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Üstündağ H, Doğanay S, Kalındemirtaş FD, Demir Ö, Huyut MT, Kurt N, Özgeriş FB, Akbaba Ö. A new treatment approach: Melatonin and ascorbic acid synergy shields against sepsis-induced heart and kidney damage in male rats. Life Sci 2023; 329:121875. [PMID: 37355223 DOI: 10.1016/j.lfs.2023.121875] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 06/26/2023]
Abstract
AIM To investigate the combined therapeutic potential of melatonin and ascorbic acid in mitigating sepsis-induced heart and kidney injury in male rats and assess the combination therapy's effects on inflammation, cellular damage, oxidative stress, and vascular function-related markers. MATERIALS AND METHODS Cecal ligation and puncture (CLP) induced sepsis in male rats, which were divided into five groups: Sham, CLP, MEL (melatonin), ASA (ascorbic acid), and MEL+ASA (melatonin and ascorbic acid). Rats were treated, and heart and kidney tissues were collected for biochemical and histopathological analyses. Inflammatory markers (presepsin, procalcitonin, NF-κB, IL-1β, IL-6, TNF-α), cellular damage marker (8-OHDG), oxidative status, nitric oxide (NO), vascular endothelial growth factor (VEGF), and sirtuin 1 (SIRT1) levels were assessed. KEY FINDINGS Melatonin and ascorbic acid treatment reduced inflammatory and cellular damage markers compared to the CLP group. Combined treatment improved NO, VEGF levels, and increased SIRT1 expression, suggesting a synergistic effect in mitigating sepsis-induced inflammation, cellular damage, and oxidative stress. Histopathological analyses supported these findings, revealing reduced heart and kidney injury in the MEL+ASA group. SIGNIFICANCE Our study highlights potential benefits of combining melatonin and ascorbic acid as a therapeutic strategy for alleviating sepsis-induced heart and kidney injury. The synergistic effects of these agents may provide stronger protection against inflammation, oxidative stress, and tissue damage, opening new avenues for future research and clinical applications in sepsis management.
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Affiliation(s)
- Hilal Üstündağ
- Depertment of Physiology, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan 24100, Türkiye.
| | - Songül Doğanay
- Department of Physiology, Faculty of Medicine, Sakarya University, Sakarya 54100, Türkiye.
| | | | - Özlem Demir
- Depertment of Histology, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan 24100, Türkiye.
| | - Mehmet Tahir Huyut
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan 24100, Türkiye.
| | - Nezahat Kurt
- Department of Biochemistry, Faculty of Medicine, Erzincan Binali Yıldırım University, Erzincan 24100, Türkiye.
| | - Fatma Betül Özgeriş
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Ataturk University, Erzurum 25100, Türkiye.
| | - Özge Akbaba
- Vocational School of Health Services, Department of Medical Services and Techniques, First and Emergency Aid Program, 24100 Erzincan, Türkiye.
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Partsernyak AS, Polyakova VO, Trufanov AG, Medvedev DS, Trotsyuk DV, Markin K, Kurasov ES, Kuznetsova EV, Krasichkov AS. Melatonin: Manager of psychosomatic and metabolic disorders in polymorbid cardiovascular pathology. Front Neurosci 2022; 16:989497. [PMID: 36248667 PMCID: PMC9554144 DOI: 10.3389/fnins.2022.989497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives To investigate the relationship between changes in circadian patterns of melatonin and clinical manifestations of polymorbid cardiovascular pathology (PCVP) in young men and to analyze the effectiveness of their complex treatment. Materials and methods We made the immunohistochemical (IHC) analysis of epiphysis tissues from autopsies of 25 men aged 32–44 with PCVP and metabolic syndrome (MS) who had died as a result of ischemic cardiomyopathy (IC) and 25 persons after the car accident as a control group. Then, 93 young men aged 35–44 with PCVP, metabolic syndrome, and depressive spectrum disorders (DSD) were divided into three groups: (1) standard therapy; (2) standard therapy and psychotherapy sessions; (3) standard therapy in combination with psychotherapeutic and psychophysiological visual and auditory correction sessions. The control group included 24 conditionally healthy male volunteers. Before and after the treatment, we studied the anthropometric status, lipid and carbohydrate metabolism indicators, the level of urinary 6-hydroxymelatonin sulfate, the degree of nocturnal decrease in blood pressure (BP), and the relationship of these indicators with circadian variations of melatonin excretion. Results Young polymorbid patients who died from IC have a lower expression of melatonin type 1 and 2 receptors. All patients with PCVP showed a decrease in the nocturnal melatonin excretion fraction and a correlation with higher severity of depressive (r = −0.72) and anxiety (r = −0.66) symptoms. Reduced values of the 6-hydroxymelatonin sulfate (6-SM) in the 1st (r = 0.45), 2nd (r = 0.39), and 3rd (r = 0.51) groups before treatment was associated with periods of increased BP. The achievement of melatonin excretion reference values and normalization of biochemical parameters of carbohydrate and lipid metabolism, daily BP profile, and psychophysiological state were noted in all three patients’ groups, with a more pronounced effect in group 3. Conclusion Low nocturnal melatonin excretion levels are associated with greater severity of clinical symptoms and a higher risk of death in patients with PCVP. Therefore, comprehensive therapy may be more effective for correcting this disease.
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Affiliation(s)
- Alexander S. Partsernyak
- Department of Military Field Therapy, Kirov Military Medical Academy, Saint Petersburg, Russia
- *Correspondence: Alexander S. Partsernyak,
| | - Victoria O. Polyakova
- Center for Molecular Biomedicine, St. Petersburg Research Institute of Phthisiopulmonology, Saint Petersburg, Russia
| | - Artem G. Trufanov
- Department of Neurology, Kirov Military Medical Academy, Saint Petersburg, Russia
- Department of Software Engineering and Computer Applications, Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg, Russia
| | - Dmitriy S. Medvedev
- Department of Physiological Assessment and Medical Correction, Research Institute of Hygiene, Occupational Pathology and Human Ecology of the Federal Medical Biological Agency of Russia, Kuzmolovsky, Russia
| | - Dina V. Trotsyuk
- Department of Internal Diseases, Private Educational Institution of Higher Education “St. Petersburg Medical and Social Institute”, Saint Petersburg, Russia
| | - Kirill Markin
- Department of Psychiatry, Kirov Military Medical Academy, Saint Petersburg, Russia
| | - Evgeniy S. Kurasov
- Department of Psychiatry, Kirov Military Medical Academy, Saint Petersburg, Russia
| | | | - Alexander S. Krasichkov
- Department of Radio Engineering Systems, Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg, Russia
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Chitosan as Functional Biomaterial for Designing Delivery Systems in Cardiac Therapies. Gels 2021; 7:gels7040253. [PMID: 34940314 PMCID: PMC8702013 DOI: 10.3390/gels7040253] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/29/2021] [Accepted: 12/03/2021] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular diseases are a leading cause of mortality across the globe, and transplant surgeries are not always successful since it is not always possible to replace most of the damaged heart tissues, for example in myocardial infarction. Chitosan, a natural polysaccharide, is an important biomaterial for many biomedical and pharmaceutical industries. Based on the origin, degree of deacetylation, structure, and biological functions, chitosan has emerged for vital tissue engineering applications. Recent studies reported that chitosan coupled with innovative technologies helped to load or deliver drugs or stem cells to repair the damaged heart tissue not just in a myocardial infarction but even in other cardiac therapies. Herein, we outlined the latest advances in cardiac tissue engineering mediated by chitosan overcoming the barriers in cardiac diseases. We reviewed in vitro and in vivo data reported dealing with drug delivery systems, scaffolds, or carriers fabricated using chitosan for stem cell therapy essential in cardiac tissue engineering. This comprehensive review also summarizes the properties of chitosan as a biomaterial substrate having sufficient mechanical stability that can stimulate the native collagen fibril structure for differentiating pluripotent stem cells and mesenchymal stem cells into cardiomyocytes for cardiac tissue engineering.
