In a published study by Long et al. NMN was introduced in AD chimeric APP(swe)/PS1(ΔE9) (AD-Tg) mice for mitochondrial OCR assay and on mice having fluorescent proteins tagged to neuronal mitochondria (CaMK2a-mito/eYFP) to assess mitochondrial morphology [8]. This evidence concerns the gene CAMK2A and Alzheimer disease.