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Boadi EA, Shin S, Choi BE, Ly K, Raub CB, Bandyopadhyay BC. Sex-specific stone-forming phenotype in mice during hypercalciuria/urine alkalinization. J Transl Med 2024:102047. [PMID: 38452902 DOI: 10.1016/j.labinv.2024.102047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 01/31/2024] [Accepted: 02/21/2024] [Indexed: 03/09/2024] Open
Abstract
Gender disparities in kidney stone formation are well-known. Women generally have slightly acidic blood and higher urine pH when compared with men, which makes them more vulnerable to calcium stone formation, yet the mechanism is still unclear. We aimed to examine the role of sex in stone formation during hypercalciuria and urine alkalinization through acetazolamide (Acz) and calcium gluconate (CaG) supplementation, respectively, for 4 weeks in wild-type (WT) and hypercalciuric [TRPC3 KO (-/-)] male and female mice. Our goal is to develop calcium phosphate (CaP) and CaP+ calcium oxalate (CaOx) mixed stones in our animal model to understand the underlying sex-based mechanism of calcium nephrolithiasis (CaNL). Our results from the analyses of mice urine, serum, and kidney tissues show that female mice (WT and KO) produce more urinary CaP crystals, higher [Ca2+] and pH in urine compared to their male counterpart. We identified a sex-based relationship of stone-forming phenotypes (types of stones) in our mice model following urine alkalization/calcium supplementation and our findings suggest that female mice are more susceptible to CaP stones under those conditions. Calcification, fibrotic and inflammatory markers were elevated in treated females compared to their male counterparts, and in TRPC3 KO mice compared to their WT counterparts. Together these findings contribute to a mechanistic understanding of sex-influenced CaP and mixed stone formation that can be used as a basis for determining the factors in sex related clinical studies.
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Affiliation(s)
- Eugenia Awuah Boadi
- Calcium Signaling Laboratory, Research Service, Veterans Affairs Medical Center, 50 Irving Street, NW, Washington, DC 20422, USA
| | - Samuel Shin
- Calcium Signaling Laboratory, Research Service, Veterans Affairs Medical Center, 50 Irving Street, NW, Washington, DC 20422, USA; Department of Biomedical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington DC, 20064, USA
| | - Bok-Eum Choi
- Calcium Signaling Laboratory, Research Service, Veterans Affairs Medical Center, 50 Irving Street, NW, Washington, DC 20422, USA
| | - Khanh Ly
- Department of Biomedical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington DC, 20064, USA
| | - Christopher B Raub
- Department of Biomedical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington DC, 20064, USA
| | - Bidhan C Bandyopadhyay
- Calcium Signaling Laboratory, Research Service, Veterans Affairs Medical Center, 50 Irving Street, NW, Washington, DC 20422, USA; Department of Biomedical Engineering, The Catholic University of America, 620 Michigan Avenue NE, Washington DC, 20064, USA; Division of Renal Diseases & Hypertension, Department of Medicine, The George Washington University, Washington DC, 20037, USA.
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Sánchez-Pozos K, Ramírez-Jurado AA, Medina-Escobedo M, Garrido-Dzib ÁG, González-Rocha LA, Gutiérrez-Solis AL, Avila-Nava A, Lugo R. Computed tomographic characterization of urinary stones in patients with urolithiasis from Southeast Mexico. Heliyon 2024; 10:e23547. [PMID: 38169908 PMCID: PMC10758874 DOI: 10.1016/j.heliyon.2023.e23547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024] Open
Abstract
Urolithiasis (UL) is a severe public health concern in southeastern Mexico. Computed tomography (CT) is the first-line diagnostic method for patients with suspected UL. The present study aimed to characterize stones in the entire urinary system using CT and to contribute to personalized treatment in patients with UL. Patients >18 years of age with suspected UL were enrolled. Characteristics of UL included stone size, location (kidney, ureters, and bladder), composition of the stone in Hounsfield units (HU), presence of staghorn stone(s), and obstructive uropathy. Patients were stratified according to sex and age to determine whether stone size and HU were dependent on hormonal factors in females and on prostatic hyperplasia in males. The Mann-Whitney U test was used to compare median values. Frequencies are expressed as percentages and were analyzed using the Mantel-Haenszel chi-squared test. A total of 1150 patients were included in this study, of whom 744 (64.7 %) had UL in only 1 anatomical location in the urinary system, and 406 (35.3 %) had stones in ≥2 anatomical locations. Localization and stone size differed between males and females (p < 0.05). Additionally, males exhibited differences in HU (p = 0.024) and frequency of obstructive uropathy (p = 0.10) when stratified according to age (≤50 and > 50 years). In addition, females exhibited statistical differences in HU (p = 0.010) and kidney stone size (p = 0.047) dependent on age (≤47 and > 47 years). In conclusion, findings suggest that HU and stone size differ in different anatomical structures of the urinary system. In addition, differences in stone size and composition may be associated with age and sex.
