[Regulation of cyclic nucleotide levels by transmitter candidates (author's transl)].
D000109:Acetylcholine / Q000502:physiology; D000227:Adenine Nucleotides / Q000378:metabolism* / Q000502:physiology; D000818:Animals; D002395:Catecholamines / Q000502:physiology; D006632:Histamine / Q000502:physiology; D009469:Neuromuscular Junction / Q000378:metabolism; D018377:Neurotransmitter Agents / Q000502:physiology*; D013329:Structure-Activity Relationship
D000227:Adenine Nucleotides; D002395:Catecholamines; D018377:Neurotransmitter Agents; D006632:Histamine; D000109:Acetylcholine