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Tian Z, Li Z. Protective function of albiflorin against ferroptosis in exhaustive exerciseinduced myocardial injury via the AKT/Nrf2/HO-1 signaling. Acta Cir Bras 2024; 39:e393524. [PMID: 39140524 PMCID: PMC11321502 DOI: 10.1590/acb393524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 05/10/2024] [Indexed: 08/15/2024] Open
Abstract
PURPOSE It has been reported that exhaustive exercise (EE) causes myocyte injury, and eventually damages the function of the myocardia. Albiflorin (AF) has anti-inflammatory, antioxidant, and anti-apoptosis effects. In this study, we determined whether AF could mitigate the EE-induced myocardial injury and research the potential mechanisms. METHODS The rat model of EE was built by forced treadmill running method. Rats were intraperitoneally injected with AF before EE once daily for one week. The relative factors levels were examined by commercial kits. The apoptosis was appraised using a TdT-mediated dUTP nick end labeling assay kit. The ACSL4, GPX4, Nrf2, pAKT/AKT, and HO-1 contents were assessed by western blot. RESULTS AF lessened EE-induced cardiac myocytes ischemic/hypoxic injury and reduced the contents of myocardial injury biomarkers in the serum. AF lessened EE-induced cardiac myocyte apoptosis, inflammatory response, oxidative stress, and ferroptosis in myocardial tissues. However, the influences of AF were overturned by the co-treatment of AF and LY294002. AF activated the AKT/Nrf2/HO-1 signaling pathway in myocardial tissues in vivo. CONCLUSIONS AF could curb cardiac myocytes ferroptosis, thus diminishing the EE-induced myocardial injury through activating the AKT/Nrf2/HO-1 cascade.
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Affiliation(s)
- Zhuang Tian
- Zhengzhou University – College of Physical Education – Zhengzhou, Henan Province, China
- Jeonbuk National University – College of Natural Science – Department of Sport Science – Jeonju, South Korea
| | - Zhenyu Li
- Jeonbuk National University – College of Natural Science – Department of Sport Science – Jeonju, South Korea
- Sias University – Xinzheng, Henan Province, China
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2
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Galis P, Bartosova L, Farkasova V, Bartekova M, Ferenczyova K, Rajtik T. Update on clinical and experimental management of diabetic cardiomyopathy: addressing current and future therapy. Front Endocrinol (Lausanne) 2024; 15:1451100. [PMID: 39140033 PMCID: PMC11319149 DOI: 10.3389/fendo.2024.1451100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Accepted: 07/12/2024] [Indexed: 08/15/2024] Open
Abstract
Diabetic cardiomyopathy (DCM) is a severe secondary complication of type 2 diabetes mellitus (T2DM) that is diagnosed as a heart disease occurring in the absence of any previous cardiovascular pathology in diabetic patients. Although it is still lacking an exact definition as it combines aspects of both pathologies - T2DM and heart failure, more evidence comes forward that declares DCM as one complex disease that should be treated separately. It is the ambiguous pathological phenotype, symptoms or biomarkers that makes DCM hard to diagnose and screen for its early onset. This re-view provides an updated look on the novel advances in DCM diagnosis and treatment in the experimental and clinical settings. Management of patients with DCM proposes a challenge by itself and we aim to help navigate and advice clinicians with early screening and pharmacotherapy of DCM.
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Affiliation(s)
- Peter Galis
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovakia
| | - Linda Bartosova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovakia
| | - Veronika Farkasova
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Monika Bartekova
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
- Institute of Physiology, Faculty of Medicine, Comenius University Bratislava, Bratislava, Slovakia
| | - Kristina Ferenczyova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovakia
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Tomas Rajtik
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University Bratislava, Bratislava, Slovakia
- Institute for Heart Research, Centre of Experimental Medicine, Slovak Academy of Sciences, Bratislava, Slovakia
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3
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Pușcaș A, Ștefănescu R, Vari CE, Ősz BE, Filip C, Bitzan JK, Buț MG, Tero-Vescan A. Biochemical Aspects That Lead to Abusive Use of Trimetazidine in Performance Athletes: A Mini-Review. Int J Mol Sci 2024; 25:1605. [PMID: 38338885 PMCID: PMC10855343 DOI: 10.3390/ijms25031605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
Trimetazidine (TMZ), used for treating stable angina pectoris, has garnered attention in the realm of sports due to its potential performance-enhancing properties, and the World Anti-Doping Agency (WADA) has classified TMZ on the S4 list of prohibited substances since 2014. The purpose of this narrative mini-review is to emphasize the biochemical aspects underlying the abusive use of TMZ among athletes as a metabolic modulator of cardiac energy metabolism. The myocardium's ability to adapt its energy substrate utilization between glucose and fatty acids is crucial for maintaining cardiac function under various conditions, such as rest, moderate exercise, and intense effort. TMZ acts as a partial inhibitor of fatty acid oxidation by inhibiting 3-ketoacyl-CoA thiolase (KAT), shifting energy production from long-chain fatty acids to glucose, reducing oxygen consumption, improving cardiac function, and enhancing exercise capacity. Furthermore, TMZ modulates pyruvate dehydrogenase (PDH) activity, promoting glucose oxidation while lowering lactate production, and ultimately stabilizing myocardial function. TMZs role in reducing oxidative stress is notable, as it activates antioxidant enzymes like glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD). In conclusion, TMZs biochemical mechanisms make it an attractive but controversial option for athletes seeking a competitive edge.
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Affiliation(s)
- Amalia Pușcaș
- Biochemistry and Chemistry of the Environmental Factors Department, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (A.P.); (C.F.)
| | - Ruxandra Ștefănescu
- Pharmacognosy and Phytotherapy Department, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania
| | - Camil-Eugen Vari
- Pharmacology and Clinical Pharmacy Department, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (C.-E.V.); (B.-E.Ő.)
| | - Bianca-Eugenia Ősz
- Pharmacology and Clinical Pharmacy Department, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (C.-E.V.); (B.-E.Ő.)
| | - Cristina Filip
- Biochemistry and Chemistry of the Environmental Factors Department, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (A.P.); (C.F.)
| | - Jana Karlina Bitzan
- Medical Chemistry and Biochemistry Department, Faculty of Medicine in English, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, Campus Hamburg—UMCH, 22761 Hamburg, Germany;
| | - Mădălina-Georgiana Buț
- Medical Chemistry and Biochemistry Department, Faculty of Medicine in English, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (M.-G.B.); (A.T.-V.)
| | - Amelia Tero-Vescan
- Medical Chemistry and Biochemistry Department, Faculty of Medicine in English, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (M.-G.B.); (A.T.-V.)
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4
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Hassan FE, Aboulhoda BE, Ali IH, Elwi HM, Matter LM, Abdallah HA, Khalifa MM, Selmy A, Alghamdi MA, Morsy SA, Al Dreny BA. Evaluating the protective role of trimetazidine versus nano-trimetazidine in amelioration of bilateral renal ischemia/reperfusion induced neuro-degeneration: Implications of ERK1/2, JNK and Galectin-3 /NF-κB/TNF-α/HMGB-1 signaling. Tissue Cell 2023; 85:102241. [PMID: 37865040 DOI: 10.1016/j.tice.2023.102241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/24/2023] [Accepted: 10/13/2023] [Indexed: 10/23/2023]
Abstract
BACKGROUND Renal ischemia/reperfusion (I/R) is a primary culprit of acute kidney injury. Neurodegeneration can result from I/R, but the mechanisms are still challenging. We studied the implications of bilateral renal I/R on brain and potential involvement of the oxidative stress (OS) driven extracellular signal-regulated kinase1/2, c-Jun N-terminal kinase (ERK1/2, JNK) and Galectin-3 (Gal-3)/nuclear factor Kappa B (NF-қB)/tumor necrosis factor-alpha (TNF-α), high mobility group box-1 (HMGB-1), and caspase-3 paths upregulation. We tested the impact of Nano-trimetazidine (Nano-TMZ) on these pathways being a target of its neuroprotective effects. METHODS Study groups; Sham, I/R, TMZ+I/R, and Nano-TMZ+I/R. Kidney functions, cognition, hippocampal OS markers, Gal-3, NF-қB, p65 and HMGB-1 gene expression, TNF-α level, t-JNK/p-JNK and t-ERK/p-ERK proteins, caspase-3, glial fibrillary acidic protein (GFAP) and ionized calcium binding protein-1 (Iba-1) were assessed. RESULTS Nano-TMZ averted renal I/R-induced hippocampal impairment by virtue of its anti: oxidative, inflammatory, and apoptotic properties. CONCLUSION Nano-TMZ is more than anti-ischemic.
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Affiliation(s)
- Fatma E Hassan
- Medical Physiology Department, Kasr Alainy, Faculty of Medicine, Cairo University, Giza 11562, Egypt; General Medicine Practice Program, Department of Physiology, Batterjee Medical College, Jeddah 21442, Saudi Arabia
| | - Basma Emad Aboulhoda
- Anatomy and Embryology Department, Faculty of Medicine, Cairo University, Egypt.
