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Enoksen ITT, Rinde NB, Svistounov D, Norvik JV, Solbu MD, Eriksen BO, Melsom T. Validation of eGFR for Detecting Associations Between Serum Protein Biomarkers and Subsequent GFR Decline. J Am Soc Nephrol 2023; 34:1409-1420. [PMID: 37093083 PMCID: PMC10400103 DOI: 10.1681/asn.0000000000000147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 04/01/2023] [Indexed: 04/25/2023] Open
Abstract
SIGNIFICANCE STATEMENT eGFR from creatinine, cystatin C, or both has been primarily used in search of biomarkers for GFR decline. Whether the relationships between biomarkers and eGFR decline are similar to associations with measured GFR (mGFR) decline has not been investigated. This study revealed that some biomarkers showed statistically significant different associations with eGFR decline compared with mGFR decline, particularly for eGFR from cystatin C. The findings indicate that non-GFR-related factors, such as age, sex, and body mass index, influence the relationship between biomarkers and eGFR decline. Therefore, the results of biomarker studies using eGFR, particularly eGFRcys, should be interpreted with caution and perhaps validated with mGFR. BACKGROUND Several serum protein biomarkers have been proposed as risk factors for GFR decline using eGFR from creatinine or cystatin C. We investigated whether eGFR can be used as a surrogate end point for measured GFR (mGFR) when searching for biomarkers associated with GFR decline. METHODS In the Renal Iohexol Clearance Survey, GFR was measured with plasma iohexol clearance in 1627 individuals without diabetes, kidney, or cardiovascular disease at baseline. After 11 years of follow-up, 1409 participants had one or more follow-up GFR measurements. Using logistic regression and interval-censored Cox regression, we analyzed the association between baseline levels of 12 serum protein biomarkers with the risk of accelerated GFR decline and incident CKD for both mGFR and eGFR. RESULTS Several biomarkers exhibited different associations with eGFR decline compared with their association with mGFR decline. More biomarkers showed different associations with eGFRcys decline than with eGFRcre decline. Most of the different associations of eGFR decline versus mGFR decline remained statistically significant after adjustment for age, sex, and body mass index, but several were attenuated and not significant after adjusting for the corresponding baseline mGFR or eGFR. CONCLUSIONS In studies of some serum protein biomarkers, eGFR decline may not be an appropriate surrogate outcome for mGFR decline. Although the differences from mGFR decline are attenuated by adjustment for confounding factors in most cases, some persist. Therefore, proposed biomarkers from studies using eGFR should preferably be validated with mGFR.
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Affiliation(s)
- Inger T. T. Enoksen
- Metabolic and Renal Research Group, UiT– The Arctic University of Norway, Tromsø, Norway
| | - Nikoline B. Rinde
- Metabolic and Renal Research Group, UiT– The Arctic University of Norway, Tromsø, Norway
| | - Dmitri Svistounov
- Metabolic and Renal Research Group, UiT– The Arctic University of Norway, Tromsø, Norway
| | - Jon V. Norvik
- Metabolic and Renal Research Group, UiT– The Arctic University of Norway, Tromsø, Norway
- Section of Nephrology, Clinic of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Marit D. Solbu
- Metabolic and Renal Research Group, UiT– The Arctic University of Norway, Tromsø, Norway
- Section of Nephrology, Clinic of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Bjørn O. Eriksen
- Metabolic and Renal Research Group, UiT– The Arctic University of Norway, Tromsø, Norway
- Section of Nephrology, Clinic of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
| | - Toralf Melsom
- Metabolic and Renal Research Group, UiT– The Arctic University of Norway, Tromsø, Norway
- Section of Nephrology, Clinic of Internal Medicine, University Hospital of North Norway, Tromsø, Norway
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Romejko K, Rymarz A, Szamotulska K, Bartoszewicz Z, Rozmyslowicz T, Niemczyk S. Resistin Contribution to Cardiovascular Risk in Chronic Kidney Disease Male Patients. Cells 2023; 12:cells12070999. [PMID: 37048072 PMCID: PMC10093733 DOI: 10.3390/cells12070999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
