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- n. One of a pair of pentapeptides, (Tyr-Gly-Gly-Phe-Met) occurring naturally in the brain, that affects pain perception.
Sorry, no etymologies found.
We have proposed from these experiments that alcohol increases release not by a direct action on the dopamine neuron but through the release of an endogenous delta opioid agonist, possibly met-enkephalin, to modulate dopamine activity.
The monoclonal antibody used to visualize ENK does not distinguish between met-enkephalin and leu-enkephalin