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Veeram A, Shaikh TB, Kaur R, Chowdary EA, Andugulapati SB, Sistla R. Yohimbine Treatment Alleviates Cardiac Inflammation/Injury and Improves Cardiac Hemodynamics by Modulating Pro-Inflammatory and Oxidative Stress Indicators. Inflammation 2024; 47:1423-1443. [PMID: 38466531 DOI: 10.1007/s10753-024-01985-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/16/2024] [Accepted: 02/05/2024] [Indexed: 03/13/2024]
Abstract
Acute myocarditis, also known as myocardial inflammation, is a self-limited condition caused by systemic infection with cardiotropic pathogens, primarily viruses, bacteria, or fungi. Despite significant research, inflammatory cardiomyopathy exacerbated by heart failure, arrhythmia, or left ventricular dysfunction and it has a dismal prognosis. In this study, we aimed to evaluate the therapeutic effect of yohimbine against lipopolysaccharide (LPS) induced myocarditis in rat model. The anti-inflammatory activity of yohimbine was assessed in in-vitro using RAW 264.7 and H9C2 cells. Myocarditis was induced in rats by injecting LPS (10 mg/kg), following the rats were treated with dexamethasone (2 mg/kg) or yohimbine (2.5, 5, and 10 mg/kg) for 12 h and their therapeutic activity was examined using various techniques. Yohimbine treatment significantly attenuated the LPS-mediated inflammatory markers expression in the in-vitro model. In-vivo studies proved that yohimbine treatment significantly reduced the LPS-induced increase of cardiac-specific markers, inflammatory cell counts, and pro-inflammatory markers expression compared to LPS-control samples. LPS administration considerably affected the ECG, RR, PR, QRS, QT, ST intervals, and hemodynamic parameters, and caused abnormal pathological parameters, in contrast, yohimbine treatment substantially improved the cardiac parameters, mitigated the apoptosis in myocardial cells and ameliorated the histopathological abnormalities that resulted in an improved survival rate. LPS-induced elevation of cardiac troponin-I, myeloperoxidase, CD-68, and neutrophil elastase levels were significantly attenuated upon yohimbine treatment. Further investigation showed that yohimbine exerts an anti-inflammatory effect partly by modulating the MAPK pathway. This study emphasizes yohimbine's therapeutic benefit against LPS-induced myocarditis and associated inflammatory markers response by regulating the MAPK pathway.
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Affiliation(s)
- Anjali Veeram
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201 002, India
| | - Taslim B Shaikh
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201 002, India
| | - Rajwinder Kaur
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, Telangana, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201 002, India
| | - E Abhisheik Chowdary
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, Telangana, India
| | - Sai Balaji Andugulapati
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, Telangana, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201 002, India.
| | - Ramakrishna Sistla
- Department of Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500 007, Telangana, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201 002, India.
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Singh D, Singh R, Akindele AJ. Therapeutic potential of nicorandil beyond anti-anginal drug: A review on current and future perspectives. Heliyon 2024; 10:e28922. [PMID: 38617945 PMCID: PMC11015415 DOI: 10.1016/j.heliyon.2024.e28922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/16/2024] Open
Abstract
Nicorandil (NIC) is a well-known anti-anginal agent, which has been recommended as one of the second-line treatments for chronic stable angina as justified by the European guidelines. It shows an efficacy equivalent to that of classic anti-anginal agents. NIC has also been used clinically in various cardiovascular diseases such as variant or unstable angina and reperfusion-induced damage following coronary angioplasty or thrombolysis. Different mechanisms have been involved in the protective effects of nicorandil in various diseases, including opening of adenosine triphosphate-sensitive potassium (KATP) channel and donation of nitric oxide (NO). In recent years, NIC has been found to show numerous pharmacological activities such as neuroprotective, nephroprotective, hepatoprotective, cardioprotective, and testicular protective effects, among other beneficial effects on the body. The present review dwells on the pharmacological potentials of NIC beyond its anti-anginal action.
