The hypersensitive reaction in response to a type I allergen which produces characterlstlc symptoms is described as allergic response. Which of the following immunoglobulin is mostly involved in this type of cellular response?

IgA

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IgM

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IgD

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IgE

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Solution

The correct option is D IgE
Hypersensitivity reactions is an allergic reaction that is the overreaction of the immune system. There are four types of hypersensitivity reactions type 1 to type 4. Type 1 is an immediate reaction and is mediated by the immunoglobin IgE as the primary component is the mast cell or the basophil and IgE have very high affinity to the receptors of mast cells or basophils. Thus, the correct answer is option D.

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