Journal Article

Toxicity against Drosophila melanogaster and antiedematogenic and antimicrobial activities of Alternanthera brasiliana (L.) Kuntze (Amaranthaceae)

Franco, Jeferson Luis, da Costa, José Galberto Martins, da Rocha, João Batista Teixeira, Boligon, Aline Augusti, da Silva, Maria Arlene Pessoa, da Cunha, Francisco Assis Bezerra, Coutinho, Henrique Douglas Melo, Rocha, Maria Ivaneide, de Freitas, Thiago Sampaio, de Morais Oliveira-Tintino, Cícera Datiane, Pereira, Raimundo Luiz Silva, de Menezes, Irwin Rose Alencar, dos Santos, Joycy Francely Sampaio, Tintino, Saulo Relison

2018

Overview

Bioactive phytocompounds are studied by several bioactivities demonstrated, as their cytotoxic effects. The aim of this work was to evaluate the phytochemical profile, the toxic effect using the Drosophila melanogaster animal model and the anti-inflammatory and antimicrobial effect of the Alternanthera brasiliana (EEAB) ethanol extract . The phytochemical profile was performed using HPLC. The cytotoxic effect was evaluated in vivo using D. melanogaster . The anti-inflammatory effect was determined by neurogenic and antiedematogenic assays, and the antimicrobial activity was assayed using a microdilution method to determine the minimum inhibitory concentration (MIC) of the EEAB alone and in association with antibiotics. The main compound identified on the EEAB was luteolin (1.93%). Its cytotoxic effect was demonstrated after 24 h in the concentrations of 10, 20 and 40 mg/mL. The extract demonstrated an antiedematogenic effect, with a reduction of the edema between 35.57 and 64.17%. The MIC of the extract was ≥1.024 μg/mL, thus being considered clinically irrelevant. However, when the EEAB was associated with gentamicin, a synergism against all bacterial strains assayed was observed: Staphylococcus aureus (SA10), Escherichia coli (EC06) and Pseudomonas aeruginosa (PA24). Due to these results, the EEAB demonstrated a low toxicity in vivo and anti-inflammatory and synergistic activities. These are promising results, mainly against microbial pathogens, and the compounds identified can be a source of carbon backbones for the discovery and creation of new drugs.

• Publisher: Springer Berlin Heidelberg
• Subject: Alternanthera / Amaranthaceae - chemistry / animal models / Animals / Anti-Bacterial Agents - pharmacology / Anti-Infective Agents - chemistry / Anti-Infective Agents - pharmacology / anti-inflammatory activity / antimicrobial properties / Aquatic Pollution / Atmospheric Protection/Air Quality Control/Air Pollution / carbon / chemical constituents of plants / cytotoxicity / Drosophila melanogaster / Drosophila melanogaster - drug effects / Earth and Environmental Science / Ecotoxicology / edema / Environment / Environmental Chemistry / Environmental Health / Escherichia coli / Escherichia coli - chemistry / Escherichia coli - drug effects / gentamicin / luteolin / Microbial Sensitivity Tests / minimum inhibitory concentration / Parasitology and Entomology / Phytochemicals / Plant-Borne Compounds and Nanoparticles: Challenges for Medicine / Pseudomonas aeruginosa / Pseudomonas aeruginosa - chemistry / Pseudomonas aeruginosa - drug effects / Staphylococcus aureus / Staphylococcus aureus - chemistry / Staphylococcus aureus - drug effects / synergism / Waste Water Technology / Water Management / Water Pollution Control