1
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Zeylan M, Senyuz S, Picón-Pagès P, García-Elías A, Tajes M, Muñoz FJ, Oliva B, Garcia-Ojalvo J, Barbu E, Vicente R, Nattel S, Ois A, Puig-Pijoan A, Keskin O, Gursoy A. Shared Proteins and Pathways of Cardiovascular and Cognitive Diseases: Relation to Vascular Cognitive Impairment. J Proteome Res 2024; 23:560-573. [PMID: 38252700 PMCID: PMC10846560 DOI: 10.1021/acs.jproteome.3c00289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/29/2023] [Accepted: 12/06/2023] [Indexed: 01/24/2024]
Abstract
One of the primary goals of systems medicine is the detection of putative proteins and pathways involved in disease progression and pathological phenotypes. Vascular cognitive impairment (VCI) is a heterogeneous condition manifesting as cognitive impairment resulting from vascular factors. The precise mechanisms underlying this relationship remain unclear, which poses challenges for experimental research. Here, we applied computational approaches like systems biology to unveil and select relevant proteins and pathways related to VCI by studying the crosstalk between cardiovascular and cognitive diseases. In addition, we specifically included signals related to oxidative stress, a common etiologic factor tightly linked to aging, a major determinant of VCI. Our results show that pathways associated with oxidative stress are quite relevant, as most of the prioritized vascular cognitive genes and proteins were enriched in these pathways. Our analysis provided a short list of proteins that could be contributing to VCI: DOLK, TSC1, ATP1A1, MAPK14, YWHAZ, CREB3, HSPB1, PRDX6, and LMNA. Moreover, our experimental results suggest a high implication of glycative stress, generating oxidative processes and post-translational protein modifications through advanced glycation end-products (AGEs). We propose that these products interact with their specific receptors (RAGE) and Notch signaling to contribute to the etiology of VCI.
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Affiliation(s)
- Melisa
E. Zeylan
- Computational
Sciences and Engineering, Graduate School of Science and Engineering, Koç University, Istanbul 34450, Türkiye
| | - Simge Senyuz
- Computational
Sciences and Engineering, Graduate School of Science and Engineering, Koç University, Istanbul 34450, Türkiye
| | - Pol Picón-Pagès
- Laboratory
of Molecular Physiology, Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Barcelona 08002, Spain
| | - Anna García-Elías
- Laboratory
of Molecular Physiology, Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Barcelona 08002, Spain
| | - Marta Tajes
- Laboratory
of Molecular Physiology, Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Barcelona 08002, Spain
| | - Francisco J. Muñoz
- Laboratory
of Molecular Physiology, Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Barcelona 08002, Spain
| | - Baldomero Oliva
- Laboratory
of Structural Bioinformatics (GRIB), Department of Medicine and Life
Sciences, Universitat Pompeu Fabra, Barcelona 08002, Spain
| | - Jordi Garcia-Ojalvo
- Laboratory
of Dynamical Systems Biology, Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Barcelona 08002, Spain
| | - Eduard Barbu
- Institute
of Computer Science, University of Tartu, Tartu, 50090, Estonia
| | - Raul Vicente
- Institute
of Computer Science, University of Tartu, Tartu, 50090, Estonia
| | - Stanley Nattel
- Department
of Medicine and Research Center, Montreal Heart Institute and Université
de Montréal; Institute of Pharmacology, West German Heart and
Vascular Center, University Duisburg-Essen,
Germany; IHU LIRYC and Fondation Bordeaux Université, Bordeaux 33000, France
| | - Angel Ois
- Department
of Neurology, Hospital Del Mar. Hospital
Del Mar - Medical Research Institute and Universitat Pompeu Fabra, Barcelona 08003, Spain
| | - Albert Puig-Pijoan
- Department
of Neurology, Hospital Del Mar. Hospital
Del Mar - Medical Research Institute and Universitat Pompeu Fabra, Barcelona 08003, Spain
| | - Ozlem Keskin
- Department
of Chemical and Biological Engineering, Koç University, Istanbul 34450, Türkiye
| | - Attila Gursoy
- Department
of Computer Engineering, Koç University, Istanbul 34450, Türkiye
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2
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Berdún R, Obis È, Mota-Martorell N, Bassols A, Valent D, Serrano JCE, Martín-Garí M, Rodríguez-Palmero M, Moreno-Muñoz JA, Tibau J, Quintanilla R, Pamplona R, Portero-Otín M, Jové M. High-Fat Diet-Induced Obesity Increases Brain Mitochondrial Complex I and Lipoxidation-Derived Protein Damage. Antioxidants (Basel) 2024; 13:161. [PMID: 38397759 PMCID: PMC10886272 DOI: 10.3390/antiox13020161] [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: 11/20/2023] [Revised: 01/12/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
Obesity is a risk factor for highly prevalent age-related neurodegenerative diseases, the pathogenesis of whichinvolves mitochondrial dysfunction and protein oxidative damage. Lipoxidation, driven by high levels of peroxidizable unsaturated fatty acids and low antioxidant protection of the brain, stands out as a significant risk factor. To gain information on the relationship between obesity and brain molecular damage, in a porcine model of obesity we evaluated (1) the level of mitochondrial respiratory chain complexes, as the main source of free radical generation, by Western blot; (2) the fatty acid profile by gas chromatography; and (3) the oxidative modification of proteins by mass spectrometry. The results demonstrate a selectively higher amount of the lipoxidation-derived biomarker malondialdehyde-lysine (MDAL) (34% increase) in the frontal cortex, and positive correlations between MDAL and LDL levels and body weight. No changes were observed in brain fatty acid profile by the high-fat diet, and the increased lipid peroxidative modification was associated with increased levels of mitochondrial complex I (NDUFS3 and NDUFA9 subunits) and complex II (flavoprotein). Interestingly, introducing n3 fatty acids and a probiotic in the high-fat diet prevented the observed changes, suggesting that dietary components can modulate protein oxidative modification at the cerebral level and opening new possibilities in neurodegenerative diseases' prevention.
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Affiliation(s)
- Rebeca Berdún
- Department of Experimental Medicine, Lleida Biomedical Research Institute (IRBLleida), University of Lleida (UdL), 25198 Lleida, Spain; (R.B.); (È.O.); (N.M.-M.); (J.C.E.S.); (M.M.-G.); (R.P.)
| | - Èlia Obis
- Department of Experimental Medicine, Lleida Biomedical Research Institute (IRBLleida), University of Lleida (UdL), 25198 Lleida, Spain; (R.B.); (È.O.); (N.M.-M.); (J.C.E.S.); (M.M.-G.); (R.P.)
| | - Natàlia Mota-Martorell
- Department of Experimental Medicine, Lleida Biomedical Research Institute (IRBLleida), University of Lleida (UdL), 25198 Lleida, Spain; (R.B.); (È.O.); (N.M.-M.); (J.C.E.S.); (M.M.-G.); (R.P.)
| | - Anna Bassols
- Departament de Bioquímica i Biologia Molecular, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08025 Barcelona, Spain; (A.B.); (D.V.)
| | - Daniel Valent
- Departament de Bioquímica i Biologia Molecular, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08025 Barcelona, Spain; (A.B.); (D.V.)
| | - José C. E. Serrano
- Department of Experimental Medicine, Lleida Biomedical Research Institute (IRBLleida), University of Lleida (UdL), 25198 Lleida, Spain; (R.B.); (È.O.); (N.M.-M.); (J.C.E.S.); (M.M.-G.); (R.P.)
| | - Meritxell Martín-Garí
- Department of Experimental Medicine, Lleida Biomedical Research Institute (IRBLleida), University of Lleida (UdL), 25198 Lleida, Spain; (R.B.); (È.O.); (N.M.-M.); (J.C.E.S.); (M.M.-G.); (R.P.)
| | - María Rodríguez-Palmero
- Laboratorios Ordesa S.L., Barcelona Science Park, 08028 Barcelona, Spain; (M.R.-P.); (J.A.M.-M.)
| | | | - Joan Tibau
- Animal Science—Institut de Recerca i Tecnologia Agroalimentàries, IRTA, Monells, 17121 Girona, Spain;
| | - Raquel Quintanilla
- Animal Breeding and Genetics Program, IRTA, Torre Marimon, 08140 Caldes de Montbui, Spain;
| | - Reinald Pamplona
- Department of Experimental Medicine, Lleida Biomedical Research Institute (IRBLleida), University of Lleida (UdL), 25198 Lleida, Spain; (R.B.); (È.O.); (N.M.-M.); (J.C.E.S.); (M.M.-G.); (R.P.)
| | - Manuel Portero-Otín
- Department of Experimental Medicine, Lleida Biomedical Research Institute (IRBLleida), University of Lleida (UdL), 25198 Lleida, Spain; (R.B.); (È.O.); (N.M.-M.); (J.C.E.S.); (M.M.-G.); (R.P.)
| | - Mariona Jové
- Department of Experimental Medicine, Lleida Biomedical Research Institute (IRBLleida), University of Lleida (UdL), 25198 Lleida, Spain; (R.B.); (È.O.); (N.M.-M.); (J.C.E.S.); (M.M.-G.); (R.P.)