| | - Isra H Ali
- Department of Pharmaceutics, Faculty of Pharmacy, University of Sadat City, P.O. Box 32897, Sadat City, Egypt; Nanomedicine Laboratory, Faculty of Pharmacy, University of Sadat City, P.O. Box 32897, Sadat City, Egypt
| | - Heba M Elwi
- Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Egypt
| | - Lamiaa M Matter
- Medical pharmacology, Kasr Alainy, Faculty of Medicine, Cairo University, Egypt
| | - Hend Ahmed Abdallah
- Anatomy and Embryology Department, Faculty of Medicine, Cairo University, Egypt
| | - Mohamed Mansour Khalifa
- Medical Physiology Department, Kasr Alainy, Faculty of Medicine, Cairo University, Giza 11562, Egypt; Department of Human Physiology, College of Medicine, King Saud University, Saudi Arabia
| | - Asmaa Selmy
- Medical Physiology Department, Kasr Alainy, Faculty of Medicine, Cairo University, Giza 11562, Egypt
| | - Mansour A Alghamdi
- Department of Anatomy, College of Medicine, King Khalid University, Abha 62529, Saudi Arabia; Genomics and Personalized Medicine Unit, College of Medicine, King Khalid University, Abha 62529, Saudi Arabia
| | - Suzan Awad Morsy
- Fakeeh College For Medical Sciences, Jeddah, Saudi Arabia; Faculty of Medicine, Alexandria University, Egypt
| | - Basant A Al Dreny
- Medical Physiology Department, Kasr Alainy, Faculty of Medicine, Cairo University, Giza 11562, Egypt
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5
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Kamranian H, Asoudeh H, Sharif RK, Taheri F, Hayes AW, Gholami M, Alavi A, Motaghinejad M. Neuroprotective potential of trimetazidine against tramadol-induced neurotoxicity: role of PI3K/Akt/mTOR signaling pathways. Toxicol Mech Methods 2023; 33:607-623. [PMID: 37051630 DOI: 10.1080/15376516.2023.2202785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/10/2023] [Accepted: 04/10/2023] [Indexed: 04/14/2023]
Abstract
Tramadol (TRA) causes neurotoxicity whereas trimetazidine (TMZ) is neuroprotective. The potential involvement of the PI3K/Akt/mTOR signaling pathway in the neuroprotection of TMZ against TRA-induced neurotoxicity was evaluated. Seventy male Wistar rats were divided into groups. Groups 1 and 2 received saline or TRA (50 mg/kg). Groups 3, 4, and 5 received TRA (50 mg/kg) and TMZ (40, 80, or 160 mg/kg) for 14 days. Group 6 received TMZ (160 mg/kg). Hippocampal neurodegenerative, mitochondrial quadruple complex enzymes, phosphatidylinositol-3-kinases (PI3Ks)/protein kinase B levels, oxidative stress, inflammatory, apoptosis, autophagy, and histopathology were evaluated. TMZ decreased anxiety and depressive-like behavior induced by TRA. TMZ in tramadol-treated animals inhibited lipid peroxidation, GSSG, TNF-α, and IL-1β while increasing GSH, SOD, GPx, GR, and mitochondrial quadruple complex enzymes in the hippocampus. TRA inhibited Glial fibrillary acidic protein expression and increased pyruvate dehydrogenase levels. TMZ reduced these changes. TRA decreased the level of JNK and increased Beclin-1 and Bax. TMZ decreased phosphorylated Bcl-2 while increasing the unphosphorylated form in tramadol-treated rats. TMZ activated phosphorylated PI3Ks, Akt, and mTOR proteins. TMZ inhibited tramadol-induced neurotoxicity by modulating the PI3K/Akt/mTOR signaling pathways and its downstream inflammatory, apoptosis, and autophagy-related cascades.
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Affiliation(s)
- Houman Kamranian
- Department of Psychiatry, Faculty of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Hadi Asoudeh
- Faculty of Pharmacy, Central Branch of Islamic Azad University, Tehran, Iran
| | | | - Fereshteh Taheri
- Department of Medicine, Islamic Azad University, Qom Branch, Iran
| | - A Wallace Hayes
- University of South Florida College of Public Health, Tampa, FL, USA and Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, USA
| | - Mina Gholami
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ahmad Alavi
- Department of Medicine, Islamic Azad University, Qom Branch, Iran
| | - Majid Motaghinejad
- Chronic Respiratory Disease Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
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6
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Dozic S, Howden EJ, Bell JR, Mellor KM, Delbridge LMD, Weeks KL. Cellular Mechanisms Mediating Exercise-Induced Protection against Cardiotoxic Anthracycline Cancer Therapy. Cells 2023; 12:cells12091312. [PMID: 37174712 PMCID: PMC10177216 DOI: 10.3390/cells12091312] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
Anthracyclines such as doxorubicin are widely used chemotherapy drugs. A common side effect of anthracycline therapy is cardiotoxicity, which can compromise heart function and lead to dilated cardiomyopathy and heart failure. Dexrazoxane and heart failure medications (i.e., beta blockers and drugs targeting the renin-angiotensin system) are prescribed for the primary prevention of cancer therapy-related cardiotoxicity and for the management of cardiac dysfunction and symptoms if they arise during chemotherapy. However, there is a clear need for new therapies to combat the cardiotoxic effects of cancer drugs. Exercise is a cardioprotective stimulus that has recently been shown to improve heart function and prevent functional disability in breast cancer patients undergoing anthracycline chemotherapy. Evidence from preclinical studies supports the use of exercise training to prevent or attenuate the damaging effects of anthracyclines on the cardiovascular system. In this review, we summarise findings from experimental models which provide insight into cellular mechanisms by which exercise may protect the heart from anthracycline-mediated damage, and identify knowledge gaps that require further investigation. Improved understanding of the mechanisms by which exercise protects the heart from anthracyclines may lead to the development of novel therapies to treat cancer therapy-related cardiotoxicity.
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Affiliation(s)
- Sanela Dozic
- Central Clinical School, Monash University, Melbourne, VIC 3004, Australia
| | - Erin J Howden
- Central Clinical School, Monash University, Melbourne, VIC 3004, Australia
- Baker Heart and Diabetes Institute, Melbourne, VIC 3004, Australia
- Department of Cardiometabolic Health, The University of Melbourne, Parkville, VIC 3010, Australia
| | - James R Bell
- Department of Anatomy & Physiology, The University of Melbourne, Parkville, VIC 3010, Australia
- Department of Microbiology, Anatomy, Physiology & Pharmacology, La Trobe University, Bundoora, VIC 3086, Australia
| | - Kimberley M Mellor
- Department of Physiology, University of Auckland, Auckland 1023, New Zealand
| | - Lea M D Delbridge
- Department of Anatomy & Physiology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Kate L Weeks
- Central Clinical School, Monash University, Melbourne, VIC 3004, Australia
- Department of Cardiometabolic Health, The University of Melbourne, Parkville, VIC 3010, Australia
- Department of Anatomy & Physiology, The University of Melbourne, Parkville, VIC 3010, Australia
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7
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El-Shoura EAM, Salem MA, Ahmed YH, Ahmed LK, Zaafar D. Combined β-sitosterol and trimetazidine mitigate potassium dichromate-induced cardiotoxicity in rats through the interplay between NF-κB/AMPK/mTOR/TLR4 and HO-1/NADPH signaling pathways. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:67771-67787. [PMID: 37115449 DOI: 10.1007/s11356-023-27021-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/10/2023] [Indexed: 05/25/2023]
Abstract
Hexavalent chromium salt, like potassium dichromate (PD), is chromium's most precarious valence state in industrial wastes. Recently, there has been increasing interest in β-sitosterol (BSS), a bioactive phytosterol, as a dietary supplement. BSS is recommended in treating cardiovascular disorders due to its antioxidant effect. Trimetazidine (TMZ) was used traditionally for cardioprotection. Through the administration of BSS and TMZ, the cardiotoxic effects of PD were to be countered in this study, in addition to examining the precise mechanism of PD-induced cardiotoxicity. Thirty male albino rats were divided into five groups; the control group: administered normal saline daily (3 mL/kg); the PD group: administered normal saline daily (3 mL/kg); BSS group: administered BSS daily (20 mg/kg); TMZ group: administered TMZ daily (15 mg/kg); and the BSS + TMZ group: administered both BSS (20 mg/kg) and TMZ (15 mg/kg) daily. All experimental groups, except the control, received on the 19th day a single dose of PD (30 mg/kg/day, S.C.). Normal saline, BSS, and TMZ were received daily for 21 consecutive days p.o. The exposure to PD promoted different oxidative stresses, pro-inflammatory, and cardiotoxicity biomarkers. BSS or TMZ succeeded solely in reducing these deleterious effects; however, their combination notably returned measured biomarkers close to normal values. The histopathological investigations have supported the biochemical findings. The combination of BSS and TMZ protects against PD cardiotoxicity in rats by reducing oxidative stress and apoptotic and inflammatory biomarkers. It may be promising for alleviating and protecting against PD-induced cardiotoxicity in people at an early stage; however, these findings need further clinical studies to be confirmed. HIGHLIGHTS: • Potassium dichromate induces cardiotoxicity in rats through the upregulation of oxidative stress, proinflammatory, and apoptotic pathways biomarkers. • β-Sitosterol possesses a possible cardioprotective effect by modulating several signaling pathways. • Trimetazidine, the antianginal agent, has a potential cardioprotective impact on PD-intoxicated rat model. • The combination of β-Sitosterol and trimetazidine was the best in modulating different pathways involved in PD cardiotoxicity in rats via the interplay between NF-κB/AMPK/mTOR/TLR4 and HO-1/NADPH signaling pathways.
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Affiliation(s)
- Ehab A M El-Shoura
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt.
| | - Maha A Salem
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Modern University for Technology, and Information, Cairo, Egypt
| | - Yasmine H Ahmed
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Lamiaa Khalaf Ahmed
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, 71524, Egypt
| | - Dalia Zaafar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Modern University for Technology, and Information, Cairo, Egypt
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8
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Li T, Wang L, Wu L, Xie Y, Chang M, Wang D, Yi L, Zhu X, Mi M. Integrated Metabolomics and Network Pharmacology Investigation of Cardioprotective Effects of Myricetin after 1-Week High-Intensity Exercise. Nutrients 2023; 15:nu15061336. [PMID: 36986067 PMCID: PMC10054643 DOI: 10.3390/nu15061336] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023] Open
Abstract
Cardiovascular adverse effects caused by high-intensity exercise (HIE) have become a public health problem of widespread concern. The therapeutic effect and metabolic regulation mechanism of myricetin, a phytochemical with potential therapeutic effects, have rarely been studied. In this study, we established mice models of different doses of myricetin intervention with 1 week of HIE after intervention. Cardiac function tests, serology, and pathological examinations were used to evaluate the protective effect of myricetin on the myocardium. The possible therapeutic targets of myricetin were obtained using an integrated analysis of metabolomics and network pharmacology and verified using molecular docking and RT-qPCR experiments. Different concentrations of myricetin improved cardiac function, significantly reduced the levels of myocardial injury markers, alleviated myocardial ultrastructural damage, reduced the area of ischemia/hypoxia, and increased the content of CX43. We obtained the potential targets and regulated metabolic network of myricetin by combined network pharmacology and metabolomics analysis and validated them by molecular docking and RT-PCR. In conclusion, our findings suggest that myricetin exerts anti-cardiac injury effects of HIE through the downregulation of PTGS2 and MAOB and the upregulation of MAP2K1 and EGFR while regulating the complicated myocardial metabolic network.
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Affiliation(s)
- Tianyou Li
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing 400038, China
| | - Le Wang
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing 400038, China
| | - Luting Wu
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing 400038, China
| | - Yingquan Xie
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing 400038, China
| | - Mengyun Chang
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing 400038, China
| | - Dawei Wang
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing 400038, China
| | - Long Yi
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing 400038, China
| | - Xiaohui Zhu
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing 400038, China
- Chongqing Medical Nutrition Research Center, Chongqing 400038, China
- Correspondence: (X.Z.); (M.M.)
| | - Mantian Mi
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Institute of Military Preventive Medicine, Army Medical University, Chongqing 400038, China
- Correspondence: (X.Z.); (M.M.)
