Journal
JOURNAL OF CLINICAL NEUROSCIENCE
Volume 56, Issue -, Pages 95-+Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jocn.2018.06.050
Keywords
Adult onset hereditary stroke; CADASIL; Cerebral autosomal dominant arteriopathy with subcortical infarcts and Leukoencephalopathy; Hong Kong Chinese; NOTCH3 mutations
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Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is an adult onset hereditary stroke syndrome characterized by recurrent stroke and progressive cognitive impairment caused by NOTCH3 mutations. We report here the clinical and molecular findings of three unrelated Hong Kong Chinese families with CADASIL syndrome. Sanger sequencing of genomic DNA revealed a novel heterozygous variant NM_000435.2(NOTCH3):c.[5903_5904insATAA];[5903_5904=] NP_000426.2:p.(Asp1969*);(Asp1969=) and two previously reported heterozygous mutations NM_000435.2(NOTCH3):c.[328C>T];[1328C=] NP_000426.2:p.[(Arg110Cys)];[(Arg110=)] and NM_000435.2(NOTCH3):c.[580T>A];[580T=] NP_000426.2:p.(Cys194Ser);(Cys194=) in the three families respectively. Molecular basis of CADASIL in these three patients were further established. Genetic analysis provides a reliable method for confirming the diagnosis of CADASIL and enables proper genetic counseling and cascade testing. (C) 2018 Elsevier Ltd. All rights reserved.
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