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Related Experiment Video

Updated: Jul 3, 2026

Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice

Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice

Published on: May 2, 2025

[Endothelin system function in diabetic nephropathy].

Claudete Maria Zanatta¹, Luís Henrique Canani, Sandra Pinho Silveiro

¹Programa de Pós-Graduação em Ciências Médicas, Endocrinologia, Universidade Federal do Rio Grande do Sul.

Arquivos Brasileiros De Endocrinologia E Metabologia

|July 8, 2008

Summary

Diabetic Nephropathy (DN), a complication of diabetes mellitus (DM), involves the renin-angiotensin system and endothelins. Blocking endothelin receptors may protect kidneys in diabetic patients.

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Comparative Proteomic Analysis of Whole Kidney, Medulla, and Cortical Tubules in Diabetic Pathogenesis of Kidney Injury in Mice

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Area of Science:

Nephrology
Endocrinology
Cardiovascular Research

Context:

Diabetic Nephropathy (DN) is a severe complication of diabetes mellitus (DM), a leading cause of dialysis and mortality.
Hypertension, hyperglycemia, dyslipidemia, and genetics are key risk factors for DN.
The renin-angiotensin system (RAS) and endothelins are implicated in DN pathogenesis.

Purpose:

To explore the role of the renin-angiotensin system and endothelins in the development and progression of Diabetic Nephropathy.
To investigate the impact of endothelin receptor activation on renal cells and hemodynamic alterations in diabetes.
To review the renoprotective potential of endothelin receptor antagonists in experimental diabetes.

Summary:

Endothelins, potent vasoconstrictors, bind to ET-A and ET-B receptors on renal cells, triggering signaling cascades that promote mesangial cell hypertrophy, proliferation, and extracellular matrix accumulation.
Elevated endothelin-1 (ET-1) levels are observed in diabetic patients, with increased ET-1 production linked to glomerular damage.
Endothelin receptor antagonists have demonstrated renoprotective effects, correcting hemodynamic abnormalities in experimental models of diabetes.

Impact:

Highlights the critical role of the endothelin system in the pathophysiology of Diabetic Nephropathy.
Suggests endothelin receptor antagonism as a potential therapeutic strategy for preserving kidney function in diabetic patients.
Reinforces the importance of targeting the renin-angiotensin-endothelin axis for managing diabetic kidney disease.