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Xu Y, Qin Y, Lu H, Liu L, Huang W, Huang A, Ye Y, Shen H, Guo Z, Chen W. The magnesium depletion score is associated with increased likelihood of kidney stone disease among female adults. J Trace Elem Med Biol 2024; 84:127432. [PMID: 38489922 DOI: 10.1016/j.jtemb.2024.127432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/09/2024] [Accepted: 03/10/2024] [Indexed: 03/17/2024]
Abstract
OBJECT The association between magnesium depletion score (MDS) and kidney stone disease (KSD) remains unknown. This study was designed to investigate the association of MDS with KSD in adults. METHODS A total of 19,654 participants were enrolled from the National Health and Nutrition Examination Surveys (NHANES). The MDS was calculated by assessing four aspects, including alcohol assumption, renal function, and use of diuretics and proton pump inhibitor. Multivariable logistic regressions were performed to explore the associations between MDS and the prevalence of KSD. Linear correlations were conducted explore the relationship of testosterone with MDS. RESULTS In the multivariable logistic regressions with full adjustment for confounding variables, the odds ratio of MDS associating with KSD was 1.28 (95% CI: 1.04-1.58, P = 0.022) in total population, and 1.70 (95% CI: 1.16-2.50, P=0.007) in female participants. Besides, compared to the lowest MDS, the highest MDS was associated with a lower testosterone (β = -16.39, P=0.009) after full adjustment in non-menopause women. CONCLUSION This study highlighted a positive correlation of high MDS with KSD in female population, which may be associated low level of serum testosterone.
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Affiliation(s)
- Ying Xu
- Department of Nephrology, The First Affiliated Hospital of Naval Medical University (Changhai Hospital of Shanghai), Shanghai, China
| | - Yingyi Qin
- Department of Military Health Statistics, Naval Medical University, Shanghai, China
| | - Hongtao Lu
- Department of Naval Medicine, Naval Medical University, Shanghai, China
| | - Lulu Liu
- Department of Nephrology, The First Affiliated Hospital of Naval Medical University (Changhai Hospital of Shanghai), Shanghai, China
| | - Weiyan Huang
- Department of Nephrology, The First Affiliated Hospital of Naval Medical University (Changhai Hospital of Shanghai), Shanghai, China
| | - Anwen Huang
- Department of Nephrology, The First Affiliated Hospital of Naval Medical University (Changhai Hospital of Shanghai), Shanghai, China
| | - Yufei Ye
- Department of Nephrology, The First Affiliated Hospital of Naval Medical University (Changhai Hospital of Shanghai), Shanghai, China
| | - Hui Shen
- Department of Naval Medicine, Naval Medical University, Shanghai, China.
| | - Zhiyong Guo
- Department of Nephrology, The First Affiliated Hospital of Naval Medical University (Changhai Hospital of Shanghai), Shanghai, China.
| | - Wei Chen
- Department of Nephrology, The First Affiliated Hospital of Naval Medical University (Changhai Hospital of Shanghai), Shanghai, China.
