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Papers of the Week


Papers: 20 Mar 2021 - 26 Mar 2021


Animal Studies, Pharmacology/Drug Development


2021 Mar 21


J Psychopharmacol

Projection-specific dopamine neurons in the ventral tegmental area participated in morphine-induced hyperalgesia and anti-nociceptive tolerance in male mice.

Authors

Sun G-L, Song Z-J, Peng X-H, Chen P-P, Song Y, Qin X, Hua R, Zhang Y-M
J Psychopharmacol. 2021 Mar 21:269881120985183.
PMID: 33749357.

Abstract

Long-term morphine use is associated with serious side effects, such as morphine-induced hyperalgesia and analgesic tolerance. Previous investigations have documented the association between dopamine (DA) neurons in the ventral tegmental area (VTA) and pain. However, whether VTA DA neurons are implicated in morphine-induced hyperalgesia and analgesic tolerance remains elusive.