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Affiliation(s)
- Dhirendra Singh
- M.M College of Pharmacy, Maharishi Markandeshwar Mullana, Ambala, Haryana, India
| | - Randhir Singh
- Departments of Pharmacology, Central University of Punjab, Bhatinda, Punjab, India
| | - Abidemi James Akindele
- Department of Pharmacology, Therapeutics & Toxicology, Faculty of Basic Medical Sciences, College of Medicine, University of Lagos, Idi-Araba, P.M.B. 12003 Lagos, Nigeria
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Li L, Li L, Cao C, Guo F, Wang A, Lin L, Liu Z, Meng H, Zhang P, Xin G, Liu J, Ren J, Fu J. Investigation of the active ingredients of Shuangshen Ningxin Fomula and the mechanism underlying their protective effects against myocardial ischemia-reperfusion injury by mass spectrometric imaging. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 123:155184. [PMID: 37951149 DOI: 10.1016/j.phymed.2023.155184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/20/2023] [Accepted: 11/02/2023] [Indexed: 11/13/2023]
Abstract
BACKGROUND Traditional Chinese medicine, particularly Shuangshen Ningxin Capsule (SSNX), has been studied intensely. SSNX includes total ginseng saponins (from Panax ginseng Meyer), total phenolic acids from Salvia miltiorrhiza Bunge, and total alkaloids from Corydalis yanhusuo W. T. Wang. It has been suggested to protect against myocardial ischemia by a mechanism that has not been fully elucidated. METHODS The composition and content of SSNX were determined by UHPLC-Q-TOFQ-TOF / MS. Then, a rat model of myocardial ischemia-reperfusion injury was established, and the protective effect of SSNX was measured. The protective mechanism was investigated using spatial metabolomics. RESULTS We found that SSNX significantly improved left ventricular function and ameliorated pathological damages in rats with myocardial ischemia-reperfusion injury. Using matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS), the protective mechanism of SSNX was examined by comparing the monomer components of drugs targeted in myocardial tissue with the distribution of myocardial energy metabolism-related molecules and phospholipids. Interestingly, some lipids display inconsistent content distribution in the myocardial ischemia risk and non-risk zones. These discrepancies reflect the degree of myocardial injury in different regions. CONCLUSION These findings suggest that SSNX protects against myocardial ischemia-reperfusion injury by correcting abnormal myocardial energy metabolism, changing the levels and distribution patterns of phospholipids, and stabilizing the structure of the myocardial cell membrane. MALDI-TOF MS can detect the spatial distribution of small molecule metabolites in the myocardium and can be used in pharmacological research.
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Affiliation(s)
- Lingmei Li
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China; Kunshan Hospital of Traditional Chinese Medicine, Jiangsu 215300, China
| | - Lei Li
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Ce Cao
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Fan Guo
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Aoao Wang
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Li Lin
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Zixin Liu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Hongxu Meng
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Peng Zhang
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Gaojie Xin
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Jianxun Liu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China.
| | - Junguo Ren
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China.
| | - Jianhua Fu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Beijing Key Laboratory of Chinese Materia Pharmacology, China Academy of Chinese Medical Sciences, Beijing 100091, China.
