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Chen Q, Guo J, Han S, Wang T, Xia K, Yu B, Liu Y, Qiu T, Zhou J. The impact of donor diabetes on recipient postoperative complications, renal function, and survival rate in deceased donor kidney transplantation: a single-center analysis. Ren Fail 2024; 46:2391067. [PMID: 39177237 PMCID: PMC11346333 DOI: 10.1080/0886022x.2024.2391067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 07/26/2024] [Accepted: 08/06/2024] [Indexed: 08/24/2024] Open
Abstract
As the global incidence of diabetes rises and diagnoses among younger patients increase, transplant centers worldwide are encountering more organ donors with diabetes. This study examined 80 donors and 160 recipients, including 30 donors with diabetes (DD) and their 60 recipients (DDR). The control group comprised 50 non-diabetic donors (ND) and 100 recipients (NDR). We analyzed clinical, biochemical, and pathological data for both diabetic and control groups, using logistic regression to identify risk factors for delayed graft function (DGF) after kidney transplantation. Results showed that pre-procurement blood urea nitrogen levels were significantly higher in DD [18.20 ± 10.63 vs. 10.86 ± 6.92, p = 0.002] compared to ND. Renal pathological damage in DD was notably more severe, likely contributing to the higher DGF incidence in DDR compared to NDR. Although DDR had poorer renal function during the first three months post-transplant, both groups showed similar renal function thereafter. No significant differences were observed in 1-year or 3-year mortality rates or graft failure rates between DDR and NDR. Notably, according to the Renal Pathology Society (RPS) grading system, kidneys from diabetic donors with a grade > IIb are associated with significantly lower postoperative survival rates. Recipient gender [OR: 5.452 (1.330-22.353), p = 0.013] and pre-transplant PRA positivity [OR: 34.879 (7.698-158.030), p < 0.001] were identified as independent predictors of DGF in DDR. In conclusion, transplant centers may consider utilizing kidneys from diabetic donors, provided they are evaluated pathologically, without adversely impacting recipient survival and graft failure rates.
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Affiliation(s)
- Qi Chen
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Jiayu Guo
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Shangting Han
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Tianyu Wang
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Kang Xia
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Bo Yu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Yiting Liu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Tao Qiu
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
| | - Jiangqiao Zhou
- Department of Organ Transplantation, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, Hubei, China
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Mishra RC, Belke DD, Singh L, Wulff H, Braun AP. Targeting endothelial K Ca channels in vivo restores arterial and endothelial function in type 2 diabetic rats. Metabolism 2024; 160:156001. [PMID: 39163925 DOI: 10.1016/j.metabol.2024.156001] [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: 04/23/2024] [Revised: 08/16/2024] [Accepted: 08/16/2024] [Indexed: 08/22/2024]
Abstract
OBJECTIVE This study tested the hypothesis that administration of the KCa channel activator SKA-31 restores endothelium-dependent vasodilation in vivo in Type 2 Diabetic (T2D) rats. BACKGROUND Acute treatment of isolated resistance arteries from T2D rats and humans with SKA-31 significantly improved endothelium-dependent vasodilation. However, it is unknown whether these in situ actions translate to intact vascular beds in vivo. METHODS Male Sprague Dawley (SD) and T2D Goto-Kakizaki (GK) rats (26-32 weeks of age) were injected intraperitoneally with either drug vehicle or 10 mg/kg SKA-31. Doppler ultrasound imaging was used to record reactive hyperemia/flow-mediated dilation (FMD) in the femoral artery following release of an occlusion cuff on the distal hind limb, along with diameter changes in the left main coronary artery in response to inhaled isoflurane (2 % → 5 %). RESULTS Vehicle treated SD rats exhibited a robust and reversible FMD response, the magnitude and time course of which did not differ in SD rats treated with SKA-31. In contrast, only a weak FMD response was observed in vehicle-treated T2D GK rats, whereas prior SKA-31 administration restored FMD to the level observed in control SD rats. Exposure of SD rats to 5 % isoflurane caused robust coronary artery dilation, which was not altered by prior treatment with SKA-31. In T2D GK rats, 5 % isoflurane inhalation alone did not increase coronary artery diameter, however, a strong vasodilatory response was observed following SKA-31 treatment. SKA-31 administration did not modify intrinsic heart rate responses in either protocol. CONCLUSIONS Enhancement of KCa channel activity in vivo restores endothelium-dependent vasodilation in T2D rats that exhibit peripheral endothelial dysfunction.
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Affiliation(s)
- Ramesh C Mishra
- Dept. of Physiology and Pharmacology, Cumming School of Medicine and Libin Cardiovascular Institute, University of Calgary, Canada
| | - Darrell D Belke
- Dept. of Cardiac Sciences, Cumming School of Medicine and Libin Cardiovascular Institute, University of Calgary, Canada
| | - Latika Singh
- Dept. of Pharmacology, School of Medicine, University of California Davis, USA
| | - Heike Wulff
- Dept. of Pharmacology, School of Medicine, University of California Davis, USA
| | - Andrew P Braun
- Dept. of Physiology and Pharmacology, Cumming School of Medicine and Libin Cardiovascular Institute, University of Calgary, Canada.
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Gluvic Z, Obradovic M, Manojlovic M, Vincenza Giglio R, Maria Patti A, Ciaccio M, Suri JS, Rizzo M, Isenovic ER. Impact of different hormones on the regulation of nitric oxide in diabetes. Mol Cell Endocrinol 2024; 592:112325. [PMID: 38968968 DOI: 10.1016/j.mce.2024.112325] [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: 04/03/2024] [Revised: 06/10/2024] [Accepted: 07/02/2024] [Indexed: 07/07/2024]
Abstract
Polymetabolic syndrome achieved pandemic proportions and dramatically influenced public health systems functioning worldwide. Chronic vascular complications are the major contributors to increased morbidity, disability, and mortality rates in diabetes patients. Nitric oxide (NO) is among the most important vascular bed function regulators. However, NO homeostasis is significantly deranged in pathological conditions. Additionally, different hormones directly or indirectly affect NO production and activity and subsequently act on vascular physiology. In this paper, we summarize the recent literature data related to the effects of insulin, estradiol, insulin-like growth factor-1, ghrelin, angiotensin II and irisin on the NO regulation in physiological and diabetes circumstances.
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Affiliation(s)
- Zoran Gluvic
- University Clinical-Hospital Centre Zemun-Belgrade, Clinic of Internal Medicine, Department of Endocrinology and Diabetes, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
| | - Milan Obradovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Mia Manojlovic
- Faculty of Medicine Novi Sad, University of Novi Sad, Novi Sad, Serbia; Clinic for Endocrinology, Diabetes and Metabolic Disorders, Clinical Center of Vojvodina, Novi Sad, Serbia
| | - Rosaria Vincenza Giglio
- Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Italy; Department of Laboratory Medicine, University Hospital, Palermo, Italy
| | - Angelo Maria Patti
- Department of Health Promotion Sciences Maternal and Infantile Care, Internal Medicine and Medical Specialties, University of Palermo, Italy
| | - Marcello Ciaccio
- Department of Biomedicine, Neuroscience and Advanced Diagnostics, University of Palermo, Italy; Department of Laboratory Medicine, University Hospital, Palermo, Italy
| | - Jasjit S Suri
- Stroke Monitoring and Diagnostic Division, AtheroPoint™, Roseville, CA, 95661, USA
| | - Manfredi Rizzo
- Internal Medicine Unit, "Vittorio Emanuele II" Hospital, Castelvetrano, Italy
| | - Esma R Isenovic
- Department of Radiobiology and Molecular Genetics, VINČA Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Shen YR, Cheng L, Zhang DF. TRPV1: a novel target for the therapy of diabetes and diabetic complications. Eur J Pharmacol 2024:177021. [PMID: 39362389 DOI: 10.1016/j.ejphar.2024.177021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 09/18/2024] [Accepted: 09/30/2024] [Indexed: 10/05/2024]
Abstract
BACKGROUND Diabetes mellitus is a chronic metabolic disease characterized by abnormally elevated blood glucose levels. Type II diabetes accounts for approximately 90% of all cases. Several drugs are available for hyperglycemia treatment. However, the current therapies for managing high blood glucose do not prevent or reverse the disease progression, which may result in complications and adverse effects, including diabetic neuropathy, retinopathy, and nephropathy. Hence, developing safer and more effective methods for lowering blood glucose levels is imperative. Transient receptor potential vanilloid-1 (TRPV1) is a significant member of the transient receptor potential family. It is present in numerous body tissues and organs and performs vital physiological functions. PURPOSE This review aimed to develop new targeted TRPV1 hypoglycemic drugs by systematically summarizing the mechanism of action of the TRPV1-based signaling pathway in preventing and treating diabetes and its complications. METHODS Literature searches were performed in the PubMed, Web of Science, Google Scholar, Medline, and Scopus databases for 10 years from 2013 to 2023. The search terms included "diabetes," "TRPV1," "diabetic complications," and "capsaicin." RESULTS TRPV1 is an essential potential target for treating diabetes mellitus and its complications. It reduces hepatic glucose production and food intake and promotes thermogenesis, metabolism, and insulin secretion. Activation of TRPV1 ameliorates diabetic nephropathy, retinopathy, myocardial infarction, vascular endothelial dysfunction, gastroparesis, and bladder dysfunction. Suppression of TRPV1 improves diabetes-related osteoporosis. However, the therapeutic effects of activating or suppressing TRPV1 may vary when treating diabetic neuropathy and periodontitis. CONCLUSION This review demonstrates that TRPV1 is a potential therapeutic target for diabetes and its complications. Additionally, it provides a theoretical basis for developing new hypoglycemic drugs that target TRPV1.
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Affiliation(s)
- Yu-Rong Shen
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Long Cheng
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang 110122, China.
| | - Dong-Fang Zhang
- Department of Pharmacognosy, School of Pharmacy, China Medical University, Shenyang 110122, China.
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Pino MTL, Rocca MV, Acosta LH, Cabilla JP. Challenging the Norm: The Unrecognized Impact of Soluble Guanylyl Cyclase Subunits in Cancer. Int J Mol Sci 2024; 25:10053. [PMID: 39337539 PMCID: PMC11432225 DOI: 10.3390/ijms251810053] [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: 06/19/2024] [Revised: 08/14/2024] [Accepted: 08/19/2024] [Indexed: 09/30/2024] Open
Abstract
Since the discovery of nitric oxide (NO), a long journey has led us to the present, during which much knowledge has been gained about its pathway members and their roles in physiological and various pathophysiological conditions. Soluble guanylyl cyclase (sGC), the main NO receptor composed of the sGCα1 and sGCβ1 subunits, has been one of the central figures in this narrative. However, the sGCα1 and sGCβ1 subunits remained obscured by the focus on sGC's enzymatic activity for many years. In this review, we restore the significance of the sGCα1 and sGCβ1 subunits by compiling and analyzing available but previously overlooked information regarding their roles beyond enzymatic activity. We delve into the basics of sGC expression regulation, from its transcriptional regulation to its interaction with proteins, placing particular emphasis on evidence thus far demonstrating the actions of each sGC subunit in different tumor models. Exploring the roles of sGC subunits in cancer offers a valuable opportunity to enhance our understanding of tumor biology and discover new therapeutic avenues.
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Affiliation(s)
- María Teresa L Pino
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, CONICET-Universidad Abierta Interamericana, Buenos Aires C1270AAH, Argentina
| | - María Victoria Rocca
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, CONICET-Universidad Abierta Interamericana, Buenos Aires C1270AAH, Argentina
| | - Lucas H Acosta
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, CONICET-Universidad Abierta Interamericana, Buenos Aires C1270AAH, Argentina
| | - Jimena P Cabilla
- Centro de Altos Estudios en Ciencias Humanas y de la Salud, CONICET-Universidad Abierta Interamericana, Buenos Aires C1270AAH, Argentina
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A-Elgadir TME, Shati AA, Alqahtani SA, Ebrahim HA, Almohaimeed HM, ShamsEldeeen AM, Haidara MA, Kamar SS, Dawood AF, El-Bidawy MH. Mesenchymal stem cells improve cardiac function in diabetic rats by reducing cardiac injury biomarkers and downregulating JAK/STAT/iNOS and iNOS/Apoptosis signaling pathways. Mol Cell Endocrinol 2024; 591:112280. [PMID: 38797354 DOI: 10.1016/j.mce.2024.112280] [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: 04/02/2024] [Revised: 05/18/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
Cardiovascular complications are prevalent manifestations of type 2 diabetes mellitus (T2DM) and are usually the main cause of death. This study aims to show the underlying mechanisms of the potential therapeutic effect of mesenchymal stem cells (MSCs) on diabetic cardiac dysfunction. Twenty-four male Wistar rats were randomly assigned to one of three groups The control group received standard laboratory chow, and the groups with T2DM received a single dose of 45 mg/kg body weight of streptozotocin (STZ) after 3 weeks of pretreatment with a high-fat diet (HFD). Eight weeks after the diagnosis of T2DM, rats were divided into two groups: the T2DM model group and the T2DM + MSCs group. BM-MSCs were administered systemically at 2 × 106 cells/rat doses. A Significant amelioration in Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) and dyslipidemia was noted 2 weeks post-administration of MSCs. Administration of MSCs improved dyslipidemia, the altered cardiac injury biomarkers (p ≤ 0.0001), downregulated Janus kinase 2/signal transducer and activator of transcription 3(JAK2/STAT3)/inducible Nitric oxide synthase (iNOS) and iNOS/Apoptosis signaling pathways. This was associated with improved cardiac dysfunction (impaired left ventricular performance and decreased contractility index). Our results show that MSCs ameliorate cardiac dysfunction associated with diabetic cardiomyopathy by lowering dyslipidemia and insulin resistance, inhibiting oxidative stress, and inflammation, downregulating JAK2/STAT3/iNOS and iNOS/Apoptosis signaling pathways.
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Affiliation(s)
| | - Ayed A Shati
- Department of Child Health, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Saif Aboud Alqahtani
- Department of Internal Medicine, College of Medicine, King Khalid University, Abha, Saudi Arabia
| | - Hasnaa A Ebrahim
- Department of Basic Medical Sciences, College of Medicine, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Hailah M Almohaimeed
- Department of Basic Medical Sciences, College of Medicine, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Asmaa M ShamsEldeeen
- Department of Physiology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mohamed A Haidara
- Department of Physiology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Samaa S Kamar
- Department of Histology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo, Egypt; Department of Histology, Armed Forces College of Medicine
| | - Amal F Dawood
- Department of Basic Medical Sciences, College of Medicine, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
| | - Mahmoud H El-Bidawy
- Department of Physiology, Kasr Al-Aini Faculty of Medicine, Cairo University, Cairo, Egypt; Department of BMS, Physiology Division, College of Medicine, Prince Sattam bin Abdulaziz University, Al-Kharj, 11942, Saudi Arabia
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Mirnic J, Djuric M, Brkic S, Gusic I, Stojilkovic M, Tadic A, Veljovic T. Pathogenic Mechanisms That May Link Periodontal Disease and Type 2 Diabetes Mellitus-The Role of Oxidative Stress. Int J Mol Sci 2024; 25:9806. [PMID: 39337292 PMCID: PMC11432179 DOI: 10.3390/ijms25189806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2024] [Revised: 09/04/2024] [Accepted: 09/09/2024] [Indexed: 09/30/2024] Open
Abstract
Given the posited role of oxidative stress in the pathogenesis of both periodontitis and type 2 diabetes mellitus (T2DM), it may also serve as a link between these highly prevalent chronic inflammatory diseases. This view is supported by an ample body of evidence indicating that the severity and progression of periodontitis is in part driven by diabetes, while periodontal infection may hinder the attainment of adequate glycemic control in diabetic patients. Thus, this review focuses on the potential synergistic interactions along the oxidative stress-inflammation pathway characterizing both conditions. Because periodontitis and T2DM share the same risk factors and compromise patients' quality of life, to develop effective strategies for combatting both conditions, their mutual influence needs to be explored.
