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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Dopamine transporter and D2-receptor density in late-onset alcoholism.

RATIONALE: Late onset type 1 alcoholism has been suggested to be associated with an underlying dopaminergic defect. Therefore, it is relevant to study both postsynaptic D2-receptor and presynaptic dopamine transporter (DAT) densities among alcoholics. OBJECTIVE: We investigated DAT densities, along with striatal and extrastriatal dopamine D2-receptor densities, in nine nonviolent late-onset male alcoholics, who had no major mental disorder nor antisocial personality disorder (ASPD), and nine healthy controls. METHODS: [123I]PE2I and [123I]epidepride were used in SPECT imaging. RESULTS: DAT occupancy ratios (striatum/cerebellum) were significantly lower among alcoholics than in controls. Extrastriatal D2-receptor occupancy ratios (temporal pole/cerebellum) were not significantly different between the groups. CONCLUSIONS: Striatal presynaptic DAT densities are decreased among type 1 alcoholics, and this finding is not associated with recent alcohol abuse.[1]

References

  1. Dopamine transporter and D2-receptor density in late-onset alcoholism. Repo, E., Kuikka, J.T., Bergström, K.A., Karhu, J., Hiltunen, J., Tiihonen, J. Psychopharmacology (Berl.) (1999) [Pubmed]
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