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Zapolski T, Kornecki W, Jaroszyński A. The Influence of Balneotherapy Using Salty Sulfide-Hydrogen Sulfide Water on Selected Markers of the Cardiovascular System: A Prospective Study. J Clin Med 2024; 13:3526. [PMID: 38930055 PMCID: PMC11204439 DOI: 10.3390/jcm13123526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 06/10/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Background: The sulfide-hydrogen sulfide brine balneotherapy (HSBB), including a combination of dissolved hydrogen sulfide (H2S) gas, inorganic sulfur ions (S2-), and hydrosulfide ions (HS-), is one of the most important and most effective forms of spa treatment in patients with osteoarticular disorders (OADs). Some cardiovascular diseases (CVDs) are often considered to be contraindications to HSBB since the presence of thiol groups may lead to an increased quantity of reactive oxygen species (ROS), which damage the vascular endothelium, and endothelial dysfunction is considered to be the main cause of atherosclerosis. However, there are a number of literature reports suggesting this theory to be false. H2S is a member of the endogenous gaseous transmitter family and, since it is a relatively recent addition, it has the least well-known biological properties. H2S-NO interactions play an important role in oxidative stress in CVDs. The general objective of this study was to assess the cardiovascular safety of HSBB and analyze the effect of HSBB on selected cardiovascular risk markers. Methods: A total of 100 patients at the age of 76.3 (±7.5) years from the Włókniarz Sanatorium in Busko-Zdrój were initially included in the study. The following parameters were assessed: age, sex, height, body weight, body surface area (BSA), body mass index (BMI), systolic (SBP) and diastolic blood pressure (DBP), heart rate, the diagnosis of OAD that was the indication for balneotherapy, creatinine (CREAT), glomerular filtration rate (GFR), lipid panel, C-reactive protein (CRP), uric acid (UA), and fibrinogen (FIBR) and cardiovascular markers: (cardiac troponin T (cTnT), N-terminal pro-B-type natriuretic peptide (NT-proBNP). Results: A significant decrease in DBP and a trend towards SBP reduction were observed over the course of the study. A significant decrease was observed in CRP levels decreasing from 2.7 (±3.6) mg/L to 2.06 (±1.91) mg/L, whereas FIBR rose significantly from 2.95 (±0.59) g/L to 3.23 (±1.23) g/L. LDL-C levels decreased slightly, statistically significant, from 129.36 (±40.67) mg/dL to 123.74 (±36.14) mg/dL. HSBB did not affect the levels of evaluated cardiovascular biomarkers, namely NT-proBNP (137.41 (±176.52) pg/mL vs. 142.89 (±182.82) pg/mL; p = 0.477) and cTnT (9.64 (±4.13) vs. 9.65 (±3.91) ng/L; p = 0.948). A multiple regression analysis of pre-balneotherapy and post-balneotherapy values showed cTnT levels to be independently correlated only with CREAT levels and GFR values. None of the assessed parameters independently correlated with the NT-proBNP level. Conclusions: HSBB resulted in a statistically significant improvement in a subclinical pro-inflammatory state. HSBB has a beneficial effect in modifying key cardiovascular risk factors by reducing LDL-C levels and DBP values. HSBB has a neutral effect on cardiovascular ischemia/injury. Despite slightly elevated baseline levels of the biochemical marker of HF (NT-proBNP), HSBB causes no further increase in this marker. The use of HSBB in patients with OAD has either a neutral effect or a potentially beneficial effect on the cardiovascular system, which may constitute grounds for further studies to verify the current cardiovascular contraindications for this form of therapy.
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Affiliation(s)
- Tomasz Zapolski
- Department of Cardiology, Medical University of Lublin, 20-093 Lublin, Poland
| | | | - Andrzej Jaroszyński
- Department of Internal Medicine and Family Medicine, Collegium Medicum, Jan Kochanowski University in Kielce, 25-369 Kielce, Poland;
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QIN X, WANG C, XUE J, ZHANG J, LU X, DING S, GE L, WANG M. Efficacy of electroacupuncture on myocardial protection and postoperative rehabilitation in patients undergoing cardiac surgery with cardiopulmonary bypass: a systematic review and Meta-analysis. J TRADIT CHIN MED 2024; 44:1-15. [PMID: 38213234 PMCID: PMC10774734 DOI: 10.19852/j.cnki.jtcm.20230904.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 02/18/2023] [Indexed: 01/13/2024]
Abstract
OBJECTIVE To evaluate the efficacy of electroacupuncture (EA) intervention on myocardial protection and postoperative rehabilitation in patients undergoing cardiac surgery with cardiopulmonary bypass (CPB). METHODS Eight databases, including PubMed, Embase, the Cochrane Library, Web of Science, Chinese BioMedical Literature Database, China National Knowledge Infrastructure Database, Wanfang Data, China Science and Technology Journal Database, and two clinical trial registries, were searched. All randomized controlled trials (RCTs) related to EA intervention in cardiac surgery with CPB were collected. Based on the inclusion and exclusion criteria, two researchers independently screened articles and extracted data. After the quality evaluation, RevMan 5.3 software was used for analysis. RESULTS Fourteen RCTs involving 836 patients were included. Compared with the control treatment, EA significantly increased the incidence of cardiac automatic rebeat after aortic unclamping [relative risk (RR) = 1.15, 95% confidence interval (CI) (1.01, 1.31), P < 0.05; moderate]. Twenty-four hours after aortic unclamping, EA significantly increased the superoxide dismutase [standardized mean difference (SMD) = 0.96, 95% CI(0.32, 1.61), P < 0.05; low], and interleukin (IL)-2 [SMD = 1.33, 95% CI(0.19, 2.47), P < 0.05; very low] expression levels and decreased the malondialdehyde [SMD =-1.62, 95% CI(-2.15, -1.09), P < 0.05; moderate], tumour necrosis factor-α [SMD = -1.28, 95% CI(-2.37, -0.19), P < 0.05; moderate], and cardiac troponin I [SMD = -1.09, 95% CI(-1.85, -0.32), P < 0.05; low] expression levels as well as the inotrope scores [SMD = -0.77, 95% CI(-1.22, -0.31), P < 0.05; high]. There was no difference in IL-6 and IL-10 expression levels. The amount of intraoperative sedative [SMD = -0.31, 95% CI(-0.54, -0.09), P < 0.05; moderate] and opioid analgesic [SMD = -0.96, 95% CI(-1.53, -0.38), P < 0.05; low] medication was significantly lower in the EA group than in the control group. Moreover, the postoperative tracheal intubation time [SMD = -0.92, 95% CI(-1.40, -0.45), P < 0.05; low] and intensive care unit stay [SMD = -1.71, 95% CI(-3.06, -0.36), P < 0.05; low] were significantly shorter in the EA group than in the control group. There were no differences in the time to get out of bed for the first time, total days of antibiotic use after surgery, or postoperative hospital stay. No adverse reactions related to EA were reported in any of the included studies. CONCLUSIONS In cardiac surgery with CPB, EA may be a safe and effective strategy to reduce myocardial ischaemia-reperfusion injury and speed up the recovery of patients after surgery. These findings must be interpreted with caution, as most of the evidence was of low or moderate quality. More RCTs with larger sample sizes and higher quality are needed to provide more convincing evidence.
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Affiliation(s)
- Xiaoyu QIN
- 1 the First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China
| | - Chunai WANG
- 2 Department of Anesthesiology, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou 730050, China
| | - Jianjun XUE
- 2 Department of Anesthesiology, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou 730050, China
| | - Jie ZHANG
- 3 the First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China; Department of Anesthesiology, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou 730050, China
| | - Xiaoting LU
- 1 the First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China
| | - Shengshuang DING
- 1 the First Clinical Medical College, Gansu University of Chinese Medicine, Lanzhou 730030, China
| | - Long GE
- 4 Evidence-based Medicine Center, Lanzhou University, Lanzhou 730030, China
| | - Minzhen WANG
- 5 Institute of Epidemiology and Statistics, School of Public Health, Lanzhou University, Lanzhou 730030, China
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Gonzalez AL, Dungan MM, Smart CD, Madhur MS, Doran AC. Inflammation Resolution in the Cardiovascular System: Arterial Hypertension, Atherosclerosis, and Ischemic Heart Disease. Antioxid Redox Signal 2024; 40:292-316. [PMID: 37125445 PMCID: PMC11071112 DOI: 10.1089/ars.2023.0284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 04/12/2023] [Indexed: 05/02/2023]
Abstract
Significance: Chronic inflammation has emerged as a major underlying cause of many prevalent conditions in the Western world, including cardiovascular diseases. Although targeting inflammation has emerged as a promising avenue by which to treat cardiovascular disease, it is also associated with increased risk of infection. Recent Advances: Though previously assumed to be passive, resolution has now been identified as an active process, mediated by unique immunoresolving mediators and mechanisms designed to terminate acute inflammation and promote tissue repair. Recent work has determined that failures of resolution contribute to chronic inflammation and the progression of human disease. Specifically, failure to produce pro-resolving mediators and the impaired clearance of dead cells from inflamed tissue have been identified as major mechanisms by which resolution fails in disease. Critical Issues: Drawing from a rapidly expanding body of experimental and clinical studies, we review here what is known about the role of inflammation resolution in arterial hypertension, atherosclerosis, myocardial infarction, and ischemic heart disease. For each, we discuss the involvement of specialized pro-resolving mediators and pro-reparative cell types, including T regulatory cells, myeloid-derived suppressor cells, and macrophages. Future Directions: Pro-resolving therapies offer the promise of limiting chronic inflammation without impairing host defense. Therefore, it is imperative to better understand the mechanisms underlying resolution to identify therapeutic targets. Antioxid. Redox Signal. 40, 292-316.
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Affiliation(s)
- Azuah L. Gonzalez
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Matthew M. Dungan
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - C. Duncan Smart
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Meena S. Madhur
- Division of Clinical Pharmacology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Amanda C. Doran
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Maassen H, Venema LH, Weiss MG, Huijink TM, Hofker HS, Keller AK, Mollnes TE, Eijken M, Pischke SE, Jespersen B, van Goor H, Leuvenink HGD. H2S-Enriched Flush out Does Not Increase Donor Organ Quality in a Porcine Kidney Perfusion Model. Antioxidants (Basel) 2023; 12:antiox12030749. [PMID: 36978997 PMCID: PMC10044751 DOI: 10.3390/antiox12030749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/29/2023] Open
Abstract
Kidney extraction time has a detrimental effect on post-transplantation outcome. This study aims to improve the flush-out and potentially decrease ischemic injury by the addition of hydrogen sulphide (H2S) to the flush medium. Porcine kidneys (n = 22) were extracted during organ recovery surgery. Pigs underwent brain death induction or a Sham operation, resulting in four groups: donation after brain death (DBD) control, DBD H2S, non-DBD control, and non-DBD H2S. Directly after the abdominal flush, kidneys were extracted and flushed with or without H2S and stored for 13 h via static cold storage (SCS) +/− H2S before reperfusion on normothermic machine perfusion. Pro-inflammatory cytokines IL-1b and IL-8 were significantly lower in H2S treated DBD kidneys during NMP (p = 0.03). The non-DBD kidneys show superiority in renal function (creatinine clearance and FENa) compared to the DBD control group (p = 0.03 and p = 0.004). No differences were seen in perfusion parameters, injury markers and histological appearance. We found an overall trend of better renal function in the non-DBD kidneys compared to the DBD kidneys. The addition of H2S during the flush out and SCS resulted in a reduction in pro-inflammatory cytokines without affecting renal function or injury markers.
