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Adeshara K, Gordin D, Antikainen AA, Harjutsalo V, Sandholm N, Lehto MJ, Groop PH. Protein glycation products associate with progression of kidney disease and incident cardiovascular events in individuals with type 1 diabetes. Cardiovasc Diabetol 2024; 23:235. [PMID: 38965604 PMCID: PMC11225254 DOI: 10.1186/s12933-024-02316-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 06/16/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND Despite improved glycemic treatment, the impact of glycation on pathological consequences may persist and contribute to adverse clinical outcomes in diabetes. In the present study we investigated the association between serum protein glycation products and progression of kidney disease as well as incident major adverse cardiovascular events (MACE) in type 1 diabetes. METHODS Fructosamine, advanced glycation end products (AGEs), and methylglyoxal-modified hydro-imidazolone (MG-H1) were measured from baseline serum samples in the FinnDiane study (n = 575). Kidney disease progression was defined as steep eGFR decline (> 3 mL/min/1.73 m2/year) or progression of albuminuria (from lower to higher stage of albuminuria). MACE was defined as acute myocardial infarction, coronary revascularization, cerebrovascular event (stroke), and cardiovascular death. RESULTS Fructosamine was independently associated with steep eGFR decline (OR 2.15 [95% CI 1.16-4.01], p = 0.016) in the fully adjusted model (age, sex, baseline eGFR). AGEs were associated with steep eGFR decline (OR 1.58 per 1 unit of SD [95% CI 1.07-2.32], p = 0.02), progression to end-stage kidney disease (ESKD) (HR 2.09 per 1 unit of SD [95% CI 1.43-3.05], p < 0.001), and pooled progression (to any stage of albuminuria) (HR 2.72 per 1 unit of SD [95% CI 2.04-3.62], p < 0.001). AGEs (HR 1.57 per 1 unit of SD [95% CI 1.23-2.00], p < 0.001) and MG-H1 (HR 4.99 [95% CI 0.98-25.55], p = 0.054) were associated with incident MACE. MG-H1 was also associated with pooled progression (HR 4.19 [95% CI 1.11-15.89], p = 0.035). Most AGEs and MG-H1 associations were no more significant after adjusting for baseline eGFR. CONCLUSIONS Overall, these findings suggest that protein glycation products are an important risk factor for target organ damage in type 1 diabetes. The data provide further support to investigate a potential causal role of serum protein glycation in the progression of diabetes complications.
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Affiliation(s)
- Krishna Adeshara
- Folkhälsan Research Center, Helsinki, Finland
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Daniel Gordin
- Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Joslin Diabetes Center, Harvard Medical School, Boston, MA, USA
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Anni A Antikainen
- Folkhälsan Research Center, Helsinki, Finland
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Valma Harjutsalo
- Folkhälsan Research Center, Helsinki, Finland
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Niina Sandholm
- Folkhälsan Research Center, Helsinki, Finland
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Markku J Lehto
- Folkhälsan Research Center, Helsinki, Finland
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Per-Henrik Groop
- Folkhälsan Research Center, Helsinki, Finland.
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
- Department of Nephrology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, VIC, Australia.
- FRCPE Folkhälsan Research Center, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, PO Box 63, 00290, Helsinki, Finland.
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Martin MS, Jacob-Dolan JW, Pham VTT, Sjoblom NM, Scheck RA. The chemical language of protein glycation. Nat Chem Biol 2024:10.1038/s41589-024-01644-y. [PMID: 38942948 DOI: 10.1038/s41589-024-01644-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 05/10/2024] [Indexed: 06/30/2024]
Abstract
Glycation is a non-enzymatic post-translational modification (PTM) that is correlated with many diseases, including diabetes, cancer and age-related disorders. Although recent work points to the importance of glycation as a functional PTM, it remains an open question whether glycation has a causal role in cellular signaling and/or disease development. In this Review, we contextualize glycation as a specific mechanism of carbon stress and consolidate what is known about advanced glycation end-product (AGE) structures and mechanisms. We highlight the current understanding of glycation as a PTM, focusing on mechanisms for installing, removing or recognizing AGEs. Finally, we discuss challenges that have hampered a more complete understanding of the biological consequences of glycation. The development of tools for predicting, modulating, mimicking or capturing glycation will be essential for interpreting a post-translational glycation network. Therefore, continued insights into the chemistry of glycation will be necessary to advance understanding of glycation biology.
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Klonoff DC, Aaron RE, Tian T, DuNova AY, Pandey A, Rhee C, Fleming GA, Sacks DB, Pop-Busui R, Kerr D. Advanced Glycation Endproducts: A Marker of Long-term Exposure to Glycemia. J Diabetes Sci Technol 2024:19322968241240436. [PMID: 38525944 DOI: 10.1177/19322968241240436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
This article examines the importance of advanced glycation endproducts (AGEs) and summarizes the structure of AGEs, pathological changes associated with AGEs, the contribution of AGEs to metabolic memory, and the value of AGEs as a predictor of diabetic complications and cardiovascular disease in people with and without diabetes. As a practical focus, skin autofluorescence (SAF) is examined as an attractive approach for estimating AGE burden. The measurement of AGEs may be of significant value to specific individuals and groups, including Black and Hispanic/Latino Americans, as they appear to have higher concentrations of hemoglobin A1c (HbA1c) than would be predicted by other metrics of mean glycemia. We hypothesize that if the amount of glycation of HbA1c is greater than expected from measured glucose levels, and if AGEs are accumulating, then this accumulation of AGEs might account for the increased rate of complications of diabetes in populations with high rates of vascular disease and other complications. Thus, identifying and modifying the burden of AGEs based on measurement of AGEs by SAF may turn out to be a worthwhile metric to determine individuals who are at high risk for the complications of diabetes as well as others without diabetes at risk of vascular disease. We conclude that available evidence supports SAF as both a clinical measurement and as a means of evaluating interventions aimed at reducing the risks of vascular disease and diabetic complications.
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Affiliation(s)
- David C Klonoff
- Diabetes Research Institute, Mills-Peninsula Medical Center, San Mateo, CA, USA
| | | | - Tiffany Tian
- Diabetes Technology Society, Burlingame, CA, USA
| | | | - Ambarish Pandey
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Connie Rhee
- VA Greater Los Angeles Healthcare System, UCLA, Los Angeles, CA, USA
| | | | | | | | - David Kerr
- Sutter Health Center for Health Systems Research, Santa Barbara, CA, USA
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4
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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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5
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Buckingham BA, Bergenstal RM. Decreasing the Burden of Carbohydrate Counting and Meal Announcement with Automated Insulin Delivery, Meal Recognition, and Autocorrection Doses: A Case Study. Diabetes Technol Ther 2024; 26:97-101. [PMID: 38377320 DOI: 10.1089/dia.2023.0505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
The use of automated insulin delivery (AID) has led to a decrease in the burden of diabetes, allowing for better sleep, decreased anxiety about hypoglycemia, and automatic corrections doses, and meal recognition algorithms have provided "forgiveness" for imprecise carbohydrate (CHO) entries and missed or late meal boluses. We provide a case report and review of the current literature assessing the effect of AID on the burden of meal bolus. The case also demonstrates how sensor and pump data provide insight into insulin bolus behavior, and access to integrated cloud-based data has allowed for virtual patient visits. Glucose sensor metrics provides time in range and time below range, and the sensor-derived glucose management indicator provides an assessment of the long-term risk of complications when a laboratory glycated hemoglobin is not available.
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Affiliation(s)
- Bruce A Buckingham
- Division of Pediatric Endocrinology, Stanford University School of Medicine, Palo Alto, California, USA
| | - Richard M Bergenstal
- International Diabetes Center, HealthPartners Institute, Bloomington, Minnesota, USA
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Dong H, Sun Y, Nie L, Cui A, Zhao P, Leung WK, Wang Q. Metabolic memory: mechanisms and diseases. Signal Transduct Target Ther 2024; 9:38. [PMID: 38413567 PMCID: PMC10899265 DOI: 10.1038/s41392-024-01755-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/29/2024] Open
Abstract
Metabolic diseases and their complications impose health and economic burdens worldwide. Evidence from past experimental studies and clinical trials suggests our body may have the ability to remember the past metabolic environment, such as hyperglycemia or hyperlipidemia, thus leading to chronic inflammatory disorders and other diseases even after the elimination of these metabolic environments. The long-term effects of that aberrant metabolism on the body have been summarized as metabolic memory and are found to assume a crucial role in states of health and disease. Multiple molecular mechanisms collectively participate in metabolic memory management, resulting in different cellular alterations as well as tissue and organ dysfunctions, culminating in disease progression and even affecting offspring. The elucidation and expansion of the concept of metabolic memory provides more comprehensive insight into pathogenic mechanisms underlying metabolic diseases and complications and promises to be a new target in disease detection and management. Here, we retrace the history of relevant research on metabolic memory and summarize its salient characteristics. We provide a detailed discussion of the mechanisms by which metabolic memory may be involved in disease development at molecular, cellular, and organ levels, with emphasis on the impact of epigenetic modulations. Finally, we present some of the pivotal findings arguing in favor of targeting metabolic memory to develop therapeutic strategies for metabolic diseases and provide the latest reflections on the consequences of metabolic memory as well as their implications for human health and diseases.
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Affiliation(s)
- Hao Dong
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yuezhang Sun
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Lulingxiao Nie
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Aimin Cui
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Pengfei Zhao
- Periodontology and Implant Dentistry Division, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Wai Keung Leung
- Periodontology and Implant Dentistry Division, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Qi Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
- Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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Fakharian P, Taghavi F, Kianmehr Z, Atashian M. Inhibitory effects of thymol and carvacrol on heme degradation and oxidative products due to tartrazine: In silico and in vitro studies. Heliyon 2024; 10:e24576. [PMID: 38312565 PMCID: PMC10835315 DOI: 10.1016/j.heliyon.2024.e24576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 12/22/2023] [Accepted: 01/10/2024] [Indexed: 02/06/2024] Open
Abstract
The pathology of many diseases arises from oxidative stress and cell destruction. Antioxidant application is one of the most important ways for oxidative stress prevention in the cells and its consequent effects. The present study investigated the natural antioxidants inhibitory effects of thymol and carvacrol on human hemoglobin treated with tartrazine. Purified hemoglobin from human blood samples was treated with tartrazine alone or in combination with mentioned natural antioxidants (thymol and carvacrol). Treated samples were picked up at regular time intervals and changes were followed by UV-visible and fluorescence spectroscopic assays, and circular dichroism spectroscopy (CD). The result of fluorescence spectroscopy revealed that thymol and carvacrol prevented the production of heme-degradation products and advanced glycation end products (AGEs) caused by hemoglobin oxidation with tartrazine. The results of UV-visible and fluorescence spectroscopy revealed the positive effect of these antioxidants on preserving Hb folding, heme, and especially the porphyrin ring surrounding the microenvironment. The results of the circular dichroism (CD) assay showed the protection of alpha helix structure in hemoglobin treated with thymol and carvacrol compared to the control sample. The mentioned antioxidants caused hemoglobin resistance against tartrazine's destructive effect by preventing both heme degradation and glycemic toxins formation and thus reducing the rate of oxidative processes. This matter can be important for various pharmaceutical, health, and cosmetic industries.
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Affiliation(s)
- Parvaneh Fakharian
- Department of Biochemistry, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Fereshteh Taghavi
- Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Zahra Kianmehr
- Department of Biochemistry, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Maryam Atashian
- Department of Biochemistry, Faculty of Biological Sciences, North Tehran Branch, Islamic Azad University, Tehran, Iran
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Kreindl C, Soto-Alarcón SA, Hidalgo M, Riveros AL, Añazco C, Pulgar R, Porras O. Selenium Compounds Affect Differently the Cytoplasmic Thiol/Disulfide State in Dermic Fibroblasts and Improve Cell Migration by Interacting with the Extracellular Matrix. Antioxidants (Basel) 2024; 13:159. [PMID: 38397757 PMCID: PMC10886037 DOI: 10.3390/antiox13020159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/15/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
Deficient wound healing is frequently observed in patients diagnosed with diabetes, a clinical complication that compromises mobility and leads to limb amputation, decreasing patient autonomy and family lifestyle. Fibroblasts are crucial for secreting the extracellular matrix (ECM) to pave the wound site for endothelial and keratinocyte regeneration. The biosynthetic pathways involved in collagen production and crosslinking are intimately related to fibroblast redox homeostasis. In this study, two sets of human dermic fibroblasts were cultured in normal (5 mM) and high (25 mM)-glucose conditions in the presence of 1 µM selenium, as sodium selenite (inorganic) and the two selenium amino acids (organic), Se-cysteine and Se-methionine, for ten days. We investigated the ultrastructural changes in the secreted ECM induced by these conditions using scanning electron microscopy (SEM). In addition, we evaluated the redox impact of these three compounds by measuring the basal state and real-time responses of the thiol-based HyPer biosensor expressed in the cytoplasm of these fibroblasts. Our results indicate that selenium compound supplementation pushed the redox equilibrium towards a more oxidative tone in both sets of fibroblasts, and this effect was independent of the type of selenium. The kinetic analysis of biosensor responses allowed us to identify Se-cysteine as the only compound that simultaneously improved the sensitivity to oxidative stimuli and augmented the disulfide bond reduction rate in high-glucose-cultured fibroblasts. The redox response profiles showed no clear association with the ultrastructural changes observed in matrix fibers secreted by selenium-treated fibroblasts. However, we found that selenium supplementation improved the ECM secreted by high-glucose-cultured fibroblasts according to endothelial migration assessed with a wound healing assay. Direct application of sodium selenite and Se-cysteine on purified collagen fibers subjected to glycation also improved cellular migration, suggesting that these selenium compounds avoid the undesired effect of glycation.
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Affiliation(s)
- Christine Kreindl
- Laboratory for Research in Functional Nutrition, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7830490, Chile; (C.K.); (M.H.)
| | - Sandra A. Soto-Alarcón
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago 7500912, Chile;
| | - Miltha Hidalgo
- Laboratory for Research in Functional Nutrition, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7830490, Chile; (C.K.); (M.H.)
| | - Ana L. Riveros
- Laboratorio de Nanobiotecnología y Nanotoxicología, Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingston 1007, Santiago 8380492, Chile;
| | - Carolina Añazco
- Laboratorio de Bioquímica Nutricional, Escuela de Nutrición y Dietética, Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, General Lagos #1190, Valdivia 5110773, Chile;
| | - Rodrigo Pulgar
- Laboratory of Genomics and Genetics of Biological Interactions, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago 7830490, Chile;
| | - Omar Porras
- Laboratory for Research in Functional Nutrition, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7830490, Chile; (C.K.); (M.H.)
