Localization of Histamine H₁ Receptors and H₂ Receptors in Human Nasal Mucosa

Abstract

We were studied the autoradiographic localization of H₁ Receptors (H₁ R) and H₂ receptors (H₂ R) in human nasal mucosa. Autoradiograms indicated that H₁ R exist on the basement membrane directly under the epithelium and vessel smooth muscle, and that H₂ R exist on the lamina propria mucosa directly under the basement membrane and vessel smooth muscle.