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    Neurology. 2004 Jul 27;63(2):364-6.

    Prion protein codon 129 polymorphism and risk of Alzheimer disease.

    Riemenschneider M, Klopp N, Xiang W, Wagenpfeil S, Vollmert C, Müller U, Förstl H, Illig T, Kretzschmar H, Kurz A.

    Neurochemistry and Neurogenetics Laboratory, Department of Psychiatry and Psychotherapy, Technische Universität München, Ismaningerstr. 22, 81675 Munich, Germany. m.riemenschneider@lrz.tu-muenchen.de

    The authors investigated the PRNP Met129Val polymorphism in 1,393 subjects including 482 patients with Alzheimer disease (AD) and two independent control groups. In patients, PRNP Met homozygosity conferred increasing risk with decreasing age at onset (onset: 61 to 70 years, n = 151, p = 0.02, odds ratio [OR] = 1.72, 95% CI = 1.2 to 2.53; onset: < or =60 years, n = 138, p = 0.013, OR = 1.92, 95% CI = 1.31 to 2.87), whereas no association was obtained in patients with onset at older than 70 years. The results suggest involvement of the prion protein in the pathogenesis of early-onset AD.

    PMID: 15277640 [PubMed - indexed for MEDLINE]

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