Food allergies are adverse reactions to an otherwise harmless
food or food component that involves an abnormal response of the
body’s immune system to specific proteins in foods. True food allergies
may involve several types of immunological responses,mainly
including IgE-mediated reactions and cell-mediated reactions. The
most common type is the former, also known as immediate hypersensitivity
reactions because symptoms occur within minutes
to a few hours after ingestion of the offending food (Zhang 2004).
Therefore, when fed allergic proteins, the immune system of animals
could produce specific IgE antibodies, and ELISA was carried
out to test their production. The OD values of sera for the OVAgroup
were higher than those of the water group, and they were significantly
different (P/N < 2, Guo 2001). In contrast, the OD values
M230 JOURNAL
Food allergies are adverse reactions to an otherwise harmlessfood or food component that involves an abnormal response of thebody’s immune system to specific proteins in foods. True food allergiesmay involve several types of immunological responses,mainlyincluding IgE-mediated reactions and cell-mediated reactions. Themost common type is the former, also known as immediate hypersensitivityreactions because symptoms occur within minutesto a few hours after ingestion of the offending food (Zhang 2004).Therefore, when fed allergic proteins, the immune system of animalscould produce specific IgE antibodies, and ELISA was carriedout to test their production. The OD values of sera for the OVAgroupwere higher than those of the water group, and they were significantlydifferent (P/N < 2, Guo 2001). In contrast, the OD valuesM230 JOURNAL
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