IL15 and amyotrophic lateral sclerosis: When looking at the unadjusted p value, 26 molecules were significantly altered in the ALS group: interleukin (IL)‐15, IL‐16, and Aβ1‐40 were downregulated, whereas the levels of the aforementioned markers, other interleukins, and several cytokines were higher in disease samples (Figs S2 and S3A,B).