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Wang X, Zhang J, Ma Z, Yang Y, Dang Y, Cao S, Shi X, Ouyang C, Pan J, Hu X. Association and interactions between mixed exposure to trace elements and the prevalence of kidney stones: a study of NHANES 2017-2018. Front Public Health 2023; 11:1251637. [PMID: 37965524 PMCID: PMC10642183 DOI: 10.3389/fpubh.2023.1251637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 10/09/2023] [Indexed: 11/16/2023] Open
Abstract
Background The association between exposure to trace elements mixture and the prevalence of kidney stones and the interactions between elements are unclear. The aim of this study was to explore the association between exposure to trace elements mixture and the prevalence of kidney stones and the interactions between the elements. Methods A total of 1,244 participants (139 kidney stone formers and 1,105 non-stone former participants) in NHANES 2017-2018 were included. The exposure to trace elements was evaluated by measuring their concentration in urine samples. Three methods, Logistic regression, quantile-based g computation (qgcomp), and Bayesian kernel machine regression (BKMR), were used for analysis. Results According to the results from qgcomp and BKMR, a negative association was found between exposure to the 13 trace elements and the prevalence of kidney stones [OR = 0.50 (0.32, 0.78)]. Subgroup analysis revealed that Co, As, and iodine in the whole population, Co, As, and Ni in males, and Cs, iodine, and Sb in females, were most strongly associated with kidney stones. Kidney stone was found to be positively correlated with Co and negatively correlated with the other elements. Besides, there were significant interactions between Ni and Pb in the whole population, Co and iodine in males, and Pb and iodine in females. Conclusion There was a negative association between exposure to the mixture of 13 trace elements and the prevalence of kidney stones.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Xiaobin Hu
- Institute of Epidemiology and Health Statistics, School of Public Health, Lanzhou University, Lanzhou, China
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Shen S, Wei J, Kang W, Wang T. Elucidating shared biomarkers and pathways in kidney stones and diabetes: insights into novel therapeutic targets and the role of resveratrol. J Transl Med 2023; 21:491. [PMID: 37480086 PMCID: PMC10360253 DOI: 10.1186/s12967-023-04356-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 07/13/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND The pathogenic mechanisms shared between kidney stones and diabetes at the transcriptional level remain elusive, and the molecular mechanisms by which resveratrol exerts its protective effects against these conditions require further investigation. METHODS To address these gaps in knowledge, we conducted a comprehensive analysis of microarray and RNA-seq datasets to elucidate shared biomarkers and biological pathways involved in the pathogenesis of kidney stones and diabetes. An assortment of bioinformatic approaches was employed to illuminate the common molecular markers and associated pathways, thereby contributing to the identification of innovative therapeutic targets. Further investigation into the molecular mechanisms of resveratrol in preventing these conditions was conducted using molecular docking simulation and first-principles calculations. RESULTS The study identified 11 potential target genes associated with kidney stones and diabetes through the intersection of genes from weighted gene co-expression network analysis (WGCNA) and differentially expressed genes (DEGs) screening. Among these, Interleukin 11 (IL11) emerged as a pivotal hub gene and a potential diagnostic biomarker for both conditions, particularly in males. Expression analysis of IL11 demonstrated elevated levels in kidney stones and diabetes groups compared to controls. Additionally, IL11 exhibited correlations with specific cell types and differential expression in normal and pathological conditions. Gene set enrichment analysis (GSEA) highlighted significant disparities in biological processes, pathways, and immune signatures associated with IL11. Moreover, molecular docking simulation of resveratrol towards IL11 and a first-principles investigation of Ca adsorption on the resveratrol surface provided structural evidence for the development of resveratrol-based drugs for these conditions. CONCLUSIONS Overall, this investigation illuminates the discovery of common molecular mechanisms underlying kidney stones and diabetes, unveils potential diagnostic biomarkers, and elucidates the significance of IL11 in these conditions. It also provides insights into IL11 as a promising therapeutic target and highlights the role of resveratrol. Nonetheless, further research is warranted to enhance our understanding of IL11 targeting mechanisms and address any limitations in the study.
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Affiliation(s)
- Shanlin Shen
- Department of Urology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Jiafeng Wei
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China
| | - Weiting Kang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China
| | - Tengteng Wang
- Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, China.
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Xu Z, Yao X, Duan C, Liu H, Xu H. Metabolic changes in kidney stone disease. Front Immunol 2023; 14:1142207. [PMID: 37228601 PMCID: PMC10203412 DOI: 10.3389/fimmu.2023.1142207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/06/2023] [Indexed: 05/27/2023] Open
Abstract
Kidney stone disease (KSD) is one of the earliest medical diseases known, but the mechanism of its formation and metabolic changes remain unclear. The formation of kidney stones is a extensive and complicated process, which is regulated by metabolic changes in various substances. In this manuscript, we summarized the progress of research on metabolic changes in kidney stone disease and discuss the valuable role of some new potential targets. We reviewed the influence of metabolism of some common substances on stone formation, such as the regulation of oxalate, the release of reactive oxygen species (ROS), macrophage polarization, the levels of hormones, and the alternation of other substances. New insights into changes in substance metabolism changes in kidney stone disease, as well as emerging research techniques, will provide new directions in the treatment of stones. Reviewing the great progress that has been made in this field will help to improve the understanding by urologists, nephrologists, and health care providers of the metabolic changes in kidney stone disease, and contribute to explore new metabolic targets for clinical therapy.
