NTS and Alzheimer disease: In Alzheimer's disease patients, the amyloid plaque density in the occipital cortex is negatively associated with the neurotensin-positive neurons in the suprachiasmatic nucleus, i.e., the more plaques, the fewer neurotensin-positive neurons, which suggests the involvement of neurotensin in fractal activity disruption in Alzheimer's disease (Hu et al., 2013).