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3
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Neha, Wali Z, Pinky, Hattiwale SH, Jamal A, Parvez S. GLP-1/Sigma/RAGE receptors: An evolving picture of Alzheimer's disease pathology and treatment. Ageing Res Rev 2024; 93:102134. [PMID: 38008402 DOI: 10.1016/j.arr.2023.102134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/18/2023] [Accepted: 11/19/2023] [Indexed: 11/28/2023]
Abstract
According to the facts and figures 2023stated that 6.7 million Americans over the age of 65 have Alzheimer's disease (AD). The scenario of AD has reached up to the maximum, of 4.1 million individuals, 2/3rd are female patients, and approximately 1 in 9 adults over the age of 65 have dementia with AD dementia. The fact that there are now no viable treatments for AD indicates that the underlying disease mechanisms are not fully understood. The progressive neurodegenerative disease, AD is characterized by amyloid plaques and neurofibrillary tangles (NFTs) of abnormally hyperphosphorylated tau protein and senile plaques (SPs), which are brought on by the buildup of amyloid beta (Aβ). Numerous attempts have been made to produce compounds that interfere with these characteristics because of significant research efforts into the primary pathogenic hallmark of this disorder. Here, we summarize several research that highlights interesting therapy strategies and the neuroprotective effects of GLP-1, Sigma, and, AGE-RAGE receptors in pre-clinical and clinical AD models.
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Affiliation(s)
- Neha
- Department of Toxicology, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi 110062, India.
| | - Zitin Wali
- Department of Toxicology, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi 110062, India
| | - Pinky
- Department of Toxicology, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi 110062, India.
| | - Shaheenkousar H Hattiwale
- Department of Basic Medical Sciences, College of Medicine, Majmaah University, Al-Majmaah 11952, Saudi Arabia
| | - Azfar Jamal
- Department of Biology, College of Science Al-Zulfi, Majmaah University, Al-Majmaah 11952, Saudi Arabia; Health and Basic Science Research Centre, Majmaah University, Al-Majmaah 11952, Saudi Arabia
| | - Suhel Parvez
- Department of Toxicology, School of Chemical & Life Sciences, Jamia Hamdard, New Delhi 110062, India.
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4
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Baylan U, Korn A, Emmens RW, Schalkwijk CG, Niessen HWM, Krijnen PAJ, Simsek S. Liraglutide treatment attenuates inflammation markers in the cardiac, cerebral and renal microvasculature in streptozotocin-induced diabetic rats. Eur J Clin Invest 2022; 52:e13807. [PMID: 35488737 PMCID: PMC9539594 DOI: 10.1111/eci.13807] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Diabetes mellitus (DM) induces cardiac and cerebral microvascular dysfunction via increased glycation, oxidative stress and endothelial activation. Liraglutide, a glucagon-like peptide-1 analogue, inhibited NOX2 and adhesion molecules in isolated endothelial cells. Here, we have studied how Liraglutide affects advanced glycation, NOX expression and inflammation of the cardiac, cerebral and renal microvasculature in diabetic rats. METHODS DM was induced in Sprague-Dawley rats (n = 15) via intraperitoneal streptozotocin (STZ) injection (60 mg/kg bodyweight). Ten control rats remained nondiabetic. From day 9 post-STZ injection, Liraglutide (200 μg/kg bodyweight; n = 7) or vehicle (n = 8) was injected subcutaneously daily until termination on day 29. The advanced glycation endproduct N-ε-(carboxymethyl)lysine (CML), NOX2, NOX4, ICAM-1 and VCAM-1 were subsequently immunohistochemically analysed and quantified to compare Liraglutide treatment with placebo. RESULTS In the heart, Liraglutide treatment significantly reduced the DM-increased scores/cm2 for CML in both ventricles (from 253 ± 53 to 72 ± 12; p = .003) and atria (343 ± 29 to 122 ± 8; p = .0001) and for NOX2, ICAM-1 and VCAM-1, but not for NOX4. Also in the cerebrum and cerebellum of the brain, Liraglutide significantly reduced the scores/cm2 for CML (to 60 ± 7 (p = .0005) and 47 ± 13 (p = .02), respectively), and for NOX2 and NOX4. In the kidney, the DM-induced expression of ICAM-1 and VCAM-1 was decreased in the blood vessels and glomeruli by Liraglutide treatment. Liraglutide did not affect blood glucose levels or bodyweight. CONCLUSIONS Our study implies that Liraglutide protects the cardiac, cerebral and renal microvasculature against diabetes-induced dysfunction, independent of lowering blood glucose in a type 1 diabetes rat model.
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Affiliation(s)
- Umit Baylan
- Department of Pathology, Amsterdam UMC location VUmc, Amsterdam, the Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Amber Korn
- Department of Pathology, Amsterdam UMC location VUmc, Amsterdam, the Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Reindert W Emmens
- Department of Pathology, Amsterdam UMC location VUmc, Amsterdam, the Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Casper G Schalkwijk
- Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands.,Cardiovascular Research Institute Maastricht (CARIM), Maastricht, the Netherlands
| | - Hans W M Niessen
- Department of Pathology, Amsterdam UMC location VUmc, Amsterdam, the Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Paul A J Krijnen
- Department of Pathology, Amsterdam UMC location VUmc, Amsterdam, the Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
| | - Suat Simsek
- Department of Internal Medicine, Alkmaar, the Netherlands.,Department of Internal Medicine, Amsterdam UMC location VUmc, Amsterdam, the Netherlands
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5
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Hadley G, Zhang J, Harris-Skillman E, Alexopoulou Z, DeLuca GC, Pendlebury ST. Cognitive decline and diabetes: a systematic review of the neuropathological correlates accounting for cognition at death. J Neurol Neurosurg Psychiatry 2022; 93:246-253. [PMID: 35086942 DOI: 10.1136/jnnp-2021-328158] [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: 10/04/2021] [Accepted: 11/24/2021] [Indexed: 11/04/2022]
Abstract
Given conflicting findings in epidemiologic studies, we determined the relative contributions of different neuropathologies to the excess risk of cognitive decline in diabetes mellitus (DM) through a systematic review of the literature. Included studies compared subjects with and without DM and reported neuropathological outcomes accounting for cognition at death. Data on Alzheimer's disease (AD) pathology, cerebrovascular disease and non-vascular, non-AD pathology were extracted from each study. Eleven studies (n=6 prospective cohorts, n=5 retrospective post-mortem series, total n=6330) met inclusion criteria. All 11 studies quantified AD changes and 10/11 measured cerebrovascular disease: macroscopic lesions (n=9), microinfarcts (n=8), cerebral amyloid angiopathy (CAA, n=7), lacunes (n=6), white matter disease (n=5), haemorrhages (n=4), microbleeds (n=1), hippocampal microvasculature (n=1). Other pathology was infrequently examined. No study reported increased AD pathology in DM, three studies showed a decrease (n=872) and four (n= 4018) showed no difference, after adjustment for cognition at death. No study reported reduced cerebrovascular pathology in DM. Three studies (n=2345) reported an increase in large infarcts, lacunes and microinfarcts. One study found lower cognitive scores in DM compared to non-DM subjects despite similar cerebrovascular and AD-pathology load suggesting contributions from other neuropathological processes. In conclusion, lack of an association between DM and AD-related neuropathology was consistent across studies, irrespective of methodology. In contrast to AD, DM was associated with increased large and small vessel disease. Data on other pathologies such as non-AD neurodegeneration, and blood-brain-barrier breakdown were lacking. Further studies evaluating relative contributions of different neuropathologies to the excess risk of DM are needed.
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Affiliation(s)
- Gina Hadley
- Departments of General (internal) Medicine and Geratology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK.,Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Jiali Zhang
- St Anne's College, University of Oxford, Oxford, UK
| | - Eva Harris-Skillman
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | | | - Gabriele C DeLuca
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK.,NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
| | - Sarah T Pendlebury
- Departments of General (internal) Medicine and Geratology, Oxford University Hospitals NHS Foundation Trust, Oxford, UK .,NIHR Oxford Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK.,Wolfson Centre for Prevention of Stroke and Dementia, Wolfson Building, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
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6
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Korn A, Baylan U, Simsek S, Schalkwijk CG, Niessen HWM, Krijnen PAJ. Myocardial infarction coincides with increased NOX2 and N ε-(carboxymethyl) lysine expression in the cerebral microvasculature. Open Heart 2021; 8:openhrt-2021-001842. [PMID: 34819349 PMCID: PMC8614153 DOI: 10.1136/openhrt-2021-001842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 11/05/2021] [Indexed: 12/24/2022] Open
Abstract
Background Myocardial infarction (MI) is associated with mental health disorders, in which neuroinflammation and cerebral microvascular dysfunction may play a role. Previously, we have shown that the proinflammatory factors Nε-(carboxymethyl)lysine (CML) and NADPH oxidase 2 (NOX2) are increased in the human infarcted heart microvasculature. The aim of this study was to analyse the presence of CML and NOX2 in the cerebral microvasculature of patients with MI. Methods Brain tissue was obtained at autopsy from 24 patients with MI and nine control patients. According to their infarct age, patients with MI were divided into three groups: 3–6 hours old (phase I), 6 hours–5 days old (phase II) and 5–14 days old (phase III). CML and NOX2 in the microvasculature were studied through immunohistochemical analysis. Results We observed a 2.5-fold increase in cerebral microvascular CML in patients with phase II and phase III MI (phase II: 21.39±7.91, p=0.004; phase III: 24.21±10.37, p=0.0007) compared with non-MI controls (8.55±2.98). NOX2 was increased in microvessels in patients with phase II MI (p=0.002) and phase III MI (p=0.04) compared with controls. No correlation was found between CML and NOX2 (r=0.58, p=0.13). Conclusions MI coincides with an increased presence of CML and NOX2 in the brain microvasculature. These data point to proinflammatory alterations in the brain microvasculature that may underlie MI-associated mental health disorders.