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Hydropersulfides (RSSH) Outperform Post-Conditioning and Other Reactive Sulfur Species in Limiting Ischemia-Reperfusion Injury in the Isolated Mouse Heart. Antioxidants (Basel) 2022; 11:antiox11051010. [PMID: 35624878 PMCID: PMC9137952 DOI: 10.3390/antiox11051010] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/13/2022] [Accepted: 05/18/2022] [Indexed: 01/21/2023] Open
Abstract
Hydrogen sulfide (H2S) exhibits protective effects in cardiovascular disease such as myocardial ischemia/reperfusion (I/R) injury, cardiac hypertrophy, and atherosclerosis. Despite these findings, its mechanism of action remains elusive. Recent studies suggest that H2S can modulate protein activity through redox-based post-translational modifications of protein cysteine residues forming hydropersulfides (RSSH). Furthermore, emerging evidence indicates that reactive sulfur species, including RSSH and polysulfides, exhibit cardioprotective action. However, it is not clear yet whether there are any pharmacological differences in the use of H2S vs. RSSH and/or polysulfides. This study aims to examine the differing cardioprotective effects of distinct reactive sulfur species (RSS) such as H2S, RSSH, and dialkyl trisulfides (RSSSR) compared with canonical ischemic post-conditioning in the context of a Langendorff ex-vivo myocardial I/R injury model. For the first time, a side-by-side study has revealed that exogenous RSSH donation is a superior approach to maintain post-ischemic function and limit infarct size when compared with other RSS and mechanical post-conditioning. Our results also suggest that RSSH preserves mitochondrial respiration in H9c2 cardiomyocytes exposed to hypoxia-reoxygenation via inhibition of oxidative phosphorylation while preserving cell viability.
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Hu HJ, Wang XH, Liu Y, Zhang TQ, Chen ZR, Zhang C, Tang ZH, Qu SL, Tang HF, Jiang ZS. Hydrogen Sulfide Ameliorates Angiotensin II-Induced Atrial Fibrosis Progression to Atrial Fibrillation Through Inhibition of the Warburg Effect and Endoplasmic Reticulum Stress. Front Pharmacol 2021; 12:690371. [PMID: 34950023 PMCID: PMC8689064 DOI: 10.3389/fphar.2021.690371] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 11/24/2021] [Indexed: 12/16/2022] Open
Abstract
Atrial fibrosis is the basis for the occurrence and development of atrial fibrillation (AF) and is closely related to the Warburg effect, endoplasmic reticulum stress (ERS) and mitochondrion dysfunctions-induced cardiomyocyte apoptosis. Hydrogen sulfide (H2S) is a gaseous signalling molecule with cardioprotective, anti-myocardial fibrosis and improved energy metabolism effects. Nevertheless, the specific mechanism by which H2S improves the progression of atrial fibrosis to AF remains unclear. A case-control study of patients with and without AF was designed to assess changes in H2S, the Warburg effect, and ERS in AF. The results showed that AF can significantly reduce cystathionine-γ-lyase (CSE) and 3-mercaptopyruvate thiotransferase (3-MST) expression and the H2S level, induce cystathionine-β-synthase (CBS) expression; increase the Warburg effect, ERS and atrial fibrosis; and promote left atrial dysfunction. In addition, AngII-treated SD rats had an increased Warburg effect and ERS levels and enhanced atrial fibrosis progression to AF compared to wild-type SD rats, and these conditions were reversed by sodium hydrosulfide (NaHS), dichloroacetic acid (DCA) or 4-phenylbutyric acid (4-PBA) supplementation. Finally, low CSE levels in AngII-induced HL-1 cells were concentration- and time-dependent and associated with mitochondrial dysfunction, apoptosis, the Warburg effect and ERS, and these effects were reversed by NaHS, DCA or 4-PBA supplementation. Our research indicates that H2S can regulate the AngII-induced Warburg effect and ERS and might be a potential therapeutic drug to inhibit atrial fibrosis progression to AF.
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Affiliation(s)
- Heng-Jing Hu
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China.,Postdoctoral Research Station of Basic Medicine, University of South China, Hengyang, China
| | - Xiu-Heng Wang
- Department of Nuclear Medicine Lab, First Affiliated Hospital of University of South China, Hengyang, China
| | - Yao Liu
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China
| | - Tian-Qing Zhang
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China
| | - Zheng-Rong Chen
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China
| | - Chi Zhang
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Zhi-Han Tang
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Shun-Lin Qu
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Hui-Fang Tang
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China
| | - Zhi-Sheng Jiang
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China.,Postdoctoral Research Station of Basic Medicine, University of South China, Hengyang, China.,Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
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Scammahorn JJ, Nguyen ITN, Bos EM, Van Goor H, Joles JA. Fighting Oxidative Stress with Sulfur: Hydrogen Sulfide in the Renal and Cardiovascular Systems. Antioxidants (Basel) 2021; 10:373. [PMID: 33801446 PMCID: PMC7998720 DOI: 10.3390/antiox10030373] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 12/16/2022] Open
Abstract
Hydrogen sulfide (H2S) is an essential gaseous signaling molecule. Research on its role in physiological and pathophysiological processes has greatly expanded. Endogenous enzymatic production through the transsulfuration and cysteine catabolism pathways can occur in the kidneys and blood vessels. Furthermore, non-enzymatic pathways are present throughout the body. In the renal and cardiovascular system, H2S plays an important role in maintaining the redox status at safe levels by promoting scavenging of reactive oxygen species (ROS). H2S also modifies cysteine residues on key signaling molecules such as keap1/Nrf2, NFκB, and HIF-1α, thereby promoting anti-oxidant mechanisms. Depletion of H2S is implicated in many age-related and cardiorenal diseases, all having oxidative stress as a major contributor. Current research suggests potential for H2S-based therapies, however, therapeutic interventions have been limited to studies in animal models. Beyond H2S use as direct treatment, it could improve procedures such as transplantation, stem cell therapy, and the safety and efficacy of drugs including NSAIDs and ACE inhibitors. All in all, H2S is a prime subject for further research with potential for clinical use.
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Affiliation(s)
- Joshua J. Scammahorn
- Department of Nephrology & Hypertension, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands; (J.J.S.); (I.T.N.N.); (J.A.J.)
| | - Isabel T. N. Nguyen
- Department of Nephrology & Hypertension, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands; (J.J.S.); (I.T.N.N.); (J.A.J.)
| | - Eelke M. Bos
- Department of Neurosurgery, Erasmus Medical Center Rotterdam, 3015 CN Rotterdam, The Netherlands;
| | - Harry Van Goor
- Department of Pathology and Medical Biology, University Medical Center Groningen and University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Jaap A. Joles
- Department of Nephrology & Hypertension, University Medical Center Utrecht, 3508 GA Utrecht, The Netherlands; (J.J.S.); (I.T.N.N.); (J.A.J.)
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Zhang P, Yu Y, Wang P, Shen H, Ling X, Xue X, Yang Q, Zhang Y, Xiao J, Wang Z. Role of Hydrogen Sulfide in Myocardial Ischemia-Reperfusion Injury. J Cardiovasc Pharmacol 2021; 77:130-141. [PMID: 33165141 DOI: 10.1097/fjc.0000000000000943] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 10/13/2020] [Indexed: 12/28/2022]
Abstract
ABSTRACT Hydrogen sulfide (H2S), generally known as a new gas signal molecule after nitric oxide and carbon monoxide, has been found as an important endogenous gasotransmitter in the last few decades, and it plays a significant role in the cardiovascular system both pathologically and physiologically. In recent years, there is growing evidence that H2S provides myocardial protection against myocardial ischemia-reperfusion injury (MIRI), which resulted in an ongoing focus on the possible mechanisms of action accounting for the H2S cardioprotective effect. At present, lots of mechanisms of action have been verified through in vitro and in vivo models of I/R injury, such as S-sulfhydrated modification, antiapoptosis, effects on microRNA, bidirectional effect on autophagy, antioxidant stress, or interaction with NO and CO. With advances in understanding of the molecular pathogenesis of MIRI and pharmacology studies, the design, the development, and the pharmacological characterization of H2S donor drugs have made great important progress. This review summarizes the latest research progress on the role of H2S in MIRI, systematically explains the molecular mechanism of H2S affecting MIRI, and provides a new idea for the formulation of a myocardial protection strategy in the future.
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Affiliation(s)
- Peng Zhang
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China; and
| | - Yue Yu
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China; and
| | - Pei Wang
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China; and
| | - Hua Shen
- Department of Cardiovascular Surgery, Chinese PLA General Hospital, Beijing, China
| | - Xinyu Ling
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China; and
| | - Xiaofei Xue
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China; and
| | - Qian Yang
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China; and
| | - Yufeng Zhang
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China; and
| | - Jian Xiao
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China; and
| | - Zhinong Wang
- Department of Cardiothoracic Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China; and
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Wang WL, Ge TY, Chen X, Mao Y, Zhu YZ. Advances in the Protective Mechanism of NO, H 2S, and H 2 in Myocardial Ischemic Injury. Front Cardiovasc Med 2020; 7:588206. [PMID: 33195476 PMCID: PMC7661694 DOI: 10.3389/fcvm.2020.588206] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 09/28/2020] [Indexed: 12/30/2022] Open
Abstract
Myocardial ischemic injury is among the top 10 leading causes of death from cardiovascular diseases worldwide. Myocardial ischemia is caused mainly by coronary artery occlusion or obstruction. It usually occurs when the heart is insufficiently perfused, oxygen supply to the myocardium is reduced, and energy metabolism in the myocardium is abnormal. Pathologically, myocardial ischemic injury generates a large number of inflammatory cells, thus inducing a state of oxidative stress. This sharp reduction in the number of normal cells as a result of apoptosis leads to organ and tissue damage, which can be life-threatening. Therefore, effective methods for the treatment of myocardial ischemic injury and clarification of the underlying mechanisms are urgently required. Gaseous signaling molecules, such as NO, H2S, H2, and combined gas donors, have gradually become a focus of research. Gaseous signaling molecules have shown anti-apoptotic, anti-oxidative and anti-inflammatory effects as potential therapeutic agents for myocardial ischemic injury in a large number of studies. In this review, we summarize and discuss the mechanism underlying the protective effect of gaseous signaling molecules on myocardial ischemic injury.
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Affiliation(s)
| | | | - Xu Chen
- Guilin Medical College, Guilin, China
| | - Yicheng Mao
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Yi-Zhun Zhu
- Guilin Medical College, Guilin, China.,Shanghai Key Laboratory of Bioactive Small Molecules, Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China.,State Key Laboratory of Quality Research in Chinese Medicine and School of Pharmacy, Macau University of Science and Technology, Macau, China
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Safety and Tolerability of Sodium Thiosulfate in Patients with an Acute Coronary Syndrome Undergoing Coronary Angiography: A Dose-Escalation Safety Pilot Study (SAFE-ACS). J Interv Cardiol 2020; 2020:6014915. [PMID: 33041696 PMCID: PMC7532357 DOI: 10.1155/2020/6014915] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/26/2020] [Accepted: 09/07/2020] [Indexed: 12/14/2022] Open
Abstract
Background In animal studies, hydrogen sulfide (H2S) has been shown to protect the heart from ischemia-reperfusion injury. This study evaluates the safety and tolerability of the H2S donor sodium thiosulfate (STS) in patients with acute coronary syndrome (ACS). Methods Eighteen patients, undergoing coronary angiography for ACS, received STS intravenously immediately after arrival at the catheterization laboratory according to a “3 + 3 dose-escalation design” with fixed dosing endpoint (0, 2.5, 5, 10, 12.5, and 15 grams). This first dose STS was combined with verapamil and nitroglycerin required for transradial procedures. A second dose STS was administered 6 hours later. Primary endpoint was dose-limiting toxicity, defined as significant hemodynamic instability or death up to 24 hours or before discharge from the coronary care unit. Secondary outcomes included the occurrence of anaphylaxis, nausea, vomiting, and systolic blood pressure (SBP) course. Results Sixteen patients received two dosages of STS and two patients one dosage. None of the patients reached the primary endpoint, nor experienced a serious adverse event. We observed a clinically well-tolerated decline in SBP 1 hour after administration of the first STS dose and concomitant verapamil/nitroglycerin. SBP for all patients together reduced 16.8 (8.1–25.5) mmHg (P = 0.0008). No significant decline in SBP occurred after the second dose. Mild nausea was observed in one patient. Conclusion This is the first report on sodium thiosulfate administration in patients with acute coronary syndromes. Our data suggest that sodium thiosulfate was well tolerated in this setting. The potential benefit of this intervention has to be examined in larger studies.
