期刊
NEUROBIOLOGY OF AGING
卷 35, 期 4, 页码 899-905出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.neurobiolaging.2013.09.012
关键词
Cerebral microbleeds; Epidemiology; Risk factor; APOE; Population-based; MRI; Imaging marker; Cerebrovascular disease
资金
- Erasmus MC
- Erasmus University Rotterdam
- Netherlands Organization for Scientific Research (NWO)
- Netherlands Organization for Health Research and Development (ZonMW)
- Research Institute for Diseases in the Elderly (RIDE)
- Netherlands Genomics Initiative
- Ministry of Education, Culture and Science
- Ministry of Health, Welfare and Sports
- European Commission (DG XII)
- Municipality of Rotterdam
- KNAW Academy Assistantship
In cerebral amyloid angiopathy patients, microbleeds often cluster, mostly occipital, and are associated with apolipoprotein E (APOE) genotype. Microbleeds also frequently occur in the asymptomatic, general population. In this population, we investigated spatial distribution of microbleeds and whether this is influenced by APOE genotype. In 292 persons with microbleeds, we labeled microbleeds on baseline and follow-up magnetic resonance images. We calculated distance between incident and prevalent microbleeds within and between persons and performed lobar segmentation on the magnetic resonance images. Subsequently, we investigated proximity and lobar distribution in strata of APOE genotype. Microbleeds occurred closer within persons than between persons (-42.2 mm, 95% confidence interval, -44.6 to -39.9; p < 0.001). Microbleeds within APOE epsilon 2 and epsilon 4 carriers occurred closer than those in persons with epsilon 3 epsilon 3 genotype (-11.9 mm, 95% confidence interval, -24.4 to 0.6; p = 0.06). Persons with epsilon 2 and epsilon 4 alleles had a larger proportion of microbleeds in the occipital lobe than persons with epsilon 3 epsilon 3 genotype. Similar to cerebral amyloid angiopathy patients, microbleeds in the general population cluster and the distribution is affected by APOE genotype. (C) 2014 Elsevier Inc. All rights reserved.
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