Which one of the following diseases or conditions predisposes a patient to acetaminophen toxicity?
Correct Answer: Alcoholism
Description: The enzyme that produces the toxic NAPQI, CYP2E1, is induced by alcohol. Diabetes (either type 1 or type 2) will not lead to an induction of CYP2E1, nor will pernicious anemia (intrinsic factor deficiency) or obesity (in the absence of alcoholism). Chronic alcoholics have a reduced tolerance for acetaminophen because of the induction of the MEOS, which results in increased levels of CYPE21.
Category:
Biochemistry
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