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Dopamine regulates pain perception in some areas of the central nervous system. Previously, we have confirmed that dopamine potentiated the electric activities of the evoked discharges of pain-excited neurons (PENs) and inhibited those of pain-inhibited neurons (PINs) in the parafascicular nucleus (Pfn) of normal rats. The mechanism of action of dopamine on pain-related neurons in the Pfn of morphine-dependent...
Dopamine (DA) regulates pain perception in the central nervous system (CNS). However, the mechanism of the action of DA in pain-related neurons of the parafascicular nucleus (Pf) is not clear. The present study aimed to determine the effect of DA and its receptor antagonist, droperidol on the pain-evoked responses of the pain-excited neurons (PEN) and pain-inhibited neurons (PIN) in the Pf of rats...
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