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Cigula Kurajica V, Vogrinc Ž, Turčić A, Galić S. Determination of cystatin C reference interval for children in Croatia. Biochem Med (Zagreb) 2024; 34:010702. [PMID: 38125620 PMCID: PMC10731735 DOI: 10.11613/bm.2024.010702] [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: 05/24/2023] [Accepted: 09/27/2023] [Indexed: 12/23/2023] Open
Abstract
Introduction Cystatin C is considered an early marker of kidney damage. The aim was to determine the reference interval in children since this information was not available from the test manufacturer. Materials and methods Included were children aged 0 to 18 years undergoing routine check without history of any renal disease. Cystatin C was measured by the immunoturbidimetric method, and creatinine by the enzymatic method on a Cobas c501 analyzer (Roche Diagnostics, Manheim, Germany). Reference intervals were determined according to the CLSI C28-A3 guidelines using a robust method and a nonparametric percentile method, depending on the sample size. The Schwartz's formula was applied to estimate glomerular filtration (eGFR) from cystatin C. Results The cystatin C reference interval for children aged 1-18 years (N = 204, median 8 years) was from 0.61 mg/L (90% CI: 0.53 to 0.64) to 1.08 mg/L (90% CI: 1.07 to 1.14). Differences according to sex were not found. For children aged 0-1 years (N = 29, median 5 months), the reference interval was from 0.60 mg/L (90% CI: 0.48 to 0.72) to 1.49 mg/L (90% CI: 1.36 to 1.61). The sample size was too small to test the difference according to sex. The eGFR was 76 (70-88) mL/min/1.73m2 for males and 83 (74-92) mL/min/1.73m2 for females. Conclusion The cystatin C reference intervals for Croatian pediatric population according to age were determined. The cystatin C concentrations in children reach adulthood values after the first year. The cystatin C Schwartz's formula is applicable for eGFR calculation in children.
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Affiliation(s)
- Vlasta Cigula Kurajica
- Department for Laboratory Diagnostics, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Željka Vogrinc
- Department for Laboratory Diagnostics, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Ana Turčić
- Department for Laboratory Diagnostics, University Hospital Centre Zagreb, Zagreb, Croatia
| | - Slobodan Galić
- Department of Pediatrics, University Hospital Centre Zagreb, Zagreb, Croatia
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Brakert L, Berneking L, Both A, Berinson B, Huang J, Aepfelbacher M, Wolschke C, Wichmann D, Rohde H. Rapid development of cefiderocol resistance in a carbapenem-resistant Pseudomonas aeruginosa isolate associated with mutations in the pyoverdine biosynthesis pathway. J Glob Antimicrob Resist 2023; 34:59-62. [PMID: 37379881 DOI: 10.1016/j.jgar.2023.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 05/23/2023] [Accepted: 06/16/2023] [Indexed: 06/30/2023] Open
Abstract
Here we report the in vivo development of cefiderocol resistance within 11 days after therapy initiation in a critically ill patient with bloodstream infection, infection of peri-anal fistula, and pneumonia caused by a VIM-2 harbouring, carbapenem-resistant Pseudomonas aeruginosa. Compared to a cefiderocol-naïve P. aeruginosa blood culture isolate, agar diffusion susceptibility testing found a reduced cefiderocol inhibition zone diameter in a P. aeruginosa recovered from peri-anal abscess tissue cultures after initiation of cefiderocol therapy. Subsequent whole-genome sequencing suggested that both isolates were of clonal origin. Comparison of genomes found an accumulation of missense mutations within pvdP, pvdE, pvdJ, and pvdD (i.e. genes associated with biosynthesis of pyoverdine), the main siderophore produced by P. aeruginosa. Quantification of pyoverdine production under iron-depleted conditions showed a significantly (P = 0.0003) higher pyoverdine production by the cefiderocol-resistant isolate. While pyoverdine quantity alone appears not to be decisive for cefiderocol resistance, the reported case highlights the potentially rapid emergence of cefiderocol resistance in P. aeruginosa and points towards a potential involvement of iron up-take systems in this process.
