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Dexmedetomidine preconditioning attenuates ischemia/reperfusion injury in isolated rat hearts with endothelial dysfunction. Biomed Pharmacother 2019; 114:108837. [PMID: 30965239 DOI: 10.1016/j.biopha.2019.108837] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/30/2019] [Accepted: 03/31/2019] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND AND PURPOSES Dexmedetomidine preconditioning (DP) can mimic pharmacological preconditioning and induce cardiac protection. There are controversies on the roles of coronary endothelia in cardioprotection of dexmedetomidine. Herein, we tested the hypothesis that protection of dexmedetomidine is not endothelial dependent in heart against myocardial ischemia/reperfusion (I/R) injury. METHODS Langendorff-perfused rat hearts were pretreated by 60 mM of potassium to produce endothelial dysfunction (ED), then medicated with dexmedetomidine, and subsequently subjected to 30 min of global ischemia followed by 60 min of reperfusion. To investigate the cardioprotective effect of dexmedetomidine in heart with ED, isolated rat hearts were randomly divided into the following six groups: sham, I/R, DP, ED, ED + I/R, and ED + DP + I/R. Heart rates, left ventricular function, and coronary perfusion pressure were assessed for each heart. Infarct size was evaluated by triphenyltetrazolium chloride staining. High-sensitivity cardiac troponin T (hs-cTNT) of coronary flow perfusion was determined. RESULTS After the isolated hearts with pretreatment of 60 mM of potassium chloride, diastolic function of coronary endothelia in performance of response to histamine was significantly decreased (P < 0.05). DP attenuated I/R-induced infarct size of the left ventricle (P < 0.05) and decreased hs-cTNT (P < 0.05). Additionally, left ventricular developed pressure, +dp/dtmax, and -dp/dtmax were elevated in rat hearts pretreated with dexmedetomidine. Furthermore, dexmedetomidine-mediated cardiac protection against I/R injury was still remained in isolated hearts with coronary ED. CONCLUSION Continuous perfusion of 60 mM of potassium for 10 min can produce coronary ED in isolated rat hearts. Dexmedetomidine maintains its protective function against I/R injury in heart with coronary ED. Myocardial protection of dexmedetomidine is non-endothelial function dependent in alleviating I/R injury.
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Fauzia E, Barbhuyan TK, Shrivastava AK, Kumar M, Garg P, Khan MA, Robertson AAB, Raza SS. Chick Embryo: A Preclinical Model for Understanding Ischemia-Reperfusion Mechanism. Front Pharmacol 2018; 9:1034. [PMID: 30298003 PMCID: PMC6160536 DOI: 10.3389/fphar.2018.01034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/27/2018] [Indexed: 12/19/2022] Open
Abstract
Ischemia-reperfusion (I/R)-related disorders, such as stroke, myocardial infarction, and peripheral vascular disease, are among the most frequent causes of disease and death. Tissue injury or death may result from the initial ischemic insult, primarily determined by the magnitude and duration of the interruption in blood supply and then by the subsequent reperfusion-induced damage. Various in vitro and in vivo models are currently available to study I/R mechanism in the brain and other tissues. However, thus far, no in ovo I/R model has been reported for understanding the I/R mechanisms and for faster drug screening. Here, we developed an in ovo Hook model of I/R by occluding and releasing the right vitelline artery of a chick embryo at 72 h of development. To validate the model and elucidate various underlying survival and death mechanisms, we employed imaging (Doppler blood flow imaging), biochemical, and blotting techniques and evaluated the cell death mechanism: autophagy and inflammation caused by I/R. In conclusion, the present model is useful in parallel with established in vitro and in vivo I/R models to understand the mechanisms of I/R development and its treatment.
