实验动物科学 ›› 2014, Vol. 31 ›› Issue (01): 18-21.

• 研究 论著 • 上一篇    下一篇

急性高甘油三酯血症大鼠模型研究*

  

  1. (广西医科大学第一附属医院消化内科,南宁530021)
  • 出版日期:2014-02-28 发布日期:2014-05-14
  • 基金资助:

    :国家自然科学基金项目(No. 81260087)

Study on the Acute High Blood Triglycerides Model in Rat

  • Online:2014-02-28 Published:2014-05-14

摘要: 摘要:目的通过与常用的外源性高脂饲料诱导高脂血症大鼠模型对比,探讨采用果糖灌胃法建立急性高甘油三 酯血症大鼠模型的血脂水平及其动态变化趋势。方法选用SD 雄性大鼠48 只,随机分组,设对照组C1、C2、C3 (分别为M1、M2、M3 的对照组)均给予基础饲料喂养、模型组分别予高脂饲料( M1 )、高脂乳糜剂( M2 )、果糖 (M3A、M3B、M4),于M1 饲养4 周,M2 灌胃2 周,M3 果糖(M3A 予8 mL /次,共5 次;M3B 予5 mL /次,共7 次)。在 末次灌胃0. 5 h 内,M4 灌胃前、末次灌胃后8 h、16 h、24 h、36 h 行眼球眦静脉取血,测大鼠总胆固醇( TC)、甘油三 酯( TG)、高密度脂蛋白胆固醇( HDL—C)、低密度脂蛋白胆固醇( LDL—C) 含量。结果与对照组相比,高脂饲 料及乳剂造模的M1、M2 组TC 显著升高(P < 0. 05),TG 差异无统计学意义;果糖灌胃造模的M3A、M3B 组TG 显著 升高(P < 0. 05),TC、HDL-C 差别无统计学意义;M3A 及M3B 组间血脂水平无差异;M4 组造模后TC、HLD-C 随时 间延长而逐渐下降;TG 于灌胃后8 h 达高峰,36 h 恢复基础值。结论果糖灌胃模型可使TG 急性稳定升高,不同 果糖剂量和灌胃次数不影响造模效果,TG 可持续升高36 h。

关键词: 急性高甘油三酯血症, 胆固醇, 大鼠模型

Abstract: Abstract:Objective Comparing with the common hyperlipidemia rat model,which was induced by exogenous high-fat feed,explored the blood lipid level and dynamic change trend of acute high blood triglycerides rat model, which was lavage by fructose. Method 48 SD rats were randomly divided into normal diet control group (C1,C2, C3),high fat diet group (M1),high fat chyle agent group (M2),fructose group (M3A,M3B,M4) . Blood was sampled from rat eyeball angular vein when M1 group was raised by 4 week,M2 group was lavage for 2 w,M3 group was at 0. 5 h after the last lavage,which M3A and M3B groups were established by different fructose doses and times of lavage. M4 group was before lavage,at the time of 8 h ,16 h,24 h,36 h after the last lavage respectively,Serum total cholesterol ( TC),triglyceride ( TG),high-density lipoprotein cholesterol (HDL-C),low density lipoprotein cholesterol ( LDL-C) were tested. Result In high-fat diet and high fat chyle groups,TC increased significantly ( P < 0. 05 ) but TG was no significant difference. In fructose group ,TG increased significantly( P < 0. 05 ) whereas TC,HDL-C was no obviously difference,furthermore,the blood lipids level between M3A and M3B groups were no difference;In M4 group,TC,HLD -C level decreased as time went on,TG peaked at 8 h,decreased to base value at 36 h. Conclusion TG rapidly rised stability by fructose lavage , meanwhile,in fructose groups,TG increased obviously,it could achieve the same effect by different doses and times, TG lasts for 36 h.

Key words: acute high blood triglycerides, TC, rat modes

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