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Affiliation(s)
- Zhenzhen Xu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiangyang Yao
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Chen Duan
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haoran Liu
- Stanford Bio-X, Stanford University, San Francisco, CA, United States
| | - Hua Xu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
- Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan, China
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Ye Z, Chen Z, Luo J, Xu L, Fan D, Wang J. National analysis of urinary cadmium concentration and kidney stone: Evidence from NHANES (2011–2020). Front Public Health 2023; 11:1146263. [PMID: 37006548 PMCID: PMC10050557 DOI: 10.3389/fpubh.2023.1146263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 02/20/2023] [Indexed: 03/17/2023] Open
Abstract
BackgroundThe association between urinary cadmium and kidney stone risk is inconsistent in previous studies, which needs further exploration. This study was performed to explore the association between urinary cadmium and kidney stone.Materials and methodsData from the National Health and Nutrition Examination Survey (2011–2020) were included and further analyzed. Urinary cadmium was stratified into quartiles with quartile 1 (Q1: 0.025–0.104 μg/L) and quartile 4 (Q4: 0.435–7.581 μg/L). Further weighted logistic regression was adopted to evaluate the association between urinary cadmium and kidney stone. A subgroup analysis was used to verify the findings. The non-linear association was examined using the restricted cubic spline (RCS) regression.ResultsA total of 9,056 adults aged 20 years and above were included in this study. In the fully adjusted model, an increased risk of kidney stones was identified for quartile 2 (OR = 1.40, 95% CI = 1.06–1.84, P < 0.05), quartile 3 (OR = 1.18, 95% CI = 0.88–1.59, P > 0.05), and quartile 4 (OR = 1.54, 95% CI = 1.10–2.06, P < 0.05). A similar association was found between continuous cadmium increase and OR of kidney stones in the fully adjusted model (OR = 1.13, 95% CI = 1.01–1.26, P < 0.05). The RCS also indicated a non-linear association between urinary cadmium concentration and kidney stone risk (P for non-linear < 0.001).ConclusionIn summary, cadmium exposure is identified as a risk factor for kidney stones in this study. Their non-linear association makes demands on early intervention for the cadmium-exposed population. Medical interventions for kidney stone prevention should take cadmium exposure into account.
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Affiliation(s)
- Zhenyang Ye
- Department of Urology, West China Xiamen Hospital of Sichuan University, Xiamen, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Zhenyang Ye
| | - Zaizhi Chen
- Department of Anesthesiology, The Third Hospital of Xiamen Affiliated to Fujian University of Traditional Chinese Medicine, Xiamen, China
| | - Jinyang Luo
- Department of Urology, West China Xiamen Hospital of Sichuan University, Xiamen, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Lijing Xu
- Department of Urology, West China Xiamen Hospital of Sichuan University, Xiamen, China
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Dongping Fan
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Jia Wang
- Department of Urology, West China Hospital, Sichuan University, Chengdu, China
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Yang Y, Hong S, Wang Q, Wang S, Xun Y. Exosome-mediated crosstalk between epithelial cells amplifies the cell injury cascade in CaOx stone formation. J Biol Eng 2023; 17:16. [PMID: 36855143 PMCID: PMC9976448 DOI: 10.1186/s13036-023-00324-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 01/04/2023] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Calcium oxalate (CaOx) stone disease is found worldwide. To explore the role of exosomes as a mediator of intercellular crosstalk during CaOx stone formation, we conducted this study, which may provide a new insight into the treatment and prevention of CaOx stones. METHODS Exosomes derived from HK2 cells with (EXO(S)) or without (EXO(C))CaOx crystal stimulation were cocultured with normal tubular epithelial cells and subcapsularly injected into rat kidneys. Then, oxidative stress