Figure 1From: Delayed sympathetic dependence in the spared nerve injury (SNI) model of neuropathic pain Tyrosine Hydroxylase (TH) immunoreactivity in transverse sections of sciatic nerve (proximal to SNI injury). Representative microphotography of TH-IR in vehicle treated control animals (right panels), while the signal was abolished in animals injected postnatally with guanethidine (sympathectomized group, left panels).Back to article page