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Acute Pyelonephritis I: Introduction

Acute Pyelonephritis I: Introduction

Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such as Proteus,...

Acute Kidney Injury II: Pathophysiology

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...

Acute Pyelonephritis II: Diagnostic Studies and Management

Acute Pyelonephritis II: Diagnostic Studies and Management

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...

Streptococcal Pharyngitis

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...

Nephrotic Syndrome I : Introduction

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...

Renal Corpuscle

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.
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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...

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Updated: Jun 5, 2026

An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney

An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney

Published on: November 1, 2018

Infection-related glomerulonephritis.

Sergey V Brodsky, Tibor Nadasdy

Contributions to Nephrology

|January 22, 2011

Summary

Infection-related glomerulonephritis is shifting from streptococcal to staphylococcal causes. This review examines the limited, yet valuable, animal models used to study these kidney diseases.

Area of Science:

Nephrology
Immunology
Infectious Diseases

Background:

The epidemiology of infection-related glomerulonephritis is evolving.
Classic post-streptococcal glomerulonephritis incidence is declining in developed nations.
Staphylococcus infection-related glomerulonephritis is increasingly observed.

Purpose of the Study:

To review existing animal models of infection-associated glomerulonephritis.
To highlight challenges in developing clinically relevant models.
To discuss the contribution of these models to understanding the disease.

Main Methods:

Literature review of existing animal models for infection-related glomerulonephritis.
Analysis of challenges in model development and interpretation.

More Related Videos

Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis

Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis

Published on: July 18, 2017

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

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

Published on: January 18, 2019

Related Experiment Videos

Last Updated: Jun 5, 2026

An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney

An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney

Published on: November 1, 2018

Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis

Intrarenal Injection of Escherichia coli in a Rat Model of Pyelonephritis

Published on: July 18, 2017

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

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

Published on: January 18, 2019

Focus on species-specific immune responses and susceptibility differences.

Main Results:

Clinically relevant animal models for infection-related glomerulonephritis are scarce.
Species-specific immune responses complicate model interpretation.
Despite limitations, animal models have advanced understanding.

Conclusions:

Developing effective animal models for infection-related glomerulonephritis remains challenging.
Understanding species-specific factors is crucial for model utility.
Existing models, though limited, are vital for research into glomerulonephritis pathogenesis.