CD68 and amyotrophic lateral sclerosis: We therefore quantified the levels of L-ferritin (Fig. 3A–C), HLA-DR (Fig. 3D–F), CD68 (Fig. 3G–I), CD74 (Fig. 3J–L), and Iba1 (Fig. 3M–O) in the ALS and control motor cortex and hippocampus.