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- Title
Achyrocline satureioides (Lam.) D.C. Hydroalcoholic Extract Inhibits Neutrophil Functions Related to Innate Host Defense.
- Authors
Barioni, Eric Diego; Santin, Jose Roberto; Machado, Isabel Daufenback; de Paula Rodrigues, Stephen Fernandes; Ferraz-de-Paula, Viviane; Wagner, Theodoro Marcel; Cogliati, Bruno; dos Santos, Matheus Corrêa; da Silva Machado, Marina; de Andrade, Sergio Faloni; Niero, Rivaldo; Poliselli Farsky, Sandra Helena
- Abstract
Achyrocline satureioides (Lam.) D.C. is a herb native to South America, and its inflorescences are popularly employed to treat inflammatory diseases. Here, the effects of the in vivo actions of the hydroalcoholic extract obtained from inflorescences of A. satureioides on neutrophil trafficking into inflamed tissue were investigated. Male Wistar rats were orally treated with A. satureioides extract, and inflammation was induced one hour later by lipopolysaccharide injection into the subcutaneous tissue. The number of leukocytes and the amount of chemotactic mediators were quantified in the inflammatory exudate, and adhesion molecule and toll-like receptor 4 (TLR-4) expressions and phorbol-myristate-acetate- (PMA-) stimulated oxidative burst were quantified in circulating neutrophils. Leukocyte-endothelial interactions were quantified in the mesentery tissue. Enzymes and tissue morphology of the liver and kidney were evaluated. Treatment with A. satureioides extract reduced neutrophil influx and secretion of leukotriene B4 and CINC-1 in the exudates, the number of rolling and adhered leukocytes in the mesentery postcapillary venules, neutrophil L-selectin, β2-integrin and TLR-4 expression, and oxidative burst, but did not cause an alteration in the morphology and activities of liver and kidney. Together, the data show that A. satureioides extract inhibits neutrophil functions related to the innate response and does not cause systemic toxicity.
- Subjects
BRAZIL; PHYTOTHERAPY; LIVER analysis; ALCOHOLS (Chemical class); ANALYSIS of variance; ANIMAL experimentation; BIOPHYSICS; CHEMOKINES; EXUDATES &; transudates; FLOW cytometry; GAS chromatography; HIGH performance liquid chromatography; KIDNEYS; MASS spectrometry; RESEARCH methodology; NEUTROPHILS; RATS; RESEARCH funding; T-test (Statistics); LIPOPOLYSACCHARIDES; LEUKOCYTE count
- Publication
Evidence-based Complementary & Alternative Medicine (eCAM), 2013, Vol 2013, p1
- ISSN
1741-427X
- Publication type
Article
- DOI
10.1155/2013/787916