Figure 2
From: Calcium deposition in osteoarthritic meniscus and meniscal cell culture
ATP-induced calcium deposition. ATP-induced calcium deposition in monolayer cultures of osteoarthritis (OA) meniscal cells derived from five OA patients (right-hand group) was significantly higher than that in the monolayer cultures of normal control meniscal cells derived from three osteosarcoma patients (left-hand group). The difference between the two groups was statistically significant (*P < 0.005). Count per minute (CPM) data were normalized against total protein levels.