PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19003130-6 1999 Furthermore, we found that hIL-6 production level of I13 was slightly improved by raising the CO(2) concentration from 5 to 8% possibly because of the enhanced growth rate. co(2) 94-99 interleukin 6 Homo sapiens 27-32 20450730-14 2010 The CO(2) environment up-regulates the level of IL-6. co(2) 4-9 interleukin 6 Homo sapiens 48-52 19003130-9 1999 However when cultured in 8% CO(2) condition, not only cell number, but also productivity increased significantly, resulted in great augmentation of hIL-6 production, maximum production being 88.6 mug/ml/3 days. co(2) 28-33 interleukin 6 Homo sapiens 148-153 21879351-7 2012 The results of this study may imply that progressive decline in partial CO(2) pressure (hypocapnia) that develops during prolonged exercise may contribute to increased interleukin-6 production. co(2) 72-77 interleukin 6 Homo sapiens 168-181