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Bahardoust M, Hadaegh F, Mehrabi Y, Delpisheh A, Khalili D. Medication time of metformin and sulfonylureas and incidence of cardiovascular diseases and mortality in type 2 diabetes: a pooled cohort analysis. Sci Rep 2025; 15:8401. [PMID: 40069233 PMCID: PMC11897161 DOI: 10.1038/s41598-025-89721-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Accepted: 02/07/2025] [Indexed: 03/15/2025] Open
Abstract
The effect of duration of medication with metformin and sulfonylurea (SUs) on cardiovascular diseases (CVD) and mortality events by duration of type 2 diabetes (DM) is unclear. This study aimed to investigate the effect of duration of treatment with metformin and SUs on CVD and mortality events based on DM duration in newly diagnosed DM patients. Data from three prospective cohorts of Tehran Lipid and Glucose Study (TLGS), Multi-Ethnic Study of Atherosclerosis (MESA), and Atherosclerosis Risk in Communities (ARIC) including 4108 newly diagnosed type 2 diabetes individuals (mean age, 59.4 ± 0.66 years) were pooled. Exposure was defined as the duration of metformin alone, SUs alone, and a combination of both since drug initiation. The Cox proportional hazards (CPH) model adjusted for confounders, including statin, aspirin, and anti-hypertensive, was used to estimate the hazard ratio (HR) (95% CI) for the outcomes. Cumulative exposure for metformin, SUs, aspirin, statin, and anti-hypertensive medication was calculated using the same method. The median follow-up was 20.33 ± 0.45 years. Cardiovascular events, all-cause mortality (ACM), and CVD mortality occurred in 767, 913, and 439 newly diagnosed DM patients, respectively. Metformin alone reduced the hazard of cardiovascular events, ACM, and CV-mortality by 7%, 4%, and 6%, respectively, for each year of use, respectively (p < 0.05); the corresponding values for SUs alone were 4%, 3%, and 4%, respectively (p < 0.05). The effect of metformin on reducing cardiovascular events, ACM, and CVD mortality continued until approximately 8, 10, and 5 years after the start of treatment, respectively, and then reached Plato. The effect of SUs on cardiovascular events, ACM, and CVD mortality continued to decline or reach Plato until approximately 6, 5, and 8 years after initiation of therapy and then was ineffective or reversed. The effect of the combination therapy on the reduction of cardiovascular events continued until 11 years after therapy initiation. Among newly diagnosed DM patients, metformin, with and without SUs, was associated with a reduced risk of cardiovascular events, ACM, and CVD mortality for up to about one decade. The combined effect of metformin + sulfonylurea was superior to the single effect of metformin or sulfonylurea alone. The combination therapy of Metformin and SUs can still be used with good safety, especially in the first years of diabetes diagnosis.
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Affiliation(s)
- Mansour Bahardoust
- Department of Epidemiology, School of Public Health & Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzad Hadaegh
- Prevention of Metabolic Disorders Research Center, Research Institute for Metabolic and Obesity Disorders, Research Institute for Endocrine Sciences, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yadollah Mehrabi
- Department of Epidemiology, School of Public Health & Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Delpisheh
- Department of Epidemiology, School of Public Health & Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Safety Promotion and Injury Prevention Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Davood Khalili
- Prevention of Metabolic Disorders Research Center, Research Institute for Metabolic and Obesity Disorders, Research Institute for Endocrine Sciences, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Lown Scholar in Cardiovascular Health, Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston,MA, US.
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Koniari I, Bozika M, Nastouli KM, Tzegka D, Apostolos A, Velissaris D, Leventopoulos G, Perperis A, Kounis NG, Tsigkas G, Davlouros P. The Role of Early Risk Factor Modification and Ablation in Atrial Fibrillation Substrate Remodeling Prevention. Biomedicines 2025; 13:405. [PMID: 40002818 PMCID: PMC11852994 DOI: 10.3390/biomedicines13020405] [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: 01/05/2025] [Revised: 02/02/2025] [Accepted: 02/05/2025] [Indexed: 02/27/2025] Open
Abstract
Atrial fibrillation (AF) is the most common sustained arrhythmia, contributing to significant morbidity and healthcare burden worldwide. This review evaluates the role of early risk factor modification and timely catheter ablation in preventing AF progression and improving patient outcomes. A comprehensive literature search was conducted using PubMed, MEDLINE, and Google Scholar, focusing on studies published after the ESC 2020 guidelines for the diagnosis and management of AF up to the release of the updated ESC 2024 guidelines for the management of AF. Keywords included "atrial fibrillation", "catheter ablation", "risk factor management", and "psychological stress". Relevant clinical trials, randomized controlled trials, systematic reviews, and meta-analyses were included, with particular emphasis on novel studies contributing to the ESC 2024 updated recommendations. Traditional risk factors such as obesity, hypertension, diabetes, sleep apnea, alcohol consumption, and physical exertion are well established in AF progression. Early evidence also suggests a role for psychological stress and mood disorders, including depression and post-traumatic stress disorder (PTSD), in increasing AF susceptibility. Psychological stress and mood disorders are linked to AF primarily through behavioral changes such as poor medication adherence, unhealthy lifestyle choices, and increased substance use. Recent guidelines recommend early catheter ablation in selected patients to reduce AF burden, prevent atrial remodeling, and improve quality of life, particularly in those resistant to antiarrhythmic drugs or individuals with AF-induced cardiomyopathy. Furthermore, we highlight the importance of a patient-centered, multidisciplinary approach, integrating electrophysiologists, cardiologists, and primary care providers with structured risk factor interventions and shared decision-making. Despite these advances, gaps remain in defining optimal timing, patient selection, and long-term benefits of catheter ablation in persistent AF, necessitating the need for further research. By integrating early intervention, personalized treatment strategies, and collaborative care models, we may usher in a paradigm shift in AF management, improving long-term cardiovascular outcomes and patient quality of life.
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Affiliation(s)
- Ioanna Koniari
- Department of Medicine, Division of Cardiology, University Hospital of Patras, 265 04 Patras, Greece; (M.B.); (K.-M.N.); (D.T.); (G.L.); (A.P.); (N.G.K.); (G.T.); (P.D.)
- Liverpool Centre for Cardiovascular Science, Liverpool L14 3PE, UK
| | - Maria Bozika
- Department of Medicine, Division of Cardiology, University Hospital of Patras, 265 04 Patras, Greece; (M.B.); (K.-M.N.); (D.T.); (G.L.); (A.P.); (N.G.K.); (G.T.); (P.D.)
| | - Kassiani-Maria Nastouli
- Department of Medicine, Division of Cardiology, University Hospital of Patras, 265 04 Patras, Greece; (M.B.); (K.-M.N.); (D.T.); (G.L.); (A.P.); (N.G.K.); (G.T.); (P.D.)
| | - Dimitra Tzegka
- Department of Medicine, Division of Cardiology, University Hospital of Patras, 265 04 Patras, Greece; (M.B.); (K.-M.N.); (D.T.); (G.L.); (A.P.); (N.G.K.); (G.T.); (P.D.)