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Affiliation(s)
- Jelena Mirnic
- Department of Dental Medicine, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.S.); (T.V.)
| | - Milanko Djuric
- Dentistry Clinic of Vojvodina, Department of Dental Medicine, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.D.); (I.G.); (A.T.)
| | - Snezana Brkic
- Clinic for Infectious Diseases, Clinical Centre of Vojvodina, Department of Infectious Diseases, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia;
| | - Ivana Gusic
- Dentistry Clinic of Vojvodina, Department of Dental Medicine, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.D.); (I.G.); (A.T.)
| | - Marija Stojilkovic
- Department of Dental Medicine, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.S.); (T.V.)
| | - Ana Tadic
- Dentistry Clinic of Vojvodina, Department of Dental Medicine, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.D.); (I.G.); (A.T.)
| | - Tanja Veljovic
- Department of Dental Medicine, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia; (M.S.); (T.V.)
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Panchagnula N, Brasher WP. Hyperglycemia and Venous Thromboembolism. Diagnostics (Basel) 2024; 14:1994. [PMID: 39272778 PMCID: PMC11393887 DOI: 10.3390/diagnostics14171994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 09/02/2024] [Accepted: 09/04/2024] [Indexed: 09/15/2024] Open
Abstract
Patients with diabetes mellitus (DM) have chronically increased blood glucose and multiple physiologic alterations that place them at elevated risk for vascular disease. Traditionally, this vascular risk has mainly referred to chronic atherosclerosis and embolic arterial disease. Retrospective studies have suggested an increased risk of a pulmonary embolism (PE) and deep vein thrombosis (DVT), collectively termed venous thromboembolism (VTE), in patients with DM, but this association has been difficult to demonstrate with comorbidities such as obesity in meta-analysis. Clinical studies have demonstrated worse outcomes for patients with DM who suffer from VTE. In vitro studies show multiple physiologic abnormalities with chronic inflammation, endothelial dysfunction, dysfunction in the coagulation cascade, as well as other changes that drive a vicious cycle of hypercoagulability. Aggressive medical management of DM can improve vascular outcomes, and some anti-hyperglycemic therapies may modify VTE risk as well. Anticoagulation strategies are similar for patients with DM, but with some added considerations, such as high rates of comorbid renal dysfunction. More research is needed to definitively categorize DM as a risk factor for VTE and elucidate specific therapeutic strategies.
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Affiliation(s)
- Neha Panchagnula
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - William Philip Brasher
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
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Wang Y, Zou J, Zhou H. N6-methyladenine RNA methylation epigenetic modification and diabetic microvascular complications. Front Endocrinol (Lausanne) 2024; 15:1462146. [PMID: 39296713 PMCID: PMC11408340 DOI: 10.3389/fendo.2024.1462146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Accepted: 08/20/2024] [Indexed: 09/21/2024] Open
Abstract
N6-methyladensine (m6A) has been identified as the best-characterized and the most abundant mRNA modification in eukaryotes. It can be dynamically regulated, removed, and recognized by its specific cellular components (respectively called "writers," "erasers," "readers") and have become a hot research field in a variety of biological processes and diseases. Currently, the underlying molecular mechanisms of m6A epigenetic modification in diabetes mellitus (DM) and diabetic microvascular complications have not been extensively clarified. In this review, we focus on the effects and possible mechanisms of m6A as possible potential biomarkers and therapeutic targets in the treatment of DM and diabetic microvascular complications.
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Affiliation(s)
- Yuanyuan Wang
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jiayun Zou
- Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Hua Zhou
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang, China
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10
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Fridayana FR, Ock J, Liu FY, Niloofar L, Vo MN, Huang Y, Yin GN, Ryu JK. Heparin-binding epidermal growth factor-like growth factor improves erectile function in streptozotocin-induced diabetic mice. J Sex Med 2024; 21:751-761. [PMID: 39033084 DOI: 10.1093/jsxmed/qdae079] [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: 02/10/2024] [Revised: 06/05/2024] [Accepted: 06/18/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND Heparin-binding epidermal growth factor-like growth factor (HB-EGF) serves as a pro-angiogenic factor; however, there is to our knowledge currently no reported research on the relationship between HB-EGF and diabetic erectile dysfunction (ED). AIM In this study we aimed to determine whether HB-EGF can improve the erectile function of streptozotocin-induced diabetic mice and to explore the related mechanisms. METHODS Eight-week-old male C57BL/6 mice were used for diabetes induction. Diabetes mellitus (DM) was induced by low-dose injections of streptozotocin (50 mg/kg) for 5 consecutive days. Eight weeks after streptozotocin injections, DM was determined by measuring blood glucose and body weight. Diabetic mice were treated with two intracavernous administrations of phosphate-buffered saline (20 μL) or various doses of HB-EGF (days -3 and 0; 1, 5, and 10 μg in 20 μL of phosphate-buffered saline). The angiogenesis effect of HB-EGF was confirmed by tube formation and migration assays in mouse cavernous endothelial cells and mouse cavernous pericytes under high-glucose conditions. Erectile function was measured by electrical stimulation of the cavernous nerve, as well as histological examination and Western blot analysis for mechanism assessment. OUTCOMES In vitro angiogenesis, cell proliferation, in vivo intracavernous pressure, neurovascular regeneration, cavernous permeability, and survival signaling were the outcomes measured. RESULTS Expression of HB-EGF was reduced under diabetic conditions. Exogenous HB-EGF induced angiogenesis in mouse cavernous endothelial cells and mouse cavernous pericytes under high-glucose conditions. Erectile function was decreased in the DM group, whereas administration of HB-EGF resulted in a significant improvement of erectile function (91% of the age-matched control group) in association with increased neurovascular content, including cavernous endothelial cells, pericytes, and neuronal cells. Histological and Western blot analyses revealed a significant increase in the permeability of the corpus cavernosum in DM mice, which was attenuated by HB-EGF treatment. The protein expression of phospho-Akt Ser473 and phosphorylated endothelial nitric oxide synthase Ser1177 increased after HB-EGF treatment. CLINICAL IMPLICATIONS The use of HB-EGF may be an effective strategy to treat ED associated with DM or other neurovascular diseases. STRENGTHS AND LIMITATIONS Similarly to other pro-angiogenic factors, HB-EGF has dual roles in vascular and neuronal development. Our study focused on broadly evaluating the role of HB-EGF in diabetic ED. In view of the properties of HB-EGF as an angiogenic factor, its dose concentration should be strictly controlled to avoid potential side effects. CONCLUSION In the diabetic ED mouse model in this study erectile function was improved by HB-EGF, which may provide new treatment strategies for patients with ED who do not respond to phosphodiesterase 5 Inhibitors.
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Affiliation(s)
- Fitri Rahma Fridayana
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon 22332, Republic of Korea
| | - Jiyeon Ock
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Fang-Yuan Liu
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Lashkari Niloofar
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon 22332, Republic of Korea
| | - Minh Nhat Vo
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Yan Huang
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon 22332, Republic of Korea
| | - Guo Nan Yin
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon 22332, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon 22332, Republic of Korea
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Zhang Y, Chai S, Dai H, Chen X, Meng Z, Ying X. Vascular endothelial function and its response to moderate-intensity aerobic exercise in trained and untrained healthy young men. Sci Rep 2024; 14:20450. [PMID: 39242762 PMCID: PMC11379850 DOI: 10.1038/s41598-024-71471-7] [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: 06/29/2024] [Accepted: 08/28/2024] [Indexed: 09/09/2024] Open
Abstract
30 min of moderate-intensity aerobic exercise per day is recommended, but the response and adaptation of endothelial function (EF) to this exercise remains controversial. The purpose of this study was to determine the changes in EF in endurance trained and untrained individuals before and after this exercise and to compare the differences between trained and untrained individuals. Twelve endurance-trained male college athletes (trained group) and 12 untrained male college students (untrained group) performed a 30-min run at an intensity of 60% VO2max. Brachial artery flow-mediated dilation (FMD) was measured before exercise, 30 min and 60 min after exercise, and the following morning. Resting diameter and maximum diameter showed large time effects (p < 0.001, η2 = 0.533; p < 0.001, η2 = 0.502). Resting diameters at 30 and 60 min after exercise were higher than before exercise in both the untrained and trained groups (p < 0.05), and maximum diameters at 30 min after exercise were higher than before exercise in both the untrained and trained groups (p < 0.01). Resting diameter and maximum diameter also exhibited some group effects (p = 0.055, η2 = 0.157; p = 0.041, η2 = 0.176). Resting diameters and maximum diameters were higher in the trained group than in the untrained group before exercise (p < 0.05). FMD (%) showed no time, group, or time-group interaction effects. 30 min of moderate-intensity aerobic exercise can increase resting and maximal arterial diameters in both trained and untrained young men, but has no effect on FMD. Long-term endurance training has the potential to increase resting and maximal arterial diameters in young men, but not necessarily FMD.
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Affiliation(s)
- Yong Zhang
- School of Medicine, Shaoxing University, Shaoxing, China
| | - Shiyi Chai
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Hailun Dai
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Xiaofei Chen
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Zhaofeng Meng
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China.
| | - Xiaofang Ying
- School of Business, Shaoxing University, Shaoxing, China.
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12
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Zhang J, Ma K, Luo Z, Wang G, Feng Z, Huang Y, Fei K, Liu Y, Xia H, Yuan J, Xiao P. Combining functional and morphological retinal vascular characteristics achieves high-precision diagnosis of mild non-proliferative diabetic retinopathy. J Transl Med 2024; 22:798. [PMID: 39198867 PMCID: PMC11360493 DOI: 10.1186/s12967-024-05597-7] [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: 10/23/2023] [Accepted: 08/10/2024] [Indexed: 09/01/2024] Open
Abstract
BACKGROUND To explore the functional and morphological variations of retinal vessels in diabetes with no clinically detectable retinopathy (NDR) and mild non-proliferative diabetic retinopathy (NPDR) and to establish a high-performance mild NPDR diagnostic model. METHODS Normal subjects and type 2 diabetes patients with NDR and mild NPDR were recruited. Oxygen-saturation-related functional parameter (optical density ratio ODR) and morphological characteristics (fractal dimension Df, vessel area rate VAR, mean vascular diameter Dm, vessel tortuosity τ) of different vascular areas were extracted with single fundus photography and comprehensively analyzed among groups. An interpretable model combining marine predator algorithm (MPA) and support vector machine (SVM) based on characteristic selection was proposed for mild NPDR diagnosis. RESULTS A total of 91 NDR subjects, 75 mild NPDR subjects, and 111 sex- and age-matched normal controls were analyzed. Increased main vessels ODR, while lower VAR of all areas except outer ring macula, lower Dm of all vessels and decreased τ of all areas were associate with NDR (e.g. main vessels ODR: OR [95%CI] 1.42[1.07-1.89], full macula τ:0.53[0.38-0.74]). Increased ODR of all areas, higher Dm of all areas except inner ring macula, increased inner ring macula τ, while decreased Df of full and inner ring macula, lower VAR of all areas were associate with mild NPDR (e.g. main vessels ODR:5.68[3.03-10.65], inner ring macula VAR: 0.48[0.33-0.69]). The MPA-SVM model with selected characteristics obtained the best diagnosis performance (AUC:0.940 ± 0.014; Accuracy:90.4 ± 3.9%; Sensitivity:89.2 ± 6.4%; Specificity:91.3 ± 6.4%). CONCLUSIONS More significant retinal vascular variations are associate with the incidence of mild NPDR than NDR. High-precision mild NPDR diagnosis is achieved combining the morphological and functional vascular characteristics based on characteristic selection.
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Affiliation(s)
- Jinze Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China
| | - Ke Ma
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China
- Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China
| | - Zhongzhou Luo
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China
| | - Gengyuan Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China
| | - Ziqing Feng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China
| | - Yuancong Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China
| | - Keyi Fei
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China
| | - Yushuang Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China
| | - Honghui Xia
- Department of Ophthalmology, Zhaoqing Gaoyao People's Hospital, Zhaoqing, China
| | - Jin Yuan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China.
| | - Peng Xiao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Sun Yat-sen University, Guangzhou, China.
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13
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Devasia AG, Shanmugham M, Ramasamy A, Bellanger S, Parry LJ, Leo CH. Therapeutic potential of relaxin or relaxin mimetics in managing cardiovascular complications of diabetes. Biochem Pharmacol 2024; 229:116507. [PMID: 39182735 DOI: 10.1016/j.bcp.2024.116507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 08/20/2024] [Accepted: 08/22/2024] [Indexed: 08/27/2024]
Abstract
Diabetes mellitus is a metabolic disease with an escalating global prevalence. Despite the abundance and relative efficacies of current therapeutic approaches, they primarily focus on attaining the intended glycaemic targets, but patients ultimately still suffer from various diabetes-associated complications such as retinopathy, nephropathy, cardiomyopathy, and atherosclerosis. There is a need to explore innovative and effective diabetic treatment strategies that not only address the condition itself but also combat its complications. One promising option is the reproductive hormone relaxin, an endogenous ligand of the RXFP1 receptor. Relaxin is known to exert beneficial actions on the cardiovascular system through its vasoprotective, anti-inflammatory and anti-fibrotic effects. Nevertheless, the native relaxin peptide exhibits a short biological half-life, limiting its therapeutic potential. Recently, several relaxin mimetics and innovative delivery technologies have been developed to extend its biological half-life and efficacy. The current review provides a comprehensive landscape of the cardiovascular effects of relaxin, focusing on its potential therapeutic applications in managing complications associated with diabetes. The latest advancements in the development of relaxin mimetics and delivery methods for the treatment of cardiometabolic disorders are also discussed.
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Affiliation(s)
- Arun George Devasia
- Science, Math & Technology, Singapore University of Technology & Design, Singapore 487372, Singapore; Genome Institute of Singapore (GIS), Agency for Science Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore 138672, Singapore
| | - Meyammai Shanmugham
- Science, Math & Technology, Singapore University of Technology & Design, Singapore 487372, Singapore; A*STAR Skin Research Labs (A*SRL), Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Adaikalavan Ramasamy
- Genome Institute of Singapore (GIS), Agency for Science Technology and Research (A*STAR), 60 Biopolis Street, Genome, Singapore 138672, Singapore
| | - Sophie Bellanger
- A*STAR Skin Research Labs (A*SRL), Skin Research Institute of Singapore (SRIS), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Laura J Parry
- School of Biological Sciences, The University of Adelaide, Adelaide, SA, Australia
| | - Chen Huei Leo
- Department of Biomedical Engineering, College of Design & Engineering, National University of Singapore, Singapore 117576, Singapore.
