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Mahmoud HM, Abdel-Razik ARH, Elrehany MA, Othman EM, Bekhit AA. Modified Citrus Pectin (MCP) Confers a Renoprotective Effect on Early-Stage Nephropathy in Type-2 Diabetic Mice. Chem Biodivers 2024; 21:e202400104. [PMID: 38588017 DOI: 10.1002/cbdv.202400104] [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: 01/15/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
Diabetic nephropathy (DN) is a significant global health concern with a high morbidity rate. Accumulating evidence reveals that Galectin-3 (Gal-3), a β-galactoside-binding lectin, is a biomarker in kidney diseases. Our study aimed to assess the advantageous impacts of modified citrus pectin (MCP) as an alternative therapeutic strategy for the initial and ongoing progression of DN in mice with type 2 diabetes mellitus (T2DM). The animal model has been split into four groups: control group, T2DM group (mice received intraperitoneal injections of nicotinamide (NA) and streptozotocin (STZ), T2DM+MCP group (mice received 100 mg/kg/day MCP following T2DM induction), and MCP group (mice received 100 mg/kg/day). After 4 weeks, kidney weight, blood glucose level, serum kidney function tests, histopathological structure alterations, oxidative stress, inflammation, apoptosis, and fibrosis parameters were determined in renal tissues. Our findings demonstrated that MCP treatment reduced blood glucose levels, renal histological damage, and restored kidney weight and kidney function tests. Additionally, MCP reduced malondialdehyde level and restored glutathione level, and catalase activity. MCP demonstrated a notable reduction in inflammatory and apoptosis mediators TNF-α, iNOS, TGF-βRII and caspase-3. Overall, MCP could alleviate renal injury in an experimental model of DN by suppressing renal oxidative stress, inflammation, fibrosis, and apoptosis mediators.
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Affiliation(s)
| | | | - Mahmoud A Elrehany
- Biochemistry Department, Faculty of Pharmacy, Deraya University, New Mina, Egypt
| | - Eman M Othman
- Biochemistry Department, Faculty of Pharmacy, Minia University, 65111, Minia, Egypt E-mail: amany
- Cancer Therapy Research Center, Biochemistry Department -I, Biocenter, University of Wuerzburg, Am Hubland, 97074, Würzburg, Germany
- Bioinformatics Department, Biocenter, University of Wuerzburg, Am Hubland, 97074, Würzburg, Germany
| | - Amany A Bekhit
- Biochemistry Department, Faculty of Pharmacy, Minia University, 65111, Minia, Egypt E-mail: amany
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2
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Guo J, Yan S, Jiang X, Su Z, Zhang F, Xie J, Hao E, Yao C. Advances in pharmacological effects and mechanism of action of cinnamaldehyde. Front Pharmacol 2024; 15:1365949. [PMID: 38903995 PMCID: PMC11187351 DOI: 10.3389/fphar.2024.1365949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 05/06/2024] [Indexed: 06/22/2024] Open
Abstract
Cinnamaldehyde is extracted from Cinnamomum cassia and other species, providing diverse sources for varying chemical properties and therapeutic effects. Besides natural extraction, synthetic production and biotechnological methods like microbial fermentation offer scalable and sustainable alternatives. Cinnamaldehyd demonstrates a broad pharmacological range, impacting various diseases through detailed mechanisms. This review aims to encapsulate the diverse therapeutic effects of cinnamaldehyde, its molecular interactions, and its potential in clinical applications. Drawing on recent scientific studies and databases like Web of Science, PubMed, and ScienceDirect, this review outlines cinnamaldehyde's efficacy in treating inflammatory conditions, bacterial infections, cancer, diabetes, and cardiovascular and kidney diseases. It primarily operates by inhibiting the NF-κB pathway and modulating pro-inflammatory mediators, alongside disrupting bacterial cells and inducing apoptosis in cancer cells. The compound enhances metabolic health by improving glucose uptake and insulin sensitivity and offers cardiovascular protection through its anti-inflammatory and lipid-lowering effects. Additionally, it promotes autophagy in kidney disease management. Preclinical and clinical research supports its therapeutic potential, underscoring the need for further investigation into its mechanisms and safety to develop new drugs based on cinnamaldehyde.
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Affiliation(s)
- Jiageng Guo
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
| | - Shidu Yan
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
| | - Xinya Jiang
- Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, China
| | - Zixia Su
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
| | - Fan Zhang
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
| | - Jinling Xie
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
| | - Erwei Hao
- Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Collaborative Innovation Center of Study on Functional Ingredients of Agricultural Residues, Guangxi University of Chinese Medicine, Nanning, China
- Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases, Guangxi University of Chinese Medicine, Nanning, China
- Engineering Research Center of Innovative Drugs for Traditional Chinese Medicine and Zhuang and Yao Medicine, Ministry of Education, Guangxi University of Chinese Medicine, Nanning, China
| | - Chun Yao
- Engineering Research Center of Innovative Drugs for Traditional Chinese Medicine and Zhuang and Yao Medicine, Ministry of Education, Guangxi University of Chinese Medicine, Nanning, China
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3
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Chen Z, Tian X, Chen C, Chen C. Research on disease diagnosis based on teacher-student network and Raman spectroscopy. Lasers Med Sci 2024; 39:129. [PMID: 38735976 DOI: 10.1007/s10103-024-04078-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 05/06/2024] [Indexed: 05/14/2024]
Abstract
Diabetic nephropathy is a serious complication of diabetes, and primary Sjögren's syndrome is a disease that poses a major threat to women's health. Therefore, studying these two diseases is of practical significance. In the field of spectral analysis, although common Raman spectral feature selection models can effectively extract features, they have the problem of changing the characteristics of the original data. The teacher-student network combined with Raman spectroscopy can perform feature selection while retaining the original features, and transfer the performance of the complex deep neural network structure to another lightweight network structure model. This study selects five flow learning models as the teacher network, builds a neural network as the student network, uses multi-layer perceptron for classification, and selects the optimal features based on the evaluation indicators accuracy, precision, recall, and F1-score. After five-fold cross-validation, the research results show that in the diagnosis of diabetic nephropathy, the optimal accuracy rate can reach 98.3%, which is 14.02% higher than the existing research; in the diagnosis of primary Sjögren's syndrome, the optimal accuracy rate can be reached 100%, which is 10.48% higher than the existing research. This study proved the feasibility of Raman spectroscopy combined with teacher-student network in the field of disease diagnosis by producing good experimental results in the diagnosis of diabetic nephropathy and primary Sjögren's syndrome.
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Affiliation(s)
- Zishuo Chen
- College of Software, Xinjiang University, Urumqi, Xinjiang, 830046, China
| | - Xuecong Tian
- College of Information Science and Engineering, Xinjiang University, Urumqi, Xinjiang, 830046, China
| | - Chen Chen
- College of Information Science and Engineering, Xinjiang University, Urumqi, Xinjiang, 830046, China
| | - Cheng Chen
- College of Software, Xinjiang University, Urumqi, Xinjiang, 830046, China.
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4
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Wang N, Zhang C. Oxidative Stress: A Culprit in the Progression of Diabetic Kidney Disease. Antioxidants (Basel) 2024; 13:455. [PMID: 38671903 PMCID: PMC11047699 DOI: 10.3390/antiox13040455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/01/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Diabetic kidney disease (DKD) is the principal culprit behind chronic kidney disease (CKD), ultimately developing end-stage renal disease (ESRD) and necessitating costly dialysis or kidney transplantation. The limited therapeutic efficiency among individuals with DKD is a result of our finite understanding of its pathogenesis. DKD is the result of complex interactions between various factors. Oxidative stress is a fundamental factor that can establish a link between hyperglycemia and the vascular complications frequently encountered in diabetes, particularly DKD. It is crucial to recognize the essential and integral role of oxidative stress in the development of diabetic vascular complications, particularly DKD. Hyperglycemia is the primary culprit that can trigger an upsurge in the production of reactive oxygen species (ROS), ultimately sparking oxidative stress. The main endogenous sources of ROS include mitochondrial ROS production, NADPH oxidases (Nox), uncoupled endothelial nitric oxide synthase (eNOS), xanthine oxidase (XO), cytochrome P450 (CYP450), and lipoxygenase. Under persistent high glucose levels, immune cells, the complement system, advanced glycation end products (AGEs), protein kinase C (PKC), polyol pathway, and the hexosamine pathway are activated. Consequently, the oxidant-antioxidant balance within the body is disrupted, which triggers a series of reactions in various downstream pathways, including phosphoinositide 3-kinase/protein kinase B (PI3K/Akt), transforming growth factor beta/p38-mitogen-activated protein kinase (TGF-β/p38-MAPK), nuclear factor kappa B (NF-κB), adenosine monophosphate-activated protein kinase (AMPK), and the Janus kinase/signal transducer and activator of transcription (JAK/STAT) signaling. The disease might persist even if strict glucose control is achieved, which can be attributed to epigenetic modifications. The treatment of DKD remains an unresolved issue. Therefore, reducing ROS is an intriguing therapeutic target. The clinical trials have shown that bardoxolone methyl, a nuclear factor erythroid 2-related factor 2 (Nrf2) activator, blood glucose-lowering drugs, such as sodium-glucose cotransporter 2 inhibitors, and glucagon-like peptide-1 receptor agonists can effectively slow down the progression of DKD by reducing oxidative stress. Other antioxidants, including vitamins, lipoic acid, Nox inhibitors, epigenetic regulators, and complement inhibitors, present a promising therapeutic option for the treatment of DKD. In this review, we conduct a thorough assessment of both preclinical studies and current findings from clinical studies that focus on targeted interventions aimed at manipulating these pathways. We aim to provide a comprehensive overview of the current state of research in this area and identify key areas for future exploration.
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Affiliation(s)
| | - Chun Zhang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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5
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Yu SS, Du JL. Current views on selenoprotein S in the pathophysiological processes of diabetes-induced atherosclerosis: potential therapeutics and underlying biomarkers. Diabetol Metab Syndr 2024; 16:5. [PMID: 38172976 PMCID: PMC10763436 DOI: 10.1186/s13098-023-01247-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 12/24/2023] [Indexed: 01/05/2024] Open
Abstract
Atherosclerotic cardiovascular disease (ASCVD) consistently ranks as the primary mortality factor among diabetic people. A thorough comprehension of the pathophysiological routes and processes activated by atherosclerosis (AS) caused by diabetes mellitus (DM), together with the recognition of new contributing factors, could lead to the discovery of crucial biomarkers and the development of innovative drugs against atherosclerosis. Selenoprotein S (SELENOS) has been implicated in the pathology and progression of numerous conditions, including diabetes, dyslipidemia, obesity, and insulin resistance (IR)-all recognized contributors to endothelial dysfunction (ED), a precursor event to diabetes-induced AS. Hepatic-specific deletion of SELENOS accelerated the onset and progression of obesity, impaired glucose tolerance and insulin sensitivity, and increased hepatic triglycerides (TG) and diacylglycerol (DAG) accumulation; SELENOS expression in subcutaneous and omental adipose tissue was elevated in obese human subjects, and act as a positive regulator for adipogenesis in 3T3-L1 preadipocytes; knockdown of SELENOS in Min6 β-cells induced β-cell apoptosis and reduced cell proliferation. SELENOS also participates in the early stages of AS, notably by enhancing endothelial function, curbing the expression of adhesion molecules, and lessening leukocyte recruitment-actions that collectively reduce the formation of foam cells. Furthermore, SELENOS forestalls the apoptosis of vascular smooth muscle cells (VSMCs) and macrophages, mitigates vascular calcification, and alleviates inflammation in macrophages and CD4+ T cells. These actions help stifle the creation of unstable plaque characterized by thinner fibrous caps, larger necrotic cores, heightened inflammation, and more extensive vascular calcification-features seen in advanced atherosclerotic lesion development. Additionally, serum SELENOS could function as a potential biomarker, and SELENOS single nucleotide polymorphisms (SNPs) rs4965814, rs28628459, and rs9806366, might be effective gene markers for atherosclerosis-related diseases in diabetes. This review accentuates the pathophysiological processes of atherosclerosis in diabetes and amasses current evidence on SELENOS's potential therapeutic benefits or as predictive biomarkers in the various stages of diabetes-induced atherosclerosis.
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Affiliation(s)
- Shan-Shan Yu
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China
- Dalian Key Laboratory of Prevention and Treatment of Metabolic Diseases and the Vascular Complications, Dalian, 116011, Liaoning, China
| | - Jian-Ling Du
- Department of Endocrinology and Metabolism, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, China.
- Dalian Key Laboratory of Prevention and Treatment of Metabolic Diseases and the Vascular Complications, Dalian, 116011, Liaoning, China.