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9
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Hughes MS, Addala A, Buckingham B. Digital Technology for Diabetes. N Engl J Med 2023; 389:2076-2086. [PMID: 38048189 DOI: 10.1056/nejmra2215899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Affiliation(s)
- Michael S Hughes
- From the Division of Endocrinology, Gerontology, and Metabolism, Department of Medicine (M.S.H.), and the Division of Pediatric Endocrinology, Department of Pediatrics (A.A., B.B), Stanford University, Stanford, CA
| | - Ananta Addala
- From the Division of Endocrinology, Gerontology, and Metabolism, Department of Medicine (M.S.H.), and the Division of Pediatric Endocrinology, Department of Pediatrics (A.A., B.B), Stanford University, Stanford, CA
| | - Bruce Buckingham
- From the Division of Endocrinology, Gerontology, and Metabolism, Department of Medicine (M.S.H.), and the Division of Pediatric Endocrinology, Department of Pediatrics (A.A., B.B), Stanford University, Stanford, CA
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Kelly CB, Karanchi H, Yu JY, Leyva MJ, Jenkins AJ, Nankervis AJ, Hanssen KF, Garg SK, Scardo JA, Hammad SM, Aston CE, Beisswenger PJ, Lyons TJ. Plasma AGE and Oxidation Products, Renal Function, and Preeclampsia in Pregnant Women with Type 1 Diabetes: A Prospective Observational Study. J Diabetes Res 2023; 2023:8537693. [PMID: 37601831 PMCID: PMC10435306 DOI: 10.1155/2023/8537693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 08/22/2023] Open
Abstract
Aims We aimed to determine whether plasma advanced glycation end products or oxidation products (AGE/oxidation-P) predict altered renal function and/or preeclampsia (PE) in pregnant women with type 1 diabetes. Methods Prospectively, using a nested case-control design, we studied 47 pregnant women with type 1 diabetes, of whom 23 developed PE and 24 did not. Nineteen nondiabetic, normotensive pregnant women provided reference values. In plasma obtained at ~12, 22, and 32 weeks' gestation (visits 1, 2, and 3; V1-V3), we measured five AGE products (carboxymethyllysine (CML), carboxyethyl-lysine (CEL), methylglyoxal-hydroimidazolone (MGH1), 3-deoxyglucosone hydroimidazolone (3DGH), and glyoxal-hydroimidazolone (GH1)) and four oxidation products (methionine sulfoxide (MetSO), 2-aminoadipic acid (2-AAA), 3-nitrotyrosine (3NT), and dityrosine (DT)), by liquid chromatography/mass spectroscopy. Clinical outcomes were "estimated glomerular filtration rate" (eGFR) at each visit and onset of PE. Results In diabetic women, associations between AGE/oxidation-P and eGFR were found only in those who developed PE. In this group, CEL, MGH1, and GH1 at V2 and CML, CEL, MGH1, and GH1 at V3 were inversely associated with contemporaneous eGFR, while CEL, MGH1, 3DGH, and GH1 at V2 were inversely associated with eGFR at V3 (all p < 0.05). There were no associations of plasma AGE or oxidation-P with pregnancy-related development of proteinuria or PE. Conclusions Inverse associations of second and early third trimester plasma AGE with eGFR among type 1 diabetic women who developed PE suggest that these patients constitute a subset susceptible to AGE-mediated injury and thus to cardiorenal complications later in life. However, AGE/oxidation-P did not predict PE in type 1 diabetic women.
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Affiliation(s)
- Clare B. Kelly
- Division of Endocrinology, Medical University of South Carolina, Charleston, South Carolina, USA
- Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Harsha Karanchi
- Division of Endocrinology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Jeremy Y. Yu
- Division of Endocrinology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Misti J. Leyva
- Division of Endocrinology, Medical University of South Carolina, Charleston, South Carolina, USA
- Diabetes Free South Carolina, BlueCross BlueShield of South Carolina, Columbia, South Carolina, USA
| | | | | | - Kristian F. Hanssen
- Department of Endocrinology, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Satish K. Garg
- Barbara Davis Center for Childhood Diabetes, University of Colorado, Denver, Colorado, USA
| | - James A. Scardo
- Spartanburg Regional Medical Center, Spartanburg, South Carolina, USA
| | - Samar M. Hammad
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Christopher E. Aston
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | | | - Timothy J. Lyons
- Division of Endocrinology, Medical University of South Carolina, Charleston, South Carolina, USA
- Diabetes Free South Carolina, BlueCross BlueShield of South Carolina, Columbia, South Carolina, USA
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Aoki E, Hirashima T, Kumamoto Y, Yamamoto Y, Suzuki N, Oshima T, Saito D, Hirano T. Clinical significance of skin autofluorescence for diabetic macroangiopathy and comparison with conventional markers of atherosclerosis: a cross-sectional and prospective study. Diabetol Int 2023; 14:145-154. [PMID: 37090128 PMCID: PMC10113414 DOI: 10.1007/s13340-022-00608-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 11/11/2022] [Indexed: 11/29/2022]
Abstract
Background Skin autofluorescence (SAF) is a marker for the accumulation of advanced glycation end products (AGEs), and is associated with diabetic macroangiopathy. However, whether SAF is superior to conventional markers of atherosclerosis such as carotid intima-media thickness (IMT) and pulse wave velocity (PWV) in detecting macroangiopathy remains unclear. Methods We recruited 845 patients with type 2 diabetes enrolled in a community diabetes cohort (ViNA cohort) who had SAF, IMT, and PWV measured at baseline. The prevalence of macroangiopathy at baseline and new cardiovascular events during the 2-year follow-up period was investigated. SAF was measured using an AGE reader. Coronary artery calcification (CAC) was measured by computed tomography in 485 patients. Peripheral artery disease (PAD) was defined as the ankle-brachial blood pressure ratio of ≤ 0.9. Results SAF, IMT, and PWV were significantly correlated with each other, and age, diabetes duration, and estimated glomerular filtration rate were their strong confounders. SAF was associated with baseline stroke and new stroke after adjusting for confounders, but not with coronary artery disease (CAD) or PAD. The nonsignificant relationship between SAF and CAD was consistent with the relationship between SAF and CAC. Multivariate analysis showed a significant association of SAF with baseline and new stroke independent of IMT and PWV. Maximum-IMT was significantly associated with baseline CAD, PAD, and stroke, but not with a new stroke, whereas PWV was associated with a new stroke. Conclusion Among diabetic macroangiopathies, SAF is a good stroke biomarker, but not for CAD and PAD. Supplementary Information The online version contains supplementary material available at 10.1007/s13340-022-00608-8.
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Affiliation(s)
- Ema Aoki
- Diabetes Center, Ebina General Hospital, Kawaharaguchi 1320, Ebina, Kanagawa 243-0433 Japan
| | - Takeshi Hirashima
- Diabetes Center, Ebina General Hospital, Kawaharaguchi 1320, Ebina, Kanagawa 243-0433 Japan
| | - Yuko Kumamoto
- Department of Clinical Laboratory, Ebina General Hospital, Ebina, Japan
| | - Yuko Yamamoto
- Department of Clinical Laboratory, Ebina General Hospital, Ebina, Japan
| | - Natsuko Suzuki
- Diabetes Center, Ebina General Hospital, Kawaharaguchi 1320, Ebina, Kanagawa 243-0433 Japan
| | - Taito Oshima
- Diabetes Center, Ebina General Hospital, Kawaharaguchi 1320, Ebina, Kanagawa 243-0433 Japan
| | - Daizo Saito
- Department of Nutrition, Ebina General Hospital, Ebina, Japan
| | - Tsutomu Hirano
- Diabetes Center, Ebina General Hospital, Kawaharaguchi 1320, Ebina, Kanagawa 243-0433 Japan
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12
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Selvachandran G, Quek SG, Paramesran R, Ding W, Son LH. Developments in the detection of diabetic retinopathy: a state-of-the-art review of computer-aided diagnosis and machine learning methods. Artif Intell Rev 2023; 56:915-964. [PMID: 35498558 PMCID: PMC9038999 DOI: 10.1007/s10462-022-10185-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2022] [Indexed: 02/02/2023]
Abstract
The exponential increase in the number of diabetics around the world has led to an equally large increase in the number of diabetic retinopathy (DR) cases which is one of the major complications caused by diabetes. Left unattended, DR worsens the vision and would lead to partial or complete blindness. As the number of diabetics continue to increase exponentially in the coming years, the number of qualified ophthalmologists need to increase in tandem in order to meet the demand for screening of the growing number of diabetic patients. This makes it pertinent to develop ways to automate the detection process of DR. A computer aided diagnosis system has the potential to significantly reduce the burden currently placed on the ophthalmologists. Hence, this review paper is presented with the aim of summarizing, classifying, and analyzing all the recent development on automated DR detection using fundus images from 2015 up to this date. Such work offers an unprecedentedly thorough review of all the recent works on DR, which will potentially increase the understanding of all the recent studies on automated DR detection, particularly on those that deploys machine learning algorithms. Firstly, in this paper, a comprehensive state-of-the-art review of the methods that have been introduced in the detection of DR is presented, with a focus on machine learning models such as convolutional neural networks (CNN) and artificial neural networks (ANN) and various hybrid models. Each AI will then be classified according to its type (e.g. CNN, ANN, SVM), its specific task(s) in performing DR detection. In particular, the models that deploy CNN will be further analyzed and classified according to some important properties of the respective CNN architectures of each model. A total of 150 research articles related to the aforementioned areas that were published in the recent 5 years have been utilized in this review to provide a comprehensive overview of the latest developments in the detection of DR. Supplementary Information The online version contains supplementary material available at 10.1007/s10462-022-10185-6.
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Affiliation(s)
- Ganeshsree Selvachandran
- Department of Actuarial Science and Applied Statistics, Faculty of Business & Management, UCSI University, Jalan Menara Gading, Cheras, 56000 Kuala Lumpur, Malaysia
| | - Shio Gai Quek
- Department of Actuarial Science and Applied Statistics, Faculty of Business & Management, UCSI University, Jalan Menara Gading, Cheras, 56000 Kuala Lumpur, Malaysia
| | - Raveendran Paramesran
- Institute of Computer Science and Digital Innovation, UCSI University, Jalan Menara Gading, Cheras, 56000 Kuala Lumpur, Malaysia
| | - Weiping Ding
- School of Information Science and Technology, Nantong University, Nantong, 226019 People’s Republic of China
| | - Le Hoang Son
- VNU Information Technology Institute, Vietnam National University, Hanoi, Vietnam
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13
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Majchrzak C, Cougnard-Gregoire A, Le-Goff M, Féart C, Delcourt C, Reydit M, Helmer C, Rigalleau V. Skin autofluorescence of Advanced Glycation End-products and mortality in older adults: The roles of chronic kidney disease and diabetes. Nutr Metab Cardiovasc Dis 2022; 32:2526-2533. [PMID: 36064683 DOI: 10.1016/j.numecd.2022.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/27/2022] [Accepted: 08/05/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND AIM Advanced glycation end products are involved in age-related multisystem decline. They accumulate in body tissues with age, diabetes and chronic kidney disease (CKD), and can be measured non-invasively by the skin autofluorescence (SAF). We studied the relation between SAF and later mortality in old adults. METHODS AND RESULTS The SAF was measured using an AGE-Reader in 451 individuals from the general population aged over 75 years, and all-cause mortality was assessed during an average follow-up of 6.4 years. The association between SAF and mortality was analyzed using a multivariate Cox survival model, adjusted for age and gender. Analyses were further adjusted for diabetes and stratified on the presence of CKD due to its interaction with SAF for the risk of mortality. Participants were 82 years old on average (SD 4.1). Their mean SAF was 2.8 AU (SD 0.6). One hundred and forty-four individuals (31.9%) died during the follow-up. Adjusted for age and gender, SAF was associated with an increased risk of all-cause mortality (HR 1.44, 95%CI: 1.14-1.82 for a one-AU increase of SAF). The association was no longer significant after adjustment for diabetes. However, after stratification for the presence of CKD, higher SAF was associated with an increased risk of all-cause mortality in the participants with CKD at baseline (HR 1.68, 95%CI: 1.11-2.55), whereas there was no association among participants without CKD (HR 0.95, 95%CI: 0.63-1.44). CONCLUSION Skin autofluorescence is associated with increased all-cause mortality in older adults already suffering from CKD.
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Affiliation(s)
- Camille Majchrzak
- Nutrition-Diabetology, CHU of Bordeaux, Haut-Lévêque Hospital, F-33600 Pessac, France
| | - Audrey Cougnard-Gregoire
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR U1219, F-33000 Bordeaux, France
| | - Mélanie Le-Goff
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR U1219, F-33000 Bordeaux, France
| | - Catherine Féart
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR U1219, F-33000 Bordeaux, France
| | - Cécile Delcourt
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR U1219, F-33000 Bordeaux, France
| | - Mathilde Reydit
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR U1219, F-33000 Bordeaux, France
| | - Catherine Helmer
- University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR U1219, F-33000 Bordeaux, France
| | - Vincent Rigalleau
- Nutrition-Diabetology, CHU of Bordeaux, Haut-Lévêque Hospital, F-33600 Pessac, France; University of Bordeaux, Inserm, Bordeaux Population Health Research Center, UMR U1219, F-33000 Bordeaux, France.