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14
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Sun Y, Dinenno FA, Tang P, Kontaridis MI. Protein tyrosine phosphatase 1B in metabolic and cardiovascular diseases: from mechanisms to therapeutics. Front Cardiovasc Med 2024; 11:1445739. [PMID: 39238503 PMCID: PMC11374623 DOI: 10.3389/fcvm.2024.1445739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Accepted: 08/05/2024] [Indexed: 09/07/2024] Open
Abstract
Protein Tyrosine Phosphatase 1B (PTP1B) has emerged as a significant regulator of metabolic and cardiovascular disease. It is a non-transmembrane protein tyrosine phosphatase that negatively regulates multiple signaling pathways integral to the regulation of growth, survival, and differentiation of cells, including leptin and insulin signaling, which are critical for development of obesity, insulin resistance, type 2 diabetes, and cardiovascular disease. Given PTP1B's central role in glucose homeostasis, energy balance, and vascular function, targeted inhibition of PTP1B represents a promising strategy for treating these diseases. However, challenges, such as off-target effects, necessitate a focus on tissue-specific approaches, to maximize therapeutic benefits while minimizing adverse outcomes. In this review, we discuss molecular mechanisms by which PTP1B influences metabolic and cardiovascular functions, summarize the latest research on tissue-specific roles of PTP1B, and discuss the potential for PTP1B inhibitors as future therapeutic agents.
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Affiliation(s)
- Yan Sun
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, United States
| | - Frank A Dinenno
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, United States
| | - Peiyang Tang
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, United States
| | - Maria I Kontaridis
- Department of Biomedical Research and Translational Medicine, Masonic Medical Research Institute, Utica, NY, United States
- Department of Medicine, Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, MA, United States
- Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA, United States
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15
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Edgerton-Fulton M, Abdul Y, Jamil S, Ergul A. Endothelin-1 (ET-1) contributes to senescence and phenotypic changes in brain pericytes in diabetes-mimicking conditions. Clin Sci (Lond) 2024; 138:1009-1022. [PMID: 39106080 DOI: 10.1042/cs20240328] [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: 02/21/2024] [Revised: 08/03/2024] [Accepted: 08/06/2024] [Indexed: 08/07/2024]
Abstract
Diabetes mediates endothelial dysfunction and increases the risk of Alzheimer's disease and related dementias. Diabetes also dysregulates the ET system. ET-1-mediated constriction of brain microvascular pericytes (BMVPCs) has been shown to contribute to brain hypoperfusion. Cellular senescence, a process that arrests the proliferation of harmful cells and instigates phenotypical changes and proinflammatory responses in endothelial cells that impact their survival and function. Thus, we hypothesized that ET-1 mediates BMVPC senescence and phenotypical changes in diabetes-like conditions. Human BMVPCs were incubated in diabetes-like conditions with or without ET-1 (1 µmol/L) for 3 and 7 days. Hydrogen peroxide (100 µmol/L H2O2) was used as a positive control for senescence and to mimic ischemic conditions. Cells were stained for senescence-associated β-galactosidase or processed for immunoblotting and quantitative real-time PCR analyses. In additional experiments, cells were stimulated with ET-1 in the presence or absence of ETA receptor antagonist BQ-123 (20 μmol/L) or ETB receptor antagonist BQ-788 (20 μmol/L). ET-1 stimulation increased β-galactosidase accumulation which was prevented by BQ-123. ET-1 also increased traditional senescence marker p16 protein and pericyte-specific senescence markers, TGFB1i1, PP1CA, and IGFBP7. Furthermore, ET-1 stimulated contractile protein α-SMA and microglial marker ostepontin in high glucose suggesting a shift toward an ensheathing or microglia-like phenotype. In conclusion, ET-1 triggers senescence, alters ETA and ETB receptors, and causes phenotypical changes in BMVPCs under diabetes-like conditions. These in vitro findings need to be further studied in vivo to establish the role of ETA receptors in the progression of pericyte senescence and phenotypical changes in VCID.
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Affiliation(s)
- Mia Edgerton-Fulton
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina, Charleston, SC, U.S.A
| | - Yasir Abdul
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina, Charleston, SC, U.S.A
| | - Sarah Jamil
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina, Charleston, SC, U.S.A
| | - Adviye Ergul
- Department of Pathology & Laboratory Medicine, Medical University of South Carolina, Charleston, SC, U.S.A
- Ralph H Johnson VA Health Care System, Medical University of South Carolina, Charleston, SC, U.S.A
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16
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Gupta AK, Shemer A, Economopoulos V, Talukder M. Diabetic Foot and Fungal Infections: Etiology and Management from a Dermatologic Perspective. J Fungi (Basel) 2024; 10:577. [PMID: 39194903 DOI: 10.3390/jof10080577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 08/07/2024] [Accepted: 08/13/2024] [Indexed: 08/29/2024] Open
Abstract
Diabetes Mellitus (DM) is a significant global concern. Many diabetic patients will experience complications due to angiopathy, neuropathy, and immune dysfunction, namely diabetic foot ulcers (DFU) and diabetic foot infections (DFI), which can result in lower limb amputation and potentially death. The prevalence of common superficial fungal infections, such as tinea pedis and onychomycosis, can directly increase a diabetic patient's risk of developing both DFU and DFI. In this review article, we discuss the etiology of diabetic foot complications as well as considerations for both screening and management. We also discuss the role of the dermatologist within a multidisciplinary care team in prescribing and managing treatments for tinea pedis and onychomycosis infections within this patient population. We believe that reducing the burden of these fungal infections in the context of the diabetic foot will help reduce DFU and DFI complications and their associated morbidity and mortality.
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Affiliation(s)
- Aditya K Gupta
- Division of Dermatology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 3H2, Canada
- Mediprobe Research Inc., London, ON N5X 2P1, Canada
| | - Avner Shemer
- Department of Dermatology, Sheba Medical Center, Tel-Hashomer, Ramat-Gan 52621, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Vasiliki Economopoulos
- Mediprobe Research Inc., London, ON N5X 2P1, Canada
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 3K7, Canada
| | - Mesbah Talukder
- Mediprobe Research Inc., London, ON N5X 2P1, Canada
- School of Pharmacy, BRAC University, Dhaka 1212, Bangladesh
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17
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Zhang TY, Wang XN, Kuang HY, Zhang ZM, Xu CY, Zhao KQ, Ha-Si WY, Zhang C, Hao M. Association between all-cause mortality and vascular complications in U.S. adults with newly diagnosed type 2 diabetes (NHANES 1999-2018). Acta Diabetol 2024:10.1007/s00592-024-02342-w. [PMID: 39096329 DOI: 10.1007/s00592-024-02342-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 07/15/2024] [Indexed: 08/05/2024]
Abstract
AIMS The impact of macrovascular and microvascular complications, the common vascular complications of type 2 diabetes, on long-term mortality has been well evaluated, but the impact of different complications of newly diagnosed type 2 diabetes (diagnosed within the past 2 years) on long-term mortality has not been reported. We aimed to investigate the relationship between all-cause mortality and vascular complications in U.S. adults (aged ≥ 20 years) with newly diagnosed type 2 diabetes. METHODS We used data from the 1999-2018 National Health and Nutritional Examination Surveys (NHANES). Cox proportional hazard models was used to assess hazard ratios (HR) and 95% confidence intervals for all-cause mortality. RESULTS A total of 928 participants were enrolled in this study. At a mean follow-up of 10.8 years, 181 individuals died. In the fully adjusted model, the hazard ratio (HR) (95% confidence interval [CI]) of all-cause mortality for individuals with any single complication compared with those with newly diagnosed type 2 diabetes without complications was 2.24 (1.37, 3.69), and for individuals with two or more complications was 5.34 (3.01, 9.46).Co-existing Chronic kidney disease (CKD) and diabetic retinopathy (DR) at baseline were associated with the highest risk of death (HR 6.07[2.92-12.62]), followed by CKD and cardiovascular disease (CVD) (HR 4.98[2.79-8.89]) and CVD and DR (HR 4.58 [1.98-10.57]). CONCLUSION The presence of single and combined diabetes complications exerts a long-term synergistic adverse impact on overall mortality in newly diagnosed U.S. adults with type 2 diabetes, underscoring the importance of comprehensive complication screening to enhance risk stratification and treatment.
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Affiliation(s)
- Tian-Yu Zhang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, People's Republic of China
| | - Xue-Ning Wang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, People's Republic of China
| | - Hong-Yu Kuang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, People's Republic of China
| | - Zi-Meng Zhang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, People's Republic of China
| | - Cheng-Ye Xu
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, People's Republic of China
| | - Kang-Qi Zhao
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, People's Republic of China
| | - Wu-Ying Ha-Si
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, People's Republic of China
| | - Cong Zhang
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, People's Republic of China
| | - Ming Hao
- Department of Endocrinology, The First Affiliated Hospital of Harbin Medical University, 23 You Zheng Street, Harbin, 150001, People's Republic of China.
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18
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Takamizawa R, Hotta K, Fujii Y, Ikegami R, Hitosugi N, Inoue T, Tamiya H, Tsubaki A. Transcapillary PO 2 Gradients in Contracting Muscles of Type I Diabetic Rats. Microcirculation 2024; 31:e12870. [PMID: 38805591 DOI: 10.1111/micc.12870] [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: 02/23/2024] [Revised: 05/04/2024] [Accepted: 05/13/2024] [Indexed: 05/30/2024]
Abstract
OBJECTIVE This study aimed to clarify the effect of Type I diabetes (DIA) on transcapillary PO2 gradients, which are oxygen-driving factors between the blood and the interstitium, in the contracting muscle of rats. METHODS Wistar male rats were divided into the diabetic (streptozocin i.p.) and sham groups. Microvascular and interstitial PO2 were measured in the extensor digitorum longus muscle during electrical stimulation-induced muscle contraction, using the phosphorescence quenching method. Transcapillary PO2 gradient, ΔPO2, was calculated as microvascular minus interstitial PO2. RESULTS Resting microvascular PO2 was higher in the diabetic group than in the sham group (6.3 ± 1.7 vs. 4.7 ± 0.9 mmHg, p < 0.05) and remained for 180 s. Interstitial PO2 from rest to muscle contraction did not differ between the groups. The ΔPO2 was higher in the diabetic group than in the sham group at rest and during muscle contraction (4.03 ± 1.42 vs. 2.46 ± 0.90 mmHg at rest; 3.67 ± 1.51 vs. 2.22 ± 0.65 mmHg during muscle contraction, p < 0.05). Marked muscle atrophy was observed in the diabetic group. CONCLUSION DIA increased microvascular and transcapillary PO2 gradients in the skeletal muscle. The enhanced PO2 gradients were maintained from rest to muscle contraction in diabetic muscle.
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Affiliation(s)
- Ren Takamizawa
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Niigata, Japan
| | - Kazuki Hotta
- Department of Rehabilitation, Kitasato University School of Allied Health Sciences, Sagamihara, Kanagawa, Japan
- Department of Rehabilitation Sciences, Kitasato University Graduate School of Medical Sciences, Sagamihara, Kanagawa, Japan
| | - Yutaka Fujii
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Niigata, Japan
| | - Ryo Ikegami
- Department of Engineering Science, University of Electro-Communications, Chofu, Tokyo, Japan
| | - Naoki Hitosugi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Niigata, Japan
| | - Tatsuro Inoue
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Niigata, Japan
| | - Hajime Tamiya
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Niigata, Japan
| | - Atsuhiro Tsubaki
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Niigata, Japan
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Hirsch A, Peled T, Schlesinger S, Sela HY, Grisaru-Granovsky S, Rottenstreich M. Impact of gestational diabetes mellitus on neonatal outcomes in small for gestational age infants: a multicenter retrospective study. Arch Gynecol Obstet 2024; 310:685-693. [PMID: 38874779 PMCID: PMC11258160 DOI: 10.1007/s00404-024-07587-y] [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: 03/27/2024] [Accepted: 06/04/2024] [Indexed: 06/15/2024]
Abstract
OBJECTIVE To evaluate obstetric and perinatal outcomes among small for gestational age (SGA) infants born to patients diagnosed with Gestational diabetes mellitus (GDM). MATERIALS AND METHODS A multicenter retrospective cohort study between 2005 and 2021. The perinatal outcomes of SGA infants born to patients with singleton pregnancy and GDM were compared to SGA infants born to patients without GDM. The primary outcome was a composite adverse neonatal outcome. Infants with known structural/genetic abnormalities or infections were excluded. A univariate analysis was conducted followed by a multivariate analysis (adjusted odds ratio [95% confidence interval]). RESULTS During the study period, 11,662 patients with SGA infants met the inclusion and exclusion criteria. Of these, 417 (3.6%) SGA infants were born to patients with GDM, while 11,245 (96.4%) were born to patients without GDM. Overall, the composite adverse neonatal outcome was worse in the GDM group (53.7% vs 17.4%, p < 0.01). Specifically, adverse neonatal outcomes such as a 5 min Apgar score < 7, meconium aspiration, seizures, and hypoglycemia were independently associated with GDM among SGA infants. In addition, patients with GDM and SGA infants had higher rates of overall and spontaneous preterm birth, unplanned cesarean, and postpartum hemorrhage. In a multivariate logistic regression assessing the association between GDM and neonatal outcomes, GDM was found to be independently associated with the composite adverse neonatal outcome (aOR 4.26 [3.43-5.3]), 5 min Apgar score < 7 (aOR 2 [1.16-3.47]), meconium aspiration (aOR 4.62 [1.76-12.13]), seizures (aOR 2.85 [1.51-5.37]) and hypoglycemia (aOR 16.16 [12.79-20.41]). CONCLUSIONS Our study demonstrates that GDM is an independent risk factor for adverse neonatal outcomes among SGA infants. This finding underscores the imperative for tailored monitoring and management strategies in those pregnancies.
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Affiliation(s)
- Ayala Hirsch
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Affiliated with the Hebrew University School of Medicine, 12 Bayit Street, 91031, Jerusalem, Israel
| | - Tzuria Peled
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Affiliated with the Hebrew University School of Medicine, 12 Bayit Street, 91031, Jerusalem, Israel.
| | - Shaked Schlesinger
- Department of Military Medicine and "Tzameret", Faculty of Medicine, Israel Defense Forces, Hebrew University of Jerusalem, and Medical Corps, Jerusalem, Israel
| | - Hen Y Sela
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Affiliated with the Hebrew University School of Medicine, 12 Bayit Street, 91031, Jerusalem, Israel
| | - Sorina Grisaru-Granovsky
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Affiliated with the Hebrew University School of Medicine, 12 Bayit Street, 91031, Jerusalem, Israel
| | - Misgav Rottenstreich
- Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Affiliated with the Hebrew University School of Medicine, 12 Bayit Street, 91031, Jerusalem, Israel
- Department of Nursing, Jerusalem College of Technology, Jerusalem, Israel
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20
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Wang X, He B. Endothelial dysfunction: molecular mechanisms and clinical implications. MedComm (Beijing) 2024; 5:e651. [PMID: 39040847 PMCID: PMC11261813 DOI: 10.1002/mco2.651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 06/19/2024] [Accepted: 06/19/2024] [Indexed: 07/24/2024] Open
Abstract
Cardiovascular disease (CVD) and its complications are a leading cause of death worldwide. Endothelial dysfunction plays a crucial role in the initiation and progression of CVD, serving as a pivotal factor in the pathogenesis of cardiovascular, metabolic, and other related diseases. The regulation of endothelial dysfunction is influenced by various risk factors and intricate signaling pathways, which vary depending on the specific disease context. Despite numerous research efforts aimed at elucidating the mechanisms underlying endothelial dysfunction, the precise molecular pathways involved remain incompletely understood. This review elucidates recent research findings on the pathophysiological mechanisms involved in endothelial dysfunction, including nitric oxide availability, oxidative stress, and inflammation-mediated pathways. We also discuss the impact of endothelial dysfunction on various pathological conditions, including atherosclerosis, heart failure, diabetes, hypertension, chronic kidney disease, and neurodegenerative diseases. Furthermore, we summarize the traditional and novel potential biomarkers of endothelial dysfunction as well as pharmacological and nonpharmacological therapeutic strategies for endothelial protection and treatment for CVD and related complications. Consequently, this review is to improve understanding of emerging biomarkers and therapeutic approaches aimed at reducing the risk of developing CVD and associated complications, as well as mitigating endothelial dysfunction.
