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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
Oxidative stress in diabetic nephropathy.
N Kashihara1, Y Haruna, V K Kondeti
1Department of Internal Medicine, Kawasaki Medical School, Kurashiki, Okayama, Japan.
Current Medicinal Chemistry
|October 14, 2010
Summary
Diabetic nephropathy causes kidney failure, driven by oxidative stress and the renin-angiotensin system (RAS). While antioxidants show limited benefit, targeting RAS offers better protection against diabetic kidney disease progression.
Area of Science:
- Nephrology
- Endocrinology
- Oxidative Stress Research
Background:
- Diabetic nephropathy is a primary cause of end-stage renal failure globally.
- Key features include glomerular hypertrophy, basement membrane thickening, and interstitial fibrosis, all microvascular complications of diabetes.
Purpose of the Study:
- To review the roles of oxidative stress and the renin-angiotensin system (RAS) in diabetic nephropathy.
- To explore potential therapeutic strategies for mitigating renal damage in diabetic patients.
Main Methods:
- Literature review focusing on oxidative stress pathways (ROS generation) and RAS activation in diabetic nephropathy.
- Analysis of therapeutic interventions targeting oxidative stress and RAS.
Main Results:
- Oxidative stress, from sources like NAD(P)H oxidase and AGEs, is central to diabetic micro- and macro-vascular complications.
- Excessive reactive oxygen species (ROS) activate signaling pathways leading to extracellular matrix (ECM) gene expression and fibrosis.
- Renin-angiotensin system (RAS) activation exacerbates ROS-induced renal injury.
Conclusions:
- Antioxidant therapies have shown limited renoprotective effects in diabetic nephropathy.
- Interruption of the RAS has demonstrated more significant benefits in slowing disease progression.
- Developing novel, targeted antioxidants is crucial for future therapeutic advancements against diabetic kidney disease.
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