OBJECTIVE:Allergic rhinitis (AR) is regulated by the local production and release of several cytokines. Allergen specific immunotherapy (IT) has been widely used for many years as a specific treatment of allergic diseases. This study aimed to investigate the changes in clinical and immunological markers before and after Phoenix dactylifera IT in AR patients. MATERIALS AND METHODS:Total symptom score and levels of total immunoglobulin E (IgE), albumin, interferon (IFN)-γ, tumor necrosis factor (TNF)-α, interleukin (IL)-10, IL-4, and IL-13 were measured in the serum and nasal samples of thirty non-atopic healthy controls and thirty patients with allergic rhinitis before and after 15 months of IT. RESULTS: We found significantly higher concentrations of serum TNF-α and nasal TNF-α and IL-13, and significantly lower concentration of nasal IL-10, in allergic patients than in non-allergic. Moreover, serum and nasal IL-10 increased significantly after IT. However, there was neither a significant reduction in total IgE nor a significant increase in IFN-γ at the end of IT. CONCLUSIONS: Our data show a clinical improvement associated with a decline in some inflammation parameters after IT. Moreover, date palm IT induced a significant increase in serum and nasal IL-10 levels.
RCT Entities:
OBJECTIVE:Allergic rhinitis (AR) is regulated by the local production and release of several cytokines. Allergen specific immunotherapy (IT) has been widely used for many years as a specific treatment of allergic diseases. This study aimed to investigate the changes in clinical and immunological markers before and after Phoenix dactylifera IT in AR patients. MATERIALS AND METHODS: Total symptom score and levels of total immunoglobulin E (IgE), albumin, interferon (IFN)-γ, tumor necrosis factor (TNF)-α, interleukin (IL)-10, IL-4, and IL-13 were measured in the serum and nasal samples of thirty non-atopic healthy controls and thirty patients with allergic rhinitis before and after 15 months of IT. RESULTS: We found significantly higher concentrations of serum TNF-α and nasal TNF-α and IL-13, and significantly lower concentration of nasal IL-10, in allergicpatients than in non-allergic. Moreover, serum and nasal IL-10 increased significantly after IT. However, there was neither a significant reduction in total IgE nor a significant increase in IFN-γ at the end of IT. CONCLUSIONS: Our data show a clinical improvement associated with a decline in some inflammation parameters after IT. Moreover, date palm IT induced a significant increase in serum and nasal IL-10 levels.
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