title: The effect of GYKI-32 887 on dopamine (D2) and serotonin (5-HT1 and 5-HT2) receptors.
abstract: Investigations were carried out with a dopamine agonist compound GYKI-32 887 to compare its binding capacity towards D2, 5-HT1 and 5-HT2 receptors. Synaptosomal membranes were prepared from corpus striatum, hippocampus and frontal cortex of rats. The tritiated ligands used were: 3H-spiperone for D2 and 5-HT2 receptors and 3H-5-HT for 5-HT1 receptors. Comparing the results obtained, IC50 and Ki values, one can conclude that GYKI-32 887 has higher affinity towards D2 receptors than serotonin ones and shows better selectivity than bromocriptine, the reference substance.
mesh_terms: D000818:Animals; D002540:Cerebral Cortex / Q000378:metabolism; D003342:Corpus Striatum / Q000378:metabolism; D004873:Ergolines / Q000378:metabolism / Q000494:pharmacology*; D006624:Hippocampus / Q000378:metabolism; D066298:In Vitro Techniques; D007425:Intracellular Membranes / Q000378:metabolism; D007700:Kinetics; D008297:Male; D051381:Rats; D011954:Receptors, Dopamine / Q000187:drug effects* / Q000378:metabolism; D011985:Receptors, Serotonin / Q000187:drug effects* / Q000378:metabolism; D013574:Synaptosomes / Q000187:drug effects / Q000378:metabolism
chemical_list: D004873:Ergolines; D011954:Receptors, Dopamine; D011985:Receptors, Serotonin; C041696:GYKI 32887