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Affiliation(s)
- Eram Fauzia
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, India
| | - Tarun Kumar Barbhuyan
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, India
| | - Amit Kumar Shrivastava
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, India
| | - Manish Kumar
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, India
| | - Paarth Garg
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, India
| | - Mohsin Ali Khan
- Era's Lucknow Medical College and Hospital, Era University, Lucknow, India
| | - Avril A B Robertson
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, Australia
| | - Syed Shadab Raza
- Laboratory for Stem Cell and Restorative Neurology, Department of Biotechnology, Era's Lucknow Medical College and Hospital, Era University, Lucknow, India.,Department of Stem Cell Biology and Regenerative Medicine, Era University, Lucknow, India
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Umaru B, Pyriochou A, Kotsikoris V, Papapetropoulos A, Topouzis S. ATP-sensitive potassium channel activation induces angiogenesis in vitro and in vivo. J Pharmacol Exp Ther 2015; 354:79-87. [PMID: 25977483 DOI: 10.1124/jpet.114.222000] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 05/13/2015] [Indexed: 12/19/2022] Open
Abstract
Intense research is conducted to identify new molecular mechanisms of angiogenesis. Previous studies have shown that the angiogenic effects of hydrogen sulfide (H2S) depend on the activation of ATP-sensitive potassium channels (KATP) and that C-type natriuretic peptide (CNP), which can act through KATP, promotes endothelial cell growth. We therefore investigated whether direct KATP activation induces angiogenic responses and whether it is required for the endothelial responses to CNP or vascular endothelial growth factor (VEGF). Chick chorioallantoic membrane (CAM) angiogenesis was similarly enhanced by the direct KATP channel activator 2-nicotinamidoethyl acetate (SG-209) and by CNP or VEGF. The KATP inhibitors glibenclamide and 5-hydroxydecanoate (5-HD) reduced basal and abolished CNP-induced CAM angiogenesis. In vitro, the direct KATP openers nicorandil and SG-209 and the polypeptides VEGF and CNP increased proliferation and migration in bEnd.3 mouse endothelial cells. In addition, VEGF and CNP induced cord-like formation on Matrigel by human umbilical vein endothelial cells (HUVECs). All these in vitro endothelial responses were effectively abrogated by glibenclamide or 5-HD. In HUVECs, a small-interfering RNA-mediated decrease in the expression of the inwardly rectifying potassium channel (Kir) 6.1 subunit impaired cell migration and network morphogenesis in response to either SG-209 or CNP. We conclude that 1) direct pharmacologic activation of KATP induces angiogenic effects in vitro and in vivo, 2) angiogenic responses to CNP and VEGF depend on KATP activation and require the expression of the Kir6.1 KATP subunit, and 3) KATP activation may underpin angiogenesis to a variety of vasoactive stimuli, including H2S, VEGF, and CNP.
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Affiliation(s)
- Bukar Umaru
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Rio-Patras, Greece (B.U., A.Py., V.K., S.T.); and Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece (A.Pa.)
| | - Anastasia Pyriochou
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Rio-Patras, Greece (B.U., A.Py., V.K., S.T.); and Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece (A.Pa.)
| | - Vasileios Kotsikoris
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Rio-Patras, Greece (B.U., A.Py., V.K., S.T.); and Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece (A.Pa.)
| | - Andreas Papapetropoulos
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Rio-Patras, Greece (B.U., A.Py., V.K., S.T.); and Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece (A.Pa.)
| | - Stavros Topouzis
- Laboratory of Molecular Pharmacology, Department of Pharmacy, University of Patras, Rio-Patras, Greece (B.U., A.Py., V.K., S.T.); and Department of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece (A.Pa.)