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Affiliation(s)
- Xia Wang
- Department of CardiologyShanghai Chest Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Ben He
- Department of CardiologyShanghai Chest Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
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Liu C, Yang J, Li H, Deng Y, He P, Zhang J, Zhang M. Association between oxidative balance score and diabetic kidney disease, low estimated glomerular filtration rate and albuminuria in type 2 diabetes mellitus patients: a cross-sectional study. Front Endocrinol (Lausanne) 2024; 15:1412823. [PMID: 39145317 PMCID: PMC11322072 DOI: 10.3389/fendo.2024.1412823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 07/16/2024] [Indexed: 08/16/2024] Open
Abstract
Objective The oxidative balance score (OBS) is a comprehensive concept that includes 20 oxidative stressors and can be used to assess individual pro-oxidant versus antioxidant exposure, and the aim of the present study was to investigate the association between OBS and the risk of diabetic kidney disease (DKD), low estimated glomerular filtration rate (low-eGFR) and albuminuria in patients with diabetes mellitus (DM). Methods This cross-sectional study included nationally representative consecutive National Health and Nutrition Examination Survey DM patients aged 18 years and older from 2003-2018. The continuous variable OBS was converted into categorical variables by quartiles, and weighted multiple logistic regression analyses and restricted triple spline models were used to explore the relationships. We also performed subgroup analyses and interaction tests to verify the stability of the results. Results A total of 5389 participants were included, representing 23.6 million non-institutionalized US residents. The results from both multivariate logistic regression analysis and restricted cubic spline models indicated that OBS and dietary OBS levels were negatively associated with the risk of DKD, low-eGFR, and albuminuria, without finding a significant correlation between lifestyle OBS and these clinical outcomes. Compared to the lowest OBS quartile group, the prevalence risk of DKD (OR = 0.61, 95% CI: 0.46-0.80), low-eGFR (OR = 0.46, 95% CI: 0.33-0.64) and albuminuria (OR = 0.68, 95% CI: 0.51-0.92) decreased by 39%, 54% and 32%, respectively, in the highest OBS quartile group. The results remained stable in subgroup analyses and no interaction between subgroups was found. Conclusion Higher levels of OBS and dietary OBS were associated with a lower risk of DKD, low-eGFR, and albuminuria. These findings provided preliminary evidence for the importance of adhering to an antioxidant-rich diet and lifestyle among individuals with diabetes.
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Affiliation(s)
- Cong Liu
- Department of Nephrology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Jiju Yang
- Graduate School of Beijing University of Chinese Medicine, Beijing, China
| | - Hongdian Li
- Department of Nephrology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Yuanyuan Deng
- Department of Nephrology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
| | - Pengfei He
- Department of Nephrology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Jiao Zhang
- Department of Nephrology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Mianzhi Zhang
- Department of Nephrology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing, China
- Department of Nephrology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, China
- Tianjin Famous Chinese Medicine Inheritance Workshop of Mianzhi Zhang, Tianjin, China
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22
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Shen K, Shi Y, Wang X, Leung SW. Cellular Components of the Blood-Brain Barrier and Their Involvement in Aging-Associated Cognitive Impairment. Aging Dis 2024:AD.202.0424. [PMID: 39122454 DOI: 10.14336/ad.202.0424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Accepted: 07/01/2024] [Indexed: 08/12/2024] Open
Abstract
Human life expectancy has been significantly extended, which poses major challenges to our healthcare and social systems. Aging-associated cognitive impairment is attributed to endothelial dysfunction in the cardiovascular system and neurological dysfunction in the central nervous system. The central nervous system is considered an immune-privileged tissue due to the exquisite protection provided by the blood-brain barrier. The present review provides an overview of the structure and function of blood-brain barrier, extending the cell components of blood-brain barrier from endothelial cells and pericytes to astrocytes, perivascular macrophages and oligodendrocyte progenitor cells. In particular, the pathological changes in the blood-brain barrier in aging, with special focus on the underlying mechanisms and molecular changes, are presented. Furthermore, the potential preventive/therapeutic strategies against aging-associated blood-brain barrier disruption are discussed.
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Affiliation(s)
- Kaiyuan Shen
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yi Shi
- Institute of Clinical Science, Zhongshan Hospital, Fudan University, Shanghai, China
- Key Laboratory of Organ Transplantation, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xin Wang
- Department of Neurology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Susan Ws Leung
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
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23
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Yang X, Wang Y, Li J, Tai Y, Yang K, Lv J, Sun J, Zhang H. From waste to wonder: exploring the hypoglycemic and anti-oxidant properties of corn processing by-products. Front Chem 2024; 12:1433501. [PMID: 39104778 PMCID: PMC11299435 DOI: 10.3389/fchem.2024.1433501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 06/28/2024] [Indexed: 08/07/2024] Open
Abstract
Introduction: The industrial processing of corn (Zeamays L.) generates by-products such as corn silk, straw peels, and straw core, which contribute to adverse environmental impacts. Our study aimed to investigate sustainable approaches for mitigating these effects by evaluating the hypoglycemic potential and mechanisms of ethyl acetate fractions derived from these corn derivatives. Methods: We employed glucose consumption assays, high glucose stress tests, UPLC-QE-Orbitrap-MS analysis, molecular docking, and simulations to assess their components and efficacy. Antioxidant capacities were evaluated using DPPH, FRAP, ABTS, and •OH scavenging assays. Results: Notably, the ethyl acetate fraction extracted from straw peels (SPE) exhibited a high concentration of flavonoids and phenolic compounds along with pronounced hypoglycemic activity and antioxidant capacity. SPE significantly enhanced glucose consumption in insulin-resistant HepG2 cells while protecting HUVECs against damage caused by high glucose levels. Molecular docking analyses confirmed the interaction between active compounds and α-glucosidase as well as α-amylase, while molecular dynamic simulations indicated stability at their binding sites. Discussion: In conclusion, the hypoglycemic and antioxidative properties observed in corn by-products such as straw peels, corn silk, and straw core can be attributed to the inhibition of α-glucosidase and α-amylase activities, coupled with their rich phenolic and flavonoid content. These findings highlight the potential of these by-products for applications in healthcare management and their sustainable utilization, demonstrating significant value in the use of agricultural residues.
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Affiliation(s)
- Xiaoqian Yang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Yuelong Wang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Jingfeng Li
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, China
| | - Yuxing Tai
- Department of Acupuncture and Tuina, Changchun University of Chinese Medicine, Changchun, China
| | - Kunping Yang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Jingwei Lv
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Jiaming Sun
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
| | - Hui Zhang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
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Kamayana JAS, Hamid ARRH, Mahadewa TGB, Sanjaya IGPH, Darmajaya IM, Dewi IGASM. Preconditioning Local Injection of Activated Platelet-Rich Plasma Increases Angiogenesis, VEGF Levels, and Viability of Modified McFarlane Flap in Diabetes-Induced Rats. Arch Plast Surg 2024; 51:432-440. [PMID: 39034974 PMCID: PMC11257746 DOI: 10.1055/a-2317-4520] [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: 10/21/2023] [Accepted: 04/28/2024] [Indexed: 07/23/2024] Open
Abstract
Background The risk of flap necrosis in tissue reconstruction surgery is elevated in patients with vascular disorders, such as diabetes mellitus. Chronic hyperglycemia causes endothelial cell dysfunction and increases inflammatory process, causing vascular insufficiency. Platelet-rich plasma (PRP) contains high levels of platelets, growth factors, and fibrinogens. Its regenerative properties spark interest in supporting flap survival in relation to diabetic complications. Methods Thirty Wistar rats were divided into three groups. The first group included diabetic rats without PRP injection, which underwent flap procedure. The second group included diabetes-induced rats receiving PRP subcutaneous injection 1 day prior to flap procedure. The third group included nondiabetic rats receiving PRP injection 1 day prior to flap procedure. Flap tissue samples were taken on the seventh day to measure vascular endothelial growth factor (VEGF) levels using enzyme-linked immunosorbent assay method; angiogenesis and collagen density were measured from histopathology examination, and flap viability was analyzed using digital measurements. Results Analysis showed that flap viability, angiogenesis, and VEGF levels were significantly higher in the PRP-injected diabetic rats compared with diabetic rats that did not receive PRP. The levels of VEGF, angiogenesis, and viability of flaps in diabetic rats given PRP did not differ significantly compared with nondiabetic rats that received PRP. Conclusion Flap preconditioning through local injection of activated PRP enhances flap viability, VEGF levels and angiogenesis, in random skin flaps in diabetic rats, to the level where it does not differ significantly to nondiabetic rats that were given PRP.
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Affiliation(s)
| | | | | | - I. Gusti Putu Hendra Sanjaya
- Division of Plastic, Reconstructive and Aesthetic Surgery, Department of Surgery, Udayana University, Bali, Indonesia
| | - I. Made Darmajaya
- Division of Paediatric Surgery, Department of Surgery, Udayana University, Bali, Indonesia
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25
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Yao Y, Wang Q, Yang J, Yan Y, Wei W. Prevalence and risk factors of retinal vein occlusion in individuals with diabetes: The kailuan eye study. Diab Vasc Dis Res 2024; 21:14791641241271899. [PMID: 39105547 PMCID: PMC11304485 DOI: 10.1177/14791641241271899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/07/2024] Open
Abstract
PURPOSE The aim of this study was to analyze the incidence of retinal vein occlusion (RVO) in patients with and without diabetes in the population and compare the influencing factors. METHOD The community-based Kailuan Eye Study included 14,440 participants (9835 male, 4605 female) with a mean age of 54.0 ± 13.3 years (range, 20-110 years). They underwent a systemic and ophthalmologic examination. RVO were diagnosed on fundus photographs. RESULT By matching for age and gender, we included a total of 2767 patients each with diabetes and non-diabetes. The prevalence of RVO among patients with and without diabetes was 1.5% and 0.8%, respectively. The prevalence of RVO was higher in patients with diabetes than in patients without diabetes in all age groups. Multifactorial regression analysis showed that only fasting blood glucose levels were significantly different between patients with RVO with or without DM. The occurrence of RVO in the group with diabetes was mainly associated with higher fasting glucose and systolic blood pressure; in the group without diabetes, RVO was mainly associated with higher diastolic blood pressure, Body Mass Index, and lower low-density lipoprotein cholesterol levels. CONCLUSION We found that patients with diabetes have increased risks of RVO. In addition to blood pressure control, we recommend educating patients with diabetes about RVO, to prevent its subsequent occurrence.
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Affiliation(s)
- Yao Yao
- Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Capital Medical University, Beijing Tongren Hospital, Beijing, China
| | - Qian Wang
- Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Capital Medical University, Beijing Tongren Hospital, Beijing, China
| | - Jingyan Yang
- Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Capital Medical University, Beijing Tongren Hospital, Beijing, China
| | - Yanni Yan
- Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Capital Medical University, Beijing Tongren Hospital, Beijing, China
| | - Wenbin Wei
- Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Key Laboratory of Intraocular Tumor Diagnosis and Treatment, Capital Medical University, Beijing Tongren Hospital, Beijing, China
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Kelly KA, Heaps CL, Wu G, Labhasetwar V, Meininger CJ. Nanoparticle-mediated delivery of tetrahydrobiopterin restores endothelial function in diabetic rats. Nitric Oxide 2024; 148:13-22. [PMID: 38642795 DOI: 10.1016/j.niox.2024.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/11/2024] [Accepted: 04/16/2024] [Indexed: 04/22/2024]
Abstract
Endothelial dysfunction, underlying the vascular complications of diabetes and other cardiovascular disorders, may result from uncoupling of endothelial nitric oxide synthase (eNOS) activity due to decreased levels of tetrahydrobiopterin (BH4), a critical co-factor for eNOS. Some clinical trials attempting to deliver exogenous BH4 as a potential therapeutic strategy in vascular disease states have failed due to oxidation of BH4 in the circulation. We sought to develop a means of protecting BH4 from oxidation while delivering it to dysfunctional endothelial cells. Polymeric and solid lipid nanoparticles (NPs) loaded with BH4 were delivered by injection or oral gavage, respectively, to streptozotocin-induced diabetic rats. BH4 was measured in coronary endothelial cells and endothelium-dependent vascular reactivity was assessed in vascular rings. Lymphatic uptake of orally delivered lipid NPs was verified by sampling mesenteric lymph. BH4-loaded polymeric NPs maintained nitric oxide production by cultured endothelial cells under conditions of oxidative stress. BH4-loaded NPs, delivered via injection or ingestion, increased coronary endothelial BH4 concentration and improved endothelium-dependent vasorelaxation in diabetic rats. Pharmacodynamics assessment indicated peak concentration of solid lipid NPs in the systemic bloodstream 6 hours after ingestion, with disappearance noted by 48 hours. These studies support the feasibility of utilizing NPs to deliver BH4 to dysfunctional endothelial cells to increase nitric oxide bioavailability. BH4-loaded NPs could provide an innovative tool to restore redox balance in blood vessels and modulate eNOS-mediated vascular function to reverse or retard vascular disease in diabetes.
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Affiliation(s)
- Katherine A Kelly
- Texas A&M University College of Medicine, Department of Medical Physiology, 8447 Riverside Parkway, Medical Research and Education Building Rm 1341, Bryan, TX, 77807, USA
| | - Cristine L Heaps
- Texas A&M University School of Veterinary Medicine & Biomedical Sciences, Department of Veterinary Physiology & Pharmacology, 4466 TAMU, College Station, TX, 77843-4466, USA
| | - Guoyao Wu
- Texas A&M University College of Medicine, Department of Medical Physiology, 8447 Riverside Parkway, Medical Research and Education Building Rm 1341, Bryan, TX, 77807, USA; Texas A&M University, Department of Animal Science, Kleberg Center Rm 133, 2471 TAMU, College Station, TX, 77843-2471, USA
| | - Vinod Labhasetwar
- Lerner Research Institute, Department of Biomedical Engineering, 9500 Euclid Avenue, Mail Code ND20, Cleveland, OH, 44196, USA
| | - Cynthia J Meininger
- Texas A&M University College of Medicine, Department of Medical Physiology, 8447 Riverside Parkway, Medical Research and Education Building Rm 1341, Bryan, TX, 77807, USA.
