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Jansen K, Hanusch B, Pross S, Hanff E, Drabert K, Bollenbach A, Dugave I, Carmann C, Siefen RG, Emons B, Juckel G, Legenbauer T, Tsikas D, Lücke T. Enhanced Nitric Oxide (NO) and Decreased ADMA Synthesis in Pediatric ADHD and Selective Potentiation of NO Synthesis by Methylphenidate. J Clin Med 2020; 9:jcm9010175. [PMID: 31936392 PMCID: PMC7019361 DOI: 10.3390/jcm9010175] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/27/2019] [Accepted: 01/04/2020] [Indexed: 12/12/2022] Open
Abstract
Attention deficit hyperactivity disorder (ADHD) is a common pediatric psychiatric disorder, frequently treated with methylphenidate (MPH). Recently, MPH’s cardiovascular safety has been questioned by observational studies describing an increased cardiovascular risk in adults and blood pressure alterations in children. We considered members of the L-arginine (Arg)/nitric oxide (NO) pathway as possible early cardiovascular risk factors in pediatric ADHD children. They include the NO metabolites, nitrite and nitrate, the NO precursor Arg, and asymmetric dimethylarginine (ADMA), an endogenous NO synthase (NOS) inhibitor and a cardiovascular risk factor in adults. We conducted a prospective clinical trial with 42 ADHD children (aged 6–16 years) with (n = 19) and without (n = 23) MPH treatment. Age-matched children without ADHD (n = 43) served as controls. All plasma and urine metabolites were determined by gas chromatography-mass spectrometry. We observed higher plasma nitrite and lower plasma ADMA concentrations in the ADHD children. MPH-treated ADHD children had higher plasma nitrite concentrations than MPH-untreated ADHD children. As NOS activity is basally inhibited by ADMA, MPH treatment seems to have decreased the inhibitory potency of ADMA. Percentiles of systolic blood pressure were higher in MPH-treated ADHD children. The underlying mechanisms and their implications in the MPH therapy of pediatric ADHD with MPH remain to be elucidated in larger cohorts.
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Affiliation(s)
- Kathrin Jansen
- University Children’s Hospital, Ruhr University Bochum, 44791 Bochum, Germany
- Correspondence: ; Tel.: +49-234-5092615
| | - Beatrice Hanusch
- University Children’s Hospital, Ruhr University Bochum, 44791 Bochum, Germany
| | - Saskia Pross
- University Children’s Hospital, Ruhr University Bochum, 44791 Bochum, Germany
- Children’s Hospital, St., Clemens-Hospital Geldern, 47608 Geldern, Germany
| | - Erik Hanff
- Institute of Toxicology, Core Unit Proteomics, Hannover Medical School, 30625 Hannover, Germany
| | - Kathrin Drabert
- Institute of Toxicology, Core Unit Proteomics, Hannover Medical School, 30625 Hannover, Germany
| | - Alexander Bollenbach
- Institute of Toxicology, Core Unit Proteomics, Hannover Medical School, 30625 Hannover, Germany
| | - Irina Dugave
- University Children’s Hospital, Ruhr University Bochum, 44791 Bochum, Germany
- Department of Psychiatry, Alexius/Josef Hospital, 41464 Neuss, Germany
| | - Christina Carmann
- University Children’s Hospital, Ruhr University Bochum, 44791 Bochum, Germany
| | - Rainer Georg Siefen
- University Children’s Hospital, Ruhr University Bochum, 44791 Bochum, Germany
| | - Barbara Emons
- Department of Psychiatry, LWL Institute of Mental Health, LWL University Hospital, Ruhr-University Bochum, 44791 Bochum, Germany
- Department of Psychiatry, LWL University Hospital, Ruhr-University Bochum, 44791 Bochum, Germany
| | - Georg Juckel
- Department of Psychiatry, LWL Institute of Mental Health, LWL University Hospital, Ruhr-University Bochum, 44791 Bochum, Germany
- Department of Psychiatry, LWL University Hospital, Ruhr-University Bochum, 44791 Bochum, Germany
| | - Tanja Legenbauer
- LWL University Hospital Hamm for Child and Adolescent Psychiatry, Psychotherapy and Psychosomatic, Ruhr University Bochum, 59071 Hamm, Germany
| | - Dimitrios Tsikas
- Institute of Toxicology, Core Unit Proteomics, Hannover Medical School, 30625 Hannover, Germany
| | - Thomas Lücke
- University Children’s Hospital, Ruhr University Bochum, 44791 Bochum, Germany
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Midgley AC, Wei Y, Li Z, Kong D, Zhao Q. Nitric-Oxide-Releasing Biomaterial Regulation of the Stem Cell Microenvironment in Regenerative Medicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1805818. [PMID: 31423672 DOI: 10.1002/adma.201805818] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 06/06/2019] [Indexed: 06/10/2023]
Abstract
Stem cell therapy has proven to be an attractive solution for the treatment of degenerative diseases or injury. However, poor cell engraftment and survival within injured tissues limits the successful use of stem cell therapy within the clinical setting. Nitric oxide (NO) is an important signaling molecule involved in various physiological processes. Emerging evidence supports NO's diverse roles in modulating stem cell behavior, including survival, migration, differentiation, and paracrine secretion of proregenerative factors. Thus, there has been a shift in research focus to concentrate efforts on the delivery of therapeutic concentration ranges of NO to the target tissue sites. Combinatory therapies utilizing biomaterials that control NO generation and support stem cell delivery can be holistic and synergistic approaches to significantly improve tissue regeneration. Here, the focus is on recent developments of various therapeutic platforms, engineered to both transport NO and to enhance stem-cell-mediated regeneration of damaged tissues. New and emerging revelations of how the stem cell microenvironment can be regulated by NO-releasing biomaterials are also highlighted.
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Affiliation(s)
- Adam C Midgley
- Rongxiang Xu Center for Regenerative Life Science, College of Life Sciences, Nankai University, Tianjin, 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Yongzhen Wei
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Zongjin Li
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Deling Kong
- Rongxiang Xu Center for Regenerative Life Science, College of Life Sciences, Nankai University, Tianjin, 300071, China
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), College of Life Sciences, Nankai University, Tianjin, 300071, China
| | - Qiang Zhao
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials (Ministry of Education), College of Life Sciences, Nankai University, Tianjin, 300071, China
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Gao W, Ma Y, Lin W. Design of a FRET-based fluorescent probe for the reversible detection of SO 2and formaldehyde in living cells and mice. NEW J CHEM 2020. [DOI: 10.1039/d0nj03071f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Design of a FRET-based fluorescent probe for the reversible detection of SO2and formaldehyde in living cells and mice.
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Affiliation(s)
- Wenjie Gao
- Institute of Fluorescent Probes for Biological Imaging
- School of Chemistry and Chemical Engineering
- School of Materials Science and Engineering
- University of Jinan
- Jinan
| | - Yanyan Ma
- Institute of Fluorescent Probes for Biological Imaging
- School of Chemistry and Chemical Engineering
- School of Materials Science and Engineering
- University of Jinan
- Jinan
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging
- School of Chemistry and Chemical Engineering
- School of Materials Science and Engineering
- University of Jinan
- Jinan
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Jafari S, Hosseini Salekdeh SS, Solouk A, Yousefzadeh M. Electrospun polyethylene terephthalate (PET) nanofibrous conduit for biomedical application. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4768] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sahar Jafari
- Biomedical Engineering DepartmentAmirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | | | - Atefeh Solouk
- Biomedical Engineering DepartmentAmirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Maryam Yousefzadeh
- Textile Engineering DepartmentAmirkabir University of Technology Tehran Iran
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Arauna D, Furrianca M, Espinosa-Parrilla Y, Fuentes E, Alarcón M, Palomo I. Natural Bioactive Compounds As Protectors Of Mitochondrial Dysfunction In Cardiovascular Diseases And Aging. Molecules 2019; 24:molecules24234259. [PMID: 31766727 PMCID: PMC6930637 DOI: 10.3390/molecules24234259] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/05/2019] [Accepted: 09/08/2019] [Indexed: 01/04/2023] Open
Abstract
Diet, particularly the Mediterranean diet, has been considered as a protective factor against the development of cardiovascular diseases, the main cause of death in the world. Aging is one of the major risk factors for cardiovascular diseases, which have an oxidative pathophysiological component, being the mitochondria one of the key organelles in the regulation of oxidative stress. Certain natural bioactive compounds have the ability to regulate oxidative phosphorylation, the production of reactive oxygen species and the expression of mitochondrial proteins; but their efficacy within the mitochondrial physiopathology of cardiovascular diseases has not been clarified yet. The following review has the purpose of evaluating several natural compounds with evidence of mitochondrial effect in cardiovascular disease models, ascertaining the main cellular mechanisms and their potential use as functional foods for prevention of cardiovascular disease and healthy aging.
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Affiliation(s)
- Diego Arauna
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Interdisciplinary Center on Aging, Universidad de Talca, Talca 3460000, Chile; (D.A.); (M.A.)
| | - María Furrianca
- Thematic Task Force on Aging, CUECH Research Network, Santiago 8320000, Chile; (M.F.); (Y.E.-P.)
- Departamento de enfermería, Universidad de Magallanes, Punta Arenas 6200000, Chile
| | - Yolanda Espinosa-Parrilla
- Thematic Task Force on Aging, CUECH Research Network, Santiago 8320000, Chile; (M.F.); (Y.E.-P.)
- Laboratory of Molecular Medicine —LMM, Center for Education, Healthcare and Investigation—CADI, Universidad de Magallanes, Punta Arenas 6200000, Chile
- School of Medicine, Universidad de Magallanes, Punta Arenas 6200000, Chile
| | - Eduardo Fuentes
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Interdisciplinary Center on Aging, Universidad de Talca, Talca 3460000, Chile; (D.A.); (M.A.)
- Thematic Task Force on Aging, CUECH Research Network, Santiago 8320000, Chile; (M.F.); (Y.E.-P.)
- Correspondence: (E.F.); (I.P.)
| | - Marcelo Alarcón
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Interdisciplinary Center on Aging, Universidad de Talca, Talca 3460000, Chile; (D.A.); (M.A.)
- Thematic Task Force on Aging, CUECH Research Network, Santiago 8320000, Chile; (M.F.); (Y.E.-P.)
| | - Iván Palomo
- Thrombosis Research Center, Medical Technology School, Department of Clinical Biochemistry and Immunohaematology, Faculty of Health Sciences, Interdisciplinary Center on Aging, Universidad de Talca, Talca 3460000, Chile; (D.A.); (M.A.)
- Thematic Task Force on Aging, CUECH Research Network, Santiago 8320000, Chile; (M.F.); (Y.E.-P.)
- Correspondence: (E.F.); (I.P.)
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Pan L, Lin Z, Tang X, Tian J, Zheng Q, Jing J, Xie L, Chen H, Lu Q, Wang H, Li Q, Han Y, Ji Y. S-Nitrosylation of Plastin-3 Exacerbates Thoracic Aortic Dissection Formation via Endothelial Barrier Dysfunction. Arterioscler Thromb Vasc Biol 2019; 40:175-188. [PMID: 31694393 DOI: 10.1161/atvbaha.119.313440] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Thoracic aortic dissection (TAD) is a fatal disease that leads to aortic rupture and sudden death. However, little is known about the effect and molecular mechanism of S-nitrosylation (SNO) modifications in TAD formation. Approach and Results: SNO levels were higher in aortic tissues from TAD patients than in those from healthy controls, and PLS3 (plastin-3) SNO was identified by liquid chromatography-tandem mass spectrometry analysis. Furthermore, tail vein administration of endothelial-specific adeno-associated viruses of mutant PLS3-C566A (denitrosylated form) suppressed the development of TAD in mice, but the wild-type PLS3 (S-nitrosylated form) virus did not. Mechanistically, Ang II (angiotensin II)-induced PLS3 SNO enhanced the association of PLS3 with both plectin and cofilin via an iNOS (inducible nitric oxide synthase)-dependent pathway in endothelial cells. The formation of PLS3/plectin/cofilin complex promoted cell migration and tube formation but weakened adherens junction formation in Ang II-treated endothelial cells. Interestingly, denitrosylated form of PLS3 partially mitigated Ang II-induced PLS3/plectin/cofilin complex formation and cell junction disruption. Additionally, the inhibition of iNOS attenuated PLS3 SNO and the association of PLS3 with plectin and cofilin, thereby modulating endothelial barrier function. CONCLUSIONS Our data indicate that protein SNO modification in endothelial cells modulates the progression of aortic aneurysm and dissection. The iNOS-mediated SNO of PLS3 at the Cys566 site promoted its interaction with cofilin and plectin, thus contributing to endothelial barrier disruption and pathological angiogenesis in TAD.