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Affiliation(s)
- Luise Brakert
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center, Hamburg, Germany
| | - Laura Berneking
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center, Hamburg, Germany
| | - Anna Both
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center, Hamburg, Germany
| | - Benjamin Berinson
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center, Hamburg, Germany
| | - Jiabin Huang
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center, Hamburg, Germany
| | - Martin Aepfelbacher
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center, Hamburg, Germany
| | - Christine Wolschke
- Department of Stem Cell Transplantation, University Medical Center, Hamburg, Germany
| | - Dominic Wichmann
- Department of Intensive Care Medicine, University Medical Center, Hamburg, Germany
| | - Holger Rohde
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center, Hamburg, Germany.
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3
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van der Giet M, Nitschmann S. [Cystatin C-based estimation of glomerular filtration rate]. INNERE MEDIZIN (HEIDELBERG, GERMANY) 2023:10.1007/s00108-023-01544-8. [PMID: 37310431 DOI: 10.1007/s00108-023-01544-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Accepted: 05/12/2023] [Indexed: 06/14/2023]
Affiliation(s)
- Markus van der Giet
- Med. Klinik für Nephrologie und Internistische Intensivtherapie, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Deutschland.
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Albanell-Fernández M, Bastida C, Marcos Fendian Á, Mercadal J, Castro-Rebollo P, Soy-Muner D. Predictive performance of glomerular filtration rate equations based on cystatin C, creatinine and their combination in critically ill patients. Eur J Hosp Pharm 2023:ejhpharm-2023-003738. [PMID: 37137686 DOI: 10.1136/ejhpharm-2023-003738] [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: 02/24/2023] [Accepted: 04/18/2023] [Indexed: 05/05/2023] Open
Abstract
OBJECTIVE 24-hour urine creatinine clearance (ClCr 24 hours) remains the gold standard for estimating glomerular filtration rate (GFR) in critically ill patients; however, simpler methods are commonly used in clinical practice. Serum creatinine (SCr) is the most frequently used biomarker to estimate GFR; and cystatin C, another biomarker, has been shown to reflect GFR changes earlier than SCr. We assess the performance of equations based on SCr, cystatin C and their combination (SCr-Cyst C) for estimating GFR in critically ill patients. METHODS Observational unicentric study in a tertiary care hospital. Patients with cystatin C, SCr and ClCr 24 hours measurements in ±2 days admitted to an intensive care unit were included. ClCr 24 hours was considered the reference method. GFR was estimated using SCr-based equations: Chronic Kidney Disease Epidemiology Collaboration based on creatinine (CKD-EPI-Cr) and Cockcroft-Gault (CG); cystatin C-based equations: CKD-EPI-CystC and CAPA; and Cr-CystC-based equations: CKD-EPI-Cr-CystC. Performance of each equation was assessed by calculating bias and precision, and Bland-Altman plots were built. Further analysis was performed with stratified data into CrCl 24 hours <60, 60-130 and ≥130 mL/min/1.73 m2. RESULTS We included 275 measurements, corresponding to 186 patients. In the overall population, the CKD-EPI-Cr equation showed the lowest bias (2.6) and best precision (33.1). In patients with CrCl 24 hours <60 mL/min/1.73 m2, cystatin-C-based equations showed the lowest bias (<3.0) and CKD-EPI-Cr-CystC was the most accurate (13.6). In the subgroup of 60≤ CrCl 24 hours <130mL/min/1.73 m2, CKD-EPI-Cr-CystC was the most precise (20.9). However, in patients with CrCl 24 hours ≥130mL/min/1.73 m2, cystatin C-based equations underestimated GFR, while CG overestimated it (22.7). CONCLUSIONS Our study showed no evidence of superiority of any equation over the others for all evaluated parameters: bias, precision and Lin's concordance correlation coefficient. Cystatin C-based equations were less biased in individuals with impaired renal function (GFR <60 mL/min/1.73 m2). CKD-EPI-Cr-CystC performed properly in patients with GFR from 60-130 mL/min/1.73 m2 and none of them were accurate enough in patients ≥130 mL/min/1.73 m2.