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Affiliation(s)
- Katy Sánchez-Pozos
- Research Division, Hospital Juarez de Mexico, Av. Instituto Politécnico Nacional 5160, Magdalena de las Salinas, Delegación Gustavo A. Madero, 07760. Ciudad de Mexico, Mexico
| | - Abraham Adolfo Ramírez-Jurado
- Department of Radiology, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Martha Medina-Escobedo
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Ángel Gabriel Garrido-Dzib
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Lizeth Araceli González-Rocha
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Ana Ligia Gutiérrez-Solis
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Azalia Avila-Nava
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
| | - Roberto Lugo
- Research Unit, Hospital Regional de Alta Especialidad de la Peninsula de Yucatan, Calle 7 por 20 y 22 Num 433, Fracc. Altabrisa, 97130, Merida, Mexico
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Militaru A, Bulai CA, Ene C, Popescu RI, Cozma C, Mares C, Balacescu S, Moldoveanu C, Georgescu DA, Geavlete PA, Geavlete BF. Double J Stents and Reno-Ureteral Lithiasis: Dynamic Changes in Management during the COVID-19 Pandemic. Life (Basel) 2023; 13:2113. [PMID: 38004253 PMCID: PMC10672095 DOI: 10.3390/life13112113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 10/08/2023] [Accepted: 10/23/2023] [Indexed: 11/26/2023] Open
Abstract
PURPOSE To provide an evidence-based review of the use of ureteral stents in managing reno-ureteral lithiasis during the COVID-19 pandemic. MATERIALS AND METHODS A literature search was conducted between 2020 and 2023 using the PubMed and SCOPUS databases. As a part of the search query, we entered "ureteral stents" OR "double J stent" AND "renal colic" OR "ureteral obstruction" OR "reno-ureteral lithiasis" AND "COVID-19 Pandemic" OR "SARS-CoV-2 infection". RESULTS Patients with lithiasis should be categorized into low priority, intermediate priority, high priority, and emergency under the COVID-19 pandemic scenario to manage their delay and save resources, including healthcare professionals, beds, and ventilators. However, immediate interventions are necessary for individuals at risk of life-threatening septic complications. During the COVID-19 pandemic, the feasibility of conducting or resuming elective activity depended on local circumstances, the accessibility of beds and ventilators, and the execution of screening protocols. If lithiasis surgery is delayed, consequences and increased effort will be inevitable. It is possible that teleconsultation could help guide these patients and cut down on unnecessary visits and exposure. CONCLUSIONS COVID-19 has shifted treatment options for urinary stones, with ureteral stents being a safe, efficient, and cost-effective option for managing urolithiasis. Decompression is essential in emergency situations, while ureteral stents reduce the risk of infection and hospital visits.