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14
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Diallo AM, Jaisson S, Barriquand R, Lukas C, Barraud S, Decoudier B, Francois M, Ly S, Mahmoudi R, Arndt C, Nazeyrollas P, Gillery P, Delemer B. Association Between the Tissue and Circulating Advanced Glycation End-Products and the Micro- and Macrovascular Complications in Type 1 Diabetes: The DIABAGE Study. Diabetes Ther 2022; 13:1531-1546. [PMID: 35779209 PMCID: PMC9309113 DOI: 10.1007/s13300-022-01285-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 05/18/2022] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Type 1 diabetes is associated with an increased risk of vascular complications. We aimed to investigate the association between serum and tissue advanced glycation end-products (AGEs) and micro- and macrovascular complications in type 1 diabetes (T1D). METHODS We conducted a cross-sectional study on 196 adults with T1D (mean age 44.53 ± 16, mean duration of diabetes 22 ± 12 years, mean HbA1c 8 ± 1.2%). AGEs were measured in blood serum (i.e., carboxymethyllysine (CML), methylglyoxal-hydroimidazolone-1 (MGH1), and pentosidine) and by measurement of skin autofluorescence (SAF). Associations between AGEs levels and vascular complications were analyzed using binary logistic regression. Correlations between AGEs and pulse wave velocity (PWV) were also assessed by linear regressions. Significant differences were set for p values less than 0.05. RESULTS We found positive associations between different AGEs and vascular complications. SAF was associated with both microangiopathy (retinopathy: OR = 1.92, p = 0.011; neuropathy: OR = 2.02, p = 0.04; any microangiopathy: OR = 2.83, p < 0.0001) and macroangiopathy (coronaropathy: OR = 3.11, p = 0.009; any macroangiopathy: OR = 2.78, p = 0.003). For circulating AGEs, pentosidine was significantly associated with coronaropathy (OR = 1.61, p = 0.01) and any macroangiopathy (OR = 1.52, p = 0.005) while MGH1 was associated with nephropathy (OR 1.72, p = 0.03). Furthermore, a significant linear correlation was found between PWV and SAF (r = 0.43, p < 0.001), pentosidine (r = 0.28, p < 0.001), and MGH1 (r = 0.16, p = 0.031), but not for CML (r = 0.03, p = 0.598). CONCLUSIONS Skin autofluorescence appears to be a useful marker for investigating both micro- and macrovascular complications in T1D. In this study, pentosidine was associated with macroangiopathy and MGH1 with nephropathy among the circulating AGEs. Furthermore, the correlations between PWV and AGEs may suggest their value in early prediction of vascular complications in T1D.
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Affiliation(s)
- Alpha M Diallo
- Service d'Endocrinologie, Diabète et Nutrition, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France.
- Laboratoire de recherche en Santé Publique, Vieillissement, Qualité de vie et Réadaptation des Sujets Fragiles, EA 3797, Université de Reims Champagne-Ardenne, Reims, France.
| | - Stéphane Jaisson
- Laboratoire de Biochimie et de Biologie Moléculaire, CNRS/URCA UMR N° 7369 MEDyC, Faculté de Médecine, Université de Reims Champagne-Ardenne, Reims, France
| | - Romain Barriquand
- Service d'Endocrinologie, Diabète et Nutrition, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France
| | - Céline Lukas
- Service d'Endocrinologie, Diabète et Nutrition, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France
| | - Sara Barraud
- Service d'Endocrinologie, Diabète et Nutrition, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France
- CRESTIC EA 3804, Université de Reims Champagne Ardenne, UFR Sciences Exactes et Naturelles, Moulin de la Housse, BP 1039, 51687, Reims CEDEX 2, France
| | - Bénédicte Decoudier
- Service d'Endocrinologie, Diabète et Nutrition, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France
| | - Maud Francois
- Service d'Endocrinologie, Diabète et Nutrition, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France
| | - Sang Ly
- Service d'Endocrinologie, Diabète et Nutrition, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France
| | - Rachid Mahmoudi
- Laboratoire de recherche en Santé Publique, Vieillissement, Qualité de vie et Réadaptation des Sujets Fragiles, EA 3797, Université de Reims Champagne-Ardenne, Reims, France
- Service de Gériatrie, CHU de Reims, 48 rue Cognacq Jay, 51092, Reims, France
| | - Carl Arndt
- Service d'Ophtalmologie, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France
| | - Pierre Nazeyrollas
- Laboratoire de recherche en Santé Publique, Vieillissement, Qualité de vie et Réadaptation des Sujets Fragiles, EA 3797, Université de Reims Champagne-Ardenne, Reims, France
- Service de Cardiologie, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France
| | - Philippe Gillery
- Laboratoire de Biochimie et de Biologie Moléculaire, CNRS/URCA UMR N° 7369 MEDyC, Faculté de Médecine, Université de Reims Champagne-Ardenne, Reims, France
| | - Brigitte Delemer
- Service d'Endocrinologie, Diabète et Nutrition, CHU de Reims, Avenue du Général Koenig, 51092, Reims, France
- CRESTIC EA 3804, Université de Reims Champagne Ardenne, UFR Sciences Exactes et Naturelles, Moulin de la Housse, BP 1039, 51687, Reims CEDEX 2, France
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Jiang T, Zhang Y, Dai F, Liu C, Hu H, Zhang Q. Advanced glycation end products and diabetes and other metabolic indicators. Diabetol Metab Syndr 2022; 14:104. [PMID: 35879776 PMCID: PMC9310394 DOI: 10.1186/s13098-022-00873-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/01/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Diabetes is a global concern among adults. Previous studies have suggested an association between different screening methods and diabetes; however, increasing evidence has suggested the importance of early screening for diabetes mellitus (DM) and its influencing factors. In this study, we aimed to explore whether the non-invasive detection of advanced glycation end products (AGEs) in the early screening of DM in the Chinese community and whether body mass index (BMI) and metabolic indexes could moderate this relationship. METHODS Three community health service centers in Hefei that signed the medical consortium agreement with the First Affiliated Hospital of Anhui Medical University were selected to screen the population aged 30-90 years in each community using a multi-stage cluster sampling method from January 2018 to January 2019. Univariate analysis of variance was used to compare the differences in general data, biochemical indexes, skin AGEs levels, and blood glucose among groups. In addition, a multivariable logistic regression analysis was performed. RESULTS A total of 912 patients with a community health physical examination and no history of diabetes were selected, excluding those with missing values > 5%. Finally, 906 samples were included in the study with an effective rate of 99.3%. The prevalence in the normal, impaired glucose tolerance, and DM groups were 79.8%, 10.0%, and 10.2%, respectively. By dividing AGE by quartile, AGE accumulation was classified as ≤ P25, P25-P50, P50-P75, and > P75. Higher AGE accumulation (χ2 = 37.95), BMI (χ2 = 12.20), systolic blood pressure (SBP) (χ2 = 8.46), triglyceride (TG) (χ2 = 6.23), and older age (χ2 = 20.11) were more likely to have a higher prevalence of fasting blood glucose (FBG). The analyses revealed significant correlations between AGE accumulation, BMI, TG, total cholesterol (TC), and FBG (P < 0.05). CONCLUSION As the findings indicate, priority should be given to the quality of metabolic-related indicators, such as BMI, TG, and TC, employed to effectively reduce the FBG of Chinese participants with high AGE accumulation. Skin autofluorescence may prove to be a rapid and non-invasive method for assessing the metabolic progression of all glucose level layers.
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Affiliation(s)
- Tian Jiang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
| | - Yi Zhang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, No 81 Meishan Road, Hefei, 230032, Anhui, China
| | - Fang Dai
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
| | - Chao Liu
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
| | - Honglin Hu
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
| | - Qiu Zhang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China.
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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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17
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Dicarbonyl Stress in Diabetic Vascular Disease. Int J Mol Sci 2022; 23:ijms23116186. [PMID: 35682865 PMCID: PMC9181283 DOI: 10.3390/ijms23116186] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 02/07/2023] Open
Abstract
Late vascular complications play a prominent role in the diabetes-induced increase in morbidity and mortality. Diabetes mellitus is recognised as a risk factor driving atherosclerosis and cardiovascular mortality; even after the normalisation of blood glucose concentration, the event risk is amplified—an effect called “glycolytic memory”. The hallmark of this glycolytic memory and diabetic pathology are advanced glycation end products (AGEs) and reactive glucose metabolites such as methylglyoxal (MGO), a highly reactive dicarbonyl compound derived mainly from glycolysis. MGO and AGEs have an impact on vascular and organ structure and function, contributing to organ damage. As MGO is not only associated with hyperglycaemia in diabetes but also with other risk factors for diabetic vascular complications such as obesity, dyslipidaemia and hypertension, MGO is identified as a major player in the development of vascular complications in diabetes both on micro- as well as macrovascular level. In diabetes mellitus, the detoxifying system for MGO, the glyoxalase system, is diminished, accounting for the increased MGO concentration and glycotoxic load. This overview will summarise current knowledge on the effect of MGO and AGEs on vascular function.
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18
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Advanced Glycation End Products: A Sweet Flavor That Embitters Cardiovascular Disease. Int J Mol Sci 2022; 23:ijms23052404. [PMID: 35269546 PMCID: PMC8910157 DOI: 10.3390/ijms23052404] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 12/24/2022] Open
Abstract
Epidemiological studies demonstrate the role of early and intensive glycemic control in the prevention of micro and macrovascular disease in both type 1 and type 2 diabetes mellitus (DM). Hyperglycemia elicits several pathways related to the etiopathogenesis of cardiovascular disease (CVD), including the generation of advanced glycation end products (AGEs). In this review, we revisit the role played by AGEs in CVD based in clinical trials and experimental evidence. Mechanistic aspects concerning the recognition of AGEs by the advanced glycosylation end product-specific receptor (AGER) and its counterpart, the dolichyl-diphosphooligosaccharide-protein glycosyltransferase (DDOST) and soluble AGER are discussed. A special focus is offered to the AGE-elicited pathways that promote cholesterol accumulation in the arterial wall by enhanced oxidative stress, inflammation, endoplasmic reticulum stress and impairment in the reverse cholesterol transport (RCT).
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Jin Q, Lau ES, Luk AO, Ozaki R, Chow EY, So T, Yeung T, Loo KM, Lim CK, Kong AP, So WY, Jenkins AJ, Chan JC, Ma RC. Skin autofluorescence is associated with progression of kidney disease in type 2 diabetes: A prospective cohort study from the Hong Kong diabetes biobank. Nutr Metab Cardiovasc Dis 2022; 32:436-446. [PMID: 34895800 DOI: 10.1016/j.numecd.2021.10.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/29/2021] [Accepted: 10/11/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS Skin autofluorescence (SAF) can non-invasively assess the accumulation of tissue AGEs. We investigated the association between SAF and kidney dysfunction in participants with T2D. METHODS Of 4030 participants consecutively measured SAF at baseline, 3725 participants free of end-stage kidney disease (ESKD) were included in the analyses. The association of SAF with incident ESKD or ≥30% reduction in estimated glomerular filtration rate (eGFR) was examined with Cox regression, linear mixed-effects model for the association with annual eGFR decline, and mediation analyses for the mediating roles of renal markers. RESULTS During a median (IQR) 1.8 (1.1-3.1) years of follow-up, 411 participants developed the outcome. SAF was associated with progression of kidney disease (hazard ratio 1.15 per SD, 95% confidence interval [CI] [1.04, 1.28]) and annual decline in eGFR (β -0.39 per SD, 95% CI [-0.71, -0.07]) after adjustment for risk factors, including baseline eGFR and urinary albumin-creatinine ratio (UACR). Decreased eGFR (12.9%) and increased UACR (25.8%) accounted for 38.7% of the effect of SAF on renal outcome. CONCLUSIONS SAF is independently associated with progression of kidney disease. More than half of its effect is independent of renal markers. SAF is of potential to be a prognostic marker for kidney dysfunction.
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Affiliation(s)
- Qiao Jin
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
| | - Eric Sh Lau
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
| | - Andrea Oy Luk
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China; Chinese University of Hong Kong-Shanghai Jiao Tong University Joint Research Centre in Diabetes Genomics and Precision Medicine, Chinese University of Hong Kong, Hong Kong, China.
| | - Risa Ozaki
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China.
| | - Elaine Yk Chow
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China.
| | - Tammy So
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
| | - Theresa Yeung
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
| | - Kit-Man Loo
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
| | - Cadmon Kp Lim
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
| | - Alice Ps Kong
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China.
| | - Wing Yee So
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, China.
| | - Alicia J Jenkins
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; NHMRC Clinical Trial Centre, Faculty of Medicine and Health, University of Sydney, Australia.
| | - Juliana Cn Chan
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China; Chinese University of Hong Kong-Shanghai Jiao Tong University Joint Research Centre in Diabetes Genomics and Precision Medicine, Chinese University of Hong Kong, Hong Kong, China.
| | - Ronald Cw Ma
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China; Hong Kong Institute of Diabetes and Obesity, The Chinese University of Hong Kong, Hong Kong, China; Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Hong Kong, China; Chinese University of Hong Kong-Shanghai Jiao Tong University Joint Research Centre in Diabetes Genomics and Precision Medicine, Chinese University of Hong Kong, Hong Kong, China.
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Monnier VM, Sell DR, Gao X, Genuth SM, Lachin JM, Bebu I. Plasma advanced glycation end products and the subsequent risk of microvascular complications in type 1 diabetes in the DCCT/EDIC. BMJ Open Diabetes Res Care 2022; 10:10/1/e002667. [PMID: 35058313 PMCID: PMC8783825 DOI: 10.1136/bmjdrc-2021-002667] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/01/2021] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION To assess impact of glycemic control on plasma protein-bound advanced glycation end products (pAGEs) and their association with subsequent microvascular disease. RESEARCH DESIGN AND METHODS Eleven pAGEs were measured by liquid chromatography-mass spectrometry in banked plasma from 466 participants in the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) study at three time points (TPs): DCCT year 4 (TP1) and year 8 (TP2) and EDIC year 5/6 (TP3). Correlation coefficients assessed cross-sectional associations, and Cox proportional hazards models assessed associations with subsequent risk of microvascular complications through EDIC year 24. RESULTS Glucose-derived glycation products fructose-lysine (FL), glucosepane (GSPN) and carboxymethyl-lysine (CML) decreased with intensive glycemic control at both TP1 and TP2 (p<0.0001) but were similar at TP3, and correlated with hemoglobin A1c (HbA1c). At TP1, the markers were associated with the subsequent risk of several microvascular outcomes. These associations did not remain significant after adjustment for HbA1c, except methionine sulfoxide (MetSOX), which remained associated with diabetic kidney disease. In unadjusted models using all 3 TPs, glucose-derived pAGEs were associated with subsequent risk of proliferative diabetic retinopathy (PDR, p<0.003), clinically significant macular edema (CSME, p<0.015) and confirmed clinical neuropathy (CCN, p<0.018, except CML, not significant (NS)). Adjusted for age, sex, body mass index, diabetes duration and mean updated HbA1c, the associations remained significant for PDR (FL: p<0.002, GSPN: p≤0.02, CML: p<0.003, pentosidine: p<0.02), CMSE (CML: p<0.03), albuminuria (FL: p<0.02, CML: p<0.03) and CCN (FL: p<0.005, GSPN : p<0.003). CONCLUSIONS pAGEs at TP1 are not superior to HbA1c for risk prediction, but glucose-derived pAGEs at three TPs and MetSOX remain robustly associated with progression of microvascular complications in type 1 diabetes even after adjustment for HbA1c and other factors.
