Title : Effects of nicotine in the dopaminergic system of mice lacking the alpha4 subunit of neuronal nicotinic acetylcholine receptors.

Pub. Date : 2003 Apr

PMID : 12713636






7 Functional Relationships(s)
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1 Here we investigate the role of the alpha4 nicotinic acetylcholine receptor (nAChR) subunit in mediating the effects of nicotine in the mesolimbic dopamine system in mice lacking the alpha4 subunit. Nicotine immunoglobulin (CD79A) binding protein 1 Mus musculus
2 Here we investigate the role of the alpha4 nicotinic acetylcholine receptor (nAChR) subunit in mediating the effects of nicotine in the mesolimbic dopamine system in mice lacking the alpha4 subunit. Dopamine immunoglobulin (CD79A) binding protein 1 Mus musculus
3 Non-alpha4 subunit-containing nAChRs are located on dopaminergic neurons, are functional and respond to nicotine as demonstrated by patch clamp recordings. Nicotine immunoglobulin (CD79A) binding protein 1 Mus musculus
4 Despite the fact that both wild-type and alpha4 null mutant mice show a similar increase in dopamine release in response to intrastriatal KCl perfusion, a nicotine-elicited increase in dopamine levels is not observed in mutant mice. Dopamine immunoglobulin (CD79A) binding protein 1 Mus musculus
5 Despite the fact that both wild-type and alpha4 null mutant mice show a similar increase in dopamine release in response to intrastriatal KCl perfusion, a nicotine-elicited increase in dopamine levels is not observed in mutant mice. Potassium Chloride immunoglobulin (CD79A) binding protein 1 Mus musculus
6 Despite the fact that both wild-type and alpha4 null mutant mice show a similar increase in dopamine release in response to intrastriatal KCl perfusion, a nicotine-elicited increase in dopamine levels is not observed in mutant mice. Nicotine immunoglobulin (CD79A) binding protein 1 Mus musculus
7 Our results indicate that alpha4-containing nAChRs exert a tonic control on striatal basal dopamine release, which is mediated by a heterogeneous population of nAChRs. Dopamine immunoglobulin (CD79A) binding protein 1 Mus musculus