Impact of abdominal and epicardial fat on the association between plasma adipocytokine levels and coronary atherosclerosis in non-obese patients

Ken Harada, Tetsuya Amano, Takashi Kataoka, Masahiro Takeshita, Kazuhiro Harada, Ayako Kunimura, Yohei Takayama, Norihiro Shinoda, Bunichi Kato, Tadayuki Uetani, Masataka Kato, Nobuyuki Marui, Hideki Ishii, Tatsuaki Matsubara, Toyoaki Murohara

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Objective: Ectopic fat accumulation is associated with coronary artery disease. Visceral adipose tissue has paracrine and systemic effects and is a source of adipocytokines. It has been implicated in the pathogenesis of coronary atherosclerosis; however, nothing is known about whether increases in epicardial fat have the same effect on coronary atherosclerosis as increases in abdominal visceral fat. Methods: We examined 216 consecutive patients suspected to have coronary artery disease. Individuals with acute coronary syndrome and inadequate computed tomography (CT) imaging were excluded. We enrolled 164 patients (65±10 years old; 70% men; body mass index [BMI], 23.8±3.6kg/m2). The plasma concentrations of adiponectin, interleukin-6 (IL-6), plasminogen activator inhibitor-1, and vascular endothelial growth factor were measured. The characteristics of coronary plaque, abdominal visceral fat area, and epicardial fat volume (EFV) were determined by 64-slice CT imaging. Results: EFV was greater in subjects with noncalcified plaque than in those with no plaque or with calcified plaque (126±39mL vs. 98±34mL and 97±45mL, respectively; P=0.010). EFV was significantly correlated with BMI, triglycerides, and the triglyceride/high-density lipoprotein cholesterol ratio (r=0.51, 0.19, and 0.20, respectively) but not with plasma levels of adipocytokines. The plasma adiponectin and IL-6 concentration was significantly correlated with abdominal visceral fat area in coronary plaque patients (r=-0.49 and 0.20). Conclusions: In non-obese Japanese patients, epicardial fat may have unique mechanisms affecting the development of coronary atherosclerosis, which is different from abdominal visceral fat.

Original languageEnglish
Pages (from-to)671-676
Number of pages6
JournalAtherosclerosis
Volume237
Issue number2
DOIs
Publication statusPublished - 01-12-2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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