TY - JOUR PY - 1990// TI - Brain 5-HT1 binding sites in depressed suicides JO - Psychopharmacology A1 - Cheetham, S. C. A1 - Crompton, M. R. A1 - Katona, C. L. A1 - Horton, R. W. SP - 544 EP - 548 VL - 102 IS - 4 N2 - 5-HT1 and 5-HT1A binding sites were measured in brain tissue obtained at postmortem from 19 suicides, with definite evidence of depression, and 19 sex and age-matched controls. Thirteen of the depressed suicides had not been prescribed psychoactive drugs recently (drug-free suicides); six had been receiving antidepressant drugs, alone or in combination with other drugs (antidepressant-treated suicides). No significant differences were found in the number or affinity of 5-HT1 and 5-HT1A binding sites in frontal or temporal cortex between drug-free suicides and controls. The number of 5-HT1 sites was significantly lower (by 20%), affinity unaltered, in hippocampus and the affinity significantly lower (by 33%), number unaltered, in amygdala of drug-free suicides than controls. The number of 5-HT1 binding sites tended to be higher and the affinity lower in the antidepressant-treated compared to drug-free suicides, and significantly so in hippocampus. The present results, together with our previous studies, provide no evidence of altered cortical 5-HT markers in depressed suicides, but further emphasise abnormalities in the hippocampus.

Language: en

LA - en SN - 0033-3158 UR - http://dx.doi.org/ ID - ref1 ER -