Do Babies Get Tested for ALD?
ALD, or Adrenoleukodystrophy, is an inherited disorder that affects the nervous system and adrenal glands. It is a rare, but serious, genetic disorder that affects approximately one in every 17,000 people. This condition is especially dangerous in infants, as it can cause severe neurological damage and even death.
For this reason, it is important for parents to understand the risks associated with ALD and to know if their baby is at risk. While genetic testing is the only way to definitively diagnose ALD, there are other tests that can help determine if a baby is at risk.
Screening Tests
Screening tests are used to detect signs and symptoms of ALD in newborns. These tests are non-invasive and do not require any tissue sample. Common screening tests include blood tests, urine tests, and imaging tests.
Blood tests can detect high levels of saturated fatty acids, which are the main component of the myelin sheath that surrounds nerve cells. High levels of these fatty acids can indicate ALD. Urine tests measure the same fatty acids, but provide a more accurate diagnosis. Imaging tests, such as MRI or CT scans, can identify any lesions or other abnormalities in the brain that may indicate ALD.
Genetic Testing
Genetic testing is the only way to definitively diagnose ALD. This type of test looks for mutations in the ABCD1 gene, which is the gene responsible for producing the myelin sheath. If a person has a mutation in this gene, they will have ALD.
It is important to note that genetic testing is not always necessary. If a person is showing signs or symptoms of ALD, but tests negative for the ABCD1 gene, they may still have the disorder. In this case, further testing may be necessary.
Conclusion
It is important for parents to be aware of the risks associated with ALD and to understand the different testing options available. Screening tests can help detect signs and symptoms of the disorder, while genetic testing is the only way to definitively diagnose it. If your baby is at risk for ALD, it is important to speak to your healthcare provider to determine the best course of action.