BACKGROUND Resistin is a molecule that belongs to the Resistin-Like Molecules family (RELMs), the group of proteins taking part in inflammatory processes. Increased resistin concentrations are observed in cardiovascular complications. Resistin contributes to the onset of atherosclerosis and intensifies the atherosclerotic processes. The aim of this study was to investigate the relationship between resistin and cardiovascular (CV) risk in men with chronic kidney disease (CKD) not treated with dialysis. MATERIALS AND METHODS One hundred and forty-two men were included in the study: 99 men with eGFR lower than 60 mL/min/1.73 m2 and 43 men with eGFR ≥ 60 mL/min/1.73 m2. CV risk was assessed. Serum resistin, tumor necrosis factor-alpha (TNF-alpha) and plasminogen activator inhibitor-1 (PAI-1) were measured among other biochemical parameters. RESULTS We observed that resistin concentrations were significantly higher in patients with CKD compared to individuals with eGFR ≥ 60 mL/min/1.73 m2 (p = 0.003). In CKD, after estimating the general linear model (GLM), we found that resistin is associated with CV risk (p = 0.026) and PAI-1 serum concentrations (0.012). The relationship of PAI-1 with resistin depends on the level of CV risk in CKD (p = 0.048). CONCLUSIONS Resistin concentrations rise with the increase of CV risk in CKD patients and thus resistin may contribute to the progression of cardiovascular risk in this group of patients. The relationship between resistin and CV risk is modified by PAI-1 concentrations.
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Affiliation(s)
- Katarzyna Romejko
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine-National Research Institute, 04-141 Warsaw, Poland
| | - Aleksandra Rymarz
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine-National Research Institute, 04-141 Warsaw, Poland
| | - Katarzyna Szamotulska
- Department of Epidemiology and Biostatistics, Institute of Mother and Child, 01-211 Warsaw, Poland
| | - Zbigniew Bartoszewicz
- Department of Internal Diseases and Endocrinology, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Tomasz Rozmyslowicz
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Stanisław Niemczyk
- Department of Internal Diseases, Nephrology and Dialysis, Military Institute of Medicine-National Research Institute, 04-141 Warsaw, Poland
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TNFR2 as a Potential Biomarker for Early Detection and Progression of CKD. Biomolecules 2023; 13:biom13030534. [PMID: 36979469 PMCID: PMC10046457 DOI: 10.3390/biom13030534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 02/27/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
The inflammatory pathway driven by TNF-α, through its receptors TNFR1 and TNFR2, is a common feature in the pathogenesis of chronic kidney disease (CKD), regardless of the initial disease cause. Evidence correlates the chronic inflammatory status with decreased renal function. Our aim was to evaluate the potential of TNF receptors as biomarkers for CKD diagnosis and staging, as well as their association with the progression of renal lesions, in rat models of early and moderate CKD. We analyzed the circulating levels of inflammatory molecules—tumor necrosis factor-alpha (TNF-α), tumor necrosis factor receptor 1 (TNFR1) and 2 (TNFR2) and tissue inhibitor of metalloproteinase-1 (TIMP-1)—and studied their associations with TNFR1 and TNFR2 renal expression, glomerular and tubulointerstitial lesions, and with biomarkers of renal (dys)function. An increase in all inflammatory markers was observed in moderate CKD, as compared to controls, but only circulating levels of both TNFR1 and TNFR2 were significantly increased in the early disease; TNFR2 serum levels were negatively correlated with eGFR. However, only TNFR2 renal expression increased with CKD severity and showed correlations with the score of mild and advanced tubular lesions. Our findings suggest that renal TNFR2 plays a role in CKD development, and has potential to be used as a biomarker for the early detection and progression of the disease. Still, the potential value of this biomarker in disease progression warrants further investigation.
