The relationship between inflammation and neoangiogenesis of epicardial adipose tissue and coronary atherosclerosis based on computed tomography analysis

医学 脂肪组织 川地68 炎症 冠状动脉粥样硬化 钙化 心外膜脂肪组织 内科学 心脏病学 冠状动脉钙评分 川地31 动脉 冠状动脉 渗透(HVAC) 纤维帽 病理 冠状动脉疾病 血管生成 钙质沉着 免疫组织化学 物理 热力学
作者
Toshiro Kitagawa,Hideya Yamamoto,Kazuhiro Sentani,Shin’ya Takahashi,Hiroshi Tsushima,Atsuhiro Senoo,Wataru Yasui,Taijiro Sueda,Yasuki Kihara
出处
期刊:Atherosclerosis [Elsevier]
卷期号:243 (1): 293-299 被引量:40
标识
DOI:10.1016/j.atherosclerosis.2015.09.013
摘要

Previous studies indicate that epicardial adipose tissue (EAT) biologically contributes to the progression of coronary atherosclerosis. We evaluated the relationship between EAT pathology, represented by inflammation and neoangiogenesis, and coronary atherosclerosis on computed tomography (CT) images.We performed CT examination in 45 patients scheduled for cardiac surgery (coronary artery bypass graft [CABG], n = 21; non-CABG, n = 24) to assess visceral adipose tissue (VAT) area, EAT volume, coronary calcium score (CCS), and presence of non-calcified coronary plaque (NCP) on CT angiography. Each patient was assessed with the numbers of CD68(+) individual macrophages and CD31(+) neovessels in six random high-power fields (400×) of EAT samples subsequently obtained during cardiac surgery.In three groups based on CCS (mild, 0-100; moderate, 101-400; severe, >400), the moderate group had the most extensive macrophage infiltration (p = 0.0025) and neoangiogenesis (p = 0.0036) in EAT. The patients with NCP had more extensive macrophage infiltration (p = 0.010) and neoangiogenesis (p = 0.0043) in EAT than those without. On multivariate analysis adjusted for age, sex, CABG versus. non-CABG, VAT area, and EAT volume, moderate CCS and the presence of NCP showed significant correlations with increased macrophage infiltration (β = 0.65; p < 0.0001, and β = 0.49; p = 0.0089, respectively) and neoangiogenesis (β = 0.55; p = 0.0011, and β = 0.53; p = 0.012, respectively) in EAT.Inflammation and neoangiogenesis in EAT independently correlate with moderate coronary calcification and presence of NCP, suggesting that these two factors may have a role in promoting coronary atherosclerosis.

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