title: Brain peptides: is substance P a transmitter of pain signals?
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology*; D004723:Endorphins / Q000502:physiology; D005727:Ganglia, Spinal / Q000502:physiology; D049673:History, 20th Century; D006801:Humans; D009411:Nerve Endings / Q000378:metabolism; D018377:Neurotransmitter Agents / Q000502:physiology*; D009619:Nociceptors / Q000502:physiology*; D010146:Pain / Q000503:physiopathology*; D013116:Spinal Cord / Q000502:physiology; D013373:Substance P / Q000266:history / Q000502:physiology*
chemical_list: D004723:Endorphins; D018377:Neurotransmitter Agents; D013373:Substance P