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Related Concept Videos

Renal Corpuscle01:20

Renal Corpuscle

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The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
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The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
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Aging01:26

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
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Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
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Nephrons01:10

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The kidneys are intricate organs with millions of working units known as nephrons. Each nephron features two major structures: the renal corpuscle, which facilitates blood plasma filtration, and the renal tubule, which handles the glomerular filtrate. Blood supply is directly linked to the nephrons. The renal corpuscle consists of the glomerulus, a capillary network, and the Bowman's capsule, a double-walled epithelial structure that encases the glomerulus. The filtering of blood plasma...
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Heart failure and kidney perfusion are interconnected in a complex way. Reduced renal perfusion and venous congestion are two significant factors that contribute to renal dysfunction in heart failure. The kidneys, primarily responsible for fluid balance in the body, are adversely affected due to compromised cardiac output and increased venous pressure. In response to reduced renal perfusion, the kidneys activate neurohumoral mechanisms to restore balance. However, these mechanisms can be...
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Updated: May 28, 2025

Assessment of Vascular Function in Patients With Chronic Kidney Disease
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Endothelial dysfunction in the aging kidney.

Mila Borri1, Marleen E Jacobs2,3, Peter Carmeliet1,4

  • 1Laboratory of Angiogenesis and Vascular Metabolism, Department of Oncology and Leuven Cancer Institute (LKI), KU Leuven, VIB Center for Cancer Biology, VIB, Leuven, Belgium.

American Journal of Physiology. Renal Physiology
|February 11, 2025
PubMed
Summary
This summary is machine-generated.

Kidney aging impairs renal endothelial cells (RECs), driving chronic kidney disease (CKD). Targeting REC senescence and metabolism may offer new therapies for aging kidneys and CKD patients.

Keywords:
endothelial cellsendothelial dysfunctionkidney agingmetabolismsenotherapies

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Area of Science:

  • Gerontology
  • Nephrology
  • Vascular Biology

Background:

  • Global population aging presents significant health challenges, particularly concerning age-related diseases affecting organ function.
  • Kidneys are highly susceptible to aging, exhibiting reduced function, impaired regeneration, and increased injury risk, leading to a higher prevalence of chronic kidney disease (CKD).
  • Dysfunction of renal endothelial cells (RECs) is a critical factor in kidney aging, impacting vascular integrity and overall kidney health.

Purpose of the Study:

  • To review the structural and functional changes in the aging kidney's vasculature.
  • To describe the aged endothelium phenotype and focus on molecular/metabolic changes driving endothelial cell (EC) senescence.
  • To overview senotherapies targeting ECs, particularly those modulating metabolism, for potential therapeutic applications.

Main Methods:

  • Literature review focusing on the effects of aging on renal macrovascular and microvascular compartments.
  • Phenotypic description of aged endothelium, including molecular and metabolic rewiring.
  • Overview of senotherapeutic strategies targeting EC senescence and metabolism.

Main Results:

  • Aging significantly alters kidney structure and function, with RECs undergoing senescence and metabolic reprogramming.
  • Endothelial cell senescence in the kidney contributes to vascular dysfunction and microenvironmental changes.
  • Senotherapies targeting EC metabolism show promise for mitigating age-related kidney decline.

Conclusions:

  • Understanding REC aging and senescence is crucial for developing interventions against kidney aging and CKD.
  • Targeting EC senescence and metabolism offers potential therapeutic avenues for improving kidney health in aging populations.
  • Rejuvenating RECs could benefit CKD patients and enhance outcomes for aged kidney transplants.