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Updated: May 31, 2026
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Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice
Published on: May 2, 2025
Transcriptome analysis of human diabetic kidney disease
Karolina I Woroniecka1, Ae Seo Deok Park, Davoud Mohtat
1Department of Medicine, Division of Nephrology, Albert Einstein College of Medicine, Bronx, New York, USA.
Diabetes
|July 15, 2011
Summary
Diabetic kidney disease (DKD) causes kidney failure. This study catalogs gene expression changes in DKD kidney biopsies, identifying novel pathways like complement signaling involved in disease progression.
Area of Science:
- Nephrology
- Genomics
- Molecular Biology
Background:
- Diabetic kidney disease (DKD) is a leading cause of kidney failure in the U.S.
- No cure currently exists for DKD.
- Understanding gene expression is crucial for DKD pathogenesis.
Purpose of the Study:
- To create an unbiased catalog of gene-expression changes in human DKD kidney biopsy samples.
- To identify novel genes and pathways implicated in DKD.
Main Methods:
- Utilized Affymetrix expression arrays on 44 microdissected human kidney samples.
- Employed stringent statistical analysis (Benjamini-Hochberg corrected t test) to identify differentially expressed transcripts.
- Applied web-based algorithms for pathway analysis.
Main Results:
- Identified 1,700 differentially expressed probesets in DKD glomeruli and 1,831 in diabetic tubuli.
- Highlighted Ras homolog gene family member A, Cdc42, integrin, and VEGF signaling in DKD glomeruli.
- Found strong enrichment for inflammation and complement signaling pathways in DKD, linked to glomerulosclerosis.
Conclusions:
- Cataloged gene-expression regulation in DKD.
- Identified novel genes and pathways potentially involved in DKD pathogenesis.
- These findings may lead to new DKD biomarkers.
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