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Ali MY, Zamponi GW, Abdul QA, Seong SH, Min BS, Jung HA, Choi JS. Prunin from Poncirus trifoliata (L.) Rafin Inhibits Aldose Reductase and Glucose-Fructose-Mediated Protein Glycation and Oxidation of Human Serum Albumin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:7203-7218. [PMID: 38518258 DOI: 10.1021/acs.jafc.3c09716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
Diabetes complications are associated with aldose reductase (AR) and advanced glycation end products (AGEs). Using bioassay-guided isolation by column chromatography, 10 flavonoids and one coumarin were isolated from Poncirus trifoliata Rafin and tested in vitro for an inhibitory effect against human recombinant AR (HRAR) and rat lens AR (RLAR). Prunin, narirutin, and naringin inhibited RLAR (IC50 0.48-2.84 μM) and HRAR (IC50 0.68-4.88 μM). Docking simulations predicted negative binding energies and interactions with the RLAR and HRAR binding pocket residues. Prunin (0.1 and 12.5 μM) prevented the formation of fluorescent AGEs and nonfluorescent Nε-(carboxymethyl) lysine (CML), as well as the fructose-glucose-mediated protein glycation and oxidation of human serum albumin (HSA). Prunin suppressed the formation of the β-cross-amyloid structure of HSA. These results indicate that prunin inhibits oxidation-dependent protein damage, AGE formation, and AR, which may help prevent diabetes complications.
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Affiliation(s)
- Md Yousof Ali
- Department of Clinical Neurosciences, Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary T2N 4N1, AB, Canada
| | - Gerald W Zamponi
- Department of Clinical Neurosciences, Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary T2N 4N1, AB, Canada
| | - Qudeer Ahmed Abdul
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea
| | - Su Hui Seong
- Natural Products Research Division, Honam National Institute of Biological Resources, Mokpo 58762, Republic of Korea
| | - Byung-Sun Min
- Drug Research and Development Center, College of Pharmacy, Daegu Catholic University, Gyeongbuk 38430, Republic of Korea
| | - Hyun Ah Jung
- Department of Food Science and Human Nutrition, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jae Sue Choi
- Department of Food and Life Science, Pukyong National University, Busan 48513, Republic of Korea
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2
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Uceda AB, Mariño L, Casasnovas R, Adrover M. An overview on glycation: molecular mechanisms, impact on proteins, pathogenesis, and inhibition. Biophys Rev 2024; 16:189-218. [PMID: 38737201 PMCID: PMC11078917 DOI: 10.1007/s12551-024-01188-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2024] [Indexed: 05/14/2024] Open
Abstract
The formation of a heterogeneous set of advanced glycation end products (AGEs) is the final outcome of a non-enzymatic process that occurs in vivo on long-life biomolecules. This process, known as glycation, starts with the reaction between reducing sugars, or their autoxidation products, with the amino groups of proteins, DNA, or lipids, thus gaining relevance under hyperglycemic conditions. Once AGEs are formed, they might affect the biological function of the biomacromolecule and, therefore, induce the development of pathophysiological events. In fact, the accumulation of AGEs has been pointed as a triggering factor of obesity, diabetes-related diseases, coronary artery disease, neurological disorders, or chronic renal failure, among others. Given the deleterious consequences of glycation, evolution has designed endogenous mechanisms to undo glycation or to prevent it. In addition, many exogenous molecules have also emerged as powerful glycation inhibitors. This review aims to provide an overview on what glycation is. It starts by explaining the similarities and differences between glycation and glycosylation. Then, it describes in detail the molecular mechanism underlying glycation reactions, and the bio-molecular targets with higher propensity to be glycated. Next, it discusses the precise effects of glycation on protein structure, function, and aggregation, and how computational chemistry has provided insights on these aspects. Finally, it reports the most prevalent diseases induced by glycation, and the endogenous mechanisms and the current therapeutic interventions against it.
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Affiliation(s)
- Ana Belén Uceda
- Departament de Química, Universitat de Les Illes Balears, Health Research Institute of the Balearic Islands (IdISBa), Ctra. Valldemossa Km 7.5, 07122 Palma, Spain
| | - Laura Mariño
- Departament de Química, Universitat de Les Illes Balears, Health Research Institute of the Balearic Islands (IdISBa), Ctra. Valldemossa Km 7.5, 07122 Palma, Spain
| | - Rodrigo Casasnovas
- Departament de Química, Universitat de Les Illes Balears, Health Research Institute of the Balearic Islands (IdISBa), Ctra. Valldemossa Km 7.5, 07122 Palma, Spain
| | - Miquel Adrover
- Departament de Química, Universitat de Les Illes Balears, Health Research Institute of the Balearic Islands (IdISBa), Ctra. Valldemossa Km 7.5, 07122 Palma, Spain
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3
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Skrajewski-Schuler LA, Soule LD, Geiger M, Spence D. UPLC-MS/MS method for quantitative determination of the advanced glycation endproducts Nε-(carboxymethyl)lysine and Nε-(carboxyethyl)lysine. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6698-6705. [PMID: 38047493 PMCID: PMC10720951 DOI: 10.1039/d3ay01817b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 11/24/2023] [Indexed: 12/05/2023]
Abstract
During blood storage, red blood cells (RBCs) undergo physical, chemical, and metabolic changes that may contribute to post-transfusion complications. Due to the hyperglycemic environment of typical solutions used for RBC storage, the formation of advanced glycation endproducts (AGEs) on the stored RBCs has been implicated as a detrimental chemical change during storage. Unfortunately, there are limited studies involving quantitative determination and differentiation of carboxymethyl-lysine (CML) and carboxyethyl-lysine (CEL), two commonly formed AGEs, and no reported studies comparing these AGEs in experimental storage solutions. In this study, CML and CEL were identified and quantified on freshly drawn blood samples in two types of storage solutions, standard additive solution 1 (AS-1) and a normoglycemic version of AS-1 (AS-1N). To facilitate detection of the AGEs, a novel method was developed to reliably extract AGEs from RBCs, provide Food and Drug Administration (FDA) bioanalytical guidance criteria, and enable acceptable selectivity for these analytes. Ultra-performance liquid chromatography with tandem mass spectrometry (UPLC-MS/MS) was utilized to identify and quantify the AGEs. Results show this method is accurate, precise, has minimal interferences or matrix effects, and overcomes the issue of detecting AGE byproducts. Importantly, AGEs can be detected and quantified in both types of blood storage solutions (AS-1 and AS-1N), thereby enabling long-term (6 weeks) blood storage related studies.
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Affiliation(s)
- Lauren A Skrajewski-Schuler
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
- Institute for Quantitative Health, Michigan State University, East Lansing, MI 48824, USA.
| | - Logan D Soule
- Institute for Quantitative Health, Michigan State University, East Lansing, MI 48824, USA.
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Morgan Geiger
- Institute for Quantitative Health, Michigan State University, East Lansing, MI 48824, USA.
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Dana Spence
- Institute for Quantitative Health, Michigan State University, East Lansing, MI 48824, USA.
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA
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Roth L, Dogan S, Tuna BG, Aranyi T, Benitez S, Borrell-Pages M, Bozaykut P, De Meyer GRY, Duca L, Durmus N, Fonseca D, Fraenkel E, Gillery P, Giudici A, Jaisson S, Johansson M, Julve J, Lucas-Herald AK, Martinet W, Maurice P, McDonnell BJ, Ozbek EN, Pucci G, Pugh CJA, Rochfort KD, Roks AJM, Rotllan N, Shadiow J, Sohrabi Y, Spronck B, Szeri F, Terentes-Printzios D, Tunc Aydin E, Tura-Ceide O, Ucar E, Yetik-Anacak G. Pharmacological modulation of vascular ageing: A review from VascAgeNet. Ageing Res Rev 2023; 92:102122. [PMID: 37956927 DOI: 10.1016/j.arr.2023.102122] [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: 07/05/2023] [Revised: 10/27/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023]
Abstract
Vascular ageing, characterized by structural and functional changes in blood vessels of which arterial stiffness and endothelial dysfunction are key components, is associated with increased risk of cardiovascular and other age-related diseases. As the global population continues to age, understanding the underlying mechanisms and developing effective therapeutic interventions to mitigate vascular ageing becomes crucial for improving cardiovascular health outcomes. Therefore, this review provides an overview of the current knowledge on pharmacological modulation of vascular ageing, highlighting key strategies and promising therapeutic targets. Several molecular pathways have been identified as central players in vascular ageing, including oxidative stress and inflammation, the renin-angiotensin-aldosterone system, cellular senescence, macroautophagy, extracellular matrix remodelling, calcification, and gasotransmitter-related signalling. Pharmacological and dietary interventions targeting these pathways have shown potential in ameliorating age-related vascular changes. Nevertheless, the development and application of drugs targeting vascular ageing is complicated by various inherent challenges and limitations, such as certain preclinical methodological considerations, interactions with exercise training and sex/gender-related differences, which should be taken into account. Overall, pharmacological modulation of endothelial dysfunction and arterial stiffness as hallmarks of vascular ageing, holds great promise for improving cardiovascular health in the ageing population. Nonetheless, further research is needed to fully elucidate the underlying mechanisms and optimize the efficacy and safety of these interventions for clinical translation.
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Affiliation(s)
- Lynn Roth
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium.
| | - Soner Dogan
- Department of Medical Biology, School of Medicine, Yeditepe University, Istanbul, Turkiye
| | - Bilge Guvenc Tuna
- Department of Biophysics, School of Medicine, Yeditepe University, Istanbul, Turkiye
| | - Tamas Aranyi
- Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary; Department of Molecular Biology, Semmelweis University, Budapest, Hungary
| | - Sonia Benitez
- CIBER de Diabetes y enfermedades Metabólicas asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain; Cardiovascular Biochemistry, Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
| | - Maria Borrell-Pages
- Cardiovascular Program ICCC, Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain; Centro de Investigación Biomédica en Red en Enfermedades Cardiovasculares (CIBER-CV), Instituto de Salud Carlos III, Madrid, Spain
| | - Perinur Bozaykut
- Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkiye
| | - Guido R Y De Meyer
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - Laurent Duca
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France
| | - Nergiz Durmus
- Department of Pharmacology, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkiye
| | - Diogo Fonseca
- Laboratory of Pharmacology and Pharmaceutical Care, Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal; Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal
| | - Emil Fraenkel
- 1st Department of Internal Medicine, University Hospital, Pavol Jozef Šafárik University of Košice, Košice, Slovakia
| | - Philippe Gillery
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France; Laboratoire de Biochimie-Pharmacologie-Toxicologie, Centre Hospitalier et Universitaire de Reims, Reims, France
| | - Alessandro Giudici
- Department of Biomedical Engineering, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands; GROW School for Oncology and Reproduction, Maastricht University, the Netherlands
| | - Stéphane Jaisson
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France; Laboratoire de Biochimie-Pharmacologie-Toxicologie, Centre Hospitalier et Universitaire de Reims, Reims, France
| | | | - Josep Julve
- CIBER de Diabetes y enfermedades Metabólicas asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain; Endocrinology, Diabetes and Nutrition group, Institut de Recerca Sant Pau (IR SANT PAU), Barcelona, Spain
| | | | - Wim Martinet
- Laboratory of Physiopharmacology, University of Antwerp, Antwerp, Belgium
| | - Pascal Maurice
- UMR CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), Team 2 "Matrix Aging and Vascular Remodelling", Université de Reims Champagne Ardenne (URCA), Reims, France
| | - Barry J McDonnell
- Centre for Cardiovascular Health and Ageing, Cardiff Metropolitan University, Cardiff, UK
| | - Emine Nur Ozbek
- Department of Pharmacology, Faculty of Pharmacy, Ege University, Izmir, Turkiye
| | - Giacomo Pucci
- Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Christopher J A Pugh
- Centre for Cardiovascular Health and Ageing, Cardiff Metropolitan University, Cardiff, UK
| | - Keith D Rochfort
- School of Nursing, Psychotherapy, and Community Health, Dublin City University, Dublin, Ireland
| | - Anton J M Roks
- Department of Internal Medicine, Division of Vascular Disease and Pharmacology, Erasmus Medical Center, Erasmus University, Rotterdam, the Netherlands
| | - Noemi Rotllan
- CIBER de Diabetes y enfermedades Metabólicas asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain; Pathophysiology of lipid-related diseases, Institut d'Investigació Biomèdica Sant Pau (IIB SANT PAU), Barcelona, Spain
| | - James Shadiow
- School of Kinesiology, University of Michigan, Ann Arbor, MI, USA
| | - Yahya Sohrabi
- Molecular Cardiology, Dept. of Cardiology I - Coronary and Peripheral Vascular Disease, University Hospital Münster, Westfälische Wilhelms-Universität, 48149 Münster, Germany; Department of Medical Genetics, Third Faculty of Medicine, Charles University, 100 00 Prague, Czechia
| | - Bart Spronck
- Department of Biomedical Engineering, CARIM School for Cardiovascular Diseases, Maastricht University, the Netherlands; Macquarie Medical School, Faculty of Medicine, Health and Human Sciences, Macquarie University, Australia
| | - Flora Szeri
- Institute of Enzymology, Research Centre for Natural Sciences, Budapest, Hungary
| | - Dimitrios Terentes-Printzios
- First Department of Cardiology, Hippokration Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - Elif Tunc Aydin
- Department of Cardiology, Hospital of Ataturk Training and Research Hospital, Katip Celebi University, Izmir, Turkiye
| | - Olga Tura-Ceide
- Biomedical Research Institute-IDIBGI, Girona, Spain; Department of Pulmonary Medicine, Hospital Clínic-Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Respiratorias, Madrid, Spain
| | - Eda Ucar
- Department of Biophysics, School of Medicine, Yeditepe University, Istanbul, Turkiye
| | - Gunay Yetik-Anacak
- Department of Pharmacology, Faculty of Pharmacy, Ege University, Izmir, Turkiye; Department of Pharmacology, Faculty of Pharmacy, Acıbadem Mehmet Aydinlar University, Istanbul, Turkiye.
