Combination of trans-resveratrol and E-viniferin induces a hepatoprotective effect in rats with severe acute liver failure via reduction of oxidative stress and MMP-9 expression
2021
Fernandes, João C. | Schemitt, Elizangela | Silva, Juliana | Marroni, Norma P. | Lima, Ana | Ferreira, Ricardo Boavida
Stilbenes are a major grapevine class of phenolic compounds, known for their biological activities, including anti-inflammatory and antioxidant, but never studied in combination. We aimed to evaluate the effect of trans-resveratrol + "-viniferin as an antioxidant mixture and its role in inflammatory development an in vivo model of severe acute liver failure induced with TAA. Trans-resveratrol + trans-"-viniferin (5 mg/kg each) was administered to Wistar rats. Resveratrol + "- viniferin significantly decreased TBARS and SOD activity and restored CAT and GST activities in the treated group. This stilbene combination reduced the expression of TNF , iNOS, and COX-2, and inhibited MMP-9. The combination of resveratrol + "-viniferin had a hepatoprotective effect, reducing DNA damage, exhibiting a protective role on the antioxidant pathway by altering SOD, CAT, and GST activities; by downregulating TNF , COX-2, and iNOS; and upregulating IL-10. Our results suggested that adding viniferin to resveratrol may be more effective in hepatoprotection than resveratrol alone, opening a new perspective on using this stilbene combination in functional diets
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