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4
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Domínguez-Rodríguez A, Abreu-González P, Báez-Ferrer N, Reiter RJ, Avanzas P, Hernández-Vaquero D. Melatonin and Cardioprotection in Humans: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Front Cardiovasc Med 2021; 8:635083. [PMID: 34055929 PMCID: PMC8149621 DOI: 10.3389/fcvm.2021.635083] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 04/06/2021] [Indexed: 02/02/2023] Open
Abstract
Myocardial ischemia/reperfusion (IR) injury represents a critical problem associated with interventional approaches for coronary reperfusion. Pharmacological cardioprotective interventions are advocated to ameliorate IR injury. Melatonin is an anti-inflammatory and antioxidant agent with a wide range of therapeutic properties that may contribute to its cardioprotective effects. No systematic review or meta-analysis has compared melatonin vs. placebo as a cardioprotective agent in humans. The present study, based on a systematic review and meta-analysis, was carried out to assess melatonin's efficacy as a cardioprotective treatment. We performed a systematic review of the available literature. Randomized controlled trials (RCTs) were identified and information was extracted using predefined data extraction forms. The primary outcomes were (a) left ventricular ejection fraction (LVEF) and (b) blood troponin levels in patients who underwent myocardial revascularization and were randomized to melatonin or placebo. The inverse-variance random-effects method was used to pool the estimates. Heterogeneity and publication bias were assessed. Weighted mean differences or standardized mean differences were calculated. A total of 283 records were screened and seven RCTs met all the inclusion criteria. After the pooled analysis, the results on LVEF were consistent across all studies, and a significant heterogeneity was found in the results on troponin levels. The melatonin-treated patients had on average higher LVEF than the placebo-treated individuals with a weighted mean difference = 3.1% (95% CI 0.6-5.5, p = 0.01). Five works compared the levels of troponin after melatonin or placebo treatment. The melatonin-treated patients had lower levels of troponin with a standardized mean difference = -1.76 (95% CI -2.85 to -0.67, p = 0.002). The findings of this meta-analysis revealed that melatonin administration in humans as a cardioprotective agent attenuated heart dysfunction with a favorable effect on the LVEF.
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Affiliation(s)
- Alberto Domínguez-Rodríguez
- Hospital Universitario de Canarias, Servicio de Cardiología, Tenerife, Spain.,Departamento de Enfermería, Facultad de Ciencias de la Salud, Universidad de La Laguna Tenerife, San Cristóbal de La Laguna, Spain
| | - Pedro Abreu-González
- Departamento de Fisiología, Facultad de Medicina, Universidad de La Laguna, Tenerife, San Cristóbal de La Laguna, Spain
| | - Néstor Báez-Ferrer
- Hospital Universitario de Canarias, Servicio de Cardiología, Tenerife, Spain
| | - Russel J Reiter
- Department of Cell Systems and Anatomy UT Health San Antonio, Long School of Medicine, San Antonio, TX, United States
| | - Pablo Avanzas
- Área del Corazón, Hospital Universitario Central de Asturias, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Daniel Hernández-Vaquero
- Área del Corazón, Hospital Universitario Central de Asturias, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
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Chen L, Chen XY, Wang QL, Yang SJ, Zhou H, Ding LS, Qing LS, Luo P. Astragaloside IV Derivative (LS-102) Alleviated Myocardial Ischemia Reperfusion Injury by Inhibiting Drp1 Ser616 Phosphorylation-Mediated Mitochondrial Fission. Front Pharmacol 2020; 11:1083. [PMID: 33041784 PMCID: PMC7528720 DOI: 10.3389/fphar.2020.01083] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/02/2020] [Indexed: 12/15/2022] Open
Abstract
Our previous studies showed that Astragaloside IV derivative (LS-102) exhibited potent protective function against ischemia reperfusion (I/R) injury, but little is known about the mechanisms. Mitochondrial fission regulated by dynamin-related protein1 (Drp1) is a newly recognized determinant of mitochondrial function. This study aimed to investigate the protection of LS-102 on mitochondrial structure and function by regulating the activity of Drp1 using models of H9c2 cardiomyocyte injury induced by hypoxia-reperfusion (H/R), and rat heart injury induced by I/R. The results showed that LS-102 significantly decreased apoptosis, levels of ROS, CK, LDH, and calcium, upregulating MMP, and the Bax/Bcl-2 ratio in cardiomyocytes during I/R injury. Furthermore, LS-102 prevented I/R-induced mitochondrial fission by decreasing Drp1's mitochondrial localization through decreasing the phosphorylation of Drp1 at Ser616 (Drp1Ser616) and increasing the phosphorylation of Drp1 at Ser637 (Drp1Ser637) in H9c2 cells. Importantly, we also robustly confirmed Drp1Ser616 as a novel GSK-3β phosphorylation site. GSK-3β-mediated phosphorylation at Drp1Ser616 may be associated with mitochondrial fission during I/R of cardiomyocytes. In conclusion, LS-102 exerts cardio protection against I/R-induced injury by inhibiting mitochondrial fission via blocking GSK-3β-mediated phosphorylation at Ser616 of Drp1.
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Affiliation(s)
- Li Chen
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
- Department of Cardiac Encephalopathy, Traditional Chinese Medicine Hospital Affiliated to Southwest Medical University, Luzhou, China
| | - Xiao-Yi Chen
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Qian-Long Wang
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Si-Jin Yang
- Department of Cardiac Encephalopathy, Traditional Chinese Medicine Hospital Affiliated to Southwest Medical University, Luzhou, China
| | - Hua Zhou
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
| | - Li-Sheng Ding
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Lin-Sen Qing
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Pei Luo
- State Key Laboratories for Quality Research in Chinese Medicines, Macau University of Science and Technology, Macau, China
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6
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Saat N, Risvanli A, Dogan H, Onalan E, Akpolat N, Seker I, Sahna E. Effect of melatonin on torsion and reperfusion induced pathogenesis of rat uterus. Biotech Histochem 2019; 94:533-539. [PMID: 31070494 DOI: 10.1080/10520295.2019.1605456] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We investigated the use of melatonin to improve fertility and reduce uterine damage caused by torsion of the uterus in pregnant rats. We used 35 pregnant rats at gestational age 18 days. The animals were randomized into five groups. Group 1 was anesthetized only. Group 2 was subjected to experimental uterine torsion of 360° and the torsion was corrected after 6 h. Group 3 was subjected to uterine torsion of 360°, the torsion was corrected after 6 h and melatonin was administered at the time of correction. Group 4 rats were subjected to 360º uterine torsion and melatonin was administered 6 h later at the time of correction. Group 5 was administered melatonin followed by uterine torsion of 360 degrees followed by correction of torsion 6 h later. Samples were obtained from the uterine horns on the day 1 postpartum. We used Bax, Bcl-2 and caspase 3 staining to measure apoptosis in the uterine tissues. The mRNA levels of Rho-associated, coiled-coil containing protein kinases 1 (ROCK1), homeobox D10 (Hox4 HoxD10), TLR4, NFκB1, caveolin 1 (Cav1) heat shock protein 90 alpha (cytosolic), class B member 1 (Hsp90ab1) and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) were determined using quantitative real-time polymerase chain reaction analysis (qRT-PCR). Bax, Bcl-2 and caspase 3 were detected using immunohistochemistry. No difference was observed among groups with respect to abortion, neonatal mortality or congenital abnormalities. Compared to the control group, the mRNA levels of Rock1, Hox4, TLR4, NFκB1, Cav1 and Hsp90 genes were decreased significantly in the study groups; the decrease was greater in groups 3 and 4, which were treated with melatonin. The greatest amount of Bax staining was found in group 1 and the least amount of Bcl-2 staining was found in groups 4 and 5; the greatest amount of caspase 3 staining was found in group 2. Our findings indicate that melatonin reduced uterine torsion related tissue damage and that its application during torsion was more effective than application following removal of torsion.
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Affiliation(s)
- N Saat
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Balikesir , Balikesir , Turkey
| | - A Risvanli
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Firat , Elazig , Turkey
| | - H Dogan
- Department of Obstetrics and Gynecology, Faculty of Veterinary Medicine, University of Namik Kemal , Tekirdag , Turkey
| | - E Onalan
- Department of Medical Biology and Genetics, Faculty of Medicine, University of Firat , Elazig , Turkey
| | - N Akpolat
- Department of Pathology, Faculty of Medicine, University of Inonu , Malatya , Turkey
| | - I Seker
- Department of Zootechny, Faculty of Veterinary Medicine, University of Firat , Elazig , Turkey
| | - E Sahna
- Department of Pharmacology, Faculty of Medicine, University of Firat , Elazig , Turkey
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7
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Arunkumar P, Dougherty JA, Weist J, Kumar N, Angelos MG, Powell HM, Khan M. Sustained Release of Basic Fibroblast Growth Factor (bFGF) Encapsulated Polycaprolactone (PCL) Microspheres Promote Angiogenesis In Vivo. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1037. [PMID: 31330782 PMCID: PMC6669517 DOI: 10.3390/nano9071037] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 07/14/2019] [Accepted: 07/17/2019] [Indexed: 12/15/2022]
Abstract
Coronary heart disease (CHD) is the leading cause of death in the Unites States and globally. The administration of growth factors to preserve cardiac function after myocardial infarction (MI) is currently being explored. Basic fibroblast growth factor (bFGF), a potent angiogenic factor has poor clinical efficacy due to its short biological half-life and low plasma stability. The goal of this study was to develop bFGF-loaded polycaprolactone (PCL) microspheres for sustained release of bFGF and to evaluate its angiogenic potential. The bFGF-PCL microspheres (bFGF-PCL-MS) were fabricated using the emulsion solvent-evaporation method and found to have spherical morphology with a mean size of 4.21 ± 1.28 µm. In vitro bFGF release studies showed a controlled release for up to 30 days. Treatment of HUVECs with bFGF-PCL-MS in vitro enhanced their cell proliferation and migration properties when compared to the untreated control group. Treatment of HUVECs with release media from bFGF-PCL-MS also significantly increased expression of angiogenic genes (bFGF and VEGFA) as compared to untreated cells. The in vivo angiogenic potential of these bFGF-PCL-MS was further confirmed in rats using a Matrigel plug assay with subsequent immunohistochemical staining showing increased expression of angiogenic markers. Overall, bFGF-PCL-MS could serve as a potential angiogenic agent to promote cell survival and angiogenesis following an acute myocardial infarction.
