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Alhalafi A, Alqahtani SM, Alqarni NA, Aljuaid AT, Aljaber GT, Alshahrani LM, Mushait H, Nandi PA. Utilizing Artificial Intelligence Among Patients With Diabetes: A Systematic Review and Meta-Analysis. Cureus 2024; 16:e58713. [PMID: 38779284 PMCID: PMC11110080 DOI: 10.7759/cureus.58713] [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: 03/27/2024] [Accepted: 04/21/2024] [Indexed: 05/25/2024] Open
Abstract
Diabetes mellitus, a condition characterized by dysregulation of blood glucose levels, poses significant health challenges globally. This meta-analysis and systematic review aimed to evaluate the effectiveness of artificial intelligence (AI) in managing diabetes, underpinned by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The review scrutinized articles published between January 2019 and February 2024, sourced from six electronic databases: Web of Science, Google Scholar, PubMed, Cochrane Library, EMBASE, and MEDLINE, using keywords such as "Artificial intelligence use in medicine, Diabetes management, Health technology, Machine learning, Diabetic patients, AI applications, and Health informatics." The analysis revealed a notable variance in the prevalence of diabetes symptoms between patients managed with AI models and those receiving standard treatments or other machine learning models, with a risk ratio (RR) of 0.98 (95% CI: 0.88-1.08, I2 = 0%). Sub-group analyses, focusing on symptom detection and management, consistently showed outcomes favoring AI interventions, with RRs of 0.97 (95% CI: 0.87-1.08, I2 = 0%) for symptom detection and 0.97 (95% CI: 0.56-1.57, I2 = 0%) for management, respectively. The findings underscore the potential of AI in enhancing diabetes care, particularly in early disease detection and personalized lifestyle recommendations, addressing the significant health risks associated with diabetes, including increased morbidity and mortality. This study highlights the promising role of AI in revolutionizing diabetes management, advocating for its expanded use in healthcare settings to improve patient outcomes and optimize treatment efficacy.
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Affiliation(s)
- Abdullah Alhalafi
- Department of Family and Community Medicine, University of Bisha, Bisha, SAU
| | | | | | | | - Ghade T Aljaber
- Department of Medicine, Batterjee Medical College, Aseer, SAU
| | | | | | - Partha A Nandi
- Department of Family and Community Medicine, University of Bisha, Bisha, SAU
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2
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Mahdizade Ari M, Dadgar L, Elahi Z, Ghanavati R, Taheri B. Genetically Engineered Microorganisms and Their Impact on Human Health. Int J Clin Pract 2024; 2024:6638269. [PMID: 38495751 PMCID: PMC10944348 DOI: 10.1155/2024/6638269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 11/20/2023] [Accepted: 02/12/2024] [Indexed: 03/19/2024] Open
Abstract
The emergence of antibiotic-resistant strains, the decreased effectiveness of conventional therapies, and the side effects have led researchers to seek a safer, more cost-effective, patient-friendly, and effective method that does not develop antibiotic resistance. With progress in synthetic biology and genetic engineering, genetically engineered microorganisms effective in treatment, prophylaxis, drug delivery, and diagnosis have been developed. The present study reviews the types of genetically engineered bacteria and phages, their impacts on diseases, cancer, and metabolic and inflammatory disorders, the biosynthesis of these modified strains, the route of administration, and their effects on the environment. We conclude that genetically engineered microorganisms can be considered promising candidates for adjunctive treatment of diseases and cancers.
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Affiliation(s)
- Marzie Mahdizade Ari
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Microbial Biotechnology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Leila Dadgar
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Microbial Biotechnology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Elahi
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
- Microbial Biotechnology Research Centre, Iran University of Medical Sciences, Tehran, Iran
| | | | - Behrouz Taheri
- Department of Biotechnology, School of Medicine, Ahvaz Jundishapour University of medical Sciences, Ahvaz, Iran
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3
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Abbafati C, Nieddu L, Monasta L. Measures of type 2 diabetes burden in Italy assessed using the AMD dataset over a twelve year span across the Great Recession. Sci Rep 2024; 14:4901. [PMID: 38418541 PMCID: PMC10901812 DOI: 10.1038/s41598-024-54989-8] [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: 08/10/2023] [Accepted: 02/19/2024] [Indexed: 03/01/2024] Open
Abstract
Patients with Type 2 Diabetes Mellitus (T2DM) are rapidly increasing in Italy due to aging, preventable risk factors, and worsening socioeconomic context. T2DM and its sequelae take a heavy toll on healthcare systems and the economy, given costly management, difficulties in coping with everyday life, and decreasing patient/worker productivity. Considering long life expectancy in Italy and a decreasing mortality rate due to T2DM, this study aims to calculate the years lived with disability (YLDs) of T2DM and its sequelae grouped into three categories: Neuropathy, Chronic Kidney Disease and No Complications, taking into consideration sex, year, and geographical location. This is the first attempt to measure YLDs from data that do not rely on self-reported diabetes diagnoses. Data come from the Italian Diabetologists Association dataset, the most comprehensive longitudinal source of national outpatient data. YLDs are obtained by multiplying the number of individuals living with a specific health condition and a disability weight which represents the magnitude of health loss associated with that particular condition. Findings show increasing YLD age-standardized rates for T2DM and its sequelae, especially Neuropathy, with the trend being stronger in the central macro-region and among men, and that 2009 marks a structural change in YLD growth rate. Systematic data collection for measuring the burden of diseases is key, among other things, to policy-making and implementation.
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Affiliation(s)
- Cristiana Abbafati
- Department of Juridical and Economic Studies, Sapienza University of Rome, P.le A. Moro 5, 00185, Rome, Italy.
| | - Luciano Nieddu
- Department of Humanistic and International Social Sciences, UNINT University for International Studies, Via C. Colombo, 200, 00147, Rome, Italy
| | - Lorenzo Monasta
- Clinical Epidemiology and Public Health Research Unit, Institute for Maternal and Child Health-IRCCS "Burlo Garofolo", 34137, Trieste, Italy
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Debnath N, Yadav P, Mehta PK, Gupta P, Kumar D, Kumar A, Gautam V, Yadav AK. Designer probiotics: Opening the new horizon in diagnosis and prevention of human diseases. Biotechnol Bioeng 2024; 121:100-117. [PMID: 37881101 DOI: 10.1002/bit.28574] [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: 11/18/2022] [Revised: 07/19/2023] [Accepted: 09/23/2023] [Indexed: 10/27/2023]
Abstract
Probiotic microorganisms have been used for therapeutic purposes for over a century, and recent advances in biotechnology and genetic engineering have opened up new possibilities for developing therapeutic approaches using indigenous probiotic microorganisms. Diseases are often related to metabolic and immunological factors, which play a critical role in their onset. With the help of advanced genetic tools, probiotics can be modified to produce or secrete important therapeutic peptides directly into mucosal sites, increasing their effectiveness. One potential approach to enhancing human health is through the use of designer probiotics, which possess immunogenic characteristics. These genetically engineered probiotics hold promise in providing novel therapeutic options. In addition to their immunogenic properties, designer probiotics can also be equipped with sensors and genetic circuits, enabling them to detect a range of diseases with remarkable precision. Such capabilities may significantly advance disease diagnosis and management. Furthermore, designer probiotics have the potential to be used in diagnostic applications, offering a less invasive and more cost-effective alternative to conventional diagnostic techniques. This review offers an overview of the different functional aspects of the designer probiotics and their effectiveness on different diseases and also, we have emphasized their limitations and future implications. A comprehensive understanding of these functional attributes may pave the way for new avenues of prevention and the development of effective therapies for a range of diseases.
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Affiliation(s)
- Nabendu Debnath
- Centre for Molecular Biology, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
| | - Pooja Yadav
- Centre for Molecular Biology, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
| | - Praveen K Mehta
- Centre for Molecular Biology, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
| | - Priyamvada Gupta
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Deepak Kumar
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Ashwani Kumar
- Department of Nutrition Biology, Central University of Haryana, Mahendergarh, Haryana, India
| | - Vibhav Gautam
- Centre of Experimental Medicine and Surgery, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - Ashok K Yadav
- Centre for Molecular Biology, Central University of Jammu, Samba, Jammu and Kashmir (UT), India
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5
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Almuraikhy S, Doudin A, Domling A, Althani AAJF, Elrayess MA. Molecular regulators of exercise-mediated insulin sensitivity in non-obese individuals. J Cell Mol Med 2024; 28:e18015. [PMID: 37938877 PMCID: PMC10805515 DOI: 10.1111/jcmm.18015] [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: 03/08/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 11/10/2023] Open
Abstract
Insulin resistance is a significant contributor to the development of type 2 diabetes (T2D) and is associated with obesity, physical inactivity, and low maximal oxygen uptake. While intense and prolonged exercise may have negative effects, physical activity can have a positive influence on cellular metabolism and the immune system. Moderate exercise has been shown to reduce oxidative stress and improve antioxidant status, whereas intense exercise can increase oxidative stress in the short term. The impact of exercise on pro-inflammatory cytokine production is complex and varies depending on intensity and duration. Exercise can also counteract the harmful effects of ageing and inflamm-ageing. This review aims to examine the molecular pathways altered by exercise in non-obese individuals at higher risk of developing T2D, including glucose utilization, lipid metabolism, mitochondrial function, inflammation and oxidative stress, with the potential to improve insulin sensitivity. The focus is on understanding the potential benefits of exercise for improving insulin sensitivity and providing insights for future targeted interventions before onset of disease.
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Affiliation(s)
- Shamma Almuraikhy
- Biomedical Research CenterQatar UniversityDohaQatar
- Groningen Research Institute of Pharmacy, Drug DesignGroningen UniversityGroningenThe Netherlands
| | - Asmaa Doudin
- Biomedical Research CenterQatar UniversityDohaQatar
| | - Alexander Domling
- Groningen Research Institute of Pharmacy, Drug DesignGroningen UniversityGroningenThe Netherlands
| | - Asmaa Ali J. F. Althani
- Biomedical Research CenterQatar UniversityDohaQatar
- Department of Biomedical Sciences, College of Health Science, QU HealthQatar UniversityDohaQatar
| | - Mohamed A. Elrayess
- Biomedical Research CenterQatar UniversityDohaQatar
- College of Pharmacy, QU HealthQatar UniversityDohaQatar
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Li M, Li L, Lu L, Xu X, Hu J, Peng JB. Anti-α-Glucosidase, SAR Analysis, and Mechanism Investigation of Indolo[1,2-b]isoquinoline Derivatives. Molecules 2023; 28:5282. [PMID: 37446942 DOI: 10.3390/molecules28135282] [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: 04/19/2023] [Revised: 06/25/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
To find potential α-glucosidase inhibitors, indolo[1,2-b]isoquinoline derivatives (1-20) were screened for their α-glucosidase inhibitory effects. All derivatives presented potential α-glucosidase inhibitory effects with IC50 values of 3.44 ± 0.36~41.24 ± 0.26 μM compared to the positive control acarbose (IC50 value: 640.57 ± 5.13 μM). In particular, compound 11 displayed the strongest anti-α-glucosidase activity, being ~186 times stronger than acarbose. Kinetic studies found that compounds 9, 11, 13, 18, and 19 were all reversible mix-type inhibitors. The 3D fluorescence spectra and CD spectra results revealed that the interaction between compounds 9, 11, 13, 18, and 19 and α-glucosidase changed the conformational changes of α-glucosidase. Molecular docking and molecular dynamics simulation results indicated the interaction between compounds and α-glucosidase. In addition, cell cytotoxicity and drug-like properties of compound 11 were also investigated.
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Affiliation(s)
- Mengyue Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Lin Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Li Lu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Xuetao Xu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Jinhui Hu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
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7
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Chen S, Xi M, Gao F, Li M, Dong T, Geng Z, Liu C, Huang F, Wang J, Li X, Wei P, Miao F. Evaluation of mulberry leaves’ hypoglycemic properties and hypoglycemic mechanisms. Front Pharmacol 2023; 14:1045309. [PMID: 37089923 PMCID: PMC10117911 DOI: 10.3389/fphar.2023.1045309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 03/31/2023] [Indexed: 04/08/2023] Open
Abstract
The effectiveness of herbal medicine in treating diabetes has grown in recent years, but the precise mechanism by which it does so is still unclear to both medical professionals and diabetics. In traditional Chinese medicine, mulberry leaf is used to treat inflammation, colds, and antiviral illnesses. Mulberry leaves are one of the herbs with many medicinal applications, and as mulberry leaf study grows, there is mounting evidence that these leaves also have potent anti-diabetic properties. The direct role of mulberry leaf as a natural remedy in the treatment of diabetes has been proven in several studies and clinical trials. However, because mulberry leaf is a more potent remedy for diabetes, a deeper understanding of how it works is required. The bioactive compounds flavonoids, alkaloids, polysaccharides, polyphenols, volatile oils, sterols, amino acids, and a variety of inorganic trace elements and vitamins, among others, have been found to be abundant in mulberry leaves. Among these compounds, flavonoids, alkaloids, polysaccharides, and polyphenols have a stronger link to diabetes. Of course, trace minerals and vitamins also contribute to blood sugar regulation. Inhibiting alpha glucosidase activity in the intestine, regulating lipid metabolism in the body, protecting pancreatic -cells, lowering insulin resistance, accelerating glucose uptake by target tissues, and improving oxidative stress levels in the body are some of the main therapeutic properties mentioned above. These mechanisms can effectively regulate blood glucose levels. The therapeutic effects of the bioactive compounds found in mulberry leaves on diabetes mellitus and their associated molecular mechanisms are the main topics of this paper’s overview of the state of the art in mulberry leaf research for the treatment of diabetes mellitus.
