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  • Title: Inverse relationship between serotonin 5-HT(1A) receptor binding and anxiety: a [(11)C]WAY-100635 PET investigation in healthy volunteers.
    Author: Tauscher J, Bagby RM, Javanmard M, Christensen BK, Kasper S, Kapur S.
    Journal: Am J Psychiatry; 2001 Aug; 158(8):1326-8. PubMed ID: 11481173.
    Abstract:
    OBJECTIVE: The authors investigated the relationship between anxiety--a facet of the Revised NEO Personality Inventory dimension of neuroticism--and serotonin 5-HT(1A) receptor binding potential. METHOD: Positron emission tomography with [(11)C]WAY-100635 was used to estimate regional 5-HT(1A) binding potential in 19 healthy volunteers who completed the Revised NEO Personality Inventory. Correlation coefficients were calculated to determine the degree of association between 5-HT(1A) binding potential and personality inventory measures. RESULTS: There was a significant negative correlation between 5-HT(1A) binding potential and anxiety in four regions: the dorsolateral prefrontal cortex, anterior cingulate cortex, parietal cortex, and occipital cortex. CONCLUSIONS: The inverse relationship between 5-HT(1A) receptor binding potential and anxiety is consistent with 1) animal models that have shown higher anxiety in mice lacking 5-HT(1A) receptors and 2) clinical trial data that have demonstrated antianxiety properties of partial 5-HT(1A) agonists.
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