levels, the MAPK signalling pathway and osteogenic changes were detected via qPCR, Western blotting, immunofluorescence and immunohistochemical staining. In vivo fluorescence imaging and exosome internalization assays showed the absorption and utilization of exosomes. RESULTS EXO(S) increased the reactive oxygen species (ROS) level and activated the expression of BMP2, OPN and OCN via the MAPK/P-38 pathway both in vivo and in vitro. In vivo experiments showed that preinjection of EXO(S) aggravated, while preinjection of EXO(C) ameliorated, these effects. Crystal depositions were significantly increased in SD rats injected with GAM when they were preinjected with EXO(S), and these effects could be reversed after preinjection with EXO(C). CONCLUSION Our study revealed that exosome-mediated intercellular crosstalk could accelerate the formation of CaOx stones by promoting oxidative stress and the osteogenic cascade in normal tubular epithelial cells. HK2 cells stimulated with CaOx crystals released more exosomal miR-223-3p and S100A8 comparing with normal HK2 cells. These exosomes derived from HK2 cells stimulated with CaOx (EXO(S)) could amplify the oxidative stress and osteogenic changes via MAPK/P-38 pathway, which finally led to the formation of Randall's plaque.
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Affiliation(s)
- Yuanyuan Yang
- grid.33199.310000 0004 0368 7223Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Senyuan Hong
- grid.33199.310000 0004 0368 7223Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Qing Wang
- grid.443382.a0000 0004 1804 268XDepartment of Urology, Guizhou Provincial People’s Hospital, Guizhou University, Guiyang, 550000 Guizhou China ,grid.443382.a0000 0004 1804 268XDepartment of Research Laboratory Center, Guizhou Provincial People’s Hospital, Guizhou University, Guiyang, 550000 Guizhou China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
| | - Yang Xun
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
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The advances of calcium oxalate calculi associated drugs and targets. Eur J Pharmacol 2022; 935:175324. [DOI: 10.1016/j.ejphar.2022.175324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/23/2022] [Accepted: 10/11/2022] [Indexed: 11/20/2022]
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Urinary tetrahydroaldosterone is associated with circulating FGF23 in kidney stone formers. Urolithiasis 2022; 50:333-340. [PMID: 35201364 PMCID: PMC9110437 DOI: 10.1007/s00240-022-01317-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 02/08/2022] [Indexed: 12/20/2022]
Abstract
The spectrum of diseases with overactive renin–angiotensin–aldosterone system (RAS) or elevated circulating FGF23 overlaps, but the relationship between aldosterone and FGF23 remains unclarified. Here, we report that systemic RAS activation sensitively assessed by urinary tetrahydroaldosterone excretion is associated with circulating C-terminal FGF23. We performed a retrospective analysis in the Bern Kidney Stone Registry, a single-center observational cohort of kidney stone formers. Urinary excretion of the main aldosterone metabolite tetrahydroaldosterone was measured by gas chromatography–mass spectrometry. Plasma FGF23 concentrations were measured using a C-terminal assay. Regression models were calculated to assess the association of plasma FGF23 with 24 h urinary tetrahydroaldosterone excretion. We included 625 participants in the analysis. Mean age was 47 ± 14 years and 71% were male. Mean estimated GFR was 94 ml/min per 1.73 m2. In unadjusted analyses, we found a positive association between plasma FGF23 and 24 h urinary tetrahydroaldosterone excretion (β: 0.0027; p = 4.2 × 10–7). In multivariable regression models adjusting for age, sex, body mass index and GFR, this association remained robust (β: 0.0022; p = 2.1 × 10–5). Mineralotropic hormones, 24 h urinary sodium and potassium excretion as surrogates for sodium and potassium intake or antihypertensive drugs did not affect this association. Our data reveal a robust association of RAS activity with circulating FGF23 levels in kidney stone formers. These findings are in line with previous studies in rodents and suggest a physiological link between RAS system activation and FGF23 secretion.
