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Habeichi NJ, Amin G, Lakkis B, Kataya R, Mericskay M, Booz GW, Zouein FA. Potential Alternative Receptors for SARS-CoV-2-Induced Kidney Damage: TLR-4, KIM-1/TIM-1, and CD147. FRONT BIOSCI-LANDMRK 2024; 29:8. [PMID: 38287815 PMCID: PMC10924798 DOI: 10.31083/j.fbl2901008] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 01/31/2024]
Abstract
Kidney damage in severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can occur even in patients with no underlying kidney disease. Signs of kidney problems can progress to a state that demands dialysis and hampering recovery. Although not without controversy, emerging evidence implicates direct infectivity of SARS-CoV-2 in the kidney. At the early stage of the pandemic, consideration was mainly on the well-recognized angiotensin-converting enzyme 2 (ACE2) receptor as being the site for viral interaction and subsequent cellular internalization. Despite the abundance of ACE2 receptors in the kidneys, researchers have expanded beyond ACE2 and identified novel viral entry pathways that could be advantageously explored as therapeutic targets. This review presents the potential involvement of toll-like receptor 4 (TLR-4), kidney injury molecule-1/T cell immunoglobulin mucin domain 1 (KIM-1/TIM-1), and cluster of differentiation 147 (CD147) in SARS-CoV-2-associated renal damage. In this context, we address the unresolved issues surrounding SARS-CoV-2 renal infectivity.
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Affiliation(s)
- Nada J. Habeichi
- Department of Pharmacology and Toxicology, American University of Beirut Faculty of Medicine, 1107-2020 Beirut, Lebanon
- The Cardiovascular, Renal, and Metabolic Diseases Research Center of Excellence, American University of Beirut Medical Center, Riad El-Solh, 1107-2020 Beirut, Lebanon
- Department of Signaling and Cardiovascular Pathophysiology, University Paris Saclay, INSERM UMR_1180, 91400 Orsay, France
- MatriceLab Innove Laboratory, Immeuble Les Gemeaux, 94000 Creteil, France
| | - Ghadir Amin
- Department of Pharmacology and Toxicology, American University of Beirut Faculty of Medicine, 1107-2020 Beirut, Lebanon
- The Cardiovascular, Renal, and Metabolic Diseases Research Center of Excellence, American University of Beirut Medical Center, Riad El-Solh, 1107-2020 Beirut, Lebanon
- Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Bachir Lakkis
- Division of Cardiology, Department of Internal Medicine, American University of Beirut Medical Center, 1107-2020 Beirut, Lebanon
| | - Rayane Kataya
- Department of Pharmacology and Toxicology, American University of Beirut Faculty of Medicine, 1107-2020 Beirut, Lebanon
- The Cardiovascular, Renal, and Metabolic Diseases Research Center of Excellence, American University of Beirut Medical Center, Riad El-Solh, 1107-2020 Beirut, Lebanon
| | - Mathias Mericskay
- Department of Signaling and Cardiovascular Pathophysiology, University Paris Saclay, INSERM UMR_1180, 91400 Orsay, France
| | - George W. Booz
- Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Fouad A. Zouein
- Department of Pharmacology and Toxicology, American University of Beirut Faculty of Medicine, 1107-2020 Beirut, Lebanon
- The Cardiovascular, Renal, and Metabolic Diseases Research Center of Excellence, American University of Beirut Medical Center, Riad El-Solh, 1107-2020 Beirut, Lebanon
- Department of Signaling and Cardiovascular Pathophysiology, University Paris Saclay, INSERM UMR_1180, 91400 Orsay, France
- Department of Pharmacology and Toxicology, School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216, USA
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Gunasekara TDKSC, De Silva PMCS, Chandana EPS, Jayasinghe S, Herath C, Siribaddana S, Jayasundara N. Body mass index and implications for pediatric kidney health: a cross-sectional study with urinary biomarkers. Pediatr Nephrol 2024; 39:167-175. [PMID: 37453961 DOI: 10.1007/s00467-023-06071-0] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 06/20/2023] [Accepted: 06/20/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Extremes of unhealthy body weight, particularly obesity, are known to increase the risk of chronic kidney diseases. However, the current knowledge of kidney health outcomes associated with unhealthy body weight remains incomprehensive, especially in pediatrics. Therefore, the present study aimed to evaluate body mass index (BMI) and its potential associations with kidney health in a selected subset of school students in Sri Lanka. METHODS This cross-sectional study was conducted among students of both sexes in the range of 11-18 years of age (N = 1078) in education zones with no reported cases of chronic kidney disease of uncertain etiology. Based on sex- and age-specific BMI percentiles (LMS method), the participants were classified into five BMI groups (severely thin, thin, healthy, overweight, and obese) for measurement of urinary biomarkers of kidney injury: kidney injury molecule (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), and albumin creatinine ratio (ACR). RESULTS The median urinary levels of NGAL, ACR, and particularly KIM-1, which is a more sensitive indicator of kidney injury, showed no significant differences across the BMI strata. Importantly, moderate correlations of BMI with KIM-1 and NGAL were identified in severely thin girls. CONCLUSIONS According to the present study, these findings do not produce plausibly strong evidence to establish a potential association of BMI with altered kidney function in the studied pediatric communities. Particularly, a likelihood of abnormal kidney health outcomes associated with undernutrition is apparent in severely thin girls. However, in-depth studies are warranted to develop a comprehensive understanding of the associations of nutritional status with pediatric kidney health in Sri Lanka. A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- T D K S C Gunasekara
- Department of Zoology, Faculty of Science, University of Ruhuna, Matara, 81000, Sri Lanka
| | - P Mangala C S De Silva
- Department of Zoology, Faculty of Science, University of Ruhuna, Matara, 81000, Sri Lanka.
| | - E P S Chandana
- Department of Biosystems Technology, Faculty of Technology, University of Ruhuna, Matara, 81000, Sri Lanka
| | - Sudheera Jayasinghe
- Department of Pharmacology, Faculty of Medicine, University of Ruhuna, Galle, 80000, Sri Lanka
| | - Chula Herath
- Department of Nephrology, Sri Jayewardenepura General Hospital, Colombo, 10100, Sri Lanka
| | - Sisira Siribaddana
- Department of Medicine, Faculty of Medical & Allied Sciences, Rajarata University, Saliyapura, 50008, Sri Lanka
| | - Nishad Jayasundara
- Nicholas School of the Environment, Duke University, Durham, NC, 27708, USA
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Bezerra GF, Meneses GC, Albuquerque PLMM, Lopes NC, Santos RSS, da Silva JC, Mota SMB, Guimarães RR, Guimarães FR, Guimarães ÁR, Adamian CMC, de Lima PR, Bandeira ICJ, Dantas MMP, Junior GBS, Oriá RB, Daher EF, Martins AMC. Urinary tubular biomarkers as predictors of death in critically ill patients with COVID-19. Biomark Med 2022; 16:681-692. [PMID: 35531623 PMCID: PMC9083946 DOI: 10.2217/bmm-2021-0631] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 04/20/2022] [Indexed: 12/11/2022] Open
Abstract
Aim: To evaluate the prediction capacity of urinary biomarkers for death in critically ill patients with COVID-19. Methods: This is a prospective study with critically ill patients due to COVID-19 infection. The urinary biomarkers NGAL, KIM-1, MCP-1 and nephrin were quantified on ICU admission. Results: There was 40% of death. Urinary nephrin and MCP-1 had no association with death. Tubular biomarkers (proteinuria, NGAL and KIM-1) were predictors of death and cut-off values of them for death were useful in stratify patients with worse prognosis. In a multivariate cox regression analysis, only NGAL remains associated with a two-mount survival chance. Conclusion: Kidney tubular biomarkers, mostly urinary NGAL, had useful capacity to predict death in critically ill COVID-19 patients.
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Affiliation(s)
- Gabriela F Bezerra
- Post-Graduate Program in Pharmacology, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-275, Brazil
| | - Gdayllon C Meneses
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-140, Brazil
| | - Polianna LMM Albuquerque
- Public Health Post-Graduate Program, School of Medicine, Health Sciences Center, Universidade de Fortaleza. Fortaleza, Ceará, 60811-905, Brazil
- School of Medicine, Health Sciences Center, Universidade de Fortaleza. Fortaleza, Ceará, 60811-905, Brazil
- Instituto José Frota (IJF) Hospital, Fortaleza, Ceará, 60025-061, Brazil
| | - Nicole C Lopes
- Post-Graduate Program in Pharmacology, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-275, Brazil
| | - Ranieri SS Santos
- Post-Graduate Program in Pharmacology, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-275, Brazil
| | - Juliana C da Silva
- Instituto José Frota (IJF) Hospital, Fortaleza, Ceará, 60025-061, Brazil
| | - Sandra MB Mota
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-140, Brazil
- Instituto José Frota (IJF) Hospital, Fortaleza, Ceará, 60025-061, Brazil
| | - Rodrigo R Guimarães
- Public Health Post-Graduate Program, School of Medicine, Health Sciences Center, Universidade de Fortaleza. Fortaleza, Ceará, 60811-905, Brazil
| | | | - Álvaro R Guimarães
- School of Medicine, Hospital Universitário Walter Cantídio, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-372, Brazil
| | - Caio MC Adamian
- School of Medicine, Hospital Universitário Walter Cantídio, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-372, Brazil
| | - Paula R de Lima
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-140, Brazil
| | - Izabel CJ Bandeira
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-140, Brazil
| | - Márcia MP Dantas
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-140, Brazil
- Instituto José Frota (IJF) Hospital, Fortaleza, Ceará, 60025-061, Brazil
| | - Geraldo BS Junior
- Public Health Post-Graduate Program, School of Medicine, Health Sciences Center, Universidade de Fortaleza. Fortaleza, Ceará, 60811-905, Brazil
- School of Medicine, Health Sciences Center, Universidade de Fortaleza. Fortaleza, Ceará, 60811-905, Brazil
| | - Reinaldo B Oriá
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-140, Brazil
- Laboratory of Tissue Healing, Ontogeny, & Nutrition, Department of Morphology, Institute of Biomedicine, Faculty of Medicine, Universidade Federal do Ceará, Fortaleza, Ceará, 60430-270, Brazil
| | - Elizabeth F Daher
- Medical Sciences Post-Graduate Program, Department of Internal Medicine, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-140, Brazil
| | - Alice MC Martins
- Post-Graduate Program in Pharmacology, School of Medicine, Universidade Federal do Ceará. Fortaleza, Ceará, 60430-275, Brazil
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Telford EA, Sanders AJ, Owen S, Ruge F, Harrison GM, Jiang WG, Martin TA. Hepatitis A Virus Cellular Receptor 1 (HAVcr-1) Initiates Prostate Cancer Progression in Human Cells via Hepatocyte Growth Factor (HGF)-Induced Changes in Junctional Integrity. Biomolecules 2022; 12:biom12020338. [PMID: 35204839 PMCID: PMC8869406 DOI: 10.3390/biom12020338] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 02/10/2022] [Accepted: 02/17/2022] [Indexed: 11/16/2022] Open
Abstract
Background: HAVcR-1 has been linked to cancer aetiology and may regulate junctional complexes, with its role in prostate cancer still unexplored. This study aims to investigate the expression of HAVcR-1 in prostate cancer samples and the exploration of the cellular/molecular impact of HAVcR-1. Methods: Levels of HAVcR-1 ectodomain in the serum of prostate cancer patients were compared to healthy controls, and assessed as the total protein and gene expression of HAVcR-1 and tissues sections. The manipulation of HAVcR-1 levels within prostate cancer cell lines determined changes in cell behaviour using in vitro cell models and barrier function assays. Protein/phosphoprotein levels were assessed using Western blotting. Results: Levels of HAVcR-1 ectodomain from serum were decreased in patients with prostate cancer. Ectodomain levels correlated with the Gleason score. Histologically, the total protein/gene expression of HAVcR-1 was overexpressed in prostate cancer. The overexpression of HAVcR-1 in prostate cancer cell lines resulted in key changes in cell behaviour and the phosphorylation of β-catenin with a concurrent decrease in membranous E-cadherin, increased nuclear β-catenin and increased cyclin D1 protein expression, which were associated with HGF-promoted changes in the barrier function. Conclusions: HAVcR-1 expression and ectodomain release coincides with the presence of prostate cancer; thus, indicating HAVcR-1 as a potential biomarker to aid in diagnostics, and implicating HAVcR-1 in the dysregulation of junctional complexes.
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Kerr D, Gong Z, Suwatthee T, Luoma A, Roy S, Scarpaci R, Hwang HL, Henderson JM, Cao KD, Bu W, Lin B, Tietjen GT, Steck TL, Adams EJ, Lee KYC. How Tim proteins differentially exploit membrane features to attain robust target sensitivity. Biophys J 2021; 120:4891-4902. [PMID: 34529946 PMCID: PMC8595564 DOI: 10.1016/j.bpj.2021.09.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 07/24/2021] [Accepted: 09/08/2021] [Indexed: 12/17/2022] Open
Abstract
Immune surveillance cells such as T cells and phagocytes utilize integral plasma membrane receptors to recognize surface signatures on triggered and activated cells such as those in apoptosis. One such family of plasma membrane sensors, the transmembrane immunoglobulin and mucin domain (Tim) proteins, specifically recognize phosphatidylserine (PS) but elicit distinct immunological responses. The molecular basis for the recognition of lipid signals on target cell surfaces is not well understood. Previous results suggest that basic side chains present at the membrane interface on the Tim proteins might facilitate association with additional anionic lipids including but not necessarily limited to PS. We, therefore, performed a comparative quantitative analysis of the binding of the murine Tim1, Tim3, and Tim4, to synthetic anionic phospholipid membranes under physiologically relevant conditions. X-ray reflectivity and vesicle binding studies were used to compare the water-soluble domain of Tim3 with results previously obtained for Tim1 and Tim4. Although a calcium link was essential for all three proteins, the three homologs differed in how they balance the hydrophobic and electrostatic interactions driving membrane association. The proteins also varied in their sensing of phospholipid chain unsaturation and showed different degrees of cooperativity in their dependence on bilayer PS concentration. Surprisingly, trace amounts of anionic phosphatidic acid greatly strengthened the bilayer association of Tim3 and Tim4, but not Tim1. A novel mathematical model provided values for the binding parameters and illuminated the complex interplay among ligands. In conclusion, our results provide a quantitative description of the contrasting selectivity used by three Tim proteins in the recognition of phospholipids presented on target cell surfaces. This paradigm is generally applicable to the analysis of the binding of peripheral proteins to target membranes through the heterotropic cooperative interactions of multiple ligands.
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Affiliation(s)
- Daniel Kerr
- Program in Biophysical Sciences, Institute for Biophysical Dynamics, Chicago, Illinois; Department of Chemistry, Chicago, Illinois; James Franck Institute, Chicago, Illinois
| | - Zhiliang Gong
- Department of Chemistry, Chicago, Illinois; James Franck Institute, Chicago, Illinois
| | | | | | - Sobhan Roy
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois
| | - Renee Scarpaci
- City University of New York City College, New York, New York
| | - Hyeondo Luke Hwang
- Department of Chemistry, Chicago, Illinois; James Franck Institute, Chicago, Illinois
| | - J Michael Henderson
- Department of Chemistry, Chicago, Illinois; James Franck Institute, Chicago, Illinois
| | - Kathleen D Cao
- Department of Chemistry, Chicago, Illinois; James Franck Institute, Chicago, Illinois
| | - Wei Bu
- NSF's ChemMatCARS, The University of Chicago, Chicago, Illinois
| | - Binhua Lin
- James Franck Institute, Chicago, Illinois; NSF's ChemMatCARS, The University of Chicago, Chicago, Illinois
| | - Gregory T Tietjen
- Department of Surgery, Section of Transplant and Immunology and Department of Biomedical Engineering, Yale University, New Haven, Connecticut
| | - Theodore L Steck
- Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois
| | - Erin J Adams
- Program in Biophysical Sciences, Institute for Biophysical Dynamics, Chicago, Illinois; Committee on Immunology, Chicago, Illinois; Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, Illinois
| | - Ka Yee C Lee
- Program in Biophysical Sciences, Institute for Biophysical Dynamics, Chicago, Illinois; Department of Chemistry, Chicago, Illinois; James Franck Institute, Chicago, Illinois.