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Affiliation(s)
- Lihong Pan
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Zhe Lin
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Xin Tang
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Jiaxin Tian
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Qiao Zheng
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Jin Jing
- Department of Cardiovascular Center, The Second Affiliated Hospital of Nanjing Medical University, China (J.J., Q.L.)
| | - Liping Xie
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Hongshan Chen
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
| | - Qiulun Lu
- Department of Cardiovascular Center, The Second Affiliated Hospital of Nanjing Medical University, China (J.J., Q.L.)
| | - Hong Wang
- Center for Metabolic Disease Research, Department of Pharmacology, Temple University School of Medicine, Philadelphia, PA (H.W.)
| | - Qingguo Li
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, China (Q.L.)
| | - Yi Han
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, China (Y.H.)
| | - Yong Ji
- From the Key Laboratory of Cardiovascular and Cerebrovascular Medicine, State Key Laboratory of Reproductive Medicine, Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, China (L.P., Z.L., X.T., J.T., Q.Z., L.X., H.C., Y.J.)
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Rivera DE, Ocampo YC, Castro JP, Barrios L, Diaz F, Franco LA. A screening of plants used in Colombian traditional medicine revealed the anti-inflammatory potential of Physalis angulata calyces. Saudi J Biol Sci 2019; 26:1758-1766. [PMID: 31762655 PMCID: PMC6864190 DOI: 10.1016/j.sjbs.2018.05.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/25/2018] [Accepted: 05/31/2018] [Indexed: 12/20/2022] Open
Abstract
The use of natural products by communities from the Colombian Caribbean region to treat health issues, together with biodiversity and geographical features, constitute a great scenery to develop new therapies based on ethnopharmacological heritage. Here, we investigated the anti-inflammatory potential of 10 commonly used plants in Colombian folk medicine, evaluating their effect on nitric oxide (NO) production by LPS-stimulated RAW 264.7 macrophages. The most active plant was evaluated in vivo using 12-O-tetradecanoyl-phorbol-13-acetate (TPA)-induced mouse ear edema, along with its effect on the production of pro-inflammatory mediators in vitro. The extract of Physalis angulata L. calyces showed the highest activity. This extract was fractionated and its dichloromethane fraction (DF) was the most active in vitro, inhibiting the production of NO, prostaglandin E2 (PGE2), interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF)-α and monocyte chemotactic protein (MCP)-1 (CCL2). In vivo, DF showed a significant inhibition of ear edema and myeloperoxidase (MPO) activity, with evident reduction of the leukocyte infiltration into tissue. Our results support the ethnopharmacological use of the selected plants in folk medicine. P. angulata dichloromethane fraction represents a promising source of pharmacological compounds with great potential therapeutic use to treat inflammatory illness.
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Affiliation(s)
- David E. Rivera
- Biological Evaluation of Promising Substances Group, Faculty of Pharmaceutical Sciences, University of Cartagena, 130015 Cartagena, Colombia
| | - Yanet C. Ocampo
- Biological Evaluation of Promising Substances Group, Faculty of Pharmaceutical Sciences, University of Cartagena, 130015 Cartagena, Colombia
| | - Jenny P. Castro
- Biological Evaluation of Promising Substances Group, Faculty of Pharmaceutical Sciences, University of Cartagena, 130015 Cartagena, Colombia
| | - Lía Barrios
- Histopathology Research Group, Faculty of Medicine, University of Cartagena, 130015 Cartagena, Colombia
| | - Fredyc Diaz
- Laboratory for Phytochemical and Pharmacological Research from the University of Cartagena-LIFFUC, University of Cartagena, 130015 Cartagena, Colombia
| | - Luis A. Franco
- Biological Evaluation of Promising Substances Group, Faculty of Pharmaceutical Sciences, University of Cartagena, 130015 Cartagena, Colombia
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Protopapas AA, Vradelis S, Karampitsakos T, Steiropoulos P, Chatzimichael A, Paraskakis E. Elevated Levels of Alveolar Nitric Oxide May Indicate Presence of Small Airway Inflammation in Patients with Inflammatory Bowel Disease. Lung 2019; 197:663-670. [PMID: 31317255 DOI: 10.1007/s00408-019-00253-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 07/09/2019] [Indexed: 12/14/2022]
Abstract
INTRODUCTION Pulmonary manifestations of inflammatory bowel disease (IBD), albeit not rare, are largely overlooked in clinical practice. The role of exhaled nitric oxide (eNO) as an established biological marker of airway inflammation compels us to use it as a tool to investigate the exact nature of these manifestations. METHODS Fractional eNO (FeNO) was measured in multiple flows, and with the use of a mathematical model, alveolar concentration of NO (CANO) and bronchial flux of NO (JawNO) were assessed in 27 patients with IBD [17 with Crohn's disease (CD) and 10 with ulcerative colitis (UC)] and in 39 healthy controls. Carefully selected criteria were used to exclude patients or healthy controls that presented factors considered to be correlated with eNO measurements. Disease activity was measured in Crohn's patients using the CD activity index (CDAI) score and in UC using the partial Mayo score. RESULTS CANO was significantly higher in the IBD group, compared to the control group (p < 0.0001). FeNO was significantly increased in patients with IBD (p = 0.023), while there was no statistical significance found regarding levels of JawNO in patients with IBD (p = 0.106), both compared to controls. There was no significant correlation between any eNO component and markers of disease activity. CONCLUSIONS Alveolar concentration of NO is elevated in patients with IBD, regardless of disease activity. This may suggest that subclinical small airway inflammation is present in patients with IBD, even those with mild or inactive disease.
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Affiliation(s)
- Adonis A Protopapas
- Department of Pediatrics, University Hospital of Alexandroupolis, Democritus University of Thrace, 68100, Alexandroupolis, Greece.
| | - Stergios Vradelis
- Second Department of Internal Medicine, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece
| | - Theodoros Karampitsakos
- Department of Pediatrics, University Hospital of Alexandroupolis, Democritus University of Thrace, 68100, Alexandroupolis, Greece
| | - Paschalis Steiropoulos
- Department of Pneumonology, University Hospital of Alexandroupolis, Democritus University of Thrace, Alexandroupolis, Greece
| | - Athanasios Chatzimichael
- Department of Pediatrics, University Hospital of Alexandroupolis, Democritus University of Thrace, 68100, Alexandroupolis, Greece
| | - Emmanouil Paraskakis
- Department of Pediatrics, University Hospital of Alexandroupolis, Democritus University of Thrace, 68100, Alexandroupolis, Greece
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Protective effect of Xin-Ji-Er-Kang on cardiovascular remodeling in high-salt induced hypertensive mice: Role ofoxidative stress and endothelial dysfunction. Biomed Pharmacother 2019; 115:108937. [DOI: 10.1016/j.biopha.2019.108937] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 04/17/2019] [Accepted: 04/29/2019] [Indexed: 11/18/2022] Open
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Stankowska DL, Dibas A, Li L, Zhang W, Krishnamoorthy VR, Chavala SH, Nguyen TP, Yorio T, Ellis DZ, Acharya S. Hybrid Compound SA-2 is Neuroprotective in Animal Models of Retinal Ganglion Cell Death. Invest Ophthalmol Vis Sci 2019; 60:3064-3073. [PMID: 31348824 DOI: 10.1167/iovs.18-25999] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Determine the toxicity, bioavailability in the retina, and neuroprotective effects of a hybrid antioxidant-nitric oxide donor compound SA-2 against oxidative stress-induced retinal ganglion cell (RGC) death in neurodegenerative animal models. Methods Optic nerve crush (ONC) and ischemia reperfusion (I/R) injury models were used in 12-week-old C57BL/6J mice to mimic conditions of glaucomatous neurodegeneration. Mice were treated intravitreally with either vehicle or SA-2. Retinal thickness was measured by spectral-domain optical coherence tomography (SD-OCT). The electroretinogram and pattern ERG (PERG) were used to assess retinal function. RGC survival was determined by counting RBPMS-positive RGCs and immunohistochemical analysis of superoxide dismutase 1 (SOD1) levels was carried out in the retina sections. Concentrations of SA-2 in the retina and choroid were determined using HPLC and MS. In addition, the direct effect of SA-2 treatment on RGC survival was assessed in ex vivo rat retinal explants under hypoxic (0.5% O2) conditions. Results Compound SA-2 did not induce any appreciable change in retinal thickness, or in a- or b-wave amplitude in naive animals. SA-2 was found to be bioavailable in both the retina and choroid after a single intravitreal injection (2% wt/vol). An increase in SOD1 levels in the retina of mice subjected to ONC and SA-2 treatment, suggests an enhancement in antioxidant activity. SA-2 provided significant (P < 0.05) RGC protection in all three of the tested RGC injury models in rodents. PERG amplitudes were significantly higher in both I/R and ONC mouse eyes following SA-2 treatment (P ≤ 0.001) in comparison with the vehicle and control groups. Conclusions Compound SA-2 was effective in preventing RGC death and loss of function in three different rodent models of acute RGC injury: ONC, I/R, and hypoxia.
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Affiliation(s)
- Dorota L Stankowska
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Adnan Dibas
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Linya Li
- Department of Pharmaceutical Sciences, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Wei Zhang
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Vignesh R Krishnamoorthy
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Sai H Chavala
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Tam Phung Nguyen
- Department of Bioengineering, The University of Texas at Arlington, Arlington, Texas, United States
| | - Thomas Yorio
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Dorette Z Ellis
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, United States
- Department of Pharmaceutical Sciences, University of North Texas Health Science Center, Fort Worth, Texas, United States
| | - Suchismita Acharya
- Department of Pharmacology and Neuroscience, University of North Texas Health Science Center, Fort Worth, Texas, United States
- North Texas Eye Research Institute, University of North Texas Health Science Center, Fort Worth, Texas, United States
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Ponganis PJ. State of the art review: from the seaside to the bedside: insights from comparative diving physiology into respiratory, sleep and critical care. Thorax 2019; 74:512-518. [PMID: 30826734 DOI: 10.1136/thoraxjnl-2018-212136] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 01/20/2019] [Accepted: 01/28/2019] [Indexed: 11/04/2022]
Abstract
Anatomical and physiological adaptations of animals to extreme environments provide insight into basic physiological principles and potential therapies for human disease. In that regard, the diving physiology of marine mammals and seabirds is especially relevant to pulmonary and cardiovascular function, and to the pathology and potential treatment of patients with hypoxaemia and/or ischaemia. This review highlights past and recent progress in the field of comparative diving physiology with emphasis on its potential relevance to human medicine.
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Affiliation(s)
- Paul J Ponganis
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA
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Tejero J, Shiva S, Gladwin MT. Sources of Vascular Nitric Oxide and Reactive Oxygen Species and Their Regulation. Physiol Rev 2019; 99:311-379. [PMID: 30379623 DOI: 10.1152/physrev.00036.2017] [Citation(s) in RCA: 280] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Nitric oxide (NO) is a small free radical with critical signaling roles in physiology and pathophysiology. The generation of sufficient NO levels to regulate the resistance of the blood vessels and hence the maintenance of adequate blood flow is critical to the healthy performance of the vasculature. A novel paradigm indicates that classical NO synthesis by dedicated NO synthases is supplemented by nitrite reduction pathways under hypoxia. At the same time, reactive oxygen species (ROS), which include superoxide and hydrogen peroxide, are produced in the vascular system for signaling purposes, as effectors of the immune response, or as byproducts of cellular metabolism. NO and ROS can be generated by distinct enzymes or by the same enzyme through alternate reduction and oxidation processes. The latter oxidoreductase systems include NO synthases, molybdopterin enzymes, and hemoglobins, which can form superoxide by reduction of molecular oxygen or NO by reduction of inorganic nitrite. Enzymatic uncoupling, changes in oxygen tension, and the concentration of coenzymes and reductants can modulate the NO/ROS production from these oxidoreductases and determine the redox balance in health and disease. The dysregulation of the mechanisms involved in the generation of NO and ROS is an important cause of cardiovascular disease and target for therapy. In this review we will present the biology of NO and ROS in the cardiovascular system, with special emphasis on their routes of formation and regulation, as well as the therapeutic challenges and opportunities for the management of NO and ROS in cardiovascular disease.