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Lousa I, Reis F, Santos-Silva A, Belo L. The Signaling Pathway of TNF Receptors: Linking Animal Models of Renal Disease to Human CKD. Int J Mol Sci 2022; 23:ijms23063284. [PMID: 35328704 PMCID: PMC8950598 DOI: 10.3390/ijms23063284] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/15/2022] [Accepted: 03/16/2022] [Indexed: 11/25/2022] Open
Abstract
Chronic kidney disease (CKD) has been recognized as a global public health problem. Despite the current advances in medicine, CKD-associated morbidity and mortality remain unacceptably high. Several studies have highlighted the contribution of inflammation and inflammatory mediators to the development and/or progression of CKD, such as tumor necrosis factor (TNF)-related biomarkers. The inflammation pathway driven by TNF-α, through TNF receptors 1 (TNFR1) and 2 (TNFR2), involves important mediators in the pathogenesis of CKD. Circulating levels of TNFRs were associated with changes in other biomarkers of kidney function and injury, and were described as predictors of disease progression, cardiovascular morbidity, and mortality in several cohorts of patients. Experimental studies describe the possible downstream signaling pathways induced upon TNFR activation and the resulting biological responses. This review will focus on the available data on TNFR1 and TNFR2, and illustrates their contributions to the pathophysiology of kidney diseases, their cellular and molecular roles, as well as their potential as CKD biomarkers. The emerging evidence shows that TNF receptors could act as biomarkers of renal damage and as mediators of the disease. Furthermore, it has been suggested that these biomarkers could significantly improve the discrimination of clinical CKD prognostic models.
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Affiliation(s)
- Irina Lousa
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (I.L.); (A.S.-S.)
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Flávio Reis
- Institute of Pharmacology & Experimental Therapeutics & Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal;
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), 3000-075 Coimbra, Portugal
| | - Alice Santos-Silva
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (I.L.); (A.S.-S.)
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Luís Belo
- Associate Laboratory i4HB-Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (I.L.); (A.S.-S.)
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Correspondence:
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Distribution of estimated glomerular filtration rate and determinants of its age dependent loss in a German population-based study. Sci Rep 2021; 11:10165. [PMID: 33986324 PMCID: PMC8119940 DOI: 10.1038/s41598-021-89442-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 04/22/2021] [Indexed: 12/31/2022] Open
Abstract
Glomerular filtration rate (GFR) declines with age by approx. 1 ml/min/m2 per year beginning in the third decade of life. At 70 years of age > 40 ml/min/m2 of GFR will be lost. Thus, factors affecting loss of GFR have significant public health implications. Furthermore, the definition of chronic kidney disease based on GFR may not be appropriate for the elderly. We analyzed factors affecting absolute and relative change of eGFR over a 5 year period in 12,381 participants of the Gutenberg Health Study. We estimated GFR at baseline and after 5 years of follow-up by two different equations. Association with the decline of estimated GFR (eGFR) was assessed by multivariable regression analysis. We confirmed a median loss of eGFR per year of approx. 1 ml/min/m2. Aside from albuminuria systolic blood pressure was most strongly associated with faster decline of eGFR followed by echocardiographic evidence of left ventricular diastolic dysfunction and reduced ejection fraction. White blood cell count showed a moderate association with eGFR loss. Diastolic blood pressure, serum uric acid and serum albumin were associated with slower GFR decline in multivariable analysis. Sensitivity analysis with exclusion of individuals taking diuretics, antihypertensive, antidiabetic, or lipid lowering drugs confirmed these associations.
