Gabapentin-induced drug-seeking-like behavior: a potential role for the dopaminergic system.

Abstract:

:Drugs of abuse represent a growing public health crisis. Accumulating evidence indicates that gabapentin (GBP), a prescription drug, is prone to misuse, abuse, withdrawal, and dependence. Commonly, drugs of abuse modulate the dopaminergic system to induce addiction. In this study, we used the conditioned place preference (CPP) model to investigate the involvement of the dopamine 1 (D1) receptor on the reward and reinforcement behavior of GBP. Under a CPP paradigm, male BALB/c mice were intraperitoneally injected either saline or 100, 200, or 300 mg/kg of GBP and confined to the injection-paired chamber for 30 min. In the pre-conditioning phase, mice were conditioned for 3 days, and baseline data were collected. In the conditioning phase, mice were given once-daily alternating injections of either GBP or saline for 8 days and subsequently assessed in a post-conditioning test. Injections of 300 mg/kg of GBP significantly increased the time spent in the drug-paired chamber compared to the saline-paired chamber. However, lower doses of GBP (100 and 200 mg/kg) showed no effect. Pre-treatment with SKF-83566, a D1 receptor antagonist, attenuated GBP-induced CPP. Thus, for the first time, we show that GBP can induce CPP through a dopaminergic-dependent mechanism.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Althobaiti YS,Alghorabi A,Alshehri FS,Baothman B,Almalki AH,Alsaab HO,Alsanie W,Gaber A,Almalki H,Alghamdi AS,Basfer A,Althobaiti S,Hardy AMG,Shah ZA

doi

10.1038/s41598-020-67318-6

subject

Has Abstract

pub_date

2020-06-26 00:00:00

pages

10445

issue

1

issn

2045-2322

pii

10.1038/s41598-020-67318-6

journal_volume

10

pub_type

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