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Affiliation(s)
- Vincent M Monnier
- Pathology and Biochemistry, Case Western Reserve University Department of Pathology, Cleveland, Ohio, USA
| | - David R Sell
- Pathology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Xiaoyu Gao
- The Biostatistics Center, The George Washington University, Rockville, Maryland, USA
| | - Saul M Genuth
- Medicine, Case Western Reserve University, Cleveland, Ohio, USA
| | - John M Lachin
- The Biostatistics Center, The George Washington University, Rockville, Maryland, USA
| | - Ionut Bebu
- The Biostatistics Center, The George Washington University, Rockville, Maryland, USA
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21
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Al-Saoudi E, Christensen MMB, Nawroth P, Fleming T, Hommel EE, Jørgensen ME, Fleischer J, Hansen CS. Advanced glycation end-products are associated with diabetic neuropathy in young adults with type 1 diabetes. Front Endocrinol (Lausanne) 2022; 13:891442. [PMID: 36303871 PMCID: PMC9592972 DOI: 10.3389/fendo.2022.891442] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 09/16/2022] [Indexed: 11/23/2022] Open
Abstract
AIMS/HYPOTHESIS Advanced glycation end-products (AGEs) may contribute to the development of diabetic neuropathy. In young adults with type 1 diabetes, we aimed to investigate the association between AGEs and cardiovascular autonomic neuropathy (CAN) and distal symmetric polyneuropathy (DSPN). METHODS This cross-sectional study comprised 151 young adults. CAN was assessed by cardiovascular autonomic reflex tests; lying-to-standing test, deep breathing test (E/I), Valsalva manoeuvre, and heart rate variability indices; and the mean square of the sum of the squares of differences between consecutive R-R intervals and standard deviation of normal-to-normal intervals (SDNN), high- (HF) and low-frequency (LF) power, total frequency power, and the LF/HF ratio. DSPN was assessed by light touch, pain and vibration perception threshold (VPT), neuropathy questionnaires, and objective measures. AGEs were analysed in four groups using z-scores adjusted for relevant confounders and multiple testing: i) "glycolytic dysfunction", ii) "lipid peroxidation", iii) "oxidative stress", and iv) "glucotoxicity". RESULTS A higher z-score of "glycolytic dysfunction" was associated with higher VPT (4.14% (95% CI 1.31; 7.04), p = 0.004) and E/I (0.03% (95% CI 0.01; 0.05), p = 0.005), "lipid peroxidation" was associated with higher LF/HF ratio (37.72% (95% CI 1.12; 87.57), p = 0.044), and "glucotoxicity" was associated with lower SDNN (-4.20% (95% CI -8.1416; -0.0896), p = 0.047). No significance remained after adjustment for multiple testing. CONCLUSIONS/INTERPRETATIONS In young adults with type 1 diabetes, increased levels of AGEs involving different metabolic pathways were associated with several measures of CAN and DSPN, suggesting that AGEs may play a diverse role in the pathogeneses of diabetic neuropathy.
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Affiliation(s)
- Elaf Al-Saoudi
- Department of Complication Research , Steno Diabetes Center Copenhagen, Herlev, Denmark
- *Correspondence: Elaf Al-Saoudi,
| | | | - Peter Nawroth
- Department of Medicine I and Clinical Chemistry, University Hospital of Heidelberg, Heidelberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Joint Heidelberg-Institute for Diabetes and Cancer (IDC) Translational Diabetes Programm, Helmholtz-Zentrum, Heidelberg, Germany
| | - Thomas Fleming
- Department of Medicine I and Clinical Chemistry, University Hospital of Heidelberg, Heidelberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | | | - Marit E. Jørgensen
- Department of Clinical Epidemiology, Steno Diabetes Center Copenhagen, Herlev, Denmark
- Steno Diabetes Center Greenland, Nuuk, Greenland
| | | | - Christian S. Hansen
- Department of Complication Research , Steno Diabetes Center Copenhagen, Herlev, Denmark
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22
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Passarelli M, Machado UF. AGEs-Induced and Endoplasmic Reticulum Stress/Inflammation-Mediated Regulation of GLUT4 Expression and Atherogenesis in Diabetes Mellitus. Cells 2021; 11:104. [PMID: 35011666 PMCID: PMC8750246 DOI: 10.3390/cells11010104] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 02/08/2023] Open
Abstract
In recent decades, complex and exquisite pathways involved in the endoplasmic reticulum (ER) and inflammatory stress responses have been demonstrated to participate in the development and progression of numerous diseases, among them diabetes mellitus (DM). In those pathways, several players participate in both, reflecting a complicated interplay between ER and inflammatory stress. In DM, ER and inflammatory stress are involved in both the pathogenesis of the loss of glycemic control and the development of degenerative complications. Furthermore, hyperglycemia increases the generation of advanced glycation end products (AGEs), which in turn refeed ER and inflammatory stress, contributing to worsening glycemic homeostasis and to accelerating the development of DM complications. In this review, we present the current knowledge regarding AGEs-induced and ER/inflammation-mediated regulation of the expression of GLUT4 (solute carrier family 2, facilitated glucose transporter member 4), as a marker of glycemic homeostasis and of cardiovascular disease (CVD) development/progression, as a leading cause of morbidity and mortality in DM.
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Affiliation(s)
- Marisa Passarelli
- Laboratório de Lípides (LIM-10), Hospital das Clínicas (HCFMUSP) da Faculdade de Medicina da Universidade de São Paulo, São Paulo 01246-000, Brazil;
- Programa de Pos-Graduação em Medicina, Universidade Nove de Julho, São Paulo 01525-000, Brazil
| | - Ubiratan Fabres Machado
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo 05508-000, Brazil
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Hernandez-Castillo C, Shuck SC. Diet and Obesity-Induced Methylglyoxal Production and Links to Metabolic Disease. Chem Res Toxicol 2021; 34:2424-2440. [PMID: 34851609 DOI: 10.1021/acs.chemrestox.1c00221] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The obesity rate in the United States is 42.4% and has become a national epidemic. Obesity is a complex condition that is influenced by socioeconomic status, ethnicity, genetics, age, and diet. Increased consumption of a Western diet, one that is high in processed foods, red meat, and sugar content, is associated with elevated obesity rates. Factors that increase obesity risk, such as socioeconomic status, also increase consumption of a Western diet because of a limited access to healthier options and greater affordability of processed foods. Obesity is a public health threat because it increases the risk of several pathologies, including atherosclerosis, diabetes, and cancer. The molecular mechanisms linking obesity to disease onset and progression are not well understood, but a proposed mechanism is physiological changes caused by altered lipid peroxidation, glycolysis, and protein metabolism. These metabolic pathways give rise to reactive molecules such as the abundant electrophile methylglyoxal (MG), which covalently modifies nucleic acids and proteins. MG-adducts are associated with obesity-linked pathologies and may have potential for biomonitoring to determine the risk of disease onset and progression. MG-adducts may also play a role in disease progression because they are mutagenic and directly impact protein stability and function. In this review, we discuss how obesity drives metabolic alterations, how these alterations lead to MG production, the association of MG-adducts with disease, and the potential impact of MG-adducts on cellular function.
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Affiliation(s)
- Carlos Hernandez-Castillo
- Department of Diabetes and Cancer Metabolism, Beckman Research Institute of City of Hope, Duarte, California 91010, United States
| | - Sarah C Shuck
- Department of Diabetes and Cancer Metabolism, Beckman Research Institute of City of Hope, Duarte, California 91010, United States
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Tahara N, Tahara A, Maeda-Ogata S, Yoshimura H, Bekki M, Sugiyama Y, Honda A, Igata S, Nishino Y, Matsui T, Fukami A, Enomoto M, Adachi H, Fukumoto Y, Yamagishi SI. Increased Urinary Levels of Pentosidine Measured by a Newly Developed Enzyme-Linked Immunosorbent Assay Are Independently Correlated with Fracture After Fall. Rejuvenation Res 2021; 24:449-455. [PMID: 34846174 DOI: 10.1089/rej.2021.0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Although we have found that increased serum levels of glyceraldehyde-derived advanced glycation end products (AGEs) are associated with numerous aging-related disorders, it remains unclear which structurally distinct AGEs could be a reliable biomarker of the healthy life-threatening disorders. Since pentosidine is produced by glyceraldehyde, we measured here urinary pentosidine levels with a newly developed enzyme-linked immunosorbent assay (ELISA) kit, which requires no pretreatment with acid hydrolysis and heat, and examined their correlations with geriatric syndrome, such as musculoskeletal disease, frailty, and cognitive impairment, in a general population. Multiple regression analysis revealed that female, age, history of fracture after fall, and taking medication for diabetes were independent correlates of log urine pentosidine-to-creatinine ratio (R2 = 0.190). When gender-adjusted log urine pentosidine-to-creatinine ratio stratified by smile frequency grade was compared using analysis of covariance, urine pentosidine-to-creatinine ratio was significantly decreased according to the increase in smile frequency. Our present findings suggest that measurement of urine pentosidine-to-creatinine ratio by a newly developed ELISA kit may be useful for identifying high-risk patients for fall-related fractures.
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Affiliation(s)
- Nobuhiro Tahara
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Atsuko Tahara
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Shoko Maeda-Ogata
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Hanae Yoshimura
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Munehisa Bekki
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Yoichi Sugiyama
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Akihiro Honda
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Sachiyo Igata
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Yuri Nishino
- 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
| | - Ako Fukami
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Mika Enomoto
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Hisashi Adachi
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Yoshihiro Fukumoto
- Division of Cardiovascular Medicine, Department of Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Sho-Ichi Yamagishi
- Division of Diabetes, Metabolism, and Endocrinology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
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Corica D, Pepe G, Currò M, Aversa T, Tropeano A, Ientile R, Wasniewska M. Methods to investigate advanced glycation end-product and their application in clinical practice. Methods 2021; 203:90-102. [DOI: 10.1016/j.ymeth.2021.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 12/01/2021] [Accepted: 12/16/2021] [Indexed: 12/15/2022] Open
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AGE/Non-AGE Glycation: An Important Event in Rheumatoid Arthritis Pathophysiology. Inflammation 2021; 45:477-496. [PMID: 34787800 DOI: 10.1007/s10753-021-01589-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 07/29/2021] [Accepted: 10/25/2021] [Indexed: 12/28/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory, autoimmune disease that gradually affects the synovial membrane and joints. Many intrinsic and/or extrinsic factors are crucial in making RA pathology challenging throughout the disease. Substantial enzymatic or non-enzymatic modification of proteins driving inflammation has gained a lot of interest in recent years. Endogenously modified glycated protein influences disease development linked with AGEs/non-AGEs and is reported as a disease marker. In this review, we summarized current knowledge of the differential abundance of glycated proteins by compiling and analyzing a variety of AGE and non-AGE ligands that bind with RAGE to activate multi-faceted inflammatory and oxidative stress pathways that are pathobiologically associated with RA-fibroblast-like synoviocytes (RA-FLS). It is critical to comprehend the connection between oxidative stress and inflammation generation, mediated by glycated protein, which may bind to the receptor RAGE, activate downstream pathways, and impart immunogenicity in RA. It is worth noting that AGEs and non-AGEs ligands play a variety of functions, and their functionality is likely to be more reliant on pathogenic states and severity that may serve as biomarkers for RA. Screening and monitoring of these differentially glycated proteins, as well as their stability in circulation, in combination with established pre-clinical characteristics, may aid or predict the onset of RA.
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Karkin K, İzol V, Kaplan M, Değer M, Akdoğan N, Tansuğ MZ. Demonstration of advanced glycation end product (AGE) expression in bladder cancer tissue in type-2 diabetic and non-diabetic patients and the relationship between AGE accumulation and endoplasmic reticulum stress with bladder cancer. Int J Clin Pract 2021; 75:e14526. [PMID: 34120398 DOI: 10.1111/ijcp.14526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 04/12/2021] [Accepted: 06/11/2021] [Indexed: 11/30/2022] Open
Abstract
PURPOSE This study aimed to investigate the relationship between advanced glycation end product (AGE) expression and accumulation in transurethral resection (TUR-B) material taken from type-2 diabetes mellitus (DM) and non-DM bladder cancer patients and endoplasmic reticulum stress (ERS) with bladder cancer. METHOD The patients who had TUR-B between May 2016 and September 2018 were included in the study. After the tissue samples had been taken and frozen at -80°C, they were homogenised to be used in enzyme-linked immunosorbent assay (ELISA) experiments. The patients were grouped as DM and non-DM. In both groups, mean AGE, IRE1, PERK and ATF6 expression amounts were evaluated through ELISA method in the pathological material. RESULTS The expression amounts in tissue samples were AGE 0.59 ± 0.03 µg/mL, ATF6 1.08 ± 0.11 µg/mL, IRE1 30.71 ± 1.68 ng/mL, PERK 0.28 ± 0.02 ng. It was /mL. While there was no significant difference amongst AGE µg/mL (P = .146), ATF6 µg/mL (P = .175), IRE1 ng/mL (P = NA) and PERK ng/mL (P = .125) (P > .05) in the presence of DM, a positive correlation was observed between AGE values and PERK ng/mL values (r = .629; P < .05). CONCLUSION Bladder cancer may develop as a result of accumulation of AGEs and ERS. Demonstration of the expression of proteins resulting from AGEs and ERS may be useful biomarkers for the diagnosis, prognosis, prevention and development of treatment alternatives for bladder cancer.
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Affiliation(s)
- Kadir Karkin
- Department of Urology, Adana City Training and Research Hospital, Health Sciences University, Adana, Turkey
| | - Volkan İzol
- Department of Urology, Faculty of Medicine, University of Çukurova, Adana, Turkey
| | - Mahir Kaplan
- Department of Pharmacology, Faculty of Medicine, University of Çukurova, Adana, Turkey
| | - Mutlu Değer
- Department of Urology, Faculty of Medicine, University of Çukurova, Adana, Turkey
| | - Nebil Akdoğan
- Department of Urology, Faculty of Medicine, University of Çukurova, Adana, Turkey
| | - Mustafa Zühtü Tansuğ
- Department of Urology, Faculty of Medicine, University of Çukurova, Adana, Turkey
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Folz R, Laiteerapong N. The legacy effect in diabetes: are there long-term benefits? Diabetologia 2021; 64:2131-2137. [PMID: 34392398 PMCID: PMC9196952 DOI: 10.1007/s00125-021-05539-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/27/2021] [Indexed: 12/23/2022]
Abstract
In this narrative review, we summarise the evidence for and against the glycaemic legacy effect from the long-term follow-up of major diabetes trials and observational cohort studies. We provide a summary of the pathophysiological basis for the legacy effect and discuss some translational research. Results from trials of early diabetes and observational cohort studies suggest that a long-term effect of early glycaemic control exists; however, long-term follow-up from trials in participants with established diabetes is not supportive. Additionally, findings for the legacy effect are more conclusive for microvascular complications than macrovascular events. Overall, these results suggest that the glycaemic legacy effect is a long-term benefit (or risk) conferred to individuals in the early stages of diabetes and which is muted over time as individuals' vasculature changes and they develop complications from diabetes.