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Araújo LS, Torquato BGS, da Silva CA, Dos Reis Monteiro MLG, Dos Santos Martins ALM, da Silva MV, Dos Reis MA, Machado JR. Renal expression of cytokines and chemokines in diabetic nephropathy. BMC Nephrol 2020; 21:308. [PMID: 32723296 PMCID: PMC7389446 DOI: 10.1186/s12882-020-01960-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 07/17/2020] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Diabetic nephropathy (DN) is the leading cause of end-stage renal disease worldwide. Inflammatory mediators have been implicated in the pathogenesis of DN, thus considered an inflammatory disease. However, further studies are required to assess the renal damage caused by the action of these molecules. Therefore, the objective of this study was to analyze the expression of cytokines and chemokines in renal biopsies from patients with DN and to correlate it with interstitial inflammation and decreased renal function. METHODS Forty-four native renal biopsies from patients with DN and 23 control cases were selected. In situ expression of eotaxin, MIP-1α (macrophage inflammatory protein-1α), IL-8 (interleukin-8), IL-4, IL-10, TNF-α (tumor necrosis factor-α), TNFR1 (tumor necrosis factor receptor-1), IL-1β, and IL-6 were evaluated by immunohistochemistry. RESULTS The DN group showed a significant increase in IL-6 (p < 0.0001), IL-1β (p < 0.0001), IL-4 (p < 0.0001) and eotaxin (p = 0.0012) expression, and a decrease in TNFR1 (p = 0.0107) and IL-8 (p = 0.0262) expression compared to the control group. However, there were no significant differences in IL-10 (p = 0.4951), TNF-α (p = 0.7534), and MIP-1α (p = 0.3816) expression among groups. Regarding interstitial inflammation, there was a significant increase in IL-6 in scores 0 and 1 compared to score 2 (p = 0.0035), in IL-10 in score 2 compared to score 0 (p = 0.0479), and in eotaxin in score 2 compared to scores 0 and 1 (p < 0.0001), whereas IL-8 (p = 0.0513) and MIP-1α (p = 0.1801) showed no significant differences. There was a tendency for negative correlation between eotaxin and estimated glomerular filtration rate (eGFR) (p = 0.0566). CONCLUSIONS Our results indicated an increased in situ production of cytokines and chemokines in DN, including IL-6, IL-1β, IL-4, and eotaxin. It was observed that, possibly, eotaxin may have an important role in the progression of interstitial inflammation in DN and in eGFR decrease of these patients.
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Affiliation(s)
- Liliane Silvano Araújo
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Praça Manoel Terra, 330, Nossa Senhora da Abadia, Uberaba, Minas Gerais, 38025-015, Brazil
| | - Bianca Gonçalves Silva Torquato
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Praça Manoel Terra, 330, Nossa Senhora da Abadia, Uberaba, Minas Gerais, 38025-015, Brazil
| | - Crislaine Aparecida da Silva
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Praça Manoel Terra, 330, Nossa Senhora da Abadia, Uberaba, Minas Gerais, 38025-015, Brazil
| | - Maria Luíza Gonçalves Dos Reis Monteiro
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Praça Manoel Terra, 330, Nossa Senhora da Abadia, Uberaba, Minas Gerais, 38025-015, Brazil
| | - Ana Luisa Monteiro Dos Santos Martins
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Praça Manoel Terra, 330, Nossa Senhora da Abadia, Uberaba, Minas Gerais, 38025-015, Brazil
| | - Marcos Vinícius da Silva
- Department of Microbiology, Immunology and Parasitology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Av. Getúlio Guaritá, n° 130, Nossa Senhora da Abadia, Uberaba, Minas Gerais, 38025-440, Brazil
| | - Marlene Antônia Dos Reis
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Praça Manoel Terra, 330, Nossa Senhora da Abadia, Uberaba, Minas Gerais, 38025-015, Brazil
| | - Juliana Reis Machado
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Praça Manoel Terra, 330, Nossa Senhora da Abadia, Uberaba, Minas Gerais, 38025-015, Brazil.
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Araújo LS, da Silva MV, da Silva CA, Borges MDF, Palhares HMDC, Rocha LP, Corrêa RRM, Rodrigues Júnior V, dos Reis MA, Machado JR. Analysis of serum inflammatory mediators in type 2 diabetic patients and their influence on renal function. PLoS One 2020; 15:e0229765. [PMID: 32130282 PMCID: PMC7055870 DOI: 10.1371/journal.pone.0229765] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 02/14/2020] [Indexed: 02/07/2023] Open
Abstract
Aim To evaluate the serum concentrations of inflammatory mediators in patients with type 2 diabetes mellitus (T2DM) with or without renal alteration (RA) function. Methods Serum samples from 76 patients with T2DM and 24 healthy individuals were selected. Patients with T2DM were divided into two groups according to eGFR (> or < 60mL/min/1.73m2). Cytokines, chemokines and adipokines levels were evaluated using the Multiplex immunoassay and ELISA. Results TNFR1 and leptin were higher in the T2DM group with RA than in the T2DM group without RA and control group. All patients with T2DM showed increased resistin, IL-8, and MIP-1α compared to the control group. Adiponectin were higher and IL-4 decreased in the T2DM group with RA compared to the control group. eGFR positively correlated with IL-4 and negatively with TNFR1, TNFR2, and leptin in patients with T2DM. In the T2DM group with RA, eGFR was negatively correlated with TNFR1 and resistin. TNFR1 was positively correlated with resistin and leptin, as well as resistin with IL-8 and leptin. Conclusion Increased levels of TNFR1, adipokines, chemokines and decrease of IL-4 play important role in the inflammatory process developed in T2DM and decreased renal function. We also suggest that TNFR1 is a strong predictor of renal dysfunction in patients with T2DM.