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Affiliation(s)
- Adrian Militaru
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
| | - Catalin Andrei Bulai
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
| | - Cosmin Ene
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
| | - Razvan Ionut Popescu
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Prof. Dr. Th. Burghele” Clinical Hospital, 20 Panduri, 050659 Bucharest, Romania
| | - Cosmin Cozma
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
| | - Cristian Mares
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
| | - Stefan Balacescu
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
| | - Cristian Moldoveanu
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
| | - Dragos Adrian Georgescu
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
| | - Petrisor Aurelian Geavlete
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
| | - Bogdan Florin Geavlete
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 8 Eroii Sanitari, 050474 Bucharest, Romania
- Department of Urology, “Saint John” Clinical Emergency Hospital, 13 Vitan-Barzesti, 042122 Bucharest, Romania
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Thamer S, Stevanovic M, Buckey JC. Pre-flight body weight effects on urinary calcium excretion in space. NPJ Microgravity 2023; 9:45. [PMID: 37316529 DOI: 10.1038/s41526-023-00291-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 05/25/2023] [Indexed: 06/16/2023] Open
Abstract
Microgravity-induced bone loss increases urinary calcium excretion which increases kidney stone formation risk. Not all individuals show the same degree of increase in urinary calcium and some pre-flight characteristics may help identify individuals who may benefit from in-flight monitoring. In weightlessness the bone is unloaded, and the effect of this unloading may be greater for those who weigh more. We studied whether pre-flight body weight was associated with increased in-flight urinary calcium excretion using data from Skylab and the International Space Station (ISS). The study was reviewed and approved by the National Aeronautics and Space Administration (NASA) electronic Institutional Review Board (eIRB) and data were sourced from the Longitudinal Study of Astronaut Health (LSAH) database. The combined Skylab and ISS data included 45 participants (9 Skylab, 36 ISS). Both weight and day in flight were positively related to urinary calcium excretion. There was also an interaction between weight and day in flight with higher weight associated with higher calcium excretion earlier in the mission. This study shows that pre-flight weight is also a factor and could be included in the risk assessments for bone loss and kidney stone formation in space.
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Affiliation(s)
- Semran Thamer
- Geisel School of Medicine at Dartmouth, 1 Rope Ferry Rd, Hanover, NH, 03755, USA.
| | - Mirjana Stevanovic
- Geisel School of Medicine at Dartmouth, 1 Rope Ferry Rd, Hanover, NH, 03755, USA
| | - Jay C Buckey
- Space Medicine Innovations Laboratory, Geisel School of Medicine at Dartmouth, One Medical Center Drive, Lebanon, NH, 03756, USA
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Harb AA, Han DS, Lee JA, Schulster ML, Shah O. Micronutrient inadequacy and urinary stone disease: an analysis of the National Health and Nutrition Examination Survey 2007-2018. Urolithiasis 2023; 51:59. [PMID: 36976348 DOI: 10.1007/s00240-023-01432-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023]
Abstract
Urinary stone disease is common and affects approximately 10% of the American adults. The role of diet in stone formation is well-recognized; however, the literature focus has been on dietary excess rather than micronutrient inadequacy. As patients with stones may be at risk for nutrient inadequacies, we investigated the role of micronutrient inadequacy in stone formation by performing a cross-sectional analysis of the National Health and Nutrition Examination Survey on adults who were not taking dietary supplements. Micronutrient intake was obtained from 24-h dietary recalls, and usual intake was calculated. Survey-weighted, adjusted logistic regression was used for an incident analysis on having any history of stones. An additional analysis on recurrent stone-formers was performed with the outcome being 2 or more stones passed. Finally, a sensitivity analysis using quasi-Poisson regression was performed with the outcome being number of stones passed. There were 9777 respondents representing 81,087,345 adults, of which 9.36% had a stone history. Our incident analysis revealed inadequate vitamin A intake to be associated with stone formation (OR 1.33, 95% CI: 1.03-1.71). Recurrent analysis did not find any significant associations, while our sensitivity analysis revealed inadequate vitamin A (IRR 1.96, 95% CI: 1.28-3.00) and pyridoxine (IRR 1.99, 95% CI: 1.11-3.55) to be associated with a higher number of recurrent stones. Hence, inadequate dietary intake of vitamin A and pyridoxine was associated with nephrolithiasis. Further research is needed to identify the roles of these micronutrients in stone-formers and the potential for evaluation and treatment.
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Affiliation(s)
- Amro A Harb
- Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
| | - David S Han
- Department of Urology, Columbia University Irving Medical Center, 161 Fort Washington Avenue, 11th Floor, New York, NY, 10032, USA
| | - Justin A Lee
- Department of Urology, Columbia University Irving Medical Center, 161 Fort Washington Avenue, 11th Floor, New York, NY, 10032, USA
| | - Michael L Schulster
- Department of Urology, Columbia University Irving Medical Center, 161 Fort Washington Avenue, 11th Floor, New York, NY, 10032, USA
| | - Ojas Shah
- Department of Urology, Columbia University Irving Medical Center, 161 Fort Washington Avenue, 11th Floor, New York, NY, 10032, USA.
