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- Title
PPAR Gamma Expression Levels during Development of Heart Failure in Patients with Coronary Artery Disease after Coronary Artery Bypass-Grafting.
- Authors
Wojtkowska, Izabela; Tysarowski, Andrzej; Seliga, Katarzyna; Siedlecki, Janusz A.; Juraszyński, Zbigniew; Marona, Milosz; Greszata, Lidia; Skrobisz, Anna; Kaminski, Karol; Sawicki, Robert; Stępińska, Janina
- Abstract
Genetic research has elucidated molecular mechanisms of heart failure (HF). Peroxisome proliferator-activated receptors (PPARs) seem to be importantin etiologyofHF. The aim of studywas to findthecorrelation between PPARγexpression during development of HF in patients and coronary artery disease (CAD) after coronary artery bypass-grafting (CABG). Methods and Results. We followed up 157 patients (mean age 63) with CAD without clinical, laboratory, or echo parameters of HF who underwent CABG. Clinical and laboratory status were assessed before CABG and at 1,12, and 24 months. During CABG slices of aorta (Ao) and LV were collected for genetic research. HF was defined as LVEF <40% or NT-proBNP >400pg/mL or 6MWT <400 m. Patients were divided into 2 groups: with and without HF. PPARγexpression in Ao and LV was not increased in both groups at 2-year followup. Sensitivity of PPARγexpression in Ao above 1.1075 in detection of HF was 20.5% (AUC 0.531, 95% CI 0.442-0.619). Positive predictive value (Ppv) was 85.7%. Sensitivity and specificity of PPARγexpression in the LV in detection of HF were 58% and 92.9%, respectively (AUC 0.540, 95% CI 0.452-0.626). Ppv was 73.2%. Conclusion. PPARγ expression in Ao and LV was comparable and should not be used as predictive factor for development of HF in patients with CAD after CABG.
- Subjects
CORONARY disease; GENE expression; HEART failure; CORONARY artery bypass; GRAFT rejection; PEROXISOME proliferator-activated receptors; PATIENTS
- Publication
PPAR Research, 2014, p1
- ISSN
1687-4757
- Publication type
Article
- DOI
10.1155/2014/242790