Lipidomics of iWAT in Pparafl/fl and PparaFatKO mice. Lipidomics of iWAT using liquid chromatography–mass spectrophotometry (LC mass spec) represented as volcano-plot analysis in male (A) and female (B) PparaFatKO and Pparafl/fl mice on high-fat (HFD) or normal-chow (NCD) diets. Organization of the top 50 and bottom 50 most-changed lipids in male (C,D) and female (E,F) PparaFatKO and Pparafl/fl mice. The blue arrows identify cholesterol esters. (male n = 7 NCD and n = 8 HFD, Pparafl/fl; female n = 6 NCD and n = 4 HFD, Pparafl/fl; male n = 7 NCD and n = 8 HFD, PparaHepKO; female n = 6 NCD and n = 4 HFD, PparaHepKO).