TY - JOUR
T1 - Alzheimer's disease risk variants modulate endophenotypes in mild cognitive impairment
AU - Louwersheimer, Eva
AU - Wolfsgruber, Steffen
AU - Espinosa, Ana
AU - Lacour, André
AU - Heilmann-Heimbach, Stefanie
AU - Alegret, Montserrat
AU - Hernández, Isabel
AU - Rosende-Roca, Maitée
AU - Tárraga, Lluís
AU - Boada, Mercè
AU - Kornhuber, Johannes
AU - Peters, Oliver
AU - Frölich, Lutz
AU - Hüll, Michael
AU - Rüther, Eckart
AU - Wiltfang, Jens
AU - Scherer, Martin
AU - Riedel-Heller, Steffi
AU - Jessen, Frank
AU - Nöthen, Markus M.
AU - Maier, Wolfgang
AU - Koene, Ted
AU - Scheltens, Philip
AU - Holstege, Henne
AU - Wagner, Michael
AU - Ruiz, Agustín
AU - van der Flier, Wiesje M.
AU - Becker, Tim
AU - Ramirez, Alfredo
N1 - Publisher Copyright:
© 2016 The Alzheimer's Association
PY - 2016/8/1
Y1 - 2016/8/1
N2 - 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.
AB - 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.
KW - Alzheimer's disease
KW - Endophenotypes
KW - Genetic risk variants
KW - Mild cognitive impairment
KW - Polygenic risk score
UR - https://www.scopus.com/pages/publications/84989937910
UR - https://www.scopus.com/pages/publications/84989937910#tab=citedBy
U2 - 10.1016/j.jalz.2016.01.006
DO - 10.1016/j.jalz.2016.01.006
M3 - Article
C2 - 26921674
AN - SCOPUS:84989937910
SN - 1552-5260
VL - 12
SP - 872
EP - 881
JO - Alzheimer's and Dementia
JF - Alzheimer's and Dementia
IS - 8
ER -