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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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Diabetic Nephropathy01:28

Diabetic Nephropathy

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Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration...
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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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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

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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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Related Experiment Video

Updated: May 5, 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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Mechanism of Kemeng Fang's Inhibition of Podocyte Apoptosis in Rats with Membranous Nephropathy through the PI3K/AKT Signaling Pathway

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[Membranous nephropathy].

Lucile Mercadal1

  • 1Service de néphrologie, groupe hospitalier Pitié-Salpêtrière, 83, boulevard de l'Hôpital, 75013 Paris, France.

Nephrologie & Therapeutique
|December 10, 2013
PubMed
Summary

Membranous nephropathy involves immune deposits damaging kidney filters. Early prognostic markers and combined immunosuppressive therapies improve kidney survival, avoiding steroids alone.

Keywords:
CiclosporineCorticoidsCorticoïdesCyclophosphamidCyclophosphamideCyclosporineGlomérulopathie extramembraneuseMembranous nephropathyMycophenolate mofetilNéphrite de HeymannRituximabTacrolimus

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Area of Science:

  • Nephrology
  • Immunology
  • Pathology

Context:

  • Membranous nephropathy (MN) is a leading cause of nephrotic syndrome in adults.
  • Characterized by immune complex deposition on the outer glomerular basement membrane.
  • Idiopathic form is most common, with significant renal survival rates at 5 and 10 years (90% and 65%).

Purpose:

  • To review the pathophysiology, prognosis, and treatment of membranous nephropathy.
  • To highlight key predictors of renal outcome.
  • To discuss current and emerging therapeutic strategies.

Summary:

  • MN involves complement and oxidation-induced glomerular basement membrane lesions.
  • Prognostic models utilize proteinuria, renal function decline, and urinary biomarkers (C5b-9, β2/α1 microglobulin, IgG).
  • Symptomatic treatment includes anticoagulation, ACE inhibitors/ARBs, and statins. Immunosuppression is indicated for high-risk patients, with combined corticoids and alkylating agents or ACTH/steroids plus mycophenolate mofetil showing efficacy in reducing end-stage renal disease risk.

Impact:

  • Identifies key urinary biomarkers for predicting membranous nephropathy outcomes.
  • Clarifies the role of immunosuppressive therapy, emphasizing combination treatments over corticosteroids alone.
  • Provides evidence-based guidance for managing membranous nephropathy, aiming to preserve renal function and improve patient survival.