1
|
Muhammad J, Erlwanger KH, Ibrahim KG, Mokotedi L. Effects of voluntarily consumed sweetened alcohol and naringin on cardiac function in male and female Sprague-Dawley rats. Physiol Rep 2024; 12:e70030. [PMID: 39245811 PMCID: PMC11381194 DOI: 10.14814/phy2.70030] [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: 03/13/2024] [Revised: 08/19/2024] [Accepted: 08/23/2024] [Indexed: 09/10/2024] Open
Abstract
This study assessed the impact of sweetened alcohol and naringin on cardiac function in Sprague-Dawley rats. Male (n = 40) and female (n = 40) rats were allocated to control, sweetened alcohol (SOH), naringin (NA), and sweetened alcohol with naringin (SOH + NA) groups. SOH and SOH + NA rats received 10% alcohol + 20% fructose in gelatine; SOH + NA and NA rats received 50 mg/kg naringin in gelatine daily for 10 weeks. Echocardiography was performed to assess left ventricular (LV) function. LV cardiomyocyte diameters and collagen area fraction were determined by H&E and picrosirius-red staining, respectively. In males, sweetened alcohol and naringin did not affect cardiac function. Female SOH rats had increased LV end-diastolic posterior wall (p = 0.04), relative wall thicknesses (p = 0.01), and LV cardiomyocyte diameters (p = 0.005) compared with control. Female SOH and SOH + NA had reduced lateral e' and e'/a' and increased E/e' (p < 0.0001). Female SOH (p = 0.01) and SOH + NA (p = 0.04) rats had increased LV collagen area fraction compared with controls. In males, neither sweetened alcohol nor naringin affected cardiac geometry or diastolic function. In females, sweetened alcohol induced concentric remodelling, impaired LV relaxation, and elevated filling pressures. Naringin may have the potential to improve the sweetened alcohol-induced concentric remodelling; however, it did not ameliorate diastolic dysfunction in females.
Collapse
Affiliation(s)
- Jelani Muhammad
- School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, Federal University Birnin Kebbi, Birnin Kebbi, Kebbi State, Nigeria
| | - Kennedy H Erlwanger
- School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Kasimu G Ibrahim
- School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- Department of Basic Medical and Dental Sciences, Faculty of Dentistry, Zarqa University, Zarqa, Jordan
- Department of Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Lebogang Mokotedi
- Department of Physiology, School of Medicine, Sefako Makgatho Health Sciences University, Ga-Rankuwa, South Africa
- Integrated Molecular Physiology Research Initiative (IMPRI), School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| |
Collapse
|
2
|
Aşır F, Erdemci F, Çankırı Z, Korak T, Başaran SÖ, Kaplan Ö, Yükselmiş Ö, Dönmezdil N, Ayaz H, Kaplan Ş, Tunik S. Zonisamide Ameliorated the Apoptosis and Inflammation in Cerebellar Tissue of Induced Alcohol Addiction Animal Model. Life (Basel) 2024; 14:795. [PMID: 39063550 PMCID: PMC11278003 DOI: 10.3390/life14070795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 07/28/2024] Open
Abstract
This study investigated the effects of zonisamide treatment on cerebellar tissues in an experimental alcohol addiction (AA) model and its potential mechanisms of action, particularly regarding apoptotic protease activating factor-1 (APAF-1) and tumor necrosis factor-alpha (TNF-α) expression. Thirty rats were divided into three groups: sham, ethanol (EtOH), and EtOH + zonisamide. AA was induced by administering 6 cc of EtOH orally every 8 h for 4 days. Zonisamide (100 mg/kg) was given to rats once daily before EtOH administration. Motor defects were evaluated using an open field maze. Serum TNF-α levels were measured from blood samples. Cerebellar sections were processed for histological examination and immunostained for APAF-1 and TNF-α. Protein interaction networks were constructed using Cytoscape, and functional annotations were performed with ShinyGO (version 0.80) software. The traveled area in the EtOH group was significantly reduced compared to the sham group (p = 0.0005). Rats in the EtOH + zonisamide group covered a larger area, with zonisamide treatment significantly improving locomotor ability compared to the EtOH group (p = 0.0463). Serum TNF-α levels were significantly elevated in the EtOH group compared to the sham group (p < 0.0001) and were significantly decreased in the EtOH + zonisamide group compared to the EtOH group (p = 0.0309). Regular cerebellar histological layers were observed in the sham group, while EtOH induction caused loss of cerebellar tissue integrity, neuronal degeneration, vascular dilatation and congestion, reduced myelin density, and neuropils in the EtOH group. Zonisamide treatment improved these pathologies, enhancing myelination and neuropil formation. Negative APAF-1 and TNF-α expressions were observed across cerebellar layers in the sham group. Due to EtOH toxicity, APAF-1 and TNF-α expression were upregulated in the EtOH group compared to the sham group (p < 0.001 for both). Zonisamide treatment downregulated these protein expressions in the EtOH + zonisamide group compared to the EtOH group (p < 0.001 and p = 0.0087, respectively). APAF-1 was primarily associated with AA through antifolate resistance, endopeptidases, and the interleukin-1 pathway, while TNF-α was predominantly enriched in infections and choline-binding, indicating zonisamide's impact on immune and inflammatory pathways. In conclusion, zonisamide treatment significantly mitigated ethanol-induced cerebellar damage and inflammation in an AA model. Zonisamide improved locomotor function and reduced serum TNF-α levels, as well as APAF-1 and TNF-α expression in cerebellar tissues. These findings suggest that zonisamide exerts its protective effects by modulating immune and inflammatory pathways, thereby preserving cerebellar integrity and function.
Collapse
Affiliation(s)
- Fırat Aşır
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Fikri Erdemci
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Zuhal Çankırı
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Tuğcan Korak
- Department of Medical Biology, Medical Faculty, Kocaeli University, 41001 Kocaeli, Turkey
| | - Süreyya Özdemir Başaran
- Department of Andrology, Gazi Yasargil Education and Research Hospital, Health Sciences University, 21090 Diyarbakir, Turkey
| | - Özge Kaplan
- Department of Andrology, Gazi Yasargil Education and Research Hospital, Health Sciences University, 21090 Diyarbakir, Turkey
| | - Özkan Yükselmiş
- Division of Physical Medicine and Rehabilitation, Diyarbakır Dağ Kapı State Hospital, 21100 Diyarbakır, Turkey
| | - Nilüfer Dönmezdil
- Department of Audiology, Faculty of Health Sciences, Mardin Artuklu University, 47200 Mardin, Turkey
| | - Hayat Ayaz
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Şehmus Kaplan
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| | - Selçuk Tunik
- Department of Histology and Embryology, Medical Faculty, Dicle University, 21280 Diyarbakır, Turkey
| |
Collapse
|
3
|
Song C, Li D, Huang L, Zhang J, Zhao X. Role of Ferroptosis Regulation by Nrf2/NQO1 Pathway in Alcohol-Induced Cardiotoxicity In Vitro and In Vivo. Chem Res Toxicol 2024; 37:1044-1052. [PMID: 38833663 DOI: 10.1021/acs.chemrestox.4c00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
The aim of the present study was to evaluate the cardiotoxic effects of alcohol and its potential toxic mechanism on ferroptosis in mice and H9c2 cells. Mice were intragastrically treated with three different concentrations of alcohol, 7, 14, and 28%, each day for 14 days. Body weight and electrocardiography (ECG) were recorded over the 14 day period. Serum creatine kinase (CK), lactic dehydrogenase (LDH), MDA, tissue iron, and GSH levels were measured. Cardiac tissues were examined histologically, and ferroptosis was assessed. In H9c2 cardiomyocytes, cell viability, reactive oxygen species (ROS), labile iron pool (LIP), and mitochondrial membrane potential (MMP) were measured. The proteins of ferroptosis were evaluated by the western blot technique in vivo and in vitro. The results showed that serum CK, LDH, MDA, and tissue iron levels significantly increased in the alcohol treatment group in a dose-dependent manner. The content of GSH decreased after alcohol treatment. ECG and histological examinations showed that alcohol impaired cardiac function and structure. In addition, the levels of ROS and LIP increased, and MMP levels decreased after alcohol treatment. Ferrostatin-1 (Fer-1) protected cells from lipid peroxidation. Western blotting analysis showed that alcohol downregulated the expression of Nrf2, NQO1, HO-1, and GPX4. The expressions of P53 and TfR were upregulated in vivo and in vitro. Fer-1 significantly alleviated alcohol-induced ferroptosis. In conclusion, the study showed that Nrf2/NQO1-dependent ferroptosis played a vital role in the cardiotoxicity induced by alcohol.
