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Neuropsychobiology. 1997;35(1):11-5.

GABA uptake sites in frontal cortex from suicide victims and in aging.

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  • 1Department of Psychiatry, UmeĆ„ University, Sweden.


The binding of [3H]nipecotic acid to GABA uptake sites was studied in post mortem human frontal cortex from 17 suicide victims and 21 controls without known neurological or psychiatric disorder. The suicide victims were subclassified according to the use of violent or non-violent methods and to the presence or absence of a known history of a depressive disorder. No difference was found between the suicide victims and the controls with regard to [3H]nipecotic acid binding to GABA uptake sites (Bmax) and apparent affinity (Kd). No differences were found either with regard to method of suicide or whether a depressive symptom existed or not. The binding of [3H]nipecotic acid to GABA uptake sites was also studied in post mortem human frontal cortex with regard to aging. The age of the subjects ranged from 16 to 84 years. No significant difference in either Bmax or Kd was found. The present findings suggest that the GABA uptake sites in the human frontal cortex are not subjected to regulation or degenerative changes in conditions investigated.

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