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Vrints C, Andreotti F, Koskinas KC, Rossello X, Adamo M, Ainslie J, Banning AP, Budaj A, Buechel RR, Chiariello GA, Chieffo A, Christodorescu RM, Deaton C, Doenst T, Jones HW, Kunadian V, Mehilli J, Milojevic M, Piek JJ, Pugliese F, Rubboli A, Semb AG, Senior R, Ten Berg JM, Van Belle E, Van Craenenbroeck EM, Vidal-Perez R, Winther S. 2024 ESC Guidelines for the management of chronic coronary syndromes. Eur Heart J 2024:ehae177. [PMID: 39210710 DOI: 10.1093/eurheartj/ehae177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/04/2024] Open
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Kakzanov Y, Sevilya Z, Goldman A, Cipok M, Hershkovitz V, Bryk G, Lev EI. The Effect of SGLT2 Inhibitor Therapy on Endothelial Progenitor Cell Function in Patients With Heart Failure. J Cardiovasc Pharmacol 2024; 84:220-226. [PMID: 38922584 DOI: 10.1097/fjc.0000000000001581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 04/03/2024] [Indexed: 06/27/2024]
Abstract
ABSTRACT Sodium-glucose cotransporter-2 (SGLT-2) inhibitors have been shown to reduce the risk of cardiovascular mortality and hospitalizations in patients with heart failure (HF) with preserved or reduced ejection fraction (HFpEF or HFrEF). The mechanism for this benefit is not clear. Endothelial progenitor cells (EPCs) are bone marrow-derived cells able to differentiate into functional endothelial cells and participate in endothelial repair. The aim of this study was to evaluate the effect of SGLT-2 inhibitors on the level and function of EPCs in patients with HF. We enrolled 20 patients with symptomatic HF, 12 with HFrEF and 8 with HFpEF (aged 73.3 ± 10.2 years, 95% men). Blood samples were drawn at 2 time points: baseline and ≥3 months after initiation of SGLT-2 inhibitor therapy. Circulating EPC levels were evaluated by expression of vascular endothelial growth factor receptor-2 (VEGFR-2), CD34, and CD133 by flow cytometry. EPC colony forming units (CFUs) were quantified after 7 days in culture. The proportion of cells that coexpressed VEGFR-2 and CD34 or VEGFR-2 and CD133 was higher following 3 months of SGLT-2 inhibitors [0.26% (interquartile range, IQR 0.10-0.33) versus 0.55% (IQR 0.28-0.91), P = 0.002; 0.12% (IQR 0.07-0.15) versus 0.24% (IQR 0.15-0.39), P = 0.001, respectively]. EPC CFUs were also increased following SGLT-2 inhibitor treatment [23 (IQR 3.7-37.8) versus 79.4 (IQR 25.1-110.25) colonies/10 6 cells, P = 0.0039]. In patients with symptomatic HF, both HFpEF and HFrEF, treatment with SGLT-2 inhibitors is associated with an increase in the level and function of circulating EPCs. This augmentation in EPCs may be a contributing mechanism to the clinical benefit of SGLT-2 inhibitors in patients with HF.
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Affiliation(s)
- Yana Kakzanov
- Cardiology Department, Assuta Ashdod Medical Center, Ashdod, Israel
- Faculty of Health Sciences, Ben-Gurion University, Beer-Sheva, Israel
| | - Ziv Sevilya
- Cardiology Department, Assuta Ashdod Medical Center, Ashdod, Israel
- Faculty of Health Sciences, Ben-Gurion University, Beer-Sheva, Israel
| | - Alexander Goldman
- Cardiology Department, Assuta Ashdod Medical Center, Ashdod, Israel
- Faculty of Health Sciences, Ben-Gurion University, Beer-Sheva, Israel
| | - Michal Cipok
- Hematology Laboratory, Assuta Ashdod Medical Center, Ashdod, Israel; and
| | - Vera Hershkovitz
- Hematology Laboratory, Assuta Ashdod Medical Center, Ashdod, Israel; and
| | - Gabriel Bryk
- Biochemistry Laboratory, Assuta Ashdod Medical Center, Ashdod, Israel
| | - Eli I Lev
- Cardiology Department, Assuta Ashdod Medical Center, Ashdod, Israel
- Faculty of Health Sciences, Ben-Gurion University, Beer-Sheva, Israel
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Giardinelli S, Meliota G, Mentino D, D’Amato G, Faienza MF. Molecular Basis of Cardiomyopathies in Type 2 Diabetes. Int J Mol Sci 2024; 25:8280. [PMID: 39125850 PMCID: PMC11313011 DOI: 10.3390/ijms25158280] [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: 06/22/2024] [Revised: 07/23/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
Diabetic cardiomyopathy (DbCM) is a common complication in individuals with type 2 diabetes mellitus (T2DM), and its exact pathogenesis is still debated. It was hypothesized that chronic hyperglycemia and insulin resistance activate critical cellular pathways that are responsible for numerous functional and anatomical perturbations in the heart. Interstitial inflammation, oxidative stress, myocardial apoptosis, mitochondria dysfunction, defective cardiac metabolism, cardiac remodeling, hypertrophy and fibrosis with consequent impaired contractility are the most common mechanisms implicated. Epigenetic changes also have an emerging role in the regulation of these crucial pathways. The aim of this review was to highlight the increasing knowledge on the molecular mechanisms of DbCM and the new therapies targeting specific pathways.
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Affiliation(s)
- Silvia Giardinelli
- Department of Medical Sciences, Pediatrics, University of Ferrara, 44121 Ferrara, Italy;
| | - Giovanni Meliota
- Department of Pediatric Cardiology, Giovanni XXIII Pediatric Hospital, 70126 Bari, Italy;
| | - Donatella Mentino
- Pediatric Unit, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, 70124 Bari, Italy;
| | - Gabriele D’Amato
- Neonatal Intensive Care Unit, Di Venere Hospital, 70012 Bari, Italy;
| | - Maria Felicia Faienza
- Pediatric Unit, Department of Precision and Regenerative Medicine and Ionian Area, University of Bari “Aldo Moro”, 70124 Bari, Italy;
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Schmidt K, Schmidt A, Groß S, Just A, Pfanne A, Fuchs M, Jordan M, Mohr E, Pich A, Fiedler J, Thum T. SGLT2 inhibitors attenuate endothelial to mesenchymal transition and cardiac fibroblast activation. Sci Rep 2024; 14:16459. [PMID: 39013942 PMCID: PMC11252266 DOI: 10.1038/s41598-024-65410-9] [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: 02/09/2024] [Accepted: 06/19/2024] [Indexed: 07/18/2024] Open
Abstract
Beneficial effects of sodium glucose co-transporter 2 inhibitors (SGLT2is) in cardiovascular diseases have been extensively reported leading to the inclusion of these drugs in the treatment guidelines for heart failure. However, molecular actions especially on non-myocyte cells remain uncertain. We observed dose-dependent inhibitory effects of two SGLT2is, dapagliflozin (DAPA) and empagliflozin (EMPA), on inflammatory signaling in human umbilical vein endothelial cells. Proteomic analyses and subsequent enrichment analyses discovered profound effects of these SGLT2is on proteins involved in mitochondrial respiration and actin cytoskeleton. Validation in functional oxygen consumption measurements as well as tube formation and migration assays revealed strong impacts of DAPA. Considering that most influenced parameters played central roles in endothelial to mesenchymal transition (EndMT), we performed in vitro EndMT assays and identified substantial reduction of mesenchymal and fibrosis marker expression as well as changes in cellular morphology upon treatment with SGLT2is. In line, human cardiac fibroblasts exposed to DAPA showed less proliferation, reduced ATP production, and decelerated migration capacity while less extensive impacts were observed upon EMPA. Mechanistically, sodium proton exchanger 1 (NHE1) as well as sodium-myoinositol cotransporter (SMIT) and sodium-multivitamin cotransporter (SMVT) could be identified as relevant targets of SGLT2is in non-myocyte cardiovascular cells as validated by individual siRNA-knockdown experiments. In summary, we found comprehensive beneficial effects of SGLT2is on human endothelial cells and cardiac fibroblasts. The results of this study therefore support a distinct effect of selected SGLT2i on non-myocyte cardiovascular cells and grant further insights into potential molecular mode of action of these drugs.
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Affiliation(s)
- Kevin Schmidt
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Hannover, Germany
- Fraunhofer Cluster of Excellence Immune-Mediated Diseases (CIMD), Hannover, Germany
| | - Arne Schmidt
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Hannover, Germany
- Fraunhofer Cluster of Excellence Immune-Mediated Diseases (CIMD), Hannover, Germany
| | - Sonja Groß
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Annette Just
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Angelika Pfanne
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Maximilian Fuchs
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Hannover, Germany
- Fraunhofer Cluster of Excellence Immune-Mediated Diseases (CIMD), Hannover, Germany
| | - Maria Jordan
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Hannover, Germany
- Fraunhofer Cluster of Excellence Immune-Mediated Diseases (CIMD), Hannover, Germany
| | - Elisa Mohr
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany
| | - Andreas Pich
- Institute of Toxicology and Core Unit Proteomics, Hannover Medical School, Hannover, Germany
| | - Jan Fiedler
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany.
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Hannover, Germany.
- Fraunhofer Cluster of Excellence Immune-Mediated Diseases (CIMD), Hannover, Germany.
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Hannover, Germany.
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Cheng X, Huang P, Liu H, Bi X, Gao Y, Lu R, Gao Y, Liu Y, Deng Y. Improvements of myocardial strain and work in diabetes patients with normal ejection fraction after empagliflozin treatment. J Diabetes Investig 2024; 15:851-860. [PMID: 38534028 PMCID: PMC11215679 DOI: 10.1111/jdi.14199] [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: 11/16/2023] [Revised: 02/21/2024] [Accepted: 03/16/2024] [Indexed: 03/28/2024] Open
Abstract
AIMS/INTRODUCTION To assess the effect of empagliflozin treatment on left ventricular (LV), right ventricular (RV) and left atrial (LA) functions in diabetes patients with normal ejection fraction. MATERIALS AND METHODS The study included a total of 128 diabetes patients with multiple cardiovascular risk factors who were subjected to a 6-month follow up from the initiation of empagliflozin treatment. Before and after treatment with empagliflozin, LV, RV and LA strain, and noninvasive myocardial work parameters were evaluated by speckle tracking echocardiography. RESULTS In 128 diabetes patients (mean age 56 ± 8 years, 85 men) with multiple cardiovascular risk factors, myocardial strain and work parameters were impaired, despite the absence of significant clinical symptoms of heart failure. After 6-month treatment with empagliflozin, the absolute value of LV strain in all directions increased, represented by LV global longitudinal strain (-18.0 ± 1.7% to -19.2 ± 1.7% [mean ± SD]). The same trend in LV global work efficiency (93 [91-94] % to 94 [93-95] % [median (IQR)]), RV free-wall longitudinal strain (-24.0 ± 2.7% to -25.0 ± 2.8%), LA reservoir (31 ± 5% to 34 ± 5%) and conduit strain (-14 ± 4% to -16 ± 4%) was also observed. LV mass index (106.9 ± 16.8-103.6 ± 16.4 g/m2) and LV global wasted work (143 [111-185] mmHg% to 108 [88-141] mmHg%) decreased after treatment (P < 0.05 for all). LV volume and LA volume index remained unchanged after treatment. In the multivariable analysis, the change in LA reservoir strain (β = 0.050, P = 0.035) and baseline global longitudinal strain (β = -0.488, P < 0.001) were independent predictors of improvement in LV global longitudinal strain. CONCLUSIONS This study suggests that 6-month treatment with empagliflozin improved LV, RV and LA functions in diabetes patients with normal ejection fraction.
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Affiliation(s)
- Xueqing Cheng
- Department of Medical Ultrasound, Tongji Medical College, Tongji HospitalHuazhong University of Science and TechnologyWuhanChina
| | - Peina Huang
- Department of Medical Ultrasound, Tongji Medical College, Tongji HospitalHuazhong University of Science and TechnologyWuhanChina
| | - Hongyun Liu
- Department of Medical Ultrasound, Tongji Medical College, Tongji HospitalHuazhong University of Science and TechnologyWuhanChina
| | - Xiaojun Bi
- Department of Medical Ultrasound, Tongji Medical College, Tongji HospitalHuazhong University of Science and TechnologyWuhanChina
| | - Yiping Gao
- Department of Medical Ultrasound, Tongji Medical College, Tongji HospitalHuazhong University of Science and TechnologyWuhanChina
| | - Ruirui Lu
- Department of Medical Ultrasound, Tongji Medical College, Tongji HospitalHuazhong University of Science and TechnologyWuhanChina
| | - Yipeng Gao
- Department of Medical Ultrasound, Tongji Medical College, Tongji HospitalHuazhong University of Science and TechnologyWuhanChina
| | - Yani Liu
- Department of Medical Ultrasound, Tongji Medical College, Tongji HospitalHuazhong University of Science and TechnologyWuhanChina
| | - Youbin Deng
- Department of Medical Ultrasound, Tongji Medical College, Tongji HospitalHuazhong University of Science and TechnologyWuhanChina
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Mani S, Balasubramanian A, Veluswami K, Rao S, Aggarwal S. Sodium-Glucose Cotransporter-2 (SGLT2) Inhibitors and Cardiovascular Outcomes: A Review of Literature. Cureus 2024; 16:e63796. [PMID: 39099905 PMCID: PMC11297731 DOI: 10.7759/cureus.63796] [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] [Accepted: 07/03/2024] [Indexed: 08/06/2024] Open
Abstract
Coronary arterial diseases are a major contributor to disease and death worldwide and are most often compounded by several other underlying medical conditions. A key concern is type 2 diabetes mellitus (T2DM). Despite progress in medical advancements, these life-threatening illnesses are still underdiagnosed and undermanaged. A relatively newer class of anti-diabetic drugs, the sodium-glucose cotransporter-2 inhibitors (SGL2-Is), also termed gliflozins, have shown promising results in reducing cardiovascular risk, regardless of diabetic status. These drugs have on-target (promoting renal glycosuria and diuresis by acting on the SGLT-2 channels in the proximal convoluted tubule) and off-target effects contributing to the reported cardiovascular benefit. Some emerging theories about its impact on myocardial energetics, calcium balance, and renal physiology exist. In this review article, we explored three major cardiovascular outcome trials: the Dapagliflozin Effect on Cardiovascular Events-Thrombolysis in Myocardial Infarction 58 (DECLARE-TIMI 58) trial, the CANagliflozin cardioVascular Assessment Study (CANVAS) program, and the Empagliflozin Cardiovascular Outcome Event Trial in Type 2 Diabetes Mellitus Patients-Removing Excess Glucose (EMPA-REG OUTCOME) trial to evaluate the cardiovascular effects of SGLT2-Is.