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Affiliation(s)
- Marta Albanell-Fernández
- Pharmacy Service, Division of Medicines, Hospital Clinic de Barcelona, Barcelona, Catalunya, Spain
| | - Carla Bastida
- Pharmacy Service, Division of Medicines, Hospital Clinic de Barcelona, Barcelona, Catalunya, Spain
| | - Ángel Marcos Fendian
- Pharmacy Service, Division of Medicines, Hospital Clinic de Barcelona, Barcelona, Catalunya, Spain
| | - Jordi Mercadal
- Anesthesiology Department, Hospital Clinic de Barcelona, Barcelona, Catalunya, Spain
| | - Pedro Castro-Rebollo
- Medical Intensive Care Unit, Hospital Clinic de Barcelona, Barcelona, Catalunya, Spain
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Hospital Clinic de Barcelona, Barcelona, Catalunya, Spain
| | - Dolors Soy-Muner
- August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Hospital Clinic de Barcelona, Barcelona, Catalunya, Spain
- Pharmacy Service, Division of Medicines, Hospital Clinic de Barcelona, Barcelona, Spain
- Department of Pharmacology, Toxicology and Therapeutic Chemistry. School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona, Catalunya, Spain
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Deng J, He L, Liang Y, Hu L, Xu J, Fang H, Li Y, Chen C. Serum N-terminal pro-B-type natriuretic peptide and cystatin C for acute kidney injury detection in critically ill adults in China: a prospective, observational study. BMJ Open 2023; 13:e063896. [PMID: 36717146 PMCID: PMC9887693 DOI: 10.1136/bmjopen-2022-063896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 01/16/2023] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE Serum N-terminal pro-B-type natriuretic peptide (NT-proBNP) and cystatin C (sCysC) are available clinically and beneficial in diagnosing acute kidney injury (AKI). Our purpose is to identify the performance of their combined diagnosis for AKI in critically ill patients. DESIGN A prospectively recruited, observational study was performed. SETTING Adults admitted to the intensive care unit of a tertiary hospital in China. PARTICIPANTS A total of 1222 critically ill patients were enrolled in the study. MAIN OUTCOME MEASURES To identify the performance of the combined diagnosis of serum NT-proBNP and sCysC for AKI in critically ill patients. The area under the receiver operating characteristic curve (AUC-ROC), category-free net reclassification index (NRI) and incremental discrimination improvement (IDI) were utilised for comparing the discriminative powers of a combined and single biomarker adjusted model of clinical variables enriched with NT-proBNP and sCysC for AKI. RESULTS AKI was detected in 256 out of 1222 included patients (20.9%). AUC-ROC for NT-proBNP and sCysC to detect AKI had a significantly higher accuracy than any individual biomarker (p<0.05). After multivariate adjustment, a level of serum NT-proBNP ≥204 pg/mL was associated with 3.5-fold higher odds for AKI compared with those below the cut-off value. Similar results were obtained for sCysC levels (p<0.001). To detect AKI, adding NT-proBNP and sCysC to a clinical model further increased the AUC-ROC to 0.859 beyond that of the clinical model with or without sCysC (p<0.05). Moreover, the addition of these two to the clinical model significantly improved risk reclassification of AKI beyond that of the clinical model alone or with single biomarker (p<0.05), as measured by NRI and IDI. CONCLUSIONS In critically ill individuals, serum NT-proBNP, sCysC and clinical risk factors combination improve the discriminative power for diagnosing AKI.
