Early life exposure to bisphenol A investigated in mouse models of airway allergy, food allergy and oral tolerance

  • Nygaard U
  • Vinje N
  • Samuelsen M
 et al. 
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The impact of early life exposure to bisphenol A (BPA) through drinking water was investigated in mouse models of respiratory allergy, food allergy and oral tolerance. Balb/c mice were exposed to BPA (0, 10 or 100 μg/ml), and the offspring were intranasally exposed to the allergen ovalbumin (OVA). C3H/HeJ offspring were sensitized with the food allergen lupin by intragastric gavage, after exposure to BPA (0, 1, 10 or 100 μg/ml). In separate offspring, oral tolerance was induced by gavage of 5 mg lupin one week before entering the protocol for the food allergy induction. In the airway allergy model, BPA (100 μg/ml) caused increased eosinophil numbers in bronchoalveolar lavage fluid (BALF) and a trend of increased OVA-specific IgE levels. In the food allergy and tolerance models, BPA did not alter the clinical anaphylaxis or antibody responses, but induced alterations in splenocyte cytokines and decreased mouse mast cell protease (MMCP)-1 serum levels. In conclusion, early life exposure to BPA through drinking water modestly augmented allergic responses in a mouse model of airway allergy only at high doses, and not in mouse models for food allergy and tolerance. Thus, our data do not support that BPA promotes allergy development at exposure levels relevant for humans.

Author-supplied keywords

  • Bisphenol A
  • Food allergy
  • Intestine
  • Lung
  • Respiratory allergy
  • Tolerance

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  • Unni Cecilie Nygaard

  • Nina Eriksen Vinje

  • Mari Samuelsen

  • Monica Andreassen

  • Else Carin Groeng

  • Anette Kocbach Bølling

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