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Singh S, Gupta S, Mishra T, Banerjee BD, Sharma T. Risk Factors of Incident Kidney Stones in Indian Adults: A Hospital-Based Cross-Sectional Study. Cureus 2023; 15:e35558. [PMID: 37007314 PMCID: PMC10060047 DOI: 10.7759/cureus.35558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/27/2023] [Indexed: 03/02/2023] Open
Abstract
Background The diverse manifestations of urolithiasis provide very interesting epidemiological data. This has prompted various studies to look into the etiopathogenesis of renal stones, which is believed to be multifactorial, both exogenous and endogenous. VDR Fok1 is a risk factor for renal stone formation and could cause the formation of renal stones through the mechanism of crystal induction and crystallization in the urine. While a few recent studies have shown the role of heavy metals like cadmium and lead in the formation of renal stones, the current knowledge is still insufficient. Methods This case-control prospective study was conducted in Guru Teg Bahadur (GTB) Hospital, a tertiary care facility in Delhi with 30 cases and 30 controls. Patients visiting the department of surgery between November 2011 and April 2013 were enrolled in the study. Cases were defined as patients with renal stones diagnosed on the basis of history and radiological investigations. Controls were selected from the patients admitted to the department of surgery for reasons other than renal stones. The study protocol was approved by the Institutional Ethical Committee of the University College of Medical Sciences, GTB Hospital, Delhi. Written informed consent was obtained from all patients. A structured questionnaire was used to collect data. Metal levels were analyzed by an atomic absorption spectrophotometer (Shimadzu Flame AA-680, Shimadzu Corp., Kyoto, Japan) at Delhi University. The vitamin D receptor gene was measured using genomic DNA. Horizontal agarose gel electrophoresis was used for the quantification of the genomic DNA. Results There were 30 cases and 30 controls in the study. Stress was more prevalent among cases (63%) compared to controls (36%). Nearly 83% of cases had the ff allele of the Vitamin D receptor gene compared to 46% of controls. The median arsenic and lead levels were higher among cases compared to controls. In the unadjusted model of logistic regression, we found stressed patients had three times higher odds of developing renal stones compared to non-stressed patients (OR (95% CI): 2.98 (1.04-8.52); p=0.04). Similarly, patients with higher blood concentrations of arsenic and lead had higher odds of developing renal stones compared to those with lower concentrations. Conclusions There was a definitive role of heavy metals, including lead, cadmium, and arsenic, seen with renal stones. A significant association was seen between the ff allele of VDR polymorphism (Fok1 enzymes) and patients with renal stones. Other parameters, including male and stress factors, seem to have an important role in renal stone formation.
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Cao B, Daniel R, McGregor R, Tasian GE. Pediatric Nephrolithiasis. Healthcare (Basel) 2023; 11. [PMID: 36833086 DOI: 10.3390/healthcare11040552] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/30/2023] [Accepted: 02/10/2023] [Indexed: 02/15/2023] Open
Abstract
The prevalence of pediatric nephrolithiasis has increased dramatically in the past two decades for reasons that have yet to be fully elucidated. Workup of pediatric kidney stones should include metabolic assessment to identify and address any risk factors predisposing patients to recurrent stone formation, and treatment should aim to facilitate stone clearance while minimizing complications, radiation and anesthetic exposure, and other risks. Treatment methods include observation and supportive therapy, medical expulsive therapy, and surgical intervention, with choice of treatment method determined by clinicians' assessments of stone size, location, anatomic factors, comorbidities, other risk factors, and preferences and goals of patients and their families. Much of the current research into nephrolithiasis is restricted to adult populations, and more data are needed to better understand many aspects of the epidemiology and treatment of pediatric kidney stones.
