Full Anatomical Recovery of the Dopaminergic System after a Complete Spinal Cord Injury in Lampreys

Figure 2

Confocal photomicrographs of transverse sections of the spinal cord showing details of the dopaminergic innervation of the spinal cord in control and lesioned animals. (a) Dopamine-ir fibers in a control unlesioned larva. (b) Dopamine-ir fibers in the rostral stump of a 2 wpl larva. (c) Dopamine-ir fibers in the rostral stump of a 4 wpl larva. (d) Dopamine-ir fibers in the rostral stump of a 24 wpl larva. (e) Dopamine-ir fibers in the caudal stump of a 2 wpl larva. (f) Dopamine-ir fibers in the caudal stump of a 24 wpl larva. Star indicates the central canal. In all microphotographs dorsal is at the top. Scale bars = 50 μm.

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