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Affiliation(s)
- Liliane Silvano Araújo
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Marcos Vinícius da Silva
- Department of Microbiology, Immunology and Parasitology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Crislaine Aparecida da Silva
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Maria de Fátima Borges
- Discipline of Endocrinology and Metabolism, Health Sciences Institute of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Heloísa Marcelina da Cunha Palhares
- Discipline of Endocrinology and Metabolism, Health Sciences Institute of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Laura Penna Rocha
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Rosana Rosa Miranda Corrêa
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Virmondes Rodrigues Júnior
- Department of Microbiology, Immunology and Parasitology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Marlene Antônia dos Reis
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Juliana Reis Machado
- Discipline of General Pathology, Institute of Biological and Natural Sciences of Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
- * E-mail:
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Bidin MZ, Shah AM, Stanslas J, Seong CLT. Blood and urine biomarkers in chronic kidney disease: An update. Clin Chim Acta 2019; 495:239-250. [PMID: 31009602 DOI: 10.1016/j.cca.2019.04.069] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/17/2019] [Accepted: 04/17/2019] [Indexed: 01/11/2023]
Abstract
INTRODUCTION Chronic kidney disease (CKD) is a silent disease. Most CKD patients are unaware of their condition during the early stages of the disease which poses a challenge for healthcare professionals to institute treatment or start prevention. The trouble with the diagnosis of CKD is that in most parts of the world, it is still diagnosed based on measurements of serum creatinine and corresponding calculations of eGFR. There are controversies with the current staging system, especially in the methodology to diagnose and prognosticate CKD. OBJECTIVE The aim of this review is to examine studies that focused on the different types of samples which may serve as a good and promising biomarker for early diagnosis of CKD or to detect rapidly declining renal function among CKD patient. METHOD The review of international literature was made on paper and electronic databases Nature, PubMed, Springer Link and Science Direct. The Scopus index was used to verify the scientific relevance of the papers. Publications were selected based on the inclusion and exclusion criteria. RESULT 63 publications were found to be compatible with the study objectives. Several biomarkers of interest with different sample types were taken for comparison. CONCLUSION Biomarkers from urine samples yield more significant outcome as compare to biomarkers from blood samples. But, validation and confirmation with a different type of study designed on a larger population is needed. More comparison studies on different types of samples are needed to further illuminate which biomarker is the better tool for the diagnosis and prognosis of CKD.
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Affiliation(s)
- Mohammad Zulkarnain Bidin
- Nephrology Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.
| | - Anim Md Shah
- Nephrology Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia; Nephrology Department, Serdang Hospital, Selangor, Malaysia
| | - J Stanslas
- Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Christopher Lim Thiam Seong
- Nephrology Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia; Nephrology Department, Serdang Hospital, Selangor, Malaysia.
