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Zhang XJ, Han XW, Jiang YH, Wang YL, He XL, Liu DH, Huang J, Liu HH, Ye TC, Li SJ, Li ZR, Dong XM, Wu HY, Long WJ, Ni SH, Lu L, Yang ZQ. Impact of inflammation and anti-inflammatory modalities on diabetic cardiomyopathy healing: From fundamental research to therapy. Int Immunopharmacol 2023; 123:110747. [PMID: 37586299 DOI: 10.1016/j.intimp.2023.110747] [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: 05/15/2023] [Revised: 07/18/2023] [Accepted: 07/29/2023] [Indexed: 08/18/2023]
Abstract
Diabetic cardiomyopathy (DCM) is a prevalent cardiovascular complication of diabetes mellitus, characterized by high morbidity and mortality rates worldwide. However, treatment options for DCM remain limited. For decades, a substantial body of evidence has suggested that the inflammatory response plays a pivotal role in the development and progression of DCM. Notably, DCM is closely associated with alterations in inflammatory cells, exerting direct effects on major resident cells such as cardiomyocytes, vascular endothelial cells, and fibroblasts. These cellular changes subsequently contribute to the development of DCM. This article comprehensively analyzes cellular, animal, and human studies to summarize the latest insights into the impact of inflammation on DCM. Furthermore, the potential therapeutic effects of current anti-inflammatory drugs in the management of DCM are also taken into consideration. The ultimate goal of this work is to consolidate the existing literature on the inflammatory processes underlying DCM, providing clinicians with the necessary knowledge and tools to adopt a more efficient and evidence-based approach to managing this condition.
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Affiliation(s)
- Xiao-Jiao Zhang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Xiao-Wei Han
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Yan-Hui Jiang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Ya-Le Wang
- Shanghai University of Traditional Chinese Medicine, 1200 Cai lun Road, Pudong New District, Shanghai 201203, China; Shenzhen Hospital, Shanghai University of Traditional Chinese Medicine, 16 Xian tong Road, Luo hu District, Shenzhen, Guangdong 518004, China
| | - Xing-Ling He
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Dong-Hua Liu
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Jie Huang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Hao-Hui Liu
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Tao-Chun Ye
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Si-Jing Li
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Zi-Ru Li
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Xiao-Ming Dong
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China
| | - Hong-Yan Wu
- Shanghai University of Traditional Chinese Medicine, 1200 Cai lun Road, Pudong New District, Shanghai 201203, China; Shenzhen Hospital, Shanghai University of Traditional Chinese Medicine, 16 Xian tong Road, Luo hu District, Shenzhen, Guangdong 518004, China.
| | - Wen-Jie Long
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China.
| | - Shi-Hao Ni
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China.
| | - Lu Lu
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China.
| | - Zhong-Qi Yang
- The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510407, China; University Key Laboratory of Traditional Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangdong Province 510407, China; Guangzhou Key Laboratory for Chinese Medicine Prevention and Treatment of Chronic Heart Failure, Guangzhou University of Chinese Medicine, Guangzhou 510407, China.
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2
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van de Bovenkamp AA, Geurkink KTJ, Oosterveer FT, de Man FS, Kok WE, Bronzwaer PN, Allaart CP, Nederveen AJ, van Rossum AC, Bakermans AJ, Handoko ML. Trimetazidine in heart failure with preserved ejection fraction: a randomized controlled cross-over trial. ESC Heart Fail 2023; 10:2998-3010. [PMID: 37530098 PMCID: PMC10567667 DOI: 10.1002/ehf2.14418] [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: 02/16/2023] [Revised: 05/04/2023] [Accepted: 05/11/2023] [Indexed: 08/03/2023] Open
Abstract
AIMS Impaired myocardial energy homeostasis plays an import role in the pathophysiology of heart failure with preserved ejection fraction (HFpEF). Left ventricular relaxation has a high energy demand, and left ventricular diastolic dysfunction has been related to impaired energy homeostasis. This study investigated whether trimetazidine, a fatty acid oxidation inhibitor, could improve myocardial energy homeostasis and consequently improve exercise haemodynamics in patients with HFpEF. METHODS AND RESULTS The DoPING-HFpEF trial was a phase II single-centre, double-blind, placebo-controlled, randomized cross-over trial. Patients were randomized to trimetazidine treatment or placebo for 3 months and switched after a 2-week wash-out period. The primary endpoint was change in pulmonary capillary wedge pressure, measured with right heart catheterization at multiple stages of bicycling exercise. Secondary endpoint was change in myocardial phosphocreatine/adenosine triphosphate, an index of the myocardial energy status, measured with phosphorus-31 magnetic resonance spectroscopy. The study included 25 patients (10/15 males/females; mean (standard deviation) age, 66 (10) years; body mass index, 29.8 (4.5) kg/m2 ); with the diagnosis of HFpEF confirmed with (exercise) right heart catheterization either before or during the trial. There was no effect of trimetazidine on the primary outcome pulmonary capillary wedge pressure at multiple levels of exercise (mean change 0 [95% confidence interval, 95% CI -2, 2] mmHg over multiple levels of exercise, P = 0.60). Myocardial phosphocreatine/adenosine triphosphate in the trimetazidine arm was similar to placebo (1.08 [0.76, 1.76] vs. 1.30 [0.95, 1.86], P = 0.08). There was no change by trimetazidine compared with placebo in the exploratory parameters: 6-min walking distance (mean change of -6 [95% CI -18, 7] m vs. -5 [95% CI -22, 22] m, respectively, P = 0.93), N-terminal pro-B-type natriuretic peptide (5 (-156, 166) ng/L vs. -13 (-172, 147) ng/L, P = 0.70), overall quality-of-life (KCCQ and EQ-5D-5L, P = 0.78 and P = 0.51, respectively), parameters for diastolic function measured with echocardiography and cardiac magnetic resonance, or metabolic parameters. CONCLUSIONS Trimetazidine did not improve myocardial energy homeostasis and did not improve exercise haemodynamics in patients with HFpEF.
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Affiliation(s)
- Arno A. van de Bovenkamp
- Department of CardiologyAmsterdam University Medical Centers, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Amsterdam Cardiovascular SciencesAmsterdamThe Netherlands
| | - Kiki T. J. Geurkink
- Department of CardiologyAmsterdam University Medical Centers, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Frank T.P. Oosterveer
- Department of Pulmonary MedicineAmsterdam University Medical Centers, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Frances S. de Man
- Amsterdam Cardiovascular SciencesAmsterdamThe Netherlands
- Department of Pulmonary MedicineAmsterdam University Medical Centers, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
| | - Wouter E.M. Kok
- Amsterdam Cardiovascular SciencesAmsterdamThe Netherlands
- Department of Clinical and Experimental CardiologyAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | | | - Cor P. Allaart
- Department of CardiologyAmsterdam University Medical Centers, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Amsterdam Cardiovascular SciencesAmsterdamThe Netherlands
| | - Aart J. Nederveen
- Department of Radiology and Nuclear MedicineAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - Albert C. van Rossum
- Department of CardiologyAmsterdam University Medical Centers, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Amsterdam Cardiovascular SciencesAmsterdamThe Netherlands
| | - Adrianus J. Bakermans
- Department of Radiology and Nuclear MedicineAmsterdam University Medical Centers, University of AmsterdamAmsterdamThe Netherlands
| | - M. Louis Handoko
- Department of CardiologyAmsterdam University Medical Centers, Vrije Universiteit AmsterdamAmsterdamThe Netherlands
- Amsterdam Cardiovascular SciencesAmsterdamThe Netherlands
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3
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Hafkamp FJ, Tio RA, Otterspoor LC, de Greef T, van Steenbergen GJ, van de Ven ART, Smits G, Post H, van Veghel D. Optimal effectiveness of heart failure management - an umbrella review of meta-analyses examining the effectiveness of interventions to reduce (re)hospitalizations in heart failure. Heart Fail Rev 2022; 27:1683-1748. [PMID: 35239106 PMCID: PMC8892116 DOI: 10.1007/s10741-021-10212-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/15/2021] [Indexed: 12/11/2022]
Abstract
Heart failure (HF) is a major health concern, which accounts for 1-2% of all hospital admissions. Nevertheless, there remains a knowledge gap concerning which interventions contribute to effective prevention of HF (re)hospitalization. Therefore, this umbrella review aims to systematically review meta-analyses that examined the effectiveness of interventions in reducing HF-related (re)hospitalization in HFrEF patients. An electronic literature search was performed in PubMed, Web of Science, PsycInfo, Cochrane Reviews, CINAHL, and Medline to identify eligible studies published in the English language in the past 10 years. Primarily, to synthesize the meta-analyzed data, a best-evidence synthesis was used in which meta-analyses were classified based on level of validity. Secondarily, all unique RCTS were extracted from the meta-analyses and examined. A total of 44 meta-analyses were included which encompassed 186 unique RCTs. Strong or moderate evidence suggested that catheter ablation, cardiac resynchronization therapy, cardiac rehabilitation, telemonitoring, and RAAS inhibitors could reduce (re)hospitalization. Additionally, limited evidence suggested that multidisciplinary clinic or self-management promotion programs, beta-blockers, statins, and mitral valve therapy could reduce HF hospitalization. No, or conflicting evidence was found for the effects of cell therapy or anticoagulation. This umbrella review highlights different levels of evidence regarding the effectiveness of several interventions in reducing HF-related (re)hospitalization in HFrEF patients. It could guide future guideline development in optimizing care pathways for heart failure patients.
