Researchers discover how opsin 3, a light-sensitive brain protein, regulates food consumption in mice

ScienceDaily
Feb 14, 2025, 10:50 pm34 pts
Scientists discovered years ago that the hypothalamus -- which helps to manage body temperature, hunger, sex drive, sleep and more -- includes neurons that express the protein opsin 3 (OPN3). Far less clear, however, was what this light-sensing protein does so deep inside the brain. A study now suggests that…

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