Published in:
Open Access
01-12-2009 | Research article
Further analysis of previously implicated linkage regions for Alzheimer's disease in affected relative pairs
Authors:
Elin S Blom, Vilmantas Giedraitis, Sampath Arepalli, Marian L Hamshere, Omanma Adighibe, Alison Goate, Julie Williams, Lars Lannfelt, John Hardy, Fabienne Wavrant-De Vrièze, Anna Glaser
Published in:
BMC Medical Genetics
|
Issue 1/2009
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Abstract
Background
Genome-wide linkage studies for Alzheimer's disease have implicated several chromosomal regions as potential loci for susceptibility genes.
Methods
In the present study, we have combined a selection of affected relative pairs (ARPs) from the UK and the USA included in a previous linkage study by Myers et al. (Am J Med Genet, 2002), with ARPs from Sweden and Washington University. In this total sample collection of 397 ARPs, we have analyzed linkage to chromosomes 1, 9, 10, 12, 19 and 21, implicated in the previous scan.
Results
The analysis revealed that linkage to chromosome 19q13 close to the APOE locus increased considerably as compared to the earlier scan. However, linkage to chromosome 10q21, which provided the strongest linkage in the previous scan could not be detected.
Conclusion
The present investigation provides yet further evidence that 19q13 is the only chromosomal region consistently linked to Alzheimer's disease.