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[Molecular mechanism for feeding and food preference regulation].

Feeding behavior is regulated by homeostatic and hedonic mechanisms. NPY/AgRP neurons in the arcuate hypothalamus are involved in the homeostatic regulation, and dopaminergic neurons in the ventral tegmental area regulating the nucleus of accumbens are involved in the hedonic regulation, respectively. Food preference also appears to be regulated by both homeostatic and hedonic mechanisms. However, molecular mechanism for food preference regulation remains elusive and further studies are necessary.