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The effect of hypoallergenic formula on the occurrence of allergic diseases in high risk infants.

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Department of Pediatrics, National Taiwan University Hospital, Taipei, R.O.C.


To study the influence of hypoallergenic milk on the occurrence of allergic diseases, thirty-three high risk, normal full-term newborns were divided into two groups with comparable family allergy score (FAS) and cord serum IgE. Group A consisted of 18 babies fed since birth with regular formula, while group B included 15 babies fed breast milk and/or NAN H.A. (Hypoallergenic infant formula) for the first 6 months of life. Close clinical observations for the appearance of atopic dermatitis, allergic rhinitis and wheezing as well as serial examination of total serum IgE and milk-specific IgE antibodies were done during the first year of life. The results showed: 1) Infants fed regular formula had a higher incidence of moderate to severe atopic dermatitis (AD) and allergic rhinitis (AR) than those fed NAN H.A. (39% vs 13% for AD; and 33% vs 13% for AR), but the difference was not significant. There was no difference in the incidence of wheezing between these two groups; 2) There was no relationship between cord blood IgE and FAS; 3) Neither the cord blood IgE nor FAS influenced the occurrence of allergic diseases and total serum IgE at one year of age; 4) Hypoallergenic milk (NAN H.A.) could support normal growth and development. In conclusion, a higher incidence of moderate to severe AD and AR was found in high risk infants fed regular formula than in those fed hypoallergenic milk. However, a study with a larger number of babies and a longer period of follow-up is needed to obtain a solid conclusion.

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