Identification of differentially expressed genes in myocardium of patients with heart failure by human whole genomic oligonucleotide microarray-assisted pathways analysis / 中华心血管病杂志

ABSTRACT

<p><b>OBJECTIVE</b>To identify the differentially expressed gene profiles in myocardium of patients with heart failure using human whole genomic oligonucleotide microarray-assisted pathway analysis.</p><p><b>METHODS</b>Phalanx whole genomic oligonucleotide microarrays were used to detect the gene expression profiles of myocardium in four patients died of heart failure and 4 brain died patients without heart diseases. The microarray findings were confirmed by real-time quantitative reverse transcriptase-polymerase chain reaction. The genes with a threshold of 1.2 times fold-change were selected and BioCarta Pathway and KEGG (Kyoto Encyclopaedia of Genes and Genomes) pathway databases were used to identify functionally related gene pathways.</p><p><b>RESULTS</b>A total of 2806 genes with differentially expression were detected between the failing and non-failing heart samples, expression changes of 399 genes were more than 2-folds. Eleven pathways were identified by BioCarta pathway database and sixteen pathways were identified by KEGG PATHWAY Database.</p><p><b>CONCLUSION</b>Genomic microarray-assisted pathway analysis could help to identify gene expression profiles in failing heart.</p>