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Related Concept Videos

Kidney Structure01:45

Kidney Structure

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The kidneys are two large bean-shaped organs located in the upper abdomen. They filter the blood several times a day to remove toxins and rebalance water and electrolytes of the circulatory system via the renal veins. The kidneys receive blood directly from the heart via the renal arteries. These arteries enter the kidney at the hilum, the concave surface of the bean, where they branch and divide into smaller vessels and capillaries.
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Nephrons01:10

Nephrons

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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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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.
Glomerulus: Structure and Function
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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Chronic Kidney Disease I: Introduction01:25

Chronic Kidney Disease I: Introduction

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Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
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Chronic Kidney Disease II: Clinical Manifestations01:24

Chronic Kidney Disease II: Clinical Manifestations

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Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
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Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

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Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
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Related Experiment Video

Updated: Aug 18, 2025

Analysis of Nephron Composition and Function in the Adult Zebrafish Kidney
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Analysis of Nephron Composition and Function in the Adult Zebrafish Kidney

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Structural and Functional Changes in Aging Kidneys.

Jill Dybiec1, Magdalena Szlagor1, Ewelina Młynarska1

  • 1Department of Nephrology, Hypertension and Family Medicine, Medical University of Lodz, Ul. Żeromskiego 113, 90-549 Łódź, Poland.

International Journal of Molecular Sciences
|December 11, 2022
PubMed
Summary

Kidney health is vital for longevity. This review explores how factors like hypertension and diabetes accelerate kidney aging, and discusses interventions like medications and lifestyle changes to mitigate these effects.

Keywords:
agingelderlyglomerular filtration ratekidney functionnephrosclerosis

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Related Experiment Videos

Last Updated: Aug 18, 2025

Analysis of Nephron Composition and Function in the Adult Zebrafish Kidney
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Published on: August 9, 2014

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Assessment of Vascular Function in Patients With Chronic Kidney Disease
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Area of Science:

  • Nephrology
  • Gerontology
  • Physiology

Background:

  • Renal function is a key predictor of longevity, making early diagnosis of kidney dysfunction critical.
  • Kidneys are vulnerable to aging, and conditions like hypertension, diabetes, and obesity can accelerate this process, disrupting homeostasis.
  • Assessing macroscopic and microscopic changes is essential for understanding age-related renal decline.

Purpose of the Study:

  • To review the aging process in kidneys.
  • To identify factors that accelerate renal aging.
  • To explore interventions for mitigating age-related renal changes.

Main Methods:

  • Review of scientific literature on renal aging.
  • Analysis of macroscopic changes (e.g., decreased renal parenchyma volume, increased adipose tissue, surface roughness, cysts).
  • Analysis of microscopic changes (e.g., glomerular basement membrane thickening, nephrosclerosis, extracellular matrix accumulation, mesangial widening).

Main Results:

  • Age-related macroscopic changes include reduced kidney volume and increased sinus fat.
  • Microscopic changes involve glomerular basement membrane thickening, nephrosclerosis, and mesangial widening.
  • Health maintenance, including specific medications and lifestyle choices, can mitigate unfavorable renal aging.

Conclusions:

  • Maintaining kidney health is paramount for longevity.
  • Interventions such as renin-angiotensin-aldosterone system blockers, resveratrol, dietary adjustments, and lifestyle modifications can help slow renal aging.
  • Understanding and addressing age-related renal changes is crucial for preserving overall health and extending lifespan.