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Zhang T, Yi Q, Huang W, Feng J, Liu H. New insights into the roles of Irisin in diabetic cardiomyopathy and vascular diseases. Biomed Pharmacother 2024; 175:116631. [PMID: 38663105 DOI: 10.1016/j.biopha.2024.116631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 04/11/2024] [Accepted: 04/17/2024] [Indexed: 06/03/2024] Open
Abstract
Diabetes mellitus (DM) is a prevalent chronic disease in the 21st century due to increased lifespan and unhealthy lifestyle choices. Extensive research indicates that exercise can play a significant role in regulating systemic metabolism by improving energy metabolism and mitigating various metabolic disorders, including DM. Irisin, a well-known exerkine, was initially reported to enhance energy expenditure by indicating the browning of white adipose tissue (WAT) through peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α) signaling. In this review, we summarize the potential mechanisms underlying the beneficial effects of Irisin on glucose dysmetabolism, including reducing gluconeogenesis, enhancing insulin energy expenditure, and promoting glycogenesis. Additionally, we highlight Irisin's potential to improve diabetic vascular diseases by stimulating nitric oxide (NO) production, reducing oxidative and nitrosative stress, curbing inflammation, and attenuating endothelial cell aging. Furthermore, we discuss the potential of Irisin to improve diabetic cardiomyopathy by preventing cardiomyocyte loss and reducing myocardial hypertrophy and fibrosis. Given Irisin's promising functions in managing diabetic cardiomyopathy and vascular diseases, targeting Irisin for therapeutic purposes could be a fruitful avenue for future research and clinical interventions.
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Affiliation(s)
- Tiandong Zhang
- Collage of Integration of Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Qian Yi
- Department of Physiology, School of Basic Medical Science, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Wenhua Huang
- Collage of Integration of Traditional Chinese and Western Medicine, Southwest Medical University, Luzhou, Sichuan 646000, China; Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, National Key Discipline of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China.
| | - Jianguo Feng
- Anesthesiology and Critical Care Medicine Key Laboratory of Luzhou, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan Province 646000, China.
| | - Huan Liu
- Department of Orthopedics, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, Sichuan 646000, China; The Third People's Hospital of Longmatan District, Luzhou, Sichuan 646000, China.
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Nielsen SF, Duus CL, Buus NH, Bech JN, Mose FH. Effects of Empagliflozin in Type 2 Diabetes With and Without Chronic Kidney Disease and Nondiabetic Chronic Kidney Disease: Protocol for 3 Crossover Randomized Controlled Trials (SiRENA Project). JMIR Res Protoc 2024; 13:e56067. [PMID: 38680116 PMCID: PMC11170048 DOI: 10.2196/56067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024] Open
Abstract
BACKGROUND Sodium-glucose-cotransporter 2 inhibitors (SGLT2is) have revolutionized the treatment of type 2 diabetes mellitus (DM2) and chronic kidney disease (CKD), reducing the risk of cardiovascular and renal end points by up to 40%. The underlying mechanisms are not fully understood. OBJECTIVE The study aims to examine the effects of empagliflozin versus placebo on renal hemodynamics, sodium balance, vascular function, and markers of the innate immune system in patients with DM2, DM2 and CKD, and nondiabetic CKD. METHODS We conducted 3 double-blind, crossover, randomized controlled trials, each with identical study protocols but different study populations. We included patients with DM2 and preserved kidney function (estimated glomerular filtration rate >60 mL/min/1.73 m2), DM2 and CKD, and nondiabetic CKD (both with estimated glomerular filtration rate 20-60 mL/min/1.73 m2). Each participant was randomly assigned to 4 weeks of treatment with either 10 mg of empagliflozin once daily or a matching placebo. After a wash-out period of at least 2 weeks, participants were crossed over to the opposite treatment. End points were measured at the end of each treatment period. The primary end point was renal blood flow measured with 82Rubidium positron emission tomography-computed tomography (82Rb-PET/CT). Secondary end points include glomerular filtration rate measured with 99mTechnetium-diethylene-triamine-pentaacetate (99mTc-DTPA) clearance, vascular function assessed by forearm venous occlusion strain gauge plethysmography, measurements of the nitric oxide (NO) system, water and sodium excretion, body composition measurements, and markers of the complement immune system. RESULTS Recruitment began in April 2021 and was completed in September 2022. Examinations were completed by December 2022. In total, 49 participants completed the project: 16 participants in the DM2 and preserved kidney function study, 17 participants in the DM2 and CKD study, and 16 participants in the nondiabetic CKD study. Data analysis is ongoing. Results are yet to be published. CONCLUSIONS This paper describes the rationale, design, and methods used in a project consisting of 3 double-blind, crossover, randomized controlled trials examining the effects of empagliflozin versus placebo in patients with DM2 with and without CKD and patients with nondiabetic CKD, respectively. TRIAL REGISTRATION EU Clinical Trials Register 2019-004303-12; https://www.clinicaltrialsregister.eu/ctr-search/search?query=2019-004303-12, EU Clinical Trials Register 2019-004447-80; https://www.clinicaltrialsregister.eu/ctr-search/search?query=2019-004447-80, EU Clinical Trials Register 2019-004467-50; https://www.clinicaltrialsregister.eu/ctr-search/search?query=and+2019-004467-50. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/56067.
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Affiliation(s)
- Steffen Flindt Nielsen
- University Clinic in Nephrology and Hypertension, Gødstrup Hospital and Aarhus University, Herning, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Camilla Lundgreen Duus
- University Clinic in Nephrology and Hypertension, Gødstrup Hospital and Aarhus University, Herning, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Niels Henrik Buus
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Jesper Nørgaard Bech
- University Clinic in Nephrology and Hypertension, Gødstrup Hospital and Aarhus University, Herning, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Frank Holden Mose
- University Clinic in Nephrology and Hypertension, Gødstrup Hospital and Aarhus University, Herning, Denmark
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Zhang F, Shan S, Fu C, Guo S, Liu C, Wang S. Advanced Mass Spectrometry-Based Biomarker Identification for Metabolomics of Diabetes Mellitus and Its Complications. Molecules 2024; 29:2530. [PMID: 38893405 PMCID: PMC11173766 DOI: 10.3390/molecules29112530] [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: 02/08/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 06/21/2024] Open
Abstract
Over the years, there has been notable progress in understanding the pathogenesis and treatment modalities of diabetes and its complications, including the application of metabolomics in the study of diabetes, capturing attention from researchers worldwide. Advanced mass spectrometry, including gas chromatography-tandem mass spectrometry (GC-MS/MS), liquid chromatography-tandem mass spectrometry (LC-MS/MS), and ultra-performance liquid chromatography coupled to electrospray ionization quadrupole time-of-flight mass spectrometry (UPLC-ESI-Q-TOF-MS), etc., has significantly broadened the spectrum of detectable metabolites, even at lower concentrations. Advanced mass spectrometry has emerged as a powerful tool in diabetes research, particularly in the context of metabolomics. By leveraging the precision and sensitivity of advanced mass spectrometry techniques, researchers have unlocked a wealth of information within the metabolome. This technology has enabled the identification and quantification of potential biomarkers associated with diabetes and its complications, providing new ideas and methods for clinical diagnostics and metabolic studies. Moreover, it offers a less invasive, or even non-invasive, means of tracking disease progression, evaluating treatment efficacy, and understanding the underlying metabolic alterations in diabetes. This paper summarizes advanced mass spectrometry for the application of metabolomics in diabetes mellitus, gestational diabetes mellitus, diabetic peripheral neuropathy, diabetic retinopathy, diabetic nephropathy, diabetic encephalopathy, diabetic cardiomyopathy, and diabetic foot ulcers and organizes some of the potential biomarkers of the different complications with the aim of providing ideas and methods for subsequent in-depth metabolic research and searching for new ways of treating the disease.
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Affiliation(s)
- Feixue Zhang
- Hubei Key Laboratory of Diabetes and Angiopathy, Medicine Research Institute, Medical College, Hubei University of Science and Technology, Xianning 437100, China; (F.Z.); (C.F.); (S.G.)
| | - Shan Shan
- College of Life Science, National R&D Center for Freshwater Fish Processing, Jiangxi Normal University, Nanchang 330022, China;
| | - Chenlu Fu
- Hubei Key Laboratory of Diabetes and Angiopathy, Medicine Research Institute, Medical College, Hubei University of Science and Technology, Xianning 437100, China; (F.Z.); (C.F.); (S.G.)
- School of Pharmacy, Medical College, Hubei University of Science and Technology, Xianning 437100, China
| | - Shuang Guo
- Hubei Key Laboratory of Diabetes and Angiopathy, Medicine Research Institute, Medical College, Hubei University of Science and Technology, Xianning 437100, China; (F.Z.); (C.F.); (S.G.)
| | - Chao Liu
- Hubei Key Laboratory of Diabetes and Angiopathy, Medicine Research Institute, Medical College, Hubei University of Science and Technology, Xianning 437100, China; (F.Z.); (C.F.); (S.G.)
| | - Shuanglong Wang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang 330013, China
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30
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Wang XX, Wang RJ, Ji HL, Liu XY, Zhang NY, Wang KM, Chen K, Liu PP, Meng N, Jiang CS. Design, synthesis, and evaluation of novel ferrostatin derivatives for the prevention of HG-induced VEC ferroptosis. RSC Med Chem 2024; 15:1198-1209. [PMID: 38665835 PMCID: PMC11042167 DOI: 10.1039/d4md00038b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 02/27/2024] [Indexed: 04/28/2024] Open
Abstract
Ferroptosis is a nonapoptotic, iron-catalyzed form of regulated cell death. It has been shown that high glucose (HG) could induce ferroptosis in vascular endothelial cells (VECs), consequently contributing to the development of various diseases. This study synthesized and evaluated a series of novel ferrostatin-1 (Fer-1) derivatives fused with a benzohydrazide moiety to prevent HG-induced VEC ferroptosis. Several promising compounds showed similar or improved inhibitory effects compared to positive control Fer-1. The most effective candidate 12 exhibited better protection against erastin-induced ferroptosis and high glucose-induced ferroptosis in VECs. Mechanistic studies revealed that compound 12 prevented mitochondrial damage, reduced intracellular ROS accumulation, upregulated the expression of GPX4, and decreased the amounts of ferrous ion, LPO and MDA in VECs. However, compound 12 still exhibited undesirable microsomal stability like Fer-1, suggesting the need for further optimization. Overall, the present findings highlight ferroptosis inhibitor 12 as a potential lead compound for treating ferroptosis-associated vascular diseases.
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Affiliation(s)
- Xin-Xin Wang
- School of Biological Science and Technology, University of Jinan Jinan 250022 China
| | - Run-Jie Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University Harbin 150040 China
| | - Hua-Long Ji
- School of Biological Science and Technology, University of Jinan Jinan 250022 China
| | - Xiao-Yu Liu
- Evaluation Center of the New Drug, Shandong Academy of Pharmaceutical Sciences Jinan 250101 China
| | - Nai-Yu Zhang
- School of Biological Science and Technology, University of Jinan Jinan 250022 China
| | - Kai-Ming Wang
- School of Biological Science and Technology, University of Jinan Jinan 250022 China
| | - Kai Chen
- Evaluation Center of the New Drug, Shandong Academy of Pharmaceutical Sciences Jinan 250101 China
| | - Ping-Ping Liu
- Department of Gynaecology and Obstetrics, 960th Hospital of PLA Jinan 250000 China
| | - Ning Meng
- School of Biological Science and Technology, University of Jinan Jinan 250022 China
| | - Cheng-Shi Jiang
- School of Biological Science and Technology, University of Jinan Jinan 250022 China
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Alafuzoff I, Libard S. Ageing-Related Neurodegeneration and Cognitive Decline. Int J Mol Sci 2024; 25:4065. [PMID: 38612875 PMCID: PMC11012171 DOI: 10.3390/ijms25074065] [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: 02/21/2024] [Revised: 03/27/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Neuropathological assessment was conducted on 1630 subjects, representing 5% of all the deceased that had been sent to the morgue of Uppsala University Hospital during a 15-year-long period. Among the 1630 subjects, 1610 were ≥41 years of age (range 41 to 102 years). Overall, hyperphosphorylated (HP) τ was observed in the brains of 98% of the 1610 subjects, and amyloid β-protein (Aβ) in the brains of 64%. The most common alteration observed was Alzheimer disease neuropathologic change (ADNC) (56%), followed by primary age-related tauopathy (PART) in 26% of the subjects. In 16% of the subjects, HPτ was limited to the locus coeruleus. In 14 subjects (<1%), no altered proteins were observed. In 3 subjects, only Aβ was observed, and in 17, HPτ was observed in a distribution other than that seen in ADNC/PART. The transactive DNA-binding protein 43 (TDP43) associated with limbic-predominant age-related TDP encephalopathy (LATE) was observed in 565 (35%) subjects and α-synuclein (αS) pathology, i.e., Lewy body disease (LBD) or multi system atrophy (MSA) was observed in the brains of 21% of the subjects. A total of 39% of subjects with ADNC, 59% of subjects with PART, and 81% of subjects with HPτ limited to the locus coeruleus lacked concomitant pathologies, i.e., LATE-NC or LBD-NC. Of the 293 (18% of the 1610 subjects) subjects with dementia, 81% exhibited a high or intermediate level of ADNC. In 84% of all individuals with dementia, various degrees of concomitant alterations were observed; i.e., MIXED-NC was a common cause of dementia. A high or intermediate level of PART was observed in 10 subjects with dementia (3%), i.e., tangle-predominant dementia. No subjects exhibited only vascular NC (VNC), but in 17 subjects, severe VNC might have contributed to cognitive decline. Age-related tau astrogliopathy (ARTAG) was observed in 37% of the 1610 subjects and in 53% of those with dementia.
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Affiliation(s)
- Irina Alafuzoff
- Department of Pathology, Uppsala University Hospital, 751 85 Uppsala, Sweden;
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 05 Uppsala, Sweden
| | - Sylwia Libard
- Department of Pathology, Uppsala University Hospital, 751 85 Uppsala, Sweden;
- Department of Immunology, Genetics and Pathology, Uppsala University, 751 05 Uppsala, Sweden
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Kamisah Y, Che Hassan HH. Role of Trimetazidine in Ameliorating Endothelial Dysfunction: A Review. Pharmaceuticals (Basel) 2024; 17:464. [PMID: 38675424 PMCID: PMC11054808 DOI: 10.3390/ph17040464] [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: 03/12/2024] [Revised: 04/01/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
Endothelial dysfunction is a hallmark of cardiovascular diseases, contributing to impaired vasodilation, altered hemodynamics, and atherosclerosis progression. Trimetazidine, traditionally used for angina pectoris, exhibits diverse therapeutic effects on endothelial dysfunction. This review aims to elucidate the mechanisms underlying trimetazidine's actions and its potential as a therapeutic agent for endothelial dysfunction and associated cardiovascular disorders. Trimetazidine enhances vasodilation and hemodynamic function by modulating endothelial nitric oxide synthase activity, nitric oxide production, and endothelin-1. It also ameliorates metabolic parameters, including reducing blood glucose, mitigating oxidative stress, and dampening inflammation. Additionally, trimetazidine exerts antiatherosclerotic effects by inhibiting plaque formation and promoting its stability. Moreover, it regulates apoptosis and angiogenesis, fostering endothelial cell survival and neovascularization. Understanding trimetazidine's multifaceted mechanisms underscores its potential as a therapeutic agent for endothelial dysfunction and associated cardiovascular disorders, warranting further investigation for clinical translation.
