[Histamine].
D000818:Animals; D001921:Brain / Q000378:metabolism*; D002560:Cerebrovascular Circulation / Q000187:drug effects; D006152:Cyclic GMP / Q000378:metabolism; D006632:Histamine / Q000502:physiology*; D009474:Neurons / Q000032:analysis; D011968:Receptors, Histamine / Q000378:metabolism*; D011969:Receptors, Histamine H1 / Q000302:isolation & purification / Q000378:metabolism* / Q000502:physiology
D011968:Receptors, Histamine; D011969:Receptors, Histamine H1; D006632:Histamine; D006152:Cyclic GMP