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Affiliation(s)
- Jia Deng
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Department of Critical Care Medicine, The Second Hospital of Dalian Medical University, Dalian, Liaoning, China
| | - Linling He
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Shantou University Medical College, Shantou, Guangdong, China
| | - Yufan Liang
- Department of Emergency, Maoming People's Hospital, Maoming, Guangdong, China
- Guangdong Medical University, Zhanjiang, Guangdong, China
| | - Linhui Hu
- Department of Critical Care Medcine, Maoming People's Hospital, Maoming, China
| | - Jing Xu
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Heng Fang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Ying Li
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Chunbo Chen
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Fang M, Li J, Fang H, Wu J, Wu Z, He L, Deng J, Chen C. Prediction of acute kidney injury after total aortic arch replacement with serum cystatin C and urine N-acetyl-β-d-glucosaminidase: A prospective observational study. Clin Chim Acta 2023; 539:105-113. [PMID: 36521552 DOI: 10.1016/j.cca.2022.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/24/2022] [Accepted: 12/02/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Acute kidney injury (AKI) after total aortic arch replacement (TAAR) is frequent and associated with adverse outcomes, whereas its early detection remains a challenge. Serum cystatin C (sCysC) and urinary N-acetyl-β-d-glucosaminidase (uNAG) are clinically available renal biomarkers, but their combination for AKI detection requires more evidence. This study aimed to assess the discriminative abilities of these biomarkers in AKI after TAAR. MATERIALS AND METHODS Patients undergoing TAAR were included in this prospective observational study. The AKI prediction model was developed and internal verificated, and the significance of each variable was analyzed by random forest (RF). Finally, the best predictive critical values of sCysC and uNAG were explored by the AUC-ROC curve. RESULTS The AUC-ROC of the prediction model was substantially enhanced by adding sCysC and uNAG (0.909 vs 0.844, p < 0.001), and the clinical utility and risk reclassification were significantly improved. Additionally, the RF showed that sCysC and uNAG ranked first and second. The AUC-ROC for each were 0.864 and 0.802 respectively, and the cut-off values were 1.395 mg/L and 31.90 U/g Cre respectively. CONCLUSION The prediction model incorporating functional marker sCysC and tubular injury marker uNAG can improve the discriminative abilities of AKI after TAAR.
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Affiliation(s)
- Miaoxian Fang
- School of Medicine, South China University of Technology, Guangzhou 510006, Guangdong Province, China; Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangzhou 510080, Guangdong Province, China
| | - Jiaxin Li
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangzhou 510080, Guangdong Province, China
| | - Heng Fang
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China
| | - Jinlin Wu
- Department of Cardiac Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangdong Province, China
| | - Zheng Wu
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangzhou 510080, Guangdong Province, China
| | - Linling He
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangzhou 510080, Guangdong Province, China
| | - Jia Deng
- Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangzhou 510080, Guangdong Province, China
| | - Chunbo Chen
- School of Medicine, South China University of Technology, Guangzhou 510006, Guangdong Province, China; Department of Intensive Care Unit of Cardiac Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Cardiovascular Institute, Guangzhou 510080, Guangdong Province, China; Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong Province, China; Department of Critical Care Medicine, Shenzhen People's Hospital, Shenzhen 518020, Guangdong Province, China.
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Bai Y, Li Y, Tang Z, Hu L, Jiang X, Chen J, Huang S, Wu K, Xu W, Chen C. Urinary proteome analysis of acute kidney injury in post-cardiac surgery patients using enrichment materials with high-resolution mass spectrometry. Front Bioeng Biotechnol 2022; 10:1002853. [PMID: 36177176 PMCID: PMC9513377 DOI: 10.3389/fbioe.2022.1002853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 08/29/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Cardiac surgery-associated acute kidney injury (CSA-AKI) may increase the mortality and incidence rates of chronic kidney disease in critically ill patients. This study aimed to investigate the underlying correlations between urinary proteomic changes and CSA-AKI. Methods: Nontargeted proteomics was performed using nano liquid chromatography coupled with Orbitrap Exploris mass spectrometry (MS) on urinary samples preoperatively and postoperatively collected from patients with CSA-AKI. Gemini C18 silica microspheres were used to separate and enrich trypsin-hydrolysed peptides under basic mobile phase conditions. Differential analysis was conducted to screen out urinary differential expressed proteins (DEPs) among patients with CSA-AKI for bioinformatics. Kyoto Encyclopedia of Genes and Genomes (KEGG) database analysis was adopted to identify the altered signal pathways associated with CSA-AKI. Results: Approximately 2000 urinary proteins were identified and quantified through data-independent acquisition MS, and 324 DEPs associated with AKI were screened by univariate statistics. According to KEGG enrichment analysis, the signal pathway of protein processing in the endoplasmic reticulum was enriched as the most up-regulated DEPs, and cell adhesion molecules were enriched as the most down-regulated DEPs. In protein–protein interaction analysis, the three hub targets in the up-regulated DEPs were α-1-antitrypsin, β-2-microglobulin and angiotensinogen, and the three key down-regulated DEPs were growth arrest-specific protein 6, matrix metalloproteinase-9 and urokinase-type plasminogen activator. Conclusion: Urinary protein disorder was observed in CSA-AKI due to ischaemia and reperfusion. The application of Gemini C18 silica microspheres can improve the protein identification rate to obtain highly valuable resources for the urinary DEPs of AKI. This work provides valuable knowledge about urinary proteome biomarkers and essential resources for further research on AKI.
