AAS ›› 2015, Vol. 46 ›› Issue (2): 164-169.doi: 10.16098/j.issn.0529-1356.2015.02.004

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Differentially expressed genes related to age and the Alzheimer’s disease

JI Kai-yuan MA Wen-li* ZHENG Wen-ling   

  1. Institute of Genetic Engineering, Southern Medical University, Guangzhou 510515, China
  • Received:2014-10-09 Revised:2014-12-06 Online:2015-04-06 Published:2015-04-06
  • Contact: MA Wen-li E-mail:wenli668@gmail.com
  • Supported by:

    National Natural Science Fund

Abstract:

Objective To study gene expression analysis of age related morbidity of the Alzheimer’s disease. Methods The Qlucore Omics Explore (QOE) bioinformatic software was used to analyze age and Alzheimer’s disease related gene expression data of GSE36980 and GSE53890 from Gene Expression Omnibus (GEO). Differentially expressed genes involved in Alzheimer’s disease and age were screened by two group comparison and linear regression in the case of strict compliance with statistical significance. Online tool software DAVID was used for Gene Ontology (GO) enrichment analysis. Results Twenty differentially expressed genes in Alzheimer’s disease were found to be down regulated with age. The result of GO enrichment analysis showed that the involved biological process of these genes was relevant to cellular protein catabolic process, cell cycle and neurological system process. It was also found that the genes were involved in cellular structural component, such as axon, synapse, plasma membrane, cytoskeleton and non-membrane-bounded organelle. The molecular functions involved were found to be adenyl ribonucleotide binding and metal ion binding. Conclusion Through data mining analysis, we find that in the Alzheimer’s disease, PDE2A and other 19 genes are down regulated with age. It indicates that these 20 genes are not only related with aging, but also involved in the mechanisms of Alzheimer’s diseases.

Key words: Alzheimer’s disease, Age, Gene expression, Bioinformatics, Human