Alpha-1 antitrypsin deficiency-associated liver disease: From understudied disorder to the poster child of genetic medicine.

Abstract excerpt

Alpha-1 antitrypsin deficiency (AATD) constitutes an inborn disorder arising due to mutations in alpha-1 antitrypsin (AAT), a secreted protease inhibitor produced primarily in hepatocytes. It leads to diminished serum AAT levels, and this loss-of-function predisposes to chronic obstructive pulmonary disease and lung emphysema. The characteristic Pi*Z mutation results in hepatic Z-AAT accumulation. In its...

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