Different effects of long-term haloperidol administration on GABA/sub A/ and benzodiazepine receptors in various parts of the brain
The data described in this paper are evidence that long-term administration of haloperidol has an opposite effect on the density of GABA/sub A/ and benzodiazepine receptors in the fore- and hindbrain. These changes are reflected at the molecular level as reversal of behavioral effect of the GABA/sub A/ agonist muscimol and the benzodiazepine agonist Ro15-1788. By means of parallel behavioral tests, binding of /sup 3/H-muscimol in the fore- and hindbrain of rats was investigated in experiments in vitro. /sup 3/H-flunitrazepam binding experiments were carried out in vivo on mice. Parallel with reversal of the behavioral effects of muscimol and Ro15-1788, the number of binding sites both for /sup 3/H-muscimol and for /sup 3/H-flunitrazepam in the forebrain was reduced; in the hindbrain the opposite process took place.
- Research Organization:
- Tartu Univ., USSR
- OSTI ID:
- 5784859
- Journal Information:
- Bull. Exp. Biol. Med. (Engl. Transl.); (United States), Vol. 101:4; Other Information: Translated from Byulleten' Ehksperimental'noj Biologii i Meditsiny; 101: No. 4, 433-436(Apr 1986)
- Country of Publication:
- United States
- Language:
- English
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