Figure 2From: Brain-derived neurotrophic factor and its receptor in the human and the sand rat intervertebral discImmunolocalization of brain-derived neurotrophic factor in annulus cells with prominent encapsulating extracellular matrix. (a) Inner annulus, subject number 6, L4 to L5. (b) Inner annulus, subject number 12, L4 to L5. Bars = 10 μm.Back to article page