| | - Anastasios Apostolos
- First Department of Cardiology, Hippocration General Hospital, National and Kapodistrian University of Athens, 157 72 Athens, Greece;
| | - Dimitrios Velissaris
- Department of Internal Medicine, University Hospital of Patras, 265 04 Patras, Greece;
| | - Georgios Leventopoulos
- Department of Medicine, Division of Cardiology, University Hospital of Patras, 265 04 Patras, Greece; (M.B.); (K.-M.N.); (D.T.); (G.L.); (A.P.); (N.G.K.); (G.T.); (P.D.)
| | - Angelos Perperis
- Department of Medicine, Division of Cardiology, University Hospital of Patras, 265 04 Patras, Greece; (M.B.); (K.-M.N.); (D.T.); (G.L.); (A.P.); (N.G.K.); (G.T.); (P.D.)
| | - Nicholas G. Kounis
- Department of Medicine, Division of Cardiology, University Hospital of Patras, 265 04 Patras, Greece; (M.B.); (K.-M.N.); (D.T.); (G.L.); (A.P.); (N.G.K.); (G.T.); (P.D.)
| | - Grigorios Tsigkas
- Department of Medicine, Division of Cardiology, University Hospital of Patras, 265 04 Patras, Greece; (M.B.); (K.-M.N.); (D.T.); (G.L.); (A.P.); (N.G.K.); (G.T.); (P.D.)
| | - Periklis Davlouros
- Department of Medicine, Division of Cardiology, University Hospital of Patras, 265 04 Patras, Greece; (M.B.); (K.-M.N.); (D.T.); (G.L.); (A.P.); (N.G.K.); (G.T.); (P.D.)
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Nantsupawat T, Apaijai N, Phrommintikul A, Prasertwitayakij N, Chattipakorn SC, Chattipakorn N, Wongcharoen W. Effects of sodium-glucose cotransporter-2 inhibitor on atrial high-rate episodes in patients with cardiovascular implantable electronic device: a randomized controlled trial. Sci Rep 2024; 14:27649. [PMID: 39532868 PMCID: PMC11557967 DOI: 10.1038/s41598-024-74631-x] [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: 07/19/2024] [Accepted: 09/27/2024] [Indexed: 11/16/2024] Open
Abstract
Prior research has demonstrated an association between sodium-glucose cotransporter 2 (SGLT2) inhibitor and a reduced incidence of atrial fibrillation (AF). Given the established link between mitochondrial dysfunction and AF, this study aimed to explore the impact of SGLT2 inhibitors on AF burden and plausible antiarrhythmic mechanisms in patients with cardiovascular implantable electronic devices (CIEDs). Patients with atrial high-rate episodes (AHREs) detected by CIEDs were randomized to receive either 10 mg of dapagliflozin or a placebo for 3 months. AF burdens were quantified via CIEDs interrogations as AHREs duration, percentage, and number of episodes at baseline and after 3 months of treatment. Mitochondrial parameters, cellular oxidative stress, and norepinephrine levels were measured in peripheral blood mononuclear cells (PBMCs). A total of 54 patients with CIEDs were enrolled in the study. Among them, 36 patients (66.7%) had a history of clinical AF, and 9 patients (16.7%) had diabetes mellitus. After 3 months of the assigned treatment, the median longest AHRE duration decreased similarly in both the dapagliflozin and placebo groups (-77.0 vs. -162.0 min, p = 0.442). Clinical AF, as opposed to subclinical AF, was independently linked to decreased basal respiration and adenosine triphosphate (ATP) production. Although the changes in AHREs burden over the 3 months did not significantly differ between the dapagliflozin and placebo groups, dapagliflozin significantly decreased the number of AHREs per month by 2.2 episodes among patients with clinical AF, whereas the placebo group experienced an increase of 0.6 episodes (p = 0.048). Additionally, dapagliflozin significantly reduced cellular oxidative stress (from 26840 to 18164 arbitrary units, p = 0.049) and improved mitochondrial spare respiratory capacity (SRC) percentage (from 166 to 202%, p = 0.016) in patients with clinical AF. Dapagliflozin did not significantly reduce the longest AHRE duration in patients with CIED. However, in the subgroup of patients with clinical AF, dapagliflozin reduced the number of AHREs potentially via reduction of cellular oxidative stress and enhancement of mitochondrial function.The study protocol was registered at the Thai Clinical Trials Registry (TCTR identification number TCTR20210315003) on March 15, 2021.
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Affiliation(s)
- Teerapat Nantsupawat
- Division of Cardiology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Nattayaporn Apaijai
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Arintaya Phrommintikul
- Division of Cardiology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Narawudt Prasertwitayakij
- Division of Cardiology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Siriporn C Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand
| | - Wanwarang Wongcharoen
- Division of Cardiology, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand.
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Bode D, Pronto JRD, Schiattarella GG, Voigt N. Metabolic remodelling in atrial fibrillation: manifestations, mechanisms and clinical implications. Nat Rev Cardiol 2024; 21:682-700. [PMID: 38816507 DOI: 10.1038/s41569-024-01038-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/22/2024] [Indexed: 06/01/2024]
Abstract
Atrial fibrillation (AF) is a continually growing health-care burden that often presents together with metabolic disorders, including diabetes mellitus and obesity. Current treatments often fall short of preventing AF and its adverse outcomes. Accumulating evidence suggests that metabolic disturbances can promote the development of AF through structural and electrophysiological remodelling, but the underlying mechanisms that predispose an individual to AF are aetiology-dependent, thus emphasizing the need for tailored therapeutic strategies to treat AF that target an individual's metabolic profile. AF itself can induce changes in glucose, lipid and ketone metabolism, mitochondrial function and myofibrillar energetics (as part of a process referred to as 'metabolic remodelling'), which can all contribute to atrial dysfunction. In this Review, we discuss our current understanding of AF in the setting of metabolic disorders, as well as changes in atrial metabolism that are relevant to the development of AF. We also describe the potential of available and emerging treatment strategies to target metabolic remodelling in the setting of AF and highlight key questions and challenges that need to be addressed to improve outcomes in these patients.
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Affiliation(s)
- David Bode
- Max Rubner Center for Cardiovascular Metabolic Renal Research (MRC), Deutsches Herzzentrum der Charité (DHZC), Charité - Universitätsmedizin Berlin, Berlin, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Julius Ryan D Pronto
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany
| | - Gabriele G Schiattarella
- Max Rubner Center for Cardiovascular Metabolic Renal Research (MRC), Deutsches Herzzentrum der Charité (DHZC), Charité - Universitätsmedizin Berlin, Berlin, Germany.
- DZHK (German Center for Cardiovascular Research), Partner Site Berlin, Berlin, Germany.
- Translational Approaches in Heart Failure and Cardiometabolic Disease, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany.
- Division of Cardiology, Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy.
| | - Niels Voigt
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Georg-August University Göttingen, Göttingen, Germany.
- DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, Göttingen, Germany.
- Cluster of Excellence 'Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells' (MBExC), University of Göttingen, Göttingen, Germany.
