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Humoral immune response to acetaldehyde adducts in alcoholic patients
Abstract:
Sera of alcoholic patients were found to contain antibodies to acetaldehyde adducts as determined by immunodiffusion. Differences in antibody levels were determined by hemagglutination with acetaldehyde adduct-conjugated red blood cells. Anti-acetaldehyde adduct immunoglobulin titers in 21 healthy, non-drinking individuals ranged from 10-80, whereas 25 of 34 alcoholics had titers of 160 or above (P less than 0.001). Rabbit-polyclonal and mouse-monoclonal antibodies against acetaldehyde adducts did not agglutinate red blood cells of alcoholic patients, indicating that no detectable acetaldehyde-altered epitopes are present on erythrocyte membranes. These results suggest that acetaldehyde-induced immunogenic determinants can initiate a humoral immune response which may differentiate alcoholics from non-alcoholics.
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