title: Co-operative effects of an inhibitor NH4+ and of an activator K+ on the acid secretory rate in frog gastric mucosa in vitro -- a multi-enzyme system.
mesh_terms: D000818:Animals; D001001:Anura; D004347:Drug Interactions; D005750:Gastric Juice / Q000378:metabolism*; D005753:Gastric Mucosa / Q000187:drug effects / Q000201:enzymology / Q000378:metabolism*; D066298:In Vitro Techniques; D011188:Potassium / Q000494:pharmacology*; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology*; D011892:Rana catesbeiana
chemical_list: D000644:Quaternary Ammonium Compounds; D011188:Potassium