检验医学 ›› 2012, Vol. 27 ›› Issue (7): 579-584.

• 生物化学检验论著 • 上一篇    下一篇

α硫辛酸对肥胖大鼠血清同型半胱氨酸的影响

闫国超,邵云,秦小霞,武艳   

  1. 1. 河北医科大学第一医院检验科,河北 石家庄 050031;2. 河北医科大学第一医院超声科,河北 石家庄 050031
  • 收稿日期:2012-02-13 修回日期:2012-03-02 出版日期:2012-07-30 发布日期:2012-07-05
  • 作者简介:闫国超,男,1972年生,硕士,副主任技师,主要从事临床生化检验工作。
  • 基金资助:

    河北省科技支撑计划重点项目(10276152)

Influence of alpha-lipoicacid on serum homocysteine in obese rats

  1. 1. Department of Clinical Laboratory,the First Hospital of Hebei Medical University,Hebei Shijiazhuang 050031,China;2. Ultrasonography Department,the First Hospital of Hebei Medical University,Hebei Shijiazhuang 050031,China
  • Received:2012-02-13 Revised:2012-03-02 Online:2012-07-30 Published:2012-07-05

摘要: 目的 观察α-硫辛酸(ALA)对高脂饮食诱导(HFD)的肥胖大鼠血清同型半胱氨酸(Hcy)水平的影响。方法 选择Wistar大鼠50只,随机选10只普通饲料喂养作为普通饲料组,其余40只高脂饲料喂养10周后评价肥胖大鼠模型,成模肥胖大鼠再随机分为2组:HFD组和HFD+ALA组,后者腹腔注射ALA(30 mg/kg)2周。测定各组大鼠血清Hcy、空腹血糖(FBG)、空腹胰岛素(FIns)、甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、游离脂肪酸(FFA)。采用稳态模型胰岛素抵抗指数(HOMA-IR)计算胰岛素抵抗指数(IRI)结果 高脂饮食10周后成功诱导肥胖大鼠模型32只。与普通饲料组比较,HFD组Hcy、FIns、IRI、TC、TG、HDL-C、LDL-C等明显升高(P<0.05),而FBG、FFA无明显差异(P>0.05)。与HFD组比较,HFD+ALA组Hcy、FIns、IRI、TC、TG、HDL-C、LDL-C、FFA水平明显下降,而FBG无明显差异。HFD+ALA组FFA水平明显低于HFD组及普通饲料组(P<0.05)。结论 高脂饮食诱导的肥胖大鼠血清Hcy水平升高;ALA能够改善高脂饮食诱导的胰岛素抵抗状态,并降低血清Hcy水平。

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Abstract: Objective To observe the influence of alpha-lipoicacid(ALA) on serum homocysteine(Hcy) level in obese rats fed with high-fat diet(HFD). Methods A total of 10 rats were selected randomly from 50 Wistar rats,and were fed as a normal forage group,whereas the other 40 rats received a HFD for 10 weeks. Its obese rat model was evaluated,and obese rats were randomly classified into 2 groups:HFD group and HFD+ALA group who were injected with ALA for 2 weeks intraperitoneally at a dose of 30 mg/kg. The Hcy,fasting blood glucose(FBG),fasting insulin(FIns),triglyceride(TG),total cholesterol(TC),high density lipoprotein cholesterol(HDL-C),low density lipoprotein cholesterol(LDL-C) and non-esterified fatty acid(FFA)in serum were determined. The insulin resistance index(IRI) was calculated homeostatic model assessment of insulin resistance(HOMA-IR).Results The obese rat models of 32 obese rats were obtained after 10 weeks′ HFD. Compered to the normal forage group,HFD group gained a higher levels of Hcy,FIns,IRI,TC,TG,HDL-C and LDL-C(P<0.05). FBG and FFA had no obvious difference between the 2 groups(P>0.05). Compared to the HFD group,HFD+ALA group had a lower levels of Hcy,FIns,IRI,TC,TG,HDL-C,LDL-C and FFA,and FBG had no obvious difference. FFA levels in HFD+ALA group were significantly lower than those in the HFD group and the normal forage group(P<0.05). Conclusions Obese rats induced by HFD have a high level of Hcy. ALA can improve insulin resistance,and reduce the serum Hcy level.