PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19295663-7 2009 TNF-alpha-induced endothelial cell apoptosis was associated with dramatic increases in production of intracellular hydrogen peroxide (approximately 20 times greater than control) and superoxide (approximately 16 times greater than control), as measured by dichlorofluorescein and dihydroethidium fluorescent staining, respectively. Superoxides 183-193 tumor necrosis factor Homo sapiens 0-9