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Affiliation(s)
- Rachel Folz
- Department of Medicine, University of Chicago, Chicago, IL, USA
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Zhuang A, Yap FYT, Borg DJ, McCarthy D, Fotheringham A, Leung S, Penfold SA, Sourris KC, Coughlan MT, Schulz BL, Forbes JM. The AGE receptor, OST48 drives podocyte foot process effacement and basement membrane expansion (alters structural composition). Endocrinol Diabetes Metab 2021; 4:e00278. [PMID: 34277994 PMCID: PMC8279619 DOI: 10.1002/edm2.278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 05/16/2021] [Accepted: 05/22/2021] [Indexed: 11/17/2022] Open
Abstract
AIMS The accumulation of advanced glycation end products is implicated in the development and progression of diabetic kidney disease. No study has examined whether stimulating advanced glycation clearance via receptor manipulation is reno-protective in diabetes. Podocytes, which are early contributors to diabetic kidney disease and could be a target for reno-protection. MATERIALS AND METHODS To examine the effects of increased podocyte oligosaccharyltransferase-48 on kidney function, glomerular sclerosis, tubulointerstitial fibrosis and proteome (PXD011434), we generated a mouse with increased oligosaccharyltransferase-48kDa subunit abundance in podocytes driven by the podocin promoter. RESULTS Despite increased urinary clearance of advanced glycation end products, we observed a decline in renal function, significant glomerular damage including glomerulosclerosis, collagen IV deposition, glomerular basement membrane thickening and foot process effacement and tubulointerstitial fibrosis. Analysis of isolated glomeruli identified enrichment in proteins associated with collagen deposition, endoplasmic reticulum stress and oxidative stress. Ultra-resolution microscopy of podocytes revealed denudation of foot processes where there was co-localization of oligosaccharyltransferase-48kDa subunit and advanced glycation end-products. CONCLUSIONS These studies indicate that increased podocyte expression of oligosaccharyltransferase-48 kDa subunit results in glomerular endoplasmic reticulum stress and a decline in kidney function.
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Affiliation(s)
- Aowen Zhuang
- Glycation and Diabetes ComplicationsMater Research Institute – The University of QueenslandTranslational Research InstituteWoolloongabbaQldAustralia
- Faculty of MedicineUniversity of QueenslandSt LuciaQldAustralia
- Baker Heart and Diabetes InstituteMelbourneVicAustralia
| | | | - Danielle J. Borg
- Glycation and Diabetes ComplicationsMater Research Institute – The University of QueenslandTranslational Research InstituteWoolloongabbaQldAustralia
| | - Domenica McCarthy
- Glycation and Diabetes ComplicationsMater Research Institute – The University of QueenslandTranslational Research InstituteWoolloongabbaQldAustralia
| | - Amelia Fotheringham
- Glycation and Diabetes ComplicationsMater Research Institute – The University of QueenslandTranslational Research InstituteWoolloongabbaQldAustralia
| | - Sherman Leung
- Glycation and Diabetes ComplicationsMater Research Institute – The University of QueenslandTranslational Research InstituteWoolloongabbaQldAustralia
| | | | - Karly C. Sourris
- Baker Heart and Diabetes InstituteMelbourneVicAustralia
- Department of DiabetesCentral Clinical SchoolMonash UniversityMelbourneVicAustralia
| | - Melinda T. Coughlan
- Baker Heart and Diabetes InstituteMelbourneVicAustralia
- Department of DiabetesCentral Clinical SchoolMonash UniversityMelbourneVicAustralia
| | - Benjamin L. Schulz
- School of Chemistry and Molecular BiosciencesUniversity of QueenslandSt LuciaQldAustralia
| | - Josephine M. Forbes
- Glycation and Diabetes ComplicationsMater Research Institute – The University of QueenslandTranslational Research InstituteWoolloongabbaQldAustralia
- Faculty of MedicineUniversity of QueenslandSt LuciaQldAustralia
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Takahashi M, Taniguchi N. Maillard reaction in vivo and its relevance to diseases: editorial and dedication. Glycoconj J 2021; 38:277-281. [PMID: 33893942 PMCID: PMC8116256 DOI: 10.1007/s10719-021-09996-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 02/23/2021] [Accepted: 02/26/2021] [Indexed: 11/30/2022]
Affiliation(s)
- Motoko Takahashi
- Sapporo Medical University, South-1 West-17, Chuo-ku, Sapporo, 0608556, Japan.
| | - Naoyuki Taniguchi
- Osaka International Cancer Institute, 3-1-69, Otemae, Chuo-ku, Osaka, 541-8567, Japan
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Rabbani N, Thornalley PJ. Protein glycation - biomarkers of metabolic dysfunction and early-stage decline in health in the era of precision medicine. Redox Biol 2021; 42:101920. [PMID: 33707127 PMCID: PMC8113047 DOI: 10.1016/j.redox.2021.101920] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/16/2021] [Accepted: 02/22/2021] [Indexed: 02/06/2023] Open
Abstract
Protein glycation provides a biomarker in widespread clinical use, glycated hemoglobin HbA1c (A1C). It is a biomarker for diagnosis of diabetes and prediabetes and of medium-term glycemic control in patients with established diabetes. A1C is an early-stage glycation adduct of hemoglobin with glucose; a fructosamine derivative. Glucose is an amino group-directed glycating agent, modifying N-terminal and lysine sidechain amino groups. A similar fructosamine derivative of serum albumin, glycated albumin (GA), finds use as a biomarker of glycemic control, particularly where there is interference in use of A1C. Later stage adducts, advanced glycation endproducts (AGEs), are formed by the degradation of fructosamines and by the reaction of reactive dicarbonyl metabolites, such as methylglyoxal. Dicarbonyls are arginine-directed glycating agents forming mainly hydroimidazolone AGEs. Glucosepane and pentosidine, an intense fluorophore, are AGE covalent crosslinks. Cellular proteolysis of glycated proteins forms glycated amino acids, which are released into plasma and excreted in urine. Development of diagnostic algorithms by artificial intelligence machine learning is enhancing the applications of glycation biomarkers. Investigational glycation biomarkers are in development for: (i) healthy aging; (ii) risk prediction of vascular complications of diabetes; (iii) diagnosis of autism; and (iv) diagnosis and classification of early-stage arthritis. Protein glycation biomarkers are influenced by heritability, aging, decline in metabolic, vascular, renal and skeletal health, and other factors. They are applicable to populations of differing ethnicities, bridging the gap between genotype and phenotype. They are thereby likely to find continued and expanding clinical use, including in the current era of developing precision medicine, reporting on multiple pathogenic processes and supporting a precision medicine approach.
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Affiliation(s)
- Naila Rabbani
- Department of Basic Medical Science, College of Medicine, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar; Biomedical & Pharmaceutical Research Unit, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar.
| | - Paul J Thornalley
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, P.O. Box 34110, Doha, Qatar.
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Rock CA, Keeney S, Zakharchenko A, Takano H, Spiegel DA, Krieger AM, Ferrari G, Levy RJ. Model studies of advanced glycation end product modification of heterograft biomaterials: The effects of in vitro glucose, glyoxal, and serum albumin on collagen structure and mechanical properties. Acta Biomater 2021; 123:275-285. [PMID: 33444798 DOI: 10.1016/j.actbio.2020.12.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 12/17/2020] [Accepted: 12/22/2020] [Indexed: 01/01/2023]
Abstract
Glutaraldehyde cross-linked heterograft tissues, bovine pericardium (BP) or porcine aortic valves, are the leaflet materials in bioprosthetic heart valves (BHV) used in cardiac surgery for heart valve disease. BHV fail due to structural valve degeneration (SVD), often with calcification. Advanced glycation end products (AGE) are post-translational, non-enzymatic reaction products from sugars reducing proteins. AGE are present in SVD-BHV clinical explants and are not detectable in un-implanted BHV. Prior studies modeled BP-AGE formation in vitro with glyoxal, a glucose breakdown product, and serum albumin. However, glucose is the most abundant AGE precursor. Thus, the present studies investigated the hypothesis that BHV susceptibility to glucose related AGE, together with serum proteins, results in deterioration of collagen structure and mechanical properties. In vitro experiments studied AGE formation in BP and porcine collagen sponges (CS) comparing 14C-glucose and 14C-glyoxal with and without bovine serum albumin (BSA). Glucose incorporation occurred at a significantly lower level than glyoxal (p<0.02). BSA co-incubations demonstrated reduced glyoxal and glucose uptake by both BP and CS. BSA incubation caused a significant increase in BP mass, enhanced by glyoxal co-incubation. Two-photon microscopy of BP showed BSA induced disruption of collagen structure that was more severe with glucose or glyoxal co-incubation. Uniaxial testing of CS demonstrated that glucose or glyoxal together with BSA compared to controls, caused accelerated deterioration of viscoelastic relaxation, and increased stiffness over a 28-day time course. In conclusion, glucose, glyoxal and BSA uniquely contribute to AGE-mediated disruption of heterograft collagen structure and deterioration of mechanical properties.
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Affiliation(s)
- Christopher A Rock
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States
| | - Samuel Keeney
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States
| | - Andrey Zakharchenko
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States
| | - Hajime Takano
- Division of Neurology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States
| | - David A Spiegel
- Department of Chemistry, Yale University, New Haven, CT, 06520, United States
| | - Abba M Krieger
- Department of Statistics, The Wharton School, University of Pennsylvania, Philadelphia, PA, 19104, United States
| | - Giovanni Ferrari
- Departments of Surgery and Biomedical Engineering, Columbia University, New York, NY, 10032, United States
| | - Robert J Levy
- Division of Cardiology, Department of Pediatrics, The Children's Hospital of Philadelphia, Philadelphia, PA, 19104, United States.
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CUPRAC-Reactive Advanced Glycation End Products as Prognostic Markers of Human Acute Myocardial Infarction. Antioxidants (Basel) 2021; 10:antiox10030434. [PMID: 33799852 PMCID: PMC7999086 DOI: 10.3390/antiox10030434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/08/2021] [Accepted: 03/08/2021] [Indexed: 01/12/2023] Open
Abstract
Cardiovascular disorders, especially acute coronary syndromes, are among the leading causes of mortality worldwide, and advanced glycation end products (AGEs) are associated with cardiovascular disease and serve as biomarkers for diagnosis and prediction. In this study, we investigated the utility of AGEs as prognostic biomarkers for acute myocardial infarction (AMI). We measured AGEs in serum samples of AMI patients (N = 27) using the cupric ion reducing antioxidant capacity (CUPRAC) method on days 0, 2, 14, 30, and 90 after AMI, and the correlation of serum AGE concentration and post-AMI duration was determined using Spearman's correlation analysis. Compared to total serum protein, the level of CUPRAC reactive AGEs was increased from 0.9 to 2.1 times between 0-90 days after AMI incident. Furthermore, the glycation pattern and Spearman's correlation analysis revealed four dominant patterns of AGE concentration changes in AMI patients: stable AGE levels (straight line with no peak), continuous increase, single peak pattern, and multimodal pattern (two or more peaks). In conclusion, CUPRAC-reactive AGEs can be developed as a potential prognostic biomarker for AMI through long-term clinical studies.
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Mohiuddin MS, Himeno T, Yamada Y, Morishita Y, Kondo M, Tsunekawa S, Kato Y, Nakamura J, Kamiya H. Glucagon Prevents Cytotoxicity Induced by Methylglyoxal in a Rat Neuronal Cell Line Model. Biomolecules 2021; 11:biom11020287. [PMID: 33672050 PMCID: PMC7919475 DOI: 10.3390/biom11020287] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 12/14/2022] Open
Abstract
Although diabetic polyneuropathy (DPN) is a frequent diabetic complication, no effective therapeutic approach has been established. Glucagon is a crucial hormone for glucose homeostasis but has pleiotropic effects, including neuroprotective effects in the central nervous system. However, the importance of glucagon in the peripheral nervous system (PNS) has not been clarified. Here, we hypothesized that glucagon might have a neuroprotective function in the PNS. The immortalized rat dorsal root ganglion (DRG) neuronal cell line 50B11 was treated with methylglyoxal (MG) to mimic an in vitro DPN model. The cells were cultured with or without glucagon or MG. Neurotoxicity, survival, apoptosis, neurite projection, cyclic adenosine monophosphate (cAMP), and protein kinase A (PKA) were examined. Glucagon had no cytotoxicity and rescued the cells from neurotoxicity. Cell survival was increased by glucagon. The ratio of apoptotic cells, which was increased by MG, was reduced by glucagon. Neurite outgrowth was accelerated in glucagon-treated cells. Cyclic AMP and PKA accumulated in the cells after glucagon stimulation. In conclusion, glucagon protected the DRG neuronal cells from MG-induced cellular stress. The cAMP/PKA pathway may have significant roles in those protective effects of glucagon. Glucagon may be a potential target for the treatment of DPN.
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Rungratanawanich W, Qu Y, Wang X, Essa MM, Song BJ. Advanced glycation end products (AGEs) and other adducts in aging-related diseases and alcohol-mediated tissue injury. Exp Mol Med 2021; 53:168-188. [PMID: 33568752 PMCID: PMC8080618 DOI: 10.1038/s12276-021-00561-7] [Citation(s) in RCA: 125] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 01/30/2023] Open
Abstract
Advanced glycation end products (AGEs) are potentially harmful and heterogeneous molecules derived from nonenzymatic glycation. The pathological implications of AGEs are ascribed to their ability to promote oxidative stress, inflammation, and apoptosis. Recent studies in basic and translational research have revealed the contributing roles of AGEs in the development and progression of various aging-related pathological conditions, such as diabetes, cardiovascular complications, gut microbiome-associated illnesses, liver or neurodegenerative diseases, and cancer. Excessive chronic and/or acute binge consumption of alcohol (ethanol), a widely consumed addictive substance, is known to cause more than 200 diseases, including alcohol use disorder (addiction), alcoholic liver disease, and brain damage. However, despite the considerable amount of research in this area, the underlying molecular mechanisms by which alcohol abuse causes cellular toxicity and organ damage remain to be further characterized. In this review, we first briefly describe the properties of AGEs: their formation, accumulation, and receptor interactions. We then focus on the causative functions of AGEs that impact various aging-related diseases. We also highlight the biological connection of AGE-alcohol-adduct formations to alcohol-mediated tissue injury. Finally, we describe the potential translational research opportunities for treatment of various AGE- and/or alcohol-related adduct-associated disorders according to the mechanistic insights presented.
