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Ding L, Hou Y, Liu J, Wang X, Wang Z, Ding W, Zhao K. Circulating Concentrations of advanced Glycation end Products, Carboxymethyl Lysine and Methylglyoxal are Associated With Renal Function in Individuals With Diabetes. J Ren Nutr 2024; 34:154-160. [PMID: 37802233 DOI: 10.1053/j.jrn.2023.09.005] [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: 07/13/2023] [Revised: 09/19/2023] [Accepted: 09/24/2023] [Indexed: 10/08/2023] Open
Abstract
OBJECTIVE Diabetic kidney disease (DKD) is one of the most severe chronic complications of diabetes and is associated with higher level of advanced glycation end products (AGEs). The aim of this study was to investigate the diagnostic potential of combined detection of multiple serum AGEs in diagnosing DKD. METHODS Serum AGEs, Nε-(carboxymethyl) lysine (CML), Nε-(carboxyethyl) lysine, and methylglyoxal (MGO) levels were measured by enzyme-linked immunosorbent assay in 176 individuals with type 2 diabetes. Participants were classified into normoalbuminuria, microalbuminuria, and macroalbuminuria group according to their urinary albumin to creatinine ratio (UACR). RESULTS Higher serum AGEs levels were found to be positively correlated with U-Alb, UACR, and blood urea nitrogen in the study of 176 individuals with type 2 diabetes. CML and MGO levels were positively correlated with U-Alb, UACR, blood urea nitrogen, Scr, and uric acid, and negatively correlated with estimated glomerular filtration rate (P < .05). Multivariate logistic regression analysis showed that elevated levels of AGEs, CML, and MGO were independent risk factors for the progression of DKD (odds ratio = 1.861, 1.016, 7.607, P < .01). The sensitivity, specificity, and area under receiver operating characteristic curve of combined detection of AGEs, MGO, and CML were higher than those of three individual detections (area under the curve = 0.952, 0.772, 0.868, 0905, respectively, P < .05). CONCLUSION The combined detection of AGEs, CML, and MGO may improve the reliability of early diagnosis of DKD.
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Affiliation(s)
- Lina Ding
- Shandong Institute of Endocrine & Metabolic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China; Jinan Key Laboratory of Translational Medicine on Metabolic Diseases, Jinan, China
| | - Yanli Hou
- Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Junjun Liu
- Shandong Institute of Endocrine & Metabolic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Xiaolei Wang
- Shandong Institute of Endocrine & Metabolic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China; Jinan Key Laboratory of Translational Medicine on Metabolic Diseases, Jinan, China
| | - Zhibin Wang
- Shandong Institute of Endocrine & Metabolic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Wenyu Ding
- Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China.
| | - Ke Zhao
- Shandong Institute of Endocrine & Metabolic Diseases, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China; Jinan Key Laboratory of Translational Medicine on Metabolic Diseases, Jinan, China; Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China.
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Zgutka K, Tkacz M, Tomasiak P, Tarnowski M. A Role for Advanced Glycation End Products in Molecular Ageing. Int J Mol Sci 2023; 24:9881. [PMID: 37373042 PMCID: PMC10298716 DOI: 10.3390/ijms24129881] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/02/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Ageing is a composite process that involves numerous changes at the cellular, tissue, organ and whole-body levels. These changes result in decreased functioning of the organism and the development of certain conditions, which ultimately lead to an increased risk of death. Advanced glycation end products (AGEs) are a family of compounds with a diverse chemical nature. They are the products of non-enzymatic reactions between reducing sugars and proteins, lipids or nucleic acids and are synthesised in high amounts in both physiological and pathological conditions. Accumulation of these molecules increases the level of damage to tissue/organs structures (immune elements, connective tissue, brain, pancreatic beta cells, nephrons, and muscles), which consequently triggers the development of age-related diseases, such as diabetes mellitus, neurodegeneration, and cardiovascular and kidney disorders. Irrespective of the role of AGEs in the initiation or progression of chronic disorders, a reduction in their levels would certainly provide health benefits. In this review, we provide an overview of the role of AGEs in these areas. Moreover, we provide examples of lifestyle interventions, such as caloric restriction or physical activities, that may modulate AGE formation and accumulation and help to promote healthy ageing.
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Affiliation(s)
- Katarzyna Zgutka
- Department of Physiology in Health Sciences, Faculty of Health Sciences, Pomeranian Medical University, Żołnierska 54, 70-210 Szczecin, Poland
| | - Marta Tkacz
- Department of Physiology in Health Sciences, Faculty of Health Sciences, Pomeranian Medical University, Żołnierska 54, 70-210 Szczecin, Poland
| | - Patrycja Tomasiak
- Institute of Physical Culture Sciences, University of Szczecin, 70-453 Szczecin, Poland
| | - Maciej Tarnowski
- Department of Physiology in Health Sciences, Faculty of Health Sciences, Pomeranian Medical University, Żołnierska 54, 70-210 Szczecin, Poland
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3
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Reynaert NL, Vanfleteren LEGW, Perkins TN. The AGE-RAGE Axis and the Pathophysiology of Multimorbidity in COPD. J Clin Med 2023; 12:jcm12103366. [PMID: 37240472 DOI: 10.3390/jcm12103366] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/24/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a disease of the airways and lungs due to an enhanced inflammatory response, commonly caused by cigarette smoking. Patients with COPD are often multimorbid, as they commonly suffer from multiple chronic (inflammatory) conditions. This intensifies the burden of individual diseases, negatively affects quality of life, and complicates disease management. COPD and comorbidities share genetic and lifestyle-related risk factors and pathobiological mechanisms, including chronic inflammation and oxidative stress. The receptor for advanced glycation end products (RAGE) is an important driver of chronic inflammation. Advanced glycation end products (AGEs) are RAGE ligands that accumulate due to aging, inflammation, oxidative stress, and carbohydrate metabolism. AGEs cause further inflammation and oxidative stress through RAGE, but also through RAGE-independent mechanisms. This review describes the complexity of RAGE signaling and the causes of AGE accumulation, followed by a comprehensive overview of alterations reported on AGEs and RAGE in COPD and in important co-morbidities. Furthermore, it describes the mechanisms by which AGEs and RAGE contribute to the pathophysiology of individual disease conditions and how they execute crosstalk between organ systems. A section on therapeutic strategies that target AGEs and RAGE and could alleviate patients from multimorbid conditions using single therapeutics concludes this review.
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Affiliation(s)
- Niki L Reynaert
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, 6229 ER Maastricht, The Netherlands
| | - Lowie E G W Vanfleteren
- COPD Center, Department of Respiratory Medicine and Allergology, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 405 30 Gothenburg, Sweden
| | - Timothy N Perkins
- Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
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Advanced Glycation End Products (AGEs) and Chronic Kidney Disease: Does the Modern Diet AGE the Kidney? Nutrients 2022; 14:nu14132675. [PMID: 35807857 PMCID: PMC9268915 DOI: 10.3390/nu14132675] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 12/13/2022] Open
Abstract
Since the 1980s, chronic kidney disease (CKD) affecting all ages has increased by almost 25%. This increase may be partially attributable to lifestyle changes and increased global consumption of a “western” diet, which is typically energy dense, low in fruits and vegetables, and high in animal protein and ultra-processed foods. These modern food trends have led to an increase in the consumption of advanced glycation end products (AGEs) in conjunction with increased metabolic dysfunction, obesity and diabetes, which facilitates production of endogenous AGEs within the body. When in excess, AGEs can be pathological via both receptor-mediated and non-receptor-mediated pathways. The kidney, as a major site for AGE clearance, is particularly vulnerable to AGE-mediated damage and increases in circulating AGEs align with risk of CKD and all-cause mortality. Furthermore, individuals with significant loss of renal function show increased AGE burden, particularly with uraemia, and there is some evidence that AGE lowering via diet or pharmacological inhibition may be beneficial for CKD. This review discusses the pathways that drive AGE formation and regulation within the body. This includes AGE receptor interactions and pathways of AGE-mediated pathology with a focus on the contribution of diet on endogenous AGE production and dietary AGE consumption to these processes. We then analyse the contribution of AGEs to kidney disease, the evidence for dietary AGEs and endogenously produced AGEs in driving pathogenesis in diabetic and non-diabetic kidney disease and the potential for AGE targeted therapies in kidney disease.
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Laget J, Duranton F, Argilés À, Gayrard N. Renal insufficiency and chronic kidney disease – Promotor or consequence of pathological post-translational modifications. Mol Aspects Med 2022; 86:101082. [DOI: 10.1016/j.mam.2022.101082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/27/2022] [Accepted: 02/03/2022] [Indexed: 12/12/2022]
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Luketin M, Mizdrak M, Boric-Skaro D, Martinovic D, Tokic D, Vilovic M, Supe-Domic D, Ticinovic Kurir T, Bozic J. Plasma Catestatin Levels and Advanced Glycation End Products in Patients on Hemodialysis. Biomolecules 2021; 11:biom11030456. [PMID: 33803864 PMCID: PMC8003327 DOI: 10.3390/biom11030456] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/11/2021] [Accepted: 03/17/2021] [Indexed: 02/07/2023] Open
Abstract
Catestatin (CST) is a pleiotropic peptide involved in cardiovascular protection with its antihypertensive and angiogenic effects. Considering that patients with end-stage renal disease (ESRD) who are undergoing hemodialysis (HD) are associated with higher cardiovascular risk, the aim of this study was to investigate plasma CST levels in HD patients, compare them to healthy controls and evaluate possible CST associations with advanced glycation end products (AGEs) and laboratory, anthropometric and clinical parameters. The study included 91 patients on HD and 70 healthy controls. Plasma CST levels were determined by an enzyme-linked immunosorbent assay in a commercially available diagnostic kit, while AGEs were determined using skin autofluorescence. Plasma CST levels were significantly higher in the HD group compared to the controls (32.85 ± 20.18 vs. 5.39 ± 1.24 ng/mL, p < 0.001) and there was a significant positive correlation between CST and AGEs (r = 0.492, p < 0.001). Furthermore, there was a significant positive correlation between plasma CST levels with both the Dialysis Malnutrition Score (r = 0.295, p = 0.004) and Malnutrition-Inflammation Score (r = 0.290, p = 0.005). These results suggest that CST could be playing a role in the complex pathophysiology of ESRD/HD and that it could affect the higher cardiovascular risk of patients on HD.