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Affiliation(s)
- Yusof Kamisah
- Department of Pharmacology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia;
| | - Hamat H. Che Hassan
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur 56000, Malaysia
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Lei H, Guo W, Pan Y, Lu X, Zhang Q. LOX-1 regulation of H-type vascular endothelial cell regeneration in hyperglycemia. Acta Diabetol 2024; 61:515-524. [PMID: 38244081 DOI: 10.1007/s00592-023-02224-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 12/10/2023] [Indexed: 01/22/2024]
Abstract
AIMS Diabetic osteoporosis (DOP) is the most common secondary form of osteoporosis. Diabetes mellitus affects bone metabolism; however, the underlying pathophysiological mechanisms remain unclear. Lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) expression is upregulated in conditions characterized by vascular injury, such as atherosclerosis, hypertension, and diabetes. Additionally, Notch, HIF-1α, and VEGF are involved in angiogenesis and bone formation. Therefore, we aimed to investigate the expression of Notch, HIF-1α, and VEGF in the LOX-1 silencing state. METHODS Rat bone H-type vascular endothelial cells (THVECs) were isolated and cultured in vitro. Cell identification was performed using immunofluorescent co-expression of CD31 and Emcn. Lentiviral silencing vector (LV-LOX-1) targeting LOX-1 was constructed using genetic recombination technology and transfected into the cells. The experimental groups included the following: NC group, HG group, LV-LOX-1 group, LV-CON group, HG + LV-LOX-1 group, HG + LV-CON group, HG + LV-LOX-1 + FLI-06 group, HG + LV-CON + FLI-06 group, HG + LV-LOX-1 + LW6 group, and HG + LV-CON + LW6 group. The levels of LOX-1, Notch, Hif-1α, and VEGF were detected using PCR and WB techniques to investigate whether the expression of LOX-1 under high glucose conditions has a regulatory effect on downstream molecules at the gene and protein levels, as well as the specific molecular mechanisms involved. RESULTS High glucose (HG) conditions led to a significant increase in LOX-1 expression, leading to inhibition of angiogenesis, whereas silencing LOX-1 can reverse this phenomenon. Further analysis reveals that changes in LOX-1 will promote changes in Notch/HIF-1α and VEGF. Moreover, Notch mediates the activation of HIF-1α and VEGF. CONCLUSIONS The activation of LOX-1 and the inhibition of Notch/HIF-1α/VEGF in THVECs are the main causes of DOP. These findings contribute to our understanding of the pathogenesis of DOP and offer a novel approach for preventing and treating osteoporosis.
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Affiliation(s)
- Haoyue Lei
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Wenhui Guo
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Youzhuo Pan
- The First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou, 730000, China
| | - Xun Lu
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, 750000, China
| | - Qi Zhang
- Department of Gerontology, Gansu Provincial Hospital, Lanzhou, 730000, China.
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Li G, Hou N, Liu H, Li J, Deng H, Lan H, Xiong S. Dapagliflozin alleviates high glucose-induced injury of endothelial cells via inducing autophagy. Clin Exp Pharmacol Physiol 2024; 51:e13846. [PMID: 38382536 DOI: 10.1111/1440-1681.13846] [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: 10/30/2023] [Revised: 01/03/2024] [Accepted: 01/29/2024] [Indexed: 02/23/2024]
Abstract
Hyperglycaemia is a key factor in the progression of diabetes complications. Dapagliflozin (DAPA), a new type of hypoglycaemic agent, has been shown to play an important role in anti-apoptotic, anti-inflammatory and antioxidant activities. Previous studies have demonstrated an endothelial protective effect of DAPA, but the underlying mechanism was still unclear. Autophagy is a homeostatic cellular mechanism that circulates unfolded proteins and damaged organelles through lysosomal dependent degradation. In this study, we aimed to investigate whether DAPA plays a protective role against high glucose (HG)-induced endothelial injury through regulating autophagy. The results showed that DAPA treatment resulted in increased cell viability. Additionally, DAPA treatment decreased interleukin (IL)-1β, IL-6, and tumour necrosis factor-α levels in endothelial cells subjected to HG conditions. We observed that HG inhibited autophagy, and DAPA increased the autophagy level by inhibiting the protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signalling pathway. Chloroquine reversed all of these beneficial effects as an autophagy inhibitor. In summary, the endothelial protective effect of DAPA in HG can be attributed in part to its role in activating of autophagy via the AKT/mTOR signalling pathway. Therefore, suggesting that the activation of autophagy by DAPA may be a novel target for the treatment of HG-induced endothelial cell injury.
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Affiliation(s)
- Gen Li
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Ningxin Hou
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Huagang Liu
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Jun Li
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Hongping Deng
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Hongwen Lan
- Division of Cardiothoracic and Vascular Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Sizheng Xiong
- Department of Vascular Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
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Guo Y, Lu J, Zhu L, Hao X, Huang K. Association between hyperglycemia during pregnancy and offspring's refractive error: A focused review. Eur J Ophthalmol 2024:11206721241238389. [PMID: 38523364 DOI: 10.1177/11206721241238389] [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: 03/26/2024]
Abstract
This review article explores the relationship between hyperglycemia during pregnancy and the visual development of offspring, specifically focusing on refractive error. The authors conducted a comprehensive search for relevant articles in various databases and assessed the methodological quality of the included studies. The findings consistently indicate that hyperglycemia during pregnancy can have a detrimental impact on the structural and functional aspects of visual development in offspring. The intrauterine hyperglycemic environment appears to negatively affect the retina and lens, leading to refractive errors. In conclusion, there is likely an association between hyperglycemia during pregnancy and the development of refractive errors in offspring.
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Affiliation(s)
- Yufan Guo
- School of Public Health, Anhui Medical University, Hefei, Anhui Province, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei, China
- Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Courset, Hefei, Anhui, China
| | - Jingru Lu
- School of Public Health, Anhui Medical University, Hefei, Anhui Province, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei, China
- Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Courset, Hefei, Anhui, China
| | - Linlin Zhu
- School of Public Health, Anhui Medical University, Hefei, Anhui Province, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei, China
- Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Courset, Hefei, Anhui, China
| | - Xuemei Hao
- School of Public Health, Anhui Medical University, Hefei, Anhui Province, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei, China
- Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Courset, Hefei, Anhui, China
| | - Kun Huang
- School of Public Health, Anhui Medical University, Hefei, Anhui Province, China
- Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, Anhui, China
- NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Hefei, China
- Anhui Provincial Key Laboratory of Environment and Population Health Across the Life Courset, Hefei, Anhui, China
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36
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Ghandour F, Kassem S, Simanovich E, Rahat MA. Glucose Promotes EMMPRIN/CD147 and the Secretion of Pro-Angiogenic Factors in a Co-Culture System of Endothelial Cells and Monocytes. Biomedicines 2024; 12:706. [PMID: 38672062 PMCID: PMC11047830 DOI: 10.3390/biomedicines12040706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 03/17/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024] Open
Abstract
Vascular complications in Type 2 diabetes mellitus (T2DM) patients increase morbidity and mortality. In T2DM, angiogenesis is impaired and can be enhanced or reduced in different tissues ("angiogenic paradox"). The present study aimed to delineate differences between macrovascular and microvascular endothelial cells that might explain this paradox. In a monoculture system of human macrovascular (EaHy926) or microvascular (HMEC-1) endothelial cell lines and a monocytic cell line (U937), high glucose concentrations (25 mmole/L) increased the secretion of the pro-angiogenic factors CD147/EMMPRIN, VEGF, and MMP-9 from both endothelial cells, but not from monocytes. Co-cultures of EaHy926/HMEC-1 with U937 enhanced EMMPRIN and MMP-9 secretion, even in low glucose concentrations (5.5 mmole/L), while in high glucose HMEC-1 co-cultures enhanced all three factors. EMMPRIN mediated these effects, as the addition of anti-EMMPRIN antibody decreased VEGF and MMP-9 secretion, and inhibited the angiogenic potential assessed through the wound assay. Thus, the minor differences between the macrovascular and microvascular endothelial cells cannot explain the angiogenic paradox. Metformin, a widely used drug for the treatment of T2DM, inhibited EMMPRIN, VEGF, and MMP-9 secretion in high glucose concentration, and the AMPK inhibitor dorsomorphin enhanced it. Thus, AMPK regulates EMMPRIN, a key factor in diabetic angiogenesis, suggesting that targeting EMMPRIN may help in the treatment of diabetic vascular complications.
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Affiliation(s)
- Fransis Ghandour
- Department of Internal Medicine A, Carmel Medical Center, Haifa 3436212, Israel
| | - Sameer Kassem
- Department of Internal Medicine A, Carmel Medical Center, Haifa 3436212, Israel
- The Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3109601, Israel
| | - Elina Simanovich
- Immunotherapy Laboratory, Carmel Medical Center, Haifa 3436212, Israel
| | - Michal A. Rahat
- The Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3109601, Israel
- Immunotherapy Laboratory, Carmel Medical Center, Haifa 3436212, Israel
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Kitselman A K, Bédard-Matteau J, Rousseau S, Tabrizchi R, Daneshtalab N. Sex differences in vascular endothelial function related to acute and long COVID-19. Vascul Pharmacol 2024; 154:107250. [PMID: 38043758 DOI: 10.1016/j.vph.2023.107250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/23/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus has been at the forefront of health sciences research since its emergence in China in 2019 that quickly led to a global pandemic. As a result of this research, and the large numbers of infected patients globally, there were rapid enhancements made in our understanding of Coronavirus disease 2019 (COVID-19) pathology, including its role in the development of uncontrolled immune responses and its link to the development of endotheliitis and endothelial dysfunction. There were also some noted differences in the rate and severity of infection between males and females with acute COVID. Some individuals infected with SARS-CoV-2 also experience long-COVID, an important hallmark symptom of this being Myalgic Encephalomyelitis-Chronic Fatigue Syndrome (ME-CFS), also experienced differently between males and females. The purpose of this review is to discuss the impact of sex on the vasculature during acute and long COVID-19, present any link between ME-CFS and endothelial dysfunction, and provide evidence for the relationship between ME-CFS and the immune system. We also will delineate biological sex differences observed in other post viral infections and, assess if sex differences exist in how the immune system responds to viral infection causing ME-CFS.
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Affiliation(s)
- Kayla Kitselman A
- Faculty of Medicine, Division of Biomedical Sciences at Memorial University of Newfoundland and Labrador, Canada
| | - Jérôme Bédard-Matteau
- Faculty of Medicine, Department of Pharmacology and Therapeutics, McGill University, Québec, Canada; Meakins-Christie Laboratories, RI-MUHC, Block EOffice EM3.2244Lab E03.21371001 Decarie Blvd., Montreal, QC H4A 3J1, Canada
| | - Simon Rousseau
- Faculty of Medicine, Department of Pharmacology and Therapeutics, McGill University, Québec, Canada; Faculty of Medicine, Department of Experimental Medicine, McGill University, Québec, Canada; Meakins-Christie Laboratories, RI-MUHC, Block EOffice EM3.2244Lab E03.21371001 Decarie Blvd., Montreal, QC H4A 3J1, Canada
| | - Reza Tabrizchi
- Faculty of Medicine, Division of Biomedical Sciences at Memorial University of Newfoundland and Labrador, Canada
| | - Noriko Daneshtalab
- School of Pharmacy at Memorial University of Newfoundland and Labrador, Canada.
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Zakynthinos GE, Tsolaki V, Oikonomou E, Pantelidis P, Gialamas I, Kalogeras K, Zakynthinos E, Vavuranakis M, Siasos G. Unveiling the Role of Endothelial Dysfunction: A Possible Key to Enhancing Catheter Ablation Success in Atrial Fibrillation. Int J Mol Sci 2024; 25:2317. [PMID: 38396990 PMCID: PMC10889579 DOI: 10.3390/ijms25042317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/10/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Atrial fibrillation, a prevalent type of arrhythmia, is increasingly contributing to the economic burden on healthcare systems. The development of innovative treatments, notably catheter ablation, has demonstrated both impressive and promising outcomes. However, these treatments have not yet fully replaced pharmaceutical approaches, primarily due to the relatively high incidence of atrial fibrillation recurrence post-procedure. Recent insights into endothelial dysfunction have shed light on its role in both the onset and progression of atrial fibrillation. This emerging understanding suggests that endothelial function might significantly influence the effectiveness of catheter ablation. Consequently, a deeper exploration into endothelial dynamics could potentially elevate the status of catheter ablation, positioning it as a primary treatment option for atrial fibrillation.
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Affiliation(s)
- George E. Zakynthinos
- 3rd Department of Cardiology, “Sotiria” Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (E.O.); (P.P.); (I.G.); (K.K.); (M.V.); (G.S.)
| | - Vasiliki Tsolaki
- Critical Care Department, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, Mezourlo, 41335 Larissa, Greece; (V.T.); (E.Z.)
| | - Evangelos Oikonomou
- 3rd Department of Cardiology, “Sotiria” Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (E.O.); (P.P.); (I.G.); (K.K.); (M.V.); (G.S.)
| | - Panteleimon Pantelidis
- 3rd Department of Cardiology, “Sotiria” Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (E.O.); (P.P.); (I.G.); (K.K.); (M.V.); (G.S.)
| | - Ioannis Gialamas
- 3rd Department of Cardiology, “Sotiria” Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (E.O.); (P.P.); (I.G.); (K.K.); (M.V.); (G.S.)
| | - Konstantinos Kalogeras
- 3rd Department of Cardiology, “Sotiria” Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (E.O.); (P.P.); (I.G.); (K.K.); (M.V.); (G.S.)
| | - Epaminondas Zakynthinos
- Critical Care Department, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, Mezourlo, 41335 Larissa, Greece; (V.T.); (E.Z.)
| | - Manolis Vavuranakis
- 3rd Department of Cardiology, “Sotiria” Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (E.O.); (P.P.); (I.G.); (K.K.); (M.V.); (G.S.)
| | - Gerasimos Siasos
- 3rd Department of Cardiology, “Sotiria” Chest Diseases Hospital, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (E.O.); (P.P.); (I.G.); (K.K.); (M.V.); (G.S.)
- Cardiovascular Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
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Tang S, An X, Sun W, Zhang Y, Yang C, Kang X, Sun Y, Jiang L, Zhao X, Gao Q, Ji H, Lian F. Parallelism and non-parallelism in diabetic nephropathy and diabetic retinopathy. Front Endocrinol (Lausanne) 2024; 15:1336123. [PMID: 38419958 PMCID: PMC10899692 DOI: 10.3389/fendo.2024.1336123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/23/2024] [Indexed: 03/02/2024] Open
Abstract
Diabetic nephropathy (DN) and diabetic retinopathy (DR), as microvascular complications of diabetes mellitus, are currently the leading causes of end-stage renal disease (ESRD) and blindness, respectively, in the adult working population, and they are major public health problems with social and economic burdens. The parallelism between the two in the process of occurrence and development manifests in the high overlap of disease-causing risk factors and pathogenesis, high rates of comorbidity, mutually predictive effects, and partial concordance in the clinical use of medications. However, since the two organs, the eye and the kidney, have their unique internal environment and physiological processes, each with specific influencing molecules, and the target organs have non-parallelism due to different pathological changes and responses to various influencing factors, this article provides an overview of the parallelism and non-parallelism between DN and DR to further recognize the commonalities and differences between the two diseases and provide references for early diagnosis, clinical guidance on the use of medication, and the development of new drugs.
