The protective gene dose effect of the APOE ε2 allele on gray matter volume in cognitively unimpaired individuals

被引:13
作者
Salvado, Gemma [1 ,2 ]
Ferreira, Daniel [3 ,4 ]
Operto, Gregory [1 ,2 ,5 ]
Cumplido-Mayoral, Irene [1 ,6 ]
Arenaza-Urquijo, Eider M. [1 ,2 ,5 ]
Cacciaglia, Raffaele [1 ,2 ,5 ]
Falcon, Carles [1 ,2 ,7 ]
Vilor-Tejedor, Natalia [1 ,6 ,8 ,9 ]
Minguillon, Carolina [1 ,2 ,5 ]
Groot, Colin [10 ]
van der Flier, Wiesje M. [10 ,11 ]
Barkhof, Frederik [12 ,13 ,14 ]
Scheltens, Philip [10 ]
Ossenkoppele, Rik [10 ,15 ]
Kern, Silke [16 ]
Zettergren, Anna [16 ]
Skoog, Ingmar [16 ]
Hort, Jakub [17 ,18 ,19 ]
Stomrud, Erik [20 ,21 ]
van Westen, Danielle [22 ,23 ]
Hansson, Oskar [20 ,21 ]
Molinuevo, Jose Luis [1 ]
Wahlund, Lars-Olof [3 ]
Westman, Eric [3 ,24 ]
Gispert, Juan Domingo [1 ,2 ,6 ,7 ]
机构
[1] Pasqual Maragall Fdn, Barcelona Beta Brain Res Ctr BBRC, Barcelona, Spain
[2] IMIM Hosp del Mar Med Res Inst, Barcelona, Spain
[3] Karolinska Inst, Ctr Alzheimer Res, Dept Neurobiol Care Sci & Soc, Div Clin Geriatr, Stockholm, Sweden
[4] Mayo Clin, Dept Radiol, Rochester, MN USA
[5] CIBER Fragilidad & Envejecimiento Saludable CIBER, Madrid, Spain
[6] Univ Pompeu Fabra, Barcelona, Spain
[7] Ctr Invest Biomed Red Bioingn Biomat & Nanomed CI, Madrid, Spain
[8] Barcelona Inst Sci & Technol, Ctr Genom Regulat CRG, Barcelona, Spain
[9] Erasmus MC, Dept Clin Genet, Rotterdam, Netherlands
[10] Vrije Univ Amsterdam, Alzheimer Ctr Amsterdam, Dept Neurol, Amsterdam UMC,Amsterdam Neurosci, Amsterdam, Netherlands
[11] Vrije Univ Amsterdam, Dept Epidemiol & Biostat, Amsterdam UMC, Amsterdam Neurosci, Amsterdam, Netherlands
[12] Vrije Univ Amsterdam Med Ctr, Dept Radiol & Nucl Med, Neurosci Campus Amsterdam, Amsterdam, Netherlands
[13] UCL, Inst Neurol, London, England
[14] UCL, Inst Healthcare Engn, London, England
[15] Lund Univ, Clin Memory Res Unit, Lund, Sweden
[16] Univ Gothenburg, Sahlgrenska Acad, Inst Neurosci & Physiol,Neuropsychiat Epidemiol U, Dept Psychiat & Neurochem,Ctr Ageing & Hlth AgeCa, Gothenburg, Sweden
[17] St Annes Univ Hosp Brno, Int Clin Res Ctr, Brno, Czech Republic
[18] Charles Univ Prague, Fac Med 2, Dept Neurol, Memory Clin, Prague, Czech Republic
[19] Motol Univ Hosp, Prague, Czech Republic
[20] Lund Univ, Dept Clin Sci, Clin Memory Res Unit, Lund, Sweden
[21] Skane Univ Hosp, Memory Clin, Malmo, Sweden
[22] Lund Univ, Inst Clin Sci, Diagnost Radiol, Lund, Sweden
[23] Skane Univ Hosp, Image & Funct, Lund, Sweden
[24] Kings Coll London, Ctr Neuroimaging Sci, Inst Psychiat Psychol & Neurosci, Dept Neuroimaging, London, England
基金
瑞典研究理事会; 加拿大健康研究院; 美国国家卫生研究院;
关键词
Alzheimer's disease; Alzheimer's disease signature; apolipoprotein E epsilon 2 carrier; brain maintenance; brain morphology; brain reserve; cognitive reserve; magnetic resonance; multi-site; resilience signature; APOLIPOPROTEIN-E; HIPPOCAMPAL VOLUME; ALZHEIMER-DISEASE; MRI; DEMENTIA; YOUNG; NEURODEGENERATION; MECHANISMS; PATHOLOGY; CARRIERS;
D O I
10.1002/alz.12487
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Introduction: Harboring two copies of the apolipoprotein E (APOE) epsilon 2 allele strongly protects against Alzheimer's disease (AD). However, the effect of this genotype on gray matter (GM) volume in cognitively unimpaired individuals has not yet been described. Methods: Multicenter brain magnetic resonance images (MRIs) from cognitively unimpaired epsilon 2 homozygotes were matched (1:1) against all other APOE genotypes for relevant confounders (n = 223). GM volumes of epsilon 2 genotypic groups were compared to each other and to the reference group (APOE epsilon 3/epsilon 3). Results: Carrying at least one epsilon 2 allele was associated with larger GM volumes in brain areas typically affected by AD and also in areas associated with cognitive resilience. APOE epsilon 2 homozygotes, but not APOE epsilon 2 heterozygotes, showed larger GM volumes in areas related to successful aging. Discussion: In addition to the known resistance against amyloid-beta deposition, the larger GM volumes in key brain regions may confer APOE epsilon 2 homozygotes additional protection against AD-related cognitive decline.
引用
收藏
页码:1383 / 1395
页数:13
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