Department of Embryology and Histology, Inonu University Medical Faculty, 44280 Malatya, Turkey.
Br J Nutr. 2009 Dec;102(12):1767-75. doi: 10.1017/S0007114509991322.
The present study was planned to investigate the protective effect of 10 % and 20 % apricot-containing feed on carbon tetrachloride (CCl4)-induced hepatic steatosis and damage. Adult male Wistar rats (n 42) were divided into six groups of seven each, as follows: control group; CCl4 group; CCl4+10 % apricot group; CCl4+20 % apricot group; 10 % apricot group; 20 % apricot group. All apricot groups were fed with 10 % or 20 % apricot-containing feed for 5 months. CCl4 injections were applied to the CCl4 groups at the dose of 1 mg/kg for 3 d at the end of 5 months. In the CCl4 group, vacuolated hepatocytes and hepatic necrosis were seen, especially in the centrilobular area. Hepatocytes showed an oedematous cytoplasmic matrix, large lipid globules and degenerated organelles. The area of liver injury was found significantly decreased with apricot feeding. Malondialdehyde and total glutathione levels and catalase, superoxide dismutase and glutathione peroxidase activities were significantly changed in the CCl4 group and indicated increased oxidative stress. Apricot feeding decreased this oxidative stress and ameliorated histological damage. We concluded that apricot feeding had beneficial effects on CCl4-induced liver steatosis and damage probably due to its antioxidant nutrient (beta-carotene and vitamin) contents and high radical-scavenging capacity. Dietary intake of apricot can reduce the risk of liver steatosis and damage caused by free radicals.
本研究旨在探讨 10%和 20%杏仁饲料对四氯化碳(CCl4)诱导的肝脂肪变性和损伤的保护作用。成年雄性 Wistar 大鼠(n=42)分为 6 组,每组 7 只,如下:对照组;CCl4 组;CCl4+10%杏仁组;CCl4+20%杏仁组;10%杏仁组;20%杏仁组。所有杏仁组均给予 10%或 20%含杏仁饲料喂养 5 个月。在第 5 个月结束时,CCl4 组以 1mg/kg 的剂量给予 CCl4 注射 3 天。在 CCl4 组中,可见空泡化肝细胞和肝坏死,尤其是在中央小叶区。肝细胞呈现水肿的细胞质基质、大的脂质球和变性的细胞器。发现杏仁喂养显著减少了肝损伤面积。CCl4 组的丙二醛和总谷胱甘肽水平以及过氧化氢酶、超氧化物歧化酶和谷胱甘肽过氧化物酶活性显著改变,表明氧化应激增加。杏仁喂养降低了这种氧化应激并改善了组织学损伤。我们得出结论,杏仁喂养对 CCl4 诱导的肝脂肪变性和损伤具有有益作用,可能是由于其抗氧化营养素(β-胡萝卜素和维生素)含量和高自由基清除能力。杏仁的饮食摄入可以降低自由基引起的肝脂肪变性和损伤的风险。