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Saati-Zarei A, Damirchi A, Tousi SMTR, Babaei P. Myocardial angiogenesis induced by concurrent vitamin D supplementation and aerobic-resistance training is mediated by inhibiting miRNA-15a, and miRNA-146a and upregulating VEGF/PI3K/eNOS signaling pathway. Pflugers Arch 2023; 475:541-555. [PMID: 36689014 DOI: 10.1007/s00424-023-02788-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/01/2022] [Accepted: 11/24/2022] [Indexed: 01/24/2023]
Abstract
This study aimed to investigate the effects of co-treatment of aerobic-resistance training (ART), vitamin D3 (VD3) on cardiovascular function considering the involvement of microRNA-15a and microRNA-146a, vascular endothelial growth factor (VEGF), phosphatidylinositol-3 kinase (PI3K), and endothelial nitric oxide synthase (eNOS) after myocardial infarction (MI) in rats. To induce MI, male Wistar rats subcutaneously received isoproterenol for 2 days, then MI was confirmed by echocardiography. MI rats were divided into six groups (n = 8/group). MI + VD3, MI + sesame oil (Veh), MI + ART, MI + VD3 + ART, and MI + Veh + ART, and received the related treatments for 8 weeks. Exercise tests, echocardiography, real-time quantitative polymerase chain reaction (qRT-PCR), western blotting, and histological staining were performed after the end of treatments. The highest ejection fraction (EF%), fractional shortening (FS%), exercise capacity (EC), and maximal load test (MLT) amounts were observed in the groups treated with VD3, ART, and VD3 + ART (P < 0.05). These were accompanied by a significantly increased angiogenesis post-MI. Furthermore, the levels of circulating microRNA-15a and microRNA-146a were significantly decreased in these groups compared to MI rats that were together with a significant upregulation of cardiac VEGF, PI3K, and eNOS expression. Overall, the best results were observed in the group treated with VD3 + ART. Concurrent VD3 supplementation and ART attenuated microRNA-15a and microRNA-146a and induced angiogenesis via VEGF/PI3K/eNOS axis. This data demonstrate that concurrent VD3 supplementation and ART is a more efficient strategy than monotherapy to improve cardiac function post-MI.
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Affiliation(s)
- Alireza Saati-Zarei
- Department of Sport Physiology, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran
| | - Arsalan Damirchi
- Department of Sport Physiology, Faculty of Physical Education and Sport Sciences, University of Guilan, Rasht, Iran
| | - Seyed Mohammad Taghi Razavi Tousi
- Medical Biotechnology Research Center, School of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran.,Cardiovascular Diseases Research Center, Department of Cardiology, Heshmat Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Parvin Babaei
- Neuroscience Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran. .,Cellular & Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht , Iran. .,Department of Physiology, Faculty of Medicine, Guilan University of Medical Sciences, Rasht, Iran.
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Concurrent vitamin D supplementation and exercise training improve cardiac fibrosis via TGF-β/Smad signaling in myocardial infarction model of rats. J Physiol Biochem 2021; 77:75-84. [PMID: 33428175 DOI: 10.1007/s13105-020-00778-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 12/02/2020] [Indexed: 01/02/2023]
Abstract
Although the role of vitamin D in various types of disorders such as cancer and diabetes has been well recognized, its relation to cardiovascular diseases still remains equivocal. The present study aims to investigate the interactive effects of aerobic-resistance training (ART) and vitamin D3 (VD3) on both cardiac fibrosis and heart functions considering TGF-β1/Smad2, 3 (transforming growth factor-β1/mothers against decapentaplegic homolog 2/3) signaling in the myocardial infarction (MI) model of rats. Fifty-six male Wistar rats were divided into 2 groups of sham (n = 8), and MI (n = 48). Then, MI rats were divided into six groups of VD3, ART, VD3+ART, Veh, Veh+ART, and sedentary MI. The animals received the related treatments for 8 weeks, and then their functional exercise capacity (FEC) and strength gain (SG) were estimated through exercise tests. Ejection fraction (EF%) and fractional shortening (FS%) and serum level of VD3 were measured by echocardiography and ELISA, respectively. Cardiac expressions of TGF-β1, Smad2/3, and collagen I/III were assessed by western blotting and fibrosis by Masson's trichrome staining. The highest EF, parallel with the lowest expression of cardiac TGF-β1, Smad2/3, collagen I, and collagen III were observed in MI + VD3 (P = 0.021), MI + ART (P = 0.001), and MI + VD3 + ART (P < 0.001). Furthermore, similar to FS, the highest FEC and SG were related to the groups of MI + VD3 + ART and MI + ART compared to the MI group. In conclusion, our data indicate that concurrent vitamin D supplementation and ART, compared with monotherapy, successfully improve cardiac function and alleviate myocardial fibrosis via downregulating TGF-β1, Smad2/3 signaling, and also regulating collagen I and III expressions.
