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Antibacterials in Personal-Care Products Linked to Allergy Risk in Children

Posted Jun 19 2012 5:38pm

Exposure to common antibacterial chemicals and preservatives found in soap, toothpaste, mouthwash and other personal-care products may make children more prone to a wide range of food and environmental allergies, according to new research from Johns Hopkins Children’s Center.

Results of the NIH-funded study are published online ahead of print June 18 in the Journal of Allergy and Clinical Immunology.

Using existing data from a national health survey of 860 children ages 6 to 18, Johns Hopkins researchers examined the relationship between a child’s urinary levels of antibacterials and preservatives found in many personal-hygiene products and the presence of IgE antibodies in the child’s blood. IgE antibodies are immune chemicals that rise in response to an allergen and are markedly elevated in people with allergies.

“We saw a link between level of exposure, measured by the amount of antimicrobial agents in the urine, and allergy risk, indicated by circulating antibodies to specific allergens,” said lead investigator Jessica Savage, M.D., M.H.S., an allergy and immunology fellow at Hopkins.

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