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Science 23 September 1983:
Vol. 221. no. 4617, pp. 1304 - 1307
DOI: 10.1126/science.6310753
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Articles

Science, Vol 221, Issue 4617, 1304-1307
Copyright © 1983 by American Association for the Advancement of Science

articles

Coupling of dopamine D1 recognition sites with adenylate cyclase in nuclei accumbens and caudatus of schizophrenics

M Memo, JE Kleinman, and I Hanbauer

Sodium fluoride, guanylimidodiphosphate, and the D1 dopamine receptor agonist SKF 38393 elicited a greater activation of adenylate cyclase in homogenates of caudate nucleus in schizophrenic than in nonschizophrenic subjects used as controls. Similarly, a greater activation of adenylate cyclase by sodium fluoride was observed in the nucleus accumbens of schizophrenics. These findings suggest that the coupling of dopamine D1 recognition sites with adenylate cyclase is more efficient in the brain of the schizophrenic, presumably because of an increased affinity of the G/F protein for guanosine 5'-triphosphate.


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Heterologous Sensitization of Recombinant Adenylate Cyclases by Activation of D2 Dopamine Receptors.
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