PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 10629088-4 2000 The prooxidants hydrogen peroxide, menadione and glyceraldehyde raised ROS in large tumor spheroids and significantly down-regulated Pgp within 24 hr. Glyceraldehyde 49-63 ATP binding cassette subfamily B member 1 Homo sapiens 133-136