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Open Access 01-12-2016 | Research

Type 2 diabetes is associated with decreased PGC1α expression in epicardial adipose tissue of patients with coronary artery disease

Authors: Inmaculada Moreno-Santos, Luis Miguel Pérez-Belmonte, Manuel Macías-González, María José Mataró, Daniel Castellano, Miguel López-Garrido, Carlos Porras-Martín, Pedro L. Sánchez-Fernández, Juan José Gómez-Doblas, Fernando Cardona, Eduardo de Teresa-Galván, Manuel Jiménez-Navarro

Published in: Journal of Translational Medicine | Issue 1/2016

Abstract

Background

Although recent studies indicate that epicardial adipose tissue expresses brown fat-like genes, such as PGC1α, UCP1 and PRDM16, the association of these genes with type 2 diabetes mellitus (DM2) in coronary artery disease (CAD) remains unknown.

Methods

PGC1α, UCP1, and PRDM16 mRNAs expression levels were measured by real-time PCR in epicardial and thoracic subcutaneous adipose tissue from 44 CAD patients (22 with DM2 [CAD-DM2] and 22 without DM2 [CAD-NDM2]) and 23 non-CAD patients (NCAD).

Results

The CAD-DM2 patients had significantly lower PGC1α and UCP1 expression in epicardial adipose tissue than the CAD-NDM2 and NCAD patients. However, PGC1α and UCP1 mRNA trended upward in subcutaneous adipose tissue from CAD-DM2 patients. At multiple regression analysis, age, body mass index, left ventricular ejection fraction, UCP1 expression of epicardial adipose tissue and diabetes came out to be independent predictors of PGC1α levels. Epicardial adipose tissue PGC1α expression was dependent on the number of injured coronary arteries and logistic regression analysis showed that PGC1α expression in epicardial adipose tissue could exert a protective effect against coronary lesions.

Conclusions

DM2 is associated with decreased expression of PGC1α and UCP1 mRNA in epicardial adipose tissue of patients with CAD, likely reflecting a loss of brown-like fat features. Decreased expression of PGC1α in human epicardial adipose tissue is associated with higher prevalence of coronary lesions.

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Title: Type 2 diabetes is associated with decreased PGC1α expression in epicardial adipose tissue of patients with coronary artery disease
Authors: Inmaculada Moreno-Santos
Luis Miguel Pérez-Belmonte
Manuel Macías-González
María José Mataró
Daniel Castellano
Miguel López-Garrido
Carlos Porras-Martín
Pedro L. Sánchez-Fernández
Juan José Gómez-Doblas
Fernando Cardona
Eduardo de Teresa-Galván
Manuel Jiménez-Navarro
Publication date: 01-12-2016
Publisher: BioMed Central
Published in: Journal of Translational Medicine / Issue 1/2016
Electronic ISSN: 1479-5876
DOI: https://doi.org/10.1186/s12967-016-0999-1

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