Collapse
Affiliation(s)
- Chunpu Song
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Dongjie Li
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Ling Huang
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
| | - Jie Zhang
- Department of Neurology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400000, China
| | - Xiaoyan Zhao
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China
- Engineering Research Center of Coptis Development & Utilization (Ministry of Education), College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| |
Collapse
|
4
|
Prokofiev II, Kustova MV, Nesterova AA, Perfilova VN, Khusainova GH, Borodkina LE, Tivon YV, Tyurenkov IN, Kataev VA, Latypova GM. Solid herbal extract of Primula veris L. improves morphofunctional condition of rats’ myocardium in chronic alcohol intoxicat. J Tradit Complement Med 2023; 13:306-314. [PMID: 37128197 PMCID: PMC10148137 DOI: 10.1016/j.jtcme.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 11/05/2022] [Accepted: 02/20/2023] [Indexed: 02/24/2023] Open
Abstract
Background and aim Chronic alcohol intoxication (CAI) induces heart damage. One of the promising ways of its treatment involves the administration of herbal medicinal products. The purpose of this study was to explore the effect of solid herbal extract of Primula veris L. (PVSHE) on the morphofunctional changes in rats' myocardium after CAI. Experimental procedure CAI was simulated for 24 weeks. Loading testing was used to assess the functional condition of the heart, the functional assessment of mitochondria was based on the polarographic determination of oxygen consumption rate and determination of the indices of lipid peroxidation and antioxidant enzymes activity. We performed a microscopic examination of the left ventricle following the standard protocol of histological processing and h&e staining. Results and conclusion PVSHE restricts the toxic effects of ethanol on the heart which was indicated by a higher rise in the rates of myocardial contraction (by an average of 3.9 times, P < 0.05) and relaxation (2.6 times under volume load, P < 0.05), LVP (by an average of 1.7 times, P < 0.05) and MISP (by an average of 1.5 times, P < 0.05). PVSHE caused an improvement in the functional state of rats' cardiac mitochondria exposed to CAI, which was demonstrated by on average 1.3-1.4 times (P < 0.05) as high RCR as compared to the control group. The histological examination of the myocardium of the animals treated with PVSHE showed the increase in the volume fraction of cardiac myocytes, and a 31.2% (P < 0.05) decline in the interstitial volume. Therefore, PVSHE has a protective effect on the heart after CAI.
Collapse
|
5
|
Labis V, Bazikyan E, Demin D, Dyachkova I, Zolotov D, Volkov A, Asadchikov V, Zhigalina O, Khmelenin D, Kuptsova D, Petrichuk S, Semikina E, Sizova S, Oleinikov V, Khaidukov S, Kozlov I. Cell-Molecular Interactions of Nano- and Microparticles in Dental Implantology. Int J Mol Sci 2023; 24:ijms24032267. [PMID: 36768589 PMCID: PMC9916569 DOI: 10.3390/ijms24032267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/04/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023] Open
Abstract
The role of metallic nano- and microparticles in the development of inflammation has not yet been investigated. Soft tissue biopsy specimens of the bone bed taken during surgical revisions, as well as supernatants obtained from the surface of the orthopedic structures and dental implants (control), were examined. Investigations were performed using X-ray microtomography, X-ray fluorescence analysis, and scanning electron microscopy. Histological studies of the bone bed tissues were performed. Nanoscale and microscale metallic particles were identified as participants in the inflammatory process in tissues. Supernatants containing nanoscale particles were obtained from the surfaces of 20 units of new dental implants. Early and late apoptosis and necrosis of immunocompetent cells after co-culture and induction by lipopolysaccharide and human venous blood serum were studied in an experiment with staging on the THP-1 (human monocytic) cell line using visualizing cytometry. As a result, it was found that nano- and microparticles emitted from the surface of the oxide layer of medical devices impregnated soft tissue biopsy specimens. By using different methods to analyze the cell-molecule interactions of nano- and microparticles both from a clinical perspective and an experimental research perspective, the possibility of forming a chronic immunopathological endogenous inflammatory process with an autoimmune component in the tissues was revealed.
Collapse
Affiliation(s)
- Varvara Labis
- Stomatology Faculty, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, 127473 Moscow, Russia
| | - Ernest Bazikyan
- Stomatology Faculty, A.I. Yevdokimov Moscow State University of Medicine and Dentistry, 127473 Moscow, Russia
| | - Denis Demin
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, 119991 Moscow, Russia
| | - Irina Dyachkova
- Federal Scientific Research Centre “Crystallography and Photonics” Russian Academy of Sciences, 119333 Moscow, Russia
- Correspondence:
| | - Denis Zolotov
- Federal Scientific Research Centre “Crystallography and Photonics” Russian Academy of Sciences, 119333 Moscow, Russia
| | - Alexey Volkov
- Federal State Budgetary Institution “National Medical Research Center for Traumatology and Orthopedics Named after N.N. Priorov” of the Ministry of Health of the Russian Federation, 127299 Moscow, Russia
- Department of Pathological Anatomy, Peoples’ Friendship University of Russia (RUDN University), 117198 Moscow, Russia
| | - Victor Asadchikov
- Federal Scientific Research Centre “Crystallography and Photonics” Russian Academy of Sciences, 119333 Moscow, Russia
| | - Olga Zhigalina
- Federal Scientific Research Centre “Crystallography and Photonics” Russian Academy of Sciences, 119333 Moscow, Russia
- Department of Machine-Building Technologies, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Dmitry Khmelenin
- Federal Scientific Research Centre “Crystallography and Photonics” Russian Academy of Sciences, 119333 Moscow, Russia
| | - Daria Kuptsova
- Federal State Autonomous Institution “National Medical Research Center for Children’s Health”, Ministry of Health of the Russian Federation, 119991 Moscow, Russia
| | - Svetlana Petrichuk
- Federal State Autonomous Institution “National Medical Research Center for Children’s Health”, Ministry of Health of the Russian Federation, 119991 Moscow, Russia
| | - Elena Semikina
- Federal State Autonomous Institution “National Medical Research Center for Children’s Health”, Ministry of Health of the Russian Federation, 119991 Moscow, Russia
| | - Svetlana Sizova
- Department of Biomaterials and Bionanotechnology, Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia
| | - Vladimir Oleinikov
- Department of Biomaterials and Bionanotechnology, Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia
| | - Sergey Khaidukov
- Department of Biomaterials and Bionanotechnology, Shemyakin & Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia
| | - Ivan Kozlov
- Institute of Professional Education, I.M. Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| |
Collapse
|
6
|
Ganjikunta VS, Maddula RR, Bhasha S, Sahukari R, Kondeti Ramudu S, Chenji V, Kesireddy SR, Zheng Z, Korivi M. Cardioprotective Effects of 6-Gingerol against Alcohol-Induced ROS-Mediated Tissue Injury and Apoptosis in Rats. Molecules 2022; 27:8606. [PMID: 36500700 PMCID: PMC9738005 DOI: 10.3390/molecules27238606] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022] Open
Abstract
The present study investigated the cardioprotective properties of 6-gingerol against alcohol-induced ROS-mediated cardiac tissue damage in rats. Experiments were conducted on 4 groups of rats, orally treated with control, 6-gingerol (10 mg/kg body weight), alcohol (6 g/kg body weight) and combination of 6-gingerol plus alcohol for two-month. In the results, we found 6-ginger treatment to alcohol-fed rats substantially suppressed ROS production in cardiac tissue. Alcohol-induced elevated 8-OHDG and protein carbonyls which represent oxidative modification of DNA and proteins were completely reversed by 6-gingerol. This was further endorsed by restored superoxide dismutase and catalase activities with 6-gingerol against alcohol-induced loss. The elevated cardiac biomarkers (CK-MB, cTn-T, cTn-I) and dyslipidemia in alcohol-intoxicated rats was significantly reversed by 6-gingerol. Furthermore, alcohol-induced apoptosis characterized by overexpression of cytochrome C, caspase-8 and caspase-9 was diminished with 6-gingerol treatment. Transmission electron microscope images conferred the cardioprotective properties of 6-gingerol as we have seen less structural derangements in mitochondria and reappearance of myofilaments. Our findings conclude that 6-ginger effectively protect alcohol-induced ROS-mediated cardiac tissue damage, which may be due to its potent antioxidant efficacy. Therefore, 6-gingerol could be a potential therapeutic molecule that can be used in the treatment of alcohol-induced myocardial injury.
Collapse
Affiliation(s)
| | - Ramana Reddy Maddula
- Division of Molecular Biology and Ethanopharmacology, Sri Venkateswara University, Tirupati 517 502, India
| | - Shanmugam Bhasha
- Division of Molecular Biology and Ethanopharmacology, Sri Venkateswara University, Tirupati 517 502, India
| | - Ravi Sahukari
- Division of Molecular Biology and Ethanopharmacology, Sri Venkateswara University, Tirupati 517 502, India
| | | | - Venkatrayulu Chenji
- Department of Marine Biology, Vikarama Simhapuri University, Nellore 524320, India
| | - Sathyavelu Reddy Kesireddy
- Division of Molecular Biology and Ethanopharmacology, Sri Venkateswara University, Tirupati 517 502, India
| | - Zhe Zheng
- Exercise and Metabolism Research Center, College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Mallikarjuna Korivi
- Exercise and Metabolism Research Center, College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua 321004, China
| |
Collapse
|
7
|
Ohlrogge AH, Frost L, Schnabel RB. Harmful Impact of Tobacco Smoking and Alcohol Consumption on the Atrial Myocardium. Cells 2022; 11:2576. [PMID: 36010652 PMCID: PMC9406618 DOI: 10.3390/cells11162576] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/05/2022] [Accepted: 08/11/2022] [Indexed: 11/23/2022] Open
Abstract
Tobacco smoking and alcohol consumption are widespread exposures that are legal and socially accepted in many societies. Both have been widely recognized as important risk factors for diseases in all vital organ systems including cardiovascular diseases, and with clinical manifestations that are associated with atrial dysfunction, so-called atrial cardiomyopathy, especially atrial fibrillation and stroke. The pathogenesis of atrial cardiomyopathy, atrial fibrillation, and stroke in context with smoking and alcohol consumption is complex and multifactorial, involving pathophysiological mechanisms, environmental, and societal aspects. This narrative review summarizes the current literature regarding alterations in the atrial myocardium that is associated with smoking and alcohol.