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Affiliation(s)
- Pala Arunkumar
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Julie A Dougherty
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Jessica Weist
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Naresh Kumar
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Mark G Angelos
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Heather M Powell
- Department of Materials Science and Engineering, Department of Biomedical Engineering, The Ohio State University, Columbus, OH 43210, USA
- Research Department, Shriners Hospitals for Children, Cincinnati, OH 43210, USA
| | - Mahmood Khan
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA.
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Qasim M, Arunkumar P, Powell HM, Khan M. Current research trends and challenges in tissue engineering for mending broken hearts. Life Sci 2019; 229:233-250. [PMID: 31103607 PMCID: PMC6799998 DOI: 10.1016/j.lfs.2019.05.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/01/2019] [Accepted: 05/06/2019] [Indexed: 02/07/2023]
Abstract
Cardiovascular disease (CVD) is among the leading causes of mortality worldwide. The shortage of donor hearts to treat end-stage heart failure patients is a critical problem. An average of 3500 heart transplant surgeries are performed globally, half of these transplants are performed in the US alone. Stem cell therapy is growing rapidly as an alternative strategy to repair or replace the damaged heart tissue after a myocardial infarction (MI). Nevertheless, the relatively poor survival of the stem cells in the ischemic heart is a major challenge to the therapeutic efficacy of stem-cell transplantation. Recent advancements in tissue engineering offer novel biomaterials and innovative technologies to improve upon the survival of stem cells as well as to repair the damaged heart tissue following a myocardial infarction (MI). However, there are several limitations in tissue engineering technologies to develop a fully functional, beating cardiac tissue. Therefore, the main goal of this review article is to address the current advancements and barriers in cardiac tissue engineering to augment the survival and retention of stem cells in the ischemic heart.
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Affiliation(s)
- Muhammad Qasim
- Department of Stem Cell and Regenerative Biotechnology, Humanized Pig Research Center (SRC), Konkuk University, Seoul, Republic of Korea
| | - Pala Arunkumar
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States
| | - Heather M Powell
- Department of Materials Science and Engineering, Department of Biomedical Engineering, The Ohio State University, Columbus, OH, United States; Research Department, Shriners Hospitals for Children, Cincinnati, OH, United States
| | - Mahmood Khan
- Department of Emergency Medicine, College of Medicine, Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH, United States; Department of Physiology and Cell Biology, The Ohio State University Wexner Medical Center, Columbus, OH, United States.
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Catalpol pretreatment attenuates cardiac dysfunction following myocardial infarction in rats. Anatol J Cardiol 2019; 19:296-302. [PMID: 29724983 PMCID: PMC6280265 DOI: 10.14744/anatoljcardiol.2018.33230] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Objective: To investigate the effects and mechanisms of catalpol on cardiac function in rats with isoproterenol (ISO)-induced myocardial infarction (MI). Methods: Adult male Wistar rats were divided into four groups: control group, ISO group, catalpol (L, low dose) group, and catalpol (H, high dose) group. Isoproterenol (85 mg/kg) was injected subcutaneously for 2 consecutive days to induce experimental MI. At the end of experiment, the effects of catalpol on cardiac function; apelin levels; apoptosis index; apelin, APJ, Bcl-2, and Bax protein expression; and caspase-3/9 activities were investigated. Results: The rats in the ISO group showed lower left ventricular maximum rate of positive or negative pressure development (±LVdp/dtmax) and left ventricular end-systolic pressure (LVSP) and higher left ventricular end-diastolic pressure (LVEDP) than those in the control group, suggesting severe cardiac dysfunction. Interestingly, catalpol administration significantly ameliorated the ISO-induced cardiac dysfunction. The groups administered low and high dosages catalpol (5 and 10 mg/kg/day, respectively) showed higher ±LVdp/dtmax and LVSP and lower LVEDP than the group administered ISO alone. Catalpol markedly upregulated apelin levels in the plasma and myocardium. Further, catalpol increased the apelin and APJ expression levels in the myocardium of the ISO-treated rats. In addition, catalpol pretreatment inhibited cardiomyocyte apoptosis as indicated by a decrease in the TUNEL-positive cell percentage, alterations in the Bax and Bcl-2 expression levels, and a decline in caspase-3 and caspase-9 activities. Conclusion: Our results revealed that catalpol can improve cardiac function. Its protective effects may be linked to the enhancement of myocardium contractility, regulation of the apelin/APJ pathway, and inhibition of cardiomyocyte apoptosis.
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Seo WW, Suh JW, Oh IY, Yoon CH, Cho YS, Youn TJ, Chae IH, Choi DJ. Efficacy of IntraCoronary Erythropoietin Delivery BEfore Reperfusion-Gauging Infarct Size in Patients with Acute ST-segment Elevation Myocardial Infarction (ICEBERG). Int Heart J 2019; 60:255-263. [PMID: 30799375 DOI: 10.1536/ihj.18-035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Previous clinical studies have shown inconsistent results regarding the effect of erythropoietin in ST-segment elevation myocardial infarction (STEMI). This study investigated whether directed intracoronary infusion of darbepoetin-α into ischemic myocardium before reperfusion would reduce infarct size or post-infarct remodeling in STEMI patients.Eighty STEMI patients received one of the following treatments simultaneously with the first balloon inflation: intracoronary darbepoetin-α 300 μg (n = 40) or saline (n = 40), administered via the over-the-wire balloon system. The primary endpoint was infarct size estimated by serial cardiac enzyme levels after procedure. The secondary endpoints were (1) infarct size and proportion of salvaged myocardium measured with cardiac magnetic resonance (CMR) at baseline; (2) post-infarct remodeling (PIR), defined as an increase in left ventricular end-diastolic volume more than 20% at 4 months compared to the baseline on CMR; and (3) composite cardiovascular endpoints assessed at 4 months.The peak CK-MB [median 270.0 (interquartile range 139.8-356.3) versus 231.5 (131.0-408.5) ng/mL, P = 0.55] and troponin-I [128.5 (63.5-227.8) versus 109.0 (43.8-220.0) ng/mL, P = 0.52) ] did not differ between the darbepoetin-α and control group. Fifty-seven patients completed the baseline and 4-month follow-up CMR. There were no differences in infarct size [30.6 (18.1-49.8) versus 31.5 (22.5-47.3) cm3, P = 0.91), proportion of salvaged myocardium [26.7% (15.9-42.6%) versus 35.8% (22.4-48.8%), P = 0.12) or PIR (8.0% versus 6.7%, P = 0.62) between the two groups. Composite cardiovascular outcomes did not differ between the two groups.In conclusion, administration of intracoronary darbepoetin-α before reperfusion did not reduce infarct size or post-infarct remodeling in STEMI patients.