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Affiliation(s)
- Jesús Tejero
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh , Pittsburgh, Pennsylvania ; Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania ; Department of Pharmacology and Chemical Biology, University of Pittsburgh , Pittsburgh, Pennsylvania ; and Department of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Sruti Shiva
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh , Pittsburgh, Pennsylvania ; Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania ; Department of Pharmacology and Chemical Biology, University of Pittsburgh , Pittsburgh, Pennsylvania ; and Department of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Mark T Gladwin
- Pittsburgh Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh , Pittsburgh, Pennsylvania ; Pulmonary, Allergy and Critical Care Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania ; Department of Pharmacology and Chemical Biology, University of Pittsburgh , Pittsburgh, Pennsylvania ; and Department of Medicine, Center for Metabolism and Mitochondrial Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
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63
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Xu LC, Meyerhoff ME, Siedlecki CA. Blood coagulation response and bacterial adhesion to biomimetic polyurethane biomaterials prepared with surface texturing and nitric oxide release. Acta Biomater 2019; 84:77-87. [PMID: 30471478 PMCID: PMC6549232 DOI: 10.1016/j.actbio.2018.11.035] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/10/2018] [Accepted: 11/20/2018] [Indexed: 12/26/2022]
Abstract
A dual functional polyurethane (PU) film that mimics aspects of blood vessel inner surfaces by combining surface texturing and nitric oxide (NO) release was fabricated through a soft lithography two-stage replication process. The fabrication of submicron textures on the polymer surface was followed by solvent impregnation with the NO donor, S-nitroso-N-acetylpenicillamine (SNAP). An in vitro plasma coagulation assay showed that the biomimetic surface significantly increased the plasma coagulation time and also exhibited reduced platelet adhesion and activation, thereby reducing the risk of blood coagulation and thrombosis. A contact activation assay for coagulation factor XII (FXII) demonstrated that both NO release and surface texturing also reduced FXII contact activation, which contributes to the inhibition of plasma coagulation. The biomimetic surface was also evaluated for bacterial adhesion in plasma and results demonstrate that this combined strategy enables a synergistic effect to reduce bacterial adhesion of Staphylococcus epidermidis, Staphylococcus aureus, and Pseudomonas aeruginosa microorganisms. The results strongly suggest that the biomimetic modification with surface texturing and NO release provides an effective approach to improve the biocompatibility of polymeric materials in combating thrombosis and microbial infection. STATEMENT OF SIGNIFICANCE: (1) Developed a dual functional polyurethane (PU) film that mimics blood vessel inner surface by combining surface texturing and nitric oxide (NO) release for combatting biomaterial associated thrombosis and microbial infection. (2) Studied the blood coagulation response and bacterial adhesion to such biomimetic PU surfaces, and demonstrated that the combination of surface texturing and NO release synergistically reduced the platelet adhesion and bacterial adhesion in plasma, providing an effective approach to improve the biocompatibility of biomaterials used in blood-contacting medical devices. (3) The NO releasing surface significantly inhibits the plasma coagulation via the reduction of contact activation of FXII, indicating the multifunctional roles of NO in improving the biocompatibility of biomaterials in blood-contacting medical devices.
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Affiliation(s)
- Li-Chong Xu
- Departments of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033, USA.
| | - Mark E Meyerhoff
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Christopher A Siedlecki
- Departments of Surgery, The Pennsylvania State University, College of Medicine, Hershey, PA 17033, USA; Departments of Bioengineering, The Pennsylvania State University, College of Medicine, Hershey, PA 17033, USA
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Yan D, Zhang D, Lu L, Qiu H, Wang J. Vascular endothelial growth factor-modified macrophages accelerate reendothelialization and attenuate neointima formation after arterial injury in atherosclerosis-prone mice. J Cell Biochem 2019; 120:10652-10661. [PMID: 30644609 DOI: 10.1002/jcb.28355] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 11/29/2018] [Indexed: 12/27/2022]
Abstract
Vascular endothelial growth factor (VEGF) is a promising molecule for cardiovascular diseases therapy. But lack of a targeted delivery system limits its translation into clinical application. This study aimed to develop stably overexpressing VEGF macrophages for targeted VEGF delivery to injured arteries and determine their potential for repairing of the damaged endothelium. Wire-induced carotid artery injury model was established in atherosclerosis-prone mice. It was observed that the VEGF-modified macrophages were recruited to the site of vascular injury and incorporated into new endothelium formation. VEGF-modified macrophages therapy accelerated reendothelialization and attenuated neointima formation. The VEGF protein level in tissues of injured arteries treated with VEGF-modified macrophages was increased. The upregulated C-C chemokine receptor type 5 (CCR5) and unaltered CCR2 protein levels were verified in VEGF-modified macrophages in vitro. Moreover, enhanced nitric oxide (NO) production in the culture medium of VEGF-modified macrophages was demonstrated. Our results indicated that VEGF-modified macrophages acted as vectors of VEGF targeting injured arteries, promoting the repairing directly by incorporating into new endothelium formation and indirectly by secreting sustainable VEGF and producing NO locally. This study represents a novel therapeutic application of targeted cell therapy with VEGF-modified macrophages for cardiovascular diseases.
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Affiliation(s)
- Dan Yan
- New Medicine Innovation and Development Institute, Department of Pharmacy, Medical College, Wuhan University of Science and Technology, Wuhan, Hubei, China.,Department of Cardiology, Hanyang Hospital of Wuhan University of Science and Technology, Wuhan, Hubei, China.,Department of Pathology, Medical College, Wuhan University of Science and Technology, Wuhan, Hubei, China.,Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Danna Zhang
- New Medicine Innovation and Development Institute, Department of Pharmacy, Medical College, Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Lili Lu
- New Medicine Innovation and Development Institute, Department of Pharmacy, Medical College, Wuhan University of Science and Technology, Wuhan, Hubei, China
| | - Hui Qiu
- Department of Radiation and Medical Oncology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, China
| | - Jun Wang
- New Medicine Innovation and Development Institute, Department of Pharmacy, Medical College, Wuhan University of Science and Technology, Wuhan, Hubei, China
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65
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Song Q, Li L, Xiong K, Tian W, Lu J, Wang J, Huang N, Tu Q, Yang Z. A facile dopamine-mediated metal-catecholamine coating for therapeutic nitric oxide gas interface-catalytic engineering of vascular devices. Biomater Sci 2019; 7:3741-3750. [DOI: 10.1039/c9bm00017h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A facile copper-dopamine coating with possibility of continuously generating NO from endogenous RSNOs was constructed on vascular stent for inhibiting coagulation and selectively promoting endothelial cells while inhibiting smooth muscle cell.
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Affiliation(s)
- Qiang Song
- Key Lab. of Advanced Technology for Materials of Education Ministry
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Long Li
- Institute of Environmental Engineering Technology
- China Institute for Radiation Protection
- Taiyuan
- China
| | - Kaiqin Xiong
- Key Lab. of Advanced Technology for Materials of Education Ministry
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Wenjie Tian
- Cardiology Department
- Sichuan Provincial People's Hospital & Sichuan Academy of Medical Sciences
- Chengdu
- China
| | - Jing Lu
- Anesthesiology Department
- Sichuan Provincial People's Hospital & Sichuan Academy of Medical Sciences
- Chengdu
- China
| | - Jin Wang
- Key Lab. of Advanced Technology for Materials of Education Ministry
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Nan Huang
- Key Lab. of Advanced Technology for Materials of Education Ministry
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Qiufen Tu
- Key Lab. of Advanced Technology for Materials of Education Ministry
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
| | - Zhilu Yang
- Key Lab. of Advanced Technology for Materials of Education Ministry
- School of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu
- China
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Abstract
The effects of diosgenin are discussed with respect to endothelial dysfunction, lipid profile, macrophage foam cell formation, VSMC viability, thrombosis and inflammation during the formation of atherosclerosis.
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Affiliation(s)
- Fang-Chun Wu
- College of Food and Bioengineering
- South China University of Technology
- Guangzhou
- China
| | - Jian-Guo Jiang
- College of Food and Bioengineering
- South China University of Technology
- Guangzhou
- China
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Chang H, Chang CY, Lee HJ, Chou CY, Chou TC. Magnolol ameliorates pneumonectomy and monocrotaline-induced pulmonary arterial hypertension in rats through inhibition of angiotensin II and endothelin-1 expression. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2018; 51:205-213. [PMID: 30466619 DOI: 10.1016/j.phymed.2018.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 10/01/2018] [Accepted: 10/03/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Magnolol, a major bioactive component extracted from Magnolia officinalis, exerts several beneficial effects, such as anti-inflammatory and anti-hypertensive activities. PURPOSE In this study, we investigated whether magnolol has a protective effect on pneumonectomy and monocrotaline-induced pulmonary arterial hypertension (PAH) in rats. DESIGN/METHODS The alterations of right ventricular (RV) hypertrophy, pulmonary vascular remodeling, histopathological parameters, and related gene expression and signaling pathways in lungs by magnolol treatment were studied in the PAH rats. RESULTS Administration of magnolol greatly ameliorated the characteristic features of PAH, including increased pulmonary arterial pressure, RV hypertrophy, and pulmonary vascular remodeling. Moreover, magnolol inhibited angiotensin-converting enzyme (ACE)/angiotensin II (Ang II)/Ang II type 1 receptor (AT-1R) cascade, whereas upregulates ACE2 in the lungs of PAH rats. The overexpression of endothelin-1 (ET-1) and ETA receptor occurred in the PAH rats was significantly attenuated by magnolol through inhibition of Akt/ERK1/2/GSK3β/β-catenin pathway. Compared with that of untreated PAH rats, higher expression of endothelial nitric oxide synthase, and lower expression of inducible nitric oxide synthase and O2- production in lungs were observed in magnolol-treated PAH rats. CONCLUSION We demonstrated that treatment with magnolol reduces the development of PAH induced by pneumonectomy and monocrotaline in rats, and suppressing Ang II and ET-1-mediated processes may contribute to its protective effects. These findings suggest that magnolol may be a potential agent for PAH therapy.
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Affiliation(s)
- Hung Chang
- Division of Thoracic Surgery, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Cheng-Yi Chang
- Graduate Institute of Physiology, National Defense Medical Center, Taipei, Taiwan; Department of Respiratory Therapy, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Hwei-Jen Lee
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Ching-Yu Chou
- Graduate Institute of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Tz-Chong Chou
- Department of Medical Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan; Department of Biotechnology, Asia University, Taichung, Taiwan; China Medical University Hospital, Taichung, Taiwan.
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68
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Lan M, Tang X, Zhang J, Yao Z. Insights in pathogenesis of multiple sclerosis: nitric oxide may induce mitochondrial dysfunction of oligodendrocytes. Rev Neurosci 2018; 29:39-53. [PMID: 28822986 DOI: 10.1515/revneuro-2017-0033] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 06/15/2017] [Indexed: 01/01/2023]
Abstract
Demyelinating diseases, such as multiple sclerosis (MS), are kinds of common diseases in the central nervous system (CNS), and originated from myelin loss and axonal damage. Oligodendrocyte dysfunction is the direct reason of demyelinating lesions in the CNS. Nitric oxide (NO) plays an important role in the pathological process of demyelinating diseases. Although the neurotoxicity of NO is more likely mediated by peroxynitrite rather than NO itself, NO can impair oligodendrocyte energy metabolism through mediating the damaging of mitochondrial DNA, mitochondrial membrane and mitochondrial respiratory chain complexes. In the progression of MS, NO can mainly mediate demyelination, axonal degeneration and cell death. Hence, in this review, we extensively discuss endangerments of NO in oligodendrocytes (OLs), which is suggested to be the main mediator in demyelinating diseases, e.g. MS. We hypothesize that NO takes part in MS through impairing the function of monocarboxylate transporter 1, especially causing axonal degeneration. Then, it further provides a new insight that NO for OLs may be a reliable therapeutic target to ameliorate the course of demyelinating diseases.
