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Published on: August 9, 2014
Progression of renal disease: current concepts and therapeutic approaches
1University of Miami School of Medicine, Division of Nephrology, Florida.
Abstract:
The pathogenesis of progressive renal disease includes systemic hypertension and intrarenal factors that may be hemodynamic or metabolic in origin and involve mediators of inflammation. Most current information derives from experiments in rodents. In other species (rabbit, dog, baboon) subjected to renal mass reduction, a greater variety of pathologic changes is apparent than in rats. Clinical trials at controlling progression of renal disease are compounded by numerous factors; and it is not evident that extrapolation can safely be made from results of animal studies to human disease. The mechanism(s) of renal disease progression in humans, therefore, remain largely unknown. Current therapeutic recommendations in patients with chronic renal disease include limitation of phosphorus absorption, correction of lipid abnormalities and control of systemic blood pressure. The latter can be achieved with a variety of agents some of which, like angiotensin converting enzyme inhibitors and calcium antagonists, may be preferred because of specific intrarenal effects.
Insights
Understanding progressive renal disease is complex, as human mechanisms remain largely unknown despite animal studies. Current treatments focus on phosphorus, lipids, and blood pressure control, with specific agents offering intrarenal benefits.
Area of Science:
- Nephrology
- Pathophysiology
- Pharmacology
Background:
- Progressive renal disease pathogenesis involves systemic hypertension and intrarenal hemodynamic or metabolic factors, including inflammation.
- Current knowledge largely stems from rodent studies, but other species show more varied pathology after renal mass reduction.
- Extrapolating animal study results to human disease progression is challenging and potentially unsafe.
Purpose of the Study:
- To highlight the limitations of current animal models in understanding human progressive renal disease.
- To discuss the unknown mechanisms of renal disease progression in humans.
- To review current therapeutic recommendations for chronic renal disease management.
Main Methods:
- Review of existing literature on renal disease pathogenesis and animal models.
- Analysis of factors complicating clinical trials in renal disease progression.
- Examination of current therapeutic strategies and their intrarenal effects.
Main Results:
- Animal models, particularly rodents, may not fully represent the complexity of human renal disease progression.
- Human mechanisms of renal disease progression remain largely undetermined.
- Therapeutic strategies include managing phosphorus, lipids, and blood pressure, with certain agents like ACE inhibitors and calcium antagonists showing specific intrarenal advantages.
Conclusions:
- The mechanisms of human progressive renal disease are not well understood.
- Effective management of chronic renal disease requires addressing multiple factors, including systemic hypertension.
- Specific antihypertensive agents may offer additional benefits for intrarenal health.
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