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6
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Joshi SR, Atabay EK, Liu J, Ding Y, Briscoe SD, Alexander MJ, Andre P, Kumar R, Li G. Sotatercept analog improves cardiopulmonary remodeling and pulmonary hypertension in experimental left heart failure. Front Cardiovasc Med 2023; 10:1064290. [PMID: 36910526 PMCID: PMC9996114 DOI: 10.3389/fcvm.2023.1064290] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 01/19/2023] [Indexed: 02/25/2023] Open
Abstract
Pulmonary hypertension due to left heart disease (PH-LHD) is the most frequent manifestation of PH but lacks any approved treatment. Activin receptor type IIA-Fc fusion protein (ActRIIA-Fc) was found previously to be efficacious in experimental and human pulmonary arterial hypertension (PAH). Here we tested the hypothesis that ActRIIA-Fc improves pulmonary vascular remodeling and alleviates PH in models of PH-LHD, specifically in subtypes of heart failure with reduced ejection fraction (PH-HFrEF) and preserved ejection fraction (PH-HFpEF). Treatment with murine ActRIIA-Fc reduced cardiac remodeling and improved cardiac function in two mouse models of left heart disease without PH, confirming that this inhibitor of activin-class ligand signaling can exert cardioprotective effects in heart failure. In a mouse model of PH-HFrEF with prolonged pressure overload caused by transverse aortic constriction, ActRIIA-Fc treatment significantly reduced pulmonary vascular remodeling, pulmonary fibrosis, and pulmonary hypertension while exerting beneficial structural, functional, and histological effects on both the left and right heart. Additionally, in an obese ZSF1-SU5416 rat model of PH-HFpEF with metabolic dysregulation, therapeutic treatment with ActRIIA-Fc normalized SMAD3 overactivation in pulmonary vascular and perivascular cells, reversed pathologic pulmonary vascular and cardiac remodeling, improved pulmonary and cardiac fibrosis, alleviated PH, and produced marked functional improvements in both cardiac ventricles. Studies in vitro revealed that treatment with ActRIIA-Fc prevents an abnormal, glucose-induced, activin-mediated, migratory phenotype in human pulmonary artery smooth muscle cells, providing a mechanism by which ActRIIA-Fc could exert therapeutic effects in experimental PH-HFpEF with metabolic dysregulation. Our results demonstrate that ActRIIA-Fc broadly corrects cardiopulmonary structure and function in experimental PH-LHD, including models of PH-HFrEF and PH-HFpEF, leading to alleviation of PH under diverse pathophysiological conditions. These findings highlight the important pathogenic contributions of activin-class ligands in multiple forms of experimental PH and support ongoing clinical evaluation of human ActRIIA-Fc (sotatercept) in patients with PH-HFpEF.
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Affiliation(s)
- Sachindra R Joshi
- Discovery Group, Acceleron Pharma Inc., a subsidiary of Merck & Co., Inc., Rahway, NJ, United States
| | - Elif Karaca Atabay
- Discovery Group, Acceleron Pharma Inc., a subsidiary of Merck & Co., Inc., Rahway, NJ, United States
| | - Jun Liu
- Discovery Group, Acceleron Pharma Inc., a subsidiary of Merck & Co., Inc., Rahway, NJ, United States
| | - Yan Ding
- Discovery Group, Acceleron Pharma Inc., a subsidiary of Merck & Co., Inc., Rahway, NJ, United States
| | - Steven D Briscoe
- Discovery Group, Acceleron Pharma Inc., a subsidiary of Merck & Co., Inc., Rahway, NJ, United States
| | - Mark J Alexander
- Discovery Group, Acceleron Pharma Inc., a subsidiary of Merck & Co., Inc., Rahway, NJ, United States
| | - Patrick Andre
- Discovery Group, Acceleron Pharma Inc., a subsidiary of Merck & Co., Inc., Rahway, NJ, United States
| | - Ravindra Kumar
- Discovery Group, Acceleron Pharma Inc., a subsidiary of Merck & Co., Inc., Rahway, NJ, United States
| | - Gang Li
- Discovery Group, Acceleron Pharma Inc., a subsidiary of Merck & Co., Inc., Rahway, NJ, United States
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Albeladi FI, Mostafa MM, Zayed MA, Atta H. Association of Polymorphisms in Antioxidant Enzyme-Encoding Genes with Diabetic Nephropathy in a Group of Saudi Arabian Patients with Type II Diabetes Mellitus. Int J Gen Med 2022; 15:5919-5928. [PMID: 35799998 PMCID: PMC9255407 DOI: 10.2147/ijgm.s367673] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/13/2022] [Indexed: 01/15/2023] Open
Abstract
Introduction Purpose Patients and Methods Results Conclusion
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Affiliation(s)
- Fatma I Albeladi
- Department of Nephrology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mostafa M Mostafa
- Department of Clinical Biochemistry, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed A Zayed
- Department of Medical Physiology, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Physiology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
- Correspondence: Mohamed A Zayed, Department of Medical Physiology, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, 21589, Saudi Arabia, Tel +966562603213, Fax +9666400000, Email
| | - Hazem Atta
- Department of Clinical Biochemistry, Faculty of Medicine in Rabigh, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Cairo, Egypt
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8
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Alsharidah AS. Diabetes mellitus and diabetic nephropathy: a review of the literature on hemostatic changes in coagulation and thrombosis. Blood Res 2022; 57:101-105. [PMID: 35620906 PMCID: PMC9242838 DOI: 10.5045/br.2022.2021204] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/31/2022] [Accepted: 03/14/2022] [Indexed: 11/17/2022] Open
Abstract
Vascular complications lead to morbidity and mortality in patients with diabetes. Diabetic nephropathy (DN) is one of the main life-threatening problems for these patients, as it is the main cause of end-stage renal disease. This study aimed to measure the clinical effects of diabetes in patients with diabetes and in patients with diabetic nephropathy. Improved hypoglycemic control in patients with diabetes could impressively reduce platelet hyperreactivity, and oxidative stress alters the levels of many coagulation and thrombosis factors, resulting in an abnormal hemostasis and impaired levels of numerous serum markers. Most studies have revealed that coagulation factor levels are high in patients with diabetes and nephrodiabetes. Serum inflammatory factors, and coagulation and endothelial functions are good predictors of diabetic nephropathy. This literature review was conducted with access to scholarly databases and Google Scholar through Qassim University, and it analyzes studies from early 2010 until November 2020. Many studies have inferred that diabetes severely affects hemostasis and increases the risk of cardiovascular disease.
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Affiliation(s)
- Ashwag S Alsharidah
- Department of Physiology, College of Medicine, Qassim University, Buraidah, Saudi Arabia
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9
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Effect of berberine in comparison to metformin on the biophysical and biochemical parameters in diabetic albino Wistar rats. Int J Health Sci (Qassim) 2022. [DOI: 10.53730/ijhs.v6ns2.6256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Introduction: Diabetic endothelial dysfunction is accompanied by increased oxidative stress and upregulated proinflammatory and inflammatory mediators in the endothelial vasculature. Aim of this study is to investigate the effect of Berberine, a natural alkaloid, on the oxidative stress, inflammation and its anti-oxidant effect in streptozotocin diabetic rats and to compare the effectiveness of FF with that of Metformin (Met) Material & Methods: This experimental animal study was conducted at animal house. The sample size included 174 albino wistar rats divided into 3 Groups, one control groups (C) Diabetic and untreated and two test groups. T1 Diabetic and treated with metformin 75 mg/kgwt/day) and T2 (T – Diabetics treated with Berberine(Ber) 100 mg/kgwt/day), with 58 rats in each group (29 male & 29 female). All the rats were treated with streptozotocin intra peritoneally and the diabetic state was induced. T1 group was treated with metformin 75 mg/kg/wt/day. The T2 group of rats were treated with Berberine at a dose of 100 mg/kgwt/day. Blood sample was drawn from retro orbital plexus of animals and the biophysical and biochemical parameters were tested at an interval of 3, 6 and 12-months duration.
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10
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Tamura Y. The Role of Zinc Homeostasis in the Prevention of Diabetes Mellitus and Cardiovascular Diseases. J Atheroscler Thromb 2021; 28:1109-1122. [PMID: 34148917 PMCID: PMC8592709 DOI: 10.5551/jat.rv17057] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/25/2021] [Indexed: 11/30/2022] Open
Abstract
Zinc is an essential micronutrient for human health and is involved in various biological functions, such as growth, metabolism, and immune function. In recent years, research on intracellular zinc dynamics has progressed, and it has become clear that zinc transporters strictly control intracellular zinc localization, zinc regulates the functions of various proteins and signal transduction pathways as a second messenger similar to calcium ions, and intracellular zinc dyshomeostasis is associated with impaired insulin synthesis, secretion, sensitivity, lipid metabolism, and vascular function. Numerous animal and human studies have shown that zinc deficiency may be associated with the risk factors for diabetes and cardiovascular diseases (CVDs) and zinc administration might be beneficial for the prevention and treatment of these diseases. Therefore, an understanding of zinc biology may help the establishment of novel strategies for the prevention and treatment of diabetes and CVDs. This review will summarize the current knowledge on the role of zinc homeostasis in the pathogenesis of diabetes and atherosclerosis and will discuss the potential of zinc in the prevention of these diseases.
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Affiliation(s)
- Yukinori Tamura
- Division of Physiology and Biochemistry, Faculty of Nutrition, Kobe Gakuin University, Kobe, Japan
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11
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Shraim BA, Moursi MO, Benter IF, Habib AM, Akhtar S. The Role of Epidermal Growth Factor Receptor Family of Receptor Tyrosine Kinases in Mediating Diabetes-Induced Cardiovascular Complications. Front Pharmacol 2021; 12:701390. [PMID: 34408653 PMCID: PMC8365470 DOI: 10.3389/fphar.2021.701390] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 07/14/2021] [Indexed: 12/15/2022] Open
Abstract
Diabetes mellitus is a major debilitating disease whose global incidence is progressively increasing with currently over 463 million adult sufferers and this figure will likely reach over 700 million by the year 2045. It is the complications of diabetes such as cardiovascular, renal, neuronal and ocular dysfunction that lead to increased patient morbidity and mortality. Of these, cardiovascular complications that can result in stroke and cardiomyopathies are 2- to 5-fold more likely in diabetes but the underlying mechanisms involved in their development are not fully understood. Emerging research suggests that members of the Epidermal Growth Factor Receptor (EGFR/ErbB/HER) family of tyrosine kinases can have a dual role in that they are beneficially required for normal development and physiological functioning of the cardiovascular system (CVS) as well as in salvage pathways following acute cardiac ischemia/reperfusion injury but their chronic dysregulation may also be intricately involved in mediating diabetes-induced cardiovascular pathologies. Here we review the evidence for EGFR/ErbB/HER receptors in mediating these dual roles in the CVS and also discuss their potential interplay with the Renin-Angiotensin-Aldosterone System heptapeptide, Angiotensin-(1-7), as well the arachidonic acid metabolite, 20-HETE (20-hydroxy-5, 8, 11, 14-eicosatetraenoic acid). A greater understanding of the multi-faceted roles of EGFR/ErbB/HER family of tyrosine kinases and their interplay with other key modulators of cardiovascular function could facilitate the development of novel therapeutic strategies for treating diabetes-induced cardiovascular complications.
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Affiliation(s)
- Bara A Shraim
- College of Medicine, QU Health, Qatar University, Doha, Qatar.,Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
| | - Moaz O Moursi
- College of Medicine, QU Health, Qatar University, Doha, Qatar.,Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
| | - Ibrahim F Benter
- Faculty of Medicine, Eastern Mediterranean University, Famagusta, North Cyprus
| | - Abdella M Habib
- College of Medicine, QU Health, Qatar University, Doha, Qatar.,Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
| | - Saghir Akhtar
- College of Medicine, QU Health, Qatar University, Doha, Qatar.,Biomedical and Pharmaceutical Research Unit, QU Health, Qatar University, Doha, Qatar
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12
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Xing X, Guo S, Liu Y, Kuang J, Huang Z, Wang X, Lu Q. Saxagliptin protects against diabetic nephropathy by inhibiting caspase 3/PARP-1-dependent nephrocyte apoptosis. Exp Ther Med 2021; 22:990. [PMID: 34345272 PMCID: PMC8311252 DOI: 10.3892/etm.2021.10422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 06/08/2021] [Indexed: 11/16/2022] Open
Abstract
Saxagliptin (SAX) can protect against tissue damage caused by diabetic nephropathy. However, whether this compound can restore kidney function, and its specific mechanism of action remain unclear. The present study explored the therapeutic effects and mechanisms of SAX. Male Wistar rats (8 weeks old) were randomly divided into the following groups: A control group (n=10); a group with streptozocin-induced diabetes mellitus (DM) treated with saline (n=20); and a group with streptozocin-induced DM treated with SAX (n=20). Following 20 weeks of treatment, renal function and the extent of renal damage were assessed based on histological staining using hematoxylin and eosin, periodic acid-Schiff and Masson's trichrome staining. The experimental results indicated that Streptozocin induction of DM led to thicker basement membranes in mesangial cells and a more abundant extracellular matrix. These changes were ameliorated following treatment with SAX. The data demonstrated that renal tissue and renal cell apoptosis were ameliorated significantly following treatment with SAX. Furthermore, the expression levels of the apoptotic genes poly (ADP-ribose) polymerase-1 (PARP-1) and caspase 3 were significantly decreased following treatment with SAX. Therefore, SAX may reduce the extent of renal apoptosis and pathological outcomes in diabetic nephropathy by downregulating the expression of caspase 3 and PARP-1 in the death receptor pathway of apoptosis.
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Affiliation(s)
- Xiaowei Xing
- Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Shuang Guo
- Department of Gastroenterology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Yusheng Liu
- Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Jiangying Kuang
- Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Zhiwei Huang
- Department of Hematology, The Qilu Children's Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
| | - Xin Wang
- Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
| | - Qinghua Lu
- Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250033, P.R. China
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Bashkin A, Ghanim M, Abu-Farich B, Rayan M, Miari R, Srouji S, Rayan A, Falah M. Forty-One Plant Extracts Screened for Dual Antidiabetic and Antioxidant Functions: Evaluating the Types of Correlation between -Amylase Inhibition and Free Radical Scavenging. Molecules 2021; 26:molecules26020317. [PMID: 33435419 PMCID: PMC7827760 DOI: 10.3390/molecules26020317] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/25/2020] [Accepted: 12/31/2020] [Indexed: 12/05/2022] Open
Abstract
Dysregulation of glucose homeostasis followed by chronic hyperglycemia is a hallmark of diabetes mellitus (DM), a disease spreading as a worldwide pandemic for which there is no satisfactory dietary treatment or cure. The development of glucose-controlling drugs that can prevent complications of DM, such as hyperglycemia and oxidative stress, which contribute to the impairment of the key physiological processes in the body, is of grave importance. In pursuit of this goal, this study screened 41 plant extracts for their antidiabetic and antioxidant activities by employing assays to test for α-amylase inhibition and free radical scavenging activity (FRSA) and by measuring glucose uptake in L6-GLUT4myc cells. While extracts of Rhus coriaria, Punica granatum, Olea europaea, Pelargonium spp., Stevia rebaudiana, and Petroselinum crispum demonstrated significant α-amylase inhibition, the extracts of Rhus coriaria and Pelargonium spp. also demonstrated increased FRSA, and the extract of Rhus coriaria stimulated glucose uptake. These natural extracts, which are believed to have fewer side effects because they are prepared from edible plants, interfere with the process in the small intestine that breaks down dietary carbohydrates into monosaccharide and disaccharide derivatives, and thereby suppress increases in diet-induced blood glucose; hence, they may have clinical value for type 2 diabetes management. The Pelargonium spp. and Rhus coriaria extracts demonstrated the highest antidiabetic and antioxidant activities. Both plants may offer valuable medical benefits, especially because they can be taken as dietary supplements by patients with diabetes and can serve as sources of new, natural-based antidiabetic drug candidates. The enhancement of cellular glucose uptake stimulated by Rhus coriaria extract could lead to the development of clinical applications that regulate blood glucose levels from within the circulatory system. Isolating bioactive substances from these plant extracts and testing them in diabetic mice will significantly advance the development of natural drugs that have both antidiabetic and free radical-scavenging properties, likely with lesser side effects.