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Affiliation(s)
| | - Rene A. Tio
- Netherlands Heart Network, Veldhoven, The Netherlands
- Catharina Hospital, Eindhoven, The Netherlands
| | - Luuk C. Otterspoor
- Netherlands Heart Network, Veldhoven, The Netherlands
- Catharina Hospital, Eindhoven, The Netherlands
| | - Tineke de Greef
- Netherlands Heart Network, Veldhoven, The Netherlands
- Catharina Hospital, Eindhoven, The Netherlands
| | | | - Arjen R. T. van de Ven
- Netherlands Heart Network, Veldhoven, The Netherlands
- St. Anna Hospital, Geldrop, The Netherlands
| | - Geert Smits
- Netherlands Heart Network, Veldhoven, The Netherlands
- Primary care group Pozob, Veldhoven, The Netherlands
| | - Hans Post
- Netherlands Heart Network, Veldhoven, The Netherlands
- Catharina Hospital, Eindhoven, The Netherlands
| | - Dennis van Veghel
- Netherlands Heart Network, Veldhoven, The Netherlands
- Catharina Hospital, Eindhoven, The Netherlands
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4
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Chen X, Xia X, Dong T, Lin Z, Du L, Zhou H. Trimetazidine Reduces Cardiac Fibrosis in Rats by Inhibiting NOX2-Mediated Endothelial-to-Mesenchymal Transition. Drug Des Devel Ther 2022; 16:2517-2527. [PMID: 35946039 PMCID: PMC9357386 DOI: 10.2147/dddt.s360283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 07/23/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Methods Results Conclusion
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Affiliation(s)
- Xingxing Chen
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Xue Xia
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Tiancheng Dong
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Zhiwei Lin
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Leilei Du
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Hao Zhou
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People’s Republic of China
- Correspondence: Hao Zhou, Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, NanBai Xiang Avenue, Ouhai District, Wenzhou, 325000, People’s Republic of China, Tel +86 1 396 880 1939, Fax +86 577 555 79796, Email
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5
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Takahara S, Soni S, Maayah ZH, Ferdaoussi M, Dyck JRB. Ketone Therapy for Heart Failure: Current Evidence for Clinical Use. Cardiovasc Res 2021; 118:977-987. [PMID: 33705533 DOI: 10.1093/cvr/cvab068] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/09/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023] Open
Abstract
During conditions that result in depleted circulating glucose levels, ketone bodies synthesized in the liver are necessary fuel substrates for the brain. In other organs such as the heart, the reliance on ketones for generating energy is less life threatening as the heart can utilize alternative fuel sources such as fatty acids. However, during pathophysiological conditions such as heart failure, cardiac defects in metabolic processes that normally allow for sufficient energy production from fatty acids and carbohydrates contribute to a decline in contractile function. As such, it has been proposed that the failing heart relies more on ketone bodies as an energy source than previously appreciated. Furthermore, it has been suggested that ketone bodies may function as signaling molecules that can suppress systemic and cardiac inflammation. Thus, it is possible that intentionally elevating circulating ketones may be beneficial as an adjunct treatment for heart failure. Although many approaches can be used for 'ketone therapy', each of these has their own advantages and disadvantages in the treatment of heart failure. Thus, we summarize current preclinical and clinical studies involving various types of ketone therapy in cardiac disease and discuss the advantages and disadvantages of each modality as possible treatments for heart failure.
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Affiliation(s)
- Shingo Takahara
- Cardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Shubham Soni
- Cardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Zaid H Maayah
- Cardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Mourad Ferdaoussi
- Cardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Jason R B Dyck
- Cardiovascular Research Centre, Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
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6
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Shu H, Peng Y, Hang W, Zhou N, Wang DW. Trimetazidine in Heart Failure. Front Pharmacol 2021; 11:569132. [PMID: 33597865 PMCID: PMC7883591 DOI: 10.3389/fphar.2020.569132] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 10/07/2020] [Indexed: 12/13/2022] Open
Abstract
Heart failure is a systemic syndrome caused by multiple pathological factors. Current treatments do not have satisfactory outcomes. Several basic studies have revealed the protective effect of trimetazidine on the heart, not only by metabolism modulation but also by relieving myocardial apoptosis, fibrosis, autophagy, and inflammation. Clinical studies have consistently indicated that trimetazidine acts as an adjunct to conventional treatments and improves the symptoms of heart failure. This review summarizes the basic pathological changes in the myocardium, with an emphasis on the alteration of cardiac metabolism in the development of heart failure. The clinical application of trimetazidine in heart failure and the mechanism of its protective effects on the myocardium are carefully discussed, as well as its main adverse effects. The intention of this review is to highlight this treatment as an effective alternative against heart failure and provide additional perspectives for future studies.
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Affiliation(s)
- Hongyang Shu
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Yizhong Peng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weijian Hang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Ning Zhou
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Genetics and Molecular Mechanism of Cardiologic Disorders, Huazhong University of Science and Technology, Wuhan, China
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7
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Gollmer J, Zirlik A, Bugger H. Mitochondrial Mechanisms in Diabetic Cardiomyopathy. Diabetes Metab J 2020; 44:33-53. [PMID: 32097997 PMCID: PMC7043970 DOI: 10.4093/dmj.2019.0185] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 12/20/2019] [Indexed: 02/06/2023] Open
Abstract
Mitochondrial medicine is increasingly discussed as a promising therapeutic approach, given that mitochondrial defects are thought to contribute to many prevalent diseases and their complications. In individuals with diabetes mellitus (DM), defects in mitochondrial structure and function occur in many organs throughout the body, contributing both to the pathogenesis of DM and complications of DM. Diabetic cardiomyopathy (DbCM) is increasingly recognized as an underlying cause of increased heart failure in DM, and several mitochondrial mechanisms have been proposed to contribute to the development of DbCM. Well established mechanisms include myocardial energy depletion due to impaired adenosine triphosphate (ATP) synthesis and mitochondrial uncoupling, and increased mitochondrial oxidative stress. A variety of upstream mechanisms of impaired ATP regeneration and increased mitochondrial reactive oxygen species have been proposed, and recent studies now also suggest alterations in mitochondrial dynamics and autophagy, impaired mitochondrial Ca²⁺ uptake, decreased cardiac adiponectin action, increased O-GlcNAcylation, and impaired activity of sirtuins to contribute to mitochondrial defects in DbCM, among others. In the current review, we present and discuss the evidence that underlies both established and recently proposed mechanisms that are thought to contribute to mitochondrial dysfunction in DbCM.
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Affiliation(s)
- Johannes Gollmer
- Division of Cardiology, Medical University of Graz, Graz, Austria
| | - Andreas Zirlik
- Division of Cardiology, Medical University of Graz, Graz, Austria
| | - Heiko Bugger
- Division of Cardiology, Medical University of Graz, Graz, Austria.
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8
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Bonora M, Wieckowski MR, Sinclair DA, Kroemer G, Pinton P, Galluzzi L. Targeting mitochondria for cardiovascular disorders: therapeutic potential and obstacles. Nat Rev Cardiol 2019; 16:33-55. [PMID: 30177752 DOI: 10.1038/s41569-018-0074-0] [Citation(s) in RCA: 175] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A large body of evidence indicates that mitochondrial dysfunction has a major role in the pathogenesis of multiple cardiovascular disorders. Over the past 2 decades, extraordinary efforts have been focused on the development of agents that specifically target mitochondria for the treatment of cardiovascular disease. Despite such an intensive wave of investigation, no drugs specifically conceived to modulate mitochondrial functions are currently available for the clinical management of cardiovascular disease. In this Review, we discuss the therapeutic potential of targeting mitochondria in patients with cardiovascular disease, examine the obstacles that have restrained the development of mitochondria-targeting agents thus far, and identify strategies that might empower the full clinical potential of this approach.
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Affiliation(s)
- Massimo Bonora
- Ruth L. and David S. Gottesman Institute for Stem Cell, Regenerative Medicine Research, Department of Cell Biology and Stem Cell Institute, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Mariusz R Wieckowski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - David A Sinclair
- Department of Genetics, Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA, USA.,Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, New South Wales, Australia
| | - Guido Kroemer
- Equipe 11 labellisée Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,INSERM, U1138, Paris, France.,Université Paris Descartes/Paris V, Paris, France.,Université Pierre et Marie Curie, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.,Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Paolo Pinton
- Department of Morphology, Surgery, and Experimental Medicine, Section of Pathology, Oncology, and Experimental Biology, Laboratory for Technologies of Advanced Therapies, University of Ferrara, Ferrara, Italy. .,Maria Cecilia Hospital, GVM Care & Research, E.S. Health Science Foundation, Cotignola, Italy.
| | - Lorenzo Galluzzi
- Université Paris Descartes/Paris V, Paris, France. .,Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA. .,Sandra and Edward Meyer Cancer Center, New York, NY, USA.