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Chakraborty P, Nattel S, Nanthakumar K, Connelly KA, Husain M, Po SS, Ha ACT. Sudden cardiac death due to ventricular arrhythmia in diabetes mellitus: A bench to bedside review. Heart Rhythm 2024; 21:1827-1837. [PMID: 38848857 DOI: 10.1016/j.hrthm.2024.05.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 05/27/2024] [Accepted: 05/31/2024] [Indexed: 06/09/2024]
Abstract
Diabetes mellitus (DM) confers an increased risk of sudden cardiac death (SCD) independent of its associated cardiovascular comorbidities. DM induces adverse structural, electrophysiologic, and autonomic cardiac remodeling that can increase one's risk of ventricular arrhythmias and SCD. Although glycemic control and prevention of microvascular and macrovascular complications are cornerstones in the management of DM, they are not adequate for the prevention of SCD. In this narrative review, we describe the contribution of DM to the pathophysiologic mechanism of SCD beyond its role in atherosclerotic cardiovascular disease and heart failure. On the basis of this pathophysiologic framework, we outline potential preventive and therapeutic strategies to mitigate the risk of SCD in this population of high-risk patients.
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Affiliation(s)
- Praloy Chakraborty
- Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | | | - Kumaraswamy Nanthakumar
- Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Kim A Connelly
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Keenan Research Centre for Biomedical Science, Unity Health Toronto, St Michael's Hospital, Toronto, Ontario, Canada; Department of Physiology, University of Toronto, Toronto, Ontario, Canada
| | - Mansoor Husain
- Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Ted Rogers Centre for Heart Research, University of Toronto, Toronto, Ontario, Canada
| | - Sunny S Po
- Heart Rhythm Institute, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Andrew C T Ha
- Peter Munk Cardiac Center, Toronto General Hospital, University Health Network, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
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Van Gelder IC, Rienstra M, Bunting KV, Casado-Arroyo R, Caso V, Crijns HJGM, De Potter TJR, Dwight J, Guasti L, Hanke T, Jaarsma T, Lettino M, Løchen ML, Lumbers RT, Maesen B, Mølgaard I, Rosano GMC, Sanders P, Schnabel RB, Suwalski P, Svennberg E, Tamargo J, Tica O, Traykov V, Tzeis S, Kotecha D. 2024 ESC Guidelines for the management of atrial fibrillation developed in collaboration with the European Association for Cardio-Thoracic Surgery (EACTS). Eur Heart J 2024; 45:3314-3414. [PMID: 39210723 DOI: 10.1093/eurheartj/ehae176] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/04/2024] Open
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Sarkar A, Fanous KI, Marei I, Ding H, Ladjimi M, MacDonald R, Hollenberg MD, Anderson TJ, Hill MA, Triggle CR. Repurposing Metformin for the Treatment of Atrial Fibrillation: Current Insights. Vasc Health Risk Manag 2024; 20:255-288. [PMID: 38919471 PMCID: PMC11198029 DOI: 10.2147/vhrm.s391808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024] Open
Abstract
Metformin is an orally effective anti-hyperglycemic drug that despite being introduced over 60 years ago is still utilized by an estimated 120 to 150 million people worldwide for the treatment of type 2 diabetes (T2D). Metformin is used off-label for the treatment of polycystic ovary syndrome (PCOS) and for pre-diabetes and weight loss. Metformin is a safe, inexpensive drug with side effects mostly limited to gastrointestinal issues. Prospective clinical data from the United Kingdom Prospective Diabetes Study (UKPDS), completed in 1998, demonstrated that metformin not only has excellent therapeutic efficacy as an anti-diabetes drug but also that good glycemic control reduced the risk of micro- and macro-vascular complications, especially in obese patients and thereby reduced the risk of diabetes-associated cardiovascular disease (CVD). Based on a long history of clinical use and an excellent safety record metformin has been investigated to be repurposed for numerous other diseases including as an anti-aging agent, Alzheimer's disease and other dementias, cancer, COVID-19 and also atrial fibrillation (AF). AF is the most frequently diagnosed cardiac arrythmia and its prevalence is increasing globally as the population ages. The argument for repurposing metformin for AF is based on a combination of retrospective clinical data and in vivo and in vitro pre-clinical laboratory studies. In this review, we critically evaluate the evidence that metformin has cardioprotective actions and assess whether the clinical and pre-clinical evidence support the use of metformin to reduce the risk and treat AF.
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Affiliation(s)
- Aparajita Sarkar
- Department of Medical Education, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Kareem Imad Fanous
- Department of Medical Education, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Isra Marei
- Department of Pharmacology & Medical Education, Weill Cornell Medicine- Qatar, Doha, Qatar
| | - Hong Ding
- Department of Pharmacology & Medical Education, Weill Cornell Medicine- Qatar, Doha, Qatar
| | - Moncef Ladjimi
- Department of Biochemistry & Medical Education, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Ross MacDonald
- Health Sciences Library, Weill Cornell Medicine-Qatar, Doha, Qatar
| | - Morley D Hollenberg
- Department of Physiology & Pharmacology, and Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Todd J Anderson
- Department of Cardiac Sciences and Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Michael A Hill
- Dalton Cardiovascular Research Center & Department of Medical Pharmacology & Physiology, School of Medicine, University of Missouri, Columbia, Missouri, USA
| | - Chris R Triggle
- Department of Pharmacology & Medical Education, Weill Cornell Medicine- Qatar, Doha, Qatar
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Zhong C, Bai J, Qu X, Liu Y, Li Z, Hao H, Qiao S, Zhang Z, Xu X, Si J, Xu W, Xu B, Kang L. Metformin reduces new-onset atrial fibrillation risk rather than atrial fibrillation burden in type 2 diabetes patients: A case-control study. Heliyon 2024; 10:e30992. [PMID: 38818187 PMCID: PMC11137400 DOI: 10.1016/j.heliyon.2024.e30992] [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: 09/05/2023] [Revised: 04/19/2024] [Accepted: 05/09/2024] [Indexed: 06/01/2024] Open
Abstract
Background The effects of metformin on atrial fibrillation (AF) in type 2 diabetes patients remain unclear. We aimed to explore the effects of metformin on AF, including new-onset AF and AF burden, in type 2 diabetes patients with pacemakers. Methods and results This retrospective study included a total of 227 patients. Based on the presence of paroxysmal AF, the patients were divided into a paroxysmal AF group (n = 80) and a non-AF group (n = 147). In the non-AF group, a significant association was observed between metformin use and a lower risk of new-onset AF in multivariable Cox hazards models (hazard ratio [HR]: 0.36; 95 % confidence interval [CI]: 0.14-0.91; p = 0.0311*) when adjusted for age, sex, body mass index (BMI), drinking, smoking, left atrial dimension, creatinine, complications, and drugs. In the paroxysmal AF group, univariable analysis indicated no association between the AF burden and metformin use (p = 0.817). Furthermore, when adjusted for metformin use, age, sex, BMI, drinking, smoking, cardiovascular disease, myocardial infarction, heart failure, stroke, and ejection fraction in multivariable Cox hazards models, we found a lower proportion of major adverse cardiovascular events (MACEs) both in the total (HR: 0.28; 95 % CI: 0.1-0.82; p = 0.0202*) and the non-AF group (HR: 0.19; 95 % CI: 0.05-0.79; p = 0.0223*) compared to that in the AF group (HR: 0.31; 95 % CI: 0.02-4.41; p = 0.3879). Conclusion In type 2 diabetes patients with pacemakers, metformin reduced the probability of new-onset AF instead of addressing the AF burden. Furthermore, metformin therapy decreased the incidence of MACEs in type 2 diabetes patients without AF.
