Immunoglobulin E (IgE)

There are five immunoglobulin classes (isotypes) of antibody molecules found in serum: IgG, IgM, IgA, IgE, and IgD.

• IgA (immunoglobulin A)
• IgD (immunoglobulin D)
• IgE (immunoglobulin E)
• IgG (immunoglobulin G)
• IgM (immunoglobulin M)

what is immunoglobulin for

The relationship between IgE antibodies or immunoglobulin E and thyroid is that an increased level of these antibodies can lead to Grave's disease. It is believed that the immunoglobulin antibodies actually lead to this thyroid disorder.

Elevated Immunoglobulin levels typically indicate an current infection in the body. What kind of infection is determined by the type of immunoglobulins that are elevated. Immunoglobulins are membrane bound to naive B cell. An antibody is a secreted form of immunoglobulin that is used to fight infection directly or indirectly in various ways. Elevated immunoglobulin levels could also be a result of some lymphomas, especially if one particular immunoglobulin is extremely elevated over the others due to clonal expansion of the mylomal tumor.