IL15 and Parkinson disease: In CSF, sCD163, VCAM‐1, ICAM‐1, IL‐15, IL‐8, SAA, PIGF, and VEGF‐C and in serum, sCD163 (female), CRP (female), and VCAM‐1 (all) showed statistical power to predict PD (Fig. 4K–L; Supporting Information S3).