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Affiliation(s)
- Sikai Chen
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Miaomiao Xi
- The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
- Xi’an TANK Medicinal Biology Institute, Xi’an, China
| | - Feng Gao
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Min Li
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - TaiWei Dong
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Zhixin Geng
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Chunyu Liu
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Fengyu Huang
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Jing Wang
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Xingyu Li
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Peifeng Wei
- Shaanxi University of Chinese Medicine, Xianyang, China
- The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
- *Correspondence: Peifeng Wei, ; Feng Miao,
| | - Feng Miao
- The Second Affiliated Hospital of Shaanxi University of Chinese Medicine, Xianyang, China
- *Correspondence: Peifeng Wei, ; Feng Miao,
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8
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Dreher SI, Irmler M, Pivovarova-Ramich O, Kessler K, Jürchott K, Sticht C, Fritsche L, Schneeweiss P, Machann J, Pfeiffer AFH, Hrabě de Angelis M, Beckers J, Birkenfeld AL, Peter A, Niess AM, Weigert C, Moller A. Acute and long-term exercise adaptation of adipose tissue and skeletal muscle in humans: a matched transcriptomics approach after 8-week training-intervention. Int J Obes (Lond) 2023; 47:313-324. [PMID: 36774413 PMCID: PMC10113153 DOI: 10.1038/s41366-023-01271-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 01/31/2023] [Accepted: 01/31/2023] [Indexed: 02/13/2023]
Abstract
BACKGROUND Exercise exerts many health benefits by directly inducing molecular alterations in physically utilized skeletal muscle. Molecular adaptations of subcutaneous adipose tissue (SCAT) might also contribute to the prevention of metabolic diseases. AIM To characterize the response of human SCAT based on changes in transcripts and mitochondrial respiration to acute and repeated bouts of exercise in comparison to skeletal muscle. METHODS Sedentary participants (27 ± 4 yrs) with overweight or obesity underwent 8-week supervised endurance exercise 3×1h/week at 80% VO2peak. Before, 60 min after the first and last exercise bout and 5 days post intervention, biopsies were taken for transcriptomic analyses and high-resolution respirometry (n = 14, 8 female/6 male). RESULTS In SCAT, we found 37 acutely regulated transcripts (FC > 1.2, FDR < 10%) after the first exercise bout compared to 394, respectively, in skeletal muscle. Regulation of only 5 transcripts overlapped between tissues highlighting their differential response. Upstream and enrichment analyses revealed reduced transcripts of lipid uptake, storage and lipogenesis directly after exercise in SCAT and point to β-adrenergic regulation as potential major driver. The data also suggest an exercise-induced modulation of the circadian clock in SCAT. Neither term was associated with transcriptomic changes in skeletal muscle. No evidence for beigeing/browning was found in SCAT along with unchanged respiration. CONCLUSIONS Adipose tissue responds completely distinct from adaptations of skeletal muscle to exercise. The acute and repeated reduction in transcripts of lipid storage and lipogenesis, interconnected with a modulated circadian rhythm, can counteract metabolic syndrome progression toward diabetes.
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Affiliation(s)
- Simon I Dreher
- Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, 72076, Tübingen, Germany
| | - Martin Irmler
- Institute of Experimental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany
| | - Olga Pivovarova-Ramich
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558, Nuthetal, Potsdam, Germany
- Research Group Molecular Nutritional Medicine, German Institute of Human Nutrition Potsdam-Rehbruecke, 14558, Nuthetal, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, 12203, Berlin, Germany
| | - Katharina Kessler
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558, Nuthetal, Potsdam, Germany
| | - Karsten Jürchott
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), 13353, Berlin, Germany
| | - Carsten Sticht
- Next Generation Sequencing Core Facility, Medical Faculty Mannheim, Heidelberg University, 68167, Mannheim, Germany
| | - Louise Fritsche
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
| | - Patrick Schneeweiss
- Sports Medicine, University Hospital Tübingen, 72076, Tübingen, Germany
- Interfaculty Research Institute for Sport and Physical Activity, University of Tübingen, Tübingen, Germany
| | - Jürgen Machann
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
- Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, 72076, Tübingen, Germany
| | - Andreas F H Pfeiffer
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Department of Clinical Nutrition, German Institute of Human Nutrition Potsdam-Rehbruecke (DIfE), 14558, Nuthetal, Potsdam, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Endocrinology, Diabetes and Nutrition, Campus Benjamin Franklin, 12203, Berlin, Germany
| | - Martin Hrabě de Angelis
- Institute of Experimental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Chair of Experimental Genetics, Technical University of Munich, 85354, Freising, Germany
| | - Johannes Beckers
- Institute of Experimental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764, Neuherberg, Germany
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Chair of Experimental Genetics, Technical University of Munich, 85354, Freising, Germany
| | - Andreas L Birkenfeld
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
- Department of Internal Medicine IV, University Hospital Tübingen, 72076, Tübingen, Germany
| | - Andreas Peter
- Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, 72076, Tübingen, Germany
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
| | - Andreas M Niess
- Sports Medicine, University Hospital Tübingen, 72076, Tübingen, Germany
- Interfaculty Research Institute for Sport and Physical Activity, University of Tübingen, Tübingen, Germany
| | - Cora Weigert
- Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, 72076, Tübingen, Germany.
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany.
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany.
| | - Anja Moller
- German Center for Diabetes Research (DZD), 85784, Neuherberg, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München, University of Tübingen, Tübingen, Germany
- Department of Internal Medicine IV, University Hospital Tübingen, 72076, Tübingen, Germany
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9
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Guo C, Deshpande M, Niu Y, Kachwala I, Flores-Bellver M, Megarity H, Nuse T, Babapoor-Farrokhran S, Ramada M, Sanchez J, Inamdar N, Johnson TV, Canto-Soler MV, Montaner S, Sodhi A. HIF-1α accumulation in response to transient hypoglycemia may worsen diabetic eye disease. Cell Rep 2023; 42:111976. [PMID: 36640318 PMCID: PMC9960808 DOI: 10.1016/j.celrep.2022.111976] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 10/16/2022] [Accepted: 12/23/2022] [Indexed: 01/11/2023] Open
Abstract
Tight glycemic control (TGC), the cornerstone of diabetic management, reduces the incidence and progression of diabetic microvascular disease. However, TGC can also lead to transient episodes of hypoglycemia, which have been associated with adverse outcomes in patients with diabetes. Here, we demonstrate that low glucose levels result in hypoxia-inducible factor (HIF)-1-dependent expression of the glucose transporter, Glut1, in retinal cells. Enhanced nuclear accumulation of HIF-1α was independent of its canonical post-translational stabilization but instead dependent on stimulation of its translation and nuclear localization. In the presence of hypoxia, this physiologic response to low glucose resulted in a marked increase in the secretion of the HIF-dependent vasoactive mediators that promote diabetic retinopathy. Our results provide a molecular explanation for how early glucose control, as well as glycemic variability (i.e., oscillating serum glucose levels), contributes to diabetic eye disease. These observations have important implications for optimizing glucose management in patients with diabetes.
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Affiliation(s)
- Chuanyu Guo
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Monika Deshpande
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Yueqi Niu
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Isha Kachwala
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Miguel Flores-Bellver
- CellSight Ocular Stem Cell and Regeneration Research Program, Department of Ophthalmology, Sue Anschutz-Rodgers Eye Center, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Haley Megarity
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Taylor Nuse
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | | | - Michael Ramada
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Jaron Sanchez
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Neelay Inamdar
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Thomas V Johnson
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Maria Valeria Canto-Soler
- CellSight Ocular Stem Cell and Regeneration Research Program, Department of Ophthalmology, Sue Anschutz-Rodgers Eye Center, University of Colorado School of Medicine, Aurora, CO 80045, USA
| | - Silvia Montaner
- Department of Oncology and Diagnostic Sciences, School of Dentistry, Greenebaum Cancer Center, University of Maryland, Baltimore, MD 21201, USA
| | - Akrit Sodhi
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
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10
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Two Distinct Groups Are Shown to Be at Risk of Diabetes by Means of a Cluster Analysis of Four Variables. J Clin Med 2023; 12:jcm12030810. [PMID: 36769457 PMCID: PMC9918294 DOI: 10.3390/jcm12030810] [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: 12/26/2022] [Revised: 01/05/2023] [Accepted: 01/16/2023] [Indexed: 01/20/2023] Open
Abstract
Recent attempts to classify adult-onset diabetes using only six diabetes-related variables (GAD antibody, age at diagnosis, BMI, HbA1c, and homeostatic model assessment 2 estimates of b-cell function and insulin resistance (HOMA2-B and HOMA2-IR)) showed that diabetes can be classified into five clusters, of which four correspond to type 2 diabetes (T2DM). Here, we classified nondiabetic individuals to identify risk clusters for incident T2DM to facilitate the refinement of prevention strategies. Of the 1167 participants in the population-based Iwaki Health Promotion Project in 2014 (baseline), 868 nondiabetic individuals who attended at least once during 2015-2019 were included in a prospective study. A hierarchical cluster analysis was performed using four variables (BMI, HbA1c, and HOMA2 indices). Of the four clusters identified, cluster 1 (n = 103), labeled as "obese insulin resistant with sufficient compensatory insulin secretion", and cluster 2 (n = 136), labeled as "low insulin secretion", were found to be at risk of diabetes during the 5-year follow-up period: the multiple factor-adjusted HRs for clusters 1 and 2 were 14.7 and 53.1, respectively. Further, individuals in clusters 1and 2 could be accurately identified: the area under the ROC curves for clusters 1and 2 were 0.997 and 0.983, respectively. The risk of diabetes could be better assessed on the basis of the cluster that an individual belongs to.
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Prevalence and correlates of pre-diabetes in adults of mixed ethnicities in the South African population: A systematic review and meta-analysis. PLoS One 2022; 17:e0278347. [PMID: 36445923 PMCID: PMC9707763 DOI: 10.1371/journal.pone.0278347] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 11/14/2022] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION Pre-diabetes is a metabolic condition characterised by moderate glycaemic dysregulation and is a frontline risk factor for multiple metabolic complications such as type 2 diabetes mellitus. To the best of our knowledge, this will be the first systematic review and meta-analysis focusing on generating a comprehensive pooling of studies reporting on pre-diabetes prevalence in South Africa. Therefore, the review's purpose will be to screen and select reports that can be used to synthesise and provide the best estimate prevalence of pre-diabetes and its associated correlates in the South African population. METHODS AND ANALYSIS To determine the prevalence and correlates of pre-diabetes in South Africa, we searched PubMed, Web of Science, Google scholar and African Journal online for published or unpublished studies reporting the prevalence of pre-diabetes in South Africa starting from the year 2000 to 2020. Studies were assessed for eligibility by checking if they met the inclusion criteria. RESULTS & CONCLUSION The total number of studies deemed eligible is 13 and from these studies, an overall prevalence of pre-diabetes was reported to be 15,56% in the South African population. Hypertension, obesity and sedentary lifestyle were the common correlates recorded for the population of interest. Therefore, the review highlights the disturbingly high prevalence of pre-diabetes in South Africa and necessitates further investigations into the possible genetics, biochemical and hormonal changes in pre-diabetes. ETHICS AND DISSEMINATION The review will not require ethics clearance because non-identifiable data will be used. The review outcomes will give insight into the current burden that pre-diabetes has in South Africa. PROSPERO REGISTRATION NUMBER CRD42020182430.
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Li M, Lu X, Yang H, Yuan R, Yang Y, Tong R, Wu X. Development and assessment of novel machine learning models to predict medication non-adherence risks in type 2 diabetics. Front Public Health 2022; 10:1000622. [PMID: 36466490 PMCID: PMC9714465 DOI: 10.3389/fpubh.2022.1000622] [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: 07/22/2022] [Accepted: 10/24/2022] [Indexed: 11/18/2022] Open
Abstract
Background Medication adherence is the main determinant of effective management of type 2 diabetes, yet there is no gold standard method available to screen patients with high-risk non-adherence. Developing machine learning models to predict high-risk non-adherence in patients with T2D could optimize management. Methods This cross-sectional study was carried out on patients with T2D at the Sichuan Provincial People's Hospital from April 2018 to December 2019 who were examined for HbA1c on the day of the survey. Demographic and clinical characteristics were extracted from the questionnaire and electronic medical records. The sample was randomly divided into a training dataset and a test dataset with a radio of 8:2 after data preprocessing. Four imputing methods, five sampling methods, three screening methods, and 18 machine learning algorithms were used to groom data and develop and validate models. Bootstrapping was performed to generate the validation set for external validation and univariate analysis. Models were compared on the basis of predictive performance metrics. Finally, we validated the sample size on the best model. Results This study included 980 patients with T2D, of whom 184 (18.8%) were defined as medication non-adherence. The results indicated that the model used modified random forest as the imputation method, random under sampler as the sampling method, Boruta as the feature screening method and the ensemble algorithms and had the best performance. The area under the receiver operating characteristic curve (AUC), F1 score, and area under the precision-recall curve (AUPRC) of the best model, among a total of 1,080 trained models, were 0.8369, 0.7912, and 0.9574, respectively. Age, present fasting blood glucose (FBG) values, present HbA1c values, present random blood glucose (RBG) values, and body mass index (BMI) were the most significant contributors associated with risks of medication adherence. Conclusion We found that machine learning methods could be used to predict the risk of non-adherence in patients with T2D. The proposed model was well performed to identify patients with T2D with non-adherence and could help improve individualized T2D management.
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Affiliation(s)
- Mengting Li
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China
| | - Xiangyu Lu
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China,The Second Department of Hepatobiliary Surgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - HengBo Yang
- School of Pharmacy, Chengdu Medical College, Chengdu, China
| | - Rong Yuan
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China,Endocrine Department, Sichuan Provincial People's Hospital, Chengdu, China
| | - Yong Yang
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China,*Correspondence: Yong Yang
| | - Rongsheng Tong
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China,Rongsheng Tong
| | - Xingwei Wu
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China,Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu, China,Xingwei Wu
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Silva-Galindo G, Zapata-Torres M. Synthesis and Characterization of TiO 2 Thick Films for Glucose Sensing. BIOSENSORS 2022; 12:973. [PMID: 36354482 PMCID: PMC9687897 DOI: 10.3390/bios12110973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/25/2022] [Accepted: 11/01/2022] [Indexed: 06/16/2023]
Abstract
In this paper, we present the results of a non-enzymatic electrochemical glucose biosensor based on TiO2. An anatase working electrode was synthesized using the spin coating technique with the polymeric precursor method and dispersed TiO2 nanoparticles. Through scanning electron microscopy, it was observed that the electrode presented an irregular surface with clusters of nanoparticles. Electrochemical characterization indicated that the response was directly related to the morphology of the electrode. In the presence of glucose, the electrode exhibited adsorption behavior toward the molecules, enabling their recognition. The electrode was tested by employing PBS (phosphate buffer solutions) with varying pH values (from 4 to 9), demonstrating its electrochemical stability, even in the presence of glucose. Amperometric characterization was used to determine that the working region appeared from 0.2 mM to 2 mM, with a sensitivity of 4.46 μAcm-2mM-1 in PBS pH 7. The obtained results suggest that TiO2-based electrodes could be used for the detection of glucose concentration in sweat (0.277-1 mM) and saliva (0.23-1.77 mM).
