内皮脂酶在体内因人类的炎症而增加
Karen O Badellino1, Megan L Wolfe, Muredach P Reilly
1School of Nursing, and Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA. kbadelli@nursing.upenn.edu
Circulation
|January 24, 2008
概括
炎症会增加人体内皮质脂酶 (EL) 水平,与代谢综合征标志物相关. 这一发现有助于解释肥胖中的低高密度脂蛋白胆固醇.
科学领域:
- 心血管生物学 心血管生物学
- 代谢研究研究 代谢研究
- 炎症科学 科学 炎症科学
背景情况:
- 内皮脂酶 (EL) 与代谢综合征特征有关,包括脂肪和低高密度脂蛋白胆固醇.
- 据假设,与肥胖相关的炎症可以上调EL.
- 之前的研究显示了EL和代谢综合征指标之间的相关性.
研究的目的:
- 研究健康个体的炎症标志物和EL水平之间的关系.
- 测试血EL度是否随着通过低剂量内毒素诱导的炎症而增加.
主要方法:
- 在858名受试者中测量了炎症标志物 (hs-CRP,IL-6,TNF-RII,ICAM-1,勒丁,阿迪波内克丁).
- 评估了内皮细胞的EL分泌与adiponectin.
- 在20名受试者中诱导实验性内毒素,以测量EL变化.
主要成果:
- 在EL和hs-CRP,IL-6,TNF-RII,ICAM-1和叶丁之间发现了显著的正相关性.
- 在EL和adiponectin之间观察到逆相关性.
- 实验性内毒素增加了EL度的2.5倍,与减少的HDL脂相关.
结论:
- 血EL度与人类的炎症标志物直接相关.
- 实验性内毒症证实,EL受炎症上调.
- 这种机制可能会导致代谢综合征和肥胖症的低HDL胆固醇.
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