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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...

Nephrotic Syndrome II : Assessment and Medical Management

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...

Chronic Kidney Disease II: Clinical Manifestations

Chronic Kidney Disease II: Clinical Manifestations

Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...

Nephrotic Syndrome III : Nursing Management

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Updated: Jul 10, 2026

Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease

Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease

Published on: February 3, 2012

C1q nephropathy in two young sisters.

Jameela A Kari¹, Sawsan M Jalalah

¹Pediatrics Department, King AbdulAziz University Hospital, P.O. Box 80215, Jeddah 21589, Saudi Arabia. jkari@doctors.org.uk

Pediatric Nephrology (Berlin, Germany)

|October 24, 2007

Summary

C1q nephropathy (C1qNP) is a rare kidney disease. This study details two sisters with early-onset C1qNP, highlighting its early childhood presentation and sibling occurrence.

Area of Science:

Nephrology
Immunology
Pediatrics

Background:

C1q nephropathy (C1qNP) is an uncommon glomerulonephritis characterized by C1q deposits.
It is distinct from lupus nephritis, lacking systemic lupus erythematosus evidence.

Observation:

Two young sisters presented with steroid-resistant nephrotic syndrome before age two.
Both exhibited poor response to immunosuppressive therapy.
Normal serum complement, negative ANA, and hepatitis B antigen were noted.

Findings:

Renal biopsies showed mesangioproliferative glomerulonephritis with diffuse "full-house" mesangial immunofluorescence.
C1q immunofluorescence was intense and co-dominant with IgG.
Electron microscopy confirmed dense mesangial deposits.

Related Experiment Videos

Last Updated: Jul 10, 2026

Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease

Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease

Published on: February 3, 2012

Implications:

This is the first report of C1q nephropathy in siblings.
The findings emphasize C1qNP's potential for early childhood onset and familial occurrence.
Early diagnosis and understanding familial predisposition are crucial for C1qNP management.