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Adiponectin Intervention to Regulate Betatrophin Expression, Attenuate Insulin Resistance and Enhance Glucose Metabolism in Mice and Its Response to Exercise. Int J Mol Sci 2022; 23:ijms231810630. [PMID: 36142528 PMCID: PMC9505482 DOI: 10.3390/ijms231810630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/03/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
Aims: Adiponectin stimulates mitochondrial biogenesis through peroxisome proliferator-activated receptor-coactivator1α (PGC-1α), a major regulator of mitochondrial biogenesis, and its effect on the genesis of insulin resistance is organ-specific. Expressed predominantly in fat and liver tissues, betatrophin is primarily involved in lipid metabolism, and could be a putative therapeutic target in metabolic syndrome and T2D. We hypothesized that the adiponectin pathway may regulate the production and/or secretion of betatrophin in liver. We aimed to determine whether exercise and adiponectin affect betatrophin to improve insulin resistance in mice. Methods: To investigate this hypothesis, we used wild-type C57BL/6 mice subjected to a high-fat diet, an exercise regimen, and i.p. injection of recombinant mouse adiponectin (Acrp30), and adiponectin knockout (Adipoq−/−) mice (C57BL/6 background) subjected to i.p. injection of Acrp30. Results: In Adipoq–/– mice, betatrophin levels in the plasma and liver were upregulated. In mice, plasma and liver betatrophin levels were significantly upregulated following a high-fat diet. Exercise and i.p. Acrp30 downregulated betatrophin levels and increased adiponectin mRNA and protein expression in the plasma and liver. The trend of change in PGC-1α and betatrophin levels in the liver was consistent. Conclusions/interpretation: Exercise reverses pathogenic changes in adiponectin and betatrophin levels in insulin-resistant mice. Exercise increased adiponectin levels and reduced betatrophin levels. Furthermore, exercise reduced betatrophin levels via adiponectin, which modulated the LKB1/AMPK/PGC-1α signaling axis but was not solely dependent on it for exerting its effects.
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Luo X, Li RR, Li YQ, Yu HP, Yu HN, Jiang WG, Li YN. Reducing VEGFB expression regulates the balance of glucose and lipid metabolism in mice via VEGFR1. Mol Med Rep 2022; 26:285. [PMID: 35894135 PMCID: PMC9366154 DOI: 10.3892/mmr.2022.12801] [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: 02/25/2022] [Accepted: 06/17/2022] [Indexed: 11/05/2022] Open
Abstract
In recent years, studies have demonstrated that vascular endothelial growth factor B (VEGFB) can affect the metabolism of fatty acids and glucose, and it is expected to become a target for the diagnosis and treatment of metabolic diseases such as obesity and diabetes. At present, the specific mechanism that VEGFB regulates lipid and glucose metabolism balance is not completely understood. The present study used systemic VEGFB gene-knockout mice to investigate the effects of downregulation of the VEGFB gene on lipid metabolism and insulin secretion, and to explore the mechanism of the VEGFB pathway involved in the regulation of glucose and lipid metabolism. The morphological changes in the liver and pancreas of mice after VEGFB gene deletion were observed under a light microscope and a scanning electron microscope, and the effects of VEGFB gene deletion on lipid metabolism and blood glucose balance were detected by a serological technique. The detection indexes included total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol. Simultaneously, fasting blood glucose, glycosylated hemoglobin A1c (HbA1c), fasting insulin and glucagon were measured. Insulin sensitivity was assessed by using the insulin tolerance tests and glucose tolerance tests, and function of β-cell islets was evaluated by using the insulin resistance index (HOMA-IR) and pancreatic β-cell secretion index (HOMA-β). Τhe protein expression changes of vascular endothelial growth factor receptor 1 (VEGFR1) and vascular endothelial growth factor receptor 2 (VEGFR2) in mouse islets were detected by western blotting and reverse transcription-quantitative polymerase chain reaction (RT-qPCR) after the VEGFB gene was knocked down to analyze the mechanism of VEGFB that may be involved in glucose and lipid metabolism. It was observed that after VEGFB was knocked down, mouse hepatocytes exhibited steatosis and increased secretory vesicles in islet cells. The lipid metabolism indexes such as TG, TC and LDL increased significantly; however, the levels of FBS, postprandial blood glucose and HbA1c decreased, whereas the glucose tolerance increased. Serum insulin secretion increased and HOMA-IR decreased since VEGFB was knocked down. Western blotting and RT-qPCR results revealed that the expression levels of VEGFR1 and neuropilin-1 decreased after the VEGFB gene was knocked down, while the expression levels of VEGFA and VEGFR2 increased. The absence of VEGFB may be involved in the regulation of glucose and lipid metabolism in mice by activating the VEGFA/VEGFR2 signaling pathway. VEGFB is expected to become a new target for the treatment of metabolic diseases such as obesity and diabetes. At present, the mechanism of VEGFB involved in regulating lipid metabolism and glucose metabolism is not completely clear. It was identified that downregulating VEGFB improved lipid metabolism and insulin resistance. The role of VEGFB/VEGFR1 pathway and other family members in regulating glucose and lipid metabolism was detected, which provided a theoretical and experimental basis for VEGFB to affect the regulation of glucose and lipid metabolism balance.
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Affiliation(s)
- Xu Luo
- Department of Pathophysiology, School of Basic Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Rong-Rong Li
- Department of Pathophysiology, School of Basic Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Yu-Qi Li
- Department of Pathophysiology, School of Basic Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Han-Pu Yu
- Clinical Medicine, School of Basic Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Hai-Ning Yu
- Department of Stomatology Medicine, School of Oral Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Wen-Guo Jiang
- Department of Pharmacy, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
| | - Ya-Na Li
- Department of Pathophysiology, School of Basic Medicine, Binzhou Medical University, Yantai, Shandong 264003, P.R. China
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Cardillo JA, Rodrigues MW, Oliveira RC, Messias AMV, Jorge R. Pascal short-pulse plus subthreshold endpoint management laser therapy for diabetic macular edema: the "sandwich technique". Int J Retina Vitreous 2022; 8:32. [PMID: 35655248 PMCID: PMC9161489 DOI: 10.1186/s40942-022-00381-5] [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: 06/28/2021] [Accepted: 05/01/2022] [Indexed: 11/25/2022] Open
Abstract
Background Diabetic macular edema (DME) is the main cause of visual loss in diabetic patients. Despite the use of anti-VEGF therapy as first-line treatment, there are many patients whose response to treatment is poor or transient at best. Sophisticated laser techniques have emerged aiming at low-intensity retinal damage, avoiding excessive heat that causes tissue necrosis and related collateral effects. Objective To evaluate the effect of combined sublethal laser modalities from short-pulse duration (SPD) with endpoint management (EpM) subthreshold laser [named the “sandwich technique” (SWiT)] on central subfield thickness (CST) and best-corrected visual acuity (BCVA) in patients with DME. Material and methods In this consecutive retrospective study, 37 patients (37 eyes) with center-involved (CI) DME were treated with SWiT laser therapy from April 2017 to June 2021. The technique consisted of a mean number of 200 (range number 50–400) SPD laser burns OCT-guided thickened area performed on the juxta- and perifoveal area 500 µm away from the foveal center, overlapping with a mean number of 1000 (range number 800–1200) EpM laser burns focused on 6 mm macular diameter area but saving 300 µm toward the foveal center. All patients underwent ophthalmological evaluations, including BCVA and CST measurement by spectral-domain optical coherence tomography (SD-OCT), before and after SWiT laser therapy. The mean follow-up time was 19.2 months (range 2–60 months). Results Thirty-five out of 37 cases showed an improvement in CST and BCVA following treatment. At baseline, mean CST (µm) ± standard error (SE) and mean BCVA (logMAR) ± SE was 456.95 ± 37.00 and 0.71 ± 0.29, respectively. After a mean follow-up of 19.2 months, mean CST (µm) ± SE and BCVA (logMAR) ± SE were 272.09 ± 9.10 (p < 0.0001) and 0.54 ± 0.26 (p = 0.003), respectively. A statistically significant reduction in CST and improvement in BCVA was noted after laser therapy application. The anti-VEGF injection frequency was reduced during the mean 19.2 months of the study period. Conclusions The novel “sandwich” laser therapy aid reduced CST and improved BCVA in this retrospective case series. Further prospective studies are warranted. Supplementary Information The online version contains supplementary material available at 10.1186/s40942-022-00381-5.
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Affiliation(s)
- J A Cardillo
- Department of Ophthalmology, CRESEP- Eye Hospital public service, Araraquara, SP, Brazil
| | - M W Rodrigues
- Department of Ophthalmology, Ribeirão Preto Medical School, University of São Paulo, 3900, Bandeirantes Avenue, Ribeirão Preto, SP, 14049-900, Brazil.
| | - R C Oliveira
- Department of Ophthalmology, CRESEP- Eye Hospital public service, Araraquara, SP, Brazil
| | - A M V Messias
- Department of Ophthalmology, Ribeirão Preto Medical School, University of São Paulo, 3900, Bandeirantes Avenue, Ribeirão Preto, SP, 14049-900, Brazil
| | - R Jorge
- Department of Ophthalmology, Ribeirão Preto Medical School, University of São Paulo, 3900, Bandeirantes Avenue, Ribeirão Preto, SP, 14049-900, Brazil.
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Saldana SL, Guarnaccia CA. Comparing cognitive function in white Mexican & non-Hispanic white Americans with/without diabetes. J Diabetes Metab Disord 2022; 21:599-605. [PMID: 35673415 PMCID: PMC9167396 DOI: 10.1007/s40200-022-01022-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 03/03/2022] [Indexed: 11/29/2022]
Abstract
Objectives An association between type-2 diabetes mellitus and cognitive decline is well known. Additionally, type 2 diabetes is known to be more physically burdensome for minorities. However, the combined impact of both ethnicity and diabetes on cognition is still not clear. Methods Data from the 2014 Health and Retirement Study (HRS) was used in this study to compare the cognitive functioning of non-Hispanic White (n = 10,658) and White Mexican/Mexican American (n = 847) individuals, age 50+ years, with or without type 2 diabetes. Cognitive functioning was measured by a composite of three constructs (serial 7 s, immediate, delayed recall). Ethnic groups and diabetes status were examined concerning cognitive functioning. Results A Multivariate Analysis of Covariance (MANCOVA) indicated significant main effects for ethnicity (F(3,11,496) = 11.15, p < .001) and diabetes status (F(3,11,496) = 3.15, p < .024), with Mexican Americans and those with diabetes exhibiting worse cognitive performance than non-Hispanic Whites and individuals without diabetes. There were significant effects for all covariates. A step-wise multiple regression indicated that education, age, depression, ethnicity and diabetes status accounted for a combined 28.4% variance in the cognitive performance composite. Conclusions Results found that education contributes significantly to variation of cognitive performance. The impact of education could be related to various possibilities. However, the impact of health literacy is a likely component, which has a positive relationship with level of education. Individuals with higher health literacy are more conscientious in health actions (e.g., exhibit regular self-care, glucose monitoring, and foot care). Therefore, the study results indicate it is likely that the duration of diabetes, and diabetes management (e.g., effective control of blood glucose, blood pressure, and lipids), contributing to cognitive decline. Cognitive screening at routine doctor visits is encouraged, particularly for Mexican/Mexican Americans, as the current study found support for ethnic minority vulnerability to the negative impacts of diabetes.
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Bredemolic acid restores glucose utilization and attenuates oxidative stress in palmitic acid-induced insulin-resistant C2C12 cells. Endocr Regul 2022; 56:126-133. [PMID: 35489052 DOI: 10.2478/enr-2022-0014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Objective. Due to insulin resistance and oxidative stress that are associated with type 2 diabetes mellitus (T2DM), T2DM has become a prevalent metabolic disorder that presents various side effects. However, alternative antidiabetic treatment has commonly been used in treating diabetes mellitus in diabetic patients. In our previous studies, bredemolic acid has been reported as an antidiabetic agent that improves glucose uptake, ameliorates insulin resistance, and oxidative stress in the liver, heart, kidney, and skeletal muscle of prediabetic rats. However, these effects have not been validated in vitro. Therefore, this study was aimed to investigate the effects of bredemolic acid on insulin-mediated glucose utilization, lipid peroxidation, and the total antioxidant capacity (TOAC) in palmitic acid-induced insulin-resistant C2C12 skeletal muscle cells in vitro. Methods. Insulin resistance was induced in the skeletal muscle cells after 4 h of exposure to palmitic acid (0.5 mmol/l). Different cell groups were incubated in culture media DMEM supplemented with fetal calf serum (10%), penicillin/streptomycin (1%), and L-glutamine (1%) and then treated with either insulin (4 µg/ml) or bredemolic acid (12.5 mmol/l) or with both. Thereafter, the cells were seeded in 24- or 96-well plates for determination of the cell viability, glucose utilization, glycogen formation, and antioxidant capacity. Results. The results showed that bredemolic acid significantly improved TOAC and promoted glucose utilization via attenuation of lipid peroxidation and increased glycogen formation in the insulin-resistant cells, respectively. Conclusion. This study showed that bredemolic acid restored the insulin resistance through improved glucose utilization, glycogen formation, and TOAC in the skeletal muscle cells.