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Vogel MJ, Mustroph J, Staudner ST, Leininger SB, Hubauer U, Wallner S, Meindl C, Hanses F, Zimmermann M, Maier LS, Jungbauer CG, Hupf J. Kidney injury molecule-1: potential biomarker of acute kidney injury and disease severity in patients with COVID-19. J Nephrol 2021; 34:1007-1018. [PMID: 34110585 PMCID: PMC8190170 DOI: 10.1007/s40620-021-01079-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/24/2021] [Indexed: 02/07/2023]
Abstract
AIMS The aim of the current study was to evaluate whether tubular markers kidney injury molecule-1 (KIM-1) and N-acetyl-ß-glucosaminidase (NAG) are related to acute kidney injury (AKI) and severe disease in patients with COVID-19. METHODS AND RESULTS In this prospective observational clinical trial we examined a cohort of 80 patients with proof of acute respiratory infection and divided them into a COVID-19 cohort (n = 54) and a control cohort (n = 26). KIM-1 and NAG were measured from urine samples collected in the emergency department. We assessed the development of AKI, admission to the intensive care unit (ICU) and intrahospital death as clinical endpoints. Urinary KIM-1 and NAG were not significantly different between patients with SARS-CoV-2 and those with other respiratory infections (each p = n.s.). Eight patients from the COVID-19 cohort and five of the non-COVID-19-patients suffered from acute kidney injury during their stay. Nine COVID-19 patients and two non-COVID-19 patients were admitted to the ICU. KIM-1 was significantly elevated in COVID-19 patients with, compared to those without AKI (p = 0.005), as opposed to NAG and creatinine (each p = n.s.). Furthermore, KIM-1 was significantly elevated in the patients with COVID-19 that had to be transferred to the ICU (p = 0.015), in contrast to NAG and creatinine (each p = n.s.). CONCLUSION Assessing KIM-1 in patients with COVID-19 might provide additional value in recognizing AKI at an early stage of disease. Further, KIM-1 might indicate higher risk for clinical deterioration as displayed by admission to the ICU.
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Affiliation(s)
- Manuel J Vogel
- Department of Internal Medicine II, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany.
| | - Julian Mustroph
- Department of Internal Medicine II, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Stephan T Staudner
- Department of Internal Medicine II, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Simon B Leininger
- Department of Internal Medicine II, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Ute Hubauer
- Department of Internal Medicine II, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Stefan Wallner
- Department of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Christine Meindl
- Department of Internal Medicine II, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Frank Hanses
- Emergency Department, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
- Department of Infection Prevention and Infectious Diseases, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Markus Zimmermann
- Emergency Department, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Lars S Maier
- Department of Internal Medicine II, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Carsten G Jungbauer
- Department of Internal Medicine II, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - Julian Hupf
- Emergency Department, University Hospital Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
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Díaz de León-Martínez L, Díaz-Barriga F, Barbier O, Ortíz DLG, Ortega-Romero M, Pérez-Vázquez F, Flores-Ramírez R. Evaluation of emerging biomarkers of renal damage and exposure to aflatoxin-B 1 in Mexican indigenous women: a pilot study. Environ Sci Pollut Res Int 2019; 26:12205-12216. [PMID: 30835068 DOI: 10.1007/s11356-019-04634-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 02/19/2019] [Indexed: 05/18/2023]
Abstract
Aflatoxins (AFs) are mycotoxins produced by Aspergillus parasiticus and Aspergillus flavus which frequently contaminate maize. These compounds are considered toxic, especially AFB1 which has been classified as a human carcinogen, due to its relationship with the generation of hepatocellular carcinoma. Studies in vivo, in animal models, prove that chronic consumption of AFB1 has an association with renal adverse effects, but evidence in humans is scarce. Therefore, the main objective of this research was to conduct a pilot study to evaluate the correlation between exposure to AFB1 and early-stage renal damage in indigenous women of San Luis Potosí, Mexico. Exposure to AFB1 was measured through the biomarker AFB1-lysine and renal damage through kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), and cystatin-C (Cys-C). AFB1-Lys was measured by HPLC-FLD. The method was validated with a correlation coefficient of 0.99 and limit of detection and quantification of 3.5 and 4.7 pg mL-1, respectively. Levels of NGAL, KIM-1, and Cys-C were determined (median (P25-P75), 5.96 (3.16-15.91), 0.137 (0.137-0.281), and 18.49 (5.76-29.57) ng mL-1, respectively). Additionally, glomerular filtration rate (GFR) (83.3 (59.8-107.4) mL/min/1.73 m2) and serum creatinine (SCr) (0.88 (0.72-1.22) mg dL-1) were obtained. The median concentrations for AFB1-Lys were 2.08 (1.89-5.8) pg mg-1 of albumin. Statistically significant correlations between AFB1-Lys/KIM-1 (Rho = 0.498, p = 0.007) and AFB1/Cys-C (Rho = 0.431, p = 0.014) were found. Our results indicate that women are exposed to AFB1, due to the fact that the AFB1-Lys biomarker was found in a high percentage of the study population (83%). In addition, the results of exposure to AFB1 show a strong significant correlation between KIM-1 and Cys-C that may indicate the toxic renal effect. These results are alarming because of the high toxicity of this compound and require adequate intervention to reduce AFB1 exposure in these populations.
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Affiliation(s)
- Lorena Díaz de León-Martínez
- Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosí, SLP, Mexico
| | - Fernando Díaz-Barriga
- Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosí, SLP, Mexico
| | - Olivier Barbier
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados-Instituto Politécnico Nacional (CINVESTAV-IPN), Mexico City, Mexico
| | - Dora Linda Guzmán Ortíz
- Departamento de Biotecnología y Bioquímica Centro de Investigación de Estudios Avanzados del -Instituto Politécnico Nacional (CINVESTAV-IPN), Campus Guanajuato, Irapuato, Mexico
| | - Manolo Ortega-Romero
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados-Instituto Politécnico Nacional (CINVESTAV-IPN), Mexico City, Mexico
| | - Francisco Pérez-Vázquez
- Centro de Investigación Aplicada en Ambiente y Salud (CIAAS), Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosí, SLP, Mexico
| | - Rogelio Flores-Ramírez
- CONACYT Research Fellow, Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), Avenida Sierra Leona No. 550, Colonia Lomas Segunda Sección, 78210, San Luis Potosí, SLP, Mexico.
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Gondaliya P, Dasare A, Srivastava A, Kalia K. miR29b regulates aberrant methylation in In-Vitro diabetic nephropathy model of renal proximal tubular cells. PLoS One 2018; 13:e0208044. [PMID: 30496316 PMCID: PMC6264835 DOI: 10.1371/journal.pone.0208044] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/09/2018] [Indexed: 01/10/2023] Open
Abstract
The role of DNA methylation has not been enough explored in pathophysiology of diabetic nephropathy (DN). However, according to recent reports it has been inferred that hypermethylation could be one of the principle cause associated with the enhancement of DN. An interrelationship between miR29b and DNA methylation has been studied via in-silico analysis. We have validated that miR29b prominently targets DNA methyl transferase (DNMT), specifically DNMT1, DNMT3A and DNMT3B. We have developed in vitro DN model using renal proximal tubule epithelial cells (RPTECs), contributed to a significant alleviation in RNA and protein expression levels of DNMT3A, DNMT3B and DNMT1. The developed model has also demonstrated downregulation in expression of miR29b. Our studies have also suggested that miR29b targets DNMT1 via targeting its transcription factor SP1. In addition to this, downregulation of a specific biomarker for kidney injury, tubular kidney injury molecule-1 (KIM-1) and fibrosis causing glycoprotein i.e. fibronectin, was also demonstrated. Hence, the developed model revealed that hypermethylation is a key factor incorporated in DN, and miR29b could effectively ameliorate defensive actions in DN pathogenesis.
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Affiliation(s)
- Piyush Gondaliya
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research- Ahmedabad
| | - Aishwarya Dasare
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research- Ahmedabad
| | - Akshay Srivastava
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research- Ahmedabad
| | - Kiran Kalia
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research- Ahmedabad
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Singh M, Tong Y, Webster K, Cesewski E, Haring AP, Laheri S, Carswell B, O'Brien TJ, Aardema CH, Senger RS, Robertson JL, Johnson BN. 3D printed conformal microfluidics for isolation and profiling of biomarkers from whole organs. Lab Chip 2017. [PMID: 28632265 DOI: 10.1039/c7lc00468k] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The ability to interface microfluidic devices with native complex biological architectures, such as whole organs, has the potential to shift the paradigm for the study and analysis of biological tissue. Here, we show 3D printing can be used to fabricate bio-inspired conformal microfluidic devices that directly interface with the surface of whole organs. Structured-light scanning techniques enabled the 3D topographical matching of microfluidic device geometry to porcine kidney anatomy. Our studies show molecular species are spontaneously transferred from the organ cortex to the conformal microfluidic device in the presence of fluid flow through the organ-conforming microchannel. Large animal studies using porcine kidneys (n = 32 organs) revealed the profile of molecular species in the organ-conforming microfluidic stream was dependent on the organ preservation conditions. Enzyme-linked immunosorbent assay (ELISA) studies revealed conformal microfluidic devices isolate clinically relevant metabolic and pathophysiological biomarkers from whole organs, including heat shock protein 70 (HSP-70) and kidney injury molecule-1 (KIM-1), which were detected in the microfluidic device as high as 409 and 12 pg mL-1, respectively. Overall, these results show conformal microfluidic devices enable a novel minimally invasive 'microfluidic biopsy' technique for isolation and profiling of biomarkers from whole organs within a clinically relevant interval. This achievement could shift the paradigm for whole organ preservation and assessment, thereby helping to relieve the organ shortage crisis through increased availability and quality of donor organs. Ultimately, this work provides a major advance in microfluidics through the design and manufacturing of organ-conforming microfluidic devices and a novel technique for microfluidic-based analysis of whole organs.
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Affiliation(s)
- Manjot Singh
- Department of Industrial and Systems Engineering, Virginia Tech, Blacksburg, VA 24061 USA.
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10
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Zwiers AJM, de Wildt SN, de Rijke YB, Willemsen SP, Abdullahi NS, Tibboel D, Cransberg K. Reference intervals for renal injury biomarkers neutrophil gelatinase-associated lipocalin and kidney injury molecule-1 in young infants. Clin Chem Lab Med 2016; 53:1279-89. [PMID: 25720126 DOI: 10.1515/cclm-2014-1020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 12/19/2014] [Indexed: 11/15/2022]
Abstract
BACKGROUND Reliable reference intervals for two novel urinary biomarkers of renal injury, neutrophil gelatinase-associated lipocalin (uNGAL) and kidney injury molecule-1 (uKIM-1) are lacking for infants. Therefore, the aim of our study was to establish reference intervals for urinary NGAL and KIM-1 absolute concentrations as well as normalized to urinary creatinine in young infants categorized in small age intervals. METHODS From June 2010 to March 2014, serum and urine samples of 106 basically healthy infants (born between 37 and 42 weeks of gestation) aged 1 day to 1 year were collected. Blood samples were assayed for serum creatinine levels to confirm a healthy renal status. Urine samples were assayed for creatinine, uNGAL (ng/mL) and uKIM-1 (ng/mL). RESULTS Two thirds of the study cohort were boys. uNGAL concentrations declined with increasing age (likelihood ratio test, p=0.001). Also, uNGAL concentrations were higher in girls (50th centile uNGAL was 27.1 ng/mL) than boys (50th centile uNGAL was 14.3 ng/mL) (two tailed Wald test, p<0.001) NGAL concentrations were not related to ethnicity. uKIM-1 concentrations were extremely low in almost all 106 subjects [median uKIM-1 was 0.08 (IQR 0.08-0.08) ng/mL] and not related with age, gender or ethnicity (all p>0.05). CONCLUSIONS Our data uniquely provide uNGAL and uKIM-1 reference intervals for the first year of life. Notably, only uNGAL levels decreased with increasing age and were higher in girls. These reference intervals enable future studies to evaluate the performance of both biomarkers in detecting early kidney tubular injury, particularly in the setting of critical care.
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11
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Foks AC, Engelbertsen D, Kuperwaser F, Alberts-Grill N, Gonen A, Witztum JL, Lederer J, Jarolim P, DeKruyff RH, Freeman GJ, Lichtman AH. Blockade of Tim-1 and Tim-4 Enhances Atherosclerosis in Low-Density Lipoprotein Receptor-Deficient Mice. Arterioscler Thromb Vasc Biol 2016; 36:456-65. [PMID: 26821944 PMCID: PMC4853762 DOI: 10.1161/atvbaha.115.306860] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Accepted: 01/14/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE T cell immunoglobulin and mucin domain (Tim) proteins are expressed by numerous immune cells, recognize phosphatidylserine on apoptotic cells, and function as costimulators or coinhibitors. Tim-1 is expressed by activated T cells but is also found on dendritic cells and B cells. Tim-4, present on macrophages and dendritic cells, plays a critical role in apoptotic cell clearance, regulates the number of phosphatidylserine-expressing activated T cells, and is genetically associated with low low-density lipoprotein and triglyceride levels. Because these functions of Tim-1 and Tim-4 could affect atherosclerosis, their modulation has potential therapeutic value in cardiovascular disease. APPROACH AND RESULTS ldlr(-/-) mice were fed a high-fat diet for 4 weeks while being treated with control (rat immunoglobulin G1) or anti-Tim-1 (3D10) or -Tim-4 (21H12) monoclonal antibodies that block phosphatidylserine recognition and phagocytosis. Both anti-Tim-1 and anti-Tim-4 treatments enhanced atherosclerosis by 45% compared with controls by impairment of efferocytosis and increasing aortic CD4(+)T cells. Consistently, anti-Tim-4-treated mice showed increased percentages of activated T cells and late apoptotic cells in the circulation. Moreover, in vitro blockade of Tim-4 inhibited efferocytosis of oxidized low-density lipoprotein-induced apoptotic macrophages. Although anti-Tim-4 treatment increased T helper cell (Th)1 and Th2 responses, anti-Tim-1 induced Th2 responses but dramatically reduced the percentage of regulatory T cells. Finally, combined blockade of Tim-1 and Tim-4 increased atherosclerotic lesion size by 59%. CONCLUSIONS Blockade of Tim-4 aggravates atherosclerosis likely by prevention of phagocytosis of phosphatidylserine-expressing apoptotic cells and activated T cells by Tim-4-expressing cells, whereas Tim-1-associated effects on atherosclerosis are related to changes in Th1/Th2 balance and reduced circulating regulatory T cells.
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MESH Headings
- Animals
- Antibodies, Monoclonal/toxicity
- Aortic Diseases/chemically induced
- Aortic Diseases/genetics
- Aortic Diseases/immunology
- Aortic Diseases/metabolism
- Aortic Diseases/pathology
- Apoptosis/drug effects
- Atherosclerosis/chemically induced
- Atherosclerosis/genetics
- Atherosclerosis/immunology
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- CD4-Positive T-Lymphocytes/drug effects
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/pathology
- Cell Proliferation/drug effects
- Cells, Cultured
- Coculture Techniques
- Diet, High-Fat
- Disease Models, Animal
- Female
- Hepatitis A Virus Cellular Receptor 1
- Lipoproteins, LDL/metabolism
- Lymphocyte Activation/drug effects
- Macrophages/drug effects
- Macrophages/immunology
- Macrophages/pathology
- Male
- Membrane Proteins/antagonists & inhibitors
- Membrane Proteins/immunology
- Membrane Proteins/metabolism
- Mice, Knockout
- Phagocytosis/drug effects
- Plaque, Atherosclerotic
- Receptors, LDL/deficiency
- Receptors, LDL/genetics
- Signal Transduction/drug effects
- T-Lymphocytes, Regulatory/drug effects
- T-Lymphocytes, Regulatory/immunology
- Th1 Cells/drug effects
- Th1 Cells/immunology
- Th2 Cells/drug effects
- Th2 Cells/immunology
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Affiliation(s)
- Amanda C Foks
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - Daniel Engelbertsen
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - Felicia Kuperwaser
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - Noah Alberts-Grill
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - Ayelet Gonen
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - Joseph L Witztum
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - James Lederer
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - Petr Jarolim
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - Rosemarie H DeKruyff
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - Gordon J Freeman
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.)
| | - Andrew H Lichtman
- From the Department of Pathology (A.C.F., D.E., F.K., N.A.-G., P.J., A.H.L.) and Department of Surgery (J.L.), Harvard Medical School, Brigham and Women's Hospital, Boston, MA; Department of Medicine, University of California, San Diego, La Jolla (A.G., J.L.W.); Department of Medicine, Stanford University, Stanford, CA (R.H.D.); and Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA (G.J.F.).
