Interleukin-6 and interleukin-6 receptor expression, localization, and involvement in pain-sensing neuron activation in a mouse intervertebral disc injury model. - Sainoh T; Orita S; Miyagi M; Sakuma Y; Yamauchi K; Suzuki M; Kubota G; Oikawa Y; Inage K; Sato J; Fujimoto K; Shiga Y; et al. (Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 2015)