ICAM1 and Alzheimer disease: MIP-1b showed a suggestive association with AD, with P = 0.024 (P-value < 0.05, Q > 0.05), whereas stem cell factor (P = 0.031) and ICAM-1 (P = 0.016) showed suggestive associations with hippocampal volume (P < 0.05 level, Q > 0.05).