NDUFA9 and early-onset autosomal dominant Alzheimer disease: (16) also discovered the core genes related to Alzheimer’s disease (AD) and sleep disorders via gene module analysis, including ATP5A1, UQCRC2, ATP5B, UQCRC1, COX5A, SOD1, GAPDH, NDUFV2, NDUFA9, and NDUFS3 genes.