Alzheimer's disease risk variants modulate endophenotypes in mild cognitive impairment

  • Eva Louwersheimer
  • , Steffen Wolfsgruber
  • , Ana Espinosa
  • , André Lacour
  • , Stefanie Heilmann-Heimbach
  • , Montserrat Alegret
  • , Isabel Hernández
  • , Maitée Rosende-Roca
  • , Lluís Tárraga
  • , Mercè Boada
  • , Johannes Kornhuber
  • , Oliver Peters
  • , Lutz Frölich
  • , Michael Hüll
  • , Eckart Rüther
  • , Jens Wiltfang
  • , Martin Scherer
  • , Steffi Riedel-Heller
  • , Frank Jessen
  • , Markus M. Nöthen
  • Wolfgang Maier, Ted Koene, Philip Scheltens, Henne Holstege, Michael Wagner, Agustín Ruiz, Wiesje M. van der Flier, Tim Becker, Alfredo Ramirez

Producción científica: Articlerevisión exhaustiva

31 Citas (Scopus)

Resumen

Introduction We evaluated the effect of Alzheimer's disease (AD) susceptibility loci on endophenotypes closely related with AD pathology in patients with mild cognitive impairment (MCI). Methods We selected 1730 MCI patients from four independent data sets. Weighted polygenic risk scores (PGS) were constructed of 18 non-apolipoprotein E (APOE) AD risk variants. In addition, we determined APOE genotype. AD endophenotypes were cognitive decline over time and cerebrospinal fluid (CSF) biomarkers (aβ, tau, ptau). Results PGS was modestly associated with cognitive decline over time, as measured by mini-mental state examination (MMSE) (β ± SE:−0.24 ± 0.10; P = .012), and with CSF levels of tau and ptau (tau: 1.38 ± 0.36, P = 1.21 × 10−4; ptau: 1.40 ± 0.36, P = 1.02 × 10−4). Discussion In MCI, we observed a joint effect of AD susceptibility loci on nonamyloid endophenotypes, suggesting a link of these genetic loci with neuronal degeneration in general rather than with Alzheimer-related amyloid deposition.

Idioma originalEnglish (US)
Páginas (desde-hasta)872-881
Número de páginas10
PublicaciónAlzheimer's and Dementia
Volumen12
N.º8
DOI
EstadoPublished - ago 1 2016
Publicado de forma externa

ASJC Scopus subject areas

  • Epidemiology
  • Health Policy
  • Developmental Neuroscience
  • Clinical Neurology
  • Geriatrics and Gerontology
  • Cellular and Molecular Neuroscience
  • Psychiatry and Mental health

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