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  • Title: A novel PCR approach for prenatal detection of the common NEMO rearrangement in incontinentia pigmenti.
    Author: Steffann J, Raclin V, Smahi A, Woffendin H, Munnich A, Kenwrick SJ, Grebille AG, Benachi A, Dumez Y, Bonnefont JP, Hadj-Rabia S.
    Journal: Prenat Diagn; 2004 May; 24(5):384-8. PubMed ID: 15164415.
    Abstract:
    OBJECTIVES: Incontinentia pigmenti (IP) is a rare X-linked dominant genodermatosis that is usually lethal in males in the prenatal period. Largely 80% of cases are accounted for by a large-scale deletion encompassing exons 4 to 10 of the NEMO gene. The aim of this work was to facilitate prenatal diagnosis of IP by devising a novel test for detection of the prevalent NEMO deletion. METHODS: We devised a sensitive and reproducible multiplex PCR test enabling simultaneous amplification of the deleted and wild-type NEMO genes in IP female individuals. RESULTS: Combination of this DNA test, with Xq28 linkage analysis and X-inactivation pattern study enabled us to offer an IP prenatal diagnosis in 15 of the 16 couples at a 50% risk to have an affected offspring. CONCLUSION: A current approach to IP prenatal diagnosis is proposed on the basis of the previously mentioned molecular tools.
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