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Chen R, Lai X, Xiang L, Li Q, Sun L, Lai Z, Li Z, Zhang W, Wen S, Cao J, Sun S. Aged green tea reduces high-fat diet-induced fat accumulation and inflammation via activating the AMP-activated protein kinase signaling pathway. Food Nutr Res 2022; 66:7923. [PMID: 35382381 PMCID: PMC8941417 DOI: 10.29219/fnr.v66.7923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 11/30/2021] [Accepted: 01/04/2022] [Indexed: 02/06/2023] Open
Abstract
Background Obesity is a global public health concern and increases the risk of metabolic syndrome and other diseases. The anti-obesity effects of various plant-derived bioactive compounds, such as tea extracts, are well-established. The mechanisms underlying the anti-obesity activity of Jinxuan green tea (JXGT) from different storage years are still unclear. Objective The aim of this study was to evaluate the effects of JXGTs from three different years on the high fat diet (HFD)-fed mouse model. Design The mice were divided into six groups, the control group received normal diet and the obese model group received HFD. We analyzed the effects of JXGTs from 2005, 2008, and 2016 on HFD-fed obese mice over a period of 7 weeks. Results The JXGTs reduced the body weight of the obese mice, and also alleviated fat accumulation and hepatic steatosis. Mechanistically, JXGTs increased the phosphorylation of AMP-activated protein kinase (p-AMPK)/AMP-activated protein kinase (AMPK) ratio, up-regulated carnitine acyl transferase 1A (CPT-1A), and down-regulated fatty acid synthase (FAS), Glycogen synthase kinase-3beta (GSK-3β), Peroxisome proliferator-activated receptor-gamma co-activator-1alpha (PGC-1α), Interleukin 6 (IL-6), and Tumour necrosis factor alpha (TNFα). Thus, JXGTs can alleviate HFD-induced obesity by inhibiting lipid biosynthesis and inflammation, thereby promoting fatty acid oxidation via the AMPK pathway. Discussion The anti-obesity effect of three aged JXGTs were similar. However, JXGT2016 exhibited a more potent activation of AMPK, and JXGT2005 and JXGT2008 exhibited a more potent inhibiting glycogen synthase and inflammation effect. Furthermore, the polyphenol (–)-epicatechin (EC) showed the strongest positive correlation with the anti-obesity effect of JXGT. Conclusions These findings demonstrate that JXGT treatment has a potential protection on HFD-induced obesity mice via activating the AMPK/CPT-1A and down-regulating FAS/GSK-3β/PGC-1α and IL-6/TNFα. Our study results also revealed that different storage time would not affect the anti-obesity and anti-inflammation effect of JXGT. Graphical abstract
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Affiliation(s)
- Ruohong Chen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Xingfei Lai
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Limin Xiang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Qiuhua Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Lingli Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Zhaoxiang Lai
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Zhigang Li
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Wenji Zhang
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Shuai Wen
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Junxi Cao
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
| | - Shili Sun
- Tea Research Institute, Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation and Utilization, Guangzhou, China
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Akinnuga AM, Siboto A, Khumalo B, Sibiya NH, Ngubane P, Khathi A. Evaluation of the effects of bredemolic acid on selected markers of glucose homeostasis in diet-induced prediabetic rats. Arch Physiol Biochem 2022; 128:306-312. [PMID: 31686537 DOI: 10.1080/13813455.2019.1680697] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
CONTEXT Pentacyclic triterpenes (such as maslinic acid) are natural anti-diabetic agents that ameliorate glucose metabolism in diet-induced prediabetes. However, the effects of bredemolic acid (BA), maslinic acid isomer, is yet unknown in prediabetic (PD) conditions. OBJECTIVES To investigate the effects of BA on some glucose homeostasis parameters in high-fat high-carbohydrate (HFHC) diet-induced PD rats. METHODS Thirty-six (36) male rats (150-180 g) were divided into two groups, the normal diet (ND) non-prediabetic, NPD (n = 6) and the HFHC diet PD groups (n = 30). The PD animals were further sub-divided into five groups (n = 6) where they were treated with BA for 12 weeks while monitoring changes in blood glucose, caloric intake, and body weight. RESULTS Diet-induced prediabetes resulted in increased body weight, caloric intake, glycated haemoglobin, and glucose tolerance. BA treatment ameliorated glucose tolerance, lowered plasma insulin and increased expression of glucose transporter 4 (GLUT 4) in rats. CONCLUSIONS BA administration restored glucose homeostasis in diet-induced prediabetes regardless of diet intervention.
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Affiliation(s)
- Akinjide Moses Akinnuga
- Department of Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Westville, South Africa
| | - Angezwa Siboto
- Department of Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Westville, South Africa
| | - Bongiwe Khumalo
- Department of Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Westville, South Africa
| | | | - Phikelelani Ngubane
- Department of Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Westville, South Africa
| | - Andile Khathi
- Department of Physiology, School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Westville, South Africa
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21
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Singsalasang A, Nguanjairak R, Salawonglak T. Health literacy and behaviors influencing blood sugar level control among type 2 diabetes patients in primary care units, Thailand: A cross-sectional study. F1000Res 2022; 11:332. [PMID: 38124778 PMCID: PMC10730987 DOI: 10.12688/f1000research.74225.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/08/2022] [Indexed: 12/23/2023] Open
Abstract
Background: Type 2 Diabetes Mellitus (T2DM) remains a significant cause of death globally. In addition, T2DM is among the top five chronic diseases which leads to mortality in the Thai population. Patients with T2DM need a wide self-management protocol. However, patients with low health literacy experience difficulty in recognizing health-related information and have difficulties in expressing their status to health care providers, resulting in poor self-management which results in worsening of the health condition. This study aimed to identify the health literacy among patients with type 2 diabetes to determine its association between factors with blood sugar level control in the patients who are treated in primary care units. Methods: A total of 605 subjects were randomly selected from four districts of Nakhon Ratchasima Province, Northeastern Thailand. Data were collected using a structured questionnaire and a review of their charts. A descriptive statistical analysis was used to describe characteristics of the subjects. In addition, multiple logistic regression was used for the association to estimate effect sizes in terms of an odds ratio with the 95% confidence interval. Results: Of the total 605 respondents, 90.90% of the subjects had a sufficient level of health literacy about diabetes. The present study found the subjects who had sufficient health literacy were significantly associated with blood sugar level control (Adjusted Odds Ratio, (AOR)=2.27; 95% CI: 1.10-4.74; p =0.026). A strongly significant association with blood sugar level control was found with diet behaviors (AOR = 9.71; 95% CI: 5.98-15.77; p<0.001) and exercise behaviors (AOR = 14.50; 95% CI: 8.66-24.27; p<0.001). Conclusions: Health literacy on the changing health related behaviors among the T2DM patients is significantly associated with controlling blood sugar level. Hence, health practitioners should enhance the health literacy on self-care among T2DM patients which will help to control T2DM in an effective manner.
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Affiliation(s)
- Atthawit Singsalasang
- Faculty of Public Health, Nakhon Ratchasima Rajabhat University, 340 Sura Narai Rd, Tambon Nai Mueang, Nakhon Ratchasima, 30000, Thailand
| | - Rachanon Nguanjairak
- Faculty of Public Health, Nakhon Ratchasima Rajabhat University, 340 Sura Narai Rd, Tambon Nai Mueang, Nakhon Ratchasima, 30000, Thailand
| | - Tongtip Salawonglak
- Faculty of Public Health, Nakhon Ratchasima Rajabhat University, 340 Sura Narai Rd, Tambon Nai Mueang, Nakhon Ratchasima, 30000, Thailand
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22
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Silk Fibroin-Based Therapeutics for Impaired Wound Healing. Pharmaceutics 2022; 14:pharmaceutics14030651. [PMID: 35336024 PMCID: PMC8949428 DOI: 10.3390/pharmaceutics14030651] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/04/2022] [Accepted: 03/11/2022] [Indexed: 02/06/2023] Open
Abstract
Impaired wound healing can lead to local hypoxia or tissue necrosis and ultimately result in amputation or even death. Various factors can influence the wound healing environment, including bacterial or fungal infections, different disease states, desiccation, edema, and even systemic viral infections such as COVID-19. Silk fibroin, the fibrous structural-protein component in silk, has emerged as a promising treatment for these impaired processes by promoting functional tissue regeneration. Silk fibroin’s dynamic properties allow for customizable nanoarchitectures, which can be tailored for effectively treating several wound healing impairments. Different forms of silk fibroin include nanoparticles, biosensors, tissue scaffolds, wound dressings, and novel drug-delivery systems. Silk fibroin can be combined with other biomaterials, such as chitosan or microRNA-bound cerium oxide nanoparticles (CNP), to have a synergistic effect on improving impaired wound healing. This review focuses on the different applications of silk-fibroin-based nanotechnology in improving the wound healing process; here we discuss silk fibroin as a tissue scaffold, topical solution, biosensor, and nanoparticle.
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23
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Pikkemaat M, Larsson Lönn S, Bennet L. Insulin action and secretion independent of traditional risk factors predict new-onset type 2 diabetes in Iraqi and Swedish born citizens - The MEDIM cohort study. Diabetes Metab Res Rev 2022; 38:e3509. [PMID: 34704668 DOI: 10.1002/dmrr.3509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 11/06/2022]
Abstract
AIMS Our aim was to study the incidence of type 2 diabetes in a population-based cohort of Swedish and Iraqi born individuals, focussing on traditional risk factors, insulin action, insulin secretion and ethnicity. MATERIALS AND METHODS The cohort consisted of 1164 Iraqi and 693 Swedish-born citizens. We investigated the association between new-onset type 2 diabetes and the predictors including lifestyle factors, metabolic risk markers, country of birth, insulin sensitivity and secretion assessed by Matsuda index with Cox regression. RESULTS Eighty-nine individuals were diagnosed with type 2 diabetes with a mean follow-up of 7.5 years. Both lower insulin sensitivity (ISI, HR 0.02 [0.01-0.08]) as well as insulin secretion (CIR, HR 0.13 [0.07-0.24]) at baseline predicted type 2 diabetes onset, independent of traditional risk factors. Our results were not modified by country of birth. Regarding traditional risk factors, WHR (1.05 [1.00-1.09]), blood glucose (3.27 [2.35-4.55]), LDL/HDL (1.46 [1.20-1.78]) and diastolic blood pressure (1.04 [1.00-1.07]) predicted diabetes incidence in the full model. CONCLUSIONS Both impaired insulin sensitivity index and corrected insulin response predicted type 2 diabetes onset, independent of traditional risk factors. We conclude that insulin secretion and action might be useful additional predictors for type 2 diabetes in populations of European and Middle Eastern ethnicities.
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Affiliation(s)
- Miriam Pikkemaat
- Center for Primary Health Care Research, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Sara Larsson Lönn
- Center for Primary Health Care Research, Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - Louise Bennet
- Department of Family Medicine, Lund University, Malmö, Sweden
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
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24
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Recent Updates on Development of Protein-Tyrosine Phosphatase 1B Inhibitors for Treatment of Diabetes, Obesity and Related Disorders. Bioorg Chem 2022; 121:105626. [DOI: 10.1016/j.bioorg.2022.105626] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/19/2021] [Accepted: 01/13/2022] [Indexed: 01/30/2023]
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25
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Im JHB, Jin YP, Chow R, Yan P. Prevalence of diabetic macular edema based on optical coherence tomography in people with diabetes: A systematic review and meta-analysis. Surv Ophthalmol 2022; 67:1244-1251. [PMID: 35093404 DOI: 10.1016/j.survophthal.2022.01.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 12/01/2022]
Abstract
Diabetic macular edema (DME) is a leading cause of vision loss among people with diabetes. Optical coherence tomography (OCT) allows for accurate assessment and early detection of DME. Meta-analyses on DME prevalence diagnosed with OCT are lacking. We performed a meta-analysis to assess the global prevalence of OCT-diagnosed DME. We searched five electronic databases (EMBASE, CINAHL, Web of Science, Scopus, and MEDLINE) on May 29, 2020 and updated the search on March 19 and June 22, 2021. The quality of retrieved studies was evaluated using the Joanna Briggs Institute Checklist for Prevalence Studies. A random-effects model was used to pool prevalence estimates. Countries were classified into low-to-middle-income and high-income countries using World Bank data for subgroup analyses. Seven studies were included in this meta-analysis. The pooled prevalence of DME was 5.47% (95% CI: 3.66%-7.62%) overall, 5.81% (95% CI: 0.07%-18.51%) in low-to-middle-income countries and 5.14% (95% CI: 3.44%-7.15%) in high-income countries. We reported approximately 5.5% of people with diabetes have DME, with a statistically non-significantly lower prevalence in high-income countries versus low-to-middle-income countries. Given the global pandemic of diabetes, there is a need to inform physicians and educate people with diabetes regarding early detection and treatment of DME using OCT.
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Affiliation(s)
- James H B Im
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Ya-Ping Jin
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada; Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Canada
| | - Ronald Chow
- Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Peng Yan
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Canada; Kensington Vision and Research Centre, Toronto, Canada.
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26
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Freitas-Dias R, Lima TI, Costa-Junior JM, Gonçalves LM, Araujo HN, Paula FMM, Santos GJ, Branco RCS, Ou K, Kaestner KH, Silveira LR, Oliveira CAM, Boschero AC, Zoppi CC, Carneiro EM. Offspring from trained male mice inherit improved muscle mitochondrial function through PPAR co-repressor modulation. Life Sci 2021; 291:120239. [PMID: 34942163 DOI: 10.1016/j.lfs.2021.120239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 12/03/2021] [Accepted: 12/11/2021] [Indexed: 10/19/2022]
Abstract
Aim Investigate whether inheritance of improved skeletal muscle mitochondrial function and its association with glycemic control are multigenerational benefits of exercise. MAIN METHODS Male Swiss mice were subjected to 8 weeks of endurance training and mated with untrained females. KEY FINDINGS Trained fathers displayed typical endurance training-induced adaptations. Remarkably, offspring from trained fathers also exhibited higher endurance performance, mitochondrial oxygen consumption, glucose tolerance and insulin sensitivity. However, PGC-1α expression was not increased in the offspring. In the offspring, the expression of the co-repressor NCoR1 was reduced, increasing activation of PGC-1α target genes. These effects correlated with higher DNA methylation at the NCoR1 promoter in both, the sperm of trained fathers and in the skeletal muscle of their offspring. SIGNIFICANCE Higher skeletal muscle mitochondrial function is inherited by epigenetic de-activation of a key PGC-1α co-repressor.
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Affiliation(s)
- Ricardo Freitas-Dias
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil; Department of Physical Therapy, Laboratory of Exercise Physiology, University of Pernambuco, Petrolina, PE, Brazil
| | - Tanes I Lima
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Jose Maria Costa-Junior
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Luciana M Gonçalves
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Hygor N Araujo
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Flavia M M Paula
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Gustavo J Santos
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil; Department of Physiological Sciences, Center of Biological Sciences, Federal University of Santa Catarina (UFSC), Florianopolis, SC, Brazil
| | - Renato Chaves Souto Branco
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Kristy Ou
- Department of Genetics and Institute for Diabetes, Obesity and Metabolism, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Klaus H Kaestner
- Department of Genetics and Institute for Diabetes, Obesity and Metabolism, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Leonardo R Silveira
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Camila A M Oliveira
- Department of Biosciences, Federal University of Sao Paulo, Santos, SP, Brazil
| | - Antonio C Boschero
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Claudio C Zoppi
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil.
| | - Everardo M Carneiro
- Obesity and Comorbidities Research Center (OCRC), Department of Functional and Structural Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, SP, Brazil.
