Immune System

1.The first time a person eats a food allergen, the individual will not respond negatively outwardly

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The immune system protects the body from potentially harmful substances by recognizing and responding to antigens or invaders.

When the allergen is eaten, a IgE antibody is formed and attaches itself to cells found in the tissues in cells all over the body

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So, now the body is primed for that allergen if it enters the body again.

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2.When the food allergen enters the body again, the allergen binds to IgE antibodies and sends out signals for the body to release large amounts of histamine

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This causes irritation and swelling in certain areas of the body - an allergic reaction.

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The reactions may be different for each individual

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Some may manifest a mild form of hives and others may develop shortness of breath or anaphylaxis, which could cause death.

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This can be common with severe food allergies or even a bee sting.

Oct 11, 2012