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Affiliation(s)
- Amber Korn
- Department of Pathology, Amsterdam UMC Locatie VUmc, Amsterdam, The Netherlands .,Amsterdam Cardiovascular Sciences, Amsterdam UMC Location VUmc, Amsterdam, The Netherlands
| | - Umit Baylan
- Department of Pathology, Amsterdam UMC Locatie VUmc, Amsterdam, The Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam UMC Location VUmc, Amsterdam, The Netherlands
| | - Suat Simsek
- Department of Internal Medicine, Noordwest Ziekenhuisgroep, Alkmaar, The Netherlands.,Department of Internal Medicine, Amsterdam UMC Locatie VUmc, Amsterdam, The Netherlands
| | - Casper G Schalkwijk
- Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands.,Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands
| | - Hans W M Niessen
- Department of Pathology, Amsterdam UMC Locatie VUmc, Amsterdam, The Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam UMC Location VUmc, Amsterdam, The Netherlands
| | - Paul A J Krijnen
- Department of Pathology, Amsterdam UMC Locatie VUmc, Amsterdam, The Netherlands.,Amsterdam Cardiovascular Sciences, Amsterdam UMC Location VUmc, Amsterdam, The Netherlands
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7
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Chiappalupi S, Salvadori L, Donato R, Riuzzi F, Sorci G. Hyperactivated RAGE in Comorbidities as a Risk Factor for Severe COVID-19-The Role of RAGE-RAS Crosstalk. Biomolecules 2021; 11:biom11060876. [PMID: 34204735 PMCID: PMC8231494 DOI: 10.3390/biom11060876] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/04/2021] [Accepted: 06/08/2021] [Indexed: 02/07/2023] Open
Abstract
The receptor for advanced glycation-end products (RAGE) is a multiligand receptor with a role in inflammatory and pulmonary pathologies. Hyperactivation of RAGE by its ligands has been reported to sustain inflammation and oxidative stress in common comorbidities of severe COVID-19. RAGE is essential to the deleterious effects of the renin-angiotensin system (RAS), which participates in infection and multiorgan injury in COVID-19 patients. Thus, RAGE might be a major player in severe COVID-19, and appears to be a useful therapeutic molecular target in infections by SARS-CoV-2. The role of RAGE gene polymorphisms in predisposing patients to severe COVID-19 is discussed. .
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Affiliation(s)
- Sara Chiappalupi
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (S.C.); (F.R.)
- Interuniversity Institute of Myology (IIM), 06132 Perugia, Italy;
| | - Laura Salvadori
- Interuniversity Institute of Myology (IIM), 06132 Perugia, Italy;
- Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy
| | - Rosario Donato
- Interuniversity Institute of Myology (IIM), 06132 Perugia, Italy;
- Correspondence: (R.D.); (G.S.); Tel.: +39-075-585-8258 (G.S.)
| | - Francesca Riuzzi
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (S.C.); (F.R.)
- Interuniversity Institute of Myology (IIM), 06132 Perugia, Italy;
- Consorzio Interuniversitario Biotecnologie (CIB), 34127 Trieste, Italy
| | - Guglielmo Sorci
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (S.C.); (F.R.)
- Interuniversity Institute of Myology (IIM), 06132 Perugia, Italy;
- Consorzio Interuniversitario Biotecnologie (CIB), 34127 Trieste, Italy
- Centro Universitario di Ricerca Sulla Genomica Funzionale (CURGeF), University of Perugia, 06132 Perugia, Italy
- Correspondence: (R.D.); (G.S.); Tel.: +39-075-585-8258 (G.S.)
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8
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Chou PS, Wu MN, Yang CC, Shen CT, Yang YH. Effect of Advanced Glycation End Products on the Progression of Alzheimer's Disease. J Alzheimers Dis 2020; 72:191-197. [PMID: 31561370 DOI: 10.3233/jad-190639] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Shared links between type 2 diabetes mellitus (T2DM) and Alzheimer's disease (AD) have been well-known. A high concentration of advanced glycation end products (AGEs) has been reported to contribute to impaired mobility in patients with AD, but there is limited understanding regarding the longitudinal impact of AGEs on cognitive performance. OBJECTIVE This study aims to explore whether the concentrations of AGEs mediate the clinical progression of cognitive performance in patients with AD and T2DM. METHODS Twenty-five patients aged 79.0±5.8 years who were diagnosed with probable AD with a Clinical Dementia Rating (CDR) of 0.5 or 1 and T2DM were enrolled in this study. When patients participated in the study, the concentration of plasma AGEs was tested. A series of neuropsychological tests, namely the Mini-Mental Status Examination (MMSE), Cognitive Assessment Screening Instrument (CASI), and CDR, were performed annually during follow-up. The association between the concentration of AGEs and changes in overall cognition and cognition related daily living performance was analyzed. RESULTS After the mean 48.6±2.1 months of follow-up, AGEs were found to be significantly associated with a change in CDR. A total of 12 (48%) patients experienced a decline in CDR; they had a significantly higher concentration of AGEs than did those whose CDR did not deteriorate (100.5 ± 14.2 versus 81.5 ± 17.7; p = 0.007). This difference in CDR remained significant after adjustment for age, sex, education level, and apolipoprotein E4 status (adjusted p = 0.023). CONCLUSION In conclusion, this study indicates that a high concentration of AGEs may be a predictor of a long-term decline in cognition related daily living performance in patients with AD and T2DM.
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Affiliation(s)
- Ping-Song Chou
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of and Master's Program in Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Meng-Ni Wu
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of and Master's Program in Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chen-Cheng Yang
- Department of Environmental and Occupational Medicine, and Health Management Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Environmental and Occupational Medicine, and Health Management Center, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Cheng-Ting Shen
- Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Family Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Yuan-Han Yang
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of and Master's Program in Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
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9
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Tabara Y, Yamanaka M, Setoh K, Segawa H, Kawaguchi T, Kosugi S, Nakayama T, Matsuda F. Advanced Glycation End Product Accumulation is Associated with Lower Cognitive Performance in an Older General Population: The Nagahama Study. J Alzheimers Dis 2020; 74:741-746. [DOI: 10.3233/jad-190878] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Yasuharu Tabara
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Sakyo-ku Kyoto, Japan
| | | | - Kazuya Setoh
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Sakyo-ku Kyoto, Japan
| | | | - Takahisa Kawaguchi
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Sakyo-ku Kyoto, Japan
| | - Shinji Kosugi
- Department of Medical Ethics and Medical Genetics, Kyoto University School of Public Health, Sakyo-ku Kyoto, Japan
| | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Sakyo-ku Kyoto, Japan
| | - Fumihiko Matsuda
- Center for Genomic Medicine, Kyoto University Graduate School of Medicine, Sakyo-ku Kyoto, Japan
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10
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Dicarbonyl Stress at the Crossroads of Healthy and Unhealthy Aging. Cells 2019; 8:cells8070749. [PMID: 31331077 PMCID: PMC6678343 DOI: 10.3390/cells8070749] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/16/2019] [Accepted: 07/17/2019] [Indexed: 02/07/2023] Open
Abstract
Dicarbonyl stress occurs when dicarbonyl metabolites (i.e., methylglyoxal, glyoxal and 3-deoxyglucosone) accumulate as a consequence of their increased production and/or decreased detoxification. This toxic condition has been associated with metabolic and age-related diseases, both of which are characterized by a pro-inflammatory and pro-oxidant state. Methylglyoxal (MGO) is the most reactive dicarbonyl and the one with the highest endogenous flux. It is the precursor of the major quantitative advanced glycated products (AGEs) in physiological systems, arginine-derived hydroimidazolones, which accumulate in aging and dysfunctional tissues. The aging process is characterized by a decline in the functional properties of cells, tissues and whole organs, starting from the perturbation of crucial cellular processes, including mitochondrial function, proteostasis and stress-scavenging systems. Increasing studies are corroborating the causal relationship between MGO-derived AGEs and age-related tissue dysfunction, unveiling a previously underestimated role of dicarbonyl stress in determining healthy or unhealthy aging. This review summarizes the latest evidence supporting a causal role of dicarbonyl stress in age-related diseases, including diabetes mellitus, cardiovascular disease and neurodegeneration.