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Affiliation(s)
- Minghong Lan
- Department of Physiology, Third Military Medical University, Chongqing 400038, China
| | - Xiaoyi Tang
- Department of Physiology, Third Military Medical University, Chongqing 400038, China
| | - Jie Zhang
- Department of Physiology, Third Military Medical University, Chongqing 400038, China
| | - Zhongxiang Yao
- Department of Physiology, Third Military Medical University, Chongqing 400038, China
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Ahmad KA, Ze H, Chen J, Khan FU, Xuezhuo C, Xu J, Qilong D. The protective effects of a novel synthetic β-elemene derivative on human umbilical vein endothelial cells against oxidative stress-induced injury: Involvement of antioxidation and PI3k/Akt/eNOS/NO signaling pathways. Biomed Pharmacother 2018; 106:1734-1741. [PMID: 30119249 DOI: 10.1016/j.biopha.2018.07.107] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/17/2018] [Accepted: 07/18/2018] [Indexed: 01/23/2023] Open
Abstract
Antioxidant therapy is considered as promising strategy for treating oxidative stress-induced cardiovascular disease. Bis (β-elemene-13-yl) glutarate (BEG) is a novel β-elemene derivative. Herein, we examined the antioxidant activity of BEG on human umbilical vein endothelial cells (HUVECs) after injury with hydrogen peroxide (H2O2) and investigated the mechanism involved. HUVECs were divided into the following groups: control group (untreated cells); treated groups (cells treated with 0.1, 1, 10 μmol/L of BEG); positive control group (cells treated with 0.1 mM Vitamin E); model group (cells treated with 0.5 mM H2O2 alone). Cells were pre-incubated with or without BEG for 24 h and then incubated for a further 2 h with 0.5 mM H2O2. Our results showed that BEG significantly reduced H2O2 induced loss in endothelial cell viability, reactive oxygen species (ROS) production, reduced lactate dehydrogenase (LDH) release, and malonyldialdehyde (MDA) level in a concentration-dependent manner. Also, BEG increased the cellular the superoxide dismutase (SOD) activity. Moreover, we found that H2O2 decreased Akt and eNOS phosphorylation, which perhaps, indirectly reduced nitric oxide (NO) production. These effects induced by H2O2, however, were reduced by pre-treatment with BEG. BEG effects were inhibited by a PI3K inhibitor (wortmannin) and eNOS inhibitor (L-NAME). In conclusion, the present study demonstrated that BEG has antioxidant activity. Furthermore, BEG reduced H2O2-induced endothelial cells injury by the involvement of antioxidation and PI3K/Akt/eNOS/NO signaling pathways.
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Affiliation(s)
- Khalil Ali Ahmad
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Longmian Avenue, 639, Nanjing, Jiangsu, 211198, China; Shanghai Jiao Tong University, School of Pharmacy, 800 Dongchuan Road, Shanghai, 200240, China
| | - Hong Ze
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Longmian Avenue, 639, Nanjing, Jiangsu, 211198, China
| | - Jichao Chen
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, China
| | - Farhan Ullah Khan
- Shanghai Jiao Tong University, School of Pharmacy, 800 Dongchuan Road, Shanghai, 200240, China
| | - Chen Xuezhuo
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Longmian Avenue, 639, Nanjing, Jiangsu, 211198, China
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, 210009, China
| | - Ding Qilong
- Department of Pharmacology, School of Pharmacy, China Pharmaceutical University, Longmian Avenue, 639, Nanjing, Jiangsu, 211198, China.
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Andreicut AD, Pârvu AE, Mot AC, Pârvu M, Fischer Fodor E, Cătoi AF, Feldrihan V, Cecan M, Irimie A. Phytochemical Analysis of Anti-Inflammatory and Antioxidant Effects of Mahonia aquifolium Flower and Fruit Extracts. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:2879793. [PMID: 30050649 PMCID: PMC6040276 DOI: 10.1155/2018/2879793] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 05/07/2018] [Indexed: 02/07/2023]
Abstract
Oxidative stress and inflammation are interlinked processes. The aim of the study was to perform a phytochemical analysis and to evaluate the antioxidant and anti-inflammatory activities of ethanolic Mahonia aquifolium flower (MF), green fruit (MGF), and ripe fruit (MRF) extracts. Plant extract chemical composition was evaluated by HLPC. A DPPH test was used for the in vitro antioxidant activity. The in vivo antioxidant effects and the anti-inflammatory potential were tested on a rat turpentine oil-induced inflammation, by measuring serum nitric oxide (NOx) and TNF-alpha, total oxidative status (TOS), total antioxidant reactivity (TAR), oxidative stress index (OSI), 3-nitrothyrosine (3NT), malondialdehyde (MDA), and total thiols (SH). Extracts were administrated orally in three dilutions (100%, 50%, and 25%) for seven days prior to inflammation. The effects were compared to diclofenac. The HPLC polyphenol and alkaloid analysis revealed chlorogenic acid as the most abundant compound. All extracts had a good in vitro antioxidant activity, decreased NOx, TOS, and 3NT, and increased SH. TNF-alpha was reduced, and TAR increased only by MF and MGF. MDA was not influenced. Our findings suggest that M. aquifolium has anti-inflammatory and antioxidant effects that support the use in primary prevention of the inflammatory processes.
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Affiliation(s)
- Andra-Diana Andreicut
- Department of Pathophysiology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 3-4 Victor Babes Street, RO-400012 Cluj-Napoca, Romania
| | - Alina Elena Pârvu
- Department of Pathophysiology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 3-4 Victor Babes Street, RO-400012 Cluj-Napoca, Romania
| | - Augustin Cătălin Mot
- Department of Chemistry, Faculty of Chemistry and Chemical Engineering, “Babes-Bolyai” University, 11 Arany Janos Street, RO-400028 Cluj-Napoca, Romania
| | - Marcel Pârvu
- Department of Biology, Faculty of Biology and Geology, “Babes-Bolyai” University, 42 Republicii Street, RO-400015 Cluj-Napoca, Romania
| | - Eva Fischer Fodor
- Medfuture Research Center for Advanced Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, RO-400012 Cluj-Napoca, Romania
- Institute of Oncology “I. Chiricuta”, 34-36 Republicii Street, RO-400015 Cluj-Napoca, Romania
| | - Adriana Florinela Cătoi
- Department of Pathophysiology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 3-4 Victor Babes Street, RO-400012 Cluj-Napoca, Romania
| | - Vasile Feldrihan
- Department of Immunology and Alergology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 19-21 Croitorilor Street, RO-400162 Cluj-Napoca, Romania
| | - Mihai Cecan
- Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 8 Babes Street, RO-400012 Cluj-Napoca, Romania
| | - Alexandru Irimie
- Department of Oncology, Faculty of Medicine, “Iuliu Hațieganu” University of Medicine and Pharmacy, 34-36 Republicii Street, RO-400015 Cluj-Napoca, Romania
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Hsu WL, Lin YC, Jeng JR, Chang HY, Chou TC. Baicalein Ameliorates Pulmonary Arterial Hypertension Caused by Monocrotaline through Downregulation of ET-1 and ETAR in Pneumonectomized Rats. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2018; 46:769-783. [DOI: 10.1142/s0192415x18500404] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Baicalein (BE) extracted from Scutellaria baicalensis Georgi is able to alleviate various cardiovascular and inflammatory diseases. However, the effects of BE on pulmonary arterial hypertension (PAH) remain unknown. Therefore, the present study aimed to examine whether BE ameliorates pneumonectomy and monocrotaline-induced PAH in rats and further investigate the underlying molecular mechanisms. Administration of BE greatly attenuated the development of PAH as evidenced by an improvement of its characteristic features, including elevation of right ventricular systolic pressure, right ventricular hypertrophy, and pulmonary vascular remodeling. Moreover, the increased protein expression of endothelin-1 (ET-1) and ETA receptor (ETAR), superoxide overproduction, and activation of Akt/ERK1/2/GSK3[Formula: see text]/[Formula: see text]-catenin pathway that occurred in the lungs of PAH rats were markedly reversed by BE treatment. Compared with the untreated PAH rats, higher expression of endothelial nitric oxide synthase (eNOS), but lower levels of inducible nitric oxide synthase and vWF were observed in BE-treated PAH rats. Collectively, treatment with BE remarkably attenuates the pathogenesis of PAH, and the protection of BE may be associated with suppressing Akt/Erk1/2/GSK3[Formula: see text]/[Formula: see text]-catenin/ET-1/ETAR signaling and preventing endothelial dysfunction. These results suggest that BE is a potential agent for treatment of PAH.
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Affiliation(s)
- Wen-Lin Hsu
- School of Medicine, Tzu Chi University, Hualien, Taiwan
- Department of Radiation Oncology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Yu-Chieh Lin
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Jing-Ren Jeng
- Department of Cardiology, Buddhist Tzu Chi General Hospital, Hualien, Taiwan
| | - Heng-Yuan Chang
- School of Post-Baccalaureate Chinese Medicine, Tzu Chi University, Hualien, Taiwan
| | - Tz-Chong Chou
- Department of Medical Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan
- Department of Biotechnology, Asia University, Taichung, Taiwan
- China Medical University Hospital, China Medical University, Taichung, Taiwan
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Boeno FP, Ramis TR, Farinha JB, de Lemos LS, Medeiros NDS, Ribeiro JL. Acute effects of strength exercise with blood flow restriction on vascular function of young healthy males. J Vasc Bras 2018; 17:122-127. [PMID: 30377421 PMCID: PMC6205709 DOI: 10.1590/1677-5449.011017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Background Strength training with blood flow restriction (STBFR) provokes similar neuromuscular adaptations to traditional strength training using low training loads. However, there is a need for better understanding of the repercussions for antioxidant parameters and vascular function. Objectives: The objective of the present study was to investigate the effects of a session of low intensity strength training with blood flow restriction, compared with high intensity and low intensity strength training without blood flow restriction, on the levels of nitric oxide products and antioxidant enzyme activity in healthy young men. Methods: Eleven young men performed three strength exercise sessions: low intensity with blood flow restriction (LIBFR), high intensity (HI), and low intensity (LI). Activity of the antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD) was assessed and metabolites of nitric oxide (NOx) were assayed before and after each session. Results: There were no changes to NOx plasma levels under the different exercise conditions (p > 0.05). However, SOD activity exhibited a significant reduction after the LIBFR condition (p < 0.05), while CAT activity reduced significantly after the LI condition (p < 0.05). Conclusions: The results of this study suggest that one session of low intensity strength training with blood flow restriction does not reduce bioavailability of nitric oxide or induce redox imbalance in healthy young men.
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Affiliation(s)
- Francesco Pinto Boeno
- Universidade Federal do Rio Grande do Sul - UFRGS, Programa de Pós-graduação em Ciências do Movimento Humano, Porto Alegre, RS, Brasil.,Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento de Ciências da Saúde, São Luiz Gonzaga, RS, Brasil
| | - Thiago Rozales Ramis
- Universidade Federal do Rio Grande do Sul - UFRGS, Programa de Pós-graduação em Ciências do Movimento Humano, Porto Alegre, RS, Brasil.,Centro Universitario Metodista - IPA, Porto Alegre, RS, Brasil
| | - Juliano Boufleur Farinha
- Universidade Federal do Rio Grande do Sul - UFRGS, Programa de Pós-graduação em Ciências do Movimento Humano, Porto Alegre, RS, Brasil
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Does dietary nitrate say NO to cardiovascular ageing? Current evidence and implications for research. Proc Nutr Soc 2018; 77:112-123. [DOI: 10.1017/s0029665118000058] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
CVD are characterised by a multi-factorial pathogenesis. Key pathogenetic steps in the development of CVD are the occurrence of endothelial dysfunction and formation of atherosclerotic lesions. Reduced nitric oxide (NO) bioavailability is a primary event in the initiation of the atherosclerotic cascade. NO is a free radical with multiple physiological functions including the regulation of vascular resistance, coagulation, immunity and oxidative metabolism. The synthesis of NO proceeds via two distinct pathways identified as enzymatic and non-enzymatic. The former involves the conversion of arginine into NO by the NO synthases, whilst the latter comprises a two-step reducing process converting inorganic nitrate $({\rm NO}_3^ - )$ into nitrite and subsequently NO.Inorganic ${\rm NO}_3^ - $ is present in water and food, particularly beetroot and green leafy vegetables. Several investigations have therefore used the non-enzymatic NO pathway as a target for nutritional supplementation (${\rm NO}_3^ - $ salts) or dietary interventions (high-${\rm NO}_3^ - $ foods) to increase NO bioavailability and impact on cardiovascular outcomes. Some studies have reported positive effects of dietary ${\rm NO}_3^ - $ on systolic blood pressure and endothelial function in patients with hypertension and chronic heart failure. Nevertheless, results have been inconsistent and the size of the effect appears to be declining in older individuals. Additionally, there is a paucity of studies for disorders such as diabetes, CHD and chronic kidney failure. Thus, whilst dietary ${\rm NO}_3^ - $ supplementation could represent an effective and viable strategy for the primary and secondary prevention of age-related cardiovascular and metabolic diseases, more large-scale, robust studies are awaited to confirm or refute this notion.