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27
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Nunes S, Viana SD, Preguiça I, Alves A, Fernandes R, Teodoro JS, Matos P, Figueirinha A, Salgueiro L, André A, Silva S, Jarak I, Carvalho RA, Cavadas C, Rolo AP, Palmeira CM, Pintado MM, Reis F. Blueberry Counteracts Prediabetes in a Hypercaloric Diet-Induced Rat Model and Rescues Hepatic Mitochondrial Bioenergetics. Nutrients 2021; 13:4192. [PMID: 34959746 PMCID: PMC8706913 DOI: 10.3390/nu13124192] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 12/11/2022] Open
Abstract
The paramount importance of a healthy diet in the prevention of type 2 diabetes is now well recognized. Blueberries (BBs) have been described as attractive functional fruits for this purpose. This study aimed to elucidate the cellular and molecular mechanisms pertaining to the protective impact of blueberry juice (BJ) on prediabetes. Using a hypercaloric diet-induced prediabetic rat model, we evaluated the effects of BJ on glucose, insulin, and lipid profiles; gut microbiota composition; intestinal barrier integrity; and metabolic endotoxemia, as well as on hepatic metabolic surrogates, including several related to mitochondria bioenergetics. BJ supplementation for 14 weeks counteracted diet-evoked metabolic deregulation, improving glucose tolerance, insulin sensitivity, and hypertriglyceridemia, along with systemic and hepatic antioxidant properties, without a significant impact on the gut microbiota composition and related mechanisms. In addition, BJ treatment effectively alleviated hepatic steatosis and mitochondrial dysfunction observed in the prediabetic animals, as suggested by the amelioration of bioenergetics parameters and key targets of inflammation, insulin signaling, ketogenesis, and fatty acids oxidation. In conclusion, the beneficial metabolic impact of BJ in prediabetes may be mainly explained by the rescue of hepatic mitochondrial bioenergetics. These findings pave the way to support the use of BJ in prediabetes to prevent diabetes and its complications.
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Affiliation(s)
- Sara Nunes
- Institute of Pharmacology & Experimental Therapeutics & Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (S.N.); (S.D.V.); (I.P.); (A.A.); (R.F.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal;
- Clinical Academic Center of Coimbra (CACC), 3004-504 Coimbra, Portugal
| | - Sofia D. Viana
- Institute of Pharmacology & Experimental Therapeutics & Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (S.N.); (S.D.V.); (I.P.); (A.A.); (R.F.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal;
- Clinical Academic Center of Coimbra (CACC), 3004-504 Coimbra, Portugal
- Polytechnic Institute of Coimbra, ESTESC-Coimbra Health School, Pharmacy/Biomedical Laboratory Sciences, 3046-854 Coimbra, Portugal;
| | - Inês Preguiça
- Institute of Pharmacology & Experimental Therapeutics & Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (S.N.); (S.D.V.); (I.P.); (A.A.); (R.F.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal;
- Clinical Academic Center of Coimbra (CACC), 3004-504 Coimbra, Portugal
| | - André Alves
- Institute of Pharmacology & Experimental Therapeutics & Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (S.N.); (S.D.V.); (I.P.); (A.A.); (R.F.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal;
- Clinical Academic Center of Coimbra (CACC), 3004-504 Coimbra, Portugal
| | - Rosa Fernandes
- Institute of Pharmacology & Experimental Therapeutics & Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (S.N.); (S.D.V.); (I.P.); (A.A.); (R.F.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal;
- Clinical Academic Center of Coimbra (CACC), 3004-504 Coimbra, Portugal
| | - João S. Teodoro
- Department of Life Sciences, Faculty of Science and Technology (FCTUC), University of Coimbra, 3000-456 Coimbra, Portugal; (J.S.T.); (R.A.C.); (A.P.R.); (C.M.P.)
- Center for Neurosciences and Cell Biology of Coimbra (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
| | - Patrícia Matos
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (P.M.); (A.F.); (L.S.)
- LAQV, REQUIMTE, Faculty of Pharmacy, University of Coimbra, 3000-456 Coimbra, Portugal
- CIEPQPF, Chemical Process Engineering and Forest Products Research Centre Research Center, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Artur Figueirinha
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (P.M.); (A.F.); (L.S.)
- LAQV, REQUIMTE, Faculty of Pharmacy, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Lígia Salgueiro
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (P.M.); (A.F.); (L.S.)
- CIEPQPF, Chemical Process Engineering and Forest Products Research Centre Research Center, University of Coimbra, 3000-456 Coimbra, Portugal
| | - Alexandra André
- Polytechnic Institute of Coimbra, ESTESC-Coimbra Health School, Pharmacy/Biomedical Laboratory Sciences, 3046-854 Coimbra, Portugal;
| | - Sara Silva
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (S.S.); (M.M.P.)
| | - Ivana Jarak
- Department of Microscopy, Laboratory of Cell Biology and Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, 4050-313 Porto, Portugal;
| | - Rui A. Carvalho
- Department of Life Sciences, Faculty of Science and Technology (FCTUC), University of Coimbra, 3000-456 Coimbra, Portugal; (J.S.T.); (R.A.C.); (A.P.R.); (C.M.P.)
- Associated Laboratory for Green Chemistry-Clean Technologies and Processes, REQUIMTE, Faculty of Sciences and Technology, University of Porto, 4050-313 Porto, Portugal
| | - Cláudia Cavadas
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal;
- Clinical Academic Center of Coimbra (CACC), 3004-504 Coimbra, Portugal
- Center for Neurosciences and Cell Biology of Coimbra (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal; (P.M.); (A.F.); (L.S.)
| | - Anabela P. Rolo
- Department of Life Sciences, Faculty of Science and Technology (FCTUC), University of Coimbra, 3000-456 Coimbra, Portugal; (J.S.T.); (R.A.C.); (A.P.R.); (C.M.P.)
- Center for Neurosciences and Cell Biology of Coimbra (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
| | - Carlos M. Palmeira
- Department of Life Sciences, Faculty of Science and Technology (FCTUC), University of Coimbra, 3000-456 Coimbra, Portugal; (J.S.T.); (R.A.C.); (A.P.R.); (C.M.P.)
- Center for Neurosciences and Cell Biology of Coimbra (CNC), University of Coimbra, 3004-504 Coimbra, Portugal
| | - Maria M. Pintado
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal; (S.S.); (M.M.P.)
| | - Flávio Reis
- Institute of Pharmacology & Experimental Therapeutics & Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal; (S.N.); (S.D.V.); (I.P.); (A.A.); (R.F.)
- Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, 3004-504 Coimbra, Portugal;
- Clinical Academic Center of Coimbra (CACC), 3004-504 Coimbra, Portugal
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Li Y, Shen H, Li Y, Bi M, Bi Y, Che X, Tian S, Liu Y. Sex-Specific Differences in the Associations Between Omega-6 Polyunsaturated Fatty Acids and Type 2 Diabetes in Chinese People. Front Nutr 2021; 8:739850. [PMID: 34746208 PMCID: PMC8568790 DOI: 10.3389/fnut.2021.739850] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/27/2021] [Indexed: 12/17/2022] Open
Abstract
Background: Some evidence indicates a potential beneficial effect of omega-6 polyunsaturated fatty acids (n-6 PUFAs) on type 2 diabetes mellitus (T2DM); however, the findings to date remains inconclusive and little is known about whether sex modifies these associations. Therefore, this study aimed to investigate potential sex-specific differences in this associations among Chinese adults. Methods: We conducted a cross-sectional study in an area of Dalian city, China; Chinese men and women who attended the Department of Clinical Nutrition and Metabolism between January and December 2020 were invited to participate in this study. All participants were assessed for basic demographic characteristics, fasting blood glucose, HbA1c, and other serum biomarkers and serum phospholipid FAs. Results: In total, 575 Chinese adult participants (270 men and 305 women) were included in the analysis. Hypertension and dyslipidaemia were more common among men than women, but there were no significant differences between the sexes in fatty acid composition, except for eicosadienoic acid (EA; 20:2n-6) and total monounsaturated fatty acids (MUFA). The age-adjusted OR for having T2DM in the highest quartile of arachidonic acid (20:4n-6) level was 0.47 (95% CI, 0.22, 0.98) in men, and this association remained consistently significant in the fully adjusted multivariate models. In contrast, no significant associations between n-6 PUFAs and T2DM risk were observed in women, regardless of model adjustment. Conclusions: In conclusion, these results demonstrate a notable sex-specific differences in the associations between n-6 PUFAs and T2DM. Higher n-6 PUFA status may be protective against the risk of T2DM in men.
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Affiliation(s)
- Yingying Li
- Department of Clinical Nutrition and Metabolism, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Hui Shen
- Department of Clinical Nutrition and Metabolism, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Yike Li
- Department of Clinical Nutrition and Metabolism, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Mei Bi
- Department of Clinical Nutrition and Metabolism, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Yanhong Bi
- Department of Research, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Xiaoyu Che
- Department of Research, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Simiao Tian
- Department of Research, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Yazhuo Liu
- Department of Clinical Nutrition and Metabolism, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
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29
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Nourizadeh N, Jahani M, Jafarzadeh S. Auditory and Vestibular Assessment of Patients with Type Two Diabetes Mellitus: A Case-Control Study. IRANIAN JOURNAL OF OTORHINOLARYNGOLOGY 2021; 33:263-269. [PMID: 34692573 PMCID: PMC8507949 DOI: 10.22038/ijorl.2021.55334.2899] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 07/24/2021] [Indexed: 11/06/2022]
Abstract
Introduction Type two diabetes mellitus may relate to auditory and vestibular dysfunction. This relationship was frequently observed in elders. The present study aimed to evaluate the auditory and vestibular function of diabetic patients and compare the results with those of a healthy adult control group. Materials and Methods Patients were asked to complete demographic characteristics form. Moreover, fasting blood sugar, as well as hemoglobin A1C tests, were carried out on them. Both the patients and control group were evaluated using several auditory and vestibular tests including Pure Tone Audiometry (PTA), video Head Impulse Test (v-HIT), ocular Vestibular Evoked Myogenic Potential (o-VEMP), and cervical Vestibular Evoked Myogenic Potential (c-VEMP). Results The PTA showed a significant difference in some frequencies between the two groups. These differences were minimal in lower frequencies and become greater at 8000Hz. The v-HIT was abnormal for some patients and also showed a significant difference between the two groups. The o-VEMP and c-VEMP results were normal in most patients. Conclusion Based on the obtained results, auditory and vestibular dysfunctions are related to Diabetes. Patients with type two diabetes mellitus showed mild auditory and vestibular dysfunctions compared to the healthy control group.
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Affiliation(s)
- Navid Nourizadeh
- Sinus and Surgical Endoscopic Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Otolaryngology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mina Jahani
- Department of Otolaryngology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sadegh Jafarzadeh
- Sinus and Surgical Endoscopic Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Audiology, School of Paramedical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran
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TRIM46 contributes to high glucose-induced ferroptosis and cell growth inhibition in human retinal capillary endothelial cells by facilitating GPX4 ubiquitination. Exp Cell Res 2021; 407:112800. [PMID: 34487731 DOI: 10.1016/j.yexcr.2021.112800] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE Increased permeability of retinal capillary endothelial cells is a key feature in the progression of diabetic retinopathy (DR). Precisely why and how diabetes causes dysfunction in retinal capillary endothelial cells is not well understood, making it challenging to explore more advanced therapeutics. METHODS Cell proliferation was assessed by the Cell Counting Kit-8 assay. Ferroptosis was evaluated by measuring lipid reactive oxygen species levels by flow cytometry and determining malondialdehyde, superoxide dismutase, and glutathione peroxidase levels through biochemical assays. Western blot analysis and quantitative PCR were respectively used to check the expression of proteins and RNAs. Co-immunoprecipitation assays were used to confirm the interaction between TRIM46 and GPX4. RESULTS High glucose (HG, 25 mM glucose) significantly suppressed cell growth, which could be reversed by the ferroptosis inhibitor, ferrostatin-1. HG treatment time-dependently induced ferroptosis in human retinal capillary endothelial cells (HRCECs) and induced TRIM46 expression. Lentiviral-mediated overexpression of TRIM46 decreased cell resistance against HG-induced ferroptosis, whereas knockdown showed the opposite effect. Administration of RSL3, a ferroptosis agonist, was able to reverse the protective effects of TRIM46 silencing. TRIM46 interacted with GPX4, an important enzyme that suppresses ferroptosis, and promoted GPX4 ubiquitination. Furthermore, lentiviral-mediated overexpression ofGPX4 ameliorated the effects of TRIM46 overexpression and conferred protection to cells against HG-induced ferroptosis. CONCLUSION TRIM46 and GPX4 form a regulatory pathway that controls HG-induced ferroptosis of HRCECs. Inhibiting this pathway or sustaining the expression of GPX4 enables cells to resist damage caused by HG. We provide new mechanistic insight into the pathology of DR and identified TRIM46 and GPX4 as two molecular targets for the development of effective drugs for DR treatment.
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Chaudhary V, Katyal P, Poonia AK, Kaur J, Puniya AK, Panwar H. Natural pigment from Monascus: The production and therapeutic significance. J Appl Microbiol 2021; 133:18-38. [PMID: 34569683 DOI: 10.1111/jam.15308] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/26/2021] [Accepted: 09/17/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The present review highlights the advantages of using natural colorant over the synthetic one. We have discussed the fermentation parameters that can enhance the productivity of Monascus pigment on agricultural wastes. BACKGROUND Food industry is looking for natural colours because these can enhance the esthetic value, attractiveness, and acceptability of food while remaining nontoxic. Many synthetic food colours (Azorubine Carmoisine, quinoline) have been prohibited due to their toxicity and carcinogenicity. Increasing consumer awareness towards the food safety has forced the manufacturing industries to look for suitable alternatives. In addition to safety, natural colorants have been found to have nutritional and therapeutic significance. Among the natural colorants, microbial pigments can be considered as a viable option because of scalability, easier production, no seasonal dependence, cheaper raw materials and easier extraction. Fungi such as Monascus have a long history of safety and therefore can be used for production of biopigments. METHOD The present review summarizes the predicted biosynthetic pathways and pigment gene clusters in Monascus purpureus. RESULTS The challenges faced during the pilot-scale production of Monascus biopigment and taming it by us of low-cost agro-industrial substrates for solid state fermentation has been suggested. CONCLUSION Keeping in mind, therapeutic properties of Monascus pigments and their derivatives, they have huge potential for industrial and pharmaceutical application. APPLICATION Though the natural pigments have wide scope in the food industry. However, stabilization of pigment is the greatest challenge and attempts are being made to overcome this by complexion with hydrocolloids or metals and by microencapsulation.
