Hereditary vascular retinopathy, cerebroretinal vasculopathy, and hereditary endotheliopathy with retinopathy, nephropathy, and stroke map to a single locus on chromosome 3p21.1-p21.3

Roel A. Ophoff, Joseph De Young, Susan K. Service, Marijke Joosse, Nathan A. Caffo, Lodewijk A. Sandkuijl, Gisela M. Terwindt, Joost Haan, Arn M.J.M. Van den Maagdenberg, Joanna Jen, Robert W. Baloh, Maria Louise Barilla-LaBarca, Nancy L. Saccone, John P. Atkinson, Michel D. Ferrari, Nelson B. Freimer, Rune R. Frants

Research output: Contribution to journalArticlepeer-review

120 Scopus citations

Abstract

We performed a genomewide search for linkage in an extended Dutch family with hereditary vascular retinopathy associated with migraine and Raynaud phenomenon. Patients with vascular retinopathy are characterized by microangiopathy of the retina, accompanied by microaneurysms and telangiectatic capillaries. The genome search, using a high throughput capillary sequencer, revealed significant evidence of linkage to chromosome 3p21.1-p21.3 (maximum pairwise LOD score 5.25, with D3S1578). Testing of two additional families that had a similar phenotype, cerebroretinal vasculopathy, and hereditary endotheliopathy with retinopathy, nephropathy, and stroke, revealed linkage to the same chromosomal region (combined maximum LOD score 6.30, with D3S1588). Haplotype analysis of all three families defined a 3-cM candidate region between D3S1578 and D3S3564. Our study shows that three autosomal dominant vasculopathy syndromes with prominent cerebroretinal manifestations map to the same 3-cM interval on 3p21, suggesting a common locus.

Original languageEnglish
Pages (from-to)447-453
Number of pages7
JournalAmerican journal of human genetics
Volume69
Issue number2
DOIs
StatePublished - 2001

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