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    Nucl Med Biol. 2008 Jan;35(1):53-9.

    Synthesis, radiolabeling and baboon SPECT imaging of 2beta-carbomethoxy-3beta-(3'-[(123)I]iodophenyl)tropane ([(123)I]YP256) as a serotonin transporter radiotracer.

    Bois F, Baldwin RM, Amici L, Al-Tikriti MS, Kula N, Baldessarini R, Innis RB, Staley JK, Tamagnan GD.

    Source

    Yale University, School of Medicine, VA Connecticut HCS (116A2), West Haven, CT 06516, USA.

    Abstract

    To develop a potential SPECT probe to evaluate the integrity of the serotoninergic system (5-HTT) whose dysfunction is linked to several disease conditions such as Parkinson's disease, Alzheimer's disease and depression, we report the synthesis, radiolabeling and in vivo baboon imaging of 2beta-carbomethoxy-3beta-(3'-[(123)I]iodophenyl) tropane (YP256, 6). The radiolabeling was performed by iododestannylation using sodium [(123)I]iodide and peracetic acid. Although the ligand displayed high selectivity for 5-HTT over dopamine transporter in vitro, SPECT imaging in baboons did not reveal selective 5-HTT accumulation in brain in vivo.

    PMID:
    18158943
    [PubMed - indexed for MEDLINE]
    PMCID: PMC2276982
    Free PMC Article

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