高密度脂蛋白调节2型糖尿病患者的葡萄糖代谢
Brian G Drew1, Stephen J Duffy, Melissa F Formosa
1Baker IDI Heart and Diabetes Institute, Melbourne, Australia.
Circulation
|April 8, 2009
概括
复制的高密度脂蛋白 (HDL) 通过增强胰岛素和激活肌肉中的AMP激活蛋白激酶来降低2型糖尿病的血糖. 这表明HDL疗法可能治疗2型糖尿病除了心血管益处之外.
科学领域:
- 代谢综合征是代谢综合征的一种.
- 心血管疾病的风险
- 葡萄糖的新陈代谢
背景情况:
- 低高密度脂蛋白 (HDL) 与心血管风险增加和代谢综合征有关.
- 研究了HDL在通过胰岛素和AMP激活蛋白激酶 (AMPK) 调节骨肌肉中的葡萄糖代谢中的作用.
研究的目的:
- 为了研究复制HDL (rHDL) 对2型糖尿病患者葡萄糖代谢的影响.
- 为了确定rHDL是否激活骨肌中的AMP激活蛋白激酶 (AMPK).
主要方法:
- 这是一项双盲,安慰剂控制的交叉研究,涉及13名2型糖尿病患者.
- 静脉注射rHDL (80 mg/kg) 或安慰剂.
- 在骨肌肉活检中测量血葡萄糖,胰岛素和AMPK通路激活 (乙-CoA氧化酶β酸化).
- 评估人类骨肌肉细胞培养中的葡萄糖吸收.
主要成果:
- 与安慰剂相比,rHDL显著降低了血葡萄糖.
- rHDL增加了血胰岛素和家庭静止模型评估的β细胞功能指数.
- rHDL激活了骨肌中的AMP激活蛋白激酶 (AMPK) 途径.
- HDL和阿波利波蛋白AI增加了人类骨肌肉细胞的葡萄糖吸收.
结论:
- 在2型糖尿病患者中,rHDL通过增强胰岛素分泌和激活骨肌肉中的AMPK来有效降低血葡萄糖.
- 提高HDL的疗法显示出治疗2型糖尿病的潜力,超出了它们在动脉样硬化管理中的既定作用.
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