title: Structure-activity analysis of five constrained somatostatin like peptides with opioid antagonist properties.
mesh_terms: D000818:Animals; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D051379:Mice; D008813:Mice, Inbred ICR; D009119:Muscle Contraction / Q000187:drug effects; D009130:Muscle, Smooth / Q000187:drug effects; D009292:Narcotic Antagonists; D010455:Peptides / Q000494:pharmacology*; D013004:Somatostatin / Q000494:pharmacology*; D013329:Structure-Activity Relationship
chemical_list: D009292:Narcotic Antagonists; D010455:Peptides; C029993:somatostatin-like peptides; D013004:Somatostatin