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11
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Csongová M, Renczés E, Šarayová V, Mihalovičová L, Janko J, Gurecká R, Troise AD, Vitaglione P, Šebeková K. Maternal Consumption of a Diet Rich in Maillard Reaction Products Accelerates Neurodevelopment in F1 and Sex-Dependently Affects Behavioral Phenotype in F2 Rat Offspring. Foods 2019; 8:foods8050168. [PMID: 31108957 PMCID: PMC6560437 DOI: 10.3390/foods8050168] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 12/21/2022] Open
Abstract
Thermal processing of foods at temperatures > 100 °C introduces considerable amounts of advanced glycation end-products (AGEs) into the diet. Maternal dietary exposure might affect the offspring early development and behavioral phenotype in later life. In a rat model, we examined the influence of maternal (F0) dietary challenge with AGEs-rich diet (AGE-RD) during puberty, pregnancy and lactation on early development, a manifestation of physiological reflexes, and behavioral phenotype of F1 and F2 offspring. Mean postnatal day of auditory conduit and eye opening, or incisor eruption was not affected by F0 diet significantly. F1 AGE-RD offspring outperformed their control counterparts in hind limb placing, in grasp tests and surface righting; grandsons of AGE-RD dams outperformed their control counterparts in hind limb placing and granddaughters in surface righting. In a Morris water maze, female AGE-RD F1 and F2 offspring presented better working memory compared with a control group of female offspring. Furthermore, male F2 AGE-RD offspring manifested anxiolysis-like behavior in a light dark test. Mean grooming time in response to sucrose splash did not differ between dietary groups. Our findings indicate that long-term maternal intake of AGE-RD intergenerationally and sex-specifically affects development and behavioral traits of offspring which have never come into direct contact with AGE-RD.
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Affiliation(s)
- Melinda Csongová
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 81108 Bratislava, Slovakia.
| | - Emese Renczés
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 81108 Bratislava, Slovakia.
| | - Veronika Šarayová
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 81108 Bratislava, Slovakia.
- Department of Biology, Faculty of Medicine, Slovak Medical University, 83303 Bratislava, Slovakia.
| | - Lucia Mihalovičová
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 81108 Bratislava, Slovakia.
| | - Jakub Janko
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 81108 Bratislava, Slovakia.
| | - Radana Gurecká
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 81108 Bratislava, Slovakia.
- Institute of Medical Physics, Biophysics, Informatics and Telemedicine, Faculty of Medicine, Comenius University, 81108 Bratislava, Slovakia.
| | - Antonio Dario Troise
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy.
| | - Paola Vitaglione
- Department of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Italy.
| | - Katarína Šebeková
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, 81108 Bratislava, Slovakia.
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12
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AGE-RAGE stress: a changing landscape in pathology and treatment of Alzheimer's disease. Mol Cell Biochem 2019; 459:95-112. [PMID: 31079281 DOI: 10.1007/s11010-019-03553-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 05/04/2019] [Indexed: 12/27/2022]
Abstract
Numerous hypotheses including amyloid cascade, cholinergic, and oxidative have been proposed for pathogenesis of Alzheimer's disease (AD). The data suggest that advanced glycation end products (AGEs) and its receptor RAGE (receptor for AGE) are involved in the pathogenesis of AD. AGE-RAGE stress, defined as a balance between stressors (AGE, RAGE) and anti-stressors (sRAGE, AGE degraders) in favor of stressors, has been implicated in pathogenesis of diseases. AGE and its interaction with RAGE-mediated increase in the reactive oxygen species (ROS) damage brain because of its increased vulnerability to ROS. AGE and ROS increase the synthesis of amyloid β (Aβ) leading to deposition of Aβ and phosphorylation of tau, culminating in formation of plaques and neurofibrillary tangles. ROS increase the synthesis of Aβ, high-mobility group box 1(HMGB1), and S100 that interacts with RAGE to produce additional ROS resulting in enhancement of AD pathology. Elevation of ROS precedes the Aβ plaques formation. Because of involvement of AGE and RAGE in AD pathology, the treatment should be targeted at lowering AGE levels through reduction in consumption and formation of AGE, and lowering expression of RAGE, blocking of RAGE ligand binding, increasing levels of soluble RAGE (sRAGE), and use of antioxidants. The above treatment aspect of AD is lacking. In conclusion, AGE-RAGE stress initiates, and Aβ, HMGB1, and S100 enhance the progression of AD. Reduction of levels of AGE and RAGE, elevation of sRAGE, and antioxidants would be beneficial therapeutic modalities in the prevention, regression, and slowing of progression of AD.
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13
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Šebeková K, Brouder Šebeková K. Glycated proteins in nutrition: Friend or foe? Exp Gerontol 2018; 117:76-90. [PMID: 30458224 DOI: 10.1016/j.exger.2018.11.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 09/20/2018] [Accepted: 11/16/2018] [Indexed: 12/18/2022]
Abstract
Advanced glycation end products (AGEs) are formed in in vivo, and accumulate in tissues and body fluids during ageing. Endogenous AGE-modified proteins show altered structure and function, and may interact with receptor for AGEs (RAGE) resulting in production of reactive oxygen species, inflammatory, atherogenic and diabetogenic responses. AGEs are also formed in thermally processed foods. Studies in rodents document that dietary AGEs are partially absorbed into circulation, and accumulate in different tissues. Knowledge on the health effects of high dietary intake of AGEs is incomplete and contradictory. In this overview we discuss the data from experimental and clinical studies, either those supporting the assumption that restriction of dietary AGEs associated with health benefits, or data suggesting that dietary intake of AGEs associates with positive health outcomes. We polemicize whether the effects of exaggerated intake or restriction of highly thermally processed foods might be straightforward interpreted as the effects of AGEs-rich vs. AGEs-restricted diets. We also underline the lack of studies, and thus a poor knowledge, on the effects of different single chemically defined AGEs administration, concurrent intake of different dietary AGEs, of load with dietary AGEs corresponding to the habitual diet in humans, and on those of dietary AGEs in vulnerable populations, such as infants and particularly elderly.
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Affiliation(s)
- Katarína Šebeková
- Institute of Molecular Biomedicine, Medical Faculty, Comenius University, Bratislava, Slovakia.
| | - Katarína Brouder Šebeková
- Intensive Care Unit, John Radcliffe Hospital, Oxford, United Kingdom of Great Britain and Northern Ireland
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14
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Barrett EJ, Liu Z, Khamaisi M, King GL, Klein R, Klein BEK, Hughes TM, Craft S, Freedman BI, Bowden DW, Vinik AI, Casellini CM. Diabetic Microvascular Disease: An Endocrine Society Scientific Statement. J Clin Endocrinol Metab 2017; 102:4343-4410. [PMID: 29126250 PMCID: PMC5718697 DOI: 10.1210/jc.2017-01922] [Citation(s) in RCA: 287] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 08/29/2017] [Indexed: 01/18/2023]
Abstract
Both type 1 and type 2 diabetes adversely affect the microvasculature in multiple organs. Our understanding of the genesis of this injury and of potential interventions to prevent, limit, or reverse injury/dysfunction is continuously evolving. This statement reviews biochemical/cellular pathways involved in facilitating and abrogating microvascular injury. The statement summarizes the types of injury/dysfunction that occur in the three classical diabetes microvascular target tissues, the eye, the kidney, and the peripheral nervous system; the statement also reviews information on the effects of diabetes and insulin resistance on the microvasculature of skin, brain, adipose tissue, and cardiac and skeletal muscle. Despite extensive and intensive research, it is disappointing that microvascular complications of diabetes continue to compromise the quantity and quality of life for patients with diabetes. Hopefully, by understanding and building on current research findings, we will discover new approaches for prevention and treatment that will be effective for future generations.
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Affiliation(s)
- Eugene J. Barrett
- Division of Endocrinology, Department of Medicine, University of Virginia, Charlottesville, Virginia 22908
| | - Zhenqi Liu
- Division of Endocrinology, Department of Medicine, University of Virginia, Charlottesville, Virginia 22908
| | - Mogher Khamaisi
- Section of Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts 02215
| | - George L. King
- Section of Vascular Cell Biology, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts 02215
| | - Ronald Klein
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53705
| | - Barbara E. K. Klein
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53705
| | - Timothy M. Hughes
- Sticht Center for Healthy Aging and Alzheimer’s Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157
| | - Suzanne Craft
- Sticht Center for Healthy Aging and Alzheimer’s Prevention, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157
| | - Barry I. Freedman
- Divisions of Nephrology and Endocrinology, Department of Internal Medicine, Centers for Diabetes Research, and Center for Human Genomics and Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157
| | - Donald W. Bowden
- Divisions of Nephrology and Endocrinology, Department of Internal Medicine, Centers for Diabetes Research, and Center for Human Genomics and Personalized Medicine Research, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157
| | - Aaron I. Vinik
- EVMS Strelitz Diabetes Center, Eastern Virginia Medical Center, Norfolk, Virginia 23510
| | - Carolina M. Casellini
- EVMS Strelitz Diabetes Center, Eastern Virginia Medical Center, Norfolk, Virginia 23510
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15
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Kidney, heart and brain: three organs targeted by ageing and glycation. Clin Sci (Lond) 2017; 131:1069-1092. [PMID: 28515343 DOI: 10.1042/cs20160823] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 02/01/2017] [Accepted: 02/06/2017] [Indexed: 12/20/2022]
Abstract
Advanced glycation end-product (AGE) is the generic term for a heterogeneous group of derivatives arising from a non-enzymatic reaction between reducing sugars and proteins. In recent years, evidence has accumulated that incriminates AGEs in pathogenic processes associated with both chronic hyperglycaemia and age-related diseases. Regardless of their exogenous or endogenous origin, the accumulation of AGEs and their derivatives could promote accelerated ageing by leading to protein modifications and activating several inflammatory signalling pathways via AGE-specific receptors. However, it remains to be demonstrated whether preventing the accumulation of AGEs and their effects is an important therapeutic option for successful ageing. The present review gives an overview of the current knowledge on the pathogenic role of AGEs by focusing on three AGE target organs: kidney, heart and brain. For each of these organs we concentrate on an age-related disease, each of which is a major public health issue: chronic kidney disease, heart dysfunction and neurodegenerative diseases. Even though strong connections have been highlighted between glycation and age-related pathogenesis, causal links still need to be validated. In each case, we report evidence and uncertainties suggested by animal or epidemiological studies on the possible link between pathogenesis and glycation in a chronic hyperglycaemic state, in the absence of diabetes, and with exogenous AGEs alone. Finally, we present some promising anti-AGE strategies that are currently being studied.
