1
|
Is there an effect of ischemic conditioning on myocardial contractile function following acute myocardial ischemia/reperfusion injury? Biochim Biophys Acta Mol Basis Dis 2019; 1865:822-830. [PMID: 30660684 DOI: 10.1016/j.bbadis.2018.12.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 10/27/2022]
Abstract
Ischemic conditioning induces cardioprotection; the final infarct size following a myocardial ischemic event is reduced. However, whether ischemic conditioning has long-term beneficial effects on myocardial contractile function following such an ischemic event needs further elucidation. To date, ex vivo studies have shown that ischemic conditioning improves the contractile recovery of isolated ventricular papillary muscle or atrial trabeculae following simulated ischemia. However, in vivo animal studies and studies in patients undergoing elective cardiac surgery show conflicting results. At the subcellular level, it is known that ischemic conditioning improved energy metabolism, preserved mitochondrial respiration, ATP production, and Ca2+ homeostasis in isolated mitochondria from the myocardium. Ischemic conditioning also presents with post-translational modifications of proteins in the contractile machinery of the myocardium. The beneficial effects on myocardial contractile function need further elucidation. This article is part of a Special Issue entitled: The power of metabolism: Linking energy supply and demand to contractile function edited by Torsten Doenst, Michael Schwarzer and Christine Des Rosiers.
Collapse
|
2
|
Öztürk T, Vural K, Tuğlu İ, Var A, Kurdal T, Aydemir I. Acute and Chronic Pretreatment With Atenolol Attenuates Intestinal Ischemia and Reperfusion Injury in Hypercholesterolemic Rats. J Cardiothorac Vasc Anesth 2016; 30:985-92. [PMID: 27521968 DOI: 10.1053/j.jvca.2016.03.140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To evaluate the protective effects of preinjury atenolol (acute v chronic) on apoptosis, contractility, oxidative stress, and inflammatory markers in hypercholesterolemic rats undergoing intestinal ischemia-reperfusion (I/R) injury. DESIGN Prospective, experimental animal study. SETTING University laboratory. PARTICIPANTS Male Wistar rats (n = 32). INTERVENTIONS Rats were divided into the following 4 groups: 1 group was fed a normal diet (ND) (group ND+NoAT [no atenolol]), and the other 3 groups were fed a high-cholesterol diet (HCD)-group HCD+NoAT, group HCD+ChAT (chronic atenolol, 3 mg/kg/day for 8 weeks), and group HCD+AcAT (acute atenolol, 1.5 mg/kg, given 5 minutes before intestinal clamping). All rats underwent I/R injury. The superior mesenteric artery was clamped for 60 minutes, then opened for 120 minutes (reperfusion). Apoptotic cells and stimulated contractions of ileal segments were examined. Tissue markers of intestinal I/R injury were examined. Intestinal malondialdehyde, superoxide dismutase, and nitrate/nitrite levels were measured. MEASUREMENTS AND MAIN RESULTS The chronic atenolol group had fewer apoptotic cells and higher superoxide dismutase activity compared with the other groups. Intestinal contraction was higher in both atenolol pretreatment groups compared with the NoAT groups. Chronic and acute atenolol resulted in lower ileal levels of malondialdehyde and immunolabeling-positive cells (intestinal inducible nitric oxide synthase, endothelial nitric oxide synthase, interleukin-1, and interleukin-8) after I/R injury compared with the no atenolol groups. CONCLUSIONS Both chronic and acute pre-I/R injury treatment with atenolol attenuated I/R injury in this hypercholesterolemic rat model. These findings should encourage future studies of atenolol in hypercholesterolemic patients undergoing procedures with a high risk of intestinal ischemia.
Collapse
Affiliation(s)
- Tülün Öztürk
- Departments of Anaesthesiology and Reanimation, Celal Bayar University, Faculty of Medicine, Uncubozköy, Manisa, Turkey.
