Ige Sensitization to Inhalant Allergens and Its Association With Allergic Diseases in Adults Pubmed



Shoormasti RS¹ ; Fazlollahi MR¹ ; Kazemnejad A² ; Tayebi B¹ ; Nadali F^{3, 4} ; Shoushtari MS^{1, 5} ; Alamdari SK¹ ; Moslemi M⁴ ; Movahedi M⁶ ; Mari A⁷ ; Pourpak Z¹ ; Moin M^{1, 6}
Source: Iranian Journal of Allergy# Asthma and Immunology Published:2018

Abstract

Allergic sensitization to inhalant allergens could be considered as a predictor in allergic diseases. The objective of this study was to assess IgE-mediated sensitization to inhalant allergens in allergic and non-allergic adults as well as the evaluation of its association with allergic diseases. This cross-sectional study was conducted from 2013 to 2016 in 604 allergic and 102 nonallergic adults selected from blood donor volunteers in Tehran, Iran. After taking informed consent, a standard questionnaire was filled to determine asthma, allergic rhinitis and/or conjunctivitis and atopic dermatitis in participants. Specific IgE assay to common inhalant allergens was performed for all subjects. Logistic regression analysis was used to evaluate the impact of IgE sensitization on allergic diseases. A total of 371(61.4%) allergic subjects and 41(40.2%) non-allergic patients were males. The weeds (especially saltwort) and grasses (particularly meadow fescue and ryegrass) were identified as the most common inhalant allergens. The prevalence of IgE sensitization to trees, weeds, and grasses was higher in subjects with allergic rhino-conjunctivitis and trees sensitization was a significant factor in them [OR=2.32, 95% CI (1.58-3.41)]. IgE sensitization to any inhalant allergens could be a predictor for allergic rhinitis, conjunctivitis and rhinoconjunctivitis in adults [OR=2.20, 95% CI (1.54-3.15], [OR=1.81, 95% CI (1.28-2.54)] and [OR=2.55, 95% CI (1.72-3.78)], respectively. With an increase in the sum of specific IgE concentrations, the prevalence of allergic conjunctivitis and rhino-conjunctivitis also increased. Our results showed the association between positive specific IgE and its concentration with some allergic diseases which could help physicians to prevent such diseases by recognizing and treating them, particularly in individuals with a positive family history of allergic diseases. Copyright© April 2018, Iran J Allergy Asthma Immunol. All rights reserved.