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5
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Tobeh NS, Bruce KD. Emerging Alzheimer's disease therapeutics: promising insights from lipid metabolism and microglia-focused interventions. Front Aging Neurosci 2023; 15:1259012. [PMID: 38020773 PMCID: PMC10630922 DOI: 10.3389/fnagi.2023.1259012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/03/2023] [Indexed: 12/01/2023] Open
Abstract
More than 55 million people suffer from dementia, with this number projected to double every 20 years. In the United States, 1 in 3 aged individuals dies from Alzheimer's disease (AD) or another type of dementia and AD kills more individuals than breast cancer and prostate cancer combined. AD is a complex and multifactorial disease involving amyloid plaque and neurofibrillary tangle formation, glial cell dysfunction, and lipid droplet accumulation (among other pathologies), ultimately leading to neurodegeneration and neuronal death. Unfortunately, the current FDA-approved therapeutics do not reverse nor halt AD. While recently approved amyloid-targeting antibodies can slow AD progression to improve outcomes for some patients, they are associated with adverse side effects, may have a narrow therapeutic window, and are expensive. In this review, we evaluate current and emerging AD therapeutics in preclinical and clinical development and provide insight into emerging strategies that target brain lipid metabolism and microglial function - an approach that may synergistically target multiple mechanisms that drive AD neuropathogenesis. Overall, we evaluate whether these disease-modifying emerging therapeutics hold promise as interventions that may be able to reverse or halt AD progression.
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Affiliation(s)
- Nour S. Tobeh
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Kimberley D. Bruce
- Division of Endocrinology, Metabolism and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
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Rowe MM, Wang W, Taufalele PV, Reinhart-King CA. AGE-breaker ALT711 reverses glycation-mediated cancer cell migration. SOFT MATTER 2022; 18:8504-8513. [PMID: 36325938 PMCID: PMC10287025 DOI: 10.1039/d2sm00004k] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Diabetes is associated with increased risk of breast cancer and worse prognoses for cancer patients. Hyperglycemia can result in increased glycation, the process wherein crosslinkages are formed between sugars and extracellular matrix (ECM) proteins through the formation of advanced glycation endproducts (AGEs). Although accumulation of AGEs occurs naturally in vivo over time, it is greatly accelerated by the hyperglycemic environment of diabetic patients. AGE accumulation has been linked to stiffening-related diseases such as hypertension, cancer metastasis, and neurodegenerative disorders. In response, several AGE-inhibiting and AGE-breaking drugs have received significant attention for their ability to reduce AGE accumulation. The resulting effects of these drugs on cell behavior is not well understood. In this study, we measured cancer cell migration in glycated collagen with and without the AGE-breaking drug alagebrium chloride (ALT711) to investigate the drug's ability to disrupt ECM crosslinks and reduce tumor cell spreading, contractility, and migration. The mechanical properties and chemical composition of collagen glycated with increasing concentrations of glucose with and without ALT711 treatment were measured. Increasing glucose concentration resulted in increased AGE accumulation and matrix stiffness as well as increased cancer cell contractility, elongation, and migration. Treatment with ALT711 significantly lowered AGE accumulation within the collagen, decreased collagen stiffness, and reduced cell migration. These findings suggest that while hyperglycemia can increase collagen matrix stiffness, resulting in increased breast cancer cell migration, an AGE-breaker can reverse this phenotype and may be a viable treatment option for reducing cancer cell migration due to glycation.
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Affiliation(s)
- Matthew M Rowe
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA.
| | - Wenjun Wang
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA.
| | - Paul V Taufalele
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA.
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Accumulation of Advanced Glycation End-Products in the Body and Dietary Habits. Nutrients 2022; 14:nu14193982. [PMID: 36235635 PMCID: PMC9572209 DOI: 10.3390/nu14193982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/07/2022] [Accepted: 09/22/2022] [Indexed: 11/17/2022] Open
Abstract
The formation of advanced glycation end-products (AGE) in tissues is a physiological process; however, excessive production and storage are pathological and lead to inflammation. A sedentary lifestyle, hypercaloric and high-fructose diet and increased intake of processed food elements contribute to excessive production of compounds, which are created in the non-enzymatic multi-stage glycation process. The AGE’s sources can be endogenous and exogenous, mainly due to processing food at high temperatures and low moisture, including grilling, roasting, and frying. Accumulation of AGE increases oxidative stress and initiates various disorders, leading to the progression of atherosclerosis, cardiovascular disease, diabetes and their complications. Inborn defensive mechanisms, recovery systems, and exogenous antioxidants (including polyphenols) protect from excessive AGE accumulation. Additionally, numerous products have anti-glycation properties, occurring mainly in fruits, vegetables, herbs, and spices. It confirms the role of diet in the prevention of civilization diseases.
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Mouanness M, Nava H, Dagher C, Merhi Z. Contribution of Advanced Glycation End Products to PCOS Key Elements: A Narrative Review. Nutrients 2022; 14:nu14173578. [PMID: 36079834 PMCID: PMC9460172 DOI: 10.3390/nu14173578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
In the last decade, data has suggested that dietary advanced glycation end products (AGEs) play an important role in both reproductive and metabolic dysfunctions associated with polycystic ovary syndrome (PCOS). AGEs are highly reactive molecules that are formed by the non-enzymatic glycation process between reducing sugars and proteins, lipids, or nucleic acids. They can be formed endogenously under normal metabolic conditions or under abnormal situations such as diabetes, renal disease, and other inflammatory disorders. Bodily AGEs can also accumulate from exogenous dietary sources particularly when ingested food is cooked and processed under high-temperature conditions, such as frying, baking, or grilling. Women with PCOS have elevated levels of serum AGEs that are associated with insulin resistance and obesity and that leads to a high deposition of AGEs in the ovarian tissue causing anovulation and hyperandrogenism. This review will describe new data relevant to the role of AGEs in several key elements of PCOS phenotype and pathophysiology. Those elements include ovarian dysfunction, hyperandrogenemia, insulin resistance, and obesity. The literature findings to date suggest that targeting AGEs and their cellular actions could represent a novel approach to treating PCOS symptoms.
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Affiliation(s)
| | - Henry Nava
- Rejuvenating Fertility Center, New York, NY 10019, USA
| | - Christelle Dagher
- Department of Obstetrics and Gynecology, American University of Beirut Medical Center, Beirut P.O. Box 100, Lebanon
| | - Zaher Merhi
- Rejuvenating Fertility Center, New York, NY 10019, USA
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, SUNY Downstate Health Sciences University, Brooklyn, NY 11203, USA
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Maimonides Medical Center, Brooklyn, NY 11219, USA
- Correspondence: ; Tel.: +1-(203)-557-9696
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Aidhen IS, Srikanth S, Lal H. The Emerging Promise with O/C‐Glycosides of Important Dietary Phenolic Compounds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Indrapal Singh Aidhen
- Indian Institute of Technology Madras Department of Chemistry Adyar 600036 Chennai INDIA
| | | | - Heera Lal
- Indian Institute of Technology Madras Chemistry 600036 Chennai INDIA
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10
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Ahmad S, Al-Shaghdali K, Rehman S, Khan MY, Rafi Z, Faisal M, Alatar AA, Tahir IK, Khan S, Ahmad S, Shahab U. Nonenzymatic glycosylation of isolated human immunoglobulin-G by D-ribose. Cell Biochem Funct 2022; 40:526-534. [PMID: 35707967 DOI: 10.1002/cbf.3722] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/13/2022] [Accepted: 05/25/2022] [Indexed: 12/15/2022]
Abstract
Glycation is vital in terms of its damaging effect on macromolecules resulting in the formation of end products, which are highly reactive and cross-linked irreversible structures, known as advanced glycation end products (AGEs). The continuous accumulation of AGEs is associated with severe diabetes and its associated ailments. Saccharides with their reducing ends can glycate amino acid side chains of proteins, among them glucose is well-known for its potent glycating capability. However, other reducing sugars can be more reactive glycating agents than glucose. The D-ribose is a pentose sugar-containing an active aldehyde group in its open form and is responsible for affecting the biological processes of the cellular system. D-ribose, a key component of many biological molecules, is more reactive than most reducing sugars. Protein glycation by reducing monosaccharides such as D-ribose promotes the accelerated formation of AGEs that could lead to cellular impairments and dysfunctions. Also, under a physiological cellular state, the bioavailability rate of D-ribose is much higher than that of glucose in diabetes, which makes this species much more active in protein glycation as compared with D-glucose. Due to the abnormal level of D-ribose in the biological system, the glycation of proteins with D-ribose needs to be analyzed and addressed carefully. In the present study, human immunoglobulin G (IgG) was isolated and purified via affinity column chromatography. D-ribose at 10 and 100 mM concentrations was used as glycating agent, for 1-12 days of incubation at 37°C. The postglycation changes in IgG molecule were characterized by UV-visible and fluorescence spectroscopy, nitroblue tetrazolium assay, and various other physicochemical analyses for the confirmation of D-ribose mediated IgG glycation.
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Affiliation(s)
- Saheem Ahmad
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Khalid Al-Shaghdali
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, University of Hail, Hail, Saudi Arabia
| | - Shahnawaz Rehman
- Department of Biochemistry, S.S. Faculty of Science, Mohammad Ali Jauhar University, Rampur, India
| | - Mohd Yasir Khan
- Department of Biotechnology, School of Applied & Life Science (SALS), Uttaranchal University, Dehradun, India
| | - Zeeshan Rafi
- Department of Biosciences, Integral University, Lucknow, India
| | - Mohammad Faisal
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abdulrahman A Alatar
- Department of Botany & Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Iram Khan Tahir
- Department of Zoology, S.S. Faculty of Science, Mohammad Ali Jauhar University, Rampur, India
| | - Saif Khan
- Department of Basic Dental Sciences, College of Dental Sciences, University of Hail, Saudi Arabia
| | - Shafeeque Ahmad
- Department of Biochemistry, Al-Falah School of Medical Science and Research Centre, Al-Falah University, Dhauj, India
| | - Uzma Shahab
- Department of Biochemistry, Jawahar Lal Nehru Medical College, Aligarh Muslim University, Aligarh, India
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Skin accumulation of advanced glycation end products and cardiovascular risk in Korean patients with type 2 diabetes mellitus. Heliyon 2022; 8:e09571. [PMID: 35711980 PMCID: PMC9192809 DOI: 10.1016/j.heliyon.2022.e09571] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 03/01/2022] [Accepted: 05/25/2022] [Indexed: 12/02/2022] Open
Abstract
Background The formation of advanced glycation end products (AGEs) takes place during normal aging; however, their production is faster in people having diabetes. The accumulated AGEs reportedly play a role in the occurrence of various age-related disorders. Furthermore, the skin autofluorescence (SAF) technique can be used to detect accumulated AGEs levels. There are few reports on the association between skin accumulation of AGEs and risk of complications in type 2 diabetes mellitus. Methods In this study, we aimed to describe the association between the skin accumulation of AGEs and cardiovascular risk factors in Korean patients with type 2 diabetes. A total of 310 Korean patients with diabetes were enrolled, and the levels of AGEs were measured using SAP. Levels of fasting blood glucose (FBS), triglycerides, total cholesterol, low- and high-density lipoprotein cholesterol, proteinuria, arterial pulse wave velocity (PWV), and blood vessel age were measured using an automatic waveform analyzer. General linear models were used to identify the independent effect of AGEs after adjusting for covariates (age, weight, and duration of diabetes). Results The skin levels of AGEs were strongly correlated with the diabetes duration. Significant independent associations were observed for AGEs with FBS (P < 0.01), proteinuria (P < 0.001), and PWV (P < 0.001). The advanced glycated product was independently associated to the arterial pulse wave conduction velocity that is used as a representative method for measuring arteriosclerosis by analysis early cardiovascular risk factors. Conclusion Our results show that an increase in SAF levels in Korean patients with type 2 diabetes is associated with PWV and vein age, and thereby with arterial stiffness. Therefore, our results suggest that AGEs are associated with cardiovascular risk factors. The level of AGEs can thus be used as an indicator of cardiovascular diseases in the clinical diagnosis of patients with type 2 diabetes. Unclear association between skin accumulation of AGEs and T2DM complication risk. Study Population: Korean patients with T2DM. Strong correlation between skin levels of AGEs and diabetes duration. Independent association between AGEs and arterial pulse wave conduction velocity. Association between increased SAF levels in with PWV, vein age, arterial stiffness.
