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小麦麸皮对高脂喂养大鼠体质量和血脂水平的影响

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目的:探究小麦麸皮对高脂喂养大鼠体质量和血脂水平的影响。方法:24只SPF级雄性SD大鼠,随机分为4组,每组6只,正常对照组喂普通饲料,其余均喂高脂饲料,其中高脂饮食组喂含有5%小麦膳食纤维的高脂饲料、小麦麸皮低、高剂量组分别喂含有10%、15%小麦膳食纤维的高脂饲料。每周测量并记录大鼠体重和摄食量。连续饲喂养13w后处死,取脏器组织、脂肪组织称重;测定总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)。比较各组大鼠体重、体长、Lee's指数、脂肪指数、血清指标和肝脏组织病理形态。结果:与正常对照组比较,高脂饮食组大鼠体重、体长和Lee's指数升高,肝脏、肾脏、睾周脂肪、肾周脂肪重量、睾周脂肪指数、肾周脂肪指数均增加,TC、LDL-C水平升高,HDL-C水平降低(P<0。05);与高脂饮食组比较,小麦麸皮低、高剂量组大鼠Lee's指数、肝脏、肾脏、睾周脂肪重量、睾周脂肪指数、肾周脂肪指数均降低,小麦麸皮低剂量组大鼠血清TC水平降低、HDL-C水平升高,高剂量组大鼠血清TG水平降低、HDL-C水平升高(P<0。05),小麦麸皮低、高剂量组大鼠的肝脏脂肪变性程度得到明显改善。结论:小麦麸皮能改善高脂饮食造成的体质量、血脂水平升高及引起的肝脏脂肪变性,对于预防血脂异常及肥胖的发生有重要的作用。
Effect of Wheat Bran on Body Weight and Blood Lipid Levels in High-Fat Fed Rats
[Objective]To investigate the effect of wheat bran on body weight and blood lipid level in high-fat fed rats.[Method]A total of 24 SPF male SD rats were randomly divided into 4 groups,6 rats in each group,the normal control group was fed with normal diet,and the rest were fed with high-fat diet,among which the high-fat diet group was fed with high-fat feed containing 5%wheat dietary fiber,and the low-fat and high-dose wheat bran groups were fed with high-fat diet containing 10%and 15%wheat dietary fiber,respectively.Rats body weight and food intake are measured and recorded weekly.After 13 weeks of continuous feeding,they were sacrificed,and organ tis-sues and adipose tissues were weighed.Total cholesterol(TC),triglycerides(TG),low-density lipoprotein cholesterol(LDL-C),high-density lipoprotein cholesterol(HDL-C)are measured.Body weight,body length,Lee's index,fat index,serum indexes and liver histopathological morphology were compared in each group.[Result]Compared with the normal control group,the weight,body length and Lee's index of the high-fat diet group increased,and the liver,kidney,peritesticular fat,perirenal fat weight,peritesticular fat index,perirenal fat index,TC and LDL-C levels increased,and HDL-C levels decreased(P<0.05).Compared with the high-fat diet group,the Lee's index,liver,kidney,peritesticular fat weight,peritesticular fat index and perirenal fat index were decreased in the low-dose and high-dose wheat bran groups,the serum TC level and HDL-C level were decreased in the low-dose wheat bran group,the serum TG level and HDL-C level were increased in the high-dose group(P<0.05),and the degree of liver steatosis in the low-dose and high-dose wheat bran groups was significantly improved.[Conclusion]Wheat bran can improve the increase of body weight,blood lipid level and liver steatosis caused by high-fat diet,and play an important role in preventing the occurrence of dyslipidemia and obesity.

wheat branhigh-fat feedingbody weightblood lipids

赵玉洁、迪娜·木合亚提、麦尔合巴·库尔班江、修雪燕、韩加

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新疆医科大学公共卫生学院营养与食品卫生学教研室,乌鲁木齐 830011

小麦麸皮 高脂喂养 体质量 血脂

国家自然科学基金

8216061

2024

中国食物与营养
中国农业科学院 国家食物与营养咨询委员会

中国食物与营养

CSTPCD
影响因子:0.754
ISSN:1006-9577
年,卷(期):2024.30(10)