Abstract
We investigated the striatal and extrastriatal DAT availability (SPM8) by [(123)I]FP-CIT-SPECT in 15 PD patients with depression and 35 PD patients without depression. A cluster with significant (p < 0.05) lower tracer binding in PD with depression was found in left cingulate cortex, persistent after correction for age, disease severity and duration, and inversely correlated with depression scores (r -0.336, p < 0.05). Our data indicate a significant association between PD depression and cingulate dopaminergic denervation supporting the dopaminergic hypothesis of PD depression.
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