TY - JOUR
T1 - Cerebral amyloid angiopathy in Down syndrome and sporadic and autosomal-dominant Alzheimer's disease
AU - Carmona-Iragui, María
AU - Balasa, Mircea
AU - Benejam, Bessy
AU - Alcolea, Daniel
AU - Fernández, Susana
AU - Videla, Laura
AU - Sala, Isabel
AU - Sánchez-Saudinós, María Belén
AU - Morenas-Rodriguez, Estrella
AU - Ribosa-Nogué, Roser
AU - Illán-Gala, Ignacio
AU - Gonzalez-Ortiz, Sofía
AU - Clarimón, Jordi
AU - Schmitt, Frederick
AU - Powell, David K.
AU - Bosch, Beatriz
AU - Lladó, Albert
AU - Rafii, Michael S.
AU - Head, Elizabeth
AU - Molinuevo, José Luis
AU - Blesa, Rafael
AU - Videla, Sebastián
AU - Lleó, Alberto
AU - Sánchez-Valle, Raquel
AU - Fortea, Juan
N1 - Publisher Copyright:
© 2017 the Alzheimer's Association
PY - 2017/11
Y1 - 2017/11
N2 - Introduction We aimed to investigate if cerebral amyloid angiopathy (CAA) is more frequent in genetically determined than in sporadic early-onset forms of Alzheimer's disease (AD) (early-onset AD [EOAD]). Methods Neuroimaging features of CAA, apolipoprotein (APOE), and cerebrospinal fluid amyloid β (Aβ) 40 levels were studied in subjects with Down syndrome (DS, n = 117), autosomal-dominant AD (ADAD, n = 29), sporadic EOAD (n = 42), and healthy controls (n = 68). Results CAA was present in 31%, 38%, and 12% of cognitively impaired DS, symptomatic ADAD, and sporadic EOAD subjects and in 13% and 4% of cognitively unimpaired DS individuals and healthy controls, respectively. APOE ε4 genotype was borderline significantly associated with CAA in sporadic EOAD (P =.06) but not with DS or ADAD. There were no differences in Aβ040 levels between groups or between subjects with and without CAA. Discussion CAA is more frequently found in genetically determined AD than in sporadic EOAD. Cerebrospinal fluid Aβ40 levels are not a useful biomarker for CAA in AD.
AB - Introduction We aimed to investigate if cerebral amyloid angiopathy (CAA) is more frequent in genetically determined than in sporadic early-onset forms of Alzheimer's disease (AD) (early-onset AD [EOAD]). Methods Neuroimaging features of CAA, apolipoprotein (APOE), and cerebrospinal fluid amyloid β (Aβ) 40 levels were studied in subjects with Down syndrome (DS, n = 117), autosomal-dominant AD (ADAD, n = 29), sporadic EOAD (n = 42), and healthy controls (n = 68). Results CAA was present in 31%, 38%, and 12% of cognitively impaired DS, symptomatic ADAD, and sporadic EOAD subjects and in 13% and 4% of cognitively unimpaired DS individuals and healthy controls, respectively. APOE ε4 genotype was borderline significantly associated with CAA in sporadic EOAD (P =.06) but not with DS or ADAD. There were no differences in Aβ040 levels between groups or between subjects with and without CAA. Discussion CAA is more frequently found in genetically determined AD than in sporadic EOAD. Cerebrospinal fluid Aβ40 levels are not a useful biomarker for CAA in AD.
KW - Autosomal-dominant Alzheimer's disease
KW - Cerebral amyloid angiopathy
KW - Cerebrospinal fluid biomarkers
KW - Down syndrome
KW - Neuroimaging
KW - Sporadic early-onset Alzheimer's disease
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U2 - 10.1016/j.jalz.2017.03.007
DO - 10.1016/j.jalz.2017.03.007
M3 - Article
C2 - 28463681
AN - SCOPUS:85019877472
SN - 1552-5260
VL - 13
SP - 1251
EP - 1260
JO - Alzheimer's and Dementia
JF - Alzheimer's and Dementia
IS - 11
ER -