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9
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Glutathione system enhancement for cardiac protection: pharmacological options against oxidative stress and ferroptosis. Cell Death Dis 2023; 14:131. [PMID: 36792890 PMCID: PMC9932120 DOI: 10.1038/s41419-023-05645-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/17/2023]
Abstract
The glutathione (GSH) system is considered to be one of the most powerful endogenous antioxidant systems in the cardiovascular system due to its key contribution to detoxifying xenobiotics and scavenging overreactive oxygen species (ROS). Numerous investigations have suggested that disruption of the GSH system is a critical element in the pathogenesis of myocardial injury. Meanwhile, a newly proposed type of cell death, ferroptosis, has been demonstrated to be closely related to the GSH system, which affects the process and outcome of myocardial injury. Moreover, in facing various pathological challenges, the mammalian heart, which possesses high levels of mitochondria and weak antioxidant capacity, is susceptible to oxidant production and oxidative damage. Therefore, targeted enhancement of the GSH system along with prevention of ferroptosis in the myocardium is a promising therapeutic strategy. In this review, we first systematically describe the physiological functions and anabolism of the GSH system, as well as its effects on cardiac injury. Then, we discuss the relationship between the GSH system and ferroptosis in myocardial injury. Moreover, a comprehensive summary of the activation strategies of the GSH system is presented, where we mainly identify several promising herbal monomers, which may provide valuable guidelines for the exploration of new therapeutic approaches.
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10
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Zhang ZH, Yu Q, Zhang G, Peng HY, Sun R, Xu YJ, Ge JF. Methylated Chromenoquinoline as a Novel Nucleus Fluorescent Probe for Nucleic Acid Imaging. J Fluoresc 2022; 33:923-932. [PMID: 36527543 DOI: 10.1007/s10895-022-03129-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Two chromenoquinoline-based fluorescent probes 1a-b have been synthesized and investigated. Photofading behaviors of compounds 1a-b showed that at least 89% absorption remained after 6 h irradiating, meanwhile, many of ions and amino acids had negligible impacts on their fluorescence intensity, which meant they had excellent photostability and selectivity. Probes 1a-b exhibited strong absorption and emission in organic solvents with large fluorescence quantum yields, even in water probe 1a still had a relatively large fluorescence quantum yield (20%). Combined with DFT calculation, the influence of alkylation on optical properties of 1b was elucidated. In addition, the fluorescence intensity of probe 1b with red emission enhanced by 5.4-fold and 5.3-fold after DNA and RNA added, and the fluorescence quantum yield increased from 3% to 17% and 14%, respectively, but the neutral molecule 1a had no response to nucleic acid. Furthermore, confocal microscopy imaging of probes 1a-b showed that 1a targeted lipid droplets while the methylated probe 1b to nucleus in living HeLa cells. The results indicated that the subcellular targeting zone could be changed by alkylation of nitrogen atom on chromenoquinoline-based conveniently, which provided a new idea for designing and synthesizing new subcellular labeled probes.
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Affiliation(s)
- Zhi-Hao Zhang
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China
| | - Qing Yu
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China
| | - Gang Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 215123, Suzhou, China
| | - Hai-Yan Peng
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China
| | - Ru Sun
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China
| | - Yu-Jie Xu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 215123, Suzhou, China
| | - Jian-Feng Ge
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China.
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11
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Ding H, Zhang Y, Zha Y, Zhou S, Cao C, Zhu H, Xu F, Zhang X, Wang C. Protein from Hylocereus polyrhizus protects MRC-5 cells against hydrogen peroxide (H 2O 2)-induced damage. Food Sci Biotechnol 2022; 31:1741-1751. [PMID: 36312996 PMCID: PMC9596649 DOI: 10.1007/s10068-022-01163-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/16/2022] [Accepted: 08/22/2022] [Indexed: 11/30/2022] Open
Abstract
The cytoprotective and potential molecular mechanisms of Hylocereus polyrhizus protein (RFPP) were investigated on the hydrogen peroxide (H2O2)-triggered damage in normal human embryonic lung (MRC-5) cells. An MTT assay was conducted to assess the MRC-5 cell viability after exposure to H2O2 or RFPP. Cell cycle distribution and apoptosis were explored via flow cytometry. The contents of related proteins were assessed via western blot. MRC-5 cells exhibited markedly decreased cellular viability after treatment with H2O2; however, treatment with RFPP suppressed this decrease. Additionally, RFPP interference dampened H2O2-triggered intracellular apoptosis levels and increased H2O2-triggered intracellular S phase. In these processes, the contents of phosphorylated (p)-AKT along with p-mTOR proteins were downregulated in 120 µM H2O2-treated cells compared with vehicle-treated cells. Nevertheless, in MRC-5 cells inoculated with RFPP, the levels expression of these proteins were reversed. To conclude, RFPP protected MRC-5 cells from H2O2-triggered damage via activation of the PI3K/AKT/mTOR cascade.
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Affiliation(s)
- Haomiao Ding
- College of Biological and Environmental Sciences, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo, 315100 China
| | - Yuzhe Zhang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo, 315100 China
| | - Yue Zha
- College of Biological and Environmental Sciences, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo, 315100 China
| | - Sijia Zhou
- College of Biological and Environmental Sciences, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo, 315100 China
| | - Chaoqing Cao
- College of Biological and Environmental Sciences, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo, 315100 China
| | - Huajian Zhu
- College of Biological and Environmental Sciences, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo, 315100 China
| | - Feng Xu
- The Affiliated Hospital of Medical School of Ningbo University, 247 Renmin Road, Ningbo, 315099 China
| | - Xiuqiang Zhang
- The Affiliated Hospital of Medical School of Ningbo University, 247 Renmin Road, Ningbo, 315099 China
| | - Caisheng Wang
- College of Biological and Environmental Sciences, Zhejiang Wanli University, 8 Qianhu South Road, Ningbo, 315100 China
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12
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Shi M, Dong Z, Zhao K, He X, Sun Y, Ren J, Ge W. Novel insights into exhaustive exercise-induced myocardial injury: Focusing on mitochondrial quality control. Front Cardiovasc Med 2022; 9:1015639. [PMID: 36312267 PMCID: PMC9613966 DOI: 10.3389/fcvm.2022.1015639] [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: 08/09/2022] [Accepted: 09/16/2022] [Indexed: 11/13/2022] Open
Abstract
Regular moderate-intensity exercise elicits benefit cardiovascular health outcomes. However, exhaustive exercise (EE) triggers arrhythmia, heart failure, and sudden cardiac death. Therefore, a better understanding of unfavorable heart sequelae of EE is important. Various mechanisms have been postulated for EE-induced cardiac injury, among which mitochondrial dysfunction is considered the cardinal machinery for pathogenesis of various diseases. Mitochondrial quality control (MQC) is critical for clearance of long-lived or damaged mitochondria, regulation of energy metabolism and cell apoptosis, maintenance of cardiac homeostasis and alleviation of EE-induced injury. In this review, we will focus on MQC mechanisms and propose mitochondrial pathophysiological targets for the management of EE-induced myocardial injury. A thorough understanding of how MQC system functions in the maintenance of mitochondrial homeostasis will provide a feasible rationale for developing potential therapeutic interventions for EE-induced injury.
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Affiliation(s)
- Mingyue Shi
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhao Dong
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Kai Zhao
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaole He
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yang Sun
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China,Jun Ren
| | - Wei Ge
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China,*Correspondence: Wei Ge
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13
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Wu Q, Tao J, Wu L, Wei W, Zhang X, Zhang Z, Zhang X, Jiang X, Chen N. Corn peptide enhances exercise performance and prevents myocardial damage of mice caused by overtraining through activating autophagy. J Funct Foods 2022. [DOI: 10.1016/j.jff.2022.105227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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14
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Ozturk A, Topcu A, Deniz E, Duman Ozturk S, Arpa M, Kutlu Yilmaz E. The protective effects of trimetazidine against ovary ischemia-reperfusion injury via the TLR4/Nf-kB signal pathway. J Biochem Mol Toxicol 2022; 36:e23114. [PMID: 35633067 DOI: 10.1002/jbt.23114] [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: 01/25/2022] [Revised: 04/12/2022] [Accepted: 05/18/2022] [Indexed: 11/12/2022]
Abstract
Late diagnosis and treatment of ovarian ischemia can lead to worsening of ischemia, irreversible damage to ovarian functions and infertility. In this process, there is no approved medical treatment that can reduce the negative effects of ischemia and contribute positively to ovarian functions during reperfusion after detorsion. Rats were randomly assigned into one of six groups of eight animals each. The groups were designed as follows: The control group, The ischemia(I) group, The Ischemia + Trimetazidine (I + TMZ) (20 mg/kg) group, and The ischemia-reperfusion group (I/R). The Ischemia-Reperfusion + Trimetazidine (I/R + TMZ) (20 mg/kg) group, and The Sham + Trimetazidine (Sham + TMZ) (20 mg/kg) group. In this study performed thiobarbituric acid reactive substances (TBARS), total thiol (-SH), interleukin 1 beta (IL-1β), interleukin 6 (IL-6), toll-like receptor 4 (TLR4), and nuclear factor-kappa B(NF-κβ). Increased oxidative stress and inflammation were as a result of ovarian I and I/R application. Trimetazidine (TMZ), was sufficient to reduce the oxidative stress and inflammation. TLR4 and NF-κβ, which were upregulated by oxidative stress and inflammation, were regressed by TMZ. TMZ should be considered as a potential therapeutic agent in addition to surgery in the clinical treatment of ovarian torsion.