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74
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Park HJ, Kim JK, Jun JG. Facile Synthesis and In Vitro
Nitric Oxide Production Inhibitory Activity of Benzoxazoles. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11465] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Hyeong Jin Park
- Department of Chemistry and Institute of Applied Chemistry; Hallym University; Chuncheon 24252 South Korea
| | - Jin-Kyung Kim
- Department of Biomedical Science, College of Natural Science; Catholic University of Daegu; Gyeungsan-Si 38430 South Korea
| | - Jong-Gab Jun
- Department of Chemistry and Institute of Applied Chemistry; Hallym University; Chuncheon 24252 South Korea
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75
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Calabró V, Litterio MC, Fraga CG, Galleano M, Piotrkowski B. Effects of quercetin on heart nitric oxide metabolism in l-NAME treated rats. Arch Biochem Biophys 2018; 647:47-53. [PMID: 29621523 DOI: 10.1016/j.abb.2018.03.041] [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: 02/23/2018] [Revised: 03/30/2018] [Accepted: 03/31/2018] [Indexed: 02/07/2023]
Abstract
This study investigated the effects of a quercetin-supplemented diet on the biochemical changes installed in the heart of NO-deficient rats in terms of oxidants production and NO bioavailability determinants. Sprague-Dawley rats were subjected to Nω-nitro-l-arginine methyl ester (l-NAME) treatment (360 mg/L l-NAME in the drinking water, 4 d) with or without supplementation with quercetin (4 g/kg diet). l-NAME administration led to increased blood pressure (BP) (30%), decreased nitric oxide synthase (NOS) activity (50%), and increases in NADPH oxidase (NOX)-dependent superoxide anion production (60%) and p47phox protein level (65%). The co-administration of quercetin prevented the increase in BP and the activation of NOX but did not modify the decrease in NOS activity caused by l-NAME. In addition, quercetin affected oxidative stress parameters as glutathione oxidation, and the activities of oxidant detoxifying enzymes superoxide dismutase, glutathione peroxidase, and catalase. Thus, quercetin administration counteracts l-NAME effects on NO bioavailability determinants in vivo, essentially through controlling NOX-mediated superoxide anion production.
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Affiliation(s)
- Valeria Calabró
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina
| | - María C Litterio
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina
| | - Cesar G Fraga
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina; Department of Nutrition, University of California, Davis, USA
| | - Monica Galleano
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina.
| | - Barbara Piotrkowski
- Fisicoquímica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Bioquímica y Medicina Molecular (IBIMOL), UBA-CONICET, Buenos Aires, Argentina
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76
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Wang W, Wang B. Esterase-sensitive sulfur dioxide prodrugs inspired by modified Julia olefination. Chem Commun (Camb) 2018; 53:10124-10127. [PMID: 28840924 DOI: 10.1039/c7cc05392d] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Sulfur dioxide (SO2) is an endogenously produced gaseous molecule, and is emerging as a potential gasotransmitter. Herein, we describe the first series of esterase-sensitive prodrugs inspired by modified Julia olefination as SO2 donors.
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Affiliation(s)
- Wenyi Wang
- Department of Chemistry and Center for Diagnostics and Therapeutics, Georgia State University, Atlanta, Georgia 30303, USA.
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77
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Fenugreek (Trigonella Foenum-Graecum) Seed Flour and Diosgenin Preserve Endothelium-Dependent Arterial Relaxation in a Rat Model of Early-Stage Metabolic Syndrome. Int J Mol Sci 2018. [PMID: 29534453 PMCID: PMC5877659 DOI: 10.3390/ijms19030798] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Fenugreek is a common herb possessing several bioactive components including diosgenin. Here, dietary fenugreek seed flour and diosgenin were evaluated on a model of endothelium-dependent vasorelaxation by abdominal aortas isolated from rats receiving high-fat, high-sugar diet (HFHSD). 60 male Wistar rats were randomized into six groups: (i) negative control getting conventional rat feed regimen; (ii) positive control receiving HFHSD; (iii) a test group fed 2 g/kg bw/day fenugreek seed flour (containing 10 mg/kg bw/day diosgenin) + HFHSD; (iv) three test groups fed 1, 10 and 50 mg/kg bw/day diosgenin + HFHSD. Alimentary treatments were carried out for six weeks. The abdominal aortas were isolated, and 2 mm wide rings were sectioned off and mounted at a resting tension of 10 mN in organ baths containing Krebs solution (36 °C) exposed to 95% O2 and 5% CO2. After 60-min incubation, a norepinephrine concentration-response (E/c) curve was generated to determine their half-maximal effective concentration (EC50) value. After 60-min wash-out, a pre-contraction with norepinephrine EC50 was made, followed by an acetylcholine E/c curve. Plasma glutathione levels, glutathione-handling enzyme activities and blood antioxidant capacities were also determined. HFHSD significantly decreased the dilatory response to acetylcholine and increased plasma glutathione levels and these effects were significantly reversed by fenugreek seed flour, 10 and 50 mg/kg bw/day diosgenin. Both fenugreek and diosgenin treatments prevent HFHSD-induced endothelial dysfunction and redox changes. As fenugreek treatment was more effective at lower acetylcholine concentrations than diosgenin treatments, components of fenugreek other than diosgenin may contribute to the beneficial effects of dietary fenugreek seed flour.
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78
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Li H, Liao Y, Gao L, Zhuang T, Huang Z, Zhu H, Ge J. Coronary Serum Exosomes Derived from Patients with Myocardial Ischemia Regulate Angiogenesis through the miR-939-mediated Nitric Oxide Signaling Pathway. Am J Cancer Res 2018; 8:2079-2093. [PMID: 29721064 PMCID: PMC5928872 DOI: 10.7150/thno.21895] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 02/09/2018] [Indexed: 12/19/2022] Open
Abstract
Rationale: Angiogenesis is a crucial step towards tissue repair and regeneration after ischemia. The role of circulating exosomes in angiogenic signal transduction has not been well elucidated. Thus, this study aims to investigate the effects of coronary serum exosomes from patients with myocardial ischemia on angiogenesis and to elucidate the underlying mechanisms. Methods and Results: The patients were enrolled according to the inclusion and exclusion criteria. Coronary blood was obtained from the angiography catheter. Serum exosomes were purified and characterized by their specific morphology and surface markers. In vitro analysis showed that compared to exosomes from healthy controls (con-Exo), exosomes from patients with myocardial ischemia (isc-Exo) enhanced endothelial cell proliferation, migration and tube formation. In a mouse hind-limb ischemia model, blood perfusion and histological staining demonstrated that isc-Exo significantly promoted blood flow recovery and enhanced neovascularization compared to con-Exo. Further, we revealed that cardiomyocytes, but not cardiac fibroblasts or endothelial cells, were initiated to release exosomes under ischemic stress; cardiomyocytes might be the source of bioactive exosomes in coronary serum. In addition, microarray analysis indicated that miR-939-5p was significantly down-regulated in isc-Exo. By knockdown and overexpression analyses, we found that miR-939-5p regulated angiogenesis by targeting iNOS. miR-939-5p inhibited both iNOS's expression and its activity, attenuated endothelial NO production, and eventually impaired angiogenesis. Conclusions: Exosomes derived from patients with myocardial ischemia promote angiogenesis via the miR-939-iNOS-NO pathway. Our study highlights that coronary serum exosomes serve as an important angiogenic messenger in patients suffering from myocardial ischemia.
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79
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eNOS S-nitrosylation mediated OxLDL-induced endothelial dysfunction via increasing the interaction of eNOS with β‑catenin. Biochim Biophys Acta Mol Basis Dis 2018; 1865:1793-1801. [PMID: 29471036 DOI: 10.1016/j.bbadis.2018.02.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/19/2018] [Accepted: 02/13/2018] [Indexed: 01/03/2023]
Abstract
Protein S-nitrosylation plays an important role in the progression of cardiovascular diseases. eNOS can be S-nitrosylated in endothelial cells, and this modification reversibly attenuates enzyme activity. Under physiological conditions, eNOS directly interacts with β‑catenin. However, whether and how eNOS S-nitrosylation regulates the β‑catenin signal pathway and participates in endothelial dysfunction remains unknown. Here, we show that OxLDL induces the S-nitrosylation of eNOS, which enhances the interaction between eNOS and β‑catenin, transcriptional activity of β‑catenin, cell migration and adhesion molecule expression in endothelial cells. In addition, these effects are partially abolished after eNOS is mutated at Cys94 and Cys99, but not Cys441, in endothelial cells. Furthermore, OxLDL increases iNOS expression. The specific iNOS inhibitor 1400 W decreases eNOS S-nitrosylation and the association of eNOS and β‑catenin, thereby blocking the β‑catenin signal pathway to alleviate OxLDL-induced endothelial dysfunction. Taken together, OxLDL induces eNOS S-nitrosylation at Cys94 and Cys99 via an iNOS-dependent manner, which may increase β‑catenin activation and trigger endothelial injury. This study describes a novel mechanism of endothelial dysfunction.
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80
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Endothelial nitric oxide synthase overexpressing human early outgrowth cells inhibit coronary artery smooth muscle cell migration through paracrine functions. Sci Rep 2018; 8:877. [PMID: 29343714 PMCID: PMC5772515 DOI: 10.1038/s41598-017-18848-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 12/19/2017] [Indexed: 12/14/2022] Open
Abstract
Cells mobilized from the bone marrow can contribute to endothelial regeneration and repair. Nevertheless, cardiovascular diseases are associated with diminished numbers and function of these cells, attenuating their healing potential. Gene transfer of endothelial nitric oxide synthase (eNOS) can restore the activity of circulating cells. Furthermore, estrogen accelerates the reendothelialization capacity of early outgrowth cells (EOCs). We hypothesized that overexpressing eNOS alone or in combination with estrogen stimulation in EOCs would potentiate the beneficial effects of these cells in regulating smooth muscle cell (SMC) function. Native human EOCs did not have any effect on human coronary artery SMC (hCASMC) proliferation or migration. Transfecting EOCs with a human eNOS plasmid and/or stimulating with 17β-estradiol (E2) increased NO production 3-fold and enhanced EOC survival. Moreover, in co-culture studies, eNOS overexpressing or E2-stimulated EOCs reduced hCASMC migration (by 23% and 56% respectively), vs. control EOCs. These effects do not implicate ERK1/2 or focal adhesion kinases. Nevertheless, NOS-EOCs had no effect on hCASMC proliferation. These results suggest that overexpressing or activating eNOS in EOCs increases their survival and enhances their capacity to regulate SMC migration through paracrine effects. These data elucidate how eNOS overexpression or activation in EOCs can prevent vascular remodeling.
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81
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Ma W, Liu L, Chen H, Zhao Y, Yang P, Huang N. Micropatterned immobilization of membrane-mimicking polymer and peptides for regulation of cell behaviors in vitro. RSC Adv 2018; 8:20836-20850. [PMID: 35542362 PMCID: PMC9080867 DOI: 10.1039/c8ra02607f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/28/2018] [Indexed: 11/21/2022] Open
Abstract
The Ti-PDA-M/R(P) biomimetic micropattern was successfully fabricated with PMMPC-HD and GREDVY. The Ti-PDA-M/R(P) micropattern can regulate EC morphology, orientation and functions, and inhibit platelet adhesion and proliferation of SMCs.