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12
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Dawood M, Younus ZM, Alnori M, Mahmood S. The Biological Role of Advanced Glycation End Products in the Development and Progression of Colorectal Cancer. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.9926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
“Colorectal cancer” (CRC) is one of the most prevalent cancers, posing a scientific challenge and serving as a model for investigating the molecular pathways underlying its development. “Advanced glycation end products” (AGEs) have drawn interest in this context. The buildup of these diverse, chemically complex groups, which are formed by a “non-enzymatic interaction” between reducing sugar and a range of macromolecules, significantly increases “inflammation and oxidative stress” in the body, which has long been associated to cancer formation. The traditional pathways that promote AGE formation, as well as the significance of AGEs’ interaction with the receptor for “advanced glycation end products” (RAGE) and other means involved in CRC initiation and progression, are discussed in this review.
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13
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Singh Aidhen I, Thoti N. Natural Products & Bioactivity Inspired Synthetic Pursuits Interfacing with Carbohydrates: Ongoing Journey with C-Glycosides. CHEM REC 2021; 21:3131-3177. [PMID: 34714570 DOI: 10.1002/tcr.202100216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/27/2021] [Indexed: 12/14/2022]
Abstract
Natural products, remains the most important source for the discovery of new drugs for the treatment of human diseases. This has inspired the synthetic community to design and develop mimics of natural products either to answer important questions in biology or to explore their therapeutic potentials. Glycosides present themselves abundantly in nature, right from the cell surface receptors to natural products of any origin. The O-Glycosides are hydrolytically less stable compared to C-glycosides and this feature has presented a great opportunity for drug discovery. The discovery of Dapagliflozin, an SGLT inhibitor and C-glucoside, for the treatment of diabetes is one such example. Aryl acyl-anion chemistry has been explored for the synthesis of 2-deoxy-C-aryl furanoside/pyranoside/septanosides. Besides success, the studies have provided valuable insight into the natural propensities of the architectural framework for the cascade to furan derivatives. The aryl acyl-anion chemistry has also enabled the synthesis of biologically active diaryl heptanoids. Inspired from sucesss of Dapagliflozin, new analogues have been synthesized with pyridine and isocoumarin heterocycle as the proximal ring. C-glucosides of isoliquiritigenin have been synthesized for the first time and evaluated as an efficient aldose reductase inhibitor. The synthesis and evaluation of acyl-C-β-D-glucosides and benzyl-C-β-D-glucoside as glucose-uptake promoters has revealed promise in small molecules. The concept of building blocks has been used to obtain natural oxylipins, D-xylo and L-xylo-configured alkane tetrols and novel lipophilic ketones with erythro/threo configured trihydroxy polar head-group as possible anti-mycobacterial agents.
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Affiliation(s)
- Indrapal Singh Aidhen
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Naveenkumar Thoti
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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14
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An integrated molecular modeling protocol for drug screening based on conceptual density functional theory and chemoinformatics for the study of marine cyclopeptides. J Mol Model 2021; 27:314. [PMID: 34623510 DOI: 10.1007/s00894-021-04901-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/01/2021] [Indexed: 10/20/2022]
Abstract
An integrated molecular modeling protocol resulting from the combination of conceptual density functional theory (CDFT) chemical reactivity descriptors with several chemoinformatics tools has been used for the study of the chemical reactivity and bioactivity properties of a group of marine cyclic peptides. CP-CDFT is a branch of computational chemistry and molecular modeling dedicated to the study of peptides. The protocol allowed the estimation of the CDFT-based reactivity indices together with the associated physicochemical parameters that can help to identify the ability of the studied peptides to behave as potential useful drugs. This was complemented with an analysis of the bioactivity and pharmacokinetics parameters related to the ADMET (absorption, distribution, metabolism, excretion, and toxicity) features. Some examples related to the ability of the CDFT-based chemical reactivity descriptors for the prediction of the pKas of the peptides as well as their potential as AGE inhibitors are also presented.
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15
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Grewal AS, Thapa K, Kanojia N, Sharma N, Singh S. Natural Compounds as Source of Aldose Reductase (AR) Inhibitors for the Treatment of Diabetic Complications: A Mini Review. Curr Drug Metab 2021; 21:1091-1116. [PMID: 33069193 DOI: 10.2174/1389200221666201016124125] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/07/2020] [Accepted: 07/18/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Aldol reductase (AR) is the polyol pathway's main enzyme that portrays a crucial part in developing 'complications of diabetes' involving cataract, retinopathy, nephropathy, and neuropathy. These diabetic abnormalities are triggered tremendously via aggregation of sorbitol formation (catalyzed by AR) in the polyol pathway. Consequently, it represents an admirable therapeutic target and vast research was done for the discovery of novel molecules as potential AR inhibitors for diabetic complications. OBJECTIVE This review article has been planned to discuss an outline of diabetic complications, AR and its role in diabetic complications, natural compounds reported as AR inhibitors, and benefits of natural/plant derived AR inhibitors for the management of diabetic abnormalities. RESULTS The goal of AR inhibition remedy is to stabilize the increased flux of blood glucose and sorbitol via the 'polyol pathway' in the affected tissues. A variety of synthetic inhibitors of AR have been established such as tolrestat and sorbinil, but both of these face limitations including low permeability and health problems. Pharmaceutical industries and other scientists were also undertaking work to develop newer, active, and 'safe' AR inhibitors from natural sources. Therefore, several naturally found molecules were documented to possess a potent inhibitory action on AR activity. CONCLUSION Natural inhibitors of AR appeared as harmless pharmacological agents for controlling diabetic complications. The detailed literature throughout this article shows the significance of herbal extracts and phytochemicals as prospective useful AR inhibitors in treating diabetic complications.
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Affiliation(s)
- Ajmer Singh Grewal
- Chitkara School of Basic Sciences, Chitkara University, Himachal Pradesh, India
| | - Komal Thapa
- Chitkara School of Basic Sciences, Chitkara University, Himachal Pradesh, India
| | - Neha Kanojia
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Neelam Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Sukhbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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16
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Velichkova S, Foubert K, Pieters L. Natural Products as a Source of Inspiration for Novel Inhibitors of Advanced Glycation Endproducts (AGEs) Formation. PLANTA MEDICA 2021; 87:780-801. [PMID: 34341977 DOI: 10.1055/a-1527-7611] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Protein glycation, a post-translational modification found in biological systems, is often associated with a core defect in glucose metabolism. In particular, advanced glycation endproducts are complex heterogeneous sugar-derived protein modifications implicated in the progression of pathological conditions such as atherosclerosis, diabetic complications, skin diseases, rheumatism, hypertension, and neurodegenerative diseases. Undoubtedly, there is the need to expand the knowledge about antiglycation agents that can offer a therapeutic approach in preventing and treating health issues of high social and economic importance. Although various compounds have been under consideration, little data from clinical trials are available, and there is a lack of approved and registered antiglycation agents. Next to the search for novel synthetic advanced glycation endproduct inhibitors, more and more the efforts of scientists are focusing on researching antiglycation compounds from natural origin. The main purpose of this review is to provide a thorough overview of the state of scientific knowledge in the field of natural products from plant origin (e.g., extracts and pure compounds) as inhibitors of advanced glycation endproduct formation in the period between 1990 and 2019. Moreover, the objectives of the summary also include basic chemistry of AGEs formation and classification, pathophysiological significance of AGEs, mechanisms for inhibiting AGEs formation, and examples of several synthetic anti-AGEs drugs.
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Affiliation(s)
- Stefaniya Velichkova
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Kenn Foubert
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
| | - Luc Pieters
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, Antwerp, Belgium
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17
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Park JJ, Lee WY. Anti-glycation effect of Ecklonia cava polysaccharides extracted by combined ultrasound and enzyme-assisted extraction. Int J Biol Macromol 2021; 180:684-691. [PMID: 33766590 DOI: 10.1016/j.ijbiomac.2021.03.118] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/17/2021] [Accepted: 03/21/2021] [Indexed: 11/16/2022]
Abstract
The anti-glycation effects of polysaccharides from Ecklonia cava were examined according to extraction method-hot buffer (HP), ultrasound (UP), enzyme (EP), or a combination of ultrasound and enzyme (UEP). The physicochemical properties, monosaccharide compositions, and structural characteristics of the polysaccharides were determined. UP, EP, and UEP had higher fucose and galactose compositions than HP. The FT-IR spectra of samples showed the presence of sulfate esters and 4-sulfate galactose. 1H NMR indicated that alginate was removed by purification. UP, EP, and UEP possessed higher sulfate contents than HP. UEP presented with the highest extraction yield and lowest protein and uronic acid contents. The levels of AGE formation, as well as fructosamine, α-dicarbonyl, and protein carbonyl contents were determined during a 3-week incubation in a BSA/fructose system. UEP and UP effectively inhibited AGE, although the inhibition effect was lower than that of aminoguanidine. However, UP and UEP showed higher inhibition of fructosamine, α-dicarbonyl, and protein carbonyl than aminoguanidine. AGE formation was negatively correlated with sulfate content and some monosaccharide compositions (fucose, galactose, and glucose), but positively correlated with molecular weight. Overall, the present study suggests that UEP is a suitable extraction method for obtaining anti-glycation agents from E. cava.
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Affiliation(s)
- Jong Jin Park
- School of Food Science and Technology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Won Young Lee
- School of Food Science and Technology, Kyungpook National University, Daegu 41566, Republic of Korea.
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18
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Jeong GH, Park S, Kim SB, Jo C, Kim TH. Molecular hybridization based on (-)-epigallocatechin gallate as a new class of antiglycation agents. Biosci Biotechnol Biochem 2021; 85:1069-1076. [PMID: 33704410 DOI: 10.1093/bbb/zbab020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 01/19/2021] [Indexed: 11/12/2022]
Abstract
(-)-Epigallocatechin gallate (EGCG) and olivetol hybrid molecules 1-4 were conveniently synthesized using dielectric barrier discharge plasma irradiation. The structures of these unprecedented hybrid molecules were determined by interpretation of spectroscopic data. The unusual hybrid 1 showed improved antiglycation potency toward the advanced formation of glycation end products than the original EGCG and olivetol. The novel hybrid 1 is an interesting new class of antiglycation candidate that requires further investigation.
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Affiliation(s)
- Gyeong Han Jeong
- Department of Food Science and Biotechnology, Daegu University, Gyeongsan, Republic of Korea
| | - Seungil Park
- Plasma Technology Research Center, National Fusion Research Institute, Gunsan, Republic of Korea
| | - Seong Bong Kim
- Plasma Technology Research Center, National Fusion Research Institute, Gunsan, Republic of Korea
| | - Cheorun Jo
- Department of Agricultural Biotechnology, Center for Food Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul, Republic of Korea
| | - Tae Hoon Kim
- Department of Food Science and Biotechnology, Daegu University, Gyeongsan, Republic of Korea
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19
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Yousof Ali M, Jannat S, Mizanur Rahman M. Ginsenoside derivatives inhibit advanced glycation end-product formation and glucose-fructose mediated protein glycation in vitro via a specific structure-activity relationship. Bioorg Chem 2021; 111:104844. [PMID: 33798848 DOI: 10.1016/j.bioorg.2021.104844] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 01/29/2021] [Accepted: 03/18/2021] [Indexed: 12/23/2022]
Abstract
Ginseng (Panax ginseng and red ginseng) extract has been reported to inhibit the formation of advanced glycation end-products (AGEs); however, the potential inhibitory activity of its major constituents (ginsenosides) against AGE formation is still unknown. In the present study, we investigated the inhibitory effect of ginsenoside derivatives on AGE formation. Herein, we assessed the activity of 22 ginsenosides, most of which significantly inhibited fluorescent AGE formation. Notably, ginsenoside Rh2, ginsenoside Rh1, and compound K exhibited the most potent AGE inhibitory potential with IC50 values of 3.38, 8.42, and 10.85 µM, respectively. The structure- activity relationship revealed that the presence of sugar moieties, hydroxyl groups, and their linkages, and the stereostructure of the ginsenoside skeleton played an important role in the inhibition of AGE formation. Furthermore, the inhibitory activity of the most active ginsenoside Rh2 on fructose-glucose-mediated protein glycation and oxidation of bovine serum albumin (BSA) was explored. Rh2 (0.1-12.5 µM) inhibited the formation of fluorescent AGE and non-fluorescent AGE, as well as the level of fructosamine and prevented protein oxidation by decreasing protein carbonyl formation and protein thiol group modification. Rh2 also suppressed the formation of the β-cross amyloid structure of BSA. Ginsenosides might be promising new anti-glycation agents for the prevention of diabetic complications via inhibition of AGE formation and oxidation-dependent protein damage.