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12
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Koo TY, Jeong JC, Lee Y, Ko KP, Lee KB, Lee S, Park SJ, Park JB, Han M, Lim HJ, Ahn C, Yang J. Pre-transplant Evaluation of Donor Urinary Biomarkers can Predict Reduced Graft Function After Deceased Donor Kidney Transplantation. Medicine (Baltimore) 2016; 95:e3076. [PMID: 26986138 PMCID: PMC4839919 DOI: 10.1097/md.0000000000003076] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Several recipient biomarkers are reported to predict graft dysfunction, but these are not useful in decision making for the acceptance or allocation of deceased donor kidneys; thus, it is necessary to develop donor biomarkers predictive of graft dysfunction. To address this issue, we prospectively enrolled 94 deceased donors and their 109 recipients who underwent transplantation between 2010 and 2013 at 4 Korean transplantation centers. We investigated the predictive values of donor urinary neutrophil gelatinase-associated lipocalin (NGAL), kidney injury molecule-1 (KIM-1), and L-type fatty acid binding protein (L-FABP) for reduced graft function (RGF). We also developed a prediction model of RGF using these donor biomarkers. RGF was defined as delayed or slow graft function. Multiple logistic regression analysis was used to generate a prediction model, which was internally validated using a bootstrapping method. Multiple linear regression analysis was used to assess the association of biomarkers with 1-year graft function. Notably, donor urinary NGAL levels were associated with donor AKI (P = 0.014), and donor urinary NGAL and L-FABP were predictive for RGF, with area under the receiver-operating characteristic curves (AUROC) of 0.758 and 0.704 for NGAL and L-FABP, respectively. The best-fit model including donor urinary NGAL, L-FABP, and serum creatinine conveyed a better predictive value for RGF than donor serum creatinine alone (P = 0.02). In addition, we generated a scoring method to predict RGF based on donor urinary NGAL, L-FABP, and serum creatinine levels. Diagnostic performance of the RGF prediction score (AUROC 0.808) was significantly better than that of the DGF calculator (AUROC 0.627) and the kidney donor profile index (AUROC 0.606). Donor urinary L-FABP levels were also predictive of 1-year graft function (P = 0.005). Collectively, these findings suggest donor urinary NGAL and L-FABP to be useful biomarkers for RGF, and support the use of a new scoring system based on donor biomarkers to facilitate decision-making in acceptance and allocation of deceased donor kidneys and contribute to maximal organ utilization.
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Affiliation(s)
- Tai Yeon Koo
- From the Transplantation Center, Seoul National University Hospital, Seoul (TYK, HJL, CA, JY); Department of Pathology, Seoul National University Hospital, Seoul (K-BL); Department of Nephrology, Ajou University School of Medicine, Suwon (JCJ); Department of Cardiology, Sungae Hospital, Seoul (YL); Department of Preventive Medicine, Gachon University of Medicine and Science, Incheon (K-PK); Department of Nephrology, Chonbuk National University Hospital, Jeollabuk-do (SL); Department of Nephrology, Inje University Busan Paik Hospital, Busan (SJP); Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine (JBP); and Department of Internal Medicine (MH, CA), Seoul National University College of Medicine, Seoul, Republic of Korea
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13
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Mossoba ME, Flynn TJ, Vohra S, Wiesenfeld PL, Sprando RL. Human kidney proximal tubule cells are vulnerable to the effects of Rauwolfia serpentina. Cell Biol Toxicol 2016; 31:285-93. [PMID: 26838987 DOI: 10.1007/s10565-016-9311-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 01/15/2016] [Indexed: 11/25/2022]
Abstract
Rauwolfia serpentina (or Snake root plant) is a botanical dietary supplement marketed in the USA for maintaining blood pressure. Very few studies have addressed the safety of this herb, despite its wide availability to consumers. Its reported pleiotropic effects underscore the necessity for evaluating its safety. We used a human kidney cell line to investigate the possible negative effects of R. serpentina on the renal system in vitro, with a specific focus on the renal proximal tubules. We evaluated cellular and mitochondrial toxicity, along with a variety of other kidney-specific toxicology biomarkers. We found that R. serpentina was capable of producing highly detrimental effects in our in vitro renal cell system. These results suggest more studies are needed to investigate the safety of this dietary supplement in both kidney and other target organ systems.
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Affiliation(s)
- Miriam E Mossoba
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA.
- MOD-1 Laboratories, US FDA, 8301 Muirkirk Rd., HFS-025, Lab 1406, Laurel, MD, 20708, USA.
| | - Thomas J Flynn
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA
| | - Sanah Vohra
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA
| | - Paddy L Wiesenfeld
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA
| | - Robert L Sprando
- Center for Food Safety and Applied Nutrition (CFSAN), Office of Applied Research and Safety Assessment (OARSA), Division of Toxicology (DOT), Neurotoxicology and in vitro Toxicology Branch (NIVTB), U.S. Food and Drug Administration (US FDA), 8301 Muirkirk Rd., Laurel, MD, 20708, USA
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14
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Oppert M. Timing of renal replacement therapy in acute kidney injury. MINERVA UROL NEFROL 2016; 68:72-77. [PMID: 26583593] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Acute kidney injury (AKI) is a frequent finding in patients with critical illness. In many of these patients renal replacement therapy (RRT) is needed to support organ dysfunction. Although international guidelines on the management of AKI have been developed and are widely accepted, there is still considerable controversy on the optimal timing of RRT. The clinician is in a constant dilemma that level of evidence (on timing of acute RRT) is low and the issue is of high importance. Despite this paucity of high quality prospective data, this review will give the reader an idea on how to approach the difficult question of initiating RRT. Obviously, no general recommendation can be given covering every aspect of intensive care medicine. Therefore, general thoughts are displayed, followed by a focus on specific clinical situations. The role of "novel" biomarkers in the process of deciding when to start is also discussed.
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Affiliation(s)
- Michael Oppert
- Department of Emergency and Intensive Care Medicine, Klinikum Ernst von Bergmann, Potsdam, Germany -
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15
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Ucakturk A, Avci B, Genc G, Ozkaya O, Aydin M. Kidney injury molecule-1 and neutrophil gelatinase associated lipocalin in normoalbuminuric diabetic children. J Pediatr Endocrinol Metab 2016; 29:145-51. [PMID: 26393328 DOI: 10.1515/jpem-2015-0138] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 08/18/2015] [Indexed: 11/15/2022]
Abstract
BACKGROUND We aimed at evaluating the urinary levels of kidney injury molecule-1 ( KIM-1) and neutrophil gelatinase associated lipocalin (NGAL), and the relationship between these markers and clinical and laboratory variables in normoalbuminuric children with type 1 diabetes (T1D). METHODS The study group consisted of 60 (F/M: 28/32) children with T1D with a median age of 13 (min: 7.1-max: 17.9) years and a mean HbA1c of 8.6%. The average period of treatment was 6.8±2.2 years. The control group consisted of 60 healthy children [(F/M: 32/28); median age: 13.6 (min: 6.9-max: 17.9) years]. RESULTS Urinary KIM-1 and NGAL levels were significantly elevated in the diabetic group (KIM-1: 0.50±0.34 ng/mg-cr; NGAL: 33±31 ng/mg-cr) compared with the nondiabetic control subjects (KIM-1: 0.26±0.25 ng/mg-cr, NGAL 13.3±14.5 ng/mg-cr) (p<0.001). No significant associations were observed between NGAL or KIM-1 and the duration of diabetes and HbA1c levels. NGAL was found to be weakly correlated with KIM-1 (p<0.005, r=0.289). CONCLUSIONS NGAL and KIM are high in normoalbuminuric diabetic children before reduction in glomerular filtration rate. High NGAL and KIM-1 levels may indicate early diabetic kidney injury; however, we did not observe any relationship between these markers and diabetic indices. For clinical usefulness of these markers, long-term studies are required.
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16
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Chaykovska L, Heunisch F, von Einem G, Alter ML, Hocher CF, Tsuprykov O, Dschietzig T, Kretschmer A, Hocher B. Urinary Vitamin D Binding Protein and KIM-1 Are Potent New Biomarkers of Major Adverse Renal Events in Patients Undergoing Coronary Angiography. PLoS One 2016; 11:e0145723. [PMID: 26751954 PMCID: PMC4709188 DOI: 10.1371/journal.pone.0145723] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 12/08/2015] [Indexed: 12/31/2022] Open
Abstract
Background Vitamin-D-binding protein (VDBP) is a low molecular weight protein that is filtered through the glomerulus as a 25-(OH) vitamin D 3/VDBP complex. In the normal kidney VDBP is reabsorbed and catabolized by proximal tubule epithelial cells reducing the urinary excretion to trace amounts. Acute tubular injury is expected to result in urinary VDBP loss. The purpose of our study was to explore the potential role of urinary VDBP as a biomarker of an acute renal damage. Method We included 314 patients with diabetes mellitus or mild renal impairment undergoing coronary angiography and collected blood and urine before and 24 hours after the CM application. Patients were followed for 90 days for the composite endpoint major adverse renal events (MARE: need for dialysis, doubling of serum creatinine after 90 days, unplanned emergency rehospitalization or death). Results Increased urine VDBP concentration 24 hours after contrast media exposure was predictive for dialysis need (no dialysis: 113.06 ± 299.61ng/ml, n = 303; need for dialysis: 613.07 ± 700.45 ng/ml, n = 11, Mean ± SD, p<0.001), death (no death during follow-up: 121.41 ± 324.45 ng/ml, n = 306; death during follow-up: 522.01 ± 521.86 ng/ml, n = 8; Mean ± SD, p<0.003) and MARE (no MARE: 112.08 ± 302.00ng/ml, n = 298; MARE: 506.16 ± 624.61 ng/ml, n = 16, Mean ± SD, p<0.001) during the follow-up of 90 days after contrast media exposure. Correction of urine VDBP concentrations for creatinine excretion confirmed its predictive value and was consistent with increased levels of urinary Kidney Injury Molecule-1 (KIM-1) and baseline plasma creatinine in patients with above mentioned complications. The impact of urinary VDBP and KIM-1 on MARE was independent of known CIN risk factors such as anemia, preexisting renal failure, preexisting heart failure, and diabetes. Conclusions Urinary VDBP is a promising novel biomarker of major contrast induced nephropathy-associated events 90 days after contrast media exposure.
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Affiliation(s)
- Lyubov Chaykovska
- Center for Cardiovascular Research, Charité Universitaetsmedizin Berlin, Berlin, Germany
- Department of Vascular Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Fabian Heunisch
- Center for Cardiovascular Research, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Gina von Einem
- Center for Cardiovascular Research, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Markus L. Alter
- Center for Cardiovascular Research, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Carl-Friedrich Hocher
- Center for Cardiovascular Research, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Oleg Tsuprykov
- Center for Cardiovascular Research, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Thomas Dschietzig
- Immundiagnostik AG, Bensheim, Germany
- Department of Cardiology and Angiology, Charité Universitaetsmedizin Berlin, Berlin, Germany
| | | | - Berthold Hocher
- Institute for Nutritional Science, University of Potsdam, Potsdam, Germany
- IFLb Laboratoriumsmedizin Berlin GmbH, Berlin, Germany
- * E-mail:
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17
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Cao XY, Zhang HR, Zhang W, Chen B. [Diagnostic values of urinary netrin-1 and kidney injury molecule-1 for acute kidney injury induced by neonatal asphyxia]. Zhongguo Dang Dai Er Ke Za Zhi 2016; 18:24-28. [PMID: 26781408 PMCID: PMC7390090 DOI: 10.7499/j.issn.1008-8830.2016.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 11/24/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the values of urinary netrin-1 and kidney injury molecule-1 (KIM-1) in the early diagnosis of acute kidney injury (AKI) induced by neonatal asphyxia. METHODS A total of 80 full-term neonates with asphyxia were enrolled (mild asphyxia: 34 neonates; severe asphyxia: 46 neonates). Forty normal full-term neonates were selected as the control group. Urinary samples were collected from the neonates in the three groups within 12 hours and 13-48 hours after birth. ELISA was applied to measure urinary levels of netrin-1 and KIM-1. Peripheral venous blood samples were also collected to measure serum creatinine (Scr) level. RESULTS Compared with the control group, the asphyxia group had significantly higher urinary levels of netrin-1 and KIM-1 within 48 hours after birth and a significantly higher Scr level within 13-48 hours after birth (P<0.05). The neonates in the AKI group had significantly higher urinary levels of netrin-1 and KIM-1 and Scr level within 48 hours after birth than those in the non-AKI group (P<0.05). The areas under the receiver operating characteristic curve for urinary netrin-1 and KIM-1 levels within 12 hours after birth to predict AKI after asphyxia were 0.878 (95% CI: 0.775-0.981; P<0.01) and 0.899 (95% CI: 0.829-0.969; P<0.01), respectively. Any two indicators of urinary netrin-1 level, urinary KIM-1 level, and Scr level within 12 hours after neonatal asphyxia had a positive correlation (P<0.05). CONCLUSIONS Urinary netrin-1 and KIM-1 levels increase significantly when neonates with asphyxia develop AKI. Urinary netrin-1 and KIM-1 can be used as indicators for the early diagnosis of AKI after asphyxia.
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Affiliation(s)
- Xiao-Yan Cao
- Department of Pediatrics, First Affiliated Hospital of the Medical College, Shihezi University, Shihezi, Xinjiang 832000, China.
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18
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Dobrek Ł, Thor PJ. [Selected proteins as biomarkers of kidney injury used in the nephrological diagnosis]. Postepy Biochem 2016; 62:482-494. [PMID: 28132450] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 09/15/2016] [Indexed: 06/06/2023]
Abstract
Acute kidney injury (AKI) is an important clinical entity, developing in hospitalized patients due to rapid deterioration of the kidney function, while chronic, progressive glomerulopathies, tubulointerstitial damage, recurrent pyelonephritis, long-lasting nephrolithiasis or systemic diseases affecting kidneys (hypertension, diabetes), result in chronic kidney disease (CKD) development. Early AKI detection enables the implementation of appropriate therapy, which in some cases prevents the irreversible complications, leading to patient's death. Similarly, the correct biochemical assessment allows for monitoring CKD course, which reduces the risk of chronic complications and the development of symptomatic, chronic kidney failure. Therefore, novel laboratory parameters are still sought, endowed with the high sensitivity and specificity, which allow for the reliable AKI diagnosis or estimation of the CKD advancement. The paper focuses on discussing the role of the four proteins: cystatin C, neutrophil gelatinase-associated lipocalin-1 (NGAL), kidney injury molecule-1 (KIM-1) and αKlotho as novel biomarkers in AKI/CKD diagnosis.