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Affiliation(s)
- Sweatha Mani
- Internal Medicine, K.A.P. Viswanatham Government Medical College, Tiruchirappalli, IND
| | | | | | - Sudipta Rao
- Internal Medicine, JSS Medical College, Mysore, IND
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Bell DSH, Jerkins T. The potential for improved outcomes in the prevention and therapy of diabetic kidney disease through 'stacking' of drugs from different classes. Diabetes Obes Metab 2024; 26:2046-2053. [PMID: 38516874 DOI: 10.1111/dom.15559] [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: 01/17/2024] [Revised: 02/20/2024] [Accepted: 03/02/2024] [Indexed: 03/23/2024]
Abstract
Aggressive therapy of diabetic kidney disease (DKD) can not only slow the progression of DKD to renal failure but, if utilized at an early enough stage of DKD, can also stabilize and/or reverse the decline in renal function. The currently recognized standard of therapy for DKD is blockade of the renin-angiotensin system with angiotensin-converting enzyme (ACE) inhibitors or angiotensin II receptor blockers (ARBs). However, unless utilized at a very early stage, monotherapy with these drugs in DKD will only prevent or slow the progression of DKD and will neither stabilize nor reverse the progression of DKD to renal decompensation. Recently, the addition of a sodium-glucose cotransporter-2 inhibitor and/or a mineralocorticoid receptor blocker to ACE inhibitors or ARBs has been clearly shown to further decelerate the decline in renal function. The use of glucagon-like peptide-1 (GLP-1) agonists shown promise in decelerating the progression of DKD. Other drugs that may aid in the deceleration the progression of DKD are dipeptidyl peptidase-4 inhibitors, pentoxifylline, statins, and vasodilating beta blockers. Therefore, aggressive therapy with combinations of these drugs (stacking) should improve the preservation of renal function in DKD.
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Affiliation(s)
- David S H Bell
- University of Alabama Medical School and Southside Endocrinology, Irondale, Alabama, USA
| | - Terri Jerkins
- Midstate Endocrine Associates, Lipscomb University, Nashville, Tennessee, USA
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Shah A, Sabharwal N, Day J. Heart failure with preserved ejection fraction: implications for anaesthesia. BJA Educ 2024; 24:155-163. [PMID: 38646450 PMCID: PMC11026937 DOI: 10.1016/j.bjae.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2024] [Indexed: 04/23/2024] Open
Affiliation(s)
- A. Shah
- Nuffield Division of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - N. Sabharwal
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - J.R. Day
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
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Jojima T, Sakurai S, Kishi H, Kato K, Iijima T, Tomaru T, Usui I, Aso Y. Empagliflozin increases plasma levels of citrulline, histidine, and α-aminobutyric acid in patients with type 2 diabetes: effects of a sodium-glucose co-transporter 2 inhibitor on the plasma amino acid profile. Expert Opin Pharmacother 2024; 25:937-944. [PMID: 38809611 DOI: 10.1080/14656566.2024.2362265] [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: 04/10/2024] [Accepted: 05/28/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND To investigate effects of empagliflozin on plasma amino acids in people with type 2 diabetes. RESEARCH DESIGN AND METHODS In a randomized, active-controlled, open-label trial, 58 patients with type 2 diabetes were randomized to 10 mg/day empagliflozin (n = 29) or standard treatment without empagliflozin (control group, n = 29) and treated for 12 weeks. We obtained blood samples at baseline and 12 weeks and assessed the plasma amino acid profile by liquid chromatography-mass spectrometry liquid chromatography. We also calculated the Fischer ratio (the ratio of branched-chain to aromatic amino acids). RESULTS In the empagliflozin group but not in the control group, plasma levels of citrulline, histidine, and α-aminobutyric acid (AABA), the Fischer ratio, and serum high-molecular weight (HMW) adiponectin increased significantly (p = 0.0099, 0.0277, 0.0318, 0.0135, and 0.0304, respectively) and plasma plasminogen activator inhibitor-1 (PAI-1) decreased significantly (p = 0.0014). In the empagliflozin group, the change in plasma citrulline was positively correlated with the changes in HMW adiponectin (r = 0.488, p = 0.0084) and the Fischer ratio (r = 0.393, p = 0.0353) but negatively correlated with the change in ferritin (r= -0.533,p = 0.0051); the change in plasma histidine was negatively correlated with the change in PAI-1 (r= -0.398, p = 0.0397) and urinary albumin creatinine ratio (r= -0.478, p = 0.0088). CONCLUSION Empagliflozin significantly increases plasma citrulline, histidine, and AABA in people with type 2 diabetes. CLINICAL TRIAL REGISTRATION www.umin.ac.jp identifier is UMIN000025418.
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Affiliation(s)
- Teruo Jojima
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Japan
| | - Shintaro Sakurai
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Japan
| | - Haruka Kishi
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Japan
| | - Kananko Kato
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Japan
| | - Toshie Iijima
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Japan
| | - Takuya Tomaru
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Japan
| | - Isao Usui
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Japan
| | - Yoshimasa Aso
- Department of Endocrinology and Metabolism, Dokkyo Medical University, Mibu, Japan
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Pherwani S, Connolly D, Sun Q, Karwi QG, Carr M, Ho KL, Wagg CS, Zhang L, Levasseur J, Silver H, Dyck JRB, Lopaschuk GD. Ketones provide an extra source of fuel for the failing heart without impairing glucose oxidation. Metabolism 2024; 154:155818. [PMID: 38369056 DOI: 10.1016/j.metabol.2024.155818] [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: 11/27/2023] [Revised: 02/13/2024] [Accepted: 02/15/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND Cardiac glucose oxidation is decreased in heart failure with reduced ejection fraction (HFrEF), contributing to a decrease in myocardial ATP production. In contrast, circulating ketones and cardiac ketone oxidation are increased in HFrEF. Since ketones compete with glucose as a fuel source, we aimed to determine whether increasing ketone concentration both chronically with the SGLT2 inhibitor, dapagliflozin, or acutely in the perfusate has detrimental effects on cardiac glucose oxidation in HFrEF, and what effect this has on cardiac ATP production. METHODS 8-week-old male C57BL6/N mice underwent sham or transverse aortic constriction (TAC) surgery to induce HFrEF over 3 weeks, after which TAC mice were randomized to treatment with either vehicle or the SGLT2 inhibitor, dapagliflozin (DAPA), for 4 weeks (raises blood ketones). Cardiac function was assessed by echocardiography. Cardiac energy metabolism was measured in isolated working hearts perfused with 5 mM glucose, 0.8 mM palmitate, and either 0.2 mM or 0.6 mM β-hydroxybutyrate (βOHB). RESULTS TAC hearts had significantly decreased %EF compared to sham hearts, with no effect of DAPA. Glucose oxidation was significantly decreased in TAC hearts compared to sham hearts and did not decrease further in TAC hearts treated with high βOHB or in TAC DAPA hearts, despite βOHB oxidation rates increasing in both TAC vehicle and TAC DAPA hearts at high βOHB concentrations. Rather, increasing βOHB supply to the heart selectively decreased fatty acid oxidation rates. DAPA significantly increased ATP production at both βOHB concentrations by increasing the contribution of glucose oxidation to ATP production. CONCLUSION Therefore, increasing ketone concentration increases energy supply and ATP production in HFrEF without further impairing glucose oxidation.
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Affiliation(s)
- Simran Pherwani
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - David Connolly
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - Qiuyu Sun
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - Qutuba G Karwi
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada; Division of BioMedical Sciences, Faculty of Medicine, Memorial University of Newfoundland, Newfoundland and Labrador, St. John's A1B 3V6, Canada
| | - Michael Carr
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - Kim L Ho
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - Cory S Wagg
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - Liyan Zhang
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - Jody Levasseur
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - Heidi Silver
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - Jason R B Dyck
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada
| | - Gary D Lopaschuk
- Cardiovascular Research Centre, University of Alberta, Edmonton, Canada; Department of Pediatrics, University of Alberta, Edmonton, Alberta T6G 2S2, Canada.
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11
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Athinarayanan SJ, Roberts CGP, Vangala C, Shetty GK, McKenzie AL, Weimbs T, Volek JS. The case for a ketogenic diet in the management of kidney disease. BMJ Open Diabetes Res Care 2024; 12:e004101. [PMID: 38677719 PMCID: PMC11057262 DOI: 10.1136/bmjdrc-2024-004101] [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: 02/06/2024] [Accepted: 04/05/2024] [Indexed: 04/29/2024] Open
Abstract
Ketogenic diets have been widely used for weight loss and are increasingly used in the management of type 2 diabetes. Despite evidence that ketones have multiple positive effects on kidney function, common misconceptions about ketogenic diets, such as high protein content and acid load, have prevented their widespread use in individuals with impaired kidney function. Clinical trial evidence focusing on major adverse kidney events is sparse. The aim of this review is to explore the effects of a ketogenic diet, with an emphasis on the pleiotropic actions of ketones, on kidney health. Given the minimal concerns in relation to the potential renoprotective effects of a ketogenic diet, future studies should evaluate the safety and efficacy of ketogenic interventions in kidney disease.
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Affiliation(s)
| | | | | | | | | | - Thomas Weimbs
- Department of Molecular Cellular & Developmental Biology, University of California Santa Barbara, Santa Barbara, California, USA
| | - Jeff S Volek
- Department of Human Sciences, The Ohio State University, Columbus, Ohio, USA
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12
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Marton A, Saffari SE, Rauh M, Sun RN, Nagel AM, Linz P, Lim TT, Takase-Minegishi K, Pajarillaga A, Saw S, Morisawa N, Yam WK, Minegishi S, Totman JJ, Teo S, Teo LLY, Ng CT, Kitada K, Wild J, Kovalik JP, Luft FC, Greasley PJ, Chin CWL, Sim DKL, Titze J. Water Conservation Overrides Osmotic Diuresis During SGLT2 Inhibition in Patients With Heart Failure. J Am Coll Cardiol 2024; 83:1386-1398. [PMID: 38599715 DOI: 10.1016/j.jacc.2024.02.020] [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: 12/06/2023] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 04/12/2024]
Abstract
BACKGROUND Sodium-glucose cotransporter 2 inhibitors are believed to improve cardiac outcomes due to their osmotic diuretic potential. OBJECTIVES The goal of this study was to test the hypothesis that vasopressin-driven urine concentration overrides the osmotic diuretic effect of glucosuria induced by dapagliflozin treatment. METHODS DAPA-Shuttle1 (Hepato-renal Regulation of Water Conservation in Heart Failure Patients With SGLT-2 Inhibitor Treatment) was a single-center, double-blind, randomized, placebo-controlled trial, in which patients with chronic heart failure NYHA functional classes I/II and reduced ejection fraction were randomly assigned to receive dapagliflozin 10 mg daily or placebo (1:1) for 4 weeks. The primary endpoint was change from baseline in urine osmolyte concentration. Secondary endpoints included changes in copeptin levels and solute free water clearance. RESULTS Thirty-three randomized, sodium-glucose cotransporter 2 inhibitor-naïve participants completed the study, 29 of whom (placebo: n = 14; dapagliflozin: n = 15) provided accurate 24-hour urine collections (mean age 59 ± 14 years; left ventricular ejection fraction 31% ± 9%). Dapagliflozin treatment led to an isolated increase in urine glucose excretion by 3.3 mmol/kg/d (95% CI: 2.51-4.04; P < 0.0001) within 48 hours (early) which persisted after 4 weeks (late; 2.7 mmol/kg/d [95% CI: 1.98-3.51]; P < 0.0001). Dapagliflozin treatment increased serum copeptin early (5.5 pmol/L [95% CI: 0.45-10.5]; P < 0.05) and late (7.8 pmol/L [95% CI: 2.77-12.81]; P < 0.01), leading to proportional reductions in free water clearance (early: -9.1 mL/kg/d [95% CI: -14 to -4.12; P < 0.001]; late: -11.0 mL/kg/d [95% CI: -15.94 to -6.07; P < 0.0001]) and elevated urine concentrations (late: 134 mmol/L [95% CI: 39.28-229.12]; P < 0.01). Therefore, urine volume did not significantly increase with dapagliflozin (mean difference early: 2.8 mL/kg/d [95% CI: -1.97 to 7.48; P = 0.25]; mean difference late: 0.9 mL/kg/d [95% CI: -3.83 to 5.62]; P = 0.70). CONCLUSIONS Physiological-adaptive water conservation eliminated the expected osmotic diuretic potential of dapagliflozin and thereby prevented a glucose-driven increase in urine volume of approximately 10 mL/kg/d · 75 kg = 750 mL/kg/d. (Hepato-renal Regulation of Water Conservation in Heart Failure Patients With SGLT-2 Inhibitor Treatment [DAPA-Shuttle1]; NCT04080518).
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Affiliation(s)
- Adriana Marton
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore; Department of Internal Medicine 4-Nephrology and Hypertension, Paracelsus Private Medical School Nuremberg, Nuremberg, Germany.
| | | | - Manfred Rauh
- Research Laboratory, Division of Paediatrics, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - Ruo-Ning Sun
- Clinical Imaging Research Centre, Centre for Translational Medicine, Singapore
| | - Armin M Nagel
- Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany; German Cancer Research Center (DKFZ), Division of Medical Physics in Radiology, Heidelberg, Germany
| | - Peter Linz
- Institute of Radiology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Tzy Tiing Lim
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore
| | | | | | - Sharon Saw
- Department of Laboratory Medicine, National University Hospital, Singapore
| | - Norihiko Morisawa
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore
| | - Wan Keat Yam
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore
| | - Shintaro Minegishi
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore
| | - John J Totman
- Clinical Imaging Research Centre, Centre for Translational Medicine, Singapore; Radiography and Medical Imaging Department, Fatima College of Health Sciences, Abu Dhabi, United Arab Emirates
| | - Serena Teo
- Clinical Imaging Research Centre, Centre for Translational Medicine, Singapore
| | - Louis L Y Teo
- Department of Cardiology, National Heart Centre Singapore, Singapore
| | - Choon Ta Ng
- Department of Cardiology, National Heart Centre Singapore, Singapore
| | - Kento Kitada
- Department of Pharmacology, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Johannes Wild
- Center for Cardiology, Cardiology I, Johannes Gutenberg-University, Mainz, Germany
| | - Jean-Paul Kovalik
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore
| | - Friedrich C Luft
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine, Medical Faculty of the Charité, Berlin, Germany
| | - Peter J Greasley
- Early Discovery and Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Calvin W L Chin
- Department of Cardiology, National Heart Centre Singapore, Singapore
| | - David K L Sim
- Department of Cardiology, National Heart Centre Singapore, Singapore
| | - Jens Titze
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore; III. Department of Medicine and Hamburg Center for Kidney Health (HCKH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Division of Nephrology, Duke University Medical Center, Durham, North Carolina, USA.
