NTRK2 and injury: The cellular actions of BDNF were mediated through tyrosine kinase receptor B (TrkB) and by p75NTR (p75 neurotrophin receptor), a member of the tumor necrosis factor receptor superfamily.7 BDNF has been associated with neuroprotection in ischemic brain injury so, it has prognostic and diagnostic prediction of brain injury.8,9