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Affiliation(s)
- Wiramon Rungratanawanich
- grid.420085.b0000 0004 0481 4802Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892 USA
| | - Ying Qu
- grid.420085.b0000 0004 0481 4802Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892 USA
| | - Xin Wang
- Neuroapoptosis Drug Discovery Laboratory, Department of Neurosurgery, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Boston, MA 02115 USA
| | - Musthafa Mohamed Essa
- grid.412846.d0000 0001 0726 9430Department of Food Science and Nutrition, Aging and Dementia Research Group, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khoud, Muscat, Oman ,grid.412846.d0000 0001 0726 9430Aging and Dementia Research Group, Sultan Qaboos University, Muscat, Oman
| | - Byoung-Joon Song
- grid.420085.b0000 0004 0481 4802Section of Molecular Pharmacology and Toxicology, Laboratory of Membrane Biochemistry and Biophysics, National Institute on Alcohol Abuse and Alcoholism, 9000 Rockville Pike, Bethesda, MD 20892 USA
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Gubitosi-Klug RA, Braffett BH, Hitt S, Arends V, Uschner D, Jones K, Diminick L, Karger AB, Paterson AD, Roshandel D, Marcovina S, Lachin JM, Steffes M, Palmer JP. Residual β cell function in long-term type 1 diabetes associates with reduced incidence of hypoglycemia. J Clin Invest 2021; 131:143011. [PMID: 33529168 PMCID: PMC7843223 DOI: 10.1172/jci143011] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 12/09/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUNDWe investigated residual β cell function in Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) study participants with an average 35-year duration of type 1 diabetes mellitus (T1DM).METHODSSerum C-peptide was measured during a 4-hour mixed-meal tolerance test. Associations with metabolic outcomes and complications were explored among nonresponders (all C-peptide values after meal <0.003 nmol/L) and 3 categories of responders, classified by peak C-peptide concentration (nmol/L) as high (>0.2), intermediate (>0.03 to ≤0.2), and low (≥ 0.003 to ≤0.03).RESULTSOf the 944 participants, 117 (12.4%) were classified as responders. Residual C-peptide concentrations were associated with higher DCCT baseline concentrations of stimulated C-peptide (P value for trend = 0.0001). Residual C-peptide secretion was not associated with current or mean HbA1c, HLA high-risk haplotypes for T1DM, or the current presence of T1DM autoantibodies. The proportion of subjects with a history of severe hypoglycemia was lower with high (27%) and intermediate (48%) residual C-peptide concentrations than with low (74%) and no (70%) residual C-peptide concentrations (P value for trend = 0.0001). Responders and nonresponders demonstrated similar rates of advanced microvascular complications.CONCLUSIONβ Cell function can persist in long-duration T1DM. With a peak C-peptide concentration of >0.03 nmol/L, we observed clinically meaningful reductions in the prevalence of severe hypoglycemia.TRIAL REGISTRATIONClinicalTrials.gov NCT00360815 and NCT00360893.FUNDINGDivision of Diabetes Endocrinology and Metabolic Diseases of the National Institute of Diabetes and Digestive and Kidney Diseases (DP3-DK104438, U01 DK094176, and U01 DK094157).
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Affiliation(s)
- Rose A. Gubitosi-Klug
- Rainbow Babies and Children’s Hospital, Case Western Reserve University, Cleveland, Ohio, USA
| | - Barbara H. Braffett
- The Biostatistics Center, George Washington University, Rockville, Maryland, USA
| | - Susan Hitt
- University of Missouri, Columbia, Missouri, USA
| | | | - Diane Uschner
- The Biostatistics Center, George Washington University, Rockville, Maryland, USA
| | | | - Lisa Diminick
- The Biostatistics Center, George Washington University, Rockville, Maryland, USA
| | - Amy B. Karger
- University of Minnesota, Minneapolis, Minnesota, USA
| | - Andrew D. Paterson
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada
- Divisions of Epidemiology and Biostatistics, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Delnaz Roshandel
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | | | - John M. Lachin
- The Biostatistics Center, George Washington University, Rockville, Maryland, USA
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Zhang Y, Jiang T, Liu C, Hu H, Dai F, Xia L, Zhang Q. Effectiveness of Early Advanced Glycation End Product Accumulation Testing in the Diagnosis of Diabetes: A Health Risk Factor Analysis Using the Body Mass Index as a Moderator. Front Endocrinol (Lausanne) 2021; 12:766778. [PMID: 35370932 PMCID: PMC8967381 DOI: 10.3389/fendo.2021.766778] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/08/2021] [Indexed: 12/22/2022] Open
Abstract
OBJECTIVE To evaluate the value of non-invasive detection of advanced glycation end products (AGEs) in the early screening of type 2 diabetes mellitus (T2DM) in the community of China. METHODS From January 2018 to January 2019, a total of 912 patients with community health physical examination and no history of T2DM were selected, excluding the results of missing value > 5%. Finally, 906 samples were included in the study, with a response rate of 99.3%. Non-invasive diabetic detection technology was used to detect AGEs in the upper arm skin of all participants, AGE accumulations were classified as ≤P25, P25∼P50, P50∼P75, and >P75; HbA1c, insulin, C-peptide, total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), creatinine, urea, and other indicators were measured at the same time. Univariate analysis of variance was used to compare the differences in general data, biochemical indexes, skin AGE levels, and blood glucose among groups, and logistic regression analysis and latent category analysis were performed. RESULTS In univariate analysis, SBP, FBG, HbA1c, and age were correlated with higher AGE (p < 0.01); TG, TC, HDL, UA, and gender were not positively correlated with AGE (p < 0.01). After controlling for covariates (waist circumference, hip circumference), AGE accumulation was interacted with other variables. The results of latent category analysis (LCA) showed that the health risk factors (HRFs), including age, systolic blood pressure, HbA1c, FBG, triglyceride, total cholesterol, HDL-C, and uric acid, were divided as three groups, and AGE is divided into four categories according to the quartile method, which were low risk (≤P25), low to medium risk (P25∼P50), medium to high (P50∼P75), and high risk (>P75), respectively. The association between the quartile AGE and risk factors of the OR values was 1.09 (95% CI: 1.42, 2.86), 2.61 (95% CI: 1.11, 6.14), and 5.41 (95% CI: 2.42, 12.07), respectively. The moderation analysis using the PROCESS program was used to analyze whether BMI moderated the link between risk factors and AGE accumulation. There was also a significant three-way interaction among HRFs, BMI, and gender for AGE accumulation in the total sample (β = -0.30). CONCLUSION Non-invasive skin detection of AGEs has a certain application value for the assessment of T2DM risk and is related to a variety of risk factors.
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Affiliation(s)
- Yi Zhang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, China
| | - Tian Jiang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chao Liu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Honglin Hu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Fang Dai
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Li Xia
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Qiu Zhang
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- *Correspondence: Qiu Zhang,
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Strom A, Strassburger K, Schmuck M, Shevalye H, Davidson E, Zivehe F, Bönhof G, Reimer R, Belgardt BF, Fleming T, Biermann B, Burkart V, Müssig K, Szendroedi J, Yorek MA, Fritsche E, Nawroth PP, Roden M, Ziegler D. Interaction between magnesium and methylglyoxal in diabetic polyneuropathy and neuronal models. Mol Metab 2020; 43:101114. [PMID: 33166742 PMCID: PMC7704399 DOI: 10.1016/j.molmet.2020.101114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/28/2022] Open
Abstract
Objective The lack of effective treatments against diabetic sensorimotor polyneuropathy demands the search for new strategies to combat or prevent the condition. Because reduced magnesium and increased methylglyoxal levels have been implicated in the development of both type 2 diabetes and neuropathic pain, we aimed to assess the putative interplay of both molecules with diabetic sensorimotor polyneuropathy. Methods In a cross-sectional study, serum magnesium and plasma methylglyoxal levels were measured in recently diagnosed type 2 diabetes patients with (n = 51) and without (n = 184) diabetic sensorimotor polyneuropathy from the German Diabetes Study baseline cohort. Peripheral nerve function was assessed using nerve conduction velocity and quantitative sensory testing. Human neuroblastoma cells (SH-SY5Y) and mouse dorsal root ganglia cells were used to characterize the neurotoxic effect of methylglyoxal and/or neuroprotective effect of magnesium. Results Here, we demonstrate that serum magnesium concentration was reduced in recently diagnosed type 2 diabetes patients with diabetic sensorimotor polyneuropathy and inversely associated with plasma methylglyoxal concentration. Magnesium, methylglyoxal, and, importantly, their interaction were strongly interrelated with methylglyoxal-dependent nerve dysfunction and were predictive of changes in nerve function. Magnesium supplementation prevented methylglyoxal neurotoxicity in differentiated SH-SY5Y neuron-like cells due to reduction of intracellular methylglyoxal formation, while supplementation with the divalent cations zinc and manganese had no effect on methylglyoxal neurotoxicity. Furthermore, the downregulation of mitochondrial activity in mouse dorsal root ganglia cells and consequently the enrichment of triosephosphates, the primary source of methylglyoxal, resulted in neurite degeneration, which was completely prevented through magnesium supplementation. Conclusions These multifaceted findings reveal a novel putative pathophysiological pathway of hypomagnesemia-induced carbonyl stress leading to neuronal damage and merit further investigations not only for diabetic sensorimotor polyneuropathy but also other neurodegenerative diseases associated with magnesium deficiency and impaired energy metabolism. Magnesium and methylglyoxal levels were inversely associated in individuals with type 2 diabetes and distal sensorimotor polyneuropathy. Magnesium, methylglyoxal, and their interaction were associated with methylglyoxal-dependent nerve dysfunction. Under experimental conditions, magnesium supplementation prevented methylglyoxal-mediated neurotoxicity. Magnesium downregulates intracellular methylglyoxal production.
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Affiliation(s)
- Alexander Strom
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany.
| | - Klaus Strassburger
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany; Institute for Biometrics and Epidemiology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Martin Schmuck
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Hanna Shevalye
- Department of Internal Medicine, University of Iowa, Iowa City, USA
| | - Eric Davidson
- Department of Internal Medicine, University of Iowa, Iowa City, USA
| | - Fariba Zivehe
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Gidon Bönhof
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Rudolph Reimer
- Microscopy and Image Analysis Technology Platform, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Bengt-Frederik Belgardt
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany; Institute for Vascular and Islet Cell Biology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany
| | - Thomas Fleming
- Department of Medicine I and Clinical Chemistry, University Hospital Heidelberg, Heidelberg, Germany
| | - Barbara Biermann
- Institute of Neural and Sensory Physiology, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany
| | - Volker Burkart
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Karsten Müssig
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany; Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Julia Szendroedi
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany; Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Mark A Yorek
- Department of Internal Medicine, University of Iowa, Iowa City, USA; Iowa City VA Healthcare System, Iowa City, USA
| | - Ellen Fritsche
- IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, Germany
| | - Peter P Nawroth
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany; Department of Medicine I and Clinical Chemistry, University Hospital Heidelberg, Heidelberg, Germany
| | - Michael Roden
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany; Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Dan Ziegler
- Institute for Clinical Diabetology, German Diabetes Center at Heinrich Heine University, Leibniz Center for Diabetes Research, Düsseldorf, Germany; German Center for Diabetes Research (DZD), München-Neuherberg, Germany; Division of Endocrinology and Diabetology, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany.
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Aragonès G, Rowan S, G Francisco S, Yang W, Weinberg J, Taylor A, Bejarano E. Glyoxalase System as a Therapeutic Target against Diabetic Retinopathy. Antioxidants (Basel) 2020; 9:antiox9111062. [PMID: 33143048 PMCID: PMC7692619 DOI: 10.3390/antiox9111062] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/25/2020] [Accepted: 10/27/2020] [Indexed: 12/14/2022] Open
Abstract
Hyperglycemia, a defining characteristic of diabetes, combined with oxidative stress, results in the formation of advanced glycation end products (AGEs). AGEs are toxic compounds that have adverse effects on many tissues including the retina and lens. AGEs promote the formation of reactive oxygen species (ROS), which, in turn, boost the production of AGEs, resulting in positive feedback loops, a vicious cycle that compromises tissue fitness. Oxidative stress and the accumulation of AGEs are etiologically associated with the pathogenesis of multiple diseases including diabetic retinopathy (DR). DR is a devastating microvascular complication of diabetes mellitus and the leading cause of blindness in working-age adults. The onset and development of DR is multifactorial. Lowering AGEs accumulation may represent a potential therapeutic approach to slow this sight-threatening diabetic complication. To set DR in a physiological context, in this review we first describe relations between oxidative stress, formation of AGEs, and aging in several tissues of the eye, each of which is associated with a major age-related eye pathology. We summarize mechanisms of AGEs generation and anti-AGEs detoxifying systems. We specifically feature the potential of the glyoxalase system in the retina in the prevention of AGEs-associated damage linked to DR. We provide a comparative analysis of glyoxalase activity in different tissues from wild-type mice, supporting a major role for the glyoxalase system in the detoxification of AGEs in the retina, and present the manipulation of this system as a therapeutic strategy to prevent the onset of DR.
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Affiliation(s)
- Gemma Aragonès
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02155, USA; (G.A.); (S.R.); (S.G.F.); (W.Y.); (J.W.)
| | - Sheldon Rowan
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02155, USA; (G.A.); (S.R.); (S.G.F.); (W.Y.); (J.W.)
- Department of Ophthalmology, Tufts University School of Medicine, Boston, MA 02155, USA
- Friedman School of Nutrition and Science Policy, Tufts University, Boston, MA 02155, USA
| | - Sarah G Francisco
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02155, USA; (G.A.); (S.R.); (S.G.F.); (W.Y.); (J.W.)
| | - Wenxin Yang
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02155, USA; (G.A.); (S.R.); (S.G.F.); (W.Y.); (J.W.)
| | - Jasper Weinberg
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02155, USA; (G.A.); (S.R.); (S.G.F.); (W.Y.); (J.W.)
| | - Allen Taylor
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02155, USA; (G.A.); (S.R.); (S.G.F.); (W.Y.); (J.W.)
