The genetics of Alzheimer's diseaseopen access
- Authors
- Bagyinszky, Eva; Youn, Young Chul; An, Seong Soo A.; Kim, SangYun
- Issue Date
- 1-Apr-2014
- Publisher
- DOVE MEDICAL PRESS LTD
- Keywords
- dementia; amyloid precursor protein; presenilin 1; presenilin 2; APOE; mutation; diagnosis; genetic testing
- Citation
- CLINICAL INTERVENTIONS IN AGING, v.9, pp 535 - 551
- Pages
- 17
- Journal Title
- CLINICAL INTERVENTIONS IN AGING
- Volume
- 9
- Start Page
- 535
- End Page
- 551
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/13921
- DOI
- 10.2147/CIA.S51571
- ISSN
- 1178-1998
1178-1998
- Abstract
- Alzheimer's disease (AD) is a complex and heterogeneous neurodegenerative disorder, classified as either early onset (under 65 years of age), or late onset (over 65 years of age). Three main genes are involved in early onset AD: amyloid precursor protein (APP), presenilin 1 (PSEN1), and presenilin 2 (PSEN2). The apolipoprotein E (APOE) E4 allele has been found to be a main risk factor for late-onset Alzheimer's disease. Additionally, genome-wide association studies (GWASs) have identified several genes that might be potential risk factors for AD, including clusterin (CLU), complement receptor 1 (CR1), phosphatidylinositol binding clathrin assembly protein (PICALM), and sortilin-related receptor (SORL1). Recent studies have discovered additional novel genes that might be involved in late-onset AD, such as triggering receptor expressed on myeloid cells 2 (TREM2) and cluster of differentiation 33 (CD33). Identification of new AD-related genes is important for better understanding of the pathomechanisms leading to neurodegeneration. Since the differential diagnoses of neurodegenerative disorders are difficult, especially in the early stages, genetic testing is essential for diagnostic processes. Next-generation sequencing studies have been successfully used for detecting mutations, monitoring the epigenetic changes, and analyzing transcriptomes. These studies may be a promising approach toward understanding the complete genetic mechanisms of diverse genetic disorders such as AD.
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