PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11305783-5 2001 The experiments with modified S9 mix allow the conclusion that the antioxidant enzymes catalase and superoxide dismutase present in S9 liver fraction play a role in the protection of cells from the genotoxic action of hydralazine and dihydralazine. Hydralazine 218-229 catalase Mus musculus 87-95