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Published on: February 9, 2021
CHARACTERISTICS OF CERTAIN INDICES OF MINERAL METABOLISM IN CHILDREN WITH KIDNEY CALCULI
Iryna S Lembryk1, Oksana V Tymoshchuk1, Lesia Ya Ivanyshyn1
1IVANO-FRANKIVSK NATIONAL MEDICAL UNIVERSITY, IVANO-FRANKIVSK, UKRAINE.
Insights
Children with kidney stones, particularly oxalate-calcium nephropathy, show significant bone density issues. These findings highlight a risk for osteopenic syndrome in affected children.
Area of Science:
- Pediatric Nephrology
- Bone Metabolism
- Urolithiasis Research
Background:
- Kidney calculi are a growing concern in pediatric populations.
- Bone density disturbances are increasingly recognized in children with urolithiasis.
Purpose of the Study:
- To investigate bone density index abnormalities in pediatric patients diagnosed with kidney calculi.
- To identify specific metabolic and developmental factors associated with bone density changes in these children.
Main Methods:
- Evaluated 175 children with kidney calculi using biochemical analysis, ultrasonography, voiding cystourethrography, and excretory urography.
- Assessed bone mineral density via ultrasonic densitometry.
- Analyzed data using standard statistical methods.
Main Results:
- Oxaluria and oxalate-calcium nephropathy were prevalent (60.0% and 30.0%, respectively).
- Signs of connective tissue dysplasia were observed in 50.0% of patients.
- Children with oxalate-calcium nephropathy exhibited elevated bone alkaline and acid phosphatase isoenzymes, decreased ionized calcium, hypomagnesemia, and hypophosphatemia.
Conclusions:
- Children diagnosed with oxalate-calcium nephropathy are at high risk for developing osteopenic syndrome.
- Early detection and management of bone metabolism disturbances are crucial in pediatric kidney stone patients.
Objective:
The aim: To study the violations of bone density indices in patients with kidney calculi.
Patients And Methods:
Materials and methods: 175 children with different types of kidney calculi were examined and treated in Ivano-Frankivsk Regional Children's Consultative Polyclinics and Hospital, from 2016 to 2019 inclusively. Comprehensive metabolic panel involved by means of generally accepted biochemical methods. Sonography of the urinary tract was carried out. Voiding cystourethrography and excretory urography were performed. Bone mineral density was evaluated by means of ultrasonic densitometry. Statistical processing of the obtained data was carried out according to standard methods of variation statistics.
Results:
Results: In patients with kidney calculi, oxaluria and oxalate-calcium nephropathy (60.0% and 30.0%, p <0.05) occurred most frequently. Signs of syndrome of undifferentiated connective tissue dysplasia - postural malformation (50.0%), thoracic kyphosis (25.0%), and stigmas of dysembryogenesis (25.0%) were noticed. In the majority of children with oxalate-calcium nephropathy, levels of the bone alkaline and acid phosphatase isoenzymes in a blood serum were significantly high, indicating severity of the resorption and disorders in development of the bone tissue. In these children, decreased fraction of ionized calcium, hypomagniemia and hypophosphatemia were observed.
Conclusion:
Conclusions: Children with oxalate-calcium nephropathy are in group of risk for osteopenic syndrome.
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