Identification of Genetic Risk Factors for Complex Disorders by Studying Patients with Associated Balanced Chromosomal Rearragements

Reference:
NGFN2

Abstract:
Associations between BCRs and disorders reported in the questionnaire are considered as probably real if the disorder co-segregates with the BCR in a family; if one breakpoint is located at a previously identified locus for the respective disorder; or if several unrelated patients with the same disorder have a breakpoint in the same chromosome region. A pilot study in the Berlin area revealed several probands fulfilling these criteria (Tab. 1). One example is a patient with psoriasis and a breakpoint in 4q31 within a major locus for psoriasis as determined by a recent meta-analysis of linkage data. In this case, a plausible functional candidate gene for psoriasis has been shown to be affected by the translocation. We also investigate patients with amyotrophic lateral sclerosis carrying constitutional balanced chromosome rearrangements (6;7). Likewise, chromosomal breakpoints of two individuals with dyslexia, both carrying familial balanced chromosomal rearrangements that co-segregate with the disorder, are currently under study. Chromosomal breakpoints of a familial balanced translocation that co-segregates with malignancies of the lymphatic system involving chromosomes 1 and 13 are also being examined.

PROJECT DETAILS 

beginning: 2005.

end: 2008.

Country of research: Germany

Counry of funding source: Germany

Funding organization: German Federal Ministry of Education and Research

Financing: NATIONAL FUNDINGS – 0 €

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