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Affiliation(s)
- Mirko Luketin
- Department of Nephrology and Dialysis, University Hospital of Split, 21000 Split, Croatia; (M.L.); (M.M.); (D.B.-S.)
| | - Maja Mizdrak
- Department of Nephrology and Dialysis, University Hospital of Split, 21000 Split, Croatia; (M.L.); (M.M.); (D.B.-S.)
| | - Dijana Boric-Skaro
- Department of Nephrology and Dialysis, University Hospital of Split, 21000 Split, Croatia; (M.L.); (M.M.); (D.B.-S.)
| | - Dinko Martinovic
- Department of Pathophysiology, University of Split School of Medicine, 21000 Split, Croatia; (D.M.); (M.V.); (T.T.K.)
| | - Daria Tokic
- Department of Anesthesiology and Intensive care, University Hospital of Split, 21000 Split, Croatia;
| | - Marino Vilovic
- Department of Pathophysiology, University of Split School of Medicine, 21000 Split, Croatia; (D.M.); (M.V.); (T.T.K.)
| | - Daniela Supe-Domic
- Department of Health Studies, University of Split, Split, Croatia, 21000 Split, Croatia;
| | - Tina Ticinovic Kurir
- Department of Pathophysiology, University of Split School of Medicine, 21000 Split, Croatia; (D.M.); (M.V.); (T.T.K.)
| | - Josko Bozic
- Department of Pathophysiology, University of Split School of Medicine, 21000 Split, Croatia; (D.M.); (M.V.); (T.T.K.)
- Correspondence: ; Tel.: +385-21-557-871; Fax: +385-21-557-905
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Gomes Kjerulf D, Wang S, Omer M, Pathak A, Subramanian S, Han CY, Tang C, den Hartigh LJ, Shao B, Chait A. Glycation of HDL blunts its anti-inflammatory and cholesterol efflux capacities in vitro, but has no effect in poorly controlled type 1 diabetes subjects. J Diabetes Complications 2020; 34:107693. [PMID: 32900591 PMCID: PMC7669727 DOI: 10.1016/j.jdiacomp.2020.107693] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND High-density lipoproteins (HDL) modified by glycation have been reported to be dysfunctional. Little is known regarding the anti-inflammatory effects on adipocytes of glycated HDL. AIMS We tested whether modification of HDL in vitro by glycolaldehyde (GAD), malondialdehyde (MDA) or glucose affected HDL's anti-inflammatory properties and ability to promote cholesterol efflux. To determine whether similar changes occur in vivo, we examined modifications of apolipoprotein A1 (APOA1) and APOA2 and anti-inflammatory and cholesterol efflux properties of HDL isolated from subjects with type 1 diabetes in poor glycemic control. RESULTS In vitro modification with both GAD and MDA blunted HDL's ability to inhibit palmitate-induced inflammation and cholesterol efflux in adipocytes. Modification of HDL by glucose had little impact on HDL function, like the response using HDL isolated from subjects with diabetes. Mass spectrophotometric analysis revealed that lysine residues in APOA1 and APOA2 of HDL modified by GAD and MDA in vitro differed from those modified by glucose, which resembled that seen with HDL from patients with type1 diabetes. CONCLUSIONS Modification of lysine residues in HDL by GAD and MDA in vitro does not mirror the HDL glycation in vivo in patients with diabetes, but resembles HDL modified in vitro by glucose.
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Affiliation(s)
- Diego Gomes Kjerulf
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Shari Wang
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Mohamed Omer
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Asha Pathak
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Savitha Subramanian
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Chang Yeop Han
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Chongren Tang
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Laura J den Hartigh
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Baohai Shao
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America
| | - Alan Chait
- Department of Medicine, Division of Metabolism, Endocrinology and Nutrition, Department of Medicine, University of Washington, Seattle, WA, United States of America.
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Ortillon J, Hézard N, Belmokhtar K, Kawecki C, Terryn C, Fritz G, Kauskot A, Schmidt AM, Rieu P, Nguyen P, Maurice P, Touré F. Receptor for Advanced Glycation End Products is Involved in Platelet Hyperactivation and Arterial Thrombosis during Chronic Kidney Disease. Thromb Haemost 2020; 120:1300-1312. [PMID: 32726852 DOI: 10.1055/s-0040-1714101] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Chronic kidney disease (CKD) is associated with a high cardiovascular mortality due to increased rates of vascular lesions and thrombotic events, as well as serum accumulation of uremic toxins. A subgroup of these toxins (advanced glycation end products [AGEs] and S100 proteins) can interact with the receptor for AGEs (RAGE). In this study, we analyzed the impact of CKD on platelet function and arterial thrombosis, and the potential role of RAGE in this process. METHODS Twelve weeks after induction of CKD in mice, platelet function and time to complete carotid artery occlusion were analyzed in four groups of animals (sham-operated, CKD, apolipoprotein E [Apoe]-/-, and Apoe-/-/Ager-/- mice). RESULTS Analysis of platelet function from whole blood and platelet-rich plasma showed hyperactivation of platelets only in CKD Apoe-/- mice. There was no difference when experiments were done on washed platelets. However, preincubation of such platelets with AGEs or S100 proteins induced RAGE-mediated platelet hyperactivation. In vivo, CKD significantly reduced carotid occlusion times of Apoe-/- mice (9.2 ± 1.1 vs. 11.1 ± 0.6 minutes for sham, p < 0.01). In contrast, CKD had no effect on occlusion times in Apoe-/-/Ager-/- mice. Moreover, carotid occlusion in Apoe-/- CKD mice occurred significantly faster than in Apoe-/-/Ager-/- CKD mice (p < 0.0001). CONCLUSION Our results show that CKD induces platelet hyperactivation, accelerates thrombus formation in a murine model of arterial thrombosis, and that RAGE deletion has a protective role. We propose that RAGE ligands binding to RAGE is involved in CKD-induced arterial thrombosis.
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Affiliation(s)
- Jérémy Ortillon
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling," Université de Reims Champagne Ardenne, Reims, France
| | - Nathalie Hézard
- Hémostase et Remodelage Vasculaire Post-Ischémique, Laboratoire d'Hématologie, Faculté de Médecine & CHU Reims, Hôpital Robert Debré, Reims, France
| | - Karim Belmokhtar
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling," Université de Reims Champagne Ardenne, Reims, France
| | - Charlotte Kawecki
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling," Université de Reims Champagne Ardenne, Reims, France
| | - Christine Terryn
- PICT Platform, Université de Reims Champagne Ardenne, Reims, France
| | - Guenter Fritz
- Institute of Neuropathology, Neurozentrum, University of Freiburg, Freiburg, Germany
| | - Alexandre Kauskot
- HITh, UMR_S 1176, INSERM Université Paris-Sud, Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Ann Marie Schmidt
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, New York University School of Medicine, New York, New York, United States
| | - Philippe Rieu
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling," Université de Reims Champagne Ardenne, Reims, France.,Division of Nephrology, CHU Reims, Reims, France
| | - Philippe Nguyen
- Hémostase et Remodelage Vasculaire Post-Ischémique, Laboratoire d'Hématologie, Faculté de Médecine & CHU Reims, Hôpital Robert Debré, Reims, France
| | - Pascal Maurice
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling," Université de Reims Champagne Ardenne, Reims, France
| | - Fatouma Touré
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling," Université de Reims Champagne Ardenne, Reims, France.,Division of Nephrology, CHU Limoges, Limoges, France
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Nierenberg JL, He J, Li C, Gu X, Shi M, Razavi AC, Mi X, Li S, Bazzano LA, Anderson AH, He H, Chen W, Kinchen JM, Rebholz CM, Coresh J, Levey AS, Inker LA, Shlipak M, Kelly TN. Novel associations between blood metabolites and kidney function among Bogalusa Heart Study and Multi-Ethnic Study of Atherosclerosis participants. Metabolomics 2019; 15:149. [PMID: 31720858 PMCID: PMC7021455 DOI: 10.1007/s11306-019-1613-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 11/08/2019] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Chronic kidney disease (CKD) is a major public health challenge given its high global prevalence and associated risks of cardiovascular disease and progression to end stage renal disease. Although it is known that numerous metabolic changes occur in CKD patients, identifying novel metabolite associations with kidney function may enhance our understanding of the physiologic pathways relating to CKD. OBJECTIVES The objective of this study was to elucidate novel metabolite associations with kidney function among participants of two community-based cohorts with carefully ascertained metabolomics, kidney function, and covariate data. METHODS Untargeted ultrahigh-performance liquid chromatography-tandem mass spectrometry was used to detect and quantify blood metabolites. We used multivariate adjusted linear regression to examine associations between single metabolites and creatinine-based estimated glomerular filtration rate (eGFRcr) among 1243 Bogalusa Heart Study (BHS) participants (median eGFRcr: 94.4, 5th-95th percentile: 66.0-119.6 mL/min/1.73 m2). Replication, determined by statistical significance and consistent effect direction, was tested using gold standard measured glomerular filtration rate (mGFR) among 260 Multi-Ethnic Study of Atherosclerosis (MESA) participants (median mGFR: 72.0, 5th-95th percentile: 43.5-105.0 mL/min/1.73 m2). All analyses used Bonferroni-corrected alpha thresholds. RESULTS Fifty-one novel metabolite associations with kidney function were identified, including 12 from previously unrelated sub-pathways: N6-carboxymethyllysine, gulonate, quinolinate, gamma-CEHC-glucuronide, retinol, methylmalonate, 3-hydroxy-3-methylglutarate, 3-aminoisobutyrate, N-methylpipecolate, hydroquinone sulfate, and glycine conjugates of C10H12O2 and C10H14O2(1). Significant metabolites were generally inversely associated with kidney function and smaller in mass-to-charge ratio than non-significant metabolites. CONCLUSION The 51 novel metabolites identified may serve as early, clinically relevant, kidney function biomarkers.
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Affiliation(s)
- Jovia L Nierenberg
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
| | - Jiang He
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
- Department of Medicine, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA
| | - Changwei Li
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
- Department of Epidemiology & Biostatistics, University of Georgia College of Public Health, Athens, GA, USA
| | - Xiaoying Gu
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Mengyao Shi
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
| | - Alexander C Razavi
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
| | - Xuenan Mi
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
| | - Shengxu Li
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
| | - Lydia A Bazzano
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
| | - Amanda H Anderson
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
| | - Hua He
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
| | - Wei Chen
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA
| | | | - Casey M Rebholz
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University, Baltimore, MD, USA
| | - Josef Coresh
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins University, Baltimore, MD, USA
| | - Andrew S Levey
- Division of Nephrology, Tufts Medical Center, Boston, MA, USA
| | - Lesley A Inker
- Division of Nephrology, Tufts Medical Center, Boston, MA, USA
| | - Michael Shlipak
- Department of General Internal Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Tanika N Kelly
- Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, Suite 2000, New Orleans, LA, 70112, USA.
