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Allergy Asthma Proc. 2020 Jan 1;41(1):e19-e25. doi: 10.2500/aap.2020.41.190020.

The role of antioxidants and 25-hydroxyvitamin D during pregnancy in the development of allergic diseases in early school-age children - Polish Mother and Child Cohort Study.

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From the Department of Pediatrics and Allergy, Medical University of Lodz, Copernicus Memorial Hospital, Lodz, Poland.
Department of Environmental Epidemiology, Nofer Institute of Occupational Medicine, Lodz, Poland; and.
Department of Biological and Environmental Monitoring, Nofer Institute of Occupational Medicine, Lodz, Poland.


Purpose: Based on the available data, alterations of the antioxidant defense as well as the vitamin status in mothers may affect the prenatal process of lung and immune system development as a pathophysiological background of increased prevalence of allergic diseases. The primary aim of the current study was to assess the associations among cord blood concentrations of zinc (Zn); copper (Cu); selenium (Se); β-carotene; and vitamin A, E, and D, and the occurrence of atopic dermatitis, food allergy, allergic rhinitis, and asthma in early school-age children. Methods: We evaluated 211 children, 7-9 years old, from the Polish Mother and Child Cohort Study. the women were interviewed during pregnancy to collect demographic and socioeconomic data, and the medical and reproductive history. At delivery, umbilical cord blood plasma was sampled. Seven to nine years after the birth, the child's exposure and health status (including skin-prick test and spirometry for allergy assessment and urine sample for cotinine level) were examined. In the analyses, a multivariable model was applied. Results: Statistically significant relationships were found among Zn; Cu; Se; and vitamin A, E, and D concentrations in cord blood; and the prevalence of food allergy, allergic rhinitis, atopic dermatitis, and asthma in children ages 7-9 years after adjustment for several confounders. Conclusion: We showed an imbalance in the antioxidant defense system in cord blood, which may lead to the occurrence of allergic diseases later in life. The maternal diet may have substantial potential to modify immune tolerance and, consequently, the development of allergic disease in the offspring.Clinical trial NCT01861548, <ext-link xmlns:xlink="" ext-link-type="uri" xlink:href=""></ext-link>.


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