Collapse
Affiliation(s)
- Amelie H. Ohlrogge
- Department of Cardiology, University Heart and Vascular Centre Hamburg, 20246 Hamburg, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, 20246 Hamburg, Germany
| | - Lars Frost
- Diagnostic Centre, University Clinic for Development of Innovative Patient Pathways, Silkeborg Regional Hospital, 8600 Silkeborg, Denmark
- Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark
| | - Renate B. Schnabel
- Department of Cardiology, University Heart and Vascular Centre Hamburg, 20246 Hamburg, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Hamburg/Kiel/Lübeck, 20246 Hamburg, Germany
| |
Collapse
|
8
|
Ojeda ML, Nogales F, Del Carmen Gallego-López M, Carreras O. Binge drinking during the adolescence period causes oxidative damage-induced cardiometabolic disorders: A possible ameliorative approach with selenium supplementation. Life Sci 2022; 301:120618. [PMID: 35533761 DOI: 10.1016/j.lfs.2022.120618] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 05/03/2022] [Accepted: 05/04/2022] [Indexed: 12/15/2022]
Abstract
Binge drinking (BD) is the most common alcohol consumption model among adolescents. BD exposure during adolescence disrupts the nervous system function, being involved in the major mortality causes at this age: motor vehicle accidents, homicides and suicides. Recent studies have also shown that BD consumption during adolescence affects liver, renal and cardiovascular physiology, predisposing adolescents to future adult cardiometabolic damage. BD is a particularly pro-oxidant alcohol consumption pattern, because it leads to the production of a great source of reactive oxygen species (ROS) via the microsomal ethanol oxidizing system, also decreasing the antioxidant activity of glutathione peroxidase (GPx). Selenium (Se) is a mineral which plays a pivotal role against oxidation; it forms part of the catalytic center of different antioxidant selenoproteins such as GPxs (GPx1, GPx4, GPx3) and selenoprotein P (SelP). Specifically, GPx4 has an essential role in mitochondria, preventing their oxidation, apoptosis and NFkB-inflamative response, being this function even more relevant in heart's tissue. Se serum levels are decreased in acute and chronic alcoholic adult patients, being correlated to the severity of oxidation, liver damage and metabolic profile. Experimental studies have described that Se supplementation to alcohol exposed mice clearly decreases oxidative and liver damage. However, clinical BD effects on Se homeostasis and selenoproteins' tissue distribution related to oxidation during adolescence are not yet studied. In this narrative review we will describe the use of sodium selenite supplementation as an antioxidant therapy in adolescent BD rats in order to analyze Se homeostasis implication during BD exposure, oxidative balance, apoptosis and inflammation, mainly in liver, kidney, and heart. These biomolecular changes and the cardiovascular function will be analyzed. Se supplementation therapies could be a good strategy to prevent the oxidation, inflammation and apoptosis generated in tissues by BD during adolescence, such as liver, kidney and heart, improving cardiovascular functioning.
Collapse
Affiliation(s)
- María Luisa Ojeda
- Department of Physiology, Faculty of Pharmacy, Seville University, 41012 Seville, Spain
| | - Fátima Nogales
- Department of Physiology, Faculty of Pharmacy, Seville University, 41012 Seville, Spain.
| | | | - Olimpia Carreras
- Department of Physiology, Faculty of Pharmacy, Seville University, 41012 Seville, Spain
| |
Collapse
|
9
|
Haslem L, Hays JM, Hays FA. p66Shc in Cardiovascular Pathology. Cells 2022; 11:cells11111855. [PMID: 35681549 PMCID: PMC9180016 DOI: 10.3390/cells11111855] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/30/2022] [Accepted: 06/01/2022] [Indexed: 02/06/2023] Open
Abstract
p66Shc is a widely expressed protein that governs a variety of cardiovascular pathologies by generating, and exacerbating, pro-apoptotic ROS signals. Here, we review p66Shc’s connections to reactive oxygen species, expression, localization, and discuss p66Shc signaling and mitochondrial functions. Emphasis is placed on recent p66Shc mitochondrial function discoveries including structure/function relationships, ROS identity and regulation, mechanistic insights, and how p66Shc-cyt c interactions can influence p66Shc mitochondrial function. Based on recent findings, a new p66Shc mitochondrial function model is also put forth wherein p66Shc acts as a rheostat that can promote or antagonize apoptosis. A discussion of how the revised p66Shc model fits previous findings in p66Shc-mediated cardiovascular pathology follows.
Collapse
Affiliation(s)
- Landon Haslem
- Biochemistry and Molecular Biology Department, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (L.H.); (J.M.H.)
| | - Jennifer M. Hays
- Biochemistry and Molecular Biology Department, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (L.H.); (J.M.H.)
| | - Franklin A. Hays
- Biochemistry and Molecular Biology Department, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA; (L.H.); (J.M.H.)
- Stephenson Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
- Correspondence:
| |
Collapse
|
10
|
Losartan protects human stem cell-derived cardiomyocytes from angiotensin II-induced alcoholic cardiotoxicity. Cell Death Dis 2022; 8:134. [PMID: 35347130 PMCID: PMC8960777 DOI: 10.1038/s41420-022-00945-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 02/18/2022] [Accepted: 03/14/2022] [Indexed: 11/08/2022]
Abstract
Alcoholic cardiomyopathy (ACM) is a myocardial injury caused by long-term heavy drinking. Existing evidence indicates that high levels of oxidative stress are the key to pathological cardiomyopathy caused by long-term exposure to high concentrations of alcohol, while angiotensin II (AngII) and its type 1 receptor (AT1R) play an important role in excessive drinking. Whether oxidative stress-induced damage in ACM is related to AngII and AT1R is unclear, and the effects of alcohol on the electrophysiology of myocardial cells have not been reported. Most existing studies have used animal models. This study established an in vitro model of ACM based on human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs). The transcriptional profiling of alcohol treatment was performed by RNA-seq analysis. The role of oxidative stress, the expression of nicotinamide adenine dinucleotide phosphate oxidase (NOX), and the role of AngII and AT1R in the overactivation of oxidative stress were studied using fluorescent labeling, Western blotting, and high-content quantitative analysis. Real-time cell analysis(RTCA) and microelectrode array (MEA) were used to continuously monitor myocardial beating, observe the effects of alcohol on myocardial electrophysiological activity, and clarify the protective effects of the AT1R blocker losartan on ACM. We found that AngII and AT1R contribute to the effects of alcohol on the myocardium through oxidative stress damage, the mechanism of which may be achieved by regulating NOX.
Collapse
|
11
|
Ojeda ML, Sobrino P, Rua RM, Gallego-Lopez MDC, Nogales F, Carreras O. Selenium, a dietary-antioxidant with cardioprotective effects, prevents the impairments in heart rate and systolic blood pressure in adolescent rats exposed to binge drinking treatment. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2021; 47:680-693. [PMID: 34582310 DOI: 10.1080/00952990.2021.1973485] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Binge drinking (BD) during adolescence is related to cardiovascular alterations. Selenium (Se) is an essential trace element with antioxidant, anti-inflammatory and antiapoptotic properties, essential for correct heart function. OBJECTIVES To study the protective cardiovascular effects of selenium in adolescent rats exposed to a BD-like procedure. METHODS 32 adolescent male rats exposed to an intraperitoneally BD-like model or not, and supplemented with 0.4ppm of selenite or not, were divided into 4 groups: control, alcohol, control-selenium and alcohol-selenium. Blood pressure and heart rate (HR) were determined after experimentation. Se deposits, oxidative balance and the expression of glutathione peroxidases (GPxs), NF-kB and caspase-3 were measured in the heart. Also, DNA instability in rat lymphocytes and serum vascular markers were determined. Statistical analysis was performed with the ANOVA model. RESULTS The BD-like model depleted Se heart deposits (p < .01), decreased GPx activity (p < .01) and GPx1 (p < .001) and GPx4 (p < .05) expression, increased NF-kB (p < .01), caspase-3 (p < .001) expression, and generated oxidation in myocytes. Outside the heart, the BD-like model caused double-strand breaks in lymphocyte DNA and increased all the vascular markers measured. These cardiovascular alterations were related to higher systolic (p < .001) and diastolic (p < .05) blood pressure and HR (p < .05). In the heart, Se supplementation in BD-exposed rats significantly increased Se deposits (p < .001) and improved oxidative balance and vascular damage, including increased GPxs and decreased NF-kB and caspase-3 activation, consequently decreasing systolic (p < .05) blood pressure and HR (p < .01). CONCLUSIONS Se supplementation presents cardioprotective effects since it reversed HR and systolic blood pressure observed in BD-exposed adolescent rats.