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Martens RJH, Broers NJH, Canaud B, Christiaans MHL, Cornelis T, Gauly A, Hermans MMH, Konings CJAM, van der Sande FM, Scheijen JLJM, Stifft F, Kooman JP, Schalkwijk CG. Advanced glycation endproducts and dicarbonyls in end-stage renal disease: associations with uraemia and courses following renal replacement therapy. Clin Kidney J 2019; 13:855-866. [PMID: 33123361 PMCID: PMC7577778 DOI: 10.1093/ckj/sfz099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 07/05/2019] [Indexed: 12/14/2022] Open
Abstract
Background End-stage renal disease (ESRD) is strongly associated with cardiovascular disease (CVD) risk. Advanced glycation endproducts (AGEs) and dicarbonyls, major precursors of AGEs, may contribute to the pathophysiology of CVD in ESRD. However, detailed data on the courses of AGEs and dicarbonyls during the transition of ESRD patients to renal replacement therapy are lacking. Methods We quantified an extensive panel of free and protein-bound serum AGEs [N∈-(carboxymethyl)lysine (CML), N∈-(carboxyethyl)lysine (CEL), Nδ-(5-hydro-5-methyl-4-imidazolon-2-yl)ornithine (MG-H1)], serum dicarbonyls [glyoxal (GO), methylglyoxal (MGO), 3-deoxyglucosone (3-DG)] and tissue AGE accumulation [estimated by skin autofluorescence (SAF)] in a combined cross-sectional and longitudinal observational study of patients with ESRD transitioning to dialysis or kidney transplantation (KTx), prevalent dialysis patients and healthy controls. Cross-sectional comparisons were performed with linear regression analyses, and courses following renal replacement therapy were analysed with linear mixed models. Results Free and protein-bound AGEs, dicarbonyls and SAF were higher in chronic kidney disease (CKD) Stage 5 non-dialysis (CKD 5-ND; n = 52) and CKD Stage 5 dialysis (CKD 5-D; n = 35) than in controls (n = 42). In addition, free AGEs, protein-bound CML, GO and SAF were even higher in CKD 5-D than in CKD5-ND. Similarly, following dialysis initiation (n = 43) free and protein-bound AGEs, and GO increased, whereas SAF remained similar. In contrast, following KTx (n = 21), free and protein-bound AGEs and dicarbonyls, but not SAF, markedly declined. Conclusions AGEs and dicarbonyls accumulate in uraemia, which is even exaggerated by dialysis initiation. In contrast, KTx markedly reduces AGEs and dicarbonyls. Given their associations with CVD risk in high-risk populations, lowering AGE and dicarbonyl levels may be valuable.
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Affiliation(s)
- Remy J H Martens
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center+, Maastricht, The Netherlands.,CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, The Netherlands
| | - Natascha J H Broers
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center+, Maastricht, The Netherlands.,NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Bernard Canaud
- Medical Office EMEA, Fresenius Medical Care Deutschland GmbH, Bad Homburg, Germany.,School of Medicine, Montpellier University, Montpellier, France
| | - Maarten H L Christiaans
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Tom Cornelis
- Department of Nephrology, Jessa Hospital, Hasselt, Belgium
| | - Adelheid Gauly
- Medical Office EMEA, Fresenius Medical Care Deutschland GmbH, Bad Homburg, Germany
| | - Marc M H Hermans
- Department of Internal Medicine, Division of Nephrology, Viecuri Medical Center, Venlo, The Netherlands
| | - Constantijn J A M Konings
- Department of Internal Medicine, Division of Nephrology, Catharina Hospital Eindhoven, Eindhoven, the Netherlands
| | - Frank M van der Sande
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Jean L J M Scheijen
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, The Netherlands.,Department of Internal Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Frank Stifft
- Department of Internal Medicine, Division of Nephrology, Zuyderland Medical Center, Sittard-Geleen, The Netherlands
| | - Jeroen P Kooman
- Department of Internal Medicine, Division of Nephrology, Maastricht University Medical Center+, Maastricht, The Netherlands.,NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Casper G Schalkwijk
- CARIM School for Cardiovascular Diseases, Maastricht University, Maastricht, The Netherlands.,Department of Internal Medicine, Maastricht University Medical Center+, Maastricht, The Netherlands
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11
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Kim NY, Goddard TN, Sohn S, Spiegel DA, Crawford JM. Biocatalytic Reversal of Advanced Glycation End Product Modification. Chembiochem 2019; 20:2402-2410. [PMID: 31013547 DOI: 10.1002/cbic.201900158] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 01/01/2023]
Abstract
Advanced glycation end products (AGEs) are a heterogeneous group of molecules that emerge from the condensation of sugars and proteins through the Maillard reaction. Despite a significant number of studies showing strong associations between AGEs and the pathologies of aging-related illnesses, it has been a challenge to establish AGEs as causal agents primarily due to the lack of tools in reversing AGE modifications at the molecular level. Herein, we show that MnmC, an enzyme involved in a bacterial tRNA-modification pathway, is capable of reversing the AGEs carboxyethyl-lysine (CEL) and carboxymethyl-lysine (CML) back to their native lysine structure. Combining structural homology analysis, site-directed mutagenesis, and protein domain dissection studies, we generated a variant of MnmC with improved catalytic properties against CEL in its free amino acid form. We show that this enzyme variant is also active on a CEL-modified peptidomimetic and an AGE-containing peptide that has been established as an authentic ligand of the receptor for AGEs (RAGE). Our data demonstrate that MnmC variants are promising lead catalysts toward the development of AGE-reversal tools and a better understanding of AGE biology.
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Affiliation(s)
- Nam Y Kim
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT, 06511, USA.,Chemical Biology Institute, Yale University, 600 West Campus Drive, West Haven, CT, 06516, USA
| | - Tyler N Goddard
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT, 06511, USA.,Chemical Biology Institute, Yale University, 600 West Campus Drive, West Haven, CT, 06516, USA
| | - Seungjung Sohn
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT, 06511, USA
| | - David A Spiegel
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT, 06511, USA.,Department of Pharmacology, Yale School of Medicine, 333 Cedar Street, New Haven, CT, 06520, USA
| | - Jason M Crawford
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, CT, 06511, USA.,Chemical Biology Institute, Yale University, 600 West Campus Drive, West Haven, CT, 06516, USA.,Department of Microbial Pathogenesis, Yale School of Medicine, 295 Congress Avenue, New Haven, CT, 06536, USA
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12
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Ravichandran G, Lakshmanan DK, Raju K, Elangovan A, Nambirajan G, Devanesan AA, Thilagar S. Food advanced glycation end products as potential endocrine disruptors: An emerging threat to contemporary and future generation. ENVIRONMENT INTERNATIONAL 2019; 123:486-500. [PMID: 30622074 DOI: 10.1016/j.envint.2018.12.032] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/14/2018] [Accepted: 12/15/2018] [Indexed: 06/09/2023]
Abstract
Mankind exposure to chemicals in the past century has increased dramatically throughout environment. There is no question that chemicals interfere with the physiology of biological system. Abundance of chemicals is documented to be detrimental to human and wildlife. The mammalian endocrine system is comprised of many interacting tissues mediate themselves through hormones that are essential for metabolism, growth and development. Humans secrete over fifty different hormones to orchestrate major physiological functions however; these vital functions can be intervened by huge number of internal and external chemical stressors that are identified as endocrine disruptors. Advanced glycation end products (AGEs), familiarly known as Maillard products, formed through non-enzymatic glycation whose production is augmented on aging as well as environmental stressors. Processed foods have become very popular today due to their taste, convenience, and inexpensiveness. Manufacture of these day-to-day foods involves extreme temperatures on processing results in the formation of AGEs could independently promote oxidative stress, aging, diabetes, cancer, degenerative diseases, more fascinatingly hormonal disruption is the subject of interest of this review. Based on some substantial observations documented till time, we discuss the emergence of dietary AGEs as potential endocrine disruptors by emphasizing their occurrence, mechanisms and participation in endocrine interruption. Both economically and in terms of human life, AGEs may represent an enormous cost for the future society. Therefore, by explicating their novel role in endocrine diseases, the review strives to make an impact on AGEs and their exposure among public as well as scientific communities.
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Affiliation(s)
- Guna Ravichandran
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamilnadu, India
| | - Dinesh Kumar Lakshmanan
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamilnadu, India
| | - Karthik Raju
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamilnadu, India
| | - Abbirami Elangovan
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamilnadu, India
| | - Gayathri Nambirajan
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamilnadu, India
| | - Arul Ananth Devanesan
- Department of Food Quality and Safety, Gilat Research Center, Agricultural Research Organization, M.P. Negev 85280, Israel
| | - Sivasudha Thilagar
- Department of Environmental Biotechnology, School of Environmental Sciences, Bharathidasan University, Tiruchirappalli, Tamilnadu, India.
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13
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Liguori I, Russo G, Curcio F, Bulli G, Aran L, Della-Morte D, Gargiulo G, Testa G, Cacciatore F, Bonaduce D, Abete P. Oxidative stress, aging, and diseases. Clin Interv Aging 2018; 13:757-772. [PMID: 29731617 PMCID: PMC5927356 DOI: 10.2147/cia.s158513] [Citation(s) in RCA: 2017] [Impact Index Per Article: 336.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Reactive oxygen and nitrogen species (RONS) are produced by several endogenous and exogenous processes, and their negative effects are neutralized by antioxidant defenses. Oxidative stress occurs from the imbalance between RONS production and these antioxidant defenses. Aging is a process characterized by the progressive loss of tissue and organ function. The oxidative stress theory of aging is based on the hypothesis that age-associated functional losses are due to the accumulation of RONS-induced damages. At the same time, oxidative stress is involved in several age-related conditions (ie, cardiovascular diseases [CVDs], chronic obstructive pulmonary disease, chronic kidney disease, neurodegenerative diseases, and cancer), including sarcopenia and frailty. Different types of oxidative stress biomarkers have been identified and may provide important information about the efficacy of the treatment, guiding the selection of the most effective drugs/dose regimens for patients and, if particularly relevant from a pathophysiological point of view, acting on a specific therapeutic target. Given the important role of oxidative stress in the pathogenesis of many clinical conditions and aging, antioxidant therapy could positively affect the natural history of several diseases, but further investigation is needed to evaluate the real efficacy of these therapeutic interventions. The purpose of this paper is to provide a review of literature on this complex topic of ever increasing interest.
