A mitochondrial-immune axis drives the transcriptomic transition from brain aging to Alzheimer's disease (opens in new tab)

Aging is the primary risk factor for Alzheimer's disease (AD), yet the molecular transitions linking normal brain aging to neurodegeneration remain poorly defined. Here, we performed integrative bulk transcriptomic analyses across a multi-region mouse aging atlas, a human aging-to-AD cohort, and an independent human AD validation dataset. Aging is associated with a progressive, region-specific increase in transcriptional perturbation, with the entorhinal cortex and choroid plexus showing the ...