Leucine Aminopeptidase is an enzyme found in the highest amounts in the liver, but also in smaller amounts in the small intestine and pancreas. Illness or disease in any of these organs can destroy cells, which releases large amounts of LAP into the blood. High blood levels are mainly used to diagnose liver diseases; but high levels are also seen in people with liver or gallbladder conditions or diseases, liver damage caused by medications, illicit drugs or alcohol abuse, or liver cancer.
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