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Affiliation(s)
- Ilaria Liguori
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Gennaro Russo
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Francesco Curcio
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Giulia Bulli
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Luisa Aran
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - David Della-Morte
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy.,San Raffaele Roma Open University, Rome, Italy
| | - Gaetano Gargiulo
- Division of Internal Medicine, AOU San Giovanni di Dio e Ruggi di Aragona, Salerno, Italy
| | - Gianluca Testa
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy.,Department of Medicine and Health Sciences, University of Molise, Campobasso, Italy
| | - Francesco Cacciatore
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy.,Azienda Ospedaliera dei Colli, Monaldi Hospital, Heart Transplantation Unit, Naples, Italy
| | - Domenico Bonaduce
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
| | - Pasquale Abete
- Department of Translational Medical Sciences, University of Naples "Federico II", Naples, Italy
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14
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Tsutsui A, Ogura A, Tahara T, Nozaki S, Urano S, Hara M, Kojima S, Kurbangalieva A, Onoe H, Watanabe Y, Taniguchi N, Tanaka K. In vivo imaging of advanced glycation end products (AGEs) of albumin: first observations of significantly reduced clearance and liver deposition properties in mice. Org Biomol Chem 2018; 14:5755-60. [PMID: 26932508 DOI: 10.1039/c6ob00098c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Advanced glycation end products (AGEs) are associated with various diseases, especially during aging and the development of diabetes and uremia. To better understand these biological processes, investigation of the in vivo kinetics of AGEs, i.e., analysis of trafficking and clearance properties, was carried out by molecular imaging. Following the preparation of Cy7.5-labeled AGE-albumin and intravenous injection in BALB/cA-nu/nu mice, noninvasive fluorescence kinetics analysis was performed. In vivo imaging and fluorescence microscopy analysis revealed that non-enzymatic AGEs were smoothly captured by scavenger cells in the liver, i.e., Kupffer and other sinusoidal cells, but were unable to be properly cleared from the body. Overall, these results highlight an important link between AGEs and various disorders associated with them, which may serve as a platform for future research to better understand the processes and mechanisms of these disorders.
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Affiliation(s)
- Ayumi Tsutsui
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
| | - Akihiro Ogura
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
| | - Tsuyoshi Tahara
- RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Satoshi Nozaki
- RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Sayaka Urano
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
| | - Mitsuko Hara
- Micro-Signaling Regulation Technology Unit, RIKEN Center for Life Science Technologies, Wako-shi, Saitama 351-0198, Japan
| | - Soichi Kojima
- Micro-Signaling Regulation Technology Unit, RIKEN Center for Life Science Technologies, Wako-shi, Saitama 351-0198, Japan
| | - Almira Kurbangalieva
- Biofunctional Chemistry Laboratory, A. Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia
| | - Hirotaka Onoe
- RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Yasuyoshi Watanabe
- RIKEN Center for Life Science Technologies, 6-7-3 Minatojima-minamimachi, Chuo-ku, Kobe, Hyogo 650-0047, Japan
| | - Naoyuki Taniguchi
- Disease Glycomics Team, Global Research Cluster, RIKEN-Max Planck Joint Research Center for Systems Chemical Biology, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Katsunori Tanaka
- Biofunctional Synthetic Chemistry Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan. and Biofunctional Chemistry Laboratory, A. Butlerov Institute of Chemistry, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia and Japan Science and Technology Agency-PRESTO, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
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15
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Prasad C, Davis KE, Imrhan V, Juma S, Vijayagopal P. Advanced Glycation End Products and Risks for Chronic Diseases: Intervening Through Lifestyle Modification. Am J Lifestyle Med 2017; 13:384-404. [PMID: 31285723 DOI: 10.1177/1559827617708991] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 04/18/2017] [Accepted: 04/19/2017] [Indexed: 12/17/2022] Open
Abstract
Advanced glycation end products (AGEs) are a family of compounds of diverse chemical nature that are the products of nonenzymatic reactions between reducing sugars and proteins, lipids, or nucleic acids. AGEs bind to one or more of their multiple receptors (RAGE) found on a variety of cell types and elicit an array of biologic responses. In this review, we have summarized the data on the nature of AGEs and issues associated with their measurements, their receptors, and changes in their expression under different physiologic and disease states. Last, we have used this information to prescribe lifestyle choices to modulate AGE-RAGE cycle for better health.
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Affiliation(s)
- Chandan Prasad
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
| | - Kathleen E Davis
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
| | - Victorine Imrhan
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
| | - Shanil Juma
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
| | - Parakat Vijayagopal
- Department of Nutrition and Food Sciences, Texas Woman's University, Denton, Texas (CP, VI, SJ, PV).,Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas (KED)
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16
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Snelson M, Clarke RE, Coughlan MT. Stirring the Pot: Can Dietary Modification Alleviate the Burden of CKD? Nutrients 2017; 9:nu9030265. [PMID: 28287463 PMCID: PMC5372928 DOI: 10.3390/nu9030265] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 02/27/2017] [Accepted: 03/06/2017] [Indexed: 02/06/2023] Open
Abstract
Diet is one of the largest modifiable risk factors for chronic kidney disease (CKD)-related death and disability. CKD is largely a progressive disease; however, it is increasingly appreciated that hallmarks of chronic kidney disease such as albuminuria can regress over time. The factors driving albuminuria resolution remain elusive. Since albuminuria is a strong risk factor for GFR loss, modifiable lifestyle factors that lead to an improvement in albuminuria would likely reduce the burden of CKD in high-risk individuals, such as patients with diabetes. Dietary therapy such as protein and sodium restriction has historically been used in the management of CKD. Evidence is emerging to indicate that other nutrients may influence kidney health, either through metabolic or haemodynamic pathways or via the modification of gut homeostasis. This review focuses on the role of diet in the pathogenesis and progression of CKD and discusses the latest findings related to the mechanisms of diet-induced kidney disease. It is possible that optimizing diet quality or restricting dietary intake could be harnessed as an adjunct therapy for CKD prevention or progression in susceptible individuals, thereby reducing the burden of CKD.
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Affiliation(s)
- Matthew Snelson
- Glycation, Nutrition and Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne 3004, Australia.
| | - Rachel E Clarke
- Glycation, Nutrition and Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne 3004, Australia.
- Department of Physiology, Monash University, Clayton 3800, Australia.
| | - Melinda T Coughlan
- Glycation, Nutrition and Metabolism Laboratory, Baker IDI Heart and Diabetes Institute, Melbourne 3004, Australia.
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne 3004, Australia.
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17
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Davis KE, Prasad C, Vijayagopal P, Juma S, Imrhan V. Advanced Glycation End Products, Inflammation, and Chronic Metabolic Diseases: Links in a Chain? Crit Rev Food Sci Nutr 2017; 56:989-98. [PMID: 25259686 DOI: 10.1080/10408398.2012.744738] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Advanced glycation end products (AGEs) are a diverse group of compounds produced when reducing sugars react with proteins or other compounds to form glycosylated molecules. AGEs may form endogenously, and glycation of molecules may negatively affect their function. AGEs may also be consumed in food form with dietary AGEs reported to be particularly high in foods treated with high heat: baked, broiled, grilled, and fried foods. Whether dietary AGEs are absorbed in significant quantities and whether they are harmful if absorbed is a question under current debate. The American Diabetes Association makes no recommendation regarding avoidance of these foods, but many researchers are concerned that they may be pro-inflammatory and way worsen cardiac function, kidney function, diabetes and its complications and may even contribute to obesity.
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Affiliation(s)
- Kathleen E Davis
- a Texas Woman's University, Nutrition and Food Sciences , Denton , Texas , USA
| | - Chandan Prasad
- a Texas Woman's University, Nutrition and Food Sciences , Denton , Texas , USA
| | - Parakat Vijayagopal
- a Texas Woman's University, Nutrition and Food Sciences , Denton , Texas , USA
| | - Shanil Juma
- a Texas Woman's University, Nutrition and Food Sciences , Denton , Texas , USA
| | - Victorine Imrhan
- a Texas Woman's University, Nutrition and Food Sciences , Denton , Texas , USA
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18
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Luft VC, Duncan BB, Schmidt MI, Chambless LE, Pankow JS, Hoogeveen RC, Couper DJ, Heiss G. Carboxymethyl lysine, an advanced glycation end product, and incident diabetes: a case-cohort analysis of the ARIC Study. Diabet Med 2016; 33:1392-8. [PMID: 26359784 PMCID: PMC4929039 DOI: 10.1111/dme.12963] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/08/2015] [Indexed: 12/12/2022]
Abstract
AIMS To verify whether elevated fasting levels of circulating carboxymethyl lysine (CML), an advanced glycation end product, predict the development of diabetes in middle-age adults. METHODS Using a stratified case-cohort design, we followed 543 middle-aged individuals who developed diabetes and 514 who did not over a median 9 years in the Atherosclerosis Risk in Communities Study. Weighted Cox proportional hazards analyses were used to account for the design. RESULTS In weighted analyses, correlation between CML levels and anthropometric, inflammatory or metabolic variables was minimal (Pearson correlations usually < 0.10). CML, when modelled as a continuous variable and after adjustment for age, sex, race, centre, parental history of diabetes, BMI, waist-to-hip ratio, non-esterified fatty acids, oxidized LDL-cholesterol, GFR, smoking, an inflammation score, adiponectin, leptin, insulin and glucose levels, was associated with an increased risk of diabetes [Hazard ratio (HR) = 1.35; 95% confidence interval (CI) 1.09-1.67, for each 100 ng/ml CML increment]. Baseline glucose level and race each modified the association (P < 0.05 for interaction), which was present only among those with impaired fasting glucose (≥ 5.6 mmol/l, HR = 1.61, 95% CI 1.26-2.05) and among white participants (HR = 1.50, 95% CI 1.13-1.99). CONCLUSIONS Elevated fasting CML, after adjustment for multiple risk factors for diabetes, predicts the development of incident diabetes, the association being present among those with impaired fasting glucose and in white participants. These prospective findings suggest that advanced glycation end products might play a role in the development of diabetes.
