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Morales N, Valdés-Muñoz E, González J, Valenzuela-Hormazábal P, Palma JM, Galarza C, Catagua-González Á, Yáñez O, Pereira A, Bustos D. Machine Learning-Driven Classification of Urease Inhibitors Leveraging Physicochemical Properties as Effective Filter Criteria. Int J Mol Sci 2024; 25:4303. [PMID: 38673888 PMCID: PMC11049951 DOI: 10.3390/ijms25084303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Urease, a pivotal enzyme in nitrogen metabolism, plays a crucial role in various microorganisms, including the pathogenic Helicobacter pylori. Inhibiting urease activity offers a promising approach to combating infections and associated ailments, such as chronic kidney diseases and gastric cancer. However, identifying potent urease inhibitors remains challenging due to resistance issues that hinder traditional approaches. Recently, machine learning (ML)-based models have demonstrated the ability to predict the bioactivity of molecules rapidly and effectively. In this study, we present ML models designed to predict urease inhibitors by leveraging essential physicochemical properties. The methodological approach involved constructing a dataset of urease inhibitors through an extensive literature search. Subsequently, these inhibitors were characterized based on physicochemical properties calculations. An exploratory data analysis was then conducted to identify and analyze critical features. Ultimately, 252 classification models were trained, utilizing a combination of seven ML algorithms, three attribute selection methods, and six different strategies for categorizing inhibitory activity. The investigation unveiled discernible trends distinguishing urease inhibitors from non-inhibitors. This differentiation enabled the identification of essential features that are crucial for precise classification. Through a comprehensive comparison of ML algorithms, tree-based methods like random forest, decision tree, and XGBoost exhibited superior performance. Additionally, incorporating the "chemical family type" attribute significantly enhanced model accuracy. Strategies involving a gray-zone categorization demonstrated marked improvements in predictive precision. This research underscores the transformative potential of ML in predicting urease inhibitors. The meticulous methodology outlined herein offers actionable insights for developing robust predictive models within biochemical systems.
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Affiliation(s)
- Natalia Morales
- Magíster en Ciencias de la Computación, Universidad Católica del Maule, Talca 3460000, Chile
| | - Elizabeth Valdés-Muñoz
- Doctorado en Biotecnología Traslacional, Centro de Biotecnología de los Recursos Naturales, Universidad Católica del Maule, Talca 3480094, Chile
| | - Jaime González
- Magíster en Ciencias de la Computación, Universidad Católica del Maule, Talca 3460000, Chile
| | | | - Jonathan M Palma
- Facultad de Ingeniería, Universidad de Talca, Curicó 3344158, Chile
| | - Christian Galarza
- Departamento de Matemáticas, Facultad de Ciencias Naturales y Matemáticas, Escuela Superior Politécnica del Litoral, Guayaquil EC090903, Ecuador
| | - Ángel Catagua-González
- Departamento de Matemáticas, Facultad de Ciencias Naturales y Matemáticas, Escuela Superior Politécnica del Litoral, Guayaquil EC090903, Ecuador
| | - Osvaldo Yáñez
- Núcleo de Investigación en Data Science, Facultad de Ingeniería y Negocios, Universidad de las Américas, Santiago 7500000, Chile
| | - Alfredo Pereira
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Bellavista 7, Santiago 8420524, Chile
| | - Daniel Bustos
- Laboratorio de Bioinformática y Química Computacional, Departamento de Medicina Traslacional, Facultad de Medicina, Universidad Católica del Maule, Talca 3480094, Chile
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2
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Valenzuela-Hormazabal P, Sepúlveda RV, Alegría-Arcos M, Valdés-Muñoz E, Rojas-Pérez V, González-Bonet I, Suardíaz R, Galarza C, Morales N, Leddermann V, Castro RI, Benso B, Urra G, Hernández-Rodríguez EW, Bustos D. Unveiling Novel Urease Inhibitors for Helicobacter pylori: A Multi-Methodological Approach from Virtual Screening and ADME to Molecular Dynamics Simulations. Int J Mol Sci 2024; 25:1968. [PMID: 38396647 PMCID: PMC10888695 DOI: 10.3390/ijms25041968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/20/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
Helicobacter pylori (Hp) infections pose a global health challenge demanding innovative therapeutic strategies by which to eradicate them. Urease, a key Hp virulence factor hydrolyzes urea, facilitating bacterial survival in the acidic gastric environment. In this study, a multi-methodological approach combining pharmacophore- and structure-based virtual screening, molecular dynamics simulations, and MM-GBSA calculations was employed to identify novel inhibitors for Hp urease (HpU). A refined dataset of 8,271,505 small molecules from the ZINC15 database underwent pharmacokinetic and physicochemical filtering, resulting in 16% of compounds for pharmacophore-based virtual screening. Molecular docking simulations were performed in successive stages, utilizing HTVS, SP, and XP algorithms. Subsequent energetic re-scoring with MM-GBSA identified promising candidates interacting with distinct urease variants. Lys219, a residue critical for urea catalysis at the urease binding site, can manifest in two forms, neutral (LYN) or carbamylated (KCX). Notably, the evaluated molecules demonstrated different interaction and energetic patterns in both protein variants. Further evaluation through ADMET predictions highlighted compounds with favorable pharmacological profiles, leading to the identification of 15 candidates. Molecular dynamics simulations revealed comparable structural stability to the control DJM, with candidates 5, 8 and 12 (CA5, CA8, and CA12, respectively) exhibiting the lowest binding free energies. These inhibitors suggest a chelating capacity that is crucial for urease inhibition. The analysis underscores the potential of CA5, CA8, and CA12 as novel HpU inhibitors. Finally, we compare our candidates with the chemical space of urease inhibitors finding physicochemical similarities with potent agents such as thiourea.
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Affiliation(s)
- Paulina Valenzuela-Hormazabal
- Departamento de Farmacología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción 4030000, Chile;
| | - Romina V. Sepúlveda
- Center for Bioinformatics and Integrative Biology, Facultad de Ciencias de la Vida, Universidad Andres Bello, Av. República 330, Santiago 8370146, Chile;
| | - Melissa Alegría-Arcos
- Núcleo de Investigación en Data Science, Facultad de Ingeniería y Negocios, Universidad de las Américas, Santiago 7500000, Chile;
| | - Elizabeth Valdés-Muñoz
- Doctorado en Biotecnología Traslacional, Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Talca 3480094, Chile; (E.V.-M.); (V.R.-P.)
| | - Víctor Rojas-Pérez
- Doctorado en Biotecnología Traslacional, Facultad de Ciencias Agrarias y Forestales, Universidad Católica del Maule, Talca 3480094, Chile; (E.V.-M.); (V.R.-P.)
| | - Ileana González-Bonet
- Biomedical Research Labs, Facultad de Medicina, Universidad Católica del Maule, Talca 3480094, Chile;
| | - Reynier Suardíaz
- Departamento de Química Física, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain;
| | - Christian Galarza
- Departamento de Matemáticas, Facultad de Ciencias Naturales y Matemáticas, Escuela Superior Politécnica del Litoral, Guayaquil 090112, Ecuador;
| | - Natalia Morales
- Magíster en Ciencias de la Computación, Universidad Católica del Maule, Talca 3460000, Chile; (N.M.); (V.L.)
