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  1. Alpha-1 Antitrypsin Deficiency: Causes, Symptoms & Treatment

    What is Alpha-1 antitrypsin deficiency? Alpha-1 antitrypsin deficiency (sometimes just called “Alpha-1”) is an inherited genetic disorder that causes low levels of a protein (AAT) that …

  2. Alpha-1 antitrypsin deficiency - Wikipedia

    Alpha-1 antitrypsin deficiency (A1AD or AATD) is a genetic disorder that may result in lung disease or liver disease. [1] Onset of lung problems is typically between 20 and 50 years of …

  3. Alpha-1-antitrypsin deficiency - Symptoms and causes

    Dec 6, 2025 · Learn about the symptoms and risk factors of alpha-1-antitrypsin deficiency, a condition passed down in families, that can affect the lungs, liver or both.

  4. Alpha-1 Antitrypsin (AAT) Deficiency - WebMD

    Nov 25, 2025 · Learn about the causes, symptoms, and treatment for alpha-1 antitrypsin (AAT) deficiency, along with questions for your doctor and tips for living with it.

  5. Alpha 1-antitrypsin deficiency | About the Disease | GARD

    Alpha-1 antitrypsin deficiency (AATD) is an inherited disease that causes an increased risk of having chronic obstructive pulmonary disease (COPD), liver disease, skin problems …

  6. What is Alpha-1? Learn More Here - Alpha-1 Foundation

    Learn about Alpha-1 Antitrypsin Deficiency, its causes, symptoms, and available resources to improve quality of life.

  7. Alpha-1 antitrypsin deficiency: MedlinePlus Genetics

    Alpha-1 antitrypsin deficiency is an inherited disorder that may cause lung disease and liver disease. The signs and symptoms of the condition and the age at which they appear vary …

  8. Alpha-1 antitrypsin deficiency - Penn Medicine

    Aug 19, 2024 · AAT deficiency means there is not enough of this protein in the body. It is caused by a genetic variant. The condition is most common among Europeans and North Americans …

  9. Learn About Alpha-1 Antitrypsin Deficiency - American Lung Association

    Mar 12, 2025 · Alpha- antitrypsin deficiency is a rare genetic disorder that is passed on in families and primarily affects the lungs and liver. Rarely, the skin may be affected as well. When this …

  10. Alpha-1 Antitrypsin Deficiency - UChicago Medicine

    Alpha-1 antitrypsin deficiency (sometimes shortened to Alpha-1) is an inherited condition where your body cannot produce enough of the Alpha-1 antitrypsin protein. This protein is produced …