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Related Concept Videos

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 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 V: Nursing Management01:28

Urinary Tract Calculi V: Nursing Management

AssessmentSubjective Data: Obtain a detailed health history, including any recent or chronic urinary tract infections, periods of immobilization, previous episodes of renal calculi, and medical conditions such as gout, benign prostatic hyperplasia, or hyperparathyroidism. Review the medication history for drugs that may influence stone formation, including allopurinol, analgesics, loop diuretics, or thiazide diuretics. Document the use of long-term indwelling catheters and any past surgical...
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,...
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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Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
07:45

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Published on: February 9, 2021

Renal stone disease.

John A Sayer1

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

Nephron. Physiology
|November 13, 2010
PubMed
Summary
This summary is machine-generated.

Molecular genetics advances understanding of renal stone disease, identifying genetic defects in rare and common forms. This knowledge aids in developing targeted therapies for preventing kidney stone formation.

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Area of Science:

  • Nephrology
  • Molecular Genetics
  • Medical Biochemistry

Background:

  • Renal stone disease (nephrolithiasis) arises from crystallization in the renal tract, stemming from single gene disorders or idiopathic conditions.
  • Stones can be composed of calcium salts, uric acid, cystine, and other insoluble complexes.
  • Understanding the underlying pathology is crucial for effective management.

Purpose of the Study:

  • To explore the role of molecular genetics in understanding renal stone formation.
  • To identify genetic factors contributing to both rare and common forms of nephrolithiasis.
  • To elucidate the molecular basis of metabolic risk factors associated with kidney stones.

Main Methods:

  • Review of molecular genetics approaches used to identify candidate genes in stone formers.
  • Analysis of genetic defects underlying single gene stone-forming disorders.
  • Investigation into the genetic basis of idiopathic renal stone formation and associated metabolic risk factors.

Main Results:

  • Molecular genetics has significantly advanced the understanding of specific stone-forming conditions.
  • Single gene disorders often involve molecular defects leading to metabolic risk factors for stone formation.
  • While candidate genes for idiopathic stone formers are identified, the genetic basis of familial hypercalciuria and calcium stones remains unclear. The molecular basis of hyperuricosuria, hyperoxaluria, and hypocitraturia is being elucidated.

Conclusions:

  • Discovering molecular defects in renal stone disease enhances understanding of pathogenesis.
  • This knowledge facilitates genetic screening and the development of targeted drug therapies.
  • Future research aims to fully unravel the genetic underpinnings of all renal stone types for improved prevention.