PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11355387-10 2001 Recent in vitro results on fibroblasts transfected with HO-1 cDNA showed that, despite cytoprotection with low (less than fivefold compared with untransfected cells) HO-1 activity, high levels of HO-1 expression (more than 15-fold) were associated with significant oxygen toxicity. Oxygen 265-271 heme oxygenase 1 Rattus norvegicus 56-60