CHI3L1 and Lewy body dementia: There was no significant difference in protein load between DLB and control groups for Iba1 (P = 0.537), HLA-DR (P = 0.943), CD68 (P = 0.118), CD64 (P = 0.582), CD32b (P = 0.705), CHI3L1 (P = 0.276), or IL4R (P = 0.912).