Giampietro et al., 2001; Sicherer et al., 2001), and a substantial number of infant formulas (most EHF) have met this criterion for hypoallergenicity. Even though they note that EHF contain residual proteins and may provoke allergic reactions in infants with CMA, the AAP currently recommends these formulas as alternatives for infants with CMA stating that at least 90% of these infants will tolerate the formula (AAP, 2000).
Newer technologies, such as genetic modification, are being developed to reduce allergenicity by removing, silencing, or modifying the genes for specific allergenic proteins within foods (Tada et al., 1996; Herman et al., 2003; Dodo et al., 2005; Gilissen, 2005). To date, however, there is no example of a food allergen that has been rendered completely devoid of allergenic activity using these methods. This is due to the fact that each food contains a number of allergenic proteins, each with multiple allergenic epitopes. Unless these methods can eliminate all of these proteins, or modify all allergenic epitopes, the remaining proteins or epitopes could still elicit a reaction in sensitive individuals.
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