Association of the CD2AP locus with cognitive functioning among middle-aged individuals with a family history of Alzheimer's disease
| Autor: | Anthony Heymann, Ithamar Ganmore, Sigalit Manzali, Eric Yu, Anna Alkelai, Ziv Gan-Or, Michal Schnaider Beeri, Ramit Ravona-Springer, Lior Greenbaum |
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| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Adult Male Aging Multifactorial Inheritance Apolipoprotein E4 Single-nucleotide polymorphism Polymorphism Single Nucleotide 03 medical and health sciences 0302 clinical medicine Cognition Alzheimer Disease Genetic model Medicine Humans Cognitive skill Allele Family history Medical History Taking Episodic memory Alleles Genetic Association Studies Adaptor Proteins Signal Transducing Aged business.industry General Neuroscience Age Factors Middle Aged Executive functions Cytoskeletal Proteins 030104 developmental biology Genetic Loci Female Neurology (clinical) Geriatrics and Gerontology business 030217 neurology & neurosurgery Developmental Biology Clinical psychology |
| Zdroj: | Neurobiology of aging. 101 |
| ISSN: | 1558-1497 |
| Popis: | First-degree family history is an established risk factor for Alzheimer's disease (AD). We investigated the association of late-onset AD risk loci with cognitive functioning among 315 offspring of AD patients. Participants were cognitively normal Jewish individuals, aged 40–65 years, from the Israel Registry for Alzheimer's Prevention (IRAP) study. Twenty-two single-nucleotide polymorphisms (SNPs) within these loci and the APOE E4 allele were included in the final analyses, and a polygenic risk score was also calculated. Using linear regression (assuming an additive genetic model), we found a significant association only for SNP rs9473117, located near the CD2-associated protein (CD2AP) gene, with global cognition. Controlling for demographic variables (age, sex, years of education, and ancestry), the late-onset AD risk allele C was associated with lower global cognitive functioning (p = 0.0005), and withstood correction for multiple testing. After adjusting for additional characteristics (APOE E4 status and then also for cardiovascular factors), the results remained essentially unchanged (p = 0.0003 and p = 0.0005, respectively). In secondary analyses examining specific cognitive domains, rs9473117 was similarly associated with episodic memory (p = 0.005), language (p = 0.009), and working memory/attention (p = 0.018) but not with executive functions (p = 0.27). Again, the results were similar after adjusting for APOE E4 status and cardiovascular factors. The polygenic risk score was not associated with global cognitive functioning or with any of the 4 domains. In conclusion, our findings suggest a contribution of the CD2AP locus to cognitive functioning in middle-aged individuals with a parental history of AD. Further validations, including in longitudinal studies, are required. |
| Databáze: | OpenAIRE |
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