Spared nerve injury (SNI) up-regulates TNFR1 and TNFR2 in the red nucleus (RN).
The up-regulation of TNFR2 in the RN of rats with SNI is earlier than that of TNFR1.
TNFR1 in the RN plays crucial role in the early and later stages of neuropathic pain.
TNFR2 in the RN plays an important role in the early stage of neuropathic pain.