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Early exposure to pets: good or bad?
Jeremy D Bufford1, James E Gern
1University of Wisconsin Hospital and Clinics, 600 Highland Avenue, K4/918, CSC Box 9988, Madison, WI 53792, USA.
Current Allergy and Asthma Reports
|August 19, 2007
Summary
Early childhood pet exposure may prevent allergies, but this "protective pet effect" is debated. Factors like pet type, exposure details, and genetics may influence outcomes, with immune system changes being a potential mechanism.
Area of Science:
- Immunology
- Allergology
- Pediatrics
Background:
- Pet exposure is a known trigger for allergies and asthma in sensitized individuals.
- Recent research suggests early childhood pet exposure may prevent allergic diseases.
- The
- protective pet effect
Purpose of the Study:
- To explore the controversial concept of a protective effect of pet exposure in early childhood against allergic diseases.
- To identify factors influencing the protective pet effect.
- To investigate potential mechanisms behind this effect.
Main Methods:
- Review of recent epidemiological and immunological studies on pet exposure and allergic diseases.
- Analysis of factors such as pet type, exposure timing, duration, intensity, and host genetics.
- Exploration of proposed immunological mechanisms.
Main Results:
- Evidence suggests early pet exposure may reduce the risk of allergic sensitization, allergic rhinitis, asthma, and atopic dermatitis.
- Findings are not universally consistent, with some studies indicating pet exposure promotes allergic disease.
- Potential influencing factors include pet species, exposure patterns, and genetic predispositions.
Conclusions:
- The protective effect of early pet exposure on allergic disease development is a complex and debated topic.
- Multiple factors likely modulate this effect, necessitating further research.
- Investigating immune system alterations, tolerance induction, and innate immune stimulation is crucial for understanding the mechanisms.
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