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Eggplant (Solanum melongena) extract does not alter serum lipid levels

Juliana Marchiori Praça et al. Andréa Thomaz Bruno Caramelli

OBJECTIVE: To compare the effect of eggplant extract on serum lipid levels with that of lovastatin. METHODS: The study included 21 individuals of both sexes, with total cholesterol (TC) levels > 200 mg/dL, no diabetes, no contraindication for the use of statins, and no use of cholesterol-lowering drugs, divided into the following 3 groups: 1) the eggplant group (B), in which the patients drank 1 glass of eggplant extract with orange juice before breakfast each morning; 2) the statin group (E), in which the patients received 20 mg of lovastatin in the evening after dinner; 3) control group (C), in which the patients received no treatment. Total cholesterol and fractions (HDL, LDL), and triglycerides were measured 3 times at 3-week intervals. RESULTS: The baseline lipid levels were similar in the 3 groups. After 6 weeks, a significant reduction in TC levels (from 245.29 ± 41.69 to 205.71 ± 46.45; P=0.02) and in LDL-cholesterol levels (from 170.83 ± 41.76 to 121.29 ± 44.90; P=0.008) was observed in group E. In group B, total cholesterol (from 230.60 ± 19.30 to 240.20 ± 16.22; P=0.27) and LDL-cholesterol (from 139.60 ± 21.49 to 154.40 ± 9.66; P=0.06) showed no statistically significant variation, as in group C. No significant variation was observed in the HDL-cholesterol and triglyceride levels in the 3 groups throughout the study. CONCLUSION: The eggplant extract with orange juice is not to be considered an alternative to statins in reducing serum levels of cholesterol.

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Effect of eggplant on plasma lipid levels, lipidic peroxidation and reversion of endothelial dysfunction in experimental hypercholesterolemia

Paulo Afonso Ribeiro Jorge et al. Lidia C. Neyra Regina M. Osaki Eros de Almeida Neura Bragagnolo

PURPOSE: To study the effect of egg plant on endothelium-dependent relaxation, and plasma lipids in hypercholesterolemic rabbits, and to assess influence of this plant on the malondialdehyde (MDA) content of LDL particles and the arterial wall. METHODS: Thirteen male rabbits were randomly assigned to control (C), hypercholesterolemic (H) and egg plant (E) treated groups (n=10 each). The H and E rabbits were fed a diet supplemented with cholesterol (0.5%) and coconut oil (10%) for 4 weeks. In addition, group E received 10mL of the fruit juice/day during the last 2 weeks.The animals were killed and the aorta removed to measure MDA content and the endothelium dependent relaxation responses. Total plasma cholesterol, VLDL, LDL, HDL and triglyceride levels were determined using commercial kits. MDA was quantified in native and oxidized LDL and in the arterial wall. RESULTS: After 4 weeks, the E group rabbits had a significantly lower weight , plasma cholesterol, LDL, triglyceride and aortic cholesterol contentthan group H(p<0.05). The MDA content that was significantly increased in the LDL particles and in the arterial wall of H rabbits was reduced in the E group (p<0.05). Endothelium-dependent relaxation were significantly higher in the E group compared H group rabbits (p<0.05). CONCLUSION: In hypercholesterolemic rabbits egg plant juice significantly reduced weight, plasma cholesterol levels, aortic cholesterol content and the MDA concentrations in native-oxidized LDL and in the arterial wall and increased the endothelium-dependent relaxations.

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Eggplant (Solanum melongena) extract does not alter serum lipid levels

Effect of eggplant on plasma lipid levels, lipidic peroxidation and reversion of endothelial dysfunction in experimental hypercholesterolemia

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Electronic Document Format (APA)

Electronic Document Format (ISO)