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Affiliation(s)
- Won-Woo Seo
- Division of Cardiology, Department of Internal Medicine, Kangdong Sacred Heart Hospital
| | - Jung-Won Suh
- Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center, Seoul National University Bundang Hospital
| | - Il-Young Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center, Seoul National University Bundang Hospital
| | - Chang-Hwan Yoon
- Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center, Seoul National University Bundang Hospital
| | - Young-Seok Cho
- Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center, Seoul National University Bundang Hospital
| | - Tae-Jin Youn
- Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center, Seoul National University Bundang Hospital
| | - In-Ho Chae
- Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center, Seoul National University Bundang Hospital
| | - Dong-Ju Choi
- Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center, Seoul National University Bundang Hospital
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Peng YW, Mohammed A, Deatrick KB, Major T, Cheng D, Charpie I, Charpie JR. Differential Effects of Normoxic and Hyperoxic Reperfusion on Global Myocardial Ischemia-Reperfusion Injury. Semin Thorac Cardiovasc Surg 2018; 31:188-198. [PMID: 30278268 DOI: 10.1053/j.semtcvs.2018.09.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 09/21/2018] [Indexed: 11/11/2022]
Abstract
The objectives were to investigate if after hypoxia or ischemia, normoxic reperfusion is associated with less oxidant stress (OS), inflammation, and myocardial injury than hyperoxic reperfusion. In this study, cardiomyocytes (H9c2 cells) were cultured in hypoxia, followed by reoxygenation in normoxia or hyperoxia. Cardiomyocyte OS, inflammation, and apoptosis were measured. In parallel experiments, rabbits were cannulated for cardiopulmonary bypass (CPB). Following cardioplegic arrest and aortic cross-clamp removal, hearts were reperfused under normoxic or hyperoxic conditions. Left ventricular developed pressure and contractility (LV +dP/dt) were recorded, and blood samples and heart tissues were collected for measurement of OS, inflammation, and cardiac injury. Results showed that H9c2 cells exposed to hyperoxic reoxygenation showed significant increases in OS, inflammation, and apoptosis compared to normoxic reoxygenation. Following CPB and 2-hour hyperoxic reperfusion, LV +dP/dt and left ventricular developed pressure were significantly decreased compared with pre-CPB values (to 36 ± 21%, P = 0.002; and 53 ± 20%, P = 0.02, respectively), associated with significant increases in all plasma and tissue biomarkers for OS, inflammation, and myocardial injury. In contrast, LV +dP/dt was relatively well preserved under normoxic reperfusion conditions (to 70 ± 14% after 2-hour reperfusion), and was associated with an attenuated myocardial OS, inflammatory, apoptotic, and injury response compared to the hyperoxia group (eg, cTn-I: 5.9 ± 1.5 vs 20.2 ± 7.6 ng/mL, respectively, P < 0.0001). Overall, in both in vitro and in vivo experiments, normoxic reperfusion/reoxygenation was associated with less robust OS, inflammation, apoptosis, and myocardial injury compared with hyperoxic reperfusion/reoxygenation. These results suggest that hyperoxia should be avoided to minimize myocardial OS, inflammation, and ventricular dysfunction after CPB.
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Affiliation(s)
- Yun-Wen Peng
- Division of Pediatric Cardiology, Department of Pediatrics & Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan
| | - Azmath Mohammed
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | | | - Terry Major
- Department of Surgery, University of Michigan Medical School, Ann Arbor, Michigan
| | - Dorothy Cheng
- Division of Pediatric Cardiology, Department of Pediatrics & Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan
| | - Ian Charpie
- Division of Pediatric Cardiology, Department of Pediatrics & Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan
| | - John R Charpie
- Division of Pediatric Cardiology, Department of Pediatrics & Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan.
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12
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Paradies G, Paradies V, Ruggiero FM, Petrosillo G. Mitochondrial bioenergetics and cardiolipin alterations in myocardial ischemia-reperfusion injury: implications for pharmacological cardioprotection. Am J Physiol Heart Circ Physiol 2018; 315:H1341-H1352. [PMID: 30095969 DOI: 10.1152/ajpheart.00028.2018] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Mitochondrial dysfunction plays a central role in myocardial ischemia-reperfusion (I/R) injury. Increased reactive oxygen species production, impaired electron transport chain activity, aberrant mitochondrial dynamics, Ca2+ overload, and opening of the mitochondrial permeability transition pore have been proposed as major contributory factors to mitochondrial dysfunction during myocardial I/R injury. Cardiolipin (CL), a mitochondria-specific phospholipid, plays a pivotal role in multiple mitochondrial bioenergetic processes, including respiration and energy conversion, in mitochondrial morphology and dynamics as well as in several steps of the apoptotic process. Changes in CL levels, species composition, and degree of oxidation may have deleterious consequences for mitochondrial function with important implications in a variety of pathophysiological conditions, including myocardial I/R injury. In this review, we focus on the role played by CL alterations in mitochondrial dysfunction in myocardial I/R injury. Pharmacological strategies to prevent myocardial injury during I/R targeting mitochondrial CL are also examined.
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Affiliation(s)
- Giuseppe Paradies
- Department of Biosciences, Biotechnologies, and Biopharmaceutics, University of Bari , Bari , Italy
| | | | - Francesca Maria Ruggiero
- Department of Biosciences, Biotechnologies, and Biopharmaceutics, University of Bari , Bari , Italy
| | - Giuseppe Petrosillo
- Institute of Biomembranes, Bioenergetics, and Molecular Biotechnologies, National Research Council , Bari , Italy
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13
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Meng Y, Du Z, Li Y, Wang L, Gao P, Gao X, Li C, Zhao M, Jiang Y, Tu P, Guo X. Integration of Metabolomics With Pharmacodynamics to Elucidate the Anti-myocardial Ischemia Effects of Combination of Notoginseng Total Saponins and Safflower Total Flavonoids. Front Pharmacol 2018; 9:667. [PMID: 29988484 PMCID: PMC6026671 DOI: 10.3389/fphar.2018.00667] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Accepted: 06/04/2018] [Indexed: 01/20/2023] Open
Abstract
Notoginseng (Sanqi), the roots and rhizomes of Panax notoginseng and safflower, the flowers of Carthamus tinctorius, are widely used traditional Chinese medicines (TCMs) for the treatment of cardiovascular diseases. Positive evidences have fueled growing acceptance for cardioprotective effects of the combination of the notoginseng total saponins and safflower total flavonoids (CNS) against myocardial ischemia (MI). However, the underlying cardioprotective mechanisms of CNS are still obscured. Metabolomics is a comprehensive tool for investigating biological mechanisms of disease, monitoring therapeutic outcomes, and advancing drug discovery and development. Herein, we investigated the cardioprotective effects of CNS on the isoproterenol (ISO)-induced MI rats by using plasma and urine metabolomics based on ultra-performance liquid chromatography coupled with quadrupole-time of flight mass spectrometry (UPLC-Q-TOF/MS) and multiple pharmacodynamics approaches. The results showed that pretreatment with CNS could attenuate the cardiac injury resulting from ISO, as evidenced by decreasing the myocardial infarct size, converting the echocardiographic, histopathological, and plasma biochemical abnormalities, and reversing the perturbations of plasma and urine metabolic profiles, particularly for the 55.0 mg/kg dosage group. In addition, 44 metabolites were identified as the potential MI biomarkers, mainly including a range of free fatty acids (FFAs), sphingolipids, and glycerophospholipids. CNS pretreatment group may robustly ameliorate these potential MI-related biomarkers. The accumulation of LysoPCs and FFAs, caused by PLA2, may activate NF-κB pathway and increase proinflammatory cytokines. However, our results showed that CNS at 55.0 mg/kg dosage could maximally attenuate the NF-κB signaling pathway, depress the expressions of TNF-α, IL-6, IL-1β, and PLA2. The results suggested that the anti-inflammatory property of CNS may contribute to its cardioprotection against MI. Our results demonstrate that the integrating of metabolomics with pharmacodynamics provides a reasonable approach for understanding the therapeutic effects of TCMs and CNS provide a potential candidate for prevention and treatment of MI.
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Affiliation(s)
- Yuqing Meng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Zhiyong Du
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yan Li
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Lichao Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Peng Gao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xiaoyan Gao
- School of Chinese Material Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Chun Li
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Mingbo Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yong Jiang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Pengfei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Xiaoyu Guo
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
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14
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Rakhshan K, Azizi Y, Naderi N, Ghardashi Afousi A, Aboutaleb N. ELABELA (ELA) Peptide Exerts Cardioprotection Against Myocardial Infarction by Targeting Oxidative Stress and the Improvement of Heart Function. Int J Pept Res Ther 2018. [DOI: 10.1007/s10989-018-9707-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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15
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Tanshinone IIA Sodium Sulfonate Attenuates LPS-Induced Intestinal Injury in Mice. Gastroenterol Res Pract 2018; 2018:9867150. [PMID: 29706995 PMCID: PMC5863351 DOI: 10.1155/2018/9867150] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 10/24/2017] [Indexed: 12/31/2022] Open
Abstract
Background Tanshinone IIA sodium sulfonate (TSS) is known to possess anti-inflammatory effects and has exhibited protective effects in various inflammatory conditions; however, its role in lipopolysaccharide- (LPS-) induced intestinal injury is still unknown. Objective The present study is designed to explore the role and possible mechanism of TSS in LPS-induced intestinal injury. Methods Male C57BL/6J mice, challenged with intraperitoneal LPS injection, were treated with or without TSS 0.5 h prior to LPS exposure. At 1, 6, and 12 h after LPS injection, mice were sacrificed, and the small intestine was excised. The intestinal tissue injury was analyzed by HE staining. Inflammatory factors (TNF-α, IL-1β, and IL-6) in the intestinal tissue were examined by ELISA and RT-PCR. In addition, expressions of autophagy markers (microtubule-associated light chain 3 (LC3) and Beclin-1) were detected by western blot and RT-PCR. A number of autophagosomes were also observed under electron microscopy. Results TSS treatment significantly attenuated small intestinal epithelium injury induced by LPS. LPS-induced release of inflammatory mediators, including TNF-α, IL-1β, and IL-6, were markedly inhibited by TSS. Furthermore, TSS treatment could effectively upregulate LPS-induced decrease of autophagy levels, as evidenced by the increased expression of LC3 and Beclin-1, and more autophagosomes. Conclusion The protective effect of TSS on LPS-induced small intestinal injury may be attributed to the inhibition of inflammatory factors and promotion of autophagy levels. The present study may provide novel insight into the molecular mechanisms of TSS on the treatment of intestinal injury.
