Journal Highlight: Expanded newborn screening by mass spectrometry: New tests, future perspectives

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  • Published: Jan 11, 2016
  • Author: spectroscopyNOW
  • Channels: Base Peak
thumbnail image: Journal Highlight: Expanded newborn screening by mass spectrometry: New tests, future perspectives
The success of MS/MS in newborn screening programs is discussed with several examples of its use in second-tier tests and confirmatory testing.

Expanded newborn screening by mass spectrometry: New tests, future perspectives

Mass Spectrometry Reviews, 2016, 35, 71-84
Daniela Ombrone, Elisa Giocaliere, Giulia Forni, Sabrina Malvagia and Giancarlo la Marca

Abstract: Tandem mass spectrometry (MS/MS) has become a leading technology used in clinical chemistry and has shown to be particularly sensitive and specific when used in newborn screening (NBS) tests. The success of tandem mass spectrometry is due to important advances in hardware, software and clinical applications during the last 25 years. MS/MS permits a very rapid measurement of many metabolites in different biological specimens by using filter paper spots or directly on biological fluids. Its use in NBS give us the chance to identify possible treatable metabolic disorders even when asymptomatic and the benefits gained by this type of screening is now recognized worldwide. Today the use of MS/MS for second-tier tests and confirmatory testing is promising especially in the early detection of new disorders such as some lysosomal storage disorders, ADA and PNP SCIDs, X-adrenoleucodistrophy (X-ALD), Wilson disease, guanidinoacetate methyltransferase deficiency (GAMT), and Duchenne muscular dystrophy. The new challenge for the future will be reducing the false positive rate by using second-tier tests, avoiding false negative results by using new specific biomarkers and introducing new treatable disorders in NBS programs.

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