Grape (Vitis vinifera L.) skin extract reduced levels of SGPT and SGOT and improved the liver tissue structure of Wistar rats (Rattus novergicus) fed a high-cholesterol diet

Abstract

Background: This study determined the effect of adding grape skin extract (Vitis vinifera L.) to the diet of Wistar rats fed with high cholesterol on levels of SGPT and SGOT and the structure of liver tissue. Methods: This study used 5 groups, namely control (standard diet), P1 (high cholesterol diet), P2 (high cholesterol diet and extract of grape skin as much as 100 mg/200 gBW/day), P3 (high cholesterol diet and extract of grape skin as much as 250 mg/200 gBW/day) and P4 (high cholesterol diet and extract of grape skin 500 mg/200 gBW/day). The study began with the production of extracts, the extracts dosage determination, high cholesterol diet preparation, sample (animals) preparation, extract addition to animals, SGPT and SGOT levels measurement, rat liver histopathology preparation and histopathological features observation, then ended with data analysis. Results: The results showed that administration of grape skin extract in Wistar rats fed a high-cholesterol diet affected the levels of SGPT and SGOT, as well as parenchymatous degeneration of hepatocytes. Administration of grape skin extract as much as 500 mg/200 g BW/day had the lowest mean levels of SGPT and SGOT and the lowest parenchymatous degeneration of hepatocytes. Conclusion: Thus, the extract of grape skin (Vitis vinifera L.) has the potential of hepatoprotector because it contains anthocyanin, which functions as an antioxidant and protects against liver damage.