PPAR

Peroxisome proliferator-activated receptors (PPARs) are a group of nuclear receptor proteins that function as transcription factors regulating gene expression. There are three main isoforms: PPARα, PPARβ/δ, and PPARγ, each with distinct tissue distribution and biological roles. PPARα is primarily expressed in liver, heart, and muscle, where it regulates fatty acid oxidation and lipid metabolism[1]. PPARβ/δ is widely expressed and involved in energy homeostasis, glucose metabolism, and inflammation modulation[1]. PPARγ is highly expressed in adipose tissue and plays a central role in adipogenesis, insulin sensitivity, and lipid storage[2].