烯酸乙胺通过激活核受体PPAR-alpha来调节食和体重
Jin Fu1, Silvana Gaetani, Fariba Oveisi
1Department of Pharmacology, University of California, Irvine, California 92697-4625, USA.
Nature
|September 5, 2003
概括
奥利欧乙醇胺 (OEA) 通过激活PPAR-alpha受体来调节和体重. 这一发现揭示了PPAR-alpha在行为中的新作用,并为饮食障碍提供了潜在的治疗方法.
科学领域:
- 生物化学 生物化学
- 代谢过程中的代谢.
- 神经科学是一个神经科学.
背景情况:
- 奥利欧乙醇胺 (OEA) 是一种参与和体重调节的脂质.
- 没有完全理解OEA的分子标和作用机制.
- 在结构上,OEA与安纳米德相似,但不结合大麻素受体.
研究的目的:
- 为了确定OEA的分子点.
- 阐明OEA调节和体重的机制.
- 探索OEA在饮食障碍方面的治疗潜力.
主要方法:
- 具有约束力的测试以确定OEA的分子点.
- 给野生型和缺乏PPAR-α的小鼠服用OEA.
- 对小鼠小肠中的基因表达的分析.
- 测试PPAR-α激动剂的作用.
主要成果:
- EA与氧酶增殖器激活受体-α (PPAR-α) 结合具有很高的亲和力.
- 在野生类型的小鼠中,OEA的使用减少了体重增加,并诱导了腹感,但在缺乏PPAR-alpha的小鼠中却没有.
- 在小肠中,OEA调节PPAR-alpha点基因,影响脂质代谢和氧化合成酶.
- PPAR-alpha激动剂模仿OEA的作用,而PPAR-gamma和PPAR-beta/delta激动剂则没有.
结论:
- 通过激活PPAR-alpha,OEA对和体重产生影响.
- PPAR-alpha在调节养行为方面发挥着以前未知的作用.
- EA和PPAR-alpha激活代表了管理饮食障碍和肥胖的潜在治疗策略.
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