食品科学 ›› 2008, Vol. 29 ›› Issue (5): 409-411.

• 营养卫生 • 上一篇    下一篇

大豆异黄酮对糖耐量异常大鼠早期肾损伤的影响

 梁湘珍, 葛丽霞, 陈静   

  1. 暨南大学医学院; 广东省体育科学研究所; 暨南大学医学院
  • 出版日期:2008-05-15 发布日期:2011-08-26

Effect of Soybean Isoflavone on Early Stage Kidney Injury during Impaired Glucose Tolerance Rat Experiment

 LIANG  Xiang-Zhen, GE  Li-Xia, CHEN  Jing   

  1. 1.College of Medicine,Jinan University;2.Guangdong Provincial Institute of Sports Science
  • Online:2008-05-15 Published:2011-08-26

摘要: 目的:研究大豆异黄酮对D-半乳糖诱导的糖耐量异常大鼠早期肾损伤的影响。方法:按剂量递增法持续腹腔注射D-半乳糖8周,诱导IGT大鼠模型;以高低剂量的大豆异黄酮为受试物,测定各组大鼠血糖水平,血尿素氮和尿微量白蛋白(microalbuminuria,MAU)含量,肾脏乳酸脱氢酶(lactate dehydrogenase,LDH)及其各同工酶活性。结果:模型组大鼠餐后2h血糖,MAU含量,LDH及各同工酶活性明显高于正常对照组(p<0.05);与模型组比较,大豆异黄酮高低剂量组大鼠餐后2h血糖,MAU含量,LDH总比活均明显降低(p<0.05),LDH各同工酶活性也较模型组低。结论:大豆异黄酮可明显改善IGT大鼠餐后血糖水平,降低尿微量白蛋白含量以及肾脏乳酸脱氢酶及其同工酶活性,从而发挥对早期肾脏损伤的保护作用。

关键词: 大豆异黄酮, D-半乳糖, 糖耐量异常, 早期肾损伤

Abstract: Objective:To investigate the effects of soybean isoflavone on early stage kidney injury in impaired glucosetolerance(IGT) rats induced by D-galactose(D-ga1).Methods:To make the IGT model rats by intraperitoneal injection(i.p.) D-gal for 8w.Two doses of SI(soybean isoflavone) were given intragastrically(i.g.) for 6w since the 3rd w,2h BG,BUN,MAU,LDH and LDH isoenzyme activity in every group were tested at the end of the experiment.Results:Compared with the normal control group,2h BG,MAU content and LDH activity of the model group increase obviously(p<0.05),while LDH isoenzyme activity also increases.Compared with the model group,2h BG,MAU content,LDH activity(p<0.05) while LDH isoenzyme activity of the SI group decrease significantly.Conclusion:SI could protect renal damage through improving IGT,decreasing MAU content and renal LDH activity of IGT rats,and regulating the activity of LDH isoenzyme.

Key words: soybean isoflavone, D-galactose, IGT rats, early kidney injury