Combination effects of Nilo and ZOL evaluated in co-culture system.

Living cell numbers which were treated with saline (no treat), Nilo, ZOL and Nilo plus ZOL (N+Z) either in control culture system without any co-cultured cells (white bar) or co-culture system (black bar) were counted by trypan blue assay. Co-culture system consisted of osteoblasts, osteoclasts and bone slices.