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Combined Treatment With Exenatide and Cyclosporine A or Parstatin 1-26 Results in Enhanced Reduction of Infarct Size in a Rabbit Model. J Cardiovasc Pharmacol 2017; 70:34-41. [DOI: 10.1097/fjc.0000000000000492] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bliksøen M, Rutkovskiy A, Vaage J, Stensløkken KO. Mode of perfusion influences infarct size, coronary flow and stress kinases in the isolated mouse heart. Acta Physiol (Oxf) 2017; 220:36-46. [PMID: 27543941 DOI: 10.1111/apha.12773] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 03/02/2016] [Accepted: 08/12/2016] [Indexed: 01/05/2023]
Abstract
AIM The isolated, retrogradely perfused heart (modified Langendorff model) is a widely used method in experimental heart research. The presence of an intraventricular balloon is necessary to get functional measurements. We have previously shown that the balloon induces phosphorylation of some suggested cardioprotective mitogen-activated protein kinases (MAPK): P38-MAPK, ERK 1/2 and JNK. We hypothesized that the balloon could influence cardioprotection, protect against ischaemia reperfusion injury and interfere with coronary flow. METHODS AND RESULTS Isolated mouse hearts were perfused for 5, 10, 20, 40 and 60 min with a balloon in the left ventricle. We found a wavelike phosphorylation of all MAPK while AKT displayed a gradual dephosphorylation when compared to non-perfused hearts. Hearts were subjected to 20 min of stabilization with or without the balloon, followed by 35 min of ischaemia and 120 min of reperfusion. Although the MAPK were phosphorylated, the infarcts were larger in the balloon group. When the balloon was present during the entire protocol, compared to removal at the end of ischaemia, the infarct size was also larger, especially in the endocardial layer. The balloon reduced post-ischaemic endocardial coronary flow, despite a higher average flow, indicating a hyperperfused epicard. Blocking the balloon-induced ERK 1/2 phosphorylation during stabilization did not affect infarct size. The effect of post-conditioning was influenced by the balloon, showing reduced infarct size when the balloon was present. CONCLUSION The balloon used for pressure measurements may contributes to cell death possibly by reducing endocardial coronary flow.
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Affiliation(s)
- M. Bliksøen
- Division of Physiology; Department of Molecular Medicine; Institute of Basic Medical Sciences; University of Oslo; Oslo Norway
- Department of Emergency Medicine and Intensive Care; Oslo University Hospital, Ullevål; Oslo Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
| | - A. Rutkovskiy
- Division of Physiology; Department of Molecular Medicine; Institute of Basic Medical Sciences; University of Oslo; Oslo Norway
- Department of Emergency Medicine and Intensive Care; Oslo University Hospital, Ullevål; Oslo Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
- Centre for Heart Failure Research; Oslo University Hospital; Oslo Norway
| | - J. Vaage
- Division of Physiology; Department of Molecular Medicine; Institute of Basic Medical Sciences; University of Oslo; Oslo Norway
- Department of Emergency Medicine and Intensive Care; Oslo University Hospital, Ullevål; Oslo Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
| | - K.-O. Stensløkken
- Division of Physiology; Department of Molecular Medicine; Institute of Basic Medical Sciences; University of Oslo; Oslo Norway
- Institute of Clinical Medicine; University of Oslo; Oslo Norway
- Centre for Heart Failure Research; Oslo University Hospital; Oslo Norway
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18
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Lizano P, Rashed E, Stoll S, Zhou N, Wen H, Hays TT, Qin G, Xie LH, Depre C, Qiu H. The valosin-containing protein is a novel mediator of mitochondrial respiration and cell survival in the heart in vivo. Sci Rep 2017; 7:46324. [PMID: 28425440 PMCID: PMC5397870 DOI: 10.1038/srep46324] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 03/16/2017] [Indexed: 12/24/2022] Open
Abstract
The valosin-containing protein (VCP) participates in signaling pathways essential for cell homeostasis in multiple tissues, however, its function in the heart in vivo remains unknown. Here we offer the first description of the expression, function and mechanism of action of VCP in the mammalian heart in vivo in both normal and stress conditions. By using a transgenic (TG) mouse with cardiac-specific overexpression (3.5-fold) of VCP, we demonstrate that VCP is a new and powerful mediator of cardiac protection against cell death in vivo, as evidenced by a 50% reduction of infarct size after ischemia/reperfusion versus wild type. We also identify a novel role of VCP in preserving mitochondrial respiration and in preventing the opening of mitochondrial permeability transition pore in cardiac myocytes under stress. In particular, by genetic deletion of inducible isoform of nitric oxide synthase (iNOS) from VCP TG mouse and by pharmacological inhibition of iNOS in isolated cardiac myocytes, we reveal that an increase of expression and activity of iNOS in cardiomyocytes by VCP is an essential mechanistic link of VCP-mediated preservation of mitochondrial function. These data together demonstrate that VCP may represent a novel therapeutic avenue for the prevention of myocardial ischemia.
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Affiliation(s)
- Paulo Lizano
- Department of Cell Biology and Molecular Medicine; New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, 07103, USA
| | - Eman Rashed
- Department of Cell Biology and Molecular Medicine; New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, 07103, USA
| | - Shaunrick Stoll
- Division of Physiology, Department of Basic Science, School of Medicine, Loma Linda University, Loma Linda, CA, 92324, USA
| | - Ning Zhou
- Division of Physiology, Department of Basic Science, School of Medicine, Loma Linda University, Loma Linda, CA, 92324, USA
| | - Hairuo Wen
- Department of Cell Biology and Molecular Medicine; New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, 07103, USA
| | - Tristan T Hays
- Division of Physiology, Department of Basic Science, School of Medicine, Loma Linda University, Loma Linda, CA, 92324, USA
| | - Gangjian Qin
- Department of Biomedical Engineering, University of Alabama at Birmingham (UAB),Birmingham, AL, 35294, USA
| | - Lai-Hua Xie
- Department of Cell Biology and Molecular Medicine; New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, 07103, USA
| | - Christophe Depre
- Department of Cell Biology and Molecular Medicine; New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, 07103, USA
| | - Hongyu Qiu
- Department of Cell Biology and Molecular Medicine; New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, 07103, USA.,Division of Physiology, Department of Basic Science, School of Medicine, Loma Linda University, Loma Linda, CA, 92324, USA
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19
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Ahmed SM, Abdelrahman SA, Salama AE. Efficacy of gold nanoparticles against isoproterenol induced acute myocardial infarction in adult male albino rats. Ultrastruct Pathol 2017; 41:168-185. [PMID: 28277146 DOI: 10.1080/01913123.2017.1281367] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
This study was undertaken to investigate the role of gold nanoparticles (GNPs) of 50 nm diameter on isoproterenol (ISO) induced acute myocardial infarction in adult male albino rats. Forty five adult Wistar male albino rats were equally divided into three groups. Control (group I) was further subdivided into three subgroups. In group II, the rats received ISO subcutaneously at a dose of 100 mg/kg for three days. In group III, rats received ISO as group II and then GNPs (400 μg/kg/day) intravenously for 14 consecutive days. Echocardiography was performed. Left ventricular specimens were prepared for H&E, van Gieson staining, immunohistochemical analysis for (eNOs and Bcl-2), and Electron microscope examination. Energy dispersive X-ray microanalysis was also performed. Cardiac markers such as creatine Kinase-MB (CK-MB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), and cardiac troponin T (cTnT) were measured. Group II revealed cardiomyocytes with deeply stained acidophilic cytoplasm, small dark nuclei, intracellular vacuolations, wide intercellular spaces, and extravasated red blood cells. Increased collagen fibers were observed. Electron microscope examination showed cardiomyocyte with small and irregular outlined nuclei, mitochondria with irregular cristae and others with ruptured mitochondrial membrane, abnormal alignment of myofibrils, dilated cisternae of smooth endoplasmic reticulum, and disorganized intercalated discs. Group III showed that most cardiomyocytes preserved the normal architecture. Increased expression of eNOs immunoreaction and decreased Bcl-2 immunoreaction were detected in group II as compared to the control and GNP-treated groups. These findings suggested that GNPs of 50 nm diameter improved myocardial injury after ISO-induced myocardial infarction in rats. ABBREVIATIONS Myocardial infarction (MI), Isoproterenol (ISO), Nitric oxide (NO), Neuronal NOS (nNOs), Endothelial NOs (eNOs), Gold nanoparticle (GNPs), Diamiobenzidine (DAB), Serum Creatine Kinase-MB (CK-MB), Alanine aminotransferase (ALT), Cardiac troponin T (cTnT), Electrochemiluminiscence (ECLIA), Cardiomyocytes (CMC), Peroxisomal proliferator activated receptor (PPARs), Reactive oxygen species (ROS).