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Affiliation(s)
- Wenyong Ma
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Luying Liu
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Huiqing Chen
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Yuancong Zhao
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Ping Yang
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
| | - Nan Huang
- Key Laboratory of Advanced Technology of Materials
- Ministry of Education
- School of Material Science and Technology of Southwest Jiaotong University
- Chengdu 610031
- PR China
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82
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Villela-Castrejón J, Antunes-Ricardo M, Gutiérrez-Uribe JA. Bioavailability and anti-inflammatory activity of phenolic acids found in spray-dried nejayote after its in vitro digestion. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.09.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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83
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Qiu H, Wu Y, Wang Q, Liu C, Xue L, Wang H, Wu Q, Jiang Q. Effect of berberine on PPAR α-NO signalling pathway in vascular smooth muscle cell proliferation induced by angiotensin IV. PHARMACEUTICAL BIOLOGY 2017; 55:227-232. [PMID: 27927051 PMCID: PMC6130450 DOI: 10.1080/13880209.2016.1257642] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 08/28/2016] [Accepted: 11/02/2016] [Indexed: 05/26/2023]
Abstract
CONTEXT The available treatments for the abnormal proliferation of vascular smooth muscle cells (VSMCs) are still dismal. Berberine has been demonstrated to possess extensive medicine activity, yet relatively little is known about its effect on VSMCs proliferation. Many studies showed that PPARα and NO participated in the process of VSMCs proliferation. OBJECTIVE To evaluate the effect of berberine and its possible influence on PPARα-NO pathway in angiotensin IV-stimulated VSMCs. MATERIALS AND METHODS The primary VSMCs were cultured with the tissue explants method, and the proliferation was characterized by MTT and protein content. Protein and mRNA expression were measured by Western blot and real-time RT-PCR, respectively. NO synthase (NOS) activity was measured using a spectrophotometric assay, and NO concentration was measured using the Griess assay. RESULTS Angiotensin IV (0.1 nmol/L)-induced VSMCs proliferation was evidenced by increasing the optical density at A490 and total protein content (p < 0.01), which was inhibited by berberine (10, 30 and 100 μmol/L) in a concentration-dependent manner (p < 0.05). Angiotensin IV decreased the expression of PPARα at mRNA and protein level (p < 0.05), which occurred in parallel with declining eNOS mRNA expression, NOS activity and NO concentration (p < 0.01). Berberine at 30 μmol/L reversed the effects of angiotensin IV in VSMCs (p < 0.05), which were abolished by MK 886 (0.3 μmol/L) (p < 0.05). DISCUSSION AND CONCLUSION The results support the therapeutic effects of berberine on angiotensin IV-induced proliferation in cultured VSMCs at least partially through targeting the PPARα-NO signalling pathway.
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MESH Headings
- Angiotensin II/analogs & derivatives
- Angiotensin II/pharmacology
- Animals
- Berberine/pharmacology
- Cell Proliferation/drug effects
- Cells, Cultured
- Dose-Response Relationship, Drug
- Female
- Indoles/pharmacology
- Male
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Nitric Oxide/metabolism
- Nitric Oxide Synthase Type III/genetics
- Nitric Oxide Synthase Type III/metabolism
- PPAR alpha/agonists
- PPAR alpha/genetics
- PPAR alpha/metabolism
- Primary Cell Culture
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Rats, Sprague-Dawley
- Signal Transduction/drug effects
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Affiliation(s)
- Hongmei Qiu
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Yang Wu
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Quanhua Wang
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Changqing Liu
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Lai Xue
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Hong Wang
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Qin Wu
- Department of Pharmacology, Key Laboratory for Basic Pharmacology of Ministry of Education, Zunyi Medical College, Guizhou, P.R. China
| | - Qingsong Jiang
- Department of Pharmacology, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
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Hu XL, Li MP, Song PY, Tang J, Chen XP. AGXT2: An unnegligible aminotransferase in cardiovascular and urinary systems. J Mol Cell Cardiol 2017; 113:33-38. [PMID: 28970090 DOI: 10.1016/j.yjmcc.2017.09.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 09/22/2017] [Accepted: 09/27/2017] [Indexed: 01/07/2023]
Abstract
Cardiovascular diseases (CVDs) and renal impairment interact in a complex and interdependent manner, which makes clarification of possible pathogenesis between CVDs and renal diseases very challenging and important. There is increasing evidence showing that both asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA) play a crucial role in the development of CVDs as well as in the prediction of cardiovascular events. Also, the plasma levels of ADMA and SDMA were reported to be significantly associated with renal function. Alanine-glyoxylate aminotransferase 2 (AGXT2) is reported to be involved in ADMA and SDMA metabolism, thus deficiency in the expression or activity of AGXT2 may play a part in the progression of cardiovascular or renal diseases through affecting ADMA/SDMA levels. Here, we focused our attention on AGXT2 and discussed its potential impact on CVDs and renal diseases. Meanwhile, the review also summarized the functions and recent advances of AGXT2, as well as the clinical association studies of AGXT2 in cardiovascular and urinary systems, which might arouse the interest of researchers in these fields.
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Affiliation(s)
- Xiao-Lei Hu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China
| | - Mu-Peng Li
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China
| | - Pei-Yuan Song
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China
| | - Jie Tang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China.
| | - Xiao-Ping Chen
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, China.
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Benign Effect of Extremely Low-Frequency Electromagnetic Field on Brain Plasticity Assessed by Nitric Oxide Metabolism during Poststroke Rehabilitation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:2181942. [PMID: 29138675 PMCID: PMC5613626 DOI: 10.1155/2017/2181942] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 07/02/2017] [Accepted: 08/14/2017] [Indexed: 12/17/2022]
Abstract
Nitric oxide (NO) is one of the most important signal molecules, involved in both physiological and pathological processes. As a neurotransmitter in the central nervous system, NO regulates cerebral blood flow, neurogenesis, and synaptic plasticity. The aim of our study was to investigate the effect of the extremely low-frequency electromagnetic field (ELF-EMF) on generation and metabolism of NO, as a neurotransmitter, in the rehabilitation of poststroke patients. Forty-eight patients were divided into two groups: ELF-EMF and non-ELF-EMF. Both groups underwent the same 4-week rehabilitation program. Additionally, the ELF-EMF group was exposed to an extremely low-frequency electromagnetic field of 40 Hz, 7 mT, for 15 min/day. Levels of 3-nitrotyrosine, nitrate/nitrite, and TNFα in plasma samples were measured, and NOS2 expression was determined in whole blood samples. Functional status was evaluated before and after a series of treatments, using the Activity Daily Living, Geriatric Depression Scale, and Mini-Mental State Examination. We observed that application of ELF-EMF significantly increased 3-nitrotyrosine and nitrate/nitrite levels, while expression of NOS2 was insignificantly decreased in both groups. The results also show that ELF-EMF treatments improved functional and mental status. We conclude that ELF-EMF therapy is capable of promoting recovery in poststroke patients.
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86
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Hybrid Nitric Oxide Donor and its Carrier for the Treatment of Peripheral Arterial Diseases. Sci Rep 2017; 7:8692. [PMID: 28821752 PMCID: PMC5562917 DOI: 10.1038/s41598-017-08441-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 07/12/2017] [Indexed: 01/20/2023] Open
Abstract
Nitric oxide (NO) has been known to promote physiological angiogenesis to treat peripheral arterial diseases (PAD) by increasing the vascular endothelial growth factor (VEGF) level in endothelial cells (ECs) and preventing platelet adherence and leukocyte chemotaxis. However, the ongoing ischemic event during peripheral ischemia produces superoxide and diminishes the NO bioavailability by forming toxic peroxynitrite anion. Here we disclose an efficacious hybrid molecule 4-(5-Amino-1,2,3-oxadiazol-3-yl)-2,2,6,6-tetramethyl-1-piperidinol (SA-2) containing both antioxidant and NO donor functionalities that provide a therapeutic level of NO necessary to promote angiogenesis and to protect ECs against hydrogen peroxide-induced oxidative stress. Compound SA-2 scavenged reactive oxygen species, inhibited proliferation and migration of smooth muscle cells (SMCs) and promoted the tube formation from ECs. Copolymer poly(lactic-co-glycolic acid) (PLGA) nanoparticles loaded with SA-2 provided a sustained release of NO over days, improved aqueous stability in serum, protected ECs against oxidative stress, and enhanced angiogenesis under stress conditions as compared to that of the control in the in vitro matrigel tube formation assay. These results indicated the potential use of SA-2 nanoparticles as an alternative therapy to treat PAD.
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87
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Simultaneous monitoring of intra- and extracellular nitric oxide in living cells by means of dual-color fluorescence imaging. Nitric Oxide 2017; 67:30-38. [DOI: 10.1016/j.niox.2017.04.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 04/14/2017] [Accepted: 04/18/2017] [Indexed: 12/18/2022]
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88
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Allagnat F, Dubuis C, Lambelet M, Le Gal L, Alonso F, Corpataux JM, Déglise S, Haefliger JA. Connexin37 reduces smooth muscle cell proliferation and intimal hyperplasia in a mouse model of carotid artery ligation. Cardiovasc Res 2017; 113:805-816. [PMID: 28449099 DOI: 10.1093/cvr/cvx079] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 04/20/2017] [Indexed: 12/11/2022] Open
Abstract
AIMS Intimal hyperplasia (IH) is an abnormal response to vessel injury characterized by the dedifferentiation, migration, and proliferation of quiescent vascular smooth muscle cells (VSMC) to form a neointima layer. Vascular connexins (Cx) are involved in the pathophysiology of various vascular diseases, and Cx43, the main Cx expressed in VSMC, has been shown to promote VSMC proliferation and IH. The aim of this study was to investigate the participation of another Cx, namely Cx37, in the formation of the neointima layer. METHODS AND RESULTS Wild-type (WT) and Cx37-deficient (Cx37-/-) C57BL/6J mice were subjected to carotid artery ligation (CAL), a model of vessel injury and IH. The neointima developed linearly in WT until 28 days post surgery. In contrast, the neointima layer was almost absent 14 days after surgery in Cx37-/- mice, and twice as more developed after 28 days compared to WT mice. This large neointima formation correlated with a two-fold increase in cell proliferation in the media and neointima regions between 14 and 28 days in Cx37-/- mice compared to WT mice. The CAL triggered Cx43 overexpression in the media and neointima layers of ligated carotids in WT mice, and selectively up-regulated Cx37 expression in the media layer, but not in the neointima layer. The de novo expression of Cx37 in human primary VSMC reduced cell proliferation and P-Akt levels, in association with lower Cx43 levels, whereas Cx43 overexpression increased P-Akt levels. CONCLUSION The presence of Cx37 in the media layer of injured arteries restrains VSMC proliferation and limits the development of IH, presumably by interfering with the pro-proliferative effect of Cx43 and the Akt pathway.
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MESH Headings
- Aged
- Animals
- Carotid Arteries/metabolism
- Carotid Arteries/pathology
- Carotid Arteries/surgery
- Carotid Artery Injuries/genetics
- Carotid Artery Injuries/metabolism
- Carotid Artery Injuries/pathology
- Carotid Stenosis/genetics
- Carotid Stenosis/metabolism
- Carotid Stenosis/pathology
- Cell Proliferation
- Cells, Cultured
- Connexin 43/metabolism
- Connexins/deficiency
- Connexins/genetics
- Connexins/metabolism
- Disease Models, Animal
- Female
- Humans
- Hyperplasia
- Ligation
- Male
- Mice, Inbred C57BL
- Mice, Knockout
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Neointima
- Phosphorylation
- Proto-Oncogene Proteins c-akt/metabolism
- Signal Transduction
- Time Factors
- Gap Junction alpha-4 Protein
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Affiliation(s)
- Florent Allagnat
- Department of Vascular Surgery, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Céline Dubuis
- Department of Vascular Surgery, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Martine Lambelet
- Department of Vascular Surgery, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Loïc Le Gal
- Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV), Laboratory of Experimental Medicine, c/o Department of Physiology, Bugnon 7a, 1005 Lausanne, Switzerland
| | - Florian Alonso
- Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV), Laboratory of Experimental Medicine, c/o Department of Physiology, Bugnon 7a, 1005 Lausanne, Switzerland
| | - Jean-Marc Corpataux
- Department of Vascular Surgery, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Sébastien Déglise
- Department of Vascular Surgery, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Jacques-Antoine Haefliger
- Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV), Laboratory of Experimental Medicine, c/o Department of Physiology, Bugnon 7a, 1005 Lausanne, Switzerland
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89
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Jun I, Ahmad T, Bak S, Lee JY, Kim EM, Lee J, Lee YB, Jeong H, Jeon H, Shin H. Spatially Assembled Bilayer Cell Sheets of Stem Cells and Endothelial Cells Using Thermosensitive Hydrogels for Therapeutic Angiogenesis. Adv Healthc Mater 2017; 6. [PMID: 28230931 DOI: 10.1002/adhm.201601340] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 01/27/2017] [Indexed: 12/28/2022]
Abstract
Although the coculture of multiple cell types has been widely employed in regenerative medicine, in vivo transplantation of cocultured cells while maintaining the hierarchical structure remains challenging. Here, a spatially assembled bilayer cell sheet of human mesenchymal stem cells and human umbilical vein endothelial cells on a thermally expandable hydrogel containing fibronectin is prepared and its effect on in vitro proangiogenic functions and in vivo ischemic injury is investigated. The expansion of hydrogels in response to a temperature change from 37 to 4 °C allows rapid harvest and delivery of the bilayer cell sheet to two different targets (an in vitro model glass surface and in vivo tissue). The in vitro study confirms that the bilayer sheet significantly increases proangiogenic functions such as the release of nitric oxide and expression of vascular endothelial cell genes. In addition, transplantation of the cell sheet from the hydrogels into a hindlimb ischemia mice model demonstrates significant retardation of necrosis particularly in the group transplated with the bilayer sheet. Collectively, the bilayer cell sheet is readily transferrable from the thermally expandable hydrogel and represents an alternative approach for recovery from ischemic injury, potentially via improved cell-cell communication.
