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Xiong Y, Song Q, Zhao S, Wang C, Ke H, Liao W, Meng L, Liu L, Song C. Serum metabolomics study reveals a distinct metabolic diagnostic model for renal calculi. Heliyon 2024; 10:e32482. [PMID: 38912451 PMCID: PMC11193013 DOI: 10.1016/j.heliyon.2024.e32482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/25/2024] Open
Abstract
Renal calculi (RC) represent a prevalent disease of the urinary system characterized by a high incidence rate. The traditional clinical diagnosis of RC emphasizes imaging and stone composition analysis. However, the significance of metabolic status in RC diagnosis and prevention remains unclear. This study aimed to investigate serum metabolites in RC patients to identify those associated with RC and to develop a metabolite-based diagnostic model. We employed nontargeted metabolomics utilizing ultra-performance liquid chromatography‒mass spectrometry (UPLC‒MS) to compare serum metabolites between RC patients and healthy controls. Our findings demonstrated significant disparities in serum metabolites, particularly in fatty acids and glycerophospholipids, between the two groups. Notably, the glycerophospholipid (GP) metabolic pathway in RC patients was significantly disrupted. Logistic regression models using differentially abundant metabolites revealed that elevated levels of 2-butyl-4-methyl phenol and reduced levels of phosphatidylethanolamine (P-16:0/22:6(4Z,7Z,10Z,13Z,16Z,19Z)) had the most substantial effect on RC risk. Overall, our study indicates that RC induces notable alterations in serum metabolites and that the diagnostic model based on these metabolites effectively distinguishes RC. This research offers promising insights and directions for further diagnostic and mechanistic studies on RC.
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Affiliation(s)
- Yunhe Xiong
- Department of Urology, Renmin Hospital of Wuhan University, Jiefang Road 238, 430060, Wuhan, Hubei Province, People's Republic of China
| | - Qianlin Song
- Department of Urology, Renmin Hospital of Wuhan University, Jiefang Road 238, 430060, Wuhan, Hubei Province, People's Republic of China
| | - Shurui Zhao
- Core Facilities Center, Capital Medical University, Beijing, People's Republic of China
| | - Chuan Wang
- Department of Urology, Renmin Hospital of Wuhan University, Jiefang Road 238, 430060, Wuhan, Hubei Province, People's Republic of China
| | - Hu Ke
- Department of Urology, Renmin Hospital of Wuhan University, Jiefang Road 238, 430060, Wuhan, Hubei Province, People's Republic of China
| | - Wenbiao Liao
- Department of Urology, Renmin Hospital of Wuhan University, Jiefang Road 238, 430060, Wuhan, Hubei Province, People's Republic of China
| | - Lingchao Meng
- Department of Urology, Renmin Hospital of Wuhan University, Jiefang Road 238, 430060, Wuhan, Hubei Province, People's Republic of China
| | - Lingyan Liu
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, School of Pharmaceutical Sciences, Capital Medical University, Beijing, People's Republic of China
| | - Chao Song
- Department of Urology, Renmin Hospital of Wuhan University, Jiefang Road 238, 430060, Wuhan, Hubei Province, People's Republic of China
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Kowalczyk NS, Prochaska ML, Worcester EM. Metabolomic profiles and pathogenesis of nephrolithiasis. Curr Opin Nephrol Hypertens 2023; 32:490-495. [PMID: 37530089 PMCID: PMC10403267 DOI: 10.1097/mnh.0000000000000903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
PURPOSE OF REVIEW Kidney stone disease is caused by supersaturation of urine with certain metabolites and minerals. The urine composition of stone formers has been measured to prevent stone recurrence, specifically calcium, uric acid, oxalate, ammonia, citrate. However, these minerals and metabolites have proven to be unreliable in predicting stone recurrence. Metabolomics using high throughput technologies in well defined patient cohorts can identify metabolites that may provide insight into the pathogenesis of stones as well as offer possibilities in therapeutics. RECENT FINDINGS Techniques including 1H-NMR, and liquid chromatography paired with tandem mass spectroscopy have identified multiple possible metabolites involved in stone formation. Compared to formers of calcium oxalate stones, healthy controls had higher levels of hippuric acid as well as metabolites involved in caffeine metabolism. Both the gut and urine microbiome may contribute to the altered metabolome of stone formers. SUMMARY Although metabolomics has offered several potential metabolites that may be protective against or promote stone formation, the mechanisms behind these metabolomic profiles and their clinical significance requires further investigation.