Collapse
Affiliation(s)
- M Luisa Ojeda
- Department of Physiology, Faculty of Pharmacy, Seville University, Seville, Spain
| | - Paula Sobrino
- Department of Physiology, Faculty of Pharmacy, Seville University, Seville, Spain
| | - Rui Manuel Rua
- Faculty of Health Sciences, University Fernando Pessoa, Porto, Portugal
| | | | - Fátima Nogales
- Department of Physiology, Faculty of Pharmacy, Seville University, Seville, Spain
| | - Olimpia Carreras
- Department of Physiology, Faculty of Pharmacy, Seville University, Seville, Spain
| |
Collapse
|
12
|
Tian G, Yu Y, Deng H, Yang L, Shi X, Yu B. Empagliflozin alleviates ethanol-induced cardiomyocyte injury through inhibition of mitochondrial apoptosis via a SIRT1/PTEN/Akt pathway. Clin Exp Pharmacol Physiol 2021; 48:837-845. [PMID: 33527532 DOI: 10.1111/1440-1681.13470] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 01/12/2021] [Indexed: 01/20/2023]
Abstract
Ethanol-induced myocardial injury involves multiple pathophysiological processes including apoptosis. Empagliflozin (EMPA), is a novel hypoglycaemic drug which possesses multiple pharmacologically relevant protective effects, including anti-apoptotic, anti-inflammatory and antioxidant effects. However, whether EMPA treatment has a protective effect on ethanol-induced myocardial injury has not been assessed, to the best of our knowledge. Therefore, the aim of this study was to determine the effect of EMPA treatment on ethanol-induced myocardial injury and the underlying mechanism. An ethanol-induced myocardial injury model was established by culturing H9c2 cells treated with 200 mmol/L ethanol for 24 hours, and additional groups of ethanol treated cells were also treated with EMPA with or without SIRT1 inhibitors prior to ethanol treatment. Cell viability and apoptosis were assessed using a CCK-8 assay and flow cytometry, respectively. The expression of apoptosis-related proteins was assessed using western blotting. The results showed that EMPA pretreatment resulted in increased cell viability and a decrease in LDH activity. Moreover, EMPA pretreatment significantly reduced apoptosis of cardiomyocytes, and reduced the expression of cleaved caspase 3. Furthermore, EMPA increased the expression of SIRT1, increased the phosphorylation levels of Akt, and reduced the expression of PTEN. EMPA also reduced ethanol-induced mitochondrial apoptosis, increasing the Bcl-2/Bax ratio and the mitochondrial membrane potential. However, the cardioprotective effects of EMPA were abrogated when cells were pretreated with a SIRT1 inhibitor. In conclusion, EMPA can alleviate ethanol-induced myocardial injury by inhibiting mitochondrial apoptosis via the SIRT1/PTEN/Akt pathway. Therefore, EMPA may be a novel target for treatment of ethanol-induced myocardial injury.
Collapse
Affiliation(s)
- Ge Tian
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, China
- Department of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Yang Yu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hanyu Deng
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Liu Yang
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiaojing Shi
- Department of Cardiology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Bo Yu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, China
| |
Collapse
|
13
|
Wang W, Liu T, Liu Y, Yu L, Yan X, Weng W, Lu X, Zhang C. Astaxanthin attenuates alcoholic cardiomyopathy via inhibition of endoplasmic reticulum stress-mediated cardiac apoptosis. Toxicol Appl Pharmacol 2021; 412:115378. [PMID: 33352188 DOI: 10.1016/j.taap.2020.115378] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/11/2020] [Accepted: 12/16/2020] [Indexed: 12/13/2022]
Abstract
Chronic excessive ethanol consumption is associated with a high incidence of mortality due to ethanol-induced dilated cardiomyopathy, known as alcoholic cardiomyopathy (ACM). Mechanistic studies have demonstrated that apoptosis is key to the pathogenesis of ACM, and endoplasmic reticulum (ER) stress-associated apoptosis contributes to various ethanol-related diseases. Astaxanthin (AST) is a natural carotenoid that exerts an anti-ER stress effect. Importantly, strong evidence has shown that AST induces beneficial effects in various cardiovascular diseases. The present study aimed to investigate whether AST induces beneficial effects on ACM by suppressing cardiac apoptosis mediated by ER stress. We showed that after 2 months of chronic excessive ethanol consumption, mice displayed obvious cardiac dysfunction and morphological changes associated with increased fibrosis, oxidative stress, ER stress and apoptosis. However, cardiac damage above was attenuated in response to AST treatment. The cardioprotective effect of AST against ethanol toxicity was also confirmed in both H9c2 cells and primary cardiomyocytes, indicating that AST-induced protection directly targets cardiomyocytes. Both in vivo and in vitro studies showed that AST inhibited all three ER stress signaling pathways activated by ethanol. Furthermore, administration of the ER stress inhibitor sodium 4-phenylbutyrate (4-PBA) strongly suppressed ethanol-induced cardiomyocyte damage. Interestingly, AST induced further anti-apoptotic effects once co-treated with 4-PBA, indicating that AST protects the heart from ACM partially by attenuating ER stress, but other mechanisms still exist. This study highlights that administration of AST ablated chronic excessive ethanol consumption-induced cardiomyopathy by suppressing cardiac ER stress and subsequent apoptosis.
Collapse
MESH Headings
- Animals
- Antioxidants/pharmacology
- Apoptosis/drug effects
- Apoptosis Regulatory Proteins/metabolism
- Cardiomyopathy, Alcoholic/etiology
- Cardiomyopathy, Alcoholic/metabolism
- Cardiomyopathy, Alcoholic/physiopathology
- Cardiomyopathy, Alcoholic/prevention & control
- Cell Line
- Disease Models, Animal
- Endoplasmic Reticulum Stress/drug effects
- Ethanol
- Fibrosis
- Male
- Mice, Inbred C57BL
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- Oxidative Stress/drug effects
- Rats
- Signal Transduction
- Ventricular Function, Left/drug effects
- Ventricular Remodeling/drug effects
- Xanthophylls/pharmacology
- Mice
Collapse
Affiliation(s)
- Wenhan Wang
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China; School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Tinghao Liu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China; School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Yuanyuan Liu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China; School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Lechu Yu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaoqing Yan
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China
| | - Wenya Weng
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xuemian Lu
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
| | - Chi Zhang
- Ruian Center of Chinese-American Research Institute for Diabetic Complications, the Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China; School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, China.
| |
Collapse
|
14
|
Hirschhäuser C, Sydykov A, Wolf A, Esfandiary A, Bornbaum J, Kutsche HS, Boengler K, Sommer N, Schreckenberg R, Schlüter KD, Weissmann N, Schermuly R, Schulz R. Lack of Contribution of p66shc to Pressure Overload-Induced Right Heart Hypertrophy. Int J Mol Sci 2020; 21:ijms21249339. [PMID: 33302436 PMCID: PMC7762598 DOI: 10.3390/ijms21249339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/02/2020] [Accepted: 12/03/2020] [Indexed: 11/25/2022] Open
Abstract
The leading cause of death in pulmonary arterial hypertension (PAH) is right ventricular (RV) failure (RVF). Reactive oxygen species (ROS) have been suggested to play a role in the development of RV hypertrophy (RVH) and the transition to RVF. The hydrogen peroxide-generating protein p66shc has been associated with left ventricular (LV) hypertrophy but its role in RVH is unclear. The purpose of this study was to determine whether genetic deletion of p66shc affects the development and/or progression of RVH and RVF in the pulmonary artery banding (PAB) model of RV pressure overload. The impact of p66shc on mitochondrial ROS formation, RV cardiomyocyte function, as well as on RV morphology and function were studied three weeks after PAB or sham operation. PAB in wild type mice did not affect mitochondrial ROS production or RV cardiomyocyte function, but induced RVH and impaired cardiac function. Genetic deletion of p66shc did also not alter basal mitochondrial ROS production or RV cardiomyocyte function, but impaired RV cardiomyocyte shortening was observed following PAB. The development of RVH and RVF following PAB was not affected by p66shc deletion. Thus, our data suggest that p66shc-derived ROS are not involved in the development and progression of RVH or RVF in PAH.
