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Article Publish Status: FREE
Abstract Title:

Hydroalcoholic Extract and Ethyl Acetate Fraction ofLeaves Decrease the Inflammatory Response toSubsp..

Abstract Source:

Evid Based Complement Alternat Med. 2018 ;2018:6091934. Epub 2018 Oct 2. PMID: 30369954

Abstract Author(s):

José Lima Viana, Adrielle Zagmignan, Luís Felipe Lima Lobato, Afonso Gomes Abreu, Luís Cláudio Nascimento da Silva, Joicy Cortez de Sá, Cristina de Andrade Monteiro, João Henrique Ghilardi Lago, Letícia Machado Gonçalves, Rafael Cardoso Carvalho, Lídio Gonçalves Lima Neto, Eduardo Martins de Sousa

Article Affiliation:

José Lima Viana

Abstract:

The incidence of infections caused by rapidly growing mycobacteria (RGM), especiallysubsp.(), is increasing worldwide. Severe infections are associated with abscess formation and strong inflammatory response. This study evaluated the antimicrobial and anti-inflammatory activities of a hydroalcoholic extract (BoHE) and ethyl acetate fraction (BoEA) ofleaves. Antimicrobial activity was evaluated by broth microdilution to determine the minimum inhibitory (MIC) and the minimum bactericidal (MBC) concentrations. Cytotoxicity was evaluated using erythrocytes and RAW 264.7 cells. Nitric oxide (NO) was assayed in stimulated RAW 264.7 cells, and inflammatory cell migration and acute toxicity were evaluated in a-induced peritonitis mouse model. The compounds present in BoEA were identified by high performance liquid chromatography and mass spectrometry (HPLC-MS). The MIC and MBC values were 2.34 mg/mL and 37.5 mg/mL for BoHE and 0.39 mg/mL and 6.25 mg/mL for BoEA. The extracts did not induce significant toxicity in erythrocytes and RAW 264.7 cells. High levels of NO induced bywere decreased by treatment with both extracts. The anti-inflammatory activity was confirmedby significant reduction of the cell migration to the peritoneum following BoHE and BoEA pretreatment. Animals treated with BoHE or BoEA did not show signs of acute toxicity in stomach, liver, and kidney. The chemical characterization of BoEA (the most active extract) revealed that kaempferol-3-O-coumaroyl glucose is its major component. The extract ofmay be effective for treating infections caused by

Study Type : In Vitro Study

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