The impact of CerS1 and CerS5 silencing on the content of bioactive lipids, acyl-carnitines, and the protein expression of CPT1B in gastrocnemius muscle of HFD-fed mice: Panel (A)—total content of LCACoA; Panel (B)—total content of DAG; Panel (C)—total content of TAG; Panel (D)—total Cer content; Panel (E)—total content of acyl-carnitines, Panel (F)—protein of CPT1B. Values are mean ± SD (n = 8 per group); a—p < 0.05 vs. LFD; b—p < 0.05 vs. HFD; significance by ANOVA; LFD-low-fat diet, HFD—high-fat diet. The observed molecular weight of indicated proteins is different to the theoretical one, as stated by the antibody manufacturer.