Molecular genetic analysis of two large kindreds with intracranial aneurysms demonstrates linkage to 11q24-25 and 14q23-31

Ali K. Ozturk, Brian V. Nahed, Mohamad Bydon, Kaya Bilguvar, Ethem Goksu, Gulsah Bademci, Bulent Guclu, Michele H. Johnson, Arun Amar, Richard P. Lifton, Murat Gunel

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Background and Purpose - Both environmental and genetic factors contribute to the formation, growth, and rupture of intracranial aneurysms (IAs). To search for IA susceptibility genes, we took an outlier approach, using parametric genome-wide linkage analysis in extended IA kindreds in which IA is inherited as a simple Mendelian trait. We hereby present the molecular genetic analysis of 2 such families. Methods - For genome-wide linkage analysis, we used a 2-stage approach. First, using gene chips in affected-only analysis, we identified genomic regions that provide maximum theoretical logarithm of odds (lod) scores. Next, to confirm or exclude these candidate loci, we genotyped all available family members, both affected and unaffected, using polymorphic microsatellite markers located within these regions. Results - We obtained significant lod scores of 4.3 and 3.00 for linkage to chromosomes 11q24-25 and 14q23-31, respectively. Conclusions - Molecular genetic analysis of 2 large IA kindreds confirms linkage to chromosome 11q and 14q, which were suggested to contain IA susceptibility genes in a previous study of Japanese sib pairs. Independent identification of these 2 loci strongly suggests that IA susceptibility genes lie within these regions. While demonstrating the genetic heterogeneity of IA, these results are also an important step toward cloning IA genes and ultimately understanding its pathophysiology.

Original languageEnglish (US)
Pages (from-to)1021-1027
Number of pages7
JournalStroke
Volume37
Issue number4
DOIs
StatePublished - Apr 2006
Externally publishedYes

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Intracranial Aneurysm
Molecular Biology
Genes
Chromosomes
Genome
Genetic Heterogeneity
Oligonucleotide Array Sequence Analysis
Microsatellite Repeats
Organism Cloning
Rupture
Growth

Keywords

  • Aneurysm
  • Genetics

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Neuroscience(all)

Cite this

Ozturk, A. K., Nahed, B. V., Bydon, M., Bilguvar, K., Goksu, E., Bademci, G., ... Gunel, M. (2006). Molecular genetic analysis of two large kindreds with intracranial aneurysms demonstrates linkage to 11q24-25 and 14q23-31. Stroke, 37(4), 1021-1027. https://doi.org/10.1161/01.STR.0000206153.92675.b9

Molecular genetic analysis of two large kindreds with intracranial aneurysms demonstrates linkage to 11q24-25 and 14q23-31. / Ozturk, Ali K.; Nahed, Brian V.; Bydon, Mohamad; Bilguvar, Kaya; Goksu, Ethem; Bademci, Gulsah; Guclu, Bulent; Johnson, Michele H.; Amar, Arun; Lifton, Richard P.; Gunel, Murat.

In: Stroke, Vol. 37, No. 4, 04.2006, p. 1021-1027.

Research output: Contribution to journalArticle

Ozturk, AK, Nahed, BV, Bydon, M, Bilguvar, K, Goksu, E, Bademci, G, Guclu, B, Johnson, MH, Amar, A, Lifton, RP & Gunel, M 2006, 'Molecular genetic analysis of two large kindreds with intracranial aneurysms demonstrates linkage to 11q24-25 and 14q23-31', Stroke, vol. 37, no. 4, pp. 1021-1027. https://doi.org/10.1161/01.STR.0000206153.92675.b9
Ozturk, Ali K. ; Nahed, Brian V. ; Bydon, Mohamad ; Bilguvar, Kaya ; Goksu, Ethem ; Bademci, Gulsah ; Guclu, Bulent ; Johnson, Michele H. ; Amar, Arun ; Lifton, Richard P. ; Gunel, Murat. / Molecular genetic analysis of two large kindreds with intracranial aneurysms demonstrates linkage to 11q24-25 and 14q23-31. In: Stroke. 2006 ; Vol. 37, No. 4. pp. 1021-1027.
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AU - Bilguvar, Kaya

AU - Goksu, Ethem

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