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2005 | 46 | 3 |

Tytuł artykułu

Genotype-phenotype correlation in a SCA1 family: anticipation without CAG expansion

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
We report on a family with spinocerebellar ataxia type 1 (SCA1), in which the age at onset and the severity of the disease do not correlate with the number of CAG repeat units. Although a marked anticipation was observed in the proband, it was not a consequence of an expansion of the CAG tract. None of the expanded alleles contained CAT interruptions. The pathologic expansion in this family was stable during the paternal but not maternal transmission, where it expanded by one trinucleotide and unexpectedly did not lead to anticipation. Our observations suggest that factors other than the length of the CAG repeat play a considerable role in determination of the disease course.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

46

Numer

3

Opis fizyczny

p.325-328,fig.,ref.

Twórcy

autor
  • RIKEN Brain Science Institute, Wako-shi, 351-0198, Saitama, Japan
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Bibliografia

  • Bauer P, Kraus J, Matoska V, Brouckova M, Zumrova A, Goetz P, 2004a. Large de novo expansion of CAG repeats in patient with sporadic spinocerebellar ataxia type 7. J Neurol 251: 1023-1024.
  • Bauer PO, Zumrova A, Matoska V, Mitsui K, Goetz P, 2004b. Can ataxin-2 be down-regulated by allele-specific de novo DNA methylation in SCA2 patients? Med Hypotheses 63: 1018-1023.
  • Bauer PO, Zumrova A, Matoska V, Marikova T, Krilova S, Boday A, et al. 2005. Absence of spinocerebellar ataxia type 3/Machado-Joseph disease within ataxic patients in the Czech population. Eur J Neurol, in press.
  • Burk K, Abele M, Fetter M, Dichgans J, Skalej M, Laccone F, et al. 1996. Autosomal dominant cerebellar ataxia type I clinical features and MRI in families with SCA1, SCA2 and SCA3. Brain 119: 1497-1505.
  • Burk K, Globas C, Bosch S, Klockgether T, Zuhlke C, Daum I, et al. 2003. Cognitive deficits in spinocerebellar ataxia type 1,2, and 3. J Neurol 250: 207-211.
  • Cancel G, Abbas N, Stevanin G, Durr A, Chneiweiss H, Neri C, et al. 1995. Marked phenotypic heterogeneity associated with expansion of a CAG repeat sequence at the spinocerebellar ataxia 3/Machado-Joseph disease locus. Am J Hum Genet 57: 809-816.
  • Cancel G, Durr A, Didierjean O, Imbert G, Burk K, Lezin A, et al. 1997. Molecular and clinical correlations in spinocerebellar ataxia 2: a study of 32 families. Hum Mol Genet 6: 709-715.
  • Dubourg O, Durr A, Cancel G, Stevanin G, Chneiweiss H, Penet C, et al. 1995. Analysis of the SCA1 CAG repeat in a large number of families with dominant ataxia: clinical and molecular correlations. Ann Neurol 37: 176-180.
  • Durr A, Chneiweiss H, Khati C, Stevanin G, Cancel G, Feingold J, et al. 1993. Phenotypic variability in autosomal dominant cerebellar ataxia type I is unrelated to genetic heterogeneity. Brain 116: 1497-1508.
  • Matsuyama Z, Izumi Y, Kameyama M, Kawakami H, Nakamura S, 1999. The effect of CAT trinucleotide interruptions on the age at onset of spinocerebellar ataxia type 1 (SCA1). J Med Genet 36: 546-548.
  • Miller SA, Dykes DD, Polesky HF, 1988. A simple salting out procedure for extracting DNA from human nucleated cells. Nucleic Acids Res 16: 1215.
  • Orr HT, Chung MY, Banfi S, Kwiatkowski TJ, Jr, Servadio A, Beaudet AL, et al. 1993. Expansion of an unstable trinucleotide CAG repeat in spinocerebellar ataxia type 1. Nat Genet 4: 221-226.
  • Schols L, Amoiridis G, Buttner T, Przuntek H, Epplen JT, Riess O,1997. Autosomal dominant cerebellar ataxia: phenotypic differences in genetically defined subtypes? Ann Neurol 42: 924-932.
  • Stevanin G, Durr A, Brice A, 2000. Clinical and molecular advances in autosomal dominant cerebellar ataxias: from genotype to phenotype and physiopathology. Eur J Hum Genet 8: 4-18.
  • Suzuki Y, Sasaki H, Wakisaka A, Takada A, Yoshiki T, Iwabuchi K, et al. 1995. Spinocerebellar ataxia 1 (SCA1) in the Japanese: analysis of CAG trinucleotide repeat expansion and instability of the repeat for paternal transmission. Jpn J Hum Genet 40: 131-143.
  • Zoghbi HY, Orr HT, 1995. Spinocerebellar ataxia type 1. Semin Cell Biol 6: 29-35.
  • Sasaki H, Fukazawa T, Yanagihara T, Hamada T, Shima K, Matsumoto A, et al. 1996. Clinical features and natural history of spinocerebellar ataxia type 1. Acta Neurol Scand 93: 64-71.

Typ dokumentu

Bibliografia

Identyfikatory

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bwmeta1.element.agro-article-dbef530f-798b-4784-a65a-d387cb84a75d
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