Omega-3 Fatty Acids Interact with DPP10 Region Genotype in Association with Childhood Atopy

Kathleen A. Lee-Sarwar*, Kasper Fischer-Rasmussen, Klaus Bønnelykke, Hans Bisgaard, Bo Chawes, Rachel S. Kelly, Jessica Lasky-Su, Robert S. Zeiger, George T. O’Connor, Leonard B. Bacharier, Vincent J. Carey, Nancy Laranjo, Augusto A. Litonjua, Scott T. Weiss

*Corresponding author for this work

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Abstract

Associations of omega-3 fatty acids (n-3) with allergic diseases are inconsistent, perhaps in part due to genetic variation. We sought to identify and validate genetic variants that modify associations of n-3 with childhood asthma or atopy in participants in the Vitamin D Antenatal Asthma Reduction Trial (VDAART) and the Copenhagen Prospective Studies on Asthma in Childhood 2010 (COPSAC). Dietary n-3 was derived from food frequency questionnaires and plasma n-3 was measured via untargeted mass spectrometry in early childhood and children aged 6 years old. Interactions of genotype with n-3 in association with asthma or atopy at age 6 years were sought for six candidate genes/gene regions and genome-wide. Two SNPs in the region of DPP10 (rs958457 and rs1516311) interacted with plasma n-3 at age 3 years in VDAART (p = 0.007 and 0.003, respectively) and with plasma n-3 at age 18 months in COPSAC (p = 0.01 and 0.02, respectively) in associationwith atopy. Another DPP10 region SNP, rs1367180, interacted with dietary n-3 at age 6 years in VDAART (p = 0.009) and with plasma n-3 at age 6 years in COPSAC (p = 0.004) in association with atopy. No replicated interactions were identified for asthma. The effect of n-3 on reducing childhood allergic disease may differ by individual factors, including genetic variation in the DPP10 region.

Original languageEnglish
Article number2416
JournalNutrients
Volume15
Issue number10
Number of pages14
ISSN2072-6643
DOIs
Publication statusPublished - 2023

Bibliographical note

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© 2023 by the authors.

Keywords

  • allergy
  • asthma
  • genotype
  • omega-3
  • polyunsaturated fatty acids

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