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Wang F, Sun L, Sun Q, Liang L, Gao X, Li R, Pan A, Li H, Deng Y, Hu FB, Wu J, Zeng R, Lin X. Associations of Plasma Amino Acid and Acylcarnitine Profiles with Incident Reduced Glomerular Filtration Rate. Clin J Am Soc Nephrol 2018; 13:560-568. [PMID: 29519950 PMCID: PMC5969460 DOI: 10.2215/cjn.07650717] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 01/03/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND AND OBJECTIVES Metabolomics is instrumental in identifying novel biomarkers of kidney function to aid in the prevention and management of CKD. However, data linking the metabolome to incident eGFR are sparse, particularly in Asian populations with different genetic backgrounds and environmental exposures. Therefore, we aimed to investigate the associations of amino acid and acylcarnitine profiles with change in eGFR in a Chinese cohort. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS This study included 1765 community-living Chinese adults aged 50-70 years with baseline eGFR≥60 ml/min per 1.73 m2. At baseline, 22 amino acids and 34 acylcarnitines in plasma were quantified by gas or liquid chromatography coupled with mass spectrometry. Annual rate of change in eGFR was calculated, and incident eGFR decline was defined as eGFR<60 ml/min per 1.73 m2 by the end of 6 years of follow-up. RESULTS The mean (SD) unadjusted annual change in eGFR was 2.2±2.0 ml/min per 1.73 m2 and the incidence of reduced eGFR was 16%. After Bonferroni correction, 13 of 56 metabolites were significantly associated with annual eGFR change. After multivariable adjustment of baseline covariates, including baseline eGFR, seven of the 13 metabolites, including cysteine, long-chain acylcarnitines (C14:1OH, C18, C18:2, and C20:4), and other acylcarnitines (C3DC and C10), were significantly associated with incident reduced eGFR (relative risks ranged from 1.16 to 1.25 per SD increment of metabolites; P<3.8E-03 after Bonferroni correction of multiple testing of the 13 metabolites). Moreover, principal component analysis identified two factors, consisting of cysteine and long-chain acylcarnitines, respectively, that were associated with incident reduced eGFR. CONCLUSIONS Elevated plasma levels of cysteine and a panel of acylcarnitines were associated with a higher incidence of reduced eGFR in Chinese adults, independent of baseline eGFR and other conventional risk factors.
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Affiliation(s)
- Feijie Wang
- Due to the number of contributing authors, the affiliations are provided in the Supplemental Material
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Barr ELM, Barzi F, Hughes JT, Jerums G, Hoy WE, O'Dea K, Jones GRD, Lawton PD, Brown ADH, Thomas M, Ekinci EI, Sinha A, Cass A, MacIsaac RJ, Maple-Brown LJ. High Baseline Levels of Tumor Necrosis Factor Receptor 1 Are Associated With Progression of Kidney Disease in Indigenous Australians With Diabetes: The eGFR Follow-up Study. Diabetes Care 2018; 41:739-747. [PMID: 29367427 DOI: 10.2337/dc17-1919] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 12/15/2017] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To examine the association between soluble tumor necrosis factor receptor 1 (sTNFR1) levels and kidney disease progression in Indigenous Australians at high risk of kidney disease. RESEARCH DESIGN AND METHODS This longitudinal observational study examined participants aged ≥18 years recruited from >20 sites across diabetes and/or kidney function strata. Baseline measures included sTNFR1, serum creatinine, urine albumin-to-creatinine ratio (uACR), HbA1c, C-reactive protein (CRP), waist-to-hip ratio, systolic blood pressure, and medical history. Linear regression was used to estimate annual change in estimated glomerular filtration rate (eGFR) for increasing sTNFR1, and Cox proportional hazards were used to estimate the hazard ratio (HR) and 95% CI for developing a combined renal outcome (first of a ≥30% decline in eGFR with a follow-up eGFR <60 mL/min/1.73 m2, progression to renal replacement therapy, or renal death) for increasing sTNFR1. RESULTS Over a median of 3 years, participants with diabetes (n = 194) in the highest compared with the lowest quartile of sTNFR1 experienced significantly greater eGFR decline (-4.22 mL/min/1.73 m2/year [95% CI -7.06 to -1.38]; P = 0.004), independent of baseline age, sex, eGFR, and uACR. The adjusted HR (95% CI) for participants with diabetes per doubling of sTNFR1 for the combined renal outcome (n = 32) was 3.8 (1.1-12.8; P = 0.03). No association between sTNFR1 and either renal outcome was observed for those without diabetes (n = 259). CONCLUSIONS sTNFR1 is associated with greater kidney disease progression independent of albuminuria and eGFR in Indigenous Australians with diabetes. Further research is required to assess whether TNFR1 operates independently of other metabolic factors associated with kidney disease progression.