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Affiliation(s)
- V C Luft
- Graduate Studies Program in Epidemiology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
- Food and Nutrition Research Centre, Hospital de Clínicas de Porto Alegre, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
| | - B B Duncan
- Graduate Studies Program in Epidemiology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Department of Epidemiology, Chapel Hill, NC, USA
| | - M I Schmidt
- Graduate Studies Program in Epidemiology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
- Department of Epidemiology, Chapel Hill, NC, USA
| | - L E Chambless
- Department of Epidemiology, Chapel Hill, NC, USA
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - J S Pankow
- Division of Epidemiology & Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA
| | - R C Hoogeveen
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - D J Couper
- Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - G Heiss
- Department of Epidemiology, Chapel Hill, NC, USA
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19
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Schutte E, de Vos LC, Lutgers HL, Lambers Heerspink HJ, Wolffenbuttel BH, Vart P, Zeebregts CJ, Gansevoort RT, Lefrandt JD. Association of Skin Autofluorescence Levels With Kidney Function Decline in Patients With Peripheral Artery Disease. Arterioscler Thromb Vasc Biol 2016; 36:1709-14. [DOI: 10.1161/atvbaha.116.307771] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 06/16/2016] [Indexed: 11/16/2022]
Abstract
Objective—
Skin autofluorescence (SAF), a measure of advanced glycation end product accumulation, is associated with kidney function. We investigated the association of SAF with rate of kidney function decline in a cohort of patients with peripheral artery disease.
Approach and Results—
We performed a post hoc analysis of an observational longitudinal cohort study. We included 471 patients with peripheral artery disease, and SAF was measured at baseline. Primary end point was rate of estimated glomerular filtration rate (eGFR) decline. Secondary end points were incidence of eGFR <60 and <45 mL/min/1.73 m
2
and rapid eGFR decline, defined as a decrease in eGFR of >5 mL/min/1.73 m
2
/y. During a median follow-up of 3 years, the mean change in eGFR per year was −1.8±4.4 mL/min/1.73 m
2
/y. No significant difference in rate of eGFR decline was observed per 1 arbitrary unit increase in SAF (−0.1 mL/min/1.73 m
2
/y; 95% confidence interval, −0.7 to 0.5;
P
=0.8). Analyses of the secondary end points showed that there was an association of SAF with incidence of eGFR <60 and <45 mL/min/1.73 m
2
(hazard ratio, 1.54; 95% confidence interval, 1.13–2.10;
P
=0.006 and hazard ratio, 1.76; 95% confidence interval, 1.20–2.59;
P
=0.004, respectively), but after adjustment for age and sex, significance was lost. There was no association of SAF with rapid eGFR decline.
Conclusions—
In conclusion, in this cohort of patients with peripheral artery disease, elevated SAF was associated with lower baseline eGFR. Although SAF has previously been established as a predictor for cardiovascular disease and mortality, it did not predict the rate of kidney function decline during follow-up in this study.
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Affiliation(s)
- Elise Schutte
- From the Department of Nephrology (E.S., R.T.G.), Department of Vascular Medicine (L.C.d.V., J.D.L.), Department of Endocrinology (H.L.L., B.H.R.W.), Department of Clinical Pharmacy and Pharmacology (H.J.L.H.), Department of Health Sciences (P.V.) and Division of Vascular Surgery, Department of Surgery (C.J.Z.), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Lisanne C. de Vos
- From the Department of Nephrology (E.S., R.T.G.), Department of Vascular Medicine (L.C.d.V., J.D.L.), Department of Endocrinology (H.L.L., B.H.R.W.), Department of Clinical Pharmacy and Pharmacology (H.J.L.H.), Department of Health Sciences (P.V.) and Division of Vascular Surgery, Department of Surgery (C.J.Z.), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Helen L. Lutgers
- From the Department of Nephrology (E.S., R.T.G.), Department of Vascular Medicine (L.C.d.V., J.D.L.), Department of Endocrinology (H.L.L., B.H.R.W.), Department of Clinical Pharmacy and Pharmacology (H.J.L.H.), Department of Health Sciences (P.V.) and Division of Vascular Surgery, Department of Surgery (C.J.Z.), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Hiddo J. Lambers Heerspink
- From the Department of Nephrology (E.S., R.T.G.), Department of Vascular Medicine (L.C.d.V., J.D.L.), Department of Endocrinology (H.L.L., B.H.R.W.), Department of Clinical Pharmacy and Pharmacology (H.J.L.H.), Department of Health Sciences (P.V.) and Division of Vascular Surgery, Department of Surgery (C.J.Z.), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Bruce H.R. Wolffenbuttel
- From the Department of Nephrology (E.S., R.T.G.), Department of Vascular Medicine (L.C.d.V., J.D.L.), Department of Endocrinology (H.L.L., B.H.R.W.), Department of Clinical Pharmacy and Pharmacology (H.J.L.H.), Department of Health Sciences (P.V.) and Division of Vascular Surgery, Department of Surgery (C.J.Z.), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Priya Vart
- From the Department of Nephrology (E.S., R.T.G.), Department of Vascular Medicine (L.C.d.V., J.D.L.), Department of Endocrinology (H.L.L., B.H.R.W.), Department of Clinical Pharmacy and Pharmacology (H.J.L.H.), Department of Health Sciences (P.V.) and Division of Vascular Surgery, Department of Surgery (C.J.Z.), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Clark J. Zeebregts
- From the Department of Nephrology (E.S., R.T.G.), Department of Vascular Medicine (L.C.d.V., J.D.L.), Department of Endocrinology (H.L.L., B.H.R.W.), Department of Clinical Pharmacy and Pharmacology (H.J.L.H.), Department of Health Sciences (P.V.) and Division of Vascular Surgery, Department of Surgery (C.J.Z.), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Ron T. Gansevoort
- From the Department of Nephrology (E.S., R.T.G.), Department of Vascular Medicine (L.C.d.V., J.D.L.), Department of Endocrinology (H.L.L., B.H.R.W.), Department of Clinical Pharmacy and Pharmacology (H.J.L.H.), Department of Health Sciences (P.V.) and Division of Vascular Surgery, Department of Surgery (C.J.Z.), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Joop D. Lefrandt
- From the Department of Nephrology (E.S., R.T.G.), Department of Vascular Medicine (L.C.d.V., J.D.L.), Department of Endocrinology (H.L.L., B.H.R.W.), Department of Clinical Pharmacy and Pharmacology (H.J.L.H.), Department of Health Sciences (P.V.) and Division of Vascular Surgery, Department of Surgery (C.J.Z.), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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20
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RAGE-mediated inflammation in patients with septic shock. J Surg Res 2016; 202:315-27. [PMID: 27229106 DOI: 10.1016/j.jss.2016.01.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 01/08/2016] [Accepted: 01/13/2016] [Indexed: 01/11/2023]
Abstract
BACKGROUND The receptor for advanced glycation end-products (RAGE)-pathway is described to be a crucial component of the innate immune response in sepsis. The aims of the present study were, therefore, to delineate the kinetics of membrane-bound RAGE expression, to quantify its soluble isoforms, and to determine the extent of metabolic (e.g., AGE-CML) as well as immunologic (e.g., S100A8/A9) ligands in different inflammatory settings in humans. MATERIALS AND METHODS The presented data result from secondary analyses of an observational clinical pilot study, including patients with septic shock (n = 60), postoperative controls (n = 30), and healthy volunteers (n = 30). Surface-bound expression of RAGE by peripheral blood leukocytes was determined by flow cytometry. In addition, plasma levels of sRAGE, esRAGE, AGE-CML, S100A8/A9, S100A8/A9-CML, RBP, RBP-CML, HSA-CML, HMBG-1, and ß-Amyloid were measured using ELISA. RESULTS In patients with septic shock, RAGE expression was significantly increased in comparison to both control groups, which was paralleled by a significant increase in sRAGE plasma levels. Formation of AGE-CML was shown to be dependent on the availability of the unmodified protein. However, the total amount of AGE-CML did not differ significantly between septic patients and healthy volunteers at early stages or was even lower in patients with sepsis at later stages. In contrast, immunologic ligands (e.g., S100A8/A9) were shown to be significantly elevated in septic patients within the entire study period. CONCLUSIONS Activation of the RAGE-pathway was shown to be of relevance in patients with septic shock, mainly driven by an increase in immunologic (e.g., S100A8/A9) rather than metabolic ligands (e.g., CML-derived AGE-formation).
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21
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Yamagishi SI, Matsui T. Pathologic role of dietary advanced glycation end products in cardiometabolic disorders, and therapeutic intervention. Nutrition 2015; 32:157-65. [PMID: 26602289 DOI: 10.1016/j.nut.2015.08.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Accepted: 08/03/2015] [Indexed: 01/12/2023]
Abstract
Reactive derivatives from nonenzymatic glucose-protein condensation reactions, as well as lipids and nucleic acids exposed to reducing sugars, form a heterogeneous group of irreversible adducts called AGEs (advanced glycation end products). The glycation process begins with the conversion of reversible Schiff base adducts to more stable, covalently bound Amadori rearrangement products. Over the course of days to weeks, these Amadori products undergo further rearrangement and condensation reactions to form irreversibly cross-linked macroprotein derivatives known as AGEs. The formation and accumulation of AGEs have been known to progress in a physiological aging process and at an accelerated rate under hyperglycemic and oxidative stress conditions. There is growing evidence that AGEs play a pathologic role in numerous disorders. Indeed, glycation and/or cross-linking modification of circulating or organic matrix proteins by AGEs the senescence of moieties and deteriorate their physiological function and structural integrity in multiple organ systems. Moreover, AGEs elicit oxidative stress and inflammatory reactions through the interaction with the receptor for advanced glycation products in a variety of cells, thereby contributing to the development and progression of various aging- or diabetes-related disorders, such as cardiovascular disease, chronic kidney disease, insulin resistance, and Alzheimer's disease. Recently, diet has been recognized as a major environmental source of AGEs that could cause proinflammatory reactions and organ damage in vivo. Therefore, this review summarizes the pathophysiological role of dietary AGEs in health and disease, especially focusing on cardiometabolic disorders. We also discuss the potential utility in targeting exogenously derived AGEs for therapeutic intervention.