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13
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Bjornstad P, Choi YJ, Platnick C, Gross S, Narongkiatikhun P, Melena I, Remmers L, Baca M, Schutte G, Dobbs T, Vigers T, Pyle L, Driscoll L, Tommerdahl K, Kendrick J, Looker HC, Dart A, Cherney D, van Raalte DH, Srivastava A, Li L, Prasad P, Saulnier P, Nelson RG, Johnson RJ, Nadeau KJ. Insulin Secretion, Sensitivity, and Kidney Function in Young Individuals With Type 2 Diabetes. Diabetes Care 2024; 47:409-417. [PMID: 38153805 PMCID: PMC10909687 DOI: 10.2337/dc23-1818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/03/2023] [Indexed: 12/30/2023]
Abstract
OBJECTIVE β-Cell dysfunction and insulin resistance magnify the risk of kidney injury in type 2 diabetes. The relationship between these factors and intraglomerular hemodynamics and kidney oxygen availability in youth with type 2 diabetes remains incompletely explored. RESEARCH DESIGN AND METHODS Fifty youth with type 2 diabetes (mean age ± SD 16 ± 2 years; diabetes duration 2.3 ± 1.8 years; 60% female; median HbA1c 6.4% [25th, 75th percentiles 5.9, 7.6%]; BMI 36.4 ± 7.4 kg/m2; urine albumin-to-creatinine ratio [UACR] 10.3 [5.9, 58.0] mg/g) 21 control participants with obesity (OCs; age 16 ± 2 years; 29% female; BMI 37.6 ± 7.4 kg/m2), and 20 control participants in the normal weight category (NWCs; age 17 ± 3 years; 70% female; BMI 22.5 ± 3.6 kg/m2) underwent iohexol and p-aminohippurate clearance to assess glomerular filtration rate (GFR) and renal plasma flow, kidney MRI for oxygenation, hyperglycemic clamp for insulin secretion (acute C-peptide response to glucose [ACPRg]) and disposition index (DI; ×103 mg/kg lean/min), and DXA for body composition. RESULTS Youth with type 2 diabetes exhibited lower DI (0.6 [0.0, 1.6] vs. 3.8 [2.4, 4.5] × 103 mg/kg lean/min; P < 0.0001) and ACPRg (0.6 [0.3, 1.4] vs. 5.3 [4.3, 6.9] nmol/L; P < 0.001) and higher UACR (10.3 [5.9, 58.0] vs. 5.3 [3.4, 14.3] mg/g; P = 0.003) and intraglomerular pressure (77.8 ± 11.5 vs. 64.8 ± 5.0 mmHg; P < 0.001) compared with OCs. Youth with type 2 diabetes and OCs had higher GFR and kidney oxygen availability (relative hyperoxia) than NWCs. DI was associated inversely with intraglomerular pressure and kidney hyperoxia. CONCLUSIONS Youth with type 2 diabetes demonstrated severe β-cell dysfunction that was associated with intraglomerular hypertension and kidney hyperoxia. Similar but attenuated findings were found in OCs.
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Affiliation(s)
- Petter Bjornstad
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado School of Medicine, Aurora, CO
| | - Ye Ji Choi
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
- Department of Biostatistics and Informatics, University of Colorado School of Medicine, Aurora, CO
| | - Carson Platnick
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Susan Gross
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Phoom Narongkiatikhun
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Isabella Melena
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Lauryn Remmers
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Madison Baca
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Grant Schutte
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Tyler Dobbs
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Tim Vigers
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
- Department of Biostatistics and Informatics, University of Colorado School of Medicine, Aurora, CO
| | - Laura Pyle
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
- Department of Biostatistics and Informatics, University of Colorado School of Medicine, Aurora, CO
| | - Lynette Driscoll
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Kalie Tommerdahl
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Jessica Kendrick
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado School of Medicine, Aurora, CO
| | - Helen C. Looker
- Chronic Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, AZ
| | - Allison Dart
- Division of Nephrology, Department of Pediatrics, University of Manitoba, Winnipeg, Manitoba, Canada
- Children’s Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada
| | - David Cherney
- Division of Nephrology, Department of Medicine, University of Toronto School of Medicine, Toronto, Ontario, Canada
| | - Daniel H. van Raalte
- Diabetes Center, Department of Internal Medicine, Vrije Universiteit University Medical Center, Amsterdam University Medical Centers, Amsterdam, the Netherlands
| | - Anand Srivastava
- Division of Nephrology, Department of Medicine, University of Illinois Chicago, Chicago, IL
| | - Luping Li
- Department of Radiology, NorthShore University HealthSystem, Evanston, IL
| | - Pottumarthi Prasad
- Department of Radiology, NorthShore University HealthSystem, Evanston, IL
| | - Pierre Saulnier
- INSERM Centre d’Investigation Clinique 1402, CHU Poitiers, University of Poitiers, Poitiers, France
| | - Robert G. Nelson
- Chronic Kidney Disease Section, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, AZ
| | - Richard J. Johnson
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Colorado School of Medicine, Aurora, CO
| | - Kristen J. Nadeau
- Section of Endocrinology, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
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Kugathasan L, Sridhar VS, Lovblom LE, Matta S, Saliba A, Debnath S, AlAkwaa FM, Nair V, Bjornstad P, Kretzler M, Perkins BA, Sharma K, Cherney DZI. Interactive Effects of Empagliflozin and Hyperglycemia on Urinary Amino Acids in Individuals With Type 1 Diabetes. Diabetes 2024; 73:401-411. [PMID: 38015810 DOI: 10.2337/db23-0694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 11/19/2023] [Indexed: 11/30/2023]
Abstract
Optimizing energy use in the kidney is critical for normal kidney function. Here, we investigate the effect of hyperglycemia and sodium-glucose cotransporter 2 (SGLT2) inhibition on urinary amino acid excretion in individuals with type 1 diabetes (T1D). The open-label ATIRMA trial assessed the impact of 8 weeks of 25 mg empagliflozin orally once per day in 40 normotensive normoalbuminuric young adults with T1D. A consecutive 2-day assessment of clamped euglycemia and hyperglycemia was evaluated at baseline and posttreatment visits. Principal component analysis was performed on urinary amino acids grouped into representative metabolic pathways using MetaboAnalyst. At baseline, acute hyperglycemia was associated with changes in 25 of the 33 urinary amino acids or their metabolites. The most significant amino acid metabolites affected by acute hyperglycemia were 3-hydroxykynurenine, serotonin, glycyl-histidine, and nicotinic acid. The changes in amino acid metabolites were reflected by the induction of four biosynthetic pathways: aminoacyl-tRNA; valine, leucine, and isoleucine; arginine; and phenylalanine, tyrosine, and tryptophan. In acute hyperglycemia, empagliflozin significantly attenuated the increases in aminoacyl-tRNA biosynthesis and valine, leucine, and isoleucine biosynthesis. Our findings using amino acid metabolomics indicate that hyperglycemia stimulates biosynthetic pathways in T1D. SGLT2 inhibition may attenuate the increase in biosynthetic pathways to optimize kidney energy metabolism. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Luxcia Kugathasan
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- Cardiovascular Sciences Collaborative Specialization, University of Toronto, Toronto, Ontario, Canada
| | - Vikas S Sridhar
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
- Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Leif Erik Lovblom
- Biostatistics Department, University Health Network, Toronto, Ontario, Canada
| | - Shane Matta
- Center for Precision Medicine, University of Texas Health San Antonio, San Antonio, TX
- Division of Nephrology, Department of Medicine, University of Texas Health San Antonio, San Antonio, TX
| | - Afaf Saliba
- Center for Precision Medicine, University of Texas Health San Antonio, San Antonio, TX
- Division of Nephrology, Department of Medicine, University of Texas Health San Antonio, San Antonio, TX
| | - Subrata Debnath
- Center for Precision Medicine, University of Texas Health San Antonio, San Antonio, TX
- Division of Nephrology, Department of Medicine, University of Texas Health San Antonio, San Antonio, TX
| | - Fadhl M AlAkwaa
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Viji Nair
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
| | - Petter Bjornstad
- Division of Nephrology, Department of Medicine, University of Colorado, Aurora, CO
- Section of Endocrinology, Department of Pediatrics, University of Colorado, Aurora, CO
| | - Matthias Kretzler
- Division of Nephrology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI
| | - Bruce A Perkins
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada
- Division of Endocrinology and Metabolism, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Kumar Sharma
- Center for Precision Medicine, University of Texas Health San Antonio, San Antonio, TX
- Division of Nephrology, Department of Medicine, University of Texas Health San Antonio, San Antonio, TX
| | - David Z I Cherney
- Division of Nephrology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
- Department of Physiology, University of Toronto, Toronto, Ontario, Canada
- Cardiovascular Sciences Collaborative Specialization, University of Toronto, Toronto, Ontario, Canada
- Institute of Medical Sciences, University of Toronto, Toronto, Ontario, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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15
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Meng S, Yu Y, Yu S, Zhu S, Shi M, Xiang M, Ma H. Advances in Metabolic Remodeling and Intervention Strategies in Heart Failure. J Cardiovasc Transl Res 2024; 17:36-55. [PMID: 37843752 DOI: 10.1007/s12265-023-10443-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/27/2023] [Indexed: 10/17/2023]
Abstract
The heart is the most energy-demanding organ throughout the whole body. Perturbations or failure in energy metabolism contributes to heart failure (HF), which represents the advanced stage of various heart diseases. The poor prognosis and huge economic burden associated with HF underscore the high unmet need to explore novel therapies targeting metabolic modulators beyond conventional approaches focused on neurohormonal and hemodynamic regulators. Emerging evidence suggests that alterations in metabolic substrate reliance, metabolic pathways, metabolic by-products, and energy production collectively regulate the occurrence and progression of HF. In this review, we provide an overview of cardiac metabolic remodeling, encompassing the utilization of free fatty acids, glucose metabolism, ketone bodies, and branched-chain amino acids both in the physiological condition and heart failure. Most importantly, the latest advances in pharmacological interventions are discussed as a promising therapeutic approach to restore cardiac function, drawing insights from recent basic research, preclinical and clinical studies.
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Affiliation(s)
- Simin Meng
- Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University; State Key Laboratory of Transvascular Implantation Devices; Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, 310009, China
| | - Yi Yu
- Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University; State Key Laboratory of Transvascular Implantation Devices; Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, 310009, China
| | - Shuo Yu
- Department of Anesthesiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, 310009, China
| | - Shiyu Zhu
- Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University; State Key Laboratory of Transvascular Implantation Devices; Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, 310009, China
| | - Mengjia Shi
- Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University; State Key Laboratory of Transvascular Implantation Devices; Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, 310009, China
| | - Meixiang Xiang
- Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University; State Key Laboratory of Transvascular Implantation Devices; Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, 310009, China.
| | - Hong Ma
- Department of Cardiology, The Second Affiliated Hospital, School of Medicine, Zhejiang University; State Key Laboratory of Transvascular Implantation Devices; Cardiovascular Key Laboratory of Zhejiang Province, Hangzhou, Zhejiang, 310009, China.
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16
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Yamahara K, Yasuda-Yamahara M, Kuwagata S, Chin-Kanasaki M, Kume S. Ketone Body Metabolism in Diabetic Kidney Disease. KIDNEY360 2024; 5:320-326. [PMID: 38227425 PMCID: PMC10914200 DOI: 10.34067/kid.0000000000000359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 01/10/2024] [Indexed: 01/17/2024]
Abstract
Ketone bodies have a negative image because of ketoacidosis, one of the acute and serious complications in diabetes. The negative image persists despite the fact that ketone bodies are physiologically produced in the liver and serve as an indispensable energy source in extrahepatic organs, particularly during long-term fasting. However, accumulating experimental evidence suggests that ketone bodies exert various health benefits. Particularly in the field of aging research, there is growing interest in the potential organoprotective effects of ketone bodies. In addition, ketone bodies have a potential role in preventing kidney diseases, including diabetic kidney disease (DKD), a diabetic complication caused by prolonged hyperglycemia that leads to a decline in kidney function. Ketone bodies may help alleviate the renal burden from hyperglycemia by being used as an alternative energy source in patients with diabetes. Furthermore, ketone body production may reduce inflammation and delay the progression of several kidney diseases in addition to DKD. Although there is still insufficient research on the use of ketone bodies as a treatment and their effects, their renoprotective effects are being gradually proven. This review outlines the ketone body-mediated renoprotective effects in DKD and other kidney diseases.
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Affiliation(s)
- Kosuke Yamahara
- Department of Medicine, Shiga University of Medical Science, Otsu, Japan
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17
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Actis Dato V, Lange S, Cho Y. Metabolic Flexibility of the Heart: The Role of Fatty Acid Metabolism in Health, Heart Failure, and Cardiometabolic Diseases. Int J Mol Sci 2024; 25:1211. [PMID: 38279217 PMCID: PMC10816475 DOI: 10.3390/ijms25021211] [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: 12/19/2023] [Revised: 01/16/2024] [Accepted: 01/18/2024] [Indexed: 01/28/2024] Open
Abstract
This comprehensive review explores the critical role of fatty acid (FA) metabolism in cardiac diseases, particularly heart failure (HF), and the implications for therapeutic strategies. The heart's reliance on ATP, primarily sourced from mitochondrial oxidative metabolism, underscores the significance of metabolic flexibility, with fatty acid oxidation (FAO) being a dominant source. In HF, metabolic shifts occur with an altered FA uptake and FAO, impacting mitochondrial function and contributing to disease progression. Conditions like obesity and diabetes also lead to metabolic disturbances, resulting in cardiomyopathy marked by an over-reliance on FAO, mitochondrial dysfunction, and lipotoxicity. Therapeutic approaches targeting FA metabolism in cardiac diseases have evolved, focusing on inhibiting or stimulating FAO to optimize cardiac energetics. Strategies include using CPT1A inhibitors, using PPARα agonists, and enhancing mitochondrial biogenesis and function. However, the effectiveness varies, reflecting the complexity of metabolic remodeling in HF. Hence, treatment strategies should be individualized, considering that cardiac energy metabolism is intricate and tightly regulated. The therapeutic aim is to optimize overall metabolic function, recognizing the pivotal role of FAs and the need for further research to develop effective therapies, with promising new approaches targeting mitochondrial oxidative metabolism and FAO that improve cardiac function.
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Affiliation(s)
- Virginia Actis Dato
- Division of Cardiovascular Medicine, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (V.A.D.); (S.L.)
| | - Stephan Lange
- Division of Cardiovascular Medicine, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (V.A.D.); (S.L.)
- Department of Biomedicine, Aarhus University, DK 8000 Aarhus, Denmark
- Steno Diabetes Center Aarhus, Aarhus University Hospital, DK 8200 Aarhus, Denmark
| | - Yoshitake Cho
- Division of Cardiovascular Medicine, Department of Medicine, University of California San Diego, La Jolla, CA 92093, USA; (V.A.D.); (S.L.)
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18
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Zhang Q, Deng Z, Li T, Chen K, Zeng Z. SGLT2 inhibitor improves the prognosis of patients with coronary heart disease and prevents in-stent restenosis. Front Cardiovasc Med 2024; 10:1280547. [PMID: 38274313 PMCID: PMC10808651 DOI: 10.3389/fcvm.2023.1280547] [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: 08/20/2023] [Accepted: 12/27/2023] [Indexed: 01/27/2024] Open
Abstract
Coronary heart disease is a narrowing or obstruction of the vascular cavity caused by atherosclerosis of the coronary arteries, which leads to myocardial ischemia and hypoxia. At present, percutaneous coronary intervention (PCI) is an effective treatment for coronary atherosclerotic heart disease. Restenosis is the main limiting factor of the long-term success of PCI, and it is also a difficult problem in the field of intervention. Sodium-glucose cotransporter 2 (SGLT2) inhibitor is a new oral glucose-lowering agent used in the treatment of diabetes in recent years. Recent studies have shown that SGLT2 inhibitors can effectively improve the prognosis of patients after PCI and reduce the occurrence of restenosis. This review provides an overview of the clinical studies and mechanisms of SGLT2 inhibitors in the prevention of restenosis, providing a new option for improving the clinical prognosis of patients after PCI.
