forename: J M
authors.initials: JM
authors.lastname: Siqueira Junior
authors.forename: F
authors.initials: F
authors.lastname: Delle Monache
authors.forename: M G
authors.initials: MG
authors.lastname: Pizzolatti
authors.forename: K
authors.initials: K
authors.lastname: Ckless
authors.forename: R M
authors.initials: RM
authors.lastname: Ribeiro-do-Valle
mesh_terms: D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D000975:Antioxidants / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D002351:Carrageenan; D029802:Croton; D004305:Dose-Response Relationship, Drug; D007962:Leukocytes / Q000187:drug effects / Q000378:metabolism; D008297:Male; D008315:Malondialdehyde / Q000378:metabolism; D008517:Phytotherapy; D024301:Plant Bark; D010936:Plant Extracts / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D010998:Pleurisy / Q000139:chemically induced / Q000517:prevention & control*; D051381:Rats; D017207:Rats, Sprague-Dawley; D013482:Superoxide Dismutase / Q000378:metabolism
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D000975:Antioxidants; D010936:Plant Extracts; D008315:Malondialdehyde; D002351:Carrageenan; D013482:Superoxide Dismutase