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ID 116640
Title Alternative
未固定遺体における動脈硬化性冠動脈プラークと冠動脈外膜vasa vasorum及び局所心臓周囲脂肪内炎症との関連
Coronary Plaque and Epicardial Adipose Inflammation
Author
Keywords
Coronary plaque
Epicardial adipose tissue
Fresh cadaver
Inflammatory molecules
Vasa vasorum
Content Type
Thesis or Dissertation
Description
Background: The coronary adventitia has recently attracted attention as a source of inflammation because it harbors nutrient blood vessels, termed the vasa vasorum (VV). This study assessed the link between local inflammation in adjacent epicardial adipose tissue (EAT) and coronary arterial atherosclerosis in fresh cadavers.
Methods and Results: Lesion characteristics in the left anterior descending coronary artery of 10 fresh cadaveric hearts were evaluated using integrated backscatter intravascular ultrasound (IB-IVUS), and the density of the VV and levels of inflammatory molecules from the adjacent EAT were measured for each of the assessed lesions. The lesions were divided into lipid-rich, lipid-moderate, and lipid-poor groups according to percentage lipid volume assessed by IB-IVUS. Higher expression of inflammatory molecules (i.e., vascular endothelial growth factor A [VEGFA] and VEGFB) was observed in adjacent EAT of lipid-rich (n=11) than in lipid-poor (n=11) lesions (7.99±3.37 vs. 0.45±0.85 arbitrary units [AU], respectively, for VEGFA; 0.27±0.15 vs. 0.11±0.07 AU, respectively, for VEGFB; P<0.05). The density of adventitial VV was greater in lipid-rich than lipid-poor lesions (1.50±0.58% vs. 0.88±0.23%; P<0.05).
Conclusions: Lipid-rich coronary plaques are associated with adventitial VV and local inflammation in adjacent EAT in fresh cadavers. This study suggests that local inflammation of EAT is associated with coronary plaque progression via the VV.
Journal Title
Circulation Journal
ISSN
13474820
Publisher
Japanese Circulation Society
Volume
84
Issue
5
Start Page
769
End Page
775
Published Date
2020-04-24
Remark
内容要旨・審査要旨・論文本文の公開
本論文は,著者Hiroyuki Itoの学位論文として提出され,学位審査・授与の対象となっている。
EDB ID
DOI (Published Version)
URL ( Publisher's Version )
FullText File
language
eng
TextVersion
ETD
MEXT report number
甲第3564号
Diploma Number
甲医第1515号
Granted Date
2021-12-23
Degree Name
Doctor of Medical Science
Grantor
Tokushima University
departments
Medical Sciences
University Hospital