PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22812506-4 2012 Intracellular ROS levels were also measured and shown to increase significantly following exposure of the C3A to the low toxicity NMs (MWCNT and TiO(2)). mwcnt 135-140 complement C3 Homo sapiens 106-109