‘Longevity gene’ may protect the brain from Alzheimer’s by boosting DNA repair, study finds By Latest & Breaking News on Fox News Comments Off on ‘Longevity gene’ may protect the brain from Alzheimer’s by boosting DNA repair, study finds 4 Min Read A new study suggests the APOE2 longevity gene may protect the brain from Alzheimer's by helping neurons repair DNA damage and resist cell aging.