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Affiliation(s)
- Indong Jun
- Department of Bioengineering; Institute for Bioengineering and Biopharmaceutical Research; Hanyang University; Seoul 04763 Republic of Korea
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology; Seoul 02792 Republic of Korea
| | - Taufiq Ahmad
- Department of Bioengineering; Institute for Bioengineering and Biopharmaceutical Research; Hanyang University; Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team; Hanyang University; Seoul 04763 Republic of Korea
| | - Seongwoo Bak
- Department of Bioengineering; Institute for Bioengineering and Biopharmaceutical Research; Hanyang University; Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team; Hanyang University; Seoul 04763 Republic of Korea
| | - Joong-Yup Lee
- Department of Bioengineering; Institute for Bioengineering and Biopharmaceutical Research; Hanyang University; Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team; Hanyang University; Seoul 04763 Republic of Korea
| | - Eun Mi Kim
- Department of Bioengineering; Institute for Bioengineering and Biopharmaceutical Research; Hanyang University; Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team; Hanyang University; Seoul 04763 Republic of Korea
| | - Jinkyu Lee
- Department of Bioengineering; Institute for Bioengineering and Biopharmaceutical Research; Hanyang University; Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team; Hanyang University; Seoul 04763 Republic of Korea
| | - Yu Bin Lee
- Department of Bioengineering; Institute for Bioengineering and Biopharmaceutical Research; Hanyang University; Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team; Hanyang University; Seoul 04763 Republic of Korea
| | - Hongsoo Jeong
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology; Seoul 02792 Republic of Korea
| | - Hojeong Jeon
- Center for Biomaterials; Biomedical Research Institute; Korea Institute of Science and Technology; Seoul 02792 Republic of Korea
| | - Heungsoo Shin
- Department of Bioengineering; Institute for Bioengineering and Biopharmaceutical Research; Hanyang University; Seoul 04763 Republic of Korea
- BK21 Plus Future Biopharmaceutical Human Resources Training and Research Team; Hanyang University; Seoul 04763 Republic of Korea
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90
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Bowen PK, Seitz JM, Guillory RJ, Braykovich JP, Zhao S, Goldman J, Drelich JW. Evaluation of wrought Zn-Al alloys (1, 3, and 5 wt % Al) through mechanical and in vivo testing for stent applications. J Biomed Mater Res B Appl Biomater 2017; 106:245-258. [PMID: 28130871 DOI: 10.1002/jbm.b.33850] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 12/26/2016] [Accepted: 01/01/2017] [Indexed: 11/09/2022]
Abstract
Special high grade zinc and wrought zinc-aluminum (Zn-Al) alloys containing up to 5.5 wt % Al were processed, characterized, and implanted in rats in search of a new family of alloys with possible applications as bioabsorbable endovascular stents. These materials retained roll-induced texture with an anisotropic distribution of the second-phase Al precipitates following hot-rolling, and changes in lattice parameters were observed with respect to Al content. Mechanical properties for the alloys fell roughly in line with strength (190-240 MPa yield strength; 220-300 MPa ultimate tensile strength) and elongation (15-30%) benchmarks, and favorable elastic ranges (0.19-0.27%) were observed. Intergranular corrosion was observed during residence of Zn-Al alloys in the murine aorta, suggesting a different corrosion mechanism than that of pure zinc. This mode of failure needs to be avoided for stent applications because the intergranular corrosion caused cracking and fragmentation of the implants, although the composition of corrosion products was roughly identical between non- and Al-containing materials. In spite of differences in corrosion mechanisms, the cross-sectional reduction of metals in murine aorta was nearly identical at 30-40% and 40-50% after 4.5 and 6 months, respectively, for pure Zn and Zn-Al alloys. Histopathological analysis and evaluation of arterial tissue compatibility around Zn-Al alloys failed to identify areas of necrosis, though both chronic and acute inflammatory indications were present. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 245-258, 2018.
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Affiliation(s)
- Patrick K Bowen
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, 49931
| | - Jan-Marten Seitz
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, 49931
| | - Roger J Guillory
- Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan, 49931
| | - Jacob P Braykovich
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, 49931
| | - Shan Zhao
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, 49931
| | - Jeremy Goldman
- Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan, 49931
| | - Jaroslaw W Drelich
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, 49931
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91
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Van Hecke T, Van Camp J, De Smet S. Oxidation During Digestion of Meat: Interactions with the Diet andHelicobacter pyloriGastritis, and Implications on Human Health. Compr Rev Food Sci Food Saf 2017; 16:214-233. [DOI: 10.1111/1541-4337.12248] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/29/2016] [Accepted: 11/30/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Thomas Van Hecke
- the Laboratory for Animal Nutrition and Animal Product Quality; Ghent Univ.; Ghent Belgium
| | - John Van Camp
- the Unit of Food Chemistry and Human Nutrition; Ghent Univ.; Ghent Belgium
| | - Stefaan De Smet
- the Laboratory for Animal Nutrition and Animal Product Quality; Ghent Univ.; Ghent Belgium
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92
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Gonçalves LC, Seabra AB, Pelegrino MT, de Araujo DR, Bernardes JS, Haddad PS. Superparamagnetic iron oxide nanoparticles dispersed in Pluronic F127 hydrogel: potential uses in topical applications. RSC Adv 2017. [DOI: 10.1039/c6ra28633j] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present study is focused on the synthesis and characterization of nitric oxide (NO)-releasing superparamagnetic iron oxide nanoparticles, and their incorporation in Pluronic F127 hydrogel with great potential for topical applications.
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Affiliation(s)
- L. C. Gonçalves
- Exact and Earth Science Department
- Universidade Federal de São Paulo
- UNIFESP
- Diadema
- Brazil
| | - A. B. Seabra
- Exact and Earth Science Department
- Universidade Federal de São Paulo
- UNIFESP
- Diadema
- Brazil
| | - M. T. Pelegrino
- Exact and Earth Science Department
- Universidade Federal de São Paulo
- UNIFESP
- Diadema
- Brazil
| | - D. R. de Araujo
- Human and Natural Sciences Center
- Universidade Federal do ABC
- UFABC
- Santo André
- Brazil
| | - J. S. Bernardes
- Brazilian Center for Research in Energy and Materials
- CNPEM
- Campinas
- Brazil
| | - P. S. Haddad
- Exact and Earth Science Department
- Universidade Federal de São Paulo
- UNIFESP
- Diadema
- Brazil
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93
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Bailey SJ, Blackwell JR, Wylie LJ, Emery A, Taylor E, Winyard PG, Jones AM. Influence of iodide ingestion on nitrate metabolism and blood pressure following short-term dietary nitrate supplementation in healthy normotensive adults. Nitric Oxide 2016; 63:13-20. [PMID: 28024935 DOI: 10.1016/j.niox.2016.12.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/08/2016] [Accepted: 12/14/2016] [Indexed: 02/07/2023]
Abstract
Uptake of inorganic nitrate (NO3-) into the salivary circulation is a rate-limiting step for dietary NO3- metabolism in mammals. It has been suggested that salivary NO3- uptake occurs in competition with inorganic iodide (I-). Therefore, this study tested the hypothesis that I- supplementation would interfere with NO3- metabolism and blunt blood pressure reductions after dietary NO3- supplementation. Nine healthy adults (4 male, mean ± SD, age 20 ± 1 yr) reported to the laboratory for initial baseline assessment (control) and following six day supplementation periods with 140 mL·day-1 NO3--rich beetroot juice (8.4 mmol NO3-·day-1) and 198 mg potassium gluconate·day-1 (nitrate), and 140 mL·day-1 NO3--rich beetroot juice and 450 μg potassium iodide·day-1 (nitrate + iodide) in a randomized, cross-over experiment. Salivary [I-] was higher in the nitrate + iodide compared to the control and NIT trials (P < 0.05). Salivary and plasma [NO3-] and [NO2-] were higher in the nitrate and nitrate + iodide trials compared to the control trial (P < 0.05). Plasma [NO3-] was higher (474 ± 127 vs. 438 ± 117 μM) and the salivary-plasma [NO3-] ratio was lower (14 ± 6 vs. 20 ± 6 μM), indicative of a lower salivary NO3- uptake, in the nitrate + iodide trial compared to the nitrate trial (P < 0.05). Plasma and salivary [NO2-] were not different between the nitrate and nitrate + iodide trials (P > 0.05). Systolic blood pressure was lower than control (112 ± 13 mmHg) in the nitrate (106 ± 13 mmHg) and nitrate + iodide (106 ± 11 mmHg) trials (P < 0.05), with no differences between the nitrate and nitrate + iodide trials (P > 0.05). In conclusion, co-ingesting NO3- and I- perturbed salivary NO3- uptake, but the increase in salivary and plasma [NO2-] and the lowering of blood pressure were similar compared to NO3- ingestion alone. Therefore, increased dietary I- intake, which is recommended in several countries worldwide as an initiative to offset hypothyroidism, does not appear to compromise the blood pressure reduction afforded by increased dietary NO3- intake.
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Affiliation(s)
- Stephen J Bailey
- Sport and Health Sciences, College of Life and Environmental Sciences, St. Luke's Campus, University of Exeter, Heavitree Road, Exeter, UK.
| | - Jamie R Blackwell
- Sport and Health Sciences, College of Life and Environmental Sciences, St. Luke's Campus, University of Exeter, Heavitree Road, Exeter, UK
| | - Lee J Wylie
- Sport and Health Sciences, College of Life and Environmental Sciences, St. Luke's Campus, University of Exeter, Heavitree Road, Exeter, UK
| | - Annabelle Emery
- Sport and Health Sciences, College of Life and Environmental Sciences, St. Luke's Campus, University of Exeter, Heavitree Road, Exeter, UK
| | - Ellie Taylor
- Sport and Health Sciences, College of Life and Environmental Sciences, St. Luke's Campus, University of Exeter, Heavitree Road, Exeter, UK
| | - Paul G Winyard
- University of Exeter Medical School, St. Luke's Campus, University of Exeter, Heavitree Road, Exeter, UK
| | - Andrew M Jones
- Sport and Health Sciences, College of Life and Environmental Sciences, St. Luke's Campus, University of Exeter, Heavitree Road, Exeter, UK
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94
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Barnes JW, Tonelli AR, Heresi GA, Newman JE, Mellor NE, Grove DE, Dweik RA. Novel methods in pulmonary hypertension phenotyping in the age of precision medicine (2015 Grover Conference series). Pulm Circ 2016; 6:439-447. [PMID: 28090286 PMCID: PMC5210071 DOI: 10.1086/688847] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 08/11/2016] [Indexed: 12/24/2022] Open
Abstract
Among pulmonary vascular diseases, pulmonary hypertension (PH) is the best studied and has been the focus of our work. The current classification of PH is based on a relatively simple combination of patient characteristics and hemodynamics. This leads to inherent limitations, including the inability to customize treatment and the lack of clarity from a more granular identification based on individual patient phenotypes. Accurate phenotyping of PH can be used in the clinic to select therapies and determine prognosis and in research to increase the homogeneity of study cohorts. Rapid advances in the mechanistic understanding of the disease, improved imaging methods, and innovative biomarkers now provide an opportunity to define novel PH phenotypes. We have recently shown that altered metabolism may affect nitric oxide levels and protein glycosylation, the peripheral circulation (which may provide insights into the response to therapy), and exhaled-breath analysis (which may be useful in disease evaluation). This review is based on a talk presented during the 2015 Grover Conference and highlights the relevant literature describing novel methods to phenotype pulmonary arterial hypertension patients by using approaches that involve the pulmonary and systemic (peripheral) vasculature. In particular, abnormalities in metabolism, the pulmonary and peripheral circulation, and exhaled breath in PH may help identify phenotypes that can be the basis for a precision-medicine approach to PH management. These approaches may also have a broader scope and may contribute to a better understanding of other diseases, such as asthma, diabetes, and cancer.
