NTS and Alzheimer disease: Neurotensin plays multiple effects in central nervous system and is involved in the pathophysiology of several central nervous system disorders, including schizophrenia (Garver et al., 1991; Kinkead and Nemeroff, 2004), Parkinson's disease (Bissette et al., 1985; Fernandez et al., 1994), as well as Alzheimer's disease (Constantinidis et al., 1983; Struble et al., 1987; Gahete et al., 2010; Xiao et al., 2014).