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16
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Tessier FJ, Niquet-Léridon C, Jacolot P, Jouquand C, Genin M, Schmidt AM, Grossin N, Boulanger E. Quantitative assessment of organ distribution of dietary protein-bound 13 C-labeled N ɛ -carboxymethyllysine after a chronic oral exposure in mice. Mol Nutr Food Res 2016; 60:2446-2456. [PMID: 27393741 DOI: 10.1002/mnfr.201600140] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 06/15/2016] [Accepted: 06/17/2016] [Indexed: 12/28/2022]
Abstract
SCOPE Nɛ -Carboxymethyl-lysine (CML) is a prominent advanced glycation end-product which is not only found in vivo but also in food. It is known that a percentage of the dietary CML (dCML) is absorbed into the circulation and only partly excreted in the urine. Several studies have tried to measure how much dCML remains in tissues. However obstacles to interpreting the data have been found. METHODS AND RESULTS A new protocol which discriminates dCML from native CML (nCML) has been developed. Three CML isotopes with different mass-to-charge ratios were used: nCML Nε -carboxymethyl-L-lysine, dCML Nε -[13 C]carboxy[13 C]methyl-L-lysine and internal standard Nε -carboxymethyl-L-[4,4,5,5-2 H4 ]lysine. Wild-type (n = 7) and RAGE-/- (n = 8) mice were fed for 30 days with either a control, or a BSA-bound dCML-enriched diet. Organs were analyzed for nCML and dCML using liquid chromatography-tandem mass spectrometry. Mice exposed to dCML showed an accumulation in all tissues tested except fat. The rate of deposition was high (81-320 μgdCML /g dry matter) in kidneys, intestine, and lungs and low (<5 μg/g) in heart, muscle, and liver. This accumulation was not RAGE dependent. CONCLUSION The kidney is not the only organ affected by the accumulation of dCML. Its high accumulation in other tissues and organs may also, however, have important physiological consequences.
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Affiliation(s)
- Frédéric J Tessier
- Univ. Lille, Inserm, CHU Lille, U995 - LIRIC - Lille Inflammation Research International Center, Lille, France.,Institut Polytechnique LaSalle Beauvais, EGEAL Unit, Beauvais, France
| | | | - Philippe Jacolot
- Institut Polytechnique LaSalle Beauvais, EGEAL Unit, Beauvais, France
| | - Céline Jouquand
- Institut Polytechnique LaSalle Beauvais, EGEAL Unit, Beauvais, France
| | - Michaël Genin
- Univ. Lille, EA 2694-Santé publique: épidémiologie et qualité des soins, Lille, France
| | - Ann-Marie Schmidt
- Diabetes Research Center, Department of Medicine, NYU Langone Medical Center, New York, NY, USA
| | - Nicolas Grossin
- Univ. Lille, Inserm, CHU Lille, U995 - LIRIC - Lille Inflammation Research International Center, Lille, France
| | - Eric Boulanger
- Univ. Lille, Inserm, CHU Lille, U995 - LIRIC - Lille Inflammation Research International Center, Lille, France
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17
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Lubitz I, Ricny J, Atrakchi‐Baranes D, Shemesh C, Kravitz E, Liraz‐Zaltsman S, Maksin‐Matveev A, Cooper I, Leibowitz A, Uribarri J, Schmeidler J, Cai W, Kristofikova Z, Ripova D, LeRoith D, Schnaider‐Beeri M. High dietary advanced glycation end products are associated with poorer spatial learning and accelerated Aβ deposition in an Alzheimer mouse model. Aging Cell 2016; 15:309-16. [PMID: 26781037 PMCID: PMC4783343 DOI: 10.1111/acel.12436] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2015] [Indexed: 01/02/2023] Open
Abstract
There is growing evidence of the involvement of advanced glycation end products (AGEs) in the pathogenesis of neurodegenerative processes including Alzheimer's disease (AD) and their function as a seed for the aggregation of Aβ, a hallmark feature of AD. AGEs are formed endogenously and exogenously during heating and irradiation of foods. We here examined the effect of a diet high in AGEs in the context of an irradiated diet on memory, insoluble Aβ42, AGEs levels in hippocampus, on expression of the receptor for AGEs (RAGE), and on oxidative stress in the vasculature. We found that AD‐like model mice on high‐AGE diet due to irradiation had significantly poorer memory, higher hippocampal levels of insoluble Aβ42 and AGEs as well as higher levels of oxidative stress on vascular walls, compared to littermates fed an isocaloric diet. These differences were not due to weight gain. The data were further supported by the overexpression of RAGE, which binds to Aβ42 and regulates its transport across the blood–brain barrier, suggesting a mediating pathway. Because exposure to AGEs can be diminished, these insights provide an important simple noninvasive potential therapeutic strategy for alleviating a major lifestyle‐linked disease epidemic.
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Affiliation(s)
- Irit Lubitz
- The Joseph Sagol Neuroscience Center Tel Hashomer Ramat Gan 52621 Israel
| | - Jan Ricny
- Department of Biochemistry and Brain Pathophysiology National Institute of Mental Health Topolova 748 Klecany 250 67 Czech Republic
| | | | - Chen Shemesh
- The Joseph Sagol Neuroscience Center Tel Hashomer Ramat Gan 52621 Israel
| | - Efrat Kravitz
- The Joseph Sagol Neuroscience Center Tel Hashomer Ramat Gan 52621 Israel
| | | | | | - Itzik Cooper
- The Joseph Sagol Neuroscience Center Tel Hashomer Ramat Gan 52621 Israel
| | - Avshalom Leibowitz
- Department of Internal Medicine D and Hypertension Unit Sheba Medical CenterRamat Gan 52621 Israel
| | - Jaime Uribarri
- Department of Psychiatry Mount Sinai School of Medicine New York NY 10029 USA
| | - James Schmeidler
- Department of Psychiatry Mount Sinai School of Medicine New York NY 10029 USA
| | - Weijing Cai
- Department of Psychiatry Mount Sinai School of Medicine New York NY 10029 USA
| | - Zdena Kristofikova
- Department of Biochemistry and Brain Pathophysiology National Institute of Mental Health Topolova 748 Klecany 250 67 Czech Republic
| | - Daniela Ripova
- Department of Biochemistry and Brain Pathophysiology National Institute of Mental Health Topolova 748 Klecany 250 67 Czech Republic
| | - Derek LeRoith
- Department of MedicineIcahn School of Medicine at Mt Sinai New York NY 10029 USA
| | - Michal Schnaider‐Beeri
- The Joseph Sagol Neuroscience Center Tel Hashomer Ramat Gan 52621 Israel
- Department of Psychiatry Mount Sinai School of Medicine New York NY 10029 USA
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18
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Nε-(carboxymethyl)-lysine, White Matter, and Cognitive Function in Diabetes Patients. Can J Neurol Sci 2016; 43:518-22. [PMID: 26889714 DOI: 10.1017/cjn.2015.398] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To study the relationship of Nε-(carboxymethyl)-lysine level (CML) with microstructure changes of white matter (WM), and cognitive impairment in patients with type 2 diabetes mellitus (T2DM) and to discuss the potential mechanism underlying T2DM-associated cognitive impairment. METHODS The study was performed in T2DM patients (n=22) with disease course ≥5 years and age ranging from 65 to 75 years old. A control group consisted of 25 sex- and age-matched healthy volunteers. Fractional anisotropy (FA) of several WM regions was analyzed by diffusion tensor imaging scan. Plasma CML levels were measured by enzyme-linked immunosorbent assay, and cognitive function was assessed by Mini-Mental State Examination and Montreal cognitive assessment (MoCA). RESULTS The total Mini-Mental State Examination score in the patient group (25.72±3.13) was significantly lower than the control group (28.16±2.45) (p<0.05). In addition, the total MoCA score in the patient group (22.15±3.56) was significantly lower than the control group 25.63±4.12) (p<0.01). In the patient group, FA values were significantly decreased in the corpus callosum, cingulate fasciculus, inferior fronto-occipital fasciculus, parietal WM, hippocampus, and temporal lobes relative to corresponding regions of healthy controls (p<0.05). Plasma CML level was negatively correlated with average FA values in the global brain (r=-0.58, p<0.01) and MoCA scores (r=-0.47, p<0.05). CONCLUSIONS In T2DM, WM microstructure changes occur in older patients, and elevations in CML may play a role in the development of cognitive impairment.