Collapse
Affiliation(s)
- Christine Hirschhäuser
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
- Correspondence: ; Tel.: +49-641-99-47252
| | - Akylbek Sydykov
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Annemarie Wolf
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Azadeh Esfandiary
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Julia Bornbaum
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Hanna Sarah Kutsche
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Kerstin Boengler
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Natascha Sommer
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Rolf Schreckenberg
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Klaus-Dieter Schlüter
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| | - Norbert Weissmann
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Ralph Schermuly
- Excellence Cluster Cardiopulmonary System (ECCPS), Justus-Liebig-Universität, 35392 Gießen, Germany; (A.S.); (A.E.); (N.S.); (N.W.); (R.S.)
| | - Rainer Schulz
- Physiologisches Institut, Justus-Liebig-Universität, 35392 Gießen, Germany; (A.W.); (J.B.); (H.S.K.); (K.B.); (R.S.); (K.-D.S.); (R.S.)
| |
Collapse
|
15
|
Rampoldi A, Singh M, Wu Q, Duan M, Jha R, Maxwell JT, Bradner JM, Zhang X, Saraf A, Miller GW, Gibson G, Brown LA, Xu C. Cardiac Toxicity From Ethanol Exposure in Human-Induced Pluripotent Stem Cell-Derived Cardiomyocytes. Toxicol Sci 2020; 169:280-292. [PMID: 31059573 DOI: 10.1093/toxsci/kfz038] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Alcohol use prior to and during pregnancy remains a significant societal problem and can lead to developmental fetal abnormalities including compromised myocardia function and increased risk for heart disease later in life. Alcohol-induced cardiac toxicity has traditionally been studied in animal-based models. These models have limitations due to physiological differences from human cardiomyocytes (CMs) and are also not suitable for high-throughput screening. We hypothesized that human-induced pluripotent stem cell-derived CMs (hiPSC-CMs) could serve as a useful tool to study alcohol-induced cardiac defects and/or toxicity. In this study, hiPSC-CMs were treated with ethanol at doses corresponding to the clinically relevant levels of alcohol intoxication. hiPSC-CMs exposed to ethanol showed a dose-dependent increase in cellular damage and decrease in cell viability, corresponding to increased production of reactive oxygen species. Furthermore, ethanol exposure also generated dose-dependent increased irregular Ca2+ transients and contractility in hiPSC-CMs. RNA-seq analysis showed significant alteration in genes belonging to the potassium voltage-gated channel family or solute carrier family, partially explaining the irregular Ca2+ transients and contractility in ethanol-treated hiPSC-CMs. RNA-seq also showed significant upregulation in the expression of genes associated with collagen and extracellular matrix modeling, and downregulation of genes involved in cardiovascular system development and actin filament-based process. These results suggest that hiPSC-CMs can be a novel and physiologically relevant system for the study of alcohol-induced cardiac toxicity.
Collapse
Affiliation(s)
- Antonio Rampoldi
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Monalisa Singh
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Qingling Wu
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia
| | - Meixue Duan
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia
| | - Rajneesh Jha
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Joshua T Maxwell
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Joshua M Bradner
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | | | - Anita Saraf
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.,Division of Cardiology, Emory University School of Medicine, Atlanta, Georgia
| | - Gary W Miller
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Greg Gibson
- School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia
| | - Lou Ann Brown
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Chunhui Xu
- Division of Pediatric Cardiology, Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia
| |
Collapse
|
16
|
Flavin Oxidase-Induced ROS Generation Modulates PKC Biphasic Effect of Resveratrol on Endothelial Cell Survival. Biomolecules 2019; 9:biom9060209. [PMID: 31151226 PMCID: PMC6628153 DOI: 10.3390/biom9060209] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 05/22/2019] [Accepted: 05/25/2019] [Indexed: 12/26/2022] Open
Abstract
Background: Dietary intake of natural antioxidants is thought to impart protection against oxidative-associated cardiovascular diseases. Despite many in vivo studies and clinical trials, this issue has not been conclusively resolved. Resveratrol (RES) is one of the most extensively studied dietary polyphenolic antioxidants. Paradoxically, we have previously demonstrated that high RES concentrations exert a pro-oxidant effect eventually elevating ROS levels leading to cell death. Here, we further elucidate the molecular determinants underpinning RES-induced oxidative cell death. Methods: Using human umbilical vein endothelial cells (HUVECs), the effect of increasing concentrations of RES on DNA synthesis and apoptosis was studied. In addition, mRNA and protein levels of cell survival or apoptosis genes, as well as protein kinase C (PKC) activity were determined. Results: While high concentrations of RES reduce PKC activity, inhibit DNA synthesis and induce apoptosis, low RES concentrations elicit an opposite effect. This biphasic concentration-dependent effect (BCDE) of RES on PKC activity is mirrored at the molecular level. Indeed, high RES concentrations upregulate the proapoptotic Bax, while downregulating the antiapoptotic Bcl-2, at both mRNA and protein levels. Similarly, high RES concentrations downregulate the cell cycle progression genes, c-myc, ornithine decarboxylase (ODC) and cyclin D1 protein levels, while low RES concentrations display an increasing trend. The BCDE of RES on PKC activity is abrogated by the ROS scavenger Tempol, indicating that this enzyme acts downstream of the RES-elicited ROS signaling. The RES-induced BCDE on HUVEC cell cycle machinery was also blunted by the flavin inhibitor diphenyleneiodonium (DPI), implicating flavin oxidase-generated ROS as the mechanistic link in the cellular response to different RES concentrations. Finally, PKC inhibition abrogates the BCDE elicited by RES on both cell cycle progression and pro-apoptotic gene expression in HUVECs, mechanistically implicating PKC in the cellular response to different RES concentrations. Conclusions: Our results provide new molecular insight into the impact of RES on endothelial function/dysfunction, further confirming that obtaining an optimal benefit of RES is concentration-dependent. Importantly, the BCDE of RES could explain why other studies failed to establish the cardio-protective effects mediated by natural antioxidants, thus providing a guide for future investigation looking at cardio-protection by natural antioxidants.
Collapse
|
17
|
p66Shc activation promotes increased oxidative phosphorylation and renders CNS cells more vulnerable to amyloid beta toxicity. Sci Rep 2018; 8:17081. [PMID: 30459314 PMCID: PMC6244282 DOI: 10.1038/s41598-018-35114-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 10/28/2018] [Indexed: 12/26/2022] Open
Abstract
A key pathological feature of Alzheimer's disease (AD) is the accumulation of the neurotoxic amyloid beta (Aβ) peptide within the brains of affected individuals. Previous studies have shown that neuronal cells selected for resistance to Aβ toxicity display a metabolic shift from mitochondrial-dependent oxidative phosphorylation (OXPHOS) to aerobic glycolysis to meet their energy needs. The Src homology/collagen (Shc) adaptor protein p66Shc is a key regulator of mitochondrial function, ROS production and aging. Moreover, increased expression and activation of p66Shc promotes a shift in the cellular metabolic state from aerobic glycolysis to OXPHOS in cancer cells. Here we evaluated the hypothesis that activation of p66Shc in CNS cells promotes both increased OXPHOS and enhanced sensitivity to Aβ toxicity. The effect of altered p66Shc expression on metabolic activity was assessed in rodent HT22 and B12 cell lines of neuronal and glial origin respectively. Overexpression of p66Shc repressed glycolytic enzyme expression and increased both mitochondrial electron transport chain activity and ROS levels in HT22 cells. The opposite effect was observed when endogenous p66Shc expression was knocked down in B12 cells. Moreover, p66Shc activation in both cell lines increased their sensitivity to Aβ toxicity. Our findings indicate that expression and activation of p66Shc renders CNS cells more sensitive to Aβ toxicity by promoting mitochondrial OXPHOS and ROS production while repressing aerobic glycolysis. Thus, p66Shc may represent a potential therapeutically relevant target for the treatment of AD.
Collapse
|
18
|
Cheng Y, Chao J, Dai D, Dai Y, Zhu D, Liu B. AQP4-knockout aggravation of isoprenaline-induced myocardial injury is mediated by p66Shc and endoplasmic reticulum stress. Clin Exp Pharmacol Physiol 2018; 44:1106-1115. [PMID: 28688153 DOI: 10.1111/1440-1681.12812] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/13/2017] [Accepted: 06/22/2017] [Indexed: 12/14/2022]
Abstract
Aquaporin 4 (AQP4) is a type of water channel protein that maintains the water balance of cardiomyocytes. However, the physiological role of AQP4 in cardiovascular disease is poorly understood. We wanted to explore whether p66Shc and endoplasmic reticulum stress participates in AQP4 knockout (KO)-mediated cardiac injury. There were two types of mice: AQP4 knockout and wild-type mice. Each type was randomly divided into three groups: Control group, isoprenaline stimulation group (ISO, 1 mg/kg, s.c., 5 days), and apocynin treatment group (APO, 100 mg/kg, p.o., 3 days). H9c2 rat cardiomyocytes were cultured for RNA interference of AQP4. Results showed increased left ventricular weight index and more severe myocardial inflammation were induced in AQP4 knockout mice relative to wild-type mice, accompanied by significantly increased levels of the oxidative stress biomarkers MDA and NOX4. In addition, the expressions of p66Shc, ER stress markers PERK, GRP78 and CHOP and proinflammatory factors such as ETA , IL6 and TNFα were upregulated in the myocardium of AQP4 knockout mice or AQP4 siRNA treated cardiomyocytes, whereas CASQ2 was downregulated. ISO stimulation aggravated these abnormalities, which were significantly attenuated by apocynin. This study showed that AQP4 knockout mice were susceptible to cardiac injury induced by ISO. The mechanism was closely connected with p66Shc and proinflammatory factors. Endoplasmic reticulum stress was also involved in the pathological process.
