Section 169 of Allergy Also known as allergic hypersensitivity,
is the damage to normal tissues, the immune system response. It
is the same on the mechanism of function of the body similar to
the normal defense, but hypersensitivity may have some body
damage. Therefore, the composition of the immune system (see
Section 16) the normal defense of the antibodies, lymphocytes
and other cells are involved in allergic reactions, such as
transfusion reactions, autoimmune diseases, organ transplant
rejection. Most people use the word allergy, refers to
immunoglobulin E (IgE) antibodies in response. IgE antibody
binding with specific cell, including blood circulating
basophils and tissue macrophages. When IgE antibodies and
antigens within these cells when combined, called allergens, may
promote the release of these cells could damage surrounding
tissue chemicals. Almost all substances can be allergens: dust,
pollen, drugs or food, they are used as antigen to stimulate the
body to produce the immune response. Sometime