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Blood transcriptomic biomarkers in adult primary care patients with major depressive disorder undergoing cognitive behavioral therapy

Authors
Redei, E. E.Andrus, B. M.Kwasny, M. J.Seok, J.Cai, X.Ho, J.Mohr, D. C.
Issue Date
9월-2014
Publisher
NATURE PUBLISHING GROUP
Citation
TRANSLATIONAL PSYCHIATRY, v.4
Indexed
SCIE
SCOPUS
Journal Title
TRANSLATIONAL PSYCHIATRY
Volume
4
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/97475
DOI
10.1038/tp.2014.66
ISSN
2158-3188
Abstract
An objective, laboratory-based diagnostic tool could increase the diagnostic accuracy of major depressive disorders (MDDs), identify factors that characterize patients and promote individualized therapy. The goal of this study was to assess a blood-based biomarker panel, which showed promise in adolescents with MDD, in adult primary care patients with MDD and age-, gender-and race-matched nondepressed (ND) controls. Patients with MDD received cognitive behavioral therapy (CBT) and clinical assessment using self-reported depression with the Patient Health Questionnaire-9 (PHQ-9). The measures, including blood RNA collection, were obtained before and after 18 weeks of CBT. Blood transcript levels of nine markers of ADCY3, DGKA, FAM46A, IGSF4A/CADM1, KIAA1539, MARCKS, PSME1, RAPH1 and TLR7, differed significantly between participants with MDD (N = 32) and ND controls (N = 32) at baseline (q < 0.05). Abundance of the DGKA, KIAA1539 and RAPH1 transcripts remained significantly different between subjects with MDD and ND controls even after post-CBT remission (defined as PHQ-9 <5). The ROC area under the curve for these transcripts demonstrated high discriminative ability between MDD and ND participants, regardless of their current clinical status. Before CBT, significant co-expression network of specific transcripts existed in MDD subjects who subsequently remitted in response to CBT, but not in those who remained depressed. Thus, blood levels of different transcript panels may identify the depressed from the nondepressed among primary care patients, during a depressive episode or in remission, or follow and predict response to CBT in depressed individuals.
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