Collapse
Affiliation(s)
- Yusi Cheng
- Institute of Nephrology, Medical School of Southeast University, Nanjing, China.,Department of Physiology, Medical School of Southeast University, Nanjing, China
| | - Jie Chao
- Department of Physiology, Medical School of Southeast University, Nanjing, China
| | - Dezai Dai
- Research Division of Pharmacology, China Pharmaceutical University, Nanjing, China
| | - Yin Dai
- Research Division of Pharmacology, China Pharmaceutical University, Nanjing, China
| | - Dongdong Zhu
- Institute of Nephrology, Medical School of Southeast University, Nanjing, China
| | - Bicheng Liu
- Institute of Nephrology, Medical School of Southeast University, Nanjing, China
| |
Collapse
|
19
|
p66Shc Mediates Mitochondrial Dysfunction Dependent on PKC Activation in Airway Epithelial Cells Induced by Cigarette Smoke. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5837123. [PMID: 29849902 PMCID: PMC5925171 DOI: 10.1155/2018/5837123] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 02/08/2018] [Accepted: 02/28/2018] [Indexed: 12/02/2022]
Abstract
Airway epithelial mitochondrial injury plays a critical role in the pathogenesis of chronic obstructive pulmonary disease (COPD). The p66Shc adaptor protein is a newly recognized mediator of mitochondrial dysfunction. However, little is known about the effect of p66Shc on airway epithelial damage in the development of COPD. The aim of the present study is to investigate the roles of p66Shc and its upstream regulators in the mitochondrial injury of airway epithelial cells (Beas-2b) induced by cigarette smoke extract (CSE). Our present study revealed that CSE increased p66Shc expression and its mitochondrial translocation in concentration and time-dependent manners in airway epithelial cells. And p66Shc siRNA significantly attenuated mitochondrial dysfunction and cell injury when airway epithelial cells were stimulated with 7.5% CSE. The total and phosphorylated expression of PKCβ and PKCδ was significantly increased associated with mitochondrial dysfunction and cell injury when airway epithelial cells were exposed to 7.5% CSE. The pretreatments with pharmacological inhibitors of PKCβ and PKCδ could notably suppress p66Shc phosphorylation and its mitochondrial translocation and protect the mitochondria and cells against oxidative damage when airway epithelial cells were incubated with 7.5% CSE. These data suggest that a novel PKCβ/δ-p66Shc signaling pathway may be involved in the pathogenesis of COPD and other oxidative stress-associated pulmonary diseases and provide a potential therapeutic target for these diseases.
Collapse
|
20
|
Zhou C, Huang J, Li Q, Zhan C, Xu X, Zhang X, Ai D, Zhu Y, Wen Z, Wang DW. CYP2J2-derived EETs attenuated ethanol-induced myocardial dysfunction through inducing autophagy and reducing apoptosis. Free Radic Biol Med 2018; 117:168-179. [PMID: 29427791 DOI: 10.1016/j.freeradbiomed.2018.02.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 01/16/2018] [Accepted: 02/05/2018] [Indexed: 12/19/2022]
Abstract
Chronic excessive drinking leads to myocardial contractile dysfunction and dilated cardiomyopathy, where ethanol toxicity plays an essential role. Cytochrome P450 (CYP) epoxygenases metabolize arachidonic acids to form epoxyeicosatrienoic acids (EETs), which exert beneficial roles in the cardiovascular system, but their role in alcoholic cardiomyopathy is elusive. This study was designed to evaluate the effects and mechanisms of CYP2J2 gene delivery on ethanol-induced myocardial dysfunction with focus on autophagy and apoptosis. C57BL/6 J mice were challenged with a 4% Lieber-DeCarli ethanol liquid diet for 8 weeks, before which rAAV9-CYP2J2 was injected via the tail vein. Cardiac function was assessed using echocardiography, hemodynamic measurement, and cardiac histology. The results showed that chronic ethanol intake led to cardiac dilation, contractile dysfunction, cardiomyocyte hypertrophy, oxidative stress, and cardiomyocyte apoptosis, while CYP2J2 overexpression ameliorated these effects. Additionally, chronic ethanol consumption triggered myocardial autophagosome formation, but impaired autophagic flux via disrupting autophagosome-lysosome fusion, as evidenced by increased LC3 II/I, Beclin-1 and SQSTM1 levels, but reduced LAMP-2 expression. Interestingly, rAAV9-CYP2J2 treatment exerted cardioprotection via restoring autophagic flux in the alcoholic myocardium. Similarly, exogenous 11,12-EET addition significantly restored ethanol-induced neonatal rat cardiomyocyte autophagic flux impairment and inhibited apoptosis, both of which were mediated by AMPK/mTOR signaling pathway in vitro. In conclusion, our data suggest that CYP2J2-derived EETs attenuate ethanol-induced myocardial dysfunction through inducing autophagy and reducing apoptosis.
Collapse
Affiliation(s)
- Chi Zhou
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Jin Huang
- Division of Hematology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430030, China
| | - Qing Li
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Chenao Zhan
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Xizhen Xu
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Xu Zhang
- Tianjin Key Laboratory of Metabolic Diseases, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin 300070, China
| | - Ding Ai
- Tianjin Key Laboratory of Metabolic Diseases, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin 300070, China
| | - Yi Zhu
- Tianjin Key Laboratory of Metabolic Diseases, Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin 300070, China
| | - Zheng Wen
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China.
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, and Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China.
| |
Collapse
|
21
|
Guo X, Chen M, Zeng H, Liu P, Zhu X, Zhou F, Liu J, Zhang J, Dong Z, Tang Y, Gao C, Yao P. Quercetin Attenuates Ethanol-Induced Iron Uptake and Myocardial Injury by Regulating the Angiotensin II-L-Type Calcium Channel. Mol Nutr Food Res 2018; 62. [PMID: 29266790 DOI: 10.1002/mnfr.201700772] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/19/2017] [Indexed: 01/19/2023]
Abstract
SCOPE Increased iron deposition in the myocardium in alcoholics may lead to increased risk of cardiac dysfunction. Quercetin has been demonstrated to quench production of intracellular free iron-induced -OH, but the effect of quercetin in ethanol-induced cardiac damage remains unclear. This study aims to explore whether quercetin attenuates ethanol-induced iron uptake and myocardial injury by regulating angiotensin II-L-type voltage-dependent Ca2+ channel (Ang II-LTCC). METHODS AND RESULTS Adult male C57BL/6J mice are isocalorically pair-fed either a regular or ethanol-containing Lieber De Carli liquid diets supplemented with either quercetin (100 mg kg-1 bw) or desferrioxamine mesylate (DFO, 100 mg kg-1 bw) for 15 weeks. Quercetin alleviated ethanol-induced histopathological changes, creatine kinase isoenzyme release, Ang II secretion, ROS generation, total cardiac iron, and labile iron level. Ethanol exposure or quercetin intervention fails to regulate traditional iron transporters except LTCC. LTCC is upregulated by ethanol and inhibited by quercetin. In H9C2 cell, LTCC is increased by ethanol (100 mm) and/or Ang II (1 μm) concomitant with iron disorders and oxidative stress. This effect is partially normalized by quercetin (50 μm), nifedipine (LTCC inhibitor, 15 μm), or losartan (Ang II receptor antagonist, 100 μm). CONCLUSION Alcohol-induced cardiac injury is associated with excessive NTBI uptake mediated by Ang II-LTCC activation which may be mediated by quercetin against ethanol cardiotoxicity.
Collapse
Affiliation(s)
- Xiaoping Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Man Chen
- Wuhan Centers for Disease Prevention and Control, Wuhan, China
| | - Hongmei Zeng
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peiyi Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xinghong Zhu
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Zhou
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingjing Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhuangzhuang Dong
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuhan Tang
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chao Gao
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ping Yao
- Department of Nutrition and Food Hygiene, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Hubei Key Laboratory of Food Nutrition and Safety, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Ministry of Education Key Laboratory of Environment, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
22
|
Wright KD, Staruschenko A, Sorokin A. Role of adaptor protein p66Shc in renal pathologies. Am J Physiol Renal Physiol 2017; 314:F143-F153. [PMID: 28978535 DOI: 10.1152/ajprenal.00414.2017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
p66Shc is one of the three adaptor proteins encoded by the Shc1 gene, which are expressed in many organs, including the kidney. Recent studies shed new light on several key questions concerning the signaling mechanisms mediated by p66Shc. The central goal of this review article is to summarize recent findings on p66Shc and the role it plays in kidney physiology and pathology. This article provides a review of the various mechanisms whereby p66Shc has been shown to function within the kidney through a wide range of actions. The mitochondrial and cytoplasmic signaling of p66Shc, as it relates to production of reactive oxygen species (ROS) and renal pathologies, is further discussed.
Collapse
Affiliation(s)
- Kevin D Wright
- Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin.,Department of Medicine, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Alexander Staruschenko
- Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin.,Department of Physiology, Medical College of Wisconsin , Milwaukee, Wisconsin
| | - Andrey Sorokin
- Cardiovascular Center, Medical College of Wisconsin , Milwaukee, Wisconsin.,Department of Medicine, Medical College of Wisconsin , Milwaukee, Wisconsin
| |
Collapse
|
23
|
Steiner JL, Lang CH. Etiology of alcoholic cardiomyopathy: Mitochondria, oxidative stress and apoptosis. Int J Biochem Cell Biol 2017; 89:125-135. [PMID: 28606389 DOI: 10.1016/j.biocel.2017.06.009] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 06/07/2017] [Accepted: 06/08/2017] [Indexed: 12/16/2022]
Abstract
Putative mechanisms leading to the development of alcoholic cardiomyopathy (ACM) include the interrelated cellular processes of mitochondria metabolism, oxidative stress and apoptosis. As mitochondria fuel the constant energy demands of this continually contracting tissue, it is not surprising that alcohol-induced molecular changes in this organelle contribute to cardiac dysfunction and ACM. As the causal relationship of these processes with ACM has already been established, the primary objective of this review is to provide an update of the experimental findings to more completely understand the aforementioned mechanisms. Accordingly, recent data indicate that alcohol impairs mitochondria function assessed by membrane potential and respiratory chain activity. Indictors of oxidative stress including superoxide dismutase, glutathione metabolites and malondialdehyde are also adversely affected by alcohol oftentimes in a sex-dependent manner. Additionally, myocardial apoptosis is increased based on assessment of TUNEL staining and caspase activity. Recent work has also emerged linking alcohol-induced oxidative stress with apoptosis providing new insight on the codependence of these interrelated mechanisms in ACM. Attention is also given to methodological differences including the dose of alcohol, experimental model system and the use of males versus females to highlight inconsistencies and areas that would benefit from establishment of a consistent model.
