Clinica Chimica Acta:基于光学相干断层观察研究分析胆固醇摄取能力(HDL功能的新指标)与冠状动脉斑块特性的关联

2020-04-13 MedSci原创 MedSci原创

动脉粥样硬化病变的胆固醇外流是高密度脂蛋白(HDL)的一个重要功能。

动脉粥样硬化病变的胆固醇外流是高密度脂蛋白(HDL)的一个重要功能。最近,我们建立了一种简单、高通量、无细胞的方法来评估高密度脂蛋白吸收额外胆固醇的能力,这里称之为“胆固醇吸收能力(CUC)”。用以阐明CUC与冠状动脉斑块特性的横断面关系。

本研究收集了135例患者,通过光学相干断层扫描(OCT)测量CUC并评估血管造影狭窄的形态学特征。通过平均脂弧乘以脂质长度(脂质指数)来估计富脂斑块的范围。利用分级系统对oct检测到的巨噬细胞在靶斑块中的聚集程度进行半定量评估。

研究结果显示,125例患者(92.6%)出现脂质丰富的斑块病变。CUC与血脂指数呈负相关(R = - 0.348, P < 0.0001)。此外,CUC与巨噬细胞评分呈负相关(R = - 0.327, P < 0.0001)。相反,循环水平的HDL胆固醇和apoA1都没有显示出类似的关系。

研究证明CUC与脂质丰富的斑块负荷和巨噬细胞积累程度成反比,提示CUC可能对心血管风险分层有用。

原始出处:

Toshihiko Oshita,Ryuji Toh,Association of cholesterol uptake capacity, a novel indicator for HDL functionality, and coronary plaque properties: An optical coherence tomography-based observational study

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    2021-03-09 windight
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    2020-04-14 ZGMFX24A
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