| | - Verónica Leddermann
- Magíster en Ciencias de la Computación, Universidad Católica del Maule, Talca 3460000, Chile; (N.M.); (V.L.)
| | - Ricardo I. Castro
- Multidisciplinary Agroindustry Research Laboratory, Instituto de Ciencias Aplicadas, Facultad de Arquitectura, Construcción y Medio Ambiente, Universidad Autónoma de Chile, Cinco Pte. N°1670, Talca 3467987, Chile;
| | - Bruna Benso
- School of Dentistry, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago 7810000, Chile;
| | - Gabriela Urra
- Laboratorio de Bioinformática y Química Computacional, Departamento de Medicina Traslacional, Facultad de Medicina, Universidad Católica del Maule, Talca 3480094, Chile;
| | - Erix W. Hernández-Rodríguez
- Laboratorio de Bioinformática y Química Computacional, Departamento de Medicina Traslacional, Facultad de Medicina, Universidad Católica del Maule, Talca 3480094, Chile;
- Unidad de Bioinformática Clínica, Centro Oncológico, Facultad de Medicina, Universidad Católica del Maule, Talca 3480094, Chile
| | - Daniel Bustos
- Laboratorio de Bioinformática y Química Computacional, Departamento de Medicina Traslacional, Facultad de Medicina, Universidad Católica del Maule, Talca 3480094, Chile;
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3
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Morgado BE, Sicardy B, Braga-Ribas F, Ortiz JL, Salo H, Vachier F, Desmars J, Pereira CL, Santos-Sanz P, Sfair R, de Santana T, Assafin M, Vieira-Martins R, Gomes-Júnior AR, Margoti G, Dhillon VS, Fernández-Valenzuela E, Broughton J, Bradshaw J, Langersek R, Benedetti-Rossi G, Souami D, Holler BJ, Kretlow M, Boufleur RC, Camargo JIB, Duffard R, Beisker W, Morales N, Lecacheux J, Rommel FL, Herald D, Benz W, Jehin E, Jankowsky F, Marsh TR, Littlefair SP, Bruno G, Pagano I, Brandeker A, Collier-Cameron A, Florén HG, Hara N, Olofsson G, Wilson TG, Benkhaldoun Z, Busuttil R, Burdanov A, Ferrais M, Gault D, Gillon M, Hanna W, Kerr S, Kolb U, Nosworthy P, Sebastian D, Snodgrass C, Teng JP, de Wit J. Author Correction: A dense ring of the trans-Neptunian object Quaoar outside its Roche limit. Nature 2024; 626:E2. [PMID: 38228877 DOI: 10.1038/s41586-024-07031-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Affiliation(s)
- B E Morgado
- Federal University of Rio de Janeiro - Observatory of Valongo, Rio de Janeiro, Brazil.
- National Observatory/MCTI, Rio de Janeiro, Brazil.
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil.
| | - B Sicardy
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
| | - F Braga-Ribas
- Federal University of Technology, Paraná (UTFPR/DAFIS), Curitiba, Brazil
| | - J L Ortiz
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - H Salo
- Space Physics and Astronomy Research unit, University of Oulu, Oulu, Finland
| | - F Vachier
- The Institute of Celestial Mechanics and Ephemeris Calculation (IMCCE), Observatory of Paris, PSL Research University, CNRS, Sorbonne University, UPMC University of Paris, University of Lille, Lille, France
| | - J Desmars
- The Institute of Celestial Mechanics and Ephemeris Calculation (IMCCE), Observatory of Paris, PSL Research University, CNRS, Sorbonne University, UPMC University of Paris, University of Lille, Lille, France
- Polytechnic Institute of Advanced Sciences (IPSA), Ivry-sur-Seine, France
| | - C L Pereira
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - P Santos-Sanz
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - R Sfair
- Institute for Astronomy and Astrophysics, Eberhard Karls University of Tübingen, Tübingen, Germany
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - T de Santana
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - M Assafin
- Federal University of Rio de Janeiro - Observatory of Valongo, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - R Vieira-Martins
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - A R Gomes-Júnior
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
- Institute of Physics, Federal University of Uberlândia, Uberlândia, Brazil
| | - G Margoti
- Federal University of Technology, Paraná (UTFPR/DAFIS), Curitiba, Brazil
| | - V S Dhillon
- Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
- Institute of Astrophysics of The Canary Islands, La Laguna, Spain
| | | | - J Broughton
- Reedy Creek Observatory, Gold Coast, Queensland, Australia
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - J Bradshaw
- Samford Valley Observatory (Q79), Brisbane, Queensland, Australia
| | - R Langersek
- Algester Astronomical Observatory, Brisbane, Queensland, Australia
| | - G Benedetti-Rossi
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - D Souami
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
- Observatory of the Côte d'Azur, Lagrange Laboratory UMR7293 CNRS, Nice, France
- naXys, University of Namur, Namur, Belgium
| | - B J Holler
- Space Telescope Science Institute, Baltimore, MD, USA
| | - M Kretlow
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
- International Occultation Timing Association / European Section, Hannover, Germany
- International Amateur Observatory e.V. (IAS), Mittenwalde, Germany
| | - R C Boufleur
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - J I B Camargo
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - R Duffard
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - W Beisker
- International Occultation Timing Association / European Section, Hannover, Germany
- International Amateur Observatory e.V. (IAS), Mittenwalde, Germany
| | - N Morales
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - J Lecacheux
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
| | - F L Rommel
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - D Herald
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - W Benz
- Institute of Physics, University of Bern, Bern, Switzerland
- Center for Space and Habitability, University of Bern, Bern, Switzerland
| | - E Jehin
- STAR Institute, University of Liège, Liège, Belgium
| | - F Jankowsky
- Heidelberg-Königstuhl State Observatory, Heidelberg, Germany
| | - T R Marsh
- Department of Physics, University of Warwick, Coventry, UK
| | - S P Littlefair
- Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
| | - G Bruno
- INAF, Catania Astrophysical Observatory, Catania, Italy
| | - I Pagano
- INAF, Catania Astrophysical Observatory, Catania, Italy
| | - A Brandeker
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - A Collier-Cameron
- Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
| | - H G Florén
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - N Hara
- Astronomical Observatory at the University of Geneva, Versoix, Switzerland
| | - G Olofsson
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - T G Wilson
- Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
| | - Z Benkhaldoun
- Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, FSSM, Cadi Ayyad University, Marrakech, Morocco
| | - R Busuttil
- School of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK
| | - A Burdanov
- Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, USA
| | - M Ferrais
- Laboratory of Astrophysics of Marseille, University of Aix Marseille, CNRS, CNES, Marseille, France
| | - D Gault
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - M Gillon
- Astrobiology Research Unit, University of Liège, Liège, Belgium
| | - W Hanna
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - S Kerr
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
- Astronomical Association of Queensland, Pimpama, Queensland, Australia
| | - U Kolb
- School of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK
| | - P Nosworthy
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - D Sebastian
- School of Physics and Astronomy, University of Birmingham, Birmingham, UK
| | - C Snodgrass
- Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh, UK
| | - J P Teng
- AGORA Observatory of Makes, AGORA, La Rivière, France
| | - J de Wit
- Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, USA
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4
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Morales N, Thickett SC, Maya F. Sponge-nested polymer monoliths: Versatile materials for the solid-phase extraction of bisphenols. J Sep Sci 2023; 46:e2300378. [PMID: 37528734 DOI: 10.1002/jssc.202300378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/23/2023] [Accepted: 07/24/2023] [Indexed: 08/03/2023]
Abstract
Polymer monoliths are promising materials for sample preparation due to their high porosity, pH stability, and simple preparation. The use of melamine formaldehyde foams has been reported as an effective support to prepare highly robust silica and polymer monoliths. Herein, divinylbenzene monoliths based on a 50:50 (%, w/w) crosslinker/porogen ratio have been nested within a melamine-formaldehyde sponge, resulting in monoliths with a surface area higher than 400 m2 /g. The extraction performance of these monoliths was evaluated for the extraction of endocrine-disrupting bisphenols from aqueous solutions. We evaluated for the first time the versatility of sponge-nested polymer monoliths by comparing three different extraction modes (vortex mixing, magnetic stirring, and orbital shaking). Vortex mixing showed a comparable recovery of bisphenols (39%-81%) in a shorter extraction time (30 min, instead of 2 h). In addition, the robustness of the sponge-nested polymer monoliths was demonstrated for the first time by reshaping a larger monolithic cube (0.125 cm3 ) into four smaller pieces (4 × 0.03125 cm3 ) leading to a 16%-21% increase in extraction efficiency. This effect was attributed to an increase in the effective contact area with the sample, obtaining a higher analyte extraction capacity.
