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Brain Circuit Involved in Fentanyl Abuse and Relapse Identified

This shows the outline of a headFentanyl enhances direct pathway medium spiny neurons activity in the striatum. During withdrawal from the opioid, inhibitory signals from direct pathway medium spiny neurons to dopaminergic neurons become enhanced. The enhanced suppression of dopaminergic neurons contributes to the negative emotions associated with fentanyl withdrawal. Inhibiting the direct pathway medium spiny neurons can reduce withdrawal symptoms and associated anxiety behaviors.

from Neuroscience News https://ift.tt/V7e96DW
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