title: Do the intrinsic actions of benzodiazepine receptor antagonists imply the existence of an endogenous ligand for benzodiazepine receptors?
mesh_terms: D000818:Animals; D001007:Anxiety; D001522:Behavior, Animal; D001570:Benzodiazepinones / Q000494:pharmacology*; D002243:Carbolines / Q000494:pharmacology; D003292:Convulsants / Q000494:pharmacology; D026261:Diazepam Binding Inhibitor; D004597:Electroshock; D005106:Exploratory Behavior / Q000187:drug effects; D005442:Flumazenil; D006801:Humans; D008024:Ligands; D009419:Nerve Tissue Proteins / Q000502:physiology*; D011963:Receptors, GABA-A / Q000187:drug effects / Q000502:physiology*
chemical_list: D001570:Benzodiazepinones; D002243:Carbolines; D003292:Convulsants; D026261:Diazepam Binding Inhibitor; D008024:Ligands; D009419:Nerve Tissue Proteins; D011963:Receptors, GABA-A; D005442:Flumazenil; C042568:ZK 93426