PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21859962-4 2011 Stretch-induced fluorescence was reduced significantly (P<0.05) by incubation with Tempol (3.7+-0.8%), pegylated superoxide dismutase (3.2+-1.0%), or apocynin (3.5+-0.9%) but not by pegylated catalase, L-nitroarginine methylester, or Ca(2+)-free medium, relating it to Ca(2+)-independent vascular superoxide. Superoxides 116-126 catalase Mus musculus 195-203