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Neurology. 1997 Jul;49(1):56-61.

Genetic association of the low-density lipoprotein receptor-related protein gene (LRP), an apolipoprotein E receptor, with late-onset Alzheimer's disease.

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Department of Neurosciences, School of Medicine, University of California at San Diego, La Jolla 92093-0949, USA.


The presence of the APOE epsilon 4 allele encoding apolipoprotein E4 (apoE4) is the major genetic risk factor for late-onset Alzheimer's disease (AD). However, the molecular and cellular mechanisms by which APOE epsilon 4 renders AD risk are unclear. In this report, we present genetic evidence that an apoE receptor, LRP, may be associated with the expression of late-onset AD. Using a biallelic genetic marker in exon 3 of LRP, late-onset AD cases markedly differed from the control subjects in the distribution of LRP genotypes, and this difference was highly accentuated among AD cases with positive family history of senile dementia. Furthermore, the numbers of neutritic plaques were significantly altered as a consequence of different LRP genotypes in postmortem AD cases. Taken together, our results implicate the pathophysiology of LRP in the expression of late-onset AD.

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