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Hu X, Liu B, Wu P, Lang Y, Li T. LncRNA Oprm1 overexpression attenuates myocardial ischemia/reperfusion injury by increasing endogenous hydrogen sulfide via Oprm1/miR-30b-5p/CSE axis. Life Sci 2020; 254:117699. [PMID: 32437793 DOI: 10.1016/j.lfs.2020.117699] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/13/2020] [Accepted: 04/17/2020] [Indexed: 12/21/2022]
Abstract
AIMS Ischemia/reperfusion (I/R) injury largely limits the efficacy of revascularization in acute myocardial infarction. Long noncoding RNA (lncRNA) Oprm1 is protective in cerebral I/R injury. This study aimed to investigate the effect of lncRNA Oprm1 on myocardial I/R injury and its mechanism. MAIN METHODS We ligated and then released the left anterior descending coronary artery of adult male rats to build the I/R model in vivo. At the same time, an H9c2 cardiomyocytes hypoxia-reoxygenation (H/R) model was also used. Myocardial infarction area, cardiac function, histology, TUNEL staining, cell viability, and vital protein expression was conducted and compared. KEY FINDINGS LncRNA Oprm1 was significantly down-regulated in the I/R injury model. When administered with the AAV9-Oprm1 vector, the myocardial injury and cardiac function were mitigated and preserved, with apoptosis reduced. The cystathionine-γ-lyase (CSE) expression and hydrogen sulfide (H2S) expression were increased. The dual-luciferase reporter gene revealed the targeted relationship between lncRNA Oprm1 and miR-30b-5p. In H9c2 cardiomyocytes models, the miR-30b-5p blocked the protective effect of lncRNA Oprm1 on H/R injury, when Bcl-2, Bcl-xl was down-regulated, and HIF-1α, Bnip-3, Caspase-3, and Caspase-9 up-regulated. SIGNIFICANCE LncRNA Oprm1can competitively combines with miR-30b-5p, which down-regulates the expression of CSE. When administered with lncRNA Oprm1, increased endogenous H2S can reduce apoptosis and protect the myocardium from I/R injury via activating PI3K/Akt pathway and inhibiting HIF1-α activity.
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Affiliation(s)
- Xiaomin Hu
- The Heart Center of Tianjin Third Central Hospital, Tianjin 300170, China
| | - Bojiang Liu
- The Heart Center of Tianjin Third Central Hospital, Tianjin 300170, China
| | - Peng Wu
- The Heart Center of Tianjin Third Central Hospital, Tianjin 300170, China
| | - Yuheng Lang
- The Heart Center of Tianjin Third Central Hospital, Tianjin 300170, China
| | - Tong Li
- The Heart Center of Tianjin Third Central Hospital, Tianjin 300170, China.
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12
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Maassen H, Hendriks KDW, Venema LH, Henning RH, Hofker SH, van Goor H, Leuvenink HGD, Coester AM. Hydrogen sulphide-induced hypometabolism in human-sized porcine kidneys. PLoS One 2019; 14:e0225152. [PMID: 31743376 PMCID: PMC6863563 DOI: 10.1371/journal.pone.0225152] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 10/29/2019] [Indexed: 02/06/2023] Open
Abstract
Background Since the start of organ transplantation, hypothermia-forced hypometabolism has been the cornerstone in organ preservation. Cold preservation showed to protect against ischemia, although post-transplant injury still occurs and further improvement in preservation techniques is needed. We hypothesize that hydrogen sulphide can be used as such a new preservation method, by inducing a reversible hypometabolic state in human sized kidneys during normothermic machine perfusion. Methods Porcine kidneys were connected to an ex-vivo isolated, oxygen supplemented, normothermic blood perfusion set-up. Experimental kidneys (n = 5) received a 85mg NaHS infusion of 100 ppm and were compared to controls (n = 5). As a reflection of the cellular metabolism, oxygen consumption, mitochondrial activity and tissue ATP levels were measured. Kidney function was assessed by creatinine clearance and fractional excretion of sodium. To rule out potential structural and functional deterioration, kidneys were studied for biochemical markers and histology. Results Hydrogen sulphide strongly decreased oxygen consumption by 61%, which was associated with a marked decrease in mitochondrial activity/function, without directly affecting ATP levels. Renal biological markers, renal function and histology did not change after hydrogen sulphide treatment. Conclusion In conclusion, we showed that hydrogen sulphide can induce a controllable hypometabolic state in a human sized organ, without damaging the organ itself and could thereby be a promising therapeutic alternative for cold preservation under normothermic conditions in renal transplantation.
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Affiliation(s)
- Hanno Maassen
- Department of Surgery, UMCG, University of Groningen, Groningen, the Netherlands
- Department of Pathology and Medical Biology, UMCG, University of Groningen, Groningen, the Netherlands
- * E-mail:
| | - Koen D. W. Hendriks
- Department of Surgery, UMCG, University of Groningen, Groningen, the Netherlands
- Department of Clinical Pharmacy and Pharmacology, UMCG, University of Groningen, Groningen, the Netherlands
| | - Leonie H. Venema
- Department of Surgery, UMCG, University of Groningen, Groningen, the Netherlands
| | - Rob H. Henning
- Department of Clinical Pharmacy and Pharmacology, UMCG, University of Groningen, Groningen, the Netherlands
| | - Sijbrand H. Hofker
- Department of Surgery, UMCG, University of Groningen, Groningen, the Netherlands
| | - Harry van Goor
- Department of Pathology and Medical Biology, UMCG, University of Groningen, Groningen, the Netherlands
| | | | - Annemieke M. Coester
- Department of Surgery, UMCG, University of Groningen, Groningen, the Netherlands
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13
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Morales-Loredo H, Barrera A, Garcia JM, Pace CE, Naik JS, Gonzalez Bosc LV, Kanagy NL. Hydrogen sulfide regulation of renal and mesenteric blood flow. Am J Physiol Heart Circ Physiol 2019; 317:H1157-H1165. [PMID: 31625777 DOI: 10.1152/ajpheart.00303.2019] [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: 02/07/2023]
Abstract
Hydrogen sulfide (H2S) dilates isolated arteries, and knockout of the H2S-synthesizing enzyme cystathionine γ-lyase (CSE) increases blood pressure. However, the contributions of endogenously produced H2S to blood flow regulation in specific vascular beds are unknown. Published studies in isolated arteries show that CSE production of H2S influences vascular tone more in small mesenteric arteries than in renal arteries or the aorta. Therefore, the goal of this study was to evaluate H2S regulation of blood pressure, vascular resistance, and regional blood flows using chronically instrumented rats. We hypothesized that during whole animal CSE inhibition, vascular resistance would increase more in the mesenteric than the renal circulation. Under anesthesia, CSE inhibition [β-cyanoalanine (BCA), 30 mg/kg bolus + 5 mg·kg-1·min-1 for 20 min iv) rapidly increased mean arterial pressure (MAP) more than saline administration (%Δ: saline -1.4 ± 0.75 vs. BCA 7.1 ± 1.69, P < 0.05) but did not change resistance (MAP/flow) in either the mesenteric or renal circulation. In conscious rats, BCA infusion similarly increased MAP (%Δ: saline -0.8 ± 1.18 vs. BCA 8.2 ± 2.6, P < 0.05, n = 7) and significantly increased mesenteric resistance (saline 0.9 ± 3.1 vs. BCA 15.6 ± 6.5, P < 0.05, n = 12). The H2S donor Na2S (50 mg/kg) decreased blood pressure and mesenteric resistance ,but the fall in resistance was not significant. Inhibiting CSE for multiple days with dl-proparglycine (PAG, 50 mg·kg-1·min-1 iv bolus for 5 days) significantly increased vascular resistance in both mesenteric (ratio of day 1: saline 0.86 ± 0.033 vs. PAG 1.79 ± 0.38) and renal circulations (ratio of day 1: saline 1.26 ± 0.22 vs. 1.98 ± 0.14 PAG). These results support our hypothesis that CSE-derived H2S is an important regulator of blood pressure and vascular resistance in both mesenteric and renal circulations. Furthermore, inhalation anesthesia diminishes the effect of CSE inhibition on vascular tone.NEW & NOTEWORTHY These results suggest that CSE-derived H2S has a prominent role in regulating blood pressure and blood flow under physiological conditions, which may have been underestimated in prior studies in anesthetized subjects. Therefore, enhancing substrate availability or enzyme activity or dosing with H2S donors could be a novel therapeutic approach to treat cardiovascular diseases.
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Affiliation(s)
- Humberto Morales-Loredo
- Vascular Physiology Group, Department of Cell Biology and Physiology, School of Medicine, University of New Mexico, Albuquerque, New Mexico
| | - Adelaeda Barrera
- Vascular Physiology Group, Department of Cell Biology and Physiology, School of Medicine, University of New Mexico, Albuquerque, New Mexico
| | - Joshua M Garcia
- Vascular Physiology Group, Department of Cell Biology and Physiology, School of Medicine, University of New Mexico, Albuquerque, New Mexico
| | - Carolyn E Pace
- Vascular Physiology Group, Department of Cell Biology and Physiology, School of Medicine, University of New Mexico, Albuquerque, New Mexico
| | - Jay S Naik
- Vascular Physiology Group, Department of Cell Biology and Physiology, School of Medicine, University of New Mexico, Albuquerque, New Mexico
| | - Laura V Gonzalez Bosc
- Vascular Physiology Group, Department of Cell Biology and Physiology, School of Medicine, University of New Mexico, Albuquerque, New Mexico
| | - Nancy L Kanagy
- Vascular Physiology Group, Department of Cell Biology and Physiology, School of Medicine, University of New Mexico, Albuquerque, New Mexico
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14
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Bai C, Zhao C. Sodium Hydrosulfide Post-conditioning Protects Hippocampal CA1 Neurons from Neuronal Cell Injury in the Rat Model of Transient Global Cerebral Ischemia Through Activation of Extracellular-regulated Kinases Signaling. Curr Neurovasc Res 2019; 16:156-165. [PMID: 31237214 DOI: 10.2174/1567202616666190618114250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 03/27/2019] [Accepted: 03/28/2019] [Indexed: 11/22/2022]
Abstract
INTRODUCTION The effect of hydrogen sulfide (H2S) on global cerebral ischemia remains partially understood. This study aimed to investigate the neuroprotective effect of sodium hydrosulfide (NaHS, a donor of H2S) post-conditioning and its underlying mechanism in a transient global cerebral ischemia (tGCI) model. MATERIALS & METHODS The tGCI rat model was established by the four-vessel occlusion method. Wistar rats were randomly assigned into 6 groups: sham, tGCI, tGCI +NaHS, tGCI+vehicle, tGCI+U0126 and tGCI+U0126+NaHS groups. Neurons survival was assessed by Nissl staining and NeuN immunostaining. Levels of extracellular extracellular-regulated kinases (ERK)1/2 and p-ERK1/2 were determined by western blot and immunohistochemistry (IHC). Intraperitoneal injection of NaHS (24 µmol/kg) at 24 h post-tGCI attenuated tGCI-induced decrease of the survival and NeuN-positive neurons in the hippocampal CA1 subregion. RESULTS Compared to the sham group, tGCI significantly up-regulated p-ERK1/2 protein at 26 and 48 h post-tGCI. NaHS post-conditioning further enhanced the phosphorylation of ERK1/2 at 26, 48 and 168 h post-tGCI. Nevertheless, U0126 (an inhibitor of MEK1/2) pre-treatment reduced the p-ERK1/2 level in both the tGCI+ U0126 group and the tGCI+ U0126+ NaHS group. IHC staining revealed that p-ERK1/2-positive cell could be observed in several hippocampal subregions of the rats receiving NaHS post-conditioning. Immunofluorescence staining showed that some neurons were double-stained with p-ERK1/2 and NeuN. Furthermore, U0126 pre-treatment significantly attenuated the protective effect of NaHS post-conditioning on the neurons survival and NeuNpositive neurons in CA1 subregion. CONCLUSION These results suggested that NaHS post-conditioning can protect hippocampal CA1 neurons from tGCI-induced injury, at least partially, through activation of ERK1/2 signaling.
