Peroxisome Proliferator Activated Receptor-α Association With Silent Information Regulator 1 Suppresses Cardiac Fatty Acid Metabolism in the Failing Heart.

ABSTRACT:

Background

Heart failure is accompanied by changes in cardiac metabolism characterized by reduced fatty acid (FA) utilization. However, the underlying mechanism and its causative involvement in the progression of heart failure are poorly understood. The peroxisome proliferator activated receptor-α (PPARα)/retinoid X receptor (RXR) heterodimer promotes transcription of genes involved in FA metabolism through binding to the PPAR response element, called direct repeat 1 (DR1). Silent information regulator 1 (Sirt1) is a histone deacetylase, which interacts with PPARα.

Methods and results

To investigate the role of PPARα in the impaired FA utilization observed during heart failure, genetically altered mice were subjected to pressure overload. The DNA binding of PPARα, RXRα, and

SUBMITTER: Oka S 

PROVIDER: S-EPMC4651813 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature