Phenolic profile, antibacterial, antimutagenic and antitumour evaluation of Veronica urticifolia Jacq.

This study was designed to characterize the phenolic profile and evaluate the antibacterial, antimutagenic and antitumor activities of Veronica urticifolia Jacq. methanolic extract. HPLC-DAD/ESI-MS analysis revealed the presence of phenolic acids, flavonoids and phenylethanoids, with acteoside as th...

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Bibliographic Details
Main Author: Živković, Jelena (author)
Other Authors: Barreira, João C.M. (author), Stojković, Dejan (author), Cebovic, Tatjana (author), Santos-Buelga, Celestino (author), Maksimović, Zoran (author), Ferreira, Isabel C.F.R. (author)
Format: article
Language:eng
Published: 2014
Subjects:
Online Access:http://hdl.handle.net/10198/10144
Country:Portugal
Oai:oai:bibliotecadigital.ipb.pt:10198/10144
Description
Summary:This study was designed to characterize the phenolic profile and evaluate the antibacterial, antimutagenic and antitumor activities of Veronica urticifolia Jacq. methanolic extract. HPLC-DAD/ESI-MS analysis revealed the presence of phenolic acids, flavonoids and phenylethanoids, with acteoside as the main component (14.9 mg/g of extract). Antibacterial effect was determined using the microbroth dilution assay and Staphylococcus aureus was the most sensitive strain (MIC and MBC = 7.5 mg/mL). Antimutagenic activity was evaluated by Ames mutagenicity assay. At 1 mg/plate, the tested extract afforded high protection against the mutagenicity of nitroquinoline-N-oxide (4NQO) to Salmonella typhimurium strain TA100 (inhibition rate 48.3%). Antitumor activity was screened in Ehrlich ascites carcinoma (EAC) model. Pretreatment with 2 mg/kg body weight showed statistically significant decrease in tumor cell viability, while ascites volume and tumor cell count became slightly decreased, but not to a statistically significant extent. Above results indicate that V. urticifolia deserves further research into chemoprevention.