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Affiliation(s)
- Elizabeth L M Barr
- Menzies School of Health Research, Darwin, Northern Territory, Australia .,Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Federica Barzi
- Menzies School of Health Research, Darwin, Northern Territory, Australia
| | - Jaquelyne T Hughes
- Menzies School of Health Research, Darwin, Northern Territory, Australia.,Royal Darwin Hospital, Darwin, Northern Territory, Australia
| | - George Jerums
- Department of Endocrinology, Austin Health, Melbourne, Victoria, Australia.,Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Wendy E Hoy
- The University of Queensland, Brisbane, Queensland, Australia
| | - Kerin O'Dea
- Menzies School of Health Research, Darwin, Northern Territory, Australia.,Nutrition and Population Health, University of South Australia, Adelaide, South Australia, Australia
| | - Graham R D Jones
- SydPath, St Vincent's Hospital Sydney, Sydney, New South Wales, Australia.,Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Paul D Lawton
- Menzies School of Health Research, Darwin, Northern Territory, Australia
| | - Alex D H Brown
- Aboriginal Health, Sansom Institute for Health Research, University of South Australia, Adelaide, South Australia, Australia.,Indigenous Health, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Mark Thomas
- Royal Perth Hospital, Perth, Western Australia, Australia
| | - Elif I Ekinci
- Menzies School of Health Research, Darwin, Northern Territory, Australia.,Department of Endocrinology, Austin Health, Melbourne, Victoria, Australia.,Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - Ashim Sinha
- Diabetes and Endocrinology, Cairns Base Hospital, Cairns, Queensland, Australia
| | - Alan Cass
- Menzies School of Health Research, Darwin, Northern Territory, Australia
| | - Richard J MacIsaac
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia.,Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
| | - Louise J Maple-Brown
- Menzies School of Health Research, Darwin, Northern Territory, Australia.,Royal Darwin Hospital, Darwin, Northern Territory, Australia
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11
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Carlsson AC, Ingelsson E, Sundström J, Jesus Carrero J, Gustafsson S, Feldreich T, Stenemo M, Larsson A, Lind L, Ärnlöv J. Use of Proteomics To Investigate Kidney Function Decline over 5 Years. Clin J Am Soc Nephrol 2017; 12:1226-1235. [PMID: 28784837 PMCID: PMC5544512 DOI: 10.2215/cjn.08780816] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 04/17/2017] [Indexed: 01/12/2023]
Abstract
BACKGROUND AND OBJECTIVES Using a discovery/replication approach, we investigated associations between a multiplex panel of 80 circulating proteins associated with cardiovascular pathology or inflammation, and eGFR decline per year and CKD incidence. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We used two cohorts, the Prospective Investigation of the Vasculature in Uppsala Seniors Study (PIVUS; n=687, mean age of 70 years, 51% women) and the Uppsala Longitudinal Study of Adult Men (ULSAM; n=360 men, mean age of 78 years), with 5-year follow-up data on eGFR. There were 231 and 206 incident cases of CKD during follow-up in the PIVUS and ULSAM studies, respectively. Proteomic profiling of 80 proteins was assessed by a multiplex assay (proximity extension assay). The assay uses two antibodies for each protein and a PCR step to achieve a high-specific binding and the possibility to measure multiple proteins in parallel, but gives no absolute concentrations. RESULTS In the discovery cohort from the PIVUS Study, 28 plasma proteins were significantly associated with eGFR decline per year, taking into account the multiple testing. Twenty of these proteins were significantly associated with eGFR decline per year in the replication cohort from the ULSAM Study after adjustment for age, sex, cardiovascular risk factors, medications, and urinary albumin-to-creatinine ratio (in order of significance: TNF-related apoptosis-inducing ligand receptor 2*, CD40L receptor, TNF receptor 1*, placenta growth factor*, thrombomodulin*, urokinase plasminogen activator surface receptor*, growth/differentiation factor 15*, macrophage colony-stimulating factor 1, fatty acid-binding protein*, cathepsin D, resistin, kallikrein 11*, C-C motif chemokine 3, proteinase-activated receptor 1*, cathepsin L, chitinase 3-like protein 1, TNF receptor 2*, fibroblast growth factor 23*, monocyte chemotactic protein 1, and kallikrein 6). Moreover, 11 of the proteins predicted CKD incidence (marked with * above). No protein consistently predicted eGFR decline per year independently of baseline eGFR in both cohorts. CONCLUSIONS Several circulating proteins involved in phosphate homeostasis, inflammation, apoptosis, extracellular matrix remodeling, angiogenesis, and endothelial dysfunction were associated with worsening kidney function. Multiplex proteomics appears to be a promising way of discovering novel aspects of kidney disease pathology.