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Janrod M, Srisa-Art M. Simultaneous colorimetric detection of nephrolithiasis biomarkers using a microfluidic paper-based analytical device. Anal Methods 2023; 15:752-761. [PMID: 36661131 DOI: 10.1039/d2ay01648f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A microfluidic paper-based analytical device (μPAD) coupled with colorimetric detection was developed for simultaneous determination of urinary oxalate, citrate and uric acid (UA) which are important biomarkers of nephrolithiasis or kidney stones. The colorimetric detections were based on enzymatic reactions using oxalate oxidase and uricase for oxalate and UA, respectively, while an indicator displacement assay (IDA) using a copper murexide complex was applied for citrate detection. The developed μPAD was successfully applied for simultaneous determination of the three biomarkers in urine within 25 min, with linear ranges of 2-40, 5-150, and 5-45 mg L-1 and detection limits of 0.6, 2.9 and 3.1 mg L-1 for oxalate, UA, and citrate, respectively. The values of the percent relative standard deviation (% RSD) were lower than 6.4% for inter-day and intraday measurements of oxalate, citrate and UA standards spiked in urine samples with recovery percentages in the range of 81.0-109.8%, indicating acceptable accuracy and precision of the developed method for determination of the three biomarkers in urine samples. Accordingly, the developed μPAD holds great promise to be a simple, fast, inexpensive, low-sample and reagent volume, reliable and portable tool for simultaneous determination of oxalate, citrate and UA in urine, especially for on-site analysis.
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Affiliation(s)
- Manassawee Janrod
- Electrochemistry and Optical Spectroscopy Center of Excellence, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
| | - Monpichar Srisa-Art
- Electrochemistry and Optical Spectroscopy Center of Excellence, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, 10330, Thailand.
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Bhattacharya S, Joshi NK, Jain YK, Bajpai N, Bhardwaj P, Chaturvedi M, Patil MS, Gaidhane A, Quazi Syed Z, Saxena D. Dietary Determinants of Renal Calculi: A Case-Control Study From a Tertiary Care Hospital of Western Rajasthan. Cureus 2022; 14:e31460. [DOI: 10.7759/cureus.31460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 11/13/2022] [Indexed: 11/15/2022] Open
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Watson G, Payne SR, Kunitsky K, Natchagande G, Mabedi C, Scotland KB. Stone disease in low-middle income countries. Could augmented reality have a role in its management? BJU Int 2022; 130:400-407. [PMID: 35993671 DOI: 10.1111/bju.15877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Urolithiasis is a global phenomenon. Cystolithiasis is common in parts of Africa due to low protein intake and dehydration from endemic diarrhoeal illnesses. Nephrolithiasis is less prevalent than in high income countries, probably due to a variety of lifestyle issues, such as a more elemental diet, higher physical activity and less obesity. Although renal stones are less common in low-middle income countries (LMICs), the social and economic impacts of nephrolithiasis are still considerable; many stones present late or with complications such as upper urinary tract obstruction or urosepsis. These may lead to the development of chronic kidney disease, or end-stage renal failure in a small proportion of cases, conditions for which there is very poor provision in most LMICs. Early treatment of nephrolithiasis by the least invasive method possible can, however, reduce the functional consequences of urinary stone disease. Although ESWL is uncommon, and endoscopic interventions for stone are not widespread in most of Africa, percutaneous nephrolithomy and ureteroscopic renal surgery are viable techniques in those regional centres with infrastructure to support them. Longitudinal mentoring has been shown to be a key step in the adoption of these minimally invasive procedures by local surgeons, something that has been difficult during the COVID-19 pandemic due to travel restriction. Augmented reality (AR) technology is an alternative means of providing remote mentoring, something that has been trialled by Urolink, the MediTech Trust and other global non-governmental organisations during this period. Our preliminary experience suggests that this is a viable technique for promulgating skills in LMICs where appropriate connectivity exists to support remote communication. AR may also have long term promise for decreasing the reliance upon short-term surgical visits to consolidate competence, thereby reducing the carbon footprint of global surgical education.