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Affiliation(s)
- Chongxia Zhong
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Jian Bai
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Xinhong Qu
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Yihai Liu
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Zhu Li
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Han Hao
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Shiyang Qiao
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Zhe Zhang
- Department of Cardiology, Nanjing Drum Tower Hospital, Clinical School of Nanjing Medical University, Nanjing, China
| | - Xiaoying Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, Clinical School of Nanjing University of Traditional Chinese Medicine, Nanjing, China
| | - Jiayi Si
- Department of Cardiology, Nanjing Drum Tower Hospital, Clinical School of Nanjing University of Traditional Chinese Medicine, Nanjing, China
| | - Wei Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Biao Xu
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
- Nanjing Key Laboratory for Cardiovascular Information and Health Engineering Medicine, China
| | - Lina Kang
- Department of Cardiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
- Nanjing Key Laboratory for Cardiovascular Information and Health Engineering Medicine, China
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9
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Mascarenhas L, Downey M, Schwartz G, Adabag S. Antiarrhythmic effects of metformin. Heart Rhythm O2 2024; 5:310-320. [PMID: 38840768 PMCID: PMC11148504 DOI: 10.1016/j.hroo.2024.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024] Open
Abstract
Atrial fibrillation/flutter (AF) is a major public health problem and is associated with stroke, heart failure, dementia, and death. It is estimated that 20%-30% of Americans will develop AF at some point in their life. Current medications to prevent AF have limited efficacy and significant adverse effects. Newer and safer therapies to prevent AF are needed. Ventricular arrhythmias are less prevalent than AF but may have significant consequences including sudden cardiac death. Metformin is the most prescribed, first-line medication for treatment of diabetes mellitus (DM). It decreases hepatic glucose production but also reduces inflammation and oxidative stress. Experimental studies have shown that metformin improves metabolic, electrical, and histologic risk factors associated with AF and ventricular arrhythmias. Furthermore, in large clinical observational studies, metformin has been associated with a reduced risk of AF in people with DM. These data suggest that metformin may have antiarrhythmic properties and may be a candidate to be repurposed as a medication to prevent cardiac arrhythmias. In this article, we review the clinical observational and experimental evidence for the association between metformin and cardiac arrhythmias. We also discuss the potential antiarrhythmic mechanisms underlying this association. Repurposing a well-tolerated, safe, and inexpensive medication to prevent cardiac arrhythmias has significant positive public health implications.
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Affiliation(s)
- Lorraine Mascarenhas
- Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota
| | - Michael Downey
- Department of Cardiology, Hennepin County Medical Center, Minneapolis, Minnesota
| | - Gregory Schwartz
- Cardiology Section, Rocky Mountain Regional VA Medical Center and University of Colorado School of Medicine, Aurora, Colorado
| | - Selcuk Adabag
- Department of Medicine, University of Minnesota Medical School, Minneapolis, Minnesota
- Department of Cardiology, Minneapolis Veterans Affairs Medical Center and University of Minnesota, Minneapolis, Minnesota
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10
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Juttla PK, Chege BM, Mwangi PW, Bukachi F. Dapagliflozin Pretreatment Prevents Cardiac Electrophysiological Changes in a Diet and Streptozotocin Induction of Type 2 Diabetes in Rats: A Potential New First-Line? J Exp Pharmacol 2024; 16:123-133. [PMID: 38525051 PMCID: PMC10961018 DOI: 10.2147/jep.s443169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 02/22/2024] [Indexed: 03/26/2024] Open
Abstract
Purpose Dapagliflozin exerts cardioprotective effects in Type 2 Diabetes Mellitus (T2DM). However, whether these effects prevent electrocardiographic changes associated with T2DM altogether remain unknown. Our aim was to investigate the prophylactic effect of dapagliflozin pretreatment on the rat ECG using a high-fat, high-fructose (HFHf) diet and a low dose streptozotocin (STZ) model of T2DM. Methods Twenty-five (25) rats were randomized into five (5) groups: normal control receiving a normal diet while the other groups received an 8-week HFHf and 40mg/kg STZ on day 42, and either: saline for the diabetic control (1 mg/kg/d), low dose (1.0 mg/kg/d) and high dose dapagliflozin (1.6 mg/kg/d), or metformin (250 mg/kg/d). Oral glucose tolerance (OGT), electrocardiograms (ECGs), paracardial adipose mass, and left ventricular fibrosis were determined. Data were analyzed using GraphPad version 9.0.0.121, with the level of significance at p < 0.05. Results Compared to the diabetic control group, a high dose of dapagliflozin preserved the OGT (p = 0.0001), QRS-duration (p = 0.0263), QT-interval (p = 0.0399), and QTc intervals (p = 0.0463). Furthermore, the high dose dapagliflozin group had the lowest paracardial adipose mass (p = 0.0104) and fibrotic area (p = 0.0001). In contrast, while metformin showed favorable effects on OGT (p = 0.0025), paracardial adiposity (p = 0.0153) and ventricular fibrosis (p = 0.0291), it did not demonstrate significant antiarrhythmic effects. Conclusion Pretreatment with higher doses of Dapagliflozin exhibits prophylactic cardioprotective characteristics against diabetic cardiomyopathy that include antifibrotic and antiarrhythmic qualities. This suggests that higher doses of dapagliflozin could be a more effective initial therapeutic option in T2DM.
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Affiliation(s)
| | | | | | - Frederick Bukachi
- Department of Medical Physiology, University of Nairobi, Nairobi, Kenya
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11
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Chen L, Yang X, Wang K, Guo L, Zou C. Humanin inhibits lymphatic endothelial cells dysfunction to alleviate myocardial infarction-reperfusion injury via BNIP3-mediated mitophagy. Free Radic Res 2024; 58:180-193. [PMID: 38535980 DOI: 10.1080/10715762.2024.2333074] [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: 04/11/2023] [Accepted: 02/20/2024] [Indexed: 05/02/2024]
Abstract
OBJECTIVE Acute myocardial infarction (AMI) ranks among the top contributors to sudden death and disability worldwide. It should be noted that current therapies always cause increased reperfusion damage. Evidence suggests that humanin (HN) reduces mitochondrial dysfunction to have cardio-protective effects against MI-reperfusion injury. In this context, we hypothesized that HN may attenuate MI-reperfusion injury by alleviating lymphatic endothelial cells dysfunction through the regulation of mitophagy. MATERIALS AND METHODS In this study, primary lymphatic endothelial cells were selected as the experimental model. Cells were maintained under 1% O2 to induce a hypoxic phenotype. For in vivo experiments, the left coronary arteries of C57/BL6 mice were clamped for 45 min followed by 24 h reperfusion to develop MI-reperfusion injury. The volume of infarcted myocardium in MI-reperfusion injury mouse models were TTC staining. PCR and western blot were used to quantify the expression of autophagy-, mitophagy- and mitochondria-related markers. The fibrosis and apoptosis in the ischemic area were evaluated for Masson staining and TUNEL respectively. We also used western blot to analyze the expression of VE-Cadherin in lymphatic endothelial cells. RESULTS We firstly exhibited a specific mechanism by which HN mitigates MI-reperfusion injury. We demonstrated that HN effectively reduces such injury in vivo and also inhibits dysfunction in lymphatic endothelial cells in vitro. Importantly, this inhibitory effect is mediated through BNIP3-associated mitophagy. CONCLUSIONS In conclusion, HN alleviates myocardial infarction-reperfusion injury by inhibiting lymphatic endothelial cells dysfunction, primarily through BNIP3-mediated mitophagy.