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Affiliation(s)
| | | | | | | | - Zhihuan Zeng
- Department of Cardiovascular Diseases, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong Province, China
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Savage P, Dixon L, Grieve D, Watson C. SGLT2 Inhibition in Heart Failure: Clues to Cardiac Effects? Cardiol Rev 2024:00045415-990000000-00189. [PMID: 38189526 DOI: 10.1097/crd.0000000000000637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Following the publication of several landmark clinical trials such as dapagliflozin in patients with heart failure and reduced ejection fraction, dapagliflozin evaluation to improve the lives of patients with preserved ejection fraction heart failure, and empagliflozin outcome trial in patients with chronic heart failure with preserved ejection fraction, sodium-glucose cotransport 2 inhibitors have been rapidly incorporated as a guideline-directed therapy in the treatment of heart failure. Moreover, their benefits appear to extend across the spectrum of left ventricular dysfunction which in some respects, can be seen as the holy grail of heart failure pharmacotherapy. Despite its plethora of proven cardioprotective benefits, the mechanisms by which it exerts these effects remain poorly understood, however, it is clear that these extend beyond that of promotion of glycosuria and natriuresis. Several hypotheses have emerged over the years including modification of cardiovascular risk profile via weight reduction, improved glucose homeostasis, blood pressure control, and natriuretic effect; however, these mechanisms do not fully explain the potent effects of the drug demonstrated in large-scale randomized trials. Other mechanisms may be at play, specifically the down-regulation of inflammatory pathways, improved myocardial sodium homeostasis, modulation of profibrotic pathways, and activation of nutrient deprivation signaling pathways promoting autophagic flux. This review seeks to summarize the cardioprotective benefits demonstrated in major clinical trials and provide a succinct review of the current theories of mechanisms of action, based on the most recent evidence derived from both clinical and laboratory data.
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Affiliation(s)
| | - Lana Dixon
- From the Royal Victoria Hospital Cardiology Department
| | - David Grieve
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University, Belfast, Northern Ireland
| | - Chris Watson
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University, Belfast, Northern Ireland
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20
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Lee S, Bae J, Kim SU, Lee M, Lee YH, Kang ES, Cha BS, Lee BW. Intact ketogenesis predicted reduced risk of moderate-severe metabolic-associated fatty liver disease assessed by liver transient elastography in newly diagnosed type 2 diabetes. Front Endocrinol (Lausanne) 2024; 14:1306134. [PMID: 38260169 PMCID: PMC10801714 DOI: 10.3389/fendo.2023.1306134] [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: 10/03/2023] [Accepted: 12/12/2023] [Indexed: 01/24/2024] Open
Abstract
Aim Hepatic ketogenesis is a key metabolic pathway that regulates energy homeostasis. Some related controversies exist regarding the pathogenesis of metabolic-associated fatty liver disease (MAFLD). We aimed to investigate whether intact ketogenic capacity could reduce the risk of MAFLD based on transient electrography (TE) in patients with newly diagnosed type 2 diabetes (T2D). Methods A total of 361 subjects with newly diagnosed T2D were recruited and classified into two groups based on the median serum β-hydroxybutyrate (βHB) level, referred to as the intact and impaired ketogenesis groups. The glucometabolic relevance of ketogenic capacity and associations of the baseline serum β-HB and MAFLD assessed with TE were investigated. Results Compared to the impaired ketogenesis group, the intact ketogenesis group showed better insulin sensitivity, lower serum triglyceride levels, and higher glycated hemoglobin levels. The controlled attenuation parameter (CAP) was lower in the intact ketogenesis group without statistical significance (289.7 ± 52.1 vs. 294.5 ± 43.6; p=0.342) but the prevalence of moderate-severe steatosis defined by CAP ≥260 dB/m was significantly lower in the intact group. Moreover, intact ketogenesis was significantly associated with a lower risk of moderate-severe MAFLD after adjusting for potential confounders (adjusted odds ratio 0.55, 95% confidence interval 0.30-0.98; p=0.044). Conclusion In drug-naïve, newly diagnosed T2D patients, intact ketogenesis predicted a lower risk of moderate-severe MAFLD assessed by TE.
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Affiliation(s)
- Sejeong Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, CHA Gangnam Medical Center, CHA University School of Medicine, Seoul, Republic of Korea
| | - Jaehyun Bae
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Catholic Kwandong University College of Medicine, International St. Mary’s Hospital, Incheon, Republic of Korea
| | - Seung Up Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea
| | - Minyoung Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong-ho Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Eun Seok Kang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Bong-Soo Cha
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byung-Wan Lee
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
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21
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Mansouri MH, Mansouri P, Sadeghi M, Hashemi SM, Khosravi A, Behjati M, Shahabi J, Mansouri A, Zavar R, Amirpour A, Sanei H, Sarrafzadegan N. Antianginal effects of empagliflozin in patients with type 2 diabetes and refractory angina; a randomized, double-blind placebo-controlled trial (EMPT-ANGINA Trial). Clin Cardiol 2024; 47:e24158. [PMID: 37721420 PMCID: PMC10766003 DOI: 10.1002/clc.24158] [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: 06/14/2023] [Revised: 08/19/2023] [Accepted: 09/07/2023] [Indexed: 09/19/2023] Open
Abstract
INTRODUCTION Sodium-glucose cotransporter 2 (SGLT2) inhibitors are emerging antidiabetic agents with various potential cardiovascular benefits. The EMPT-ANGINA trial examined the effect of empagliflozin on the angina burden in those with concurrent type 2 diabetes mellitus (T2DM) and refractory angina (RA). METHOD In this 8-week, double-blind, randomized, placebo-controlled trial, 75 patients with T2DM and RA were randomly assigned to one of two groups: empagliflozin (n = 37) and placebo (n = 38). The primary outcome was an improvement in angina, which was assessed by the Seattle Angina Questionnaire (SAQ). The secondary outcomes of this study included alterations in the SAQ domains and exercise test components. RESULTS The mean age of individuals in the empagliflozin and placebo groups was 67.46 ± 9.4 and 65.47 ± 7.0 years, respectively (p = .304). Patients who received empagliflozin showed a significant improvement in both the primary endpoint, which was the SAQ Summary Score (192.73 ± 20.70 vs. 224 ± 25.36, p < .001) and the secondary endpoints. Exercise test components, including treadmill exercise duration, time till angina, 1 mm ST-segment depression onset, and heart rate (HR) recovery, were all significantly improved in the empagliflozin group. This positive impact was reached with no clinically significant changes in resting and exertion HR or blood pressure. There were no significant side effects in the empagliflozin group (p = .125). CONCLUSION Empagliflozin can be safely added as a metabolic modulator agent to existing antianginal medications in individuals with concurrent T2DM and RA to reduce angina symptoms and enhance exercise capacity with minimal side effects.
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Affiliation(s)
- Mohammad Hadi Mansouri
- Hypertension Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
| | - Pejman Mansouri
- Tehran Heart CenterTehran University of Medical SciencesTehranIran
| | - Masoumeh Sadeghi
- Cardiac Rehabilitation Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
| | | | - Alireza Khosravi
- Hypertension Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
| | - Mohaddeseh Behjati
- Cardiac Rehabilitation Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
| | - Javad Shahabi
- Heart Failure Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
| | - Asieh Mansouri
- Hypertension Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
| | - Reihaneh Zavar
- Isfahan Cardiovascular Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
| | - Afshin Amirpour
- Cardiac Rehabilitation Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
| | - Hamid Sanei
- Isfahan Cardiovascular Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
| | - Nizal Sarrafzadegan
- Isfahan Cardiovascular Research Center, Cardiovascular Research InstituteIsfahan University of Medical SciencesIsfahanIran
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22
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Verma S, Mudaliar S, Greasley PJ. Potential Underlying Mechanisms Explaining the Cardiorenal Benefits of Sodium-Glucose Cotransporter 2 Inhibitors. Adv Ther 2024; 41:92-112. [PMID: 37943443 PMCID: PMC10796581 DOI: 10.1007/s12325-023-02652-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/17/2023] [Indexed: 11/10/2023]
Abstract
There is a bidirectional pathophysiological interaction between the heart and the kidneys, and prolonged physiological stress to the heart and/or the kidneys can cause adverse cardiorenal complications, including but not limited to subclinical cardiomyopathy, heart failure and chronic kidney disease. Whilst more common in individuals with Type 2 diabetes, cardiorenal complications also occur in the absence of diabetes. Sodium-glucose cotransporter 2 inhibitors (SGLT2i) were initially approved to reduce hyperglycaemia in patients with Type 2 diabetes. Recently, these agents have been shown to significantly improve cardiovascular and renal outcomes in patients with and without Type 2 diabetes, demonstrating a robust reduction in hospitalisation for heart failure and reduced risk of progression of chronic kidney disease, thus gaining approval for use in treatment of heart failure and chronic kidney disease. Numerous potential mechanisms have been proposed to explain the cardiorenal effects of SGLT2i. This review provides a simplified summary of key potential cardiac and renal mechanisms underlying the cardiorenal benefits of SGT2i and explains these mechanisms in the clinical context. Key mechanisms related to the clinical effects of SGLT2i on the heart and kidneys explained in this publication include their impact on (1) tissue oxygen delivery, hypoxia and resultant ischaemic injury, (2) vascular health and function, (3) substrate utilisation and metabolic health and (4) cardiac remodelling. Knowing the mechanisms responsible for SGLT2i-imparted cardiorenal benefits in the clinical outcomes will help healthcare practitioners to identify more patients that can benefit from the use of SGLT2i.
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Affiliation(s)
- Subodh Verma
- Division of Cardiac Surgery, Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute of St. Michael's Hospital, Toronto, ON, Canada.
- Department of Surgery, University of Toronto, Toronto, ON, Canada.
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada.
| | - Sunder Mudaliar
- Endocrinology/Diabetes Section, Veterans Affairs Medical Centre, San Diego, CA, USA
- Department of Medicine, University of California, San Diego, CA, USA
| | - Peter J Greasley
- Early Discovery and Development, Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
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23
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Chase D, Eykyn TR, Shattock MJ, Chung YJ. Empagliflozin improves cardiac energetics during ischaemia/reperfusion by directly increasing cardiac ketone utilization. Cardiovasc Res 2023; 119:2672-2680. [PMID: 37819017 PMCID: PMC10730240 DOI: 10.1093/cvr/cvad157] [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] [Revised: 07/07/2023] [Accepted: 07/27/2023] [Indexed: 10/13/2023] Open
Abstract
AIMS Empagliflozin (EMPA), a potent inhibitor of the renal sodium-glucose cotransporter 2 and an effective treatment for Type 2 diabetes, has been shown to have cardioprotective effects, independent of improved glycaemic control. Several non-canonical mechanisms have been proposed to explain these cardiac effects, including increasing circulating ketone supply to the heart. This study aims to test whether EMPA directly alters cardiac ketone metabolism independent of supply. METHODS AND RESULTS The direct effects of EMPA on cardiac function and metabolomics were investigated in Langendorff rat heart perfused with buffer containing 5 mM glucose, 4 mM β-hydroxybutyrate (βHb) and 0.4 mM intralipid, subject to low flow ischaemia/reperfusion. Cardiac energetics were monitored in situ using 31P NMR spectroscopy. Steady-state 13C labelling was performed by switching 12C substrates for 13C1 glucose or 13C4 βHb and 13C incorporation into metabolites determined using 2D 1H-13C HSQC NMR spectroscopy. EMPA treatment improved left ventricular-developed pressure during ischaemia and reperfusion compared to vehicle-treated hearts. In EMPA-treated hearts, total adenosine triphosphate (ATP) and phosphocreatine (PCr) levels, and Gibbs free energy for ATP hydrolysis were significantly higher during ischaemia and reperfusion. EMPA treatment did not alter the incorporation of 13C from glucose into glycolytic products lactate or alanine neither during ischaemia nor reperfusion. In ischaemia, EMPA led to a decrease in 13C1 glucose incorporation and a concurrent increase in 13C4 βHb incorporation into tricarboxylic acid (TCA) cycle intermediates succinate, citrate, and glutamate. During reperfusion, the concentration of metabolites originating from 13C1 glucose was similar to vehicle but those originating from 13C4 βHb remained elevated in EMPA-treated hearts. CONCLUSION Our findings indicate that EMPA causes a switch in metabolism away from glucose oxidation towards increased ketone utilization in the rat heart, thereby improving function and energetics both during ischaemia and recovery during reperfusion. This preference of ketone utilization over glucose was observed under conditions of constant supply of substrate, suggesting that EMPA acts directly by modulating cardiac substrate preference, independent of substrate availability. The mechanisms underlying our findings are currently unknown, warranting further study.
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Affiliation(s)
- Dylan Chase
- British Heart Foundation Centre of Research Excellence, King’s College London, The Rayne Institute, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK
| | - Thomas R Eykyn
- British Heart Foundation Centre of Research Excellence, King’s College London, The Rayne Institute, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK
- School of Biomedical Engineering and Imaging Sciences, King’s College London, London SE1 7EH, UK
| | - Michael J Shattock
- British Heart Foundation Centre of Research Excellence, King’s College London, The Rayne Institute, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK
| | - Yu Jin Chung
- British Heart Foundation Centre of Research Excellence, King’s College London, The Rayne Institute, 4th Floor, Lambeth Wing, St Thomas’ Hospital, London SE1 7EH, UK
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24
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Su S, Ji X, Li T, Teng Y, Wang B, Han X, Zhao M. The changes of cardiac energy metabolism with sodium-glucose transporter 2 inhibitor therapy. Front Cardiovasc Med 2023; 10:1291450. [PMID: 38124893 PMCID: PMC10731052 DOI: 10.3389/fcvm.2023.1291450] [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: 09/09/2023] [Accepted: 11/13/2023] [Indexed: 12/23/2023] Open
Abstract
Background/aims To investigate the specific effects of s odium-glucose transporter 2 inhibitor (SGLT2i) on cardiac energy metabolism. Methods A systematic literature search was conducted in eight databases. The retrieved studies were screened according to the inclusion and exclusion criteria, and relevant information was extracted according to the purpose of the study. Two researchers independently screened the studies, extracted information, and assessed article quality. Results The results of the 34 included studies (including 10 clinical and 24 animal studies) showed that SGLT2i inhibited cardiac glucose uptake and glycolysis, but promoted fatty acid (FA) metabolism in most disease states. SGLT2i upregulated ketone metabolism, improved the structure and functions of myocardial mitochondria, alleviated oxidative stress of cardiomyocytes in all literatures. SGLT2i increased cardiac glucose oxidation in diabetes mellitus (DM) and cardiac FA metabolism in heart failure (HF). However, the regulatory effects of SGLT2i on cardiac FA metabolism in DM and cardiac glucose oxidation in HF varied with disease types, stages, and intervention duration of SGLT2i. Conclusion SGLT2i improved the efficiency of cardiac energy production by regulating FA, glucose and ketone metabolism, improving mitochondria structure and functions, and decreasing oxidative stress of cardiomyocytes under pathological conditions. Thus, SGLT2i is deemed to exert a benign regulatory effect on cardiac metabolic disorders in various diseases. Systematic review registration https://www.crd.york.ac.uk/, PROSPERO (CRD42023484295).