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Panneerselvam L, Raghunath A, Perumal E. Acute fluoride poisoning alters myocardial cytoskeletal and AMPK signaling proteins in rats. Int J Cardiol 2017; 229:96-101. [DOI: 10.1016/j.ijcard.2016.11.221] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 11/07/2016] [Indexed: 11/27/2022]
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Overholser BR, Zheng X, Pell C, Blickman A. Sudden death in the presence of overt beta-adrenergic receptor activation in guinea pigs immediately following isoflurane anesthesia. Vet Anaesth Analg 2010; 37:273-9. [PMID: 20456114 DOI: 10.1111/j.1467-2995.2010.00533.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
OBSERVATIONS A case series of sudden death is reported in five consecutive guinea pigs following anesthesia with inhalational isoflurane during beta-adrenergic receptor stimulation with isoproterenol. Sustained-release isoproterenol pellets or mini-osmotic pumps were implanted subcutaneously in male Dunkin-Hartley guinea pigs as part of a research study to assess the interplay of adrenergic receptor activation and the development of atrial arrhythmias. The continuous exposure to isoproterenol resulted in a similar presentation and eventual sudden death in all guinea pigs exposed to inhalational isoflurane between 15 to 40 minutes after discontinuation of anesthesia. Death occurred in guinea pigs in this case series despite the fact that doses of isoproterenol used were more than 10-fold lower than previously reported in guinea pigs in the absence of isoflurane anesthesia. The cause of death was suspected to be due to an interaction of isoproterenol with isoflurane anesthesia, as placebo implantation or anesthesia alone did not result in cardiac arrest. Of four subsequent guinea pigs anesthetized with the combination of xylazine and ketamine (X/K), three survived isoproterenol implantation for the full 21-day study period while one died perioperatively. CONCLUSIONS There was an increased rate of post-anesthetic mortality associated with isoproterenol pellet implantation in guinea pigs anesthetized with isoflurane compared to X/K. This may be due to the detrimental effects of the combination of isoflurane during overt beta-adrenergic receptor activation or cardioprotective effects of X/K anesthesia during beta-adrenergic receptor hyperactivity.
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Affiliation(s)
- Brian R Overholser
- School of Pharmacy and Pharmaceutical Sciences, Purdue University, 1001 West 10th Street, Indianapolis, IN 46202, USA.
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Shirinsky VP, Khapchaev AY, Stepanova OV. Molecular mechanisms of cardiomyogenesis and the prospects for cardiomyocyte regeneration in cardiac failure. Mol Biol 2008. [DOI: 10.1134/s0026893308050130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Anderson M, Moore D, Larson DF. Comparison of isoproterenol and dobutamine in the induction of cardiac hypertrophy and fibrosis. Perfusion 2008; 23:231-5. [DOI: 10.1177/0267659108100708] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Isoproterenol (Iso) was a clinical therapeutic that is now used as a research means for the induction of cardiac hypertrophy. Currently, dobutamine (Dob) has replaced Iso as the preferred inotropic β-adrenergic agent to wean patients from cardiopulmonary bypass and to sustain adequate cardiac function during the postoperative period. We sought to compare the cardiac structural and functional effects of long-term administration (7days) of Iso with Dob at a dose of 40μg/mouse/day in 12-week-old C57BL/6 female mice. Cardiac function was determined with transthoracic echo cardiography (ECHO) 24 hours after the last dose. Cardiac wet weights increased 33% and 24% in the Iso and Dob groups compared with controls ( p < 0.05). Dob and Iso significantly increased cardiac fibrosis and decreased cardiac function with chronic administration. Administration also resulted in increased left atrial size, suggesting that both Dob and Iso decreased LV compliance, but did not induce heart failure. In conclusion, chronic administration of Dob may have a detrimental effect on cardiac structure and function.
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Affiliation(s)
- M Anderson
- Circulatory Sciences Graduate Perfusion Program, The University of Arizona, Tucson, AZ, USA
| | - D Moore
- Circulatory Sciences Graduate Perfusion Program, The University of Arizona, Tucson, AZ, USA
| | - DF Larson
- Circulatory Sciences Graduate Perfusion Program, The University of Arizona, Tucson, AZ, USA
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Zhang J, Knapton A, Lipshultz SE, Weaver JL, Herman EH. Isoproterenol-induced Cardiotoxicity in Sprague-Dawley Rats: Correlation of Reversible and Irreversible Myocardial Injury with Release of Cardiac Troponin T and Roles of iNOS in Myocardial Injury. Toxicol Pathol 2008; 36:277-8. [DOI: 10.1177/0192623307313010] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The present study was undertaken to characterize myocardial lesions in the rat induced by low doses of isoproterenol (Iso) and to correlate lesion severity with release of cardiac troponin T (cTnT) and changes in myocyte iNOS expression. Two types of cardiac injury patterns were observed. A Type I response, noted 3 or 6 hours postdosing with 8, 16, 32, or 64 μg/kg Iso, included potential reversible myocardial alterations associated with slight increases in serum cTnT (< 0.3 ng/mL) and a slight reduction in myocyte cTnT immunoreactivity. The second type of response noted 3, 6, 12, 24 or 48 hours postdosing with 125, 250, or 500 μg/kg Iso consisted of irreversible myocyte alterations, together with significant increases in serum cTnT (3–14 ng/mL) and a marked reduction of cTnT immunoreactivity. By 48 hours the hearts of rats dosed with 125–500 μg/kg Iso had developed interstitial fibrosis, and serum cTnT had declined to near control levels (0.06–0.18 ng/mL). Increases in iNOS immunoreactivity correlated with the lesion severity. These findings suggest that low doses of Iso exert complex effects on the myocardium and that the generation of NO through increased expression of iNOS could be an important factor in the pathogenesis of myocyte injury.
