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Evidence for Genetic Linkage of Alzheimer's Disease to Chromosome 10q

Science  22 Dec 2000:
Vol. 290, Issue 5500, pp. 2302-2303
DOI: 10.1126/science.290.5500.2302

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Abstract

Recent studies suggest that insulin-degrading enzyme (IDE) in neurons and microglia degrades Aβ, the principal component of β-amyloid and one of the neuropathological hallmarks of Alzheimer's disease (AD). We performed parametric and nonparametric linkage analyses of seven genetic markers on chromosome 10q, six of which map near the IDE gene, in 435 multiplex AD families. These analyses revealed significant evidence of linkage for adjacent markers (D10S1671, D10S583, D10S1710, and D10S566), which was most pronounced in late-onset families. Furthermore, we found evidence for allele-specific association between the putative disease locus and marker D10S583, which has recently been located within 195 kilobases of the IDE gene.

  • * To whom correspondence should be addressed at Genetics and Aging Unit, Massachusetts General Hospital–East, 149 13th Street, Charlestown, MA 02129, USA. E-mail: tanzi{at}helix.mgh.harvard.edu

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