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Affiliation(s)
- ChengPing Bai
- Department of Neurology, Affiliated Hospital of Qinghai University, 810001, Xining, Qinghai, China
| | - ChenLiang Zhao
- The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu 322000, Zhejiang, China
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15
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van den Born JC, Frenay ARS, Koning AM, Bachtler M, Riphagen IJ, Minovíc I, Feelisch M, Dekker MM, Bulthuis MLC, Gansevoort RT, Hillebrands JL, Pasch A, Bakker SJL, van Goor H. Urinary Excretion of Sulfur Metabolites and Risk of Cardiovascular Events and All-Cause Mortality in the General Population. Antioxid Redox Signal 2019; 30:1999-2010. [PMID: 29905081 DOI: 10.1089/ars.2017.7040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Aims: Thiosulfate and sulfate are metabolites of hydrogen sulfide (H2S), a gaseous signaling molecule with cardiovascular (CV) protective properties. Urinary thiosulfate excretion and sulfate excretion are associated with favorable disease outcome in high-risk patient groups. We investigated the relationship between urinary excretion of sulfur metabolites, and risk of CV events and all-cause mortality in the general population. Results: Subjects (n = 6839) of the Prevention of Renal and Vascular End-stage Disease (PREVEND) study were followed prospectively. At baseline, 24-h urinary excretion of thiosulfate and sulfate was determined. Median urinary thiosulfate and sulfate excretion values were 1.27 (interquartile range [IQR] 0.89-2.37) μmol/24 h and 15.7 (IQR 12.0-20.3) mmol/24 h, respectively. Neither thiosulfate nor sulfate excretion showed an independent association with risk of CV events. Sulfate, but not thiosulfate, was inversely associated with risk of all-cause mortality, independent of potential confounders (hazard ratio 0.73 [95% confidence interval 0.63-0.84], p < 0.001). This association appeared most pronounced for normolipidemic subjects (pinteraction = 0.019). Innovation: The strong association between sulfate excretion and mortality in the general population emphasizes the (patho)physiological importance of sulfate or its precursor H2S. Conclusion: We hypothesize that urinary sulfate excretion, which is inversely associated with all-cause mortality in the general population, holds clinical relevance as a beneficial modulator in health and disease. Antioxid. Redox Signal. 30, 1999-2010.
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Affiliation(s)
- Joost C van den Born
- 1 Department of Pathology and Medical Biology, Division of Pathology, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands
| | - Anne-Roos S Frenay
- 1 Department of Pathology and Medical Biology, Division of Pathology, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands
| | - Anne M Koning
- 1 Department of Pathology and Medical Biology, Division of Pathology, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands.,2 Department of Surgery, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands
| | - Matthias Bachtler
- 3 Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Ineke J Riphagen
- 4 Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands.,5 Top Institute Food and Nutrition, Wageningen, The Netherlands
| | - Isidor Minovíc
- 4 Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands
| | - Martin Feelisch
- 6 Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom.,7 NIHR Biomedical Research Centre, University of Southampton, Southampton, United Kingdom.,8 University Hospital Southampton NHS Foundation Trust, Southampton, United Kingdom
| | - Marinda M Dekker
- 1 Department of Pathology and Medical Biology, Division of Pathology, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands
| | - Marian L C Bulthuis
- 1 Department of Pathology and Medical Biology, Division of Pathology, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands
| | - Ron T Gansevoort
- 4 Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands
| | - Jan-Luuk Hillebrands
- 1 Department of Pathology and Medical Biology, Division of Pathology, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands
| | - Andreas Pasch
- 3 Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Stephan J L Bakker
- 4 Division of Nephrology, Department of Internal Medicine, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands.,5 Top Institute Food and Nutrition, Wageningen, The Netherlands
| | - Harry van Goor
- 1 Department of Pathology and Medical Biology, Division of Pathology, University Medical Center Groningen (UMCG), University of Groningen (RUG), Groningen, The Netherlands
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16
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Gopalakrishnan P, Shrestha B, Kaskas AM, Green J, Alexander JS, Pattillo CB. Hydrogen sulfide: Therapeutic or injurious in ischemic stroke? PATHOPHYSIOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY FOR PATHOPHYSIOLOGY 2019; 26:1-10. [PMID: 30528175 DOI: 10.1016/j.pathophys.2018.10.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 07/10/2018] [Accepted: 10/22/2018] [Indexed: 01/09/2023]
Abstract
Hydrogen sulfide (H2S) has been identified as a vasodilatory, neuromodulatory, and anti-inflammatory gasotransmitter with antioxidant properties. Studies focused in cardiac tissue suggest H2S functions as a protective agent; however in the central nervous system (CNS) the effects of H2S during states of stress or injury, such as stroke, remain controversial. Currently, the application of H2S donors and modulators in stroke depends on the type of H2S donor and the timing of the therapy.
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Affiliation(s)
- Priya Gopalakrishnan
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71130-3932, USA
| | - B Shrestha
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71130-3932, USA
| | - A M Kaskas
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71130-3932, USA
| | - J Green
- Department of Cell Biology and Anatomy, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71130-3932, USA
| | - J S Alexander
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71130-3932, USA
| | - C B Pattillo
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center, 1501 Kings Highway, Shreveport, LA, 71130-3932, USA.
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17
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Woods JJ, Cao J, Lippert AR, Wilson JJ. Characterization and Biological Activity of a Hydrogen Sulfide-Releasing Red Light-Activated Ruthenium(II) Complex. J Am Chem Soc 2018; 140:12383-12387. [PMID: 30230336 DOI: 10.1021/jacs.8b08695] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Hydrogen sulfide (H2S) is a biological gasotransmitter that has been employed for the treatment of ischemia-reperfusion injury. Despite its therapeutic value, the implementation of this gaseous molecule for this purpose has required H2S-releasing prodrugs for effective intracellular delivery. The majority of these prodrugs, however, spontaneously release H2S via uncontrolled hydrolysis. Here, we describe a Ru(II)-based H2S-releasing agent that can be activated selectively by red light irradiation. This compound operates in living cells, increasing intracellular H2S concentration only upon irradiation with red light. Furthermore, the red light irradiation of this compound protects H9c2 cardiomyoblasts from an in vitro model of ischemia-reperfusion injury. These results validate the use of red light-activated H2S-releasing agents as valuable tools for studying the biology and therapeutic utility of this gasotransmitter.
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Affiliation(s)
- Joshua J Woods
- Robert F. Smith School for Chemical and Biomolecular Engineering , Cornell University , Ithaca , New York 14853 , United States.,Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Jian Cao
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
| | - Alexander R Lippert
- Department of Chemistry , Southern Methodist University , Dallas , Texas 75275 , United States
| | - Justin J Wilson
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
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18
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Maekawa M, Ohnishi T, Balan S, Hisano Y, Nozaki Y, Ohba H, Toyoshima M, Shimamoto C, Tabata C, Wada Y, Yoshikawa T. Thiosulfate promotes hair growth in mouse model. Biosci Biotechnol Biochem 2018; 83:114-122. [PMID: 30200826 DOI: 10.1080/09168451.2018.1518705] [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] [Indexed: 12/21/2022]
Abstract
The present study describes the hair growth-promoting effects of sodium thiosulfate (STS), a widely used compound, in mice. STS accelerated hair growth in the "telogen model", suggesting that it stimulates telogen hair follicles to reenter the anagen phase of hair growth. In the same model, STS potentiated hair growth in an additive manner with minoxidil (MXD), a drug used for the treatment of androgenic alopecia. Furthermore, in the "anagen model", STS promoted hair growth, probably by promoting hair follicle proliferation. Since STS elevated the skin surface temperature, its hair growth-promoting activity may be partly due to vasorelaxation, similar to MXD. In addition, STS is known to generate a gaseous mediator, H2S, which has vasorelaxation and anti-inflammatory/anti-oxidative stress activities. Therefore, STS and/or provisionally its metabolite, H2S, may aid the hair growth process. Collectively, these results suggest that salts of thiosulfate may represent a novel and beneficial remedy for hair loss.
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Affiliation(s)
- Motoko Maekawa
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan
| | - Tetsuo Ohnishi
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan
| | - Shabeesh Balan
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan
| | - Yasuko Hisano
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan
| | - Yayoi Nozaki
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan
| | - Hisako Ohba
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan
| | - Manabu Toyoshima
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan
| | - Chie Shimamoto
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan
| | - Chinatsu Tabata
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan.,b Department of Biological Sciences , Graduate School of Humanities and Sciences, Ochanomizu University , Tokyo , Japan
| | - Yuina Wada
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan.,b Department of Biological Sciences , Graduate School of Humanities and Sciences, Ochanomizu University , Tokyo , Japan
| | - Takeo Yoshikawa
- a Laboratory for Molecular Psychiatry , RIKEN Center for Brain Science , Saitama , Japan
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19
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Imbrogno S, Filice M, Cerra MC, Gattuso A. NO, CO and H 2 S: What about gasotransmitters in fish and amphibian heart? Acta Physiol (Oxf) 2018; 223:e13035. [PMID: 29338122 DOI: 10.1111/apha.13035] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 01/08/2018] [Accepted: 01/08/2018] [Indexed: 12/25/2022]
Abstract
The gasotransmitters nitric oxide (NO), carbon monoxide (CO), and hydrogen sulphide (H2 S), long considered only toxicant, are produced in vivo during the catabolism of common biological molecules and are crucial for a large variety of physiological processes. Mounting evidence is emerging that in poikilotherm vertebrates, as in mammals, they modulate the basal performance of the heart and the response to stress challenges. In this review, we will focus on teleost fish and amphibians to highlight the evolutionary importance in vertebrates of the cardiac control elicited by NO, CO and H2 S, and the conservation of the intracellular cascades they activate. Although many gaps are still present due to discontinuous information, we will use examples obtained by studies from our and other laboratories to illustrate the complexity of the mechanisms that, by involving gasotransmitters, allow beat-to-beat, short-, medium- and long-term cardiac homoeostasis. By presenting the latest data, we will also provide a framework in which the peculiar morpho-functional arrangement of the teleost and amphibian heart can be considered as a reference tool to decipher cardiac regulatory networks which are difficult to explore using more conventional vertebrates, such as mammals.
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Affiliation(s)
- S. Imbrogno
- Department of Biology, Ecology and Earth Sciences; University of Calabria; Arcavacata di Rende; Italy
| | - M. Filice
- Department of Biology, Ecology and Earth Sciences; University of Calabria; Arcavacata di Rende; Italy
| | - M. C. Cerra
- Department of Biology, Ecology and Earth Sciences; University of Calabria; Arcavacata di Rende; Italy
| | - A. Gattuso
- Department of Biology, Ecology and Earth Sciences; University of Calabria; Arcavacata di Rende; Italy
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20
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Karwi QG, Bice JS, Baxter GF. Pre- and postconditioning the heart with hydrogen sulfide (H 2S) against ischemia/reperfusion injury in vivo: a systematic review and meta-analysis. Basic Res Cardiol 2018; 113:6. [PMID: 29242986 PMCID: PMC5730622 DOI: 10.1007/s00395-017-0664-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 12/08/2017] [Indexed: 02/07/2023]
Abstract
Conditioning-like infarct limitation by enhanced level of hydrogen sulfide (H2S) has been demonstrated in many animal models of myocardial ischemia/reperfusion injury (MIRI) in vivo. We sought to evaluate the effect of H2S on myocardial infarction across in vivo pre-clinical studies of MIRI using a comprehensive systematic review followed by meta-analysis. Embase, Pubmed and Web of Science were searched for pre-clinical investigation of the effect of H2S on MIRI in vivo. Retained records (6031) were subjected to our pre-defined inclusion criteria then were objectively critiqued. Thirty-two reports were considered eligible to be included in this study and were grouped, based on the time of H2S application, into preconditioning and postconditioning groups. Data were pooled using random effect meta-analysis. We also investigated the possible impact of different experimental variables and the risk of bias on the observed effect size. Preconditioning with H2S (n = 23) caused a significant infarct limitation of - 20.25% (95% CI - 25.02, - 15.47). Similarly, postconditioning with H2S (n = 40) also limited infarct size by - 21.61% (95% CI - 24.17, - 19.05). This cardioprotection was also robust and consistent following sensitivity analyses where none of the pre-defined experimental variables had a significant effect on the observed infarct limitation. H2S shows a significant infarct limitation across in vivo pre-clinical studies of MIRI which include data from 825 animals. This infarct-sparing effect is robust and consistent when H2S is applied before ischemia or at reperfusion, independently on animal size or sulfide source. Validating this infarct limitation using large animals from standard medical therapy background and with co-morbidities should be the way forward.
