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We recently described a hitherto unrecognized family of autoantibodies that become unmasked (detectable) subsequent to oxidation–reduction (redox) reactions. These masked redox-reactive autoantibodies are not detectable by using conventional immunoassays. Additional experimentation has demonstrated that autoantibodies in the blood of patients with autoimmune diseases can be masked (become undetectable)...
Blood from healthy donors was found to contain a variety of autoantibodies after being cultured overnight in commercial blood culture bottles. Paradoxically some autoantibodies in the blood of patients with autoimmune diseases were no longer detectable when similarly cultured. By a process of elimination it was revealed that hemin was responsible for the conversion of antibody-negative blood to antibody-positive...
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