Reducing the likelihood of allergies later in life
During early life, infants can be susceptible to developing food allergies. Factors influencing this include family history, gender, ethnicity, pre-existing atopic dermatitis and genetic predisposition
Simon, A. K., Hollander, G. A., & McMichael, A. (2015). Evolution of the immune system in humans from infancy to old age. In Proceedings of the Royal Society B: Biological Sciences. https://doi.org/10.1098/rspb.2014.3085
. Because the infant immune system is still immature and unbalanced
Simon, A. K., Hollander, G. A., & McMichael, A. (2015). Evolution of the immune system in humans from infancy to old age. In Proceedings of the Royal Society B: Biological Sciences. https://doi.org/10.1098/rspb.2014.3085
, and the intestinal wall may be more permeable in early life, enhanced exposure to food allergens may occur during this time
Groschwitz, K. R., & Hogan, S. P. (2009). Intestinal barrier function: Molecular regulation and disease pathogenesis. In Journal of Allergy and Clinical Immunology. https://doi.org/10.1016/j.jaci.2009.05.038
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In these first years, a familiar pattern of allergy development has been recognized and is referred to as the ’allergic march’. The allergic march hypothesises how different allergies consecutively manifest over time. For example, it has been shown that atopic eczema and food allergy usually manifest during infancy, while asthma incidence peaks around the age of five and rhinitis as late as ten years of age
Barnetson, R. S. C., & Rogers, M. (2002, June 8). Childhood atopic eczema. British Medical Journal. BMJ Publishing Group. https://doi.org/10.1136/bmj.324.7350.1376
. Because halting this pattern may benefit health later in life, CMA management in the early years is important.