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Affiliation(s)
- Amir Bashkin
- Galilee Medical Center, Institute for Medical Research, Nahariya 2210001, Israel; (A.B.); (M.G.); (R.M.); (S.S.)
- Faculty of Medicine in the Galilee, Bar-Ilan University, Safed 1311502, Israel
| | - Manar Ghanim
- Galilee Medical Center, Institute for Medical Research, Nahariya 2210001, Israel; (A.B.); (M.G.); (R.M.); (S.S.)
- Faculty of Medicine in the Galilee, Bar-Ilan University, Safed 1311502, Israel
| | - Basheer Abu-Farich
- Faculty of Science, Al-Qasemi Academic College, Baka EL-Garbiah 30100, Israel; (B.A.-F.); (M.R.)
| | - Mahmoud Rayan
- Faculty of Science, Al-Qasemi Academic College, Baka EL-Garbiah 30100, Israel; (B.A.-F.); (M.R.)
| | - Reem Miari
- Galilee Medical Center, Institute for Medical Research, Nahariya 2210001, Israel; (A.B.); (M.G.); (R.M.); (S.S.)
- Faculty of Medicine in the Galilee, Bar-Ilan University, Safed 1311502, Israel
| | - Samer Srouji
- Galilee Medical Center, Institute for Medical Research, Nahariya 2210001, Israel; (A.B.); (M.G.); (R.M.); (S.S.)
- Faculty of Medicine in the Galilee, Bar-Ilan University, Safed 1311502, Israel
| | - Anwar Rayan
- Faculty of Science, Al-Qasemi Academic College, Baka EL-Garbiah 30100, Israel; (B.A.-F.); (M.R.)
- Correspondence: (A.R.); (M.F.)
| | - Mizied Falah
- Galilee Medical Center, Institute for Medical Research, Nahariya 2210001, Israel; (A.B.); (M.G.); (R.M.); (S.S.)
- Faculty of Medicine in the Galilee, Bar-Ilan University, Safed 1311502, Israel
- Correspondence: (A.R.); (M.F.)
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14
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Wang K, Dong Y, Liu J, Qian L, Wang T, Gao X, Wang K, Zhou L. Effects of REDOX in Regulating and Treatment of Metabolic and Inflammatory Cardiovascular Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:5860356. [PMID: 33282111 PMCID: PMC7685846 DOI: 10.1155/2020/5860356] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 09/05/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023]
Abstract
Reduction oxidation (REDOX) reaction is crucial in life activities, and its dynamic balance is regulated by ROS. Reactive oxygen species (ROS) is associated with a variety of metabolic diseases involving in multiple cellular signalling in pathologic and physiological signal transduction. ROS are the by-products of numerous enzymatic reactions in various cell compartments, including the cytoplasm, cell membrane, endoplasmic reticulum (ER), mitochondria, and peroxisome. ROS signalling is not only involved in normal physiological processes but also causes metabolic dysfunction and maladaptive responses to inflammatory signals, which depends on the cell type or tissue environment. Excess oxidants are able to alter the normal structure and function of DNA, lipids, and proteins, leading to mutations or oxidative damage. Therefore, excessive oxidative stress is usually regarded as the cause of various pathological conditions, such as cancer, neurodegeneration, cardiovascular diseases (CVDs), diabetes, and kidney diseases. Currently, it has been possible to detect diabetes and other cardiac diseases by detecting derivatives accompanied by oxidative stress in vivo as biomarkers, but there is no effective method to treat these diseases. In consequence, it is essential for us to seek new therapy targeting these diseases through understanding the role of ROS signalling in regulating metabolic activity, inflammatory activation, and cardiac diseases related to metabolic dysfunction. In this review, we summarize the current literature on REDOX and its role in the regulation of cardiac metabolism and inflammation, focusing on ROS, local REDOX signalling pathways, and other mechanisms.
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Affiliation(s)
- Kai Wang
- Institute of translational medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
| | - Yanhan Dong
- Institute of translational medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
| | - Jing Liu
- Institute of translational medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
| | - Lili Qian
- Institute of translational medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
| | - Tao Wang
- Institute of translational medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
| | - Xiangqian Gao
- Institute of translational medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
| | - Kun Wang
- Institute of translational medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
| | - Luyu Zhou
- Institute of translational medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao 266021, China
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15
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Stern C, Schreier B, Nolze A, Rabe S, Mildenberger S, Gekle M. Knockout of vascular smooth muscle EGF receptor in a mouse model prevents obesity-induced vascular dysfunction and renal damage in vivo. Diabetologia 2020; 63:2218-2234. [PMID: 32548701 PMCID: PMC7476975 DOI: 10.1007/s00125-020-05187-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 04/06/2020] [Indexed: 12/17/2022]
Abstract
AIMS/HYPOTHESIS Obesity causes type 2 diabetes leading to vascular dysfunction and finally renal end-organ damage. Vascular smooth muscle (VSM) EGF receptor (EGFR) modulates vascular wall homeostasis in part via serum response factor (SRF), a major regulator of VSM differentiation and a sensor for glucose. We investigated the role of VSM-EGFR during obesity-induced renovascular dysfunction, as well as EGFR-hyperglycaemia crosstalk. METHODS The role of VSM-EGFR during high-fat diet (HFD)-induced type 2 diabetes was investigated in a mouse model with inducible, VSM-specific EGFR-knockout (KO). Various structural and functional variables as well as transcriptome changes, in vivo and ex vivo, were assessed. The impact of hyperglycaemia on EGFR-induced signalling and SRF transcriptional activity and the underlying mechanisms were investigated at the cellular level. RESULTS We show that VSM-EGFR mediates obesity/type 2 diabetes-induced vascular dysfunction, remodelling and transcriptome dysregulation preceding renal damage and identify an EGFR-glucose synergism in terms of SRF activation, matrix dysregulation and mitochondrial function. EGFR deletion protects the animals from HFD-induced endothelial dysfunction, creatininaemia and albuminuria. Furthermore, we show that HFD leads to marked changes of the aortic transcriptome in wild-type but not in KO animals, indicative of EGFR-dependent SRF activation, matrix dysregulation and mitochondrial dysfunction, the latter confirmed at the cellular level. Studies at the cellular level revealed that high glucose potentiated EGFR/EGF receptor 2 (ErbB2)-induced stimulation of SRF activity, enhancing the graded signalling responses to EGF, via the EGFR/ErbB2-ROCK-actin-MRTF pathway and promoted mitochondrial dysfunction. CONCLUSIONS/INTERPRETATION VSM-EGFR contributes to HFD-induced vascular and subsequent renal alterations. We propose that a potentiated EGFR/ErbB2-ROCK-MRTF-SRF signalling axis and mitochondrial dysfunction underlie the role of EGFR. This advanced working hypothesis will be investigated in mechanistic depth in future studies. VSM-EGFR may be a therapeutic target in cases of type 2 diabetes-induced renovascular disease. DATA AVAILABILITY The datasets generated during and/or analysed during the current study are available in: (1) share_it, the data repository of the academic libraries of Saxony-Anhalt ( https://doi.org/10.25673/32049.2 ); and (2) in the gene expression omnibus database with the study identity GSE144838 ( https://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE144838 ). Graphical abstract.
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Affiliation(s)
- Christian Stern
- Julius Bernstein Institute of Physiology, Martin Luther University Halle-Wittenberg, Magdeburger Strasse 6, 06112, Halle, Germany
| | - Barbara Schreier
- Julius Bernstein Institute of Physiology, Martin Luther University Halle-Wittenberg, Magdeburger Strasse 6, 06112, Halle, Germany
| | - Alexander Nolze
- Julius Bernstein Institute of Physiology, Martin Luther University Halle-Wittenberg, Magdeburger Strasse 6, 06112, Halle, Germany
| | - Sindy Rabe
- Julius Bernstein Institute of Physiology, Martin Luther University Halle-Wittenberg, Magdeburger Strasse 6, 06112, Halle, Germany
| | - Sigrid Mildenberger
- Julius Bernstein Institute of Physiology, Martin Luther University Halle-Wittenberg, Magdeburger Strasse 6, 06112, Halle, Germany
| | - Michael Gekle
- Julius Bernstein Institute of Physiology, Martin Luther University Halle-Wittenberg, Magdeburger Strasse 6, 06112, Halle, Germany.
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16
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Citrus Flavonoids as Promising Phytochemicals Targeting Diabetes and Related Complications: A Systematic Review of In Vitro and In Vivo Studies. Nutrients 2020; 12:nu12102907. [PMID: 32977511 PMCID: PMC7598193 DOI: 10.3390/nu12102907] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/17/2020] [Accepted: 09/19/2020] [Indexed: 01/04/2023] Open
Abstract
The consumption of plant-based food is important for health promotion, especially concerning the prevention and management of chronic diseases. Flavonoids are the main bioactive compounds in citrus fruits, with multiple beneficial effects, especially antidiabetic effects. We systematically review the potential antidiabetic action and molecular mechanisms of citrus flavonoids based on in vitro and in vivo studies. A search of the PubMed, EMBASE, Scopus, and Web of Science Core Collection databases for articles published since 2010 was carried out using the keywords citrus, flavonoid, and diabetes. All articles identified were analyzed, and data were extracted using a standardized form. The search identified 38 articles, which reported that 19 citrus flavonoids, including 8-prenylnaringenin, cosmosiin, didymin, diosmin, hesperetin, hesperidin, isosiennsetin, naringenin, naringin, neohesperidin, nobiletin, poncirin, quercetin, rhoifolin, rutin, sineesytin, sudachitin, tangeretin, and xanthohumol, have antidiabetic potential. These flavonoids regulated biomarkers of glycemic control, lipid profiles, renal function, hepatic enzymes, and antioxidant enzymes, and modulated signaling pathways related to glucose uptake and insulin sensitivity that are involved in the pathogenesis of diabetes and its related complications. Citrus flavonoids, therefore, are promising antidiabetic candidates, while their antidiabetic effects remain to be verified in forthcoming human studies.
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17
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Abstract
Receptor for advanced glycation end products (RAGE) is an immunoglobulin-like receptor present on cell surface. RAGE binds to an array of structurally diverse ligands, acts as a pattern recognition receptor (PRR) and is expressed on cells of different origin performing different functions. RAGE ligation leads to the initiation of a cascade of signaling events and is implicated in diseases, such as inflammation, cancer, diabetes, vascular dysfunctions, retinopathy, and neurodegenerative diseases. Because of the significant involvement of RAGE in the progression of numerous diseases, RAGE signaling has been targeted through use of inhibitors and anti-RAGE antibodies as a treatment strategy and therapy. Here in this review, we have summarized the physical and physiological aspects of RAGE biology in mammalian system and the importance of targeting this molecule in the treatment of various RAGE mediated pathologies. Highlights Receptor for advanced glycation end products (RAGE) is a member of immunoglobulin superfamily of receptors and involved in many pathophysiological conditions. RAGE ligation with its ligands leads to initiation of distinct signaling cascades and activation of numerous transcription factors. Targeting RAGE signaling through inhibitors and anti-RAGE antibodies can be promising treatment strategy.
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Affiliation(s)
- Nitish Jangde
- Laboratory of Vascular Immunology, Institute of Life Sciences, Bhubaneswar, India.,Manipal Academy of Higher Education, Manipal, India
| | - Rashmi Ray
- Laboratory of Vascular Immunology, Institute of Life Sciences, Bhubaneswar, India
| | - Vivek Rai
- Laboratory of Vascular Immunology, Institute of Life Sciences, Bhubaneswar, India
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18
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Acierno C, Caturano A, Pafundi PC, Nevola R, Adinolfi LE, Sasso FC. Nonalcoholic fatty liver disease and type 2 diabetes: pathophysiological mechanisms shared between the two faces of the same coin. EXPLORATION OF MEDICINE 2020. [DOI: 10.37349/emed.2020.00019] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The pathophysiological mechanisms underlying the close relationship between nonalcoholic fatty liver disease (NAFLD) and type 2 diabetes mellitus (T2DM) are multiple, complex and only partially known. The purpose of this paper was to review the current knowledge of these mechanisms in a unified manner. Subjects with NAFLD and T2DM have established insulin resistance (IR), which exacerbates the two comorbidities. IR worsens NAFLD by increasing the accumulation of free fatty acids (FFAs) in the liver. This occurs due to an increase in the influx of FFAs from peripheral adipose tissue by the activation of hormone-sensitive lipase. In addition, there is de novo increased lipogenesis, a transcription factor, the sterols regulatory element-binding transcription factor 1c (SREBP-1c), which activates the expression of several genes strongly promotes lipogenesis by the liver and facilitate storage of triglycerides. Lipids accumulation in the liver induces a chronic stress in the endoplasmic reticulum of the hepatocytes. Genome-wide association studies have identified genetic variants associated with NAFLD severity, but unrelated to IR. In particular, the alteration of patatin-like phospholipase domain-containing protein 3 contributes to the susceptibility to NAFLD. Furthermore, the lipotoxicity of ceramides and diacylglycerol, well known in T2DM, triggers a chronic inflammatory process favoring the progression from hepatic steatosis to steatohepatitis. Reactive oxygen species produced by mitochondrial dysfunction trigger both liver inflammation and beta-cells damage, promoting the progression of both NAFLD and T2DM. The close association between NAFLD and T2DM is bidirectional, as T2DM may trigger both NAFLD onset and its progression, but NAFLD itself may contribute to the development of IR and T2DM. Future studies on the mechanisms will have to deepen the knowledge of the interaction between the two pathologies and should allow the identification of new therapeutic targets for the treatment of NAFLD, currently substantially absent.
