Fig. 1. L4-L5 spinal cord segments with fluorescent markers applied in dorsal roots. (A) RDA administered in L4 and FDA in L5. RDA leakage stained some interneurons in red (scale bar=10 µm). (B) Afferent fibers marked by FDA and RDA mixture in L5 dorsal root. The arrows indicate a red-stained fiber, close to it some interneurons marked in red (scale bar=10 µm). (C, D) Terminal afferent fibers in the dorsal spinal cord, the arrows indicate small size neurons stained in yellow (scale bar=10 µm).
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