Allergic rhinitis phenotypes based on mono-allergy or poly-allergy.

Area of Science:

• Immunology
• Otorhinolaryngology
• Allergology

Background:

• Allergic rhinitis (AR) is an inflammatory condition with characteristic symptoms.
• Poly-allergy, or sensitization to multiple allergens, is common in AR patients.
• Classifying AR phenotypes is crucial for understanding disease heterogeneity.

Purpose of the Study:

• To determine if the number of allergies influences the phenotype of allergic rhinitis.
• To investigate the relationship between poly-allergy and AR characteristics.

Main Methods:

• Evaluation of 83 patients diagnosed with allergic rhinitis.
• Assessment of allergen sensitization profiles.
• Quantification of nasal symptoms using Visual Analog Scale (VAS).
• Analysis of nasal cytology for inflammatory markers.

Main Results:

• Poly-allergic patients reported significantly more severe nasal obstruction and sneezing compared to mono-allergic patients.
• Increased eosinophilic and mast cell infiltration was observed in the nasal passages of poly-allergic individuals.
• Statistical significance was achieved for all key comparisons (p < 0.001).

Conclusions:

• The study identifies poly-allergy as a defining factor for a distinct allergic rhinitis phenotype.
• Poly-allergic AR is associated with heightened inflammation and more pronounced clinical symptoms.
• These findings highlight the clinical relevance of differentiating AR phenotypes based on allergen burden.