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The apolipoprotein E geneε4 allele is considered a negative factor for neural regeneration in late-onset Alzheimer’s disease cases. The aim of this study was to establish a non-invasive, rapid method to genotype apolipoprotein E gene polymorphisms. Genomic DNA from mouth swab specimens was extracted using magnetic nanoparticles, and genotyping was performed by real-time PCR using TaqMan-BHQ probes. Genotyping accuracy was validated by DNA se-quencing. Our results demonstrate 100%correlation to DNA sequencing, indicating reliability of our protocol. Thus, the method we have developed for apolipoprotein E genotyping is accurate and reliable, and also suitable for genotyping large samples, which may help determine the role of the apolipoprotein Eε4 allele in neural regeneration in late-onset Alzheimer’s disease cases.