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Affiliation(s)
- Jun Zhang
- Division of Applied Pharmacology Research, Center for Drug Evaluation and Research, United States Food and Drug Administration, Silver Spring, Maryland, USA
| | - Alan Knapton
- Division of Applied Pharmacology Research, Center for Drug Evaluation and Research, United States Food and Drug Administration, Silver Spring, Maryland, USA
| | - Steven E. Lipshultz
- Department of Pediatrics, Sylvester Comprehensive Cancer Center, University of Miami, Miller School of Medicine, Miami, Florida, USA
| | - James L. Weaver
- Division of Applied Pharmacology Research, Center for Drug Evaluation and Research, United States Food and Drug Administration, Silver Spring, Maryland, USA
| | - Eugene H. Herman
- Division of Applied Pharmacology Research, Center for Drug Evaluation and Research, United States Food and Drug Administration, Silver Spring, Maryland, USA
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Chen XJ, Meng D, Feng L, Bian YY, Li P, Yang D, Cao KJ, Zhang JN. Protective effect of astragalosides on myocardial injury by isoproterenol in SD rats. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2007; 34:1015-25. [PMID: 17163590 DOI: 10.1142/s0192415x0600448x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We have extracted and roughly purified astragalosides (AS) from Astragalus membranaceus, a natural herb used as a traditional Chinese medicine, regarded to have pharmacodynamic benefits of protecting injured myocardium. We hypothesized that the astragalosides might exert beneficial effect in myocardial lesion by preserving both energy metabolism and Ca(2+) homeostasis. Sprague-Dauley (SD) rats were injected with isoproterenol (ISO) subcutaneous (s.c.) at a dose of 5 mg/kg/day consecutively for two days as models and were treated with astragalosides and trimetazidine intraperitoneally (i.p.) respectively, at a dose of 5 mg/kg/day one day prior to isoproterenol for 8 days. The histological changes were alleviated in isoproterenol-injected SD rats treated with astragalosides. Compared with isoproterenol-injected rats, the concentration of myocardial intracellular [Ca(2+)]i was decreased, L-type Ca(2+) current density and sarcoplasmic reticulum (SR) Ca(2+) load were recovered, the concentration of myocardial ATP was increased and phosphocreatine (PCr) was decreased in rats treated with astragalosides. In conclusion, the efficacious treatment of astragalosides for myocardial injury might be through regulating intracellular Ca(2+) homeostasis and energy metabolism.
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Affiliation(s)
- Xiang-Jian Chen
- Research Institute of Cardiovascular Disease, First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Dudnakova TV, Stepanova OV, Dergilev KV, Chadin AV, Shekhonin BV, Watterson DM, Shirinsky VP. Myosin light chain kinase colocalizes with nonmuscle myosin IIB in myofibril precursors and sarcomeric Z-lines of cardiomyocytes. ACTA ACUST UNITED AC 2006; 63:375-83. [PMID: 16634081 DOI: 10.1002/cm.20127] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Myosin light chain kinase (MLCK) is a key regulator of various forms of cell motility involving actin and myosin II. MLCK is widely present in vertebrate tissues including the myocardium. However, the role of MLCK in cardiomyocyte function is not known. Previous attempts to gain insight into possible roles and identify potential molecular partners were disappointing and equivocal due to cross reactivity of early antibodies with striated muscle MLCK, which has a different genetic locus and a divergent amino acid sequence from the above mentioned enzyme. Using an immunofluorescence approach and a panel of antibodies directed against MLCK, cytoskeletal, and sarcomeric proteins, we localized MLCK to myofibril precursors and Z-lines of sarcomeres in embryonic and adult cardiomyocytes. The same structures contained nonmuscle myosin IIB implicating this protein as a possible target of MLCK. Our results suggest a role for MLCK in cardiomyocyte differentiation and contraction through regulation of nonmuscle myosin IIB.
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Affiliation(s)
- T V Dudnakova
- Laboratory of Cell Motility, Russian Cardiology Research Center, Moscow, Russia
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