Alpha-1 antitrypsin (AAT) deficiency is a condition in which the body does not make enough of a protein that protects the lungs and liver from damage. The condition can lead to emphysema and
Alpha-1 antitrypsin (AAT) is a type of protein called a "protease inhibitor." It is made in the liver and it works to protect the lungs and liver.
AAT deficiency means there is not enough of this protein in the body....Read more