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Affiliation(s)
- Vishu Chaudhary
- Department of Microbiology, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana, Punjab, India
| | - Priya Katyal
- Department of Microbiology, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana, Punjab, India
| | - Anuj Kumar Poonia
- Department of Applied Sciences and Biotechnology, School of Biotechnology, Shoolini University, Solan, Himachal Pradesh, India
| | - Jaspreet Kaur
- Department of Microbiology, College of Basic Sciences and Humanities, Punjab Agricultural University, Ludhiana, Punjab, India
| | - Anil Kumar Puniya
- Department of Dairy Microbiology, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Harsh Panwar
- Department of Dairy Microbiology, College of Dairy Science and Technology, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, India
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Effects of Baccharin Isolated from Brazilian Green Propolis on Adipocyte Differentiation and Hyperglycemia in ob/ob Diabetic Mice. Int J Mol Sci 2021; 22:ijms22136954. [PMID: 34203569 PMCID: PMC8267681 DOI: 10.3390/ijms22136954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/18/2021] [Accepted: 06/22/2021] [Indexed: 01/04/2023] Open
Abstract
Propolis is a honeybee product with various biological activities, including antidiabetic effects. We previously reported that artepillin C, a prenylated cinnamic acid derivative isolated from Brazilian green propolis, acts as a peroxisome proliferator-activated receptor γ (PPARγ) ligand and promotes adipocyte differentiation. In this study, we examined the effect of baccharin, another major component of Brazilian green propolis, on adipocyte differentiation. The treatment of mouse 3T3-L1 preadipocytes with baccharin resulted in increased lipid accumulation, cellular triglyceride levels, glycerol-3-phosphate dehydrogenase activity, and glucose uptake. The mRNA expression levels of PPARγ and its target genes were also increased by baccharin treatment. Furthermore, baccharin enhanced PPARγ-dependent luciferase activity, suggesting that baccharin promotes adipocyte differentiation via PPARγ activation. In diabetic ob/ob mice, intraperitoneal administration of 50 mg/kg baccharin significantly improved blood glucose levels. Our results suggest that baccharin has a hypoglycemic effect on glucose metabolic disorders, such as type 2 diabetes mellitus.
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Mzimela NC, Sosibo AM, Ngubane PS, Khathi A. The changes that occur in the immune system during immune activation in pre-diabetic patients of all ethnicities, from the age of 25 to 45 years: a protocol for systematic review and meta-analysis. (Preprint). JMIR Res Protoc 2021; 11:e31619. [DOI: 10.2196/31619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 10/14/2021] [Accepted: 10/26/2021] [Indexed: 11/09/2022] Open
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Synthesis of indole-substituted thiosemicarbazones as an aldose reductase inhibitor: an in vitro, selectivity and in silico study. Future Med Chem 2021; 13:1185-1201. [PMID: 34148377 DOI: 10.4155/fmc-2020-0060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Aim: Indole is an important component of many drug molecules, and its conjugation with thiosemicarbazone moiety would be advantageous in finding lead compounds for the development of diabetic complications. Methodology: We have designed, synthesized and evaluated a series of 17 indole-thiosemicarbazones (3a-q) as aldose reductase (ALR2) and aldehyde reductase (ALR1) inhibitors. Results: After in vitro evaluation, all indole-thiosemicarbazones showed significant inhibition against both enzyme ALR1 and ALR2 with IC50 in range of 0.42-20.7 and 1.02-19.1 μM, respectively. The docking study was also carried out to consider the putative binding of molecules with the target enzymes. Conclusion: Compound 3f was found to be most active and selective for ALR2. The indole-thiosemicarbazones series described here has selective hits for diabetes-mellitus-associated complications.
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Sahingoz Erdal G, Kocoglu H, Karandere F, Kasapoglu P, Isiksacan N, Hursitoglu M. The Effect of Polypharmacy on the Charlson Comorbidity Index and Katz Index in Aging People with and without Diabetes Mellitus. Eurasian J Med 2021; 53:85-89. [PMID: 34177288 DOI: 10.5152/eurasianjmed.2021.20070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Objective The prevalence of diabetes mellitus is growing worldwide, as well as in the aging population, and its comorbidity and mortality rates are higher in aging people than they are in young people. It has been observed that the number of drugs used increases in aging patients, especially in diabetic patients. This study aimed to investigate the relationship between polypharmacy and modified Charlson Comorbidity Index (CCI) and Katz Index of Independence in Activities of Daily Living (Katz ADL) scores in aging diabetic and non-diabetic patients. Materials and Methods This prospective study included 184 diabetic and 62 non-diabetic subjects who were ≥65 years old. Comorbidity was determined with CCI, and dependency on daily basic activities was assessed with Katz ADL. Results CCI and the number of drugs were significantly higher in diabetic groups (P = .001). In all subjects and in the diabetic group, there was a negative correlation between CCI and Katz ADL (r = -0.343, P = .001; r = -0.383, P = .001, respectively); there was a positive correlation between CCI and number of drugs (r = 0.430, P = .001; r = 0.248, P = .001, respectively). Conclusion We found an increase in the number of drugs taken by the aging patients, positively correlated with the CCI score. The increase in the number of drugs used is closely related to the insufficiency in daily life activity and comorbidity, and this predicts 10-year survival. Patients should be directed to special centers or physicians who will be scheduled for multidisciplinary treatment for the prevention of polypharmacy, especially in the aging.
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Affiliation(s)
- Gulcin Sahingoz Erdal
- Department of Internal Medicine, Bakırköy Dr Sadi Konuk Training And Research Hospital, İstanbul, Turkey
| | - Hakan Kocoglu
- Department of Internal Medicine, Bakırköy Dr Sadi Konuk Training And Research Hospital, İstanbul, Turkey
| | - Faruk Karandere
- Department of Internal Medicine, Bakırköy Dr Sadi Konuk Training And Research Hospital, İstanbul, Turkey
| | - Pinar Kasapoglu
- Department of Biochemistry, Bakırköy Dr Sadi Konuk Training And Research Hospital, İstanbul, Turkey
| | - Nilgun Isiksacan
- Department of Biochemistry, Bakırköy Dr Sadi Konuk Training And Research Hospital, İstanbul, Turkey
| | - Mehmet Hursitoglu
- Department of Internal Medicine, Bakırköy Dr Sadi Konuk Training And Research Hospital, İstanbul, Turkey
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Abdelghani M, Hamed MG, Said A, Fouad E. Evaluation of perceived fears of COVID-19 virus infection and its relationship to health-related quality of life among patients with diabetes mellitus in Egypt during pandemic: a developing country single-center study. Diabetol Int 2021; 13:108-116. [PMID: 33996370 PMCID: PMC8113789 DOI: 10.1007/s13340-021-00511-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/05/2021] [Indexed: 01/10/2023]
Abstract
Aims/introduction COVID-19 pandemic and its associated circumstances had adversely affected patients with chronic diseases. This study aimed to assess the health-related quality of life (QoL), and identify its psychological and clinical correlates in patients with diabetes mellitus (DM) during pandemic in Egypt. Materials and methods A cross-sectional study, using a convenience sampling technique, was conducted among patients with DM who were recruited from Zagazig University endocrinology outpatient clinics, Sharkia Province, Egypt from June 30 to September 29, 2020. A total of 200 consecutive patients were interviewed using a semistructured demographic and clinical checklist, the fear of COVID-19 scale (FCV-19S), the Hospital Anxiety and Depression Scale (HADS), and the short form 36 (SF-36) health survey. Results Poor physical and mental QoL was reported in 64% and 62% of patients with DM, respectively. Female gender, increased mean arterial pressure (MAP), associated physical comorbidities, and depressive symptoms were associated with lesser odds of physical QoL (OR 0.46, 0.96, 0.29, and 0.88, respectively). Besides, female gender, associated physical comorbidities, fear of COVID-19 virus infection (FCV), and depressive symptoms were associated with lesser odds of mental QoL (OR 0.41, 0.36, 0.91, and 0.84, respectively). The FCV was inversely correlated with all items of SF-36 among patients. Conclusion QoL, either physical or mental, was adversely affected among patients with DM during pandemic. FCV was negatively correlated with all QOL domains. Longitudinal studies are warranted to explore the long-term effect of pandemic on the physical and mental well-being of patients with DM.
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Affiliation(s)
- Mohamed Abdelghani
- Psychiatry Department, Faculty of Medicine, Zagazig University, PO Box 44519, Zagazig, Egypt
- Department of Psychology, Virginia Commonwealth University, Richmond, USA
| | - Mohamed G. Hamed
- Department of Internal Medicine, College of Medicine, Zagazig University, Zagazig, Egypt
| | - Amira Said
- Department of Anesthesia and Surgical Intensive Care, College of Medicine, Zagazig University, Zagazig, Egypt
| | - Eman Fouad
- Psychiatry Department, Faculty of Medicine, Zagazig University, PO Box 44519, Zagazig, Egypt
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Monjezi MR, Fouladseresht H, Farjadian S, Gharesi-Fard B, Khosropanah S, Doroudchi M. T Cell Proliferative Responses and IgG Antibodies to β2GPI in Patients with Diabetes and Atherosclerosis. Endocr Metab Immune Disord Drug Targets 2021; 21:495-503. [PMID: 32368987 DOI: 10.2174/1871530320666200505115850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 03/15/2020] [Accepted: 03/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diabetes increases the risk of myocardial infarction (MI) by 2 to 3 folds. Tlymphocytes play a role in atherosclerosis, which is the main pathology behind MI. Cellular immune responses to beta-2 glycoprotein I (β2GPI) are shown in carotid atherosclerosis. OBJECTIVE To investigate the self-reactive, β2GPI-specific T-lymphocytes in patients with and without diabetes and atherosclerosis. METHODS Collectively, 164 subjects with and without diabetes that underwent coronary angiography were divided into four groups based on their diabetes status and coronary stenosis. Group I=Diabetic with ≥50% stenosis: A+D+ (n=66); Group II=Non-diabetic with ≥50% stenosis, A+D- (n=39); Group III=Diabetic with <50% stenosis: A-D+ (n=28); and Group IV=Non-diabetic with <50% stenosis: AD- (n=31). All groups were evaluated for anti-β2GPI IgG antibody by ELISA method. Then, PBMCs were isolated from 18 subjects and were stimulated with β2GPI-derived peptides to assess their proliferation in accordance with their HLA-DRB1 alleles. RESULTS Mean β2GPI IgG levels were higher in groups with ≥50% stenosis (A+) compared to those with <50% stenosis (A-), (P=0.02). The co-presence of diabetes in A+ individuals increased mean β2GPI-specific IgG. Auto-reactive β2GPI-specific T cells were detected in the repertoire of T-lymphocytes in all groups. β2GPI-peptides showed promiscuous restriction by various HLADRB1. CONCLUSION β2GPI is the target of cellular and humoral immune responses in patients with atherosclerosis. Since the T cell responses but not antibodies were detectable in A-D+ and A-D- groups, it is reasonable to assume that cellular responses preceded the humoral responses. Post-translation modifications of β2GPI under oxidative and glycemic stresses may have increased the IgG levels in patients with diabetes. Finally, identification of antigens that trigger immuno-pathogenesis in atherosclerosis and diabetes may help the development of immunomodulation methods to prevent or treat these debilitating diseases.
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Affiliation(s)
- Mohammad R Monjezi
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamed Fouladseresht
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shirin Farjadian
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Behrouz Gharesi-Fard
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahdad Khosropanah
- Department of Cardiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrnoosh Doroudchi
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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Carvalho C, Cardoso S. Diabetes-Alzheimer's Disease Link: Targeting Mitochondrial Dysfunction and Redox Imbalance. Antioxid Redox Signal 2021; 34:631-649. [PMID: 32098477 DOI: 10.1089/ars.2020.8056] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Significance: It is of common sense that the world population is aging and life expectancy is increasing. However, as the population ages, there is also an exponential risk to live into the ages where the brain-related frailties and neurodegenerative diseases develop. Hand in hand with those events, the world is witnessing a major upsurge in diabetes diagnostics. Remarkably, all of this seems to be narrowly related, and clinical and research communities highlight for the upcoming threat that it will represent for the present and future generations. Recent Advances: It is of utmost importance to clarify the influence of diabetes-related metabolic features on brain health and the mechanisms underlying the increased likelihood of developing neurodegenerative diseases, in particular Alzheimer's disease. Thereupon, a wealth of evidence suggests that mitochondria and associated oxidative stress are at the root of the link between diabetes and co-occurring disorders in the brain. Critical Issues: The scientific community has been challenged with constant failures of clinical trials raising major issues in the advance of the therapeutic field to fight chronic diseases epidemics. Thus, a change of paradigms is urgently needed. Future Directions: It has become urgent to identify new and solid candidates able to clinically reproduce the positive outcomes obtained in preclinical studies. On this basis, strategies settled to counteract diabetes-induced neurodegeneration encompassing mitochondrial dysfunction, redox status imbalance, and/or insulin dysregulation seem worth to follow. Hopefully, ongoing innovative research based on reliable experimental tools will soon bring the desired answers allowing pharmaceutical industry to apply such knowledge to human medicine.
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Affiliation(s)
- Cristina Carvalho
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal.,IIIUC-Interdisciplinarie Institute of Investigation, University of Coimbra, Coimbra, Portugal
| | - Susana Cardoso
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal.,IIIUC-Interdisciplinarie Institute of Investigation, University of Coimbra, Coimbra, Portugal
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Alemao CA, Budden KF, Gomez HM, Rehman SF, Marshall JE, Shukla SD, Donovan C, Forster SC, Yang IA, Keely S, Mann ER, El Omar EM, Belz GT, Hansbro PM. Impact of diet and the bacterial microbiome on the mucous barrier and immune disorders. Allergy 2021; 76:714-734. [PMID: 32762040 DOI: 10.1111/all.14548] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 07/10/2020] [Accepted: 07/30/2020] [Indexed: 12/11/2022]
Abstract
The prevalence of chronic immune and metabolic disorders is increasing rapidly. In particular, inflammatory bowel diseases, obesity, diabetes, asthma and chronic obstructive pulmonary disease have become major healthcare and economic burdens worldwide. Recent advances in microbiome research have led to significant discoveries of associative links between alterations in the microbiome and health, as well as these chronic supposedly noncommunicable, immune/metabolic disorders. Importantly, the interplay between diet, microbiome and the mucous barrier in these diseases has gained significant attention. Diet modulates the mucous barrier via alterations in gut microbiota, resulting in either disease onset/exacerbation due to a "poor" diet or protection against disease with a "healthy" diet. In addition, many mucosa-associated disorders possess a specific gut microbiome fingerprint associated with the composition of the mucous barrier, which is further influenced by host-microbiome and inter-microbial interactions, dietary choices, microbe immigration and antimicrobials. Our review focuses on the interactions of diet (macronutrients and micronutrients), gut microbiota and mucous barriers (gastrointestinal and respiratory tract) and their importance in the onset and/or progression of major immune/metabolic disorders. We also highlight the key mechanisms that could be targeted therapeutically to prevent and/or treat these disorders.