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Affiliation(s)
- Łukasz Dobrek
- Department of Pathophysiology, Jagiellonian University Medical College, 18 Czysta Str., 31-121 Kraków, Poland
| | - Piotr J Thor
- Department of Pathophysiology, Jagiellonian University Medical College, 18 Czysta Str., 31-121 Kraków, Poland
- Department of Human Physiology, Faculty of Medicine, University of Rzeszów, 2a Kopisto Str., 35-310 Rzeszów, Poland
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19
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Yuan H, Yao YS, Chen GM, Sheng J, Xu L, Pan HF. Decreased serum levels of T-cell immunoglobulin mucin-1 and T-cell immunoglobulin mucin-3 in systemic lupus erythematosus patients. J BIOL REG HOMEOS AG 2016; 30:123-129. [PMID: 27049082] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study aims to investigate the serum T-cell immunoglobulin mucin (TIM)-1 and TIM-3 levels in systemic lupus erythematosus (SLE) patients and analyze their correlations with clinical features. Sixtyone SLE patients and 69 healthy controls were enrolled, serum TIM-1 and TIM-3 levels were detected by ELISA. Results demonstrated that both serum TIM-1 and TIM-3 levels were significantly decreased in SLE patients compared with controls (both P less than 0.05). Lower serum TIM-3 levels in SLE patients with nephritis were observed when compared to those without nephritis, with a marginal statistical significance (P=0.059). However, both serum TIM-1 and TIM-3 levels had no significant correlation with SLE disease activity (both >0.05). In summary, decreased serum TIM-1 and TIM-3 levels and association of TIM-3 with nephritis suggest their possible role in the development and pathogenesis of SLE. However, further studies are needed to confirm these preliminary results.
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Affiliation(s)
- H Yuan
- Department of Preventive Medicine, Wannan Medical College, Wuhu, Anhui, China
| | - Y S Yao
- Department of Preventive Medicine, Wannan Medical College, Wuhu, Anhui, China
| | - G M Chen
- School of Health Management, Anhui Medical University, Hefei, Anhui, China
| | - J Sheng
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui China
| | - L Xu
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Wannan Medical College, Wuhu, Anhui China
| | - H F Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
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Cao XY, Zhang HR, Zhang W, Chen B. [Diagnostic values of urinary netrin-1 and kidney injury molecule-1 for acute kidney injury induced by neonatal asphyxia]. Zhongguo Dang Dai Er Ke Za Zhi 2016; 18:24-8. [PMID: 26781408 PMCID: PMC7390090] [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] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 11/24/2015] [Indexed: 11/12/2023]
Abstract
OBJECTIVE To investigate the values of urinary netrin-1 and kidney injury molecule-1 (KIM-1) in the early diagnosis of acute kidney injury (AKI) induced by neonatal asphyxia. METHODS A total of 80 full-term neonates with asphyxia were enrolled (mild asphyxia: 34 neonates; severe asphyxia: 46 neonates). Forty normal full-term neonates were selected as the control group. Urinary samples were collected from the neonates in the three groups within 12 hours and 13-48 hours after birth. ELISA was applied to measure urinary levels of netrin-1 and KIM-1. Peripheral venous blood samples were also collected to measure serum creatinine (Scr) level. RESULTS Compared with the control group, the asphyxia group had significantly higher urinary levels of netrin-1 and KIM-1 within 48 hours after birth and a significantly higher Scr level within 13-48 hours after birth (P<0.05). The neonates in the AKI group had significantly higher urinary levels of netrin-1 and KIM-1 and Scr level within 48 hours after birth than those in the non-AKI group (P<0.05). The areas under the receiver operating characteristic curve for urinary netrin-1 and KIM-1 levels within 12 hours after birth to predict AKI after asphyxia were 0.878 (95% CI: 0.775-0.981; P<0.01) and 0.899 (95% CI: 0.829-0.969; P<0.01), respectively. Any two indicators of urinary netrin-1 level, urinary KIM-1 level, and Scr level within 12 hours after neonatal asphyxia had a positive correlation (P<0.05). CONCLUSIONS Urinary netrin-1 and KIM-1 levels increase significantly when neonates with asphyxia develop AKI. Urinary netrin-1 and KIM-1 can be used as indicators for the early diagnosis of AKI after asphyxia.
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Affiliation(s)
- Xiao-Yan Cao
- Department of Pediatrics, First Affiliated Hospital of the Medical College, Shihezi University, Shihezi, Xinjiang 832000, China.
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21
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Güneş A, Ece A, Aktar F, Tan İ, Söker M, Karabel D, Balık H, Uluca Ü, Şen V, Yolbaş İ. Urinary Kidney Injury Molecules in Children with Iron-Deficiency Anemia. Med Sci Monit 2015; 21:4023-9. [PMID: 26697893 PMCID: PMC4694706 DOI: 10.12659/msm.896794] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 12/08/2015] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND The aim of this study was to investigate the urine levels of human kidney injury molecule-1 (KIM-1), neutrophil gelatinase-associated lipocalin (NGAL), N-acetyl-β-D-glucosaminidase (NAG), and liver-type fatty acid-binding protein (L-FABP) in children with iron-deficiency anemia (IDA). MATERIAL AND METHODS Thirty-five children with IDA and 32 matched healthy controls were recruited. We assessed complete blood count, serum iron, iron-binding capacity, ferritin, serum levels of urea, creatinine (Cr), sodium (Na), potassium (K), calcium (Ca), and glucose levels. Estimated glomerular filtration rate (eGFR) was calculated. Urinary NAG, NGAL, KIM-1, and L-FABP were measured and divided by urine creatinine for comparisons. RESULTS There were no significant differences in serum urea, Cr, or eGFR between the IDA group and the control group (p>0.05, for all). IDA patients had significantly higher urine NGAL/Cr, L-FABP/Cr, KIM-1/Cr, and NAG/Cr compared with the control group (p<0.05). There were significant negative correlations between hemoglobin, hematocrit, red blood cell count, and urine NGAL/Cr, NAG/Cr, L-FABP/Cr, KIM-1/Cr levels (p<0.05). CONCLUSIONS Higher urinary kidney injury molecule levels in IDA patients suggest a possible subclinical renal injury in pediatric IDA patients whose renal functions and serum electrolytes were normal.
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Affiliation(s)
- Ali Güneş
- Department of Pediatrics, Medical School, Dicle University, Diyarbakir, Turkey
| | - Aydın Ece
- Department of Pediatric Nephrology, Medical School, Dicle University, Diyarbakir, Turkey
| | - Fesih Aktar
- Department of Pediatrics, Medical School, Dicle University, Diyarbakir, Turkey
| | - İlhan Tan
- Department of Pediatrics, Medical School, Dicle University, Diyarbakir, Turkey
| | - Murat Söker
- Department of Pediatric Hematology, Medical School, Dicle University, Diyarbakir, Turkey
| | - Duran Karabel
- Department of Pediatrics, Medical School, Dicle University, Diyarbakir, Turkey
| | - Hasan Balık
- Department of Pediatrics, Medical School, Dicle University, Diyarbakir, Turkey
| | - Ünal Uluca
- Department of Pediatrics, Medical School, Dicle University, Diyarbakir, Turkey
| | - Velat Şen
- Department of Pediatrics, Medical School, Dicle University, Diyarbakir, Turkey
| | - İlyas Yolbaş
- Department of Pediatrics, Medical School, Dicle University, Diyarbakir, Turkey
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De Carvalho JAM, Tatsch E, Hausen BS, Bollick YS, Torbitz VD, Guarda NS, De Campos LP, Duarte T, Duarte MMMF, Londero SWK, Comim FV, Moresco RN. Evaluation of the diagnostic characteristics of urinary kidney injury molecule 1 (uKIM-1) and uKIM-1/creatinine ratio in the assessment of incipient diabetic kidney disease. Clin Chem Lab Med 2015; 53:e51-4. [PMID: 25153602 DOI: 10.1515/cclm-2014-0655] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 07/24/2014] [Indexed: 11/15/2022]
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23
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Zhang YR, Wang P, Liang XX, Tan CS, Tan JB, Wang J, Huang Q, Huang R, Li ZX, Chen WC, Wu SX, Ong CN, Yang XF, Wu YN. Associations between Urinary Excretion of Cadmium and Renal Biomarkers in Nonsmoking Females: A Cross-Sectional Study in Rural Areas of South China. Int J Environ Res Public Health 2015; 12:11988-2001. [PMID: 26404328 PMCID: PMC4626950 DOI: 10.3390/ijerph121011988] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 08/19/2015] [Accepted: 09/01/2015] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The aim of this study was to systematically evaluate the relationship between urinary excretion of cadmium (U-Cd) and biomarkers of renal dysfunction. METHODS One hundred eighty five non-smoking female farmers (aged from 44 to 71 years) were recruited from two rural areas with different cadmium levels of exposure in southern China. Morning spot urine samples were collected for detecting U-Cd, urinary creatinine (U-cre), β₂-microglobulin (β₂-MG), α₁-microglobulin (α₁-MG), metallothionein (MT), retinol binding protein (RBP), albumin (AB), N-acetyl-β-D-glucosaminidase (NAG), alkaline phosphatase (ALP), γ-glutamyl transpeptidase (GGT) and kidney injury molecule-1 (KIM-1). Spearman's rank correlation was carried out to assess pairwise bivariate associations between continuous variables. Three different models of multiple linear regression (the cre-corrected, un-corrected and cre-adjusted model) were used to model the dose-response relationships between U-Cd and nine urine markers. RESULTS Spearman's rank correlation showed that NAG, ALP, RBP, β₂-MG and MT were significantly associated with U-Cd for both cre-corrected and observed data. Generally, NAG correlated best with U-Cd among the nine biomarkers studied, followed by ALP and MT. In the un-corrected model and cre-adjusted model, the regression coefficients and R² of nine biomarkers were larger than the corresponding values in the cre-corrected model, indicating that the use of observed data was better for investigating the relationship between biomarkers and U-Cd than cre-corrected data. CONCLUSIONS Our results suggest that NAG, MT and ALP in urine were better biomarkers for long-term environmental cadmium exposure assessment among the nine biomarkers studied. Further, data without normalization with creatinine show better relationships between cadmium exposure and renal dysfunction.
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Affiliation(s)
- Yun-rui Zhang
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
- Department of Occupational and Environmental Health, Medical School, Ji'Nan University, Guangzhou 510632, China.
| | - Ping Wang
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
- Guangdong Provincial Institute of Public Health, Guangzhou 511430, China.
| | - Xu-xia Liang
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
| | - Chuen Seng Tan
- Saw Swee Hock School of Public Health, National University of Singapore, 119077, Singapore.
| | - Jian-bin Tan
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
| | - Jing Wang
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
| | - Qiong Huang
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
| | - Rui Huang
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
- Guangdong Provincial Institute of Public Health, Guangzhou 511430, China.
| | - Zhi-xue Li
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
- Department of Occupational and Environmental Health, Medical School, Ji'Nan University, Guangzhou 510632, China.
| | - Wen-cai Chen
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
| | - Shi-xuan Wu
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
| | - Choon Nam Ong
- National University of Singapore Environmental Research Institute (NERI), 117597 Singapore.
| | - Xing-fen Yang
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou 511430, China.
| | - Yong-ning Wu
- Key Laboratory of Food Safety Risk Assessment of Ministry of Health, China National Center for Food Safety Risk Assessment, Beijing 100022, China.
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Hamel R, Dejarnac O, Wichit S, Ekchariyawat P, Neyret A, Luplertlop N, Perera-Lecoin M, Surasombatpattana P, Talignani L, Thomas F, Cao-Lormeau VM, Choumet V, Briant L, Desprès P, Amara A, Yssel H, Missé D. Biology of Zika Virus Infection in Human Skin Cells. J Virol 2015; 89:8880-96. [PMID: 26085147 PMCID: PMC4524089 DOI: 10.1128/jvi.00354-15] [Citation(s) in RCA: 828] [Impact Index Per Article: 92.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/08/2015] [Indexed: 12/22/2022] Open
Abstract
UNLABELLED Zika virus (ZIKV) is an emerging arbovirus of the Flaviviridae family, which includes dengue, West Nile, yellow fever, and Japanese encephalitis viruses, that causes a mosquito-borne disease transmitted by the Aedes genus, with recent outbreaks in the South Pacific. Here we examine the importance of human skin in the entry of ZIKV and its contribution to the induction of antiviral immune responses. We show that human dermal fibroblasts, epidermal keratinocytes, and immature dendritic cells are permissive to the most recent ZIKV isolate, responsible for the epidemic in French Polynesia. Several entry and/or adhesion factors, including DC-SIGN, AXL, Tyro3, and, to a lesser extent, TIM-1, permitted ZIKV entry, with a major role for the TAM receptor AXL. The ZIKV permissiveness of human skin fibroblasts was confirmed by the use of a neutralizing antibody and specific RNA silencing. ZIKV induced the transcription of Toll-like receptor 3 (TLR3), RIG-I, and MDA5, as well as several interferon-stimulated genes, including OAS2, ISG15, and MX1, characterized by strongly enhanced beta interferon gene expression. ZIKV was found to be sensitive to the antiviral effects of both type I and type II interferons. Finally, infection of skin fibroblasts resulted in the formation of autophagosomes, whose presence was associated with enhanced viral replication, as shown by the use of Torin 1, a chemical inducer of autophagy, and the specific autophagy inhibitor 3-methyladenine. The results presented herein permit us to gain further insight into the biology of ZIKV and to devise strategies aiming to interfere with the pathology caused by this emerging flavivirus. IMPORTANCE Zika virus (ZIKV) is an arbovirus belonging to the Flaviviridae family. Vector-mediated transmission of ZIKV is initiated when a blood-feeding female Aedes mosquito injects the virus into the skin of its mammalian host, followed by infection of permissive cells via specific receptors. Indeed, skin immune cells, including dermal fibroblasts, epidermal keratinocytes, and immature dendritic cells, were all found to be permissive to ZIKV infection. The results also show a major role for the phosphatidylserine receptor AXL as a ZIKV entry receptor and for cellular autophagy in enhancing ZIKV replication in permissive cells. ZIKV replication leads to activation of an antiviral innate immune response and the production of type I interferons in infected cells. Taken together, these results provide the first general insights into the interaction between ZIKV and its mammalian host.
