VSNL1 and amyotrophic lateral sclerosis: Furthermore, we found a significant increase in AD CSF VILIP-1 levels compared to PD spectrum, bvFTD, and ALS corroborating data from a study which showed elevated CSF VILIP-1 levels in AD compared to patients with DLB [35] as well as a study which depicted increased CSF VILIP-1 AD levels compared to non-AD-dementias (FTD (n=11), PSP (n=7), LBD (n=1)) [20].