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Related Concept Videos

Urinary Tract Calculi I: Introduction01:28

Urinary Tract Calculi I: Introduction

Renal calculi, or kidney stones, are solid deposits of minerals and salts formed inside the kidneys. In medical terminology, "calculus" refers to the stone itself, while "lithiasis" describes the process of stone formation. Depending on their location within the urinary system, these stones may be classified as either urolithiasis, when situated within the urinary tract, or nephrolithiasis, when located within the kidneys. Each term signifies the specific impact of the stone.Predisposition...
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations01:26

Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations

Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
Urinary Tract Calculi III: Medical Management01:30

Urinary Tract Calculi III: Medical Management

The diagnosis of renal calculi involves several imaging techniques, including non-contrast CT scans and ultrasound. These methods help visualize kidney stones, assess their size and location, and detect possible obstructions. Additionally, Measuring urine pH is useful for diagnosing specific stone types, such as struvite (alkaline pH) and uric acid stones (acidic pH). Cystine stones are primarily linked to cystinuria, a genetic condition. A urinalysis helps detect blood in the urine (hematuria)...
Urinary Tract Calculi IV: Nutrition Therapy and Prevention01:27

Urinary Tract Calculi IV: Nutrition Therapy and Prevention

Management of renal calculi focuses on effective strategies like tailored nutrition and hydration therapy. Adjusting diet and fluid intake reduces stone formation and recurrence, making these interventions simple yet powerful in kidney stone prevention and management.Understanding Kidney StonesKidney stones form when calcium, oxalate, uric acid, and cystine concentrate and crystallize in urine. Factors contributing to their formation include genetic predisposition, certain medical conditions,...
Nephrons01:10

Nephrons

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 happens...
Urinary Tract Calculi VI: Surgical Management01:25

Urinary Tract Calculi VI: Surgical Management

Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...

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Related Experiment Video

Updated: Jul 2, 2026

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
07:45

Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis

Published on: February 9, 2021

The genetics of nephrolithiasis.

John A Sayer1

  • 1Institute of Human Genetics, International Centre for Life, Newcastle University, Newcastle upon Tyne, UK. j.a.sayer@ncl.ac.uk

Nephron. Experimental Nephrology
|September 2, 2008
PubMed
Summary

Genetics plays a key role in kidney stone formation (nephrolithiasis). Understanding the genetic basis of metabolic risk factors like hypercalciuria is crucial for future research and treatment.

Area of Science:

  • Nephrology
  • Human Genetics
  • Metabolic Disorders

Background:

  • Renal stone formation (nephrolithiasis) is a significant global health issue with recognized heritability.
  • The condition is multifactorial, involving interactions between genetic and environmental factors.
  • While rare single-gene disorders offer insights, understanding common forms requires examining genetic components of metabolic risk factors.

Purpose of the Study:

  • To review the genetics of nephrolithiasis.
  • To explore the genetic underpinnings of metabolic risk factors associated with kidney stone formation.
  • To highlight the potential of the genomic era in defining genetic defects in nephrolithiasis.

Main Methods:

  • Literature review focusing on genetic factors in nephrolithiasis.

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Spectral Karyotyping to Study Chromosome Abnormalities in Humans and Mice with Polycystic Kidney Disease
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Last Updated: Jul 2, 2026

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  • Analysis of genetic components contributing to metabolic risk factors.
  • Discussion of specific conditions like hypercalciuria, hyperoxaluria, and cystinuria.

    • Main Results:

    • Hypercalciuria is identified as the primary risk factor for calcium stone formation.
    • Genetic contributions to other risk factors, including hyperoxaluria and cystinuria, are discussed.
    • The review emphasizes the complex genetic basis of nephrolithiasis.

    Conclusions:

    • The genetic basis of nephrolithiasis is increasingly understood.
    • Identifying genetic components of metabolic risk factors is key to unraveling the condition's complexity.
    • Genomic approaches hold promise for defining the genetic defects underlying kidney stone formation.