Baccharis trimera protects against ethanol induced hepatotoxicity in vitro and in vivo.

Autor: Rabelo ACS; Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil., de Pádua Lúcio K; Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil., Araújo CM; Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil., de Araújo GR; Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil., de Amorim Miranda PH; Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil., Carneiro ACA; Laboratory of Biology and Biotechnology of Microorganisms, Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil., de Castro Ribeiro ÉM; Laboratory of Biology and Biotechnology of Microorganisms, Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil., de Melo Silva B; Laboratory of Biology and Biotechnology of Microorganisms, Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil., de Lima WG; Laboratory of Morphopathology (LMP), Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil., Costa DC; Laboratory of Metabolic Biochemistry (LBM), Department of Biological Sciences (DECBI), Center of Research in Biological Sciences (NUPEB), Federal University of Ouro Preto (UFOP), Ouro Preto, MG 35400-000, Brazil. Electronic address: dani.caldeiracosta@gmail.com.
Jazyk: angličtina
Zdroj: Journal of ethnopharmacology [J Ethnopharmacol] 2018 Apr 06; Vol. 215, pp. 1-13. Date of Electronic Publication: 2017 Dec 28.
DOI: 10.1016/j.jep.2017.12.043
Abstrakt: Ethnopharmacological Relevance: Baccharis trimera has been traditionally used in Brazil to treat liver diseases.
Aim of the Study: To evaluate the protective effect of Baccharis trimera in an ethanol induced hepatotoxicity model.
Materials and Methods: The antioxidant capacity was evaluated in vitro by the ability to scavenged the DPPH radical, by the quantification of ROS, NO and the transcription factor Nrf2. Hepatotoxicity was induced in animals by administration of absolute ethanol for 2 days (acute) or with ethanol diluted for 28 days (chronic). The biochemical parameters of hepatic function (ALT and AST), renal function (urea and creatinine) and lipid profile (total cholesterol, triglycerides and HDL) were evaluated. In addition to antioxidant defense (SOD, catalase, glutathione), oxidative damage markers (TBARS and carbonylated protein), MMP-2 activity and liver histology.
Results: Baccharis trimera promoted a decrease in ROS and NO, and at low concentrations promoted increased transcription of Nrf2. In the acute experiment it promoted increase of HDL, in the activity of SOD and GPx, besides diminishing TBARS and microesteatosis. Already in the chronic experiment B. trimera improved the hepatic and renal profile, decreased triglycerides and MMP-2 activity, in addition to diminishing microesteatosis.
Conclusion: We believe that B. trimera action is possibly more associated with direct neutralizing effects or inhibition of reactive species production pathways rather than the modulation of the antioxidant enzymes activity. Thus it is possible to infer that the biological effects triggered by adaptive responses are complex and multifactorial depending on the dose, the time and the compounds used.
(Copyright © 2017 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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