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Related Concept Videos

Nephrons01:10

Nephrons

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 happens...
Renal Corpuscle01:20

Renal Corpuscle

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 capillaries...
Physiology of Urine Formation01:24

Physiology of Urine Formation

Urine formation is an essential function of the human body. It plays a critical role in maintaining homeostasis by regulating the volume and composition of body fluids. The kidneys, the primary organs involved in this process, filter blood to remove waste products and excess substances, ultimately producing urine.
Glomerular Filtration
The first stage in urine formation is glomerular filtration. Each kidney contains approximately 1 million nephrons, the functional units of filtration, with a...
Disorders of the Urinary System01:20

Disorders of the Urinary System

The urinary system is responsible for eliminating waste and excess fluids from the body. However, disorders of the urinary system can arise due to various reasons like infections, stress, age, congenital abnormalities, and lifestyle.
Urinary tract infections (UTIs) are one of the most common urinary system disorders. They are caused by bacteria that enter the urethra and can spread to the bladder resulting in cystitis. Pyelonephritis is the result of a UTI that has ascended to the level of the...
Acute Kidney Injury II: Pathophysiology01:29

Acute Kidney Injury II: Pathophysiology

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...
Renal Tubule and Collecting Duct01:24

Renal Tubule and Collecting Duct

The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...

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Related Experiment Video

Updated: May 25, 2026

Generation of Patient-Derived Podocytes from Skin Biopsies
08:52

Generation of Patient-Derived Podocytes from Skin Biopsies

Published on: May 26, 2023

Relationship between urinary podocytes and kidney diseases.

Dong Sun1, Xudong Zhao, Li Meng

  • 1Department of Nephrology, Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu, PR China. sdxyfy@yahoo.cn

Renal Failure
|January 19, 2012
PubMed
Summary

Detecting podocalyxin (PDX) in urine offers a noninvasive method to assess podocyte loss, aiding in early diagnosis and monitoring of glomerular diseases like IgA nephropathy and diabetic nephropathy.

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Area of Science:

  • Nephrology
  • Biomarker Discovery
  • Diagnostic Medicine

Background:

  • Podocyte loss is a key factor in glomerular disease progression.
  • Urinary podocyte detection can predict renal damage and disease advancement.
  • Noninvasive methods for assessing podocyte loss are crucial for early diagnosis.

Purpose of the Study:

  • To highlight podocalyxin (PDX) as a robust urinary biomarker for podocyte loss.
  • To emphasize the diagnostic potential of urinary podocyte detection in various glomerular diseases.
  • To discuss the implications of urinary podocyte analysis for disease evaluation and management.

Main Methods:

  • Detection of podocalyxin (PDX) in urine samples.
  • Correlation of urinary PDX levels with podocyte loss in glomerular diseases.
  • Review of existing literature on urinary podocytes and renal disease markers.

Main Results:

  • Urinary podocalyxin (PDX) levels correlate with podocyte loss.
  • PDX is expressed on podocytes and other renal cells, making it a detectable marker.
  • Urinary podocytes are found in patients with IgA nephropathy, lupus nephritis, and diabetic nephropathy.

Conclusions:

  • Urinary podocyte detection, particularly via PDX, is a valuable noninvasive tool for diagnosing and monitoring glomerular diseases.
  • This method can provide insights into disease activity, dedifferentiation, and regenerative potential.
  • Wider adoption of urinary podocyte detection technology has significant clinical implications.