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Affiliation(s)
- Aykut Ozturk
- Department of Pharmacology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Atilla Topcu
- Department of Pharmacology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Esra Deniz
- Department of Pharmacology, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Seda Duman Ozturk
- Department of Pathology, Recep Tayyip Erdogan University Education and Research Hospital, Rize, Turkey
| | - Medeni Arpa
- Department of Medical Biochemistry, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
| | - Eda Kutlu Yilmaz
- Department of Medical Biochemistry, Faculty of Medicine, Recep Tayyip Erdogan University, Rize, Turkey
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15
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Engin S, Barut EN, Yaşar YK, Soysal AÇ, Arıcı T, Kerimoğlu G, Kadıoğlu M, Sezen SF. Trimetazidine attenuates cyclophosphamide-induced cystitis by inhibiting TLR4-mediated NFκB signaling in mice. Life Sci 2022; 301:120590. [PMID: 35504331 DOI: 10.1016/j.lfs.2022.120590] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 04/19/2022] [Accepted: 04/25/2022] [Indexed: 11/26/2022]
Abstract
AIM Cyclophosphamide (CP)-induced cystitis is a challenging clinical problem involving inflammation and dysfunction of bladder. Trimetazidine (TMZ) is an anti-anginal drug with anti-oxidant and anti-inflammatory properties. We aimed to investigate the protective effects of TMZ in CP-induced cystitis via inhibiting TLR4/NFκB signaling. MAIN METHODS Balb/c mice were administrated TMZ (10 or 20 mg/kg/day) intraperitoneally (i.p.) for 5 consecutive days before CP. On day 6, cystitis was induced by a single dose of CP (300 mg/kg, i.p.). Mesna (2-mercaptoethane sulfonate sodium; 30 mg/kg, i.p.) was administered 20 min before and at 4 and 8 h after the CP injection. After 24 h of cystitis induction, the bladders were removed for histopathological evaluation, contractility studies, biochemical analysis and western blotting. MTT assay was performed in a cancer cell line (MDA-MB-231) to evaluate the effect of TMZ on the cytotoxicity of CP. KEY FINDINGS CP-induced severe cystitis was confirmed by histological disturbances and the decrease in carbachol-evoked contractions of detrusor strips, which was partially improved by TMZ (20 mg/kg/day). SOD activity and GSH content were decreased whereas TNF-α and IL-1β levels were increased in the bladders of CP-treated mice, which were restored by TMZ or mesna. TMZ reduced the CP-induced increase in the protein expressions of caspase-3, TLR4 and phosphorylated-NFκB in bladder tissues. TMZ alone decreased the cell viability and TMZ also enhanced the cytotoxicity of CP. SIGNIFICANCE Our study provides the first preclinical evidence that TMZ attenuates CP-induced urotoxicity by enhancing anti-oxidant capacity and suppressing inflammation possibly via downregulating TLR4-mediated NFκB signaling while augmenting the cytotoxicity of CP.
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Affiliation(s)
- Seçkin Engin
- Department of Pharmacology, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkiye.
| | - Elif Nur Barut
- Department of Pharmacology, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkiye
| | - Yeşim Kaya Yaşar
- Department of Pharmacology, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkiye; Drug and Pharmaceutical Technology Application and Research Center, Karadeniz Technical University, Trabzon, Turkiye
| | - Aysun Çelik Soysal
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Bülent Ecevit University, Zonguldak, Turkiye
| | - Tuğba Arıcı
- Başaksehir Cam and Sakura City Hospital, İstanbul, Turkiye
| | - Gökçen Kerimoğlu
- Department of Histology and Embryology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkiye
| | - Mine Kadıoğlu
- Department of Medical Pharmacology, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkiye
| | - Sena F Sezen
- Department of Pharmacology, Faculty of Pharmacy, Karadeniz Technical University, Trabzon, Turkiye; Drug and Pharmaceutical Technology Application and Research Center, Karadeniz Technical University, Trabzon, Turkiye
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16
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Al-Kuraishy HM, Al-Gareeb AI, Welson NN, Batiha GES. Trimetazidine and COVID-19-induced acute cardiac injury: a missed key. Int J Clin Pharm 2022; 44:832-833. [PMID: 35449348 PMCID: PMC9022894 DOI: 10.1007/s11096-022-01408-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/25/2022] [Accepted: 03/27/2022] [Indexed: 02/06/2023]
Affiliation(s)
- Hayder M Al-Kuraishy
- Professor in department of clinical pharmacology and medicine, college of medicine, ALmustansiriyia University, M.B.Ch.B, FRCP, Baghdad, Iraq
| | - Ali I Al-Gareeb
- Professor in department of clinical pharmacology and medicine, college of medicine, ALmustansiriyia University, M.B.Ch.B, FRCP, Baghdad, Iraq
| | - Nermeen N Welson
- Department of forensic medicine and clinical toxicology, faculty of medicine, Beni-Suef University, Beni Suef, Egypt.
| | - Gaber El-Saber Batiha
- Department of pharmacology and therapeutics, faculty of veterinary medicine, Damanhour University, 22511, Damanhour, AlBeheira, Egypt
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17
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Zhang W, Dun Y, You B, Qiu L, Ripley-Gonzalez JW, Cheng J, Fu S, Li C, Liu S. Trimetazidine and exercise offer analogous improvements to the skeletal muscle insulin resistance of mice through Nrf2 signaling. BMJ Open Diabetes Res Care 2022; 10:10/2/e002699. [PMID: 35365489 PMCID: PMC8977813 DOI: 10.1136/bmjdrc-2021-002699] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 03/13/2022] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Insulin resistance (IR) plays a key role in the pathogenesis and clinical course of patients with multiple metabolic diseases and diabetes. This study aimed to explore the effect of trimetazidine (TMZ) on skeletal muscle IR in mice fed a high-fat diet (HFD) and explore the possible underlying mechanism. RESEARCH DESIGN AND METHODS In vivo, a HFD mouse IR model was adopted and TMZ and exercise were used to intervene. Postintervention the following were determined: blood levels of glucose and insulin, homeostasis model assessment of IR index, expression of skeletal muscle insulin signaling-related proteins phosphorylated insulin receptor substrate 1 (p-IRS1/IRS1) and phosphorylated protein kinase B (p-AKT/AKT), nuclear factor erythroid 2 related factor 2 (Nrf2) signaling pathway, and oxidative stress. In vitro, a palmitate-treated C2C12 myotube IR model was constructed. Cellular glucose uptake, p-IRS1/IRS1, and p-AKT/AKT were determined, and reactive oxygen species (ROS) production was analyzed based on treatments with specific small interfering RNA of Nrf2 with or without TMZ. Western blot was used to obtain the protein expression level and ROS production by functional analysis kits. RESULTS In vivo, TMZ and exercise decreased the blood glucose and insulin levels and homeostasis model assessment of IR index, increased skeletal muscle insulin signaling-related protein ratios of p-IRS1/IRS1 and p-AKT/AKT, and both interventions activated Nrf2 signaling and reduced oxidative stress production in HFD mice. In vitro, TMZ reduced the oxidative stress reaction, increased the ratios of p-AKT/AKT and p-IRS1/IRS1, and attenuated the insulin stimulation of PA-induced glucose uptake. However, in the absence of Nrf2, TMZ failed to resist the effects of IR. CONCLUSIONS This study showed that TMZ, like exercise, brought about marked improvements to HFD-induced skeletal muscle IR through TMZ, a common pathway with exercise in the form of Nrf2, regulating oxidative stress. We provide new evidence to support the use of TMZ for diabetes treatment.
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Affiliation(s)
- Wenliang Zhang
- Division of Cardiac Rehabilitation, Department of Physical Medicine & Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yaoshan Dun
- Division of Cardiac Rehabilitation, Department of Physical Medicine & Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, China
- Division of Preventive Cardiology, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Baiyang You
- Division of Cardiac Rehabilitation, Department of Physical Medicine & Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ling Qiu
- Division of Cardiac Rehabilitation, Department of Physical Medicine & Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jeffrey W Ripley-Gonzalez
- Division of Cardiac Rehabilitation, Department of Physical Medicine & Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jing Cheng
- Division of Cardiac Rehabilitation, Department of Cardiovascular Medicine, Shenzhen Yantian People's Hospital, Shenzhen, Guangdong, China
| | - Siqian Fu
- Division of Cardiac Rehabilitation, Department of Physical Medicine & Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Cui Li
- Division of Cardiac Rehabilitation, Department of Physical Medicine & Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Suixin Liu
- Division of Cardiac Rehabilitation, Department of Physical Medicine & Rehabilitation, Xiangya Hospital of Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, China
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18
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Wan J, Yu X, Niu JQ, Qiu L, Wang F, Chen XL. Inhibition of Bruton's Tyrosine Kinase Protects Against Burn Sepsis-Induced Intestinal Injury. Front Med (Lausanne) 2022; 9:809289. [PMID: 35280898 PMCID: PMC8907476 DOI: 10.3389/fmed.2022.809289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/31/2022] [Indexed: 11/18/2022] Open
Abstract
This study aimed to investigate the role and molecular mechanisms of Bruton's tyrosine kinase (BTK), a member of the Tec family in burn sepsis-induced intestinal injury. Eighty C57BL/6 mice were randomly divided into four groups: the sham group, the burn group, the burn + sepsis group, and the burn + sepsis + LFM-A13 (a selective BTK inhibitor) group. The dynamic expression profiles of BTK and p-BTK in the intestine were measured by Western blot analysis. Intestinal histopathological changes and cellular apoptosis were determined. Inflammatory cytokines in serum and intestinal tissue were examined through enzyme-linked immunosorbent assay. Myeloperoxidase (MPO) activity was determined via a colorimetric assay. Intestinal p-BTK expression in the burn+sepsis group was significantly increased compared with that in the sham and burn groups. In the burn + sepsis group, the p-BTK expression level increased over time, peaked at 12, and then decreased at 24 h. LFM-A13 administration significantly inhibited p-BTK expression in the intestine. In contrast to the sham and burn groups, the burn + sepsis group exhibited obvious histopathological changes, which gradually aggravated over time. LFM-A13 also reduced the histopathological changes and cellular apoptosis in intestinal tissues, inhibited the inflammatory cytokines IL-4, IL-6, and TNF-α in serum and intestinal tissues, and significantly inhibited the increase in intestinal MPO activity induced by burn sepsis. BTK activation is one important aspect of the signaling event that may mediate the release of the anti-inflammatory cytokine IL-4 and the pro-inflammatory cytokines IL-6 and TNF-α; oxidative stress; and intestinal cell apoptosis. Thus, it contributes to burn sepsis-induced intestinal injury.
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19
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Trimetazidine affects pyroptosis by targeting GSDMD in myocardial ischemia/reperfusion injury. Inflamm Res 2022; 71:227-241. [PMID: 34993560 DOI: 10.1007/s00011-021-01530-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 09/10/2021] [Accepted: 11/30/2021] [Indexed: 12/15/2022] Open
Abstract
OBJECTIVE Trimetazidine (TMZ) exerts a strong inhibitory effect on ischemia/reperfusion (I/R) injury. Inflammation plays a key role in I/R injury. We hypothesized that TMZ may protect cardiomyocytes from I/R injury by inhibiting inflammation. METHODS The left anterior descending coronary artery was ligated for 30 min followed by 6 h of reperfusion to establish a model of I/R injury. H9c2 cardiomyocytes were subjected to 2 h of hypoxia and 3 h of normoxic conditions to establish a model of hypoxia/reoxygenation (H/R) injury. We monitored the change in pyroptosis by performing Western blot analysis, microscopy and ELISA. RESULTS I/R and H/R treatment stimulated gasdermin D-N domain (GSDMD-N) expression in cardiomyocytes (sham onefold vs. I/R 2.5-fold; control onefold vs. H/R 2.0-fold). Moreover, TMZ increased the viability of H9c2 cardiomyocytes subjected to H/R treatment (H/R 65.0% vs. H/R + TMZ 85.3%) and reduced the infarct size in vivo (I/R 47.0% vs. I/R + TMZ 28.3%). H/R and I/R treatment increased the levels of TLR4, MyD88, phospho-NF-κB p65 and the NLRP3 inflammasome; however, TMZ reduced the expression of these proteins. Additionally, TMZ inhibited noncanonical inflammasome signaling induced by I/R injury. CONCLUSIONS In summary, TMZ alleviated pyroptosis induced by myocardial I/R injury through the TLR4/MyD88/NF-κB/NLRP3 inflammasome pathway. Therefore, TMZ represents an alternative treatment for myocardial I/R injury.
