SLC7A5is an amino acid transporter light chain, also known as LAT1, that has been established as a biomarker for the development of cancer [23].Another age-related disease gene in brain wasMS4A6, a membrane-spanning four-domains gene which has been associated with Alzheimer's disease [24], a known aging-related disease. Here, SLC7A5 is linked to early-onset autosomal dominant Alzheimer disease.