- Department of Ophthalmology, Tufts University School of Medicine, Boston, MA 02155, USA
- Friedman School of Nutrition and Science Policy, Tufts University, Boston, MA 02155, USA
- Correspondence: (A.T.); (E.B.); Tel.: +617-556-3156 (A.T.)
| | - Eloy Bejarano
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02155, USA; (G.A.); (S.R.); (S.G.F.); (W.Y.); (J.W.)
- Universidad Cardenal Herrera-CEU, CEU Universities, 46115 Valencia, Spain
- Correspondence: (A.T.); (E.B.); Tel.: +617-556-3156 (A.T.)
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Johra FT, Bepari AK, Bristy AT, Reza HM. A Mechanistic Review of β-Carotene, Lutein, and Zeaxanthin in Eye Health and Disease. Antioxidants (Basel) 2020; 9:E1046. [PMID: 33114699 PMCID: PMC7692753 DOI: 10.3390/antiox9111046] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 10/21/2020] [Accepted: 10/22/2020] [Indexed: 12/23/2022] Open
Abstract
Carotenoids are natural lipid-soluble antioxidants abundantly found as colorful pigments in fruits and vegetables. At least 600 carotenoids occur naturally, although about 20 of them, including β-carotene, α-carotene, lycopene, lutein, zeaxanthin, meso-zeaxanthin, and cryptoxanthin, are detectable in the human blood. They have distinct physiological and pathophysiological functions ranging from fetal development to adult homeostasis. β-carotene is a precursor of vitamin A that essentially functions in many biological processes including vision. The human macula lutea and eye lens are rich in lutein, zeaxanthin, and meso-zeaxanthin, collectively known as macular xanthophylls, which help maintain eye health and prevent ophthalmic diseases. Ocular carotenoids absorb light from the visible region (400-500 nm wavelength), enabling them to protect the retina and lens from potential photochemical damage induced by light exposure. These natural antioxidants also aid in quenching free radicals produced by complex physiological reactions and, consequently, protect the eye from oxidative stress, apoptosis, mitochondrial dysfunction, and inflammation. This review discusses the protective mechanisms of macular xanthophylls in preventing eye diseases such as cataract, age-related macular degeneration, and diabetic retinopathy. Moreover, some preclinical animal studies and some clinical trials are discussed briefly to understand carotenoid safety and efficacy.
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Affiliation(s)
| | | | | | - Hasan Mahmud Reza
- Department of Pharmaceutical Sciences, School of Health and Life Sciences, North South University, Bashundhara R/A, Dhaka 1229, Bangladesh; (F.T.J.); (A.K.B.); (A.T.B.)
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Streeter MD, Rowan S, Ray J, McDonald DM, Volkin J, Clark J, Taylor A, Spiegel DA. Generation and Characterization of Anti-Glucosepane Antibodies Enabling Direct Detection of Glucosepane in Retinal Tissue. ACS Chem Biol 2020; 15:2655-2661. [PMID: 32975399 PMCID: PMC10625846 DOI: 10.1021/acschembio.0c00093] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Although there is ample evidence that the advanced glycation end-product (AGE) glucosepane contributes to age-related morbidities and diabetic complications, the impact of glucosepane modifications on proteins has not been extensively explored due to the lack of sufficient analytical tools. Here, we report the development of the first polyclonal anti-glucosepane antibodies using a synthetic immunogen that contains the core bicyclic ring structure of glucosepane. We investigate the recognition properties of these antibodies through ELISAs involving an array of synthetic AGE derivatives and determine them to be both high-affinity and selective in binding glucosepane. We then employ these antibodies to image glucosepane in aging mouse retinae via immunohistochemistry. Our studies demonstrate for the first time accumulation of glucosepane within the retinal pigment epithelium, Bruch's membrane, and choroid: all regions of the eye impacted by age-related macular degeneration. Co-localization studies further suggest that glucosepane colocalizes with lipofuscin, which has previously been associated with lysosomal dysfunction and has been implicated in the development of age-related macular degeneration, among other diseases. We believe that the anti-glucosepane antibodies described in this study will prove highly useful for examining the role of glycation in human health and disease.
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Affiliation(s)
- Matthew D Streeter
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06511, United States
| | - Sheldon Rowan
- Tufts University, JM-USDA Human Nutrition Research Center on Aging, 711 Washington Street, Boston, Massachusetts 02111, United States
| | - Jason Ray
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06511, United States
| | - David M McDonald
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06511, United States
| | - Jonathan Volkin
- Tufts University, JM-USDA Human Nutrition Research Center on Aging, 711 Washington Street, Boston, Massachusetts 02111, United States
| | - Jonathan Clark
- Biological Chemistry Laboratory, Babraham Institute, Cambridge CB21 3AT, United Kingdom
| | - Allen Taylor
- Tufts University, JM-USDA Human Nutrition Research Center on Aging, 711 Washington Street, Boston, Massachusetts 02111, United States
| | - David A Spiegel
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06511, United States
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Park M, Nishimura T, Baeza-Garza CD, Caldwell ST, Pun PBL, Prag HA, Young T, Sauchanka O, Logan A, Forkink M, Gruszczyk AV, Prime TA, Arndt S, Naudi A, Pamplona R, Coughlan MT, Tate M, Ritchie RH, Caicci F, Kaludercic N, Di Lisa F, Smith RAJ, Hartley RC, Murphy MP, Krieg T. Confirmation of the Cardioprotective Effect of MitoGamide in the Diabetic Heart. Cardiovasc Drugs Ther 2020; 34:823-834. [PMID: 32979176 PMCID: PMC7674384 DOI: 10.1007/s10557-020-07086-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/17/2020] [Indexed: 12/13/2022]
Abstract
Purpose HFpEF (heart failure with preserved ejection fraction) is a major consequence of diabetic cardiomyopathy with no effective treatments. Here, we have characterized Akita mice as a preclinical model of HFpEF and used it to confirm the therapeutic efficacy of the mitochondria-targeted dicarbonyl scavenger, MitoGamide. Methods and Results A longitudinal echocardiographic analysis confirmed that Akita mice develop diastolic dysfunction with reduced E peak velocity, E/A ratio and extended isovolumetric relaxation time (IVRT), while the systolic function remains comparable with wild-type mice. The myocardium of Akita mice had a decreased ATP/ADP ratio, elevated mitochondrial oxidative stress and increased organelle density, compared with that of wild-type mice. MitoGamide, a mitochondria-targeted 1,2-dicarbonyl scavenger, exhibited good stability in vivo, uptake into cells and mitochondria and reactivity with dicarbonyls. Treatment of Akita mice with MitoGamide for 12 weeks significantly improved the E/A ratio compared with the vehicle-treated group. Conclusion Our work confirms that the Akita mouse model of diabetes replicates key clinical features of diabetic HFpEF, including cardiac and mitochondrial dysfunction. Furthermore, in this independent study, MitoGamide treatment improved diastolic function in Akita mice. Electronic supplementary material The online version of this article (10.1007/s10557-020-07086-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Min Park
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Takanori Nishimura
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK.,Takeda Pharmaceutical Ltd, Tokyo, Japan
| | | | | | | | - Hiran A Prag
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Tim Young
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Olga Sauchanka
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Angela Logan
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Marleen Forkink
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Anja V Gruszczyk
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Tracy A Prime
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Sabine Arndt
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Alba Naudi
- Department Of Experimental Medicine, University of Lleida, Lleida Institute for Biomedical Research, Lleida, Spain
| | - Reinald Pamplona
- Department Of Experimental Medicine, University of Lleida, Lleida Institute for Biomedical Research, Lleida, Spain
| | | | - Mitchel Tate
- Department of Diabetes, Monash University, Melbourne, Australia.,Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Rebecca H Ritchie
- Department of Diabetes, Monash University, Melbourne, Australia.,Baker Heart and Diabetes Institute, Melbourne, Australia
| | | | - Nina Kaludercic
- Neuroscience Institute, National Research Council of Italy (CNR), Pisa, Italy
| | - Fabio Di Lisa
- Department of Biomedical Sciences, University of Padova, Padua, Italy
| | - Robin A J Smith
- Department of Chemistry, University of Otago, Otago, New Zealand
| | | | - Michael P Murphy
- Department of Medicine, University of Cambridge, Cambridge, UK.,MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Thomas Krieg
- Department of Medicine, University of Cambridge, Cambridge, UK.
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Al-Sofiani M, MacLeod S, Ghanim H, Stecker N, Hall J, Lippes H. Type 1 diabetes and hearing loss: Audiometric assessment and measurement of circulating levels of soluble receptor for advanced glycation end products. Diabetes Metab Res Rev 2020; 36:e3312. [PMID: 32191386 DOI: 10.1002/dmrr.3312] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 12/25/2019] [Accepted: 03/08/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND We examined the hearing function in adults with and without type 1 diabetes (T1D) to investigate whether an association exists between hearing loss and duration of diabetes, haemoglobin A1C level, diabetes complications and levels of select serum and urinary biomarkers. METHODS We measured pure tone audiometry (PTA) thresholds; serum levels of C-reactive protein (CRP), vascular endothelial growth factor (VEGF), soluble receptors for advanced glycation end-product (sRAGE); and urinary isoprostane in 30 adults with T1D (age 43.8 ± 11.4 years). We also measured PTA thresholds in 11 adults without diabetes (age 53 ± 5.5 years). RESULTS 63.3% of adults with T1D had high-frequency hearing loss. Among adults with T1D, those with hearing loss were older (48.2 vs 36.2 years old, P < .01), had a longer duration of diabetes (30.7 vs 21.2 years, P = .02), a greater prevalence of peripheral neuropathy (57.9 vs 9.1%, P = .02) and significantly lower median levels of sRAGE (1054.27 vs 1306.83 pg/mL, P = .03) compared to those with normal hearing. Adults with T1D between the ages of 40 and 60 years old, who had diabetes for ≥35 years, had significantly higher PTA thresholds at both 500and 8000 Hz than age-matched adults without diabetes. CONCLUSIONS A significant proportion of adults with T1D have high-frequency hearing loss before age of 60 that is positively associated with age, duration of diabetes and presence of peripheral neuropathy. Our results are in support of previous studies suggesting a potential protective role of sRAGE against AGE toxicity and diabetes complications.
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Affiliation(s)
- Mohammed Al-Sofiani
- Endocrinology Unit, Department of Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia
- Division of Endocrinology, Diabetes & Metabolism, The Johns Hopkins University, Baltimore, Maryland, USA
- Strategic Center for Diabetes Research, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Sara MacLeod
- Internal Medicine, State University of New York at Buffalo, Catholic Health System, Buffalo, New York, USA
| | - Husam Ghanim
- Division of Endocrinology, Diabetes and Metabolism, State University of New York at Buffalo, Kaleida Health, Buffalo, New York, USA
| | - Nancy Stecker
- Department of Communicative Disorders and Sciences, State University of New York at Buffalo, Buffalo, New York, USA
| | - John Hall
- Internal Medicine, State University of New York at Buffalo, Catholic Health System, Buffalo, New York, USA
| | - Howard Lippes
- Internal Medicine, State University of New York at Buffalo, Catholic Health System, Buffalo, New York, USA
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Brings S, Fleming T, Herzig S, Nawroth PP, Kopf S. Urinary cathepsin L is predictive of changes in albuminuria and correlates with glucosepane in patients with type 2 diabetes in a closed-cohort study. J Diabetes Complications 2020; 34:107648. [PMID: 32532588 DOI: 10.1016/j.jdiacomp.2020.107648] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/28/2020] [Accepted: 05/28/2020] [Indexed: 10/24/2022]
Abstract
AIMS Cathepsin D (CTSD) and L (CTSL) are lysosomal proteases which degrade and detoxify advanced glycation end product (AGE)-modified proteins which are predictive of the development of diabetic nephropathy. We aimed to quantify cathepsin levels in urine from patients with type 2 diabetes and to relate these to the amount of urinary free AGEs at baseline and with kidney function after four years of follow-up in this closed cohort study. METHODS We established and validated a LC MS/MS method for the quantification of CTSD and CTSL in urine. Patients with type 2 diabetes were screened for diabetic kidney disease and 141 patients were seen at baseline and after four years. CTSD and CTSL and free AGEs were quantified in urine by LC MS/MS at baseline in these patients. RESULTS The detection limit of CTSD and CTSL in urine was 2.4 ng/l and 19.1 ng/l, respectively. CTSD (p < 0.0001, r = 0.555) and CTSL (p < 0.0001, r = 0.608) correlated positively with albuminuria at time of recruitment. In addition levels of the proteases but not albuminuria correlated with urinary levels of the major cross-linking AGE glucosepane (CTSD: p = 0.012, r = 0.225; CTSL: p < 0.001, r = 0.376). A strong non-linear association between CTSD (r = 0.568), CTSL (r = 0.588) and change in albuminuria over four years was present. High levels of CTSL (p = 0.007, beta = -0.366) were associated with an improvement of albuminuria after four years. CONCLUSIONS A sensitive LC MS/MS assay for the quantification of CTSD and CTSL in urine was established. High CTSL baseline levels were associated with an improvement in albuminuria at follow-up. An increased excretion and thus detoxification of the free form of the pathogenic cross-linking AGE glucosepane could explain the positive predictive value of high CTSL levels on albuminuria.
