Dog ownership at three months of age is associated with protection against food allergy
| Autor: | Michael R. Perkin, Joanna Craven, W.H. Irwin McLean, Eat Study Team, Carsten Flohr, Suzana Radulovic, Kirsty Logan, Gideon Lack, Tom Marrs |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty Immunology Disease law.invention Cohort Studies 03 medical and health sciences 0302 clinical medicine Dogs Randomized controlled trial law Food allergy Internal medicine medicine Immune Tolerance Odds Ratio Immunology and Allergy Animals Humans Sensitization 2. Zero hunger business.industry Ownership digestive oral and skin physiology Age Factors Infant Odds ratio Atopic dermatitis Environmental Exposure Pets Allergens medicine.disease Confidence interval 3. Good health 030104 developmental biology medicine.anatomical_structure 030228 respiratory system Animals Domestic Cats Immunization business Food Hypersensitivity Cohort study |
| ISSN: | 1398-9995 |
| Popis: | Background The prevention of food allergy is a key priority for reducing the burden of allergic disease. Environmental exposures modulate the risk of developing food allergy and some of this may be mediated by the infants' developing microbiome. However, the role of potentially protective environmental exposures, such as pet ownership, is largely uninvestigated with respect to food allergy. Methods We performed a secondary cohort analysis in the Enquiring About Tolerance (EAT) study, which enrolled 1303 three-month infants onto a randomized trial to prevent food allergy. A survey elicited domestic animal ownership and participants were examined for atopic dermatitis (AD) at enrolment. Sensitization to foods and aeroallergens were elicited by skin and serum testing at 3, 12 and 36 months. Food allergy status was determined by double-blind placebo-controlled food challenges between 1 and 3 years. Results Food allergy was diagnosed amongst 6.1% (68/1124) of participants with complete data. No significant relationships were demonstrated between food allergy and caesarean delivery, infections or antibiotic exposure in early life. After adjusting for familial atopic disease, maternal dog/cat sensitization and participant AD, living with dogs was associated with a 90% reduction in the odds of infants developing food allergy (adjusted odds ratio (aOR) 0.10 (confidence interval (CI) 0.01-0.71), P = 0.02). None of the 49 infants living with at least two dogs developed food allergy, suggesting a dose-response relationship (each dog owned aOR 0.12 (CI 0.02-0.81), P = 0.03). No relationship was demonstrated between owning dogs or cats and the development of AD. Conclusion Dog ownership in infancy may prevent food allergy. |
| Databáze: | OpenAIRE |
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