Fig. 8

The viral anterograde tracing results demonstrating the distribution relationship between sympathetic and sensory nerves during the progression of TMJ-OA. Representative results, and quantitative analysis of viral anterograde tracing in the trigeminal ganglion (green) and the superior cervical sympathetic ganglion (red). Nucleus were stained with DAPI (blue). SNS means sympathetic nervous system. SN means sensory nerves (scale bars, 50 μm, n = 3). ns means not significant. ****P < 0.000 1 by Student’s t tests