to find out whether the increased immunoglobulin a ( iga ) levels commonly reported in patients with alcoholic liver disease ( ald ) are part of the immune response to gut-derived endotoxin antigen , an enzyme-linked immunoabsorbent assay was used to measure serum levels of antibodies to lipid a ( the shared core of various lipopolysaccharides and the biologically active component of endotoxins ) in patients with various diseases and in controls .
C0301872
immune
C0003320
antigen