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9
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Soliman SM. Factor Optimization Study to Develop and Validate a Reversed-Phase Thin-Layer Chromatography Method for the Determination of Trimetazidine Dihydrochloride and Its Reported Impurities in Pharmaceuticals. JPC-J PLANAR CHROMAT 2019. [DOI: 10.1556/1006.2019.32.4.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Suzan Mahmoud Soliman
- National Organization for Drug Control and Research (NOD-CAR), El-Lagousa 51 Wezaret El-Ziraa St, P.O. Box 12553, Post Code 35521, Giza, Egypt
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10
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Ramezani-Aliakbari F, Badavi M, Dianat M, Mard SA, Ahangarpour A. The Effects of Trimetazidine on QT-interval Prolongation and Cardiac Hypertrophy in Diabetic Rats. Arq Bras Cardiol 2018; 112:173-178. [PMID: 30570065 PMCID: PMC6371832 DOI: 10.5935/abc.20180248] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/23/2018] [Indexed: 12/28/2022] Open
Abstract
Background Trimetazidine (TMZ) is an anti-ischemic drug. In spite of its protective
effects on cardiovascular system, there is no scientific study on the
usefulness of TMZ treatment for prolonged QT interval and cardiac
hypertrophy induced by diabetes. Objectives To evaluate the effects of TMZ on QT interval prolongation and cardiac
hypertrophy in the diabetic rats. Methods Twenty-four male Sprague-Dawley rats (200-250 g) were randomly assigned into
three groups (n = 8) by simple random sampling method. Control (C), diabetic
(D), and diabetic administrated with TMZ at 10 mg/kg (T10). TMZ was
administrated for 8 weeks. The echocardiogram was recorded before isolating
the hearts and transfer to a Langendorff apparatus. Hemodynamic parameters,
QT and corrected QT interval (QTc) intervals, heart rate and antioxidant
enzymes were measured. The hypertrophy index was calculated. The results
were evaluated by one-way ANOVA and paired t-test using SPSS (version 16)
and p < 0.05 was regarded as significant. Results The diabetic rats significantly indicated increased hypertrophy, QT and QTc
intervals and decreased Left ventricular systolic pressure (LVSP), Left
ventricular developed pressure (LVDP), rate pressure product (RPP), Max
dp/dt, and min dp/dt (±dp/dt max), heart rate, superoxide dismutase
(SOD), glutathione peroxidase (GPx) and catalase in the heart. Treatment
with TMZ in the diabetic animals was significantly improved these parameters
in comparison to the untreated diabetic group. Conclusions TMZ improves QTc interval prolongation and cardiac hypertrophy in diabetes.
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Affiliation(s)
- Fatemeh Ramezani-Aliakbari
- Physiology Research Center and Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz - Iran
| | - Mohammad Badavi
- Physiology Research Center and Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz - Iran
| | - Mahin Dianat
- Physiology Research Center and Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz - Iran
| | - Seyed Ali Mard
- Physiology Research Center and Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz - Iran
| | - Akram Ahangarpour
- Physiology Research Center and Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz - Iran
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Fan Q, Niu Z, Ma L. Meta-analysis of trimetazidine treatment for cardiomyopathy. Biosci Rep 2018; 38:BSR20171583. [PMID: 29654171 PMCID: PMC5997798 DOI: 10.1042/bsr20171583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 04/01/2018] [Accepted: 04/09/2018] [Indexed: 11/17/2022] Open
Abstract
To explore the effect of trimetazidine (TMZ) in cardiomyopathy treatment. Literatures, related with TMZ treatment for cardiomyopathy, were retrieved between 1990 and February 2018 in the Pubmed, Embase, and Cochrane Library systems. Cardiopulmonary exercise testing [resting heart rate (RHR), peak heart rate (PHR), peak systolic blood pressure (PSBP), and resting systolic blood pressure (RSBP)] and echocardiographic results [left ventricular ejection fraction (LVEF), left ventricular end-systolic volume (LVESV), left ventricular end-diastolic volume (LVEDV), systolic wall thickening score index (SWTSI), left ventricular end-systolic diameter (LVESD), and left ventricular end-diastolic diameter (LVEDD)] were merged to detect the publication bias. Total 898 patients with cardiomyopathy were divided into two groups: TMZ-treated group (n=456) and control group (n=442). There was no difference in the improvement of cardiomyopathy between the TMZ and control group. No publication bias was shown for PHR (t= 0.9791, P=0.5067). There were significant differences in LVEF, LVESV, SWTSI, LVESD, and LVEDD between the TMZ group and the control group. TMZ-treatment significantly increased the level of LVEF (95% confidence interval (CI): 5.46-7.84, P<0.001), and reduced the level of LVESV (95% CI: -18.73 to -7.77, P<0.001), SWTSI (95% CI: -0.47 to -0.15, Z = -3.85, P=0.001), LVESD (95% CI: -1.09 to -0.08, P<0.001), and LVEDD (95% CI: -0.55 to -0.26, P=0.023). There was no publication bias except for LVEDV (t = 2.5456, P=0.0438). TMZ is effective for cardiomyopathy treatment and worth to popularize in clinic.
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Affiliation(s)
- Qian Fan
- Department of Cardiovasology, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao 266011, China
| | - Zhaozhuo Niu
- Department of Cardiac Surgery, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao 266011,China
| | - Liqing Ma
- Department of Geriatrics, Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao 266011, China
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Guarini G, Huqi A, Morrone D, Capozza PFG, Marzilli M. Trimetazidine and Other Metabolic Modifiers. Eur Cardiol 2018; 13:104-111. [PMID: 30697354 DOI: 10.15420/ecr.2018.15.2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Treatment goals for people with chronic angina should focus on the relief of symptoms and improving mortality rates so the patient can feel better and live longer. The traditional haemodynamic approach to ischaemic heart disease was based on the assumption that increasing oxygen supply and decreasing oxygen demand would improve symptoms. However, data from clinical trials, show that about one third of people continue to have angina despite a successful percutaneous coronary intervention and medical therapy. Moreover, several trials on chronic stable angina therapy and revascularisation have failed to show benefits in terms of primary outcome (survival, cardiovascular death, all-cause mortality), symptom relief or echocardiographic parameters. Failure to significantly improve quality of life and prognosis may be attributed in part to a limited understanding of ischaemic heart disease, by neglecting the fact that ischaemia is a metabolic disorder. Shifting cardiac metabolism from free fatty acids towards glucose is a promising approach for the treatment of patients with stable angina, independent of the underlying disease (macrovascular and/or microvascular disease). Cardiac metabolic modulators open the way to a greater understanding of ischaemic heart disease and its common clinical manifestations as an energetic disorder rather than an imbalance between the demand and supply of oxygen and metabolites.
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Affiliation(s)
- Giacinta Guarini
- Cardiovascular Medicine Division, Cardiothoracic and Vascular Department, University of Pisa Italy
| | - Alda Huqi
- Cardiovascular Medicine Division, Ospedale della Versilia, Lido di Camaiore Italy
| | - Doralisa Morrone
- Cardiovascular Medicine Division, Cardiothoracic and Vascular Department, University of Pisa Italy
| | | | - Mario Marzilli
- Cardiovascular Medicine Division, Cardiothoracic and Vascular Department, University of Pisa Italy
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Abstract
Heart failure (HF) is associated with metabolic changes that cause a progressive impairment of cardiac and skeletal muscle high-energy phosphate production. As a consequence of the impaired cardiac metabolism, other processes are activated in the failing heart that further exacerbate the progression of HF. The reduced production of high-energy phosphates has important implications for both systole and diastole in HF with both preserved and reduced left ventricular function. The aim of this review is to summarise the state-of-the-art on metabolic therapy in HF with a particular focus on trimetazidine. Metabolic agents optimise cardiac substrate metabolism without exerting negative haemodynamic effects. In particular, as studies with metabolic agents modulating cardiac metabolism have consistently demonstrated, this approach is effective in improving symptoms, functional capacity and prognosis in people with HF when added to optimal medical therapy. Therefore, the modulation of cardiac metabolism is an important therapeutic approach to the treatment of HF, especially in patients where it is of ischaemic or metabolic origin. Although further studies are needed, metabolic agents might be a new, effective strategy for the treatment of HF.
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Affiliation(s)
| | - Cristiana Vitale
- Department of Medical Sciences, IRCCS San Raffaele Pisana Rome, Italy
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Vitale C, Ilaria S, Rosano GM. Pharmacological Interventions Effective in Improving Exercise Capacity in Heart Failure. Card Fail Rev 2018; 4:25-27. [PMID: 29892472 DOI: 10.15420/cfr.2018:8:2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Heart failure (HF) is characterised by exercise intolerance, which substantially impairs quality of life (QOL) and prognosis. The aim of this review is to summarise the state of the art on pharmacological interventions that are able to improve exercise capacity in HF. Ivabradine, trimetazidine and intravenous iron are the only drugs included in the European Society of Cardiology HF guidelines that have consistently been shown to positively affect functional capacity in HF. The beneficial effects on HF symptoms, physical performance and QOL using these pharmacological approaches are described.
