Related Experiment Video

Updated: Jun 18, 2026

Mechanism of Kemeng Fang's Inhibition of Podocyte Apoptosis in Rats with Membranous Nephropathy through the PI3K/AKT Signaling Pathway
07:15

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

Published on: August 23, 2024

Membranoproliferative glomerulonephritis

Bassam Alchi1, David Jayne

  • 1Renal Unit, Addenbrooke's Hospital, Cambridge, CB2 0QQ, UK.

Pediatric Nephrology (Berlin, Germany)
|November 13, 2009
PubMed

Insights

Membranoproliferative glomerulonephritis (MPGN) is a rare kidney disease affecting young people. While treatments are debated, steroids may help children with nephrotic symptoms, and new therapies are needed for better outcomes.

Area of Science:

  • Nephrology
  • Immunology
  • Pathology

Background:

  • Membranoproliferative glomerulonephritis (MPGN) is an uncommon kidney disorder.
  • Characterized by mesangial cell proliferation and glomerular capillary wall changes.
  • Subdivided into idiopathic and secondary forms, with three pathological types (I, II, III).

Purpose of the Study:

  • To summarize the characteristics, diagnosis, and treatment of MPGN.
  • To highlight the role of complement activation in different MPGN types.
  • To discuss the prognosis and therapeutic challenges in MPGN.

Main Methods:

  • Differential diagnosis relies on clinical features, laboratory data, and renal histopathology.
  • Classification into types I, II, and III based on pathological findings.
  • Analysis of complement activation pathways and clinical presentations.

Main Results:

  • All MPGN types are associated with hypocomplementemia, with varying complement activation mechanisms.
  • Type II MPGN (dense deposit disease) is linked to C3 nephritic factor.
  • MPGN often affects children and young adults, presenting with nephrotic/nephritic syndrome or asymptomatic disease.
  • Slow progression to end-stage renal disease and post-transplant recurrence (especially type II) are common.

Conclusions:

  • Long-term steroid treatment may benefit children with nephrotic-range proteinuria.
  • Treatment efficacy remains controversial, necessitating further research.
  • Improved renal outcomes depend on evaluating more selective agents in controlled studies.

More Related Videos

Glomerular Outgrowth as an Ex Vivo Assay to Analyze Pathways Involved in Parietal Epithelial Cell Activation06:39

Glomerular Outgrowth as an Ex Vivo Assay to Analyze Pathways Involved in Parietal Epithelial Cell Activation

Published on: August 19, 2020

Isolation of Glomeruli and In Vivo Labeling of Glomerular Cell Surface Proteins09:12

Isolation of Glomeruli and In Vivo Labeling of Glomerular Cell Surface Proteins

Published on: January 18, 2019

Related Concept Videos

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...
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...
Diabetic Nephropathy01:28

Diabetic Nephropathy

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 occur due to afferent arteriolar...
Glomerular Filtration: Net Filtration Pressure01:26

Glomerular Filtration: Net Filtration Pressure

Glomerular filtration, a key process in the kidneys, is regulated by three main pressures: Glomerular blood hydrostatic pressure (GBHP), Capsular hydrostatic pressure (CHP), and Blood colloid osmotic pressure (BCOP).
GBHP, with an average value of 55 mmHg, promotes filtration by pushing water and solutes through the filtration membrane. This is balanced by two opposing forces: CHP, a "back pressure" exerted against the filtration membrane by fluid already in the capsular space and renal tubule,...
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...
Streptococcal Pharyngitis01:27

Streptococcal Pharyngitis

Streptococcal pharyngitis, commonly known as “strep throat,” is an acute infection of the oropharyngeal tissues caused by the Gram‑positive Group A Streptococcus (Streptococcus pyogenes). Transmission occurs primarily through respiratory droplets expelled during coughing, sneezing, or talking.Mechanisms of Host Entry and Immune EvasionUpon entering the host, S. pyogenes adheres to the mucosal epithelial cells of the pharynx via surface proteins, notably lipoteichoic acid and the antiphagocytic...