histamine compound - closeup view 3d

organic nitrogenous compound brain spinal cord uterus hydrochloride tissues hormone dao allergies autocoid endocrine glands neurotransmitter inflammatory response mediator itching basophils mast cells capillaries blood proteins infected phosphorus white hygroscopic crystals dissolved water tautomeric hypothalamus stomach immunologic antibodies membranes degranulate antigen amines alkaloids antibiotics polymyxin wine cocoa chocolate champagne histamine isometric view closeup