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19
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Guerrero-Berroa E, Schmeidler J, Beeri MS. Neuropathology of type 2 diabetes: a short review on insulin-related mechanisms. Eur Neuropsychopharmacol 2014; 24:1961-6. [PMID: 24529419 PMCID: PMC4116474 DOI: 10.1016/j.euroneuro.2014.01.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Accepted: 01/23/2014] [Indexed: 12/20/2022]
Abstract
Postmortem studies have shown that cerebrovascular disease (CVD) neuropathology occurs frequently in type 2 diabetes (T2D) through mechanisms associated with chronic hyperglycemia such as advanced glycation end-products (AGEs). The involvement of T2D in Alzheimer׳s disease (AD)-type neuropathology has been more controversial. While postmortem data from animal studies have supported the involvement of T2D in AD-type neuropathology through insulin mechanism that may affect the development of neuritic plaques and neurofibrillary tangles (NFTs), findings from postmortem studies in humans, of the association of T2D with AD, have been mainly negative. To complicate matters, medications to treat T2D have been implicated in reduced AD-type neuropathology. In this review we summarize the literature on animal and human postmortem studies of T2D neuropathology, mainly the mechanisms involved in hyperglycemia-related CVD neuropathology and hyperinsulinemia-related AD-type neuropathology.
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Affiliation(s)
| | - James Schmeidler
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Michal Schnaider Beeri
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; The Joseph Sagol Neuroscience Center, Sheba Medical Center, Ramat Gan, Israel
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20
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Salahuddin P, Rabbani G, Khan RH. The role of advanced glycation end products in various types of neurodegenerative disease: a therapeutic approach. Cell Mol Biol Lett 2014; 19:407-37. [PMID: 25141979 PMCID: PMC6275793 DOI: 10.2478/s11658-014-0205-5] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2013] [Accepted: 07/28/2014] [Indexed: 12/12/2022] Open
Abstract
Protein glycation is initiated by a nucleophilic addition reaction between the free amino group from a protein, lipid or nucleic acid and the carbonyl group of a reducing sugar. This reaction forms a reversible Schiff base, which rearranges over a period of days to produce ketoamine or Amadori products. The Amadori products undergo dehydration and rearrangements and develop a cross-link between adjacent proteins, giving rise to protein aggregation or advanced glycation end products (AGEs). A number of studies have shown that glycation induces the formation of the β-sheet structure in β-amyloid protein, α-synuclein, transthyretin (TTR), copper-zinc superoxide dismutase 1 (Cu, Zn-SOD-1), and prion protein. Aggregation of the β-sheet structure in each case creates fibrillar structures, respectively causing Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, familial amyloid polyneuropathy, and prion disease. It has been suggested that oligomeric species of glycated α-synuclein and prion are more toxic than fibrils. This review focuses on the pathway of AGE formation, the synthesis of different types of AGE, and the molecular mechanisms by which glycation causes various types of neurodegenerative disease. It discusses several new therapeutic approaches that have been applied to treat these devastating disorders, including the use of various synthetic and naturally occurring inhibitors. Modulation of the AGE-RAGE axis is now considered promising in the prevention of neurodegenerative diseases. Additionally, the review covers several defense enzymes and proteins in the human body that are important anti-glycating systems acting to prevent the development of neurodegenerative diseases.
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Affiliation(s)
- Parveen Salahuddin
- Distributed Information Sub Center Unit, Aligarh Muslim University, Aligarh, 202 002 India
| | - Gulam Rabbani
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202 002 India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh, 202 002 India
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21
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West RK, Moshier E, Lubitz I, Schmeidler J, Godbold J, Cai W, Uribarri J, Vlassara H, Silverman JM, Beeri MS. Dietary advanced glycation end products are associated with decline in memory in young elderly. Mech Ageing Dev 2014; 140:10-2. [PMID: 25037023 DOI: 10.1016/j.mad.2014.07.001] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 04/04/2014] [Accepted: 07/08/2014] [Indexed: 12/28/2022]
Abstract
We recently reported that serum methylglyoxal (sMG) is associated with a faster rate of decline in a global measure of cognition in the very elderly. We here provide for the first time evidence in which high levels of dietary AGE (dAGE) are associated with faster rate of decline in memory in 49 initially non-demented young elderly (p=0.012 in mixed regression models adjusting for sociodemographic and cardiovascular factors). Since modifying the levels of AGEs in the diet may be relatively easy, these preliminary results suggest a simple strategy to diminish cognitive compromise in the elderly and warrant further investigation.
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Affiliation(s)
- Rebecca K West
- The Icahn School of Medicine at Mount Sinai, New York, NY, US.
| | - Erin Moshier
- The Icahn School of Medicine at Mount Sinai, New York, NY, US
| | - Irit Lubitz
- The Sheba Medical Center, The Joseph Sagol Neuroscience Center, Ramat Gan, Israel
| | | | - James Godbold
- The Icahn School of Medicine at Mount Sinai, New York, NY, US
| | - Weijing Cai
- The Icahn School of Medicine at Mount Sinai, New York, NY, US
| | - Jaime Uribarri
- The Icahn School of Medicine at Mount Sinai, New York, NY, US
| | - Helen Vlassara
- The Icahn School of Medicine at Mount Sinai, New York, NY, US
| | - Jeremy M Silverman
- The Icahn School of Medicine at Mount Sinai, New York, NY, US; The James J Peters Veterans Affairs Medical Center, Bronx, NY, US
| | - Michal Schnaider Beeri
- The Icahn School of Medicine at Mount Sinai, New York, NY, US; The Sheba Medical Center, The Joseph Sagol Neuroscience Center, Ramat Gan, Israel
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Zhang H, Wang Y, Yan S, Du F, Wu L, Yan S, Yan SS. Genetic deficiency of neuronal RAGE protects against AGE-induced synaptic injury. Cell Death Dis 2014; 5:e1288. [PMID: 24922072 PMCID: PMC4611721 DOI: 10.1038/cddis.2014.248] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 04/28/2014] [Accepted: 05/05/2014] [Indexed: 01/11/2023]
Abstract
Synaptic dysfunction and degeneration is an early pathological feature of aging and age-related diseases, including Alzheimer's disease (AD). Aging is associated with increased generation and deposition of advanced glycation endproducts (AGEs), resulting from nonenzymatic glycation (or oxidation) proteins and lipids. AGE formation is accelerated in diabetes and AD-affected brain, contributing to cellular perturbation. The extent of AGEs' involvement, if at all, in alterations in synaptic structure and function is currently unknown. Here we analyze the contribution of neuronal receptor of AGEs (RAGE) signaling to AGE-mediated synaptic injury using novel transgenic neuronal RAGE knockout mice specifically targeted to the forebrain and transgenic mice expressing neuronal dominant-negative RAGE (DN-RAGE). Addition of AGEs to brain slices impaired hippocampal long-term potentiation (LTP). Similarly, treatment of hippocampal neurons with AGEs significantly decreases synaptic density. Such detrimental effects are largely reversed by genetic RAGE depletion. Notably, brain slices from mice with neuronal RAGE deficiency or DN-RAGE are resistant to AGE-induced LTP deficit. Further, RAGE deficiency or DN-RAGE blocks AGE-induced activation of p38 signaling. Taken together, these data show that neuronal RAGE functions as a signal transducer for AGE-induced synaptic dysfunction, thereby providing new insights into a mechanism by which the AGEs–RAGE-dependent signaling cascade contributes to synaptic injury via the p38 MAP kinase signal transduction pathway. Thus, RAGE blockade may be a target for development of interventions aimed at preventing the progression of cognitive decline in aging and age-related neurodegenerative diseases.
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Affiliation(s)
- Hongju Zhang
- 1] Departments of Pharmacology and Toxicology and Higuchi Bioscience Center, School of Pharmacy, University of Kansas, Lawrence, KS 66047, USA [2] School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Yongfu Wang
- Departments of Pharmacology and Toxicology and Higuchi Bioscience Center, School of Pharmacy, University of Kansas, Lawrence, KS 66047, USA
| | - Shijun Yan
- Departments of Pharmacology and Toxicology and Higuchi Bioscience Center, School of Pharmacy, University of Kansas, Lawrence, KS 66047, USA
| | - Fang Du
- Departments of Pharmacology and Toxicology and Higuchi Bioscience Center, School of Pharmacy, University of Kansas, Lawrence, KS 66047, USA
| | - Long Wu
- Departments of Pharmacology and Toxicology and Higuchi Bioscience Center, School of Pharmacy, University of Kansas, Lawrence, KS 66047, USA
| | - Shiqiang Yan
- School of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Shirley S Yan
- Departments of Pharmacology and Toxicology and Higuchi Bioscience Center, School of Pharmacy, University of Kansas, Lawrence, KS 66047, USA
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23
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Role of methylglyoxal in Alzheimer's disease. BIOMED RESEARCH INTERNATIONAL 2014; 2014:238485. [PMID: 24734229 PMCID: PMC3966409 DOI: 10.1155/2014/238485] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 01/28/2014] [Accepted: 01/30/2014] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease is the most common and lethal neurodegenerative disorder. The major hallmarks of Alzheimer's disease are extracellular aggregation of amyloid β peptides and, the presence of intracellular neurofibrillary tangles formed by precipitation/aggregation of hyperphosphorylated tau protein. The etiology of Alzheimer's disease is multifactorial and a full understanding of its pathogenesis remains elusive. Some years ago, it has been suggested that glycation may contribute to both extensive protein cross-linking and oxidative stress in Alzheimer's disease. Glycation is an endogenous process that leads to the production of a class of compounds known as advanced glycation end products (AGEs). Interestingly, increased levels of AGEs have been observed in brains of Alzheimer's disease patients. Methylglyoxal, a reactive intermediate of cellular metabolism, is the most potent precursor of AGEs and is strictly correlated with an increase of oxidative stress in Alzheimer's disease. Many studies are showing that methylglyoxal and methylglyoxal-derived AGEs play a key role in the etiopathogenesis of Alzheimer's disease.
