CR1, ABCA7, andAPOE genes affect the features of cognitive impairment in Alzheimer's disease
- Author(s)
- Sun Ju Chung; Mi-Jung Kim; Young Jin Kim; Juyeon Kim; Sooyeoun You; Eun Hye Jang; Seong Yoon Kim; Jae-Hong Lee
- Keimyung Author(s)
- You, Soo Yeoun
- Department
- Dept. of Neurology (신경과학)
- Journal Title
- Journal of the Neurological Sciences
- Issued Date
- 2014
- Volume
- 339
- Issue
- 1-2
- Keyword
- Alzheimer's disease; ABCA7; APOE; CR1; Single nucleotide polymorphism; Phenotype
- Abstract
- ackground:
The genetic factors that determine the heterogeneity of cognitive impairment in Alzheimer's disease (AD) patients have been rarely reported. We aimed to investigate the association between top hits of genome-wide association studies (GWAS) and specific cognitive domains in AD patients.
Methods:
We investigated 86 single nucleotide polymorphisms (SNPs) selected from 12 genes (ABCA7, APOE, BIN1, CD2AP, CD33, CLU, CR1, EPHA1, LRAT, MS4A6A, PCDH11X, and PICALM) based on results of the recent GWAS and genotyped in 211 AD cases. We also analyzed results of comprehensive neuropsychological evaluations in all cases. We performed multiple regression analyses.
Results:
There were four significant associations between genotypes and phenotypes of AD patients: CR1 SNP rs11803956 correlated with Mini-Mental State Examination (MMSE) score (β = 1.718, Pcorrected = 0.002); ABCA7 SNP rs3752232 correlated with Rey Complex Figure Test (RCFT) copy score (β = − 6.861, Pcorrected = 0.013); APOE SNP rs2075650 correlated with the percentile of RCFT copy score (β = 14.005, Pcorrected = 0.021) and the percentile of total score in phonemic fluency (β = 11.052, Pcorrected = 0.035).
Conclusion:
Our results suggest that CR1, ABCA7, and APOE correlate with specific aspects of cognitive impairments in AD patients.
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