The Anti-Inflammatory Potential of Mimosa caesalpiniifolia Following Experimental Colitis: Role of COX-2 and TNF-Alpha Expression

Author(s)

Dias Silva, Marcelo Jose ^[1] ; Vilegas, Wagner ^[1] ; da Silva, Marcelo Aparecido ^[2] ; Ribeiro Paiotti, Ana Paula ^[3] ; Pastrelo, Mauricio Mercaldi ^[3] ; Menin Ruiz, Pedro Luiz ^[4] ; Gomes de Moura, Carolina Foot ^[4] ; Fujiyama Oshima, Celina Tizuko ^[3] ; Ribeiro, Daniel Araki ^[4]

Affiliation

^[1] Sao Paulo State Univ, UNESP, Campus Litoral Paulista, Sao Vicente, SP - Brazil

^[2] Univ Fed Alfenas, UNIFAL, Dept Food & Drug, Alfenas, MG - Brazil

^[3] Univ Fed Sao Paulo, UNIFESP, Dept Pathol, Santos, SP - Brazil

^[4] Univ Fed Sao Paulo, UNIFESP, Dept Biosci, Av Ana Costa 95, BR-11060001 Santos, SP - Brazil

• Document type: Journal article
• Source: DRUG RESEARCH; v. 68, n. 4, p. 196-204, APR 2018.
• Web of Science Citations: 3

Abstract

The aim of this study was to evaluate the preventive and/or protective action of Mimosa caesalpiniifolia (M. caesalpiniifolia) following experimental colitis in rats. The rats were randomized into ten groups (n = 10 per group), as follows: G1 - Sham group:; G2 - TNBS group; G3, G4 - colitis and treated with hydroalcoholic extract of M. caesalpiniifolia 250 mg/kg/day after and before/after inducing colitis, respectively; G5, G6 - colitis and treated with hydroalcoholic extract of M. caesalpiniifolia at 125 mg/kg/day after and before/after inducing colitis respectively; G7, G8 - colitis and treated with ethylacetate fraction of M. caesalpiniifolia at 50 mg/kg/day after and before/ after inducing colitis, respectively; G9, G10 - colitis and treated with ethylacetate fraction of M. caesalpiniifolia at 50 mg/kg/day after and before/after inducing colitis, respectively. Rats treated with hydroalcoholic extract of M. caesalpiniifolia for both doses showed lower tissue damage in the distal colon. Ethylacetate fraction was effective at the highest dose only when administrated after inducing colitis. A downregulation of COX-2 was detected to rats suffering colitis and treated with M. caesalpiniifolia at high dose. On the other hand, TNF-alpha immunoexpression decreased in groups treated with M. caesalpiniifolia at low dose after inducing colitis. In summary, our results suggest that M. caesalpiniifolia attenuated the lesions of the colon, reduced inflammation, and modulates the expression of COX-2 and TNF-alpha during chronic colitis induced by TNBS when using for therapeutic purposes on a dose-dependent manner. (AU)

• FAPESP's process: 15/21479-8 - Standardization of plant extracts of Mimosa spp. development phytomedicines
• Grantee: Marcelo José Dias Silva
• Support Opportunities: Scholarships in Brazil - Post-Doctoral