FABP3 and Parkinson disease: In this study, the decoy peptides derived from 10 residues in the C‐terminal tail of αSyn prevented the binding of αSyn to FABP3 in the OB and effectively ameliorated the memory deficit in the αSyn PFF mouse model of PD, confirming that αSyn peptides have a great affinity for FABP3 and prevent αSyn toxicity in vivo.