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Affiliation(s)
- Shanshan Tang
- College of Traditional Chinese Medicine, Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Xuedong An
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Wenjie Sun
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuehong Zhang
- Fangshan Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Cunqing Yang
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiaomin Kang
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuting Sun
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Linlin Jiang
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Xuefei Zhao
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Qing Gao
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Hangyu Ji
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
| | - Fengmei Lian
- Guang’an Men Hospital of China Academy of Chinese Medical Sciences, Beijing, China
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Li X, Wang M, Kalina JO, Preckel B, Hollmann MW, Albrecht M, Zuurbier CJ, Weber NC. Empagliflozin prevents oxidative stress in human coronary artery endothelial cells via the NHE/PKC/NOX axis. Redox Biol 2024; 69:102979. [PMID: 38061206 PMCID: PMC10749278 DOI: 10.1016/j.redox.2023.102979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 12/28/2023] Open
Abstract
BACKGROUND Empagliflozin (EMPA) ameliorates reactive oxygen species (ROS) generation in human endothelial cells (ECs) exposed to 10 % stretch, but the underlying mechanisms are still unclear. Pathological stretch is supposed to stimulate protein kinase C (PKC) by increasing intracellular calcium (Ca2+), therefore activating nicotinamide adenine dinucleotide phosphate oxidase (NOX) and promoting ROS production in human ECs. We hypothesized that EMPA inhibits stretch-induced NOX activation and ROS generation through preventing PKC activation. METHODS Human coronary artery endothelial cells (HCAECs) were pre-incubated for 2 h before exposure to cyclic stretch (5 % or 10 %) with either vehicle, EMPA or the PKC inhibitor LY-333531 or PKC siRNA. PKC activity, NOX activity and ROS production were detected after 24 h. Furthermore, the Ca2+ chelator BAPTA-AM, NCX inhibitor ORM-10962 or NCX siRNA, sodium/potassium pump inhibitor ouabain and sodium hydrogen exchanger (NHE) inhibitor cariporide were applied to explore the involvement of the NHE/Na+/NCX/Ca2+ in the ROS inhibitory capacity of EMPA. RESULTS Compared to 5 % stretch, 10 % significantly increased PKC activity, which was reduced by EMPA and PKC inhibitor LY-333531. EMPA and LY-333531 showed a similar inhibitory capacity on NOX activity and ROS generation induced by 10 % stretch, which was not augmented by combined treatment with both drugs. PKC-β knockdown inhibits the NOX activation induced by Ca2+ and 10 % stretch. BAPTA, pharmacologic or genetic NCX inhibition and cariporide reduced Ca2+ in static HCAECs and prevented the activation of PKC and NOX in 10%-stretched cells. Ouabain increased ROS generation in cells exposed to 5 % stretch. CONCLUSION EMPA reduced NOX activity via attenuation of the NHE/Na+/NCX/Ca2+/PKC axis, leading to less ROS generation in HCAECs exposed to 10 % stretch.
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Affiliation(s)
- Xiaoling Li
- Amsterdam, University Medical Centers, Location AMC, Department of Anesthesiology, Laboratory of Experimental Intensive Care and Anesthesiology-L.E.I.C.A, Amsterdam Cardiovascular Science (ACS), Meibergdreef 11, 1105 AZ, Amsterdam, the Netherlands
| | - Mengnan Wang
- Amsterdam, University Medical Centers, Location AMC, Department of Anesthesiology, Laboratory of Experimental Intensive Care and Anesthesiology-L.E.I.C.A, Amsterdam Cardiovascular Science (ACS), Meibergdreef 11, 1105 AZ, Amsterdam, the Netherlands
| | - Jan-Ole Kalina
- Amsterdam, University Medical Centers, Location AMC, Department of Anesthesiology, Laboratory of Experimental Intensive Care and Anesthesiology-L.E.I.C.A, Amsterdam Cardiovascular Science (ACS), Meibergdreef 11, 1105 AZ, Amsterdam, the Netherlands; Department of Anesthesiology and Intensive Care Medicine, Universitätsklinikum Schleswig-Holstein, Campus Kiel, 24105, Kiel, Germany
| | - Benedikt Preckel
- Amsterdam, University Medical Centers, Location AMC, Department of Anesthesiology, Laboratory of Experimental Intensive Care and Anesthesiology-L.E.I.C.A, Amsterdam Cardiovascular Science (ACS), Meibergdreef 11, 1105 AZ, Amsterdam, the Netherlands
| | - Markus W Hollmann
- Amsterdam, University Medical Centers, Location AMC, Department of Anesthesiology, Laboratory of Experimental Intensive Care and Anesthesiology-L.E.I.C.A, Amsterdam Cardiovascular Science (ACS), Meibergdreef 11, 1105 AZ, Amsterdam, the Netherlands
| | - Martin Albrecht
- Department of Anesthesiology and Intensive Care Medicine, Universitätsklinikum Schleswig-Holstein, Campus Kiel, 24105, Kiel, Germany
| | - Coert J Zuurbier
- Amsterdam, University Medical Centers, Location AMC, Department of Anesthesiology, Laboratory of Experimental Intensive Care and Anesthesiology-L.E.I.C.A, Amsterdam Cardiovascular Science (ACS), Meibergdreef 11, 1105 AZ, Amsterdam, the Netherlands
| | - Nina C Weber
- Amsterdam, University Medical Centers, Location AMC, Department of Anesthesiology, Laboratory of Experimental Intensive Care and Anesthesiology-L.E.I.C.A, Amsterdam Cardiovascular Science (ACS), Meibergdreef 11, 1105 AZ, Amsterdam, the Netherlands.
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Chen C, Li X, Hu Y, Chen Y, Wang H, Li X, Li X. Electrical stimulation promoting the angiogenesis in diabetic rat perforator flap through attenuating oxidative stress-mediated inflammation and apoptosis. PeerJ 2024; 12:e16856. [PMID: 38313008 PMCID: PMC10838069 DOI: 10.7717/peerj.16856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/08/2024] [Indexed: 02/06/2024] Open
Abstract
Background Skin flap transplantation is one of the effective methods to treat the diabetes-related foot ulceration, but the intrinsic damage to vessels in diabetes mellitus (DM) leads to the necrosis of skin flaps. Therefore, the discovery of a non-invasive and effective approach for promoting the survival of flaps is of the utmost importance. Electrical stimulation (ES) promotes angiogenesis and increases the proliferation, migration, and elongation of endothelial cells, thus being a potential effective method to improve flap survival. Objective The purpose of this study was to elucidate the mechanism used by ES to effectively restore the impaired function of endothelial cells caused by diabetes. Methods A total of 79 adult male Sprague-Dawley rats were used in this study. Gene and protein expression was assessed by PCR and western blotting, respectively. Immunohistochemistry and hematoxylin-eosin staining were performed to evaluate the morphology and density of the microvessels in the flap. Results The optimal duration for preconditioning the flap with ES was 7 days. The flap survival area percentage and microvessels density in the DMES group were markedly increased compared to the DM group. VEGF, MMP2, and MMP9 protein expression was significantly upregulated. ROS intensity was significantly decreased and GSH concentration was increased. The expression of IL-1β, MCP‑1, cleaved caspase-3, and Bax were downregulated in the DMES group, while TGF-β expression was upregulated. Conclusions ES improves the angiogenesis in diabetic ischemic skin flaps by attenuating oxidative stress-mediated inflammation and apoptosis, eventually increasing their viability.
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Affiliation(s)
- Cong Chen
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Xiaolu Li
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Yong Hu
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Yuan Chen
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Hongrui Wang
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Xian Li
- Second Hospital of Shandong University, Jinan, Shandong, China
| | - Xiucun Li
- Second Hospital of Shandong University, Jinan, Shandong, China
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Kreindl C, Soto-Alarcón SA, Hidalgo M, Riveros AL, Añazco C, Pulgar R, Porras O. Selenium Compounds Affect Differently the Cytoplasmic Thiol/Disulfide State in Dermic Fibroblasts and Improve Cell Migration by Interacting with the Extracellular Matrix. Antioxidants (Basel) 2024; 13:159. [PMID: 38397757 PMCID: PMC10886037 DOI: 10.3390/antiox13020159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/15/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
Deficient wound healing is frequently observed in patients diagnosed with diabetes, a clinical complication that compromises mobility and leads to limb amputation, decreasing patient autonomy and family lifestyle. Fibroblasts are crucial for secreting the extracellular matrix (ECM) to pave the wound site for endothelial and keratinocyte regeneration. The biosynthetic pathways involved in collagen production and crosslinking are intimately related to fibroblast redox homeostasis. In this study, two sets of human dermic fibroblasts were cultured in normal (5 mM) and high (25 mM)-glucose conditions in the presence of 1 µM selenium, as sodium selenite (inorganic) and the two selenium amino acids (organic), Se-cysteine and Se-methionine, for ten days. We investigated the ultrastructural changes in the secreted ECM induced by these conditions using scanning electron microscopy (SEM). In addition, we evaluated the redox impact of these three compounds by measuring the basal state and real-time responses of the thiol-based HyPer biosensor expressed in the cytoplasm of these fibroblasts. Our results indicate that selenium compound supplementation pushed the redox equilibrium towards a more oxidative tone in both sets of fibroblasts, and this effect was independent of the type of selenium. The kinetic analysis of biosensor responses allowed us to identify Se-cysteine as the only compound that simultaneously improved the sensitivity to oxidative stimuli and augmented the disulfide bond reduction rate in high-glucose-cultured fibroblasts. The redox response profiles showed no clear association with the ultrastructural changes observed in matrix fibers secreted by selenium-treated fibroblasts. However, we found that selenium supplementation improved the ECM secreted by high-glucose-cultured fibroblasts according to endothelial migration assessed with a wound healing assay. Direct application of sodium selenite and Se-cysteine on purified collagen fibers subjected to glycation also improved cellular migration, suggesting that these selenium compounds avoid the undesired effect of glycation.
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Affiliation(s)
- Christine Kreindl
- Laboratory for Research in Functional Nutrition, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7830490, Chile; (C.K.); (M.H.)
| | - Sandra A. Soto-Alarcón
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago 7500912, Chile;
| | - Miltha Hidalgo
- Laboratory for Research in Functional Nutrition, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7830490, Chile; (C.K.); (M.H.)
| | - Ana L. Riveros
- Laboratorio de Nanobiotecnología y Nanotoxicología, Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingston 1007, Santiago 8380492, Chile;
| | - Carolina Añazco
- Laboratorio de Bioquímica Nutricional, Escuela de Nutrición y Dietética, Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, General Lagos #1190, Valdivia 5110773, Chile;
| | - Rodrigo Pulgar
- Laboratory of Genomics and Genetics of Biological Interactions, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago 7830490, Chile;
| | - Omar Porras
- Laboratory for Research in Functional Nutrition, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7830490, Chile; (C.K.); (M.H.)
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Wang B, He X, Zhang J, Zhang Y. Cell surface GRP78: A potential therapeutic target for high glucose-induced endothelial injury. Biochem Biophys Res Commun 2024; 692:149347. [PMID: 38056158 DOI: 10.1016/j.bbrc.2023.149347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/08/2023]
Abstract
Endothelial cell inflammation and oxidative stress are critical to developing diabetic vascular complications. GRP78 translocation to the cell surface has been observed in different types of endothelial cells, but the potential role of cell surface GRP78 in modulating endothelial inflammation and oxidative stress remains uncertain. In this study, we investigated whether inhibiting cell surface GRP78 function using a novel anti-GRP78 monoclonal antibody (MAb159) could suppress high glucose (HG)-induced endothelial inflammation and oxidative stress. Our findings demonstrated that the expression of cell surface GRP78 was increased in HG-treated HUVECs. Inhibition of cell surface GRP78 using MAb159 attenuated HG-induced endothelial injury, inflammation and oxidative stress, while activation of GRP78 by recombinant GRP78 further amplified HG-induced endothelial damage, inflammation and oxidative stress. Additionally, we discovered that cell surface GRP78 promoted HG-induced inflammation and oxidative stress by activating the TLR4/NF-κB signalling pathway. Moreover, HG-induced GRP78 translocation to the cell surface is dependent on ER stress. Our data demonstrate that targeting cell surface GRP78 could be a promising therapeutic strategy for mitigating endothelial injury, inflammation and oxidative stress.
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Affiliation(s)
- Bo Wang
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Xin He
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Jingliang Zhang
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China
| | - Yingjie Zhang
- First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, China.
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Gao H, Wang Z, Zhu D, Zhao L, Xiao W. Dioscin: Therapeutic potential for diabetes and complications. Biomed Pharmacother 2024; 170:116051. [PMID: 38154275 DOI: 10.1016/j.biopha.2023.116051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 12/30/2023] Open
Abstract
Diabetes mellitus is a widespread metabolic disorder with increasing incidence worldwide, posing a considerable threat to human health because of its complications. Therefore, cost-effective antidiabetic drugs with minimal side effects are urgently needed. Dioscin, a naturally occurring compound, helps to reduce the complications of diabetes mellitus by regulating glucose and lipid metabolism, protecting islet β cells, improving insulin resistance, and inhibiting oxidative stress and inflammatory response. Plant-derived dioscin reduces the risk of toxicity and side effects associated with chemically synthesized drugs. It is a promising option for treating diabetes mellitus because of its preventive and therapeutic effects, which may be attributed to a variety of underlying mechanisms. However, data compiled by current studies are preliminary. Information about the molecular mechanism of dioscin remains limited, and no high-quality human experiments and clinical trials for testing its safety and efficacy have been conducted. As a resource for research in this area, this review is expected to provide a systematic framework for the application of dioscin in the treatment of diabetes mellitus and its complications.
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Affiliation(s)
- Haoyang Gao
- Shanghai Key Lab of Human Performance (Shanghai University of sport), Shanghai University of Sport, Shanghai 200438, China; The Key Lab of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, China
| | - Ze Wang
- Shanghai Key Lab of Human Performance (Shanghai University of sport), Shanghai University of Sport, Shanghai 200438, China; The Key Lab of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, China
| | - Danlin Zhu
- Shanghai Key Lab of Human Performance (Shanghai University of sport), Shanghai University of Sport, Shanghai 200438, China; The Key Lab of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, China
| | - Linlin Zhao
- Shanghai Key Lab of Human Performance (Shanghai University of sport), Shanghai University of Sport, Shanghai 200438, China; The Key Lab of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, China; School of Physical Education, Shanghai Normal University, Shanghai 200234, China.
| | - Weihua Xiao
- Shanghai Key Lab of Human Performance (Shanghai University of sport), Shanghai University of Sport, Shanghai 200438, China; The Key Lab of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, China.
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Liu J, Pan S, Wang X, Liu Z, Zhang Y. Role of advanced glycation end products in diabetic vascular injury: molecular mechanisms and therapeutic perspectives. Eur J Med Res 2023; 28:553. [PMID: 38042909 PMCID: PMC10693038 DOI: 10.1186/s40001-023-01431-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/04/2023] [Indexed: 12/04/2023] Open
Abstract
BACKGROUND In diabetic metabolic disorders, advanced glycation end products (AGEs) contribute significantly to the development of cardiovascular diseases (CVD). AIMS This comprehensive review aims to elucidate the molecular mechanisms underlying AGE-mediated vascular injury. CONCLUSIONS We discuss the formation and accumulation of AGEs, their interactions with cellular receptors, and the subsequent activation of signaling pathways leading to oxidative stress, inflammation, endothelial dysfunction, smooth muscle cell proliferation, extracellular matrix remodeling, and impaired angiogenesis. Moreover, we explore potential therapeutic strategies targeting AGEs and related pathways for CVD prevention and treatment in diabetic metabolic disorders. Finally, we address current challenges and future directions in the field, emphasizing the importance of understanding the molecular links between AGEs and vascular injury to improve patient outcomes.
