Abstract
Although there is evidence to suggest that genetic factors play a major role in the pathogenesis of many of the rheumatic diseases, far less is known of their role in the induction and expression of human autoimmunity resulting from long-term exposure to drugs, chemicals and environmental agents.
Pharmacogenetic factors represent an important source of interindividual variation in response to drugs; most research to date has focused on genetic polymorphism of drug metabolism via N-acetylation, S-methylation or cytochrome P-450-catalyzed oxidation.
In drug-related autoimmunity, there is limited evidence that the host's genetic background plays a major role beyond the expression of autoantibodies.
More recent prospective studies have concentrated on the association of MHC-genes in the expression of autoimmunity and the susceptibility of patients to develop drug-related clinical syndromes.
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