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Affiliation(s)
- Lu Chen
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Center for Cardiovascular Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaohua Yang
- Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kai Wang
- Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Lina Guo
- Center for Cardiovascular Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Cao Zou
- Department of Cardiology, The First Affiliated Hospital of Soochow University, Suzhou, China
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12
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Gul EE, Bektasoglu G, Dogan Z. Brugada phenocopy associated with multiple psychotic drugs. J Electrocardiol 2023; 81:156-158. [PMID: 37734316 DOI: 10.1016/j.jelectrocard.2023.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/23/2023]
Abstract
Brugada phenocopy (BrP) is a clinical condition characterized by transient ECG changes of Brugada syndrome (BrS), which can be due to various clinical conditions. We describe a case report of BrP due to psychotic drugs.
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Affiliation(s)
- Enes Elvin Gul
- Department of Cardiology, Istanbul Atlas University, Medicine Hospital, Istanbul, Turkiye.
| | - Gokhan Bektasoglu
- Department of Cardiology, Istanbul Atlas University, Medicine Hospital, Istanbul, Turkiye
| | - Zeki Dogan
- Department of Cardiology, Istanbul Atlas University, Medicine Hospital, Istanbul, Turkiye
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13
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Han X, Liu Y, Li G, Tse G, Liu T. A narrative review on prediabetes or diabetes and atrial fibrillation: From molecular mechanisms to clinical practice. HEART AND MIND 2023; 7:207-216. [DOI: 10.4103/hm.hm-d-23-00028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/19/2023] [Indexed: 01/11/2025] Open
Abstract
Based on glucose levels, people fall into three groups, normal individuals, prediabetic patients, and diabetic mellitus (DM) patients. Prediabetes (pre-DM) is an intermediate condition that exists between normal glucose levels and DM. Atrial fibrillation (AF), one of the most prevalent cardiac arrhythmias in medical practice, contributes to a considerable morbidity and mortality rate. In this review, we looked at the clinical symptoms, pathological alterations, molecular mechanisms, and associated risk factors of pre-DM, type 2 DM (T2DM), and AF. In clinical practice, pre-DM can increase the prevalence of AF. In the hyperglycemic state, oxidative stress, inflammation, and endoplasmic reticulum stress can cause alterations in atrial cell or cardiac fibroblast function through tumor necrosis factor-α/nuclear factor-κB (NF-κB)/transforming growth factor-β, mitogen-activated protein kinase-matrix metalloproteinase-9 and PARP-1 is poly (ADP-ribose) polymerase 1. IκB kinase-α/NF-κB pathways, and further cause atria undergo structural, electrical, and neural remodeling which lead to the occurrence and persistence of AF. In addition, pre-DM and T2DM may worsen as a result of obesity, obstructive sleep apnea, and arterial hypertension. Furthermore, clinical researches have demonstrated that lifestyle interventions and/or pharmacotherapy in pre-DM patients can effectively delay the progresssion of pre-DM to T2DM. Individualized glycemic management and AF management should be provided to AF patients with pre-DM or DM.
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Affiliation(s)
- Xuyao Han
- Department of Cardiology, Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Ying Liu
- Department of Cardiology, Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Guangping Li
- Department of Cardiology, Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
| | - Gary Tse
- Department of Cardiology, Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
- Kent and Medway Medical School, University of Kent, Canterbury, United Kingdom
- School of Nursing and Health Studies, Hong Kong Metropolitan University, Hong Kong, China
| | - Tong Liu
- Department of Cardiology, Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China
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14
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Leopoulou M, Theofilis P, Kordalis A, Papageorgiou N, Sagris M, Oikonomou E, Tousoulis D. Diabetes mellitus and atrial fibrillation-from pathophysiology to treatment. World J Diabetes 2023; 14:512-527. [PMID: 37273256 PMCID: PMC10236990 DOI: 10.4239/wjd.v14.i5.512] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/21/2023] [Accepted: 04/07/2023] [Indexed: 05/15/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) is a leading risk factor for cardiovascular complications around the globe and one of the most common medical conditions. Atrial fibrillation (AF) is the most common supraventricular arrhythmia, with a rapidly increasing prevalence. T2DM has been closely associated with the risk of AF development, identified as an independent risk factor. Regarding cardio-vascular complications, both AF and T2DM have been linked with high mortality. The underlying pathophysiology has not been fully determined yet; however, it is multifactorial, including structural, electrical, and autonomic pathways. Novel therapies include pharmaceutical agents in sodium-glucose cotransporter-2 inhibitors, as well as antiarrhythmic strategies, such as cardioversion and ablation. Of interest, glucose-lowering therapies may affect the prevalence of AF. This review presents the current evidence regarding the connection between the two entities, the pathophysiological pathways that link them, and the therapeutic options that exist.
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Affiliation(s)
- Marianna Leopoulou
- 1st Cardiology Clinic, ‘Hippokration’ General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 11527, Greece
| | - Panagiotis Theofilis
- 1st Cardiology Clinic, ‘Hippokration’ General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 11527, Greece
| | - Athanasios Kordalis
- 1st Cardiology Clinic, ‘Hippokration’ General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 11527, Greece
| | - Nikolaos Papageorgiou
- 1st Cardiology Clinic, ‘Hippokration’ General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 11527, Greece
| | - Marios Sagris
- 1st Cardiology Clinic, ‘Hippokration’ General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 11527, Greece
| | - Evangelos Oikonomou
- 3rd Cardiology Clinic, ‘Sotiria’ Chest Diseases Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 11527, Greece
| | - Dimitris Tousoulis
- 1st Cardiology Clinic, ‘Hippokration’ General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens 11527, Greece
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15
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The association of trastuzumab with atrial fibrillation and heart failure in breast cancer patients in routine clinical practice: a population-based propensity score matching and competing risk model analysis. Breast Cancer Res Treat 2023; 198:113-122. [PMID: 36586037 PMCID: PMC9883308 DOI: 10.1007/s10549-022-06753-7] [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: 06/08/2022] [Accepted: 09/18/2022] [Indexed: 01/01/2023]
Abstract
PURPOSE Trastuzumab, a potent anti-human epidermal growth factor receptor 2 (HER2) monoclonal antibody, is conditionally reimbursed by the Taiwan National Health Insurance (NHI) for HER2-positive breast cancer (BC). Trastuzumab-induced cardiotoxicity studies have well characterized heart failure (HF) but fewer addressed arrhythmia, particularly the association of potential life threatening atrial fibrillation (Af) is poorly characterized. We aimed to study the trastuzumab-related risk of Af and HF using the claimed data of Taiwan NHI. METHODS A nationwide retrospective cohort of patients with BC from the Taiwan NHI reimbursement database from January 2007 to December 2016 was analyzed. Propensity score matching and competing risk model analysis were used for adjusting confounding concurrent medication or comorbidities and competing events. The HF study was used to validate the method used. RESULTS For Af, 12,472 trastuzumab users were matched with 12,472 non-trastuzumab users. For HF, 12,241 trastuzumab users and 12,241 non-users were enrolled. We found that trastuzumab users had significantly worse HF-free survival but not Af-free survival than non-trastuzumab users. In the competing risk analysis, the use of trastuzumab did not increase the risk of Af (hazard ratio [HR] 0.76, P = 0.0006) but was associated with HF (HR 1.19, P = 0.0052). The risk trends among stratifications by comorbidities and concurrent medication remained in similar directions for both Af and HF. CONCLUSION Trastuzumab in real-world practice was associated with an increased risk of HF, but was not associated with an increased risk of Af in BC patients. Trastuzumab-induced arrhythmogenic effects may be masked by concurrent heart-protecting measures, more prominent roles of comorbidities or concurrent medications under real-world settings. Further studies are required.
