Normal distribution of acetylation phenotypes in systemic lupus erythematosus

Abstract
Previous reports have indicated that idiopathic systemic lupus erythematosus (SLE), like drug‐induced lupus, is more frequent in “slow” hepatic acetylators. Using dapsone acetylation rate to determine phenotypes, we found that of the 18 SLE patients studied, 9 were fast acetylators, 8 were slow, and 1 was indeterminate. This result (53% fast) is similar to acetylator phenotypes in our normal controls (50% fast) and in the population at large (52%).

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