Gene co-expression networks are associated with obesity-related traits in kidney transplant recipients

BMC Medical Genomics
Rosario B Jaime-LaraPaule V Joseph

Abstract

Obesity is common among kidney transplant recipients; However biological mediators of obesity are not well understood in this population. Because subcutaneous adipose tissue can be easily obtained during kidney transplant surgery, it provides a unique avenue for studying the mechanisms of obesity for this group. Although differential gene expression patterns were previously profiled for kidney transplant patients, gene co-expression patterns can shed light on gene modules not yet explored on the coordinative behaviors of gene transcription in biological and disease processes from a systems perspective. In this study, we collected 29 demographic and clinical variables and matching microarray expression data for 26 kidney transplant patients. We conducted Weighted Gene Correlation Network Analysis (WGCNA) for 5758 genes with the highest average expression levels and related gene co-expression to clinical traits. A total of 35 co-expression modules were detected, two of which showed associations with obesity-related traits, mainly at baseline. Gene Ontology (GO) enrichment was found for these two clinical trait-associated modules. One module consisting of 129 genes was enriched for a variety of processes, including cellular homeos...Continue Reading

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Datasets Mentioned

BETA
GPL6244
GSE33070

Methods Mentioned

BETA
X-ray

Software Mentioned

WGCN
WGCNA
IPA
R
GOStat
Ingenuity
Darkgreen
IPA Analysis
Weighted Gene Correaltion Network Analysis ( WGCNA )

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