Hub genes and gene functions associated with postmenopausal osteoporosis predicted by an integrated method

Autor: Xiangdang Liang, Qun Zhang, Wei Zhang, Lihai Zhang, Peifu Tang, Honghai Cao, Hua Chen, Yizhu Guo
Rok vydání: 2018
Předmět:
Zdroj: Experimental and Therapeutic Medicine
ISSN: 1792-1015
1792-0981
DOI: 10.3892/etm.2018.7095
Popis: Postmenopausal osteoporosis (PO) imposes great burden on individuals and society. This study predicted hub genes and gene functions for PO by an integration of the convergent evidence (CE) method, rank product (RP) algorithm and the combing of P-values. Using the gene expression data, genes were ranked by the CE method, RP algorithm and combing P-values, respectively. Subsequently, the top 100 genes were selected from each of the three gene lists, and then the common genes for two or three methods were denoted as informative genes of PO. A mutual information network (MIN) was constructed for the informative genes utilizing the context likelihood of relatedness algorithm. Topological centrality (degree) analysis was conducted on the MIN to investigate hub genes. Then we performed Gene Ontology (GO) enrichment analysis dependent upon the Biological Networks Gene Ontology tool (BiNGO) plugin of Cytoscape to investigate hub gene functions for PO patients. Consequently, a total of 82 informative genes were obtained by integrating the results of the three methods. There were 82 nodes and 1,741 edges in the MIN, of which 8 hub genes were identified, such as PFN1, EEF2 and S100A9. The result of GO enrichment analysis showed that 49 GO terms with P
Databáze: OpenAIRE