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Arch Immunol Ther Exp (Warsz). 2020 Feb 19;68(1):6
Authors: Li S, Zhang X, Li Z, Jiang X, Zhang N, Zhang J, Huang Y, Zhao H, Jiang Y, Li N
Abstract
Allergic rhinitis (AR) is an IgE-mediated inflammation which causes olfactory dysfunction. Antihistamines have been widely used to treat AR while few studies have investigated the effect of antihistamines on improving the sense of smell. In addition, the underlying mechanisms are not well elucidated. We established the ovalbumin (OVA)-induced allergic rhinitis rat model and administrated desloratadine to AR rats. The AR symptoms, serum level of OVA-specific IgE and IL-17, and expression of IL-4, IL-5 and IL-13 in nasal mucosa were measured. The olfactory dysfunction was monitored by buried food test and the expression of GluR1 was measured. Desloratadine treatment alleviated AR symptoms, decreased serum level of OVA-specific IgE and IL-17 in AR rats. Desloratadine decreased IL-4, IL-5, and IL-13 expression in nasal mucosa of AR rats. Desloratadine ameliorated olfactory dysfunction in AR rats and decreased GluR1 expression in AR rats. Desloratadine treatment alleviated AR symptoms and ameliorated olfactory dysfunction in AR rats. The expression of AMPA receptor subunit GluR1 in olfactory bulb was associated with olfactory disorder.
PMID: 32076842 [PubMed - in process]
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