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Affiliation(s)
- Carlo Acierno
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, I-80138 Naples, Italy
| | - Alfredo Caturano
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, I-80138 Naples, Italy
| | - Pia Clara Pafundi
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, I-80138 Naples, Italy
| | - Riccardo Nevola
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, I-80138 Naples, Italy
| | - Luigi Elio Adinolfi
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, I-80138 Naples, Italy
| | - Ferdinando Carlo Sasso
- Department of Advanced Medical and Surgical Sciences, University of Campania “Luigi Vanvitelli”, I-80138 Naples, Ital
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Lan D, Jiang HY, Su X, Zhao Y, Du S, Li Y, Bi R, Zhang DF, Yang Q. Transcriptome-wide Association Study Identifies Genetically Dysregulated Genes in Diabetic Neuropathy. Comb Chem High Throughput Screen 2020; 24:319-325. [PMID: 32772906 DOI: 10.2174/1386207323666200808173745] [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: 03/10/2020] [Revised: 06/03/2020] [Accepted: 07/14/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Complications are the main cause of the disease burden of diabetes. Genes determining the development and progression of diabetic complications remain to be identified. Diabetic neuropathy is the most common and debilitating complication and mainly affects the nerves of legs and feet. In this study, we attempted to identify diabetic neuropathy-specific genes from reliable large-scale genome-wide association studies (GWASs) for diabetes perse. METHODS Taking advantage of publicly available data, we initially converted the GWAS signals to transcriptomic profiles in the tibial nerve using the functional summary-based imputation (FUSION) algorithm. The FUSION-derived genes were then checked to determine whether they were differentially expressed in the sciatic nerve of mouse models of diabetic neuropathy. The dysregulated genes identified in the sciatic nerve were explored in the blood of patients with diabetes. RESULTS We found that eleven out of 452 FUSION-derived genes were regulated by diabetes GWAS loci and were altered in the sciatic nerve of mouse models with early-stage neuropathy. Among the eleven genes, significant (P-value<0.05) expression alterations of HSD17B4, DHX32, MERTK, and SFXN4 could be detected in the blood of human patients. CONCLUSIONS Our analyses identified genes with an effect in the sciatic nerve and provided the possibility of noninvasive early detection of diabetic neuropathy.
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Affiliation(s)
- Danfeng Lan
- Department of Geriatrics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Hong-Yan Jiang
- Department of Psychiatry, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiaoyang Su
- Department of Geriatrics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yan Zhao
- Department of Geriatrics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Sicheng Du
- Department of Geriatrics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ying Li
- Department of Geriatrics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Rui Bi
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming650223, China
| | - Deng-Feng Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming650223, China
| | - Qiuping Yang
- Department of Geriatrics, The First Affiliated Hospital of Kunming Medical University, Kunming, China
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20
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Wang P, Yang Y, Wang D, Yang Q, Wan J, Liu S, Zhou P, Yang Y. Cinnamaldehyde Ameliorates Vascular Dysfunction in Diabetic Mice by Activating Nrf2. Am J Hypertens 2020; 33:610-619. [PMID: 32242611 DOI: 10.1093/ajh/hpaa024] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 11/05/2019] [Accepted: 04/01/2020] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Oxidative stress is known to be associated with the development of diabetes. Cinnamaldehyde (CA) is a spice compound in cinnamon that enhances the antioxidant defense against reactive oxygen species (ROS) by activating nuclear factor erythroid-related factor 2 (Nrf2), which has been shown to have a cardioprotection effect. However, the relationship between CA and Nrf2 in diabetic vascular complications remains unclear. METHODS Leptin receptor-deficient (db/db) mice were fed normal chow or diet containing 0.02% CA for 12 weeks. The vascular tone, blood pressure, superoxide level, nitric oxide (NO) production, renal morphology, and function were measured in each group. RESULTS CA remarkably inhibited ROS generation, preserved NO production, increased phosphorylated endothelial nitric oxide synthase (p-eNOS), attenuated the upregulation of nitrotyrosine, P22 and P47 in aortas of db/db mice, and apparently ameliorated the elevation of type IV collagen, TGF-β1, P22, and P47 in kidney of db/db mice. Feeding with CA improved endothelium-dependent relaxation of aortas and mesenteric arteries, and alleviated the remodeling of mesenteric arteries in db/db mice. Additionally, dietary CA ameliorated glomerular fibrosis and renal dysfunction in diabetic mice. Nrf2 and its targeted genes heme oxygenase-1 (HO-1) and quinone oxidoreductase-1 (NQO-1) were slightly increased in db/db mice and further upregulated by CA. However, these protective effects of CA were reversed in Nrf2 downregulation mice. CONCLUSIONS A prolonged diet of CA protects against diabetic vascular dysfunction by inhibiting oxidative stress through activating of Nrf2 signaling pathway in db/db mice.
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Affiliation(s)
- Peijian Wang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, PR China
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
- Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
| | - Yi Yang
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
- Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
| | - Dan Wang
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
- Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
| | - Qiyuan Yang
- West China College of Stomatology, Sichuan University, Chengdu, PR China
| | - Jindong Wan
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
- Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
| | - Sen Liu
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
- Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
| | - Peng Zhou
- Department of Cardiology, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
- Key Laboratory of Aging and Vascular Homeostasis of Sichuan Higher Education Institutes, The First Affiliated Hospital, Chengdu Medical College, Chengdu, PR China
| | - Yongjian Yang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, PR China
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21
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Chen Y, Chen J, Jiang M, Fu Y, Zhu Y, Jiao N, Liu L, Du Q, Wu H, Xu H, Sun J. Loganin and catalpol exert cooperative ameliorating effects on podocyte apoptosis upon diabetic nephropathy by targeting AGEs-RAGE signaling. Life Sci 2020; 252:117653. [PMID: 32277978 DOI: 10.1016/j.lfs.2020.117653] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/07/2020] [Accepted: 04/07/2020] [Indexed: 01/19/2023]
Abstract
BACKGROUND/AIMS Rehmanniae Radix (RR) and Cornus officinalis (CO) are a typical herbal pair used to treat diabetic nephropathy (DN) in clinical practice. DN can be effectively treated by catalpol (Cat) and loganin (Log), the main active components of RR and CO respectively, through combating apoptosis, oxidative stress and inflammation. Herein, a spontaneous DN and podocyte injury model induced by advanced glycation end products (AGEs), i.e. KK-Ay mice, was used to explore the cooperative effects of Log and Cat on DN and the mechanism targeting the AGEs-RAGE (receptor for AGE) pathway. METHODS AND KEY FINDINGS Log and Cat alone or in combination mitigated diabetic symptoms, decreased the level of fasting blood glucose, and increased that of serum insulin. The two drugs alone or in combination protected renal function from damage, prevented extracellular matrix hyperplasia and glycogen deposition, as well as alleviated the loss of podocytes detected by histological assay and immunohistochemistry. Flow cytometry revealed that Log and Cat alone or in combination relieved the apoptosis of AGEs-induced podocytes in vitro. Silencing RAGE by RNA interference played a protective role in podocyte apoptosis, whereas overexpression of it worked oppositely. Western blot exhibited that Log and Cat alone or in combination inhibited the activation of RAGE/p38 MAPK/p65 NF-κB and RAGE/Nox4/p65 NF-κB pathways in podocytes. The inhibitory effects of drug combination were more evident than those of individual treatments. SIGNIFICANCE Log and Cat cooperatively resisted the apoptosis of podocytes upon DN by targeting AGEs-RAGE and its downstream pathways p38 MAPK and Nox4.
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Affiliation(s)
- Yuping Chen
- Department of Basic Medical Science, Jiangsu Vocational College of Medicine, Yancheng, Jiangsu Province, China; College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China; Chemistry and Life Science College, Nanjing University Jinling College, Nanjing, Jiangsu Province, China
| | - Jing Chen
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China; Hanlin College, Nanjing University of Chinese Medicine, Taizhou, Jiangsu Province, China
| | - Ming Jiang
- Department of Basic Medical Science, Jiangsu Vocational College of Medicine, Yancheng, Jiangsu Province, China
| | - Yingxue Fu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Yihui Zhu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Ni Jiao
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Liping Liu
- Department of Basic Medical Science, Jiangsu Vocational College of Medicine, Yancheng, Jiangsu Province, China
| | - Qiu Du
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China
| | - Hongyan Wu
- Hanlin College, Nanjing University of Chinese Medicine, Taizhou, Jiangsu Province, China
| | - Huiqin Xu
- College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, Jiangsu Province, China.
| | - Jihu Sun
- Department of Basic Medical Science, Jiangsu Vocational College of Medicine, Yancheng, Jiangsu Province, China.
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Zhang P, Li T, Wu X, Nice EC, Huang C, Zhang Y. Oxidative stress and diabetes: antioxidative strategies. Front Med 2020; 14:583-600. [PMID: 32248333 DOI: 10.1007/s11684-019-0729-1] [Citation(s) in RCA: 209] [Impact Index Per Article: 52.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Accepted: 10/29/2019] [Indexed: 12/20/2022]
Abstract
Diabetes mellitus is one of the major public health problems worldwide. Considerable recent evidence suggests that the cellular reduction-oxidation (redox) imbalance leads to oxidative stress and subsequent occurrence and development of diabetes and related complications by regulating certain signaling pathways involved in β-cell dysfunction and insulin resistance. Reactive oxide species (ROS) can also directly oxidize certain proteins (defined as redox modification) involved in the diabetes process. There are a number of potential problems in the clinical application of antioxidant therapies including poor solubility, storage instability and nonselectivity of antioxidants. Novel antioxidant delivery systems may overcome pharmacokinetic and stability problem and improve the selectivity of scavenging ROS. We have therefore focused on the role of oxidative stress and antioxidative therapies in the pathogenesis of diabetes mellitus. Precise therapeutic interventions against ROS and downstream targets are now possible and provide important new insights into the treatment of diabetes.
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Affiliation(s)
- Pengju Zhang
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Tao Li
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Xingyun Wu
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China
| | - Edouard C Nice
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Canhua Huang
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China.
| | - Yuanyuan Zhang
- Department of Pharmacology, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China.
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23
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Bøgh Andersen I, Brasen CL, Nasimi H, Stougård M, Bliddal M, Green A, Schmedes A, Brandslund I, Madsen JS. Serum vitamin K 1 associated to microangiopathy and/or macroangiopathy in individuals with and without diabetes. BMJ Open Diabetes Res Care 2020; 8:8/1/e000961. [PMID: 32213490 PMCID: PMC7170411 DOI: 10.1136/bmjdrc-2019-000961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 02/02/2020] [Accepted: 02/09/2020] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE Vitamin K has proposed beneficial effects on cardiovascular health. We investigated whether serum vitamin K1 was associated with prevalence of microangiopathy and/or macroangiopathy. RESEARCH DESIGN AND METHODS Serum vitamin K was quantified in 3239 individuals with and 3808 without diabetes enrolled in Vejle Diabetes Biobank (2007-2010). Each individual was assessed for microangiography and macroangiopathy at enrollment based on registered diagnoses in the Danish National Patient Registry according to the International Classification of Disease 8 (1977-1993) and 10 (since 1994). Using multinomial logistic regression, relative risk ratios (RRRs) were calculated within each group of individuals with and without diabetes. RRRs were estimated for microangiopathic/macroangiopathic status compared with individuals without complications as a function of 1 nmol/L increments in K1. Adjustment for potential confounders was also performed. RESULTS Vitamin K1 (median) varied 0.86-0.95 nmol/L depending on diabetes, microangiopathic and macroangiopathic status. In individuals with diabetes, the crude RRR for only having microangiopathy was 1.05 (95% CI 0.98 to 1.12) and was found significant when adjusting 1.10 (95% CI 1.01 to 1.19). RRR for having only macroangiopathy was 0.89 (95% CI 0.77 to 1.03) and was again significant when adjusting 0.79 (95% CI 0.66 to 0.96). In individuals without diabetes, adjustments again led to similar estimates that was not significant. The adjusted RRR for having only macroangiopathy was 1.08 (95% CI 0.98 to 1.19). CONCLUSIONS Serum vitamin K1 levels were associated with microangiopathic and macroangiopathic status in individuals with diabetes, but considered of no clinical relevance. The clinical value of other candidate markers for vitamin K status needs to be evaluated in future studies.