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20
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Wan DF, Hao Z, Huang Y, Pan SS. Late Exercise Preconditioning Regulates BNP Increasing to Assist the Cardioprotection via Up-Regulation of NPR-A and Down-Regulation of NPR-C in Rat Myocardium. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-021-10323-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Zheng M, Zhan C, Bai N, Bai J, Nie C, Chi J, Ding X, Liu J, Yang W. Combined Usage of Trimetazidine With 3-Bromopyruvate May Lead to Cardiotoxicity by Activating Oxidative Stress and Apoptosis in Rats. J Cardiovasc Pharmacol 2021; 78:819-825. [PMID: 34524259 DOI: 10.1097/fjc.0000000000001136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 08/22/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT The energy used by the heart is generated mainly by the metabolism of fatty acids and glucose. Trimetazidine (TMZ) inhibits fatty acid metabolism and is used for the treatment of heart diseases such as heart failure. 3-Bromopyruvate (3-BrPA) can suppress glucose metabolism, and it is considered a promising candidate agent for tumor therapy. Because TMZ and 3-BrPA can separately inhibit the 2 main cardiac energy sources, it is necessary to investigate the effects of 3-BrPA combined with TMZ on the heart. Forty male Wistar rats were randomly divided into 4 groups: a control group, a TMZ group, a 3-BrPA group, and a 3-BrPA + TMZ group. Weight was recorded every day, and echocardiography was performed 14 days later. Heart function, the levels of adenosine triphosphate, oxidative stress-related factors (ROS, glutathione, oxidized glutathione, malondialdehyde, superoxide dismutase and total antioxidant capacity), and apoptosis in heart tissues were assessed to evaluate the effects of 3-BrPA and TMZ on the heart. In our study, no obvious changes occurred in the 3-BrPA group or the TMZ group compared with the control group. The combination of 3-BrPA and TMZ worsened heart function, decreased adenosine triphosphate levels, and increased oxidative stress and myocardial apoptosis. In conclusion, 3-BrPA and TMZ are not recommended for concurrent use.
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Affiliation(s)
- Min Zheng
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China; and
| | - Chengchuang Zhan
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Nan Bai
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Juncai Bai
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China; and
| | - Chaoqun Nie
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China; and
| | - Jing Chi
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xue Ding
- Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiaren Liu
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China; and
| | - Wei Yang
- Department of Cardiology, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China; and
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22
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Yang M, Xiao Z, Chen Z, Ru Y, Wang J, Jiang J, Wang X, Wang T. S100A1 is Involved in Myocardial Injury Induced by Exhaustive Exercise. Int J Sports Med 2021; 43:444-454. [PMID: 34688220 DOI: 10.1055/a-1642-8352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Many studies have confirmed that exhaustive exercise has adverse effects on the heart by generating reactive oxygen species (ROS). S100A1 calcium-binding protein A1 (S100A1) is a regulator of myocardial contractility and a protector against myocardial injury. However, few studies have investigated the role of S100A1 in the regulation of myocardial injury induced by exhaustive exercise. In the present study, we suggested that exhaustive exercise led to increased ROS, downregulation of S100a1, and myocardial injury. Downregulation of S100a1 promoted exhaustive exercise-induced myocardial injury and overexpression of S100A1 reversed oxidative stress-induced cardiomyocyte injury, indicating S100A1 is a protective factor against myocardial injury caused by exhaustive exercise. We also found that downregulation of S100A1 promoted damage to critical proteins of the mitochondria by inhibiting the expression of Ant1, Pgc1a, and Tfam under exhaustive exercise. Our study indicated S100A1 as a potential prognostic biomarker or therapeutic target to improve the myocardial damage induced by exhaustive exercise and provided new insights into the molecular mechanisms underlying the myocardial injury effect of exhaustive exercise.
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Affiliation(s)
- Miaomiao Yang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.,Tianjin Key Lab of Exercise Physiology and Sports Medicine, Tianjin University of Sport, Tianjin 301617, China
| | - Zhigang Xiao
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.,School of Materials Science and Engineering,Tianjin University of Technology, Tianjin 300384, China
| | - Zhaoli Chen
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Yongxin Ru
- Institute of Hematology and Blood Diseases Hospital Peaking Union Medical College, Tianjin 300020, China
| | - Jun Wang
- Air Force Medical Center, Medical Evaluation Department, Beijing 100042, China
| | - Jianhua Jiang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Xinxing Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China
| | - Tianhui Wang
- Tianjin Institute of Environmental and Operational Medicine, Tianjin 300050, China.,Tianjin Key Lab of Exercise Physiology and Sports Medicine, Tianjin University of Sport, Tianjin 301617, China
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Antsiferov OV, Cherevatenko RF, Korokin MV, Gureev VV, Gureeva AV, Zatolokina MA, Avdeyeva EV, Zhilinkova LA, Kolesnik IM. A new EPOR/CD131 heteroreceptor agonist EP-11-1: a neuroprotective effect in experimental traumatic brain injury. RESEARCH RESULTS IN PHARMACOLOGY 2021. [DOI: 10.3897/rrpharmacology.7.75301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Introduction: EP-11-1 (UEHLERALNSS) is a short-chain erythropoietin derivative without have erythropoietic activity. It was created by modifying a peptide mimicking the spatial structure of the erythropoietin a-helix B pHBSP. One of the promising directions of its administration is the correction of morphofunctional disorders that occur in traumatic brain injury (TBI).
Materials and methods: The study was performed in 160 male Wistar rats, weighing 180–200 g.TBI was simulated using the drop-weight method. To assess the emerging morphofunctional disorders and a degree of their correction, we used the severity of neurological deficit, indicators of locomotor activity and exploration, a marker of brain injury S100B and morphological examination.
Results and discussion: The combined administration of a new EPOR/CD131 heteroreceptor agonist EP-11-1 with citicoline and trimetazidine led to a more pronounced correction of the neurological deficit when compared not only to the group of the ”untreated” animals, but also to the groups of animals to which these drugs had been administered as monotherapy (p < 0.05). The same tendency was also observed in the study of locomotor activity and exploration. A biochemical study showed that the administration of all three combinations led to a statistically significant (p < 0.05) decrease in the S-100B concentration compared not only to the group of “untreated” animals, but also to the groups of animals to which these drugs had been administered as a monotherapy.
Conclusion: The results of the conducted experiments prove the most pronounced positive dynamics in the combined administration of the new EPOR/CD131 heteroreceptor agonist EP-11-1with citicoline and trimetazidine.
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Dai ZL, Song YF, Tian Y, Li Y, Lin M, Lin J, Wang Q, Wang P, Gao WL. Trimetazidine offers myocardial protection in elderly coronary artery disease patients undergoing non-cardiac surgery: a randomized, double-blind, placebo-controlled trial. BMC Cardiovasc Disord 2021; 21:473. [PMID: 34598676 PMCID: PMC8485575 DOI: 10.1186/s12872-021-02287-w] [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: 05/21/2021] [Accepted: 09/24/2021] [Indexed: 11/21/2022] Open
Abstract
Background Trimetazidine (TMZ) pretreatment protects cardiomyocytes during cardiac surgery. TMZ may protect elderly patients with ischaemic heart disease (IHD) undergoing non-cardiac surgery. Methods This was a randomized, double-blind, placebo-controlled trial (registration #ChiCTR1900025018) of patients with IHD scheduled to undergo non-cardiac surgery at Shenzhen People’s Hospital (Shenzhen, Guangdong Province, China) between June 2014 and September 2015, randomized to 60 mg TMZ or placebo 12 h before surgery. The primary endpoint was the occurrence of in-hospital cardiovascular events. The secondary endpoints were myocardial ischaemia on five-lead electrocardiogram (cECG), cardiac troponin I (cTnI) elevation, cardiac death, acute coronary events, heart failure, and arrhythmia requiring treatments. Results Compared with the placebo group, the TMZ group showed a lower occurrence of in-hospital cardiovascular events (primary endpoint, 20.0% vs. 37.5%, P = 0.02), myocardial ischaemia (15.0% vs. 32.5%, P < 0.01), cTnI elevation (2.5% vs. 10%, P < 0.01), acute coronary events (10.0% vs. 20.0%, P < 0.05), heart failure (0% vs. 2.5%, P < 0.05), and arrhythmia requiring treatment (17.5% vs. 35.0%, P < 0.05). There was no acute myocardial infarction during the 30-day postoperative period. Conclusions In elderly patients with IHD undergoing non-cardiac surgery, TMZ pretreatment was associated with myocardial protective effects. Trial registration The trial was prospectively registered at http://www.chictr.org.cn/showproj.aspx?proj=41909 with registration number [ChiCTR1900025018] (7/8/2019).
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Affiliation(s)
- Zhong-Liang Dai
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China. .,Shenzhen Engineering Research Center of Anesthesiology, No. 1017 Dongmen North Road, Shenzhen, 518020, Guangdong, China.
| | - Yi-Feng Song
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.,Shenzhen Engineering Research Center of Anesthesiology, No. 1017 Dongmen North Road, Shenzhen, 518020, Guangdong, China
| | - Ya Tian
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.,Shenzhen Engineering Research Center of Anesthesiology, No. 1017 Dongmen North Road, Shenzhen, 518020, Guangdong, China
| | - Yin Li
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.,Shenzhen Engineering Research Center of Anesthesiology, No. 1017 Dongmen North Road, Shenzhen, 518020, Guangdong, China
| | - Miao Lin
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.,Shenzhen Engineering Research Center of Anesthesiology, No. 1017 Dongmen North Road, Shenzhen, 518020, Guangdong, China
| | - Juan Lin
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.,Shenzhen Engineering Research Center of Anesthesiology, No. 1017 Dongmen North Road, Shenzhen, 518020, Guangdong, China
| | - Qi Wang
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.,Shenzhen Engineering Research Center of Anesthesiology, No. 1017 Dongmen North Road, Shenzhen, 518020, Guangdong, China
| | - Ping Wang
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China.,Shenzhen Engineering Research Center of Anesthesiology, No. 1017 Dongmen North Road, Shenzhen, 518020, Guangdong, China
| | - Wen-Li Gao
- Department of Anesthesiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, Guangdong, China. .,Shenzhen Engineering Research Center of Anesthesiology, No. 1017 Dongmen North Road, Shenzhen, 518020, Guangdong, China.