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Affiliation(s)
- Sha Su
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Xiang Ji
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Tong Li
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Yu Teng
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Baofu Wang
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Xiaowan Han
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
- Department of Cardiology, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Mingjing Zhao
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
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25
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Stampouloglou PK, Anastasiou A, Bletsa E, Lygkoni S, Chouzouri F, Xenou M, Katsarou O, Theofilis P, Zisimos K, Tousoulis D, Vavuranakis M, Siasos G, Oikonomou E. Diabetes Mellitus in Acute Coronary Syndrome. Life (Basel) 2023; 13:2226. [PMID: 38004366 PMCID: PMC10671950 DOI: 10.3390/life13112226] [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: 10/14/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023] Open
Abstract
The global prevalence of diabetes mellitus (DM) has led to a pandemic, with significant microvascular and macrovascular complications including coronary artery disease (CAD), which worsen clinical outcomes and cardiovascular prognosis. Patients with both acute coronary syndrome (ACS) and DM have worse prognosis and several pathophysiologic mechanisms have been implicated including, insulin resistance, hyperglycemia, endothelial dysfunction, platelet activation and aggregations as well as plaque characteristics and extent of coronary lesions. Therefore, regarding reperfusion strategies in the more complex anatomies coronary artery bypass surgery may be the preferred therapeutic strategy over percutaneous coronary intervention while both hyperglycemia and hypoglycemia should be avoided with closed monitoring of glycemic status during the acute phase of myocardial infraction. However, the best treatment strategy remains undefined. Non-insulin therapies, due to the low risk of hypoglycemia concurrently with the multifactorial CV protective effects, may be proved to be the best treatment option in the future. Nevertheless, evidence for the beneficial effects of glucagon like peptide-1 receptor agonists, dipeptidyl-peptidase 4 inhibitors and sodium glycose cotransporter 2 inhibitors, despite accumulating, is not robust and future randomized control trials may provide more definitive data.
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Affiliation(s)
- Panagiota K. Stampouloglou
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Artemis Anastasiou
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Evanthia Bletsa
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Stavroula Lygkoni
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Flora Chouzouri
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Maria Xenou
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Ourania Katsarou
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Panagiotis Theofilis
- 1st Department of Cardiology, “Hippokration” General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.T.); (D.T.)
| | - Konstantinos Zisimos
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Dimitris Tousoulis
- 1st Department of Cardiology, “Hippokration” General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.T.); (D.T.)
| | - Manolis Vavuranakis
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Gerasimos Siasos
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
| | - Evangelos Oikonomou
- 3rd Department of Cardiology, Thoracic Diseases General Hospital “Sotiria”, National and Kapodistrian University of Athens, 11527 Athens, Greece; (P.K.S.); (A.A.); (E.B.); (S.L.); (F.C.); (M.X.); (K.Z.); (M.V.); (G.S.)
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Lv J, Guo L, Wang R, Chen J. Efficacy and Safety of Sodium-Glucose Cotransporter-2 Inhibitors in Nondiabetic Patients with Chronic Kidney Disease: A Review of Recent Evidence. KIDNEY DISEASES (BASEL, SWITZERLAND) 2023; 9:326-341. [PMID: 37901712 PMCID: PMC10601939 DOI: 10.1159/000530395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 03/20/2023] [Indexed: 10/31/2023]
Abstract
Background Sodium-glucose cotransporter-2 inhibitors (SGLT2i) were initially developed as glucose-lowering agents in patients with type-2 diabetes. However, available data from clinical trials and meta-analyses suggest that SGLT2i have pleiotropic benefits in reducing mortality and delaying the progression of chronic kidney disease (CKD) in both diabetic and nondiabetic patients. Thus, we herein review the current evidence regarding the efficacy and safety of SGLT2i in patients with nondiabetic CKD and appraise the recently reported clinical trials that might facilitate the management of CKD in routine clinical practice. Summary The benefits of SGLT2i on nondiabetic CKD are multifactorial and are mediated by a combination of mechanisms. The landmark DAPA-CKD trial revealed that dapagliflozin administered with renin-angiotensin system blockade drugs reduced the risk of a sustained decline (at least 50%) in the estimated glomerular filtration rate, end-stage kidney disease, or death from cardiorenal causes. The recent EMPA-KIDNEY trial showed that empagliflozin therapy led to a lower risk of progression of kidney disease or death from cardiovascular causes. These benefits were consistent in patients with and without diabetes. Moreover, a meta-analysis of DAPA-HF and EMPEROR-Reduced trials confirmed reductions in the combined risk of cardiovascular death or worsening heart failure including composite renal endpoint. Key Messages Considering the robust data available from DAPA-CKD, EMPA-KIDNEY, and other trials such as EMPEROR-Preserved, DIAMOND that included nondiabetic patients, it may be necessary to update current guidelines to include SGLT2i as a first-line therapy for CKD and reevaluate current CKD therapeutic approaches.
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Affiliation(s)
- Junhao Lv
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- National Key Clinical Department of Kidney Diseases, Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Luying Guo
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- National Key Clinical Department of Kidney Diseases, Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Rending Wang
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- National Key Clinical Department of Kidney Diseases, Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
| | - Jianghua Chen
- Kidney Disease Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Key Laboratory of Kidney Disease Prevention and Control Technology, Hangzhou, China
- National Key Clinical Department of Kidney Diseases, Institute of Nephrology, Zhejiang University, Hangzhou, China
- Zhejiang Clinical Research Center of Kidney and Urinary System Disease, Hangzhou, China
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27
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Berg-Hansen K, Christensen KH, Gopalasingam N, Nielsen R, Eiskjær H, Møller N, Birkelund T, Christensen S, Wiggers H. Beneficial Effects of Ketone Ester in Patients With Cardiogenic Shock: A Randomized, Controlled, Double-Blind Trial. JACC. HEART FAILURE 2023; 11:1337-1347. [PMID: 37452805 DOI: 10.1016/j.jchf.2023.05.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/16/2023] [Accepted: 05/26/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Cardiogenic shock (CS) is a life-threatening condition with sparse treatment options. The ketone body 3-hydroxybutyrate has favorable hemodynamic effects in patients with stable chronic heart failure. Yet, the hemodynamic effects of exogenous ketone ester (KE) in patients with CS remain unknown. OBJECTIVES The authors aimed to assess the hemodynamic effects of single-dose enteral treatment with KE in patients with CS. METHODS In a double-blind, crossover study, 12 patients with CS were randomized to an enteral bolus of KE and isocaloric, isovolumic placebo containing maltodextrin. Patients were assessed with pulmonary artery catheterization, arterial blood samples, echocardiography, and near-infrared spectroscopy for 3 hours following each intervention separated by a 3-hour washout period. RESULTS KE increased circulating 3-hydroxybutyrate (2.9 ± 0.3 mmol/L vs 0.2 ± 0.3 mmol/L, P < 0.001) and was associated with augmented cardiac output (area under the curve of relative change: 61 ± 22 L vs 1 ± 18 L, P = 0.044). Also, KE increased cardiac power output (0.07 W [95% CI: 0.01-0.14]; P = 0.037), mixed venous saturation (3 percentage points [95% CI: 1-5 percentage points]; P = 0.010), and forearm perfusion (3 percentage points [95% CI: 0-6 percentage points]; P = 0.026). Right (P = 0.048) and left (P = 0.017) ventricular filling pressures were reduced whereas heart rate and mean arterial and pulmonary arterial pressures remained similar. Left ventricular ejection fraction improved by 4 percentage points (95% CI: 2-6 percentage points; P = 0.005). Glucose levels decreased by 2.6 mmol/L (95% CI: -5.2 to 0.0; P = 0.047) whereas insulin levels remained unaltered. CONCLUSIONS Treatment with KE improved cardiac output, biventricular function, tissue oxygenation, and glycemic control in patients with CS (Treatment With the Ketone Body 3-hydroxybutyrate in Patients With Cardiogenic Shock [KETO-SHOCK1]; NCT04642768).
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Affiliation(s)
- Kristoffer Berg-Hansen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark.
| | - Kristian Hylleberg Christensen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Nigopan Gopalasingam
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Roni Nielsen
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Hans Eiskjær
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Niels Møller
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark; Department of Endocrinology and Metabolism, Aarhus University Hospital, Aarhus, Denmark
| | - Thomas Birkelund
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Steffen Christensen
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark; Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Henrik Wiggers
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
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Moady G, Ben Avraham B, Aviv S, Itzhaki Ben Zadok O, Atar S, Abu Akel M, Ben Gal T. The safety of sodium-glucose co-transporter 2 inhibitors in patients with left ventricular assist device - a single center experience. J Cardiovasc Med (Hagerstown) 2023; 24:765-770. [PMID: 37577871 DOI: 10.2459/jcm.0000000000001531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
AIMS Sodium-glucose co-transporter 2 (SGLT2) inhibitors are used increasingly for patients with heart failure or chronic kidney disease to improve cardiac and renal outcomes. The use of these medications in patients with left ventricular assist devices (LVAD) is still limited and lacks evidence regarding the safety profile. In this study, we aimed to report our experience in treating 20 patients, supported by LVAD, with SGLT2 inhibitors. METHODS We studied the safety profile of SGLT2 inhibitors (dapagliflozin and empagliflozin) in 20 patients (mean age 64.7 ± 12.2 years, 75% male) supported by LVAD as destination therapy. All patients have diabetes mellitus and were prescribed SGLT2 inhibitors for glycemic control. RESULTS SGLT2 inhibitors were well tolerated with no major adverse events. Few suction events were reported in three patients without the need for pump speed adjustment. There was no change in mean arterial pressure (71.1 ± 5.6 vs. 70.1 ± 4.8 mmHg, P = 0.063). Modest decline in renal function was observed in six patients within the first weeks after drug initiation. There were no events of diabetic ketoacidosis or limb amputation. CONCLUSION SGLT2 inhibitors are safe in patients with LVAD and may potentially improve cardiovascular and renal outcomes in this special population.
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Affiliation(s)
- Gassan Moady
- Department of Cardiology, Galilee Medical Center, Nahariya
- Azrieli Faculty of Medicine, Bar Ilan University, Safed
| | - Binyamin Ben Avraham
- Heart Failure Unit, Cardiology Department, Rabin Medical Center
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shaul Aviv
- Heart Failure Unit, Cardiology Department, Rabin Medical Center
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Osnat Itzhaki Ben Zadok
- Heart Failure Unit, Cardiology Department, Rabin Medical Center
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Shaul Atar
- Department of Cardiology, Galilee Medical Center, Nahariya
- Azrieli Faculty of Medicine, Bar Ilan University, Safed
| | | | - Tuvia Ben Gal
- Heart Failure Unit, Cardiology Department, Rabin Medical Center
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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Prosperi S, D’Amato A, Severino P, Myftari V, Monosilio S, Marchiori L, Zagordi LM, Filomena D, Di Pietro G, Birtolo LI, Badagliacca R, Mancone M, Maestrini V, Vizza CD. Sizing SGLT2 Inhibitors Up: From a Molecular to a Morpho-Functional Point of View. Int J Mol Sci 2023; 24:13848. [PMID: 37762152 PMCID: PMC10530908 DOI: 10.3390/ijms241813848] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
Sodium-glucose cotransporter 2 inhibitors (SGLT2i), or gliflozins, have recently been shown to reduce cardiovascular death and hospitalization in patients with heart failure, representing a revolutionary therapeutic tool. The purpose of this review is to explore their multifaceted mechanisms of actions, beyond their known glucose reduction power. The cardioprotective effects of gliflozins seem to be linked to the maintenance of cellular homeostasis and to an action on the main metabolic pathways. They improve the oxygen supply for cardiomyocytes with a considerable impact on both functional and morphological myocardial aspects. Moreover, multiple molecular actions of SGLT2i are being discovered, such as the reduction of both inflammation, oxidative stress and cellular apoptosis, all responsible for myocardial damage. Various studies showed controversial results concerning the role of SGLT2i in reverse cardiac remodeling and the lowering of natriuretic peptides, suggesting that their overall effect has yet to be fully understood. In addition to this, advanced imaging studies evaluating the effect on all four cardiac chambers are lacking. Further studies will be needed to better understand the real impact of their administration, their use in daily practice and how they can contribute to benefits in terms of reverse cardiac remodeling.
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Affiliation(s)
| | - Andrea D’Amato
- Correspondence: ; Tel.: +39-06-49979021; Fax: +39-06-49979060
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Chen X, Hocher CF, Shen L, Krämer BK, Hocher B. Reno- and cardioprotective molecular mechanisms of SGLT2 inhibitors beyond glycemic control: from bedside to bench. Am J Physiol Cell Physiol 2023; 325:C661-C681. [PMID: 37519230 DOI: 10.1152/ajpcell.00177.2023] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 08/01/2023]
Abstract
Large placebo-controlled clinical trials have shown that sodium-glucose cotransporter-2 inhibitors (SGLT2i) delay the deterioration of renal function and reduce cardiovascular events in a glucose-independent manner, thereby ultimately reducing mortality in patients with chronic kidney disease (CKD) and/or heart failure. These existing clinical data stimulated preclinical studies aiming to understand the observed clinical effects. In animal models, it was shown that the beneficial effect of SGLT2i on the tubuloglomerular feedback (TGF) improves glomerular pressure and reduces tubular workload by improving renal hemodynamics, which appears to be dependent on salt intake. High salt intake might blunt the SGLT2i effects on the TGF. Beyond the salt-dependent effects of SGLT2i on renal hemodynamics, SGLT2i inhibited several key aspects of macrophage-mediated renal inflammation and fibrosis, including inhibiting the differentiation of monocytes to macrophages, promoting the polarization of macrophages from a proinflammatory M1 phenotype to an anti-inflammatory M2 phenotype, and suppressing the activation of inflammasomes and major proinflammatory factors. As macrophages are also important cells mediating atherosclerosis and myocardial remodeling after injury, the inhibitory effects of SGLT2i on macrophage differentiation and inflammatory responses may also play a role in stabilizing atherosclerotic plaques and ameliorating myocardial inflammation and fibrosis. Recent studies suggest that SGLT2i may also act directly on the Na+/H+ exchanger and Late-INa in cardiomyocytes thus reducing Na+ and Ca2+ overload-mediated myocardial damage. In addition, the renal-cardioprotective mechanisms of SGLT2i include systemic effects on the sympathetic nervous system, blood volume, salt excretion, and energy metabolism.
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Affiliation(s)
- Xin Chen
- Department of Nephrology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Carl-Friedrich Hocher
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
- Klinik für Innere Medizin, Bundeswehrkrankenhaus Berlin, Berlin, Germany
| | - Linghong Shen
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bernhard K Krämer
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Berthold Hocher
- Fifth Department of Medicine (Nephrology/Endocrinology/Rheumatology/Pneumology), University Medical Centre Mannheim, University of Heidelberg, Heidelberg, Germany
- Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China
- Institute of Reproductive and Stem Cell Engineering, NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Science, Central South University, Changsha, China
- IMD Institut für Medizinische Diagnostik Berlin-Potsdam GbR, Berlin, Germany
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Renaud D, Scholl-Bürgi S, Karall D, Michel M. Comparative Metabolomics in Single Ventricle Patients after Fontan Palliation: A Strong Case for a Targeted Metabolic Therapy. Metabolites 2023; 13:932. [PMID: 37623876 PMCID: PMC10456471 DOI: 10.3390/metabo13080932] [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: 07/03/2023] [Revised: 07/28/2023] [Accepted: 08/03/2023] [Indexed: 08/26/2023] Open
Abstract
Most studies on single ventricle (SV) circulation take a physiological or anatomical approach. Although there is a tight coupling between cardiac contractility and metabolism, the metabolic perspective on this patient population is very recent. Early findings point to major metabolic disturbances, with both impaired glucose and fatty acid oxidation in the cardiomyocytes. Additionally, Fontan patients have systemic metabolic derangements such as abnormal glucose metabolism and hypocholesterolemia. Our literature review compares the metabolism of patients with a SV circulation after Fontan palliation with that of patients with a healthy biventricular (BV) heart, or different subtypes of a failing BV heart, by Pubmed review of the literature on cardiac metabolism, Fontan failure, heart failure (HF), ketosis, metabolism published in English from 1939 to 2023. Early evidence demonstrates that SV circulation is not only a hemodynamic burden requiring staged palliation, but also a metabolic issue with alterations similar to what is known for HF in a BV circulation. Alterations of fatty acid and glucose oxidation were found, resulting in metabolic instability and impaired energy production. As reported for patients with BV HF, stimulating ketone oxidation may be an effective treatment strategy for HF in these patients. Few but promising clinical trials have been conducted thus far to evaluate therapeutic ketosis with HF using a variety of instruments, including ketogenic diet, ketone esters, and sodium-glucose co-transporter-2 (SGLT2) inhibitors. An initial trial on a small cohort demonstrated favorable outcomes for Fontan patients treated with SGLT2 inhibitors. Therapeutic ketosis is worth considering in the treatment of Fontan patients, as ketones positively affect not only the myocardial energy metabolism, but also the global Fontan physiopathology. Induced ketosis seems promising as a concerted therapeutic strategy.
