A full Genome Scan for Late Onset Alzheimer's Disease (original) (raw)

Journal Article

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Neuropsychiatrie Genetics Unit, Tenovus Building, University of Wales College of Medicine

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Heath Park Cardiff CF4 4XN

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Fabienne Wavrant-De Vrieze

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Birdsall Building, Mayo Clinic

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4500 San Pablo Road, Jacksonville, FL 32084, USA

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Birdsall Building, Mayo Clinic

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4500 San Pablo Road, Jacksonville, FL 32084, USA

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Departments of Psychiatry and Genetics, Washington University School of Medicine

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4940 Children's Place, St Louis, MO 63110, USA

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Neuropsychiatrie Genetics Unit, Tenovus Building, University of Wales College of Medicine

,

Heath Park Cardiff CF4 4XN

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,

Neuropsychiatrie Genetics Unit, Tenovus Building, University of Wales College of Medicine

,

Heath Park Cardiff CF4 4XN

Search for other works by this author on:

,

Neuropsychiatrie Genetics Unit, Tenovus Building, University of Wales College of Medicine

,

Heath Park Cardiff CF4 4XN

Search for other works by this author on:

,

Neuropsychiatrie Genetics Unit, Tenovus Building, University of Wales College of Medicine

,

Heath Park Cardiff CF4 4XN

Search for other works by this author on:

,

Neuropsychiatrie Genetics Unit, Tenovus Building, University of Wales College of Medicine

,

Heath Park Cardiff CF4 4XN

Search for other works by this author on:

,

Neuropsychiatrie Genetics Unit, Tenovus Building, University of Wales College of Medicine

,

Heath Park Cardiff CF4 4XN

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Accepted:

20 November 1998

Published:

01 February 1999

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Patrick Kehoe, Fabienne Wavrant-De Vrieze, Richard Crook, William S. Wu, Peter Holmans, Iain Fenton, Gillian Spurlock, Nadine Norton, Hywel Williams, Nigel Williams, Simon Lovestone, Jordi Perez-Tur, Mike Hutton, Marie-Christine Chartier-Harlin, Shantia Shears, Kimberly Roehl, Jeremy Booth, Wendy Van Voorst, Dzanan Ramic, Julie Williams, Alison Goate, John Hardy, Michael J. Owen, A full Genome Scan for Late Onset Alzheimer's Disease, Human Molecular Genetics, Volume 8, Issue 2, February 1999, Pages 237–245, https://doi.org/10.1093/hmg/8.2.237
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Abstract

We have genotyped 292 affected sibling pairs (ASPs) with Alzheimer's disease (AD) according to NINCDS-ADRDA diagnostic criteria and with onset ages of ≥65 years using 237 microsatellite markers separated by an average distance of 16.3 cM. Data were analysed by SPLINK and MAPMAKER/SIBS on the whole sample of 292 ASPs and subsets of 162 ASPs where both members possessed an apolipoprotein E (APOE) ε4 allele and 63 pairs where neither possessed an ε4 allele. Sixteen peaks with a multipoint lod score (MLS) >1 either in the whole sample, the ε4-positive or-negative subgroups were observed on chromosomes 1 (two peaks), 2, 5, 6, 9 (two peaks), 10 (two peaks), 12, 13, 14, 19, 21 and X (two peaks). Simulation studies revealed that these findings exceeded those expected by chance, although many are likely to be false positives. The highest lod scores on chromosomes 1 (MLS 2.67), 9 (MLS 2.38), 10 (MLS 2.27) and 19 (MLS 1.79) fulfil Lander and Kruglyak's definition of ‘suggestive’ in that they would be expected to occur by chance once or less per genome scan. Several other peaks were only marginally less significant than this, in particular those on chromosomes 14 (MLS 2.16), 5 (MLS 2.00), 12, close to α2-macroglobulin (MLS 1.91), and 21, close to amyloid precursor protein (MLS 1.77). This is the largest genome scan to date in AD and shows for the first time that this is a genetically complex disorder involving several, perhaps many, genes in addition to APOE. Moreover, our data will be of interest to those hoping to identify positional candidate genes using information emerging from neurobiological studies of AD.

© 1999 Oxford University Press

Topic:

• alleles
• alzheimer's disease
• lod score
• age of onset
• amyloid beta-protein precursor
• apolipoprotein e
• chromosomes
• genes
• genome
• macroglobulins
• microsatellite repeats
• alveolar soft part sarcoma
• relationship - sibling
• diagnosis
• advanced sleep phase syndrome
• false-positive results
• candidate disease gene
• alzheimer disease, late onset
• adult sensory processing scale

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