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Affiliation(s)
- Md Yousof Ali
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, AB, Canada; Department of Chemistry and Biochemistry, Faculty of Arts and Science, Concordia University, 7141 Sherbrooke St. W., Montreal, Quebec, Canada; Department of Biology, Faculty of Arts and Science, Concordia University, 7141 Sherbrooke St. W., Montreal, Quebec, Canada; Centre for Structural and Functional Genomic, Dept. of Biology, Faculty of Arts and Science, Concordia University, 7141 Sherbrooke St. W., Montreal, QC, Canada.
| | - Susoma Jannat
- Department of Biochemistry and Molecular Biology, University of Calgary, T2N 1N4 Alberta, Canada
| | - M Mizanur Rahman
- Department of Biotechnology and Genetic Engineering, Islamic University, Kushtia 7003, Bangladesh
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20
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Toraman A, Arabaci T, Aytekin Z, Albayrak M, Bayir Y. Effects of vitamin C local application on ligature-induced periodontitis in diabetic rats. J Appl Oral Sci 2020; 28:e20200444. [PMID: 33263670 PMCID: PMC7695129 DOI: 10.1590/1678-7757-2020-0444] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 08/31/2020] [Indexed: 04/09/2023] Open
Abstract
Objective: This study evaluated the effects of local vitamin C treatment on tissue advanced glycation end products (AGE), interleukin (IL)-6, 8-hydroxy-2-deoxyguanosine (8-OHdG), and matrix metalloproteinases (MMP)-8 in tissues; serum C-terminal telopeptide fragments (CTX); and alveolar bone loss (ABL) in rats. Methodology: 35 male Sprague Dawley rats were divided equally into five groups: 1) control (C), 2) experimental periodontitis (P), 3) experimental diabetes (D), 4) experimental diabetes and experimental periodontitis (D + P), and 5) experimental diabetes–experimental periodontitis–locally applied vitamin C (D + P + LvitC). Diabetes was induced in rats with alloxan monohydrate, after which periodontitis was induced by ligature placement in the right mandibular first molar teeth for 11 days. In the treatment group, vitamin C was administered locally three times with two-days interval after ligature removal. The animals were sacrificed, and the samples were analyzed histometrically and immunohistochemically. Results: CTX, 8-OHdG, and AGE values significantly decreased in the treatment group compared to the D + P group. IL-6 and MMP-8 values decreased in the treatment group compared to the D + P group, but this is not significant. ABL was significantly reduced by the local delivery of vitamin C. Conclusion: This study reveals that vitamin C treatment may be beneficial to reduce serum CTX and gingival MMP-8 levels, oxidative stress, inflammation, and AGE accumulation in periodontal tissue. Vitamin C may be an immunomodulator and antioxidant locally applied in the treatment of periodontitis to reduce the adverse effects of diabetes in periodontal tissues.
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Affiliation(s)
- Ayşe Toraman
- Sağlık Bilimleri University, Faculty of Dentistry, Department of Periodontology, İstanbul, Turkey
| | - Taner Arabaci
- Atatürk University, Faculty of Dentistry, Department of Periodontology, Erzurum, Turkey
| | - Zeliha Aytekin
- Akdeniz University, Faculty of Dentistry, Department of Periodontology, Antalya, Turkey
| | - Mevlüt Albayrak
- Ataturk University, Health Services Vocational Training School, Department of Medical Laboratory Techniques, Erzurum, Turkey
| | - Yasin Bayir
- Atatürk University, Faculty of Pharmacy Department of Basic Pharmacy Sciences, Department of Biochemistry, Erzurum, Turkey
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21
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Jeong GH, Kim TH. Radiolytic Cyclization Products of Phloridzin as Potent Anti-Glycation Agents. Chem Biodivers 2020; 17:e2000305. [PMID: 32627292 DOI: 10.1002/cbdv.202000305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/03/2020] [Indexed: 11/09/2022]
Abstract
The current research examined for radiolytic structure modification and improved bioefficacy of phloridzin by γ-ray, subsequent to a 50 kGy irradiation dose. Structures of the unusual degraded products phlorocyclin, isophlorocyclin, and radiophlorisin were determined spectroscopically, by detailed nuclear magnetic resonance (NMR) and mass spectrometry (MS). Additionally, absolute configuration of the novel cyclized phlorocyclin and isophlorocyclin were proposed by circular dichroism (CD) spectrum analysis. Among the compounds tested, phlorocyclin and isophlorocyclin exhibit potent antidiabetic complication capacities toward advanced glycation end products (AGEs) formation inhibition assay, with IC50 values of 9.1±0.5 and 13.8±0.7 μM, respectively. Furthermore, the predominantly formed products phlorocyclin and isophlorocyclin exerted significantly enhanced DPPH radical scavenging activity compared to the parent phloridzin. These results indicate that γ-ray mediated cyclization of phloridzin exerts a positive influence on the bioactivity.
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Affiliation(s)
- Gyeong Han Jeong
- Department of Food Science and Biotechnology, Daegu University, Gyeongsan, 38453, Republic of, Korea
| | - Tae Hoon Kim
- Department of Food Science and Biotechnology, Daegu University, Gyeongsan, 38453, Republic of, Korea
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22
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El-Far AH, Sroga G, Al Jaouni SK, Mousa SA. Role and Mechanisms of RAGE-Ligand Complexes and RAGE-Inhibitors in Cancer Progression. Int J Mol Sci 2020; 21:ijms21103613. [PMID: 32443845 PMCID: PMC7279268 DOI: 10.3390/ijms21103613] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/02/2020] [Accepted: 05/08/2020] [Indexed: 12/26/2022] Open
Abstract
Interactions of the receptor for advanced glycation end product (RAGE) and its ligands in the context of their role in diabetes mellitus, inflammation, and carcinogenesis have been extensively investigated. This review focuses on the role of RAGE-ligands and anti-RAGE drugs capable of controlling cancer progression. Different studies have demonstrated interaction of RAGE with a diverse range of acidic (negatively charged) ligands such as advanced glycation end products (AGEs), high-mobility group box1 (HMGB1), and S100s, and their importance to cancer progression. Some RAGE-ligands displayed effects on anti- and pro-apoptotic proteins through upregulation of the phosphatidylinositide 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR), mitogen-activated protein kinases (MAPKs), matrix metalloproteinases (MMPs), vascular endothelial growth factor (VEGF), and nuclear factor kappa B (NF-κB) pathways, while downregulating p53 in cancer progression. In addition, RAGE may undergo ligand-driven multimodal dimerization or oligomerization mediated through self-association of some of its subunits. We conclude our review by proposing possible future lines of study that could result in control of cancer progression through RAGE inhibition.
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Affiliation(s)
- Ali H. El-Far
- Department of Biochemistry, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Damanhour 22511, Egypt;
| | - Grazyna Sroga
- Rensselaer Polytechnic Institute, NY (RPI), Troy, NY 12180, USA;
| | - Soad K. Al Jaouni
- Department of Hematology/Pediatric Oncology, King Abdulaziz University, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Shaker A. Mousa
- The Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Rensselaer, NY 12144, USA
- Correspondence:
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The Antiglycation Effect of Monomethyl Branched Chained Fatty Acid and Phytochemical Compounds and their Synergistic Effect on Obesity Related Colorectal Cancer Cell Panel. ROMANIAN JOURNAL OF DIABETES NUTRITION AND METABOLIC DISEASES 2020. [DOI: 10.2478/rjdnmd-2019-0039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Abstract
Background and aims: monomethyl branched chain fatty acids (mmBCFA) and phytochemicals including: Hydroxycitric Acid, Chlorogenic Acid and Piperine have been considered as an interesting agent for researches due to their role in diabetes and cancer. The present study examines the antiglycation effect of mmBCFA and phytochemicals and investigate their Synergistic effect on different colorectal cancer cell lines.
Methods: This study was carried out by using murine monocyte-macrophage cell line and Methylglyoxal (MGO) to enhance the glycation process, furthermore to examine the antiproliferative effect of both the mmBCFA and phytochemicals we use Sulforhodamine B (SRB) assay against obesity related-colorectal cancer cell line panel.
Results: Both phytochemicals and mmBCFA have a higher antiglycation effect than Aminoguanidine (AMG) significantly, moreover, all of the phytochemicals and mmBCFA have antiproliferative against SW620, CACO2 and SW480, nevertheless none of these agents was equipotent to Cisplatin, furthermore, the synergetic effect observed only when we co-incubate Piperine with mmBCFA.
Conclusions: phytochemicals such as Hydroxycitric Acid, Chlorogenic Acid and Piperine and mmBCFA could be used as treatment to prevents the accumulation of advanced glycation end-products (AGEs) in diabetes. Furthermore, the co-incubation between these compounds can inhibit cancer growth, as alternative therapeutic strategy against obesity related-colorectal cancer.
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Gibson GE, Luchsinger JA, Cirio R, Chen H, Franchino-Elder J, Hirsch JA, Bettendorff L, Chen Z, Flowers SA, Gerber LM, Grandville T, Schupf N, Xu H, Stern Y, Habeck C, Jordan B, Fonzetti P. Benfotiamine and Cognitive Decline in Alzheimer's Disease: Results of a Randomized Placebo-Controlled Phase IIa Clinical Trial. J Alzheimers Dis 2020; 78:989-1010. [PMID: 33074237 PMCID: PMC7880246 DOI: 10.3233/jad-200896] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND In preclinical models, benfotiamine efficiently ameliorates the clinical and biological pathologies that define Alzheimer's disease (AD) including impaired cognition, amyloid-β plaques, neurofibrillary tangles, diminished glucose metabolism, oxidative stress, increased advanced glycation end products (AGE), and inflammation. OBJECTIVE To collect preliminary data on feasibility, safety, and efficacy in individuals with amnestic mild cognitive impairment (aMCI) or mild dementia due to AD in a placebo-controlled trial of benfotiamine. METHODS A twelve-month treatment with benfotiamine tested whether clinical decline would be delayed in the benfotiamine group compared to the placebo group. The primary clinical outcome was the Alzheimer's Disease Assessment Scale-Cognitive Subscale (ADAS-Cog). Secondary outcomes were the clinical dementia rating (CDR) score and fluorodeoxyglucose (FDG) uptake, measured with brain positron emission tomography (PET). Blood AGE were examined as an exploratory outcome. RESULTS Participants were treated with benfotiamine (34) or placebo (36). Benfotiamine treatment was safe. The increase in ADAS-Cog was 43% lower in the benfotiamine group than in the placebo group, indicating less cognitive decline, and this effect was nearly statistically significant (p = 0.125). Worsening in CDR was 77% lower (p = 0.034) in the benfotiamine group compared to the placebo group, and this effect was stronger in the APOEɛ4 non-carriers. Benfotiamine significantly reduced increases in AGE (p = 0.044), and this effect was stronger in the APOEɛ4 non-carriers. Exploratory analysis derivation of an FDG PET pattern score showed a treatment effect at one year (p = 0.002). CONCLUSION Oral benfotiamine is safe and potentially efficacious in improving cognitive outcomes among persons with MCI and mild AD.
