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Relationship among airborne pollen, sensitization, and pollen food allergy syndrome in Asian allergic children

Hwang, Yoonha, Motomura, Chikako, Fukuda, Hironobu, Kishikawa, Reiko, Watanabe, Naoto, Yoshihara, Shigemi·2022·PeerJ
DOI 10.7717/peerj.14243PMC PMC9635357
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Abstract

Background: Causes of pediatric pollen food allergy syndrome (PFAS) differ depending on airborne pollen levels in a particular region. We aimed to analyze airborne pollen counts, IgE sensitization rates, and PFAS incidence among children with allergies in South Korea and Japan. Methods: This cross-sectional study included children aged 5–17 years with allergies in 2017. Airborne pollen samples were collected from Busan in South Korea, and Fukuoka and Tochigi in Japan. Questionnaires were used to assess bronchial asthma, seasonal allergic rhinitis, atopic dermatitis, food allergy, and PFAS. The serum IgE specific to Dermatophagoides pteronyssinus, pollen, tomato, and peach were investigated. Results: In total, 57, 56, and 20 patients from Busan, Fukuoka, and Tochigi, respectively, were enrolled. Airborne Japanese cedar and cypress pollen were predominant in Fukuoka and Tochigi, whereas pine and alder pollen were predominant in Busan. Children with allergies in Fukuoka and Tochigi had a significantly higher sensitization rate to Japanese cedar, cypress, juniper, orchard grass, ragweed, Japanese hop, and tomato compared with children in Busan. In Fukuoka and Tochigi, where Japanese cedar and cypress pollen were frequently scattered, high sensitizations among allergic children were observed. The sensitization rate was not affected by the pollen count in alder, grass, ragweed, and Japanese hop. In multivariable analysis, only alder sensitization was found to be associated with PFAS (odds ratio: 6.62, 95% confidence interval: 1.63–26.87, p = 0.008). In patients with PFAS in Busan and Tochigi, peach associated with birch allergen Bet v 1 was a causative food item for PFAS. Moreover, PFAS was associated with ragweed and Japanese hop pollen sensitization in Fukuoka. Conclusion: Regardless of pollen counts, alder pollen sensitization was associated with PFAS in children. Ragweed and Japanese hop pollen sensitization were associated with PFAS, particularly among children in southern Japan.

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Figure 1 Geographical location of Busan, Fukuoka and Tochigi.
Figure 1 Geographical location of Busan, Fukuoka and Tochigi.CC BY · PubMed Central

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Research works printed but not linked: 20

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Metadata

Authors
Hwang, Y., Motomura, C., Fukuda, H., Kishikawa, R., Watanabe, N., & Yoshihara, S.
Affiliations
  • Department of Pediatrics, Busan St. Mary’s Hospital, Busan, South Korea
  • Department of Pediatrics, National Hospital Organization Fukuoka National Hospital, Fukuoka, Japan
  • Department of Pediatrics, Dokkyo Medical University Hospital, Tochigi, Japan
  • Department of Allergy, National Hospital Organization Fukuoka National Hospital, Fukuoka, Japan
  • Department of Allergy Internal Medicine, Seirei Yokohama Hospital, Kanagawa, Japan
Venue
PeerJ
Publisher
PeerJ
Published
2022-11-01
Volume
10
Pages
e14243
ISSN
2167-8359
DOI
10.7717/peerj.14243
PMC
PMC9635357
Cited by
13
References
1
Language
en
Licence
creativecommons.org/licenses/by/4.0/ (unspecified)

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CoChat. (2026). Citation check: Relationship among airborne pollen, sensitization, and pollen food allergy syndrome in Asian allergic children. https://app.cochat.ai/papers/10.7717/peerj.14243
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Hwang, Y., Motomura, C., Fukuda, H., Kishikawa, R., Watanabe, N., & Yoshihara, S. (2022). Relationship among airborne pollen, sensitization, and pollen food allergy syndrome in Asian allergic children. PeerJ. https://doi.org/10.7717/peerj.14243