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Updated: Aug 17, 2026

Use of Ultra-high Field MRI in Small Rodent Models of Polycystic Kidney Disease for In Vivo Phenotyping and Drug Monitoring
Published on: June 23, 2015
Kidney aging: from phenotype to genetics
Michele Buemi1, Lorena Nostro, Carmela Aloisi
1Department of Internal Medicine, University of Messina, Messina, Italy. buemim@unime.it
Abstract:
Aging is a physiological process that causes structural and functional changes in human body systems, sometimes leading to various organ failure. As far as the kidney is concerned, both genetic factors and environmental agents may influence the tissues damage in elderly people and the related loss of function. On the other hand, functional adaptations to structural changes appear to be compromised by co-morbid conditions that are frequently found in elderly people, such as atherosclerosis and hypertension. It is not yet known whether physiological aging is inevitably accompanied by a decline in renal function or how rapidly it might happen. The discovery of molecular mechanisms responsible for tissue damage in aging could offer new perspectives on interventions. The role of nitric oxide, oxidative stress, the renin-angiotensin system, changes in length of telomeres, and klotho gene expression are important subjects for further in-depth studies about aging. A better understanding of physiological renal aging could improve the clinical approach to this process and widen the therapeutic possibilities offered by transplantation.
Insights
Physiological aging causes kidney structure and function changes in elderly individuals. Further research into molecular mechanisms like oxidative stress and telomere length is needed to understand and treat kidney aging.
Area of Science:
- Gerontology
- Nephrology
- Molecular Biology
Background:
- Aging is a natural physiological process leading to structural and functional decline in body systems, including the kidneys.
- Kidney function in the elderly can be affected by genetic factors, environmental agents, and comorbidities like atherosclerosis and hypertension.
- The inevitability and rate of renal function decline solely due to physiological aging remain unclear.
Purpose of the Study:
- To explore the molecular mechanisms underlying kidney tissue damage during aging.
- To investigate the impact of aging on renal function and identify potential intervention points.
- To enhance the clinical management and therapeutic options for kidney aging and transplantation.
Main Methods:
- Review of current literature on physiological aging and kidney function.
- Analysis of molecular pathways implicated in age-related kidney damage.
- Exploration of the roles of nitric oxide, oxidative stress, renin-angiotensin system, telomere length, and klotho gene expression.
Main Results:
- Aging involves structural and functional changes in the kidneys, potentially leading to organ failure.
- Comorbidities significantly impact the kidney's ability to adapt to age-related structural changes.
- Specific molecular mechanisms require further in-depth investigation.
Conclusions:
- Understanding the molecular basis of kidney aging is crucial for developing targeted interventions.
- Improved knowledge of physiological renal aging can refine clinical approaches and expand transplantation possibilities.
- Further research into key molecular players is essential for addressing age-related kidney decline.
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