Varenicline-mediated cholinergic activation through α4β2 nAChR inhibits microglial neuroinflammation and alleviates neuropathic pain and depression following spinal cord injury. - Cheng L; Lai S; Wang Y; Zhu X; Song S; Lu DZ; Yang Y; Xu LL; Cai B; Wang J; Zeng H (Journal of translational medicine, 2026)