Moreover, in the mRNA‐seq we found aldehyde dehydrogenases (ALDH1L2, ALDH1B1, ALDH4A1, and ALDH18A1), enzymes involved in lipid peroxidation, and some antioxidant enzymes (CBR3, CYB5R3, ETHE1, PRXL2A, and SQOR), among the DEGs between IBM and CTL fibroblasts. The gene discussed is ALDH1L2; the disease is inclusion body myositis.