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Ruth Gross-Isseroff, DSc; Malka Israeli, BSc; Anat Biegon, PhD

Arch Gen Psychiatry. 1989;46(3):237-241.

Abstract
• In vitro quantitative autoradiography of high-affinity tritiated imipramine binding sites was performed on brains of 12 suicide victims and 12 matched controls. Region-specific differences in imipramine binding were found between the two groups. Thus, the pyramidal and molecular layers of the cornu ammoni hippocampal fields and the hilus of the dentate gyrus exhibited 80%, 60%, and 90% increases in binding in the suicide group, respectively. The postcentral cortical gyrus, insular cortex, and claustrum had 45%, 28%, and 75% decreases in binding in the suicide group, respectively. No difference in imipramine binding was observed in prefrontal cortical regions, in the basal ganglia, and in mesencephalic nuclei. No sex and postmortem delay effects on imipramine binding were found. lmipramine binding was positively correlated with age, the effect of age being most pronounced in portions of the basal ganglia and temporal cortex.

Author Affiliations
From the Department of Neurobiology, Weizmann Institute of Science, Rehovot, Israel.

Footnotes
Accepted for publication Feb 25, 1988.

Reprint requests to Department of Neurobiology, Brain and Behavior Group, Perlman Bldg, Weizmann Institute of Science, 76100 Rehovot, Israel (Dr Gross-Isseroff).

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