Title : Implication of endogenous beta-endorphin in the inhibition of the morphine-induced rewarding effect by the direct activation of spinal protein kinase C in mice.

Pub. Date : 2008 Mar 5

PMID : 18262361






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1 Implication of endogenous beta-endorphin in the inhibition of the morphine-induced rewarding effect by the direct activation of spinal protein kinase C in mice. Morphine pro-opiomelanocortin-alpha Mus musculus
2 In the present study, we investigated whether a gene deletion for an endogenous mu-opioid peptide beta-endorphin could affect pain-like behavior and the suppression of the morphine-induced rewarding effect by the direct activation of PKC in the spinal cord. Morphine pro-opiomelanocortin-alpha Mus musculus
3 This suppression of morphine reward was eliminated in mice that lacked beta-endorphin. Morphine pro-opiomelanocortin-alpha Mus musculus
4 These results suggest that the activation of PKC in the spinal cord may play an essential role in the suppression of the morphine-induced rewarding effect in mice with neuropathic pain through the constant release of beta-endorphin. Morphine pro-opiomelanocortin-alpha Mus musculus