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Affiliation(s)
- Cristiana Vitale
- Centre for Clinical and Basic Research, Department of Medical Sciences, IRCCS San Raffaele Pisana Rome, Italy
| | - Spoletini Ilaria
- Centre for Clinical and Basic Research, Department of Medical Sciences, IRCCS San Raffaele Pisana Rome, Italy
| | - Giuseppe Mc Rosano
- Centre for Clinical and Basic Research, Department of Medical Sciences, IRCCS San Raffaele Pisana Rome, Italy
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15
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Molinari F, Pin F, Gorini S, Chiandotto S, Pontecorvo L, Penna F, Rizzuto E, Pisu S, Musarò A, Costelli P, Rosano G, Ferraro E. The mitochondrial metabolic reprogramming agent trimetazidine as an 'exercise mimetic' in cachectic C26-bearing mice. J Cachexia Sarcopenia Muscle 2017; 8:954-973. [PMID: 29130633 PMCID: PMC5700442 DOI: 10.1002/jcsm.12226] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 06/07/2017] [Accepted: 07/05/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Cancer cachexia is characterized by muscle depletion and exercise intolerance caused by an imbalance between protein synthesis and degradation and by impaired myogenesis. Myofibre metabolic efficiency is crucial so as to assure optimal muscle function. Some drugs are able to reprogram cell metabolism and, in some cases, to enhance metabolic efficiency. Based on these premises, we chose to investigate the ability of the metabolic modulator trimetazidine (TMZ) to counteract skeletal muscle dysfunctions and wasting occurring in cancer cachexia. METHODS For this purpose, we used mice bearing the C26 colon carcinoma as a model of cancer cachexia. Mice received 5 mg/kg TMZ (i.p.) once a day for 12 consecutive days. A forelimb grip strength test was performed and tibialis anterior, and gastrocnemius muscles were excised for analysis. Ex vivo measurement of skeletal muscle contractile properties was also performed. RESULTS Our data showed that TMZ induces some effects typically achieved through exercise, among which is grip strength increase, an enhanced fast-to slow myofibre phenotype shift, reduced glycaemia, PGC1α up-regulation, oxidative metabolism, and mitochondrial biogenesis. TMZ also partially restores the myofibre cross-sectional area in C26-bearing mice, while modulation of autophagy and apoptosis were excluded as mediators of TMZ effects. CONCLUSIONS In conclusion, our data show that TMZ acts like an 'exercise mimetic' and is able to enhance some mechanisms of adaptation to stress in cancer cachexia. This makes the modulation of the metabolism, and in particular TMZ, a suitable candidate for a therapeutic rehabilitative protocol design, particularly considering that TMZ has already been approved for clinical use.
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Affiliation(s)
- Francesca Molinari
- Laboratory of Pathophysiology of Cachexia and Metabolism of Skeletal Muscle, IRCCS San Raffaele Pisana, Via di Val Cannuta, 00166, Rome, Italy
| | - Fabrizio Pin
- Department of Clinical and Biological Sciences, IIM, University of Turin, Corso Raffaello, 10125, Turin, Italy
| | - Stefania Gorini
- Laboratory of Pathophysiology of Cachexia and Metabolism of Skeletal Muscle, IRCCS San Raffaele Pisana, Via di Val Cannuta, 00166, Rome, Italy
| | - Sergio Chiandotto
- DMCM Department of Molecular and Clinical Medicine, c/o Department of Surgery 'Pietro Valdoni', Sapienza University of Rome, Via Scarpa, 00161, Rome, Italy
| | - Laura Pontecorvo
- Laboratory of Pathophysiology of Cachexia and Metabolism of Skeletal Muscle, IRCCS San Raffaele Pisana, Via di Val Cannuta, 00166, Rome, Italy
| | - Fabio Penna
- Department of Clinical and Biological Sciences, IIM, University of Turin, Corso Raffaello, 10125, Turin, Italy
| | - Emanuele Rizzuto
- Department of Mechanical and Aerospace Engineering, Sapienza University of Rome, Via Eudossiana, 00184, Rome, Italy
| | - Simona Pisu
- Institute Pasteur Cenci-Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, IIM, Sapienza University of Rome, Via Scarpa, 00161, Rome, Italy
| | - Antonio Musarò
- Institute Pasteur Cenci-Bolognetti, DAHFMO-Unit of Histology and Medical Embryology, IIM, Sapienza University of Rome, Via Scarpa, 00161, Rome, Italy.,Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 00161, Rome, Italy
| | - Paola Costelli
- Department of Clinical and Biological Sciences, IIM, University of Turin, Corso Raffaello, 10125, Turin, Italy
| | - Giuseppe Rosano
- Laboratory of Pathophysiology of Cachexia and Metabolism of Skeletal Muscle, IRCCS San Raffaele Pisana, Via di Val Cannuta, 00166, Rome, Italy.,Cardiovascular and Cell Sciences Institute, St George's University of London, Cranmer Terrace London, SW17, UK
| | - Elisabetta Ferraro
- Laboratory of Pathophysiology of Cachexia and Metabolism of Skeletal Muscle, IRCCS San Raffaele Pisana, Via di Val Cannuta, 00166, Rome, Italy
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Zou H, Zhu XX, Ding YH, Jin QY, Qian LY, Huang DS, Cen XJ. Trimetazidine in conditions other than coronary disease, old drug, new tricks? Int J Cardiol 2017; 234:1-6. [DOI: 10.1016/j.ijcard.2017.02.083] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 01/06/2017] [Accepted: 02/20/2017] [Indexed: 12/14/2022]
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Dalal JJ, Mishra S. Modulation of myocardial energetics: An important category of agents in the multimodal treatment of coronary artery disease and heart failure. Indian Heart J 2017. [PMID: 28648439 PMCID: PMC5485408 DOI: 10.1016/j.ihj.2017.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
The combined and relative contribution of glucose and fatty acid oxidation generates myocardial energy, which regulates the cardiac function and efficiency. Any dysregulation in this metabolic homeostasis can adversely affect the function of heart and contribute to cardiac conditions such as angina and heart failure. Metabolic agents ameliorate this internal metabolic anomaly, by shifting the energy production pathway from free fatty acids to glucose, resulting in a better performance of the heart. Metabolic therapy is relatively a new modality, which functions through optimization of cardiac substrate metabolism. Among the metabolic therapies, trimetazidine and ranolazine are the agents presently available in India. In the present review, we would like to present the metabolic perspective of pathophysiology of coronary artery disease and heart failure, and metabolic therapy by using trimetazidine and ranolazine.
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Affiliation(s)
| | - Sundeep Mishra
- Department of Cardiology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110029, India
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18
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Abstract
BACKGROUND Patients with stable angina not controlled by monotherapy with nitrates, beta blockers, or calcium channel blockers are often treated with combinations of these drugs. There may be adverse effects from, or contraindications to, the use of combinations. In low risk groups, medical treatment appears to be as good an option as percutaneous transluminal coronary angioplasty in terms of averting myocardial infarction, death, or subsequent revascularization. Revascularization procedures are too costly or inaccessible for many patients in developing countries therefore effective and safe medical treatment is needed. Trimetazidine is a less well known anti-anginal drug that controls myocardial ischaemia through intracellular metabolic changes. Trimetazidine has been reported, in some studies, to be better tolerated than combined anti-anginal therapy; however it is not considered in published guidelines. OBJECTIVES To determine the efficacy and tolerability of trimetazidine in patients with stable angina. SEARCH METHODS We searched The Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE, LILACS and SCISEARCH, without language restriction, from inception to October 2003. Experts in the field were contacted to locate unpublished studies. SELECTION CRITERIA Randomised studies comparing trimetazidine with placebo, or other anti-angina drug in adults with stable angina. DATA COLLECTION AND ANALYSIS Two reviewers independently applied the inclusion criteria, assessed trial quality and extracted data. MAIN RESULTS Twenty-three studies (1378 patients) met the inclusion criteria. There was a paucity of information about mortality, cardiovascular events and quality of life. Trimetazidine, compared with placebo, reduced the number of weekly angina attacks ( mean difference -1.44, 95% CI -2.10 to -0.79; P < 0.0001), reduced weekly nitroglycerin tablet consumption (95% CI -1.47 to -2.20, -0.73; P < 0.0001) and improved exercise time to 1 mm segment depression (P = 0.0002). Four small trials (263 patients) compared trimetazidine against other anti-anginal agents. One favoured trimetazidine over nitrates. Three tended to favour alternative regimens but with confidence intervals consistent with both major increases and decreases in frequency of angina episodes. In this subgroup, adverse events were considered in 5 trials (448 patients) and totals of 2 versus 12 drop outs due to adverse events were observed in the trimetazidine and alternative regimens respectively, but this was mostly driven by a single trial. AUTHORS' CONCLUSIONS Trimetazidine is effective in the treatment of stable angina compared with placebo, alone or combined with conventional anti-anginal agents. Trimetazidine may result in fewer dropouts due to adverse events. Large, long term trials comparing trimetazidine with other anti-anginal drugs assessing clinically relevant important outcomes are required to establish its role in clinical management.
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Affiliation(s)
- Agustín Ciapponi
- Institute for Clinical Effectiveness and Health Policy (IECS‐CONICET)Argentine Cochrane CentreDr. Emilio Ravignani 2024Buenos AiresCapital FederalArgentinaC1414CPV
| | - Rudolf Pizarro
- Hospital Italiano de Buenos AiresCardiac ServicesGascón 450Buenos AiresArgentina
| | - Jeff Harrison
- Faculty of Medical and Health SciencesSchool of PharmacyBuidling 50485 Park RoadGraftonAucklandNew Zealand
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19
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Abstract
All of the following traditional agents for the management of stable angina pectoris include the symptomatic treatment with heart rate–lowering agents such as β-blockers or non-dihydropyridine Ca-channel blockers, or ivabradine—the first selective sinus node If channel inhibitor—vasodilatators and preventive use of angiotensin-converting enzyme inhibitors affect the parameters of circulation directly. Trimetazidine exerts its anti-ischemic action by modulating cardiac metabolism without altering the hemodynamic functions, therefore represents an excellent complementary potential to the conventional angina treatment. It has a beneficial effect on the inflammatory profile and endothelial function and shows diverse benefits by reducing the number and the intensity of angina attacks and improving the clinical signs and symptoms of myocardial ischemia given as monotherapy as well as combined with other antianginal agents. Patients undergoing coronary revascularization procedures or with comorbid left ventricular dysfunction and diabetes mellitus also benefit from the protective effects of trimetazidine.