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Affiliation(s)
- Natalia Morales
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania, Australia
| | - Stuart C Thickett
- School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania, Australia
| | - Fernando Maya
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania, Australia
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5
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Morgado BE, Sicardy B, Braga-Ribas F, Ortiz JL, Salo H, Vachier F, Desmars J, Pereira CL, Santos-Sanz P, Sfair R, de Santana T, Assafin M, Vieira-Martins R, Gomes-Júnior AR, Margoti G, Dhillon VS, Fernández-Valenzuela E, Broughton J, Bradshaw J, Langersek R, Benedetti-Rossi G, Souami D, Holler BJ, Kretlow M, Boufleur RC, Camargo JIB, Duffard R, Beisker W, Morales N, Lecacheux J, Rommel FL, Herald D, Benz W, Jehin E, Jankowsky F, Marsh TR, Littlefair SP, Bruno G, Pagano I, Brandeker A, Collier-Cameron A, Florén HG, Hara N, Olofsson G, Wilson TG, Benkhaldoun Z, Busuttil R, Burdanov A, Ferrais M, Gault D, Gillon M, Hanna W, Kerr S, Kolb U, Nosworthy P, Sebastian D, Snodgrass C, Teng JP, de Wit J. A dense ring of the trans-Neptunian object Quaoar outside its Roche limit. Nature 2023; 614:239-243. [PMID: 36755175 DOI: 10.1038/s41586-022-05629-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 12/06/2022] [Indexed: 02/10/2023]
Abstract
Planetary rings are observed not only around giant planets1, but also around small bodies such as the Centaur Chariklo2 and the dwarf planet Haumea3. Up to now, all known dense rings were located close enough to their parent bodies, being inside the Roche limit, where tidal forces prevent material with reasonable densities from aggregating into a satellite. Here we report observations of an inhomogeneous ring around the trans-Neptunian body (50000) Quaoar. This trans-Neptunian object has an estimated radius4 of 555 km and possesses a roughly 80-km satellite5 (Weywot) that orbits at 24 Quaoar radii6,7. The detected ring orbits at 7.4 radii from the central body, which is well outside Quaoar's classical Roche limit, thus indicating that this limit does not always determine where ring material can survive. Our local collisional simulations show that elastic collisions, based on laboratory experiments8, can maintain a ring far away from the body. Moreover, Quaoar's ring orbits close to the 1/3 spin-orbit resonance9 with Quaoar, a property shared by Chariklo's2,10,11 and Haumea's3 rings, suggesting that this resonance plays a key role in ring confinement for small bodies.
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Affiliation(s)
- B E Morgado
- Federal University of Rio de Janeiro - Observatory of Valongo, Rio de Janeiro, Brazil.
- National Observatory/MCTI, Rio de Janeiro, Brazil.
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil.
| | - B Sicardy
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
| | - F Braga-Ribas
- Federal University of Technology, Paraná (UTFPR/DAFIS), Curitiba, Brazil
| | - J L Ortiz
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - H Salo
- Space Physics and Astronomy Research unit, University of Oulu, Oulu, Finland
| | - F Vachier
- The Institute of Celestial Mechanics and Ephemeris Calculation (IMCCE), Observatory of Paris, PSL Research University, CNRS, Sorbonne University, UPMC University of Paris, University of Lille, Lille, France
| | - J Desmars
- The Institute of Celestial Mechanics and Ephemeris Calculation (IMCCE), Observatory of Paris, PSL Research University, CNRS, Sorbonne University, UPMC University of Paris, University of Lille, Lille, France
- Polytechnic Institute of Advanced Sciences (IPSA), Ivry-sur-Seine, France
| | - C L Pereira
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - P Santos-Sanz
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - R Sfair
- Institute for Astronomy and Astrophysics, Eberhard Karls University of Tübingen, Tübingen, Germany
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - T de Santana
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - M Assafin
- Federal University of Rio de Janeiro - Observatory of Valongo, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - R Vieira-Martins
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - A R Gomes-Júnior
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
- Institute of Physics, Federal University of Uberlândia, Uberlândia, Brazil
| | - G Margoti
- Federal University of Technology, Paraná (UTFPR/DAFIS), Curitiba, Brazil
| | - V S Dhillon
- Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
- Institute of Astrophysics of The Canary Islands, La Laguna, Spain
| | | | - J Broughton
- Reedy Creek Observatory, Gold Coast, Queensland, Australia
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - J Bradshaw
- Samford Valley Observatory (Q79), Brisbane, Queensland, Australia
| | - R Langersek
- Algester Astronomical Observatory, Brisbane, Queensland, Australia
| | - G Benedetti-Rossi
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
- Orbital Dynamics and Planetology Group, UNESP - São Paulo State University, Guaratinguetá, Brazil
| | - D Souami
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
- Observatory of the Côte d'Azur, Lagrange Laboratory UMR7293 CNRS, Nice, France
- naXys, University of Namur, Namur, Belgium
| | - B J Holler
- Space Telescope Science Institute, Baltimore, MD, USA
| | - M Kretlow
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
- International Occultation Timing Association / European Section, Hannover, Germany
- International Amateur Observatory e.V. (IAS), Mittenwalde, Germany
| | - R C Boufleur
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - J I B Camargo
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - R Duffard
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - W Beisker
- International Occultation Timing Association / European Section, Hannover, Germany
- International Amateur Observatory e.V. (IAS), Mittenwalde, Germany
| | - N Morales
- Institute of Astrophysics at Andalucía, IAA-CSIC, Granada, Spain
| | - J Lecacheux
- LESIA, Observatory of Paris, University PSL, CNRS, UPMC, Sorbonne University, University of Paris Diderot, Sorbonne Paris City, Meudon, France
| | - F L Rommel
- National Observatory/MCTI, Rio de Janeiro, Brazil
- Interinstitutional e-Astronomy Laboratory (LIneA), Rio de Janeiro, Brazil
| | - D Herald
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - W Benz
- Institute of Physics, University of Bern, Bern, Switzerland
- Center for Space and Habitability, University of Bern, Bern, Switzerland
| | - E Jehin
- STAR Institute, University of Liège, Liège, Belgium
| | - F Jankowsky
- Heidelberg-Königstuhl State Observatory, Heidelberg, Germany
| | - T R Marsh
- Department of Physics, University of Warwick, Coventry, UK
| | - S P Littlefair
- Department of Physics and Astronomy, University of Sheffield, Sheffield, UK
| | - G Bruno
- INAF, Catania Astrophysical Observatory, Catania, Italy
| | - I Pagano
- INAF, Catania Astrophysical Observatory, Catania, Italy
| | - A Brandeker
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - A Collier-Cameron
- Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
| | - H G Florén
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - N Hara
- Astronomical Observatory at the University of Geneva, Versoix, Switzerland
| | - G Olofsson
- Department of Astronomy, Stockholm University, AlbaNova University Center, Stockholm, Sweden
| | - T G Wilson
- Centre for Exoplanet Science, SUPA School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
| | - Z Benkhaldoun
- Oukaimeden Observatory, High Energy Physics and Astrophysics Laboratory, FSSM, Cadi Ayyad University, Marrakech, Morocco
| | - R Busuttil
- School of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK
