FABP4 and congestive heart failure: Furthermore, the state of CHF was marked by a significant increase in Fatty-acid-binding protein 4 (FABP4) and an abnormal decrease in hormone-sensitive triglyceride lipase (HSL) and peroxisome proliferators activated recepotor-γ (PPAR-γ), which are cardiac indices related to lipid metabolism, as illustrated in Figures 2F–I.