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Why Should People Be Tested for Alpha-1 Antitrypsin?
Have you ever wondered how you breathe so easily? It is the efforts of our lungs and the air sacs present inside them that help in the exchange of gasses. However, during this process, the lungs are exposed to several pollutants every day. Needless to say, various protective mechanisms in our body prevent damage to our lungs from these pollutants. One such compound is alpha-1 antitrypsin. This protein prevents the gathering of white blood cells inside our lungs. As a result, this prevents the collapse of our lungs' air sacs. This enzyme is produced in our body and helps protect our lungs.
Alpha-1 antitrypsin deficiency (AATD) is a genetic disease that causes either a defective production or a low level of AAT in our body. Any problem in SERPINA1 is responsible for this problem. Generally, such genetic diseases are very rare. However, a lot of patients from Europe and America suffer from this condition. According to recent data, one out of 2000 to 6000 individuals in the world suffers from this condition. Any individual from Europe or America has a higher chance of getting this disease as almost one out of 25 people of European descent suffer from this. Even every one out of 3,500 people in the U.S. suffers from this disorder.
This is an inherited disease that is passed on from parents to children. That is why if either one of your parents suffers from this condition, you might get this genetic disease.
In a nutshell, if you have a family history of AATD or you are someone from the Western world, you should be tested for AATD.
Who Should Be Tested for Alpha-1 Antitrypsin?
If you are suffering from AATD, you will develop a breathing problem at an early age. Usually, by the age of 45, you will face problems like breathing difficulties, lung infections, repeated coughing, and sneezing. Gradually, these symptoms get worse. In severe cases, you might suffer from severe lung issues like chronic obstructive pulmonary disorder (COPD, a disease in which the airway is damaged and blocked, or emphysema, a prolonged lung disease that causes damage to the air sacs).
Our liver produces AAT. However, if AAT production is very low or defective, it might affect your liver. That is why, if you are suffering from AATD, you might encounter gut problems, too. These problems may lead to fatal conditions like liver failure.
The following are the reasons for getting an alpha-1 antitrypsin test,
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If any of your parents are suffering from this disease or any of your close relatives are affected by this disease.
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If you are feeling lung problems like frequent lung infections, repeated breathing problems, and wheezing at an early age without any obvious reasons.
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You might also experience gut problems like indigestion and abdominal pain. If your condition is serious, you might see your skin turning yellowish or blood is present in your poops.
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If you are getting treatment for AATD, tests might be useful to assess your condition.
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Test results will help your doctors to know if you are suffering from any fatal conditions or not.
What Are the Common Tests for Diagnosing Alpha-1 Antitrypsin Deficiency?
Alpha-1 antitrypsin screening includes various tests to detect its normal range and its normal functioning in our body. These tests are;
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Blood Test for AAT Levels: This test can detect the level of AAT in our body. The alpha-1 antitrypsin test normal range is 20 to 53 micromoles per liter in our body. If the serum level of AAT is less than 11 micromoles per liter in your body, it indicates you are suffering from alpha-1 antitrypsin deficiency (AATD).
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Genetic Testing: These tests are the most authentic and can pinpoint a specific cause of the problem. Your blood sample is used for genetic testing. There are two main kinds of genetic tests: comprehensive genomic testing and gene-targeted testing. Comprehensive testing is usually performed when AATD is suspected, but the patient does not display the usual symptoms, whereas gene-targeted testing focuses on specific genes linked to the disease.
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Imaging Tests: As already told, AATD damages your lungs and liver more than anything else. As a result, your doctor needs to assess how damaged your liver and lungs are. Chest X-rays are the most common tests that are done to know the condition of your lungs. Also, doctors prescribe other tests like MRI (magnetic resonance imaging) and CT-scan (computed tomography) to know the extent of the damage in the lungs. For liver issues, ultrasonography of the abdomen is the go-to test for doctors. In severe cases, they might ask you for a CT scan of the abdomen.
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Pulmonary Function Tests: These tests can detect the functional capacity of your lungs. As a result, doctors can identify the functional efficiency of your lungs. These tests calculate lung parameters like forced expiratory volume in one second (FEV1, a person can forcefully breathe out in the first second, and vital capacity (maximum amount of air a person can breathe out after inhaling fully).
What Are the Different Types of Testing for Patients With Genetic Disorders?
Genetic diseases are difficult to cure and even difficult to identify. That is why doctors use different testing methods to detect these diseases as early as possible. These are;
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Diagnostic and Predisposition Testing: When it came to diagnosing AATD, the focus was mainly on people showing early signs of lung problems. This approach is not very effective as a lot of patients ignore early symptoms. Predisposition testing usually means keeping an eye on family members who have low AAT levels and have been found to carry a gene mutation. This will help to detect any problem as early as possible.
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Screening: Screening can identify AATD at an early age. However, alpha-1 screening before the birth of the baby is advisable. If you or your family have any history of AATD, a screening test for your child is advisable only after the age of eleven. However, you must consult doctors before planning such screening tests for your child.
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Laboratory Diagnosis of AATD: Laboratory tests are the alpha-1 blood test. These tests can calculate the AAT value in your blood. Genetic testing through your blood sample can pinpoint specific genetic problems associated with your condition.
How to Get Tested for Alpha-1 Antitrypsin?
If you are suspected of AATD or any of your family members have AATD, you should immediately consult a doctor. After consulting doctors, you can go for the necessary tests. Blood tests for AAT are similar to the other routine blood tests. Even in regions or countries, home collection of your blood sample is allowed. So, getting a test done for AATD is very easy.
Conclusion:
AATD is a serious medical problem. If you have a family history of AATD, you notice lung or gut problems at a young age. As you grow older, such problems may worsen. However, if you test for AATD at an early age, you can be cautious about your health. Also, proper test results can be useful for your doctors to track your treatment effects.
Key Takeaway:
Early and accurate testing for alpha-1 antitrypsin is necessary. It can help to live a better life and can minimize disease-related complications.
