It includes diseases of the nervous, gastrointestinal, and endocrine systems as well as skin and other connective tissues, eyes blood, and blood vessel. In all of these diseases, the underlying problem is similar - the body's immune system becomes misdirected, attacking the very organs it was designed to protect.
Phadia, now Thermo Fisher Scientific, offers high quality blood tests for the detection of disease-specific autoantibodies of IgG, IgA, and IgM isotypes that aid in the early diagnosis of many autoimmune diseases.