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Affiliation(s)
- Gary E. Gibson
- Brain and Mind Research Institute, Weil Cornell Medicine, New York, NY, USA
- Burke Neurological Institute, White Plains, NY, USA
| | - José A. Luchsinger
- Departments of Medicine and Epidemiology, Columbia University Irving Medical Center, New York, NY, USA
| | | | | | | | - Joseph A. Hirsch
- Burke Neurological Institute, White Plains, NY, USA
- Burke Rehabilitation Hospital, White Plains, NY, USA
- Lenox Hill Hospital, New York, NY, USA
| | - Lucien Bettendorff
- Laboratory of Neurophysiology, GIGA-Neurosciences, University of Liege, Belgium
| | - Zhengming Chen
- Department of Population Health Sciences, Weill Cornell Medicine, New York, NY, USA
| | - Sarah A. Flowers
- Department of Neuroscience, Georgetown University, Washington, DC, USA
| | - Linda M. Gerber
- Department of Population Health Sciences, Weill Cornell Medicine, New York, NY, USA
| | | | - Nicole Schupf
- Mailman School of Public Health, The Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, USA
| | - Hui Xu
- Burke Neurological Institute, White Plains, NY, USA
| | - Yaakov Stern
- Departments of Neurology, Psychiatry, GH Sergievsky Center, the Taub Institute for the Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, USA
| | - Christian Habeck
- Department of Neurology and the Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Columbia University Irving Medical Center, New York, NY, USA
| | - Barry Jordan
- Rancho Los Amigos National Rehabilitation Center, Downey, CA, USA
- Department of Neurology, Keck School of Medicine of USC, Los Angeles, CA, USA
| | - Pasquale Fonzetti
- Einstein College of Medicine, Bronx NY; Westmed Medical Group White Plains NY
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Orfanoudaki M, Hartmann A, Alilou M, Gelbrich T, Planchenault P, Derbré S, Schinkovitz A, Richomme P, Hensel A, Ganzera M. Absolute Configuration of Mycosporine-Like Amino Acids, Their Wound Healing Properties and In Vitro Anti-Aging Effects. Mar Drugs 2019; 18:E35. [PMID: 31906052 PMCID: PMC7024213 DOI: 10.3390/md18010035] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/20/2019] [Accepted: 12/28/2019] [Indexed: 01/01/2023] Open
Abstract
Mycosporine-like amino acids (MAAs) are water-soluble metabolites, reported to exhibit strong UV-absorbing properties. They have been found in a wide range of marine organisms, especially those that are exposed to extreme levels of sunlight, to protect them against solar radiation. In the present study, the absolute configuration of 14 mycosporine-like-amino acids was determined by combining the results of electronic circular dichroism (ECD) experiments and that of advanced Marfey's method using LC-MS. The crystal structure of a shinorine hydrate was determined from single crystal X-ray diffraction data and its absolute configuration was established from anomalous-dispersion effects. Furthermore, the anti-aging and wound-healing properties of these metabolites were evaluated in three different assays namely the inhibition of collagenase, inhibition of advanced glycation end products (AGEs) and wound healing assay (scratch assay).
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Affiliation(s)
- Maria Orfanoudaki
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (M.O.); (M.A.); (M.G.)
| | - Anja Hartmann
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (M.O.); (M.A.); (M.G.)
| | - Mostafa Alilou
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (M.O.); (M.A.); (M.G.)
| | - Thomas Gelbrich
- Institute of Pharmacy, Pharmaceutical Technology, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria;
| | - Patricia Planchenault
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, 16 Bd Daviers, 49045 Angers, France; (P.P.); (S.D.); (A.S.); (P.R.)
| | - Séverine Derbré
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, 16 Bd Daviers, 49045 Angers, France; (P.P.); (S.D.); (A.S.); (P.R.)
| | - Andreas Schinkovitz
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, 16 Bd Daviers, 49045 Angers, France; (P.P.); (S.D.); (A.S.); (P.R.)
| | - Pascal Richomme
- SONAS, EA921, University of Angers, SFR QUASAV, Faculty of Health Sciences, Department of Pharmacy, 16 Bd Daviers, 49045 Angers, France; (P.P.); (S.D.); (A.S.); (P.R.)
| | - Andreas Hensel
- Institute of Pharmaceutical Biology and Phytochemistry, University of Münster, Corrensstraße 48, D-48149 Münster, Germany;
| | - Markus Ganzera
- Institute of Pharmacy, Pharmacognosy, University of Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria; (M.O.); (M.A.); (M.G.)
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Chemical-Reactivity Properties, Drug Likeness, and Bioactivity Scores of Seragamides A–F Anticancer Marine Peptides: Conceptual Density Functional Theory Viewpoint. COMPUTATION 2019. [DOI: 10.3390/computation7030052] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A methodology based on concepts that arose from Density Functional Theory (CDFT) was chosen for the calculation of global and local reactivity descriptors of the Seragamide family of marine anticancer peptides. Determination of active sites for the molecules was achieved by resorting to some descriptors within Molecular Electron Density Theory (MEDT) such as Fukui functions. The pKas of the six studied peptides were established using a proposed relationship between this property and calculated chemical hardness. The drug likenesses and bioactivity properties of the peptides considered in this study were obtained by resorting to a homology model by comparison with the bioactivity of related molecules in their interaction with different receptors. With the object of analyzing the concept of drug repurposing, a study of potential AGE-inhibition abilities of Seragamides peptides was pursued by comparison with well-known drugs that are already available as pharmaceuticals.
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Abidar S, Yildiz O, Degirmenci A, Amakran A, El Maadoudi M, Nhiri M. Glucose-mediated protein glycation: Contribution of methanolic extract of Ceratonia siliqua L. in protection and in vitro potential inhibition of acetylcholinesterase. J Food Biochem 2019; 43:e13009. [PMID: 31393019 DOI: 10.1111/jfbc.13009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/02/2019] [Accepted: 07/12/2019] [Indexed: 01/11/2023]
Abstract
Chronic hyperglycemia presents the major etiology of diabetes mellitus and related complications mainly Alzheimer's disease, via the protein glycation and toxic products generated. In the current study, we investigated the eventual protective effect of the methanolic extract of Ceratonia siliqua L. (CsME) against glucose-mediated glycation in serum bovine albumin. The multi-stage glycation markers, namely fructosamines and advanced glycation end products (AGEs) levels were monitored along with measurement of thiol groups; moreover, the in vitro acetylcholinesterase (AChE) inhibition potential was carried out. HPLC was also assessed. Rutin was the main phenolic compound found in CsME. CsME showed a good capacity to inhibit AGEs, fructosamines and protected thiol groups against glycation. CsME exhibited a great AChE inhibition activity. In the present study, CsME prevented glucose-induced protein glycation, it also exhibited a good inhibition of AChE, suggesting its DM complications such as memory troubles related to AD. PRACTICAL APPLICATIONS: Neurodegenerative disorders ranging from memory troubles to Alzheimer's disease present the most diabetes mellitus complications and mainly attributed to protein glycation process. Currently, there is a strong trend to search for efficient natural sources of glycation and acetylcholinesterase inhibitors to replace the synthetic ones, whose secondary effects were shown. The present article tries to justify scientifically the wide use of Ceratonia siliqua L. in Moroccan folk medicine, demonstrating that the methanolic extract of leaves from this species presents a promising source of new natural compounds inhibiting acetylcholinesterase and acting in vitro against glycation generated compounds. Furthermore, for the first time, Rutin was the main phenolic compound found in this extract, these encouraging results should be coupled with further studies to integrate it in pharmaceutical formulations. As such, this paper should be of interest to a broad readership, including those interested in Biochemistry, Phytochemistry, pharmacology, and neurosciences.
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Affiliation(s)
- Sara Abidar
- Laboratoire de Biochimie et Génétique Moléculaire, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, Tanger Principal, Morocco
| | - Oktay Yildiz
- Maçka VHS, Department of Food Processing, Karadeniz Technical University, Trabzon, Turkey
| | - Atiye Degirmenci
- Maçka VHS, Department of Food Processing, Karadeniz Technical University, Trabzon, Turkey
| | - Amina Amakran
- Laboratoire de Biochimie et Génétique Moléculaire, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, Tanger Principal, Morocco
| | - Mohammed El Maadoudi
- Laboratoire Régional d'Analyses et de Recherches de l'ONSSA (office national de sécurité sanitaire des produits alimentaires), Tanger, Maroc
| | - Mohamed Nhiri
- Laboratoire de Biochimie et Génétique Moléculaire, Faculté des Sciences et Techniques, Université Abdelmalek Essaâdi, Tanger Principal, Morocco
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Tagliazucchi D, Martini S, Conte A. Protocatechuic and 3,4-Dihydroxyphenylacetic Acids Inhibit Protein Glycation by Binding Lysine through a Metal-Catalyzed Oxidative Mechanism. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:7821-7831. [PMID: 31260293 DOI: 10.1021/acs.jafc.9b02357] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The mechanism of inhibition of advanced glycation end product (AGE) formation by protocatechuic acid and 3,4-dihydroxyphenylacetic acid (DHPA) has been studied using a widespread applied in vitro model system composed of bovine serum albumin (BSA) and supraphysiological glucose concentrations. Protocatechuic acid and DHPA inhibited the formation of Amadori compounds, fluorescent AGEs (IC50 = 62.1 ± 1.4 and 155.4 ± 1.1 μmol/L, respectively), and Nε-(carboxymethyl)lysine (IC50 = 535.3 ± 1.1 and 751.2 ± 1.0 μmol/L, respectively). BSA was pretreated with the two phenolic acids, and the formation of BSA-phenolic acid adducts was estimated by nanoflow liquid chromatography-electrospray ionization-quadrupole time-of-flight mass spectrometry. Results showed that the tested phenolic acids bound key sites of glycation in BSA through a metal-catalyzed oxidative mechanism. The antiglycative activity mechanism involved the formation of BSA-phenolic acid adducts, and it is unlikely that this occurs in vivo. These results raise the problem to design in vitro models closer to physiological conditions to reach biologically sound conclusions.
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Affiliation(s)
- Davide Tagliazucchi
- Department of Life Sciences , University of Modena and Reggio Emilia , Via Amendola 2 , 42100 Reggio Emilia , Italy
| | - Serena Martini
- Department of Life Sciences , University of Modena and Reggio Emilia , Via Amendola 2 , 42100 Reggio Emilia , Italy
| | - Angela Conte
- Department of Life Sciences , University of Modena and Reggio Emilia , Via Amendola 2 , 42100 Reggio Emilia , Italy
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Computational prediction of bioactivity scores and chemical reactivity properties of the Parasin I therapeutic peptide of marine origin through the calculation of global and local conceptual DFT descriptors. Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2469-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kageyama H, Waditee-Sirisattha R. Antioxidative, Anti-Inflammatory, and Anti-Aging Properties of Mycosporine-Like Amino Acids: Molecular and Cellular Mechanisms in the Protection of Skin-Aging. Mar Drugs 2019; 17:E222. [PMID: 31013795 PMCID: PMC6521297 DOI: 10.3390/md17040222] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/02/2019] [Accepted: 04/10/2019] [Indexed: 12/17/2022] Open
Abstract
Prolonged exposure to ultraviolet (UV) radiation causes photoaging of the skin and induces a number of disorders, including sunburn, fine and coarse wrinkles, and skin cancer risk. Therefore, the application of sunscreen has gained much attention to reduce the harmful effects of UV irradiation on our skin. Recently, there has been a growing demand for the replacement of chemical sunscreens with natural UV-absorbing compounds. Mycosporine-like amino acids (MAAs), promising alternative natural UV-absorbing compounds, are a group of widely distributed, low molecular-weight, water-soluble molecules that can absorb UV radiation and disperse the absorbed energy as heat, without generating reactive oxygen species (ROS). More than 30 MAAs have been characterized, from a variety of organisms. In addition to their UV-absorbing properties, there is substantial evidence that MAAs have the potential to protect against skin aging, including antioxidative activity, anti-inflammatory activity, inhibition of protein-glycation, and inhibition of collagenase activity. This review will provide an overview of MAAs, as potential anti-aging ingredients, beginning with their structure, before moving on to discuss the most recent experimental observations, including the molecular and cellular mechanisms through which MAAs might protect the skin. In particular, we focus on the potential anti-aging activity of mycosporine-2-glycine (M2G).
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Affiliation(s)
- Hakuto Kageyama
- Department of Chemistry, Faculty of Science and Technology, Meijo University, 1-501 Shiogamaguchi, Tenpaku-ku, Nagoya, Aichi 468-8502, Japan.
| | - Rungaroon Waditee-Sirisattha
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand.
