title: Relaxations of guinea-pig fundic strip by adenosine, adenine nucleotides and electrical stimulation: antagonsism by theophylline and desensitization to adenosine and its derivatives.
mesh_terms: D000227:Adenine Nucleotides / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D000241:Adenosine / Q000031:analogs & derivatives / Q000037:antagonists & inhibitors / Q000494:pharmacology*; D000818:Animals; D004558:Electric Stimulation; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009126:Muscle Relaxation / Q000187:drug effects*; D010276:Parasympatholytics / Q000494:pharmacology; D051381:Rats; D012110:Reserpine / Q000494:pharmacology; D013270:Stomach / Q000187:drug effects / Q000502:physiology; D013806:Theophylline / Q000494:pharmacology*
chemical_list: D000227:Adenine Nucleotides; D010276:Parasympatholytics; D012110:Reserpine; D013806:Theophylline; D000241:Adenosine