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MESH Headings
- Aedes/virology
- Animals
- Autophagy/immunology
- Cell Adhesion Molecules/genetics
- Cell Adhesion Molecules/metabolism
- Cells, Cultured
- Chlorocebus aethiops
- Cytokines/biosynthesis
- DEAD Box Protein 58
- DEAD-box RNA Helicases/genetics
- DEAD-box RNA Helicases/metabolism
- Dendritic Cells/immunology
- Dendritic Cells/virology
- Fibroblasts/virology
- Flaviviridae/immunology
- Flaviviridae/physiology
- Flaviviridae Infections/immunology
- Flaviviridae Infections/virology
- HEK293 Cells
- Hepatitis A Virus Cellular Receptor 1
- Humans
- Insect Vectors/virology
- Interferon-Induced Helicase, IFIH1
- Interferon-beta/biosynthesis
- Interferon-beta/immunology
- Keratinocytes/virology
- Lectins, C-Type/genetics
- Lectins, C-Type/metabolism
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/metabolism
- Myxovirus Resistance Proteins/biosynthesis
- Phagosomes/immunology
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/metabolism
- RNA Interference
- RNA, Small Interfering
- Receptor Protein-Tyrosine Kinases/genetics
- Receptor Protein-Tyrosine Kinases/metabolism
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Receptors, Immunologic
- Receptors, Virus/genetics
- Receptors, Virus/metabolism
- Skin/immunology
- Skin/virology
- Toll-Like Receptor 3/genetics
- Toll-Like Receptor 3/immunology
- Toll-Like Receptor 3/metabolism
- Toll-Like Receptor 7/immunology
- Ubiquitins/biosynthesis
- Vero Cells
- Virus Internalization
- Virus Replication
- Axl Receptor Tyrosine Kinase
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Affiliation(s)
- Rodolphe Hamel
- Laboratoire MIVEGEC, UMR 224 IRD/CNRS/UM, Montpellier, France
| | - Ophélie Dejarnac
- INSERM, U944, Laboratoire de Pathologie et Virologie Moléculaire, Paris, France
| | | | | | - Aymeric Neyret
- Centre d'Étude d'Agents Pathogènes et Biotechnologies pour la Santé, CNRS-UMR 5236/UM, Montpellier, France
| | - Natthanej Luplertlop
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | | | | | - Loïc Talignani
- Laboratoire MIVEGEC, UMR 224 IRD/CNRS/UM, Montpellier, France
| | - Frédéric Thomas
- Laboratoire MIVEGEC, UMR 224 IRD/CNRS/UM, Montpellier, France
| | | | - Valérie Choumet
- Environment and Infectious Risks Unit, Institut Pasteur, Paris, France
| | - Laurence Briant
- Centre d'Étude d'Agents Pathogènes et Biotechnologies pour la Santé, CNRS-UMR 5236/UM, Montpellier, France
| | - Philippe Desprès
- Département Infections et Epidémiologie, Institut Pasteur, Paris, France, and UMR PIMIT (I2T Team), Université de La Réunion, INSERM U1187, CNRS 9192, IRD 249, GIP-CYROI, Saint Clotilde, La Réunion, France
| | - Ali Amara
- INSERM, U944, Laboratoire de Pathologie et Virologie Moléculaire, Paris, France
| | - Hans Yssel
- Centre d'Immunologie et des Maladies Infectieuses, INSERM, U1135, Sorbonne Universités, UPMC, APHP Hôpital Pitié-Salpêtrière, Paris, France
| | - Dorothée Missé
- Laboratoire MIVEGEC, UMR 224 IRD/CNRS/UM, Montpellier, France
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Chung HJ, Pellegrini KL, Chung J, Wanigasuriya K, Jayawardene I, Lee K, Lee H, Vaidya VS, Weissleder R. Nanoparticle Detection of Urinary Markers for Point-of-Care Diagnosis of Kidney Injury. PLoS One 2015; 10:e0133417. [PMID: 26186708 PMCID: PMC4506142 DOI: 10.1371/journal.pone.0133417] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 06/26/2015] [Indexed: 11/27/2022] Open
Abstract
The high incidence of acute and chronic kidney injury due to various environmental factors such as heavy metals or chemicals has been a major problem in developing countries. However, the diagnosis of kidney injury in these areas can be more challenging due to the lack of highly sensitive and specific techniques that can be applied in point-of-care settings. To address this, we have developed a technique called ‘micro-urine nanoparticle detection (μUNPD)’, that allows the detection of trace amounts of molecular markers in urine. Specifically, this technique utilizes an automated on-chip assay followed by detection with a hand-held device for the read-out. Using the μUNPD technology, the kidney injury markers KIM-1 and Cystatin C were detected down to concentrations of 0.1 ng/ml and 20 ng/ml respectively, which meets the cut-off range required to identify patients with acute or chronic kidney injury. Thus, we show that the μUNPD technology enables point of care and non-invasive detection of kidney injury, and has potential for applications in diagnosing kidney injury with high sensitivity in resource-limited settings.
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Affiliation(s)
- Hyun Jung Chung
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, Massachusetts, United States of America
| | - Kathryn L. Pellegrini
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Jaehoon Chung
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, Massachusetts, United States of America
| | - Kamani Wanigasuriya
- Department of Medicine, Faculty of Medical Sciences, University of Sri Jayewardenepura, Nugegoda, Sri Lanka
| | - Innocent Jayawardene
- Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, and Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Kyungheon Lee
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, Massachusetts, United States of America
| | - Hakho Lee
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, Massachusetts, United States of America
| | - Vishal S. Vaidya
- Renal Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, Massachusetts, United States of America
- Department of Systems Biology, Harvard Medical School, 200 Longwood Ave, Boston, Massachusetts, United States of America
- * E-mail:
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Xiao N, Devarajan P, Inge TH, Jenkins TM, Bennett M, Mitsnefes MM. Subclinical kidney injury before and 1 year after bariatric surgery among adolescents with severe obesity. Obesity (Silver Spring) 2015; 23:1234-8. [PMID: 25959555 PMCID: PMC4446189 DOI: 10.1002/oby.21070] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 02/11/2015] [Indexed: 01/06/2023]
Abstract
OBJECTIVE To assess subclinical kidney injury in adolescents with severe obesity by measuring biomarkers of early kidney disease and to assess changes in the levels of these biomarkers following bariatric procedures. METHODS Twenty-two adolescents undergoing bariatric surgery with no microalbuminuria and normal kidney function were selected. Urinary NGAL, IL-18, and KIM-1 were measured at baseline, 6 and 12 months postoperatively. Biomarker levels were compared to 44 age-gender-matched lean controls. RESULTS Subjects with obesity had a mean baseline BMI of 48 kg/m(2) that decreased by 34% at 1-year follow-up. Urine NGAL, IL-18, and KIM-1 were significantly elevated in subjects with obesity compared to lean controls at baseline. The obese cohort had a further significant increase in NGAL and KIM-1 at 6 months, followed by decline at 1 year. The overall change in levels of all three biomarkers through 1 year after surgery, however, was not significant compared to baseline. CONCLUSIONS Adolescent severe obesity is associated with increased urinary excretion of novel biomarkers of kidney injury, despite no microalbuminuria or decreased kidney function. This subclinical kidney injury persists 1 year after significant weight loss induced by bariatric surgery, suggesting that close, long-term follow-up of kidney status is warranted in these adolescents.
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Affiliation(s)
- Nianzhou Xiao
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Prasad Devarajan
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Thomas H Inge
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Todd M Jenkins
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Michael Bennett
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Mark M Mitsnefes
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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Fu WJ, Deng RT, Huang ZH, Chen ML, Wang DJ, Jiang YM, Wen S, Yang HL, Huang XZ. Renal tubular markers in pregnant women with and without gestational diabetes mellitus: a pilot study. Endocrine 2015; 49:563-5. [PMID: 25539794 DOI: 10.1007/s12020-014-0511-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 12/10/2014] [Indexed: 10/24/2022]
Affiliation(s)
- Wen-Jin Fu
- Department of Laboratory, Affiliated Houjie Hospital, Guangdong Medical College, Guangzhou, 523945, China
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Jotwani V, Shlipak MG, Scherzer R, Parekh RS, Kao WHL, Bennett M, Cohen MH, Nowicki M, Sharma A, Young M, Tien PC, Parikh CR, Estrella MM. APOL1 Genotype and Glomerular and Tubular Kidney Injury in Women With HIV. Am J Kidney Dis 2015; 65:889-98. [PMID: 25921719 PMCID: PMC4615696 DOI: 10.1053/j.ajkd.2015.02.329] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 02/15/2015] [Indexed: 12/17/2022]
Abstract
BACKGROUND APOL1 genotype is associated with advanced kidney disease in African Americans, but the pathogenic mechanisms are unclear. Here, associations of APOL1 genotype with urine biomarkers of glomerular and tubular injury and kidney function decline were evaluated. STUDY DESIGN Observational study. SETTING & PARTICIPANTS 431 human immunodeficiency virus (HIV)-infected African American women enrolled in Women's Interagency HIV Study (WIHS). PREDICTOR APOL1 genotype. OUTCOMES Albumin-creatinine ratio (ACR), 4 tubular injury biomarkers (interleukin 18 [IL-18], kidney injury molecule 1 [KIM-1], neutrophil gelatinase-associated lipocalin [NGAL], and α1-microglobulin [A1M]), and kidney function estimated using the CKD-EPI cystatin C equation. MEASUREMENTS Participants were genotyped for APOL1 single-nucleotide polymorphisms rs73885319 (G1 allele) and rs71785313 (G2 allele). Urine biomarkers were measured using stored samples from 1999-2000. Cystatin C was measured using serum collected at baseline and 4- and 8-year follow-ups. RESULTS At baseline, ACRs were higher among 47 women with 2 APOL1 risk alleles versus 384 women with 0/1 risk allele (median, 24 vs 11mg/g; P<0.001). Compared with women with 0/1 risk allele, women with 2 risk alleles had 104% higher ACRs (95% CI, 29-223mg/g) and 2-fold greater risk of ACR>30 (95% CI, 1.17-3.44) mg/g after multivariable adjustment. APOL1 genotype showed little association with urine IL-18:Cr ratio, KIM-1:Cr ratio, and NGAL:Cr ratio (estimates of -5% [95% CI, -24% to 18%], -20% [95% CI, -36% to -1%], and 10% [95% CI, -26% to 64%], respectively) or detectable urine A1M (prevalence ratio, 1.13; 95% CI, 0.65-1.97) in adjusted analyses. Compared with women with 0/1 allele, women with 2 risk alleles had faster eGFR decline, by 1.2 (95% CI, 0.2 to 2.2) mL/min/1.73m(2) per year, and 1.7- and 3.4-fold greater rates of incident chronic kidney disease (95% CI, 1.1 to 2.5) and 10% annual eGFR decline (95% CI, 1.7 to 6.7), respectively, with minimal attenuation after adjustment for glomerular and tubular injury biomarker levels. LIMITATIONS Results may not be generalizable to men. CONCLUSIONS Among HIV-infected African American women, APOL1-associated kidney injury appears to localize to the glomerulus, rather than the tubules.
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Affiliation(s)
- Vasantha Jotwani
- Department of Medicine, San Francisco VA Medical Center, San Francisco, CA; Department of Epidemiology and Biostatistics, University of California, San Francisco, CA.
| | - Michael G Shlipak
- Department of Medicine, San Francisco VA Medical Center, San Francisco, CA; Department of Epidemiology and Biostatistics, University of California, San Francisco, CA
| | - Rebecca Scherzer
- Department of Medicine, San Francisco VA Medical Center, San Francisco, CA; Department of Epidemiology and Biostatistics, University of California, San Francisco, CA
| | - Rulan S Parekh
- Hospital for Sick Children, University Healthy Network and University of Toronto, Toronto, Canada; Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - W H Linda Kao
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Michael Bennett
- Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center, Cincinnati, OH
| | - Mardge H Cohen
- Department of Medicine, Stroger Hospital, Rush University, Chicago, IL; Department of Medicine, Rush University, Chicago, IL
| | - Marek Nowicki
- Department of Medicine, University of Southern California, Los Angeles, CA
| | - Anjali Sharma
- Division of Infectious Diseases, Department of Medicine, SUNY Downstate Medical Center, Brooklyn, NY
| | - Mary Young
- Division of Infectious Diseases and Travel Medicine, Department of Medicine, Georgetown University Medical Center, Washington, DC
| | - Phyllis C Tien
- Department of Medicine, San Francisco VA Medical Center, San Francisco, CA
| | - Chirag R Parikh
- Section of Nephrology, Department of Medicine, Yale University, New Haven, CT; Program of Applied Translational Research, Yale University, New Haven, CT
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Kristensen B, Hegedüs L, Lundy SK, Brimnes MK, Smith TJ, Nielsen CH. Characterization of Regulatory B Cells in Graves' Disease and Hashimoto's Thyroiditis. PLoS One 2015; 10:e0127949. [PMID: 26016954 PMCID: PMC4446335 DOI: 10.1371/journal.pone.0127949] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Accepted: 04/21/2015] [Indexed: 12/21/2022] Open
Abstract
A hallmark of regulatory B cells is IL-10 production, hence their designation as IL-10+ B cells. Little is known about the ability of self-antigens to induce IL-10+ B cells in Graves’ disease (GD), Hashimoto’s thyroiditis (HT), or other autoimmune disease. Here we pulsed purified B cells from 12 HT patients, 12 GD patients, and 12 healthy donors with the thyroid self-antigen, thyroglobulin (TG) and added the B cells back to the remaining peripheral blood mononuclear cells (PBMCs). This procedure induced IL-10+ B-cell differentiation in GD. A similar tendency was observed in healthy donors, but not in cells from patients with HT. In GD, B cells primed with TG induced IL-10-producing CD4+ T cells. To assess the maximal frequency of inducible IL-10+ B cells in the three donor groups PBMCs were stimulated with PMA/ionomycin. The resulting IL-10+ B-cell frequency was similar in the three groups and correlated with free T3 levels in GD patients. IL-10+ B cells from both patient groups displayed CD25 or TIM-1 more frequently than did those from healthy donors. B-cell expression of two surface marker combinations previously associated with regulatory B-cell functions, CD24hiCD38hi and CD27+CD43+, did not differ between patients and healthy donors. In conclusion, our findings indicate that autoimmune thyroiditis is not associated with reduced frequency of IL-10+ B cells. These results do not rule out regulatory B-cell dysfunction, however. The observed phenotypic differences between IL-10+ B cells from patients and healthy donors are discussed.
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Affiliation(s)
- Birte Kristensen
- Institute for Inflammation Research, Department of Infectious Diseases and Rheumatology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
| | - Laszlo Hegedüs
- Department of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark
| | - Steven K. Lundy
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States of America
| | - Marie K. Brimnes
- Institute for Inflammation Research, Department of Infectious Diseases and Rheumatology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Terry J. Smith
- Department of Ophthalmology and Visual Sciences, Kellogg Eye Center and Division of Metabolism, Endocrinology, and Diabetes, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, United States of America
| | - Claus H. Nielsen
- Institute for Inflammation Research, Department of Infectious Diseases and Rheumatology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
- * E-mail:
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Yeung MY, Ding Q, Brooks CR, Xiao S, Workman CJ, Vignali DA, Ueno T, Padera RF, Kuchroo VK, Najafian N, Rothstein DM. TIM-1 signaling is required for maintenance and induction of regulatory B cells. Am J Transplant 2015; 15:942-53. [PMID: 25645598 PMCID: PMC4530122 DOI: 10.1111/ajt.13087] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Revised: 10/09/2014] [Accepted: 10/28/2014] [Indexed: 01/25/2023]
Abstract
Apart from their role in humoral immunity, B cells can exhibit IL-10-dependent regulatory activity (Bregs). These regulatory subpopulations have been shown to inhibit inflammation and allograft rejection. However, our understanding of Bregs has been hampered by their rarity, lack of a specific marker, and poor insight into their induction and maintenance. We previously demonstrated that T cell immunoglobulin mucin domain-1 (TIM-1) identifies over 70% of IL-10-producing B cells, irrespective of other markers. We now show that TIM-1 is the primary receptor responsible for Breg induction by apoptotic cells (ACs). However, B cells that express a mutant form of TIM-1 lacking the mucin domain (TIM-1(Δmucin) ) exhibit decreased phosphatidylserine binding and are unable to produce IL-10 in response to ACs or by specific ligation with anti-TIM-1. TIM-1(Δmucin) mice also exhibit accelerated allograft rejection, which appears to be due in part to their defect in both baseline and induced IL-10(+) Bregs, since a single transfer of WT TIM-1(+) B cells can restore long-term graft survival. These data suggest that TIM-1 signaling plays a direct role in Breg maintenance and induction both under physiological conditions (in response to ACs) and in response to therapy through TIM-1 ligation. Moreover, they directly demonstrate that the mucin domain regulates TIM-1 signaling.