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Affiliation(s)
- David Renaud
- Fundamental and Biomedical Sciences, Paris-Cité University, 75006 Paris, France
- Health Sciences Faculty, Universidad Europea Miguel de Cervantes, 47012 Valladolid, Spain
- Fundacja Recover, 05-124 Skrzeszew, Poland
| | - Sabine Scholl-Bürgi
- Department of Child and Adolescent Health, Division of Pediatrics I—Inherited Metabolic Disorders, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Daniela Karall
- Department of Child and Adolescent Health, Division of Pediatrics I—Inherited Metabolic Disorders, Medical University of Innsbruck, 6020 Innsbruck, Austria
| | - Miriam Michel
- Department of Child and Adolescent Health, Division of Pediatrics III—Cardiology, Pulmonology, Allergology and Cystic Fibrosis, Medical University of Innsbruck, 6020 Innsbruck, Austria
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Lyu YS, Oh S, Kim JH, Kim SY, Jeong MH. Comparison of SGLT2 inhibitors with DPP-4 inhibitors combined with metformin in patients with acute myocardial infarction and diabetes mellitus. Cardiovasc Diabetol 2023; 22:185. [PMID: 37481509 PMCID: PMC10362625 DOI: 10.1186/s12933-023-01914-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 07/03/2023] [Indexed: 07/24/2023] Open
Abstract
BACKGROUND Although sodium-glucose cotransporter 2 inhibitors (SGLT2i) have demonstrated cardiovascular benefits in patients with type 2 diabetes mellitus, real-world evidence regarding their benefits to diabetic patients with acute myocardial infarction (AMI) is insufficient. This study evaluated cardiovascular outcomes by comparing SGLT2i with dipeptidyl peptidase-4 inhibitors (DPP-4i) in combination with metformin in diabetic patients with AMI. METHODS This study involved 779 diabetic participants with AMI from a Korean nationwide multicenter observational cohort, who were divided into two groups: (1) metformin plus SGLT2i group (SGLT2i group, n = 186) and (2) metformin plus DPP-4i (DPP-4i group, n = 593). The primary endpoint was one year of major adverse composite events (MACEs), a composite outcome of all-cause mortality, non-fatal myocardial infarction, any revascularization, cerebrovascular accident, and stent thrombosis. To balance the baseline differences, inverse probability of treatment weighting (IPTW) was performed. RESULTS After IPTW, the rate of MACEs in the SGLT2i group was not significantly lower than that in the DPP-4i group (hazard ratio [HR], 0.99; 95% confidence interval [Cl], 0.46 to 2.14, p = 0.983). In the unadjusted and adjusted analyses, all items for clinical outcomes were comparable between the two groups. In our exploratory analysis, the left ventricular ejection fraction showed a significant improvement in the SGLT2i group than in the DPP-4i group before achieving statistical balancing (6.10 ± 8.30 versus 2.95 ± 10.34, p = 0.007) and after IPTW adjustment (6.91 ± 8.91 versus 3.13 ± 10.41, p = 0.027). CONCLUSIONS Our findings demonstrated that SGLT2i did not influence the rate of MACEs compared with DPP-4i in combination with metformin in diabetic patients with AMI but did improve left ventricular ejection fraction. TRIAL REGISTRATION Not applicable (retrospectively registered).
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Affiliation(s)
- Young Sang Lyu
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - Seok Oh
- Departmnent of Cardiology, Chonnam National University Hospital, Gwangju, Republic of Korea
| | - Jin Hwa Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - Sang Yong Kim
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chosun University Hospital, Gwangju, Republic of Korea
| | - Myung Ho Jeong
- Departmnent of Cardiology, Chonnam National University Hospital, Gwangju, Republic of Korea.
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Republic of Korea.
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Nakatani D, Dohi T, Hikoso S, Tanaka A, Nanasato M, Shimizu W, Node K, Sakata Y. Relationship Between Canagliflozin, Sodium Glucose Cotransporter 2 Inhibitor, and Hematopoietic Effects in Patients With Diabetes and Mild Heart Failure: Results From the CANDLE Trial. J Cardiovasc Pharmacol 2023; 82:61-68. [PMID: 37070931 DOI: 10.1097/fjc.0000000000001430] [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] [Received: 01/19/2023] [Accepted: 04/02/2023] [Indexed: 04/19/2023]
Abstract
ABSTRACT There were few clinical studies on the relationship between sodium glucose cotransporter 2 inhibitors (SGLT2i) and hematopoiesis in patients with diabetes (DM) and heart failure (HF) with consideration of systemic volume status. A total of 226 DM patients with HF enrolled in the CANDLE trial, a multicenter, prospective, randomized open-label blinded-endpoint trial, were studied. Estimated plasma volume status (ePVS) was calculated based on a weight- and hematocrit-based formula. At baseline, there was no significant difference in hematocrit and hemoglobin between the canagliflozin (n = 109) and glimepiride (n = 116) groups. Hematocrit and hemoglobin at 24 weeks, changes in hematocrit and hemoglobin difference (24 weeks-baseline), and hematocrit and hemoglobin ratio (24 weeks/baseline) were significantly higher in the canagliflozin than in the glimepiride group, respectively. There was no significant difference in ePVS at baseline and 24 weeks between the 2 groups. After adjustment for baseline parameters, canagliflozin correlated positively with changes in hematocrit and hemoglobin difference, and hematocrit and hemoglobin ratio by multivariate linear regression analyses. The difference in hematocrit and hemoglobin between the 2 groups became statistically significant at 3 and 6 months after randomization. There was no heterogeneity between canagliflozin and the characteristics of the patients for hematocrit and hemoglobin difference and ratio. A correlation of the changes in hematocrit and hemoglobin with cardiac and renal improvement was not observed. In conclusion, canagliflozin was associated with an increased hematocrit and hemoglobin in patients with diabetes and HF regardless of their volume status and characteristics.
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Affiliation(s)
- Daisaku Nakatani
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tomoharu Dohi
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Shungo Hikoso
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | - Atsushi Tanaka
- Department of Cardiovascular Medicine, Saga University, Saga Japan
| | - Mamoru Nanasato
- Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan; and
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan
| | - Koichi Node
- Department of Cardiovascular Medicine, Saga University, Saga Japan
| | - Yasushi Sakata
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Japan
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Valencia-Morales ND, Rodríguez-Cubillo B, Loayza-López RK, Moreno de la Higuera MÁ, Sánchez-Fructuoso AI. Novel Drugs for the Management of Diabetes Kidney Transplant Patients: A Literature Review. Life (Basel) 2023; 13:1265. [PMID: 37374048 DOI: 10.3390/life13061265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/18/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
The management of diabetes and renal failure is changing thanks to the appearance of new drugs such as glucagon-like peptide 1 receptor agonists (GLP1-RA) and sodium-glucose cotransporter type 2 inhibitors (SGLT2i) that have benefits in terms of survival and cardiorenal protection. Based on the potential mechanisms of GLP1-RA, kidney transplant recipients (KTRs) could benefit from their effects. However, high-quality studies are needed to demonstrate these benefits, in the transplant population, especially those related to cardiovascular benefits and renal protection. Studies with SGLT2i performed in KTRs are much less potent than in the general population and therefore no benefits in terms of patient or graft survival have been clearly demonstrated in this population to date. Additionally, the most frequently observed side effects could be potentially harmful to this population profile, including severe or recurrent urinary tract infections and impaired kidney function. However, benefits demonstrated in KTRs are in line with a known potential effects in cardiovascular and renal protection, which may be essential for the outcome of transplant recipients. Better studies are still needed to confirm the benefits of these new oral antidiabetics in the renal transplant population. Understanding the characteristics of these drugs may be critical for KTRs to be able to benefit from their effects without being damaged. This review discusses the results of the most important published studies on KTRs with GLP1-RA and SGLT2i as well as the potential beneficial effects of these drugs. Based on these results, approximate suggestions for the management of diabetes in KTRs were developed.
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Lopaschuk GD, Dyck JRB. Ketones and the cardiovascular system. NATURE CARDIOVASCULAR RESEARCH 2023; 2:425-437. [PMID: 39196044 DOI: 10.1038/s44161-023-00259-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 02/28/2023] [Indexed: 08/29/2024]
Abstract
Ketone bodies, the main one being β-hydroxybutyrate, have emerged as important regulators of the cardiovascular system. In healthy individuals, as well as in individuals with heart failure or post-myocardial infarction, ketones provide a supplemental energy source for both the heart and the vasculature. In the failing heart, this additional energy may contribute to improved cardiac performance, whereas increasing ketone oxidation in vascular smooth muscle and endothelial cells enhances cell proliferation and prevents blood vessel rarefication. Ketones also have important actions in signaling pathways, posttranslational modification pathways and gene transcription; many of which modify cell proliferation, inflammation, oxidative stress, endothelial function and cardiac remodeling. Attempts to therapeutically increase ketone delivery to the cardiovascular system are numerous and have shown mixed results in terms of effectiveness. Here we review the bioenergetic and signaling effects of ketones on the cardiovascular system, and we discuss how ketones can potentially be used to treat cardiovascular diseases.
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Affiliation(s)
- Gary D Lopaschuk
- Cardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada.
| | - Jason R B Dyck
- Cardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Alberta, Canada
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Aktas G, Atak Tel BM, Tel R, Balci B. Treatment of type 2 diabetes patients with heart conditions. Expert Rev Endocrinol Metab 2023; 18:255-265. [PMID: 37078758 DOI: 10.1080/17446651.2023.2204941] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/17/2023] [Indexed: 04/21/2023]
Abstract
INTRODUCTION While type 2 diabetes mellitus (T2DM) increases the risk of cardiac complications, diabetes treatment choices may increase or decrease the rates of cardiac events. In the present review, we comprehensively discussed the treatment options of diabetic subjects with cardiac conditions. AREAS COVERED Current evidence related to diabetes treatment in cardiac situations has been reviewed. Clinical trials and meta-analyses on cardiac safety of anti-diabetic medicines are discussed. Treatment choices with proven benefits and those at least without associated increased cardiac risk were drawn from clinical trials; meta-analyses and cardiac safety studies in the recent medical literature were the basis of the suggestions in the present review. EXPERT OPINION We can suggest that hypoglycemia and extreme hyperglycemia should be avoided in acute ischemic heart conditions. Certain diabetic treatment options, especially sodium-glucose cotransporter-2 (SGLT2) inhibitors, can reduce overall cardiovascular mortality and hospitalization due to heart failure. Therefore, we suggest that physicians should choose SGLT2 inhibitors as the first-line treatment option in diabetic patients with heart failure or those who have a high risk of heart failure development. T2DM increases the risk of atrial fibrillation (AF), and metformin and pioglitazone seem to reduce the risk of AF in diabetic population.
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Affiliation(s)
- Gulali Aktas
- Department of Internal Medicine, Abant Izzet Baysal University Hospital, Bolu, Turkey
| | | | - Ramiz Tel
- Izzet Baysal State Hospital, Department of Emergency, Bolu, Turkey
| | - Buse Balci
- Department of Internal Medicine, Abant Izzet Baysal University Hospital, Bolu, Turkey
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Severino P, D'Amato A, Prosperi S, Costi B, Angotti D, Birtolo LI, Chimenti C, Lavalle C, Maestrini V, Mancone M, Fedele F. Sodium-glucose cotransporter 2 inhibitors and heart failure: the best timing for the right patient. Heart Fail Rev 2023; 28:709-721. [PMID: 34654997 PMCID: PMC10140096 DOI: 10.1007/s10741-021-10170-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/07/2021] [Indexed: 12/17/2022]
Abstract
Sodium-glucose cotransporter 2 inhibitors (SGLT2i), initially born as anti-diabetic drugs, have shown many beneficial effects on the cardiovascular system, in particular against heart failure (HF). HF is a complex and multifaceted disease that requires a comprehensive approach. It should not be considered as a simplistic cardiac disease, but a systemic disease that leads to multisystemic organ failure and death. Exploiting their pleiotropic effects, SGLT2i are a very valid tool for HF treatment. Beyond the indication to reduce HF hospitalization and death risk, in patients with diabetes mellitus at high cardiovascular risk or with established cardiovascular event, SGLT2i administration reported beneficial effects regarding the wide spectrum of HF manifestations and stages, independently by diabetes mellitus presence. Recent evidence focuses on HF rehospitalization, cardiac and all-cause death reduction, as well as symptoms and quality of life improvement, in patients with chronic HF or with a recent HF decompensation episode. Given the recent finding about the SGLT2i usefulness in HF patients, further studies are needed to define the best administration timing to maximize the SGLT2i-derived beneficial effects.
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Affiliation(s)
- Paolo Severino
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy.
| | - Andrea D'Amato
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
| | - Silvia Prosperi
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
| | - Bettina Costi
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
| | - Danilo Angotti
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
| | - Lucia Ilaria Birtolo
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
| | - Cristina Chimenti
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
| | - Carlo Lavalle
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
| | - Viviana Maestrini
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
| | - Massimo Mancone
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
| | - Francesco Fedele
- Department of Clinical, Internal, Anesthesiology and Cardiovascular Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Rome, Italy
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Kearney J, Gnudi L. The Pillars for Renal Disease Treatment in Patients with Type 2 Diabetes. Pharmaceutics 2023; 15:pharmaceutics15051343. [PMID: 37242585 DOI: 10.3390/pharmaceutics15051343] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023] Open
Abstract
The diabetes epidemic and the increasing number of patients with diabetic chronic vascular complications poses a significant challenge to health care providers. Diabetic kidney disease is a serious diabetes-mediated chronic vascular complication and represents a significant burden for both patients and society in general. Diabetic kidney disease not only represents the major cause of end stage renal disease but is also paralleled by an increase in cardiovascular morbidity and mortality. Any interventions to delay the development and progression of diabetic kidney disease are important to reduce the associated cardiovascular burden. In this review we will discuss five therapeutic tools for the prevention and treatment of diabetic kidney disease: drugs inhibiting the renin-angiotensin-aldosterone system, statins, the more recently recognized sodium-glucose co-transporter-2 inhibitors, glucagon-like peptide 1 agonists, and a novel non-steroidal selective mineralocorticoid receptor antagonist.