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Affiliation(s)
- Ida Bøgh Andersen
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Claus Lohman Brasen
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Hashmatullah Nasimi
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Institute for Biochemistry and Molecular Biology, University of Southern Denmark, Odense, Denmark
| | - Maria Stougård
- OPEN-Open Patient data Explorative Network, Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Mette Bliddal
- OPEN-Open Patient data Explorative Network, Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Anders Green
- OPEN-Open Patient data Explorative Network, Department of Clinical Research, University of Southern Denmark and Odense University Hospital, Odense, Denmark
| | - Anne Schmedes
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
| | - Ivan Brandslund
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - Jonna Skov Madsen
- Department of Clinical Biochemistry and Immunology, Lillebælt Hospital, Vejle, Denmark
- Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
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Peng X, Wang X, Fan M, Zhao J, Lin L, Liu J. Plasma levels of von Willebrand factor in type 2 diabetes patients with and without cardiovascular diseases: A meta-analysis. Diabetes Metab Res Rev 2020; 36:e3193. [PMID: 31145835 DOI: 10.1002/dmrr.3193] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 05/17/2019] [Accepted: 05/24/2019] [Indexed: 01/18/2023]
Abstract
Chronic vascular complications are the major causes of death and disability of type 2 diabetes mellitus (T2DM) patients. von Willebrand factor (vWF) is involved in pathogenesis of cardiovascular diseases (CVD). Previous studies showed elevated plasma levels of vWF in T2DM patients with CVD, but the association has not been validated. The aim of this meta-analysis was to compare plasma levels of vWF in T2DM patients with and without CVD. We performed a meta-analysis based on published case-control studies of vWF in T2DM patients with and without CVD indexed in PubMed and other databases updated to April 2018. After independently assessing methodological quality and extracting data, 9 eligible studies were obtained including 576 cases and 632 controls. The standard mean difference (SMD) and 95% confidence intervals (95% CI) were calculated using random-effects model. Meta-analysis showed that plasma level of vWF was significantly higher in T2DM patients with CVD than T2DM patients without CVD (SMD = 0.61; 95% CI, 0.32-0.90; P < .00001). Subgroup and sensitivity analyses confirmed the robustness of the results. Plasma levels of vWF are significantly elevated in patients with T2DM complicated by CVD. This study helps further characterize the prognostic value of vWF for cardiovascular complications in T2DM patients.
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Affiliation(s)
- Xun Peng
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, the First Hospital Affiliated with Shandong First Medical University, Jinan, China
- Graduate School, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Xia Wang
- School of Medicine, Shandong University, Jinan, China
| | - Mengge Fan
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, the First Hospital Affiliated with Shandong First Medical University, Jinan, China
- Graduate School, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Junyu Zhao
- Department of Endocrinology, Shandong Provincial Qianfoshan Hospital, the First Hospital Affiliated with Shandong First Medical University, Jinan, China
| | - Liao Lin
- Department of Endocrinology, Shandong Provincial Qianfoshan Hospital, the First Hospital Affiliated with Shandong First Medical University, Jinan, China
| | - Ju Liu
- Laboratory of Microvascular Medicine, Medical Research Center, Shandong Provincial Qianfoshan Hospital, the First Hospital Affiliated with Shandong First Medical University, Jinan, China
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25
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Specialized pro-resolving mediators in diabetes: novel therapeutic strategies. Clin Sci (Lond) 2019; 133:2121-2141. [DOI: 10.1042/cs20190067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 10/07/2019] [Accepted: 10/08/2019] [Indexed: 02/07/2023]
Abstract
AbstractDiabetes mellitus (DM) is an important metabolic disorder characterized by persistent hyperglycemia resulting from inadequate production and secretion of insulin, impaired insulin action, or a combination of both. Genetic disorders and insulin receptor disorders, environmental factors, lifestyle choices and toxins are key factors that contribute to DM. While it is often referred to as a metabolic disorder, modern lifestyle choices and nutrient excess induce a state of systemic chronic inflammation that results in the increased production and secretion of inflammatory cytokines that contribute to DM. It is chronic hyperglycemia and the low-grade chronic-inflammation that underlies the development of microvascular and macrovascular complications leading to damage in a number of tissues and organs, including eyes, vasculature, heart, nerves, and kidneys. Improvements in the management of risk factors have been beneficial, including focus on intensified glycemic control, but most current approaches only slow disease progression. Even with recent studies employing SGLT2 inhibitors demonstrating protection against cardiovascular and kidney diseases, kidney function continues to decline in people with established diabetic kidney disease (DKD). Despite the many advances and a greatly improved understanding of the pathobiology of diabetes and its complications, there remains a major unmet need for more effective therapeutics to prevent and reverse the chronic complications of diabetes. More recently, there has been growing interest in the use of specialised pro-resolving mediators (SPMs) as an exciting therapeutic strategy to target diabetes and the chronic complications of diabetes.
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26
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Verta R, Grange C, Gurrieri M, Borga S, Nardini P, Argenziano M, Ghè C, Cavalli R, Benetti E, Miglio G, Bussolati B, Pini A, Rosa AC. Effect of Bilastine on Diabetic Nephropathy in DBA2/J Mice. Int J Mol Sci 2019; 20:ijms20102554. [PMID: 31137660 PMCID: PMC6566437 DOI: 10.3390/ijms20102554] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/19/2019] [Accepted: 05/21/2019] [Indexed: 01/08/2023] Open
Abstract
Diabetic nephropathy is an unmet therapeutic need, and the search for new therapeutic strategies is warranted. Previous data point to histamine H1 receptor as a possible target for glomerular dysfunction associated with long term hyperglycaemia. Therefore, this study investigated the effects of the H1 receptor antagonist bilastine on renal morphology and function in a murine model of streptozotocin-induced diabetes. Diabetes was induced in DBA2/J male mice and, from diabetes onset (glycaemia ≥200 mg/dL), mice received bilastine (1–30 mg/kg/day) by oral gavage for 14 consecutive weeks. At the end of the experimental protocol, diabetic mice showed polyuria (+195.5%), increase in Albumin-to-Creatine Ratio (ACR, +284.7%), and a significant drop in creatinine clearance (p < 0.05). Bilastine prevented ACR increase and restored creatinine clearance in a dose-dependent manner, suggesting a positive effect on glomerular filtration. The ultrastructural analysis showed a preserved junctional integrity. Preservation of the basal nephrin, P-cadherin, and synaptopodin expression could explain this effect. In conclusion, the H1 receptor could contribute to the glomerular damage occurring in diabetic nephropathy. Bilastine preserved the glomerular junctional integrity, leading to the hypothesis of anti-H1 antihistamines as a possible add-on therapy for diabetic nephropathy.
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Affiliation(s)
- Roberta Verta
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy.
| | - Cristina Grange
- Department of Scienze Mediche, University of Turin, C.So Dogliotti 14, 10126 Turin, Italy.
| | - Maura Gurrieri
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy.
| | - Sara Borga
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy.
| | - Patrizia Nardini
- Department of Clinical and Experimental Medicine, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy.
| | - Monica Argenziano
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy.
| | - Corrado Ghè
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy.
| | - Roberta Cavalli
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy.
| | - Elisa Benetti
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy.
| | - Gianluca Miglio
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy.
| | - Benedetta Bussolati
- Department of Biotechnology and Health Sciences, Molecular Biotechnology Center University of Turin, Via Nizza 52, 10125 Turin, Italy.
| | - Alessandro Pini
- Department of Clinical and Experimental Medicine, University of Florence, Viale Pieraccini 6, 50139 Florence, Italy.
| | - Arianna Carolina Rosa
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy.
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Teodoro JS, Nunes S, Rolo AP, Reis F, Palmeira CM. Therapeutic Options Targeting Oxidative Stress, Mitochondrial Dysfunction and Inflammation to Hinder the Progression of Vascular Complications of Diabetes. Front Physiol 2019; 9:1857. [PMID: 30705633 PMCID: PMC6344610 DOI: 10.3389/fphys.2018.01857] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 12/11/2018] [Indexed: 12/29/2022] Open
Abstract
Type 2 diabetes mellitus is a leading cause of morbidity and mortality worldwide, given its serious associated complications. Despite constant efforts and intensive research, an effective, ubiquitous treatment still eludes the scientific community. As such, the identification of novel avenues of research is key to the potential discovery of this evasive "silver bullet." We focus on this review on the matter of diabetic injury to endothelial tissue and some of the pivotal underlying mechanisms, including hyperglycemia and hyperlipidemia evoked oxidative stress and inflammation. In this sense, we revisited the most promising therapeutic interventions (both non-pharmacological and antidiabetic drugs) targeting oxidative stress and inflammation to hinder progression of vascular complications of diabetes. This review article gives particular attention to the relevance of mitochondrial function, an often ignored and understudied organelle in the vascular endothelium. We highlight the importance of mitochondrial function and number homeostasis in diabetic conditions and discuss the work conducted to address the aforementioned issue by the use of various therapeutic strategies. We explore here the functional, biochemical and bioenergetic alterations provoked by hyperglycemia in the endothelium, from elevated oxidative stress to inflammation and cell death, as well as loss of tissue function. Furthermore, we synthetize the literature regarding the current and promising approaches into dealing with these alterations. We discuss how known agents and therapeutic behaviors (as, for example, metformin, dietary restriction or antioxidants) can restore normality to mitochondrial and endothelial function, preserving the tissue's function and averting the aforementioned complications.
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Affiliation(s)
- João S Teodoro
- Center for Neurosciences and Cell Biology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Sara Nunes
- Laboratory of Pharmacology and Experimental Therapeutics, Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research, University of Coimbra, Coimbra, Portugal
| | - Anabela P Rolo
- Center for Neurosciences and Cell Biology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Flávio Reis
- Laboratory of Pharmacology and Experimental Therapeutics, Faculty of Medicine, Coimbra Institute for Clinical and Biomedical Research, University of Coimbra, Coimbra, Portugal
| | - Carlos M Palmeira
- Center for Neurosciences and Cell Biology, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
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Che Q, Yang Y, Cheng G, Jia J, Fan F, Li J, Huo Y, Chen D, Zhang Y. Decreased GFR and its joint association with type 2 diabetes and hypertension with prevalence and severity of carotid plaque in a community population in China. Diabetes Metab Syndr Obes 2019; 12:1263-1273. [PMID: 31440071 PMCID: PMC6666373 DOI: 10.2147/dmso.s203545] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 05/29/2019] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND Type 2 diabetes (T2DM), hypertension and kidney dysfunction are known risk factors for cardiovascular disease, but their combined effect on carotid plaque remains uncertain. This study aims to assess the associations between T2DM, hypertension, kidney dysfunction and carotid plaque, and further explore the combined effect of three diseases. PATIENTS AND METHODS We conducted a cross-sectional analysis among 3,815 community-dwelling adults in a Chinese atherosclerosis cohort. Estimated glomerular filtration rate (eGFR), hypertension and T2DM were evaluated as risk factors for carotid plaque. The presence, number and total area of carotid plaques were also assessed. Using logistic model, mutinomial logistic model and generalized linear regression model, the relationship between risk factors and carotid plaque was examined. RESULTS T2DM, hypertension, decreased GFR, and, inversely, eGFR, were independently associated with the presence, number and total area of carotid plaque. Stratified analysis by T2DM and hypertension showed T2DM attenuated the association between eGFR change and carotid plaque. There was a cumulative relationship between three risk factors and carotid plaque burden. The OR for the number of plaques was 1.0 (reference), 1.55 to 2.03, 1.94 to 3.14, and 3.69 (all P<0.05), respectively, for individuals with none, one, two, and three risk factors. Likewise, combining three risk factors was associated with greater increase in total plaque area (β, 20.63; 95% CI, 14.04-27.22). CONCLUSION The coexistence of decreased GFR, diabetes and hypertension is associated with increased risk of carotid plaque, and these comorbidities may contribute additively to the development of plaque.
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Affiliation(s)
- Qianzi Che
- Department of Epidemiology & Biostatistics, Peking University Health Science Center, Beijing, People’s Republic of China
| | - Ying Yang
- Department of Cardiology, Peking University First Hospital, Beijing, People’s Republic of China
| | - Guanliang Cheng
- Department of Cardiology, Peking University First Hospital, Beijing, People’s Republic of China
| | - Jia Jia
- Department of Cardiology, Peking University First Hospital, Beijing, People’s Republic of China
| | - Fangfang Fan
- Department of Cardiology, Peking University First Hospital, Beijing, People’s Republic of China
| | - Jianping Li
- Department of Cardiology, Peking University First Hospital, Beijing, People’s Republic of China
| | - Yong Huo
- Department of Cardiology, Peking University First Hospital, Beijing, People’s Republic of China
| | - Dafang Chen
- Department of Epidemiology & Biostatistics, Peking University Health Science Center, Beijing, People’s Republic of China
- Correspondence: Dafang ChenDepartment of Epidemiology and Biostatistics, Peking University Health Science Center, No. 38 Xueyuan Road, Haidian District, Beijing100191, People’s Republic of ChinaTel +86 108 280 2644Fax +86 108 280 2644Email
| | - Yan Zhang
- Department of Cardiology, Peking University First Hospital, Beijing, People’s Republic of China
- Yan ZhangDepartment of Cardiology, Peking University First Hospital, 8 Xishiku Street, Xicheng District,Beijing, People’s Republic of ChinaTel +86 010-83575728 Email
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Huang X, Tong Y, Qi CX, Xu YT, Dan HD, Shen Y. Disrupted topological organization of human brain connectome in diabetic retinopathy patients. Neuropsychiatr Dis Treat 2019; 15:2487-2502. [PMID: 31695385 PMCID: PMC6717727 DOI: 10.2147/ndt.s214325] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 08/03/2019] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE There is increasing neuroimaging evidence that type 2 diabetes patients with retinal microvascular complications show abnormal brain functional and structural architecture and are at an increased risk of cognitive decline and dementia. However, changes in the topological properties of the functional brain connectome in diabetic retinopathy (DR) patients remain unknown. The aim of this study was to explore the topological organization of the brain connectome in DR patients using graph theory approaches. METHODS Thirty-five DR patients (18 males and 17 females) and 38 healthy controls (HCs) (18 males and 20 females), matched for age, sex, and education, underwent resting-state magnetic resonance imaging scans. Graph theory analysis was performed to investigate the topological properties of brain functional connectome at both global and nodal levels. RESULTS Both DR and HC groups showed high-efficiency small-world network in their brain functional networks. Notably, the DR group showed reduction in the clustering coefficient (P=0.0572) and local efficiency (P=0.0151). Furthermore, the DR group showed reduced nodal centralities in the default-mode network (DMN) and increased nodal centralities in the visual network (VN) (P<0.01, Bonferroni-corrected). The DR group also showed abnormal functional connections among the VN, DMN, salience network (SN), and sensorimotor network (SMN). Altered network metrics and nodal centralities were significantly correlated with visual acuity and fasting blood glucose level in DR patients. CONCLUSION DR patients showed abnormal topological organization of the human brain connectome. Specifically, the DR group showed reduction in the clustering coefficient and local efficiency, relative to HC group. Abnormal nodal centralities and functional disconnections were mainly located in the DMN, VN, SN, and SMN in DR patients. Furthermore, the disrupted topological attributes showed correlations with clinical variables. These findings offer important insight into the neural mechanism of visual loss and cognitive deficits in DR patients.