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Affiliation(s)
- Sho-Ichi Yamagishi
- Department of Pathophysiology and Therapeutics of Diabetic Vascular Complications, Kurume University School of Medicine, Kurume, Japan.
| | - Takanori Matsui
- Department of Pathophysiology and Therapeutics of Diabetic Vascular Complications, Kurume University School of Medicine, Kurume, Japan
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22
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Duan Z, Chen G, Chen L, Stolzenberg-Solomon R, Weinstein SJ, Mannisto S, White DL, Albanes D, Jiao L. Determinants of concentrations of N(ε)-carboxymethyl-lysine and soluble receptor for advanced glycation end products and their associations with risk of pancreatic cancer. INTERNATIONAL JOURNAL OF MOLECULAR EPIDEMIOLOGY AND GENETICS 2014; 5:152-163. [PMID: 25379135 PMCID: PMC4214263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 09/16/2014] [Indexed: 06/04/2023]
Abstract
The soluble receptor for advanced glycation end-products (sRAGE) is shown to mitigate pro-inflammatory effects triggered by ligation of RAGE with N(ε)-carboxymethyl-lysine (CML)-AGE or other ligands. We examined the associations among host, lifestyle, and genetic determinants of CML-AGE or sRAGE and risk of pancreatic cancer in the prospective ATBC Study. We obtained baseline exposure information, data on serological and genetic biomarkers from 141 patients with pancreatic cancer and 141 subcohort controls. Stepwise linear and logistic regression models were used for data analysis. Multiple linear regression analyses showed that CML-AGE concentrations were independently inversely correlated with the minor allele of rs640742 of DDOST, physical activity, alcohol consumption, diastolic blood pressure (BP), and positively correlated with heart rate, serum sRAGE and HDL concentrations (P < 0.05). sRAGE concentrations were independently inversely correlated with the 82Ser allele of rs2070600 of RAGE, age, body mass index, heart rate, and serum HDL; and positively correlated with serum CML-AGE, sucrose consumption, and diastolic BP (P < 0.05). The minor allele of rs1035786 of RAGE was associated with reduced risk of pancreatic cancer (any T compared with CC: multivariate OR = 0.61, 95% CI: 0.38-0.98). We identified host metabolic profile, lifestyle and genetic factors that explained approximately 50% of variability of CML-AGE or sRAGE in Finnish men smokers. The association between RAGE SNPs and pancreatic cancer risk warrants further investigation.
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Affiliation(s)
- Zhigang Duan
- Department of Medicine, Baylor College of MedicineHouston, TX, USA
- Section of Health Services Research (IQuESt), Michael. E DeBakey VA Medical CenterHouston, TX, USA
| | - Guoqing Chen
- Division of Health Services Research, University of Kansas Medical CenterKansas City, KS, USA
| | - Liang Chen
- Department of Medicine, Baylor College of MedicineHouston, TX, USA
- Section of Health Services Research (IQuESt), Michael. E DeBakey VA Medical CenterHouston, TX, USA
| | - Rachael Stolzenberg-Solomon
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of HealthBethesda, MD, USA
| | - Stephanie J Weinstein
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of HealthBethesda, MD, USA
| | - Satu Mannisto
- Department of Chronic Disease Prevention, National Institute for Health and WelfareHelsinki, Finland
| | - Donna L White
- Department of Medicine, Baylor College of MedicineHouston, TX, USA
- Section of Health Services Research (IQuESt), Michael. E DeBakey VA Medical CenterHouston, TX, USA
- Texas Medical Center Digestive Disease CenterHouston, TX, USA
- Dan L. Duncan Cancer Center at Baylor College of MedicineHouston, TX, USA
- Center for Translational Research on Inflammatory Diseases (CTRID), Michael E. DeBakey Veterans Affairs Medical CenterHouston, TX, USA
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of HealthBethesda, MD, USA
| | - Li Jiao
- Department of Medicine, Baylor College of MedicineHouston, TX, USA
- Section of Health Services Research (IQuESt), Michael. E DeBakey VA Medical CenterHouston, TX, USA
- Texas Medical Center Digestive Disease CenterHouston, TX, USA
- Dan L. Duncan Cancer Center at Baylor College of MedicineHouston, TX, USA
- Center for Translational Research on Inflammatory Diseases (CTRID), Michael E. DeBakey Veterans Affairs Medical CenterHouston, TX, USA
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The aging kidney revisited: a systematic review. Ageing Res Rev 2014; 14:65-80. [PMID: 24548926 DOI: 10.1016/j.arr.2014.02.003] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 02/05/2014] [Accepted: 02/06/2014] [Indexed: 01/10/2023]
Abstract
As for the whole human body, the kidney undergoes age-related changes which translate in an inexorable and progressive decline in renal function. Renal aging is a multifactorial process where gender, race and genetic background and several key-mediators such as chronic inflammation, oxidative stress, the renin-angiotensin-aldosterone (RAAS) system, impairment in kidney repair capacities and background cardiovascular disease play a significant role. Features of the aging kidney include macroscopic and microscopic changes and important functional adaptations, none of which is pathognomonic of aging. The assessment of renal function in the framework of aging is problematic and the question whether renal aging should be considered as a physiological or pathological process remains a much debated issue. Although promising dietary and pharmacological approaches have been tested to retard aging processes or renal function decline in the elderly, proper lifestyle modifications, as those applicable to the general population, currently represent the most plausible approach to maintain kidney health.
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Zhang Y, Lapidos KA, Gal-Moscovici A, Sprague SM, Ameer GA. A receptor-based bioadsorbent to target advanced glycation end products in chronic kidney disease. Artif Organs 2013; 38:474-83. [PMID: 24206165 DOI: 10.1111/aor.12203] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The accumulation of advanced glycation end products (AGEs) has been reported to be a major contributor to chronic systemic inflammation. AGEs are not efficiently removed by hemodialysis or the kidney of a chronic kidney disease (CKD) patient. The goal of this study was to develop a receptor for AGEs (RAGE)-based bioadsorbent device that was capable of removing endogenous AGEs from human blood. The extracellular domain of RAGE was immobilized onto agarose beads to generate the bioadsorbent. The efficacy of AGE removal from saline, serum, and whole blood; biological effects of AGE reduction; and hemocompatibility and stability of the bioadsorbent were investigated. The bioadsorbent bound AGE-modified bovine serum albumin (AGE-BSA) with a binding capacity of 0.73 ± 0.07 mg AGE-BSA/mL bioadsorbent. The bioadsorbent significantly reduced the concentration of total AGEs in serum isolated from end-stage kidney disease patients by 57%. AGE removal resulted in a significant reduction of vascular cell adhesion molecule-1 expression in human endothelial cells and abolishment of osteoclast formation in osteoclast progenitor cells. A hollow fiber device loaded with bioadsorbent-reduced endogenous AGEs from recirculated blood to 36% of baseline levels with no significant changes in total protein or albumin concentration. The bioadsorbent maintained AGE-specific binding capacity after freeze-drying and storage for 1 year. This approach provides the foundation for further development of soluble RAGE-based extracorporeal therapies to selectively deplete serum AGEs from human blood and decrease inflammation in patients with diabetes and/or CKD.
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Affiliation(s)
- Yangrong Zhang
- Biomedical Engineering Department, Northwestern University, Evanston, IL, USA
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25
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Hull GLJ, Woodside JV, Ames JM, Cuskelly GJ. Validation study to compare effects of processing protocols on measured N (ε)-(carboxymethyl)lysine and N (ε)-(carboxyethyl)lysine in blood. J Clin Biochem Nutr 2013; 53:129-33. [PMID: 24249965 PMCID: PMC3818270 DOI: 10.3164/jcbn.13-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 06/16/2013] [Indexed: 01/02/2023] Open
Abstract
Epidemiological studies show that elevated plasma levels of advanced glycation end products (AGEs) are associated with diabetes, kidney disease, and heart disease. Thus AGEs have been used as disease progression markers. However, the effects of variations in biological sample processing procedures on the level of AGEs in plasma/serum samples have not been investigated. The objective of this investigation was to assess the effect of variations in blood sample collection on measured Nε-(carboxymethyl)lysine (CML), the best characterised AGE, and its homolog, Nε-(carboxyethyl)lysine (CEL). The investigation examined the effect on CML and CEL of different blood collection tubes, inclusion of a stabilising cocktail, effect of freeze thaw cycles, different storage times and temperatures, and effects of delaying centrifugation on a pooled sample from healthy volunteers. CML and CEL were measured in extracted samples by ultra-performance liquid chromatography-tandem mass spectrometry. Median CML and CEL ranged from 0.132 to 0.140 mM/M lys and from 0.053 to 0.060 mM/M lys, respectively. No significant difference was shown CML or CEL in plasma/serum samples. Therefore samples collected as part of epidemiological studies that do not undergo specific sample treatment at collection are suitable for measuring CML and CEL.
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Affiliation(s)
- George L J Hull
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, BT9 5AG, Northern Ireland, UK
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26
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Protein glycation during aging and in cardiovascular disease. J Proteomics 2013; 92:248-59. [DOI: 10.1016/j.jprot.2013.05.012] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 05/08/2013] [Accepted: 05/12/2013] [Indexed: 01/11/2023]
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27
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Xu H, Wang Z, Wang Y, Hu S, Liu N. Biodistribution and elimination study of fluorine-18 labeled Nε-carboxymethyl-lysine following intragastric and intravenous administration. PLoS One 2013; 8:e57897. [PMID: 23505446 PMCID: PMC3591457 DOI: 10.1371/journal.pone.0057897] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 01/28/2013] [Indexed: 12/15/2022] Open
Abstract
Background Nε-carboxymethyl-lysine (CML) is a major advanced glycation end-product (AGEs) widely found in foods. The aim of our study was to evaluate how exogenous CML-peptide is dynamically absorbed from the gastrointestinal tract and eliminated by renal tubular secretion using microPET imaging. Methods The present study consisted of three investigations. In study I, we synthesized the imaging tracer 18F-CML by reacting N-succinimidyl 4-18F-fluorobenzoate (18F-SFB) with CML. In study II, the biological activity of 18F-CML was evaluated in RAW264.7 cells and HepG2 cells. In study III, the biodistribution and elimination of AGEs in ICR mice were studied in vivo following tail vein injection and intragastric administration of 18F-CML. Result The formation of 18F-CML was confirmed by comparing its retention time with the corresponding reference compound 19F-CML. The radiochemical purity (RCP) of 18F-CML was >95%, and it showed a stable character in vitro and in vivo. Uptake of 18F-CML by RAW264.7 cells and HepG2 cells could be inhibited by unmodified CML. 18F-CML was quickly distributed via the blood, and it was rapidly excreted through the kidneys 20 min after tail vein injection. However, 18F-CML was only slightly absorbed following intragastric administration. After administration of 18F-CML via a stomach tube, the radioactivity was completely localized in the stomach for the first 15 min. At 150 min post intragastric administration, intense accumulation of radioactivity in the intestines was still observed. Conclusions PET technology is a powerful tool for the in vivo analysis of the gastrointestinal absorption of orally administered drugs. 18F-CML is hardly absorbed by the gastrointestinal tract. It is rapidly distributed and eliminated from blood following intravenous administration. Thus, it may not be harmful to healthy bodies. Our study showed the feasibility of noninvasively imaging 18F-labeled AGEs and was the first to describe CML-peptide gastrointestinal absorption by means of PET.
