PLPP1 and Alzheimer disease: For the adipocytic panel, a total of 13 differentially expressed proteins (ACSL1, CD36, EPHX1, FABP4, HP, HSD11B1, ITIH1, MAOA, PLIN1, PLIN4, PLPP1, RAP2A, SCD) were detected all being more highly expressed in the AD group.