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Affiliation(s)
- Xin Huang
- Eye Center, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
| | - Yan Tong
- Eye Center, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
| | - Chen-Xing Qi
- Eye Center, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
| | - Yang-Tao Xu
- Eye Center, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
| | - Han-Dong Dan
- Eye Center, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
| | - Yin Shen
- Eye Center, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, People's Republic of China
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30
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Sartoretto SM, Santos FF, Costa BP, Ceravolo GS, Santos-Eichler R, Carvalho MHC, Fortes ZB, Akamine EH. Involvement of inducible nitric oxide synthase and estrogen receptor ESR2 (ERβ) in the vascular dysfunction in female type 1 diabetic rats. Life Sci 2018; 216:279-286. [PMID: 30447304 DOI: 10.1016/j.lfs.2018.11.030] [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] [Received: 08/16/2018] [Revised: 10/31/2018] [Accepted: 11/13/2018] [Indexed: 11/25/2022]
Abstract
AIMS Inflammation is involved in diabetes-related vascular dysfunction. Estrogen receptor ESR2/ERβ induces the expression of inducible nitric oxide (NO) synthase (iNOS) and inflammation. The present study investigated the effect of alloxan-induced type 1 diabetes on the iNOS and ESR2 expression and the effect of the chronic iNOS inhibition on the vascular smooth muscle dysfunction in diabetic female rats. In addition, we evaluated the involvement of ESR2 in iNOS expression. MAIN METHODS Alloxan-induced diabetic female rats were treated or not with iNOS inhibitor (L-NIL). iNOS and ESR2 immunostaining, S-nitrosylated proteins and IL-1β protein expression in aorta and plasmatic NO levels were analyzed. Contractile response to noradrenaline was analyzed in endothelium-denuded aorta. iNOS mRNA expression was analyzed in isolated aortic smooth muscle cells (ASMCs) of female rats, incubated with 22 mM glucose and an ESR2 antagonist. KEY FINDINGS Aortic iNOS and ESR2 immunostaining, S-nitrosylated proteins, IL-1β protein expression and plasmatic NO levels were all increased, whereas noradrenaline-induced contraction was reduced in aorta of diabetic female rats. With the exception of iNOS and ESR2 immunostaining, all these parameters were corrected by L-NIL treatment. High glucose increased iNOS mRNA expression in ASMCs, which was reduced by an ESR2 antagonist. SIGNIFICANCE We demonstrated that increased iNOS-NO contributed to the impairment of the contractile response of aortic smooth muscle cells in female type 1 diabetic rats and that increased expression of iNOS may involve the participation of ESR2/ERβ.
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Affiliation(s)
- Simone Marcieli Sartoretto
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Fernanda Fernandes Santos
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Beatriz Pereira Costa
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Graziela Scalianti Ceravolo
- Department of Physiological Sciences, Biological Sciences Center, State University of Londrina, Paraná, Brazil
| | - Rosângela Santos-Eichler
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Zuleica Bruno Fortes
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Eliana Hiromi Akamine
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
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Chen NC, Chen CH, Lin TK, Chen SD, Tsai MH, Chang CC, Tsai WC, Chuang YC. Risk of Microangiopathy in Patients with Epilepsy under Long-term Antiepileptic Drug Therapy. Front Neurol 2018; 9:113. [PMID: 29593629 PMCID: PMC5857530 DOI: 10.3389/fneur.2018.00113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Accepted: 02/14/2018] [Indexed: 01/04/2023] Open
Abstract
Background Long-term antiepileptic drug (AED) therapy is considered a risk factor of atherosclerosis. Furthermore, the duration of therapy contributes to acceleration of large-vessel atherosclerosis. Therefore, in this study, we tested the hypothesis that long-term AED therapy plays a crucial role in the pathogenesis of microangiopathy in patients with epilepsy. Methods We recruited 120 patients with epilepsy (age, 18–60 years) and 40 healthy controls. Optical coherence tomography (OCT) was used to measure the central macular thickness and diameters of the retinal artery and vein to evaluate atherosclerotic retinopathy; microalbumin and creatinine levels in urine were assessed to evaluate atherosclerotic nephropathy. In addition, high-sensitivity C-reactive protein (hs-CRP), lipid profiles, homocysteine, folate, uric acid, and body mass index were determined. Results The ratio of urine albumin to creatine and OCT findings showed that patients with epilepsy had higher abnormal microalbuminuria and narrowing retinal vein diameters, respectively. Multiple linear regression analysis showed that increased triglyceride and hs-CRP levels might contribute to microalbuminuria. In addition, serum creatinine, duration of AED therapy, enzyme-inducing AED therapy, and duration of enzyme-inducing AED therapy were candidate risk factors for retinal vein narrowing. Conclusion Patients with epilepsy are at a higher risk for microangiopathy presented as retinopathy and nephropathy. Long-term AED therapy, particularly with enzyme-inducing AEDs; high triglyceride levels, and inflammatory processes play an important role in the development of microangiopathy in patients with epilepsy.
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Affiliation(s)
- Nai-Ching Chen
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chih-Hsin Chen
- Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Tsu-Kung Lin
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Shang-Der Chen
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Meng-Han Tsai
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chiung-Chih Chang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Wan-Chen Tsai
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yao-Chung Chuang
- Department of Neurology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Biological Science, National Sun Yat-sen University, Kaohsiung, Taiwan
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Salusin- β Is Involved in Diabetes Mellitus-Induced Endothelial Dysfunction via Degradation of Peroxisome Proliferator-Activated Receptor Gamma. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:6905217. [PMID: 29359008 PMCID: PMC5735326 DOI: 10.1155/2017/6905217] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Accepted: 10/08/2017] [Indexed: 12/18/2022]
Abstract
The pathophysiological mechanisms for vascular lesions in diabetes mellitus (DM) are complex, among which endothelial dysfunction plays a vital role. Therapeutic target against endothelial injury may provide critical venues for treatment of diabetic vascular diseases. We recently identified that salusin-β contributed to high glucose-induced endothelial cell apoptosis. However, the roles of salusin-β in DM-induced endothelial dysfunction remain largely elusive. Male C57BL/6J mice were used to induce type 2 diabetes mellitus (T2DM) model. Human umbilical vein endothelial cells (HUVECs) were cultured in high glucose/high fat (HG/HF) medium. We demonstrated increased expression of salusin-β in diabetic aortic tissues and high-glucose/high-fat- (HG/HF-) incubated HUVECs. Disruption of salusin-β by shRNA abrogated the reactive oxygen species (ROS) production, inflammation, and nitrotyrosine content of HUVECs cultured in HG/HF medium. The HG/HF-mediated decrease in peroxisome proliferator-activated receptor γ (PPARγ) expression was restored by salusin-β shRNA, and PPARγ inhibitor T0070907 abolished the protective actions of salusin-β shRNA on endothelial injury in HG/HF-treated HUVECs. Salusin-β silencing obviously improved endothelium-dependent vasorelaxation, oxidative stress, inflammatory response, and nitrative stress in diabetic aorta. Taken together, our results highlighted the essential role of salusin-β in pathological endothelial dysfunction, and salusin-β may be a promising target in treatment of vascular complications of DM.
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Sheng M, Huang Z, Pan L, Yu M, Yi C, Teng L, He L, Gu C, Xu C, Li J. SOCS2 exacerbates myocardial injury induced by ischemia/reperfusion in diabetic mice and H9c2 cells through inhibiting the JAK-STAT-IGF-1 pathway. Life Sci 2017; 188:101-109. [DOI: 10.1016/j.lfs.2017.08.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 08/22/2017] [Accepted: 08/31/2017] [Indexed: 12/20/2022]
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Tabatabaei-Malazy O, Khodaeian M, Bitarafan F, Larijani B, M Amoli M. Polymorphisms of Antioxidant Genes as a Target for Diabetes Management. INTERNATIONAL JOURNAL OF MOLECULAR AND CELLULAR MEDICINE 2017; 6:135-147. [PMID: 29682485 PMCID: PMC5898637 DOI: 10.22088/acadpub.bums.6.3.135] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 06/29/2017] [Indexed: 12/16/2022]
Abstract
Diabetes mellitus (DM) is one of the most important health problems with increasing prevalence worldwide. Oxidative stress, a result of imbalance between reactive oxygen species (ROS) generation and antioxidant defense mechanisms has been demonstrated as the main pathology in DM. Hyperglycemia-induced ROS productions can induce oxidative stress through four major molecular mechanisms including the polyol pathway, advanced glycation end- products formation, activation of protein kinase C isoforms, and the hexosamine pathways. In the development of type 2 DM (T2DM) and its complications, genetic and environmental factors play important roles. Therefore, the aim of this review was to focus on the assessment of single-nucleotide polymorphisms within antioxidant enzymes including superoxide dismutase, catalase, glutathione peroxidase, glutathione-S-transferase, nitric oxide synthase, and NAD(P)H oxidase and their association with T2DM. The results would be helpful in understanding the mechanisms involved in pathogenesis of disease besides discovering new treatment approaches in management of DM.
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Affiliation(s)
- Ozra Tabatabaei-Malazy
- Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehrnoosh Khodaeian
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Bitarafan
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa M Amoli
- Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular -Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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Novel Therapeutic Effects of Leonurine On Ischemic Stroke: New Mechanisms of BBB Integrity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:7150376. [PMID: 28690765 PMCID: PMC5485366 DOI: 10.1155/2017/7150376] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 04/10/2017] [Accepted: 04/16/2017] [Indexed: 12/12/2022]
Abstract
Stroke is a leading cause of morbidity and mortality globally. Leonurine (also named SCM-198), a compound extracted from Herba leonuri, was effective on the prevention of various cardiovascular and brain diseases. The purpose of this study was to explore the possible therapeutic potential of SCM-198 against ischemia reperfusion injury and underlying mechanisms. In the in vivo transient middle cerebral artery occlusion (tMCAO) rat model, we found that treatment with SCM-198 could decrease infarct volume and improve neurological deficit by protecting against blood-brain barrier (BBB) breakdown. In the in vitro model of cell oxygen-glucose deprivation and reoxygenation (OGD/R), consistent results were obtained with decreased reactive oxygen species (ROS) production and maintained the BBB integrity. Further study demonstrated that SCM-198 increased the expression of histone deacetylase- (HDAC-) 4 which could inhibit NADPH oxidase- (NOX-) 4 and matrix metalloproteinase- (MMP-) 9 expression, resulting in the elevation of tight junction proteins, including claudin-5, occludin, and zonula occluden- (ZO-) 1. These results indicated SCM-198 protected BBB integrity by regulating the HDAC4/NOX4/MMP-9 tight junction pathway. Our findings provided novel insights into the protective effects and mechanisms of SCM-198 on ischemic stroke, indicating SCM-198 as a new class of potential drug against acute onset of ischemic stroke.
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Chen GP, Zhang XQ, Wu T, Han J, Ye D. Inhibition of farnesyl pyrophosphate synthase attenuates high glucose-induced vascular smooth muscle cells proliferation. Mol Med Rep 2017; 15:3153-3160. [DOI: 10.3892/mmr.2017.6360] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 03/13/2017] [Indexed: 11/05/2022] Open
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McCarty MF. Supplementation with Phycocyanobilin, Citrulline, Taurine, and Supranutritional Doses of Folic Acid and Biotin-Potential for Preventing or Slowing the Progression of Diabetic Complications. Healthcare (Basel) 2017; 5:E15. [PMID: 28335416 PMCID: PMC5371921 DOI: 10.3390/healthcare5010015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 02/23/2017] [Accepted: 03/06/2017] [Indexed: 02/07/2023] Open
Abstract
Oxidative stress, the resulting uncoupling of endothelial nitric oxide synthase (eNOS), and loss of nitric oxide (NO) bioactivity, are key mediators of the vascular and microvascular complications of diabetes. Much of this oxidative stress arises from up-regulated nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity. Phycocyanobilin (PhyCB), the light-harvesting chromophore in edible cyanobacteria such as spirulina, is a biliverdin derivative that shares the ability of free bilirubin to inhibit certain isoforms of NADPH oxidase. Epidemiological studies reveal that diabetics with relatively elevated serum bilirubin are less likely to develop coronary disease or microvascular complications; this may reflect the ability of bilirubin to ward off these complications via inhibition of NADPH oxidase. Oral PhyCB may likewise have potential in this regard, and has been shown to protect diabetic mice from glomerulosclerosis. With respect to oxidant-mediated uncoupling of eNOS, high-dose folate can help to reverse this by modulating the oxidation status of the eNOS cofactor tetrahydrobiopterin (BH4). Oxidation of BH4 yields dihydrobiopterin (BH2), which competes with BH4 for binding to eNOS and promotes its uncoupling. The reduced intracellular metabolites of folate have versatile oxidant-scavenging activity that can prevent oxidation of BH4; concurrently, these metabolites promote induction of dihydrofolate reductase, which functions to reconvert BH2 to BH4, and hence alleviate the uncoupling of eNOS. The arginine metabolite asymmetric dimethylarginine (ADMA), typically elevated in diabetics, also uncouples eNOS by competitively inhibiting binding of arginine to eNOS; this effect is exacerbated by the increased expression of arginase that accompanies diabetes. These effects can be countered via supplementation with citrulline, which efficiently enhances tissue levels of arginine. With respect to the loss of NO bioactivity that contributes to diabetic complications, high dose biotin has the potential to "pinch hit" for diminished NO by direct activation of soluble guanylate cyclase (sGC). High-dose biotin also may aid glycemic control via modulatory effects on enzyme induction in hepatocytes and pancreatic beta cells. Taurine, which suppresses diabetic complications in rodents, has the potential to reverse the inactivating impact of oxidative stress on sGC by boosting synthesis of hydrogen sulfide. Hence, it is proposed that concurrent administration of PhyCB, citrulline, taurine, and supranutritional doses of folate and biotin may have considerable potential for prevention and control of diabetic complications. Such a regimen could also be complemented with antioxidants such as lipoic acid, N-acetylcysteine, and melatonin-that boost cellular expression of antioxidant enzymes and glutathione-as well as astaxanthin, zinc, and glycine. The development of appropriate functional foods might make it feasible for patients to use complex nutraceutical regimens of the sort suggested here.
