Abstract
The role of iron in schizophrenia (SC) has aroused attention because of its modulatory effect on the dopamine receptor and its role as a cofactor for tyrosine hydroxylase. In addition, several postmortem studies suggest that increased mineralization (especially iron) of the basal ganglia is a possible clinicopathological correlate of schizophrenia. In order to quantitate the in vivo mineral content in the basal ganglia of patients with SC, a protocol was developed to analyze CT scans films with a LOATS computer analysis system. A total of 725 consecutive CT scans (275 SC, 450 nonSC) from a psychiatric population were reviewed. Eighteen scans (2.3%) revealed basal ganglia mineralization of which 7 cases carried a diagnosis of SC and 11 had other psychiatric disorders. All subjects had received neuroleptics, and 8 of the 11 patients in the nonschizophrenic group were demented. Both the SC and nonSC patients exhibited a prevalence (2.5%) of basal ganglia mineralization similar to that found in a postmortem series of the general population.
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