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Affiliation(s)
- Charlotte A. Alemao
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Kurtis F. Budden
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Henry M. Gomez
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Saima F. Rehman
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Jacqueline E. Marshall
- Faculty of Science Centre for Inflammation Centenary Institute University of Technology Sydney Sydney NSW Australia
| | - Shakti D. Shukla
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
| | - Chantal Donovan
- Faculty of Science Centre for Inflammation Centenary Institute University of Technology Sydney Sydney NSW Australia
| | - Samuel C. Forster
- Department of Molecular and Translational Sciences Hudson Institute of Medical Research Centre for Innate Immunity and Infectious Diseases Monash University Clayton VIC Australia
| | - Ian A. Yang
- Thoracic Program The Prince Charles Hospital Metro North Hospital and Health Service Brisbane QLD Australia
- Faculty of Medicine UQ Thoracic Research Centre The University of Queensland Brisbane QLD Australia
| | - Simon Keely
- Hunter Medical Research Institute Priority Research Centre for Digestive Health and Neurogastroenterology University of Newcastle New Lambton Heights NSW Australia
| | - Elizabeth R. Mann
- Lydia Becker Institute of Immunology and Inflammation University of Manchester Manchester UK
- Faculty of Biology Medicine and Health Manchester Collaborative Centre for Inflammation Research Manchester Academic Health Science Centre University of Manchester Manchester UK
| | - Emad M. El Omar
- St George & Sutherland Clinical School Microbiome Research Centre University of New South Wales Sydney NSW Australia
| | - Gabrielle T. Belz
- Diamantina Institute University of Queensland Woolloongabba QLD Australia
- Department of Medical Biology Walter and Eliza Hall Institute of Medical Research University of Melbourne Parkville VIC Australia
| | - Philip M. Hansbro
- Priority Research Centre for Healthy Lungs Hunter Medical Research Institute New Lambton, Newcastle NSW Australia
- The University of Newcastle Newcastle NSW Australia
- Faculty of Science Centre for Inflammation Centenary Institute University of Technology Sydney Sydney NSW Australia
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Ge Y, Li B, Yang Y, Feng C, Tang X, Shi Y, Le G, Sun J. Oxidized Pork Induces Disorders of Glucose Metabolism in Mice. Mol Nutr Food Res 2021; 65:e2000859. [PMID: 33502107 DOI: 10.1002/mnfr.202000859] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 12/21/2020] [Indexed: 02/27/2024]
Abstract
SCOPE Consumption of red meat, particularly processed red meat, has been reported to be associated with type 2 diabetes risk, and oxidized proteins and amino acids may be involved in this process. This study explores the effects of pork with varying degrees of oxidative injury caused by cooking on glucose metabolism in mice. METHODS AND RESULTS Cooked pork is freeze-dried to prepare animal feed. Mice are fed either a control diet (CON), a low- (LOP), or a high-oxidative injury pork diet (HOP) for 12 weeks. Intake of HOP causes hyperglycemia, hypoinsulinemia, and impaired glucose tolerance, indicating a glucose metabolism disorder. Accumulation of oxidation products increases oxidative stress and inflammatory response, which impairs pancreatic islet β cells function and reduces insulin secretion. Moreover, HOP-mediated hyperglycemia can be partly attributed to elevated hepatic glucose output, as indicated by increased gluconeogenesis and glycogenolysis, and decreased glycolysis and glycogen content. Changes in these processes may be regulated by reduced insulin levels and suppression of the insulin receptor substrate-1 (IRS-1)/phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway and its downstream signaling molecules. CONCLUSION HOP intake induces disorders of glucose metabolism by impairing pancreatic insulin secretion and increasing hepatic glucose output. Protein oxidation plays a key role in abnormal glucose metabolism induced by HOP.
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Affiliation(s)
- Yueting Ge
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Bowen Li
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Yuhui Yang
- College of Grain and Food Science, Henan University of Technology, Zhengzhou, 450001, China
| | - Chuanxing Feng
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Xue Tang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Yonghui Shi
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Guowei Le
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
- Center for Food Nutrition and Functional Food Engineering, School of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
| | - Jin Sun
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China
- Institute of Nutrition and Health, Qingdao University, Qingdao, 266071, China
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Shahwan M, Hassan N, Shaheen RA, Gaili A, Jairoun AA, Shahwan M, Najjar O, Jamshed S. Diabetes Mellitus and Renal Function: Current Medical Research and Opinion. Curr Diabetes Rev 2021; 17:e011121190176. [PMID: 33430750 DOI: 10.2174/1573399817999210111205532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 11/22/2022]
Abstract
Diabetes mellitus (DM), which is defined as high blood glucose level, is a major public health issue worldwide. An enormous amount of data has been gathered regarding DM as populations have been living with it for more than a decade; however, continually updating our knowledge of DM remains important. Comorbidities are among the major challenges associated with DM. Poorly controlled DM, especially type 2 DM (T2DM), is considered a risk factor for many diseases, including but not limited to chronic kidney disease (CKD). Complications might appear over time as the aging process changes body functions; moreover, a significant number of antidiabetic medications are eventually cleared by the kidneys, thereby increasing the burden on kidney function and placing diabetic patients at risk. The significantly high number of patients with uncontrolled diabetes resulting from kidney disease shows the impact of this condition on the quality of life of patients. This review presents an overview of the pathophysiology, etiology, and prevalence of CKD and abnormal renal parameters correlated with poorly controlled T2DM, with an emphasis on clinical studies involving the association between vitamin D insufficiency/deficiency and CKD among patients with T2DM.
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Affiliation(s)
- Moyad Shahwan
- Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates
| | - Nageeb Hassan
- Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates
| | - Rima Ahd Shaheen
- Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates
| | - Ahmed Gaili
- Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, United Arab Emirates
| | | | - Monzer Shahwan
- Diabetes Clinic, Al-Swity Center for Dermatology and Chronic Diseases, Palestinian Territory, Occupied
| | - Osama Najjar
- General Directorate of Allied Health Professions, Ministry of Health, Palestinian Territory, Occupied
| | - Shazia Jamshed
- Department of Clinical Pharmacy and Practice, Faculty of Pharmacy, Universiti Sultan Zainal Abidin (UniSZA) Besut Campus, Kuala terraenganu, Malaysia
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Finžgar M, Frangež HB, Cankar K, Frangež I. Transcutaneous application of the gaseous CO 2 for improvement of the microvascular function in patients with diabetic foot ulcers. Microvasc Res 2020; 133:104100. [PMID: 33181169 DOI: 10.1016/j.mvr.2020.104100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/03/2020] [Accepted: 11/03/2020] [Indexed: 01/13/2023]
Abstract
INTRODUCTION Microvascular function is impaired in patients with diabetes mellitus (DM) and is involved in numerous DM complications. Several microvascular-supporting interventions have been proposed of which the transcutaneous application of gaseous CO2 (hereinafter CO2 therapy) is one of the most promising. The aim of present study was to determine the effect of repeated CO2 therapies on the cutaneous microvascular function in DM patients with diabetic foot ulcers. METHODOLOGY A total of 42 subjects with at least one chronic diabetic foot ulcer were enrolled in the study. They were divided into the experimental group (21 subjects aged 64.6 ± 11.6 years) that underwent 4-week-long treatment with transcutaneous application of gaseous CO2 (hereinafter CO2 therapies), and the placebo group (21 subjects aged 65.0 ± 10.7 years) that underwent 4-week-long placebo treatment with transcutaneous application of air. Before the first and after the last treatment in both groups, laser Doppler (LD) flux in foot cutaneous microcirculation, heart rate, and arterial blood pressure measurements were carried out during rest and local thermal hyperaemia (LTH) provocation test. RESULTS In the experimental group the following statistically significant changes were observed after the completed treatment 1) increased mean relative powers of LD flux signals during rest in the frequency bands related to NO-independent endothelial (0.07 ± 0.055 vs. 0.048 ± 0.059, p = 0.0058), NO-mediated endothelial (0.154 ± 0.101 vs. 0.113 ± 0.108, p = 0.015), and neurogenic (0.17 ± 0.107 vs. 0.136 ± 0.098, p = 0.018) activity; 2) decreased resting LD flux (35 ± 29 PU vs. 52 ± 56 PU; p = 0.038); and 3) increased peak LD flux as a function of baseline during LTH (482 ± 474%BL vs. 287 ± 262%BL, p = 0.036); there were no statistically significant changes observed in the placebo group. No systemic effects were observed in none of the two groups by means of mean values of heart rate and arterial blood pressure. CONCLUSIONS Repeated CO2 therapies improves the microvasular function in DM patients without any systemic side effects.
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Affiliation(s)
- Miha Finžgar
- Faculty of Mechanical Engineering, University of Ljubljana, Aškerčeva c. 6, Ljubljana, Slovenia
| | - Helena Ban Frangež
- Department of Obstetrics and Gynaecology, University Medical Centre Ljubljana, Šlajmerjeva ul. 3, 1000 Ljubljana, Slovenia; Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia
| | - Ksenija Cankar
- Institute of Physiology, Faculty of Medicine, University of Ljubljana, Zaloška c. 4, 1000 Ljubljana, Slovenia
| | - Igor Frangež
- Faculty of Medicine, University of Ljubljana, Vrazov trg 2, 1000 Ljubljana, Slovenia; Department of Surgical Infections, University Medical Centre Ljubljana, Zaloška c. 2, 1000 Ljubljana, Slovenia.
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Tyagi O, Zhu Y, Johnson C, Mehta RK, Sasangohar F, Erraguntla M, Qaraqe K. Neural Signatures of Handgrip Fatigue in Type 1 Diabetic Men and Women. Front Hum Neurosci 2020; 14:564969. [PMID: 33240061 PMCID: PMC7680760 DOI: 10.3389/fnhum.2020.564969] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 10/14/2020] [Indexed: 01/22/2023] Open
Abstract
Type 1 diabetes (T1D) is associated with reduced muscular strength and greater muscle fatigability. Along with changes in muscular mechanisms, T1D is also linked to structural changes in the brain. How the neurophysiological mechanisms underlying muscle fatigue is altered with T1D and sex related differences of these mechanisms are still not well investigated. The aim of this study was to determine the impact of T1D on the neural correlates of handgrip fatigue and examine sex and T1D related differences in neuromuscular performance parameters, neural activation and functional connectivity patterns between the motor regions of the brain. Forty-two adults, balanced by condition (healthy vs T1D) and sex (male vs female), and performed submaximal isometric handgrip contractions until voluntary exhaustion. Initial strength, endurance time, strength loss, force variability, and complexity measures were collected. Additionally, hemodynamic responses from motor-function related cortical regions, using functional near-infrared spectroscopy (fNIRS), were obtained. Overall, females exhibited lower initial strength (p < 0.0001), and greater strength loss (p = 0.023) than males. While initial strength was significantly lower in the T1D group (p = 0.012) compared to the healthy group, endurance times and strength loss were comparable between the two groups. Force complexity, measured as approximate entropy, was found to be lower throughout the experiment for the T1D group (p = 0.0378), indicating lower online motor adaptability. Although, T1D and healthy groups fatigued similarly, only the T1D group exhibited increased neural activation in the left (p = 0.095) and right (p = 0.072) supplementary motor areas (SMA) over time. A sex × condition × fatigue interaction effect (p = 0.044) showed that while increased activation was observed in both T1D females and healthy males from the Early to Middle phase, this was not observed in healthy females or T1D males. These findings demonstrate that T1D adults had lower adaptability to fatigue which they compensated for by increasing neural effort. This study highlights the importance of examining both neural and motor performance signatures when investigating the impact of chronic conditions on neuromuscular fatigue. Additionally, the findings have implications for developing intervention strategies for training, rehabilitation, and ergonomics considerations for individuals with chronic conditions.
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Affiliation(s)
- Oshin Tyagi
- Department of Industrial and Systems Engineering, Texas A&M University, College Station, TX, United States
| | - Yibo Zhu
- Department of Industrial and Systems Engineering, Texas A&M University, College Station, TX, United States
| | - Connor Johnson
- Department of Industrial and Systems Engineering, Texas A&M University, College Station, TX, United States
| | - Ranjana K. Mehta
- Department of Industrial and Systems Engineering, Texas A&M University, College Station, TX, United States
| | - Farzan Sasangohar
- Department of Industrial and Systems Engineering, Texas A&M University, College Station, TX, United States
| | - Madhav Erraguntla
- Department of Industrial and Systems Engineering, Texas A&M University, College Station, TX, United States
| | - Khalid Qaraqe
- Department of Electrical and Computer Engineering, Texas A&M University at Qatar, Doha, Qatar
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Hoffmann C, Schneeweiss P, Randrianarisoa E, Schnauder G, Kappler L, Machann J, Schick F, Fritsche A, Heni M, Birkenfeld A, Niess AM, Häring HU, Weigert C, Moller A. Response of Mitochondrial Respiration in Adipose Tissue and Muscle to 8 Weeks of Endurance Exercise in Obese Subjects. J Clin Endocrinol Metab 2020; 105:5895511. [PMID: 32827042 DOI: 10.1210/clinem/dgaa571] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 08/19/2020] [Indexed: 01/04/2023]
Abstract
CONTEXT Exercise training improves glycemic control and increases mitochondrial content and respiration capacity in skeletal muscle. Rodent studies suggest that training increases mitochondrial respiration in adipose tissue. OBJECTIVE To assess the effects of endurance training on respiratory capacities of human skeletal muscle and abdominal subcutaneous adipose tissue and to study the correlation with improvement in insulin sensitivity. DESIGN Using high-resolution respirometry, we analyzed biopsies from 25 sedentary (VO2 peak 25.1 ± 4.0 VO2 mL/[kg*min]) subjects (16 female, 9 male; 29.8 ± 8.4 years) with obesity (body mass index [BMI] 31.5 ± 4.3 kg/m2), who did not have diabetes. They performed a supervised endurance training over 8 weeks (3 × 1 hour/week at 80% VO2 peak). RESULTS Based on change in insulin sensitivity after intervention (using the Matsuda insulin sensitivity index [ISIMats]), subjects were grouped in subgroups as responders (>15% increase in ISIMats) and low-responders. The response in ISIMats was correlated to a reduction of subcutaneous and visceral adipose tissue volume. Both groups exhibited similar increases in fitness, respiratory capacity, and abundance of mitochondrial enzymes in skeletal muscle fibers. Respiratory capacities in subcutaneous adipose tissue were not altered by the intervention. Compared with muscle fibers, adipose tissue respiration showed a preference for β-oxidation and complex II substrates. Respiratory capacities were higher in adipose tissue from female participants. CONCLUSION Our data show that the improvement of peripheral insulin sensitivity after endurance training is not directly related to an increase in mitochondrial respiratory capacities in skeletal muscle and occurs without an increase in the respiratory capacity of subcutaneous adipose tissue.