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Affiliation(s)
- Yunpeng Bai
- Center of Scientific Research, Maoming People’s Hospital, Maoming, China
- Department of Critical Care Medicine, Maoming People’s Hospital, Maoming, China
| | - Ying Li
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhizhong Tang
- Department of Urology, Maoming People’s Hospital, Maoming, China
| | - Linhui Hu
- Department of Critical Care Medicine, Maoming People’s Hospital, Maoming, China
| | - Xinyi Jiang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Jingchun Chen
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
| | - Sumei Huang
- Center of Scientific Research, Maoming People’s Hospital, Maoming, China
- Department of Emergency, Maoming People’s Hospital, Maoming, China
- Biological Resource Center of Maoming People’s Hospital, Maoming, China
| | - Kunyong Wu
- Center of Scientific Research, Maoming People’s Hospital, Maoming, China
- Biological Resource Center of Maoming People’s Hospital, Maoming, China
| | - Wang Xu
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Chunbo Chen
- Department of Emergency, Maoming People’s Hospital, Maoming, China
- Department of Critical Care Medicine, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Renal Failure Research, Southern Medical University, Guangzhou, China
- *Correspondence: Chunbo Chen, , orcid.org/0000-0001-5662-497X
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Updated Pathways in Cardiorenal Continuum after Kidney Transplantation. TRANSPLANTOLOGY 2022. [DOI: 10.3390/transplantology3020017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Cardiovascular disease (CVD) remains one of the leading causes for increased morbidity and mortality in chronic kidney disease (CKD). Kidney transplantation is the preferred treatment option for CKD G5. Improved perioperative and postoperative care, personalized immunosuppressive regimes, and refined matching procedures of kidney transplants improves cardiovascular health in the early posttransplant period. However, the long-term burden of CVD is considerable. Previously underrecognized, the role of the complement system alongside innate immunity, inflammaging, structural changes in the glomerular filtration barrier and early vascular ageing also seem to play an important role in the posttransplant management. This review provides up-to-date knowledge on these pathways that may influence the cardiovascular and renal continuum and identifies potential targets for future therapies. Arterial destiffening strategies and the applicability of sodium-glucose cotransporter 2 inhibitors and their role in cardiovascular health after kidney transplantation are also addressed.
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Bai Y, Zhang H, Wu Z, Huang S, Luo Z, Wu K, Hu L, Chen C. Use of Ultra High Performance Liquid Chromatography with High Resolution Mass Spectrometry to Analyze Urinary Metabolome Alterations Following Acute Kidney Injury in Post-Cardiac Surgery Patients. J Mass Spectrom Adv Clin Lab 2022; 24:31-40. [PMID: 35252948 PMCID: PMC8892161 DOI: 10.1016/j.jmsacl.2022.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 02/08/2022] [Accepted: 02/17/2022] [Indexed: 12/20/2022] Open
Abstract
Cardiac surgery-associated AKI results in dramatic changes in urinary metabolome. Urinary metabolite disorder observed in patients with cardiac surgery-associated AKI. When metaboloite disorder was due to ischaemia and medical treatment, kidneys could return to normal. This work provides data about urinary metabolic profiles and resources for further research on AKI.
