Our gene‐metabolite‐disease network analysis revealed that eight genes (SLC16A10, SLC7A8, SLC6A19, IL4l1, SLC6A14, IARS, SLC38A2, and SLC6A15) are linked to metabolites of which the CSF levels were significantly altered in our rat model of AD. This evidence concerns the gene SLC38A2 and Alzheimer disease.