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Increased protein aggregation in Zucker diabetic fatty rat brain: identification of key mechanistic targets and the therapeutic application of hydrogen sulfide. BMC Cell Biol 2014; 15:1. [PMID: 24393531 PMCID: PMC3998068 DOI: 10.1186/1471-2121-15-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 12/23/2013] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Diabetes and particularly high blood glucose levels are implicated in neurodegeneration. One of the hallmarks of neurodegeneration is protein aggregation. We investigated the presence of protein aggregation in the frontal brain of Zucker diabetic fatty (ZDF) rats, an animal model for diabetes. Further, the effect of NaHS in suppressing protein aggregation in cultured brain slices from ZDF was assessed. RESULTS The levels of protein synthesis, protein/gene expression, autophagy and anti-oxidant defense were evaluated in ZDF and control (Lean) brains.Compared to Lean, ZDF brains displayed a significant increase in protein aggregates, p-tau, fibronectin expression and protein glycosylation. Increased phosphorylation of mTOR and S6 ribosomal protein in ZDF indicated higher protein synthesis, while the increase in ubiquitinated proteins and LC3-I in ZDF brains accompanied by lower LC3-II expression and LC3-II/LC3-I levels indicated the blockage of proteolytic pathways. CBS (cystathionine beta synthase) protein and mRNA expression and thiol group levels in ZDF brains were lower compared to Lean. ZDF brains show a higher level of reactive oxygen species. In vitro NaHS treatment normalized proteostasis while counteracting oxidative stress. CONCLUSION Our data demonstrate increased protein synthesis and aggregation in the diabetic ZDF rat brain, which was reversible by NaHS treatment.This is the first report on the potential use of NaHS as a novel strategy against protein aggregation in diabetic brain.
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Aldini G, Vistoli G, Stefek M, Chondrogianni N, Grune T, Sereikaite J, Sadowska-Bartosz I, Bartosz G. Molecular strategies to prevent, inhibit, and degrade advanced glycoxidation and advanced lipoxidation end products. Free Radic Res 2013; 47 Suppl 1:93-137. [PMID: 23560617 DOI: 10.3109/10715762.2013.792926] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The advanced glycoxidation end products (AGEs) and lipoxidation end products (ALEs) contribute to the development of diabetic complications and of other pathologies. The review discusses the possibilities of counteracting the formation and stimulating the degradation of these species by pharmaceuticals and natural compounds. The review discusses inhibitors of ALE and AGE formation, cross-link breakers, ALE/AGE elimination by enzymes and proteolytic systems, receptors for advanced glycation end products (RAGEs) and blockade of the ligand-RAGE axis.
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Affiliation(s)
- Giancarlo Aldini
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
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26
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Role of advanced glycation end products in hypertension and cardiovascular risk: human studies. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.jash.2012.10.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Srikanth V, Westcott B, Forbes J, Phan TG, Beare R, Venn A, Pearson S, Greenaway T, Parameswaran V, Münch G. Methylglyoxal, cognitive function and cerebral atrophy in older people. J Gerontol A Biol Sci Med Sci 2012; 68:68-73. [PMID: 22496536 DOI: 10.1093/gerona/gls100] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The effects of advanced glycation endproducts on cognition and brain structure are poorly understood. We studied associations of the advanced glycation endproduct precursor methylglyoxal (MGO) with cognitive function and brain volumes in older people. METHODS Nondemented participants in the Tasmanian Study of Cognition and Gait underwent cognitive testing and brain magnetic resonance imaging scans. Brain volumes were obtained by magnetic resonance imaging scan segmentation and statistical parametric mapping procedures. Serum MGO was measured after derivatization to methylquinoxaline by high pressure liquid chromatography and UV detection. Linear regression was used to examine associations of log-transformed MGO with cognitive scores and brain volumes adjusting for potential confounding by age, sex, education, mood, insulin resistance, history of stroke, vascular risk factors, alcohol intake, and psychoactive medication use. RESULTS There were 378 participants, mean age 72.1 years (SD 7.1), 55% male. Greater MGO was associated with poorer memory (β = -.12, 95% confidence interval: -0.22, -0.02, p = .02) and executive function, the latter being greater among those with a history of stroke (MGO × stroke β = .48, 95% confidence interval: 0.17, 0.79, p = .002). Greater MGO was associated with lower grey matter volume (β = -6.42, 95% confidence interval -11.82, -1.11, p = .02) but not with white matter volume, white matter lesion volume, or hippocampal volume. CONCLUSIONS These results support the investigation of the role of the advanced glycation endproduct precursor methylglyoxal in cognitive decline and neurodegeneration in older people.
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Affiliation(s)
- Velandai Srikanth
- Stroke and Aging Research Group, Neurosciences, Deparment of Medicine, Southern Clinical School, Monash Medical Centre, Clayton, Victoria, Australia.
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Navaratna D, Guo SZ, Hayakawa K, Wang X, Gerhardinger C, Lo EH. Decreased cerebrovascular brain-derived neurotrophic factor-mediated neuroprotection in the diabetic brain. Diabetes 2011; 60:1789-96. [PMID: 21562076 PMCID: PMC3114398 DOI: 10.2337/db10-1371] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVE Diabetes is an independent risk factor for stroke. However, the underlying mechanism of how diabetes confers that this risk is not fully understood. We hypothesize that secretion of neurotrophic factors by the cerebral endothelium, such as brain-derived neurotrophic factor (BDNF), is suppressed in diabetes. Consequently, such accrued neuroprotective deficits make neurons more vulnerable to injury. RESEARCH DESIGN AND METHODS We examined BDNF protein levels in a streptozotocin-induced rat model of diabetes by Western blotting and immunohistochemistry. Levels of total and secreted BDNF protein were quantified in human brain microvascular endothelial cells after exposure to advanced glycation end product (AGE)-BSA by enzyme-linked immunosorbent assay and immunocytochemistry. In media transfer experiments, the neuroprotective efficacy of conditioned media from normal healthy endothelial cells was compared with AGE-treated endothelial cells in an in vitro hypoxic injury model. RESULTS Cerebrovascular BDNF protein was reduced in the cortical endothelium in 6-month diabetic rats. Immunohistochemical analysis of 6-week diabetic brain sections showed that the reduction of BDNF occurs early after induction of diabetes. Treatment of brain microvascular endothelial cells with AGE caused a similar reduction in BDNF protein and secretion in an extracellular signal-related kinase-dependent manner. In media transfer experiments, conditioned media from AGE-treated endothelial cells were less neuroprotective against hypoxic injury because of a decrease in secreted BDNF. CONCLUSIONS Taken together, our findings suggest that a progressive depletion of microvascular neuroprotection in diabetes elevates the risk of neuronal injury for a variety of central nervous system diseases, including stroke and neurodegeneration.
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Affiliation(s)
- Deepti Navaratna
- Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Shu-zhen Guo
- Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Kazhuhide Hayakawa
- Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Xiaoying Wang
- Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
| | - Chiara Gerhardinger
- Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts
| | - Eng H. Lo
- Neuroprotection Research Laboratory, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts
- Corresponding author: Eng H. Lo,
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Nomoto J, Kuroki T, Nemoto M, Kondo K, Harada N, Nagao T. Effects of edaravone on a rat model of punch-drunk syndrome. Neurol Med Chir (Tokyo) 2011; 51:1-7. [PMID: 21273737 DOI: 10.2176/nmc.51.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Punch-drunk syndrome (PDS) refers to a pathological condition in which higher brain dysfunction occurs in a delayed fashion in boxers who have suffered repeated blows to the head. However, the underlying mechanisms remain unknown. This study attempted to elucidate the mechanism of higher brain dysfunction observed following skull vibration in two experiments involving a rat model of PDS. Experiment 1 evaluated the effects of edaravone on histological changes in the rat brain tissue after skull vibration (frequency 20 Hz, amplitude 4 mm, duration 60 minutes). The amount of free radicals formed in response to skull vibration was very small, and edaravone administration reduced the number of glial fibrillary acidic protein and advanced glycation end product-positive cells. Experiment 2 examined the time course of change in learning ability following skull vibration in Tokai High Avoider rats. The learning ability of individual rats was evaluated by the Sidman-type electric shock avoidance test 5 days after the last session of skull vibration or final anesthesia and once a month for 9 consecutive months. Delayed learning disability was not observed in rats administered edaravone immediately after skull vibration. These results suggest that free radical-induced astrocyte activation and subsequent glial scar formation contribute to the occurrence of delayed learning disabilities. Edaravone administration after skull vibration suppressed glial scar formation, thereby inhibiting the occurrence of delayed learning disabilities.
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Affiliation(s)
- Jun Nomoto
- First Department of Neurosurgery, School of Medicine, Faculty of Medicine, Toho University Omori Medical Center, Tokyo, Japan.
