alexa Novel Therapy for Nicotine Addiction in Alcohol Dependent Rats
ISSN: 2155-6105

Journal of Addiction Research & Therapy
Open Access

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Research Article

Novel Therapy for Nicotine Addiction in Alcohol Dependent Rats

Mona Boules*, Bethany Stennett, Naveen Muhktar, Zhimin Li, Shui Cai and Elliott Richelson

Neuropsychopharmacology Laboratory, Mayo Foundation for Medical Education and Research, USA

*Corresponding Author:
Mona Boules
Mayo Clinic, 4500 San Pablo Rd
Jacksonville, FL 32224, USA
Tel: (904)953-7136
Fax: (904)953-7117
E-mail: [email protected]

Received date: August 05, 2013; Accepted date: September 18, 2013; Published date: September 28, 2013

Citation: Boules M, Stennett B, Muhktar N, Li Z, Cai S, et al. (2013) Novel Therapy for Nicotine Addiction in Alcohol Dependent Rats. J Addict Res Ther 4:161. doi:10.4172/2155-6105.1000161

Copyright: © 2013 Boules M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Background: NT69L, a non-selective neurotensin agonist, provides a potential novel therapy for nicotine addiction in alcoholics by interacting with the common neurotransmitter circuits supporting the rewarding process for both nicotine and alcohol. Considering the behavioral effects of NT69L in attenuating nicotine self-administration in rats and alcohol consumption in mice, this study was designed to assess the effects of NT69L on nicotine self-administration in alcoholdependent rats.

Methods: Wistar rats pre-exposed to alcohol vapor or air were allowed to self-infuse nicotine (0.03 mg/kg/infusion) or saline. When the rats reached a stable level of responding, the effect of pretreatment with NT69L (1 mg/kg i.p.) on the reinforcing effect of nicotine was determined. The effect of NT69L on withdrawal signs caused by the discontinuation of nicotine and alcohol were recorded. Additionally, the effect of NT69L on dopamine and glutamate in the nucleus accumbens of rats that were co-injected with nicotine (0.5 mg/kg s.c.) and alcohol (1 g/kg i.p.) was determined with the use of in vivo microdialysis with HPLC and capillary electrophoresis.

Results: Animals self-infused nicotine at a significantly (P<0.05) higher rate compared to saline in both air and alcohol vapor exposed groups. Acute treatment with a single injection of NT69L significantly (P<0.05) reduced nicotine self-infusion in both the alcohol vapor and the air exposed groups for 5 days post-injection. NT69L also reduced the withdrawal signs associated with the discontinuation of alcohol and nicotine administration. Additionally, NT69L attenuated the alcohol- and nicotine-induced increase in dopamine and glutamate in the nucleus accumbens.

Conclusion: NT agonists may represent a potential novel therapy to treat alcohol and nicotine addiction simultaneously by modulating dopamine and glutamate.


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