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Affiliation(s)
- Jessica Kearney
- Department of Diabetes and Endocrinology, Guy's and St Thomas NHS Foundation Trust, London SE1 9RT, UK
| | - Luigi Gnudi
- Department of Diabetes and Endocrinology, Guy's and St Thomas NHS Foundation Trust, London SE1 9RT, UK
- School of Cardiovascular and Metabolic Medicine & Sciences, British Heart Foundation Centre of Research Excellence, Faculty of Life Sciences & Medicine, King's College London, London WC2R 2LS, UK
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Hsu CN, Hsuan CF, Liao D, Chang JKJ, Chang AJW, Hee SW, Lee HL, Teng SIF. Anti-Diabetic Therapy and Heart Failure: Recent Advances in Clinical Evidence and Molecular Mechanism. Life (Basel) 2023; 13:1024. [PMID: 37109553 PMCID: PMC10144651 DOI: 10.3390/life13041024] [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: 02/09/2023] [Revised: 03/19/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
Diabetic patients have a two- to four-fold increase in the risk of heart failure (HF), and the co-existence of diabetes and HF is associated with poor prognosis. In randomized clinical trials (RCTs), compelling evidence has demonstrated the beneficial effects of sodium-glucose co-transporter-2 inhibitors on HF. The mechanism includes increased glucosuria, restored tubular glomerular feedback with attenuated renin-angiotensin II-aldosterone activation, improved energy utilization, decreased sympathetic tone, improved mitochondria calcium homeostasis, enhanced autophagy, and reduced cardiac inflammation, oxidative stress, and fibrosis. The RCTs demonstrated a neutral effect of the glucagon-like peptide receptor agonist on HF despite its weight-reducing effect, probably due to it possibly increasing the heart rate via increasing cyclic adenosine monophosphate (cAMP). Observational studies supported the markedly beneficial effects of bariatric and metabolic surgery on HF despite no current supporting evidence from RCTs. Bromocriptine can be used to treat peripartum cardiomyopathy by reducing the harmful cleaved prolactin fragments during late pregnancy. Preclinical studies suggest the possible beneficial effect of imeglimin on HF through improving mitochondrial function, but further clinical evidence is needed. Although abundant preclinical and observational studies support the beneficial effects of metformin on HF, there is limited evidence from RCTs. Thiazolidinediones increase the risk of hospitalized HF through increasing renal tubular sodium reabsorption mediated via both the genomic and non-genomic action of PPARγ. RCTs suggest that dipeptidyl peptidase-4 inhibitors, including saxagliptin and possibly alogliptin, may increase the risk of hospitalized HF, probably owing to increased circulating vasoactive peptides, which impair endothelial function, activate sympathetic tones, and cause cardiac remodeling. Observational studies and RCTs have demonstrated the neutral effects of insulin, sulfonylureas, an alpha-glucosidase inhibitor, and lifestyle interventions on HF in diabetic patients.
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Affiliation(s)
- Chih-Neng Hsu
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital Yunlin Branch, Yunlin 640, Taiwan
| | - Chin-Feng Hsuan
- Division of Cardiology, Department of Internal Medicine, E-Da Hospital, I-Shou University, Kaohsiung 824, Taiwan
- Division of Cardiology, Department of Internal Medicine, E-Da Dachang Hospital, I-Shou University, Kaohsiung 824, Taiwan
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 840, Taiwan
| | - Daniel Liao
- Graduate Institute of Medical Genomics and Proteomics, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Jack Keng-Jui Chang
- Biological Programs for Younger Scholar, Academia Sinica, Taipei 115, Taiwan
| | - Allen Jiun-Wei Chang
- Graduate Institute of Medical Genomics and Proteomics, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Siow-Wey Hee
- Department of Internal Medicine, National Taiwan University Hospital, Taipei 100, Taiwan
| | - Hsiao-Lin Lee
- Graduate Institute of Medical Genomics and Proteomics, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - Sean I. F. Teng
- Department of Cardiology, Ming-Sheng General Hospital, Taoyuan 330, Taiwan
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Yu W, Xie D, Yamamoto T, Koyama H, Cheng J. Mechanistic insights of soluble uric acid-induced insulin resistance: Insulin signaling and beyond. Rev Endocr Metab Disord 2023; 24:327-343. [PMID: 36715824 DOI: 10.1007/s11154-023-09787-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/10/2023] [Indexed: 01/31/2023]
Abstract
Hyperuricemia is a metabolic disease caused by purine nucleotide metabolism disorder. The prevalence of hyperuricemia is increasing worldwide, with a growing trend in the younger populations. Although numerous studies have indicated that hyperuricemia may be an independent risk factor for insulin resistance, the causal relationship between the two is controversial. There are few reviews, however, focusing on the relationship between uric acid (UA) and insulin resistance from experimental studies. In this review, we summarized the experimental models related to soluble UA-induced insulin resistance in pancreas and peripheral tissues, including skeletal muscles, adipose tissue, liver, heart/cardiomyocytes, vascular endothelial cells and macrophages. In addition, we summarized the research advances about the key mechanism of UA-induced insulin resistance. Moreover, we attempt to identify novel targets for the treatment of hyperuricemia-related insulin resistance. Lastly, we hope that the present review will encourage further researches to solve the chicken-and-egg dilemma between UA and insulin resistance, and provide strategies for the pathogenesis and treatment of hyperuricemia related metabolic diseases.
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Affiliation(s)
- Wei Yu
- Department of Endocrinology, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - De Xie
- Department of Endocrinology, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Tetsuya Yamamoto
- Health Evaluation Center, Osaka Gyoumeikan Hospital, Osaka, Japan
| | - Hidenori Koyama
- Department of Diabetes, Endocrinology and Clinical Immunology, Hyogo Medical University, Nishinomiya, Hyogo, Japan
| | - Jidong Cheng
- Department of Endocrinology, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China.
- Department of Diabetes, Endocrinology and Clinical Immunology, Hyogo Medical University, Nishinomiya, Hyogo, Japan.
- Xiamen Key Laboratory of Translational Medicine for Nucleic Acid Metabolism and Regulation, Xiamen, Fujian, China.
- Department of Endocrinology, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, 361102, Fujian, People's Republic of China.
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Burrage MK, Lewis AJ, Miller JJJ. Functional and Metabolic Imaging in Heart Failure with Preserved Ejection Fraction: Promises, Challenges, and Clinical Utility. Cardiovasc Drugs Ther 2023; 37:379-399. [PMID: 35881280 PMCID: PMC10014679 DOI: 10.1007/s10557-022-07355-7] [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] [Accepted: 06/08/2022] [Indexed: 11/29/2022]
Abstract
Heart failure with preserved ejection fraction (HFpEF) is recognised as an increasingly prevalent, morbid and burdensome condition with a poor outlook. Recent advances in both the understanding of HFpEF and the technological ability to image cardiac function and metabolism in humans have simultaneously shone a light on the molecular basis of this complex condition of diastolic dysfunction, and the inflammatory and metabolic changes that are associated with it, typically in the context of a complex patient. This review both makes the case for an integrated assessment of the condition, and highlights that metabolic alteration may be a measurable outcome for novel targeted forms of medical therapy. It furthermore highlights how recent technological advancements and advanced medical imaging techniques have enabled the characterisation of the metabolism and function of HFpEF within patients, at rest and during exercise.
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Affiliation(s)
- Matthew K Burrage
- Oxford Centre for Clinical Cardiovascular Magnetic Resonance Research (OCMR); Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
| | - Andrew J Lewis
- Oxford Centre for Clinical Cardiovascular Magnetic Resonance Research (OCMR); Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
- Department of Physiology, Anatomy and Genetics, University of Oxford, Parks Road, Oxford, UK
| | - Jack J J. Miller
- Oxford Centre for Clinical Cardiovascular Magnetic Resonance Research (OCMR); Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, Oxford, UK
- Department of Physiology, Anatomy and Genetics, University of Oxford, Parks Road, Oxford, UK
- The PET Research Centre and The MR Research Centre, Aarhus University, Aarhus, Denmark
- Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford, UK
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Hasebe M, Yoshiji S, Keidai Y, Minamino H, Murakami T, Tanaka D, Fujita Y, Harada N, Hamasaki A, Inagaki N. Efficacy of antihyperglycemic therapies on cardiovascular and heart failure outcomes: an updated meta-analysis and meta-regression analysis of 35 randomized cardiovascular outcome trials. Cardiovasc Diabetol 2023; 22:62. [PMID: 36935489 PMCID: PMC10024854 DOI: 10.1186/s12933-023-01773-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/14/2023] [Indexed: 03/21/2023] Open
Abstract
BACKGROUND Effects of antihyperglycemic therapies on cardiovascular and heart failure (HF) risks have varied widely across cardiovascular outcome trials (CVOTs), and underlying factors remain incompletely understood. We aimed to determine the relationships of glycated hemoglobin (HbA1c) or bodyweight changes with these outcomes in all CVOTs of antihyperglycemic therapies. METHODS We searched PubMed and EMBASE up to 25 January 2023 for all randomized controlled CVOTs of antihyperglycemic therapies reporting both major adverse cardiovascular events (MACE) and HF outcomes in patients with type 2 diabetes or prediabetes. We performed meta-regression analyses following random-effects meta-analyses to evaluate the effects of HbA1c or bodyweight reductions on each outcome. RESULTS Thirty-five trials comprising 256,524 patients were included. Overall, antihyperglycemic therapies reduced MACE by 9% [risk ratio (RR): 0.91; 95% confidence interval (CI) 0.88-0.94; P < 0.001; I2 = 36.5%]. In meta-regression, every 1% greater reduction in HbA1c was associated with a 14% reduction in the RR of MACE (95% CI 4-24; P = 0.010), whereas bodyweight change was not associated with the RR of MACE. The magnitude of the reduction in MACE risk associated with HbA1c reduction was greater in trials with a higher baseline prevalence of atherosclerotic cardiovascular disease. On the other hand, antihyperglycemic therapies showed no overall significant effect on HF (RR: 0.95; 95% CI 0.87-1.04; P = 0.28; I2 = 75.9%). In a subgroup analysis based on intervention type, sodium-glucose cotransporter-2 inhibitors (SGLT2i) conferred the greatest HF risk reduction (RR: 0.68; 95% CI 0.62-0.75; P < 0.001; I2 = 0.0%). In meta-regression, every 1 kg bodyweight reduction, but not HbA1c reduction, was found to reduce the RR of HF by 7% (95% CI 4-10; P < 0.001); however, significant residual heterogeneity (P < 0.001) was observed, and SGLT2i reduced HF more than could be explained by HbA1c or bodyweight reductions. CONCLUSIONS Antihyperglycemic therapies reduce MACE in an HbA1c-dependent manner. These findings indicate that HbA1c can be a useful marker of MACE risk reduction across a wide range of antihyperglycemic therapies, including drugs with pleiotropic effects. In contrast, HF is reduced not in an HbA1c-dependent but in a bodyweight-dependent manner. Notably, SGLT2i have shown class-specific benefits for HF beyond HbA1c or bodyweight reductions.
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Affiliation(s)
- Masashi Hasebe
- Department of Diabetes and Endocrinology, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Satoshi Yoshiji
- Department of Diabetes and Endocrinology, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan.
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
- Department of Human Genetics, McGill University, Montréal, QC, Canada.
- Kyoto-McGill International Collaborative Program in Genomic Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
| | - Yamato Keidai
- Department of Diabetes and Endocrinology, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Hiroto Minamino
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Takaaki Murakami
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Daisuke Tanaka
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yoshihito Fujita
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Norio Harada
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Akihiro Hamasaki
- Department of Diabetes and Endocrinology, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan
| | - Nobuya Inagaki
- Department of Diabetes and Endocrinology, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan.
- Department of Diabetes, Endocrinology and Nutrition, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
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Metabolic landscape in cardiac aging: insights into molecular biology and therapeutic implications. Signal Transduct Target Ther 2023; 8:114. [PMID: 36918543 PMCID: PMC10015017 DOI: 10.1038/s41392-023-01378-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 02/06/2023] [Accepted: 02/20/2023] [Indexed: 03/16/2023] Open
Abstract
Cardiac aging is evident by a reduction in function which subsequently contributes to heart failure. The metabolic microenvironment has been identified as a hallmark of malignancy, but recent studies have shed light on its role in cardiovascular diseases (CVDs). Various metabolic pathways in cardiomyocytes and noncardiomyocytes determine cellular senescence in the aging heart. Metabolic alteration is a common process throughout cardiac degeneration. Importantly, the involvement of cellular senescence in cardiac injuries, including heart failure and myocardial ischemia and infarction, has been reported. However, metabolic complexity among human aging hearts hinders the development of strategies that targets metabolic susceptibility. Advances over the past decade have linked cellular senescence and function with their metabolic reprogramming pathway in cardiac aging, including autophagy, oxidative stress, epigenetic modifications, chronic inflammation, and myocyte systolic phenotype regulation. In addition, metabolic status is involved in crucial aspects of myocardial biology, from fibrosis to hypertrophy and chronic inflammation. However, further elucidation of the metabolism involvement in cardiac degeneration is still needed. Thus, deciphering the mechanisms underlying how metabolic reprogramming impacts cardiac aging is thought to contribute to the novel interventions to protect or even restore cardiac function in aging hearts. Here, we summarize emerging concepts about metabolic landscapes of cardiac aging, with specific focuses on why metabolic profile alters during cardiac degeneration and how we could utilize the current knowledge to improve the management of cardiac aging.
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Farooq M, Jorde UP. Impact of Sodium-Glucose Cotransporter-2 Inhibitors on Cardiac Bioenergetic Properties and Cardiorespiratory Fitness: A Special Effect of SGLT2i In Heart Failure? Cardiol Rev 2023; 31:65-69. [PMID: 35191660 DOI: 10.1097/crd.0000000000000424] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Recent clinical trials have highlighted the profound benefits of sodium-glucose linked transporter 2 inhibitors (SGLT2i) on cardiovascular mortality and hospitalization for heart failure patients. Modest improvements in glycemic, lipid, or blood pressure control are unlikely to contribute to these significant beneficial outcomes, generating much interest in the relevant mechanisms leading to outcome improvements. In this review, we discuss the current evidence supporting a shift in myocardial substrate utilization from carbohydrates and fat oxidation toward energy efficient ketone bodies in the failing heart and the role of SGLT2i in this key metabolic adaptation to optimize myocardial fuel energetics. Further insights into the effect of SGLT2i on the indices of cardiorespiratory fitness are outlined and provide important clues into their mechanism of benefit. This mechanistic discussion in the context of recent trials of SGLT2i denotes a promising treatment paradigm of heart failure in individuals with and without diabetes.
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Affiliation(s)
- Muhammad Farooq
- From the Division of Cardiology, Montefiore Medical Center and Albert Einstein College of Medicine, Bronx, NY
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Emerging Therapy for Diabetic Cardiomyopathy: From Molecular Mechanism to Clinical Practice. Biomedicines 2023; 11:biomedicines11030662. [PMID: 36979641 PMCID: PMC10045486 DOI: 10.3390/biomedicines11030662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 02/08/2023] [Accepted: 02/11/2023] [Indexed: 02/24/2023] Open
Abstract
Diabetic cardiomyopathy is characterized by abnormal myocardial structure or performance in the absence of coronary artery disease or significant valvular heart disease in patients with diabetes mellitus. The spectrum of diabetic cardiomyopathy ranges from subtle myocardial changes to myocardial fibrosis and diastolic function and finally to symptomatic heart failure. Except for sodium–glucose transport protein 2 inhibitors and possibly bariatric and metabolic surgery, there is currently no specific treatment for this distinct disease entity in patients with diabetes. The molecular mechanism of diabetic cardiomyopathy includes impaired nutrient-sensing signaling, dysregulated autophagy, impaired mitochondrial energetics, altered fuel utilization, oxidative stress and lipid peroxidation, advanced glycation end-products, inflammation, impaired calcium homeostasis, abnormal endothelial function and nitric oxide production, aberrant epidermal growth factor receptor signaling, the activation of the renin–angiotensin–aldosterone system and sympathetic hyperactivity, and extracellular matrix accumulation and fibrosis. Here, we summarize several important emerging treatments for diabetic cardiomyopathy targeting specific molecular mechanisms, with evidence from preclinical studies and clinical trials.