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Affiliation(s)
- Mark F McCarty
- Catalytic Longevity, 7831 Rush Rose Dr., Apt. 316, Carlsbad, CA 92009, USA.
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Sommese L, Zullo A, Mancini FP, Fabbricini R, Soricelli A, Napoli C. Clinical relevance of epigenetics in the onset and management of type 2 diabetes mellitus. Epigenetics 2017; 12:401-415. [PMID: 28059593 DOI: 10.1080/15592294.2016.1278097] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Epigenetics is involved in the altered expression of gene networks that underlie insulin resistance and insufficiency. Major genes controlling β-cell differentiation and function, such as PAX4, PDX1, and GLP1 receptor, are epigenetically controlled. Epigenetics can cause insulin resistance through immunomediated pro-inflammatory actions related to several factors, such as NF-kB, osteopontin, and Toll-like receptors. Hereafter, we provide a critical and comprehensive summary on this topic with a particular emphasis on translational and clinical aspects. We discuss the effect of epigenetics on β-cell regeneration for cell replacement therapy, the emerging bioinformatics approaches for analyzing the epigenetic contribution to type 2 diabetes mellitus (T2DM), the epigenetic core of the transgenerational inheritance hypothesis in T2DM, and the epigenetic clinical trials on T2DM. Therefore, prevention or reversion of the epigenetic changes occurring during T2DM development may reduce the individual and societal burden of the disease.
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Affiliation(s)
- Linda Sommese
- a U.O.C. Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Regional Reference Laboratory of Transplant Immunology , Department of Internal and Specialty Medicine , Azienda Ospedaliera Universitaria (AOU), Università degli Studi della Campania "Luigi Vanvitelli ," Italy.,b Department of Experimental Medicine , Second University of Naples , Italy
| | - Alberto Zullo
- c Department of Sciences and Technologies , University of Sannio , Benevento , Italy.,d CEINGE-Advanced Biotechnologies , Naples , Italy
| | | | - Rossella Fabbricini
- a U.O.C. Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Regional Reference Laboratory of Transplant Immunology , Department of Internal and Specialty Medicine , Azienda Ospedaliera Universitaria (AOU), Università degli Studi della Campania "Luigi Vanvitelli ," Italy
| | - Andrea Soricelli
- e IRCCS Research Institute SDN , Naples , Italy.,f Department of Studies of Institutions and Territorial Systems , University of Naples Parthenope , Naples , Italy
| | - Claudio Napoli
- a U.O.C. Clinical Immunology, Immunohematology, Transfusion Medicine and Transplant Immunology, Regional Reference Laboratory of Transplant Immunology , Department of Internal and Specialty Medicine , Azienda Ospedaliera Universitaria (AOU), Università degli Studi della Campania "Luigi Vanvitelli ," Italy.,e IRCCS Research Institute SDN , Naples , Italy.,g Department of Medical, Surgical, Neurological, Metabolic and Geriatric Sciences , Second University of Naples , Italy
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Shen HL, Yang SP, Wang KJ, Huang BL, Huang WB, Wu JZ, Lv GR. Evaluation of gastric blood supply in diabetic patients with gastroparesis by contrast-enhanced ultrasound. Br J Radiol 2016; 89:20160366. [PMID: 27759430 PMCID: PMC5604913 DOI: 10.1259/bjr.20160366] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 10/06/2016] [Accepted: 10/17/2016] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE Improvement in regional blood flow has been shown to ameliorate diabetic gastroparesis. We compared the gastric blood supply in patients with diabetes with gastroparesis with that in healthy subjects, by using contrast-enhanced ultrasound (CEUS). METHODS 30 healthy subjects and 40 patients with diabetic gastroparesis were enrolled. The CEUS parameters of greater curvatures of the antrum (GCOA) and lesser curvatures of the antrum (LCOA), including peak intensity (PI) and the area under the curve (AUC), were compared between the two groups. RESULTS Intraclass correlation coefficient (ICC) for PI in healthy subjects measured on CEUS were 0.831-0.857 and 0.803-0.823, respectively. Intra-ICC and inter-ICC values for AUC were 0.805-0.823 and 0.813-0.815, respectively. In both groups, no significant difference was observed in PI and AUC values of GCOA and LCOA (p > 0.05). The PI and AUC of GCOA and LCOA in the diabetes group were less than those in the normal group (p < 0.05). CONCLUSION CEUS can assess stomach wall vascularity with a high reproducibility. Microcirculation in the antrum of patients with diabetic gastroparesis is poorer than that of normal group, which is consistent with the mechanisms of diabetic neuropathy. CEUS can be used for evaluation of microvascular perfusion in patients with stomach wall disease. Advances in knowledge: This was the first study to use CEUS for assessment of blood supply of the gastric wall and to compare microvascular perfusion between healthy individuals and patients with diabetes with gastroparesis.
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Affiliation(s)
- Hao-lin Shen
- Department of Ultrasound, Zhangzhou Hospital, Fujian Medical University, Zhangzhou, Fujian, China
| | - Shu-ping Yang
- Department of Ultrasound, Zhangzhou Hospital, Fujian Medical University, Zhangzhou, Fujian, China
| | - Kang-jian Wang
- Department of Ultrasound, Zhangzhou Hospital, Fujian Medical University, Zhangzhou, Fujian, China
| | - Bei-lei Huang
- Department of Ultrasound, Zhangzhou Hospital, Fujian Medical University, Zhangzhou, Fujian, China
| | - Wen-bao Huang
- Department of Gastroenterology, Zhangzhou Hospital, Fujian Medical University, Zhangzhou, Fujian, China
| | - Jin-zhi Wu
- Department of Endocrinology, Zhangzhou Hospital, Fujian Medical University, Zhangzhou, Fujian, China
| | - Guo-rong Lv
- Department of Ultrasound, Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian, China
- Department of Clinical Medicine, Quanzhou Medical College, Quanzhou, Fujian, China
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Gonçalves I, Edsfeldt A, Colhoun HM, Shore AC, Palombo C, Natali A, Fredrikson GN, Björkbacka H, Wigren M, Bengtsson E, Östling G, Aizawa K, Casanova F, Persson M, Gooding K, Gates P, Khan F, Looker HC, Adams F, Belch J, Pinnola S, Venturi E, Kozakova M, Gan LM, Schnecke V, Nilsson J. Association between renin and atherosclerotic burden in subjects with and without type 2 diabetes. BMC Cardiovasc Disord 2016; 16:171. [PMID: 27596252 PMCID: PMC5011869 DOI: 10.1186/s12872-016-0346-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 08/11/2016] [Indexed: 01/01/2023] Open
Abstract
Background Activation of the renin-angiotensin-aldosterone-system (RAAS) has been proposed to contribute to development of vascular complications in type 2 diabetes (T2D). The aim of the present study was to determine if plasma renin levels are associated with the severity of vascular changes in subjects with and without T2D. Methods Renin was analyzed by the Proximity Extension Assay in subjects with (n = 985) and without (n = 515) T2D participating in the SUMMIT (SUrrogate markers for Micro- and Macro-vascular hard endpoints for Innovative diabetes Tools) study and in 205 carotid endarterectomy patients. Vascular changes were assessed by determining ankle-brachial pressure index (ABPI), carotid intima-media thickness (IMT), carotid plaque area, pulse wave velocity (PWV) and the reactivity hyperemia index (RHI). Results Plasma renin was elevated in subjects with T2D and demonstrated risk factor-independent association with prevalent cardiovascular disease both in subjects with and without T2D. Renin levels increased with age, body mass index, HbA1c and correlated inversely with HDL. Subjects with T2D had more severe carotid disease, increased arterial stiffness, and impaired endothelial function. Risk factor-independent associations between renin and APBI, bulb IMT, carotid plaque area were observed in both T2D and non-T2D subjects. These associations were independent of treatment with RAAS inhibitors. Only weak associations existed between plasma renin and the expression of pro-inflammatory and fibrous components in plaques from 205 endarterectomy patients. Conclusions Our findings provide clinical evidence for associations between systemic RAAS activation and atherosclerotic burden and suggest that this association is of particular importance in T2D.
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Affiliation(s)
- Isabel Gonçalves
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Andreas Edsfeldt
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Helen M Colhoun
- Medical Research Institute, University of Dundee, Dundee, UK
| | - Angela C Shore
- Diabetes and Vascular Medicine, NIHR Exeter Clinical Research Facility and University of Exeter Medical School, Exeter, UK
| | - Carlo Palombo
- Department of Surgical, Medical, Molecular Pathology, and Critical Area Medicine, Pisa, Italy
| | - Andrea Natali
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | | | - Harry Björkbacka
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Maria Wigren
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Eva Bengtsson
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Gerd Östling
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Kunihiko Aizawa
- Diabetes and Vascular Medicine, NIHR Exeter Clinical Research Facility and University of Exeter Medical School, Exeter, UK
| | - Francesco Casanova
- Diabetes and Vascular Medicine, NIHR Exeter Clinical Research Facility and University of Exeter Medical School, Exeter, UK
| | | | - Kim Gooding
- Diabetes and Vascular Medicine, NIHR Exeter Clinical Research Facility and University of Exeter Medical School, Exeter, UK
| | - Phil Gates
- Diabetes and Vascular Medicine, NIHR Exeter Clinical Research Facility and University of Exeter Medical School, Exeter, UK
| | - Faisel Khan
- Medical Research Institute, University of Dundee, Dundee, UK
| | - Helen C Looker
- Medical Research Institute, University of Dundee, Dundee, UK
| | - Fiona Adams
- Medical Research Institute, University of Dundee, Dundee, UK
| | - Jill Belch
- Medical Research Institute, University of Dundee, Dundee, UK
| | - Silvia Pinnola
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Elena Venturi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Michaela Kozakova
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Li-Ming Gan
- AstraZeneca, Cardiovascular and Metabolic Diseases, Mölndal, Sweden
| | - Volker Schnecke
- AstraZeneca, Cardiovascular and Metabolic Diseases, Mölndal, Sweden
| | - Jan Nilsson
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden.
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Liu Z, Matsuzawa Y, Herrmann J, Li J, Lennon RJ, Crusan DJ, Kwon TG, Zhang M, Sun T, Yang S, Gulati R, Bell MR, Lerman LO, Lerman A. Relation between fractional flow reserve value of coronary lesions with deferred revascularization and cardiovascular outcomes in non-diabetic and diabetic patients. Int J Cardiol 2016; 219:56-62. [PMID: 27281577 DOI: 10.1016/j.ijcard.2016.05.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 05/03/2016] [Accepted: 05/12/2016] [Indexed: 10/21/2022]
Abstract
BACKGROUND FFR of deferred PCI lesions can predict future cardiovascular events. However, the prognostic utility of FFR remains unclear in diabetic patients in view of the potential impact of the diffuse nature of vascular disease process. We aimed to study the relation between fractional flow reserve (FFR) values and long-term outcomes of diabetic and non-diabetic patients with deferred percutaneous coronary intervention (PCI). METHODS Patients with FFR assessment and deferred PCI (n=630) were enrolled and stratified according to diabetes mellitus (DM) status and FFR values. Patients were followed over a median of 39months. Cox proportional hazard regression models were used to analyze the association between clinical endpoints and clinical factors such as DM and FFR. RESULTS In non-diabetics (n=450), higher FFR values were associated with less cardiovascular events (hazard ratio (HR) for death and myocardial infarction (MI) [95% confidence interval (CI)], 0.61[0.44 to 0.86] per 0.1 increase in FFR, p=0.007; HR for revascularization [95%CI], 0.66[0.49 to 0.9] per 0.1 increase in FFR, p=0.006). In diabetics (n=180), there was no difference in death and MI across the range of FFR values. Among those patients with an FFR >0.85, diabetics had a more than two-fold higher risk of death and MI than non-diabetics (HR [95% CI], 2.20 [1.19 to 4.01], p=0.015). CONCLUSION Among non-diabetic patients with deferred PCI, a higher FFR was associated with lower rates of death, MI and revascularization. On the contrary in diabetic patients with deferred revascularization, FFR was not able to differentiate the risk of cardiovascular events.
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Affiliation(s)
- Zhi Liu
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA; Division of Cardiology, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Yasushi Matsuzawa
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Joerg Herrmann
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Jing Li
- Division of Cardiology, Xuanwu Hospital Capital Medical University, Beijing 100053, China
| | - Ryan J Lennon
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Daniel J Crusan
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA
| | - Taek-Geun Kwon
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Ming Zhang
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Tao Sun
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Shiwei Yang
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Rajiv Gulati
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Malcolm R Bell
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA
| | - Lilach O Lerman
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, USA
| | - Amir Lerman
- Division of Cardiovascular Diseases, Mayo Clinic, Rochester, MN, USA.
