PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16670642-11 2006 In contrast, plasma levels of nitrite/nitrate, IL-1ra (as marker of cytokine response), remained markedly increased at 5 h after endotoxin infusion as compared with baseline values. Nitrites 30-37 interleukin-1 receptor antagonist protein Sus scrofa 47-53