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Affiliation(s)
- Jarrod W. Barnes
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Adriano R. Tonelli
- Department of Pulmonary and Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Gustavo A. Heresi
- Department of Pulmonary and Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jennie E. Newman
- Department of Pulmonary and Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Noël E. Mellor
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - David E. Grove
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Raed A. Dweik
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Pulmonary and Critical Care Medicine, Respiratory Institute, Cleveland Clinic, Cleveland, Ohio, USA
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95
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Tomasova L, Konopelski P, Ufnal M. Gut Bacteria and Hydrogen Sulfide: The New Old Players in Circulatory System Homeostasis. Molecules 2016; 21:E1558. [PMID: 27869680 PMCID: PMC6273628 DOI: 10.3390/molecules21111558] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 10/31/2016] [Accepted: 11/14/2016] [Indexed: 12/16/2022] Open
Abstract
Accumulating evidence suggests that gut bacteria play a role in homeostasis of the circulatory system in mammals. First, gut bacteria may affect the nervous control of the circulatory system via the sensory fibres of the enteric nervous system. Second, gut bacteria-derived metabolites may cross the gut-blood barrier and target blood vessels, the heart and other organs involved in the regulation of the circulatory system. A number of studies have shown that hydrogen sulfide (H₂S) is an important biological mediator in the circulatory system. Thus far, research has focused on the effects of H₂S enzymatically produced by cardiovascular tissues. However, some recent evidence indicates that H₂S released in the colon may also contribute to the control of arterial blood pressure. Incidentally, sulfate-reducing bacteria are ubiquitous in mammalian colon, and H₂S is just one among a number of molecules produced by the gut flora. Other gut bacteria-derived compounds that may affect the circulatory system include methane, nitric oxide, carbon monoxide, trimethylamine or indole. In this paper, we review studies that imply a role of gut microbiota and their metabolites, such as H₂S, in circulatory system homeostasis.
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Affiliation(s)
- Lenka Tomasova
- Department of Experimental Physiology and Pathophysiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw 02 091, Poland.
- Institute of Clinical and Translational Research, Biomedical Research Center, Slovak Academy of Sciences, Bratislava 845 05, Slovakia.
| | - Piotr Konopelski
- Department of Experimental Physiology and Pathophysiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw 02 091, Poland.
| | - Marcin Ufnal
- Department of Experimental Physiology and Pathophysiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw 02 091, Poland.
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96
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Menzel D, Haller H, Wilhelm M, Robenek H. L-Arginine and B vitamins improve endothelial function in subjects with mild to moderate blood pressure elevation. Eur J Nutr 2016; 57:557-568. [PMID: 27817128 PMCID: PMC5845626 DOI: 10.1007/s00394-016-1342-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 10/24/2016] [Indexed: 02/05/2023]
Abstract
Purpose The aim of this trial was to investigate the influence of a dietetic product consisting of a unique combination of l-arginine with the vitamins B6, folic acid and B12 (Telcor® Arginin plus) on endothelial dysfunction. Methods Subjects aged 40–65 years with mild to moderate blood pressure (BP) elevation not treated with anti-hypertensive drugs were randomly assigned to either the dietetic product (n = 40) or a matching placebo (n = 41) for 3 months with open follow-up for a further 3 months. Postprandial change in endothelial function was assessed using the validated reactive hyperaemia index (RHI) at 3 months compared to the study onset (RHI post–pre, visit 3–visit 1; ΔΔRHI). Secondary parameters included BP and plasma homocysteine concentration. Results The primary efficacy analysis revealed superiority of the nutritional intervention over placebo (p = 0.0349) in reducing the deterioration of endothelial function. While in the active group ΔΔRHI increased (0.371 ± 0.122), almost no change could be detected in the placebo group (0.031 ± 0.100), thus demonstrating a significant improvement in vascular function in the intervention group. Moreover, the intervention reduced BP and homocysteine levels. Non-serious adverse events were equally distributed in both groups, and none of the events were assessed as possibly intervention-related by the investigators. Conclusions This trial confirmed the effective and safe use of dietary management with l-arginine in combination with B vitamins. The primary efficacy analysis demonstrated a statistically significant superiority of the combination of l-arginine with B vitamins over placebo in improving and restoring impaired endothelial function and lowering BP in patients with mild to moderate blood pressure elevation.
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Affiliation(s)
| | - Hermann Haller
- Department of Nephrology and Hypertension Medicine, Hannover Medical School, University of Hannover, Hannover, Germany
| | | | - Horst Robenek
- University Clinic Münster, Albert-Schweitzer-Campus 1, Domagkstr. 3, 48149, Münster, Germany.
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97
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Dragovich MA, Chester D, Fu BM, Wu C, Xu Y, Goligorsky MS, Zhang XF. Mechanotransduction of the endothelial glycocalyx mediates nitric oxide production through activation of TRP channels. Am J Physiol Cell Physiol 2016; 311:C846-C853. [PMID: 27681180 DOI: 10.1152/ajpcell.00288.2015] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 09/26/2016] [Indexed: 01/28/2023]
Abstract
The endothelial surface glycocalyx (ESG) is a carbohydrate-rich layer found on the vascular endothelium, serving critical functions in the mechanotransduction of blood flow-induced forces. One of the most important protective functions of the ESG is to mediate the production of nitric oxide (NO) in response to blood flow. However, the detailed mechanism underlying ESG's mechanotransduction of the production of NO has not been completely identified. Herein, using the cultured rat brain microvascular endothelial cells (bEnd.3) as a model system, we have implemented a combined atomic force and fluorescence microscopy approach to show that the ESG senses and transduces vertical mechanical stretch to produce NO. This rapid NO production is dependent on the presence of both heparan sulfate (HS) and hyaluronic acid (HA) in ESG, as the removal of HS and/or HA leads to a significant decrease in NO production. Moreover, the production of NO is dependent on the intake of Ca2+ via endothelial transient receptor potential (TRP) channels. Together, our results demonstrate the molecular mechanism of rapid production of NO in response to vertical mechanical stretch.
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Affiliation(s)
- Matthew A Dragovich
- Department of Mechanical Engineering & Mechanics, Lehigh University, Bethlehem, Pennsylvania
| | - Daniel Chester
- Bioengineering Program, Lehigh University, Bethlehem, Pennsylvania
| | - Bingmei M Fu
- Department of Biomedical Engineering, The City College of the City University of New York, New York, New York; and
| | - Chenyu Wu
- Bioengineering Program, Lehigh University, Bethlehem, Pennsylvania
| | - Yan Xu
- Department of Mechanical Engineering & Mechanics, Lehigh University, Bethlehem, Pennsylvania
| | - Michael S Goligorsky
- Department of Medicine and Pharmacology, New York Medical College, Valhalla, New York
| | - X Frank Zhang
- Department of Mechanical Engineering & Mechanics, Lehigh University, Bethlehem, Pennsylvania; .,Bioengineering Program, Lehigh University, Bethlehem, Pennsylvania
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98
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Nakada Y, Yamamoto I, Horita S, Kobayashi A, Mafune A, Katsumata H, Yamakawa T, Katsuma A, Kawabe M, Tanno Y, Ohkido I, Tsuboi N, Yamamoto H, Okumi M, Ishida H, Yokoo T, Tanabe K. The prognostic values of caveolin-1 immunoreactivity in peritubular capillaries in patients with kidney transplantation. Clin Transplant 2016; 30:1417-1424. [PMID: 27543925 DOI: 10.1111/ctr.12833] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2016] [Indexed: 12/24/2022]
Abstract
The low sensitivity of C4d immunoreactivity in peritubular capillaries (PTCs) hinders its use in the diagnosis of chronic active antibody-mediated rejection (CAAMR). C4d-negative CAAMR was defined in the 2013 Banff classification, which included the expression of endothelial-associated transcripts (ENDATs). We previously showed that the ENDAT caveolin-1 (CAV-1) is a distinct feature of CAAMR. In this study, we investigated the prognostic value of CAV-1 immunoreactivity in PTCs in kidney transplant patients. Ninety-eight kidney transplant recipients were included in this study. The prognostic value of CAV-1 immunoreactivity in PTCs was evaluated by double immunostaining for CAV-1 and pathologische Anatomie Leiden endothelium (PAL-E, a PTC marker) in the PTCs of kidney allograft biopsy samples. The patients were divided into two groups: CAV-1/PAL-E<50% and CAV-1/PAL-E≥50%. Kaplan-Meier curves showed that CAV-1/PAL-E≥50% patients had a significantly worse prognosis than that of CAV-1/PAL-E<50% patients (log-rank; P<.001). C4d staining of PTCs was not associated with the development of graft failure (log-rank; P=.345), whereas in a multivariate Cox regression analysis, CAV-1 immunoreactivity in PTCs was independently associated with graft failure (hazard ratio: 11.1; P=.0324). CAV-1 immunoreactivity in PTCs may serve as a prognostic marker for kidney allograft survival.
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Affiliation(s)
- Yasuyuki Nakada
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Izumi Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.
| | - Shigeru Horita
- Department of Medicine, Kidney Center, Tokyo Women's Medical University, Tokyo, Japan
| | - Akimitsu Kobayashi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Aki Mafune
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Haruki Katsumata
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Takafumi Yamakawa
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ai Katsuma
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Mayuko Kawabe
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Yudo Tanno
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Ichiro Ohkido
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuo Tsuboi
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Hiroyasu Yamamoto
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan.,Department of Internal Medicine, Atsugi City Hospital, Kanagawa, Japan
| | - Masayoshi Okumi
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Hideki Ishida
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
| | - Takashi Yokoo
- Division of Nephrology and Hypertension, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan
| | - Kazunari Tanabe
- Department of Urology, Tokyo Women's Medical University, Tokyo, Japan
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99
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Forte M, Conti V, Damato A, Ambrosio M, Puca AA, Sciarretta S, Frati G, Vecchione C, Carrizzo A. Targeting Nitric Oxide with Natural Derived Compounds as a Therapeutic Strategy in Vascular Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:7364138. [PMID: 27651855 PMCID: PMC5019908 DOI: 10.1155/2016/7364138] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/30/2016] [Accepted: 08/01/2016] [Indexed: 12/20/2022]
Abstract
Within the family of endogenous gasotransmitters, nitric oxide (NO) is the smallest gaseous intercellular messenger involved in the modulation of several processes, such as blood flow and platelet aggregation control, essential to maintain vascular homeostasis. NO is produced by nitric oxide synthases (NOS) and its effects are mediated by cGMP-dependent or cGMP-independent mechanisms. Growing evidence suggests a crosstalk between the NO signaling and the occurrence of oxidative stress in the onset and progression of vascular diseases, such as hypertension, heart failure, ischemia, and stroke. For these reasons, NO is considered as an emerging molecular target for developing therapeutic strategies for cardio- and cerebrovascular pathologies. Several natural derived compounds, such as polyphenols, are now proposed as modulators of NO-mediated pathways. The aim of this review is to highlight the experimental evidence on the involvement of nitric oxide in vascular homeostasis focusing on the therapeutic potential of targeting NO with some natural compounds in patients with vascular diseases.
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Affiliation(s)
- Maurizio Forte
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
| | - Valeria Conti
- Università degli Studi di Salerno, Medicine, Surgery and Dentistry, Baronissi, Italy
| | - Antonio Damato
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
| | | | - Annibale A. Puca
- Università degli Studi di Salerno, Medicine, Surgery and Dentistry, Baronissi, Italy
- IRCCS Multimedica, Milan, Italy
| | - Sebastiano Sciarretta
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Giacomo Frati
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Carmine Vecchione
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
- Università degli Studi di Salerno, Medicine, Surgery and Dentistry, Baronissi, Italy
| | - Albino Carrizzo
- IRCCS Neuromed, Vascular Physiopathology Unit, Pozzilli, Italy
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100
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Endothelial progenitor cells accelerate the resolution of deep vein thrombosis. Vascul Pharmacol 2016; 83:10-6. [DOI: 10.1016/j.vph.2015.07.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 06/27/2015] [Accepted: 07/11/2015] [Indexed: 11/23/2022]
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