Expanded genome scan in extended families with age-related macular degeneration.

Expanded genome scan in extended families with age-related macular degeneration. Research Abstract Details 

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Expanded genome scan in extended families with age-related macular degeneration. Abstract Text:

Sandra Barral,Peter J Francis,Dennis W Schultz,Mitchell B Schain,Chad Haynes,Jacek Majewski,Jurg Ott,Ted Acott,Richard G Weleber,Michael L Klein,

PURPOSE: To investigate further the genetic contribution to age-related macular degeneration (AMD), increasing the power of a previous analysis and reproducing the original findings. METHODS: A large cohort of families with this condition was assembled, and an expanded genome scan was performed with 556 microsatellite markers. In 2003, the results were reported of a genome-wide linkage analysis of 70 of these pedigrees. Members of 51 new families have now been ascertained and many of the original pedigrees expanded. Parametric and nonparametric linkage analyses were performed with a denser map of markers. In addition, analyses were performed with the sample stratified by age at ascertainment and by two major advanced phenotypes for the disease: neovascular AMD (choroidal neovascularization) and geographic atrophy. RESULTS: The results corroborate the macular degeneration-susceptibility loci consistently reported by the authors and others in genome-wide scans. New loci were identified, including the finding of a two-point HLOD of 3.70 at 6q25.2. CONCLUSIONS: The results suggest that the use of families enriched in predisposition to AMD has legitimacy. Genetic analyses of a genome-wide scan performed on our large cohort of families add further confirmatory evidence that susceptibility loci lie on 1q, 3p, 9q, and 10q. Furthermore, new loci have been identified, including a locus on 6q.

Expanded genome scan in extended families with age-related macular degeneration. Publishing Authors By Initials

S Barral,PJ Francis,DW Schultz,MB Schain,C Haynes,J Majewski,J Ott,T Acott,RG Weleber,ML Klein,

For similar investigative techniques: genetic techniques: pedigree research abstracts see: investigative techniques: genetic techniques: pedigree research

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Expanded genome scan in extended families with age-related macular degeneration. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Investigative ophthalmology & visual science

VOLUME: 47

Page Numbers: 5453-9

Journal Abbreviation: Invest. Ophthalmol. Vis. Sci.

ISSN: 0146-0404

DAY: 3

MONTH: Dec

YEAR: 2006

Expanded genome scan in extended families with age-related macular degeneration. Information

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LANGUAGE: eng

NlmUniqueID: 7703701

Expanded genome scan in extended families with age-related macular degeneration. Keywords Mesh Terms:

KEYWORDS: Pedigree

MESH TERMS: genetics

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Grant and Affiliation Information for Expanded genome scan in extended families with age-related macular degeneration.

AFFILIATION: Laboratory of Statistical Genetics, Rockefeller University, New York, New York, USA.

Country: United States

AGENCY: United States NHGRI

GRANT: HG00008

ACRONYM: HG

MEDLINETA: Invest Ophthalmol Vis Sci

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