FDA approves genetic test that screens infants for predictors of mental disabilities
By Matthew Perrone,
Associated Press
| 01. 17. 2014
WASHINGTON -- The Food and Drug Administration on Friday cleared a first-of-a-kind blood test that can help diagnose mental disabilities in babies by analyzing their genetic code.
The laboratory test from Affymetrix detects variations in patients' chromosomes that are linked to Down syndrome, DiGeorge syndrome and other developmental disorders. About 2 to 3 per cent of U.S. children have some sort of intellectual disability, according to the National Institutes of Health.
The test, known as the CytoScan Dx Assay, is designed to help doctors diagnose children's disabilities earlier and get them appropriate care and support. It is not intended for prenatal screening or for predicting other genetically acquired diseases and conditions, such as cancer.
While there are already genetic tests used to detect conditions like Down's syndrome, doctors usually have to order them individually and they can take several days to develop. Pediatricians said Friday that Affymetrix's test should offer a faster, more comprehensive screening approach. Dr. Annemarie Stroustrup stressed that such tests are generally only used after children exhibit certain physical or behavioural signs that suggest a disorder.
"When...
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