The presence of two cellular pools of rab brain histamine.
D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D001253:Astrocytes / Q000032:analysis; D001923:Brain Chemistry; D002467:Cell Nucleus / Q000032:analysis; D005260:Female; D006632:Histamine / Q000032:analysis*; D008297:Male; D008407:Mast Cells / Q000032:analysis; D009474:Neurons / Q000032:analysis; D009836:Oligodendroglia / Q000032:analysis; D051381:Rats; D013347:Subcellular Fractions / Q000032:analysis
D006632:Histamine