摘要
目的:探讨合适的饲料配方,在较短的实验周期内形成稳定、适用的高脂高同型半胱氨酸血症(hyperhomocysteinemia,HHcy)动物模型。方法:40只雄性SD大鼠分为4组,每组10只,分别按组给予普通饲料、配方1(基础饲料占88.5%,高脂高胆固醇不添加丙硫氧嘧啶)、配方2(较配方1增加5%蛋黄糖,5%全脂奶粉,0.15%丙硫氧嘧啶)、配方3(0.25%丙硫氧嘧啶,较配方2增加5%蛋黄粉)饲料常规喂养。每周称1次体重,观察体重变化。分别于2,4周取血测定血清中总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)变化及血浆同型半胱氨酸(homocysteine,Hcy)的浓度。结果:与对照组相比配方1组体重没有明显差异;配方2组,3组体重显著下降(P<0.01)。2,4周时与对照组相比,血清TC和LDL-C含量及血浆Hcy浓度,配方1组没有显著性差异;配方2组,3组都有显著升高(P<0.01)。结论:该实验研究调整后的大鼠饲料配方2组是比较合适的饲料配方组成,能在较短的时间内形成稳定的大鼠高脂HHcy血症动物模型。
Objective:We explore a practical feed formulation in order to establish a stable atherosclerosis animal model.With high fat and hyperhomocysteinemia in shorter period.Method:Forty male SD rats were divided into 4 groups(n=10),given different formula feeding with common feed,formulationⅠ(not containing propylthiouracil),formulation II(containing propylthiouracil of 0.15%) and formulation Ⅲ(containing propylthiouracil of 0.25%).weighed once a week.The blood samples were collected at week 2 and 4 respectively,then to determine the levels of total cholesterol(TC),low density lipoprotein cholesterin(LDL-C) in serum and homocysteine(Hcy) in plasma.Result: Compared with the control group,weight of formulationⅠhad no significant difference,while weight of formulation II and formulation Ⅲ decreased significantly(P&lt;0.01);TC,LDL-C and Hcy levels in formulation II and formulation Ⅲ groups increased significantly(P&lt;0.01) at 2,4 weeks,respectively,but formulationⅠhave no significant difference.Conclusion: In this study,we found that the rats fed with the formulation II can establish a stable atherosclerosis animal model with high fat and hyperhomocysteinemia in shorter period.
出处
《中国实验方剂学杂志》
CAS
北大核心
2013年第9期207-210,共4页
Chinese Journal of Experimental Traditional Medical Formulae
基金
国家重大新药创制专项(2012ZX09301002-004)
国家自然科学基金项目(81073085)
作者简介
[第一作者]李然,硕士研究生,从事药理学研究,Tel:010-62835608,E-mail:liran8840@126.com
[通讯作者]刘建勋,博士,研究员,从事中药药理学研究,Tel:010-62835601,E-mail:Liujx0324@sina.com