| | - A Burdanov
- Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, USA
| | - M Ferrais
- Laboratory of Astrophysics of Marseille, University of Aix Marseille, CNRS, CNES, Marseille, France
| | - D Gault
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - M Gillon
- Astrobiology Research Unit, University of Liège, Liège, Belgium
| | - W Hanna
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - S Kerr
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
- Astronomical Association of Queensland, Pimpama, Queensland, Australia
| | - U Kolb
- School of Physical Sciences, The Open University, Walton Hall, Milton Keynes, UK
| | - P Nosworthy
- Trans-Tasman Occultation Alliance (TTOA), Wellington, New Zealand
| | - D Sebastian
- School of Physics and Astronomy, University of Birmingham, Birmingham, UK
| | - C Snodgrass
- Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh, UK
| | - J P Teng
- AGORA Observatory of Makes, AGORA, La Rivière, France
| | - J de Wit
- Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, USA
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6
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Morales N, Thickett SC, Maya F. Sponge-nested polymer monolith sorptive extraction. J Chromatogr A 2023; 1687:463668. [PMID: 36463645 DOI: 10.1016/j.chroma.2022.463668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/24/2022]
Abstract
Polymer monoliths are an alternative to traditional particle-packed supports used in solid-phase extraction because of their ease of preparation, high porosity, and pH stability. They often required the attachment of monoliths to a support, such as the internal walls of a column to enable their use for sample preparation. Applications of free-standing polymer monoliths are rarely found because of their limited mechanical stability. Herein, divinylbenzene monoliths were polymerised within a commercial melamine-formaldehyde sponge using different polymerisation times. The sponge-nested polymer monoliths are highly robust, and their size and shape can be easily adjusted for desired applications. The prepared sponge-nested polymer monoliths had surface areas in the range of 237 m2 g-1 to 369 m2 g-1. A melamine-formaldehyde sponge cut into 1 cm3 cubes were used to template the polymer monoliths. Miniaturized monoliths with a size of 0.125 cm3 were directly cut from the larger cubes without compromising the integrity of the porous monolith structure. The resulting nested monolith sorptive extraction (NMSE) supports were applied for the extraction of the endocrine disruptors bisphenol A, 4-tert-butylphenol, and 4-tert-octylphenol. The prepared sponge-nested monoliths are low-cost (40 monoliths/AU$). NMSE was carried out by the direct immersion of the monoliths in the aqueous standards/samples, requiring only an orbital shaker for the extraction procedure. Best performance was obtained for polymer monoliths polymerized for 6 h, enabling limits of detection of 5.6 to 6.5 µg L-1 for the selected analysis using HPLC-UV.
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Affiliation(s)
- Natalia Morales
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Stuart C Thickett
- School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania 7005, Australia
| | - Fernando Maya
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences (Chemistry), University of Tasmania, Hobart, Tasmania 7001, Australia.
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7
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Morales N, Collazos F, Qureshi A. Mental Health of Unaccompanied Immigrant Youth. Eur Psychiatry 2022. [PMCID: PMC9564757 DOI: 10.1192/j.eurpsy.2022.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The number of UMY in Spain is increasing, since the early 1990s, mostly coming from the Maghreb, although the number of those coming from different sub-Saharan African countries has gradually increased. Most of them leave their countries fleeing poverty, violence, and in search of better opportunities. They may be influenced by traumatic experiences and social stressors that can lead to emotional distress and mental health problems. They have particular needs and characteristics, so the local Child Protection Systems need to adapt their procedures to facilitate the youngsters’ social Integration and psychosocial development. This presentation will describe an ongoing project being carried out in Catalonia, the main objective is to guarantee the right to mental health of UMY in the Protection System through culturally competent biopsychosocial care, and to effectively coordinate care between the public mental health network and the Child Protection System. Finally, through training and the acquisition of competencies, the aim is to avoid burnout in professionals who care for these youths on the front line. The approach is consistent with the cultural consultation models developed in Montreal and London with the goal of providing structural support for localized and culturally competent responses. This project, to be developed over two years, has four main subprojects: 1. On-line training for professionals in “Cultural competence in mental health and psychosocial intervention”. 2. Training of “peer” UMY as “Community Mental Health Agents”. 3. Creation and implementation of multidisciplinary groups of psychosocial intervention. 4. Culturally competent psychiatric and psychological assessment.
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8
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Qureshi A, Morales N, Collazos F. Peer Counseling in a Community Based Intervention for Unaccompanied Immigrant Youth. Eur Psychiatry 2022. [PMCID: PMC9564493 DOI: 10.1192/j.eurpsy.2022.151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Abstract Body Uaccompanied migrant youth represent an at-risk population given the complexity of negotiating adolescence in a new culture, isolated from family and friends, without a secure base and subject to discrimination. In addition, many unaccompanied migrant youth have been subject to considerable trauma prior to, during, and post migration. In Spain, as in many countries, the residential, care, and mental health services are not adapted to the specific and complex needs of this population, and to that end complex not only are the youth not well served but providers are increasingly frustrated. The figure of the community health agent has been widely recognized as one that can function as an effective bridge between systems/institutions and marginalized and vulnerable populations. In this presentation we will describe an ongoing project that trains unaccompanied migrant youth who show promise in their cultural adaptation in the areas of cultural competence, mental health care and substance abuse to function as community health agents (or peer counselors) consistent with models of cultural consultation. Disclosure No significant relationships.
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Harada Ribeiro M, Quadros A, Padilla LT, Belli KC, Piccaro P, Dallan LA, Silveira CE, Quesada FH, Morales N, Santiago R, Mashayekhi KC, Azzalini LA, Galassi AR, Campos CM. Coronary perforations and its clinical impact during CTO recanalization: a 2054 patients pooled analysis from the Latin American (LATAM) CTO registry. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Percutaneous coronary intervention (PCI) of chronic total occlusions (CTO) are the most challenging procedures and still associated with the highest complications rates. Coronary perforation is a life-threatening acute PCI complication, but data are limited regarding its impact on mid-term outcome. We aimed to assess 30-days and 1-year outcomes in CTO PCI patients with coronary perforations.
