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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...
Urologic Endoscopic Procedure: Cystoscopic Examination01:28

Urologic Endoscopic Procedure: Cystoscopic Examination

Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
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 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...
Urine Studies I: Urinalysis01:29

Urine Studies I: Urinalysis

Urinalysis is a widely used diagnostic test that analyzes urine's physical, chemical, and microscopic characteristics. Healthcare providers use it to detect and monitor various health conditions, including renal disease, urinary tract infections (UTIs), diabetes, and metabolic or systemic disorders.Components of UrinalysisUrinalysis consists of three primary components: physical, chemical, and microscopic examination. Each provides unique insights into the urine sample and, by extension, the...
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Cystic Fibrosis: Pathogenesis

Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...

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Related Experiment Video

Updated: Jun 15, 2026

Implementing Patch Clamp and Live Fluorescence Microscopy to Monitor Functional Properties of Freshly Isolated PKD Epithelium
08:46

Implementing Patch Clamp and Live Fluorescence Microscopy to Monitor Functional Properties of Freshly Isolated PKD Epithelium

Published on: September 1, 2015

[Cystinuria].

Luca Dello Strologo1, Chiara Laurenzi, Francesco Emma

  • 1Dipartimento Nefrologia Urologia, Ospedale Pediatrico Bambino Gesù, Istituto di Ricerca Scientifica, Roma. dellostrologo@opbg.net

Giornale Italiano Di Nefrologia : Organo Ufficiale Della Societa Italiana Di Nefrologia
|March 2, 2010
PubMed
Summary
This summary is machine-generated.

Cystinuria is a genetic kidney stone disorder where tubules fail to reabsorb cystine. Treatment involves medication and monitoring, but can be effective for managing recurrent kidney stones.

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The Use of Cystometry in Small Rodents: A Study of Bladder Chemosensation
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Published on: August 21, 2012

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Last Updated: Jun 15, 2026

Implementing Patch Clamp and Live Fluorescence Microscopy to Monitor Functional Properties of Freshly Isolated PKD Epithelium
08:46

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Published on: September 1, 2015

The Use of Cystometry in Small Rodents: A Study of Bladder Chemosensation
08:08

The Use of Cystometry in Small Rodents: A Study of Bladder Chemosensation

Published on: August 21, 2012

Area of Science:

  • Nephrology
  • Genetics
  • Biochemistry

Context:

  • Cystinuria is an inherited disorder affecting renal tubule function.
  • It leads to recurrent kidney stones due to impaired cystine and dibasic amino acid reabsorption.
  • The condition exhibits variable severity, often more pronounced in males.

Purpose:

  • To describe the characteristics and genetic basis of cystinuria.
  • To outline the clinical presentation and management strategies.
  • To highlight the importance of monitoring treatment efficacy and side effects.

Summary:

  • Cystinuria involves defective proximal renal tubule reabsorption of cystine and dibasic amino acids, causing kidney stone formation.
  • Two genetic types exist, with differing severity and heterozygote implications.
  • Medical interventions, including cystine-binding drugs and alkali therapy, are effective but require diligent monitoring of urine parameters and potential proteinuria.

Impact:

  • Provides a comprehensive overview of cystinuria for clinicians and researchers.
  • Emphasizes the need for personalized treatment and vigilant patient surveillance.
  • Contributes to understanding the genetic and clinical spectrum of this rare kidney stone disease.