Figure 2From: Intradiscal application of rhBMP-7 does not induce regeneration in a canine model of spontaneous intervertebral disc degenerationRepresentative histological images of nucleus pulposus cells (NPCs) cultured in pellets for 28 days stained with Safranin-O/fast green. NPC pellets treated with 100 ng/ml rhBMP-7 showed a positive Safranin-O/fast green staining for glycosaminoglycan (GAG) and an increased size compared with the negative control and the 10 ng/ml rhBMP-7-treated pellets.Back to article page