Purpose
Analyze the clinical impact of Cto perforations during CTO PCI at short and mid-term in a muticenter continental registry in Latin America (LATAM).
Methods
We analyzed data from the continental multicenter Latin America CTO Registry including patients who underwent CTO PCI in 57 centers from 9 countries. Coronary perforation during the index procedure were categorized according to Ellis classification. We assessed 30-days adverse events and 1-year major adverse cardiac and cerebrovascular (MACCE) defined as the composite of all-cause death, myocardial infarction (MI), target vessel revascularization and stroke. MI was defined according both the LATAM CTO protocol and SCAI definitions.
Results
From January 2015 to October 2018, 2054 patients underwent CTO PCI. The median J-CTO score was 2.0 (1.0–3.0) and the median Progress score was 1.0 (0.0–2.0). The overall perforation rate was 3.7% (n=76) in which 55% were Ellis class 1, 24% Ellis class 2 and 21% Ellis class 3. No differences were found in any baseline clinical characteristics. Patients with perforation had more frequently retrograde instrumentation (P<0.01) and antegrade knuckle wire (P<0.01) and lower success rate (P<0.01). At 30-days, perforations were associated with more heart failure (6.6% vs 1.5%, p<0.01), bleeding (15.2% vs 3.7%, p<0.01), transfusion (7.9% vs 1.1%, p<0.01) and cardiac tamponade (13.2% vs 0.4%, p<0.01). After 1-year follow-up, patients with perforations had higher MACCE rates according to both LATAM CTO protocol (18.2 vs. 9.4%; P=0.02) and SCAI definitions (22.7% vs. 11.3%; P<0.01).
Conclusions
In this multicenter continental real-world analysis, coronary perforation in CTO PCI was infrequent and was related with higher anatomical and procedural complexity characteristics. Despite the similarity in clinical characteristics, patients that had coronary perforation were exposed to an increased risk of both hemorrhagic and ischemic events.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- M Harada Ribeiro
- Heart Institute of the University of Sao Paulo (InCor), Interventional Cardiology, Sao Paulo, Brazil
| | - A Quadros
- Institute of Cardiology of Rio Grande do Sul, Porto Alegre, Brazil
| | - L T Padilla
- Instituto Cardiovascular De Buenos Aires, Buenos Aires, Argentina
| | - K C Belli
- Institute of Cardiology of Rio Grande do Sul, Porto Alegre, Brazil
| | - P Piccaro
- Divina Providencia Hospital, Porto Alegre, Brazil
| | - L A Dallan
- University Hospitals Cleveland Medical Center, Cleveland, United States of America
| | | | | | - N Morales
- Instituto Nacional de Cardiologia Ignacio Chaves, Mexico, Mexico
| | - R Santiago
- Bayamon Heart & Lung Institute Lung Institute, Puerto Rico, Puerto Rico
| | - K C Mashayekhi
- University Heart Center Freiburg-Bad Krozingen, Bad Krozingen, Germany
| | - L A Azzalini
- VCU Health Pauley Heart Center, Richmond, United States of America
| | | | - C M Campos
- Heart Institute of the University of Sao Paulo (InCor), Interventional Cardiology, Sao Paulo, Brazil
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10
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Molina NM, Sola-Leyva A, Pérez-Prieto I, Vargas E, Molina M, Yoldi A, Vaquero A, Navas P, Clavero-Gilabert A, Gonzalvo-López MC, Morales N, Ramírez JP, Castilla JA, Aguilera CM, Altmäe S. O-147 Differential seminal metabolomic signature is related to sperm quality. Hum Reprod 2021. [DOI: 10.1093/humrep/deab127.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
What is the entire metabolomic profile of human semen and does the metabolic composition differ between men with good-quality and low-quality semen?
Summary answer
Human semen contains ∼700 different metabolites, and the metabolomic signature differs between normozoospermic men and men with altered seminal parameters.
What is known already
Semen contains a wide diversity of metabolites as has been identified in single and targeted metabolite studies. The full composition of metabolites in human semen, however, is not known. The knowledge of the complete metabolic signature in semen and whether there are differences between metabolic composition and seminal quality could enhance our knowledge of possible factors involved in reduced sperm quality and male infertility.
Study design, size, duration
Case-control study, where a total of 100 men (age= 29.73±8.9 years) from March 2019 to March 2020 participated. The study was approved by the Ethics Committee of Investigación Biomédica de Andalucia.
Participants/materials, setting, methods
Semen samples from 69 normozoospermic and 31 oligozoospermic men were collected at the University Hospital and sperm biobank (Ceifer Biobank - NextClinics). The complete metabolome from unprocessed seminal samples was analysed by Ultrahigh Performance Liquid Chromatography-Tandem Mass Spectroscopy (UPLC-MS/MS). Raw data were extracted, peak-identified and quality control processed using Metabolon’s hardware and software (metabolon.com). Multiple regression models controlling for age and sample collection centres were applied using R software.
Main results and the role of chance
In total, 695 different metabolites were detected in the seminal samples, where docosahexaenoate (DHA; 22:6n3, PubChem ID 445580), choline phosphate (1014), dihomo-linolenate (20:3n3 or n6, 5280581), docosapentaenoate (n6 DPA; 22:5n6, 6441454), adenosine 3’,5’-cyclic monophosphate (cAMP, 6076) and N-acetylalliin (122164824) metabolites were the most prevalent. The seminal metabolomic profiles differed significantly between men with normal and low sperm parameters. The most abundant metabolites in normozoospermic men belonged to Lipid Super-Pathway, while Nucleotide Super-Pathway was predominant in semen samples with low quality (p < 0.05). More specifically, the leading Sub-Pathway in normozoospermic men was Long Chain Polyunsaturated Fatty Acid (n3 and n6), whereas Purine and Pyrimidine Metabolism Sub-Pathway prevailed in low-quality semen samples, where DHA and cAMP dominated in men with normal and low seminal quality parameters, respectively (p < 0.05 in all comparisons).
Limitations, reasons for caution
This is the first study presenting the entire metabolome signature of unprocessed human semen, and these preliminary results need to be confirmed in a bigger sample size.
Wider implications of the findings
Semen analyses applied in clinics do not evaluate the functional status of sperm, leaving the infertility causes due to male factor frequently unknown. Our study results could help to understand the molecular background of reduced seminal quality and male infertility and lead to identification of molecular biomarkers of functional sperm.