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Frau J, Flores-Holguín N, Glossman-Mitnik D. Chemical Reactivity Theory and Empirical Bioactivity Scores as Computational Peptidology Alternative Tools for the Study of Two Anticancer Peptides of Marine Origin. Molecules 2019; 24:E1115. [PMID: 30901820 PMCID: PMC6470772 DOI: 10.3390/molecules24061115] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/05/2019] [Accepted: 03/19/2019] [Indexed: 11/19/2022] Open
Abstract
This work presents an account of the reactivity behavior of the anticancer marine drugs, Soblidotin and Tasidotin, based on the calculation of the global and local descriptors resulting from Chemical Reactivity Theory (CRT), also known as Conceptual DFT, for their consideration as a useful complement to approximations based on Molecular Docking. The information on the global and local reactivity descriptors of the Soblidotin and Tasidotin molecules, obtained through our proposed methodology, may be used for the design of new pharmaceutical analogs by relying on the chemical interactions between these peptides and their protein-type biological receptors. It can be concluded that the CRT approximation to the global and local chemical reactivity, based on the descriptors, can provide interesting information for the consideration of both molecules as potential therapeutic drugs. This is complemented by a study on Advanced Glycation Endproduct (AGE) inhibition, by comparison with the usual molecular systems considered for the task, as a re-purposing study. Finally, the bioactivity scores for Soblidotin and Tasidotin are predicted through an empirical procedure, based on comparison with molecular structures with well-known pharmacological properties.
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Affiliation(s)
- Juan Frau
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain.
| | - Norma Flores-Holguín
- Laboratorio Virtual NANOCOSMOS, Departamento de Medio Ambiente y Energía, Centro de Investigación en Materiales Avanzados, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, Chih 31136, Mexico.
| | - Daniel Glossman-Mitnik
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain.
- Laboratorio Virtual NANOCOSMOS, Departamento de Medio Ambiente y Energía, Centro de Investigación en Materiales Avanzados, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, Chih 31136, Mexico.
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Laddha AP, Kulkarni YA. Tannins and vascular complications of Diabetes: An update. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 56:229-245. [PMID: 30668344 DOI: 10.1016/j.phymed.2018.10.026] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/19/2018] [Accepted: 10/20/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Diabetes mellitus is a chronic metabolic disorder associated with persistent increased level of glucose in the blood. According to a report by World Health Organisation (WHO), prevalence of diabetes among adults over 18 years of age had reached to 8.5% in year 2014 which was 4.7% in 1980s. The Prolong increased level of glucose in blood leads to development of microvascular (blindness, nephropathy and neuropathy) and macrovascular (cardiovascular and stroke) degenerative complications because of uncontrolled level of glucose in blood. This also leads to the progression of oxidative stress and affecting metabolic, genetic and haemodynamic system by activation of polyol pathway, protein kinase C pathway, hexosamine pathway and increases advanced glycation end products (AGEs) formation. Diabetes mellitus and its associated complications are one of the major leading causes of mortality worldwide. Various natural products like alkaloids, glycosides, flavonoids, terpenoids and polyphenols are reported for their activity in management of diabetes and its associated diabetic complications. Tannins are systematically studied by many researchers in past few decades for their effect in diabetes and its complications. AIM The present review was designed to compile the data of tannins and their beneficial effects in the management of diabetic complications. METHOD Literature search was performed using various dataset like pubmed, EBSCO, proQuest Scopus and selected websites including the National Institutes of Health (NIH) and the World Health Organization (WHO). RESULTS Globally, more than 400 natural products have been investigated in diabetes and its complications. Tannins are the polyphenolic compounds present in many medicinal plants and various dietary sources like fruits, nuts, grains, spices and beverages. Various reports have shown that compounds like gallic acid, ellagic acid, catechin, epicatechin and procynidins from medicinal plants play major role in controlling progression of diabetes and its related complications by acting on molecular pathways and key targets involved in progression. Many chemists used above mentioned phyto-constituents as a pharmacophore for the developing new chemical entities having higher therapeutic benefits in management of diabetic complications. CONCLUSION This review focuses on the role of various tannins in prevention and management of diabetic complications like diabetic nephropathy, diabetic neuropathy, diabetic retinopathy and diabetic cardiomyopathy. It will help researchers to find some leads for the development of new cost effective therapy using dietary source for the management of diabetic complications.
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Affiliation(s)
- Ankit P Laddha
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai 400 056, India
| | - Yogesh A Kulkarni
- Shobhaben Pratapbhai Patel School of Pharmacy & Technology Management, SVKM's NMIMS, V.L. Mehta Road, Vile Parle (W), Mumbai 400 056, India.
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Kazemi F, Divsalar A, Saboury AA, Seyedarabi A. Propolis nanoparticles prevent structural changes in human hemoglobin during glycation and fructation. Colloids Surf B Biointerfaces 2019; 177:188-195. [PMID: 30738325 DOI: 10.1016/j.colsurfb.2019.01.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 01/30/2023]
Abstract
Nowadays diabetes, as a metabolic disorder, is increasing at an alarming rate. Glycation and production of advanced glycation end products (AGEs) is the most important factor involved in diabetic complications. Due to the side effects of synthetic drugs, the demand for natural anti-diabetic herbal medicines has increased. Propolis is a natural and resinous material, which iscollected by honeybees. Due to the impact of nanotechnology in medicine and the advantageous role of nanoparticles in treatment, nano-propolis particles (PNP) were prepared. The anti-glycation effect of PNP at various concentrations was investigated on human hemoglobin (Hb) glycation and fructation and compared with aspirin as a common anti-glycation agent using glycation specific AGE fluorescence, AGE-specific absorbance and circular dichroism (CD) methods. Fluorescence spectroscopy results showed that PNP inhibited the formation of AGEs in Hb glycation and fructation by glucose and fructose, respectively. CD results revealed that PNP caused an increase in Hb beta-sheet content while decreasing the alpha helical content. Additionally, the results of UV-Vis spectroscopy and fluorescence emission of heme degradation products revealed the protective effect of PNP on heme during glycation and fructation of human Hb. It is notable that the synergistic effects of combined propolis nanoparticles and aspirin is more than either of them alone. However, having said that, PNP as a natural product has a potential to be an effective drug in the treatment of diabetes.
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Affiliation(s)
- Fatemeh Kazemi
- Institute of Biochemistry & Biophysics, University of Tehran, Tehran, Iran
| | - Adeleh Divsalar
- Department of Cell & Molecular Sciences, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran.
| | - Ali Akbar Saboury
- Institute of Biochemistry & Biophysics, University of Tehran, Tehran, Iran.
| | - Arefeh Seyedarabi
- Institute of Biochemistry & Biophysics, University of Tehran, Tehran, Iran
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Akoumianakis I, Antoniades C. Impaired Vascular Redox Signaling in the Vascular Complications of Obesity and Diabetes Mellitus. Antioxid Redox Signal 2019; 30:333-353. [PMID: 29084432 DOI: 10.1089/ars.2017.7421] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Significance: Oxidative stress, a crucial regulator of vascular disease pathogenesis, may be involved in the vascular complications of obesity, systemic insulin resistance (IR), and diabetes mellitus (DM). Recent Advances: Excessive production of reactive oxygen species in the vascular wall has been linked with vascular disease pathogenesis. Recent evidence has revealed that vascular redox state is dysregulated in cases of obesity, systemic IR, and DM, potentially participating in the well-known vascular complications of these disease entities. Critical Issues: The detrimental effects of obesity and the metabolic syndrome on vascular biology have been extensively described at a clinical level. Further, vascular oxidative stress has often been associated with the presence of obesity and IR as well as with a variety of detrimental vascular phenotypes. However, the mechanisms of vascular redox state regulation under conditions of obesity and systemic IR, as well as their clinical relevance, are not adequately explored. In addition, the notion of vascular IR, and its relationship with systemic parameters of obesity and systemic IR, is not fully understood. In this review, we present all the important components of vascular redox state and the evidence linking oxidative stress with obesity and IR. Future Directions: Future studies are required to describe the cellular effects and the translational potential of vascular redox state in the context of vascular disease. In addition, further elucidation of the direct vascular effects of obesity and IR is required for better management of the vascular complications of DM.
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Affiliation(s)
- Ioannis Akoumianakis
- Division of Cardiovascular Medicine, University of Oxford , Oxford, United Kingdom
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Yang SJ, Paudel P, Shrestha S, Seong SH, Jung HA, Choi JS. In vitro protein tyrosine phosphatase 1B inhibition and antioxidant property of different onion peel cultivars: A comparative study. Food Sci Nutr 2019; 7:205-215. [PMID: 30680174 PMCID: PMC6341175 DOI: 10.1002/fsn3.863] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/01/2018] [Accepted: 10/04/2018] [Indexed: 12/11/2022] Open
Abstract
The aim of the present study was a comparative investigation of water and 70% ethanol extracts derived from yellow and red onion (Allium cepa L.) peels against diabetes and diabetic complications. The total phenolic contents (TPCs) and total flavonoid contents (TFCs) of each cultivar, measured to assess phytochemical characteristics, showed a direct correlation with the in vitro antioxidant effects. Among the two captives, the yellow onion peel extract showed higher antioxidant activity than red one. However, all extracts exhibited significant protein tyrosine phosphatase 1B (PTP1B) inhibitory activity (IC50; 0.30-0.86 μg/ml), showing water extracts more potent (IC50; approximately 0.3 μg/mL), than the 70% ethanol extracts (IC50; approximately 0.8 μg/ml). Similarly, in insulin-resistant HepG2 cells, all extracts enhanced the glucose uptake and reduced the expression of PTP1B in a concentration-dependent manner, water extract displaying better activity. Our results overall suggest that in vitro antioxidant and antidiabetic potentials vary among red and yellow cultivars and extracting solvents, which could therefore be a promising strategy to prevent diabetes and associated complications.
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Affiliation(s)
- Su Jin Yang
- Department of Food and Life SciencePukyong National UniversityBusanKorea
| | - Pradeep Paudel
- Department of Food and Life SciencePukyong National UniversityBusanKorea
| | - Srijan Shrestha
- Department of Food and Life SciencePukyong National UniversityBusanKorea
| | - Su Hui Seong
- Department of Food and Life SciencePukyong National UniversityBusanKorea
| | - Hyun Ah Jung
- Department of Food Science and Human NutritionChonbuk National UniversityJeonjuKorea
| | - Jae Sue Choi
- Department of Food and Life SciencePukyong National UniversityBusanKorea
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Nowotny K, Schröter D, Schreiner M, Grune T. Dietary advanced glycation end products and their relevance for human health. Ageing Res Rev 2018; 47:55-66. [PMID: 29969676 DOI: 10.1016/j.arr.2018.06.005] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/26/2018] [Accepted: 06/27/2018] [Indexed: 12/23/2022]
Abstract
Due to their bioactivity and harmful potential, advanced glycation end products (AGEs) are discussed to affect human health. AGEs are compounds formed endogenously in the human body andexogenously, especially, in foods while thermal processing. In contrast to endogenous AGEs, dietary AGEs are formed in much higher extent. However, their risk potential is also depending on absorption, distribution, metabolism and elimination. For over 10 years an intense debate on the risk of dietary AGEs on human health is going on. On the one hand, studies provided evidence that dietary AGEs contribute to clinical outcomes. On the other hand, human studies failed to observe any association. Because it was not possible to draw a final conclusion, the call for new interdisciplinary approaches arose. In this review, we will give an overview on the current state of scientific knowledge in this field. In particular, we focus on (I) the occurrence of AGEs in foods and the daily uptake of AGEs, (II) contribution to endogenous levels and (III) the effect on health-/disease-related biomarkers in humans.
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Affiliation(s)
- Kerstin Nowotny
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany
| | - David Schröter
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; Leibniz Institute of Vegetable and Ornamental Crops Grossbeeren e.V. (IGZ), 14979 Grossbeeren, Germany; Institute of Food Chemistry, Hamburg School of Food Science, University of Hamburg, 20146 Hamburg, Germany
| | - Monika Schreiner
- Leibniz Institute of Vegetable and Ornamental Crops Grossbeeren e.V. (IGZ), 14979 Grossbeeren, Germany; NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14458 Nuthetal, Germany
| | - Tilman Grune
- Department of Molecular Toxicology, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558 Nuthetal, Germany; Institute of Nutrition, University of Potsdam, 14558 Nuthetal, Germany; German Center for Diabetes Research (DZD), 85764 München-Neuherberg, Germany; German Center for Cardiovascular Research (DZHK), 10117 Berlin, Germany; NutriAct-Competence Cluster Nutrition Research Berlin-Potsdam, 14458 Nuthetal, Germany.
