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Elucidating the mechanism underlying the ocular symptoms associated with allergic rhinitis

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Ocular symptoms occur in 40% of patients with allergic rhinitis. The purpose of this study was to determine whether nasal challenge with antigen induces a nasal-ocular reflex. We performed a double-blind crossover trial in 20 subjects. A nasal challenge with antigen was performed in one nostril, and the response was assessed in both nostrils and both eyes. Subjects were treated before challenge with either placebo or azelastine, an H1-antihistamine. Nasal challenge with antigen led to a nasonasal reflex and a nasal-ocular reflex as manifested by an increase in symptoms and secretion weights. Treatment with azelastine reduced both reflexes. A nasal-ocular reflex follows nasal challenge with antigen and probably contributes to the ocular symptoms associated with allergic rhinitis.
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Keywords: Albumin; allergic rhinitis; allergy; azelastine; eye; histamine; infection; nasal challenge; ocular; reflex

Document Type: Review Article

Affiliations: Department of Surgery, Section of Otolaryngology–Head and Neck Surgery, The University of Chicago, Chicago, Ilinois

Publication date: 2008-01-01

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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