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Affiliation(s)
- Sebastian Brings
- Department of internal medicine I and clinical chemistry, University Hospital Heidelberg, Heidelberg, Germany.
| | - Thomas Fleming
- Department of internal medicine I and clinical chemistry, University Hospital Heidelberg, Heidelberg, Germany
| | - Stephan Herzig
- German Center for Diabetes Research (DZD), Neuherberg, Germany; Institute for Diabetes and Cancer (IDC), Helmholtz Center, Neuherberg, Germany; Joint Heidelberg-IDC Translational Diabetes Program, Helmholtz Center, Neuherberg, Germany
| | - Peter P Nawroth
- Department of internal medicine I and clinical chemistry, University Hospital Heidelberg, Heidelberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany; Joint Heidelberg-IDC Translational Diabetes Program, Department of internal medicine I and clinical chemistry, University Hospital Heidelberg, Heidelberg, Germany
| | - Stefan Kopf
- Department of internal medicine I and clinical chemistry, University Hospital Heidelberg, Heidelberg, Germany; German Center for Diabetes Research (DZD), Neuherberg, Germany
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Perkins BA, Rabbani N, Weston A, Adaikalakoteswari A, Lee JA, Lovblom LE, Cardinez N, Thornalley PJ. High fractional excretion of glycation adducts is associated with subsequent early decline in renal function in type 1 diabetes. Sci Rep 2020; 10:12709. [PMID: 32728119 PMCID: PMC7391737 DOI: 10.1038/s41598-020-69350-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 06/10/2020] [Indexed: 12/18/2022] Open
Abstract
Increased protein glycation, oxidation and nitration is linked to the development of diabetic nephropathy. We reported levels of serum protein glycation, oxidation and nitration and related hydrolysis products, glycation, oxidation and nitration free adducts in patients with type 1 diabetes (T1DM) during onset of microalbuminuria (MA) from the First Joslin Kidney Study, a prospective case-control study of patients with T1DM with and without early decline in GFR. Herein we report urinary excretion of the latter analytes and related fractional excretion values, exploring the link to MA and early decline in GFR. We recruited patients with T1DM and normoalbuminuria (NA) (n = 30) or new onset MA with and without early GFR decline (n = 22 and 33, respectively) for this study. We determined urinary protein glycation, oxidation and nitration free adducts by stable isotopic dilution analysis liquid chromatography-tandem mass spectrometry (LC-MS/MS) and deduced fractional excretion using reported plasma levels and urinary and plasma creatinine estimates. We found urinary excretion of pentosidine was increased ca. twofold in patients with MA, compared to normoalbuminuria (0.0442 vs 0.0103 nmol/mg creatinine, P < 0.0001), and increased ca. threefold in patients with early decline in GFR, compared to patients with stable GFR (0.0561 vs 0.0176 nmol/mg creatinine, P < 0.01). Urinary excretion of all other analytes was unchanged between the study groups. Remarkably, fractional excretions of 6 lysine and arginine-derived glycation free adducts were higher in patients with early decline in GFR, compared to those with stable GFR. Impaired tubular reuptake of glycation free adducts by lysine and arginine transporter proteins in patients with early GFR decline is likely involved. We conclude that higher fractional excretions of glycation adducts are potential biomarkers for early GFR decline in T1DM and MA. Measurement of these analytes could provide the basis for identifying patients at risk of early decline in renal function to target and intensify renoprotective treatment.
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Affiliation(s)
- Bruce A Perkins
- Division of Endocrinology and Metabolism, Department of Medicine, University of Toronto, Mount Sinai Hospital, Toronto, ON, Canada
| | - Naila Rabbani
- Department of Basic Medical Science, College of Medicine, QU Health, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Andrew Weston
- Clinical Sciences Research Institute, Warwick Medical School, University of Warwick, Coventry, UK.,University College London School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Antonysunil Adaikalakoteswari
- Clinical Sciences Research Institute, Warwick Medical School, University of Warwick, Coventry, UK.,School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - Justin A Lee
- Division of Endocrinology and Metabolism, Department of Medicine, University of Toronto, Mount Sinai Hospital, Toronto, ON, Canada
| | - Leif E Lovblom
- Division of Endocrinology and Metabolism, Department of Medicine, University of Toronto, Mount Sinai Hospital, Toronto, ON, Canada
| | - Nancy Cardinez
- Division of Endocrinology and Metabolism, Department of Medicine, University of Toronto, Mount Sinai Hospital, Toronto, ON, Canada
| | - Paul J Thornalley
- Clinical Sciences Research Institute, Warwick Medical School, University of Warwick, Coventry, UK. .,Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, P.O. Box 34110, Doha, Qatar.
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Fan X, Sell DR, Hao C, Liu S, Wang B, Wesson DW, Siedlak S, Zhu X, Kavanagh TJ, Harrison FE, Monnier VM. Vitamin C is a source of oxoaldehyde and glycative stress in age-related cataract and neurodegenerative diseases. Aging Cell 2020; 19:e13176. [PMID: 32567221 PMCID: PMC7418511 DOI: 10.1111/acel.13176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 04/22/2020] [Accepted: 05/11/2020] [Indexed: 12/03/2022] Open
Abstract
Oxoaldehyde stress has recently emerged as a major source of tissue damage in aging and age-related diseases. The prevailing mechanism involves methylglyoxal production during glycolysis and modification of arginine residues through the formation of methylglyoxal hydroimidazolones (MG-H1). We now tested the hypothesis that oxidation of vitamin C (ascorbic acid or ASA) contributes to this damage when the homeostatic redox balance is disrupted especially in ASA-rich tissues such as the eye lens and brain. MG-H1 measured by liquid chromatography mass spectrometry is several fold increased in the lens and brain from transgenic mice expressing human vitamin C transporter 2 (hSVCT2). Similarly, MG-H1 levels are increased two- to fourfold in hippocampus extracts from individuals with Alzheimer's disease (AD), and significantly higher levels are present in sarkosyl-insoluble tissue fractions from AD brain proteins than in the soluble fractions. Moreover, immunostaining with antibodies against methylglyoxal hydroimidazolones reveals similar increase in substantia nigra neurons from individuals with Parkinson's disease. Results from an in vitro incubation experiment suggest that accumulated catalytic metal ions in the hippocampus during aging could readily accelerate ASA oxidation and such acceleration was significantly enhanced in AD. Modeling studies and intraventricular injection of 13 C-labeled ASA revealed that ASA backbone carbons 4-6 are incorporated into MG-H1 both in vitro and in vivo, likely via a glyceraldehyde precursor. We propose that drugs that prevent oxoaldehyde stress or excessive ASA oxidation may protect against age-related cataract and neurodegenerative diseases.
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Affiliation(s)
- Xingjun Fan
- Department of Cellular Biology and AnatomyMedical College of Georgia at Augusta UniversityAugustaGeorgia
- Department of PathologyCase Western Reserve UniversityClevelandOhioUSA
| | - David R. Sell
- Department of PathologyCase Western Reserve UniversityClevelandOhioUSA
| | - Caili Hao
- Department of Cellular Biology and AnatomyMedical College of Georgia at Augusta UniversityAugustaGeorgia
| | | | - Benlian Wang
- Center for ProteomicsCase Western Reserve UniversityClevelandOhioUSA
| | - Daniel W. Wesson
- NeurosciencesCase Western Reserve UniversityClevelandOhioUSA
- Present address:
Department of Pharmacology & TherapeuticsUniversity of FloridaGainesvilleFloridaUSA
| | - Sandra Siedlak
- Department of PathologyCase Western Reserve UniversityClevelandOhioUSA
| | - Xiongwei Zhu
- Department of PathologyCase Western Reserve UniversityClevelandOhioUSA
| | - Terrance J. Kavanagh
- Department of Environmental and Occupational Health SciencesUniversity of WashingtonSeattleWashingtonUSA
| | - Fiona E. Harrison
- Department of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Vincent M. Monnier
- Department of PathologyCase Western Reserve UniversityClevelandOhioUSA
- BiochemistryCase Western Reserve UniversityClevelandOhioUSA
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47
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Lutein Supplementation for Eye Diseases. Nutrients 2020; 12:nu12061721. [PMID: 32526861 PMCID: PMC7352796 DOI: 10.3390/nu12061721] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 02/07/2023] Open
Abstract
Lutein is one of the few xanthophyll carotenoids that is found in high concentration in the macula of human retina. As de novo synthesis of lutein within the human body is impossible, lutein can only be obtained from diet. It is a natural substance abundant in egg yolk and dark green leafy vegetables. Many basic and clinical studies have reported lutein's anti-oxidative and anti-inflammatory properties in the eye, suggesting its beneficial effects on protection and alleviation of ocular diseases such as age-related macular degeneration, diabetic retinopathy, retinopathy of prematurity, myopia, and cataract. Most importantly, lutein is categorized as Generally Regarded as Safe (GRAS), posing minimal side-effects upon long term consumption. In this review, we will discuss the chemical structure and properties of lutein as well as its application and safety as a nutritional supplement. Finally, the effects of lutein consumption on the aforementioned eye diseases will be reviewed.
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Omae K, Kurita N, Takahashi S, Fukuma S, Yamamoto Y, Fukuhara S. Association of advanced glycation end-product accumulation with overactive bladder in community-dwelling elderly: A cross-sectional Sukagawa study. Asian J Urol 2020; 8:189-196. [PMID: 33996475 PMCID: PMC8099641 DOI: 10.1016/j.ajur.2020.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 12/16/2019] [Accepted: 12/31/2019] [Indexed: 11/24/2022] Open
Abstract
Objective This study aimed to evaluate the influence of advanced glycation end-product (AGE) accumulation on the prevalence and severity of overactive bladder (OAB) in community-dwelling elderly adults. Methods We conducted a cross-sectional study involving 269 Japanese community dwellers aged ≥75 years in 2015. AGE accumulation was non-invasively measured via skin autofluorescence (SAF) values using AGE Reader. The primary and secondary outcomes were the presence and severity of OAB evaluated using the Overactive Bladder Symptom Score (OABSS). Individuals with an urgency score of ≥2 and sum score of ≥3 were considered to have OAB. The associations of SAF with the prevalence and severity of OAB were assessed using logistic and linear regression models, respectively, adjusted for clinically important confounders. Results The median age of participants was 78 years. Of 269 participants, 110 (40.9%) were men and 75 (27.9%) had OAB. The median SAF was 2.2 arbitrary units (AUs). Increasing median SAF was observed with increasing age. Multivariable analysis revealed that SAF was not associated with either the likelihood of having OAB (odds ratio per AU=0.77, 95% confidence interval: 0.37–1.62) or the natural log-transformed OABSS (β per AU=−0.07, 95% confidence interval: −0.26–0.12). Conclusions In this study, AGE accumulation, as assessed by SAF, was not associated with the prevalence and severity of OAB in Japanese community-dwelling elderly people aged ≥75 years.
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Affiliation(s)
- Kenji Omae
- Kyoto University, School of Public Health in the Graduate School of Medicine, Department of Healthcare Epidemiology, Yoshida Konoe-cho, Sakyo-ku, Kyoto, Japan.,Fukushima Medical University, Center for Innovative Research for Communities and Clinical Excellence, 1 Hikarigaoka, Fukushima City, Fukushima, Japan.,Fukushima Medical University Hospital, Department of Innovative Research and Education for Clinicians and Trainees, 1 Hikarigaoka, Fukushima City, Fukushima, Japan.,Tokyo Women's Medical University, Department of Urology, 8-1 Kawada-cho, Shinjuku-ku, Tokyo, Japan
| | - Noriaki Kurita
- Fukushima Medical University, Center for Innovative Research for Communities and Clinical Excellence, 1 Hikarigaoka, Fukushima City, Fukushima, Japan.,Fukushima Medical University Hospital, Department of Innovative Research and Education for Clinicians and Trainees, 1 Hikarigaoka, Fukushima City, Fukushima, Japan.,Fukushima Medical University, Graduate School of Medicine, Department of Clinical Epidemiology, 1 Hikarigaoka, Fukushima City, Fukushima, Japan
| | - Sei Takahashi
- Kyoto University, School of Public Health in the Graduate School of Medicine, Department of Healthcare Epidemiology, Yoshida Konoe-cho, Sakyo-ku, Kyoto, Japan.,Fukushima Medical University, Center for Innovative Research for Communities and Clinical Excellence, 1 Hikarigaoka, Fukushima City, Fukushima, Japan
| | - Shingo Fukuma
- Fukushima Medical University, Center for Innovative Research for Communities and Clinical Excellence, 1 Hikarigaoka, Fukushima City, Fukushima, Japan.,Kyoto University, Graduate School of Medicine, Human Health Sciences, Yoshida Konoe-cho, Sakyo-ku, Kyoto, Japan
| | - Yosuke Yamamoto
- Kyoto University, School of Public Health in the Graduate School of Medicine, Department of Healthcare Epidemiology, Yoshida Konoe-cho, Sakyo-ku, Kyoto, Japan
| | - Shunichi Fukuhara
- Kyoto University, School of Public Health in the Graduate School of Medicine, Department of Healthcare Epidemiology, Yoshida Konoe-cho, Sakyo-ku, Kyoto, Japan.,Fukushima Medical University, Center for Innovative Research for Communities and Clinical Excellence, 1 Hikarigaoka, Fukushima City, Fukushima, Japan
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Patel DM, Bose M, Cooper ME. Glucose and Blood Pressure-Dependent Pathways-The Progression of Diabetic Kidney Disease. Int J Mol Sci 2020; 21:ijms21062218. [PMID: 32210089 PMCID: PMC7139394 DOI: 10.3390/ijms21062218] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/17/2020] [Accepted: 03/17/2020] [Indexed: 12/11/2022] Open
Abstract
The major clinical associations with the progression of diabetic kidney disease (DKD) are glycemic control and systemic hypertension. Recent studies have continued to emphasize vasoactive hormone pathways including aldosterone and endothelin which suggest a key role for vasoconstrictor pathways in promoting renal damage in diabetes. The role of glucose per se remains difficult to define in DKD but appears to involve key intermediates including reactive oxygen species (ROS) and dicarbonyls such as methylglyoxal which activate intracellular pathways to promote fibrosis and inflammation in the kidney. Recent studies have identified a novel molecular interaction between hemodynamic and metabolic pathways which could lead to new treatments for DKD. This should lead to a further improvement in the outlook of DKD building on positive results from RAAS blockade and more recently newer classes of glucose-lowering agents such as SGLT2 inhibitors and GLP1 receptor agonists.
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Affiliation(s)
- Devang M. Patel
- Department of Diabetes, Monash University Central, Clinical School, Melbourne, VIC 3004, Australia;
- Correspondence: (D.M.P.); (M.E.C.)
| | - Madhura Bose
- Department of Diabetes, Monash University Central, Clinical School, Melbourne, VIC 3004, Australia;
| | - Mark E. Cooper
- Department of Diabetes, Monash University Central, Clinical School, Melbourne, VIC 3004, Australia;
- Department of Endocrinology and Diabetes, The Alfred Hospital, Melbourne, VIC 3004, Australia
- Correspondence: (D.M.P.); (M.E.C.)
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Dimitropoulos A, Rosado CJ, Thomas MC. Dicarbonyl-mediated AGEing and diabetic kidney disease. J Nephrol 2020; 33:909-915. [DOI: 10.1007/s40620-020-00718-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/05/2020] [Indexed: 12/22/2022]
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