PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 2554932-3 1989 In this study, we demonstrated that monosodium urate (MSU) and calcium pyrophosphate dihydrate (CPPD) crystals, and to a lesser extent, hydroxyapatite crystals, increased IL-6 production by synoviocytes and monocytes in vitro. Durapatite 136-150 interleukin 6 Homo sapiens 171-175