Trial registration number
not applicable
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Affiliation(s)
- N M Molina
- University of Granada, Faculty of Sciences- Department of Biochemistry and Molecular Biology, Granada, Spain
- Instituto de Investigación Biosanitaria, ibs.GRANADA, Granada, Spain
| | - A Sola-Leyva
- University of Granada, Faculty of Sciences- Department of Biochemistry and Molecular Biology, Granada, Spain
- Instituto de Investigación Biosanitaria, ibs.GRANADA, Granada, Spain
| | - I Pérez-Prieto
- University of Granada, Faculty of Sciences- Department of Biochemistry and Molecular Biology, Granada, Spain
| | - E Vargas
- University of Jaen, Faculty of Experimental Sciences- Department of Experimental Biology- Systems Biology Unit, Jaen, Spain
| | - M Molina
- CEIFER, Nextclinics, Granada, Spain
| | - A Yoldi
- CEIFER, Nextclinics, Granada, Spain
| | | | - P Navas
- CEIFER, Nextclinics, Granada, Spain
| | - A Clavero-Gilabert
- HU Virgen de las Nieves, Unidad Reproducción- UGC Laboratorio clínico y UGC Obstetricia y Ginecología, Granada, Spain
| | - M C Gonzalvo-López
- HU Virgen de las Nieves, Unidad Reproducción- UGC Laboratorio clínico y UGC Obstetricia y Ginecología, Granada, Spain
| | - N Morales
- HU Virgen de las Nieves, Unidad Reproducción- UGC Laboratorio clínico y UGC Obstetricia y Ginecología, Granada, Spain
| | | | - J A Castilla
- Instituto de Investigación Biosanitaria, ibs.GRANADA, Granada, Spain
- CEIFER, Nextclinics, Granada, Spain
- HU Virgen de las Nieves, Unidad Reproducción- UGC Laboratorio clínico y UGC Obstetricia y Ginecología, Granada, Spain
| | - C M Aguilera
- Instituto de Investigación Biosanitaria, ibs.GRANADA, Granada, Spain
- University of Granada, Faculty of Pharmacy- Department of Biochemistry and Molecular Biolog, Granada, Spain
- University of Granada, Centre of Biomedical Research- Institute of Nutrition and Food Technology “José Mataix”, Granada, Spain
- Instituto de Salud Carlos III, CIBEROBN CIBER Physiopathology of Obesity and Nutrition, Madrid, Spain
| | - S Altmäe
- University of Granada, Faculty of Sciences- Department of Biochemistry and Molecular Biology, Granada, Spain
- Instituto de Investigación Biosanitaria, ibs.GRANADA, Granada, Spain
- Competence Centre on Health Technologies, University of Tartu, Tartu, Estonia
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11
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Albornoz A, Alarcon P, Morales N, Uberti B, Henriquez C, Manosalva C, Burgos RA, Moran G. Metabolomics analysis of bronchoalveolar lavage fluid samples in horses with naturally-occurring asthma and experimentally-induced airway inflammation. Res Vet Sci 2020; 133:276-282. [PMID: 33039879 DOI: 10.1016/j.rvsc.2020.09.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 09/22/2020] [Accepted: 09/28/2020] [Indexed: 01/09/2023]
Abstract
The present work characterized the metabolomic profile of bronchoalveolar lavage fluid (BALF) in healthy horses, experimentally-induced airway inflammation by lipopolysaccharide (LPS) nebulization, and naturally-occurring asthma (n = 3 in each group). All animals underwent clinical and upper airway endoscopic examinations, and bronchoalveolar lavage. BALF supernatant samples were subjected to metabolic analysis based on gas chromatography-mass spectrometry (GC-MS). Overall, 67 peaks were obtained from BALF GC-MS analysis, corresponding to 53 metabolites which were categorized according to chemical class, such as organic acids, fatty acids, nucleosides or their derivatives, amino acids, peptides or their derivatives, carbohydrates, and other compounds. Our results showed that the airway inflammation induction model with LPS produced the same pattern of metabolite changes as in horses with naturally occurring asthma. Metabolic pathway analysis was done by means of Fisher's exact test, for detection of metabolites over-represented in asthma affected-horses and LPS-induced airway inflammation as compared with healthy horses. The most significant altered metabolic pathways were fatty acid biosynthesis, galactose metabolism and citrate cycle. These results suggest that the airway inflammation induction model with LPS is a good study model for asthma-affected horses, due to the similarity of the profile of inflammatory cells (specifically neutrophils) and similar metabolic alterations found in BALF that occur during the inflammatory process of the airways. Further research may increase understanding of metabolomics disturbances and their significance in the pathogenesis of equine asthma.
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Affiliation(s)
- Alejandro Albornoz
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Pablo Alarcon
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Natalia Morales
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Benjamin Uberti
- Department of Clinical Veterinary Sciences, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Claudio Henriquez
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Carolina Manosalva
- Department of Pharmacy, Faculty of Science, Universidad Austral de Chile, Valdivia, Chile
| | - Rafael A Burgos
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Gabriel Moran
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile.
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12
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Vargas-Robles D, Morales N, Rodríguez I, Nieves T, Godoy-Vitorino F, Alcaraz LD, Pérez ME, Ravel J, Forney LJ, Domínguez-Bello MG. Changes in the vaginal microbiota across a gradient of urbanization. Sci Rep 2020; 10:12487. [PMID: 32719372 PMCID: PMC7385657 DOI: 10.1038/s41598-020-69111-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 06/17/2020] [Indexed: 12/27/2022] Open
Abstract
The vaginal microbiota of healthy women typically has low diversity, which increases after perturbations. Among these, lifestyle associated with certain sexual and antimicrobial practices may be associated with higher diversity. To test this hypothesis, we characterized the vaginal microbiota in the cervicovaginal and introital sites in sexually active Amerindians (N = 82) spanning urbanization, and in urban mestizos (N = 29), in the Venezuelan Amazonas. HPV status was also considered. Sampling was performed in an urban gradient from remote villages to a town, and women were individually classified by the degree of urbanization (low, medium, and high). Amerindian cervicovaginal and introital microbiota diversity were not associated with major changes in urbanization or ethnicity. There was a non-significant trend of increased diversity with urbanization, with a few taxa found overrepresented in urban Amerindians (Brevibacterium linens and Peptoniphilus lacrimalis) or mestizos (Mobiluncus mulieris and Prevotella sp.). Among all women, cervicovaginal and introital samples clustered, respectively, in four and two community state types (CSTs), where most profiles were dominated by Lactobacillus iners, Gardnerella vaginalis or were highly diverse profiles. HPV status did not associate with microbial diversity. In conclusion, no association was found between urban level and the vaginal microbiome in Amerindian women, and little difference was found between ethnicities. L. iners and high diversity profiles, associated with vaginal health outcomes, prevail in these populations.
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Affiliation(s)
- Daniela Vargas-Robles
- Department of Biology, University of Puerto Rico, San Juan, PR, USA.,Servicio Autónomo Centro Amazónico de Investigación y Control de Enfermedades Tropicales Simón Bolívar, MPPS, Puerto Ayacucho, Venezuela
| | - Natalia Morales
- Servicio Autónomo Centro Amazónico de Investigación y Control de Enfermedades Tropicales Simón Bolívar, MPPS, Puerto Ayacucho, Venezuela
| | - Iveth Rodríguez
- Ministerio del Poder Popular Para La Salud, Caracas, Venezuela
| | - Tahidid Nieves
- Servicio Autónomo Centro Amazónico de Investigación y Control de Enfermedades Tropicales Simón Bolívar, MPPS, Puerto Ayacucho, Venezuela
| | - Filipa Godoy-Vitorino
- Department of Microbiology & Medical Zoology, School of Medicine, University of Puerto Rico, San Juan, PR, USA
| | - Luis David Alcaraz
- Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - María-Eglée Pérez
- Department of Mathematics, University of Puerto Rico, San Juan, PR, USA
| | - Jacques Ravel
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, USA
| | - Larry J Forney
- Department of Biological Sciences and the Institute for Bioinformatics and Evolutionary Studies, University of Idaho, Moscow, ID, USA
| | - María Gloria Domínguez-Bello
- Department of Medicine, New York University School of Medicine, New York, USA. .,Departments of Biochemistry and Microbiology and of Anthropology, Rutgers University, New Brunswick, USA.