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Affiliation(s)
- Samah M Ahmed
- a Histology and Cell Biology Department, Faculty of Human Medicine , Zagazig University , Zagazig , Egypt
| | - Shaimaa Ali Abdelrahman
- a Histology and Cell Biology Department, Faculty of Human Medicine , Zagazig University , Zagazig , Egypt
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20
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Ischemia/Reperfusion Injury following Acute Myocardial Infarction: A Critical Issue for Clinicians and Forensic Pathologists. Mediators Inflamm 2017; 2017:7018393. [PMID: 28286377 PMCID: PMC5327760 DOI: 10.1155/2017/7018393] [Citation(s) in RCA: 258] [Impact Index Per Article: 36.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 10/26/2016] [Accepted: 11/30/2016] [Indexed: 12/27/2022] Open
Abstract
Acute myocardial infarction (AMI) is a leading cause of morbidity and mortality. Reperfusion strategies are the current standard therapy for AMI. However, they may result in paradoxical cardiomyocyte dysfunction, known as ischemic reperfusion injury (IRI). Different forms of IRI are recognized, of which only the first two are reversible: reperfusion-induced arrhythmias, myocardial stunning, microvascular obstruction, and lethal myocardial reperfusion injury. Sudden death is the most common pattern for ischemia-induced lethal ventricular arrhythmias during AMI. The exact mechanisms of IRI are not fully known. Molecular, cellular, and tissue alterations such as cell death, inflammation, neurohumoral activation, and oxidative stress are considered to be of paramount importance in IRI. However, comprehension of the exact pathophysiological mechanisms remains a challenge for clinicians. Furthermore, myocardial IRI is a critical issue also for forensic pathologists since sudden death may occur despite timely reperfusion following AMI, that is one of the most frequently litigated areas of cardiology practice. In this paper we explore the literature regarding the pathophysiology of myocardial IRI, focusing on the possible role of the calpain system, oxidative-nitrosative stress, and matrix metalloproteinases and aiming to foster knowledge of IRI pathophysiology also in terms of medicolegal understanding of sudden deaths following AMI.
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21
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Steppich B, Groha P, Ibrahim T, Schunkert H, Laugwitz KL, Hadamitzky M, Kastrati A, Ott I. Effect of Erythropoietin in patients with acute myocardial infarction: five-year results of the REVIVAL-3 trial. BMC Cardiovasc Disord 2017; 17:38. [PMID: 28109258 PMCID: PMC5251242 DOI: 10.1186/s12872-016-0464-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2016] [Accepted: 12/29/2016] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Erythropoietin (EPO) has been suggested to promote cardiac repair after MI. However, the randomized, double-blind, placebo controlled REVIVAL-3 trial showed that short term high dose EPO in timely reperfused myocardium does not improve left ventricular ejection fraction after 6 months. Moreover, the study raised safety concerns due to a trend towards a higher incidence of adverse clinical events as well as a increase in neointima formation after treatment with EPO. The present study therefore aimed to assess the 5-year clinical outcomes. METHODS After successful reperfusion 138 patients with STEMI were randomly assigned to receive epoetin beta (3.33×104 U, n = 68) or placebo (n = 70) immediately, 24 and 48 h after percutaneous coronary intervention. The primary outcome of the present study- the combined incidence of MACE 5 years after randomization - occurred in 25% of the patients assigned to epoetin beta and 17% of the patients assigned to placebo (RR 1.5; 95% CI 0.8-3.5; p = 0.26). Target lesion revascularization was required in 15 patients (22.1%) treated with epoetin-ß and 9 patients (12.9%) treated with placebo (p = 0.15). Analysis of patients in the upper and lower quartile of baseline hemoglobin as an indirect estimate of endogenous erythropoietin levels revealed no significant impact of endogenous erythropoietin on efficiency of exogen administered epoetin-ß in terms of death and MACE. CONCLUSION These long-term follow-up data show that epoetin beta does not improve clinical outcomes of patients with acute myocardial infarction. TRIAL REGISTRATION URL www.clinicaltrials.gov ; Unique identifier NCT00390832; trial registration date October 19th 2006.
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Affiliation(s)
- Birgit Steppich
- Deutsches Herzzentrum der Technischen Universität München, Lazarettstr. 36, 80636, Munich, Germany.
| | - Philip Groha
- Deutsches Herzzentrum der Technischen Universität München, Lazarettstr. 36, 80636, Munich, Germany
| | - Tareq Ibrahim
- Medizinische Klinik Klinikum rechts der Isar der Technischen Universität München, Ismaningerstr. 22, 81675, Munich, Germany
| | - Heribert Schunkert
- Medizinische Klinik Klinikum rechts der Isar der Technischen Universität München, Ismaningerstr. 22, 81675, Munich, Germany
| | - Karl-Ludwig Laugwitz
- Medizinische Klinik Klinikum rechts der Isar der Technischen Universität München, Ismaningerstr. 22, 81675, Munich, Germany
| | - Martin Hadamitzky
- Deutsches Herzzentrum der Technischen Universität München, Lazarettstr. 36, 80636, Munich, Germany
| | - Adnan Kastrati
- Deutsches Herzzentrum der Technischen Universität München, Lazarettstr. 36, 80636, Munich, Germany
| | - Ilka Ott
- Deutsches Herzzentrum der Technischen Universität München, Lazarettstr. 36, 80636, Munich, Germany
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Yu L, Fan C, Li Z, Zhang J, Xue X, Xu Y, Zhao G, Yang Y, Wang H. Melatonin rescues cardiac thioredoxin system during ischemia-reperfusion injury in acute hyperglycemic state by restoring Notch1/Hes1/Akt signaling in a membrane receptor-dependent manner. J Pineal Res 2017; 62. [PMID: 27753144 DOI: 10.1111/jpi.12375] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 10/14/2016] [Indexed: 01/08/2023]
Abstract
Stress hyperglycemia is commonly observed in patients suffering from ischemic heart disease. It not only worsens cardiovascular prognosis but also attenuates the efficacies of various cardioprotective agents. This study aimed to investigate the protective effect of melatonin against myocardial ischemia-reperfusion (MI/R) injury in acute hyperglycemic state with a focus on Notch1/Hes1/Akt signaling and intracellular thioredoxin (Trx) system. Sprague Dawley rats were subjected to MI/R surgery and high-glucose (HG, 500 g/L) infusion (4 mL/kg/h) to induce temporary hyperglycemia. Rats were treated with or without melatonin (10 mg/kg/d) during the operation. Furthermore, HG (33 mmol/L)-incubated H9c2 cardiomyoblasts were treated in the presence or absence of luzindole (a competitive melatonin receptor antagonist), DAPT (a γ-secretase inhibitor), LY294002 (a PI3-kinase/Akt inhibitor), or thioredoxin-interacting protein (Txnip) adenoviral vectors. We found that acute hyperglycemia aggravated MI/R injury by suppressing Notch1/Hes1/Akt signaling and intracellular Trx activity. Melatonin treatment effectively ameliorated MI/R injury by reducing infarct size, myocardial apoptosis, and oxidative stress. Moreover, melatonin also markedly enhanced Notch1/Hes1/Akt signaling and rescued intracellular Trx system by upregulating Notch1, N1ICD, Hes1, and p-Akt expressions, increasing Trx activity, and downregulating Txnip expression. However, these effects were blunted by luzindole, DAPT, or LY294002. Additionally, Txnip overexpression not only decreased Trx activity, but also attenuated the cytoprotective effect of melatonin. We conclude that impaired Notch1 signaling aggravates MI/R injury in acute hyperglycemic state. Melatonin rescues Trx system by reducing Txnip expression via Notch1/Hes1/Akt signaling in a membrane receptor-dependent manner. Its role as a prophylactic/therapeutic drug deserves further clinical study.
