Moreover, Dorszewska et al. [14] showed that the repair process of 8-oxo2dG involves three OGG1 isoforms, 1a, 1b, and 1c, and that OGG1-1c most likely plays the role of a compensatory system in the initial phase of the ongoing degenerative process in AD. Here, OGG1 is linked to Alzheimer disease.