Following on in silico and in vitro work, the effect of MCAD deficiency on CoA metabolism was investigated. Using a recently published HILIC-MS/MS method, free and acylated CoA species could be measured simultaneously in HepG2 MCAD-KO cells. The levels of CoA biosynthesis intermediates and total CoA was also characterised by HPLC in liver samples from MCAD-KO mice exposed to energetic stress (fasting adn cold). qPCR was applied to investigate changes in the CoA metabolism that might constitute ...