Abstract
Progressive disability in schizophrenia has been considered to be associated with onset-age. The objective of this study was to evaluate age onset-related degeneration in rCBF in patients with schizophrenia. We evaluated characteristic changes in brain perfusion by age, gender, medication and clinical symptoms in medicated patients with early-onset (EOS: developed at younger than 40 years old: n = 44) and late-onset (LOS: developed at older than 40 years old: n = 19) schizophrenia and control subjects matched for age and gender (n = 37) using statistical parametric mapping (SPM8) applied to 99mTc-ECD SPECT. We performed SPECT with 99mTc-ECD on the brains of subjects. A voxel-by-voxel group analysis was performed using SPM 8 and ANOVA. rCBF in EOS was found to be reduced in the precentral and inferior frontal gyri; on the other hand, rCBF was reduced in the bilateral postcentral gyrus in LOS. This study revealed a significant difference in brain perfusion between EOS and LOS. The present study might suggest that the characteristic changes in rCBF are related to onset-age in schizophrenia.
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More From: European Archives of Psychiatry and Clinical Neuroscience
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