Alpha 1-antitrypsin deficiency

Patent Granted Alpha 1-antitrypsin deficiency (α1-antitrypsin deficiency, A1AD) is a genetic disorder that causes defective production of alpha 1-antitrypsin (A1AT), leading to decreased A1AT activity in the blood and lungs, and deposition of excessive abnormal A1AT protein in liver cells.[1][2] There are several forms and degrees of deficiency, principally depending on whether the sufferer has one or two copies of the affected gene because it is a co-dominant trait.