Related Experiment Video
Updated: Jun 10, 2025
07:45
Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
Published on: February 9, 2021
3.6K
Effects of multiple fluid intake on Urolithiasis by mendelian randomization study
Qian Zhang1,2, Zedan Guo3,4, JinYuan Zhang5
1Department of Medical Administration, Peking University Shenzhen Hospital, Peking University, Shenzhen, China.
Scientific Reports
|October 10, 2024
Summary
Drinking tea and coffee may reduce the risk of urolithiasis (kidney stones). However, increased milk and alcohol consumption appears to raise the risk of developing kidney stones.
Area of Science:
- Urology
- Nutritional Epidemiology
- Genetic Epidemiology
Background:
- Urolithiasis represents a significant global health challenge due to its prevalence and recurrence.
- Understanding the etiological factors, including dietary habits, is crucial for effective prevention strategies.
Purpose of the Study:
- To investigate the potential causal links between the intake of various fluids and the risk of developing urolithiasis.
- To utilize Mendelian randomization (MR) to assess these associations, minimizing confounding factors.
Main Methods:
- Employed univariable and multivariable Mendelian randomization (MR) approaches.
- Utilized genetic data for urolithiasis from the FinnGen Consortium (n=400,681).
- Sourced genetic instruments for nine fluid types from large-scale genome-wide association studies (GWAS) meta-analyses.
Main Results:
- Genetically predicted coffee intake showed a protective effect against upper urinary calculi.
- Increased tea consumption was significantly associated with a reduced risk of urolithiasis (OR: 0.473).
- Higher intake of milk and alcohol consumption frequency were linked to an increased risk of upper urinary calculi.
Conclusions:
- Tea consumption is associated with a reduced risk of urolithiasis.
- Milk and alcohol intake may increase the risk of developing upper urinary calculi.
- Findings can inform public health recommendations for urolithiasis prevention.
Related Concept Videos
01:27Urinary Tract Calculi IV: Nutrition therapy and prevention
2
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,...
2
01:30Urinary Tract Calculi III: Medical Management
2
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)...
2
01:28Urinary Tract Calculi V: Nursing Management
2
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...
2
01:28Urinary Tract Calculi I: Introduction
2
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...
2
01:25Urinary Tract Calculi VI: Surgical Management
2
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...
2
01:26Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations
2
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...
2