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DNA diagnosis and identification of carriers of infantile and juvenile neuronal ceroid lipofuscinoses
1997 (English)In: Neuropediatrics, ISSN 0174-304X, Vol. 28, no 1, 63-66 p.Article in journal (Refereed) Published
Abstract [en]

The recent identification of the genes and the mutations underlying infantile neuronal ceroid lipofuscinosis and juvenile onset neuronal ceroid lipofuscinosis facilitates specific DNA-based diagnostics for the disorders. We have developed a solid-phase minisequencing test for the identification of the major Finnish INCL mutation, an A to T transversion at nucleotide position 364 of the palmitoyl protein thioesterase gene on chromosome 1. This test has been applied for prenatal diagnosis and for identification of disease carriers in INCL families. For population-based screening for INCL carriers the coverage of the test would be 98%. In addition, by combining the solid-phase minisequencing test with whole genome preamplification, we have developed a procedure that allows reliable identification of the INCLFin-mutation in single blastomeres from in-vitro-fertilized embryos. This method is applicable for preimplantation diagnosis, and thus it offers an alternative to early prenatal diagnosis in the prevention of INCL. A modification of the solid-phase minisequencing test was devised for detection of the major INCL mutation, a 1.02 kb deletion in the CLN3 gene on chromosome 16. The coverage of this test for diagnosis of INCL and identification of carriers is 90% in Finland and > 80% worldwide.

Place, publisher, year, edition, pages
1997. Vol. 28, no 1, 63-66 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-169814DOI: 10.1055/s-2007-973671PubMedID: 9151326OAI: oai:DiVA.org:uu-169814DiVA: diva2:507777
Available from: 2012-03-06 Created: 2012-03-06 Last updated: 2012-04-10Bibliographically approved

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Syvänen, Ann-Christine
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