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Hu X, Mu L, Zhu L, Chang X, Nie L, Wang L, Li G. Lycium barbarum polysaccharides attenuate cardiovascular oxidative stress injury by enhancing the Keap1/Nrf2 signaling pathway in exhaustive exercise rats. Mol Med Rep 2021; 24:643. [PMID: 34278476 DOI: 10.3892/mmr.2021.12282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 03/12/2021] [Indexed: 11/05/2022] Open
Abstract
Moderate exercise is beneficial to physical and mental health. When the amount of exercise and exercise intensity exceeds a certain limit and reaches the state of exhaustion, oxidative stress levels in the body increase, which can lead to oxidative stress‑associated damage. Lycium barbarum polysaccharide (LBP) is one of the primary active ingredients extracted from wolfberry. Following exhausting exercise in rats, LBP supplements decrease damage to the myocardium and blood vessels, indicating that LBP exerts a protective effect on the cardiovascular system. The Kelch‑like ECH‑associated protein 1 (Keap1)/NF‑E2‑related factor 2 (Nrf2) anti‑oxidative stress signaling pathway improves total oxidizing ability; anti‑apoptosis and other aspects serve a vital role. In the present study, LBP intervention was performed in vivo and in vitro to observe its effect on the Keap1/Nrf2 pathway and oxidative stress‑associated indicators in order to clarify its protective mechanism. For the in vivo experiments, 60 male Sprague‑Dawley rats were randomly divided into normal control and aerobic, exhaustive and exhaustive exercise + LBP (200 mg/kg/day) groups. For the in vitro experiments, a rat thoracic aortic endothelial cell (RTAEC) oxidative stress model was established using angiotensin II (AngII) and divided into blank control, LBP (3,200 µg/ml), AngII (1x10‑4 mol/l) and AngII + LBP groups. For in vitro experiments, small interfering (si)RNA (50 nmol) was used to transfect RTAEC and induce gene silencing of Nrf2. ELISA, hematoxylin and eosin staining, TUNEL, immunofluorescence, western blotting, immunohistochemistry and reverse transcription‑quantitative PCR were used to evaluate and verify the effect of LBP on oxidative stress indicators and the expression of Keap1/Nrf2 antioxidative stress signaling pathway. The in vivo experiments showed that LBP decreased the expression of serum malondialdehyde (MDA) and AngII, as well as apoptosis of blood vessels and cardiomyocytes and expression of TNF‑α in rats following exhaustive exercise. Meanwhile, LBP enhanced expression of the Keap1/Nrf2 signaling pathway and downstream associated protein glutamyl‑cysteine synthetase catalytic subunit (GCLC), quinone oxidoreductase 1 (NQO1) and glutamate‑cysteine ligase modified subunit (GCLM) in the thoracic aorta and myocardium of rats following exhaustive exercise. In RTAEC in vitro, LBP decreased the expression of MDA and TNF‑α in the supernatant, promoted the nuclear translocation of Nrf2 and increased expression levels of GCLC, NQO1 and GCLM. Following siNrf2 transfection into endothelial cells, the anti‑inflammatory and antioxidant stress effects of LBP were decreased. LBP was found to enhance the expression of the Keap1/Nrf2 antioxidant stress signaling pathway in endothelial cells, decreasing oxidative stress and the inflammatory response. Moreover, LBP improved the antioxidant stress ability of endothelial cells and alleviated injury of myocardial vascular tissue, thereby protecting the cardiovascular system.
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Affiliation(s)
- Xiaohui Hu
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Le Mu
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Lingqin Zhu
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Xiaoyu Chang
- School of Public Health and Management, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Lihong Nie
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Li Wang
- Department of General Practice, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
| | - Guanghua Li
- School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, Ningxia 750004, P.R. China
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26
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Sarikaya B, Runa M, Dayanir D, Gündüztepe Y, Pinar L. Paraoxonase and oxidative stress changes in left and right ventricles of exhaustively exercised rats. Can J Physiol Pharmacol 2021; 99:752-759. [PMID: 33201749 DOI: 10.1139/cjpp-2020-0332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Exhaustive exercise can cause subclinical inflammation to the heart, as it is an oxidative tissue that works continuously. The effect of exhaustive exercise on left and right ventricles (LVs, RVs) may be different. It is claimed that paraoxonase-1 (PON1), an antioxidant enzyme, has a cardioprotective effect on oxidative stress. Rats were separated as non-exercised controls (Con), those euthanized immediately after (E-0) and 24 h after exhaustive exercise (E-24). Cardiac troponin-I (cTnI), total antioxidant status (TAS), total oxidant status (TOS), PON1 activities, and histological findings in LV and RV of the exhausted rats were evaluated. TAS and PON1 levels were lower in LVs compared with RVs of all groups. TOS levels were high in LVs compared with RVs of all groups. In LVs, TAS levels decreased significantly in the E-0 group while PON1 activity decreased in E-0 and E-24 groups compared with controls. In LVs, TOS levels decreased significantly in E-0 and E-24 groups, but in RVs a decrease was seen only in the E-0 group. cTnI levels increased significantly in the E-0 group and decreased to control levels in the E-24 group. Considering the histological and biochemical findings, exhaustive exercise affected the heart to the maximum during and just after exhaustion, and LV was influenced more than RV.
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Affiliation(s)
- Badegül Sarikaya
- Department of Physiology, Faculty of Medicine, Atılım University, Ankara, Turkey
| | - Metin Runa
- Department of Physiology, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Duygu Dayanir
- Department of Histology and Embryology, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Yasemin Gündüztepe
- Department of Biochemistry, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Lamia Pinar
- Department of Physiology, Faculty of Medicine, Okan University, İstanbul, Turkey
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Luo XY, Zhong Z, Chong AG, Zhang WW, Wu XD. Function and Mechanism of Trimetazidine in Myocardial Infarction-Induced Myocardial Energy Metabolism Disorder Through the SIRT1-AMPK Pathway. Front Physiol 2021; 12:645041. [PMID: 34220528 PMCID: PMC8248253 DOI: 10.3389/fphys.2021.645041] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/14/2021] [Indexed: 02/04/2023] Open
Abstract
Myocardial energy metabolism (MEM) is an important factor of myocardial injury. Trimetazidine (TMZ) provides protection against myocardial ischemia/reperfusion injury. The current study set out to evaluate the effect and mechanism of TMZ on MEM disorder induced by myocardial infarction (MI). Firstly, a MI mouse model was established by coronary artery ligation, which was then treated with different concentrations of TMZ (5, 10, and 20 mg kg-1 day-1). The results suggested that TMZ reduced the heart/weight ratio in a concentration-dependent manner. TMZ also reduced the levels of Bax and cleaved caspase-3 and promoted Bcl-2 expression. In addition, TMZ augmented adenosine triphosphate (ATP) production and superoxide dismutase (SOD) activity induced by MI and decreased the levels of lipid peroxide (LPO), free fatty acids (FFA), and nitric oxide (NO) in a concentration-dependent manner (all P < 0.05). Furthermore, an H2O2-induced cell injury model was established and treated with different concentrations of TMZ (1, 5, and 10 μM). The results showed that SIRT1 overexpression promoted ATP production and reactive oxygen species (ROS) activity and reduced the levels of LPO, FFA, and NO in H9C2 cardiomyocytes treated with H2O2 and TMZ. Silencing SIRT1 suppressed ATP production and ROS activity and increased the levels of LPO, FFA, and NO (all P < 0.05). TMZ activated the SIRT1-AMPK pathway by increasing SIRT1 expression and AMPK phosphorylation. In conclusion, TMZ inhibited MI-induced myocardial apoptosis and MEM disorder by activating the SIRT1-AMPK pathway.
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Affiliation(s)
- Xiu-Ying Luo
- Department of Cardiology, The Second Affiliated Hospital (Jiande Branch), Zhejiang University School of Medicine, Hangzhou, China
| | - Ze Zhong
- Department of Cardiology, The Second Affiliated Hospital (Jiande Branch), Zhejiang University School of Medicine, Hangzhou, China
| | - Ai-Guo Chong
- Department of Cardiology, The Second Affiliated Hospital (Jiande Branch), Zhejiang University School of Medicine, Hangzhou, China
| | - Wei-Wei Zhang
- Department of Cardiology, The Second Affiliated Hospital (Jiande Branch), Zhejiang University School of Medicine, Hangzhou, China
| | - Xin-Dong Wu
- Department of Cardiology, The Second Affiliated Hospital (Jiande Branch), Zhejiang University School of Medicine, Hangzhou, China
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Liang Y, Ren K, Xu XD, Zhao GJ. Trimetazidine attenuates diabetic inflammation via Nrf2 activation. Int J Cardiol 2021; 307:153. [PMID: 32354403 DOI: 10.1016/j.ijcard.2019.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 10/01/2019] [Indexed: 01/15/2023]
Affiliation(s)
- Yin Liang
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan City People's Hospital, Qingyuan, 511518, Guangdong, China
| | - Kun Ren
- Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, Anhui, PR China
| | - Xiao-Dan Xu
- Department of Pathology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230032, Anhui, PR China
| | - Guo-Jun Zhao
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan City People's Hospital, Qingyuan, 511518, Guangdong, China.