| | - Kamil Vural
- Pharmacology, Celal Bayar University, Faculty of Medicine, Uncubozköy, Manisa, Turkey
| | - İbrahim Tuğlu
- Histology, Celal Bayar University, Faculty of Medicine, Uncubozköy, Manisa, Turkey
| | - Ahmet Var
- Biochemistry, Celal Bayar University, Faculty of Medicine, Uncubozköy, Manisa, Turkey
| | - Taner Kurdal
- Cardiovascular Surgery, Celal Bayar University, Faculty of Medicine, Uncubozköy, Manisa, Turkey
| | - Işıl Aydemir
- Pharmacology, Celal Bayar University, Faculty of Medicine, Uncubozköy, Manisa, Turkey; Histology, Celal Bayar University, Faculty of Medicine, Uncubozköy, Manisa, Turkey
| |
Collapse
|
3
|
Wu N, Zhang X, Jia P, Jia D. Hypercholesterolemia aggravates myocardial ischemia reperfusion injury via activating endoplasmic reticulum stress-mediated apoptosis. Exp Mol Pathol 2015; 99:449-54. [PMID: 26318286 DOI: 10.1016/j.yexmp.2015.08.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 08/25/2015] [Indexed: 10/23/2022]
Abstract
The effect of hypercholesterolemia on myocardial ischemia reperfusion injury (MIRI) is in controversy and the underlying mechanism is still not well understood. In the present study, we firstly detected the effects of hypercholesterolemia on MIRI and the role of endoplasmic reticulum (ER) stress-mediated apoptosis pathway in this process. The infarct size was determined by TTC staining, and apoptosis was measured by the TUNEL method. The marker proteins of ER stress response and ER stress-mediated apoptosis pathway were detected by Western blot. The results showed that high cholesterol diet-induced hypercholesterolemia significantly increased the myocardial infarct size, the release of myocardium enzyme and the ratio of apoptosis, but did not affect the recovery of cardiac function. Moreover, hypercholesterolemia also remarkably up-regulated the expressions of ER stress markers (glucose-regulated protein 78 and calreticulin) and critical molecules in ER stress-mediated apoptosis pathway (CHOP, caspase 12, phospho-JNK). In conclusion, our study demonstrated that hypercholesterolemia enhanced myocardial vulnerability/sensitivity to ischemia reperfusion injury involved in aggravation the ER stress and activation of ER stress-mediated apoptosis pathway and it gave us a new insight into the underlying mechanisms associated with hypercholesterolemia-induced exaggerated MIRI and also provided a novel target for preventing MIRI in the presence of hypercholesterolemia.
Collapse
Affiliation(s)
- Nan Wu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Liaoning, China
| | - Xiaowen Zhang
- Department of Medical Genetics, China Medical University, Liaoning, China
| | - Pengyu Jia
- Department of Clinical Medicine, China Medical University, Liaoning, China
| | - Dalin Jia
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Liaoning, China.
| |
Collapse
|
4
|
Wu N, Zhang X, Jia P, Jia D. WITHDRAWN: Hypercholesterolemia aggravates myocardial ischemia reperfusion injury via activating endoplasmic reticulum stress-mediated apoptosis. Exp Mol Pathol 2015:S0014-4800(15)00098-2. [PMID: 25958270 DOI: 10.1016/j.yexmp.2015.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 05/05/2015] [Indexed: 11/29/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
Collapse
Affiliation(s)
- Nan Wu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Liaoning, China
| | - Xiaowen Zhang
- Department of Medical Genetics, China Medical University, Liaoning, China
| | - Pengyu Jia
- Department of Clinical Medicine, China Medical University, Liaoning, China
| | - Dalin Jia
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Liaoning, China.
| |
Collapse
|
5
|
D’Annunzio V, Donato M, Buchholz B, Pérez V, Miksztowicz V, Berg G, Gelpi RJ. High cholesterol diet effects on ischemia–reperfusion injury of the heart. Can J Physiol Pharmacol 2012; 90:1185-96. [DOI: 10.1139/y2012-085] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Ischemic heart disease is the leading cause of morbi-mortality in developed countries. Both ischemia–reperfusion injury and mechanisms of cardioprotection have been studied for more than 50 years. It is known that the physiopathological mechanism of myocardial ischemia involves several factors that are closely related to its development, of which hypercholesterolemia is one of the main ones. Therefore, the objective of this review was to elucidate the effects of a high-cholesterol diet on normal ventricular function and ischemia–reperfusion injury associated phenomenon such as post-ischemic ventricular dysfunction (stunned myocardium). Although there exist many studies considering several aspects of this physiopathological entity, the majority were carried out on normal animals. Thus, experiments carried out on hypercholesterolemic models are controversial, in particular those evaluating different mechanisms of cardioprotection such as ischemic preconditioning and postconditioning, and cardioprotection granted by drugs such as statins, which apart from exerting a lipid-lowering effect, exert pleiotropic effects providing cardioprotection against ischemia–reperfusion injury. These controversial results concerning the mechanisms of cardioprotection vary according to quality, composition, and time of administration of the high-cholesterol diet, as well as the species used in each experiment. Thus, to compare the results it is necessary to take all of these variables into account, since they can change the obtained results.
