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Background: Allergic rhinitis (AR) is the most prevalent form of non-infectious rhinitis and is characterized by an immune response mediated by immunoglobulin E (IgE). Aim: This study aims to compare the levels of biochemical markers and other parameters in individuals with AR, non-allergic rhinitis(n-AR), allergic rhinitis accompanied by symptoms of the lower respiratory tract(AR-SLRT), and healthy controls. Study Design: Case control study. Methods: Blood samples from the three study groups, AR ( n = 22), n-AR ( n =20), AR-SLRT group ( n = 21), and the control group (n = 18), were analyzed to ascertain the levels of total IgE, specific IgE, periostin, pendrin, vitamin D, thyroid-stimulating hormone (TSH), free triiodothyronine (Ft3), free thyroxine (Ft4), anti-thyroid peroxidase (TPO), and eosinophilic cationic protein (ECP), as well as the leukocyte formula and hemogram. Results: The AR and n-AR groups had significantly higher hematocrit values in comparison to the control group(p 0.05). Conclusion: All the investigated groups did not differ in ECP, periostin, pendrin, Ft3, Ft4, TSH, anti-TPO, or vitamin D parameters. The groups with positive AR and AR-SLRT had higher eosinophil counts than the control group. The group with AR-SLRT had higher total IgE concentrations than the other groups. Keywords: allergic rhinitis, allergic parameters, IgE, serum, allergic mediators
Rama et al. (Sat,) studied this question.
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