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29
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Wan DF, Pan SS, Tong YS, Huang Y. Exercise Preconditioning Promotes Autophagy to Cooperate for Cardioprotection by Increasing LC3 Lipidation-Associated Proteins. Front Physiol 2021; 12:599892. [PMID: 34025444 PMCID: PMC8131968 DOI: 10.3389/fphys.2021.599892] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 04/13/2021] [Indexed: 12/19/2022] Open
Abstract
The cardioprotection of exercise preconditioning (EP) has been well documented. EP can be divided into two phases that are the induction of exercise preconditioning (IEP) and the protection of exercise preconditioning (PEP). PEP is characterized by biphasic protection, including early exercise preconditioning (EEP) and late exercise preconditioning (LEP). LC3 lipidation-mediated autophagy plays a pivotal role in cardioprotection. This study aimed to investigate the alterations of LC3 lipidation-associated proteins during EP-induced cardioprotection against myocardial injury induced by exhaustive exercise (EE) was used in a rat model of EP. These rats were subjected to an intermittent exercise consisting of four periods, with each period including 10 min of running at 30 m/min and 0% grade (approximately 75% VO2max) followed by 10 min of intermittent rest. A model of EE-induced myocardial injury was developed by subjecting rats to a consecutive running (30 m/min, 0% grade) till exhaustion. Following EEP, the colocalization of LC3 with Atg7 was significantly increased, and LC3-I, LC3-II, LC3-II/LC3-I, Atg7, Atg4B, and Atg3 levels were significantly increased. Atg7, Atg4B, and Atg3 mRNAs were all significantly upregulated, and LC3 mRNAs tended to be higher. Following LEP, Atg4B, and Atg3 levels were significantly increased. Atg7, Atg4B, and Atg3 mRNAs were all significantly upregulated, and LC3 mRNAs tended to be higher. A group of rats were subjected to EEP followed by EE, and the co-localization of LC3 with Atg7 was significantly increased, while LC3-I, LC3-II, LC3-II/LC3-I, Atg7, Atg4B, and Atg3 levels were also significantly increased. Moreover, there was a significant increase in the co-localization of LC3 with Atg7, LC3-I, LC3-II, Atg7, and Atg4B levels during LEP followed by EE. The formation of autophagosome during LEP followed by EE may have been weaker than that during EEP followed by EE due to the lower lipidation of LC3. EP may promote autophagy to maintain cell homeostasis and survival, which cooperates for cardioprotection of alleviating exhaustive exercise-induced myocardial injury by increasing LC3 lipidation-associated proteins. There is a difference between EEP and LEP in terms of the mechanisms of cardioprotection afforded by these respective conditions. The positive regulation of transcription and translation level of LC3 lipidation-associated proteins may all be involved in the mechanism of EEP and LEP, while compared with LEP, the regulation of translation level of EEP is more positively to promote autophagy.
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Affiliation(s)
- Dong-Feng Wan
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Shan-Shan Pan
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yi-Shan Tong
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Yue Huang
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
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Harnessing the cardiovascular benefits of exercise: are Nrf2 activators useful? SPORTS MEDICINE AND HEALTH SCIENCE 2021; 3:70-79. [PMID: 35782161 PMCID: PMC9219337 DOI: 10.1016/j.smhs.2021.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/17/2021] [Accepted: 04/19/2021] [Indexed: 01/07/2023] Open
Abstract
The ability of physical activity to ameliorate cardiovascular disease and improve cardiovascular health is well accepted, but many aspects of the molecular mechanisms underlying these benefits are incompletely understood. Exercise increases the levels of reactive oxygen species (ROS) through various mechanisms. This triggers the activation of Nrf2, a redox-sensitive transcription factor activated by increases in oxidative stress. Activation of Nrf2 mitigates oxidative stress by increasing the nuclear transcription of many antioxidant genes while also mediating additional beneficial effects through the cytoprotective nature of Nrf2 signaling. Understanding the transcriptional patterns of Nrf2 caused by exercise can help in the design of pharmacological mimicry of the process in patients who are unable to exercise for various reasons.
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Liu X, Liang F, Song W, Diao X, Zhu W, Yang J. Effect of Nrf2 signaling pathway on the improvement of intestinal epithelial barrier dysfunction by hyperbaric oxygen treatment after spinal cord injury. Cell Stress Chaperones 2021; 26:433-441. [PMID: 33471265 PMCID: PMC7925733 DOI: 10.1007/s12192-020-01190-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/12/2020] [Accepted: 12/21/2020] [Indexed: 12/29/2022] Open
Abstract
Disruption of the intestinal epithelial barrier following spinal cord injury (SCI) seriously affect long-term quality of life. Oxidative stress-induced epithelial cells' injury contributes to the epithelial barrier dysfunction. Hyperbaric oxygen (HBO) treatment has been proved to alleviate SCI. However, it is unclear whether or not HBO treatment affects intestinal barrier function following SCI. In this study, our purpose was to explore the impact of HBO treatment on intestinal epithelial barrier function and underlying mechanisms following SCI. An SCI model was established in rats, and the rats received HBO treatment. Intestinal injury, mucosal permeability, intercellular junction proteins, and oxidative stress indicators were evaluated in our study. We found that HBO treatment significantly alleviated intestinal histological damage, reduced mucosal permeability, and markedly prevented bacterial translocation. Furthermore, HBO treatment significantly increased the expression of Claudin-1 and E-cadherin, inhibited intestinal tissue oxidative stress as demonstrated by upregulation of superoxide dismutase and glutathione, and HBO downregulated malondialdehyde. Mechanically, we demonstrated that HBO treatment ameliorated intestinal oxidative stress possibly through upregulating nuclear factor E2-related factor 2 (Nrf2) and its downstream targets, Heme oxygenase-1(HO-1), NADH-quinone oxidoreductase-1(NQO-1), and glutamate cysteine ligase catalytic subunit (GCLC). These results suggested that HBO treatment triggered antioxidative effects against intestinal epithelial barrier dysfunction by promoting Nrf2 signaling pathway after SCI.
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Affiliation(s)
- Xuehua Liu
- Department of Hyperbaric Oxygen Medicine, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongti South Road, Chaoyang District Beijing, Beijing, 100020, China
| | - Fang Liang
- Department of Hyperbaric Oxygen Medicine, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongti South Road, Chaoyang District Beijing, Beijing, 100020, China
| | - Wei Song
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xiaoli Diao
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Wanqiu Zhu
- Department of Hyperbaric Oxygen Medicine, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongti South Road, Chaoyang District Beijing, Beijing, 100020, China
| | - Jing Yang
- Department of Hyperbaric Oxygen Medicine, Beijing Chaoyang Hospital, Capital Medical University, 8 Gongti South Road, Chaoyang District Beijing, Beijing, 100020, China.
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Mallard AR, Spathis JG, Coombes JS. Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) and exercise. Free Radic Biol Med 2020; 160:471-479. [PMID: 32871230 DOI: 10.1016/j.freeradbiomed.2020.08.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/18/2020] [Accepted: 08/24/2020] [Indexed: 12/15/2022]
Abstract
Chronic metabolic health diseases are increasing worldwide placing strain on healthcare systems and importantly, impacting individuals' quality of life. It is well established that many chronic diseases are associated with inflammation and oxidative stress. Exercise is a known strategy to manage and treat inflammation in animals and humans. Understanding the mechanisms which cause acute and chronic changes to systems via various exercise protocols may provide insights into how we can better clinically manage patients with inflammatory and oxidative stress associated diseases. Nrf2 is a basic leucine transcription factor which regulates the expression of antioxidant proteins to protect against damage caused by electrophilic or oxidative stress. The aim of this narrative review is to provide an overview of the literature which has investigated the relationship between acute and chronic exercise training and Nrf2 protein, mRNA and Nrf2-ARE binding activity. This narrative review presents analysis of twenty-nine articles presenting studies using animals and humans. Findings from animal models suggest that exercise increases all molecular aspects of the Nrf2-ARE pathway in all tissues studied. It was noted that there seems to be an age-related decline in Nrf2 protein upregulation with exercise training. In humans, however, there is a lack of evidence to support this claim.
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Affiliation(s)
- Alistair R Mallard
- Centre for Research on Exercise, Physical Activity and Health, School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Queensland, Australia.
| | - Jemima G Spathis
- School of Behavioural and Health Sciences, Australian Catholic University, Brisbane, Queensland, Australia
| | - Jeff S Coombes
- Centre for Research on Exercise, Physical Activity and Health, School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Queensland, Australia
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Intensive Running Enhances NF-κB Activity in the Mice Liver and the Intervention Effects of Quercetin. Nutrients 2020; 12:nu12092770. [PMID: 32932805 PMCID: PMC7551556 DOI: 10.3390/nu12092770] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 11/17/2022] Open
Abstract
Background: Emerging evidence has supported that intensive exercise induces weakened performance and immune and metabolic disorders. We systematically evaluated the effects of quercetin against hepatic inflammatory damage caused by repeated intensive exercise and explored the potential mechanism. Methods: Male BALB/c mice were administered quercetin (100 mg/kg BW) for four weeks, and performed a treadmill running protocol of 28 m/min, 5° slope, 90 min/day concurrently for the last seven days. Results: Quercetin administration reduced the leakage of aspartic acid and alanine aminotransferase and improved ultrastructural abnormalities such as swelling, and degeneration caused by high-intensity running in mice. Quercetin significantly decreased the hepatic and plasmatic levels of inflammatory cytokines IL-1β, IL-6, TNF-α, inducible nitric oxide synthase, cyclooxygenase-2 and intercellular adhesion molecule-1—provoked by over-exercise. Furthermore, diminished activation and nuclear translocation of NF-κB were found after quercetin treatment through inhibiting IKKα and Iκbα phosphorylation of intensive running mice. Conclusion: Quercetin offers protection for mouse livers against intensive sports-induced inflammatory injury, and the suppression of the NF-κB signal transduction pathway may play a role in its anti-inflammatory effects. Our findings broaden our understanding of natural phytochemicals as a promising strategy to prevent excessive exercise damage.
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Shaker SR, Al-Amran F, Fatima G, Al-Aubaid H, Hadi NR. Trimetazidine Improves the Outcome of EECP Therapy in Patients with Refractory Angina Pectoris. Med Arch 2020; 74:199-204. [PMID: 32801436 PMCID: PMC7406001 DOI: 10.5455/medarh.2020.74.199-204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Introduction: Cardiovascular disease (CAD) associated with death and disability remains a serious medical problem. In some patients the initial clinical coronary artery disease presentation is stable angina pectoris. Aim: The aim of the study was to evaluate the effect of EECP therapy with or without trimetazidine (TMZ) in patients with refractory angina via modulating peripheral monocyte expression of Toll like receptor2 (TLR2) and its downstream signaling. Methods: This is a double-blind randomized prospective study in which 88 stable refractory angina patients allocated into two groups, Enhanced External Counter Pulsation (EECP) group: included 44 patients with stable refractory angina, and were treated with EECP-Therapy. TMZ-EECP group: included 44 patients with stable refractory angina, we gave TMZ 35 mg twice daily in addition to EECP-Therapy. Results: TLR2 expression in peripheral monocyte investigated by flow cytometry and 8-iso-prostaglandin F2β (8-iso-PGF2 β), interleukin1β (IL-1β), heat shock protein 60 (HSP60) and monocytes chemoattractant protein-1(MCP-1) were also measured before the EECP-therapy and before giving TMZ to patients, and after 35 hours of EECP treatment (7 consecutive weeks). Inhibition in TLR2 expression in peripheral monocyte was observed among the EECP group (P<0.05). Inflammatory cytokine MCP-1 was remarkably decreased in both study groups but (heat shock protein 60 (HSP60), MCP-1 and interleukin-1β (IL-1β)) significantly decreased levels were observed among the TMZ-EECP group (P<0.05). Also, the oxidative stress biomarker 8-iso-prostaglandin F2β (8-iso-PGF2β) was decreased in both study groups but significantly decreased levels were observed among the TMZ-EECP group (P<0.05). TMZ and EECP therapy in patients with stable refractory angina remarkably decreased the inflammatory markers HSP60, MCP-1 and IL-1β in serum levels also the decreased levels were found in serum levels of oxidative stress marker 8-iso-PGF2β serum level. Conclusion: EECP-therapy decreased the expression of TLR2 on peripheral monocytes in patients with chronic stable refractory angina which yield improvement in the quality of patients’ life by decreasing the frequency of angina episodes, decreasing the Short-acting nitrate use and change the exercise tolerance and distance.