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Affiliation(s)
- Axel C. Carlsson
- Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden
- Department of Medical Sciences
| | - Erik Ingelsson
- Department of Medical Sciences
- Molecular Epidemiology and Science for Life Laboratory, and
- Department of Medicine, Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California
| | - Johan Sundström
- Department of Medical Sciences
- Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
| | - Juan Jesus Carrero
- Division of Renal Medicine, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden; and
| | | | - Tobias Feldreich
- Department of Medical Sciences
- School of Health and Social Sciences, Dalarna University, Falun, Sweden
| | | | | | | | - Johan Ärnlöv
- Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Huddinge, Sweden
- School of Health and Social Sciences, Dalarna University, Falun, Sweden
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12
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Hsu BG, Lee CJ, Yang CF, Chen YC, Wang JH. High serum resistin levels are associated with peripheral artery disease in the hypertensive patients. BMC Cardiovasc Disord 2017; 17:80. [PMID: 28298189 PMCID: PMC5353862 DOI: 10.1186/s12872-017-0517-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 03/08/2017] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Hypertension is a risk factor for peripheral arterial disease (PAD). Subjects with PAD are at increased risk of future cardiovascular (CV) events. Resistin is involved in the pathological processes of CV diseases. The aim of this study is to investigate whether resistin level is correlated with PAD in hypertensive patients. METHODS One hundred and twenty-four hypertensive patients were enrolled in this study. Ankle-brachial index (ABI) values were measured using the automated oscillometric method. An ABI value < 0.9 defined the low ABI group. Anthropometric analysis with waist circumference and body mass index, and fasting serum levels of blood urea nitrogen, creatinine, glucose, total cholesterol, triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, total calcium, phosphorus, and high-sensitivity C-reactive protein (hs-CRP) were measured using standard enzymatic automated methods. Serum levels of human resistin were determined using a commercially available enzyme immunoassay. RESULTS Eighteen hypertensive patients (14.5%) were included in the low ABI group. Hypertensive patients in the low ABI group were older (p = 0.043) and had higher serum creatinine (p < 0.001), high-sensitivity C-reactive protein (hs-CRP; p = 0.013), and resistin (p < 0.001) levels but a lower estimated glomerular filtration rate (p = 0.002) than patients in the normal ABI group. After the adjustment for factors that were significantly associated with PAD on multivariate logistic regression analysis, serum resistin (odds ratio [OR], 1.176; 95% confidence interval [CI], 1.028-1.345; p = 0.018) was also an independent predictor of PAD in hypertensive patients. CONCLUSIONS A high serum resistin level is an independent predictor of PAD in hypertensive patients.
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Affiliation(s)
- Bang-Gee Hsu
- Division of Nephrology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan.,School of Medicine, Tzu Chi University, Hualien, Taiwan
| | - Chung-Jen Lee
- Department of Nursing, Tzu Chi University of Science and Technology, Hualien, Taiwan
| | - Chiu-Fen Yang
- Division of Cardiology, Buddhist Tzu Chi General Hospital, No. 707, Section 3, Chung-Yang Road, Hualien, 97002, Taiwan
| | - Yu-Chih Chen
- Division of Cardiology, Buddhist Tzu Chi General Hospital, No. 707, Section 3, Chung-Yang Road, Hualien, 97002, Taiwan
| | - Ji-Hung Wang
- School of Medicine, Tzu Chi University, Hualien, Taiwan. .,Division of Cardiology, Buddhist Tzu Chi General Hospital, No. 707, Section 3, Chung-Yang Road, Hualien, 97002, Taiwan.
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