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Kuricová K, Pácal L, Šoupal J, Prázný M, Kaňková K. Effect of glucose variability on pathways associated with glucotoxicity in diabetes: Evaluation of a novel in vitro experimental approach. Diabetes Res Clin Pract 2016; 114:1-8. [PMID: 27103362 DOI: 10.1016/j.diabres.2016.02.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/15/2016] [Accepted: 02/08/2016] [Indexed: 01/07/2023]
Abstract
AIMS Glycaemic variability (GV) has been hypothesized to increase the risk of diabetes complications; however, results of clinical studies are contradictory. The effect of GV on cell phenotypes has been investigated in vitro showing that GV may have more deleterious effect on cells that high glucose itself. However, methodology used to study GV in vitro differs significantly between studies and does not reflect in vivo situation. Therefore we aimed to establish clinically relevant an in vitro experimental approach for the study of GV that reflects intra-day glucose fluctuations of subjects with type 1 diabetes mellitus (T1DM) and of healthy subjects and to test how low and high GV affect expression of genes that protects cells from hyperglycaemia-induced damage. METHODS Human umbilical vein endothelial cells (HUVEC) were cultured 24h in medium with different glucose profiles: high GV, low GV and GV of healthy subjects-profiles created according to CGM of T1DM patients and healthy subjects. These profiles were compared to commonly used 5.5 and 25mmol/l glucose concentrations. Gene expression was determined using quantitative PCR. RESULTS Our results showed general down-regulation of enzymes that are involved in the protection against hyperglycaemia-induced intracellular changes in both low and high GV compared to normal glycaemia similarly to the decrease induced by continuous hyperglycaemia. Gene expressions did not differ between high and low GV. CONCLUSION Our data indicate that GV may have similar or even greater effect than continuous hyperglycaemia on the expression of several genes relevant to pathogenesis of diabetes microvascular complications.
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Affiliation(s)
- Katarína Kuricová
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lukáš Pácal
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jan Šoupal
- 3rd Department of Internal Medicine, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Martin Prázný
- 3rd Department of Internal Medicine, 1st Faculty of Medicine, Charles University, Prague, Czech Republic.
| | - Kateřina Kaňková
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
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Fenofibrate plus Metformin Produces Cardioprotection in a Type 2 Diabetes and Acute Myocardial Infarction Model. PPAR Res 2016; 2016:8237264. [PMID: 27069466 PMCID: PMC4812489 DOI: 10.1155/2016/8237264] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 02/18/2016] [Indexed: 11/17/2022] Open
Abstract
We investigated whether fenofibrate, metformin, and their combination generate cardioprotection in a rat model of type 2 diabetes (T2D) and acute myocardial infarction (AMI). Streptozotocin-induced diabetic- (DB-) rats received 14 days of either vehicle, fenofibrate, metformin, or their combination and immediately after underwent myocardial ischemia/reperfusion (I/R). Fenofibrate plus metformin generated cardioprotection in a DBI/R model, reported as decreased coronary vascular resistance, compared to DBI/R-Vehicle, smaller infarct size, and increased cardiac work. The subchronic treatment with fenofibrate plus metformin increased, compared with DBI/R-Vehicle, total antioxidant capacity, manganese-dependent superoxide dismutase activity (MnSOD), guanosine triphosphate cyclohydrolase I (GTPCH-I) expression, tetrahydrobiopterin : dihydrobiopterin (BH4 : BH2) ratio, endothelial nitric oxide synthase (eNOS) activity, nitric oxide (NO) bioavailability, and decreased inducible NOS (iNOS) activity. These findings suggest that PPARα activation by fenofibrate + metformin, at low doses, generates cardioprotection in a rat model of T2D and AMI and may represent a novel treatment strategy to limit I/R injury in patients with T2D.
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The Impact of Bariatric Surgery on Diabetic Retinopathy: A Systematic Review and Meta-Analysis. Obes Surg 2016; 25:1604-9. [PMID: 25515499 DOI: 10.1007/s11695-014-1539-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Significant reductions in glucose control immediately post bariatric surgery in patients with longstanding poor glycemic control can lead to the paradoxical progression of diabetic retinopathy (DR) in susceptible individuals. Bariatric surgery results in dramatic and immediate diabetic control postoperatively. We aimed to systematically review the literature to assess the effect of bariatric surgery on DR. METHODS A comprehensive search of electronic databases (e.g., MEDLINE, EMBASE, SCOPUS, Web of Science, and the Cochrane Library) was completed. All randomized controlled trials, non-randomized comparison study, and case series were included. Inclusion criteria included English-speaking studies, enrolling ≥ 5 patients, and contained ophthalmological data on outcome of DR pre- and post bariatric surgery. Two independently reviewers screened abstracts, reviewed full text versions of all studies classified, and extracted data. All comparison studies included in the meta-analysis were assessed independently by two reviewers for methodological quality using the Cochrane Risk of Bias (RoB) tools. Disagreements were resolved by re-extraction, or third-party adjudication. Where possible and appropriate, a meta-analysis was conducted. RESULTS A total of 277 studies were identified using our search criteria for screening. Four primary studies (n = 148 patients) met our inclusion criteria and were included in the systematic review. These included no randomized controlled trials and four non-randomized case series. Patients with no preoperative DR (n = 80), following bariatric surgery, an average of 92.5 ± 7.4 % remained disease free, while 7.5 ± 7.4 % of patients progressed to DR. Patients with diabetic retinopathy preoperatively (n = 68), following bariatric surgery, an average of 57.4 ± 18.5 % of patients had no change, 23.5 ± 18.7 % of patients had progression, and 19.2 ± 2.9 % of patients had improvement in their disease. CONCLUSIONS Progression of diabetic retinopathy is a significant issue postoperatively following bariatric surgery. Patients with a diagnosis of DR prior to surgery are at increased risk of further progression in their disease and should receive adequate counseling and evaluation prior to undergoing a surgical procedure. However, the few primary studies in this systematic review limit any conclusion. Further studies are needed to further evaluate these results.
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Akhtar S, Chandrasekhar B, Attur S, Dhaunsi GS, Yousif MHM, Benter IF. Transactivation of ErbB Family of Receptor Tyrosine Kinases Is Inhibited by Angiotensin-(1-7) via Its Mas Receptor. PLoS One 2015; 10:e0141657. [PMID: 26536590 PMCID: PMC4633289 DOI: 10.1371/journal.pone.0141657] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 10/12/2015] [Indexed: 01/03/2023] Open
Abstract
Transactivation of the epidermal growth factor receptor (EGFR or ErbB) family members, namely EGFR and ErbB2, appears important in the development of diabetes-induced vascular dysfunction. Angiotensin-(1–7) [Ang-(1–7)] can prevent the development of hyperglycemia-induced vascular complications partly through inhibiting EGFR transactivation. Here, we investigated whether Ang-(1–7) can inhibit transactivation of ErbB2 as well as other ErbB receptors in vivo and in vitro. Streptozotocin-induced diabetic rats were chronically treated with Ang-(1–7) or AG825, a selective ErbB2 inhibitor, for 4 weeks and mechanistic studies performed in the isolated mesenteric vasculature bed as well as in cultured vascular smooth muscle cells (VSMCs). Ang-(1–7) or AG825 treatment inhibited diabetes-induced phosphorylation of ErbB2 receptor at tyrosine residues Y1221/22, Y1248, Y877, as well as downstream signaling via ERK1/2, p38 MAPK, ROCK, eNOS and IkB-α in the mesenteric vascular bed. In VSMCs cultured in high glucose (25 mM), Ang-(1–7) inhibited src-dependent ErbB2 transactivation that was opposed by the selective Mas receptor antagonist, D-Pro7-Ang-(1–7). Ang-(1–7) via Mas receptor also inhibited both Angiotensin II- and noradrenaline/norephinephrine-induced transactivation of ErbB2 and/or EGFR receptors. Further, hyperglycemia-induced transactivation of ErbB3 and ErbB4 receptors could be attenuated by Ang-(1–7) that could be prevented by D-Pro7-Ang-(1–7) in VSMC. These data suggest that Ang-(1–7) via its Mas receptor acts as a pan-ErbB inhibitor and might represent a novel general mechanism by which Ang-(1–7) exerts its beneficial effects in many disease states including diabetes-induced vascular complications.
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MESH Headings
- Angiotensin I/pharmacology
- Animals
- Blotting, Western
- Cells, Cultured
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Type 1/drug therapy
- Diabetes Mellitus, Type 1/genetics
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/pathology
- ErbB Receptors/antagonists & inhibitors
- ErbB Receptors/genetics
- Gene Expression Regulation/drug effects
- Glucose/metabolism
- Male
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Peptide Fragments/pharmacology
- Phosphorylation
- Proto-Oncogene Mas
- Proto-Oncogene Proteins/metabolism
- Rats
- Rats, Wistar
- Receptors, G-Protein-Coupled/metabolism
- Signal Transduction
- Transcriptional Activation/drug effects
- Vasodilator Agents/pharmacology
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Affiliation(s)
- Saghir Akhtar
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
- * E-mail:
| | - Bindu Chandrasekhar
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
| | - Sreeja Attur
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
| | - Gursev S. Dhaunsi
- Department of Pediatrics, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
| | - Mariam H. M. Yousif
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
| | - Ibrahim F. Benter
- Department of Pharmacology and Toxicology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
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Zhu D, Wang H, Zhang J, Zhang X, Xin C, Zhang F, Lee Y, Zhang L, Lian K, Yan W, Ma X, Liu Y, Tao L. Irisin improves endothelial function in type 2 diabetes through reducing oxidative/nitrative stresses. J Mol Cell Cardiol 2015. [DOI: 10.1016/j.yjmcc.2015.07.015] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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47
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Benter IF, Sarkhou F, Al-Khaldi AT, Chandrasekhar B, Attur S, Dhaunsi GS, Yousif MHM, Akhtar S. The dual targeting of EGFR and ErbB2 with the inhibitor Lapatinib corrects high glucose-induced apoptosis and vascular dysfunction by opposing multiple diabetes-induced signaling changes. J Drug Target 2015; 23:506-18. [DOI: 10.3109/1061186x.2015.1057150] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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48
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Wu Y, Xue L, Du W, Huang B, Tang C, Liu C, Qiu H, Jiang Q. Polydatin Restores Endothelium-Dependent Relaxation in Rat Aorta Rings Impaired by High Glucose: A Novel Insight into the PPARβ-NO Signaling Pathway. PLoS One 2015; 10:e0126249. [PMID: 25941823 PMCID: PMC4420467 DOI: 10.1371/journal.pone.0126249] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 03/30/2015] [Indexed: 02/02/2023] Open
Abstract
Polydatin, a natural component from Polygonum Cuspidatum, has important therapeutic effects on metabolic syndrome. A novel therapeutic strategy using polydatin to improve vascular function has recently been proposed to treat diabetes-related cardiovascular complications. However, the biological role and molecular basis of polydatin’s action on vascular endothelial cells (VECs)-mediated vasodilatation under diabetes-related hyperglycemia condition remain elusive. The present study aimed to assess the contribution of polydatin in restoring endothelium-dependent relaxation and to determine the details of its underlying mechanism. By measuring endothelium-dependent relaxation, we found that acetylcholine-induced vasodilation was impaired by elevated glucose (55 mmol/L); however, polydatin (1, 3, 10 μmol/L) could restore the relaxation in a dose-dependent manner. Polydatin could also improve the histological damage to endothelial cells in the thoracic aorta. Polydatin’s effects were mediated via promoting the expression of endothelial NO synthase (eNOS), enhancing eNOS activity and decreasing the inducible NOS (iNOS) level, finally resulting in a beneficial increase in NO release, which probably, at least in part, through activation of the PPARβ signaling pathway. The results provided a novel insight into polydatin action, via PPARβ-NO signaling pathways, in restoring endothelial function in high glucose conditions. The results also indicated the potential utility of polydatin to treat diabetes related cardiovascular diseases.
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Affiliation(s)
- Yang Wu
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, PR China
| | - Lai Xue
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, PR China
| | - Weimin Du
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, PR China
| | - Bo Huang
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, PR China
| | - Cuiping Tang
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, PR China
| | - Changqing Liu
- Pharmaceutical college, Fujiang medical University, Fujian 350004, PR China
| | - Hongmei Qiu
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, PR China
| | - Qingsong Jiang
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing 400016, PR China
- * E-mail:
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Kadakol A, Malek V, Goru SK, Pandey A, Bagal S, Gaikwad AB. Esculetin attenuates alterations in Ang II and acetylcholine mediated vascular reactivity associated with hyperinsulinemia and hyperglycemia. Biochem Biophys Res Commun 2015; 461:342-7. [DOI: 10.1016/j.bbrc.2015.04.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 04/01/2015] [Indexed: 10/23/2022]
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50
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Vascular effects of advanced glycation end-products: content of immunohistochemically detected AGEs in radial artery samples as a predictor for arterial calcification and cardiovascular risk in asymptomatic patients with chronic kidney disease. DISEASE MARKERS 2015; 2015:153978. [PMID: 25852219 PMCID: PMC4380091 DOI: 10.1155/2015/153978] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 02/24/2015] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Our aim was to determine whether vascular deposition of advanced glycation end-products (AGEs) is associated with arterial calcification and cardiovascular mortality in chronic kidney disease (CKD) patients and to assess the relationships between vascular content of AGEs and selected clinical and biochemical parameters. MATERIALS AND METHODS The study comprised 54 CKD patients (33 hemodialyzed, 21 predialyzed). Examined parameters included BMI, incidence of diabetes, plasma fasting glucose, AGEs, soluble receptor for AGEs and 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging, serum C-reactive protein (hsCRP), plasminogen activator inhibitor-1 (PAI-1), and fetuin-A. Fragments of radial artery obtained during creation of hemodialysis access were stained for calcifications using alizarin red. AGEs deposits were identified immunohistochemically and their relative content was quantified. RESULTS Vascular content of AGEs was positively correlated with BMI, hsCRP, fetuin-A, PAI-1, and DPPH scavenging in simple regression; only fetuin-A was an independent predictor in multiple regression. There was a significant positive trend in the intensity of AGEs immunostaining among patients with grades 1, 2, and 3 calcifications. AGEs immunostaining intensity predicted 3-year cardiovascular mortality irrespective of patient's age. CONCLUSIONS The present study demonstrates an involvement of AGEs in the development of medial arterial calcification and the impact of arterial AGE deposition on cardiovascular mortality in CKD patients.
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