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Jia F, Chen Y, Xin G, Li L, Liu Z, Xu S, Gao J, Meng H, Shi Y, Ma Y, Li L, Fu J. Shuangshen Ningxin capsule alleviates myocardial ischemia-reperfusion injury in miniature pigs by modulating mitophagy: network pharmacology and experiments in vivo. Chin Med 2023; 18:120. [PMID: 37730607 PMCID: PMC10510173 DOI: 10.1186/s13020-023-00810-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 07/20/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Myocardial ischemia/reperfusion injury (MI/RI) is involved in a variety of pathological states for which there is no effective treatment exists. Shuangshen Ningxin (SSNX) capsule which is developed by Xiyuan Hospital, Chinese Academy of Traditional Chinese Medicine has been demonstrated to alleviate MI/RI, but its mechanism remains to be further elucidated. METHODS The MI/RI miniature pigs model was constructed to assess the pharmacodynamics of SSNX by blocking the proximal blood flow of the left anterior descending branch of the cardiac coronary artery through an interventional balloon. The principal chemical compounds and potential targets of SSNX were screened by HPLC-MS and SwissTargetPrediction. The targets of MI/RI were identified based on Online Mendelian Inheritance in Man (OMIM) and GeneCards. Cytoscape 3.9.0 was applied to construct a protein-protein interaction (PPI) network, and Gene Ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were performed using metascape. To further validate the mechanism of SSNX, Molecular docking, Transmission electron microscopy, and Western blot analysis were used to test the effectiveness of targets in related pathways. RESULTS Our results indicated that SSNX significantly improved cardiac function, attenuated myocardial I/R injury. Through network analysis, a total of 15 active components and 201 targets were obtained from SSNX, 75 of which are potential targets for the treatment of MI/RI. KEGG and MCODE analysis showed that SSNX is involved in the mitophagy signaling pathway, and ginsenoside Rg1, ginsenoside Rb1 and ginsenoside Rb2 are key components associated with the mitophagy. Further experimental results proved that SSNX protected mitochondrial structure and function, and significantly reduced the expression of mitophagy-related proteins PTEN-induced putative kinase 1 (PINK1), Parkin, FUN14 domain containing 1 (FUNDC1) and Bcl-2/E1B-19 kDa interacting protein 3 (BNIP3) in MI/RI miniature pigs. CONCLUSION In our study, the integration of network pharmacology and experiments in vivo demonstrated that SSNX interfered with MI/RI by inhibiting mitophagy.
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Affiliation(s)
- Feifan Jia
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Yuanyuan Chen
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Gaojie Xin
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Lingmei Li
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Zixin Liu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Sujuan Xu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Jiaming Gao
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Hongxu Meng
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Yue Shi
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Yanlei Ma
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Lei Li
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China.
| | - Jianhua Fu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China.
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DEMİRHAN İ, BELGE KURUTAŞ E. Kalp İskemi-Reperfüzyonunda Vitaminlerin Rolü. İSTANBUL GELIŞIM ÜNIVERSITESI SAĞLIK BILIMLERI DERGISI 2021. [DOI: 10.38079/igusabder.856218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Shanmugam K, Boovarahan SR, Prem P, Sivakumar B, Kurian GA. Fisetin Attenuates Myocardial Ischemia-Reperfusion Injury by Activating the Reperfusion Injury Salvage Kinase (RISK) Signaling Pathway. Front Pharmacol 2021; 12:566470. [PMID: 33762932 PMCID: PMC7982788 DOI: 10.3389/fphar.2021.566470] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 01/05/2021] [Indexed: 12/20/2022] Open
Abstract
Ischemia-reperfusion (I/R) injury is an unavoidable injury that occurs during revascularization procedures. In the previous study, we reported that fisetin is a natural flavonoid that attenuates I/R injury by suppressing mitochondrial oxidative stress and mitochondrial dysfunction. Though fisetin is reported as a GSK3β inhibitor, it remains unclear whether it attenuates myocardial ischemia by activating the phosphoinositide 3-kinase/protein kinase B (PI3K/Akt) pathway, thereby inhibiting the downstream GSK3β, or by directly interacting with GSK3β while rendering its cardioprotection. In this study, the research team investigates the possible mechanism of action of fisetin while rendering its cardioprotective effect against myocardial I/R injury in rats. For this investigation, the team utilized two myocardial I/R models: Ligation of the left anterior descending artery and Langendorff isolated heart perfusion system. The latter has no neurohormonal influences. The PI3K inhibitor (Wortmannin, 0.015 mg/kg), GSK3β inhibitor (SB216763, 0.7 mg/kg), and fisetin (20 mg/kg) were administered intraperitoneally before inducing myocardial I/R. The result of this study reveals that the administration of fisetin decreases the myocardial infarct size, apoptosis, lactate dehydrogenase, and creatine kinase in serum\perfusate of the rat hearts subjected to I/R. However, the inhibition of PI3K with Wortmannin significantly reduced the cardioprotective effect of fisetin both in the ex vivo and vivo models. The administration of GSK3β inhibitor after the administration of fisetin and Wortmannin, re-establishing the cardioprotection, indicates the major role of PI3K in fisetin action. Changes in myocardial oxidative stress (level) and mitochondrial functional preservation of interfibrillar and subsarcolemmal mitochondria support the above findings. Hence, the team here reports that fisetin conferred its cardioprotection against I/R injury by activating the PI3K/Akt/GSK3β signaling pathway in rat hearts.