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Affiliation(s)
- Hongzeng Xu
- Department of Cardiology, Zhongda Hospital, Southeast University, Nanjing, China
| | - Zhongqun Wang
- Department of Cardiology, Zhongda Hospital, Southeast University, Nanjing, China
| | - Yan Wang
- Jiangsu Institute of Nuclear Medicine, Wuxi, China
| | - Shengda Hu
- Department of Cardiology, Zhongda Hospital, Southeast University, Nanjing, China
| | - Naifeng Liu
- Department of Cardiology, Zhongda Hospital, Southeast University, Nanjing, China
- * E-mail:
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Andrades MÉ, Lorenzi R, Nagai R, Moreira JCF, Ritter C, Dal-Pizzol F. Plasma glycation levels are associated with severity in sepsis. Eur J Clin Invest 2012; 42:1055-60. [PMID: 22625221 DOI: 10.1111/j.1365-2362.2012.02694.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Advanced glycation end-products (AGE) have been involved in inflammatory diseases and may have an important role in the progression of symptoms. However, few studies have analysed the levels of glycated proteins in sepsis. In this study, we evaluated the levels of the well-known AGE (N(ε) -(carboxymethyl)lysine (CML) and N(ε) -(carboxyethyl)lysine (CEL)) in the plasma of septic patients. MATERIAL AND METHODS Plasma from 36 patients admitted to an adult intensive care unit and 6 healthy controls had the levels of CML/CEL measured by ELISA. RESULTS The level of AGE in plasma decreased with the increase of severity (1·40±0·46 nmol/mg of protein in sepsis, 0·58±0·23 nmol/mg of protein in severe sepsis and 0·31±0·12 nmol/mg of protein in septic shock). Control plasma presented low AGE concentration (0·06±0·01 nmol/mg protein). Also, we found a decrease in plasma AGE in those patients that died at the end of 28 days follow-up (0·80±0·50 nmol/mg of protein in survivors vs. 0·31±0·10 nmol/mg of protein in nonsurvivors), being associated with the renal component of sequential organ failure assessment (SOFA) score. In the same line, there was a decrease in plasma AGE with the increase in SOFA. CONCLUSIONS Our data demonstrate that plasma AGE levels are inversely associated with the severity of sepsis and may be associated with kidney dysfunction.
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Affiliation(s)
- Michael Éverton Andrades
- Centro de Estudos em Estresse Oxidativo, Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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Weikel KA, Fitzgerald P, Shang F, Caceres MA, Bian Q, Handa JT, Stitt AW, Taylor A. Natural history of age-related retinal lesions that precede AMD in mice fed high or low glycemic index diets. Invest Ophthalmol Vis Sci 2012; 53:622-32. [PMID: 22205601 DOI: 10.1167/iovs.11-8545] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
PURPOSE Epidemiologic data indicate that people who consume low glycemic index (GI) diets are at reduced risk for the onset and progression of age-related macular degeneration (AMD). The authors sought corroboration of this observation in an animal model. METHODS Five- and 16-month-old C57BL/6 mice were fed high or low GI diets until they were 17 and 23.5 months of age, respectively. Retinal lesions were evaluated by transmission electron microscopy, and advanced glycation end products (AGEs) were evaluated by immunohistochemistry. RESULTS Retinal lesions including basal laminar deposits, loss of basal infoldings, and vacuoles in the retinal pigment epithelium were more prevalent in the 23.5- than in the 17-month-old mice. Within each age group, consumption of a high GI diet increased the risk for lesions and the risk for photoreceptor abnormalities and accumulation of AGEs. CONCLUSIONS Consuming high GI diets accelerates the appearance of age-related retinal lesions that precede AMD in mice, perhaps by increasing the deposition of toxic AGEs in the retina. The data support the hypothesis that consuming lower GI diets, or simulation of their effects with nutraceuticals or drugs, may protect against AMD. The high GI-fed C57BL/6 mouse is a new model of age-related retinal lesions that precede AMD and mimic the early stages of disease and may be useful for drug discovery.
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Affiliation(s)
- Karen A Weikel
- Laboratory for Nutrition and Vision Research, JM-USDA Human Nutrition Research Center on Aging, Tufts University, Boston, Massachusetts 02111, USA
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Obeid R, Shannan B, Herrmann W. Advanced glycation end products overload might explain intracellular cobalamin deficiency in renal dysfunction, diabetes and aging. Med Hypotheses 2011; 77:884-8. [PMID: 21880434 DOI: 10.1016/j.mehy.2011.08.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Accepted: 08/02/2011] [Indexed: 10/17/2022]
Abstract
Advanced glycation end products (AGEs) contribute to aging. Cobalamin (Cbl) is required for cell growth and functions, and its deficiency causes serious complications. Diabetics and renal patients show high concentrations of Cbl, but metabolic evidence of Cbl deficiency that is reversible after Cbl treatment. Cbl might be sequestered in blood and cannot be delivered to the cell. Megalin mediates the uptake of transcobalamin-Cbl complex into the proximal tubule cells. Megalin is involved in the uptake and degradation of AGEs. In aging, diabetes or renal dysfunction, AGEs might overload megalin thus lowering Cbl uptake. Transcobalamin-Cbl might retain in blood. Shedding of megalin and transcobalamin receptor under glycation conditions is also a possible mechanism of this phenomenon.
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Affiliation(s)
- Rima Obeid
- Department of Clinical Chemistry and Laboratory Medicine, University Hospital of Saarland, 66421 Homburg, Germany.
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Abstract
Persistently elevated oxidative stress and inflammation precede or occur during the development of type 1 or type 2 diabetes mellitus and precipitate devastating complications. Given the rapidly increasing incidence of diabetes mellitus and obesity in the space of a few decades, new genetic mutations are unlikely to be the cause, instead pointing to environmental initiators. A hallmark of contemporary culture is a preference for thermally processed foods, replete with pro-oxidant advanced glycation endproducts (AGEs). These molecules are appetite-increasing and, thus, efficient enhancers of overnutrition (which promotes obesity) and oxidant overload (which promotes inflammation). Studies of genetic and nongenetic animal models of diabetes mellitus suggest that suppression of host defenses, under sustained pressure from food-derived AGEs, may potentially shift homeostasis towards a higher basal level of oxidative stress, inflammation and injury of both insulin-producing and insulin-responsive cells. This sequence promotes both types of diabetes mellitus. Reducing basal oxidative stress by AGE restriction in mice, without energy or nutrient change, reinstates host defenses, alleviates inflammation, prevents diabetes mellitus, vascular and renal complications and extends normal lifespan. Studies in healthy humans and in those with diabetes mellitus show that consumption of high amounts of food-related AGEs is a determinant of insulin resistance and inflammation and that AGE restriction improves both. This Review focuses on AGEs as novel initiators of oxidative stress that precedes, rather than results from, diabetes mellitus. Therapeutic gains from AGE restriction constitute a paradigm shift.
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Affiliation(s)
- Helen Vlassara
- Division of Experimental Diabetes and Aging, Brookdale Department of Geriatrics, Mount Sinai School of Medicine, New York, NY 10029, USA. helen.vlassara@ mssm.edu
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Raposeiras-Roubín S, Rodiño-Janeiro BK, Grigorian-Shamagian L, Moure-González M, Seoane-Blanco A, Varela-Román A, Álvarez E, González-Juanatey JR. Productos de glicación avanzada: nuevo marcador de disfunción renal en pacientes con insuficiencia cardíaca crónica. Med Clin (Barc) 2011; 136:513-21. [DOI: 10.1016/j.medcli.2010.06.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Revised: 06/28/2010] [Accepted: 06/29/2010] [Indexed: 11/30/2022]
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Lorenzi R, Andrades ME, Bortolin RC, Nagai R, Dal-Pizzol F, Moreira JCF. Oxidative damage in the liver of rats treated with glycolaldehyde. Int J Toxicol 2011; 30:253-8. [PMID: 21378371 DOI: 10.1177/1091581810395630] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Liver diseases are often associated with hyperglycemia, inflammation, and oxidative stress. These conditions, commonly associated with diabetes mellitus and obesity, facilitate the formation of advanced glycation end products (AGEs). These products are known to impair protein function and promote inflammation. Accumulation of AGEs such as N(ε)-(carboxymethyl)lysine (CML) is related to chronic liver diseases and their severity. Although several reports suggest a crucial role of AGEs in liver failure, there is little investigation on the direct effects of reducing sugars, precursors of AGEs, and on the onset and progression of liver failure. In this work, we investigate the effects of intravenously administrated glycolaldehyde (GA), a short-chain aldehyde, on oxidative parameters in the liver of Wistar rats. Animals received a single injection of GA (10, 50, or 100 mg/kg) and were sacrificed after 6, 12, or 24 hours. Levels of protein carbonyl, lipid peroxidation, and reduced thiol were quantified. The activities of catalase, superoxide dismutase, and glyoxalase I were also assessed. The amount of CML was quantified with specific antibody. There was an increase in oxidative stress markers in the liver of GA-treated rats. Glycolaldehyde induced a decrease in the activities of all enzymes assayed. Also, all tested doses led to an increase in CML content. Our data suggest that GA might play an important role in liver diseases through the impairment of antioxidant defenses and generation of AGEs.
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Affiliation(s)
- Rodrigo Lorenzi
- Centro de Estudos em Estresse Oxidativo, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
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Lorenzi R, Andrades ME, Bortolin RC, Nagai R, Dal-Pizzol F, Moreira JCF. Glycolaldehyde induces oxidative stress in the heart: a clue to diabetic cardiomyopathy? Cardiovasc Toxicol 2011; 10:244-9. [PMID: 20632216 DOI: 10.1007/s12012-010-9083-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Cardiovascular complications account for 80% of the mortality related to diabetes mellitus. Hyperglycemia is believed to be the major culprit of angiopathy and cardiomyopathy. High glucose levels and oxidative stress cause elevation of Advanced Glycation End-products that are known to contribute to diabetic complications and correlate with many diseases. However, there are few reports describing the effects of glycating agents other than glucose. Here, we aimed to evaluate the effects of glycolaldehyde (GA) on oxidative stress parameters in the heart of Wistar rats. Male Wistar rats received a single injection of GA (10, 50 or 100 mg/Kg) and were sacrificed 6, 12 or 24 h after injection. As indexes of oxidative stress, we quantified protein carbonylation, lipid peroxidation and total reduced thiols. The activities of superoxide dismutase, catalase and glyoxalase I were assayed. Also, the content of N (ɛ)-(carboxymethyl)lysine (CML) was quantified. Glycolaldehyde induced an imbalance in the redox status, with increased protein carbonylation and lipoperoxidation. Catalase and glyoxalase I had a decrease in their activities. Despite the oxidative stress, we observed no increase in CML content. These results suggest that short-chain aldehydes such as GA might have a significant role in the development of diabetic cardiomyopathy.
