NPRA and BNP immunostaining in DRG neurons and spinal cord. A-D) NPRA immunostaining in mouse DRG (upper row) and dorsal spinal cord (lower row) was performed with antibodies from LifeSpan BioSciences (A, C) and Abcam (B, D). The inset in (C) shows non-specific signals that do not overlap with NeuN staining (green). E-F) BNP immunostaining in DRG using antibodies from LifeSpan Biosciences (E) and Santa Cruz (F). Scale bars: 50 μm.