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Chae, Y. et al.

Acupuncture attenuates repeated nicotine-induced behavioral sensitization and c-Fos expression in the nucleus accumbens and striatum of the rat.

Repeated injections of nicotine can produce behavioral sensitization, as evidenced by an enhanced locomotor response to a subsequent injection of the drug. Behavioral sensitization has been suggested as a model for studying drug addiction. Acupuncture as a therapeutic intervention is widely used for treatment for many functional disorders, such as substance abuse and mental dysfunction. We examined the effect of acupuncture on nicotine-induced behavioral locomotor activity and c-fos expression in the nucleus accumbens and striatum utilizing the immunocytochemical detection of the Fos protein. The rats were given repeated daily nicotine injections (0.4 mg/kg s.c., twice daily for 7 days) followed by one challenging injection on the 4th day after the last daily injection. Acupuncture at zusanli (ST36), but not control, significantly attenuated expected increase in nicotine-induced locomotor activity and Fos-like-immunoreactivity in the nucleus accumebns and striatum to subsequent nicotine challenge. These findings suggest that acupuncture has a therapeutic effect on nicotine addiction, possibly by modulating postsynaptic neuronal activity in the nucleus accumbens and the striatum.[1]

References

Acupuncture attenuates repeated nicotine-induced behavioral sensitization and c-Fos expression in the nucleus accumbens and striatum of the rat. Chae, Y., Yang, C.H., Kwon, Y.K., Kim, M.R., Pyun, K.H., Hahm, D.H., Lee, H.J., Shim, I. Neurosci. Lett. (2004) [Pubmed]

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