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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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Diabetic Proteinuria Revisited: Updated Physiologic Perspectives
Samuel N Heyman1,2, Itamar Raz3,4, Jamie P Dwyer5
1Department of Medicine, Hadassah Hebrew University Hospital, Mt. Scopus, Jerusalem 9765422, Israel.
Cells
|September 23, 2022
Summary
Diabetic nephropathy involves albuminuria, kidney injury, and hyperfiltration. Early intervention targeting hyperfiltration and proteinuria is crucial, even before microalbuminuria appears, to prevent kidney damage.
Area of Science:
- Nephrology
- Endocrinology
- Diabetology
Background:
- Diabetic nephropathy is characterized by albuminuria, reflecting glomerular injury and dysfunction.
- Albuminuria is influenced by glomerular hemodynamics, hyperfiltration, and impaired tubular albumin reabsorption.
- Albuminuria progression contributes to diabetic nephropathy, making its suppression a key preventive strategy.
Purpose of the Study:
- To review the factors contributing to diabetic albuminuria.
- To discuss the rationale and efficacy of interventions targeting glomerular hyperfiltration and proteinuria.
- To advocate for early therapeutic initiation before the onset of microalbuminuria.
Main Methods:
- Literature review and synthesis of existing research on diabetic nephropathy and albuminuria.
- Analysis of physiological mechanisms underlying albuminuria development and progression.
- Discussion of therapeutic strategies for managing hyperfiltration and proteinuria.
Main Results:
- Albuminuria is a complex condition influenced by multiple factors including hemodynamics and tubular function.
- Early renal injury can occur even without detectable proteinuria.
- Interventions reducing glomerular hyperfiltration and proteinuria are effective in managing diabetic nephropathy.
Conclusions:
- Therapeutic interventions should be initiated early in diabetic nephropathy, preceding microalbuminuria development, due to potential pre-existing renal injury.
- Inhibition of the renin-angiotensin axis or sodium-glucose co-transport may allow for higher protein intake, beneficial for sarcopenic diabetic patients.
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