Methylation profiling

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DNA Methylation of Synaptic Genes in the Prefrontal Cortex is Associated with Aging and Age-Related Cognitive Impairment


ABSTRACT: This study investigated the epigenetic mark of DNA methylation in the medial prefrontal cortex (mPFC) as a function of age and cognition. Young and aged F344 rats were characterized in a cognitive flexibility task, set shifting, and whole-genome bisulfite sequencing was performed in an Illumina system. The results indicate that differential methylation was linked to the expression of genes within functional categories which may mediate impaired cognition in aging. Differences in aging included hypermethylation of genes linked to synaptic function and GTPase activity. Further, age-related cognitive flexibility impairment was correlated to hypermethylation of synaptic, postsynaptic density and ion channel activity genes.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE97612 | GEO | 2017/08/02

SECONDARY ACCESSION(S): PRJNA382428

REPOSITORIES: GEO

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