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白木香叶95%乙醇提取物在db/db糖尿病小鼠上的降糖作用

姜珊, 姜勇, 管又飞, 屠鹏飞*, 汪科元, 陈金明   

  1. 1. 北京大学医学部 天然药物及仿生药物国家重点实验室; 药学院 天然药物学系, 北京 100191
    2. 北京大学医学部 基础医学院 生理和病理学系, 北京大学糖尿病中心, 北京 100191
    3. 广东省 电白县 南药药业有限公司, 广东 电白 525432
  • 收稿日期:2011-04-26 修回日期:2011-09-20 出版日期:2011-11-15 发布日期:2011-11-15
  • 通讯作者: 屠鹏飞*

Effects of 95% ethanol extract of Aquilaria sinensis leaves on hyperglycemia in diabetic db/db mice

Shan Jiang, Yong Jiang, You-Fei Guan, Peng-Fei Tu*, Ke-Yuan Wang, Jin-Ming Chen   

  1. 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing 100191, China
    2. Department of Physiology and Pathophysiology, Peking University Diabetes Center, Peking University Health Science Center, Beijing 100191, China
    3. Guangdong Dianbai Nanyao Pharmaceutical Co. Ltd., Guangdong Dianbai 525432, China
  • Received:2011-04-26 Revised:2011-09-20 Online:2011-11-15 Published:2011-11-15
  • Contact: Peng-Fei Tu*

摘要:

白木香叶为中国广东省治疗糖尿病的民间药物, 关于其降糖作用和机制未见报道。本研究采用白木香叶95%乙醇提取物(AE), 灌胃给药于db/db 2型糖尿病小鼠, 4周之后发现AE高剂量组 (600 mg/kg) 具有降低db/db小鼠空腹血糖和糖化血红蛋白水平, 改善糖耐量的作用。作用机制研究表明, AE可能是通过激活腺苷酸活化蛋白激酶 (AMPK), 起到了改善胰岛素抵抗, 降低血糖的作用, 并且AE未表现出引起动物体重增加的副作用, 可能成为噻唑烷二酮之外的治疗肥胖相关糖尿病药物的新选择。

关键词: 白木香, 糖尿病, db/db小鼠, 空腹血糖, 糖化血红蛋白, 口服糖耐量, 腺苷酸活化蛋白激酶

Abstract:

The leaves of Aquilaria sinensis (Lour.) Gilg have been used in folk medicine for the treatment of diabetes in Guangdong Province, China. In this study, effects of ethanol extract of Aquilaria sinensis leaves on hyperglycemia were investigated in diabetic db/db mice. After 4 weeks of administration, the 95% ethanol (EtOH) extract of Aquilaria sinensis leaves (AE), especially at high dose level (600 mg/kg), activated AMP-activated protein kinase (AMPK), resulting in reduced fasting blood glucose and glycosylated hemoglobin levels in db/db mice. In addition, the oral glucose tolerance test (OGTT test) showed that AE could remarkably improve insulin resistance. Compared to Thiazolinediones (TZDs), no weight gain was observed after AE administration, which is a severe side effect of TZDs. The data suggested that AE could act as an activator of AMPK, and might be used as an alternative to TZDs in the management of obesity-related diabetes.

Key words: Aquilaria sinensis, Diabetes, db/db mice, Fasting glucose level, HbA1c, OGTT, AMPK

中图分类号: 

Supporting:

Foundation items: New-Century Talent Program, Ministry of Educating of China (Grant No. 985-2-102-113), and National Key Technology R&D Program "New Drug Innovation" of China (Grant No. 2009ZX09311-004, 2012ZX09301-002-002-002).
*Corresponding author. Tel.: 86-10-82802750