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Affiliation(s)
- Melissa Y. Yeung
- Transplantation Research Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Qing Ding
- Thomas E. Starzl Transplantation Institute, Departments of Surgery and Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Craig R. Brooks
- Renal Division, Harvard Medical School, Boston, Massachusetts, USA
| | - Sheng Xiao
- Center for Neurologic Disease, Harvard Medical School, Boston, Massachusetts, USA
| | - Creg J. Workman
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Immunology, St Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Dario A.A. Vignali
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Department of Immunology, St Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Takuya Ueno
- Transplantation Research Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Robert F. Padera
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Vijay K. Kuchroo
- Center for Neurologic Disease, Harvard Medical School, Boston, Massachusetts, USA
| | - Nader Najafian
- Transplantation Research Center, Harvard Medical School, Boston, Massachusetts, USA
- Department of Nephrology, Cleveland Clinic Florida, Weston, FL, USA
| | - David M. Rothstein
- Thomas E. Starzl Transplantation Institute, Departments of Surgery and Immunology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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Yang L, Brooks CR, Xiao S, Sabbisetti V, Yeung MY, Hsiao LL, Ichimura T, Kuchroo V, Bonventre JV. KIM-1-mediated phagocytosis reduces acute injury to the kidney. J Clin Invest 2015; 125:1620-36. [PMID: 25751064 DOI: 10.1172/jci75417] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 01/22/2015] [Indexed: 12/13/2022] Open
Abstract
Kidney injury molecule 1 (KIM-1, also known as TIM-1) is markedly upregulated in the proximal tubule after injury and is maladaptive when chronically expressed. Here, we determined that early in the injury process, however, KIM-1 expression is antiinflammatory due to its mediation of phagocytic processes in tubule cells. Using various models of acute kidney injury (AKI) and mice expressing mutant forms of KIM-1, we demonstrated a mucin domain-dependent protective effect of epithelial KIM-1 expression that involves downregulation of innate immunity. Deletion of the mucin domain markedly impaired KIM-1-mediated phagocytic function, resulting in increased proinflammatory cytokine production, decreased antiinflammatory growth factor secretion by proximal epithelial cells, and a subsequent increase in tissue macrophages. Mice expressing KIM-1Δmucin had greater functional impairment, inflammatory responses, and mortality in response to ischemia- and cisplatin-induced AKI. Compared with primary renal proximal tubule cells isolated from KIM-1Δmucin mice, those from WT mice had reduced proinflammatory cytokine secretion and impaired macrophage activation. The antiinflammatory effect of KIM-1 expression was due to the interaction of KIM-1 with p85 and subsequent PI3K-dependent downmodulation of NF-κB. Hence, KIM-1-mediated epithelial cell phagocytosis of apoptotic cells protects the kidney after acute injury by downregulating innate immunity and inflammation.
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Shafranskaia KS, Uchasova EG, Sumin DA, Krivoshapova KE, Kalaeva VV, Evseeva MV, Karetnikova VN, Barbarash OL, Barbarash LS. [Role of kidney injury molecule-1 (KIM-1) for inhospital event risk assessment after coronary artery bypass surgery]. Kardiologiia 2015; 54:4-10. [PMID: 25702396 DOI: 10.18565/cardio.2014.9.4-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AIM To assess value of kidney injury molecule-1 (KIM-1) for prediction of inhospital events in CAD patients undergoing coronary artery bypass graft (CABG) surgery. MATERIAL AND METHODS We analyzed postoperative course of 719 patients subjected to CABG in Research Institute for Complex Issues of Cardiovascular Diseases between March, 2011 and April, 2012. In all patients we measured creatinine concentrations, glomerular filtration rate (GFR) by MDRD and urine KIM-1 levels before and on day 7 after CABG. Major unfavorable events (myocardial infarction, stroke or transient ischemic attack, acute or decompensated chronic renal failure or remediastinotomy) were registered during hospital stay. The EuroSCORE (European System for Cardiac Operative Risk Evaluation) risk of operative mortality was calculated for each patient. RESULTS Patients with different EuroSCORE risk had similar serum creatinine levels while KIM-1 concentrations in urine were significantly higher in patients with moderate and high EuroSCORE risk as compared with low-risk patients. Patients who experienced postoperative events had significantly higher KIM-1 both before and after surgery while there were no differences in such renal dysfunction markers as creatinine and GFR. CONCLUSION Preoperative elevated KIM-1 can act as a marker of complicated postoperative period after CABG.
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Holzscheiter L, Beck C, Rutz S, Manuilova E, Domke I, Guder WG, Hofmann W. NGAL, L-FABP, and KIM-1 in comparison to established markers of renal dysfunction. Clin Chem Lab Med 2015; 52:537-46. [PMID: 24243749 DOI: 10.1515/cclm-2013-0693] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 10/13/2013] [Indexed: 11/15/2022]
Abstract
BACKGROUND New urinary biomarkers like neutrophil gelatinase-associated lipocalin (NGAL), liver-type fatty acid binding protein (L-FABP), and kidney injury molecule-1 (KIM-1) open the opportunity to detect kidney injuries in early stages. Our study aimed at evaluating NGAL, L-FABP, and KIM-1 in comparison to established markers of urine protein differentiation for detection of renal dysfunction. METHODS On the basis of the PROTIS expert system (for differentiation of glomerulo-/tubulopathy) urine and plasma samples of 263 randomly selected patients were routinely examined (urine: total protein, albumin, IgG, α1-microglobulin, creatinine, and dip stick results for leukocytes, blood, protein, glucose, pH, and nitrite; plasma: creatinine and cystatin C) followed by the analysis of the new urine biomarkers NGAL (CMIA), L-FABP (ECLIA), and KIM-1 (ELISA). RESULTS Of the three new markers L-FABP showed the highest correlation with α1-microglobulin (r=0.76, p<0.01) and was closest associated with the degree of tubular proteinuria assessed by the PROTIS system. NGAL distinguished the PROTIS proteinuria groups with distinctive tubular proteinurias from the controls as well, but revealed a marked diagnostic influence by leukocyturia. Urinary KIM-1 revealed only a weak diagnostic value for the detection of renal injury. CONCLUSIONS Urinary NGAL and L-FABP proved to be promising candidates for detecting injuries of the renal tubular system over a broad range of clinical conditions. L-FABP showed a better diagnostic performance and a lower interference by leukocyturia and hematuria than NGAL. Both markers may serve as sensitive tissue injury markers in addition to the established markers of renal functional impairment.
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Blum JL, Edwards JR, Prozialeck WC, Xiong JQ, Zelikoff JT. Effects of Maternal Exposure to Cadmium Oxide Nanoparticles During Pregnancy on Maternal and Offspring Kidney Injury Markers Using a Murine Model. J Toxicol Environ Health A 2015; 78:711-24. [PMID: 26090557 PMCID: PMC4560236 DOI: 10.1080/15287394.2015.1026622] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nanoparticles (NP) are pervasive in many areas of modern life, with little known about their potential toxicities. One commercially important NP is cadmium oxide (CdO), which is used to synthesize other Cd-containing NP, such as quantum dots. Cadmium (Cd) is a well-known nephrotoxicant, but the nephrotoxic potential of CdO NP remains unknown, particularly when exposure occurs during pregnancy. Therefore, pregnant CD-1 mice were used to examine the effects of inhaled CdO NP (230 μg CdO NP/m(3)) on maternal and neonatal renal function by examining urinary creatinine and urinary biomarkers of kidney injury, including kidney injury molecule-1 (Kim-1) and neutrophil gelatinase-associated lipocalin (NGAL). Inhalation of CdO NP by dams produced a fivefold increase in urinary Kim-1 with no marked effect on urinary creatinine levels. Kim-1 mRNA expression peaked by gestational day (GD) 10.5, and NGAL expression increased from GD 10.5 to 17.5. In addition, histological analyses revealed proximal tubular pathology at GD 10.5. Neonatal Kim-1 mRNA expression rose between postnatal days (PND) 7 and 14, with mammary glands/milk being the apparent source of Cd for offspring. These studies demonstrate that, similar to what is seen with other Cd forms, Cd associated with inhaled CdO NP results in renal injury to both directly exposed dam and offspring. As commercial uses for nanotechnology continue to expand throughout the world, risks for unintentional exposure in the workplace increase. Given the large number of women in the industrial workforce, care needs to be taken to protect these already vulnerable populations.
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Affiliation(s)
- Jason L. Blum
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, New York, USA
| | - Joshua R. Edwards
- Department of Pharmacology, Midwestern University, Downers Grove, Illinois, USA
| | | | - Judy Q. Xiong
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, New York, USA
| | - Judith T. Zelikoff
- Department of Environmental Medicine, New York University School of Medicine, Tuxedo, New York, USA
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Fufaa GD, Weil EJ, Nelson RG, Hanson RL, Bonventre JV, Sabbisetti V, Waikar SS, Mifflin TE, Zhang X, Xie D, Hsu CY, Feldman HI, Coresh J, Vasan RS, Kimmel PL, Liu KD. Association of urinary KIM-1, L-FABP, NAG and NGAL with incident end-stage renal disease and mortality in American Indians with type 2 diabetes mellitus. Diabetologia 2015; 58:188-98. [PMID: 25316431 PMCID: PMC4258130 DOI: 10.1007/s00125-014-3389-3] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 09/03/2014] [Indexed: 12/23/2022]
Abstract
AIMS/HYPOTHESIS Kidney injury molecule 1 (KIM-1), liver fatty acid-binding protein (L-FABP), N-acetyl-β-D-glucosaminidase (NAG) and neutrophil gelatinase-associated lipocalin (NGAL) are urinary biomarkers of renal tubular injury. We examined their association with incident end-stage renal disease (ESRD) and all-cause mortality in American Indians with type 2 diabetes. METHODS Biomarker concentrations were measured in baseline urine samples in 260 Pima Indians who were followed for a median of 14 years. HRs were reported per SD of creatinine (Cr)-normalised log-transformed KIM-1, NAG and NGAL, and for three categories of L-FABP. RESULTS During follow-up, 74 participants developed ESRD and 101 died. Median concentrations of KIM-1/Cr, NAG/Cr and NGAL/Cr and the proportion of detectable L-FABP were highest in those with macroalbuminuria (p < 0.001 for KIM-1/Cr, NAG/Cr and L-FABP; p = 0.006 for NGAL/Cr). After multivariable adjustment, NGAL/Cr was positively associated with ESRD (HR 1.59, 95% CI 1.20, 2.11) and mortality (HR 1.39, 95% CI 1.06, 1.82); L-FABP/Cr was inversely associated with ESRD (HR [for highest vs lowest tertile] 0.40, 95% CI 0.19, 0.83). Addition of NGAL/Cr to models that included albuminuria and glomerular filtration rate increased the c-statistic for predicting ESRD from 0.828 to 0.833 (p = 0.001) and for death from 0.710 to 0.722 (p = 0.018). Addition of L-FABP/Cr increased the c-statistic for ESRD from 0.828 to 0.832 (p = 0.042). CONCLUSIONS/INTERPRETATION In Pima Indians with type 2 diabetes, urinary concentrations of NGAL and L-FABP are associated with important health outcomes, but they are unlikely to add to risk prediction with standard markers in a clinically meaningful way given the small increase in the c-statistic.
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Affiliation(s)
- Gudeta D Fufaa
- Diabetes Epidemiology and Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, 1550 East Indian School Road, Phoenix, AZ, 85014-4972, USA
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Yoo HS, Bradford BU, Kosyk O, Uehara T, Shymonyak S, Collins LB, Bodnar WM, Ball LM, Gold A, Rusyn I. Comparative analysis of the relationship between trichloroethylene metabolism and tissue-specific toxicity among inbred mouse strains: kidney effects. J Toxicol Environ Health A 2015; 78:32-49. [PMID: 25424545 PMCID: PMC4281933 DOI: 10.1080/15287394.2015.958418] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Trichloroethylene (TCE) is a well-known environmental and occupational toxicant that is classified as carcinogenic to humans based on the epidemiological evidence of an association with higher risk of renal-cell carcinoma. A number of scientific issues critical for assessing human health risks from TCE remain unresolved, such as the amount of kidney-toxic glutathione conjugation metabolites formed, interspecies and interindividual differences, and the mode of action for kidney carcinogenicity. It was postulated that TCE renal metabolite levels are associated with kidney-specific toxicity. Oral dosing with TCE was conducted in subacute (600 mg/kg/d; 5 d; 7 inbred mouse strains) and subchronic (100 or 400 mg/kg/d; 1, 2, or 4 wk; 2 inbred mouse strains) designs. The quantitative relationship was evaluated between strain-, dose, and time-dependent formation of TCE metabolites from cytochrome P-450-mediated oxidation (trichloroacetic acid [TCA], dichloroacetic acid [DCA], and trichloroethanol) and glutathione conjugation [S-(1,2-dichlorovinyl)-L-cysteine and S-(1,2-dichlorovinyl)glutathione], and various kidney toxicity phenotypes. In subacute study, interstrain differences in renal TCE metabolite levels were observed. In addition, data showed that in several strains kidney-specific effects of TCE included induction of peroxisome proliferator-marker genes Cyp4a10 and Acox1, increased cell proliferation, and expression of KIM-1, a marker of tubular damage and regeneration. In subchronic study, peroxisome proliferator-marker gene induction and renal toxicity diminished while cell proliferative response was elevated in a dose-dependent manner in NZW/LacJ but not C57BL/6J mice. Overall, data demonstrated that renal TCE metabolite levels are associated with kidney-specific toxicity and that these effects are strain dependent.
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Affiliation(s)
- Hong Sik Yoo
- a Department of Environmental Sciences and Engineering , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina , USA
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Goknar N, Oktem F, Ozgen IT, Torun E, Kuçukkoc M, Demir AD, Cesur Y. Determination of early urinary renal injury markers in obese children. Pediatr Nephrol 2015; 30:139-44. [PMID: 24801174 DOI: 10.1007/s00467-014-2829-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 03/27/2014] [Accepted: 04/10/2014] [Indexed: 01/09/2023]
Abstract
BACKGROUND Obesity is an important health issue, the prevalence of which is increasing in childhood. The aim of this study was to examine urinary renal injury markers in order to determine the renal effect of obesity and its comorbidities in a pediatric population. METHODS Eighty-four obese children and 64 healthy control subjects were enrolled in the study. We checked their urine using N-acetyl-beta-D-glucosaminidase (NAG), neutrophil gelatinase-associated lipocalin (NGAL), kidney injury molecule-1 (KIM-1), and microalbumin as renal injury markers. Associations of renal damage markers with hypertension, an impaired glucose tolerance test, and insulin resistance were assessed. RESULTS Obese individuals had higher urinary NAG and KIM-1 values compared to those of healthy controls (p = 0.027, p = 0.026). There was no difference in urinary NGAL between obese and lean subjects (p = 0.885). Urinary renal injury markers were not statistically different in the obese group when checked for impaired glucose tolerance, insulin resistance, and hypertension (p > 0.05). CONCLUSIONS This study shows that urinary NAG and KIM-1 could be used as a screening method for detection of early renal damage in obese children.
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Affiliation(s)
- Nilufer Goknar
- Department of Pediatric Nephrology, Bezmialem Vakif University Medical Faculty, Istanbul, Turkey
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Wallin M, Sallsten G, Lundh T, Barregard L. Low-level cadmium exposure and effects on kidney function. Occup Environ Med 2014; 71:848-54. [PMID: 25286916 PMCID: PMC4251161 DOI: 10.1136/oemed-2014-102279] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 09/09/2014] [Accepted: 09/17/2014] [Indexed: 12/13/2022]
Abstract
OBJECTIVES The nephrotoxicity of cadmium at low levels of exposure, measured by urinary cadmium, has recently been questioned since co-excretion of cadmium and proteins may have causes other than cadmium toxicity. The aim of this study was to explore the relation between kidney function and low or moderate cadmium levels, measured directly in kidney biopsies. METHODS We analysed cadmium in kidney biopsies (K-Cd), blood (B-Cd) and urine (U-Cd) from 109 living kidney donors in a cross-sectional study. We measured glomerular filtration rate (GFR), cystatin C in serum, albumin, β-2-microglobulin (B2M), retinol-binding protein (RBP), α-1-microglobulin (A1M), N-acetyl-β-d-glucosaminidase and kidney injury molecule 1 (KIM-1) in 24 h and overnight urine. RESULTS We found significant positive associations between A1M excretion and K-Cd in multiple regression models including age, sex, weight, smoking and urinary flow rate. This association was also present in never-smokers. A1M was also positively associated with B-Cd and U-Cd. GFR and the other biomarkers of kidney function were not associated with K-Cd. GFR estimated from serum cystatin C showed a very poor correlation with measured GFR. KIM-1, RBP and possibly albumin were positively associated with U-Cd, but only in overnight urine. No associations were found with B2M. CONCLUSIONS Our results suggest that A1M in urine is a sensitive biomarker for effects of low-level cadmium exposure. A few associations between other renal biomarkers and U-Cd, but not K-Cd, were probably caused by physiological co-excretion or chance.
