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Environmental research v.160, 2018년, pp.518 - 523   SCI SCIE
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Prenatal exposure to perfluoralkyl substances (PFASs) associated with respiratory tract infections but not allergy- and asthma-related health outcomes in childhood

Impinen, A. (Division for Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway ) ; Nygaard, U.C. (Division for Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway ) ; Lødrup Carlsen, K.C. (Institute of Clinical Medicine, University of Oslo, Oslo, Norway ) ; Mowinckel, P. (Institute of Clinical Medicine, University of Oslo, Oslo, Norway ) ; Carlsen, K.H. (Institute of Clinical Medicine, University of Oslo, Oslo, Norway ) ; Haug, L.S. (Division for Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway ) ; Granum, B. (Division for Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway ) ;
  • 초록  

    Abstract Background Prenatal exposure to perfluoralkyl substances (PFASs) has been reported to be associated with immunosuppression in early childhood, but with contradictory findings related to atopic and lung diseases. Aim We aimed to determine if prenatal exposure to PFASs is associated with asthma or other allergic diseases or respiratory tract infections in childhood. Methods Nineteen PFASs were measured in cord blood available from 641 infants in the Environment and Childhood Asthma (ECA) prospective birth cohort study. The six most abundant PFASs were perfluorooctane sulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorooctanesulfonamide (PFOSA), perfluorohexane sulfonic acid (PFHxS), perfluorononanoic acid (PFNA), and perfluoroundecanoic acid (PFUnDA). Health outcomes were assessed at two and ten years of age, and included reported obstructive airways disease (wheeze by 10 years; asthma by 2 and 10 years; reduced lung function at birth; allergic rhinitis by 10 years), atopic dermatitis (AD) by 2 and 10 years, allergic sensitization by 10 years, and episodes of common respiratory tract infections (common cold by 2 years, lower respiratory tract infections (LRTI) by 10 years). The associations between exposure and health outcomes were examined using logistic and Poisson regression. Results The number of reported airways infections were significantly associated with cord blood concentrations of PFAS; common colds by two years with PFUnDA (β = 0.11 (0.08–0.14)) and LRTIs from 0 to 10 years of age with PFOS (β = 0.50 (0.42–0.57)), PFOA (β = 0.28 (0.22–0.35)), PFOSA (β = 0.10 (0.06–0.14)), PFNA (β = 0.09 (0.03–0.14)) and PFUnDA (β = 0.18 (0.13–0.23)) concentrations. Neither reduced lung function at birth, asthma, allergic rhinitis, AD nor allergic sensitization were significantly associated with any of the PFASs. Conclusion Although prenatal exposure to PFASs was not associated with atopic or lung manifestations by 10 years of age, several PFASs were associated with an increased number of respiratory tract infections in the first 10 years of life, suggesting immunosuppressive effects of PFASs. Highlights Prenatal exposure to PFASs may have immunotoxic effects in humans. Prenatal PFOS, PFOA, PFOSA, PFNA and PFUnDA were associated with increased LRTI. Prenatal PFUnDA was associated with increased number of common colds at two years. No associations between PFASs and allergy- and asthma-related outcomes were found.


  • 주제어

    Perfluoralkyl substances .   Immunotoxicity .   Asthma .   Allergy .   Infections .   Children.  

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