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Affiliation(s)
- Karthi Shanmugam
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
- Vascular Biology Lab, SASTRA Deemed University, Thanjavur, India
| | | | - Priyanka Prem
- Vascular Biology Lab, SASTRA Deemed University, Thanjavur, India
| | | | - Gino A Kurian
- School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, India
- Vascular Biology Lab, SASTRA Deemed University, Thanjavur, India
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Efficacy of nicorandil on the prevention of contrast-induced nephropathy in patients with coronary heart disease undergoing percutaneous coronary intervention. Coron Artery Dis 2019; 31:284-288. [PMID: 31658134 DOI: 10.1097/mca.0000000000000826] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES The purpose of this study was to explore the effect of nicorandil on the incidence of contrast-induced nephropathy in patients with coronary heart disease undergoing percutaneous coronary intervention. METHODS This study randomized 300 patients undergoing percutaneous coronary intervention to receive conventional treatment in the control group (hydration only; n = 150) vs. nicorandil therapy (nicorandil 10 mg three times daily plus hydration; n = 150). The primary endpoint was the incidence of contrast-induced nephropathy, defined as rise in serum creatinine ≥44.2 μmol/L or >25% above baseline within 72 hours after exposure to contrast administered during percutaneous coronary intervention. Secondary endpoints included differences in post-percutaneous coronary intervention serum creatinine, blood urea nitrogen, creatinine clearance rate, cystatin-C, and occurrence of major adverse events. RESULTS Contrast-induced nephropathy incidence was 3.3% (5/150) in the nicorandil group vs. 10.7% (16/150) in the control group (P < 0.05). At 48 and 72 hours after contrast administration, cystatin-C levels were significantly lower and creatinine clearance rate were significantly higher with nicroandil therapy compared to conventional treatment (all P values <0.05). No statistical difference was observed in the incidence of major post-procedure side effect events in hospital and fourteen days of follow-up period between the nicorandil group and control group (3.3% vs. 4.0%, P > 0.05). CONCLUSION Compared to conventional treatment, oral nicorandil therapy was associated with less contrast-induced nephropathy and improved renal function following contrast administration during percutaneous coronary intervention.
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Fisetin Confers Cardioprotection against Myocardial Ischemia Reperfusion Injury by Suppressing Mitochondrial Oxidative Stress and Mitochondrial Dysfunction and Inhibiting Glycogen Synthase Kinase 3 β Activity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:9173436. [PMID: 29636855 PMCID: PMC5845518 DOI: 10.1155/2018/9173436] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 01/01/2018] [Indexed: 01/25/2023]
Abstract
Acute myocardial infarction (AMI) is the leading cause of morbidity and mortality worldwide. Timely reperfusion is considered an optimal treatment for AMI. Paradoxically, the procedure of reperfusion can itself cause myocardial tissue injury. Therefore, a strategy to minimize the reperfusion-induced myocardial tissue injury is vital for salvaging the healthy myocardium. Herein, we investigated the cardioprotective effects of fisetin, a natural flavonoid, against ischemia/reperfusion (I/R) injury (IRI) using a Langendorff isolated heart perfusion system. I/R produced significant myocardial tissue injury, which was characterized by elevated levels of lactate dehydrogenase and creatine kinase in the perfusate and decreased indices of hemodynamic parameters. Furthermore, I/R resulted in elevated oxidative stress, uncoupling of the mitochondrial electron transport chain, increased mitochondrial swelling, a decrease of the mitochondrial membrane potential, and induction of apoptosis. Moreover, IRI was associated with a loss of the mitochondrial structure and decreased mitochondrial biogenesis. However, when the animals were pretreated with fisetin, it significantly attenuated the I/R-induced myocardial tissue injury, blunted the oxidative stress, and restored the structure and function of mitochondria. Mechanistically, the fisetin effects were found to be mediated via inhibition of glycogen synthase kinase 3β (GSK3β), which was confirmed by a biochemical assay and molecular docking studies.
