Department of Nutrition and Health, Federal University of Viçosa, PH Rolfs Avenue, s/n, Viçosa, Minas Gerais 36570-900, Brazil.
Department of Veterinary, Federal University of Viçosa, PH Rolfs Avenue, s/n, Viçosa, Minas Gerais 36570-900, Brazil.
Food Res Int. 2018 Dec;114:169-177. doi: 10.1016/j.foodres.2018.08.004. Epub 2018 Aug 3.
The aim was to evaluate the effect of the ethanol extract of bacupari peel (EEB) on biometric measurements, hepatic lipogenesis and progression of non-alcoholic fatty liver disease (NAFLD) in obese Wistar rats. Chemical analysis of the bacupari peel extract identified 7-epiclusianone as the major constituent (140.02 mg/g) followed by morelloflavone (35.86 mg/g). Animals treated with high fat diet plus EEB (BHFD) reduced body mass index (BMI), liver weight and hepatosomatic index in relation to the obese control. The food intake was similar between hyperlipid group (HFD) groups with or without EEB. However, the normal control group (AIN-93 M) presented higher food intake and lower final weight compared to the obese control (HFD). The PPAR-α, CPT-1a and the ADIPOR2 genes expressions, and the concentration of the PPAR-α and the adiponectin protein level increased in the BHFD group in relation to the obese control. The EEB promoted reduction of the SREBP-1c gene expression and the percentage of hepatic fat and the degree of steatosis in relation to HFD. It was concluded that EEB showed a protective effect on NAFLD, as it promoted a reduction in BMI, induced lipid oxidation, reduced lipogenesis and hepatic steatosis. Moreover, our results suggest an interaction that can lead to an agonist activity of the EEB to the PPAR-α receptor.
目的在于评估巴西栗果皮乙醇提取物(EEB)对肥胖 Wistar 大鼠生物计量学、肝脂肪生成和非酒精性脂肪性肝病(NAFLD)进展的影响。对巴西栗果皮提取物的化学分析鉴定出 7-表毛蕊花糖苷为主要成分(140.02mg/g),其次是 morelloflavone(35.86mg/g)。用高脂肪饮食加 EEB(BHFD)治疗的动物与肥胖对照组相比,体重指数(BMI)、肝重和肝体比降低。高脂饮食组(HFD)之间的食物摄入量相似,无论是否添加 EEB。然而,正常对照组(AIN-93M)的食物摄入量较高,最终体重低于肥胖对照组(HFD)。与肥胖对照组相比,BHFD 组的 PPAR-α、CPT-1a 和 ADIPOR2 基因表达以及 PPAR-α 和脂联素蛋白水平增加。EEB 可降低 SREBP-1c 基因表达以及肝脂肪百分比和脂肪变性程度,与 HFD 相比。因此,EEB 对 NAFLD 具有保护作用,因为它可降低 BMI,诱导脂质氧化,减少脂肪生成和肝脂肪变性。此外,我们的结果表明存在相互作用,可导致 EEB 对 PPAR-α 受体具有激动剂活性。