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20
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Guarini G, Huqi A, Morrone D, Marzilli M. Pharmacological Agents Targeting Myocardial Metabolism for the Management of Chronic Stable Angina : an Update. Cardiovasc Drugs Ther 2016; 30:379-391. [DOI: 10.1007/s10557-016-6677-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Ponikowski P, Voors AA, Anker SD, Bueno H, Cleland JGF, Coats AJS, Falk V, González-Juanatey JR, Harjola VP, Jankowska EA, Jessup M, Linde C, Nihoyannopoulos P, Parissis JT, Pieske B, Riley JP, Rosano GMC, Ruilope LM, Ruschitzka F, Rutten FH, van der Meer P. 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure. Eur Heart J 2016. [DOI: 10.1093/eurheartj/ehw128 order by 1-- #] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
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22
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Ponikowski P, Voors AA, Anker SD, Bueno H, Cleland JGF, Coats AJS, Falk V, González-Juanatey JR, Harjola VP, Jankowska EA, Jessup M, Linde C, Nihoyannopoulos P, Parissis JT, Pieske B, Riley JP, Rosano GMC, Ruilope LM, Ruschitzka F, Rutten FH, van der Meer P. 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure. Eur Heart J 2016. [DOI: 10.1093/eurheartj/ehw128 order by 8029-- awyx] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
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23
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2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure. Eur Heart J 2016. [DOI: 10.1093/eurheartj/ehw128 order by 1-- -] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
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24
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Ponikowski P, Voors AA, Anker SD, Bueno H, Cleland JGF, Coats AJS, Falk V, González-Juanatey JR, Harjola VP, Jankowska EA, Jessup M, Linde C, Nihoyannopoulos P, Parissis JT, Pieske B, Riley JP, Rosano GMC, Ruilope LM, Ruschitzka F, Rutten FH, van der Meer P. 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure: The Task Force for the diagnosis and treatment of acute and chronic heart failure of the European Society of Cardiology (ESC)Developed with the special contribution of the Heart Failure Association (HFA) of the ESC. Eur Heart J 2016; 37:2129-2200. [PMID: 27206819 DOI: 10.1093/eurheartj/ehw128] [Citation(s) in RCA: 8931] [Impact Index Per Article: 1116.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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25
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Ponikowski P, Voors AA, Anker SD, Bueno H, Cleland JGF, Coats AJS, Falk V, González-Juanatey JR, Harjola VP, Jankowska EA, Jessup M, Linde C, Nihoyannopoulos P, Parissis JT, Pieske B, Riley JP, Rosano GMC, Ruilope LM, Ruschitzka F, Rutten FH, van der Meer P. 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure. Eur Heart J 2016. [DOI: 10.1093/eurheartj/ehw128 and 1880=1880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
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26
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Ponikowski P, Voors AA, Anker SD, Bueno H, Cleland JGF, Coats AJS, Falk V, González-Juanatey JR, Harjola VP, Jankowska EA, Jessup M, Linde C, Nihoyannopoulos P, Parissis JT, Pieske B, Riley JP, Rosano GMC, Ruilope LM, Ruschitzka F, Rutten FH, van der Meer P. 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure. Eur Heart J 2016. [DOI: 10.1093/eurheartj/ehw128 order by 8029-- #] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
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27
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Ponikowski P, Voors AA, Anker SD, Bueno H, Cleland JGF, Coats AJS, Falk V, González-Juanatey JR, Harjola VP, Jankowska EA, Jessup M, Linde C, Nihoyannopoulos P, Parissis JT, Pieske B, Riley JP, Rosano GMC, Ruilope LM, Ruschitzka F, Rutten FH, van der Meer P. 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure. Eur Heart J 2016. [DOI: 10.1093/eurheartj/ehw128 order by 8029-- -] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
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Ponikowski P, Voors AA, Anker SD, Bueno H, Cleland JGF, Coats AJS, Falk V, González-Juanatey JR, Harjola VP, Jankowska EA, Jessup M, Linde C, Nihoyannopoulos P, Parissis JT, Pieske B, Riley JP, Rosano GMC, Ruilope LM, Ruschitzka F, Rutten FH, van der Meer P. 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure. Eur Heart J 2016. [DOI: 10.1093/eurheartj/ehw128 order by 1-- gadu] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
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29
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Ponikowski P, Voors AA, Anker SD, Bueno H, Cleland JGF, Coats AJS, Falk V, González-Juanatey JR, Harjola VP, Jankowska EA, Jessup M, Linde C, Nihoyannopoulos P, Parissis JT, Pieske B, Riley JP, Rosano GMC, Ruilope LM, Ruschitzka F, Rutten FH, van der Meer P. 2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure. Eur J Heart Fail 2016; 18:891-975. [DOI: 10.1002/ejhf.592] [Citation(s) in RCA: 4631] [Impact Index Per Article: 578.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Effects of sustained-release trimetazidine on chronically dysfunctional myocardium of ischemic dilated cardiomyopathy - Six months follow-up result. Indian Heart J 2016; 68:809-815. [PMID: 27931552 PMCID: PMC5143824 DOI: 10.1016/j.ihj.2016.03.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 02/15/2016] [Accepted: 03/22/2016] [Indexed: 11/24/2022] Open
Abstract
Background Ischemic cardiomyopathy is a growing burden in third world countries. So far, benefits of trimetazidine in this group of patients have been suggested by clinical trials mainly conducted in Europe. We evaluated the effect of trimetazidine on ischemic dilated cardiomyopathy in our population. Methods and results 98 patients (aged 58.5 ± 9.2 years), admitted with decompensated heart failure with previous history of MI and/or documentation of significant CAD with previous CAG, were chosen for the study. Patients were randomized into two groups – one provided with trimetazidine 35 mg sustained released tablet, twice daily and the other with a placebo, along with other conventional medications. Patients were included if they had dilated LV (LVIDd > 57 mm) and left ventricular ejection fraction (LVEF) ≤40%. After 6 months, significantly higher number of patients in trimetazidine group were in NYHA class I (22% vs. 8%, p = 0.03) and class II (56% vs. 34%, p = 0.01); higher number of patients in placebo group were in NYHA class III class IV. Anginal episodes and use of sublingual nitrate per week were significantly lower in the trimetazidine group. Left ventricular diastolic dimension (59.7 ± 5.2 vs. 65.1 ± 6.1, p = 0.001) was significantly different in the two groups as was the increase of LVEF (11% vs. 5.6%, p = 0.001). Hospitalization for worsening heart failure was significantly lower in trimetazidine group (13 vs. 22, p = 0.047). Conclusion Trimetazidine seems to be beneficial in patients with ischemic dilated cardiomyopathy in South Asian population and larger scale study with extended follow-up is needed.
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Ambrosio G, Tamargo J, Grant PJ. Non-haemodynamic anti-anginal agents in the management of patients with stable coronary artery disease and diabetes: A review of the evidence. Diab Vasc Dis Res 2016; 13:98-112. [PMID: 26873904 DOI: 10.1177/1479164115609028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Patients with coronary artery disease and concomitant diabetes mellitus tend to have more extensive vessel disease than non-diabetes mellitus coronary artery disease patients, are at high risk of adverse cardiovascular events and suffer from a great anginal burden. Very few trials have specifically addressed the issue of optimal anti-anginal therapy in coronary artery disease patients who also have diabetes mellitus. Among 'classical' anti-anginal agents, recent guidelines do not specifically recommend any molecule over others; however, European Society of Cardiology guidelines acknowledge that favourable data in patients with concomitant diabetes mellitus and coronary artery disease are available for trimetazidine and ranolazine, two anti-anginal agents with a non-haemodynamic mechanism of action. The aim of this article is to review available evidence supporting the anti-anginal efficacy of these two drugs in the difficult-to-treat population of diabetes mellitus patients, including their effects on glycated haemoglobin (HbA1c), a measure of medium-term glycaemic control. Although direct head-to-head comparisons have not been performed, available evidence favours ranolazine as an effective anti-anginal agent over trimetazidine in this population. In addition, ranolazine lowers HbA1c, indicating that it may improve glycaemic control in patients with diabetes mellitus. Conversely, scanty data are available on the metabolic effects of trimetazidine in this cohort of patients. Thus, ranolazine may represent a valuable therapeutic option in stable coronary artery disease patients with diabetes mellitus.
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Affiliation(s)
- Giuseppe Ambrosio
- Division of Cardiology, School of Medicine, University of Perugia, Perugia, Italy
| | - Juan Tamargo
- Department of Pharmacology, School of Medicine, Universidad Complutense de Madrid, Madrid, Spain
| | - Peter J Grant
- Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
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Milinković I, Rosano G, Lopatin Y, Seferović PM. The Role of Ivabradine and Trimetazidine in the New ESC HF Guidelines. Card Fail Rev 2016; 2:123-129. [PMID: 28785466 DOI: 10.15420/cfr.2016:13:1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The prevalence of heart failure (HF) is increasing, representing a major cause of death and disability, and a growing financial burden on healthcare systems. Despite the use of effective treatments with both drugs and devices, mortality remains high. There is therefore a need for new and effective therapeutic agents. Ivabradine is a specific sinus node inhibiting agent that was approved in 2005 by the European Medicines Agency, alone or in combination with a beta-blocker. Trimetazidine is a cytoprotective, anti-ischaemic agent established in the treatment of angina pectoris. In the 2012 European Society of Cardiology (ESC) guidelines for diagnosis and treatment of HF, ivabradine was recommended in symptomatic HF patients who are in sinus rhythm with left ventricular ejection fraction ≤35 % and heart rate higher than 70 beats per minute, despite optimal medical therapy, including maximally tolerated dose of beta-blocker. The role of trimetazidine in this setting was not mentioned. In the 2016 ESC guidelines, recommendations for ivabradine are unchanged but trimetazidine is included for the treatment of angina pectoris with HF. This article discusses the need for new therapeutic options in HF and reviews clinical evidence in support of these two therapeutic options.
