Psychopharmacology

, Volume 222, Issue 2, pp 303–311

Effects of acupuncture on stress-induced relapse to cocaine-seeking in rats

  • Seong Shoon Yoon
  • Eun Jin Yang
  • Bong Hyo Lee
  • Eun Young Jang
  • Hee Young Kim
  • Sun-Mi Choi
  • Scott C. Steffensen
  • Chae Ha Yang
Original Investigation

DOI: 10.1007/s00213-012-2683-3

Cite this article as:
Yoon, S.S., Yang, E.J., Lee, B.H. et al. Psychopharmacology (2012) 222: 303. doi:10.1007/s00213-012-2683-3

Abstract

Rationale

Cocaine addiction is associated with high rates of relapse, and stress has been identified as a major risk factor. We have previously demonstrated that acupuncture reduces drug self-administration and dopamine release in the nucleus accumbens (NAc), a brain structure implicated in stress-induced reinstatement of drug-seeking behavior.

Objective

This study was conducted to investigate the effects of acupuncture on footshock-induced reinstatement of cocaine-seeking and the expression of c-Fos and the transcription factor cAMP response element-binding protein (CREB) in the NAc, used as markers of neuronal activation in conditions of stress-induced reinstatement to cocaine.

Methods

Male Sprague–Dawley rats were trained to self-administer cocaine (1.0 mg/kg) for 14 days, followed by extinction and then footshock stress. Acupuncture was applied at bilateral Shenmen (HT7) points for 1 min after footshock stress.

Results and conclusions

Acute footshock stress reinstated cocaine-seeking behavior and enhanced c-Fos expression and phosphorylated CREB (pCREB) activation in the NAc shell in cocaine pre-exposed rats. On the other hand, acupuncture at HT7, but not at control point (LI5), markedly reduced reinstatement of cocaine-seeking (86.5 % inhibition vs. control value), c-Fos expression (81.7% inhibition), and pCREB activation (79.3% inhibition) in the NAc shell. These results suggest that acupuncture attenuates stress-induced relapse by regulating neuronal activation in the NAc shell.

Keywords

Cocaine reinstatement Footshock Stress Acupuncture Nucleus accumbens c-Fos pCREB 

Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Seong Shoon Yoon
    • 1
  • Eun Jin Yang
    • 2
  • Bong Hyo Lee
    • 1
  • Eun Young Jang
    • 1
  • Hee Young Kim
    • 1
  • Sun-Mi Choi
    • 2
  • Scott C. Steffensen
    • 3
  • Chae Ha Yang
    • 1
  1. 1.College of Oriental MedicineDaegu Haany UniversityDaeguSouth Korea
  2. 2.Korea Institute of Oriental MedicineDaejeonSouth Korea
  3. 3.Department of Psychology (1050 SWKT)Brigham Young UniversityProvoUSA

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