IL1A and amyotrophic lateral sclerosis: In contrast, IL-1α as well as IL-1β levels were significantly enhanced in the SC of ALS patients (IL-1α: p = 0.003; Figure 7C; IL-1β: p < 0.001; Figure 7D) or unchanged/not detectable within the MC and OL of ALS patients and healthy controls (Figures 7C,D).