RESUMEN
The present study investigated the effects of murici and tapereba on improving hepatic and inflammatory biomarkers in high-fat-diet rats. Female Wistar rats were divided into five groups (n = 10/group): control (CON), high-fat diet (HF), murici drink + high-fat diet (Mu-HF), tapereba drink + high-fat diet (Tap-HF), and murici and tapereba blend drink + high-fat diet (MT-HF). Drinks were offered daily for 60 days, following which body and liver weights, hepatosomatic indexes, serum parameters, inflammatory profile, and antioxidant activity (DPPH and ORAC) were analyzed. The cell death of hepatic cells was evaluated using flow cytometry. It was observed that weight gain was similar among the groups, while glycemia was lower in the MT-HF group. A high-fat diet increased the concentration of cholesterol total, ALT, IL-1ß (in plasma and liver), and TNF-α (in the liver), and this was reduced by treatment with the fruit-based beverages. The other evaluated parameters showed no statistically significant difference. Compared to the CON and HF groups, the groups that received the drinks had higher cellular antioxidant activity and reduced oxidative stress, lipid oxidation, and development of pro-inflammatory cytokines, such as IL-1ß. A high-fat diet induced higher cell death in hepatic tissue, which was prevented by the murici, tapereba, and the fruit-blend drinks. The consumption of murici, tapereba, and fruit-blend-based beverages showed beneficial effects on liver metabolism; therefore, they may serve as a nutritional approach for preventing and treating non-alcoholic liver disease.
RESUMEN
OBJECTIVE: This study evaluated the effect of grape juice consumption on the antioxidant capacity and the interleukin-6 blood level of lactating rats. MATERIAL AND METHOD: Eighteen Wistar rats, lactating females adult, were divided into two groups: control group (CG) and grape juice group (GJG). The antioxidant activity was determined by the method of 2,2-diphenyl-1-picrylhydrazyl (DPPH)-kidnapping of free radicals (DPPH) and oxygen radical absorbance capacity (ORAC), and the interleukin-6 was determined by Enzyme-Linked Immunosorbent Assay (ELISA) method. The data were presented as mean and standard deviation. RESULTS: The antioxidant capacity was higher (p < 0.05) in the GJG (25.00 ± 3.08 µmol eq. Trolox/g) than in the CG (10.00 ± 3.11 µmol eq. Trolox/g), by the ORAC method. The interleukin-6 (pg/ml) level was lower in the grape juice group than in CG. CONCLUSION: The consumption of grape juice during lactation improves the antioxidant capacity in lactating rats and seems capable to decrease the inflammatory activity.