Figure 6. Senescent satellite cells exhibit altered lipid metabolism. (A) Free fatty acids profiling in young (MY) and senescent myoblasts (MS). (B) Increased glycerolipids turnover in senescent cells. PL: phospholipids; TAG: triacylglycerols; DAG: diacylglycerols; MAG: monoacylglycerols; FA: fatty acids; GP: glycerol phosphate. C: choline; E: ethanolamine. (C) Free carnitine and acylcarnitine profiling. The acyl chain length (c) is denoted by the corresponding metabolite number (e.g., C0 = free carnitine, C2 = acetylcarnitine; C3 =proprionylcarnitine). (D) Sphingolipids metabolism in young and senescent myoblasts. Data are expressed as mean ± S.E.M of six independent experiments. * p <0.05. For details of box plots see Figure legend 4.