| Literature DB >> 23536 |
J P Green, C L Johnson, H Weinstein, S Maayani.
Abstract
D-Lysergic acid diethylamide and D-2-bromolysergic acid diethylamide are competitive antagonists of the histamine activation of adenylate cyclase [ATP pyrophosphate-lyase (cyclizing); E.C. 4.6.1.1] in broken cell preparations of the hippocampus and cortex of guinea pig brain. The adenylate cyclase is linked to the histamine H2-receptor. Both D-lysergic acid diethylamide and D-2-bromolysergic acid diethylamide show topological congruency with potent H2-antagonists. D-2-Bromolysergic acid diethylamide is 10 times more potent as an H2-antagonist than cimetidine, which has been the most potent H2-antagonist reported, and D-lysergic acid diethylamide is about equipotent to cimetidine. Blockade of H2-receptors could contribute to the behavioral effects of D-2-bromolysergic acid diethylamide and D-lysergic acid diethylamide.Entities:
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Year: 1977 PMID: 23536 PMCID: PMC431860 DOI: 10.1073/pnas.74.12.5697
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205