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Thongprayoon C, Lieske JC, Rule AD, Denic A. Authors' Reply: Urine Metabolomic Versus Standard Chemistry Analysis: What can Metabolomic Analysis Bring to the Treatment and Prevention of Urolithiasis? J Am Soc Nephrol 2023; 34:1124-1125. [PMID: 37259199 PMCID: PMC10278795 DOI: 10.1681/asn.0000000000000138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Affiliation(s)
| | - John C. Lieske
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Andrew D. Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
- Division of Epidemiology, Mayo Clinic, Rochester, Minnesota
| | - Aleksandar Denic
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota
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Song S, Bao Y, Zhao Y. Urine Metabolomic Versus Standard Chemistry Analysis: What Can Metabolomic Analysis Bring to the Treatment and Prevention of Urolithiasis? J Am Soc Nephrol 2023; 34:1123. [PMID: 37093635 PMCID: PMC10278870 DOI: 10.1681/asn.0000000000000137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023] Open
Affiliation(s)
- Shiping Song
- Department of Urology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
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Zhou Z, Feng D, Shi D, Gao P, Wang L, Wu Z. Untargeted and targeted metabolomics reveal bile acid profile changes in rats with ethylene glycol-induced calcium oxalate nephrolithiasis. Chem Biol Interact 2023; 381:110570. [PMID: 37244400 DOI: 10.1016/j.cbi.2023.110570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 05/29/2023]
Abstract
Calcium oxalate (CaOx) nephrolithiasis is a prevalent disorder linked to metabolism. Examining metabolic alterations could potentially give an initial understanding of the origins of CaOx nephrolithiasis. This study aims to determine gut metabolic biomarkers differentiating CaOx nephrolithiasis utilizing untargeted and targeted metabolomics. CaOx nephrolithiasis model rats were built by 1% ethylene glycol administration. Histologic staining and renal function measurement revealed the presence of crystals in the lumen of the renal tubules, the renal injury and interstitial fibrosis in CaOx rats, demonstrating that the models of CaOx were established successfully. Hematoxylin & eosin (H&E) staining showed that CaOx group had inflammation and damage in the ileal tissue. Immunofluorescence and PCR results displayed that the tight junction proteins, ZO-1 and Occludin levels were decreased in the ileal tissues of the CaOx group. The untargeted metabolomic analysis revealed that 269 gut metabolites were differentially expressed between the CaOx group and the control group. Meanwhile, bile secretion, the main metabolic pathway in CaOx nephrolithiasis, was identified. Following, five significant bile acid metabolites were selected utilizing the targeted bile acid metabolomics, including Hyodeoxycholic acid (HDCA), Glycohyodeoxycholic acid (GHDCA), Nor-Deoxycholic Acid, omega-muricholic acid, and Taurolithocholic acid. Among these metabolites, HDCA and GHDCA presented the highest predictive accuracy with AUC = 1 to distinguish the CaOx group from the control group. As a result of network pharmacology, target genes of HDCA and GHDCA in CaOx nephrolithiasis were enriched in oxidative stress and apoptosis pathways. Conclusively, our study provides insight into bile acids metabolic changes related to CaOx nephrolithiasis. Although alterations in biochemical pathways indicate a complex pathology in CaOx rats, bile acid changes may serve as biomarkers of CaOx nephrolithiasis.
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Affiliation(s)
- Zijian Zhou
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, 200040, PR China
| | - Dexiang Feng
- Department of Urology, Dushu Lake Hospital Affiliated to Soochow University, Medical Center of Soochow University, Suzhou Dushu Lake Hospital, Suzhou, 215123, PR China
| | - Donghui Shi
- Department of Urology, Suzhou Wu Zhong People's Hospital, Suzhou, 215100, PR China
| | - Peng Gao
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, 200040, PR China; Clinical Research Center of Urolithiasis, Shanghai Medical College, Fudan University, Shanghai, 200040, PR China
| | - Lujia Wang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, 200040, PR China; Clinical Research Center of Urolithiasis, Shanghai Medical College, Fudan University, Shanghai, 200040, PR China.
| | - Zhong Wu
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, 200040, PR China; Clinical Research Center of Urolithiasis, Shanghai Medical College, Fudan University, Shanghai, 200040, PR China.
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Matyus SP, Wolak-Dinsmore J, Garcia E, Young RM, Connelly MA. Vantera Mediated Quantification of Urine Citrate and Creatinine: A New Technology to Assess Risk of Nephrolithiasis. Diagnostics (Basel) 2022; 12:2606. [PMID: 36359450 PMCID: PMC9689642 DOI: 10.3390/diagnostics12112606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/18/2022] [Accepted: 10/25/2022] [Indexed: 08/30/2023] Open
Abstract
Urine citrate is often used to identify patients at risk of recurrent nephrolithiasis or kidney stones. A high-throughput assay was developed to measure urine citrate and creatinine on the Vantera® Clinical Analyzer, a nuclear magnetic resonance (NMR) instrument designed for the clinical laboratory. Assay performance was evaluated and comparisons between the NMR and chemistry results were conducted. Linearity was demonstrated over a wide range of concentrations for citrate (6 and 2040 mg/L) and creatinine (2.8 and 1308 mg/dL). Intra-and inter-assay precision (%CV) ranged from 0.9 to 3.7% for citrate and 0.4 to 2.1% for creatinine. The correlation coefficients for the comparison between NMR and chemistry results were 0.98 (Y = 1.00X + 5.0) for citrate and 0.96 (Y = 0.968X + 0.97) for creatinine. The reference intervals for both analytes were confirmed. Ten endogenous and exogenous substances were tested and none were found to interfere with the assay results. In conclusion, the newly developed high-throughput NMR assay exhibited robust performance and generated results comparable to the currently utilized chemistry tests, thereby providing an alternative means to simultaneously quantify urine citrate and creatinine for clinical and research use. Furthermore, the NMR assay does not exhibit the same interference limitations as the chemistry tests and it enables multiplexing with other urine metabolite assays which saves time and costs.
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