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Selegiline remarkably improved stage 5 treatment-resistant major depressive disorder: a case report

Authors Kitaichi Y, Inoue T , Mitsui N, Nakagawa S, Kameyama R, Hayashishita Y, Shiga T, Kusumi I , Koyama T

Received 31 May 2013

Accepted for publication 22 July 2013

Published 17 October 2013 Volume 2013:9 Pages 1591—1594


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 4

Yuji Kitaichi,1 Takeshi Inoue,1 Nobuyuki Mitsui,1 Shin Nakagawa,1 Rie Kameyama,1 Yoshiyuki Hayashishita,1 Tohru Shiga,2 Ichiro Kusumi,1 Tsukasa Koyama1

1Department of Psychiatry, Graduate School of Medicine, Hokkaido University, Sapporo, Japan; 2Department of Nuclear Medicine, Graduate School of Medicine, Hokkaido University, Sapporo, Japan

Abstract: We report a case in which selegiline, an irreversible monoamine oxidase B (MAO-B) inhibitor, greatly improved depressive symptoms in an adult with stage 5 treatment-resistant major depressive disorder. Four antidepressants and four augmentation therapies had previously been ineffective or intolerable, and electroconvulsive therapy had only a temporary effect. After 20 weeks of treatment with selegiline (10 mg/day), the patient's score on the 17-item Hamilton Depression Rating Scale (HDRS) had decreased from 19 to 4 points. [18F]-Fluorodeoxyglucose positron emission tomography (FDG-PET) showed increased glucose metabolism in the bilateral basal ganglia after initiating selegiline treatment; blood dopamine levels were also increased after selegiline treatment. These results raise the possibility that selegiline enhances dopaminergic neural transmission in treatment-resistant depression, thus leading to an improvement in depressive symptoms.

Keywords: treatment-resistant depression, FDG-PET, glucose metabolism, basal ganglia

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