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Affiliation(s)
- Rodrigo Lorenzi
- Centro de Estudos em Estresse Oxidativo, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
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Mangalmurti NS, Chatterjee S, Cheng G, Andersen E, Mohammed A, Siegel DL, Schmidt AM, Albelda SM, Lee JS. Advanced glycation end products on stored red blood cells increase endothelial reactive oxygen species generation through interaction with receptor for advanced glycation end products. Transfusion 2011; 50:2353-61. [PMID: 20492604 DOI: 10.1111/j.1537-2995.2010.02689.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Recent evidence suggests that storage-induced alterations of the red blood cell (RBC) are associated with adverse consequences in susceptible hosts. As RBCs have been shown to form advanced glycation end products (AGEs) after increased oxidative stress and under pathologic conditions, we examined whether stored RBCs undergo modification with the specific AGE N-(carboxymethyl)lysine (N(ε) -CML) during standard blood banking conditions. STUDY DESIGN AND METHODS Purified, fresh RBCs from volunteers were compared to stored RBCs (35-42 days old) obtained from the blood bank. N(ε) -CML formation was quantified using a competitive enzyme-linked immunosorbent assay. The receptor for advanced glycation end products (RAGE) was detected in human pulmonary microvascular endothelial cells (HMVEC-L) by real-time polymerase chain reaction, Western blotting, and flow cytometry. Intracellular reactive oxygen species (ROS) generation was measured by the use of 5-(and 6-)chloromethyl-2',7'-dichlorodihydrofluorescein diacetate, acetyl ester-based assays. RESULTS Stored RBCs showed increased surface N(ε) -CML formation when compared with fresh RBCs. HMVEC-L showed detectable surface RAGE expression constitutively. When compared to fresh RBCs, stored RBCs triggered increased intracellular ROS generation in both human umbilical vein endothelial cells and HMVEC-L. RBC-induced endothelial ROS generation was attenuated in the presence of soluble RAGE or RAGE blocking antibody. CONCLUSIONS The formation of the AGE N(ε) -CML on the surface of stored RBCs is one functional consequence of the storage lesion. AGE-RAGE interactions may be one mechanism by which transfused RBCs cause endothelial cell damage.
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Affiliation(s)
- Nilam S Mangalmurti
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care, University of Pennsylvania, Philadelphia 19104, USA.
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Yamagishi SI. Role of advanced glycation end products (AGEs) and receptor for AGEs (RAGE) in vascular damage in diabetes. Exp Gerontol 2010; 46:217-24. [PMID: 21111800 DOI: 10.1016/j.exger.2010.11.007] [Citation(s) in RCA: 192] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Revised: 11/10/2010] [Accepted: 11/12/2010] [Indexed: 12/16/2022]
Abstract
A non-enzymatic reaction between ketones or aldehydes and the amino groups of proteins, lipids and nucleic acids contributes to the aging of macromolecules and to the development and progression of various age-related disorders such as vascular complications of diabetes, Alzheimer's disease, cancer growth and metastasis, insulin resistance and degenerative bone disease. Under hyperglycemic and/or oxidative stress conditions, this process begins with the conversion of reversible Schiff base adducts, and then to more stable, covalently-bound Amadori rearrangement products. Over a course of days to weeks, these early glycation products undergo further reactions and rearrangements to become irreversibly crossed-linked, fluorescent protein derivatives termed advanced glycation end products (AGEs). There is a growing body of evidence that AGE and their receptor RAGE (receptor for AGEs) interaction elicits oxidative stress, inflammatory reactions and thrombosis, thereby being involved in vascular aging and damage. These observations suggest that the AGE-RAGE system is a novel therapeutic target for preventing diabetic vascular complications. In this paper, we review the pathophysiological role of the AGE-RAGE-oxidative stress system and its therapeutic intervention in vascular damage in diabetes. We also discuss here the potential utility of the restriction of food-derived AGEs in diabetic vascular complications.
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Affiliation(s)
- Sho-ichi Yamagishi
- Department of Pathophysiology and Therapeutics of Diabetic Vascular Complications, Kurume University School of Medicine, Kurume, Japan.
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Srey C, Haughey SA, Connolly L, del Castillo MD, Ames JM, Elliott CT. Immunochemical and mass spectrometric analysis of Nε-(carboxymethyl)lysine content of AGE-BSA systems prepared with and without selected antiglycation agents. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:11955-11961. [PMID: 20979353 DOI: 10.1021/jf102543g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The present study was designed to compare surface plasmon resonance (SPR) biosensor, enzyme-linked immunosorbent assay (ELISA), and ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) methods for the analysis of Nε-(carboxymethyl)lysine (CML) in glucose-bovine serum albumin (BSA) model systems and to investigate the possible inhibitory effect of selected compounds (α-tocopherol, ferulic acid, rutin, thiamin, thiamin monophosphate, and thiamin pyrophosphate) on CML formation. The reported levels of CML detected were dependent upon the method of analysis employed. The highest reported concentrations were obtained with the SPR biosensor, whereas the lowest were found by ELISA. However, a high correlation was observed between these two immunochemical procedures. CML concentrations were dependent upon the type and concentration of the candidate CML inhibitor. All inhibitory compounds investigated, with the exception of α-tocopherol, decreased the level of CML formation in the glucose-BSA system.
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Affiliation(s)
- Chou Srey
- Institute of Agri-Food and Land Use, School of Biological Sciences, Queen's University, Belfast, Northern Ireland BT9 5AG.
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Nakamura T, Sato E, Fujiwara N, Kawagoe Y, Takeuchi M, Maeda S, Yamagishi SI. Atorvastatin reduces proteinuria in non-diabetic chronic kidney disease patients partly via lowering serum levels of advanced glycation end products (AGEs). OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2010; 3:304-7. [PMID: 21150335 PMCID: PMC3154036 DOI: 10.4161/oxim.3.5.13069] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
There is accumulating evidence that advanced glycation end products (AGEs) play a role in the development and progression of chronic kidney disease (CKD). We have previously found that atorvastatin treatment significantly reduces serum levels of AGEs in type 2 diabetic patients and subjects with non-alcoholic steatohepatitis in a cholesterol loweringindependent manner. In this study, we examined whether atorvastatin could reduce proteinuria partly via reduction of serum levels of AGEs in non-diabetic CKD patients. Ten non-diabetic normotensive stage I or II CKD patients with dyslipidemia were enrolled. Patients were treated with atorvastatin (10 mg/day) for one year. All subjects underwent determination of blood chemistries, proteinuria and serum levels of AGEs at baseline and after one year. Atorvastatin treatment for one year significantly decreased circulating levels of total cholesterol, LDL cholesterol, triglycerides and AGEs, while it increased HDL cholesterol levels. Further, although atorvastatin treatment did not affect estimated glomerular filtration rate, it significantly reduced proteinuria. In univariate analyses, proteinuria levels were correlated with total cholesterol, LDL cholesterol, triglycerides, HDL cholesterol (inversely) and AGEs. Multiple stepwise regression analysis revealed that AGE level was a sole independent correlate of proteinuria. In this initial examination of the patients in this study, our present study suggests that atorvastatin could decrease proteinuria in non-diabetic CKD patients with dyslipidemia partly via reduction of serum levels of AGEs. Atorvastatin may have AGE-lowering effects in CKD patients as well that could contribute to renoprotective properties of this agent.
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Affiliation(s)
- Tsukasa Nakamura
- Division of Nephrology, Department of Internal Medicine, Shinmatsudo Central General Hospital, Chiba, Japan
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Semba RD, Nicklett EJ, Ferrucci L. Does accumulation of advanced glycation end products contribute to the aging phenotype? J Gerontol A Biol Sci Med Sci 2010; 65:963-75. [PMID: 20478906 PMCID: PMC2920582 DOI: 10.1093/gerona/glq074] [Citation(s) in RCA: 321] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2009] [Accepted: 04/01/2010] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Aging is a complex multifactorial process characterized by accumulation of deleterious changes in cells and tissues, progressive deterioration of structural integrity and physiological function across multiple organ systems, and increased risk of death. METHODS We conducted a review of the scientific literature on the relationship of advanced glycation end products (AGEs) with aging. AGEs are a heterogeneous group of bioactive molecules that are formed by the nonenzymatic glycation of proteins, lipids, and nucleic acids. RESULTS Humans are exposed to AGEs produced in the body, especially in individuals with abnormal glucose metabolism, and AGEs ingested in foods. AGEs cause widespread damage to tissues through upregulation of inflammation and cross-linking of collagen and other proteins. AGEs have been shown to adversely affect virtually all cells, tissues, and organ systems. Recent epidemiological studies demonstrate that elevated circulating AGEs are associated with increased risk of developing many chronic diseases that disproportionally affect older individuals. CONCLUSIONS Based on these data, we propose that accumulation of AGEs accelerate the multisystem functional decline that occurs with aging, and therefore contribute to the aging phenotype. Exposure to AGEs can be reduced by restriction of dietary intake of AGEs and drug treatment with AGE inhibitors and AGE breakers. Modification of intake and circulating levels of AGEs may be a possible strategy to promote health in old age, especially because most Western foods are processed at high temperature and are rich in AGEs.
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Affiliation(s)
- Richard D Semba
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Smith Building, M015, 400 North Broadway, Baltimore, MD 21287, USA.
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Karsdal MA, Henriksen K, Leeming DJ, Woodworth T, Vassiliadis E, Bay-Jensen AC. Novel combinations of Post-Translational Modification (PTM) neo-epitopes provide tissue-specific biochemical markers—are they the cause or the consequence of the disease? Clin Biochem 2010; 43:793-804. [DOI: 10.1016/j.clinbiochem.2010.03.015] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Revised: 03/22/2010] [Accepted: 03/28/2010] [Indexed: 12/31/2022]
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