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Affiliation(s)
- Jing Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, 256 Youyi Xi Rd, Xi'an, 710068, China
| | - Shuo Pan
- Department of Cardiology, Shaanxi Provincial People's Hospital, 256 Youyi Xi Rd, Xi'an, 710068, China
| | - Xiqiang Wang
- Department of Cardiology, Shaanxi Provincial People's Hospital, 256 Youyi Xi Rd, Xi'an, 710068, China
| | - Zhongwei Liu
- Department of Cardiology, Shaanxi Provincial People's Hospital, 256 Youyi Xi Rd, Xi'an, 710068, China.
- Affiliated Shaanxi Provincial People's Hospital, Medical Research Institute, Northwestern Polytechnical University, Xi'an, China.
| | - Yong Zhang
- Department of Cardiology, Shaanxi Provincial People's Hospital, 256 Youyi Xi Rd, Xi'an, 710068, China.
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Bao T, Zhang X, Xie W, Wang Y, Li X, Tang C, Yang Y, Sun J, Gao J, Yu T, Zhao L, Tong X. Natural compounds efficacy in complicated diabetes: A new twist impacting ferroptosis. Biomed Pharmacother 2023; 168:115544. [PMID: 37820566 DOI: 10.1016/j.biopha.2023.115544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 09/13/2023] [Accepted: 09/18/2023] [Indexed: 10/13/2023] Open
Abstract
Ferroptosis, as a way of cell death, participates in the body's normal physiological and pathological regulation. Recent studies have shown that ferroptosis may damage glucose-stimulated islets β Insulin secretion and programmed cell death of T2DM target organs are involved in the pathogenesis of T2DM and its complications. Targeting suppression of ferroptosis with specific inhibitors may provide new therapeutic opportunities for previously untreated T2DM and its target organs. Current studies suggest that natural bioactive compounds, which are abundantly available in drugs, foods, and medicinal plants for the treatment of T2DM and its target organs, have recently received significant attention for their various biological activities and minimal toxicity, and that many natural compounds appear to have a significant role in the regulation of ferroptosis in T2DM and its target organs. Therefore, this review summarized the potential treatment strategies of natural compounds as ferroptosis inhibitors to treat T2DM and its complications, providing potential lead compounds and natural phytochemical molecular nuclei for future drug research and development to intervene in ferroptosis in T2DM.
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Affiliation(s)
- Tingting Bao
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No.5 BeiXianGe Street, Xicheng District, Beijing 100053, China; Graduate school, Beijing University of Traditional Chinese Medicine, Beijing 100029, China
| | - Xiangyuan Zhang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No.5 BeiXianGe Street, Xicheng District, Beijing 100053, China; Graduate school, Beijing University of Traditional Chinese Medicine, Beijing 100029, China
| | - Weinan Xie
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No.5 BeiXianGe Street, Xicheng District, Beijing 100053, China; Graduate school, Beijing University of Traditional Chinese Medicine, Beijing 100029, China
| | - Ying Wang
- Changchun University of Chinese Medicine, No. 1035, Boshuo Road, Jingyue National High-tech Industrial Development Zone, Changchun 130117, China
| | - Xiuyang Li
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No.5 BeiXianGe Street, Xicheng District, Beijing 100053, China
| | - Cheng Tang
- Changchun University of Chinese Medicine, No. 1035, Boshuo Road, Jingyue National High-tech Industrial Development Zone, Changchun 130117, China
| | - Yingying Yang
- National Center for Integrated Traditional and Western Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - Jun Sun
- Affiliated Hospital of Changchun University of Traditional Chinese Medicine, No. 1478, Gongnong Road, Chaoyang District, Changchun 130021, China
| | - Jiaqi Gao
- School of Qi-Huang Chinese Medicine, Beijing University of Chinese Medicine, No. 11, North 3rd Ring East Roa, Chaoyang Distric, Beijing 10010, China
| | - Tongyue Yu
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No.5 BeiXianGe Street, Xicheng District, Beijing 100053, China
| | - Linhua Zhao
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No.5 BeiXianGe Street, Xicheng District, Beijing 100053, China.
| | - Xiaolin Tong
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, No.5 BeiXianGe Street, Xicheng District, Beijing 100053, China.
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Bolac R, Bas S, Ozkan EMA, Balci S, Alpogan O. Evaluation of the effect of sodium-glucose cotransporter-2 inhibitor treatment on choroidal vascular parameters in patients with type 2 diabetes mellitus. Photodiagnosis Photodyn Ther 2023; 44:103804. [PMID: 37714281 DOI: 10.1016/j.pdpdt.2023.103804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/29/2023] [Accepted: 09/12/2023] [Indexed: 09/17/2023]
Abstract
BACKGROUND To evaluate the effect of sodium-glucose cotransporter-2 inhibitor treatment on choroidal vascular parameters in patients with type 2 diabetes mellitus (T2DM). METHODS Twenty eyes of 20 patients with T2DM without diabetic retinopathy and 20 eyes of 20 age- and sex-matched patients as the control group were included in the study. The patients were evaluated using enhanced depth imaging optic coherence tomography before treatment and at the third month of treatment. The choroidal images were binarized into luminal areas (LAs) and stromal areas (SAs). The choroidal vascularity index (CVI) was defined as the ratio of the LA to the total circumscribed choroid area (TCA). RESULTS The mean age of the patients was 56.65±8.41 years. The patients' mean disease duration was 6.65±5.72 years, the mean HbA1c level was 8.89±1.62%, and the mean body mass index was 33.13±4.84 kg/m2. The subfoveal TCA, subfoveal LA, subfoveal SA, total TCA, total LA, and total SA values of the patient group were found to be significantly lower than those of the control group (p = 0.006, p = 0.003, p = 0.028, p = 0.001, p = 0.001, and p = 0.006, respectively). There was a significant increase in the subfoveal TCA, subfoveal LA, subfoveal SA, subfoveal CVI, total TCA, total LA, and total SA values after empagliflozin treatment compared to before empagliflozin treatment (p = 0.005, p = 0.003, p = 0.021, p = 0.032, p < 0.001, p < 0.001, and p = 0.001 respectively). CONCLUSIONS Empagliflozin provides an improvement in diabetic choroidal changes through its effect on choroidal vascularity parameters.
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Affiliation(s)
- Ruveyde Bolac
- University of Health Sciences, Haydarpasa Numune Training and Research Hospital, Department of Ophthalmology, Istanbul, Turkey.
| | - Suleyman Bas
- Sancaktepe Sehit Prof. Dr. Ilhan Varank Training and Research Hospital, Department of Internal Medicine, Istanbul, Turkey.
| | - Esma Merve Arda Ozkan
- University of Health Sciences, Haydarpasa Numune Training and Research Hospital, Department of Internal Medicine, Istanbul, Turkey
| | - Sevcan Balci
- University of Health Sciences, Haydarpasa Numune Training and Research Hospital, Department of Ophthalmology, Istanbul, Turkey
| | - Oksan Alpogan
- University of Health Sciences, Haydarpasa Numune Training and Research Hospital, Department of Ophthalmology, Istanbul, Turkey
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Mauricio D, Gratacòs M, Franch-Nadal J. Diabetic microvascular disease in non-classical beds: the hidden impact beyond the retina, the kidney, and the peripheral nerves. Cardiovasc Diabetol 2023; 22:314. [PMID: 37968679 PMCID: PMC10652502 DOI: 10.1186/s12933-023-02056-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 11/07/2023] [Indexed: 11/17/2023] Open
Abstract
Diabetes microangiopathy, a hallmark complication of diabetes, is characterised by structural and functional abnormalities within the intricate network of microvessels beyond well-known and documented target organs, i.e., the retina, kidney, and peripheral nerves. Indeed, an intact microvascular bed is crucial for preserving each organ's specific functions and achieving physiological balance to meet their respective metabolic demands. Therefore, diabetes-related microvascular dysfunction leads to widespread multiorgan consequences in still-overlooked non-traditional target organs such as the brain, the lung, the bone tissue, the skin, the arterial wall, the heart, or the musculoskeletal system. All these organs are vulnerable to the physiopathological mechanisms that cause microvascular damage in diabetes (i.e., hyperglycaemia-induced oxidative stress, inflammation, and endothelial dysfunction) and collectively contribute to abnormalities in the microvessels' structure and function, compromising blood flow and tissue perfusion. However, the microcirculatory networks differ between organs due to variations in haemodynamic, vascular architecture, and affected cells, resulting in a spectrum of clinical presentations. The aim of this review is to focus on the multifaceted nature of microvascular impairment in diabetes through available evidence of specific consequences in often overlooked organs. A better understanding of diabetes microangiopathy in non-target organs provides a broader perspective on the systemic nature of the disease, underscoring the importance of recognising the comprehensive range of complications beyond the classic target sites.
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Affiliation(s)
- Dídac Mauricio
- DAP-Cat group, Unitat de Suport a la Recerca Barcelona, Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain.
- CIBER of Diabetes and Associated Metabolic Diseases (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Barcelona, Spain.
- Department of Endocrinology and Nutrition, Hospital de la Santa Creu i Sant Pau, IR Sant Pau, Barcelona, Spain.
- Department of Medicine, University of Vic - Central University of Catalonia, Vic, Spain.
| | - Mònica Gratacòs
- DAP-Cat group, Unitat de Suport a la Recerca Barcelona, Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
| | - Josep Franch-Nadal
- DAP-Cat group, Unitat de Suport a la Recerca Barcelona, Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
- CIBER of Diabetes and Associated Metabolic Diseases (CIBERDEM), Instituto de Salud Carlos III (ISCIII), Barcelona, Spain
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Wang YX, Liang JX, Lin R, Yan YJ, Li H, Chen MF. Stratified support pattern-based internet-assisted self-management therapy for diabetes mellitus -mild cognitive impairment: a randomized controlled trial protocol. BMC Endocr Disord 2023; 23:240. [PMID: 37919711 PMCID: PMC10621157 DOI: 10.1186/s12902-023-01485-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 10/11/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND Mild cognitive impairment (MCI) associated with diabetes mellitus (DM) is common among older adults, and self-management is critical to controlling disease progression. However, both MCI and DM are heterogeneous diseases, and existing integrated self-management interventions do not consider patient differences. Grouping patients by disease characteristics could help to individualize disease management and improve the use of available resources. The current study sought to explore the feasibility and effectiveness of a stratified support model for DM-MCI patients. METHODS Eighty-four DM-MCI patients will be randomly divided into an intervention group and a control group in a 1:1 ratio. The intervention group will receive a self-management intervention using the stratified support pattern-based internet-assisted therapy (SISMT), while the control group will receive the health manual intervention (HMI). The study recruiter will be blinded to the group allocation and unable to foresee which group the next participant will be assigned to. At the same time, the allocation will be also hidden from the research evaluators and participants. After 12 weeks and 24 weeks, cognitive function, blood glucose, self-management ability, psychological status, health literacy, and self-management behavior of patients in both groups will be measured and compared. DISCUSSION This study developed a stratified support pattern-based internet-assisted to provide self-management intervention for patients with DM-MCI. The impact of different models and forms of self-management intervention on cognitive function, blood glucose management, and psychological status health literacy and self-management behavior of patients will be assessed. The results of this study will inform related intervention research on the stratified support pattern-based internet-assisted self-management therapy, and help to slow the decline of cognitive function in patients with DM-MCI. TRIAL REGISTRATION ChiCTR2200061991. Registered 16 July 2022.
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Affiliation(s)
- Yun-Xian Wang
- The School of Nursing, Fujian Medical University, No. 88 Jiaotong Road, Fuzhou City, 350004, Fujian Province, China
- Nursing Department, The First People's Hospital of Yunnan Province, No 157 Jinbi Road, Kunming City, 650032, Yunnan Province, China
| | - Ji-Xing Liang
- Endocrinology Department, Fujian Provincial Hospital & Shengli Clinical Medical College, No. 134 East Street, Fuzhou City, 350122, Fujian Province, China
| | - Rong Lin
- The School of Nursing, Fujian Medical University, No. 1 Xuefu North Road, Fuzhou City, 350122, Fujian Province, China
| | - Yuan-Jiao Yan
- Research Center for Nursing Theory and Practice, Fujian Provincial Hospital & Shengli Clinical Medical College, No. 134 East Street, Fuzhou City, 350122, Fujian Province, China
| | - Hong Li
- The School of Nursing, Fujian Medical University, No. 1 Xuefu North Road, Fuzhou City, 350122, Fujian Province, China.
| | - Ming-Feng Chen
- Neurology Department, Fujian Provincial Hospital & Shengli Clinical Medical College, No. 134 East Street, Fuzhou City, 350122, Fujian Province, China.
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Amin KN, Rajaguru P, Suzuki T, Sarkar K, Ganesan K, Ramkumar KM. Quantitative proteomic analyses uncover regulatory roles of Nrf2 in human endothelial cells. Cell Stress Chaperones 2023; 28:731-747. [PMID: 37488350 PMCID: PMC10746666 DOI: 10.1007/s12192-023-01366-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/13/2023] [Accepted: 07/10/2023] [Indexed: 07/26/2023] Open
Abstract
Nuclear factor erythroid 2-related factor 2 (Nrf2), a transcriptional regulator, is the predominant factor in modulating oxidative stress and other cellular signaling responses. Studies from our lab and others highlighted that activation of the Nrf2 pathway by small molecules improves endothelial function by suppressing oxidative and endoplasmic reticulum (ER) stress. However, the exact mechanisms by which Nrf2 elicits these effects are unknown. In the present study, we developed CRISPR/Cas9-mediated Nrf2 knocked-out human endothelial cells, and proteomic signature was studied using LC-MS/MS. We identified 723 unique proteins, of which 361 proteins were found to be differentially regulated and further screened in the Nrf2ome online database, where we identified a highly interconnected signaling network in which 70 proteins directly interact with Nrf2. These proteins were found to regulate some key cellular and metabolic processes in the regulation actin cytoskeleton, ER stress, angiogenesis, inflammation, Hippo signaling pathway, and epidermal growth factor/fibroblast growth factor (EGF/FGF) signaling pathway. Our findings suggest the role of Nrf2 in maintaining endothelium integrity and its relationship with the crucial cellular processes which help develop novel therapeutics against endothelial dysfunction and its associated complications.
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Affiliation(s)
- Karan Naresh Amin
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - Palanichamy Rajaguru
- Department of Biotechnology, Central University of Tamil Nadu, Tiruvarur, 610005, India
| | - Takayoshi Suzuki
- Division Cellular and Gene Therapy Products, National Institute of Health Sciences, Setagaya-Ku, Tokyo, 158-8501, Japan
| | - Koustav Sarkar
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India
| | - Kumar Ganesan
- School of Chinese Medicine, LKS Faculty of Medicine, University of Hong Kong, 10 Sassoon Road, Hong Kong, 999077, China
| | - Kunka Mohanram Ramkumar
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, 603203, Tamil Nadu, India.
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