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13
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Jeffers SV, Dreizler S, Barnes JR, Haswell CA, Nelson RP, Rodríguez E, López-González MJ, Morales N, Luque R, Zechmeister M, Vogt SS, Jenkins JS, Palle E, Berdi Ñas ZM, Coleman GAL, Díaz MR, Ribas I, Jones HRA, Butler RP, Tinney CG, Bailey J, Carter BD, O'Toole S, Wittenmyer RA, Crane JD, Feng F, Shectman SA, Teske J, Reiners A, Amado PJ, Anglada-Escudé G. A multiplanet system of super-Earths orbiting the brightest red dwarf star GJ 887. Science 2020; 368:1477-1481. [PMID: 32587019 DOI: 10.1126/science.aaz0795] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 05/12/2020] [Indexed: 11/02/2022]
Abstract
The closet exoplanets to the Sun provide opportunities for detailed characterization of planets outside the Solar System. We report the discovery, using radial velocity measurements, of a compact multiplanet system of super-Earth exoplanets orbiting the nearby red dwarf star GJ 887. The two planets have orbital periods of 9.3 and 21.8 days. Assuming an Earth-like albedo, the equilibrium temperature of the 21.8-day planet is ~350 kelvin. The planets are interior to, but close to the inner edge of, the liquid-water habitable zone. We also detect an unconfirmed signal with a period of ~50 days, which could correspond to a third super-Earth in a more temperate orbit. Our observations show that GJ 887 has photometric variability below 500 parts per million, which is unusually quiet for a red dwarf.
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Affiliation(s)
- S V Jeffers
- Institut für Astrophysik, Georg-August-UniversitÄt, 37077 Göttingen, Germany.
| | - S Dreizler
- Institut für Astrophysik, Georg-August-UniversitÄt, 37077 Göttingen, Germany
| | - J R Barnes
- School of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
| | - C A Haswell
- School of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK
| | - R P Nelson
- School of Physics and Astronomy, Queen Mary University of London, London E1 4NS, UK
| | - E Rodríguez
- Instituto de Astrofísica de Andalucía, Consejo Superior de Investigaciones Científicas, 18008 Granada, Spain
| | - M J López-González
- Instituto de Astrofísica de Andalucía, Consejo Superior de Investigaciones Científicas, 18008 Granada, Spain
| | - N Morales
- Instituto de Astrofísica de Andalucía, Consejo Superior de Investigaciones Científicas, 18008 Granada, Spain
| | - R Luque
- Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain.,Departamento de Astrofísica, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain
| | - M Zechmeister
- Institut für Astrophysik, Georg-August-UniversitÄt, 37077 Göttingen, Germany
| | - S S Vogt
- University of California/Lick Observatory, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - J S Jenkins
- Departamento de Astronomia, Universidad de Chile, Santiago, Chile.,Centro de Astrofísica y Tecnologías Afines, Santiago, Chile
| | - E Palle
- Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain.,Departamento de Astrofísica, Universidad de La Laguna, 38206 La Laguna, Tenerife, Spain
| | - Z M Berdi Ñas
- Departamento de Astronomia, Universidad de Chile, Santiago, Chile
| | - G A L Coleman
- School of Physics and Astronomy, Queen Mary University of London, London E1 4NS, UK.,Physikalisches Institut, UniversitÄt Bern, 3012 Bern, Switzerland
| | - M R Díaz
- Departamento de Astronomia, Universidad de Chile, Santiago, Chile
| | - I Ribas
- Institut de Ciències de l'Espai, Consejo Superior de Investigaciones Científicas, Campus Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.,Istitut d'Estudis Espacials de Catalunya, E-08034 Barcelona, Spain
| | - H R A Jones
- Centre for Astrophysics Research, University of Hertfordshire, Hatfield AL10 9AB, UK
| | - R P Butler
- Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA
| | - C G Tinney
- Exoplanetary Science at University of New South Wales, School of Physics, University of New South Wales, Sydney, NSW 2052, Australia
| | - J Bailey
- Exoplanetary Science at University of New South Wales, School of Physics, University of New South Wales, Sydney, NSW 2052, Australia
| | - B D Carter
- Centre for Astrophysics, University of Southern Queensland, Springfield Central, QLD 4300, Australia
| | - S O'Toole
- Australian Astronomical Optics, Macquarie University, North Ryde, NSW 2113, Australia
| | - R A Wittenmyer
- Centre for Astrophysics, University of Southern Queensland, Toowoomba, QLD 4350, Australia
| | - J D Crane
- The Observatories of the Carnegie Institution for Science, Pasadena, CA 91101, USA
| | - F Feng
- Earth and Planets Laboratory, Carnegie Institution for Science, Washington, DC 20015, USA
| | - S A Shectman
- The Observatories of the Carnegie Institution for Science, Pasadena, CA 91101, USA
| | - J Teske
- The Observatories of the Carnegie Institution for Science, Pasadena, CA 91101, USA
| | - A Reiners
- Institut für Astrophysik, Georg-August-UniversitÄt, 37077 Göttingen, Germany
| | - P J Amado
- Instituto de Astrofísica de Andalucía, Consejo Superior de Investigaciones Científicas, 18008 Granada, Spain
| | - G Anglada-Escudé
- School of Physics and Astronomy, Queen Mary University of London, London E1 4NS, UK.,Institut de Ciències de l'Espai, Consejo Superior de Investigaciones Científicas, Campus Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain.,Istitut d'Estudis Espacials de Catalunya, E-08034 Barcelona, Spain
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14
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Albornoz A, Morales N, Uberti B, Henriquez C, Burgos RA, Alarcon P, Moran G. Tamoxifen and its metabolites induce mitochondrial membrane depolarization and caspase-3 activation in equine neutrophils. Vet Med Sci 2020; 6:673-678. [PMID: 32558352 PMCID: PMC7738725 DOI: 10.1002/vms3.316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 01/14/2020] [Accepted: 05/27/2020] [Indexed: 01/23/2023] Open
Abstract
Neutrophils participate in innate immunity as the first line of host defence against microorganisms. However, persistent neutrophil activity and delayed apoptosis can be harmful to surrounding tissues; this problem occurs in diverse inflammatory diseases, including asthma‐affected horses. Previous studies in horses with acute lung inflammation indicated that treatment with tamoxifen (TX), a selective oestrogen receptor modulator, produces a significant decrease in bronchoalveolar lavage fluid (BALF) neutrophil content. The aim of this study was to investigate the effect of tamoxifen and its metabolites (N‐desmethyltamoxifen and endoxifen) on the mitochondrial membrane potential assay by flow cytometry, and the activation of effector caspase‐3 through immunoblotting, in peripheral blood neutrophils obtained from healthy horses (n = 5). Results show that tamoxifen, N‐desmethyltamoxifen and endoxifen depolarize the mitochondrial membrane and activate caspase‐3 in healthy equine neutrophils in vitro. These findings suggest that tamoxifen and its metabolites may activate the intrinsic apoptotic pathway in equine neutrophils. However, more studies are necessary to further explore the signalling pathways of these drugs in the induction of apoptosis.
