Cord Blood 25-Hydroxyvitamin D3 and Allergic Disease During Infancy

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OBJECTIVE: There has been growing interest in vitamin D insufficiency as a predisposing factor for allergy development based on immunoregulatory properties and epidemiological studies. The aim of this study was to investigate the association between vitamin D exposure in utero and allergic outcomes in the first year of life. METHODS: Cord blood (CB) vitamin D was measured in 231 high-risk infants from an Australian prospective birth cohort. CB 25-hydroxyvitamin D3 (25[OH]D3) concentration was analyzed in relation to maternal vitamin D intake and the development of infant eczema, allergen sensitization, and immunoglobulin E-mediated food allergy. RESULTS: Maternal intake of supplemental vitamin D was significantly correlated with CB 25(OH)D3 concentration (ρ = 0.244, P = .003), whereas dietary vitamin D did not influence CB levels. There was significant seasonal variation in CB 25(OH)D3 concentration suggesting that sunlight exposure was an important determinant. Lower CB vitamin D status was observed in infants that developed eczema (P = .018), and eczema was significantly more likely in those with concentrations
Original languageEnglish
Pages (from-to)1128-1135
Issue number5
Early online date22 Oct 2012
Publication statusPublished - 1 Nov 2012


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