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Affiliation(s)
- Christoph Hoffmann
- Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, Tübingen, Germany
| | - Patrick Schneeweiss
- Department of Sports Medicine, University Hospital Tübingen, Tübingen, Germany
- Interfaculty Research Institute for Sports and Physical Activity, University of Tübingen, Tübingen, Germany
| | - Elko Randrianarisoa
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
| | - Günter Schnauder
- Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany
| | - Lisa Kappler
- Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, Tübingen, Germany
| | - Jürgen Machann
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
- Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Tübingen, Germany
| | - Fritz Schick
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
- Section on Experimental Radiology, Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Tübingen, Germany
| | - Andreas Fritsche
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
- Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany
| | - Martin Heni
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
- Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany
| | - Andreas Birkenfeld
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
- Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany
| | - Andreas M Niess
- Department of Sports Medicine, University Hospital Tübingen, Tübingen, Germany
- Interfaculty Research Institute for Sports and Physical Activity, University of Tübingen, Tübingen, Germany
| | - Hans-Ulrich Häring
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
- Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany
| | - Cora Weigert
- Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, Tübingen, Germany
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
| | - Anja Moller
- Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Zentrum München at the University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research (DZD)
- Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany
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Shehab A, Bhagavathula AS, Al-Rasadi K, Alshamsi F, Al Kaab J, Thani KB, Mustafa R. Diabetes and Mortality in Acute Coronary Syndrome: Findings from the Gulf COAST Registry. Curr Vasc Pharmacol 2020; 18:68-76. [PMID: 30360744 DOI: 10.2174/1570161116666181024094337] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 10/13/2018] [Accepted: 10/13/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND The prevalence of traditional risk factors such as diabetes mellitus (DM) and obesity are increasing in patients with acute coronary syndrome (ACS). Furthermore, outcomes after ACS are worse in patients with DM. The high prevalence of DM and an early age at onset of ACS have been described in prior publications from the Gulf Coast Database. AIMS We aimed to define the effect of DM on total mortality following ACS presentation at 30-days and 1 year based on the Gulf COAST registry database. METHODS The Gulf COAST registry is a prospective, multinational, longitudinal, observational cohort study conducted among Gulf citizens admitted with a diagnosis of ACS. The outcomes among patients with DM following ACS were stratified into 2 groups based on their DM status. Cumulative survival stratified by groups and subgroup categories was assessed by the Kaplan-Meier method. RESULTS Of 3,576 ACS patients, 2,730 (76.3%) presented with non ST-segment elevation myocardial infarction (NSTEMI) and 846 (23.6%) with STEMI. Overall, 1906 patients (53.3%) had DM. A significantly higher in-hospital (4.8%), 30-day (6.7%) and 1-year (13.7%) mortality were observed in patients with DM compared with those without DM. The Kaplan-Meier survival curve showed significant differences in survival of ACS patients with or without DM, with a short period of time-to-event for DM patients with STEMI (30-days) and the longest (1-year) for NSTEMI patients without DM. CONCLUSION DM patients presenting with ACS-STEMI have poor short-term outcomes while DMNSTEMI patients have poor long-term outcomes. This highlights the need for strategies to evaluate DM control and integration of care to control vascular risk among this high-risk population.
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Affiliation(s)
- Abdulla Shehab
- Department of Internal medicine, United Arab Emirates University- College of Medicine and Health Sciences, Al Ain, United Arab Emirates
| | - Akshaya Srikanth Bhagavathula
- Department of Internal medicine, United Arab Emirates University- College of Medicine and Health Sciences, Al Ain, United Arab Emirates
| | - Khalid Al-Rasadi
- Department of Biochemistry, Sultan Qaboos University Hospital, Muscat, Oman
| | - Fayez Alshamsi
- Department of Internal medicine, United Arab Emirates University- College of Medicine and Health Sciences, Al Ain, United Arab Emirates
| | - Juma Al Kaab
- Clinical affairs Internal Medicine, United Arab Emirates University - College of Medicine and Health Sciences, Al Ain, United Arab Emirates
| | | | - Ridha Mustafa
- Department of Medicine, Ministry of Health, Al-Adan, Kuwait
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FIB-4 index is a marker for a subsequent decrease in insulin secretion in a non-diabetic Japanese population. Sci Rep 2020; 10:15814. [PMID: 32978491 PMCID: PMC7519131 DOI: 10.1038/s41598-020-72894-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 08/31/2020] [Indexed: 12/28/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is associated with a high risk of type 2 diabetes (DM), therefore, early diagnosis of NAFLD is important to prevent incident DM. FIB-4 index, a biomarker, often used to evaluate severity of NAFLD, may be useful to evaluate risk for incident DM in ordinary clinical setting. Here, we determined the association of FIB-4 index with changes in indices representing glucose metabolism with aging in a non-diabetic population. From among the participants of the population-based Iwaki study of Japanese people conducted during 2014-2017, 1,268 non-diabetic individuals with complete data sets (age: 51.4 ± 15.9 years; men/women: 485/773) were enrolled in a cross-sectional study. In addition, of the participants, 439 who attended consecutive appointments between 2014 and 2017 were enrolled in a longitudinal study that aimed to evaluate the changes in insulin secretion and resistance with aging (age: 53.1 ± 13.7 years; men/women: 178/261). The cross-sectional study showed significant correlations of FIB-4 index with homeostasis model of assessment (HOMA) indices, even after adjustment for multiple factors (HOMA-β: β = - 0.254, p < 0.001; HOMA-R: β = - 0.247, p < 0.001). The longitudinal study showed a significant association between FIB-4 index and the change in HOMA-β (p < 0.001) but not HOMA-R (p = 0.639) during the 3-year study period. Use of the optimal cut-off value of the FIB-4 index for the prediction of decreased insulin secretion (HOMA-β < 30), determined using receiver operating characteristic analysis (1.592), showed that individuals at risk had a hazard ratio of 2.22 (confidence interval 1.17-4.06) for decreased insulin secretion, after adjustment for confounders. FIB-4 index may represent a useful predictor of a subsequent decrease in insulin secretion, at least in a non-diabetic Japanese population.
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Murakami H, Yasui‐Furukori N, Otaka H, Nakayama H, Murabayashi M, Mizushiri S, Matsumura K, Tanabe J, Matsuhashi Y, Yanagimachi M, Sugawara N, Shimoda K, Daimon M. Coping styles associated with glucose control in individuals with type 2 diabetes mellitus. J Diabetes Investig 2020; 11:1215-1221. [PMID: 32017452 PMCID: PMC7477505 DOI: 10.1111/jdi.13225] [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: 04/22/2019] [Revised: 01/21/2020] [Accepted: 02/02/2020] [Indexed: 01/26/2023] Open
Abstract
AIMS/OBJECTIVES Glycemic control varies according to stress level and the efficacy of control measures, affecting the outcomes of diabetes. Although detailed coping styles have not been well studied in patients with type 2 diabetes mellitus, problem-focused coping strategies are believed to be related to better control of blood glucose. Associations between coping profiles/dimensions and blood glucose control were examined in individuals with type 2 diabetes. MATERIALS AND METHODS The participants included 503 Japanese patients (mean age 63.9 ± 12.6 years) with type 2 diabetes. The average glycated hemoglobin A1c (HbA1c) levels were calculated from HbA1c levels measured more than four times within the 12 months before the assessment. Coping profiles were assessed using the Brief Scale for Coping Profile. Lifestyle factors were also included in the analyses. RESULTS Factors other than age were not associated with HbA1c levels in patients who used insulin. Conversely, habitual alcohol consumption, single status, the adaptive emotion-focused coping dimension, and changing mood and changing one's point of view profiles were associated with HbA1c levels. CONCLUSIONS These findings suggest that adaptive emotion-focused coping supports glycemic control in type 2 diabetes patients who do not use insulin. Additional studies using a longitudinal design are required to further examine the relationships between psychological factors and glycemic control.
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Affiliation(s)
- Hiroshi Murakami
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Norio Yasui‐Furukori
- Department of NeuropsychiatryHirosaki University Graduate School of MedicineHirosakiJapan
- Department of PsychiatryDokkyo Medical University School of MedicineMibuJapan
| | - Hideyuki Otaka
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Hirofumi Nakayama
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Masaya Murabayashi
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Satoru Mizushiri
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Koki Matsumura
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Jutaro Tanabe
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Yuki Matsuhashi
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Miyuki Yanagimachi
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
| | - Norio Sugawara
- Department of PsychiatryDokkyo Medical University School of MedicineMibuJapan
- Department of Clinical EpidemiologyTranslational Medical CenterNational Center of Neurology and PsychiatryKodairaJapan
| | - Kazutaka Shimoda
- Department of PsychiatryDokkyo Medical University School of MedicineMibuJapan
| | - Makoto Daimon
- Department of Endocrinology and MetabolismHirosaki University Graduate School of MedicineHirosakiJapan
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Artificial intelligence for diabetic retinopathy screening, prediction and management. Curr Opin Ophthalmol 2020; 31:357-365. [PMID: 32740069 DOI: 10.1097/icu.0000000000000693] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
PURPOSE OF REVIEW Diabetic retinopathy is the most common specific complication of diabetes mellitus. Traditional care for patients with diabetes and diabetic retinopathy is fragmented, uncoordinated and delivered in a piecemeal nature, often in the most expensive and high-resource tertiary settings. Transformative new models incorporating digital technology are needed to address these gaps in clinical care. RECENT FINDINGS Artificial intelligence and telehealth may improve access, financial sustainability and coverage of diabetic retinopathy screening programs. They enable risk stratifying patients based on individual risk of vision-threatening diabetic retinopathy including diabetic macular edema (DME), and predicting which patients with DME best respond to antivascular endothelial growth factor therapy. SUMMARY Progress in artificial intelligence and tele-ophthalmology for diabetic retinopathy screening, including artificial intelligence applications in 'real-world settings' and cost-effectiveness studies are summarized. Furthermore, the initial research on the use of artificial intelligence models for diabetic retinopathy risk stratification and management of DME are outlined along with potential future directions. Finally, the need for artificial intelligence adoption within ophthalmology in response to coronavirus disease 2019 is discussed. Digital health solutions such as artificial intelligence and telehealth can facilitate the integration of community, primary and specialist eye care services, optimize the flow of patients within healthcare networks, and improve the efficiency of diabetic retinopathy management.
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Pahlavani N, Malekahmadi M, Firouzi S, Rostami D, Sedaghat A, Moghaddam AB, Ferns GA, Navashenaq JG, Reazvani R, Safarian M, Ghayour-Mobarhan M. Molecular and cellular mechanisms of the effects of Propolis in inflammation, oxidative stress and glycemic control in chronic diseases. Nutr Metab (Lond) 2020; 17:65. [PMID: 32817750 PMCID: PMC7425411 DOI: 10.1186/s12986-020-00485-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 07/31/2020] [Indexed: 12/16/2022] Open
Abstract
Propolis is a sticky, resinous material gather from plants and is blended with wax and other constituents. It is reported to have anti-inflammatory, anti-oxidative and blood glucose-lowering properties. This review aims to summarise evidences for the cellular and molecular mechanism of Propolis in inflammation, oxidative stress, and glycemic control. Propolis stimulate the production and secretion of anti-inflammatory cytokines and to inhibit the production of inflammatory cytokines and due to its various antioxidant and poly-phenolic compounds may has a role in control and treating some of the chronic diseases. Most studies have shown that Propolis may affect metabolic factors including plasma insulin levels, and it has proposed that it could be used in the prevention and treatment of T2D Mellitus. In general, to demonstrate the definite effects of Propolis on chronic diseases, more studies are required using larger sample sizes and various doses of Propolis, using better characterized and standardized agents.
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Affiliation(s)
- Naseh Pahlavani
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Vakil Abad Blvd., Opposite to Mellat Park, Mashhad, 99199-91766 Iran
| | - Mahsa Malekahmadi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Vakil Abad Blvd., Opposite to Mellat Park, Mashhad, 99199-91766 Iran
| | - Safieh Firouzi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Vakil Abad Blvd., Opposite to Mellat Park, Mashhad, 99199-91766 Iran
| | - Daryoush Rostami
- Department of Anesthesia, School of Paramedical Sciences, Zabol University of Medical Sciences, Zabol, Iran
| | - Alireza Sedaghat
- Cardiac Anesthesia Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ahmad Bagheri Moghaddam
- Department of Internal Medicine and Critical Care, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A. Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Falmer, Brighton, Sussex, BN1 9PH UK
| | | | - Reza Reazvani
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Vakil Abad Blvd., Opposite to Mellat Park, Mashhad, 99199-91766 Iran
| | - Mohammad Safarian
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Vakil Abad Blvd., Opposite to Mellat Park, Mashhad, 99199-91766 Iran
| | - Majid Ghayour-Mobarhan
- Metabolic Syndrome Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Vakil Abad Blvd., Opposite to Mellat Park, Mashhad, 99199-91766 Iran
- Cardiovascular Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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The balancing act of NEET proteins: Iron, ROS, calcium and metabolism. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118805. [PMID: 32745723 DOI: 10.1016/j.bbamcr.2020.118805] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/24/2020] [Accepted: 07/26/2020] [Indexed: 12/11/2022]
Abstract
NEET proteins belong to a highly conserved group of [2Fe-2S] proteins found across all kingdoms of life. Due to their unique [2Fe2S] cluster structure, they play a key role in the regulation of many different redox and oxidation processes. In eukaryotes, NEET proteins are localized to the mitochondria, endoplasmic reticulum (ER) and the mitochondrial-associated membranes connecting these organelles (MAM), and are involved in the control of multiple processes, ranging from autophagy and apoptosis to ferroptosis, oxidative stress, cell proliferation, redox control and iron and iron‑sulfur homeostasis. Through their different functions and interactions with key proteins such as VDAC and Bcl-2, NEET proteins coordinate different mitochondrial, MAM, ER and cytosolic processes and functions and regulate major signaling molecules such as calcium and reactive oxygen species. Owing to their central role in cells, NEET proteins are associated with numerous human maladies including cancer, metabolic diseases, diabetes, obesity, and neurodegenerative diseases. In recent years, a new and exciting role for NEET proteins was uncovered, i.e., the regulation of mitochondrial dynamics and morphology. This new role places NEET proteins at the forefront of studies into cancer and different metabolic diseases, both associated with the regulation of mitochondrial dynamics. Here we review recent studies focused on the evolution, biological role, and structure of NEET proteins, as well as discuss different studies conducted on NEET proteins function using transgenic organisms. We further discuss the different strategies used in the development of drugs that target NEET proteins, and link these with the different roles of NEET proteins in cells.
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