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Koufaki M, Fotopoulou T, Iliodromitis EK, Bibli SI, Zoga A, Kremastinos DT, Andreadou I. Discovery of 6-[4-(6-nitroxyhexanoyl)piperazin-1-yl)]-9H-purine, as pharmacological post-conditioning agent. Bioorg Med Chem 2012; 20:5948-56. [DOI: 10.1016/j.bmc.2012.07.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 07/05/2012] [Accepted: 07/23/2012] [Indexed: 10/28/2022]
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Rapposelli S, Breschi MC, Calderone V, Digiacomo M, Martelli A, Testai L, Vanni M, Balsamo A. Synthesis and biological evaluation of 5-membered spiro heterocycle-benzopyran derivatives against myocardial ischemia. Eur J Med Chem 2011; 46:966-73. [DOI: 10.1016/j.ejmech.2011.01.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 11/25/2010] [Accepted: 01/06/2011] [Indexed: 10/18/2022]
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Zhao N, Liu YY, Wang F, Hu BH, Sun K, Chang X, Pan CS, Fan JY, Wei XH, Li X, Wang CS, Guo ZX, Han JY. Cardiotonic pills, a compound Chinese medicine, protects ischemia-reperfusion-induced microcirculatory disturbance and myocardial damage in rats. Am J Physiol Heart Circ Physiol 2010; 298:H1166-76. [DOI: 10.1152/ajpheart.01186.2009] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cardiotonic pills (CP) is a compound Chinese medicine widely used in China, as well as other countries, for the treatment of cardiovascular disease. However, limited data are available regarding the mechanism of action of CP on myocardial function during ischemia-reperfusion (I/R) injury. In this study, we examined the effect of CP on I/R-induced coronary microcirculatory disturbance and myocardial damage. Male Sprague-Dawley rats were subjected to left coronary anterior descending branch occlusion for 30 min followed by reperfusion with or without pretreatment with CP (0.1, 0.4, or 0.8 g/kg). Coronary blood flow, vascular diameter, velocity of red blood cells, and albumin leakage were evaluated in vivo after reperfusion. Neutrophil expression of CD18, malondialdehyde, inhibitor-κBα, myocardial infarction, endothelial expression of intercellular adhesion molecule 1, apoptosis-related proteins, and histological and ultrastructural evidence of myocardial damage were assessed after reperfusion. Pretreatment with CP (0.8 g/kg) significantly attenuated the I/R-induced myocardial microcirculatory disturbance, including decreased coronary blood flow and red blood cell velocity in arterioles, increased expression of CD18 on neutrophils and intercellular adhesion molecule 1 on endothelial cells, and albumin leakage from venules. In addition, the drug significantly ameliorated the I/R-induced myocardial damage and apoptosis indicated by increased malondialdehyde, infarct size, myocardial ultrastructural changes, terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling-positive myocardial cells, inhibitor-κBα degradation, and expression of Bcl-2, Bax, and caspase-3 in myocardial tissues. The results provide evidence for the potential role of CP in preventing microcirculatory disturbance and myocardial damage following I/R injury.
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Affiliation(s)
- Na Zhao
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Yu-Ying Liu
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Fang Wang
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Bai-He Hu
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Kai Sun
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Xin Chang
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Chun-Shui Pan
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Jing-Yu Fan
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Xiao-Hong Wei
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Xiang Li
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Chuan-She Wang
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Zhi-Xin Guo
- Tasly Microcirculation Research Center, Health Science Center, and
| | - Jing-Yan Han
- Tasly Microcirculation Research Center, Health Science Center, and
- Department of Integration of Chinese and Western Medicine, School of Basic Medical Sciences, Peking University, Beijing, China
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Le Grand B, Pignier C, Létienne R, Colpaert F, Cuisiat F, Rolland F, Mas A, Borras M, Vacher B. Na+ Currents in Cardioprotection: Better to Be Late. J Med Chem 2009; 52:4149-60. [DOI: 10.1021/jm900296e] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Koini EN, Papazafiri P, Vassilopoulos A, Koufaki M, Horváth Z, Koncz I, Virág L, Papp GJ, Varró A, Calogeropoulou T. 5,7,8-Trimethyl-benzopyran and 5,7,8-Trimethyl-1,4-benzoxazine Aminoamide Derivatives as Novel Antiarrhythmics against Ischemia−Reperfusion Injury. J Med Chem 2009; 52:2328-40. [DOI: 10.1021/jm801228h] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eftychia N. Koini
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
| | - Panagiota Papazafiri
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
| | - Athanasios Vassilopoulos
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
| | - Maria Koufaki
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
| | - Zoltán Horváth
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
| | - István Koncz
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
| | - László Virág
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
| | - Gy J. Papp
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
| | - Andràs Varró
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
| | - Theodora Calogeropoulou
- Institute of Organic and Pharmaceutical Chemistry, National Hellenic Research Foundation, 48 Vas. Constantinou Avenue, 116 35 Athens, Greece, Department of Animal and Human Physiology, School of Biology, University of Athens, Panepistimiopolis, 15784 Athens, Greece, Department of Pharmacology and Pharmacotherapy, University of Szeged, Szeged Dom ter 12 H-6720, Hungary, Research Unit for Cardiovascular Pharmacology, Hungarian Academy of Sciences, Szeged Hungary
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