Researchers have found that enkephalin receptors are upregulated in cocaine addicts when compared to non-users.It is likely that the action of cocaine
A)increases enkephalin in the brain.
B)decreases enkephalin in the brain.
C)increases enkephalin's affinity for its receptor.
D)is an agonist to the enkephalin receptor.

Question

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The Answer of Researchers have found that enkephalin receptors are upregulated in cocaine addicts when compared to non-users.It is likely that the action of cocaine
A)increases enkephalin in the brain.
B)decreases enkephalin in the brain.
C)increases enkephalin's affinity for its receptor.
D)is an agonist to the enkephalin receptor.

Researchers Have Found That Enkephalin Receptors Are Upregulated in Cocaine