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PET imaging of dopamine transporter and drug craving during methadone maintenance treatment and after prolonged abstinence in heroin users.

PET imaging of dopamine transporter and drug craving during methadone maintenance treatment and after prolonged abstinence in heroin users. Research Abstract Details 

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  • PET imaging of dopamine transporter and drug craving during methadone maintenance treatment and after prolonged abstinence in heroin users. Abstract Text:

    jie shiJie Shi,li-yan zhaoLi-Yan Zhao,marc l copersinoMarc L Copersino,yu-xia fangYu-Xia Fang,yingmao chenYingmao Chen,jiahe tianJiahe Tian,yanping dengYanping Deng,yinliang shuaiYinliang Shuai,jun jinJun Jin,lin luLin Lu,

    It has been documented that methadone maintenance treatment is effective in reducing drug craving and relevant risk behaviors in heroin users. However, it is not understood whether methadone maintenance treatment impairs the dopamine transporter in the striatum. To establish whether chronic opiate use might impair brain dopamine neurons in humans, we assessed dopamine transporter (DAT) uptake function in the striatum (caudate and putamen), and analyzed the correlation between DAT in the striatum and heroin craving and subjective anxiety in former heroin users with prolonged abstinence and in patients receiving methadone maintenance treatment. Binding of [(11)C]-2beta-carbomethoxy-3beta-aryltropane ([(11)C] CFT) as a brain dopamine transporter ligand was measured with positron emission tomography (PET) in eleven former heroin users with prolonged abstinence, ten patients receiving methadone maintenance treatment and ten healthy control subjects. Heroin craving and subjective anxiety in prolonged abstinence and methadone maintenance treatment groups were assessed and the correlations between DAT of striatum and heroin craving or subjective anxiety were determined. In comparison with healthy control subjects, methadone maintenance treatment subjects had lower DAT uptake function in the bilateral caudate and putamen and prolonged abstinence subjects showed significantly lower DAT uptake function in the bilateral caudate. Moreover, in comparison to the prolonged abstinence subjects, the methadone maintenance treatment subjects showed significant decreases of DAT uptake in the bilateral putamen. DAT uptake function in bilateral striatum was not associated with heroin craving in prolonged abstinence or in methadone maintenance treatment subjects; however, DAT uptake function in the bilateral caudate was significantly correlated with subjective anxiety in methadone maintenance treatment subjects. Our findings suggest that chronic opioid use induces long-lasting striatum dopamine neuron impairment, and prolonged withdrawal from opioids can benefit the recovery of impaired dopamine neurons in the brain.

    PET imaging of dopamine transporter and drug craving during methadone maintenance treatment and after prolonged abstinence in heroin users. Publishing Authors By Initials

    j shiJ Shi,ly zhaoLY Zhao,ml copersinoML Copersino,yx fangYX Fang,y chenY Chen,j tianJ Tian,y dengY Deng,y shuaiY Shuai,j jinJ Jin,l luL Lu,

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    PET imaging of dopamine transporter and drug craving during methadone maintenance treatment and after prolonged abstinence in heroin users. Journal Published:

    PUBLICATION TYPE: Journal Article

    Journal: European journal of pharmacology

    VOLUME: 579

    Page Numbers: 160-6

    Journal Abbreviation: Eur. J. Pharmacol.

    ISSN: 0014-2999

    DAY: 10

    MONTH: 10

    YEAR: 2007

    PET imaging of dopamine transporter and drug craving during methadone maintenance treatment and after prolonged abstinence in heroin users. Information

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    LANGUAGE: eng

    NlmUniqueID: 1254354

    PET imaging of dopamine transporter and drug craving during methadone maintenance treatment and after prolonged abstinence in heroin users. Keywords Mesh Terms:

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    Grant and Affiliation Information for PET imaging of dopamine transporter and drug craving during methadone maintenance treatment and after prolonged abstinence in heroin users.

    AFFILIATION: National Institute on Drug Dependence, Peking University, Beijing 100083, China.

    Country: Netherlands

    Netherlands Research PublicationNetherlands Research Publication

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    MEDLINETA: Eur J Pharmacol

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