Collapse
Affiliation(s)
- Jennifer L Steiner
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, United States.
| | - Charles H Lang
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, 500 University Drive, Hershey, PA 17033, United States.
| |
Collapse
|
24
|
Di Lisa F, Giorgio M, Ferdinandy P, Schulz R. New aspects of p66Shc in ischaemia reperfusion injury and other cardiovascular diseases. Br J Pharmacol 2017; 174:1690-1703. [PMID: 26990284 PMCID: PMC5446581 DOI: 10.1111/bph.13478] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/29/2016] [Accepted: 03/09/2016] [Indexed: 12/13/2022] Open
Abstract
Although reactive oxygen species (ROS) act as crucial factors in the onset and progression of a wide array of diseases, they are also involved in numerous signalling pathways related to cell metabolism, growth and survival. ROS are produced at various cellular sites, and it is generally agreed that mitochondria generate the largest amount, especially those in cardiomyocytes. However, the identification of the most relevant sites within mitochondria, the interaction among the various sources, and the events responsible for the increase in ROS formation under pathological conditions are still highly debated, and far from being clarified. Here, we review the information linking the adaptor protein p66Shc with cardiac injury induced by ischaemia and reperfusion (I/R), including the contribution of risk factors, such as metabolic syndrome and ageing. In response to several stimuli, p66Shc migrates into mitochondria where it catalyses electron transfer from cytochrome c to oxygen resulting in hydrogen peroxide formation. Deletion of p66Shc has been shown to reduce I/R injury as well as vascular abnormalities associated with diabetes and ageing. However, p66Shc-induced ROS formation is also involved in insulin signalling and might contribute to self-endogenous defenses against mild I/R injury. In addition to its role in physiological and pathological conditions, we discuss compounds and conditions that can modulate the expression and activity of p66Shc. LINKED ARTICLES This article is part of a themed section on Redox Biology and Oxidative Stress in Health and Disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.12/issuetoc.
Collapse
Affiliation(s)
- Fabio Di Lisa
- Department of Biomedical Sciences and CNR Neuroscience InstituteUniversity of PadovaPadovaItaly
| | - Marco Giorgio
- Department of Experimental OncologyInstitute of OncologyMilanItaly
| | - Peter Ferdinandy
- Department of Pharmacology and PharmacotherapySemmelweis UniversityBudapestHungary
- Pharmahungary GroupSzegedHungary
| | - Rainer Schulz
- Institut für PhysiologieJustus‐Liebig Universität GiessenGiessenGermany
| |
Collapse
|
25
|
Wang Q, Song JW, Liu Y, Zhao XX. Involvement of Wnt pathway in ethanol-induced inhibition of mouse embryonic stem cell differentiation. Alcohol 2017; 58:13-18. [PMID: 28109343 DOI: 10.1016/j.alcohol.2016.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 11/11/2016] [Accepted: 11/14/2016] [Indexed: 12/30/2022]
Abstract
Ethanol has been reported to have toxicity on embryonic stem cells (ESCs). The present study aims to address the teratogenic effects of ethanol on the growth and cardiac differentiation of ESCs. Mouse embryonic stem D3 cells were employed. 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) and lactate dehydrogenase (LDH) assays were used to determine cytotoxicity. Quantitative real time polymerase chain reaction (qRT-PCR) and Western blotting were used to analyze the expressions of cardiac differentiation-related and Wnt signaling factors. The beating profile of cardiomyocytes was recorded to assess cardiac differentiation. Ethanol induced growth inhibition in both undifferentiated and differentiated ESCs after 5 days of exposure. Ethanol inhibited the loss of pluripotent gene expressions including Nanog, Sox2 and Oct4. The expressions of cardiac markers, Nkx2.5, Mef2c, Tbx5, dHand, αMHC, Cx43 and troponin C1, were suppressed by ethanol treatment. Furthermore, ethanol delayed cardiac differentiation of ESCs till 11 days of differentiation. The expressions of Wnt-related regulators, β-catenin and its target cyclin D1, were downregulated by ethanol. Wnt pathway agonist wnt3a could greatly rescue ethanol-induced inhibition of cardiac differentiation and Wnt-pathway-related protein expressions. These finding suggested that ethanol suppresses mouse ESC differentiation largely by inhibiting Wnt signaling pathway.
Collapse
Affiliation(s)
- Qian Wang
- Department of Cardiology, Changhai Hospital, Second Military Medical University, 168 ChangHai Road, Shanghai 200433, China
| | - Jing-Wen Song
- Department of Cardiology, Changhai Hospital, Second Military Medical University, 168 ChangHai Road, Shanghai 200433, China
| | - Yang Liu
- The Institute of Health Science, Shanghai JiaoTong University School of Medicine, 320 YueYang Road, Shanghai 200031, China
| | - Xian-Xian Zhao
- Department of Cardiology, Changhai Hospital, Second Military Medical University, 168 ChangHai Road, Shanghai 200433, China.
| |
Collapse
|
26
|
Signaling Pathways in Cardiac Myocyte Apoptosis. BIOMED RESEARCH INTERNATIONAL 2016; 2016:9583268. [PMID: 28101515 PMCID: PMC5215135 DOI: 10.1155/2016/9583268] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 11/20/2016] [Indexed: 12/16/2022]
Abstract
Cardiovascular diseases, the number 1 cause of death worldwide, are frequently associated with apoptotic death of cardiac myocytes. Since cardiomyocyte apoptosis is a highly regulated process, pharmacological intervention of apoptosis pathways may represent a promising therapeutic strategy for a number of cardiovascular diseases and disorders including myocardial infarction, ischemia/reperfusion injury, chemotherapy cardiotoxicity, and end-stage heart failure. Despite rapid growth of our knowledge in apoptosis signaling pathways, a clinically applicable treatment targeting this cellular process is currently unavailable. To help identify potential innovative directions for future research, it is necessary to have a full understanding of the apoptotic pathways currently known to be functional in cardiac myocytes. Here, we summarize recent progress in the regulation of cardiomyocyte apoptosis by multiple signaling molecules and pathways, with a focus on the involvement of these pathways in the pathogenesis of heart disease. In addition, we provide an update regarding bench to bedside translation of this knowledge and discuss unanswered questions that need further investigation.
Collapse
|
27
|
The insecticide spinosad induces DNA damage and apoptosis in HEK293 and HepG2 cells. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2016; 812:12-19. [DOI: 10.1016/j.mrgentox.2016.11.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 10/12/2016] [Accepted: 11/02/2016] [Indexed: 01/01/2023]
|
28
|
Curcumin ameliorates alveolar epithelial injury in a rat model of chronic obstructive pulmonary disease. Life Sci 2016; 164:1-8. [DOI: 10.1016/j.lfs.2016.09.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/01/2016] [Accepted: 09/02/2016] [Indexed: 11/23/2022]
|
29
|
Lawler JM, Rodriguez DA, Hord JM. Mitochondria in the middle: exercise preconditioning protection of striated muscle. J Physiol 2016; 594:5161-83. [PMID: 27060608 PMCID: PMC5023703 DOI: 10.1113/jp270656] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 04/01/2016] [Indexed: 12/24/2022] Open
Abstract
Cellular and physiological adaptations to an atmosphere which became enriched in molecular oxygen spurred the development of a layered system of stress protection, including antioxidant and stress response proteins. At physiological levels reactive oxygen and nitrogen species regulate cell signalling as well as intracellular and intercellular communication. Exercise and physical activity confer a variety of stressors on skeletal muscle and the cardiovascular system: mechanical, metabolic, oxidative. Transient increases of stressors during acute bouts of exercise or exercise training stimulate enhancement of cellular stress protection against future insults of oxidative, metabolic and mechanical stressors that could induce injury or disease. This phenomenon has been termed both hormesis and exercise preconditioning (EPC). EPC stimulates transcription factors such as Nrf-1 and heat shock factor-1 and up-regulates gene expression of a cadre of cytosolic (e.g. glutathione peroxidase and heat shock proteins) and mitochondrial adaptive or stress proteins (e.g. manganese superoxide dismutase, mitochondrial KATP channels and peroxisome proliferator activated receptor γ coactivator-1 (PGC-1)). Stress response and antioxidant enzyme inducibility with exercise lead to protection against striated muscle damage, oxidative stress and injury. EPC may indeed provide significant clinical protection against ischaemia-reperfusion injury, Type II diabetes and ageing. New molecular mechanisms of protection, such as δ-opioid receptor regulation and mitophagy, reinforce the notion that mitochondrial adaptations (e.g. heat shock proteins, antioxidant enzymes and sirtuin-1/PGC-1 signalling) are central to the protective effects of exercise preconditioning.
