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Mechanisms and treatment of CKD
Piero Ruggenenti1, Paolo Cravedi, Giuseppe Remuzzi
1Mario Negri Institute for Pharmacological Research, Clinical Research Center for Rare Diseases, Aldo e Cele Daccò, Villa Camozzi, Ranica, Italy.
Insights
Chronic kidney disease (CKD) progression is linked to protein overload. Renin-angiotensin system (RAS) inhibitors effectively reduce proteinuria, slowing CKD progression and protecting kidney function.
Area of Science:
- Nephrology
- Cardiovascular Medicine
- Pharmacology
Background:
- Chronic kidney disease (CKD) is a growing global health concern with significant financial implications.
- Glomerular hypertension and proteinuric kidney disease are key drivers of CKD progression.
- Proteinuria is an independent predictor of CKD progression, and its reduction is renoprotective.
Purpose of the Study:
- To evaluate the efficacy of renin-angiotensin system (RAS) inhibitors in managing CKD progression.
- To assess the role of RAS inhibitors in reducing proteinuria and preserving kidney function.
- To explore the impact of RAS inhibitors on cardiovascular outcomes in diabetic kidney disease.
Main Methods:
- Comparative analysis of RAS inhibitors (ACE inhibitors and ARBs) versus non-RAS inhibitors for proteinuria reduction and CKD progression.
- Evaluation of RAS inhibitors' effects on kidney function and end-stage renal disease (ESRD) in CKD patients.
- Assessment of ACE inhibitors' impact on cardiovascular mortality in diabetic patients with renal disease.
Main Results:
- RAS inhibitors demonstrate superior efficacy in reducing proteinuria compared to non-RAS inhibitors at comparable blood pressure control.
- RAS inhibitors slow the progression to ESRD and can improve kidney function, with some cases showing disease regression.
- In diabetic patients, RAS inhibitors delay microalbuminuria onset and progression; ACE inhibitors may reduce cardiovascular mortality.
Conclusions:
- RAS inhibitors are crucial for renoprotective therapy in CKD by reducing proteinuria and slowing disease progression.
- Multimodal approaches, including lifestyle changes and other medications, are often necessary for optimal CKD management.
- Further research is needed to determine the cost-effectiveness of novel renoprotective medications.
Abstract:
As CKD continues to increase worldwide, along with the demand for related life-saving therapies, the financial burden of CKD will place an increasing drain on health care systems. Experimental studies showed that glomerular capillary hypertension and impaired sieving function with consequent protein overload play a pathogenic role in the progression of CKD. Consistently, human studies show that proteinuria is an independent predictor of progression and that its reduction is renoprotective. At comparable BP control, inhibitors of the renin-angiotensin system (RAS), including angiotensin converting enzyme (ACE) inhibitors and angiotensin II receptor blockers (ARBs), more effectively than non-RAS inhibitor therapy reduce proteinuria, slow progression to ESRD, and even improve the kidney function achieving disease regression in some cases. In participants with diabetes, RAS inhibitors delay the onset of microalbuminuria and its progression to macroalbuminuria, and ACE inhibitors may reduce the excess cardiovascular mortality associated with diabetic renal disease. In addition to RAS inhibitors, however, multimodal approaches including lifestyle modifications and multidrug therapy will be required in most cases to optimize control of the several risk factors for CKD and related cardiovascular morbidity. Whether novel medications may help further improve the cost-effectiveness of renoprotective interventions is a matter of investigation.
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