Journal
PSYCHIATRY RESEARCH-NEUROIMAGING
Volume 184, Issue 3, Pages 157-161Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.pscychresns.2010.09.004
Keywords
Serotonin transporter; Dopamine transporter; Single photon emission computed tomography; Euthymic state; Major depression
Categories
Funding
- National Science Council of Taiwan [NSC 95-2314-B-006-115-MY2, NSC 97-2314-B-006-006-MY3]
- Atomic Energy Council [NSC 97-NU-7-006-001]
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Serotonin transporter (SERT) and dopamine transporter (DAT) levels differ in patients with major depression who are in a depressed state in comparison with healthy controls. The aim of this study was to examine the distribution volume ratios (DVRs) of SERT and DAT in drug-free and euthymic patients with a history of major depression. Subjects comprised 13 patients with a history of major depression and 26 sex- and age-matched healthy controls. The euthymic state of depression was defined as a score of 7 or less on the Hamilton Depression Rating Scale. The DVRs of SERT and DAT were approximated using SPEC, with [I-123] 2-((2-((dimethylamino)methyl)phenyl)thio)-5-iodophenylamine (ADAM) and [Tc-99m] TRODAT-1 as the ligands, respectively. There were no significant differences in the DVRs of SERT or DAT between healthy subjects and euthymic patients with a history of major depression; hence, the SERT and DAT DVRs may not therefore be trait markers for patients with major depression, which helps us to understand more about the pathophysiology of depression. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
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