title: Toxicity-induced aberrant methylation of DNA and its repair.
mesh_terms: D000478:Alkylation; D000818:Animals; D002273:Carcinogens / Q000633:toxicity*; D056486:Chemical and Drug Induced Liver Injury / Q000378:metabolism; D004247:DNA / Q000378:metabolism*; D004260:DNA Repair / Q000187:drug effects*; D005557:Formaldehyde / Q000378:metabolism; D006147:Guanine / Q000378:metabolism; D006834:Hydrazines / Q000633:toxicity; D008745:Methylation; D008763:Methylhydrazines / Q000633:toxicity; D012436:S-Adenosylmethionine / Q000378:metabolism
chemical_list: D002273:Carcinogens; D006834:Hydrazines; D008763:Methylhydrazines; D005557:Formaldehyde; D006147:Guanine; D012436:S-Adenosylmethionine; D004247:DNA