TY - JOUR A1 - Eckrich, Jonas A1 - Hinkel, Julia A1 - Fischl, Anna A1 - Herrmann, Eva A1 - Holtappels, Gabriele A1 - Bachert, Claus A1 - Zielen, Stefan T1 - Nasal IgE in subjects with allergic and non-allergic rhinitis T2 - World Allergy Organization journal N2 - Purpose: The prevalence of "ocal allergic rhinitis" within individuals suffering from perennial rhinitis remains uncertain, and patients usually are diagnosed with non-allergic rhinitis. The aim of this study was to evaluate the prevalence of a potential "local allergic rhinitis" in subjects suffering from non-allergic rhinitis in a non-selected group of young students. Methods: 131 students (age 25.0 ± 5.1 years) with a possible allergic rhinitis and 25 non-allergic controls without rhinitis symptoms (age 22.0 ± 2.0 years) were recruited by public postings. 97 of 131 students with rhinitis were tested positive (≥3 mm) to prick testing with 17 frequent allergens at visit 1. Twenty-four 24 subjects with a house dust mite allergy, 21 subjects with a non-allergic rhinitis, and 18 non-allergic controls were further investigated at visit 2. Blood samples were taken, and nasal secretion was examined. In addition, all groups performed a nasal provocation test with house dust mite (HDM). Results: In serum and nasal secretion, total IgE and house dust mite specific IgE significantly differed between HDM positive subjects and controls. However, no differences between non-allergic subjects and control subjects were quantifiable. Neither a nasal provocation test nor a nasal IgE to HDM allergens showed a measurable positive response in any of the non-allergic rhinitis subjects as well as the healthy controls, whilst being positive in 13 subjects with HDM allergy. Conclusions: Nasal IgE is present in subjects with HDM allergy, but not in non-allergic rhinitis. In the investigated non-selected population, exclusive local production of IgE is absent. By implication, therefore, our findings challenge the emerging concept of local allergic rhinitis. Study identifier at ClinicalTrials.gov: NCT 02810535. KW - Allergic rhinitis KW - House dust mite allergy KW - Local IgE KW - Local allergic rhinitis KW - Non-allergic-rhinitis Y1 - 2020 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54738 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-547386 SN - 1939-4551 N1 - © 2020 The Authors. Published by Elsevier Inc. on behalf of World Allergy Organization. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). VL - 13 IS - 6, Art. 100129 SP - 1 EP - 12 PB - Wolters Kluwer Health Lippincott Williams & Wilkins CY - Hagerstown, Md. ER -