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16
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Scheen AJ. Antidiabetic agents and risk of atrial fibrillation/flutter: A comparative critical analysis with a focus on differences between SGLT2 inhibitors and GLP-1 receptor agonists. DIABETES & METABOLISM 2022; 48:101390. [DOI: 10.1016/j.diabet.2022.101390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/22/2022] [Accepted: 09/22/2022] [Indexed: 04/11/2023]
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17
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Scheen AJ. Glucose-lowering agents and risk of ventricular arrhythmias and sudden cardiac death: a comprehensive review ranging from sulphonylureas to SGLT2 inhibitors. DIABETES & METABOLISM 2022; 48:101405. [DOI: 10.1016/j.diabet.2022.101405] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/17/2022] [Accepted: 10/17/2022] [Indexed: 11/05/2022]
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18
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Lee TTL, Hui JMH, Lee YHA, Satti DI, Shum YKL, Kiu PTH, Wai AKC, Liu T, Wong WT, Chan JSK, Cheung BMY, Wong ICK, Cheng SH, Tse G. Sulfonylurea Is Associated With Higher Risks of Ventricular Arrhythmia or Sudden Cardiac Death Compared With Metformin: A Population-Based Cohort Study. J Am Heart Assoc 2022; 11:e026289. [PMID: 36102222 PMCID: PMC9683657 DOI: 10.1161/jaha.122.026289] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/23/2022] [Indexed: 12/29/2022]
Abstract
Background Commonly prescribed diabetic medications such as metformin and sulfonylurea may be associated with different arrhythmogenic risks. This study compared the risk of ventricular arrhythmia or sudden cardiac death between metformin and sulfonylurea users in patients with type 2 diabetes. Methods and Results Patients aged ≥40 years who were diagnosed with type 2 diabetes or prescribed antidiabetic agents in Hong Kong between January 1, 2009, and December 31, 2009, were included and followed up until December 31, 2019. Patients prescribed with both metformin and sulfonylurea or had prior myocardial infarction were excluded. The study outcome was a composite of ventricular arrhythmia or sudden cardiac death. Metformin users and sulfonylurea users were matched at a 1:1 ratio by propensity score matching. The matched cohort consisted of 16 596 metformin users (47.70% men; age, 68±11 years; mean follow-up, 4.92±2.55 years) and 16 596 sulfonylurea users (49.80% men; age, 70±11 years; mean follow-up, 4.93±2.55 years). Sulfonylurea was associated with higher risk of ventricular arrhythmia or sudden cardiac death than metformin hazard ratio (HR, 1.90 [95% CI, 1.73-2.08]). Such difference was consistently observed in subgroup analyses stratifying for insulin usage or known coronary heart disease. Conclusions Sulfonylurea use is associated with higher risk of ventricular arrhythmia or sudden cardiac death than metformin in patients with type 2 diabetes.
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MESH Headings
- Aged
- Aged, 80 and over
- Arrhythmias, Cardiac/chemically induced
- Arrhythmias, Cardiac/complications
- Arrhythmias, Cardiac/epidemiology
- Cohort Studies
- Death, Sudden, Cardiac/epidemiology
- Death, Sudden, Cardiac/etiology
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/drug therapy
- Diabetes Mellitus, Type 2/epidemiology
- Female
- Humans
- Hypoglycemic Agents/adverse effects
- Insulin/therapeutic use
- Male
- Metformin/adverse effects
- Middle Aged
- Retrospective Studies
- Sulfonylurea Compounds/adverse effects
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Affiliation(s)
- Teddy Tai Loy Lee
- Department of Emergency MedicineSchool of Clinical Medicine, The University of Hong KongHong KongChina
- Diabetes Research Unit, Cardiovascular Analytics GroupChina‐UK CollaborationHong KongChina
| | - Jeremy Man Ho Hui
- Diabetes Research Unit, Cardiovascular Analytics GroupChina‐UK CollaborationHong KongChina
| | - Yan Hiu Athena Lee
- Diabetes Research Unit, Cardiovascular Analytics GroupChina‐UK CollaborationHong KongChina
| | - Danish Iltaf Satti
- Diabetes Research Unit, Cardiovascular Analytics GroupChina‐UK CollaborationHong KongChina
| | - Yuki Ka Ling Shum
- Diabetes Research Unit, Cardiovascular Analytics GroupChina‐UK CollaborationHong KongChina
| | - Pias Tang Hoi Kiu
- Diabetes Research Unit, Cardiovascular Analytics GroupChina‐UK CollaborationHong KongChina
| | - Abraham Ka Chung Wai
- Department of Emergency MedicineSchool of Clinical Medicine, The University of Hong KongHong KongChina
| | - Tong Liu
- Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical UniversityTianjinChina
| | - Wing Tak Wong
- School of Life Sciences, State Key Laboratory of Agrobiotechnology (CUHK), The Chinese University of Hong KongHong KongChina
| | - Jeffrey Shi Kai Chan
- Diabetes Research Unit, Cardiovascular Analytics GroupChina‐UK CollaborationHong KongChina
| | - Bernard Man Yung Cheung
- Division of Clinical PharmacologySchool of Clinical Medicine, The University of Hong KongHong KongChina
| | - Ian Chi Kei Wong
- Department of Pharmacology and PharmacyUniversity of Hong KongHong KongChina
- UCL School of PharmacyMedicines Optimisation Research and Education (CMORE)LondonUnited Kingdom
| | - Shuk Han Cheng
- Department of Infectious Diseases and Public HealthCity University of Hong KongHong KongChina
| | - Gary Tse
- Diabetes Research Unit, Cardiovascular Analytics GroupChina‐UK CollaborationHong KongChina
- Tianjin Institute of Cardiology, The Second Hospital of Tianjin Medical UniversityTianjinChina
- Kent and Medway Medical SchoolCanterburyUnited Kingdom
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Yildiz M, Lavie CJ, Morin DP, Oktay AA. The complex interplay between diabetes mellitus and atrial fibrillation. Expert Rev Cardiovasc Ther 2022; 20:707-717. [PMID: 35984314 DOI: 10.1080/14779072.2022.2115357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
INTRODUCTION : A growing body of evidence suggests that diabetes mellitus (DM) is associated with an increased risk of new-onset atrial fibrillation (AF) and contributes to suboptimal arrhythmia control and poor prognosis in patients with AF. The high prevalence of AF among patients with DM is primarily attributed to common risk factors, shared pathophysiological mechanisms, and associated atrial remodeling and autonomic dysfunction. AREAS COVERED : This comprehensive review covers the current data on the role of DM in the development and prognosis of AF. In addition, we review the impact of anti-DM medications on AF prevention and the role of anticoagulation in patients with coexisting DM and AF. EXPERT OPINION : DM is independently associated with new-onset AF, and the coexistence of these two conditions contributes to poor outcomes, from reduced quality of life to increased risks of thromboembolic events, heart failure, and mortality. Despite this strong link, the current evidence is insufficient to recommend routine screening for AF in patients with DM. Although some observations exist on preventing AF with anti-DM medications, randomized controlled trials are warranted to explore the proposed benefits of novel anti-DM medicines in reducing the risk of incident AF.