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Affiliation(s)
- Saad Rasool Shaker
- Department of Pharmacology and Therapeutics, Faculty of Medicine, University of Kufa, Iraq
| | - Fadhil Al-Amran
- Department of Cardiothoracic Surgery, Faculty of Medicine, University of Kufa
| | - Ghizal Fatima
- Department of Biotechnology, Era University, Lucknow, India
| | | | - Najah R Hadi
- Department of Pharmacology and Therapeutics, Faculty of Medicine, University of Kufa, Iraq
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Freitas AKL, Silva MTB, Silva CMS, Prata MMG, Rodrigues FAP, Siqueira RJB, Lima AAM, Santos AA, Havt A. Alanyl-glutamine protects the intestinal barrier function in trained rats against the impact of acute exhaustive exercise. ACTA ACUST UNITED AC 2020; 53:e9211. [PMID: 32321150 PMCID: PMC7184964 DOI: 10.1590/1414-431x20209211] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 02/11/2020] [Indexed: 01/29/2023]
Abstract
Strenuous exercise triggers deleterious effects on the intestinal epithelium, but their mechanisms are still uncertain. Here, we investigated whether a prolonged training and an additional exhaustive training protocol alter intestinal permeability and the putative effect of alanyl-glutamine (AG) pretreatment in this condition. Rats were allocated into 5 different groups: 1) sedentary; 2 and 3) trained (50 min per day, 5 days per week for 12 weeks) with or without 6 weeks oral (1.5 g/kg) AG supplementation; 4 and 5) trained and subjected to an additional exhaustive test protocol with or without oral AG supplementation. Venous blood samples were collected to determine gasometrical indices at the end of the 12-week protocol or after exhaustive test. Lactate and glucose levels were determined before, during, and after the exhaustive test. Ileum tissue collected after all experimental procedures was used for gene expression analysis of Zonula occludens 1 (ZO-1), occludin, claudin-2, and oligopeptide transporter 1 (PepT-1). Intestinal permeability was assessed by urinary lactulose/mannitol test collected after the 12-week protocol or the exhaustive test. The exhaustive test decreased pH and base excess and increased pCO2. Training sessions delayed exhaustion time and reduced the changes in blood glucose and lactate levels. Trained rats exhibited upregulation of PEPT-1, ZO-1, and occludin mRNA, which were partially protected by AG. Exhaustive exercise induced intestinal paracellular leakage associated with the upregulation of claudin-2, a phenomenon protected by AG treatment. Thus, AG partially prevented intestinal training adaptations but also blocked paracellular leakage during exhaustive exercise involving claudin-2 and occludin gene expression.
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Affiliation(s)
- A K L Freitas
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - M T B Silva
- Departamento de Educação Física, Universidade Federal do Piauí, Teresina, PI, Brasil
| | - C M S Silva
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - M M G Prata
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - F A P Rodrigues
- Departamento de Educação Física e Esporte, Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Fortaleza, CE, Brasil
| | - R J B Siqueira
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A A M Lima
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A A Santos
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
| | - A Havt
- Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, CE, Brasil
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Protective effects of trimetazidine and coenzyme Q10 on cisplatin-induced cardiotoxicity by alleviating oxidative stress and mitochondrial dysfunction. Anatol J Cardiol 2020; 22:232-239. [PMID: 31674935 PMCID: PMC6955063 DOI: 10.14744/anatoljcardiol.2019.83710] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Objective: The objective of this study was to investigate the effects of trimetazidine (TMZ) and coenzyme Q10 (CoQ10) on cisplatin-induced cardiotoxicity in rat cardiomyocytes. Methods: Rat cardiomyocytes were isolated and subjected to cisplatin (200 µM) treatment with and without TMZ (200 µM) and CoQ10 (200 mg/L) pretreatment. The cell viability, apoptosis, oxidant and antioxidant indicators, and mitochondrial dysfunction were examined. Results: TMZ or CoQ10 significantly attenuated cisplatin-induced cell viability inhibition (p<0.01) and apoptosis (p<0.001), and the combined use of TMZ and CoQ10 pretreatment exerted a pronounced effect compared to the effects of using each of these agents individually (p<0.05). TMZ or CoQ10 inhibited the levels of reactive oxidative species (ROS, p<0.01) and malondialdehyde (MDA, p<0.001 and p<0.01, respectively), elevated the activities of antioxidant enzymes superoxide dismutase (SOD, p<0.01) and catalase (CAT, p<0.01 and p<0.05, respectively), evidently enhanced nuclear translocation of nuclear factor erythroid 2-related factor 2 (Nrf2, p<0.05), alleviated mitochondrial membrane potential (ΔΨm) loss (p<0.05), and down-regulated the release of cytochrome c (cyto-c) into the cytosol (p<0.01) in cisplatin-treated cells. The combined use of TMZ and CoQ10 treatment was more effective than using either agent alone (p<0.01 for ROS, MDA, CAT, and cytosolic cyto-c; p<0.05 for SOD, nuclear Nrf2, and ΔΨm loss). Conclusion: TMZ and CoQ10 showed protective effects against cisplatin-induced cardiotoxicity via attenuating oxidative stress.
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Wu J, Yang CL, Sha YK, Wu Y, Liu ZY, Yuan ZH, Sun ZL. Koumine Alleviates Lipopolysaccharide-Induced Intestinal Barrier Dysfunction in IPEC-J2 Cells by Regulating Nrf2/NF- κB Pathway. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2020; 48:127-142. [PMID: 31931594 DOI: 10.1142/s0192415x2050007x] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gelsemium elegans Benth. (G. elegans), a traditional Chinese medicine, has great potential as an effective growth promoter in animals, however, the mechanism of its actin remains unclear. Here, we evaluated the protective effects of koumine extract from G. elegans against lipopolysaccharide (LPS)-induced intestinal barrier dysfunction in IPEC-J2 cells through alleviation of inflammation and oxidative stress. MTT and LDH assays revealed that koumine significantly reduced LPS cytotoxicity. Transepithelial electrical resistance (TEER) and cell monolayer permeability assays showed that koumine treatment attenuated the LPS-induced intestinal barrier dysfunction with no particularly different effects in tight junction proteins such as ZO-1, claudin-1, and occludin. LPS-triggered inflammatory response was also suppressed by koumine, as evidenced by the downregulated inflammatory factors, including TNF-α, IL-6, IL-1β, NO, iNOS, and COX-2, which was closely connected with the inhibition of NF-κB pathway for the decrease of phosphorylation of IκBα and NF-κB and nuclear translocation of p-p65. Amount of reactive oxygen species (ROS) and MDA induced by LPS was also reduced by koumine through activation of Nrf2 pathway, and increased in the levels of Nrf2 and HO-1 degradation of keap-1 to promote anti-oxidants, including superoxide dismutase (SOD) and catalase (CAT). To summarize, koumine-reduced the oxidative stress and inflammatory reaction triggered by LPS through regulation of the Nrf2/NF-κB signaling pathway and preventing intestinal barrier dysfunction.
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Affiliation(s)
- Jing Wu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Collaborative Innovation for Utilization of Botanical Function Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China
| | - Cheng-Lin Yang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Collaborative Innovation for Utilization of Botanical Function Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China
| | - Yuan-Kun Sha
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Collaborative Innovation for Utilization of Botanical Function Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China
| | - Yong Wu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Collaborative Innovation for Utilization of Botanical Function Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Engineering Research Center of Veterinary Drug, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China
| | - Zhao-Ying Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Collaborative Innovation for Utilization of Botanical Function Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Engineering Research Center of Veterinary Drug, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China
| | - Zhi-Hang Yuan
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Collaborative Innovation for Utilization of Botanical Function Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Engineering Research Center of Veterinary Drug, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China
| | - Zhi-Liang Sun
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Collaborative Innovation for Utilization of Botanical Function Ingredients, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China.,Hunan Engineering Research Center of Veterinary Drug, Hunan Agricultural University, Changsha, Hunan 410128, P. R. China
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Rao Z, Zheng L, Huang H, Feng Y, Shi R. α-Klotho Expression in Mouse Tissues Following Acute Exhaustive Exercise. Front Physiol 2019; 10:1498. [PMID: 31920703 PMCID: PMC6919267 DOI: 10.3389/fphys.2019.01498] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 11/25/2019] [Indexed: 12/22/2022] Open
Abstract
α-Klotho, a multifunctional protein, has been demonstrated to protect tissues from injury via anti-oxidation and anti-inflammatory effects. The expression of α-klotho is regulated by several physiological and pathological factors, including acute inflammatory stress, oxidative stress, hypertension, and chronic renal failure. Exhaustive exercise has been reported to result in tissue damage, which is induced by inflammation, oxidative stress, and energy metabolism disturbance. However, little is known about the effects of exhaustive exercise on the expression of α-klotho in various tissues. To determine the effects, the treadmill exhaustion test in mice was performed and the mice were sacrificed at different time points following exhaustive exercise. Our results confirmed that the full-length (130 kDa) and shorter-form (65 kDa) α-klotho were primarily expressed in the kidneys. Moreover, we found that, except for the kidneys and brain, other tissues primarily expressed the shorter-form α-klotho, including liver, which was in contrast to previous reports. Furthermore, the shorter-form α-klotho was decreased immediately following the acute exhaustive exercise and was then restored to the pre-exercise level or even higher levels in the next few days. Our results indicate that α-klotho may play a key role in the body exhaustion and recovery following exhaustive exercise.
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Affiliation(s)
- Zhijian Rao
- College of Physical Education, Shanghai Normal University, Shanghai, China.,School of Kinesiology, Shanghai University of Sport, Shanghai, China.,Department of Kinesiology and Physiology, East Carolina University, Greenville, NC, United States
| | - Lifang Zheng
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Hu Huang
- Department of Kinesiology and Physiology, East Carolina University, Greenville, NC, United States
| | - Yu Feng
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Rengfei Shi
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
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