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Affiliation(s)
- Qutuba G Karwi
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Redwood Building, King Edward VII Avenue, Cardiff, CF10 3NB, UK.
- Department of Pharmacology, College of Medicine, University of Diyala, Diyala, Iraq.
| | - Justin S Bice
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Redwood Building, King Edward VII Avenue, Cardiff, CF10 3NB, UK
| | - Gary F Baxter
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Redwood Building, King Edward VII Avenue, Cardiff, CF10 3NB, UK
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van der Pol A, Gil A, Silljé HHW, Tromp J, Ovchinnikova ES, Vreeswijk-Baudoin I, Hoes M, Domian IJ, van de Sluis B, van Deursen JM, Voors AA, van Veldhuisen DJ, van Gilst WH, Berezikov E, van der Harst P, de Boer RA, Bischoff R, van der Meer P. Accumulation of 5-oxoproline in myocardial dysfunction and the protective effects of OPLAH. Sci Transl Med 2017; 9:eaam8574. [PMID: 29118264 DOI: 10.1126/scitranslmed.aam8574] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 08/01/2017] [Accepted: 10/03/2017] [Indexed: 12/28/2022]
Abstract
In response to heart failure (HF), the heart reacts by repressing adult genes and expressing fetal genes, thereby returning to a more fetal-like gene profile. To identify genes involved in this process, we carried out transcriptional analysis on murine hearts at different stages of development and on hearts from adult mice with HF. Our screen identified Oplah, encoding for 5-oxoprolinase, a member of the γ-glutamyl cycle that functions by scavenging 5-oxoproline. OPLAH depletion occurred as a result of cardiac injury, leading to elevated 5-oxoproline and oxidative stress, whereas OPLAH overexpression improved cardiac function after ischemic injury. In HF patients, we observed elevated plasma 5-oxoproline, which was associated with a worse clinical outcome. Understanding and modulating fetal-like genes in the failing heart may lead to potential diagnostic, prognostic, and therapeutic options in HF.
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Affiliation(s)
- Atze van der Pol
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | - Andres Gil
- Department of Pharmacy, Analytical Biochemistry, University of Groningen, 9713 AV Groningen, Netherlands
| | - Herman H W Silljé
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | - Jasper Tromp
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
- National Heart Centre Singapore, 169609 Singapore, Singapore
| | - Ekaterina S Ovchinnikova
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
- European Research Institute for the Biology of Aging, Laboratory of Stem Cell Regulation and Mechanisms of Regeneration, University of Groningen, 9713 AV Groningen, Netherlands
| | - Inge Vreeswijk-Baudoin
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | - Martijn Hoes
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | - Ibrahim J Domian
- Cardiovascular Research Center, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
- Harvard Stem Cell Institute, Cambridge, MA 02138, USA
| | - Bart van de Sluis
- Molecular Genetics Section, Department of Pediatrics, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | | | - Adriaan A Voors
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | - Dirk J van Veldhuisen
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | - Wiek H van Gilst
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | - Eugene Berezikov
- European Research Institute for the Biology of Aging, Laboratory of Stem Cell Regulation and Mechanisms of Regeneration, University of Groningen, 9713 AV Groningen, Netherlands
| | - Pim van der Harst
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | - Rudolf A de Boer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands
| | - Rainer Bischoff
- Department of Pharmacy, Analytical Biochemistry, University of Groningen, 9713 AV Groningen, Netherlands
| | - Peter van der Meer
- Department of Cardiology, University Medical Center Groningen, University of Groningen, 9713 AV Groningen, Netherlands.
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Dugbartey GJ, Hardenberg MC, Kok WF, Boerema AS, Carey HV, Staples JF, Henning RH, Bouma HR. Renal Mitochondrial Response to Low Temperature in Non-Hibernating and Hibernating Species. Antioxid Redox Signal 2017; 27:599-617. [PMID: 28322600 DOI: 10.1089/ars.2016.6705] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
SIGNIFICANCE Therapeutic hypothermia is commonly applied to limit ischemic injury in organ transplantation, during cardiac and brain surgery and after cardiopulmonary resuscitation. In these procedures, the kidneys are particularly at risk for ischemia/reperfusion injury (IRI), likely due to their high rate of metabolism. Although hypothermia mitigates ischemic kidney injury, it is not a panacea. Residual mitochondrial failure is believed to be a key event triggering loss of cellular homeostasis, and potentially cell death. Subsequent rewarming generates large amounts of reactive oxygen species that aggravate organ injury. Recent Advances: Hibernators are able to withstand periods of profoundly reduced metabolism and body temperature ("torpor"), interspersed by brief periods of rewarming ("arousal") without signs of organ injury. Specific adaptations allow maintenance of mitochondrial homeostasis, limit oxidative stress, and protect against cell death. These adaptations consist of active suppression of mitochondrial function and upregulation of anti-oxidant enzymes and anti-apoptotic pathways. CRITICAL ISSUES Unraveling the precise molecular mechanisms that allow hibernators to cycle through torpor and arousal without precipitating organ injury may translate into novel pharmacological approaches to limit IRI in patients. FUTURE DIRECTIONS Although the precise signaling routes involved in natural hibernation are not yet fully understood, torpor-like hypothermic states with increased resistance to ischemia/reperfusion can be induced pharmacologically by 5'-adenosine monophosphate (5'-AMP), adenosine, and hydrogen sulfide (H2S) in non-hibernators. In this review, we compare the molecular effects of hypothermia in non-hibernators with natural and pharmacologically induced torpor, to delineate how safe and reversible metabolic suppression may provide resistance to renal IRI. Antioxid. Redox Signal. 27, 599-617.
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Affiliation(s)
- George J Dugbartey
- 1 Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen , Groningen, the Netherlands .,2 Division of Cardiology, Cincinnati Children's Hospital Medical Center , Cincinnati, Ohio
| | - Maarten C Hardenberg
- 1 Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen , Groningen, the Netherlands
| | - Wendelinde F Kok
- 1 Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen , Groningen, the Netherlands
| | - Ate S Boerema
- 3 Groningen Institute for Evolutionary Life Sciences, University of Groningen , Groningen, the Netherlands .,4 Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, University of Groningen , Groningen, the Netherlands
| | - Hannah V Carey
- 5 Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin , Madison, Wisconsin
| | - James F Staples
- 6 Department of Biology, University of Western Ontario , London, Canada
| | - Robert H Henning
- 1 Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen , Groningen, the Netherlands
| | - Hjalmar R Bouma
- 1 Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen , Groningen, the Netherlands .,7 Department of Internal Medicine, University Medical Center Groningen, University of Groningen , Groningen, the Netherlands
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Magierowski M, Magierowska K, Hubalewska-Mazgaj M, Sliwowski Z, Pajdo R, Ginter G, Kwiecien S, Brzozowski T. Exogenous and Endogenous Hydrogen Sulfide Protects Gastric Mucosa against the Formation and Time-Dependent Development of Ischemia/Reperfusion-Induced Acute Lesions Progressing into Deeper Ulcerations. Molecules 2017; 22:molecules22020295. [PMID: 28212299 PMCID: PMC6155792 DOI: 10.3390/molecules22020295] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/06/2017] [Accepted: 02/11/2017] [Indexed: 12/14/2022] Open
Abstract
Hydrogen sulfide (H2S) is an endogenous mediator, synthesized from l-cysteine by cystathionine γ-lyase (CSE), cystathionine β-synthase (CBS) or 3-mercaptopyruvate sulfurtransferase (3-MST). The mechanism(s) involved in H2S-gastroprotection against ischemia/reperfusion (I/R) lesions and their time-dependent progression into deeper gastric ulcerations have been little studied. We determined the effect of l-cysteine, H2S-releasing NaHS or slow H2S releasing compound GYY4137 on gastric blood flow (GBF) and gastric lesions induced by 30 min of I followed by 3, 6, 24 and 48 h of R. Role of endogenous prostaglandins (PGs), afferent sensory nerves releasing calcitonin gene-related peptide (CGRP), the gastric expression of hypoxia inducible factor (HIF)-1α and anti-oxidative enzymes were examined. Rats with or without capsaicin deactivation of sensory nerves were pretreated i.g. with vehicle, NaHS (18–180 μmol/kg) GYY4137 (90 μmol/kg) or l-cysteine (0.8–80 μmol/kg) alone or in combination with (1) indomethacin (14 μmol/kg i.p.), SC-560 (14 μmol/kg), celecoxib (26 μmol/kg); (2) capsazepine (13 μmol/kg i.p.); and (3) CGRP (2.5 nmol/kg i.p.). The area of I/R-induced gastric lesions and GBF were measured by planimetry and H2-gas clearance, respectively. Expression of mRNA for CSE, CBS, 3-MST, HIF-1α, glutathione peroxidase (GPx)-1, superoxide dismutase (SOD)-2 and sulfide production in gastric mucosa compromised by I/R were determined by real-time PCR and methylene blue method, respectively. NaHS and l-cysteine dose-dependently attenuated I/R-induced lesions while increasing the GBF, similarly to GYY4137 (90 μmol/kg). Capsaicin denervation and capsazepine but not COX-1 and COX-2 inhibitors reduced NaHS- and l-cysteine-induced protection and hyperemia. NaHS increased mRNA expression for SOD-2 and GPx-1 but not that for HIF-1α. NaHS which increased gastric mucosal sulfide release, prevented further progression of acute I/R injury into deeper gastric ulcers at 6, 24 and 48 h of R. We conclude that H2S-induced gastroprotection against I/R-injury is due to increase in gastric microcirculation, anti-oxidative properties and afferent sensory nerves activity but independent on endogenous prostaglandins.
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Affiliation(s)
- Marcin Magierowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Katarzyna Magierowska
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Magdalena Hubalewska-Mazgaj
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
- Department of Genetic Research and Nutrigenomics, Malopolska Centre of Biotechnology, Jagiellonian University, 30-387 Cracow, Poland.
| | - Zbigniew Sliwowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Robert Pajdo
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Grzegorz Ginter
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Slawomir Kwiecien
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
| | - Tomasz Brzozowski
- Department of Physiology, Jagiellonian University Medical College, 31-531 Cracow, Poland.
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Gorr TA. Hypometabolism as the ultimate defence in stress response: how the comparative approach helps understanding of medically relevant questions. Acta Physiol (Oxf) 2017; 219:409-440. [PMID: 27364602 DOI: 10.1111/apha.12747] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 01/28/2016] [Accepted: 06/28/2016] [Indexed: 12/22/2022]
Abstract
First conceptualized from breath-hold diving mammals, later recognized as the ultimate cell autonomous survival strategy in anoxia-tolerant vertebrates and burrowing or hibernating rodents, hypometabolism is typically recruited by resilient organisms to withstand and recover from otherwise life-threatening hazards. Through the coordinated down-regulation of biosynthetic, proliferative and electrogenic expenditures at times when little ATP can be generated, a metabolism turned 'down to the pilot light' allows the re-balancing of energy demand with supply at a greatly suppressed level in response to noxious exogenous stimuli or seasonal endogenous cues. A unifying hallmark of stress-tolerant organisms, the adaptation effectively prevents lethal depletion of ATP, thus delineating a marked contrast with susceptible species. Along with disengaged macromolecular syntheses, attenuated transmembrane ion shuttling and PO2 -conforming respiration rates, the metabolic slowdown in tolerant species usually culminates in a non-cycling, quiescent phenotype. However, such a reprogramming also occurs in leading human pathophysiologies. Ranging from microbial infections through ischaemia-driven infarcts to solid malignancies, cells involved in these disorders may again invoke hypometabolism to endure conditions non-permissive for growth. At the same time, their reduced activities underlie the frequent development of a general resistance to therapeutic interventions. On the other hand, a controlled induction of hypometabolic and/or hypothermic states by pharmacological means has recently stimulated intense research aimed at improved organ preservation and patient survival in situations requiring acutely administered critical care. The current review article therefore presents an up-to-date survey of concepts and applications of a coordinated and reversibly down-regulated metabolic rate as the ultimate defence in stress responses.
