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Related Concept Videos

Nephrotic Syndrome I : Introduction01:24

Nephrotic Syndrome I : Introduction

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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...
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Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

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Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
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Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

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Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
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Nephrotic Syndrome II : Assessment and Medical Management01:26

Nephrotic Syndrome II : Assessment and Medical Management

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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...
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Glomerular Filtration01:15

Glomerular Filtration

5.9K
The filtration membrane in the renal system is a highly specialized structure essential for filtering blood. It consists of glomerular capillaries and podocytes, forming a selective barrier that permits the passage of water and small solutes while restricting most plasma proteins and blood cells.
Components of the Filtration Membrane
The filtration process involves three key layers: the glomerular endothelial cells, the basement membrane, and the podocyte-formed filtration slits.
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Glomerular Filtration Rate and its Regulation01:28

Glomerular Filtration Rate and its Regulation

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The Glomerular Filtration Rate (GFR) is a measure of kidney function, reflecting the volume of filtrate formed per minute in the kidneys. On average, GFR is approximately 125 mL/min in males and 105 mL/min in females. Maintaining a relatively constant GFR is essential for the kidneys to effectively regulate body fluid homeostasis and maintain extracellular stability.
GFR regulation involves two primary intrinsic controls: the myogenic and tubuloglomerular feedback mechanisms.
The myogenic...
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Related Experiment Video

Updated: Feb 22, 2026

Mechanism of Kemeng Fang's Inhibition of Podocyte Apoptosis in Rats with Membranous Nephropathy through the PI3K/AKT Signaling Pathway
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Published on: August 23, 2024

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[Membranous glomerulonephritis (MGN), ongoing studies].

Gaetano La Manna1, Olga Baraldi1, Vania Cunia1

  • 1S.C. di Nefrologia, Dialisi e Trapianto. Azienda Ospedaliero-Universitaria Policlinico di Sant'Orsola, Alma Mater Studiorum-Università di Bologna, Italy.

Giornale Italiano Di Nefrologia : Organo Ufficiale Della Societa Italiana Di Nefrologia
|October 1, 2017
PubMed
Summary

Membranous nephropathy (MN) is a leading cause of adult nephrotic syndrome. Understanding podocyte autoantibody mechanisms has led to targeted therapies like rituximab, showing promise for remission.

Keywords:
ECULIZUMABMembranous GlomerulonephritisRituximabmembranous nephropathy

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Area of Science:

  • Nephrology
  • Immunology
  • Pathophysiology

Background:

  • Membranous nephropathy (MN) is the primary cause of nephrotic syndrome in adults, accounting for 20% of cases.
  • Recent research highlights the role of podocytes, where environmental factors trigger autoantibody responses against podocyte epitopes.
  • This understanding has revolutionized therapeutic strategies for MN.

Purpose of the Study:

  • To review the current understanding of MN pathogenesis.
  • To discuss novel therapeutic approaches targeting the identified mechanisms.
  • To evaluate the efficacy and safety of emerging treatments for MN.

Main Methods:

  • Review of recent clinical trials and research on MN.
  • Analysis of immunological pathways involved in MN.
  • Evaluation of data from studies on targeted therapies such as rituximab.

Main Results:

  • Rituximab, targeting CD20+ B-cells, has demonstrated a 60% remission rate in MN patients (GEMRITUX trial) with an acceptable safety profile.
  • Novel therapies targeting specific disease mechanisms, including belimumab and non-specific agents like ACTH, are being explored.
  • Emerging treatments like ofatumumab, bortezomib, and eculizumab offer new avenues for managing glomerular diseases.

Conclusions:

  • The elucidation of MN pathogenesis has paved the way for more specific and effective treatments.
  • Rituximab represents a significant advancement in MN therapy, offering high remission rates.
  • Further research is needed to establish optimal therapeutic regimens and explore the full potential of novel agents in managing MN and other glomerular diseases.