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Affiliation(s)
- Ivan Milinković
- Department of Cardiology,Clinical Centre of Serbia, Belgrade, Serbia
| | - Giuseppe Rosano
- IRCCS San Raffaele,Rome, Italy.,Cardiovascular and Cell Sciences Institute,St George's University of London, London, UK
| | - Yuri Lopatin
- Volgograd Medical University,Cardiology Centre, Volgograd, Russia
| | - Petar M Seferović
- Department of Cardiology,Clinical Centre of Serbia, Belgrade, Serbia
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Rationale and benefits of trimetazidine by acting on cardiac metabolism in heart failure. Int J Cardiol 2016; 203:909-15. [DOI: 10.1016/j.ijcard.2015.11.060] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 11/04/2015] [Accepted: 11/06/2015] [Indexed: 11/20/2022]
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Abstract
Activation of the neuro-hormonal system is a pathophysiological consequence of heart failure. Neuro-hormonal activation promotes metabolic changes, such as insulin resistance, and determines an increased use of non-carbohydrate substrates for energy production. Fasting blood ketone bodies as well as fat oxidation are increased in patients with heart failure, yielding a state of metabolic inefficiency. The net result is additional depletion of myocardial adenosine triphosphate, phosphocreatine and creatine kinase levels with further decreased efficiency of mechanical work. In this context, manipulation of cardiac energy metabolism by modification of substrate use by the failing heart has produced positive clinical results. The results of current research support the concept that shifting the energy substrate preference away from fatty acid metabolism and towards glucose metabolism could be an effective adjunctive treatment in patients with heart failure. The additional use of drugs able to partially inhibit fatty acids oxidation in patients with heart failure may therefore yield a significant protective effect for clinical symptoms and cardiac function improvement, and simultaneously ameliorate left ventricular remodelling. Certainly, to clarify the exact therapeutic role of metabolic therapy in heart failure, a large multicentre, randomised controlled trial should be performed.
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Rosano GM, Vitale C, Spoletini I. Metabolic approach to heart failure: The role of metabolic modulators. Egypt Heart J 2015. [DOI: 10.1016/j.ehj.2015.03.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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Chrusciel P, Rysz J, Banach M. Defining the role of trimetazidine in the treatment of cardiovascular disorders: some insights on its role in heart failure and peripheral artery disease. Drugs 2015; 74:971-80. [PMID: 24902800 PMCID: PMC4061463 DOI: 10.1007/s40265-014-0233-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Trimetazidine is a cytoprotective drug whose cardiovascular effectiveness, especially in patients with stable ischemic heart disease, has been the source of much controversy in recent years; some have gone so far as to treat the medication as a ‘placebo drug’ whose new side effects, such as Parkinsonian symptoms, outweigh its benefits. This article is an attempt to present the recent key studies, including meta-analyses, on the use of trimetazidine in chronic heart failure, also in patients with diabetes mellitus and arrhythmia, as well as in peripheral artery disease. This paper also includes the most recent European Society of Cardiology guidelines, including those of 2013, on the use of trimetazidine in cardiovascular disease.
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Affiliation(s)
- Piotr Chrusciel
- Department of Hypertension, Chair of Nephrology and Hypertension, Medical University of Lodz, Zeromskiego 113, 90-549 Lodz, Poland
| | - Jacek Rysz
- Department of Nephrology, Hypertension, and Family Medicine, Chair of Nephrology and Hypertension, Medical University of Lodz, Lodz, Poland
| | - Maciej Banach
- Department of Hypertension, Chair of Nephrology and Hypertension, Medical University of Lodz, Zeromskiego 113, 90-549 Lodz, Poland
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Ryan JJ, Archer SL. The right ventricle in pulmonary arterial hypertension: disorders of metabolism, angiogenesis and adrenergic signaling in right ventricular failure. Circ Res 2014; 115:176-88. [PMID: 24951766 DOI: 10.1161/circresaha.113.301129] [Citation(s) in RCA: 319] [Impact Index Per Article: 31.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The right ventricle (RV) is the major determinant of functional state and prognosis in pulmonary arterial hypertension. RV hypertrophy (RVH) triggered by pressure overload is initially compensatory but often leads to RV failure. Despite similar RV afterload and mass some patients develop adaptive RVH (concentric with retained RV function), while others develop maladaptive RVH, characterized by dilatation, fibrosis, and RV failure. The differentiation of adaptive versus maladaptive RVH is imprecise, but adaptive RVH is associated with better functional capacity and survival. At the molecular level, maladaptive RVH displays greater impairment of angiogenesis, adrenergic signaling, and metabolism than adaptive RVH, and these derangements often involve the left ventricle. Clinically, maladaptive RVH is characterized by increased N-terminal pro-brain natriuretic peptide levels, troponin release, elevated catecholamine levels, RV dilatation, and late gadolinium enhancement on MRI, increased (18)fluorodeoxyglucose uptake on positron emission tomography, and QTc prolongation on the ECG. In maladaptive RVH there is reduced inotrope responsiveness because of G-protein receptor kinase-mediated downregulation, desensitization, and uncoupling of β-adrenoreceptors. RV ischemia may result from capillary rarefaction or decreased right coronary artery perfusion pressure. Maladaptive RVH shares metabolic abnormalities with cancer including aerobic glycolysis (resulting from a forkhead box protein O1-mediated transcriptional upregulation of pyruvate dehydrogenase kinase), and glutaminolysis (reflecting ischemia-induced cMyc activation). Augmentation of glucose oxidation is beneficial in experimental RVH and can be achieved by inhibition of pyruvate dehydrogenase kinase, fatty acid oxidation, or glutaminolysis. Therapeutic targets in RV failure include chamber-specific abnormalities of metabolism, angiogenesis, adrenergic signaling, and phosphodiesterase-5 expression. The ability to restore RV function in experimental models challenges the dogma that RV failure is irreversible without regression of pulmonary vascular disease.
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Affiliation(s)
- John J Ryan
- From the Division of Cardiovascular Medicine, Department of Medicine, University of Utah, Salt Lake City (J.J.R.); and Department of Medicine, Queen's University, Kingston, Ontario, Canada (S.L.A.)
| | - Stephen L Archer
- From the Division of Cardiovascular Medicine, Department of Medicine, University of Utah, Salt Lake City (J.J.R.); and Department of Medicine, Queen's University, Kingston, Ontario, Canada (S.L.A.).
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Zhou X, Chen J. Is treatment with trimetazidine beneficial in patients with chronic heart failure? PLoS One 2014; 9:e94660. [PMID: 24797235 PMCID: PMC4010408 DOI: 10.1371/journal.pone.0094660] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Accepted: 03/18/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Whether additional benefit can be achieved with the use of trimetazidine (TMZ) in patients with chronic heart failure (CHF) remains controversial. We therefore performed a meta-analysis of randomized controlled trials (RCTs) to evaluate the effects of TMZ treatment in CHF patients. METHODS We searched PubMed, EMBASE, and Cochrane databases through October 2013 and included 19 RCTs involving 994 CHF patients who underwent TMZ or placebo treatment. Risk ratio (RR) and weighted mean differences (WMD) were calculated using fixed or random effects models. RESULTS TMZ therapy was associated with considerable improvement in left ventricular ejection fraction (WMD: 7.29%, 95% CI: 6.49 to 8.09, p<0.01) and New York Heart Association classification (WMD: -0.55, 95% CI: -0.81 to -0.28, p<0.01). Moreover, treatment with TMZ also resulted in significant decrease in left ventricular end-systolic volume (WMD: -17.09 ml, 95% CI: -20.15 to -14.04, p<0.01), left ventricular end-diastolic volume (WMD: -11.24 ml, 95% CI: -14.06 to -8.42, p<0.01), hospitalization for cardiac causes (RR: 0.43, 95% CI: 0.21 to 0.91, p = 0.03), B-type natriuretic peptide (BNP; WMD: -157.08 pg/ml, 95% CI: -176.55 to -137.62, p<0.01) and C-reactive protein (CRP; WMD: -1.86 mg/l, 95% CI: -2.81 to -0.90, p<0.01). However, there were no significant differences in exercise duration and all-cause mortality between patients treated with TMZ and placebo. CONCLUSIONS TMZ treatment in CHF patients may improve clinical symptoms and cardiac function, reduce hospitalization for cardiac causes, and decrease serum levels of BNP and CRP.
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Affiliation(s)
- Xiang Zhou
- Department of Cardiology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
- * E-mail:
| | - Jianchang Chen
- Department of Cardiology, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China
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Tsioufis K, Andrikopoulos G, Manolis A. Trimetazidine and cardioprotection: facts and perspectives. Angiology 2014; 66:204-10. [PMID: 24719262 DOI: 10.1177/0003319714530040] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Trimetazidine (TMZ) is a metabolic agent used in cardiology for more than 40 years. Several studies assessed the cardioprotective effects of TMZ in patients with chronic coronary heart disease (CHD) as well as in patients with heart failure (HF). In light of the inclusion of TMZ in the current guidelines on the management of stable CHD, we reviewed the published literature on TMZ, focusing mainly its effects on patients with stable angina and HF. According to the published literature, there is sufficient evidence to support the addition of this agent in the treatment of symptomatic patients with stable angina.
