title: A smooth muscle contracting substance in extracts of human umbilical cord.
mesh_terms: D000109:Acetylcholine / Q000494:pharmacology; D000804:Angiotensin II / Q000494:pharmacology; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D012898:Autacoids; D001681:Biological Assay; D001794:Blood Pressure / Q000187:drug effects*; D001920:Bradykinin / Q000494:pharmacology; D002415:Cats; D002854:Chromatography, Paper; D002918:Chymotrypsin / Q000494:pharmacology; D003106:Colon / Q000187:drug effects; D003401:Creatine / Q000494:pharmacology; D004155:Diphenhydramine / Q000494:pharmacology; D004586:Electrophoresis; D005260:Female; D006168:Guinea Pigs; D006632:Histamine / Q000494:pharmacology; D007082:Ileum / Q000187:drug effects; D008784:Methysergide / Q000494:pharmacology; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects*; D011817:Rabbits; D051381:Rats; D012701:Serotonin / Q000494:pharmacology; D014020:Tissue Extracts / Q000494:pharmacology*; D014357:Trypsin / Q000494:pharmacology; D014469:Umbilical Arteries; D014470:Umbilical Cord; D014471:Umbilical Veins; D014599:Uterus / Q000187:drug effects
chemical_list: D012898:Autacoids; D014020:Tissue Extracts; D000804:Angiotensin II; D012701:Serotonin; D001285:Atropine; D006632:Histamine; D004155:Diphenhydramine; D002918:Chymotrypsin; D014357:Trypsin; D003401:Creatine; D000109:Acetylcholine; D001920:Bradykinin; D008784:Methysergide