title: Pharmacological specificity of brain histamine H2-receptors differs in intact cells and cell-free preparations.
mesh_terms: D000262:Adenylyl Cyclases / Q000378:metabolism; D000818:Animals; D000929:Antidepressive Agents, Tricyclic / Q000494:pharmacology; D002474:Cell-Free System; D004789:Enzyme Activation / Q000187:drug effects; D006146:Guanidines / Q000494:pharmacology*; D006168:Guinea Pigs; D006624:Hippocampus / Q000187:drug effects*; D006634:Histamine H1 Antagonists / Q000494:pharmacology; D006635:Histamine H2 Antagonists / Q000494:pharmacology; D007093:Imidazoles / Q000494:pharmacology*; D017446:Impromidine; D066298:In Vitro Techniques; D011968:Receptors, Histamine / Q000187:drug effects*; D011970:Receptors, Histamine H2 / Q000187:drug effects*
chemical_list: D000929:Antidepressive Agents, Tricyclic; D006146:Guanidines; D006634:Histamine H1 Antagonists; D006635:Histamine H2 Antagonists; D007093:Imidazoles; D011968:Receptors, Histamine; D011970:Receptors, Histamine H2; D017446:Impromidine; D000262:Adenylyl Cyclases