Collapse
Affiliation(s)
- John M Lawler
- Redox Biology & Cell Signalling Laboratory, Department of Health and Kinesiology, Graduate Faculty of Nutrition & Food Science, Texas A&M University, College Station, TX, USA.
| | - Dinah A Rodriguez
- Redox Biology & Cell Signalling Laboratory, Department of Health and Kinesiology, Graduate Faculty of Nutrition & Food Science, Texas A&M University, College Station, TX, USA
| | - Jeffrey M Hord
- Redox Biology & Cell Signalling Laboratory, Department of Health and Kinesiology, Graduate Faculty of Nutrition & Food Science, Texas A&M University, College Station, TX, USA
| |
Collapse
|
30
|
Shi X, Li Y, Hu J, Yu B. Tert-butylhydroquinone attenuates the ethanol-induced apoptosis of and activates the Nrf2 antioxidant defense pathway in H9c2 cardiomyocytes. Int J Mol Med 2016; 38:123-30. [PMID: 27220726 PMCID: PMC4899004 DOI: 10.3892/ijmm.2016.2605] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 05/13/2016] [Indexed: 12/26/2022] Open
Abstract
Tert-butylhydroquinone (tBHQ), an inducer of nuclear factor erythroid 2-related factor 2 (Nrf2), has been demonstrated to attenuate oxidative stress-induced injury and the apoptosis of human neural stem cells and other cell types. However, whether tBHQ is able to exert a protective effect against oxidative stress and the apoptosis of cardiomyocytes has not yet been determined. Thus, the objective of the present study was to determine whether tBHQ protects H9c2 cardiomyocytes against ethanol-induced apoptosis. For this purpose, four sets of experiments were performed under standard culture conditions as follows: i) untreated control cells; ii) cell treatment with 200 mM ethanol; iii) cell treatment with 5 µM tBHQ; and iv) cell pre-treatment with 5 µM tBHQ for 24 h, followed by medium change and co-culture with 200 mM ethanol containing 5 µM tBHQ for a further 24 h. The viability of the cardiomyocytes was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The levels of intracellular reactive oxygen species (ROS) and apoptosis were assessed by flow cytometry. Protein expression was measured by western blot analysis, and Nrf2 nuclear localization was observed by immunofluorescence. Exposure to ethanol led to a decrease in the protein expression of Nrf2 and its downstream antioxidant enzymes, accompanied by an increase in ROS generation and in the apoptosis of H9c2 cells. Pre-treatment with tBHQ significantly prevented the H9c2 cells from undergoing ethanol-induced apoptosis. tBHQ also increased the expression of B-cell lymphoma-2 (Bcl-2), whereas Bcl-2-associated X protein (Bax) expression was decreased. tBHQ promoted Nrf2 nuclear localization and increased the expression of Nrf2, superoxide dismutase (SOD), catalase (CAT) and heme oxygenase-1 (HO-1), and simultaneously inhibited the ethanol-induced overproduction of intracellular ROS. Therefore, tBHQ confers protection against the ethanol-induced apoptosis of and activates the Nrf2 antioxidant pathway in H9c2 cardiomyocytes.
Collapse
Affiliation(s)
- Xiaojing Shi
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yang Li
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Jun Hu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Bo Yu
- Department of Cardiology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| |
Collapse
|
31
|
Matyas C, Varga ZV, Mukhopadhyay P, Paloczi J, Lajtos T, Erdelyi K, Nemeth BT, Nan M, Hasko G, Gao B, Pacher P. Chronic plus binge ethanol feeding induces myocardial oxidative stress, mitochondrial and cardiovascular dysfunction, and steatosis. Am J Physiol Heart Circ Physiol 2016; 310:H1658-70. [PMID: 27106042 DOI: 10.1152/ajpheart.00214.2016] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 04/15/2016] [Indexed: 12/31/2022]
Abstract
Alcoholic cardiomyopathy in humans develops in response to chronic excessive alcohol consumption; however, good models of alcohol-induced cardiomyopathy in mice are lacking. Herein we describe mouse models of alcoholic cardiomyopathies induced by chronic and binge ethanol (EtOH) feeding and characterize detailed hemodynamic alterations, mitochondrial function, and redox signaling in these models. Mice were fed a liquid diet containing 5% EtOH for 10, 20, and 40 days (d) combined with single or multiple EtOH binges (5 g/kg body wt). Isocalorically pair-fed mice served as controls. Left ventricular (LV) function and morphology were assessed by invasive pressure-volume conductance approach and by echocardiography. Mitochondrial complex (I, II, IV) activities, 3-nitrotyrosine (3-NT) levels, gene expression of markers of oxidative stress (gp91phox, p47phox), mitochondrial biogenesis (PGC1α, peroxisome proliferator-activated receptor α), and fibrosis were examined. Cardiac steatosis and fibrosis were investigated by histological/immunohistochemical methods. Chronic and binge EtOH feeding (already in 10 days EtOH plus single binge group) was characterized by contractile dysfunction (decreased slope of end-systolic pressure-volume relationship and preload recruitable stroke work), impaired relaxation (decreased time constant of LV pressure decay and maximal slope of systolic pressure decrement), and vascular dysfunction (impaired arterial elastance and lower total peripheral resistance). This was accompanied by enhanced myocardial oxidative/nitrative stress (3-NT; gp91phox; p47phox; angiotensin II receptor, type 1a) and deterioration of mitochondrial complex I, II, IV activities and mitochondrial biogenesis, excessive cardiac steatosis, and higher mortality. Collectively, chronic plus binge EtOH feeding in mice leads to alcohol-induced cardiomyopathies (National Institute on Alcohol Abuse and Alcoholism models) characterized by increased myocardial oxidative/nitrative stress, impaired mitochondrial function and biogenesis, and enhanced cardiac steatosis.
Collapse
Affiliation(s)
- Csaba Matyas
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland; Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Zoltan V Varga
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Partha Mukhopadhyay
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Janos Paloczi
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Tamas Lajtos
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Katalin Erdelyi
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Balazs T Nemeth
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Mintong Nan
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Gyorgy Hasko
- Department of Surgery, Rutgers New Jersey Medical School, University Heights, Newark, New Jersey; and
| | - Bin Gao
- Laboratory of Liver Diseases, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
| | - Pal Pacher
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland;
| |
Collapse
|
32
|
Targeting Pin1 Protects Mouse Cardiomyocytes from High-Dose Alcohol-Induced Apoptosis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:4528906. [PMID: 26697133 PMCID: PMC4678095 DOI: 10.1155/2016/4528906] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/19/2015] [Accepted: 08/23/2015] [Indexed: 12/24/2022]
Abstract
Long-term heavy alcohol consumption is considered to be one of the main causes of left ventricular dysfunction in alcoholic cardiomyopathy (ACM). As previously suggested, high-dose alcohol induces oxidation stress and apoptosis of cardiomyocytes. However, the underlying mechanisms are yet to be elucidated. In this study, we found that high-dose alcohol treatment stimulated expression and activity of Pin1 in mouse primary cardiomyocytes. While siRNA-mediated knockdown of Pin1 suppressed alcohol-induced mouse cardiomyocyte apoptosis, overexpression of Pin1 further upregulated the numbers of apoptotic mouse cardiomyocytes. We further demonstrated that Pin1 promotes mitochondria oxidative stress and loss of mitochondrial membrane potential but suppresses endothelial nitric oxide synthase (eNOS) expression in the presence of alcohol. Taken together, our results revealed a pivotal role of Pin1 in regulation of alcohol-induced mouse cardiomyocytes apoptosis by promoting reactive oxygen species (ROS) accumulation and repressing eNOS expression, which could be potential therapeutic targets for ACM.
Collapse
|
33
|
Abstract
The heart and vascular system are susceptible to the harmful effects of alcohol. Alcohol is an active toxin that undergoes widespread diffusion throughout the body, causing multiple synchronous and synergistic effects. Alcohol consumption decreases myocardial contractility and induces arrhythmias and dilated cardiomyopathy, resulting in progressive cardiovascular dysfunction and structural damage. Alcohol, whether at binge doses or a high cumulative lifetime consumption-both of which should be discouraged-is clearly deleterious for the cardiovascular system, increasing the incidence of total and cardiovascular mortality, coronary and peripheral artery disease, heart failure, stroke, hypertension, dyslipidaemia, and diabetes mellitus. However, epidemiological, case-control studies and meta-analyses have shown a U-type bimodal relationship so that low-to-moderate alcohol consumption (particularly of wine or beer) is associated with a decrease in cardiovascular events and mortality, compared with abstention. Potential confounding influences-alcohol-dose quantification, tobacco use, diet, exercise, lifestyle, cancer risk, accidents, and dependence-can affect the results of studies of both low-dose and high-dose alcohol consumption. Mendelian methodological approaches have led to doubts regarding the beneficial cardiovascular effects of alcohol, and the overall balance of beneficial and detrimental effects should be considered when making individual and population-wide recommendations, as reductions in alcohol consumption should provide overall health benefits.
Collapse
|