Baccharis trimera protects against ethanol induced hepatotoxicity in vitro and in vivo.
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Date
2018
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Abstract
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.
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Keywords
Ethanol, Baccharis trimera, Oxidative stress, Hepatotoxicity
Citation
RABELO, A. C. S. et al. Baccharis trimera protects against ethanol induced hepatotoxicity in vitro and in vivo. Journal of Ethnopharmacology, v. 215, p. 1-13, 2018. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0378874117300247?via%3Dihub>. Acesso em: 05 abr. 2018.