Background Cardiac surgery-associated acute kidney injury (AKI) can increase the mortality and morbidity, and the incidence of chronic kidney disease, in critically ill survivors. The purpose of this research was to investigate possible links between urinary metabolic changes and cardiac surgery-associated AKI. Methods Using ultra-high-performance liquid chromatography coupled with Q-Exactive Orbitrap mass spectrometry, non-targeted metabolomics was performed on urinary samples collected from groups of patients with cardiac surgery-associated AKI at different time points, including Before_AKI (uninjured kidney), AKI_Day1 (injured kidney) and AKI_Day14 (recovered kidney) groups. The data among the three groups were analyzed by combining multivariate and univariate statistical methods, and urine metabolites related to AKI in patients after cardiac surgery were screened. Altered metabolic pathways associated with cardiac surgery-induced AKI were identified by examining the Kyoto Encyclopedia of Genes and Genomes database. Results The secreted urinary metabolome of the injured kidney can be well separated from the urine metabolomes of uninjured or recovered patients using multivariate and univariate statistical analyses. However, urine samples from the AKI_Day14 and Before_AKI groups cannot be distinguished using either of the two statistical analyses. Nearly 4000 urinary metabolites were identified through bioinformatics methods at Annotation Levels 1–4. Several of these differential metabolites may also perform essential biological functions. Differential analysis of the urinary metabolome among groups was also performed to provide potential prognostic indicators and changes in signalling pathways. Compared with the uninjured kidney group, the patients with cardiac surgery-associated AKI displayed dramatic changes in renal metabolism, including sulphur metabolism and amino acid metabolism. Conclusions Urinary metabolite disorder was observed in patients with cardiac surgery-associated AKI due to ischaemia and medical treatment, and the recovered patients’ kidneys were able to return to normal. This work provides data on urine metabolite markers and essential resources for further research on AKI.
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Affiliation(s)
- Yunpeng Bai
- Center of Scientific Research, Maoming People’s Hospital, Maoming 525000, China
- Department of Critical Care Medicine, Maoming People’s Hospital, Maoming 525000, China
| | - Huidan Zhang
- Department of Intensive Care Unit of Cardiovascular Surgery, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- School of Medicine, South China University of Technology, Guangzhou 510006, China
| | - Zheng Wu
- Department of Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Sumei Huang
- Center of Scientific Research, Maoming People’s Hospital, Maoming 525000, China
- Biological Resource Center of Maoming People’s Hospital, Maoming 525000, China
| | - Zhidan Luo
- Center of Scientific Research, Maoming People’s Hospital, Maoming 525000, China
| | - Kunyong Wu
- Center of Scientific Research, Maoming People’s Hospital, Maoming 525000, China
- Biological Resource Center of Maoming People’s Hospital, Maoming 525000, China
| | - Linhui Hu
- Center of Scientific Research, Maoming People’s Hospital, Maoming 525000, China
- Department of Critical Care Medicine, Maoming People’s Hospital, Maoming 525000, China
| | - Chunbo Chen
- Department of Critical Care Medicine, Maoming People’s Hospital, Maoming 525000, China
- Corresponding author at: Department of Critical Care Medicine, Maoming People’s Hospital, Maoming 525000, China.
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Assessment of 17 clinically available renal biomarkers to predict acute kidney injury in critically ill patients. J Transl Int Med 2021; 9:273-284. [PMID: 35136726 PMCID: PMC8802406 DOI: 10.2478/jtim-2021-0047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
ABSTRACT
Background:
Systematic estimation of renal biomarkers in the intensive care unit (ICU) patients is lacking. Seventeen biomarkers were assessed to predict acute kidney injury (AKI) after admission to ICU.
Materials and methods:
A prospective, observational study was conducted in the general ICU of Guangdong Provincial People’s Hospital. Seventeen serum or urine biomarkers were studied for their abilities alone or in combination for predicting AKI and severe AKI.
