alexa Non-invasive prenatal testing for Down syndrome.

Author(s): Twiss P, Hill M, Daley R, Chitty LS

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Abstract Prenatal screening and diagnosis of Down syndrome and other major aneuploidies may be transformed following the identification of cell-free fetal DNA in maternal plasma at the end of the last millennium. Next generation sequencing has enabled the development of tests that accurately predict the presence of fetal trisomies by analysis of cell-free DNA in maternal blood from as early as 10 weeks of gestation. These tests are now widely available in the commercial sector but are yet to be implemented in publicly led health services. In this article we discuss the technical, social, and ethical challenges that these new tests bring. Copyright © 2013 Elsevier Ltd. All rights reserved. This article was published in Semin Fetal Neonatal Med and referenced in

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