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Affiliation(s)
- T. A. Gorr
- Institute of Veterinary Physiology; Vetsuisse Faculty; University of Zurich; Zurich Switzerland
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26
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Silymarin preconditioning protected insulin resistant rats from liver ischemia-reperfusion injury: role of endogenous H2S. J Surg Res 2016; 204:398-409. [DOI: 10.1016/j.jss.2016.04.069] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 04/21/2016] [Accepted: 04/28/2016] [Indexed: 12/26/2022]
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Chen G, Yang L, Zhong L, Kutty S, Wang Y, Cui K, Xiu J, Cao S, Huang Q, Liao W, Liao Y, Wu J, Zhang W, Bin J. Delivery of Hydrogen Sulfide by Ultrasound Targeted Microbubble Destruction Attenuates Myocardial Ischemia-reperfusion Injury. Sci Rep 2016; 6:30643. [PMID: 27469291 PMCID: PMC4965795 DOI: 10.1038/srep30643] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 07/07/2016] [Indexed: 11/21/2022] Open
Abstract
Hydrogen sulfide (H2S) is an attractive agent for myocardial ischemia-reperfusion injury, however, systemic delivery of H2S may cause unwanted side effects. Ultrasound targeted microbubble destruction has become a promising tool for organ specific delivery of bioactive substance. We hypothesized that delivery of H2S by ultrasound targeted microbubble destruction attenuates myocardial ischemia-reperfusion injury and could avoid unwanted side effects. We prepared microbubbles carrying hydrogen sulfide (hs-MB) with different H2S/C3F8 ratios (4/0, 3/1, 2/2, 1/3, 0/4) and determined the optimal ratio. Release of H2S triggered by ultrasound was investigated. The cardioprotective effect of ultrasound targeted hs-MB destruction was investigated in a rodent model of myocardial ischemia-reperfusion injury. The H2S/C3F8 ratio of 2/2 was found to be an optimal ratio to prepare stable hs-MB with higher H2S loading capability. Ultrasound targeted hs-MB destruction triggered H2S release and increased the concentration of H2S in the myocardium and lung. Ultrasound targeted hs-MB destruction limited myocardial infarct size, preserved left ventricular function and had no influence on haemodynamics and respiratory. This cardioprotective effect was associated with alleviation of apoptosis and oxidative stress. Delivery of H2S to the myocardium by ultrasound targeted hs-MB destruction attenuates myocardial ischemia-reperfusion injury and may avoid unwanted side effects.
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Affiliation(s)
- Gangbin Chen
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Li Yang
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Lintao Zhong
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Shelby Kutty
- Division of Cardiology, University of Nebraska College of Medicine, Children's Hospital &Medical Center, Omaha, Nebraska, USA
| | - Yuegang Wang
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Kai Cui
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Jiancheng Xiu
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Shiping Cao
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Qiaobing Huang
- Department of Pathophysiology, Southern Medical University, Guangzhou, P.R. China
| | - Wangjun Liao
- Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Yulin Liao
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Juefei Wu
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
| | - Wenzhu Zhang
- Department of Cardiology, Panyu Central Hospital, Guangzhou, P.R. China
| | - Jianping Bin
- State Key Laboratory of Organ Failure Research, Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China
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Chen J, Gao J, Sun W, Li L, Wang Y, Bai S, Li X, Wang R, Wu L, Li H, Xu C. Involvement of exogenous H2S in recovery of cardioprotection from ischemic post-conditioning via increase of autophagy in the aged hearts. Int J Cardiol 2016; 220:681-92. [PMID: 27393850 DOI: 10.1016/j.ijcard.2016.06.200] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/13/2016] [Accepted: 06/25/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Hydrogen sulfide (H2S), which is a member of the gasotransmitter family, plays an important physiological and pathological role in cardiovascular system. Ischemic post-conditioning (PC) provides myocardial protective effect in the young hearts but not in the aged hearts. Exogenous H2S restores PC-induced cardioprotection by inhibition of mitochondrial permeability transition pore (mPTP) in the aged hearts. However, whether H2S contributes to the recovery of PC-induced cardioprotection via up-regulation of autophagy in the aged hearts is unclear. METHODS The isolated aged rat hearts (24-months-old, 450-500g) and aged cardiomyocytes-induced by d-galactose were exposed to an ischemia/reperfusion (I/R) and PC protocol. RESULTS We found PC lost cardioprotection in the aged hearts and cardiomyocytes. NaHS (a H2S donor) significantly restored cardioprotection of PC through decreasing myocardial damage, infarct size, and apoptosis, improving cardiac function, increasing cell viability and autophagy in the aged hearts and cardiomyocytes. 3-MA (an autophagy inhibitor) abolished beneficial effect of NaHS in the aged hearts. In addition, in the aged cardiomyocytes, NaHS up-regulated AMPK/mTOR pathway, and the effect of NaHS on PC was similar to the overexpression of Atg 5, treatment of AICAR (an AMPK activator) or Rapamycin (a mTOR inhibitor, an autophagy activator), respectively. CONCLUSIONS These results suggest that exogenous H2S restores cardioprotection from PC by up-regulation of autophagy via activation of AMPK/mTOR pathway in the aged hearts and cardiomyocytes.
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Affiliation(s)
- Junting Chen
- Department of Pathophysiology, Harbin Medical University, Harbin, China; The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Jun Gao
- Department of Osteology, The First Hospital of Harbin, Harbin, China
| | - Weiming Sun
- Department of Pathophysiology, Harbin Medical University, Harbin, China; The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Lina Li
- Department of Pathophysiology, Harbin Medical University, Harbin, China; The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Yuehong Wang
- Department of Pathophysiology, Harbin Medical University, Harbin, China; The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Shuzhi Bai
- Department of Pathophysiology, Harbin Medical University, Harbin, China; The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Xiaoxue Li
- Department of Pathophysiology, Harbin Medical University, Harbin, China; The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Rui Wang
- The Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada
| | - Lingyun Wu
- The Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada
| | - Hongzhu Li
- Department of Pathophysiology, Harbin Medical University, Harbin, China; The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China.
| | - Changqing Xu
- Department of Pathophysiology, Harbin Medical University, Harbin, China; The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China.
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van Goor H, van den Born JC, Hillebrands JL, Joles JA. Hydrogen sulfide in hypertension. Curr Opin Nephrol Hypertens 2016; 25:107-13. [DOI: 10.1097/mnh.0000000000000206] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Wu L, Shao Y, Hu Z, Gao H. Effects of soluble sulfide on zebrafish (Danio rerio) embryonic development. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 42:183-189. [PMID: 26871964 DOI: 10.1016/j.etap.2016.01.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 01/23/2016] [Indexed: 06/05/2023]
Abstract
Zebrafish embryos were used to investigate the developmental effects of sulfide. Mortality, teratogenic effects, and developmental parameters of early developmental embryos were recorded. The biodistribution of sulfide in developing zebrafish embryos and larvae were measured through fluorescence imaging. The influences of sulfide on the cardiac function and development velocity of zebrafish embryos were dependent on sulfide concentration. Heart rate and development velocity increased with exposure to lower sulfide concentrations, which may be attributed to the cardioprotective properties of H2S. Meanwhile, heart rate and development velocity decreased, whereas pericardial edema, yolk sac edema, and trunk abnormalities occurred with exposure to higher sulfide concentrations. Sulfide accumulated in the blastoderm of early developmental embryos and was then transported to the yolk sac and yolk extension with the embryonic development. Finally, sulfide was transferred from the yolk to the eyes of zebrafish larvae. The details of mechanism of sulfide toxicity require further research.
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Affiliation(s)
- Lingling Wu
- Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
| | - Ying Shao
- Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China; Institute for Environmental Research (Biology V), Department of Ecosystem Analysis, RWTH Aachen University, Aachen 52074, Germany
| | - Zhangjun Hu
- Division of Molecular Surface Physics & Nanoscience, Department of Physics, Chemistry and Biology, Linköping University, Linköping 58183, Sweden
| | - Hongwen Gao
- Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China.
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Bos EM, van Goor H, Joles JA, Whiteman M, Leuvenink HGD. Hydrogen sulfide: physiological properties and therapeutic potential in ischaemia. Br J Pharmacol 2016; 172:1479-93. [PMID: 25091411 DOI: 10.1111/bph.12869] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 06/19/2014] [Accepted: 07/27/2014] [Indexed: 12/19/2022] Open
Abstract
Hydrogen sulfide (H2 S) has become a molecule of high interest in recent years, and it is now recognized as the third gasotransmitter in addition to nitric oxide and carbon monoxide. In this review, we discuss the recent literature on the physiology of endogenous and exogenous H2 S, focusing upon the protective effects of hydrogen sulfide in models of hypoxia and ischaemia.
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Affiliation(s)
- Eelke M Bos
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Snijder PM, Frenay AR, de Boer RA, Pasch A, Hillebrands JL, Leuvenink HGD, van Goor H. Exogenous administration of thiosulfate, a donor of hydrogen sulfide, attenuates angiotensin II-induced hypertensive heart disease in rats. Br J Pharmacol 2016; 172:1494-504. [PMID: 24962324 DOI: 10.1111/bph.12825] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 06/09/2014] [Accepted: 06/15/2014] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND PURPOSE Hypertension is an important mediator of cardiac damage and remodelling. Hydrogen sulfide (H2S) is an endogenously produced gasotransmitter with cardioprotective properties. However, it is not yet in clinical use. We, therefore, investigated the protective effects of sodium thiosulfate (STS), a clinically applicable H2 S donor substance, in angiotensin II (Ang II)-induced hypertensive cardiac disease in rats. EXPERIMENTAL APPROACH Male Sprague Dawley rats were infused with Ang II (435 ng kg min(-1)) or saline (control) for 3 weeks via s.c. placed osmotic minipumps. During these 3 weeks, rats received i.p. injections of either STS, NaHS or vehicle (0.9% NaCl). KEY RESULTS Compared with controls, Ang II infusion caused an increase in systolic and diastolic BP with associated cardiac damage as evidenced by cardiac hypertrophy, an increase in atrial natriuretic peptide (ANP) mRNA, cardiac fibrosis and increased oxidative stress. Treatment with NaHS and STS prevented the development of hypertension and the increase in ANP mRNA levels. Furthermore, the degree of cardiac hypertrophy, the extent of histological fibrosis in combination with the expression of profibrotic genes and the levels of oxidative stress were all significantly decreased. CONCLUSIONS AND IMPLICATIONS Ang II-induced hypertensive cardiac disease can be attenuated by treatment with STS and NaHS. Although BP regulation is the most plausible mechanism of cardiac protection, the antifibrotic and antioxidant properties of released sulfide may also contribute to their effects. Our data show that H2 S might be a valuable addition to the already existing antihypertensive and cardioprotective therapies.
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Affiliation(s)
- P M Snijder
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Department of Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Gur S, Kadowitz PJ, Sikka SC, Peak TC, Hellstrom WJ. Overview of potential molecular targets for hydrogen sulfide: A new strategy for treating erectile dysfunction. Nitric Oxide 2015; 50:65-78. [DOI: 10.1016/j.niox.2015.08.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 08/05/2015] [Accepted: 08/22/2015] [Indexed: 01/04/2023]
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Li C, Hu M, Wang Y, Lu H, Deng J, Yan X. Hydrogen sulfide preconditioning protects against myocardial ischemia/reperfusion injury in rats through inhibition of endo/sarcoplasmic reticulum stress. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:7740-7751. [PMID: 26339339 PMCID: PMC4555667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 06/22/2015] [Indexed: 06/05/2023]
Abstract
Ischemia reperfusion (I/R) injury is a major cause of myocardial damage. Hydrogen sulfide (H2S), a gaseous signal molecule, has drawn considerable attention for its role in various pathophysiological processes. Multiple lines of evidence reveal the protective effects of H2S in various models of cardiac injury, however, the exact mechanism underlying this protective effect of H2S against myocardial I/R injury is not fully understood. The present study was designed to investigate whether H2S preconditioning attenuates myocardial I/R injury in rats and whether the observed protection is associated with reduced endo/sarcoplasmic reticulum (ER/SR) stress. We found that H2S preconditioning significantly reduced myocardial infarct size, preserved left ventricular function, and inhibited I/R-induced cardiomyocyte apoptosis in vivo. Furthermore, H2S preconditioning significantly attenuated I/R-induced ER/SR stress responses, including the increased expression of glucose-regulated protein 78, C/EBP homologous protein, and activate transcription factor in myocardium. Additionally, we demonstrate that H2S preconditioning attenuates ER/SR stress and inhibits cardiomyocyte apoptosis in an in vitro model of hypoxia/reoxygenation in rat H9c2 cardiac myocytes. In conclusion, these results suggest that H2S-attenuated ER/SR stress plays an important role in its protective effects against I/R-induced myocardial injury.
