TY - JOUR PY - 1987// TI - Benzodiazepine receptor and neurotransmitter studies in the brain of suicides JO - Life Sciences A1 - Manchon, M. A1 - Kopp, N. A1 - Rouzioux, J. J. A1 - Lecestre, D. A1 - Deluermoz, S. A1 - Miachon, S. SP - 2623 EP - 2630 VL - 41 IS - 24 N2 - The characteristics of benzodiazepine binding sites (affinity, number heterogeneity) were studied on frozen sections of hippocampus of 7 suicides and 5 controls subjects, using biochemical and autoradiographic techniques. 3H flunitrazepam was used as ligand, clonazepam and CL 218,872 as displacing agents. Some neurotransmitters or their derivatives (GABA, catecholamines, hydroxy-indols) were evaluated quantitatively in parallel in the hippocampal tissue by liquid chromatography. We observed mainly an increase in the Ki of CL 218,872 subtype I binding sites in suicides, (7.48 +/- 1.7 to 17.24 +/- 1.7 nM, P less than 0.01), (m +/- SEM) and an increase in % of type I binding sites (30 +/- 4.2 to 42 +/- 2.5, P = 0.01). Among neurotransmitters, only norepinephrine differed significantly between controls and suicides (11.34 +/- 1.9 to 24.34 ng/g tissue, P = 0.02).
Language: en
LA - en SN - 0024-3205 UR - http://dx.doi.org/ ID - ref1 ER -