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POMC Neurons and the Transcriptional Regulation of Motivated Exercise.

Hypothalamic pro-opiomelanocortin (POMC) neurons are key sensory neurons for energy balance. The basic helix-loop helix transcription factor, NHLH2 is expressed in POMC neurons, and Nhlh2 knockout mice show adult-onset obesity with low exercise behavior. Evidence is presented to explore the hypothesis that NHLH2 transcriptional activity within POMC neurons is crucial for maintaining motivated spontaneous activity and enforced exercise.