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Affiliation(s)
- Changyong Li
- Department of Physiology, School of Basic Medical Sciences, Wuhan University Wuhan, Hubei, China
| | - Min Hu
- Department of Physiology, School of Basic Medical Sciences, Wuhan University Wuhan, Hubei, China
| | - Yuan Wang
- Department of Physiology, School of Basic Medical Sciences, Wuhan University Wuhan, Hubei, China
| | - Huan Lu
- Department of Physiology, School of Basic Medical Sciences, Wuhan University Wuhan, Hubei, China
| | - Jing Deng
- Department of Physiology, School of Basic Medical Sciences, Wuhan University Wuhan, Hubei, China
| | - Xiaohong Yan
- Department of Physiology, School of Basic Medical Sciences, Wuhan University Wuhan, Hubei, China
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Role of Hydrogen Sulfide in Ischemia-Reperfusion Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:186908. [PMID: 26064416 PMCID: PMC4443900 DOI: 10.1155/2015/186908] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/10/2014] [Accepted: 12/10/2014] [Indexed: 12/13/2022]
Abstract
Ischemia-reperfusion (I/R) injury is one of the major causes of high morbidity, disability, and mortality in the world. I/R injury remains a complicated and unresolved situation in clinical practice, especially in the field of solid organ transplantation. Hydrogen sulfide (H2S) is the third gaseous signaling molecule and plays a broad range of physiological and pathophysiological roles in mammals. H2S could protect against I/R injury in many organs and tissues, such as heart, liver, kidney, brain, intestine, stomach, hind-limb, lung, and retina. The goal of this review is to highlight recent findings regarding the role of H2S in I/R injury. In this review, we present the production and metabolism of H2S and further discuss the effect and mechanism of H2S in I/R injury.
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Hydrogen Sulfide as a Potential Therapeutic Target in Fibrosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:593407. [PMID: 26078809 PMCID: PMC4442300 DOI: 10.1155/2015/593407] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 11/29/2014] [Indexed: 12/24/2022]
Abstract
Hydrogen sulfide (H2S), produced endogenously by the activation of two major H2S-generating enzymes (cystathionine β-synthase and cystathionine γ-lyase), plays important regulatory roles in different physiologic and pathologic conditions. The abnormal metabolism of H2S is associated with fibrosis pathogenesis, causing damage in structure and function of different organs. A number of in vivo and in vitro studies have shown that both endogenous H2S level and the expressions of H2S-generating enzymes in plasma and tissues are significantly downregulated during fibrosis. Supplement with exogenous H2S mitigates the severity of fibrosis in various experimental animal models. The protective role of H2S in the development of fibrosis is primarily attributed to its antioxidation, antiapoptosis, anti-inflammation, proangiogenesis, and inhibition of fibroblasts activities. Future studies might focus on the potential to intervene fibrosis by targeting the pathway of endogenous H2S-producing enzymes and H2S itself.
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Kesherwani V, Nandi SS, Sharawat SK, Shahshahan HR, Mishra PK. Hydrogen sulfide mitigates homocysteine-mediated pathological remodeling by inducing miR-133a in cardiomyocytes. Mol Cell Biochem 2015; 404:241-50. [PMID: 25763715 DOI: 10.1007/s11010-015-2383-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 03/05/2015] [Indexed: 12/13/2022]
Abstract
An elevated level of homocysteine called hyperhomocysteinemia (HHcy) is associated with pathological cardiac remodeling. Hydrogen sulfide (H2S) acts as a cardioprotective gas; however, the mechanism by which H2S mitigates homocysteine-mediated pathological remodeling in cardiomyocytes is unclear. We hypothesized that H2S ameliorates HHcy-mediated hypertrophy by inducing cardioprotective miR-133a in cardiomyocytes. To test the hypothesis, HL1 cardiomyocytes were treated with (1) plain medium (control, CT), (2) 100 µM of homocysteine (Hcy), (3) Hcy with 30 µM of H2S (Hcy + H2S), and (4) H2S for 24 h. The levels of hypertrophy markers: c-fos, atrial natriuretic peptide (ANP), and beta-myosin heavy chain (β-MHC), miR-133a, and its transcriptional inducer myosin enhancer factor-2C (MEF2C) were determined by Western blotting, RT-qPCR, and immunofluorescence. The activity of MEF2C was assessed by co-immunoprecipitation of MEF2C with histone deacetylase-1(HDAC1). Our results show that H2S ameliorates homocysteine-mediated up-regulation of c-fos, ANP, and β-MHC, and down-regulation of MEF2C and miR-133a. HHcy induces the binding of MEF2C with HDAC1, whereas H2S releases MEF2C from MEF2C-HDAC1 complex causing activation of MEF2C. These findings elicit that HHcy induces cardiac hypertrophy by promoting MEF2C-HDAC1 complex formation that inactivates MEF2C causing suppression of anti-hypertrophy miR-133a in cardiomyocytes. H2S mitigates hypertrophy by inducing miR-133a through activation of MEF2C in HHcy cardiomyocytes. To our knowledge, this is a novel mechanism of H2S-mediated activation of MEF2C and induction of miR-133a and inhibition of hypertrophy in HHcy cardiomyocytes.
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Affiliation(s)
- Varun Kesherwani
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, 668 S 41st Street, DRC1, Room 5047, Omaha, NE, 68198-5850, USA
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Xie H, Xu Q, Jia J, Ao G, Sun Y, Hu L, Alkayed NJ, Wang C, Cheng J. Hydrogen sulfide protects against myocardial ischemia and reperfusion injury by activating AMP-activated protein kinase to restore autophagic flux. Biochem Biophys Res Commun 2015; 458:632-638. [DOI: 10.1016/j.bbrc.2015.02.017] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 02/04/2015] [Indexed: 11/26/2022]
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Jochmans I, O'Callaghan JM, Pirenne J, Ploeg RJ. Hypothermic machine perfusion of kidneys retrieved from standard and high-risk donors. Transpl Int 2015; 28:665-76. [PMID: 25630347 DOI: 10.1111/tri.12530] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 12/23/2014] [Accepted: 01/22/2015] [Indexed: 01/15/2023]
Abstract
Hypothermic machine perfusion (HMP) of kidneys is a long-established alternative to static cold storage and has been suggested to be a better preservation method. Today, as our deceased donor profile continues to change towards higher-risk kidneys of lower quality, we are confronted with the limits of cold storage. Interest in HMP as a preservation technique is on the rise. Furthermore, HMP also creates a window of opportunity during which to assess the viability and quality of the graft before transplantation. The technology might also provide a platform during which the graft could be actively repaired, making it particularly attractive for higher-risk kidneys. We review the current evidence on HMP in kidney transplantation and provide an outlook for the use of the technology in the years to come.
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Affiliation(s)
- Ina Jochmans
- Department of Microbiology and Immunology, Abdominal Transplantation, KU Leuven - University of Leuven, Leuven, Belgium.,Department of Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium
| | - John M O'Callaghan
- Nuffield Department of Surgical Sciences, Biomedical Research Centre and Oxford Transplant Centre, University of Oxford, Oxford, UK.,Centre for Evidence in Transplantation, Royal College of Surgeons of England and London School of Hygiene and Tropical Medicine, London, UK
| | - Jacques Pirenne
- Department of Microbiology and Immunology, Abdominal Transplantation, KU Leuven - University of Leuven, Leuven, Belgium.,Department of Abdominal Transplant Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Rutger J Ploeg
- Nuffield Department of Surgical Sciences, Biomedical Research Centre and Oxford Transplant Centre, University of Oxford, Oxford, UK
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Li H, Feng SJ, Zhang GZ, Wang SX. Correlation of lower concentrations of hydrogen sulfide with atherosclerosis in chronic hemodialysis patients with diabetic nephropathy. Blood Purif 2014; 38:188-94. [PMID: 25531647 DOI: 10.1159/000368883] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 10/03/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS To explore the relationship between hydrogen sulfide (H2S) and uremic accelerated atherosclerosis (UAAS) in chronic hemodialysis patients with diabetic nephropathy (CHD/DN). METHODS A total of 36 CHD/DN and 32 chronic hemodialyzed non-diabetic patients with chronic glomerulonephritis (CHD/non-DN) were studied. Plasma H2S was measured with a sulfide sensitive electrode. RESULTS Plasma H2S in CHD/DN was significantly lower than that in CHD/non-DN patients. Plasma H2S was positively correlated with plasma TGF-β1, and negatively correlated with MMP-12 in CHD/DN patients. CHD/DN patients exhibited higher CCA-IMT, hsCRP, and lower H2S levels than in CHD/non-DN patients. Moreover, in CHD/DN patients, CCA-IMT was negatively correlated with plasma H2S, and positively correlated with hsCRP and LDL. On multiple regression analysis, H2S levels exhibited independent association with IMT in CHD/DN patients. CONCLUSIONS These findings suggest possible linkage between H2S metabolism and TGF-β/Smad signaling pathway modulation abnormalities that may contribute to the development of UAAS in CHD/DN patients.
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Affiliation(s)
- Han Li
- Department of Blood Purification, Beijing Chao-Yang Hospital, Capital Medical University, Nephrology Faculty, Capital Medical University, Beijing, China
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42
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Módis K, Bos EM, Calzia E, van Goor H, Coletta C, Papapetropoulos A, Hellmich MR, Radermacher P, Bouillaud F, Szabo C. Regulation of mitochondrial bioenergetic function by hydrogen sulfide. Part II. Pathophysiological and therapeutic aspects. Br J Pharmacol 2014; 171:2123-46. [PMID: 23991749 DOI: 10.1111/bph.12368] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Revised: 07/30/2013] [Accepted: 08/05/2013] [Indexed: 12/15/2022] Open
Abstract
Emerging work demonstrates the dual regulation of mitochondrial function by hydrogen sulfide (H2 S), including, at lower concentrations, a stimulatory effect as an electron donor, and, at higher concentrations, an inhibitory effect on cytochrome C oxidase. In the current article, we overview the pathophysiological and therapeutic aspects of these processes. During cellular hypoxia/acidosis, the inhibitory effect of H2 S on complex IV is enhanced, which may shift the balance of H2 S from protective to deleterious. Several pathophysiological conditions are associated with an overproduction of H2 S (e.g. sepsis), while in other disease states H2 S levels and H2 S bioavailability are reduced and its therapeutic replacement is warranted (e.g. diabetic vascular complications). Moreover, recent studies demonstrate that colorectal cancer cells up-regulate the H2 S-producing enzyme cystathionine β-synthase (CBS), and utilize its product, H2 S, as a metabolic fuel and tumour-cell survival factor; pharmacological CBS inhibition or genetic CBS silencing suppresses cancer cell bioenergetics and suppresses cell proliferation and cell chemotaxis. In the last chapter of the current article, we overview the field of H2 S-induced therapeutic 'suspended animation', a concept in which a temporary pharmacological reduction in cell metabolism is achieved, producing a decreased oxygen demand for the experimental therapy of critical illness and/or organ transplantation.