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Affiliation(s)
- Mehmet Yildiz
- The Carl and Edyth Lindner Center for Research and Education at The Christ Hospital, Cincinnati, OH
| | - Carl J Lavie
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School-The University of Queensland School of Medicine, New Orleans, LA
| | - Daniel P Morin
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School-The University of Queensland School of Medicine, New Orleans, LA
| | - Ahmet Afsin Oktay
- The Heart and Vascular Institute, Rush University Medical Center, Chicago, IL
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20
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Zhang G, Chen S, Jia J, Liu C, Wang W, Zhang H, Zhen X. Development and Evaluation of Novel Metformin Derivative Metformin Threonate for Brain Ischemia Treatment. Front Pharmacol 2022; 13:879690. [PMID: 35800435 PMCID: PMC9253272 DOI: 10.3389/fphar.2022.879690] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/11/2022] [Indexed: 11/25/2022] Open
Abstract
Epidemiologic data reveal that diabetes patients taking metformin exhibit lower incidence of stroke and better functional outcomes during post-stroke neurologic recovery. We previously demonstrated that chronic post-ischemic administration of metformin improved functional recovery in experimental cerebral ischemia. However, few beneficial effects of metformin on the acute phase of cerebral ischemia were reported either in experimental animals or in stroke patients, which limits the application of metformin in stroke. We hypothesized that slow cellular uptake of metformin hydrochloride may contribute to the lack of efficacy in acute stroke. We recently developed and patented a novel metformin derivative, metformin threonate (SHY-01). Pharmacokinetic profile in vivo and in cultured cells revealed that metformin is more rapidly uptaken and accumulated from SHY-01 than metformin hydrochloride. Accordingly, SHY-01 treatment exhibited more potent and rapid activation of AMP-activated protein kinase (AMPK). Furthermore, SHY-01 elicited a stronger inhibition of microglia activation and more potent neuroprotection when compared to metformin hydrochloride. SHY-01 administration also had superior beneficial effects on neurologic functional recovery in experimental stroke and offered strong protection against acute cerebral ischemia with reduced infarct volume and mortality, as well as the improved sensorimotor and cognitive functions in rats. Collectively, these results indicated that SHY-01 had an improved pharmacokinetic and pharmacological profile and produced more potent protective effects on acute stroke and long-term neurological damage. We propose that SHY-01 is a very promising therapeutic candidate for cerebral ischemic stroke.
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Affiliation(s)
- Gufang Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- *Correspondence: Xuechu Zhen, ; Gufang Zhang,
| | - Shuangshuang Chen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Jia Jia
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Chun Liu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Weipeng Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- Department of Pharmaceutical Analysis, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Hongjian Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- Department of Pharmaceutical Analysis, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
| | - Xuechu Zhen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases, Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, China
- *Correspondence: Xuechu Zhen, ; Gufang Zhang,
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21
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Metformin Reduces Potassium Currents and Prolongs Repolarization in Non-Diabetic Heart. Int J Mol Sci 2022; 23:ijms23116021. [PMID: 35682699 PMCID: PMC9181026 DOI: 10.3390/ijms23116021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/14/2022] [Accepted: 05/24/2022] [Indexed: 01/27/2023] Open
Abstract
Metformin is the first choice drug for the treatment of type 2 diabetes due to positive results in reducing hyperglycaemia and insulin resistance. However, diabetic patients have higher risk of ventricular arrhythmia and sudden cardiac death, and metformin failed to reduce ventricular arrhythmia in clinical trials. In order to explore the mechanisms responsible for the lack of protective effect, we investigated in vivo the effect of metformin on cardiac electrical activity in non-diabetic rats; and in vitro in isolated ventricular myocytes, HEK293 cells expressing the hERG channel and human induced pluripotent stem cells derived cardiomyocytes (hIPS-CMs). Surface electrocardiograms showed that long-term metformin treatment (7 weeks) at therapeutic doses prolonged cardiac repolarization, reflected as QT and QTc interval duration, and increased ventricular arrhythmia during the caffeine/dobutamine challenge. Patch-clamp recordings in ventricular myocytes isolated from treated animals showed that the cellular mechanism is a reduction in the cardiac transient outward potassium current (Ito). In vitro, incubation with metformin for 24 h also reduced Ito, prolonged action potential duration, and increased spontaneous contractions in ventricular myocytes isolated from control rats. Metformin incubation also reduced IhERG in HEK293 cells. Finally, metformin incubation prolonged action potential duration at 30% and 90% of repolarization in hIPS-CMs, which is compatible with the reduction of Ito and IhERG. Our results show that metformin directly modifies the electrical behavior of the normal heart. The mechanism consists in the inhibition of repolarizing currents and the subsequent decrease in repolarization capacity, which prolongs AP and QTc duration.
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Bourazana A, Giamouzis G, Skoularigis J, Triposkiadis F, Xanthopoulos A. Glucose lowering does not necessarily reduce cardiovascular risk in type 2 diabetes. World J Cardiol 2022; 14:266-270. [PMID: 35582467 PMCID: PMC9048273 DOI: 10.4330/wjc.v14.i4.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/29/2021] [Accepted: 03/16/2022] [Indexed: 02/06/2023] Open
Abstract
Diabetes mellitus (DM) is a health condition characterized by glucose dysregulation and affects millions of people worldwide. The presentation of heart failure in diabetic cardiomyopathy extends over a wide phenotypic spectrum, commencing from asymptomatic, subclinical structural abnormalities to severely symptomatic biventricular dysfunction with increased mortality risk. Similarly, the spectrum of systolic dysfunction in diabetic-induced heart failure is diverse. DM leads also to cardiac electrical remodeling reacting on various targets. Dipeptidyl peptidase-4 (DPP-4) inhibitors reduce glucagon and blood glucose levels by raising levels of the endogenous hormones glucagon-like-peptide 1 and glucose-dependent insulinotropic peptide and constitute a safe and effective glucose lowering treatment option in patients with type 2 DM. Despite DPP-4 inhibitors' efficacy regarding glycemic control, their effect on cardiovascular outcomes (myocardial infarction, stroke, hospitalization for heart failure, hospitalization for unstable angina, hospitalization for coronary revascularization, and cardiovascular death) in diabetic patients has been neutral. The potential correlation between atrial flutter and DPP-4 inhibitors administration needs further investigation.
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Affiliation(s)
- Angeliki Bourazana
- Department of Cardiology, University Hospital of Larissa, Larissa 41110, Greece
| | - Grigorios Giamouzis
- Department of Cardiology, University Hospital of Larissa, Larissa 41110, Greece
| | - John Skoularigis
- Department of Cardiology, University Hospital of Larissa, Larissa 41110, Greece
| | | | - Andrew Xanthopoulos
- Department of Cardiology, University Hospital of Larissa, Larissa 41110, Greece.
