Brain Reward Circuits in Morphine Addiction.

Article Details


Kim J, Ham S, Hong H, Moon C, Im HI

Brain Reward Circuits in Morphine Addiction.

Mol Cells. 2016 Sep;39(9):645-53. doi: 10.14348/molcells.2016.0137. Epub 2016 Aug 9.

PubMed ID
27506251 [ View in PubMed

Morphine is the most potent analgesic for chronic pain, but its clinical use has been limited by the opiate's innate tendency to produce tolerance, severe withdrawal symptoms and rewarding properties with a high risk of relapse. To understand the addictive properties of morphine, past studies have focused on relevant molecular and cellular changes in the brain, highlighting the functional roles of reward-related brain regions. Given the accumulated findings, a recent, emerging trend in morphine research is that of examining the dynamics of neuronal interactions in brain reward circuits under the influence of morphine action. In this review, we highlight recent findings on the roles of several reward circuits involved in morphine addiction based on pharmacological, molecular and physiological evidences.

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