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Pollen-food allergy syndrome and component sensitization in adolescents: A Japanese population-based study

Kiguchi, Tomoyuki, Yamamoto-Hanada, Kiwako, Saito-Abe, Mayako, Sato, Miori, Irahara, Makoto, Ogita, Hiroya, Miyagi, Yoshitsune, Inuzuka, Yusuke, Toyokuni, Kenji, Nishimura, Koji, Ishikawa, Fumi, Miyaji, Yumiko, Kabashima, Shigenori, Fukuie, Tatsuki, Narita, Masami, Ohya, Yukihiro·2021·PLOS ONE
DOI 10.1371/journal.pone.0249649PMC PMC8046202
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Abstract

Allergic rhino-conjunctivitis with pollen allergy has been prevalent worldwide and Pollen-food allergy syndrome (PFAS) refers to individuals with pollen allergy who develop oral allergy syndrome (OAS) on consuming fruits and vegetables. The prevalence of PFAS varies by region and that in Japanese adolescents remains to be elucidated. In this cross-sectional study, we examined the epidemiological characteristics of PFAS in a general population of Japanese adolescents according to pollen allergy, OAS, and IgE component sensitization. Participants comprised adolescents, at age 13 years, from a prospective birth cohort study in Japan. We administered questionnaires to collect information from parents regarding pollen allergy, PFAS and OAS at each child’s age 13 years. ImmunoCAP ISAC was used to assess IgE component sensitization. Among 506 participants with a complete questionnaire and ISAC measurement results, 56.5% had a history of hay fever, 16.0% had a history of OAS, 51.0% had pollen allergy, and 11.7% had a history of PFAS; additionally, 72.7% were sensitized to one or more tree, grass, and/or weed allergens. The most common sensitization (95.7%) among adolescents with pollen allergy was to Japanese cedar (Cry j 1). The most common causal foods were kiwi and pineapple (both 39.0%). Knowledge levels about PFAS were poor among affected adolescents. We found a high prevalence of PFAS among adolescents in Japan. Although it affects approximately 1/10 adolescents in the general population, public awareness regarding PFAS is poor. Interventional strategies are needed to increase knowledge and to prevent PFAS in the general population.

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Research works printed but not linked: 30

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Metadata

Authors
Kiguchi, T., Yamamoto-Hanada, K., Saito-Abe, M., Sato, M., Irahara, M., Ogita, H., Miyagi, Y., Inuzuka, Y., Toyokuni, K., Nishimura, K., Ishikawa, F., Miyaji, Y., Kabashima, S., Fukuie, T., Narita, M., & Ohya, Y.
Venue
PLOS ONE
Publisher
Public Library of Science (PLoS)
Published
2021-04-14
Volume
16
Issue
4
Pages
e0249649
ISSN
1932-6203
DOI
10.1371/journal.pone.0249649
PMC
PMC8046202
Cited by
41
References
2
Language
en
Licence
creativecommons.org/licenses/by/4.0/ (vor)
Funders
National Center for Child Health and Development (26-18)

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CoChat. (2026). Citation check: Pollen-food allergy syndrome and component sensitization in adolescents: A Japanese population-based study. https://app.cochat.ai/papers/10.1371/journal.pone.0249649
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Kiguchi, T., Yamamoto-Hanada, K., Saito-Abe, M., Sato, M., Irahara, M., Ogita, H., Miyagi, Y., Inuzuka, Y., Toyokuni, K., Nishimura, K., Ishikawa, F., Miyaji, Y., Kabashima, S., Fukuie, T., Narita, M., & Ohya, Y. (2021). Pollen-food allergy syndrome and component sensitization in adolescents: A Japanese population-based study. PLOS ONE. https://doi.org/10.1371/journal.pone.0249649