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Apostolova, I; Block, S; Buchert, R; Osen, B; Conradi, M; Tabrizian, S; Gensichen, S; Schröder-Hartwig, K; Fricker, S; Rufer, M; Weiss, A; Hand, I; Clausen, M; Obrocki, J (2010). Effects of behavioral therapy or pharmacotherapy on brain glucose metabolism in subjects with obsessive-compulsive disorder as assessed by brain FDG PET. Psychiatry Research, 184(2):105-116.

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Abstract

This prospective study investigated the effect of pharmacotherapy (PT) and cognitive behavioral therapy (CBT) on cerebral glucose metabolism in adults with obsessive-compulsive disorder (OCD). Dynamic positron emission tomography (PET) of the brain with F-18-fluorodeoxyglucose (FDG) was performed before and after treatment in 16 subjects diagnosed for OCD for at least 2 years (PT: n=7). Pre-to-post-treatment change of scaled local metabolic rate of glucose (SLMRGlc) was assessed separately in therapy responders and non-responders. Correlation was tested between SLMRGlc change and change of OCD, depression, or anxiety symptoms. SLMRGlc increased in the right caudate after successful therapy. The increase tended to correlate with the improvement of OCD symptom severity. The finding of increased local caudate activity after successful therapy is in contrast to most previous studies. Possible explanations include effects of therapy on concomitant depression symptoms and/or the large proportion of early-onset OCD in the present sample.

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Psychiatry and Psychotherapy
DDC:610 Medicine & health
Language:English
Date:2010
Deposited On:07 Jan 2011 16:10
Last Modified:27 Nov 2013 19:20
Publisher:Elsevier
ISSN:0165-1781
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:10.1016/j.pscychresns.2010.08.012
PubMed ID:20947317
Citations:Web of Science®. Times Cited: 7
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