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Rowan S, Bejarano E, Taylor A. Mechanistic targeting of advanced glycation end-products in age-related diseases. Biochim Biophys Acta Mol Basis Dis 2018; 1864:3631-3643. [PMID: 30279139 DOI: 10.1016/j.bbadis.2018.08.036] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 08/02/2018] [Accepted: 08/27/2018] [Indexed: 02/06/2023]
Abstract
Glycative stress, caused by the accumulation of cytotoxic and irreversibly-formed sugar-derived advanced glycation end-products (AGEs), contributes to morbidity associated with aging, age-related diseases, and metabolic diseases. In this review, we summarize pathways leading to formation of AGEs, largely from sugars and glycolytic intermediates, and discuss detoxification of AGE precursors, including the glyoxalase system and DJ-1/Park7 deglycase. Disease pathogenesis downstream of AGE accumulation can be cell autonomous due to aggregation of glycated proteins and impaired protein function, which occurs in ocular cataracts. Extracellular AGEs also activate RAGE signaling, leading to oxidative stress, inflammation, and leukostasis in diabetic complications such as diabetic retinopathy. Pharmaceutical agents have been tested in animal models and clinically to diminish glycative burden. We summarize existing strategies and point out several new directions to diminish glycative stress including: plant-derived polyphenols as AGE inhibitors and glyoxalase inducers; improved dietary patterns, particularly Mediterranean and low glycemic diets; and enhancing proteolytic capacities of the ubiquitin-proteasome and autophagy pathways that are involved in cellular clearing of AGEs.
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Affiliation(s)
- Sheldon Rowan
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, 711 Washington St, Boston, MA 02111, USA
| | - Eloy Bejarano
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, 711 Washington St, Boston, MA 02111, USA
| | - Allen Taylor
- Laboratory for Nutrition and Vision Research, USDA Human Nutrition Research Center on Aging, Tufts University, 711 Washington St, Boston, MA 02111, USA.
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Frau J, Flores-Holguín N, Glossman-Mitnik D. Chemical Reactivity Properties, p Ka Values, AGEs Inhibitor Abilities and Bioactivity Scores of the Mirabamides A⁻H Peptides of Marine Origin Studied by Means of Conceptual DFT. Mar Drugs 2018; 16:E302. [PMID: 30154377 PMCID: PMC6163382 DOI: 10.3390/md16090302] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 08/15/2018] [Accepted: 08/23/2018] [Indexed: 12/30/2022] Open
Abstract
The MN12SX density functional, in connection with the Def2TZVP basis set, was assessed, together with the SMD solvation model (Solvation Model based on the Density), for calculation of the molecular properties and structure of a group of peptides of marine origin named Mirabamides A⁻H. All the chemical reactivity descriptors for the systems were calculated via Conceptual Density Functional Theory (CDFT). The active sites suitable for nucleophilic, electrophilic, and radical attacks were chosen by linking them with the Fukui function indices, nucleophilic and electrophilic Parr functions, and condensed Dual Descriptor Δ f ( r ) , respectively. Additionally, the p K a values for the different peptides are predicted with great accuracy as well as the ability of the studied molecule in acting as an efficient inhibitor of the formation of Advanced Glycation Endproducts (AGEs), which constitutes a useful knowledge for the development of drugs for fighting Diabetes, Alzheimer and Parkinson diseases. Finally, the bioactivity scores for the Mirabamides A⁻H are predicted through different methodologies.
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Affiliation(s)
- Juan Frau
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain.
| | - Norma Flores-Holguín
- Laboratorio Virtual NANOCOSMOS, Departamento de Medio Ambiente y Energía, Centro de Investigación en Materiales Avanzados, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, 31136 Chih, Mexico.
| | - Daniel Glossman-Mitnik
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain.
- Laboratorio Virtual NANOCOSMOS, Departamento de Medio Ambiente y Energía, Centro de Investigación en Materiales Avanzados, Miguel de Cervantes 120, Complejo Industrial Chihuahua, Chihuahua, 31136 Chih, Mexico.
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Tarasuntisuk S, Patipong T, Hibino T, Waditee-Sirisattha R, Kageyama H. Inhibitory effects of mycosporine-2-glycine isolated from a halotolerant cyanobacterium on protein glycation and collagenase activity. Lett Appl Microbiol 2018; 67:314-320. [PMID: 29947423 DOI: 10.1111/lam.13041] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Revised: 06/14/2018] [Accepted: 06/25/2018] [Indexed: 01/07/2023]
Abstract
Mycosporine-2-glycine (M2G), isolated from the halotolerant cyanobacterium Aphanothece halophytica, was purified and characterized in order to determine its utility as a cosmetic and pharmaceutical ingredient. M2G efficiently inhibited protein crosslinking. The inhibitory activity of M2G was significantly greater than that of the well-known Maillard reaction inhibitor aminoguanidine. In addition, M2G and other known mycosporine-like amino acids inhibited bacterial collagenase activity. To the best of our knowledge, this is the first report describing that M2G specifically inhibits the formation of advanced glycation end-products (AGEs), which play a critical role in ageing process and age-related diseases. These observations indicate that M2G may have potential therapeutic applications by suppressing the formation of AGEs and inhibiting excess collagenase activity. SIGNIFICANCE AND IMPACT OF THE STUDY Mycosporine-like amino acids (MAAs) are known as multifunctional natural compounds. The MAA mycosporine-2-glycine (M2G), isolated from the halotolerant cyanobacterium Aphanothece halophytica, has potential therapeutic applications for the prevention of skin ageing. Purified M2G was endotoxin-free. M2G had greater inhibitory activity of protein cross-linking compared with well-known inhibitor, aminoguanidine and hindered bacterial collagenase activity. The mechanisms for these inhibitory activities of M2G are discussed in this study.
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Affiliation(s)
- S Tarasuntisuk
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - T Patipong
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - T Hibino
- Graduate School of Environmental and Human Sciences, Meijo University, Nagoya, Japan
| | - R Waditee-Sirisattha
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - H Kageyama
- Graduate School of Environmental and Human Sciences, Meijo University, Nagoya, Japan
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Sanchis P, Rivera R, Berga F, Fortuny R, Adrover M, Costa-Bauza A, Grases F, Masmiquel L. Phytate Decreases Formation of Advanced Glycation End-Products in Patients with Type II Diabetes: Randomized Crossover Trial. Sci Rep 2018; 8:9619. [PMID: 29941991 PMCID: PMC6018557 DOI: 10.1038/s41598-018-27853-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 06/12/2018] [Indexed: 01/13/2023] Open
Abstract
Myo-inositol hexaphosphate (phytate; IP6) is a natural compound that is abundant in cereals, legumes, and nuts and it has the ability to chelate metal cations. The binding of IP6 to transition metals suggests that it could be used for the treatment of metal-catalyzed protein glycation, which appears to trigger diabetes-related diseases. Our in vitro studies showed that IP6 reduced the formation of Fe3+-catalyzed advanced glycation end-products (AGEs). This led us to perform a randomized cross-over trial to investigate the impact of the daily consumption IP6 on protein glycation in patients with type 2 diabetes mellitus (T2DM; n = 33). Thus, we measured AGEs, glycated hemoglobin (HbA1c), several vascular risk factors, and urinary IP6 at baseline and at the end of the intervention period. Patients who consumed IP6 supplements for 3 months had lower levels of circulating AGEs and HbA1c than those who did not consume IP6. This is the first report to show that consumption of IP6 inhibits protein glycation in patients with T2DM. Considering that AGEs contribute to microvascular and macrovascular complications in T2DM, our data indicates that dietary supplementation with IP6 should be considered as a therapy to prevent the formation of AGEs and therefore, the development of diabetes-related diseases in patients with T2DM.
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Affiliation(s)
- Pilar Sanchis
- Endocrinology Department, Research Unit, Hospital Son Llàtzer, Institute of Health Sciences Research [IUNICS- IdISBa], 07198, Palma of Mallorca, Spain.
- Laboratory of Renal Lithiasis Research, University of Balearic Islands, Institute of Health Sciences Research [IUNICS- IdISBa], 07122, Palma of Mallorca, Spain.
| | - Rosmeri Rivera
- Endocrinology Department, Research Unit, Hospital Son Llàtzer, Institute of Health Sciences Research [IUNICS- IdISBa], 07198, Palma of Mallorca, Spain
| | - Francisco Berga
- Laboratory of Renal Lithiasis Research, University of Balearic Islands, Institute of Health Sciences Research [IUNICS- IdISBa], 07122, Palma of Mallorca, Spain
| | - Regina Fortuny
- Laboratory Department, Hospital Son Llàtzer, 07198, Palma of Mallorca, Spain
| | - Miquel Adrover
- Department of Chemistry, University of Balearic Islands, Ctra. Valldemossa km 7.5, 07122, Palma of Mallorca, Spain
| | - Antonia Costa-Bauza
- Laboratory of Renal Lithiasis Research, University of Balearic Islands, Institute of Health Sciences Research [IUNICS- IdISBa], 07122, Palma of Mallorca, Spain
| | - Felix Grases
- Laboratory of Renal Lithiasis Research, University of Balearic Islands, Institute of Health Sciences Research [IUNICS- IdISBa], 07122, Palma of Mallorca, Spain
| | - Luis Masmiquel
- Endocrinology Department, Research Unit, Hospital Son Llàtzer, Institute of Health Sciences Research [IUNICS- IdISBa], 07198, Palma of Mallorca, Spain.
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Cumaoğlu A, Yerer MB. The Effects of Aldose Reductase Inhibitor Quercetin and Monochloropivaloylquercetin in Amyloid β Peptide (1–42) Induced Neuroinflammation in Microglial Cells. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Microglial over-activation plays a crucial roles during neuroinflammation. Aldose reductase (AR) is one of the enzymes that has been linked to inflammatory processes in several diseases. Therefore, inhibition of AR is considered as an important strategy to reduce inflammation. In the present study, Quercetin (Q) and monochloropivaloylquercetin (MCPQ) showed potent inhibition on AR expression and anti-neuroinflammatory effects in Amyloid β (Aβ) peptide (1–42) induced inflammatory process by inhibiting expression of inflammatory mediators from microglial cells. Furthermore, ablation of AR caused a significant reduction on COX2 expression in Aβ-induced neuroinflammation. Q and MCPQ suppressed COX2 mRNA and protein expression, which further resulted in downstream inhibition of prostaglandin E2 (PGE2) release in Aβ-induced neuroinflammatory process. Additionally, Aβ treatment resulted in activation of Mitogen Activated Protein Kinase (MAPK) and increased translocation of Nuclear Factor Kappa B (NFκB). Q and Sorbinil significantly reduced the activation of MAPK, at the same time Q, MCPQ and sorbinil decreased nuclear translocation of NFκB and diminished tumor necrosis factor (TNF)-α release in Aβ-induced neuroinflammation. The results suggested that AR is a probable target for treatment of neuroinflammation as well as Q and MCPQ could be effective agents for treating or preventing inflammation-related neurodegenerative diseases by AR inhibition.
