Figure 6From: Brain-derived neurotrophic factor and its receptor in the human and the sand rat intervertebral discImmunolocalization of brain-derived neurotrophic factor receptor in human intervertebral discs. (a) Immunolocalization of brain-derived neurotrophic factor receptor in subject number 7, L4 to L5. OA, outer annulus. (b) Negative control. Bars = 50 μm.Back to article page