Electroacupuncture ameliorates experimental colitis induced by TNBS through activation of interleukin-10 and inhibition of iNOS in mice
Goes, Annya Costa Araujo de Macedo; Pinto, Francisco Maxwell Martins; Fernandes, Guilherme Cardoso; Barbosa, Jessica Sales; Correia, Emanuela Santos; Ribeiro, Ronaldo Albuquerque; Guimaraes, Sergio Botelho; Lima Júnior, Roberto Cesar Pereira; Brito, Gerly Anne de Castro; Rodrigues, Lusmar Veras.
Acta cir. bras.;
29(12): 1-7, Dec. 2014. graf, tab, ilus
Artigo
em Inglês
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| ID: vti-18918
Resumo
PURPOSE:To study the anti-inflammatory actions of electroacupuncture (EAc) on an experimental colitis model in mice.METHODS:Thirty-eight male Swiss mice, divided in five groups, were subjected to induction of colitis by TNBS in 50% ethanol. Saline (SAL) and ethanol (ETNL) groups served as controls. TNBS+EAc and TNBS+ dexamethasone subgroups were treated with EAc 100Hz and dexamethasone (DEXA) 1 mg/Kg/day, respectively. After three days, a colon segment was obtained for quantification of myeloperoxidase (MPO) activity, immunohistochemistry for iNOS, malondialdehyde (MDA) and cytokines (IL-1β and IL-10).RESULTS:Neutrophilic activity, assayed as MPO activity, was significantly higher in the TNBS colitis group than that in the saline control group. TNBS+EAc group showed suppression of IL-10 in the colon. EAc treatment significantly reduced the concentration of MDA and the expression of iNOS, as compared to the other groups. CONCLUSION: Electroacupuncture 100Hz applied to acupoint ST-36 promotes an anti-inflammatory action on the TNBS-induced colitis, mediated by increase of IL-10 and decrease of iNOS expression.(AU)
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BR68.1
Localização: BR68.1
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