With the SP, total IgE and HDM sIgE were BDL in 3 and resp. 4 out of 15 AR patients. Results In the first experiment, levels of total IgE and HDM sIgE were significantly higher in HDM AR patients compared to controls. Keywords: Rhinitis; Allergic Rhinitis; Nasal Mucosa; House Dust EN Rhinitis Allergic Rhinitis Nasal Mucosa House Dust 1 1 1 03/02/21 20150627 NES 150627 Background There is evidence for local production of IgE in the nasal mucosa of patients with allergic rhinitis (AR). [Extracted from the article]