Results:
Of 1498 patients, 376 (25.1%) developed AKI. Serum cystatin C (CysC) showed the best performance for predicting both AKI (area under the receiver operator characteristic curve [AUC] = 0.785, mean square error [MSE] = 0.118) and severe AKI (AUC = 0.883, MSE = 0.06). Regarding biomarkers combinations, CysC plus N-acetyl-β-d-glucosaminidase-to-creatinine ratio (NAG/Cr) was the best for predicting AKI (AUC = 0.856, MSE = 0.21). At the same time, CysC plus lactic acid (LAC) performed the best for predicting severe AKI (AUC = 0.907, MSE = 0.058). Regarding combinations of biomarkers and clinical markers, CysC plus Acute Physiology and Chronic Health Evaluation (APACHE) II score showed the best performance for predicting AKI (AUC = 0.868, MSE = 0.407). In contrast, CysC plus Multiple Organ Dysfunction Score (MODS) had the highest predictive ability for severe AKI (AUC = 0.912, MSE = 0.488).
Conclusion:
Apart from CysC, the combination of most clinically available biomarkers or clinical markers does not significantly improve the forecasting ability, and the cost–benefit ratio is not economical.
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Ebert N, Bevc S, Bökenkamp A, Gaillard F, Hornum M, Jager KJ, Mariat C, Eriksen BO, Palsson R, Rule AD, van Londen M, White C, Schaeffner E. Assessment of kidney function: clinical indications for measured GFR. Clin Kidney J 2021; 14:1861-1870. [PMID: 34345408 PMCID: PMC8323140 DOI: 10.1093/ckj/sfab042] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Indexed: 12/18/2022] Open
Abstract
In the vast majority of cases, glomerular filtration rate (GFR) is estimated using serum creatinine, which is highly influenced by age, sex, muscle mass, body composition, severe chronic illness and many other factors. This often leads to misclassification of patients or potentially puts patients at risk for inappropriate clinical decisions. Possible solutions are the use of cystatin C as an alternative endogenous marker or performing direct measurement of GFR using an exogenous marker such as iohexol. The purpose of this review is to highlight clinical scenarios and conditions such as extreme body composition, Black race, disagreement between creatinine- and cystatin C-based estimated GFR (eGFR), drug dosing, liver cirrhosis, advanced chronic kidney disease and the transition to kidney replacement therapy, non-kidney solid organ transplant recipients and living kidney donors where creatinine-based GFR estimation may be invalid. In contrast to the majority of literature on measured GFR (mGFR), this review does not include aspects of mGFR for research or public health settings but aims to reach practicing clinicians and raise their understanding of the substantial limitations of creatinine. While including cystatin C as a renal biomarker in GFR estimating equations has been shown to increase the accuracy of the GFR estimate, there are also limitations to eGFR based on cystatin C alone or the combination of creatinine and cystatin C in the clinical scenarios described above that can be overcome by measuring GFR with an exogenous marker. We acknowledge that mGFR is not readily available in many centres but hope that this review will highlight and promote the expansion of kidney function diagnostics using standardized mGFR procedures as an important milestone towards more accurate and personalized medicine.
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Affiliation(s)
- Natalie Ebert
- Institute of Public Health, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Sebastjan Bevc
- Department of Nephrology, Faculty of Medicine, Clinic for Internal Medicine, University Medical Center Maribor, University of Maribor, Maribor, Slovenia
| | - Arend Bökenkamp
- Department of Pediatric Nephrology, Amsterdam University Medical Center, Emma Kinderziekenhuis, Amsterdam, The Netherlands
| | - Francois Gaillard
- AP-HP, Hôpital Bichat, Service de Néphrologie, Université de Paris, INSERM U1149, Paris, France
| | - Mads Hornum
- Department of Nephrology, Rigshospitalet and Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kitty J Jager
- Department of Medical Informatics, ERA-EDTA Registry, Amsterdam Public Health Research Institute, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | | | - Bjørn Odvar Eriksen
- Metabolic and Renal Research Group, UiT The Arctic University of Norway, Tromsø, Norway
| | - Runolfur Palsson
- Internal Medicine Services, Division of Nephrology, Landspitali–The National University Hospital of Iceland and Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | - Andrew D Rule
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Marco van Londen
- Department of Internal Medicine, Division of Nephrology, University Medical Center Groningen, Groningen, The Netherlands
| | - Christine White
- Department of Medicine, Division of Nephrology, Queen’s University, Kingston, Canada
| | - Elke Schaeffner
- Institute of Public Health, Charité Universitätsmedizin Berlin, Berlin, Germany
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