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Rafaqat S, Rafaqat S, Rafaqat S. Pathophysiological aspects of insulin resistance in Atrial Fibrillation: novel therapeutic approaches. INTERNATIONAL JOURNAL OF ARRHYTHMIA 2022. [DOI: 10.1186/s42444-021-00057-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Abstract
Background
Insulin resistance is associated with metabolic disorders including diabetes, obesity, hypertension, and inflammation which are the risk factors for Atrial Fibrillation. Many studies have reported that type 2 diabetes and AF are related and also their prevalence is increasing globally. Moreover, insulin resistance begins the type 2 diabetes.
Main body
This review explains the pathophysiological aspects of insulin resistance in AF patients and discusses the drugs that are used to manage insulin resistance including Biguanides (metformin), thiazolidinediones (TZDs) [Pioglitazone, rosiglitazone], Sodium-glucose cotransporter 2 (SGLT2) inhibitors, Concentrated Insulin Products, Dipeptidyl peptidase-4 (DPP-4) Inhibitors, Glucagon-like peptide 1 (GLP-1) receptor Agonists, Pramlintide, Sulfonylureas, Meglitinides, α-Glucosidase Inhibitors, Colesevelam, Bromocriptine. This review will highlight a few major drugs that played a significant role in AF patients. For this purpose, many databases were used for reviewing the literature and keywords are used such as Insulin Resistance, Pathophysiology, Atrial Fibrillation, and Drugs.
Conclusion
This review article concludes that insulin resistance is related to AF. It also provides an outlook on the recent pathophysiological aspects of insulin resistance in AF; however, more studies are needed to clarify the management of insulin resistance in AF patients to prevent the development of type 2 diabetes.
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Abstract
ABSTRACT Cardiovascular disease (CVD) remains the leading cause of death worldwide. Therefore, exploring the mechanism of CVDs and critical regulatory factors is of great significance for promoting heart repair, reversing cardiac remodeling, and reducing adverse cardiovascular events. Recently, significant progress has been made in understanding the function of protein kinases and their interactions with other regulatory proteins in myocardial biology. Protein kinases are positioned as critical regulators at the intersection of multiple signals and coordinate nearly every aspect of myocardial responses, regulating contractility, metabolism, transcription, and cellular death. Equally, reconstructing the disrupted protein kinases regulatory network will help reverse pathological progress and stimulate cardiac repair. This review summarizes recent researches concerning the function of protein kinases in CVDs, discusses their promising clinical applications, and explores potential targets for future treatments.
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25
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Remme CA. Sudden cardiac death in diabetes and obesity: mechanisms and therapeutic strategies. Can J Cardiol 2022; 38:418-426. [PMID: 35017043 DOI: 10.1016/j.cjca.2022.01.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 01/05/2022] [Accepted: 01/05/2022] [Indexed: 02/07/2023] Open
Abstract
Ventricular arrhythmias and sudden cardiac death (SCD) occur most frequently in the setting of coronary artery disease, cardiomyopathy and heart failure, but are also increasingly observed in individuals suffering from diabetes mellitus and obesity. The incidence of these metabolic disorders is rising in Western countries, but adequate prevention and treatment of arrhythmias and SCD in affected patients is limited due to our incomplete knowledge of the underlying disease mechanisms. Here, an overview is presented of the prevalence of electrophysiological disturbances, ventricular arrhythmias and SCD in the clinical setting of diabetes and obesity. Experimental studies are reviewed, which have identified disease pathways and associated modulatory factors, in addition to pro-arrhythmic mechanisms. Key processes are discussed, including mitochondrial dysfunction, oxidative stress, cardiac structural derangements, abnormal cardiac conduction, ion channel dysfunction, prolonged repolarization and dysregulation of intracellular sodium and calcium homeostasis. In addition, the recently identified pro-arrhythmic effects of dysregulated branched chain amino acid metabolism, a common feature in patients with metabolic disorders, are addressed. Finally, current management options are discussed, in addition to the potential development of novel preventive and therapeutic strategies based on recent insight gained from translational studies.
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Affiliation(s)
- Carol Ann Remme
- Department of Experimental Cardiology, Amsterdam UMC, location AMC, Amsterdam, The Netherlands.
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Al Kury LT, Chacar S, Alefishat E, Khraibi AA, Nader M. Structural and Electrical Remodeling of the Sinoatrial Node in Diabetes: New Dimensions and Perspectives. Front Endocrinol (Lausanne) 2022; 13:946313. [PMID: 35872997 PMCID: PMC9302195 DOI: 10.3389/fendo.2022.946313] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 06/14/2022] [Indexed: 11/14/2022] Open
Abstract
The sinoatrial node (SAN) is composed of highly specialized cells that mandate the spontaneous beating of the heart through self-generation of an action potential (AP). Despite this automaticity, the SAN is under the modulation of the autonomic nervous system (ANS). In diabetes mellitus (DM), heart rate variability (HRV) manifests as a hallmark of diabetic cardiomyopathy. This is paralleled by an impaired regulation of the ANS, and by a pathological remodeling of the pacemaker structure and function. The direct effect of diabetes on the molecular signatures underscoring this pathology remains ill-defined. The recent focus on the electrical currents of the SAN in diabetes revealed a repressed firing rate of the AP and an elongation of its tracing, along with conduction abnormalities and contractile failure. These changes are blamed on the decreased expression of ion transporters and cell-cell communication ports at the SAN (i.e., HCN4, calcium and potassium channels, connexins 40, 45, and 46) which further promotes arrhythmias. Molecular analysis crystallized the RGS4 (regulator of potassium currents), mitochondrial thioredoxin-2 (reactive oxygen species; ROS scavenger), and the calcium-dependent calmodulin kinase II (CaMKII) as metabolic culprits of relaying the pathological remodeling of the SAN cells (SANCs) structure and function. A special attention is given to the oxidation of CaMKII and the generation of ROS that induce cell damage and apoptosis of diabetic SANCs. Consequently, the diabetic SAN contains a reduced number of cells with significant infiltration of fibrotic tissues that further delay the conduction of the AP between the SANCs. Failure of a genuine generation of AP and conduction of their derivative waves to the neighboring atrial myocardium may also occur as a result of the anti-diabetic regiment (both acute and/or chronic treatments). All together, these changes pose a challenge in the field of cardiology and call for further investigations to understand the etiology of the structural/functional remodeling of the SANCs in diabetes. Such an understanding may lead to more adequate therapies that can optimize glycemic control and improve health-related outcomes in patients with diabetes.
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Affiliation(s)
- Lina T. Al Kury
- Department of Health Sciences, College of Natural and Health Sciences, Zayed University, Abu Dhabi, United Arab Emirates
- *Correspondence: Lina T. Al Kury, ; Moni Nader,
| | - Stephanie Chacar
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Eman Alefishat
- Department of Pharmacology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Department of Biopharmaceutics and Clinical Pharmacy, School of Pharmacy, The University of Jordan, Amman, Jordan
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Ali A. Khraibi
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
| | - Moni Nader
- Department of Physiology and Immunology, College of Medicine and Health Sciences, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- Center for Biotechnology, Khalifa University of Science and Technology, Abu Dhabi, United Arab Emirates
- *Correspondence: Lina T. Al Kury, ; Moni Nader,
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