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Renal and Cardiovascular Metabolic Impact Caused by Ketogenesis of the SGLT2 Inhibitors. Int J Mol Sci 2023; 24:ijms24044144. [PMID: 36835554 PMCID: PMC9960541 DOI: 10.3390/ijms24044144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
Sodium-glucose cotransporter type 2 inhibitors (SGLT2i) are glycosuric drugs that were originally developed for the treatment of type 2 diabetes mellitus (T2DM). There is a hypothesis that SGLT2i are drugs that are capable of increasing ketone bodies and free fatty acids. The idea is that they could serve as the necessary fuel, instead of glucose, for the purposes of cardiac muscle requirements and could explain antihypertensive effects, which are independent of renal function. The adult heart, under normal conditions, consumes around 60% to 90% of the cardiac energy that is derived from the oxidation of free fatty acids. In addition, a small proportion also comes from other available substrates. In order to meet energy demands with respect to achieving adequate cardiac function, the heart is known to possess metabolic flexibility. This allows it to switch between different available substrates in order to obtain the energy molecule adenosine triphosphate (ATP), thereby rendering it highly adaptive. It must be noted that oxidative phosphorylation in aerobic organisms is the main source of ATP, which is a result of reduced cofactors. These cofactors include nicotine adenine dinucleotide (NADH) and flavin adenine dinucleotide (FADH2), which are the result of electron transfer and are used as the enzymatic cofactors that are involved in the respiratory chain. When there is an excessive increase in energy nutrients-such as glucose and fatty acids-which occur in the absence of a parallel increase in demand, a state of nutrient surplus (which is better known as an excess in supply) is created. The use of SGLT2i at the renal level has also been shown to generate beneficial metabolic alterations, which are obtained by reducing the glucotoxicity that is induced by glycosuria. Together with the reduction in perivisceral fat in various organs, such alterations also lead to the use of free fatty acids in the initial stages of the affected heart. Subsequently, this results in an increase in production with respect to ketoacids, which are a more available energy fuel at the cellular level. In addition, even though their mechanism is not fully understood, their vast benefits render them of incredible importance for the purposes of further research.
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Ekanayake P, Mudaliar S. Increase in hematocrit with SGLT-2 inhibitors - Hemoconcentration from diuresis or increased erythropoiesis after amelioration of hypoxia? Diabetes Metab Syndr 2023; 17:102702. [PMID: 36657305 DOI: 10.1016/j.dsx.2022.102702] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/27/2022] [Accepted: 12/29/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND AIMS The SGLT2-inhibitors significantly reduce heart failure hospitalization and progression to end-stage kidney disease. An increase in hemoglobin/hematocrit is seen with SGLT2i-inhibitor treatment. This increase has been attributed to hemoconcentration resulting from a diuretic effect. In this review, we present evidence suggesting that the hematocrit increase is not due to hemoconcentration, but to an increase in erythropoiesis due to amelioration of hypoxia and more efficient erythropoietin production with SGLT2-inhibitor treatment. METHODS We performed a detailed review of the literature in PubMed for articles describing various mechanisms linking hematocrit increase with SGLT2-inhibitor use to their cardio-renal benefits. RESULTS The best predictor of cardio-renal benefits with SGLT2-inhibitors is an increase in hematocrit and hemoglobin. If this hemoconcentration is a results of diuresis, this would be associated with volume contraction and a deterioration in renal function, as seen with long-term diuretic use. This is the opposite of what is seen with the use of SGLT2-inhibitors, which are associated with long-term preservation of renal function. There is now growing evidence that the increase in hematocrit can be attributed to an increase in erythropoiesis due to amelioration of renal hypoxia and more efficient erythropoietin production with SGLT2-inhibitor treatment. Increased erythropoiesis leads to an increase in RBC count which improves myocardial/renal tissue oxygenation and function. CONCLUSION The increase in hematocrit with SGLT2i treatment is not due to hemoconcentration, but to an increase in erythropoiesis due to amelioration of hypoxia and more efficient erythropoietin production with SGLT2i treatment.
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Affiliation(s)
- Preethika Ekanayake
- Veterans Affairs Medical Center, San Diego, CA, USA; Department of Medicine, University of California, San Diego School of Medicine, USA
| | - Sunder Mudaliar
- Veterans Affairs Medical Center, San Diego, CA, USA; Department of Medicine, University of California, San Diego School of Medicine, USA.
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Mechanisms of SGLT2 Inhibitors in Heart Failure and Their Clinical Value. J Cardiovasc Pharmacol 2023; 81:4-14. [PMID: 36607775 DOI: 10.1097/fjc.0000000000001380] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 10/08/2022] [Indexed: 01/07/2023]
Abstract
ABSTRACT Sodium-glucose cotransporter 2 (SGLT2) inhibitors are widely used to treat diabetes mellitus. Abundant evidence has shown that SGLT2 inhibitors can reduce hospitalization for heart failure (HF) in patients with or without diabetes. An increasing number of studies are being conducted on the mechanisms of action of SGLT2 inhibitors in HF. Our review summarizes a series of clinical trials on the cardioprotective effects of SGLT2 inhibitors in the treatment of HF. We have summarized several classical SGLT2 inhibitors in cardioprotection research, including empagliflozin, dapagliflozin, canagliflozin, ertugliflozin, and sotagliflozin. In addition, we provided a brief overview of the safety and benefits of SGLT2 inhibitors. Finally, we focused on the mechanisms of SGLT2 inhibitors in the treatment of HF, including ion-exchange regulation, volume regulation, ventricular remodeling, and cardiac energy metabolism. Exploring the mechanisms of SGLT2 inhibitors has provided insight into repurposing these diabetic drugs for the treatment of HF.
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Vigers T, Vinovskis C, Li LP, Prasad P, Heerspink H, D'Alessandro A, Reisz JA, Piani F, Cherney DZ, van Raalte DH, Nadeau KJ, Pavkov ME, Nelson RG, Pyle L, Bjornstad P. Plasma levels of carboxylic acids are markers of early kidney dysfunction in young people with type 1 diabetes. Pediatr Nephrol 2023; 38:193-202. [PMID: 35507146 PMCID: PMC10182875 DOI: 10.1007/s00467-022-05531-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/25/2022] [Accepted: 03/07/2022] [Indexed: 01/10/2023]
Abstract
BACKGROUND We compared plasma metabolites of amino acid oxidation and the tricarboxylic acid (TCA) cycle in youth with and without type 1 diabetes mellitus (T1DM) and related the metabolites to glomerular filtration rate (GFR), renal plasma flow (RPF), and albuminuria. Metabolites associated with impaired kidney function may warrant future study as potential biomarkers or even future interventions to improve kidney bioenergetics. METHODS Metabolomic profiling of fasting plasma samples using a targeted panel of 644 metabolites and an untargeted panel of 19,777 metabolites was performed in 50 youth with T1DM ≤ 10 years and 20 controls. GFR and RPF were ascertained by iohexol and p-aminohippurate clearance, and albuminuria calculated as urine albumin to creatinine ratio. Sparse partial least squares discriminant analysis and moderated t tests were used to identify metabolites associated with GFR and RPF. RESULTS Adolescents with and without T1DM were similar in age (16.1 ± 3.0 vs. 16.1 ± 2.9 years) and BMI (23.4 ± 5.1 vs. 22.7 ± 3.7 kg/m2), but those with T1DM had higher GFR (189 ± 40 vs. 136 ± 22 ml/min) and RPF (820 ± 125 vs. 615 ± 65 ml/min). Metabolites of amino acid oxidation and the TCA cycle were significantly lower in adolescents with T1DM vs. controls, and the measured metabolites were able to discriminate diabetes status with an AUC of 0.82 (95% CI: 0.71, 0.93) and error rate of 0.21. Lower glycine (r:-0.33, q = 0.01), histidine (r:-0.45, q < 0.001), methionine (r: -0.29, q = 0.02), phenylalanine (r: -0.29, q = 0.01), serine (r: -0.42, q < 0.001), threonine (r: -0.28, q = 0.02), citrate (r: -0.35, q = 0.003), fumarate (r: -0.24, q = 0.04), and malate (r: -0.29, q = 0.02) correlated with higher GFR. Lower glycine (r: -0.28, q = 0.04), phenylalanine (r:-0.3, q = 0.03), fumarate (r: -0.29, q = 0.04), and malate (r: -0.5, q < 0.001) correlated with higher RPF. Lower histidine (r: -0.28, q = 0.02) was correlated with higher mean ACR. CONCLUSIONS In conclusion, adolescents with relatively short T1DM duration exhibited lower plasma levels of carboxylic acids that associated with hyperfiltration and hyperperfusion. TRIAL REGISTRATION ClinicalTrials.gov NCT03618420 and NCT03584217 A higher resolution version of the Graphical abstract is available as Supplementary information.
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Affiliation(s)
- Timothy Vigers
- Department of Pediatrics, Section of Endocrinology, University of Colorado School of Medicine, Aurora, CO, USA.
- Department of Biostatistics and Informatics, Colorado School of Public Health, 13123 E 16th Ave, A036-B265, Aurora, CO, 80045, USA.
| | - Carissa Vinovskis
- Department of Pediatrics, Section of Endocrinology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Lu-Ping Li
- Department of Radiology, NorthShore University HealthSystem, Evanston, IL, USA
| | - Pottumarthi Prasad
- Department of Radiology, NorthShore University HealthSystem, Evanston, IL, USA
| | - Hiddo Heerspink
- Department Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Federica Piani
- Department of Pediatrics, Section of Endocrinology, University of Colorado School of Medicine, Aurora, CO, USA
| | - David Z Cherney
- Department of Medicine, Division of Nephrology, University of Toronto School of Medicine, Toronto, Ontario, Canada
| | - Daniel H van Raalte
- Diabetes Center, Department of Internal Medicine, Amsterdam University Medical Centers, location VUmc, Amsterdam, the Netherlands
| | - Kristen J Nadeau
- Department of Pediatrics, Section of Endocrinology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Meda E Pavkov
- Division of Diabetes Translation, Center for Disease Control and Prevention, Atlanta, GA, USA
| | - Robert G Nelson
- Chronic Kidney Disease Section, Phoenix Epidemiology and Clinical Research Branch, NIDDK, Phoenix, AZ, USA
| | - Laura Pyle
- Department of Pediatrics, Section of Endocrinology, University of Colorado School of Medicine, Aurora, CO, USA
- Department of Biostatistics and Informatics, Colorado School of Public Health, 13123 E 16th Ave, A036-B265, Aurora, CO, 80045, USA
| | - Petter Bjornstad
- Department of Pediatrics, Section of Endocrinology, University of Colorado School of Medicine, Aurora, CO, USA
- Department of Medicine, Division of Nephrology, University of Colorado School of Medicine, Aurora, CO, USA
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Succurro E, Vizza P, Papa A, Miceli S, Cicone F, Fiorentino TV, Sciacqua A, Andreozzi F, Veltri P, Cascini GL, Sesti G. Effects of 26 weeks of treatment with empagliflozin versus glimepiride on the myocardial glucose metabolic rate in patients with type 2 diabetes: The randomized, open-label, crossover, active-comparator FIORE trial. Diabetes Obes Metab 2022; 24:2319-2330. [PMID: 35837991 PMCID: PMC9804559 DOI: 10.1111/dom.14816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 06/28/2022] [Accepted: 07/11/2022] [Indexed: 01/05/2023]
Abstract
AIM To determine whether treatment with empagliflozin was able to affect the myocardial glucose metabolic rate, as assessed by cardiac dynamic 18 F-fluorodeoxyglucose-positron emission tomography (18 F-FDG-PET) combined with euglycaemic-hyperinsulinaemic clamp compared with glimepiride in patients with type 2 diabetes. MATERIALS AND METHODS To further investigate the cardioprotective mechanism of sodium-glucose co-transporter-2 inhibitors, we performed a 26-week, randomized, open-label, crossover, active-comparator study to determine the effects of empagliflozin 10 mg versus glimepiride 2 mg daily on the myocardial glucose metabolic rate assessed by cardiac dynamic 18 F-FDG-PET combined with euglycaemic-hyperinsulinaemic clamp in 23 patients with type 2 diabetes. We also measured cardiac geometry and myocardial mechano-energetic efficiency, as well as systolic and diastolic function by echocardiography. RESULTS Compared with glimepiride, treatment with empagliflozin resulted in a greater reduction in the myocardial glucose metabolic rate from baseline to 26 weeks (adjusted difference -6.07 [-8.59, -3.55] μmol/min/100 g; P < .0001). Moreover, compared with glimepiride, empagliflozin led to significant reductions in left atrial diameter, left ventricular end-systolic and end-diastolic volumes, N-terminal pro b-type natriuretic peptide levels, blood pressure, heart rate, stroke work, and myocardial oxygen consumption estimated by the rate pressure product, and increases in ejection fraction, myocardial mechano-energetic efficiency, red blood cells, and haematocrit and haemoglobin levels. CONCLUSIONS The present study provides evidence that empagliflozin treatment in subjects with type 2 diabetes without coronary artery disease leads to a significant reduction in the myocardial glucose metabolic rate.
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Affiliation(s)
- Elena Succurro
- Department of Medical and Surgical SciencesUniversity Magna Graecia of CatanzaroCatanzaroItaly
- Research Center for the Prevention and Treatment of Metabolic Diseases (CR METDIS)University Magna Graecia of CatanzaroCatanzaroItaly
| | - Patrizia Vizza
- Department of Medical and Surgical SciencesUniversity Magna Graecia of CatanzaroCatanzaroItaly
| | - Annalisa Papa
- Department of Experimental and Clinical MedicineMagna Graecia University of CatanzaroCatanzaroItaly
| | - Sofia Miceli
- Department of Medical and Surgical SciencesUniversity Magna Graecia of CatanzaroCatanzaroItaly
| | - Francesco Cicone
- Department of Experimental and Clinical MedicineMagna Graecia University of CatanzaroCatanzaroItaly
| | | | - Angela Sciacqua
- Department of Medical and Surgical SciencesUniversity Magna Graecia of CatanzaroCatanzaroItaly
- Research Center for the Prevention and Treatment of Metabolic Diseases (CR METDIS)University Magna Graecia of CatanzaroCatanzaroItaly
| | - Francesco Andreozzi
- Department of Medical and Surgical SciencesUniversity Magna Graecia of CatanzaroCatanzaroItaly
- Research Center for the Prevention and Treatment of Metabolic Diseases (CR METDIS)University Magna Graecia of CatanzaroCatanzaroItaly
| | - Pierangelo Veltri
- Department of Medical and Surgical SciencesUniversity Magna Graecia of CatanzaroCatanzaroItaly
| | - Giuseppe Lucio Cascini
- Department of Experimental and Clinical MedicineMagna Graecia University of CatanzaroCatanzaroItaly
| | - Giorgio Sesti
- Department of Clinical and Molecular MedicineUniversity of Rome‐SapienzaRomeItaly
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