Back to today’s briefing

Story perspectives

Pollution Linked to Alzheimer's: DNA Damage Uncovered

10/10/2025

25 3

Summary

Story summary

Environmental factors like heavy metals and air pollution increase somatic mutations linked to Alzheimer's by damaging DNA.
Oxidative stress and reactive oxygen species drive neuronal DNA damage, raising double-strand breaks.
Pathogenic Tau protein may activate retrotransposons, destabilizing neuronal DNA.
Base excision repair and nucleotide excision repair are essential in neurons but often insufficient.

1 of 1

Story summary

Environmental factors like heavy metals and air pollution increase somatic mutations linked to Alzheimer's by damaging DNA.
Oxidative stress and reactive oxygen species drive neuronal DNA damage, raising double-strand breaks.
Pathogenic Tau protein may activate retrotransposons, destabilizing neuronal DNA.
Base excision repair and nucleotide excision repair are essential in neurons but often insufficient.