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Updated: Mar 17, 2026

Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice
Published on: May 2, 2025
PCSK9 in diabetic kidney disease.
Usama Elewa1,2,3, Beatriz Fernández-Fernández1,2,3, Ignacio Mahillo-Fernández1
1IIS-Fundación Jiménez Díaz, School of Medicine, Universidad Autónoma de Madrid, Madrid, Spain.
In diabetic kidney disease (DKD), lipid-lowering therapies, especially fibrate and statin combinations, are linked to higher proprotein convertase subtilisin/kexin type 9 (PCSK9) levels. Further research is needed to explore PCSK9
Area of Science:
- Nephrology
- Cardiovascular Medicine
- Endocrinology
Background:
- Diabetic kidney disease (DKD) is a rapidly growing cause of mortality worldwide.
- Current treatments for DKD, including statins, offer limited protection.
- Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a therapeutic target for hypercholesterolemia, with anti-PCSK9 agents reducing cardiovascular events.
Purpose of the Study:
- To investigate factors influencing plasma PCSK9 levels in patients with diabetic kidney disease (DKD).
- To explore the relationship between PCSK9 and kidney function parameters (eGFR, albuminuria) in DKD patients.
Main Methods:
- Cross-sectional study of 134 DKD patients across eGFR G1-G4 and albuminuria A1-A3 categories.
- Plasma PCSK9 levels were measured and analyzed in relation to clinical factors and therapies.
- Multivariate analysis was employed to identify independent predictors of plasma PCSK9.
Main Results:
- Mean plasma PCSK9 levels were 309.8±113.9 ng/ml.
- Plasma PCSK9 was not significantly influenced by eGFR or albuminuria.
- Higher PCSK9 levels were observed in patients on lipid-lowering therapy, particularly with fibrate and statin combinations. Renin was also independently correlated.
Conclusions:
- Lipid-lowering drugs, especially fibrate/statin combinations, are independently associated with elevated PCSK9 levels in DKD.
- PCSK9's potential as a biomarker to guide anti-PCSK9 therapy in DKD patients warrants further investigation.
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