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Affiliation(s)
- Maria Wallin
- Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital and Academy, University of Gothenburg, Gothenburg, Sweden
| | - Gerd Sallsten
- Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital and Academy, University of Gothenburg, Gothenburg, Sweden
| | - Thomas Lundh
- Department of Occupational and Environmental Medicine, Lund University Hospital, Lund, Sweden
| | - Lars Barregard
- Department of Occupational and Environmental Medicine, Sahlgrenska University Hospital and Academy, University of Gothenburg, Gothenburg, Sweden
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Petrica L, Vlad A, Gluhovschi G, Gadalean F, Dumitrascu V, Gluhovschi C, Velciov S, Bob F, Vlad D, Popescu R, Milas O, Ursoniu S. Proximal tubule dysfunction is associated with podocyte damage biomarkers nephrin and vascular endothelial growth factor in type 2 diabetes mellitus patients: a cross-sectional study. PLoS One 2014; 9:e112538. [PMID: 25397960 PMCID: PMC4232371 DOI: 10.1371/journal.pone.0112538] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 10/09/2014] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND There is an ongoing debate as to whether early diabetic nephropathy in Type 2 diabetes mellitus may be attributed to the glomerulus or to the proximal tubule. Urinary excretion of nephrin and vascular endothelial growth factor may increase even in the normoalbuminuria stage. In the course of diabetic nephropathy, the proximal tubule may be involved in the uptake of urinary nephrin and vascular endothelial growth factor. MATERIALS AND METHODS Two groups of consecutive Type 2 diabetes mellitus outpatients (38 normo-, 32 microalbuminuric) and 21 healthy subjects were enrolled in a cross-sectional study and evaluated concerning the relation of proximal tubule dysfunction with the podocyte biomarkers excretion, assessed by ELISA methods. The impact of advanced glycation end-products on this relation was also queried. RESULTS Urinary alpha1-microglobulin and kidney injury molecule-1 correlated with urinary albumin:creatinine ratio (R2 = 0.269; p < 0.001; R2 = 0.125; p < 0.001), nephrinuria (R2 = 0.529; p<0.001; R2 = 0.203; p < 0.001), urinary vascular endothelial growth factor (R2 = 0.709; p < 0.001; R2 = 0.360; p < 0.001), urinary advanced glycation end-products (R2 = 0.578; p < 0.001; R2 = 0.405; p < 0.001), serum cystatin C (R2 = 0.130; p < 0.001; R2 = 0.128; p<0.001), and glomerular filtration rate (R2 = 0.167; p < 0.001; R2 = 0.166; p < 0.001); nephrinuria and urinary vascular endothelial growth factor correlated with urinary albumin:creatinine ratio (R2 = 0.498; p < 0.001; R2 = 0.227; p<0.001), urinary advanced glycation end-products (R2 = 0.251; p < 0.001; R2 = 0.308; p < 0.001), serum cystatin C (R2 = 0.157; p < 0.001; R2 = 0.226; p < 0.001), and glomerular filtration rate (R2 = 0.087; p = 0.007; R2 = 0.218; p < 0.001). CONCLUSIONS In Type 2 diabetes mellitus there is an association of proximal tubule dysfunction with podocyte damage biomarkers, even in the normoalbuminuria stage. This observation suggests a potential role of the proximal tubule in urinary nephrin and urinary vascular endothelial growth factor processing in early diabetic nephropathy, a fact which could be related to advanced glycation end-products intervention. Podocyte damage and proximal tubule dysfunction biomarkers could be validated as a practical approach to the diagnosis of early diabetic nephropathy by further studies on larger cohorts.
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Affiliation(s)
- Ligia Petrica
- “Victor Babes” University of Medicine and Pharmacy, Dept. of Nephrology, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Adrian Vlad
- “Victor Babes” University of Medicine and Pharmacy, Dept. of Diabetes and Metabolic Diseases, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Gheorghe Gluhovschi
- “Victor Babes” University of Medicine and Pharmacy, Dept. of Nephrology, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Florica Gadalean
- “Victor Babes” University of Medicine and Pharmacy, Dept. of Nephrology, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Victor Dumitrascu
- “Victor Babes” University of Medicine and Pharmacy, Department of Pharmacology, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Cristina Gluhovschi
- “Victor Babes” University of Medicine and Pharmacy, Dept. of Nephrology, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Silvia Velciov
- “Victor Babes” University of Medicine and Pharmacy, Dept. of Nephrology, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Flaviu Bob
- “Victor Babes” University of Medicine and Pharmacy, Dept. of Nephrology, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Daliborca Vlad
- “Victor Babes” University of Medicine and Pharmacy, Department of Pharmacology, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Roxana Popescu
- “Victor Babes” University of Medicine and Pharmacy, Dept. of Cellular Biology, Timisoara, Romania
- County Emergency Hospital, Timisoara, Romania
| | - Oana Milas
- County Emergency Hospital, Timisoara, Romania
| | - Sorin Ursoniu
- “Victor Babes” University of Medicine and Pharmacy, Dept. of Public Health Medicine, Timisoara, Romania
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Legrand M, De Berardinis B, Gaggin HK, Magrini L, Belcher A, Zancla B, Femia A, Simon M, Motiwala S, Sambhare R, Di Somma S, Mebazaa A, Vaidya VS, Januzzi JL, (GREAT) FTGROACT. Evidence of uncoupling between renal dysfunction and injury in cardiorenal syndrome: insights from the BIONICS study. PLoS One 2014; 9:e112313. [PMID: 25386851 PMCID: PMC4227686 DOI: 10.1371/journal.pone.0112313] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 10/09/2014] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVE The objective of the study was to assess urinary biomarkers of renal injury for their individual or collective ability to predict Worsening renal function (WRF) in patients with acutely decompensated heart failure (ADHF). METHODS In a prospective, blinded international study, 87 emergency department (ED) patients with ADHF were evaluated with biomarkers of cardiac stretch (B type natriuretic peptide [BNP] and its amino terminal equivalent [NT-proBNP], ST2), biomarkers of renal function (creatinine, estimated glomerular filtration rate [eGFR]) and biomarkers of renal injury (plasma neutrophil gelatinase associated lipocalin [pNGAL], urine kidney injury molecule-1 [KIM-1], urine N-acetyl-beta-D-glucosaminidase [NAG], urine Cystatin C, urine fibrinogen). The primary endpoint was WRF. RESULTS 26% developed WRF; baseline characteristics of subjects who developed WRF were generally comparable to those who did not. Biomarkers of renal function and urine biomarkers of renal injury were not correlated, while urine biomarkers of renal injury correlated between each other. Biomarker concentrations were similar between patients with and without WRF except for baseline BNP. Although plasma NGAL was associated with the combined endpoint, none of the biomarker showed predictive accuracy for WRF. CONCLUSIONS In ED patients with ADHF, urine biomarkers of renal injury did not predict WRF. Our data suggest that a weak association exists between renal dysfunction and renal injury in this setting (Clinicaltrials.gov NCT#0150153).
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Affiliation(s)
- Matthieu Legrand
- AP-HP, Groupe hospitalier St-Louis-Lariboisière, Department of Anesthesiology and Critical Care and Burn unit, F-75475, Paris, France
- Univ Paris Diderot, Paris, France
- U942 Inserm F-75475, Paris, France
| | - Benedetta De Berardinis
- Emergency Medicine, Department of Medical-Surgery Sciences and Translational Medicine, University Sapienza Rome, Sant’Andrea Hospital, Roma, Italy
| | - Hanna K. Gaggin
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Laura Magrini
- Emergency Medicine, Department of Medical-Surgery Sciences and Translational Medicine, University Sapienza Rome, Sant’Andrea Hospital, Roma, Italy
| | - Arianna Belcher
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Benedetta Zancla
- Emergency Medicine, Department of Medical-Surgery Sciences and Translational Medicine, University Sapienza Rome, Sant’Andrea Hospital, Roma, Italy
| | | | - Mandy Simon
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Shweta Motiwala
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Rasika Sambhare
- Harvard Medical School and Harvard School of Public Health, Boston, MA, United States of America
| | - Salvatore Di Somma
- Emergency Medicine, Department of Medical-Surgery Sciences and Translational Medicine, University Sapienza Rome, Sant’Andrea Hospital, Roma, Italy
| | - Alexandre Mebazaa
- AP-HP, Groupe hospitalier St-Louis-Lariboisière, Department of Anesthesiology and Critical Care and Burn unit, F-75475, Paris, France
- Univ Paris Diderot, Paris, France
- U942 Inserm F-75475, Paris, France
| | - Vishal S. Vaidya
- Harvard Medical School and Harvard School of Public Health, Boston, MA, United States of America
| | - James L. Januzzi
- Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States of America
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Kim SS, Song SH, Kim IJ, Kim WJ, Jeon YK, Kim BH, Kwak IS, Lee EK, Kim YK. Nonalbuminuric proteinuria as a biomarker for tubular damage in early development of nephropathy with type 2 diabetic patients. Diabetes Metab Res Rev 2014; 30:736-41. [PMID: 24687388 DOI: 10.1002/dmrr.2546] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 03/04/2014] [Accepted: 03/17/2014] [Indexed: 01/28/2023]
Abstract
AIM The aim of this study was to evaluate the association between urinary nonalbumin protein (NAP) and urinary tubular markers in early diabetic nephropathy. METHODS Urinary NAP was measured in 118 patients with type 2 diabetes with estimated glomerular filtration rates (eGFR) ≥60 mL/min/1.73 m². Urine levels of tubular markers [kidney injury molecule (KIM)-1, neutrophil gelatinase-assoicated lipocalin (NGAL) and liver-type fatty acid-binding protein (L-FABP)] were measured by using an Enzyme-linked immunosorbent assay (ELISA). Patients were divided into three groups according to urinary NAP values. RESULTS The urine levels of KIM-1, NGAL and L-FABP were significantly higher in the third tertile group than in the first tertile group (all p < 0.001). There was a significant positive correlation between NAP and each tubular marker (KIM-1, NGAL and L-FABP) in univariate analysis (all p < 0.001). Urinary NAP was positively correlated with all urinary tubular markers after adjustment for age, duration of diabetes, systolic blood pressure, eGFR, low-density lipoprotein cholesterol, HbA1c and albumin-to-creatinine ratio (KIM-1 r = 0.170, p < 0.001; NGAL r = 0.142, p < 0.015 and L-FABP r = 0.262, p < 0.001). In normoalbuminuric patients (n = 58), urinary NAP was also significantly correlated with NGAL and L-FABP in multivariate regression analyses (r = 0.302, p = 0.030 and r = 0.430, p = 0.001). CONCLUSIONS These findings suggest that urinary NAP reflects tubular damage in the early-stage type 2 diabetic nephropathy (eGFR ≥ 60 mL/min/1.73 m²). We suggest that urinary NAP could be used as a biomarker for tubular damage in clinical practice.
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Affiliation(s)
- Sang Soo Kim
- Department of Internal Medicine, Pusan National University Hospital, Busan, South Korea; Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
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Morales-Buenrostro LE, Salas-Nolasco OI, Barrera-Chimal J, Casas-Aparicio G, Irizar-Santana S, Pérez-Villalva R, Bobadilla NA. Hsp72 is a novel biomarker to predict acute kidney injury in critically ill patients. PLoS One 2014; 9:e109407. [PMID: 25313566 PMCID: PMC4196900 DOI: 10.1371/journal.pone.0109407] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Accepted: 09/03/2014] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Acute kidney injury (AKI) complicates the course of disease in critically ill patients. Efforts to change its clinical course have failed because of the fail in the early detection. This study was designed to assess whether heat shock protein (Hsp72) is an early and sensitive biomarker of acute kidney injury (AKI) compared with kidney injury molecule (Kim-1), neutrophil gelatinase-associated lipocalin (NGAL), and interleukin-18 (IL-18) biomarkers. METHODS A total of 56 critically ill patients fulfilled the inclusion criteria. From these patients, 17 developed AKI and 20 were selected as controls. In AKI patients, Kim-1, IL-18, NGAL, and Hsp72 were measured from 3 days before and until 2 days after the AKI diagnosis and in no-AKI patients at 1, 5 and 10 days after admission. Biomarker sensitivity and specificity were determined. To validate the results obtained with ROC curves for Hsp72, a new set of critically ill patients was included, 10 with AKI and 12 with no-AKI patients. RESULTS Urinary Hsp72 levels rose since 3 days before the AKI diagnosis in critically ill patients; this early increase was not seen with any other tested biomarkers. Kim-1, IL-18, NGAL, and Hsp72 significantly increased from 2 days before AKI and remained elevated during the AKI diagnosis. The best sensitivity/specificity was observed in Kim-1 and Hsp72: 83/95% and 100/90%, respectively, whereas 1 day before the AKI diagnosis, the values were 100/100% and 100/90%, respectively. The sensibility, specificity and accuracy in the validation test for Hsp72 were 100%, 83.3% and 90.9%, respectively. CONCLUSIONS The biomarker Hsp72 is enough sensitive and specific to predict AKI in critically ill patients up to 3 days before the diagnosis.
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Affiliation(s)
- Luis E. Morales-Buenrostro
- Department of Nephrology Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
- * E-mail: (LEMB); (NAB)
| | - Omar I. Salas-Nolasco
- Department of Nephrology Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Jonatan Barrera-Chimal
- Department of Nephrology Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
- Unidad de Fisiología Molecular, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México City, México
| | - Gustavo Casas-Aparicio
- Department of Nephrology Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Sergio Irizar-Santana
- Department of Nephrology Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
| | - Rosalba Pérez-Villalva
- Department of Nephrology Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
- Unidad de Fisiología Molecular, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México City, México
| | - Norma A. Bobadilla
- Department of Nephrology Nefrología y Metabolismo Mineral, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, México City, México
- Unidad de Fisiología Molecular, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, México City, México
- * E-mail: (LEMB); (NAB)
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Liu X, Huang DW, Wu KJ, Wu YN, Jia XW, Gong ZY. An evaluation of genotoxicity and cytotoxicity of melamine in combination with cyanuric acid at three mass ratios. Biomed Environ Sci 2014; 27:641-645. [PMID: 25189612 DOI: 10.3967/bes2014.098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Accepted: 07/16/2014] [Indexed: 06/03/2023]
Abstract
Melamine in combination with cyanuric acid has been considered to be more toxic than either melamine or cyanuric acid alone. The objective of this study was designed to evaluate the combined genotoxicity and cytotoxicity of melamine (M) and cyanuric acid (C) at three mass ratios (1:1, 1:2, 2:1). MC (1:1), MC (1:2), and MC (2:1) were evaluated for their potential genotoxic risk, at gene level by Ames test, and at chromosomal level by micronucleus test. In order to evaluate cytotoxicity in HEK-293 cells, the MTT assay was included. Western blot was also employed to investigate the renal injury molecule-1 (Kim-1) expression in HEK-293 cells exposed to MC. Neither genotoxicity at gene level nor at chromosomal level was observed for MC (1:1), MC (1:2), and MC (2:1). Based on MTT assay, three ratios of MC at 82.5 and 165 µg/mL slightly inhibited viability of HEK-293 cells (P<0.05). MC (1:1) at 41.25 and 82.50 µg/mL could elevate the Kim-1 expression in HEK-293 cells.