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Winter JL, Castro PF, Quintana JC, Altamirano R, Enriquez A, Verdejo HE, Jalil JE, Mellado R, Concepción R, Sepúlveda P, Rossel V, Sepúlveda L, Chiong M, García L, Lavandero S. Effects of trimetazidine in nonischemic heart failure: a randomized study. J Card Fail 2014; 20:149-54. [PMID: 24412523 DOI: 10.1016/j.cardfail.2014.01.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 12/05/2013] [Accepted: 01/03/2014] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Heart failure (HF) is associated with changes in myocardial metabolism that lead to impairment of contractile function. Trimetazidine (TMZ) modulates cardiac energetic efficiency and improves outcomes in ischemic heart disease. We evaluated the effects of TMZ on left ventricular ejection fraction (LVEF), cardiac metabolism, exercise capacity, O2 uptake, and quality of life in patients with nonischemic HF. METHODS AND RESULTS Sixty patients with stable nonischemic HF under optimal medical therapy were included in this randomized double-blind study. Patients were randomized to TMZ (35 mg orally twice a day) or placebo for 6 months. LVEF, 6-minute walk test (6MWT), maximum O2 uptake in cardiopulmonary exercise test, different markers of metabolism, oxidative stress, and endothelial function, and quality of life were assessed at baseline and after TMZ treatment. Left ventricular peak glucose uptake was evaluated with the use of the maximum standardized uptake value (SUV) by 18-fluorodeoxyglucose positron emission tomography ((18)FDG-PET). Etiology was idiopathic in 85% and hypertensive in 15%. Both groups were similar in age, functional class, LVEF, and levels of N-terminal pro-B-type natriuretic peptide at baseline. After 6 months of TMZ treatment, no changes were observed in LVEF (31 ± 10% vs 34 ± 8%; P = .8), 6MWT (443 ± 25 m vs 506 ± 79 m; P = .03), maximum O2 uptake (19.1 ± 5.0 mL kg(-1) min(-1) vs 23.0 ± 7.2 mL kg(-1) min(-1); P = .11), functional class (percentages of patients in functional classes I/II/III/IV 10/3753/0 vs 7/40/50/3; P = .14), or quality of life (32 ± 26 points vs 24 ± 18 points; P = .25) in TMZ versus placebo, respectively. In the subgroup of patients evaluated with (18)FDG-PET, no significant differences were observed in SUV between both groups (7.0 ± 3.6 vs 8.2 ± 3.4 respectively; P = .47). CONCLUSIONS In patients with nonischemic HF, the addition of TMZ to optimal medical treatment does not result in significant changes of LVEF, exercise capacity, O2 uptake, or quality of life.
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Affiliation(s)
- José Luis Winter
- Advanced Center for Chonic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile; División de Enfermedades Cardiovasculares and Departamento de Medicina Nuclear, Facultad Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo F Castro
- Advanced Center for Chonic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile; División de Enfermedades Cardiovasculares and Departamento de Medicina Nuclear, Facultad Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Juan Carlos Quintana
- Advanced Center for Chonic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile; División de Enfermedades Cardiovasculares and Departamento de Medicina Nuclear, Facultad Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Rodrigo Altamirano
- Advanced Center for Chonic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile; División de Enfermedades Cardiovasculares and Departamento de Medicina Nuclear, Facultad Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Andres Enriquez
- Advanced Center for Chonic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile; División de Enfermedades Cardiovasculares and Departamento de Medicina Nuclear, Facultad Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Hugo E Verdejo
- Advanced Center for Chonic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile; División de Enfermedades Cardiovasculares and Departamento de Medicina Nuclear, Facultad Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jorge E Jalil
- División de Enfermedades Cardiovasculares and Departamento de Medicina Nuclear, Facultad Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Rosemarie Mellado
- Facultad Química, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Pablo Sepúlveda
- Hospital San Juan de Dios, Facultad Medicina, Santiago, Chile
| | - Victor Rossel
- Hospital Salvador, Facultad Medicina, Santiago, Chile
| | | | - Mario Chiong
- Advanced Center for Chonic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile; Centro Estudios Moleculares de la Célula, Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Universidad de Chile, Santiago, Chile
| | - Lorena García
- Advanced Center for Chonic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile; Centro Estudios Moleculares de la Célula, Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Universidad de Chile, Santiago, Chile
| | - Sergio Lavandero
- Advanced Center for Chonic Diseases, Universidad de Chile and Pontificia Universidad Católica de Chile, Santiago, Chile; Centro Estudios Moleculares de la Célula, Facultad Ciencias Químicas y Farmacéuticas and Facultad Medicina, Universidad de Chile, Santiago, Chile; Cardiology Division, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas
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Vitale C, Spoletini I, Malorni W, Perrone-Filardi P, Volterrani M, Rosano GM. Efficacy of trimetazidine on functional capacity in symptomatic patients with stable exertional angina — The VASCO-angina study. Int J Cardiol 2013. [DOI: 10.1016/j.ijcard.2012.11.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Zhang L, Lu Y, Jiang H, Zhang L, Sun A, Zou Y, Ge J. Additional use of trimetazidine in patients with chronic heart failure: a meta-analysis. J Am Coll Cardiol 2012; 59:913-22. [PMID: 22381427 DOI: 10.1016/j.jacc.2011.11.027] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 10/18/2011] [Accepted: 11/11/2011] [Indexed: 11/19/2022]
Abstract
OBJECTIVES The aim of this meta-analysis was to evaluate the effects of additional trimetazidine (TMZ) treatment on patients with chronic heart failure (CHF). BACKGROUND Conflicting results currently exist on the clinical use of TMZ in CHF patients. METHODS PubMed, MEDLINE, EMBASE, and EBM Reviews databases were searched through November 2010 for randomized controlled trials (RCTs) assessing TMZ treatment in CHF patients. Data concerning the study design, patient characteristics, and outcomes were extracted. Risk ratio (RR) and weighted mean differences (WMD) were calculated using fixed or random effects models. RESULTS Sixteen RCTs involving 884 CHF patients were included. Hospitalization for cardiac causes (RR: 0.43, p = 0.03), but not all-cause mortality (RR: 0.47, p = 0.27), was reduced by TMZ treatment. Moreover, TMZ therapy was associated not only with the increase of left ventricular ejection fraction (WMD: 6.46%, p < 0.0001) and total exercise time (WMD: 63.75 seconds, p < 0.0001), but also with the decrease of New York Heart Association functional class (WMD: -0.57, p = 0.0003), left ventricular end-systolic diameter (WMD: -6.67 mm, p < 0.0001), left ventricular end-diastolic diameter (WMD: -6.05 mm, p < 0.0001), and B-type natriuretic peptide (WMD: -203.40 pg/ml, p = 0.0002). CONCLUSIONS Additional use of TMZ in CHF patients may decrease hospitalization for cardiac causes, improve clinical symptoms and cardiac function, and simultaneously ameliorate left ventricular remodeling.
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Affiliation(s)
- Lei Zhang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital of Fudan University, Shanghai, China
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Frank A, Bonney M, Bonney S, Weitzel L, Koeppen M, Eckle T. Myocardial ischemia reperfusion injury: from basic science to clinical bedside. Semin Cardiothorac Vasc Anesth 2012; 16:123-32. [PMID: 22368166 DOI: 10.1177/1089253211436350] [Citation(s) in RCA: 332] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Myocardial ischemia reperfusion injury contributes to adverse cardiovascular outcomes after myocardial ischemia, cardiac surgery or circulatory arrest. Primarily, no blood flow to the heart causes an imbalance between oxygen demand and supply, named ischemia (from the Greek isch, restriction; and haema, blood), resulting in damage or dysfunction of the cardiac tissue. Instinctively, early and fast restoration of blood flow has been established to be the treatment of choice to prevent further tissue injury. Indeed, the use of thrombolytic therapy or primary percutaneous coronary intervention is the most effective strategy for reducing the size of a myocardial infarct and improving the clinical outcome. Unfortunately, restoring blood flow to the ischemic myocardium, named reperfusion, can also induce injury. This phenomenon was therefore termed myocardial ischemia reperfusion injury. Subsequent studies in animal models of acute myocardial infarction suggest that myocardial ischemia reperfusion injury accounts for up to 50% of the final size of a myocardial infarct. Consequently, many researchers aim to understand the underlying molecular mechanism of myocardial ischemia reperfusion injury to find therapeutic strategies ultimately reducing the final infarct size. Despite the identification of numerous therapeutic strategies at the bench, many of them are just in the process of being translated to bedside. The current review discusses the most striking basic science findings made during the past decades that are currently under clinical evaluation, with the ultimate goal to treat patients who are suffering from myocardial ischemia reperfusion-associated tissue injury.