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30
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Münch G, Westcott B, Menini T, Gugliucci A. Advanced glycation endproducts and their pathogenic roles in neurological disorders. Amino Acids 2010; 42:1221-36. [DOI: 10.1007/s00726-010-0777-y] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2010] [Accepted: 09/03/2010] [Indexed: 01/11/2023]
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31
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Ferrer I. Cognitive impairment of vascular origin: neuropathology of cognitive impairment of vascular origin. J Neurol Sci 2010; 299:139-49. [PMID: 20846674 DOI: 10.1016/j.jns.2010.08.039] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2010] [Revised: 08/15/2010] [Accepted: 08/24/2010] [Indexed: 12/31/2022]
Abstract
The term cognitive impairment of vascular origin is used to designate global cognitive deficits as well as focal neurological deficits such as aphasia, apraxia and agnosia of vascular/circulatory origin. It has been useful for identifying early clinical and neuroradiological alterations that might permit therapeutic strategies geared to curbing the progression of cerebrovascular disease. Multi-infarct encephalopathy, infarcts in strategic areas, lacunae and lacunar status, Binswanger's encephalopathy, hippocampal sclerosis, cortical granular atrophy and watershed infarcts are common lesions. Hypertension and vascular diseases such as arteriosclerosis, small blood vessel disease, inflammatory diseases of the blood vessels, Sneddon syndrome, cerebral amyloid angiopathies, cerebral autosomic dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL), and Maeda's syndrome are causative of cognitive impairment of vascular origin. Other less common causes are hereditary endotheliopathy with retinopathy, neuropathy and strokes (HERNS), cerebro-retinian vasculopathy (CRV), hereditary vascular retinopathy (HVR) (all three linked to 3p21.1-p21.3), hereditary infantile hemiparesis with arteriolar retinopathy and leukoencephalopathy (HIHRATL) (not linked to 3p21), fibromuscular dysplasia, and moya-moya disease. Lack of uniformity of clinical manifestations, the variety of vascular diseases and circulatory factors, the diverse, but often convergent, neuropathological substrates, and the common association with unrelated neurodegenerative diseases in the elderly, make it hard to assume a single clinical approach in the diagnosis and treatment of cognitive impairment of vascular origin. Rather, environmental and genetic risk factors, underlying vascular diseases, associated systemic, metabolic and neurodegenerative diseases and identification of extent and distribution of lesions with morphological and functional neuroimaging methods should be applied in every individual patient.
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Affiliation(s)
- Isidre Ferrer
- Institut de Neuropatologia, Servei Anatomia Patològica, IDIBELL-Hospital Universitari de Bellvitge, 08907 Hospitalet de LLobregat, Spain.
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Semba RD, Nicklett EJ, Ferrucci L. Does accumulation of advanced glycation end products contribute to the aging phenotype? J Gerontol A Biol Sci Med Sci 2010; 65:963-75. [PMID: 20478906 PMCID: PMC2920582 DOI: 10.1093/gerona/glq074] [Citation(s) in RCA: 321] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2009] [Accepted: 04/01/2010] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Aging is a complex multifactorial process characterized by accumulation of deleterious changes in cells and tissues, progressive deterioration of structural integrity and physiological function across multiple organ systems, and increased risk of death. METHODS We conducted a review of the scientific literature on the relationship of advanced glycation end products (AGEs) with aging. AGEs are a heterogeneous group of bioactive molecules that are formed by the nonenzymatic glycation of proteins, lipids, and nucleic acids. RESULTS Humans are exposed to AGEs produced in the body, especially in individuals with abnormal glucose metabolism, and AGEs ingested in foods. AGEs cause widespread damage to tissues through upregulation of inflammation and cross-linking of collagen and other proteins. AGEs have been shown to adversely affect virtually all cells, tissues, and organ systems. Recent epidemiological studies demonstrate that elevated circulating AGEs are associated with increased risk of developing many chronic diseases that disproportionally affect older individuals. CONCLUSIONS Based on these data, we propose that accumulation of AGEs accelerate the multisystem functional decline that occurs with aging, and therefore contribute to the aging phenotype. Exposure to AGEs can be reduced by restriction of dietary intake of AGEs and drug treatment with AGE inhibitors and AGE breakers. Modification of intake and circulating levels of AGEs may be a possible strategy to promote health in old age, especially because most Western foods are processed at high temperature and are rich in AGEs.
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Affiliation(s)
- Richard D Semba
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Smith Building, M015, 400 North Broadway, Baltimore, MD 21287, USA.
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Chen RL, Balami JS, Esiri MM, Chen LK, Buchan AM. Ischemic stroke in the elderly: an overview of evidence. Nat Rev Neurol 2010; 6:256-65. [PMID: 20368741 DOI: 10.1038/nrneurol.2010.36] [Citation(s) in RCA: 164] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Stroke mostly occurs in elderly people and patient outcomes after stroke are highly influenced by age. A better understanding of the causes of stroke in the elderly might have important practical implications not only for clinical management, but also for preventive strategies and future health-care policies. In this Review, we explore the evidence from both human and animal studies relating to the effect of old age-in terms of susceptibility, patient outcomes and response to treatment-on ischemic stroke. Several aging-related changes in the brain have been identified that are associated with an increase in vulnerability to ischemic stroke in the elderly. Furthermore, risk factor profiles for stroke and mechanisms of ischemic injury differ between young and elderly patients. Elderly patients with ischemic stroke often receive less-effective treatment and have poorer outcomes than younger individuals who develop this condition. Neuroprotective agents for ischemic stroke have been sought for decades but none has proved effective in humans. One contributing factor for this translational failure is that most preclinical studies have used young animals. Future research on ischemic stroke should consider age as a factor that influences stroke prevention and treatment, and should focus on the management of acute stroke in the elderly to reduce the incidence and improve outcomes in this vulnerable group.
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Affiliation(s)
- Ruo-Li Chen
- Nuffield Department of Medicine, University of Oxford, Headington, Oxford, UK
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Nelson PT, Smith CD, Abner EA, Schmitt FA, Scheff SW, Davis GJ, Keller JN, Jicha GA, Davis D, Wang-Xia W, Hartman A, Katz DG, Markesbery WR. Human cerebral neuropathology of Type 2 diabetes mellitus. BIOCHIMICA ET BIOPHYSICA ACTA 2009; 1792:454-69. [PMID: 18789386 PMCID: PMC2834412 DOI: 10.1016/j.bbadis.2008.08.005] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2008] [Revised: 08/09/2008] [Accepted: 08/14/2008] [Indexed: 12/15/2022]
Abstract
The cerebral neuropathology of Type 2 diabetes (CNDM2) has not been positively defined. This review includes a description of CNDM2 research from before the 'Pubmed Era'. Recent neuroimaging studies have focused on cerebrovascular and white matter pathology. These and prior studies about cerebrovascular histopathology in diabetes are reviewed. Evidence is also described for and against the link between CNDM2 and Alzheimer's disease pathogenesis. To study this matter directly, we evaluated data from University of Kentucky Alzheimer's Disease Center (UK ADC) patients recruited while non-demented and followed longitudinally. Of patients who had come to autopsy (N = 234), 139 met inclusion criteria. These patients provided the basis for comparing the prevalence of pathological and clinical indices between well-characterized cases with (N = 50) or without (N = 89) the premortem diagnosis of diabetes. In diabetics, cerebrovascular pathology was more frequent and Alzheimer-type pathology was less frequent than in non-diabetics. Finally, a series of photomicrographs demonstrates histopathological features (including clinical-radiographical correlation) observed in brains of persons that died after a history of diabetes. These preliminary, correlative, and descriptive studies may help develop new hypotheses about CNDM2. We conclude that more work should be performed on human material in the context of CNDM2.
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Affiliation(s)
- Peter T Nelson
- Department of Pathology, Division of Neuropathology, University of Kentucky Medical Center, Sanders-Brown Center on Aging and Alzheimer's Disease Center, University of Kentucky, Lexington, KY 40536-0230, USA.
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Lue LF, Walker DG, Jacobson S, Sabbagh M. Receptor for advanced glycation end products: its role in Alzheimer's disease and other neurological diseases. FUTURE NEUROLOGY 2009; 4:167-177. [PMID: 19885375 DOI: 10.2217/14796708.4.2.167] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The receptor for advanced glycation end products (RAGE) has been demonstrated to play a central role in the pathogenic mechanisms of a growing number of important neurological diseases, including Alzheimer's disease (AD) and stroke. Two functional types of RAGE have been associated with neurological diseases: cell membrane-bound (full length) and soluble. In general, ligand binding to full-length RAGE initiates sustained cellular activation and receptor-dependent signaling resulting in inflammation and cellular stress, and is ultimately associated with increased RAGE expression. By comparison, soluble forms of RAGE, generated either by alternative splicing or by proteolysis, can reduce the severity of the consequence of ligand-membrane RAGE interactions by preventing ligands from binding to the full-length RAGE. This can inhibit the neurotoxic or proinflammatory responses involved in disease states. This article reviews the pathobiology of RAGE, with emphasis on soluble forms of RAGE, and discusses its relevance to AD and to other neurological diseases, as well as how manipulation of the different forms of RAGE is becoming a powerful therapeutic strategy.
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Affiliation(s)
- Lih-Fen Lue
- Laboratory of Neuroinflammation, Sun Health Research Institute, 10515 West Santa Fe Drive, Sun City, AZ, USA,
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