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Affiliation(s)
- Xin Liu
- Institute of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, China; Hubei Collaborative Innovation Center for Processing of Agricultural Products, Wuhan Polytechnic University, Wuhan 430023, Hubei, China
| | - Da Wei Huang
- Institute of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, China
| | - Ke Jia Wu
- Institute of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, China
| | - Yong Ning Wu
- Hubei Collaborative Innovation Center for Processing of Agricultural Products, Wuhan Polytechnic University, Wuhan 430023, Hubei, China; China National Center for Food Safety Risk Assessment, Chaoyang District, Beijing 100050, China
| | - Xi Wu Jia
- Institute of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, China
| | - Zhi Yong Gong
- Institute of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, China; Hubei Collaborative Innovation Center for Processing of Agricultural Products, Wuhan Polytechnic University, Wuhan 430023, Hubei, China
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Mindikoglu AL, Dowling TC, Wong-You-Cheong JJ, Christenson RH, Magder LS, Hutson WR, Seliger SL, Weir MR. A pilot study to evaluate renal hemodynamics in cirrhosis by simultaneous glomerular filtration rate, renal plasma flow, renal resistive indices and biomarkers measurements. Am J Nephrol 2014; 39:543-52. [PMID: 24943131 DOI: 10.1159/000363584] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 05/08/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND Renal hemodynamic measurements are complicated to perform in patients with cirrhosis, yet they provide the best measure of risk to predict hepatorenal syndrome (HRS). Currently, there are no established biomarkers of altered renal hemodynamics in cirrhosis validated by measured renal hemodynamics. METHODS In this pilot study, simultaneous measurements of glomerular filtration rate (GFR), renal plasma flow (RPF), renal resistive indices and biomarkers were performed to evaluate renal hemodynamic alterations in 10 patients with cirrhosis (3 patients without ascites, 5 with diuretic-sensitive and 2 diuretic-refractory ascites). RESULTS Patients with diuretic-refractory ascites had the lowest mean GFR (36.5 ml/min/1.73 m(2)) and RPF (133.6 ml/min/1.73 m(2)) when compared to those without ascites (GFR 82.9 ml/min/1.73 m(2), RPF 229.9 ml/min/1.73 m(2)) and with diuretic-sensitive ascites (GFR 82.3 ml/min/1.73 m(2), RPF 344.1 ml/min/1.73 m(2)). A higher mean filtration fraction (FF) (GFR/RPF 0.36) was noted among those without ascites compared to those with ascites. Higher FF in patients without ascites is most likely secondary to the vasoconstriction in the efferent glomerular arterioles (normal FF ~0.20). In general, renal resistive indices were inversely related to FF. While patients with ascites had lower FF and higher right kidney main and arcuate artery resistive indices, those without ascites had higher FF and lower right kidney main and arcuate artery resistive indices. While cystatin C and β2-microglobulin performed better compared to Cr in estimating RPF, β-trace protein, β2-microglobulin, and SDMA, and (SDMA+ADMA) performed better in estimating right kidney arcuate artery resistive index. CONCLUSION The results of this pilot study showed that identification of non-invasive biomarkers of reduced RPF and increased renal resistive indices can identify cirrhotics at risk for HRS at a stage more amenable to therapeutic intervention and reduce mortality from kidney failure in cirrhosis.
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Affiliation(s)
- Ayse L Mindikoglu
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Maryland School of Medicine, Baltimore, Md., USA
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Wang L, Pu X. [Predict value of monitoring changes of urinary neutrophil gelatinase-associated lipocalin and kidney injury molecule-1 after coronary angiography and percutaneous coronary intervention on early diagnosis of contrast-induced nephropathy]. Zhonghua Xin Xue Guan Bing Za Zhi 2014; 42:301-304. [PMID: 24924456] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To explore the predict value of monitoring changes of urinary neutrophil gelatinase-associated lipocalin (NGAL) and kidney injury molecule-1(KIM-1) after coronary angiography (CAG) and percutaneous coronary intervention (PCI) on the early diagnosis of contrast-induced nephropathy(CIN). METHODS One hundred and sixty patients underwent CAG and PCI were enrolled in this prospective study. There were 14 patients with CIN and non-CIN patients were selected with the proportion of 2: 1 (n = 28).Serum creatinine (SCr) was measured before and at 24, 48 and 72 h after the procedure. Urinary NGAL and KIM-1 were measured before and at 4 and 24 h after the procedure. The relationship between NGAL, KIM-1 and CIN were analyzed. Receiver operating characteristic (ROC) curve and area under the ROC curve (AUC) were used to analyze the diagnostic sensitivity and specificity of CIN by urinary NGAL and KIM-1. RESULTS (1) The values of urinary NGAL was significantly higher in the CIN group than in non-CIN group at 4 h after CAG or PCI (P < 0.01); the value of urinary NGAL was significantly increased from the baseline to 4 h after the procedure in the CIN group (P < 0.01). (2) Uurinary KIM-1 levels of CIN group was significantly higher than in non-CIN group at 24 h after the CAG or PCI (P < 0.01) ; the urinary KIM-1 levels was significantly increased from baseline to 24 h after the procedure in the CIN group (P < 0.01). (3) Pearson correlation analysis showed that there was a positive correlation between urinary NGAL and SCr (r = 0.814, P < 0.01) and urinary KIM-1(r = 0.758, P < 0.01) in the CIN group. (4) ROC curve analysis showed that the AUC for urinary NGAL was 0.897. When the cut-off value of NGAL was set at 11.950 µg/L, the sensitivity and specificity for the diagnosis of CIN were 92.9% and 71.4%, respectively. The AUC for urinary KIM-1 was 0.839. With the cut-off value of urinary KIM-1 set as 4.595 µg/L, the diagnostic sensitivity and specificity for CIN were 85.7% and 71.4%, respectively. CONCLUSIONS Urinary NGAL serves as a good biomarker for early diagnosis of CIN suggesting acute kidney injury at 4 h post CAG and PCI. Urinary KIM-1 can reflect the change of renal function after contrast injection earlier than SCr and may also be a good biomarker for early diagnosis of CIN.
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Affiliation(s)
- Lei Wang
- Department of Cardiology,Xiangtan Central Hospital, Xiangtan 411100, China
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Carlsson AC, Calamia M, Risérus U, Larsson A, Helmersson-Karlqvist J, Lind L, Arnlöv J. Kidney injury molecule (KIM)-1 is associated with insulin resistance: results from two community-based studies of elderly individuals. Diabetes Res Clin Pract 2014; 103:516-21. [PMID: 24438875 DOI: 10.1016/j.diabres.2013.12.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 09/13/2013] [Accepted: 12/18/2013] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND OBJECTIVES Insulin resistance has been shown to be closely associated with glomerular filtration rate and urinary albumin/creatinine ratio, even prior to the development of diabetes. Urinary kidney injury molecule 1 (KIM-1) is a novel, highly specific marker of kidney tubular damage. The role of insulin resistance in the development of kidney tubular damage is not previously reported. Thus, we aimed to investigate the associations between insulin sensitivity (assessed by HOMA) and urinary KIM-1. DESIGN, SETTING, PARTICIPANTS AND MEASUREMENTS Two community-based cohorts of elderly individuals were investigated: Prospective Investigation of the vasculature in Uppsala seniors (PIVUS, n=701; mean age 75 years, 52% women); and Uppsala Longitudinal Study of adult men (ULSAM, n=533; mean age 78 years). RESULTS Lower insulin sensitivity was associated with higher urinary KIM-1 in both cohorts after adjustments for age, BMI, blood pressure, antihypertensive treatment, glomerular filtration rate, and urinary albumin-creatinine ratio (PIVUS: regression coefficient for 1-SD higher HOMA-IR 0.11, 95% CI 0.03-0.20, p=0.009, and ULSAM: 0.13, 95% CI 0.04-0.22, p=0.007). Results were similar in individuals without diabetes, with normal kidney function and normo-albuminuria. CONCLUSIONS Our findings in elderly individuals support the notion that the interplay between an impaired glucose metabolism and renal tubular damage is evident even prior to the development of diabetes and overt kidney disease.
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Affiliation(s)
- Axel C Carlsson
- Centre for Family Medicine, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden; Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden.
| | | | - Ulf Risérus
- Department of Public Health and Caring Sciences/Section of Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - Anders Larsson
- Department of Medical Sciences, Uppsala University Hospital, Uppsala, Sweden
| | | | - Lars Lind
- Department of Medical Sciences, Uppsala University Hospital, Uppsala, Sweden
| | - Johan Arnlöv
- Department of Medical Sciences, Molecular Epidemiology and Science for Life Laboratory, Uppsala University, Uppsala, Sweden; School of Health and Social Studies, Dalarna University, Falun, Sweden.
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Shi X, Zhang M, Liu F, Wang Z, Zhang L, Cheng H, Zhang S, Fei T, Guo M, Bian J, Wang Q, Ding G. Tim-1-Fc suppresses chronic cardiac allograft rejection and vasculopathy by reducing IL-17 production. Int J Clin Exp Pathol 2014; 7:509-520. [PMID: 24551271 PMCID: PMC3925895] [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] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 12/31/2013] [Indexed: 06/03/2023]
Abstract
Previously, we demonstrated that Tim-1-Fc prevents acute cardiac graft rejection by inhibiting Th1 response. In the present report, we tackled the impact of Tim-1-Fc on Th17 cells in a model of cardiac chronic rejection. Administration of Tim-1-Fc did not result in a detectable impact on innate immunity and regulatory T cells, while it provided protection for Bm12-derive cardiac grafts against chronic rejection in B6 recipients, as manifested by the reduction of inflammatory infiltration along with less severity of vasculopathy. Studies in T-bet(-/-) recipients by implanting Bm12-derived cardiac grafts further revealed that Tim-1-Fc significantly protected cardiac grafts from chronic rejection along with attenuated production of IL-17 producing T cells. Depletion of CD4 and CD8 T cells or blockade of IL-17 in T-bet(-/-) recipients demonstrated that Tim-1-Fc selectively suppresses Th17 differentiation along with attenuated IL-17 secretion. Together, our data suggest that Tim-1-Fc protects cardiac grafts from chronic rejection by suppressing CD4 Th17 development and functionality. Therefore, Tim-1-Fc might be a potential immunosuppressive agent in the setting of cardiac transplantation.
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Affiliation(s)
- Xiaoming Shi
- Institute of Organ Transplantation, Changzheng Hospital, Second Military Medical UniversityShanghai, China
| | - Mingjian Zhang
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical UniversityShanghai, China
| | - Fang Liu
- Institute of Organ Transplantation, Changzheng Hospital, Second Military Medical UniversityShanghai, China
| | - Zhengxing Wang
- Institute of Organ Transplantation, Changzheng Hospital, Second Military Medical UniversityShanghai, China
| | - Luding Zhang
- Institute of Organ Transplantation, Changzheng Hospital, Second Military Medical UniversityShanghai, China
| | - Haifei Cheng
- Department of Pharmacology, 411 Naval Medical HospitalShanghai, China
| | - Shu Zhang
- The Center for Biomedical Research, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan, China
| | - Teng Fei
- Institute of Organ Transplantation, Changzheng Hospital, Second Military Medical UniversityShanghai, China
| | - Meng Guo
- Institute of Organ Transplantation, Changzheng Hospital, Second Military Medical UniversityShanghai, China
| | - Jun Bian
- Department of Pharmacology, 411 Naval Medical HospitalShanghai, China
| | - Quanxing Wang
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical UniversityShanghai, China
| | - Guoshan Ding
- Institute of Organ Transplantation, Changzheng Hospital, Second Military Medical UniversityShanghai, China
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Shao X, Tian L, Xu W, Zhang Z, Wang C, Qi C, Ni Z, Mou S. Diagnostic value of urinary kidney injury molecule 1 for acute kidney injury: a meta-analysis. PLoS One 2014; 9:e84131. [PMID: 24404151 PMCID: PMC3880280 DOI: 10.1371/journal.pone.0084131] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Accepted: 11/12/2013] [Indexed: 12/02/2022] Open
Abstract
Background Urinary Kidney Injury Molecule 1 (KIM-1) is a proximal tubular injury biomarker for early detection of acute kidney injury (AKI), with variable performance characteristics depending on clinical and population settings. Methods Meta-analysis was performed to assess the diagnostic value of urinary KIM-1 in AKI. Relevant studies were searched from MEDLINE, EMBASE, Pubmed, Elsevier Science Direct, Scopus, Web of Science, Google Scholar and Cochrane Library. Meta-analysis methods were used to pool sensitivity and specificity and to construct summary receiver operating characteristic (SROC) curves. Results A total of 2979 patients from 11 eligible studies were enrolled in the analysis. Five prospective cohorts, two cross-sectional and four case-control studies were identified for meta-analysis. The estimated sensitivity of urinary KIM-1 for the diagnosis of AKI was 74.0% (95% CI, 61.0%–84.0%), and specificity was 86.0% (95% CI, 74.0%–93.0%). The SROC analysis showed an area under the curve of 0.86(0.83–0.89). Subgroup analysis suggested that population settings and detection time were the key factors affecting the efficiency of KIM-1 for AKI diagnosis. Limitation Various population settings, different definition of AKI and Serum creatinine level used as the standard might have influence on AKI diagnosis. The relatively small number of studies and heterogeneity between them also affected the evaluation. Conclusion Urinary KIM-1 may be a promising biomarker for early detection of AKI with considerable predictive value, especially for cardiac surgery patients, and its potential value needs to be validated in large studies and across a broader scope of clinical settings.
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Affiliation(s)
- Xinghua Shao
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Lei Tian
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Weijia Xu
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhen Zhang
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chunlin Wang
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chaojun Qi
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhaohui Ni
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shan Mou
- Department of Nephrology, Molecular Cell Lab for Kidney Disease, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- * E-mail:
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Bonventre JV. Kidney injury molecule-1: a translational journey. Trans Am Clin Climatol Assoc 2014; 125:293-299. [PMID: 25125746 PMCID: PMC4112686] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Kidney injury molecule-1 (KIM-1, also named TIM-1 and HAVCR-1) was identified as the most highly upregulated protein in the proximal tubule of the kidney after injury. This protein is present with injury in multiple species including man, and also after a large number of acute and chronic insults to the kidney. It is a type-1 membrane protein whose ectodomain is released into the lumen of the tubule. The ectodomain is heavily glycosylated and stable and appears in the urine after injury. It has been qualified by the United States Food and Drug Administration and the European Medicines Agency for preclinical assessment of nephrotoxicity and on a case-by-case basis for clinical evaluation. As a biomarker in humans, its utility has been demonstrated in acute and chronic injury and in renal cell carcinoma, a condition similar to injury, where there is dedifferentiation of the epithelial cell. KIM-1 is a phosphatidylserine receptor which recognizes apoptotic cells directing them to lysosomes. It also serves as a receptor for oxidized lipoproteins and hence is important for uptake of components of the tubular lumen which may be immunomodulatory and/or toxic to the cell. KIM-1 is unique in being the first molecule, not also present on myeloid cells, that transforms kidney proximal epithelial cells into semi-professional phagocytes. Data suggest that KIM-1 expression is protective during early injury, whereas in chronic disease states, prolonged KIM-1 expression may be maladaptive and may represent a target for therapy of chronic kidney disease.
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Affiliation(s)
- Joseph V. Bonventre
- Correspondence and reprint requests: Joseph V. Bonventre, MD, PhD,
Renal Division, Brigham and Women's Hospital, Harvard Institutes of Medicine, Room 576, Harvard Medical School, Boston, MA 02115.
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McWilliam SJ, Antoine DJ, Sabbisetti V, Pearce RE, Jorgensen AL, Lin Y, Leeder JS, Bonventre JV, Smyth RL, Pirmohamed M. Reference intervals for urinary renal injury biomarkers KIM-1 and NGAL in healthy children. Biomark Med 2014; 8:1189-97. [PMID: 24661102 PMCID: PMC4076175 DOI: 10.2217/bmm.14.36] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM The aim of this study was to establish reference intervals in healthy children for two novel urinary biomarkers of acute kidney injury, kidney injury molecule-1 (KIM-1) and neutrophil gelatinase-associated lipocalin (NGAL). MATERIALS & METHODS Urinary biomarkers were determined in samples from children in the UK (n = 120) and the USA (n = 171) using both Meso Scale Discovery (MSD) and Luminex-based analytical approaches. RESULTS 95% reference intervals for each biomarker in each cohort are presented and stratified by sex or ethnicity where necessary, and age-related variability is explored using quantile regression. We identified consistently higher NGAL concentrations in females than males (p < 0.0001), and lower KIM-1 concentrations in African-Americans than Caucasians (p = 0.02). KIM-1 demonstrated diurnal variation, with higher concentrations in the morning (p < 0.001). CONCLUSION This is the first report of reference intervals for KIM-1 and NGAL using two analytical methods in a healthy pediatric population in both UK and US-based populations.
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Affiliation(s)
- Stephen J McWilliam
- Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool, Merseyside, UK.
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