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Affiliation(s)
- Katalin Módis
- Department of Anesthesiology, University of Texas Medical Branch, Galveston, TX, USA
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Snijder PM, Frenay ARS, Koning AM, Bachtler M, Pasch A, Kwakernaak AJ, van den Berg E, Bos EM, Hillebrands JL, Navis G, Leuvenink HGD, van Goor H. Sodium thiosulfate attenuates angiotensin II-induced hypertension, proteinuria and renal damage. Nitric Oxide 2014; 42:87-98. [PMID: 25459997 DOI: 10.1016/j.niox.2014.10.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 10/05/2014] [Accepted: 10/09/2014] [Indexed: 01/03/2023]
Abstract
Hypertension and proteinuria are important mediators of renal damage. Despite therapeutic interventions, the number of patients with end stage renal disease steadily increases. Hydrogen sulfide (H(2)S) is an endogenously produced gasotransmitter with vasodilatory, anti-inflammatory and antioxidant properties. These beneficial characteristics make H(2)S an attractive candidate for pharmacological use in hypertensive renal disease. We investigated the protective properties of H(2)S in angiotensin II (Ang II)-induced hypertensive renal disease in rats. Treatment with the H(2)S donor NaHS and major H(2)S metabolite sodium thiosulfate (STS) during three weeks of Ang II infusion reduced hypertension, proteinuria, oxidative stress and renal functional and structural deterioration. In an ex vivo isolated perfused kidney setup, NaHS, but not STS, reduced intrarenal pressure. The effect of NaHS could partially be explained by its activation of the ATP-sensitive potassium channels. In conclusion, treatment with H(2)S attenuates Ang II-associated functional and structural renal deterioration, suggesting that intervention in H(2)S production pathways has potential therapeutic benefit and might be a valuable addition to the already existing antihypertensive and renoprotective therapies.
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Affiliation(s)
- Pauline M Snijder
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anne-Roos S Frenay
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anne M Koning
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Matthias Bachtler
- Department of Nephrology, Hypertension and Clinical Pharmacology, University Hospital Bern, Inselspital, Bern, Switzerland
| | - Andreas Pasch
- Department of Nephrology, Hypertension and Clinical Pharmacology, University Hospital Bern, Inselspital, Bern, Switzerland
| | - Arjan J Kwakernaak
- Kidney Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Else van den Berg
- Kidney Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Eelke M Bos
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands; Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jan-Luuk Hillebrands
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gerjan Navis
- Kidney Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Henri G D Leuvenink
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Harry van Goor
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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Hydrogen sulfide attenuates the recruitment of CD11b⁺Gr-1⁺ myeloid cells and regulates Bax/Bcl-2 signaling in myocardial ischemia injury. Sci Rep 2014; 4:4774. [PMID: 24758901 PMCID: PMC3998019 DOI: 10.1038/srep04774] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 04/04/2014] [Indexed: 12/24/2022] Open
Abstract
Hydrogen sulfide, an endogenous signaling molecule, plays an important role in the physiology and pathophysiology of the cardiovascular system. Using a mouse model of myocardial infarction, we investigated the anti-inflammatory and anti-apoptotic effects of the H2S donor sodium hydrosulfide (NaHS). The results demonstrated that the administration of NaHS improved survival, preserved left ventricular function, limited infarct size, and improved H2S levels in cardiac tissue to attenuate the recruitment of CD11b+Gr-1+ myeloid cells and to regulate the Bax/Bcl-2 pathway. Furthermore, the cardioprotective effects of NaHS were enhanced by inhibiting the migration of CD11b+Gr-1+ myeloid cells from the spleen into the blood and by attenuating post-infarction inflammation. These observations suggest that the novel mechanism underlying the cardioprotective function of H2S is secondary to a combination of attenuation the recruitment of CD11b+Gr-1+ myeloid cells and regulation of the Bax/Bcl-2 apoptotic signaling.
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Asfar P, Calzia E, Radermacher P. Is pharmacological, H₂S-induced 'suspended animation' feasible in the ICU? CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2014; 18:215. [PMID: 25028804 PMCID: PMC4060059 DOI: 10.1186/cc13782] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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A hypothesis: hydrogen sulfide might be neuroprotective against subarachnoid hemorrhage induced brain injury. ScientificWorldJournal 2014; 2014:432318. [PMID: 24707204 PMCID: PMC3953624 DOI: 10.1155/2014/432318] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 01/15/2014] [Indexed: 12/21/2022] Open
Abstract
Gases such as nitric oxide (NO) and carbon monoxide (CO) play important roles both in normal physiology and in disease. Recent studies have shown that hydrogen sulfide (H2S) protects neurons against oxidative stress and ischemia-reperfusion injury and attenuates lipopolysaccharides (LPS) induced neuroinflammation in microglia, exhibiting anti-inflammatory and antiapoptotic activities. The gas H2S is emerging as a novel regulator of important physiologic functions such as arterial diameter, blood flow, and leukocyte adhesion. It has been known that multiple factors, including oxidative stress, free radicals, and neuronal nitric oxide synthesis as well as abnormal inflammatory responses, are involved in the mechanism underlying the brain injury after subarachnoid hemorrhage (SAH). Based on the multiple physiologic functions of H2S, we speculate that it might be a promising, effective, and specific therapy for brain injury after SAH.
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Ekundi-Valentim E, Mesquita FP, Santos KT, de Paula MAV, Florenzano J, Zanoni CI, Rodrigues L, de Nucci G, Teixeira SA, Ferreira HH, Wallace JL, Costa SK, Muscará MN. A comparative study on the anti-inflammatory effects of single oral doses of naproxen and its hydrogen sulfide (H2S)-releasing derivative ATB-346 in rats with carrageenan-induced synovitis. Med Gas Res 2013; 3:24. [PMID: 24237604 PMCID: PMC3843537 DOI: 10.1186/2045-9912-3-24] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 11/05/2013] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Non-steroidal antiinflammatory drugs (NSAIDs) are the most commonly prescribed agents for arthritic patients, although gastric effects limit their long-term use. Considering the reported gastric safety of hydrogen sulfide (H2S)-releasing NSAIDs, in addition to the anti-inflammatory effects of H2S administration to rats with synovitis, we decided to evaluate the effects of the H2S-releasing naproxen derivative ATB-346 in this animal model. METHODS Male Wistar rats were anesthetized with inhalatory halothane and pre-treated with equimolar oral doses of either naproxen (0.3, 1, 3 or 10 mg/kg) or ATB-346 (0.48, 1.6, 4.8, or 16 mg/kg) 30 min before the i.art. injection of 7.5 mg of carrageenan (CGN) into the right knee joint cavity. Joint swelling and pain score were assessed after 1, 3 and 5 h, and tactile allodynia after 2 and 4 h. After the last measurement, the joint cavity lavages were performed for counting of the recruited leukocytes. The drugs (at the highest doses) were also tested for their gastric effects by evaluating macroscopical damage score and neutrophil recruitment (measured as myeloperoxidase - MPO activity) in the stomachs 5 h after administration of the drugs. In addition, the serum naproxen pharmacokinetic profiles of both compounds, administered at the highest equimolar doses, were obtained during the first 6 h after dosing. RESULTS At the two highest tested doses, both naproxen and ATB-346 reduced edema and pain score (measured 3 and 5 h after CGN; P < 0.001). Tactile allodynia was similarly inhibited by ~45% 4 h after CGN by both naproxen (at 1, 3 and 10 mg/kg) and ATB-346 (at 1.6 and 4.8 mg/kg; P < 0.001), as well as leukocyte infiltration. Naproxen (but not ATB-346) induced significant gastric damage and, despite the increased gastric MPO activity by ~130% in the naproxen-, but not in the ATB-346-treated rats, this effect was of no statistical significance. CONCLUSION The presence of a H2S-releasing moiety in the ATB-346 structure does not impair the antiinflammatory activity of the parent compound in rats with CGN-induced synovitis. In addition, released H2S may account for the absence of deleterious gastric effects, thus making of ATB-346 a potentially useful therapeutic alternative to traditional naproxen for treatment of patients with arthritis.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - Marcelo N Muscará
- Department of Pharmacology, Institute of Biomedical Sciences, University of Sao Paulo, Av, Prof, Lineu Prestes, 1524, São Paulo 05508-000, SP, Brazil.
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48
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Zhang Q, Fu H, Zhang H, Xu F, Zou Z, Liu M, Wang Q, Miao M, Shi X. Hydrogen sulfide preconditioning protects rat liver against ischemia/reperfusion injury by activating Akt-GSK-3β signaling and inhibiting mitochondrial permeability transition. PLoS One 2013; 8:e74422. [PMID: 24058562 PMCID: PMC3772845 DOI: 10.1371/journal.pone.0074422] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 08/02/2013] [Indexed: 01/23/2023] Open
Abstract
Hydrogen sulfide (H2S) is the third most common endogenously produced gaseous signaling molecule, but its impact on hepatic ischemia/reperfusion (I/R) injury, especially on mitochondrial function, remains unclear. In this study, rats were randomized into Sham, I/R, ischemia preconditioning (IPC) or sodium hydrosulfide (NaHS, an H2S donor) preconditioning groups. To establish a model of segmental (70%) warm hepatic ischemia, the hepatic artery, left portal vein and median liver lobes were occluded for 60 min and then unclamped to allow reperfusion. Preconditioning with 12.5, 25 or 50 μmol/kg NaHS prior to the I/R insult significantly increased serum H2S levels, and, similar to IPC, NaHS preconditioning decreased alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels in the plasma and prevented hepatocytes from undergoing I/R-induced necrosis. Moreover, a sub-toxic dose of NaHS (25 μmol/kg) did not disrupt the systemic hemodynamics but dramatically inhibited mitochondrial permeability transition pore (MPTP) opening and thus prevented mitochondrial-related cell death and apoptosis. Mechanistic studies revealed that NaHS preconditioning markedly increased the expression of phosphorylated protein kinase B (p-Akt), phosphorylated glycogen synthase kinase-3 beta (p-GSK-3β) and B-cell lymphoma-2 (Bcl-2) and decreased the release of mitochondrial cytochrome c and cleaved caspase-3/9 levels. Therefore, NaHS administration prior to hepatic I/R ameliorates mitochondrial and hepatocellular damage through the inhibition of MPTP opening and the activation of Akt-GSK-3β signaling. Furthermore, this study provides experimental evidence for the clinical use of H2S to reduce liver damage after perioperative I/R injury.
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Affiliation(s)
- Qingqing Zhang
- Department of Anesthesiology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Hailong Fu
- Department of Anesthesiology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Hao Zhang
- Department of Anesthesiology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Fengying Xu
- Department of Anesthesiology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Zui Zou
- Department of Anesthesiology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Meng Liu
- Department of Anesthesiology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Quanxing Wang
- National Key Laboratory of Medical Immunology and Department of Immunology, Second Military Medical University, Shanghai, China
| | - Mingyong Miao
- Department of Biochemistry and Molecular Biology, Second Military Medical University, Shanghai, China
| | - Xueyin Shi
- Department of Anesthesiology, Changzheng Hospital, Second Military Medical University, Shanghai, China
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Módis K, Panopoulos P, Coletta C, Papapetropoulos A, Szabo C. Hydrogen sulfide-mediated stimulation of mitochondrial electron transport involves inhibition of the mitochondrial phosphodiesterase 2A, elevation of cAMP and activation of protein kinase A. Biochem Pharmacol 2013; 86:1311-9. [PMID: 24012591 DOI: 10.1016/j.bcp.2013.08.064] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 08/26/2013] [Accepted: 08/26/2013] [Indexed: 01/11/2023]
Abstract
Although hydrogen sulfide (H₂S) is generally known as a mitochondrial poison, recent studies show that lower concentrations of H₂S play a physiological role in the stimulation of mitochondrial electron transport and cellular bioenergetics. This effect involves electron donation at Complex II. Other lines of recent studies demonstrated that one of the biological actions of H₂S involves inhibition of cAMP and cGMP phosphodiesterases (PDEs). Given the emerging functional role of the mitochondrial isoform of cAMP PDE (PDE2A) in the regulation of mitochondrial function the current study investigated whether cAMP-dependent mechanisms participate in the stimulatory effect of NaHS on mitochondrial function. In isolated rat liver mitochondria, partial digestion studies localized PDE2A into the mitochondrial matrix. NaHS exerted a concentration-dependent inhibitory effect on recombinant PDE2A enzyme in vitro. Moreover, NaHS induced an elevation of cAMP levels when added to isolated mitochondria and stimulated the mitochondrial electron transport. The latter effect was inhibited by Rp-cAMP, an inhibitor of the cAMP-dependent protein kinase (PKA). The current findings suggest that the direct electron donating effect of NaHS is amplified by an intramitochondrial cAMP system, which may involve the inhibition of PDE2A and subsequent, cAMP-mediated stimulation of PKA.
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Affiliation(s)
- Katalin Módis
- Department of Anesthesiology, University of Texas Medical Branch, and Shriners Burns Hospital for Children, 601 Harborside Drive, Galveston, TX 77555, USA
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