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Affiliation(s)
- Liming Yu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Chongxi Fan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zhi Li
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Jian Zhang
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Xiaodong Xue
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Yinli Xu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Guolong Zhao
- Department of Cardiovascular Surgery, Northwest Women's and Children's Hospital, Xi'an, Shaanxi, China
| | - Yang Yang
- Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an, China
- Department of Thoracic and Cardiovascular Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Huishan Wang
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
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Reiter RJ, Mayo JC, Tan DX, Sainz RM, Alatorre-Jimenez M, Qin L. Melatonin as an antioxidant: under promises but over delivers. J Pineal Res 2016; 61:253-78. [PMID: 27500468 DOI: 10.1111/jpi.12360] [Citation(s) in RCA: 1034] [Impact Index Per Article: 129.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 08/05/2016] [Indexed: 12/12/2022]
Abstract
Melatonin is uncommonly effective in reducing oxidative stress under a remarkably large number of circumstances. It achieves this action via a variety of means: direct detoxification of reactive oxygen and reactive nitrogen species and indirectly by stimulating antioxidant enzymes while suppressing the activity of pro-oxidant enzymes. In addition to these well-described actions, melatonin also reportedly chelates transition metals, which are involved in the Fenton/Haber-Weiss reactions; in doing so, melatonin reduces the formation of the devastatingly toxic hydroxyl radical resulting in the reduction of oxidative stress. Melatonin's ubiquitous but unequal intracellular distribution, including its high concentrations in mitochondria, likely aid in its capacity to resist oxidative stress and cellular apoptosis. There is credible evidence to suggest that melatonin should be classified as a mitochondria-targeted antioxidant. Melatonin's capacity to prevent oxidative damage and the associated physiological debilitation is well documented in numerous experimental ischemia/reperfusion (hypoxia/reoxygenation) studies especially in the brain (stroke) and in the heart (heart attack). Melatonin, via its antiradical mechanisms, also reduces the toxicity of noxious prescription drugs and of methamphetamine, a drug of abuse. Experimental findings also indicate that melatonin renders treatment-resistant cancers sensitive to various therapeutic agents and may be useful, due to its multiple antioxidant actions, in especially delaying and perhaps treating a variety of age-related diseases and dehumanizing conditions. Melatonin has been effectively used to combat oxidative stress, inflammation and cellular apoptosis and to restore tissue function in a number of human trials; its efficacy supports its more extensive use in a wider variety of human studies. The uncommonly high-safety profile of melatonin also bolsters this conclusion. It is the current feeling of the authors that, in view of the widely diverse beneficial functions that have been reported for melatonin, these may be merely epiphenomena of the more fundamental, yet-to-be identified basic action(s) of this ancient molecule.
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Affiliation(s)
- Russel J Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA.
| | - Juan C Mayo
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Dun-Xian Tan
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Rosa M Sainz
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Moises Alatorre-Jimenez
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Lilian Qin
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
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Melatonin attenuates angiotensin II-induced cardiomyocyte hypertrophy through the CyPA/CD147 signaling pathway. Mol Cell Biochem 2016; 422:85-95. [DOI: 10.1007/s11010-016-2808-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 08/29/2016] [Indexed: 10/21/2022]
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25
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Fukushima S, Miyagawa S, Sakai Y, Sawa Y. A sustained-release drug-delivery system of synthetic prostacyclin agonist, ONO-1301SR: a new reagent to enhance cardiac tissue salvage and/or regeneration in the damaged heart. Heart Fail Rev 2016; 20:401-13. [PMID: 25708182 PMCID: PMC4464640 DOI: 10.1007/s10741-015-9477-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Cardiac failure is a major cause of mortality and morbidity worldwide, since the standard treatment for cardiac failure in the clinical practice is chiefly to focus on removal of insults against the heart or minimisation of additional factors to exacerbate cardiac failure, but not on regeneration of the damaged cardiac tissue. A synthetic prostacyclin agonist, ONO-1301, has been developed as a long-acting drug for acute and chronic pathologies related to regional ischaemia, inflammation and/or interstitial fibrosis by pre-clinical studies. In addition, poly-lactic co-glycolic acid-polymerised form of ONO-1301, ONO-1301SR, was generated to achieve a further sustained release of this drug into the targeted region. This unique reagent has been shown to act on fibroblasts, vascular smooth muscle cells and endothelial cells in the tissue via the prostaglandin IP receptor to exert paracrinal release of multiple protective factors, such as hepatocyte growth factor, vascular endothelial growth factor or stromal cell-derived factor-1, into the adjacent damaged tissue, which is salvaged and/or regenerated as a result. Our laboratory developed a new surgical approach to treat acute and chronic cardiac failure using a variety of animal models, in which ONO-1301SR is directly placed over the cardiac surface to maximise the therapeutic effects and minimise the systemic complications. This review summarises basic and pre-clinical information of ONO-1301 and ONO-1301SR as a new reagent to enhance tissue salvage and/or regeneration, with a particular focus on the therapeutic effects on acute and chronic cardiac failure and underlying mechanisms, to explore a potential in launching the clinical study.
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Affiliation(s)
- Satsuki Fukushima
- Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, 2-2 Yamadaoka, Suita, Osaka, 565-0871, Japan,
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Moradi-Arzeloo M, Farshid AA, Tamaddonfard E, Asri-Rezaei S. Effects of histidine and vitamin C on isoproterenol-induced acute myocardial infarction in rats. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2016; 7:47-54. [PMID: 27226887 PMCID: PMC4867037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Accepted: 11/30/2015] [Indexed: 12/02/2022]
Abstract
In the present study, we investigated the effects of histidine and vitamin C (alone or in combination) treatments against isoproterenol (a β-adrenergic receptor agonist)-induced acute myocardial infarction in rats. We used propranolol (a β-adrenergic receptor blocker) to compare the results. Rats were given intraperitoneal injections of histidine (40 mg kg(-1)) and vitamin C (40 mg kg(-1)) alone and combined daily for 21 days. Propranolol (10 mg kg(-1)) was orally administered daily for 10 days (from day 11 to day 21). Myocardial infarction was induced by subcutaneous injections of 150 mg kg(-1) of isoproterenol at an interval of 24 hr on days 20 and 21. Blood and tissue samples were taken for histopathological and biochemical evaluations following electrocardiography recording on day 21. Isoproterenol elevated ST segment, increased heart weight, heart rate, serum activities of aspartate transaminase, lactate dehydrogenase, creatine kinase-MB and heart tissue content of malondialdehyde, and decreased R wave amplitude and superoxide dismutase and catalase activities of heart tissue. Necrosis, edema and inflammatory cells infiltration were observed in myocardial tissue sections. Our results indicated that histidine and vitamin C alone, and especially in combination prevent isoproterenol-induced cardiotoxicity and have similar protective effects with propranolol. Cardioprotective effects of histidine and vitamin C may be associated with their ability to reduce free radical-induced toxic effects.
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Affiliation(s)
- Masoumeh Moradi-Arzeloo
- Postgraduate student, Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran;
| | - Amir Abbas Farshid
- Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran; ,Correspondence Amir Abbas Farshid. PhD ,Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran, E-mail:
| | - Esmaeal Tamaddonfard
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran;
| | - Siamak Asri-Rezaei
- Department of Internal Medicine and Clinical Pathology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
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Maarman G, Blackhurst D, Thienemann F, Blauwet L, Butrous G, Davies N, Sliwa K, Lecour S. Melatonin as a preventive and curative therapy against pulmonary hypertension. J Pineal Res 2015. [PMID: 26201290 DOI: 10.1111/jpi.12263] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Pulmonary hypertension (PH) is characterized by elevated pulmonary arterial pressure, which leads to right ventricular (RV) hypertrophy and failure. The pathophysiological mechanisms of PH remain unclear but oxidative stress is believed to contribute to RV dysfunction. Melatonin is a powerful antioxidant and is cardioprotective against ischemia-reperfusion injury and hypertension. Therefore, we hypothesized that a chronic treatment with melatonin, given as a curative or preventive therapy, may confer cardiovascular benefits in PH. PH was induced in Long Evans rats (n ≥ 6 per group), with a single subcutaneous injection of monocrotaline (MCT, 80 mg/kg). Melatonin was given daily in the drinking water, with the treatment starting either on the day of the injection of MCT (dose testing: melatonin 75 ng/L and 6 mg/kg), 14 days after the injection of MCT (curative treatment: 6 mg/kg), or 5 days before the injection (preventive treatment: 6 mg/kg). The development of PH was assessed by measuring RV hypertrophy, RV function, cardiac interstitial fibrosis, and plasma oxidative stress. Compared with controls, MCT-treated rats displayed RV hypertrophy and dysfunction, increased interstitial fibrosis, and elevated plasma oxidative stress. A chronic melatonin treatment (75 ng/L or 6 mg/kg) reduced RV hypertrophy, improved RV function and reduced plasma oxidative stress. Curative and preventive treatment improved RV functional and plasma oxidative stress parameters and reduced cardiac interstitial fibrosis. Our data demonstrate that melatonin confers cardioprotection in this model of PH. As melatonin is an inexpensive and safe drug, we propose that clinical investigation of the effects of melatonin on RV function in patients with PH should be considered.
