Mutation Spectra in Autosomal Dominant and Recessive Retinitis Pigmentosa in Northern Sweden

  • Irina Golovleva
  • Linda Köhn
  • Marie Burstedt
  • Stephen Daiger
  • Ola Sandgren
Chapter
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 664)

Abstract

Retinal degenerations represent a heterogeneous group of disorders affecting the function of the retina. The frequency of retinitis pigmentosa (RP) is 1/3500 worldwide, however, in northern Sweden it is 1/2000 due to limited migration and a ‘founder’ effect. In this study we identified genetic mechanisms underlying autosomal dominant and recessive RP present in northern Sweden. Several novel mutations unique for this region were found. In an autosomal recessive form of RP, Bothnia dystrophy caused by mutations in the RLBP1 gene, bi-allelic mutations R234W, M226K and compound heterozygosity, M226K+R234W was detected.

In dominant form of RP mapped to 19q13.42 a 59 kb genomic deletion including the PRPF31 and three other genes was found.

These data provide additional information on the molecular mechanisms of RP evolvement and in the future might be useful in development of therapeutic strategies. Identification of the disease-causing mutations allowed introducing molecular genetic testing of the patients and their families into the clinical practice.

Keywords

Migration Attenuation Codon Recombination Retina 

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Irina Golovleva
    • 1
  • Linda Köhn
    • 1
  • Marie Burstedt
    • 2
  • Stephen Daiger
    • 3
  • Ola Sandgren
    • 2
  1. 1.Department of Medical and Clinical Genetics, Medical BiosciencesUmeå UniversityUmeåSweden
  2. 2.Department of Ophthalmology, Clinical SciencesUmeå UniversityUmeåSweden
  3. 3.The University of Texas Health Science Center Houston, Human Genetics CenterHoustonUSA

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