Extracellular Enkephalin Levels Surged When Rats Began To Eat M&Ms (IMAGE)

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Extracellular Enkephalin Levels Surged When Rats Began To Eat M&Ms

Caption

Extracellular enkephalin levels surged when rats began to eat milk chocolate M&Ms. Onset of eating coincided with a robust increase in extracellular enkephalin (met and leu), which remained sustained during eating and gradually tapered off as eating declined. The magnitude of the enkephalin increase in individuals correlated with their latency to eat their first M&M: higher enkephalin increase for the fastest eaters.

Credit

Current Biology, DiFeliceantonio et al.: "Enkephalin surges in dorsal neostriatum as a signal to eat."

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