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Background <p>The primary renal complication of diabetes mellitus is diabetic kidney disease (DKD). The precise pathogenic mechanisms of DKD remain poorly elucidated. The aim of this study was to identify potential energy metabolism-related genes associated with DKD.</p> Methods <p>The GSE30529 and GSE30528 datasets were retrieved from the Gene Expression Omnibus, and energy metabolism-related genes were obtained from the GeneCards database. Differentially expressed genes (DEGs) between DKD and control groups were analyzed. The biological functions and signaling pathways of these DEGs were evaluated using Gene Ontology (GO), the Kyoto Encyclopedia of Genes and Genomes (KEGG), and gene set enrichment analysis (GSEA). The diagnostic performance of hub genes for DKD was assessed using receiver operating characteristic (ROC) curve analysis. Expression levels of five significant energy metabolism-related genes were validated through immunohistochemistry. The Nephroseq V5 tool was used to evaluate gene expression in DKD and to determine correlations between gene expression and renal function in patients with DKD.</p> Results <p>A total of 17 energy metabolism-related DEGs were identified. Five hub genes—<i>ALB</i>, <i>IGF1</i>, <i>CD36</i>, <i>LPL</i>, and <i>UCP2</i>—were identified. Among these, <i>CD36</i> and <i>LPL</i> demonstrated relatively high diagnostic accuracy for DKD. The findings suggest that <i>CD36</i>, <i>IGF1</i>, <i>LPL</i>, and <i>UCP2</i> may serve as potential biomarkers for DKD.</p> Conclusions <p>The genes <i>CD36</i>,<i> IGF1</i>,<i> LPL</i>, and <i>UCP2</i> represent potential energy metabolism-related biomarkers with possible applications in the diagnosis and treatment of DKD.</p>

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Identification and validation of energy metabolism-related genes in diabetic kidney disease through integrated bioinformatics and in vivo analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月28日

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  • Hui Jiang,
  • Ming-Hui Geng,
  • Yue-Mei Zhan,
  • Jin-Feng Shen,
  • Fu-Zhen Wang,
  • Sen-Qing Lin,
  • Zhe Hong,
  • Chun-Hua Guo,
  • Jin-Xiu Deng,
  • Sen-Chao Wu

摘要

Background

The primary renal complication of diabetes mellitus is diabetic kidney disease (DKD). The precise pathogenic mechanisms of DKD remain poorly elucidated. The aim of this study was to identify potential energy metabolism-related genes associated with DKD.

Methods

The GSE30529 and GSE30528 datasets were retrieved from the Gene Expression Omnibus, and energy metabolism-related genes were obtained from the GeneCards database. Differentially expressed genes (DEGs) between DKD and control groups were analyzed. The biological functions and signaling pathways of these DEGs were evaluated using Gene Ontology (GO), the Kyoto Encyclopedia of Genes and Genomes (KEGG), and gene set enrichment analysis (GSEA). The diagnostic performance of hub genes for DKD was assessed using receiver operating characteristic (ROC) curve analysis. Expression levels of five significant energy metabolism-related genes were validated through immunohistochemistry. The Nephroseq V5 tool was used to evaluate gene expression in DKD and to determine correlations between gene expression and renal function in patients with DKD.

Results

A total of 17 energy metabolism-related DEGs were identified. Five hub genes—ALB, IGF1, CD36, LPL, and UCP2—were identified. Among these, CD36 and LPL demonstrated relatively high diagnostic accuracy for DKD. The findings suggest that CD36, IGF1, LPL, and UCP2 may serve as potential biomarkers for DKD.

Conclusions

The genes CD36, IGF1, LPL, and UCP2 represent potential energy metabolism-related biomarkers with possible applications in the diagnosis and treatment of DKD.