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Ravindran S, Ramachandran K, Kurian GA. Sodium thiosulfate mediated cardioprotection against myocardial ischemia-reperfusion injury is defunct in rat heart with co-morbidity of vascular calcification. Biochimie 2018; 147:80-88. [PMID: 29366934 DOI: 10.1016/j.biochi.2018.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 01/11/2018] [Indexed: 12/27/2022]
Abstract
Sodium thiosulfate (STS) has shown promising effects in amelioration of myocardial ischemia-reperfusion injury (IR) in a rat model and is clinically useful in the treatment of chronic kidney disease (CKD) associated calciphylaxis. As the prevalence of cardiac complications is higher in CKD, we tested the effectiveness of STS in a rat model of adenine-induced vascular calcification and subjected the heart to IR. We observed an increased infarct size (29%) by TTC staining, lactate dehydrogenase (54%) and creatine kinase (32%) release in the coronary perfusate and altered hemodynamics compared to a normal rat treated with STS and subjected to IR. As functional mitochondria are essential for preserving heart from the detrimental effects of IR, we found that calcification induced mitochondrial dysfunction (reduced RCR->80%, P/O ratio->30%, ΔΨ->10% and swelling- 27%), could not be restored efficiently by STS treatment. Therefore we used nicorandil (mitochondrial potassium channel opener) along with STS as a combination therapy to treat the diseased heart and found an improvement in cardioprotection against IR injury, compared to STS alone. Upon evaluating these hearts, we found that both the cardiac mitochondria namely interfibrillar and subsarcolemmal were functionally well preserved.
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Affiliation(s)
- Sriram Ravindran
- Vascular Biology Lab, SASTRA Deemed University, Thanjavur, 613401, India
| | | | - Gino A Kurian
- Vascular Biology Lab, SASTRA Deemed University, Thanjavur, 613401, India.
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Fibroblast growth factor 21 plays an inhibitory role in vascular calcification in vitro through OPG/RANKL system. Biochem Biophys Res Commun 2017; 491:578-586. [PMID: 28774557 DOI: 10.1016/j.bbrc.2017.07.160] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 07/28/2017] [Indexed: 01/08/2023]
Abstract
Vascular calcification is prevalent and associated with adverse outcome without available therapy. The benefits of fibroblast growth factor (FGF)-21 on metabolism and atherosclerosis make it a promising therapeutic agent for vascular calcification. We investigated the effects of FGF21 on vascular smooth muscle cell (VSMC) calcification by culturing rat VSMCs in a calcifying medium for 9days. FGF21 markedly attenuated mineral deposition and apoptosis at the indicated time points. In the presence of FGF21, the expression levels of osteoblastic protein including bone morphogenic protein-2, alkaline phosphatase(ALP), runt-related transcription factor(RUNX)-2 and nuclear factor-kappa B ligand (RANKL) were down-regulated, whereas the expression of osteoprotegerin (OPG) increased. Knockdown of OPG significantly impaired inhibition of FGF21 on apoptosis and the expression of pro-apoptotic genes including caspase-3 and Bax and osteoblastic -promoting markers including ALP, RUNX-2 and RANKL. Furthermore, FGF21 facilitated the phosphoryl of AKT but suppressed P38, while OPG knockdown attenuated the effects. LY29400 (inhibitor of PI3K) abrogated the activation of PI3K/AKT and SB203580 (inhibitor of P38) abolished the inhibition of FGF21 on P38, while alteration was observed in the expression of RUNX-2. FGF21 inhibited VSMCs calcification via OPG/RANKL system, and through P38 andPI3K/AKT pathways.
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