Importantly, treatment of FTD neurons with the mitochondrial antioxidant MitoTEMPO decreased the surface level of GluA1 and GluA(1‐4) (Figures 6D, 6E, 6G, 6H), with no significant effect on total subunit content (Figures 6C, 6F). This evidence concerns the gene GRIA1 and frontotemporal dementia.