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Affiliation(s)
- Ahmet Cumaoğlu
- Department of Biochemistry, Faculty of Pharmacy, Erciyes University, Kayseri, 38039, Turkey
| | - Mükerrem Betül Yerer
- Department of Pharmacology, Faculty of Pharmacy, Erciyes University, Kayseri, 38039, Turkey
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Gumenyuk A, Rybalko S, Ryzha A, Savosko S, Labudzynskyi D, Levchuk N, Chaikovsky Y. Nerve Regeneration in Conditions of HSV-Infection and an Antiviral Drug Influence. Anat Rec (Hoboken) 2018; 301:1734-1744. [PMID: 29729212 DOI: 10.1002/ar.23848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 03/08/2018] [Accepted: 03/18/2018] [Indexed: 11/05/2022]
Abstract
Herpes simplex virus type I (HSV-I) is a latent neuroinfection which can cause focal brain lesion. The role of HSV-infection in nerve regeneration has not been studied so far. The aim of the work was to study sciatic nerve regeneration in the presence of HSV-infection and the influence of an antiviral drug. BALB/c line mice were divided into five groups. Group 1 animals were infected with HSV-I. After resolution of neuroinfection manifestations the sciatic nerve of these animals was crushed. Group 2 mice were administered acyclovir following the same procedures. Groups 3-5 mice served as controls. Thirty days after the operation distal nerve stumps and m.gastrocnemius were studied morphologically and biochemically. Ultrastructural organization of the sciatic nerve in control animals remained intact. Morphometric parameters of the nerves from the experimental groups have not reach control values. However, in the group 1 diameter of nerve fibers was significantly smaller than in the group 2. Both nerve regeneration and m.gastrocnemius reinnervation were confirmed. The muscle hypotrophy was found in groups 1, 2, and 3 (the muscle fibers diameter decreased). Metabolic changes in the muscles of the infected animals (groups 1 and 2) were more pronounced than in control groups 3 and 4. The levels of TBA-active products, conjugated dienes, carbonyl and SH-groups were reduced in m.gastrocnemius of the experimental groups, however no significant difference associated with acyclovir administration was found. HSV-infection is not limited to the local neurodegenerative changes in the CNS but affects regeneration of the injured sciatic nerve. Anat Rec, 301:1734-1744, 2018. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Alla Gumenyuk
- Department of Histology and Embryology, Bogomolets National Medical University, Kyiv, 01601, Ukraine
| | - Svetlana Rybalko
- Gromashevsky Institute of Epidemiology and Infectious Diseases, Kyiv, 03038, Ukraine
| | - Alona Ryzha
- Department of Cytology, Histology and Reproductive Medicine, Educational and Scientific Center "Institute of Biology and Medicine", Taras Shevchenko Kyiv National University, Kyiv, 03127, Ukraine
| | - Sergey Savosko
- Department of Histology and Embryology, Bogomolets National Medical University, Kyiv, 01601, Ukraine
| | - Dmytro Labudzynskyi
- Laboratory of Vitamins and Coenzymes Biochemistry, Palladin Institute of Biochemistry, Kyiv, 01601, Ukraine
| | - Natalia Levchuk
- Department of Fundamental and Applied Problems of Endocrinology, V.P. Komisarenko Institute of Endocrinology and Metabolism, Kyiv, 04114, Ukraine
| | - Yuri Chaikovsky
- Department of Histology and Embryology, Bogomolets National Medical University, Kyiv, 01601, Ukraine
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Kansu-Celik H, Tasci Y, Karakaya BK, Cinar M, Candar T, Caglar GS. Maternal serum advanced glycation end products level as an early marker for predicting preterm labor/PPROM: a prospective preliminary study. J Matern Fetal Neonatal Med 2018; 32:2758-2762. [PMID: 29506420 DOI: 10.1080/14767058.2018.1449202] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
OBJECTIVE To evaluate the value of maternal serum advanced glycation end products (AGEs) level at 11-13 weeks' gestation for the prediction of preterm labor and or preterm premature rupture of membranes (PPROM). MATERIALS AND METHODS This prospective cross-sectional study is performed in a university-affiliated hospital between February and April 2016. The participants of this study are low-risk pregnant women. Blood samples for maternal AGEs level were collected in the first trimester of pregnancy and all women completed their antenatal follow-up and delivered in our center. During the follow-up 21 women developed preterm labor/PPROM. The first trimester maternal AGEs levels of preterm labor/PPROM cases were compared with uncomplicated cases (n = 25) matched for age-parity and BMI. The predictive value of AGEs levels for preterm labor/PPROM was also assessed. RESULTS First-trimester AGEs levels were significantly higher in cases complicated with preterm labor/PPROM (1832 (415-6682) versus 1276 (466-6445) ng/L, p = .001 and 1722 (804-6682) versus 1343 (466-6445) ng/L, p = .025). According to receiver-operating characteristic curve analysis, the calculated cut off value of AGEs was 1538 ng/L with the sensitivity 91.7%, specificity 73.8%; and the negative and positive predictive values were 91.6% and 29.5%, respectively. CONCLUSIONS For the prediction of preterm labor/PPROM, the relatively high AGEs levels in the first trimester might be a useful marker.
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Affiliation(s)
- Hatice Kansu-Celik
- a Department of Obstetrics and Gynecology , Zekai Tahir Burak Woman's Health, Education and Research Hospital , Ankara , Turkey
| | - Yasemin Tasci
- a Department of Obstetrics and Gynecology , Zekai Tahir Burak Woman's Health, Education and Research Hospital , Ankara , Turkey
| | - Burcu Kisa Karakaya
- a Department of Obstetrics and Gynecology , Zekai Tahir Burak Woman's Health, Education and Research Hospital , Ankara , Turkey
| | - Mehmet Cinar
- a Department of Obstetrics and Gynecology , Zekai Tahir Burak Woman's Health, Education and Research Hospital , Ankara , Turkey
| | - Tuba Candar
- b Department of Biochemistry , Ufuk University School of Medicine , Ankara , Turkey
| | - Gamze Sinem Caglar
- c Department of Obstetrics and Gynecology , Ufuk University School of Medicine , Ankara , Turkey
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Ali MY, Jung HA, Jannat S, Choi JS. Dihydroxanthyletin-type coumarins from Angelica decursiva that inhibits the formation of advanced glycation end products and human recombinant aldose reductase. Arch Pharm Res 2017; 41:196-207. [DOI: 10.1007/s12272-017-0999-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 12/04/2017] [Indexed: 01/14/2023]
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Toprak C, Sirmagul B, Yigitaslan S. Functional Effects of Alagebrium (ALT-711)-Isolated Rat Carotid Artery. Eurasian J Med 2017; 49:188-192. [PMID: 29123442 DOI: 10.5152/eurasianjmed.2017.17046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Objective In our study, the effects of glycosylated protein cross-link breaker, alagebrium was investigated on isolated rat carotid artery using myography. Alagebrium showed vasodilator effect on carotid artery rings; particularly, this effect was significantly increased in endothelium-intact rings. Materials and Methods To clarify the vasodilator mechanism of alagebrium, different antagonists such as N(G)-Nitro-L-arginine methyl ester (L-NAME), glibenclamide, indomethacin, metoprolol, propranolol, tetraethylammonium, and calcium channel activator BAYK-8644 were used to reverse this effect. Results Relaxation% responses to alagebrium were more significantly increased in intact endothelium than in denuded arteries. Blocking vasodilation related to channels (K-ATP, PGI2, BKca) and receptors (ß1, ß2) did not reverse the relaxation response to alagebrium. Vasodilator response to alagebrium was only slightly decreased after L-NAME incubation and significantly decreased after BAYK-8644 incubation. Conclusion Results of present study suggest that the mechanism of alagebrium-induced vasodilator effect may include the blockage of L-type calcium channels and partially of the nitric oxide synthase enzyme.
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Affiliation(s)
- Cigdem Toprak
- Department of Pharmacology, Eskişehir Osmangazi University School of Medicine, Eskişehir, Turkey
| | - Basar Sirmagul
- Department of Pharmacology, Eskişehir Osmangazi University School of Medicine, Eskişehir, Turkey
| | - Semra Yigitaslan
- Department of Pharmacology, Eskişehir Osmangazi University School of Medicine, Eskişehir, Turkey
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Kazeem MI, Bankole HA, Fatai AA, Adenowo AF, Davies TC. Antidiabetic Functional Foods with Antiglycation Properties. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/978-3-319-54528-8_16-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Miroliaei M, Aminjafari A, Ślusarczyk S, Nawrot-Hadzik I, Rahimmalek M, Matkowski A. Inhibition of Glycation-induced Cytotoxicity, Protein Glycation, and Activity of Proteolytic Enzymes by Extract from Perovskia atriplicifolia Roots. Pharmacogn Mag 2017; 13:S676-S683. [PMID: 29142432 PMCID: PMC5669115 DOI: 10.4103/pm.pm_559_16] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 02/01/2017] [Indexed: 11/06/2022] Open
Abstract
Background: Protein glycation and glycotoxicity belong to the main oxidative-stress related complications in diabetes. Perovskia species are used in Asian folk medicine as antidiabetic herbs. Objective: The aim of this study was to verify the ability of the methanolic extract from Perovskia atriplicifolia Benth. roots to diminish glycation of albumin and to prevent cell damage in vitro. Furthermore, we tested the extract for in vitro antioxidant activity and inhibition of elastase and collagenase. Material and Methods: The aqueous methanol extract was analyzed by UHPLC-MS for the content of polyphenols and terpenoids. The prevention of glycated albumin-induced cell damage was tested in four mammalian cell lines (peripheral blood mononuclear cells, human embryonic kidney cells – HEK293, normal human fibroblasts, and Chinese hamster ovary cells) with the 5-(3-carboxymethoxyphenyl)-2-(4,5-dimethylthiazoly)-3-(4-sulfophenyl) tetrazolium assay. Results: Glycated albumin is significantly more toxic than native human serum albumin (LC50 from 35.00 to 48.34 μg/mL vs. 5.47–9.10 μg/mL, respectively). The extract, rich in rosmarinic acid (344.27 mg/g dry mass), mitigated the glycated albumin toxicity, and increased glycated albumin-treated cell survival by more than 50%. The inhibition of advanced glycation endproduct formation was confirmed by monitoring conformational changes. The free radical scavenging activity was higher than Trolox and metal reducing power was one-third to half that of ascorbic acid. The activity of elastase and collagenase was inhibited by 54.75% ± 6.87% and 60.03% ± 7.22%, respectively. Conclusions: The results confirm antiglycative and antiglycotoxic potential of Perovskia root and its traditional antidiabetic use. The high activity can be attributed to rosmarinic acid abundance. SUMMARY Perovskia is a small genus of aromatic shrubby plants growing in arid regions of Central and South Asia. Different parts are used in folk medicine as antiparasitic, anti-infectious and antidiabetic remedy. Here, we have studied the extract from roots for inhibition of: glycation-induced cytotoxicity, human serum albumin glycation, inflammation-related enzymes, as well as for antioxidant activity. Result: the extract from P. atriplicifolia roots inhibited protein glycation and AGE-induced toxicity in cell cultures. The mechanism is likely to rely on the antioxidant activity of high content of rosmarinic acid.
Abbreviations used: AGE: advanced glycation end-products; DPPH: 2,2-diphenyl-1-picrylhydrazyl; HSA: human serum albumin.
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Affiliation(s)
- Mehran Miroliaei
- Department of Biology, Division of Biochemistry, Cell and Molecular Biology, University of Isfahan, Isfahan, Iran
| | - Akram Aminjafari
- Department of Biology, Division of Biochemistry, Cell and Molecular Biology, University of Isfahan, Isfahan, Iran
| | - Sylwester Ślusarczyk
- Department of Pharmaceutical Biology and Botanical Garden of Medicinal Plants, Wroclaw Medical University, Wrocław, Poland.,Department of Crop Biochemistry, Institute of Soil Science and Plant Cultivation (IUNG), Pulawy, Poland
| | - Izabela Nawrot-Hadzik
- Department of Pharmaceutical Biology and Botanical Garden of Medicinal Plants, Wroclaw Medical University, Wrocław, Poland
| | - Mehdi Rahimmalek
- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, Iran
| | - Adam Matkowski
- Department of Pharmaceutical Biology and Botanical Garden of Medicinal Plants, Wroclaw Medical University, Wrocław, Poland
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Anwar Z, Sinha V, Mitra S, Mishra AK, Ansari MH, Bharti A, Kumar V, Nigam AK. Erectile Dysfunction: An Underestimated Presentation in Patients with Diabetes Mellitus. Indian J Psychol Med 2017; 39:600-604. [PMID: 29200555 PMCID: PMC5688886 DOI: 10.4103/0253-7176.217015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION Erectile dysfunction (ED) is a common complication of diabetes mellitus. ED, like other sexual disorders, is often under-reported and under-diagnosed, as talking about sex is considered a taboo in our society. METHODOLOGY All the male patients with diabetes mellitus (with or without active complaints of ED) attending Medicine or Psychiatry OPD of the institute during the study period were enrolled in the study. They were investigated for their body-mass index (BMI), blood sugar and lipid profile; and were assessed on HAM-D, General Health Questionnaire-30, IIEF, sex myth checklist and QOL Instrument for Indian Diabetes Patients (QOLID). RESULT AND DISCUSSION In the present study, a total of 138 diabetic patients were assessed, and those with severe ED were found to have poor glycemic control, worse lipid profile, higher body mass index, later age of onset, and longer duration of untreated diabetes as compared to non-ED patients. ED patients also scored higher on depression rating scale, had poorer general health and quality of life (QOL). Early attention to ED in diabetic patients can improve general health and QOL of the sufferers. CONCLUSION DM patients with poor glycemic control and advanced age have a higher propensity of developing severe ED, which further deteriorates the already compromised health & QOL.
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Affiliation(s)
- Zeeshan Anwar
- Department of Psychiatry, S. N. Medical College, Agra, Uttar Pradesh, India
| | - Vishal Sinha
- Department of Psychiatry, S. N. Medical College, Agra, Uttar Pradesh, India
| | - Sayantanava Mitra
- Department of Psychiatry, S. N. Medical College, Agra, Uttar Pradesh, India
| | | | | | - Abhishek Bharti
- Department of Psychiatry, S. N. Medical College, Agra, Uttar Pradesh, India
| | - Vipin Kumar
- Department of Psychiatry, S. N. Medical College, Agra, Uttar Pradesh, India
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Deluyker D, Evens L, Bito V. Advanced glycation end products (AGEs) and cardiovascular dysfunction: focus on high molecular weight AGEs. Amino Acids 2017; 49:1535-1541. [DOI: 10.1007/s00726-017-2464-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 07/07/2017] [Indexed: 12/27/2022]
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50
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The status of glycation in protein aggregation. Int J Biol Macromol 2017; 100:67-74. [DOI: 10.1016/j.ijbiomac.2015.12.085] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 12/28/2015] [Indexed: 12/15/2022]
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