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Yang Y, Hong S, Xu J, Li C, Wang S, Xun Y. Enterobacter cloacae: a villain in CaOx stone disease? Urolithiasis 2022; 50:177-188. [PMID: 35124708 PMCID: PMC8956555 DOI: 10.1007/s00240-022-01311-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 01/21/2022] [Indexed: 12/20/2022]
Abstract
To explore the roles microbiome of urinary tract played in calcium oxalate stones (CaOx) formation, we collected two sides’ pelvis urine of patients with unilateral CaOx stones to set self-control to diminish the influence of systemic factors. Patients with unilateral CaOx stones were recruited in our study according to strict criteria. 16S rRNA gene sequencing was applied to every pair of pelvis urine. Bacterial genome sequencing of Enterobacter cloacae was conducted and bioinformatic analysis was applied to explore the possible pathways of Enterobacter cloacae inducing CaOx stones formation. In vivo experiments were conducted to validate our claims. Von Kossa staining, TUNEL assay and Western Blot were applied to SD rats exploring the mechanism of stone formation. We found 26 significantly different bacteria between stone sides and non-stone sides’ pelvis urine, among which Enterobacter cloacae ranked the most different. Bacterial genome sequencing of Enterobacter cloacae revealed that its virulence factors included Flagellin, LPS and Fimbrial. GO and KEGG analysis revealed it probably induced CaOx stone formation via ion binging and signaling transduction pathways. The results of animal experiments indicated that Glyoxylic Acid could promote apoptosis and crystal depositions of kidney comparing with control group while pre-injected with Enterobacter cloacae could apparently compound the effects. While Western Blot demonstrated that Glyoxylic Acid or Enterobacter cloacae could increase the expression of IL-6, Mcp-1, BMP2 and OPN in rats’ kidney, Glyoxylic Acid and Enterobacter cloacae together could aggravate these increases. These findings indicated that Enterobacter cloacae might play important roles in CaOx stones formation. However, this study is just a preliminary exploration; further studies still need to be conducted.
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Affiliation(s)
- Yuanyuan Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Senyuan Hong
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Jinzhou Xu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Cong Li
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Shaogang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Yang Xun
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
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Wang Z, Zhang Y, Zhang J, Deng Q, Liang H. Recent advances on the mechanisms of kidney stone formation (Review). Int J Mol Med 2021; 48:149. [PMID: 34132361 PMCID: PMC8208620 DOI: 10.3892/ijmm.2021.4982] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 05/31/2021] [Indexed: 12/14/2022] Open
Abstract
Kidney stone disease is one of the oldest diseases known to medicine; however, the mechanisms of stone formation and development remain largely unclear. Over the past decades, a variety of theories and strategies have been developed and utilized in the surgical management of kidney stones, as a result of recent technological advances. Observations from the authors and other research groups suggest that there are five entirely different main mechanisms for kidney stone formation. Urinary supersaturation and crystallization are the driving force for intrarenal crystal precipitation. Randall's plaques are recognized as the origin of calcium oxalate stone formation. Sex hormones may be key players in the development of nephrolithiasis and may thus be potential targets for new drugs to suppress kidney stone formation. The microbiome, including urease-producing bacteria, nanobacteria and intestinal microbiota, is likely to have a profound effect on urological health, both positive and negative, owing to its metabolic output and other contributions. Lastly, the immune response, and particularly macrophage differentiation, play crucial roles in renal calcium oxalate crystal formation. In the present study, the current knowledge for each of these five aspects of kidney stone formation is reviewed. This knowledge may be used to explore novel research opportunities and improve the understanding of the initiation and development of kidney stones for urologists, nephrologists and primary care.
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Affiliation(s)
- Zhu Wang
- Department of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, Guangdong 518109, P.R. China
| | - Ying Zhang
- Department of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, Guangdong 518109, P.R. China
| | - Jianwen Zhang
- Department of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, Guangdong 518109, P.R. China
| | - Qiong Deng
- Department of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, Guangdong 518109, P.R. China
| | - Hui Liang
- Department of Urology, People's Hospital of Longhua, Southern Medical University, Shenzhen, Guangdong 518109, P.R. China
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