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Disorders of Glucose and Lipid Metabolism and Pathological Changes of Pancreas, Liver and Kidney in New Zealand White Rabbits Induced by High Sucrose,High Fat and High Cholesterol Diet
Author(s): 
Pages: 151-156
Year: Issue:  3
Journal: LABORATORY ANIMAL AND COMPARATIVE MEDICINE

Keyword:  新西兰兔血液生化组织病理学;
Abstract: 目的探讨高糖高脂高胆固醇饲料对新西兰兔血糖、甘油三酯、总胆固醇水平和胰、肝、肾组织结构的影响.方法将雄性新西兰兔20只随机分为2组,10只饲以基础饲料作为正常对照组(C组);10只饲以高糖高脂高胆固醇饲料作为实验组(HD组),共观察16周,每4周从禁食过夜的兔耳缘静脉抽取血样,测定血清中葡萄糖、甘油三酯和总胆固醇水平.16周时全部处死动物,取胰腺、肝脏和肾脏,用10%中性甲醛液固定,常规石蜡包埋切片,作HE染色、VG染色,并用免疫组织化学方法检测胰岛β细胞.结果与对照组相比,实验组出现空腹血清总胆固醇、甘油三酯、葡萄糖相继升高(P<0.05).以不同喂养时间作方差分析,整体上差异具有统计学意义.喂养16周后,实验组胰、肝、肾病理检查及胰腺免疫组化结果显示:胰岛数量减少,萎缩,胰岛内细胞数目亦减少,胞核浓染、缩小,胞浆内空泡变性明显,红染加深;肝脏脂肪样变性,纤维化;肾小球肥大,硬化,而正常对照组组织结构基本正常.结论高糖高脂高胆固醇饲料对新西兰兔具有脂肪毒性和葡萄糖毒性,可致血糖、甘油三酯、总胆固醇水平升高,并可引起胰岛β细胞和肝脏、肾脏组织结构损伤.
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