PSEN2 and early-onset autosomal dominant Alzheimer disease: Besides, various gene mutations closely associated with mitochondrial function, including those involving amyloid precursor protein (APP), presenilin 1 (PSEN1), 46 presenilin 2 (PSEN2), apolipoprotein E (ApoE) and a disintegrin and 71 metalloprotease 10 (ADAM10), lead to Alzheimer’s disease [48].