Regional 133Xenon cerebral blood flow and cerebral 99mTc-HMPAO uptake in patients with obsessive-compulsive disorder before and during treatment

Robert T. Rubin, Jambur Ananth, Javier Villanueva-Meyer, Peter G. Trajmar, Ismael Mena

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

We previously reported increased regional cerebral cortical uptake and decreased caudate nucleus uptake of 99mTc-HMPAO in patients with obsessive-compulsive disorder (OCD) before treatment compared to matched normal controls. In the present study, we determined whether or not these changes persisted during treatment. Single-photon emission computed tomography was used to measure regional cerebral blood flow (rCBF) by 133Xe inhalation and regional cerebral uptake of 99mTc-HMPAO in eight adult male OCD patients before and during treatment with clomipramine, and in eight age-matched normal male controls. With 133Xe, there were no significant differences in rCBF between the patients with OCD and their matched controls, and no significant differences in rCBF in the patients before and during treatment. Significantly increased HMPAO uptake in the orbital frontal cortex, posterofrontal cortex, and high dorsal parietal cortex bilaterally occurred in the OCD patients before treatment compared to their matched controls, and there were significant reductions of HMPAO uptake, into the normal range, in all these areas in the patients during treatment. Significantly reduced HMPAO uptake in the caudate nucleus bilaterally occurred in the patients before treatment compared to their matched controls, and these reductions persisted during treatment. This study provides additional support for the involvement of both the orbital frontal cortex and the caudate nuclei in the pathophysiology of OCD.

Original languageEnglish (US)
Pages (from-to)429-437
Number of pages9
JournalBiological Psychiatry
Volume38
Issue number7
DOIs
StatePublished - Oct 1 1995
Externally publishedYes

Fingerprint

Cerebrovascular Circulation
Technetium Tc 99m Exametazime
Obsessive-Compulsive Disorder
Caudate Nucleus
Regional Blood Flow
Frontal Lobe
Therapeutics
Prefrontal Cortex
Clomipramine
Parietal Lobe
Single-Photon Emission-Computed Tomography
Inhalation
Reference Values

Keywords

  • Cerebral blood flow
  • clomipramine
  • dopamine
  • obsessive-compulsive disorder
  • serotonin
  • SPECT

ASJC Scopus subject areas

  • Biological Psychiatry

Cite this

Regional 133Xenon cerebral blood flow and cerebral 99mTc-HMPAO uptake in patients with obsessive-compulsive disorder before and during treatment. / Rubin, Robert T.; Ananth, Jambur; Villanueva-Meyer, Javier; Trajmar, Peter G.; Mena, Ismael.

In: Biological Psychiatry, Vol. 38, No. 7, 01.10.1995, p. 429-437.

Research output: Contribution to journalArticle

Rubin, Robert T. ; Ananth, Jambur ; Villanueva-Meyer, Javier ; Trajmar, Peter G. ; Mena, Ismael. / Regional 133Xenon cerebral blood flow and cerebral 99mTc-HMPAO uptake in patients with obsessive-compulsive disorder before and during treatment. In: Biological Psychiatry. 1995 ; Vol. 38, No. 7. pp. 429-437.
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