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Updated: May 2, 2026

Analysis of Nephron Composition and Function in the Adult Zebrafish Kidney
Published on: August 9, 2014
The aging kidney revisited: a systematic review.
Davide Bolignano1, Francesco Mattace-Raso2, Eric J G Sijbrands2
1CNR-IFC, Clinical Epidemiology and Physiopathology of Renal Diseases and Hypertension of Reggio Calabria, Italy.
Kidney aging causes a progressive decline in renal function due to factors like inflammation and oxidative stress. Lifestyle modifications are the most effective approach to maintain kidney health in the elderly.
Area of Science:
- Nephrology
- Gerontology
- Physiology
Background:
- The human kidney experiences age-related changes leading to a progressive decline in renal function.
- Renal aging is influenced by multiple factors including genetics, chronic inflammation, oxidative stress, the renin-angiotensin-aldosterone system (RAAS), impaired repair, and cardiovascular disease.
Purpose of the Study:
- To explore the multifactorial nature of renal aging.
- To discuss the challenges in assessing renal function in aging.
- To evaluate interventions for maintaining kidney health in the elderly.
Main Methods:
- Review of existing literature on renal aging.
- Analysis of macroscopic, microscopic, and functional changes in the aging kidney.
- Discussion of contributing factors and potential interventions.
Main Results:
- Age-related kidney changes include macroscopic and microscopic alterations and functional adaptations, but no single feature is pathognomonic of aging.
- Assessing renal function in aging individuals is complex, with ongoing debate on whether it's physiological or pathological.
- Dietary and pharmacological interventions show promise but lifestyle modifications remain the most plausible strategy.
Conclusions:
- Renal aging is a complex, multifactorial process.
- Maintaining kidney health in the elderly likely relies on comprehensive lifestyle modifications.
- Further research is needed to fully understand and manage age-related kidney decline.
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