AGEs/RAGE in CKD: irreversible metabolic memory road toward CVD?

Area of Science:

• Nephrology
• Cardiology
• Biochemistry

Background:

• Cardiovascular disease (CVD) is the leading cause of mortality in renal insufficiency patients, with a nearly 30-fold higher risk than the general population.
• Standard interventions targeting traditional risk factors have failed to improve cardiovascular outcomes in these patients.
• This failure suggests an underlying mechanism, possibly related to accumulated oxidative stress from long-term renal failure progression.

Purpose of the Study:

• To review the role of advanced glycation end-products (AGEs) and their receptor (RAGE) in mediating cardiovascular risk in renal insufficiency.
• To explore the AGEs/RAGE axis as a potential explanation for the 'metabolic memory' of oxidative stress in renal failure.
• To discuss the implications of AGEs/RAGE for risk assessment and therapeutic strategies.

Main Methods:

• Literature review focusing on the association between AGEs, RAGE, oxidative stress, and cardiovascular disease in renal failure.
• Analysis of evidence linking AGEs/RAGE pathway activation to intracellular oxidative stress and inflammation.
• Examination of recent advancements in measuring AGEs and RAGE.

Main Results:

• AGE generation is closely linked to increased oxidative stress.
• The AGEs/RAGE interaction initiates a pathway generating oxidative stress and inflammatory mediators, amplifying AGE production.
• Evidence strongly implicates the AGEs/RAGE axis in the pathogenesis of cardiovascular diseases, particularly in renal failure patients.

Conclusions:

• The AGEs/RAGE axis is a critical mediator of oxidative stress in renal failure.
• RAGE shows promise as a biomarker for cardiovascular risk in renal insufficiency.
• Targeting the AGEs/RAGE pathway may offer a novel therapeutic approach to mitigate the long-term adverse effects of renal failure.