| 8-OHdG | 8-hydroxy-2’-deoxyguanosine |
| 8-OHG | 8-hydroxyguanine |
| AD | Alzheimer’s disease |
| Aβ | amyloid-β |
| AICD | APP intracellular domain |
| APE-1 | AP (apurine/apirimidine) endonuclease 1 |
| APP | amyloid precursor protein |
| APTX | ataxia with oculomotor apraxia |
| ATM | ataxia-telangiectasia mutated |
| AUC | area under the curve |
| BER | base excision repair |
| CDK | cyclin-dependent kinase |
| CIN | Chromosome instability |
| CNS | central nervous system |
| CSF | cerebrospinal fluid |
| DEGs | differentially expressed genes |
| DSBs | double strand breaks |
| FEN1 | FLAP endonuclease 1 |
| FXTAS | fragile-X-associated tremor/ataxia syndrome |
| HR | homologous recombination |
| HSV-1 | herpes simplex virus-type 1 |
| iPSC | induced pluripotent stem cells |
| LOAD | sporadic late onset AD |
| MCI | mild cognitive impairment |
| MUTYH | MYH glycosylase |
| NDP | adenine dinucleotide |
| NHEJ | non-homologous end joining |
| NEIL1 | Nei like DNA glycosylase 1 |
| NTH1 | Nth like DNA glycosylase |
| OGG1 | DNA glycosylase |
| PARP1 | poly(ADP) ribose polymerase 1 |
| PBMCs | peripheral blood mononuclear cells |
| PCAD | preclinical AD |
| PNKP | polynucleotide kinase phosphatase |
| POLβ | DNA polymerase β |
| POLD1 | the catalytic subunit of DNA polymerase δ |
| PP4 | Protein phosphatase 4 |
| ROS | reactive oxygen species |
| SSBs | single strand breaks |
| TDP1 | tyrosyl-DNA phosphodiesterase 1 |
| TOP2β | topoisomerase Iiβ |
| WHO | World Health Organization |
| XRCC1 | X-ray repair cross-complementing protein 1. |