Collapse
Affiliation(s)
- Verónica D’Annunzio
- Institute of Cardiovascular Physiopathology, Department of Pathology, Faculty of Medicine, University of Buenos Aires, 2nd floor – 950 J.E Uriburu, Buenos Aires 1114, Argentina
| | - Martín Donato
- Institute of Cardiovascular Physiopathology, Department of Pathology, Faculty of Medicine, University of Buenos Aires, 2nd floor – 950 J.E Uriburu, Buenos Aires 1114, Argentina
| | - Bruno Buchholz
- Institute of Cardiovascular Physiopathology, Department of Pathology, Faculty of Medicine, University of Buenos Aires, 2nd floor – 950 J.E Uriburu, Buenos Aires 1114, Argentina
| | - Virginia Pérez
- Institute of Cardiovascular Physiopathology, Department of Pathology, Faculty of Medicine, University of Buenos Aires, 2nd floor – 950 J.E Uriburu, Buenos Aires 1114, Argentina
| | - Verónica Miksztowicz
- Institute of Physiopathology and Clinical Biochemistry, Lipids and Lipoproteins Laboratory, Department of Clinical Biochemistry, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires 1113, Argentina
| | - Gabriela Berg
- Institute of Physiopathology and Clinical Biochemistry, Lipids and Lipoproteins Laboratory, Department of Clinical Biochemistry, Faculty of Pharmacy and Biochemistry, University of Buenos Aires, Buenos Aires 1113, Argentina
| | - Ricardo J. Gelpi
- Institute of Cardiovascular Physiopathology, Department of Pathology, Faculty of Medicine, University of Buenos Aires, 2nd floor – 950 J.E Uriburu, Buenos Aires 1114, Argentina
| |
Collapse
|
6
|
Preconditioning the hyperlipidemic myocardium: Fact or fantasy? Cell Signal 2012; 24:589-95. [DOI: 10.1016/j.cellsig.2011.11.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Accepted: 11/02/2011] [Indexed: 11/16/2022]
|
7
|
Sanada S, Komuro I, Kitakaze M. Pathophysiology of myocardial reperfusion injury: preconditioning, postconditioning, and translational aspects of protective measures. Am J Physiol Heart Circ Physiol 2011; 301:H1723-41. [PMID: 21856909 DOI: 10.1152/ajpheart.00553.2011] [Citation(s) in RCA: 260] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Heart diseases due to myocardial ischemia, such as myocardial infarction or ischemic heart failure, are major causes of death in developed countries, and their number is unfortunately still growing. Preliminary exploration into the pathophysiology of ischemia-reperfusion injury, together with the accumulation of clinical evidence, led to the discovery of ischemic preconditioning, which has been the main hypothesis for over three decades for how ischemia-reperfusion injury can be attenuated. The subcellular pathophysiological mechanism of ischemia-reperfusion injury and preconditioning-induced cardioprotection is not well understood, but extensive research into components, including autacoids, ion channels, receptors, subcellular signaling cascades, and mitochondrial modulators, as well as strategies for modulating these components, has made evolutional progress. Owing to the accumulation of both basic and clinical evidence, the idea of ischemic postconditioning with a cardioprotective potential has been discovered and established, making it possible to apply this knowledge in the clinical setting after ischemia-reperfusion insult. Another a great outcome has been the launch of translational studies that apply basic findings for manipulating ischemia-reperfusion injury into practical clinical treatments against ischemic heart diseases. In this review, we discuss the current findings regarding the fundamental pathophysiological mechanisms of ischemia-reperfusion injury, the associated protective mechanisms of ischemic pre- and postconditioning, and the potential seeds for molecular, pharmacological, or mechanical treatments against ischemia-reperfusion injury, as well as subsequent adverse outcomes by modulation of subcellular signaling mechanisms (especially mitochondrial function). We also review emerging translational clinical trials and the subsistent clinical comorbidities that need to be overcome to make these trials applicable in clinical medicine.
Collapse
Affiliation(s)
- Shoji Sanada
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Japan
| | | | | |
Collapse
|
8
|
Zhao H, Wang Y, Wu Y, Li X, Yang G, Ma X, Zhao R, Liu H. Hyperlipidemia does not prevent the cardioprotection by postconditioning against myocardial ischemia/reperfusion injury and the involvement of hypoxia inducible factor-1alpha upregulation. Acta Biochim Biophys Sin (Shanghai) 2009; 41:745-53. [PMID: 19727523 DOI: 10.1093/abbs/gmp063] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Hyperlipidemia is regarded as an independent risk factor in the development of ischemic heart disease, and it can increase the myocardial susceptibility to ischemia/reperfusion (I/R) injury. Ischemic postconditioning (Postcon) has been demonstrated to attenuate the myocardial injury induced by I/R in normal conditions. But the effect of ischemic Postcon on hyperlipidemic animals is unknown. Hypoxia inducible factor-1 (HIF-1) has been demonstrated to play a central role in the cardioprotection by preconditioning, which is one of the protective strategies except for Postcon. The aim of this study was to determine whether Postcon could reduce myocardial injury in hyperlipidemic animals and to assess whether HIF-1 was involved in Postcon mechanisms. Male Wistar rats underwent the left anterior descending coronary occlusion for 30 min followed by 180 min of reperfusion with or without Postcon after fed with high fat diet or normal diet for 8 weeks. The detrimental indices induced by the I/R insult included infarct size, plasma creatine kinase activity and caspase-3 activity. Results showed that hyperlipidemia remarkably enhanced the myocardial injury induced by I/R, while Postcon significantly decreased the myocardial injury in both normolipidemic and hyperlipidemic rats. Moreover, both hyperlipidemia and I/R promoted the HIF-1alpha expression. Most importantly, we have for the first time demonstrated that Postcon further induced a significant increase in HIF-1alpha protein level not only in normolipidemic but also in hyperlipidemic conditions. Thus, Postcon reduces the myocardial injury induced by I/R in normal and hyperlipidemic animals, and HIF-1alpha upregulation may involve in the Postcon-mediated cardioprotective mechanisms.
Collapse
Affiliation(s)
- Huanxin Zhao
- Department of Physiology, Shanxi Medical University, Taiyuan 030001, China
| | | | | | | | | | | | | | | |
Collapse
|