4.5 Article

Sensitization to Airborne Fungal Allergens Associates with Asthma and Allergic Rhinitis Presentation and Severity in the Singaporean/Malaysian Population

期刊

MYCOPATHOLOGIA
卷 186, 期 5, 页码 583-588

出版社

SPRINGER
DOI: 10.1007/s11046-021-00532-6

关键词

Allergy; Fungi; Sensitization; Aspergillus; Curvularia

类别

资金

  1. Singapore Immunology Network (SIgN)
  2. National Medical Research Council (NMRC) (Singapore)
  3. Biomedical Research Council (BMRC) (Singapore)
  4. Agency for Science Technology and Research (A*STAR) (Singapore) [N-154-000-038-001, R-154-000-191-112, R-154000-404-112, R-154-000-553-112, R-154-000-565-112, R154-000-630-112, R-154-000-A08-592, R-154-000-A27-597, R-154-000-A91-592, R-154-000-A95-592]
  5. The Agency for Science Technology and Research (A*STAR) (Singapore) [BMRC/01/1/21/18/077, BMRC/04/1/21/19/315, SIgN-06-006, SIgN-08-020, NMRC/1150/2008, H17/01/a0/008]
  6. Singapore Ministry of Education Academic Research Fund

向作者/读者索取更多资源

The study highlights the significant role of fungal sensitization in the manifestation of asthma and allergic rhinitis in the Southeast Asian Chinese population. Sensitization to Curvularia lunata was found to be associated with increased risk of asthma and allergic rhinitis. Additionally, sensitization to Aspergillus spp. was the most common fungal sensitization, with higher sIgE titers correlated with increased risk of allergic rhinitis.
Fungal spores and conidia are the major components of total airspora in the tropical Asia environment, and their sensitization patterns are often associated with allergic diseases such as asthma, allergic rhinitis (AR), and atopic dermatitis. Hence, we recruited a cross-sectional cohort of 9223 Singapore/Malaysia Chinese adults and assessed their sensitization against Curvularia lunata allergen using the skin prick test approach. A subset of this cohort (n = 254) was also screened for specific Immunoglobulin E (sIgE) titers against a panel of 11 fungal allergens. We found significant association of Curvularia lunata sensitization with the risk of asthma (OR = 1.66, 95% CI: 1.17-2.33; p = 0.00391) and AR (OR = 1.69, 95% CI: 1.18-2.41; p = 0.00396). Among asthmatic patients (n = 1680), Curvularia lunata sensitization also increased frequencies of wheezing symptoms (OR = 1.81, 95% CI: 1.05-2.96; p = 0.0239), general practitioner/specialist visits (OR = 2.37, 95% CI: 1.13-4.61; p = 0.0157), and other asthma-related exacerbation events (OR = 2.14, 95% CI: 1.04-4.10; p = 0.0289). In our serum cohort, sensitization to Aspergillus spp. was the most common fungal sensitization, with 23.6% (n = 60) had a class 3 and above sensitization (positive sensitization; sIgE titers of > 3.5 kU/L) against this allergen. Increasing sIgE titer against Aspergillus spp. was also correlated with increased AR risk and AR-related symptoms. In conclusion, our findings emphasize an important role of fungal sensitization in the manifestations of asthma and AR in the Southeast Asian Chinese population.

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