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Affiliation(s)
- Anja Frank
- University of Colorado Denver, Aurora, CO 80045, USA
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Xiang YL, He L, Xiao J, Xia S, Deng SB, Xiu Y, She Q. Effect of trimetazidine treatment on the transient outward potassium current of the left ventricular myocytes of rats with streptozotocin-induced type 1 diabetes mellitus. Braz J Med Biol Res 2012; 45:205-11. [PMID: 22331134 PMCID: PMC3854190 DOI: 10.1590/s0100-879x2012007500019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2011] [Accepted: 02/06/2012] [Indexed: 02/22/2023] Open
Abstract
Cardiovascular complications are a leading cause of mortality in patients with diabetes mellitus (DM). The present study was designed to investigate the effects of trimetazidine (TMZ), an anti-angina drug, on transient outward potassium current (Ito) remodeling in ventricular myocytes and the plasma contents of free fatty acid (FFA) and glucose in DM. Sprague-Dawley rats, 8 weeks old and weighing 200-250 g, were randomly divided into three groups of 20 animals each. The control group was injected with vehicle (1 mM citrate buffer), the DM group was injected with 65 mg/kg streptozotocin (STZ) for induction of type 1 DM, and the DM+TMZ group was injected with the same dose of STZ followed by a 4-week treatment with TMZ (60 mg·kg−1·day−1). All animals were then euthanized and their hearts excised and subjected to electrophysiological measurements or gene expression analyses. TMZ exposure significantly reversed the increased plasma FFA level in diabetic rats, but failed to change the plasma glucose level. The amplitude of Ito was significantly decreased in left ventricular myocytes from diabetic rats relative to control animals (6.25 ± 1.45 vs 20.72 ± 2.93 pA/pF at +40 mV). The DM-associated Ito reduction was attenuated by TMZ. Moreover, TMZ treatment reversed the increased expression of the channel-forming alpha subunit Kv1.4 and the decreased expression of Kv4.2 and Kv4.3 in diabetic rat hearts. These data demonstrate that TMZ can normalize, or partially normalize, the increased plasma FFA content, the reduced Ito of ventricular myocytes, and the altered expression Kv1.4, Kv4.2, and Kv4.3 in type 1 DM.
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Affiliation(s)
- Yu-luan Xiang
- Department of Cardiology, the Second Affiliated Hospital, Chongqing Medical University, 76 Linjiang Road, Chongqing, China
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Bubnova MG, Aronov DM, Oganov RG, Rudomanov OG. New potential of Trimetazidine MB for coronary heart disease treatment in the real-world clinical practice: results of the Russian multi-centre randomised study PERSPECTIVE (Part II). КАРДИОВАСКУЛЯРНАЯ ТЕРАПИЯ И ПРОФИЛАКТИКА 2011. [DOI: 10.15829/1728-8800-2011-6-70-80] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Aim. As a clinical part of the Russian multi-centre randomised study, to assess the clinical benefits and safety of adding Trimetazidine MB to the standard treatment scheme in patients with stable angina (SA), in order to optimise their ambulatory therapy and improve their compliance. Material and methods. The study included 981 patients with Functional Class (FC) II-III SA and various concomitant diseases and syndromes, such as chronic heart failure (CHF), Type 2 diabetes mellitus (DM-2), or chronic obstructive pulmonary disease (COPD) in smokers. All participants were divided into two groups: Group I (n=838) received standard therapy plus trimetazidine MB (70 mg/d, twice a day), while Group II (n=143) received standard therapy only. The treatment and follow-up phases lasted for 12 months. Results. In Group I, the weekly number of angina attacks decreased by 42 % from the baseline at one month (р<0,0001), and by 70 % at 12 months (р<0,0001). The number of nitroglycerin (NTG) tablets taken decreased, respectively, by 41 % (р<0,0001) and 68 % (р<0,0001). In Group II, the decrease in angina attack number and NTG tablet number was significant only at 6 months and was less pronounced than in Group I. Therefore, in Group I, the number of patients with FC I increased by 7 times, while the number of FC III patients decreased by 1,8 times. No marked FC dynamics was observed in Group II. In Group I, left ventricular ejection fraction (LVEF) increased by 2,4 % (р<0,001), while interventricular septum and LV posterior wall thickness decreased, respectively, by 4,2 % (р<0,01) and 3,5 % (р<0,01). These parameters, however, did not change substantially in Group II patients. At 12 months, the number of patients hospitalised due to clinical decompensation, or becoming disable, was twice as high in Group II as in Group I. Conclusion. The Russian “PERSPECTIVE” Study results demonstrated high clinical effectiveness and safety ofTrimetazidineMB therapy, combined with standard treatment, in SA patients with CHF, DM-2, and COPD. Therefore, metabolic therapy could be more widely used in the real-world clinical settings.
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Kuzmicic J, Del Campo A, López-Crisosto C, Morales PE, Pennanen C, Bravo-Sagua R, Hechenleitner J, Zepeda R, Castro PF, Verdejo HE, Parra V, Chiong M, Lavandero S. [Mitochondrial dynamics: a potential new therapeutic target for heart failure]. Rev Esp Cardiol 2011; 64:916-23. [PMID: 21820793 DOI: 10.1016/j.recesp.2011.05.018] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Accepted: 05/31/2011] [Indexed: 12/19/2022]
Abstract
Mitochondria are dynamic organelles able to vary their morphology between elongated interconnected mitochondrial networks and fragmented disconnected arrays, through events of mitochondrial fusion and fission, respectively. These events allow the transmission of signaling messengers and exchange of metabolites within the cell. They have also been implicated in a variety of biological processes including embryonic development, metabolism, apoptosis, and autophagy. Although the majority of these studies have been confined to noncardiac cells, emerging evidence suggests that changes in mitochondrial morphology could participate in cardiac development, the response to ischemia-reperfusion injury, heart failure, and diabetes mellitus. In this article, we review how the mitochondrial dynamics are altered in different cardiac pathologies, with special emphasis on heart failure, and how this knowledge may provide new therapeutic targets for treating cardiovascular diseases.
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Affiliation(s)
- Jovan Kuzmicic
- Centro Estudios Moleculares de la Célula, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
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Hu B, Li W, Xu T, Chen T, Guo J. Evaluation of trimetazidine in angina pectoris by echocardiography and radionuclide angiography: a meta-analysis of randomized, controlled trials. Clin Cardiol 2011; 34:395-400. [PMID: 21538382 DOI: 10.1002/clc.20888] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2010] [Accepted: 12/21/2010] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The objective of this meta-analysis was to evaluate the efficacy of the metabolic agent trimetazidine (TMZ) as monotherapy in the treatment of stable angina pectoris, from echocardiography and radionuclide angiography data. HYPOTHESIS Treatment with TMZ proved to be as effective as other first-line antianginal agents for coronary patients, and it provided additional efficacy in combination with hemodynamic agents. METHODS A search of the literature published between 1965 and 2008 was performed on the MEDLINE and EMBASE databases. Only randomized, controlled trials were included in this meta-analysis. Patients had to be treated for at least 2 weeks with data on the following 4 parameters at baseline and at the end of the treatment period: left ventricular ejection fraction (LVEF), LV end-diastolic volume (LVEDV), LV end-systolic volume (LVESV), and wall motion score index (WMSI). The quality of the trials was assessed by the Jadad score. RESULTS Eleven clinical studies meeting our criteria were analyzed. Results showed that TMZ significantly improved LVEF, with a mean increase of 6.88% (95% confidence interval [CI]: 5.50-8.25), and significantly reduced LVESV by 11.58 mL (95% CI: 5.79-17.37) and WMSI by 0.23 (95% CI: 0.07-0.38). Changes in LVEDV were variable. In both the long term and the short term, TMZ can improve LV function. The efficacy was unchanged in patients with diabetes mellitus. CONCLUSIONS This meta-analysis confirmed the efficacy of TMZ monotherapy in improving LV function compared with placebo.
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Affiliation(s)
- Bo Hu
- Cardiovascular Institute and Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
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Holloway CJ, Cochlin LE, Emmanuel Y, Murray A, Codreanu I, Edwards LM, Szmigielski C, Tyler DJ, Knight NS, Saxby BK, Lambert B, Thompson C, Neubauer S, Clarke K. A high-fat diet impairs cardiac high-energy phosphate metabolism and cognitive function in healthy human subjects. Am J Clin Nutr 2011; 93:748-55. [PMID: 21270386 DOI: 10.3945/ajcn.110.002758] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND High-fat, low-carbohydrate diets are widely used for weight reduction, but they may also have detrimental effects via increased circulating free fatty acid concentrations. OBJECTIVE We tested whether raising plasma free fatty acids by using a high-fat, low-carbohydrate diet results in alterations in heart and brain in healthy subjects. DESIGN Men (n = 16) aged 22 ± 1 y (mean ± SE) were randomly assigned to 5 d of a high-fat, low-carbohydrate diet containing 75 ± 1% of calorie intake through fat consumption or to an isocaloric standard diet providing 23 ± 1% of calorie intake as fat. In a crossover design, subjects undertook the alternate diet after a 2-wk washout period, with results compared after the diet periods. Cardiac (31)P magnetic resonance (MR) spectroscopy and MR imaging, echocardiography, and computerized cognitive tests were used to assess cardiac phosphocreatine (PCr)/ATP, cardiac function, and cognitive function, respectively. RESULTS Compared with the standard diet, subjects who consumed the high-fat, low-carbohydrate diet had 44% higher plasma free fatty acids (P < 0.05), 9% lower cardiac PCr/ATP (P < 0.01), and no change in cardiac function. Cognitive tests showed impaired attention (P < 0.01), speed (P < 0.001), and mood (P < 0.01) after the high-fat, low-carbohydrate diet. CONCLUSION Raising plasma free fatty acids decreased myocardial PCr/ATP and reduced cognition, which suggests that a high-fat diet is detrimental to heart and brain in healthy subjects.
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Affiliation(s)
- Cameron J Holloway
- Department of Physiology, Anatomy and Genetics, University of Oxford, United Kingdom.
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