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Affiliation(s)
- Graham Watson
- East Sussex Hospitals NHS Trust, Eastbourne, UK.,Medi Tech Trust, Eastbourne, UK
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Lang J, Narendrula A, El-Zawahry A, Sindhwani P, Ekwenna O. Global Trends in Incidence and Burden of Urolithiasis from 1990 to 2019: An Analysis of Global Burden of Disease Study Data. EUR UROL SUPPL 2022; 35:37-46. [PMID: 35024630 PMCID: PMC8738898 DOI: 10.1016/j.euros.2021.10.008] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2021] [Indexed: 11/21/2022] Open
Abstract
Background Urolithiasis is among the most common urologic diagnoses globally, with substantial burden and cost on healthcare systems worldwide. Increasing evidence links urolithiasis with an array of risk factors, including diet and lifestyle trends, noncommunicable diseases such as diabetes and obesity, and global warming. Objective To examine geographic, temporal, and sociodemographic patterns to better understand global disease burden of urolithiasis. Design, setting, and participants We extracted data on age-standardized incidence rate (ASIR), deaths, and disability-adjusted life years (DALYs) attributed to urolithiasis for 21 regions, including 204 countries, for 1990–2019 from the Global Burden of Disease (GBD) study. Outcome measurements and statistical analysis Data were analyzed at the global, regional, and country levels, as well as stratified by the Socio-Demographic Index. The average annual percentage change (AAPC) was calculated to measure temporal trends across groups. Results and limitations Globally, total cases, DALYs, and deaths attributed to urolithiasis increased over the study period, while the age-standardized rates of these measures decreased. The age-standardized incidence of urolithiasis decreased from 1696.2 (95% confidence interval [CI] 1358.1–2078.1) cases per 100 000 population in 1990 to 1394.0 (95% CI, 1126.4–1688.2) cases per 100 000 population in 2019, with an AAPC of −0.7 (95% CI [−0.8, −0.6]). Of the GBD regions, Eastern Europe demonstrated a consistently higher ASIR of urolithiasis than all other regions, while the Caribbean had the highest AAPC. This study is limited by the available national and regional data, as described in the original GBD study. Conclusions Worldwide, total cases, DALYs, and deaths attributed to urolithiasis have increased since 1990, while age-standardized rates have decreased, with demonstrated regional and sociodemographic variation. Multifaceted strategies to address urolithiasis prevention and treatment are necessary. Patient summary In this study, we looked at trends in the global burden of stone disease using data from 204 countries from 1990 to 2019. We found that the overall burden has increased, but it varies by age, sociodemographic variables, and geographic region. We conclude that we need adaptable policies that suit the specific needs of the country to address this burden.
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Affiliation(s)
- Jacob Lang
- University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
- Corresponding author. University of Toledo College of Medicine and Life Sciences, 3000 Arlington Street, Toledo, OH, USA. Tel. +1 567-245-5852.
| | - Aparna Narendrula
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Ahmed El-Zawahry
- University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
- Department of Urology and Transplantation, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Puneet Sindhwani
- University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
- Department of Urology and Transplantation, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Obi Ekwenna
- University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
- Department of Urology and Transplantation, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
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Jafari GA, Fotouhi Ardakani R, Nowroozi J, Soltanpour MS, Akhavan Sepahi M. The Effect of Oxalobacter formigenes Colonization in Patients with Calcium Oxalate Renal Stones in Comparison with Healthy People in Qom: A Case-Control Study. Nephrourol Mon 2021; 13. [DOI: 10.5812/numonthly.115769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background: Urinary stones are a major problem world, and their incidence has increased significantly in recent years. Objectives: This study aimed to develop a simple and rapid molecular method based on PCR and qPCR assays to detect Oxalobacter formigenes (which causes oxalate degradation in intestines) in fecal samples of healthy volunteers and patients with calcium oxalate nephrolithiasis, and determine the amount of urinary oxalate in the two groups. Methods: This study was performed on urine and fecal samples of 73 patients with kidney stones and 52 healthy individuals. After DNA extraction, PCR and qPCR assays were performed on two gene regions of O. formigenes, OXC, and FRC. Also, urine oxalate was measured in the study population using biochemical methods. Results: We found that the presence of O. formigenes could reduce the risk of kidney stones and calcium oxalate stones. In fact, both FRC and OXC genes were involved in the diagnosis of O. formigenes; however, the results based on the FRC gene showed higher efficiency. In addition, the presence or absence of stones did not affect the amount of urinary excretion of oxalate, rather it is affected by diet. Conclusions: Molecular identification of O. formigenes by PCR and qPCR assays allows rapid, specific, and reproducible detection in fecal samples, which also allows immediate processing of these samples in clinical conditions.
