NPY receptors   Distributions of NPY receptors   Effects of NPY receptors
Y1  hippocampus, amygdala, thalamus, hypothalamus, cerebral cortex  vasoconstriction, regulating feeding behavior, regulating anxiety and depression
Y2  hippocampus, amygdala, thalamus, hypothalamus, cerebral cortex  vasoconstriction, regulating feeding behavior, regulating anxiety and depression, neuroprotective effects
Y4  medial preoptic area, NTS, PVH, area postrema  regulating anxiety and depression
Y5  hippocampus, cingulate cortex, thalamic, hypothalamic nuclei  regulating feeding behavior, neuroprotective effects
Y6  only present in some mammals