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Failure to replicate a protective effect of allele 2 of NACP/alpha-synuclein polymorphism in Alzheimer's disease: an

N E Hellman¹, E A Grant, A M Goate

¹Department of Psychiatry, Washington University School of Medicine, St. Louis, MO 63110, USA.

Annals of Neurology

|August 26, 1998

Abstract:

Recently, a dinucleotide repeat polymorphism was identified in the promoter of the nonamyloid component of plaques (NACP) gene, and it was shown that the NACP allele 2 was significantly associated with healthy elderly control individuals with at least one apolipoprotein E epsilon4 allele, suggesting a protective role for this allele in Alzheimer's disease. We genotyped the same NACP polymorphism in a comparable number of individuals diagnosed with dementia of the Alzheimer's type and in healthy, elderly controls. In our analysis, however, no protective effect for NACP allele 2, or any of the other NACP alleles, was observed.

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