Figure 4From: Activation of intervertebral disc cells by co-culture with notochordal cells, conditioned medium and hypoxia Cell activity of primary cells in 3D alginate bead co-culture. A, B. Porcine notochordal cells (NC) C, D. Bovine nucleus pulposus cells (NPC) and E, F. Bovine annulus fibrosus cells (AFC). The activity was measured by resazurin assay after day 7 (A, C, E, left side) and 14 days (B, D, F, right side) in normoxic (in blue) and hypoxic (in brown) conditions (mean ± SEM, N = 4 co-culture repeats). *Indicates p < 0.05.Back to article page