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Related Concept Videos

Nephrotic Syndrome I : Introduction01:24

Nephrotic Syndrome I : Introduction

Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of fluid...
Nephrotic Syndrome II : Assessment and Medical Management01:26

Nephrotic Syndrome II : Assessment and Medical Management

IntroductionNephrotic syndrome is a kidney disorder marked by excessive protein loss in the urine, leading to various systemic complications. This condition often results from damage to the glomeruli—the kidney's filtering units—causing proteinuria, low blood protein levels, and fluid retention. Understanding the assessment, diagnosis, and management of nephrotic syndrome is essential for effective treatment and prevention of further kidney damage.AssessmentPatient History: Document any history...
Nephrotic Syndrome III : Nursing Management01:24

Nephrotic Syndrome III : Nursing Management

Nursing management for nephrotic syndrome adapts as the disease progresses, with strategies evolving to address advancing symptoms and complications.Early-Stage Management In the early stages, nursing interventions for nephrotic syndrome resemble those used in managing acute glomerulonephritis, focusing on symptom monitoring, fluid balance, and managing mild to moderate edema.Vital Signs: Regularly monitor blood pressure, pulse, respiratory rate, and temperature to promptly identify...
Urine Studies I: Urinalysis01:29

Urine Studies I: Urinalysis

Urinalysis is a widely used diagnostic test that analyzes urine's physical, chemical, and microscopic characteristics. Healthcare providers use it to detect and monitor various health conditions, including renal disease, urinary tract infections (UTIs), diabetes, and metabolic or systemic disorders.Components of UrinalysisUrinalysis consists of three primary components: physical, chemical, and microscopic examination. Each provides unique insights into the urine sample and, by extension, the...
Serum Studies: Renal Function Tests01:24

Serum Studies: Renal Function Tests

Renal function tests are crucial for assessing kidney health, monitoring disease progression, and evaluating the kidneys' efficiency in waste elimination, fluid balance, and electrolyte regulation. These tests offer critical insights into kidney function, even though routine measurements may appear normal until there is a significant decline in the glomerular filtration rate or GFR. Typically, signs of kidney impairment only become evident when the GFR falls to about 50% of its normal level.
Acute Kidney Injury III: Clinical Manifestations01:29

Acute Kidney Injury III: Clinical Manifestations

Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...

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Related Experiment Video

Updated: Jul 18, 2026

Setup of Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry (CE-ICP-MS) for Quantification of Iron Redox Species (Fe(II), Fe(III))
04:48

Setup of Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry (CE-ICP-MS) for Quantification of Iron Redox Species (Fe(II), Fe(III))

Published on: May 4, 2020

Urinary iron speciation in nephrotic syndrome

M A Cooper1, B Buddington, N L Miller

  • 1Department of Medicine, Veterans Administration Medical Center, Denver, CO.

American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation
|February 1, 1995
PubMed
Summary

In nephrotic syndrome, reactive iron is released from transferrin in the kidneys. This labile iron may cause kidney tubule damage and contribute to renal failure in proteinuric states.

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Setup of Capillary Electrophoresis-Inductively Coupled Plasma Mass Spectrometry (CE-ICP-MS) for Quantification of Iron Redox Species (Fe(II), Fe(III))
04:48

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Area of Science:

  • Nephrology
  • Biochemistry
  • Toxicology

Background:

  • Nephrotic syndrome involves a glomerular protein leak, allowing proteins like transferrin into the tubule fluid.
  • Iron is normally bound to transferrin, but its state in urine during proteinuric conditions is not fully understood.

Purpose of the Study:

  • To investigate the form and reactivity of iron in the urine of patients with nephrotic syndrome.
  • To explore the potential role of this iron in causing tubulointerstitial damage.

Main Methods:

  • Analysis of iron's state in tubule fluid and urine at varying pH levels.
  • Assessment of iron's ability to catalyze DNA degradation.

Main Results:

  • At alkaline pH, iron remains bound to transferrin. As urine pH drops below 6, iron dissociates, becoming soluble, ultrafiltrable, and labile.
  • This non-transferrin-bound iron is chelated, likely by compounds like citrate.
  • Labile iron catalyzes DNA breakdown, indicating potential for free radical formation and tubule cell injury.

Conclusions:

  • Urine in proteinuric states contains significant amounts of reactive, non-transferrin-bound iron.
  • This reactive iron may be a key factor in the tubulointerstitial disease and renal failure associated with proteinuric conditions.