Alpha-1 antitrypsin is a protein produced by the liver that helps protect the lungs from damage by enzymes called proteases. It is responsible for inhibiting the activity of an enzyme called neutrophil elastase, which can cause destruction of lung tissue if not properly regulated.
What happens with an alpha-1 antitrypsin deficiency?
An alpha-1 antitrypsin deficiency occurs when there is a lack or dysfunction of this protein. This deficiency can lead to the accumulation of neutrophil elastase in the lungs, causing emphysema, a progressive lung condition characterized by the destruction of the alveoli, the tiny air sacs in the lungs. It can also lead to liver disease, as the abnormal protein can build up in the liver and cause damage.
Signs of alpha-1 antitrypsin deficiency can vary from person to person. In some cases, individuals may not display any symptoms, while in others, symptoms may include shortness of breath, wheezing, chronic cough, recurring respiratory infections, and liver problems such as jaundice or cirrhosis. It is important to note that not everyone with an alpha-1 antitrypsin deficiency will experience symptoms.
To diagnose an alpha-1 antitrypsin deficiency, a doctor may perform a blood test to measure the levels of alpha-1 antitrypsin in the blood. Genetic testing may also be conducted to identify specific gene mutations associated with the deficiency. In some cases, a lung function test may be done to assess lung function and detect any abnormalities.
The treatment for alpha-1 antitrypsin deficiency aims to manage symptoms and slow down the progression of lung and liver disease. This may include lifestyle changes such as avoiding smoking and environmental pollutants, as well as vaccinations to prevent respiratory infections. Supplemental alpha-1 antitrypsin protein therapy may also be recommended to increase levels of the protein in the body. In severe cases, lung transplantation or liver transplantation may be necessary. It is important for individuals with this deficiency to work closely with their healthcare providers to develop an appropriate treatment plan tailored to their specific needs.