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Gadzhiev N, Prosyannikov M, Malkhasyan V, Akopyan G, Somani B, Sivkov A, Apolikhin O, Kaprin A. Urolithiasis prevalence in the Russian Federation: analysis of trends over a 15-year period. World J Urol 2021. [PMID: 34008087 DOI: 10.1007/s00345-021-03729-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/07/2021] [Indexed: 10/21/2022] Open
Abstract
PURPOSE To conduct a comparative analysis of the prevalence of urolithiasis in the Russian Federation. METHODS We analysed urolithiasis prevalence and incidence data from 2005 to 2019 (15 years) for the entire population of Russia. Data were provided by the 'Ministry of Health' of the Russian Federation. The prevalence and incidence of urolithiasis were collected and analysed for both adults and children for each region of the Russian Federation over this 15-year period. Statistical analysis was performed using the SPSS Statistics 21 software package (SPSS). Intergroup correlations and differences between samples in the studied parameters were considered significant at p < 0.05. RESULTS A total of 656,911 and 889,891 urolithiasis cases were observed in 2005 and 2019, respectively, an increase in urolithiasis prevalence of 35.4% for the study period, with the growth rate that was fairly uniform. The incidence of urolithiasis in the Russian Federation was 176,773 in 2005, while 205,414 new urolithiasis cases were recorded in 2019, with a clear tendency to a rising incidence of urolithiasis, an increase of 16.2% during the study period. The incidence per 100,000 in children remained stable during the entire period of analysis. CONCLUSION The incidence and prevalence of urolithiasis in the adult population steadily increased in all regions of the Russian Federation, while the incidence in children remained stable. The incidence of urolithiasis was associated with an increase in the incidence of diabetes mellitus, obesity and meat consumptions, highlighting the strong association of kidney stone disease with these risk factors.
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Veys R, Verpoort P, Van Haute C, Wang ZT, Chi T, Tailly T. Thiel‐embalmed cadavers as a novel training model for ultrasound‐guided supine endoscopic combined intrarenal surgery. BJU Int 2019; 125:579-585. [DOI: 10.1111/bju.14954] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ralf Veys
- Department of Urology University Hospital Ghent Ghent Belgium
| | - Pieter Verpoort
- Department of Urology University Hospital Ghent Ghent Belgium
| | - Carl Van Haute
- Department of Urology University Hospital Brugmann Brussels Belgium
| | - Zhan Tao Wang
- Department of Surgery Division of Urology Western University London Ontario Canada
| | - Thomas Chi
- Department of Urology University of California‐San Francisco San Francisco California USA
| | - Thomas Tailly
- Department of Urology University Hospital Ghent Ghent Belgium
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Abstract
ABSTRACT Objective To determine the effect of nutritional habits on kidney stone formation and recurrence. Methods This study was conducted on 44 healthy individuals and 44 patients diagnosed with nephrolithiasis and aging between 20 and 65 years. Participants shared their salt consumption habits, daily fluid consumption amounts and general information about themselves in a questionnaire form. In addition, food and beverage consumption frequencies of participants were recorded through a food frequency questionnaire. Results Salt consumption frequencies of patients are higher than that of healthy individuals in both genders (p<0.05). It was found out that male individuals in the patient group salt dishes without tasting more frequently (p<0.05). Daily total water consumption of both genders in patient group is lower than that of healthy individuals (p<0.05). Meat consumption of male patients (51.6±31.35g/day) was found to be higher than that of healthy group (34.1±22.58g/day) (p<0.05). Additionally, individuals in the patient group consume less stinging nettle, corn, plum, loquat, orange juice and lemonade than healthy individuals (p<0.05). Conclusion Results of the study showed that total fluid intake, salt consumption habits, and vegetable, fruit and beverage consumption may be correlated with stone formation risk and nutrition habits may affect stone recurrence.
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