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MESH Headings
- Animals
- Antioxidants/therapeutic use
- Hypertension, Pulmonary/chemically induced
- Hypertension, Pulmonary/drug therapy
- Hypertension, Pulmonary/prevention & control
- Hypertrophy, Right Ventricular/chemically induced
- Hypertrophy, Right Ventricular/drug therapy
- Hypertrophy, Right Ventricular/prevention & control
- Male
- Melatonin/therapeutic use
- Monocrotaline/toxicity
- Rats
- Rats, Long-Evans
- Ventricular Dysfunction, Right/chemically induced
- Ventricular Dysfunction, Right/drug therapy
- Ventricular Dysfunction, Right/prevention & control
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Affiliation(s)
- Gerald Maarman
- Hatter Institute for Cardiovascular Research in Africa and Inter University MRC Cape Heart Group, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Dee Blackhurst
- Division of Chemical Pathology, Department of Clinical Laboratory Sciences, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Friedrich Thienemann
- Clinical Infectious Diseases Research Initiative, Institute of Infectious Diseases and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | | | - Neil Davies
- Cardiovascular Research Unit, Chris Barnard Division of Cardiothoracic Surgery, University of Cape Town, Faculty of Health Sciences, Cape Town, South Africa
| | - Karen Sliwa
- Hatter Institute for Cardiovascular Research in Africa and Inter University MRC Cape Heart Group, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Sandrine Lecour
- Hatter Institute for Cardiovascular Research in Africa and Inter University MRC Cape Heart Group, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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Dan H, Zhang L, Qin X, Peng X, Wong M, Tan X, Yu S, Fang N. Moutan cortex extract exerts protective effects in a rat model of cardiac ischemia/reperfusion. Can J Physiol Pharmacol 2015; 94:245-50. [PMID: 26610043 DOI: 10.1139/cjpp-2015-0168] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Moutan cortex (MC) is a traditional Chinese medicine with diverse biological effects. The present study was performed to investigate the effects of MC on myocardial ischemia/reperfusion (I/R) in rats and to explore its possible mechanisms. Sprague-Dawley rats were administered MC extract (1.98 g/kg, i.g.) for 14 days and underwent a subsequent open-chest procedure involving 30 min of myocardial ischemia and 60 min of reperfusion. The cardioprotective effect of MC was demonstrated by reduced infarct size and marked improvement in the histopathological examination. The increase in the activity of superoxide dismutase (SOD) and glutathione (GSH) as well as the reduction of malondialdehyde (MDA) indicated that MC effectively promoted the anti-oxidative defense system. Increased anti-oxidative defense was accompanied by decreased release of lactate dehydrogenase (LDH) and creatine kinase (CK). The reduction in TUNEL-positive myocytes demonstrated that MC decreased myocardial apoptosis. The mRNA expression of B cell leukemia-2 (Bcl-2) was upregulated by MC and the ratio of Bcl-2/Bcl-2-associated X protein (Bax) mRNA expression was increased. MC pretreatment decreased the mRNA expression of inducible nitric oxide synthase (iNOS). The data from this study suggest that MC exerted protective effects on acute myocardial I/R injury via anti-oxidative and anti-apoptotic activities.
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Affiliation(s)
- Hong Dan
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription (Hubei University of Chinese Medicine), Ministry of Education, 1 Huang-jia-hu, Wuhan, China
| | - Liping Zhang
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription (Hubei University of Chinese Medicine), Ministry of Education, 1 Huang-jia-hu, Wuhan, China
| | - Xiaolin Qin
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription (Hubei University of Chinese Medicine), Ministry of Education, 1 Huang-jia-hu, Wuhan, China
| | - Xiaohui Peng
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription (Hubei University of Chinese Medicine), Ministry of Education, 1 Huang-jia-hu, Wuhan, China
| | - Mingyan Wong
- a Key Laboratory of Chinese Medicine Resource and Compound Prescription (Hubei University of Chinese Medicine), Ministry of Education, 1 Huang-jia-hu, Wuhan, China
| | - Xuan Tan
- b Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, China
| | - Shanggong Yu
- c Arkansas Children's Nutrition Center, Little Rock, AR 72202, USA
| | - Nianbai Fang
- c Arkansas Children's Nutrition Center, Little Rock, AR 72202, USA.,d Departments of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
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Cardioprotection with melatonin in the acute myocardial infarction: Awaiting results of MARIA trial? Int J Cardiol 2015; 182:54-5. [DOI: 10.1016/j.ijcard.2014.12.126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2014] [Accepted: 12/29/2014] [Indexed: 12/28/2022]
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30
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Amin AH, El-Missiry MA, Othman AI. Melatonin ameliorates metabolic risk factors, modulates apoptotic proteins, and protects the rat heart against diabetes-induced apoptosis. Eur J Pharmacol 2015; 747:166-73. [DOI: 10.1016/j.ejphar.2014.12.002] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 11/30/2014] [Accepted: 12/04/2014] [Indexed: 12/14/2022]
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31
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Iglesias I, Albasanz JL, Martín M. Effect of Caffeine Chronically Consumed During Pregnancy on Adenosine A 1 and A 2A Receptors Signaling in Both Maternal and Fetal Heart from Wistar Rats. JOURNAL OF CAFFEINE RESEARCH 2014; 4:115-126. [PMID: 25538864 DOI: 10.1089/jcr.2014.0010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background: Caffeine is the most widely consumed psychoactive substance in the world, even during pregnancy. Its stimulatory effects are mainly due to antagonism of adenosine actions by blocking adenosine A1 and A2A receptors. Previous studies have shown that caffeine can cross the placenta and therefore modulate these receptors not only in the fetal brain but also in the heart. Methods: In the present work, the effect of caffeine chronically consumed during pregnancy on A1 and A2A receptors in Wistar rat heart, from both mothers and their fetuses, were studied using radioligand binding, Western-blotting, and adenylyl cyclase activity assays, as well as reverse transcription polymerase chain reaction. Results: Caffeine did not significantly alter A1R neither at protein nor at gene expression level in both the maternal and fetal heart. On the contrary, A2AR significantly decreased in the maternal heart, although mRNA was not affected. Gi and Gs proteins were also preserved. Finally, A1R-mediated inhibition of adenylyl cyclase activity did not change in the maternal heart, but A2AR mediated stimulation of this enzymatic activity significantly decreased according to the detected loss of this receptor. Conclusions: Opposite to the downregulation and desensitization of the A1R/AC pathway previously reported in the brain, these results show that this pathway is not affected in rat heart after caffeine exposure during pregnancy. In addition, A2AR is downregulated and desensitized in the maternal heart, suggesting a differential modulation of these receptor-mediated pathways by caffeine.
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Affiliation(s)
- Inmaculada Iglesias
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha , Ciudad Real, Spain
| | - Jose Luis Albasanz
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha , Ciudad Real, Spain . ; Facultad de Medicina de Ciudad Real; Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha , Ciudad Real, Spain
| | - Mairena Martín
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha , Ciudad Real, Spain . ; Facultad de Medicina de Ciudad Real; Departamento de Química Inorgánica, Orgánica y Bioquímica, Universidad de Castilla-La Mancha , Ciudad Real, Spain
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32
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Yuan X, He B, Lv Z, Luo S. Fabrication of self-assembling peptide nanofiber hydrogels for myocardial repair. RSC Adv 2014. [DOI: 10.1039/c4ra08582e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Abstract
Cell sheet engineering has enabled the production of confluent cell sheets stacked together for use as a cardiac patch to increase cell survival rate and engraftment after transplantation, thereby providing a promising strategy for high density stem cell delivery for cardiac repair. One key challenge in using cell sheet technology is the difficulty of cell sheet handling due to its weak mechanical properties. A single-layer cell sheet is generally very fragile and tends to break or clump during harvest. Effective transfer and stacking methods are needed to move cell sheet technology into widespread clinical applications. In this study, we developed a simple and effective micropipette based method to aid cell sheet transfer and stacking. The cell viability after transfer was tested and multi-layer stem cell sheets were fabricated using the developed method. Furthermore, we examined the interactions between stacked stem cell sheets and fibrin matrix. Our results have shown that the preserved ECM associated with the detached cell sheet greatly facilitates its adherence to fibrin matrix and enhances the cell sheet-matrix interactions. Accelerated fibrin degradation caused by attached cell sheets was also observed.
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Affiliation(s)
- Nikul G Patel
- Department of Biomedical Engineering; The University of Akron; Akron, OH USA
| | - Ge Zhang
- Department of Biomedical Engineering; The University of Akron; Akron, OH USA
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