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Affiliation(s)
- Alejandro Albornoz
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Natalia Morales
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile.,Graduate School, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Benjamin Uberti
- Department of Clinical Veterinary Sciences, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Claudio Henriquez
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Rafael A Burgos
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Pablo Alarcon
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Gabriel Moran
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
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15
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Salinas C, Espinosa G, Morales N, Henríquez C, Morán G, Gajardo G, Uberti B. Assessment of peripheral blood neutrophil respiratory burst, phagocytosis and apoptosis in obese non-insulin dysregulated horses. Res Vet Sci 2020; 132:127-132. [PMID: 32563928 DOI: 10.1016/j.rvsc.2020.06.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 05/04/2020] [Accepted: 06/10/2020] [Indexed: 11/20/2022]
Abstract
Obesity is a highly prevalent condition in horses. Dysfunctional neutrophil activity has been reported in metabolically healthy obese humans, but minimal data exist regarding horses. The present study evaluated the effect of obesity on apoptosis, phagocytosis and oxidative burst activity of peripheral blood neutrophils from lean and obese non-insulin dysregulated horses. Seven lean (BCS, body condition score 4-6/9) and five obese (BCS 8-9) horses were enrolled in the study. All animals underwent two metabolic tests (OGT, oral glucose test; IRT, insulin response test) before their selection to ensure their metabolic status (non-insulin dysregulated). A single blood sample was obtained from each horse, and a discontinuous density gradient was carried out to isolate neutrophils. Phagocytosis, apoptosis and reactive oxygen species (ROS) production assays were performed for each animal. All statistical analyses were performed with unpaired two-tailed t-tests. Results indicate that neutrophils from obese non-insulin dysregulated horses have a significantly increased ROS production (P < .0001), with no changes observed on phagocytosis (P > .05) or apoptosis (P > .05) when compared to the control group. In conclusion, our results demonstrate that obesity per se, in absence of other endocrine disorders, alters neutrophil reactive oxygen species production. More research is needed to understand the role of obesity on the equine immune system of horses, and its role in the development of endocrine disorders.
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Affiliation(s)
- Constanza Salinas
- Escuela de Graduados, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Instituto de Ciencias Clínicas Veterinarias, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
| | - Gabriel Espinosa
- Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
| | - Natalia Morales
- Escuela de Graduados, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile; Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
| | - Claudio Henríquez
- Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
| | - Gabriel Morán
- Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
| | - Gonzalo Gajardo
- Escuela de Graduados, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
| | - Benjamin Uberti
- Instituto de Ciencias Clínicas Veterinarias, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.
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16
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Caffi V, Espinosa G, Gajardo G, Morales N, Durán MC, Uberti B, Morán G, Plaza A, Henríquez C. Pre-conditioning of Equine Bone Marrow-Derived Mesenchymal Stromal Cells Increases Their Immunomodulatory Capacity. Front Vet Sci 2020; 7:318. [PMID: 32656251 PMCID: PMC7325884 DOI: 10.3389/fvets.2020.00318] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 05/11/2020] [Indexed: 12/17/2022] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) are increasingly explored for the treatment of degenerative and inflammatory diseases in human and veterinary medicine. One of the key characteristics of MSCs is that they modulate inflammation mainly through the secretion of soluble mediators. However, despite widespread clinical use, knowledge regarding the effector mechanisms of equine MSCs, and consequently their effectiveness in the treatment of diseases, is still unknown. The objectives of this study were to determine the mechanisms underlying inhibition of lymphocyte proliferation by equine bone marrow-derived MSCs, and to evaluate the effect of pre-conditioning of equine MSCs with different pro-inflammatory cytokines on inhibition of lymphocyte proliferation. We determined that inhibition of lymphocyte proliferation by equine MSCs depends on activity of prostaglandin-endoperoxide synthase 2 and indoleamine 2,3-dioxygenase. Additionally, pre-conditioning of MSCs with TNF-α, IFN-γ or their combination significantly increased the expression of prostaglandin-endoperoxide synthase 2, indoleamine 2,3-dioxygenase, iNOS and IL-6. This upregulation correlated with an increased inhibitory effect of MSCs on lymphocyte proliferation. In conclusion, pre-conditioning of bone marrow-derived MSC increases their inhibitory effect on lymphocyte proliferation in horses.
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Affiliation(s)
- Valeria Caffi
- Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile.,Escuela de Graduados, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Gabriel Espinosa
- Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Gonzalo Gajardo
- Escuela de Graduados, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Natalia Morales
- Escuela de Graduados, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - María Carolina Durán
- Instituto de Ciencias Clínicas, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Benjamín Uberti
- Instituto de Ciencias Clínicas, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Gabriel Morán
- Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
| | - Anita Plaza
- Instituto de Medicina, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Claudio Henríquez
- Instituto de Farmacología y Morfofisiología, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Valdivia, Chile
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17
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Calderon-Ospina CA, Galvez JM, López-Cabra C, Morales N, Restrepo CM, Rodríguez J, Aristizábal-Gutiérrez FA, Velez-van-Meerbeke A, Laissue P, Fonseca-Mendoza DJ. Possible Genetic Determinants of Response to Phenytoin in a Group of Colombian Patients With Epilepsy. Front Pharmacol 2020; 11:555. [PMID: 32457604 PMCID: PMC7221122 DOI: 10.3389/fphar.2020.00555] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022] Open
Abstract
Background Epilepsy is a serious health problem worldwide. Despite the introduction of new antiepileptic drugs (AEDs) almost 30% of these patients have drug-resistant forms of the disease (DRE), with a significant increase in morbi-mortality. Objective Our objective was to assess the impact of some genetic factors and its possible association with treatment response and adverse drug reactions (ADRs) to phenytoin in 67 adult Colombian patients with epilepsy. Methods We conducted an analytical, observational, prospective cohort study to screen four polymorphisms in pharmacogenes: CYP2C9*2-c.430C>T (rs1799853), CYP2C9*3-c.1075A>C (rs1057910), ABCB1-c.3435T>C (rs1045642), and SCN1A-IVS5-91G>A (rs3812718), and their association with treatment response. Patients were followed for 1 year to confirm the existence of DRE (non-response) and ADRs using an active pharmacovigilance approach, followed by a consensus in order to classify ADRs according to causality, preventability, intensity and their relation with phenytoin dose, the duration of treatment, and susceptibility factors (DoTS methodology). Results A little more than half of evaluated subjects (52.2%) were non-responding to phenytoin. Regarding the genotype-phenotype correlation there was no association between polymorphisms of SCN1A and ABCB1 and DRE (non-response) (p = 0.34), and neither with CYP2C9 polymorphisms and the occurrence of ADRs (p = 0.42). We only found an association between polymorphic alleles of CYP2C9 and vestibular-cerebellar ADRs (dizziness, ataxia, diplopia, and dysarthria) (p = 0.001). Alleles CYP2C9*2-c.430C>T and CYP2C9*3-c.1075A>C were identified as susceptibility factors to ADRs in 24% of patients. Conclusions Decreased function alleles of CYP2C9 were highly predictive of vestibular-cerebellar ADRs to phenytoin in our study (p = 0.001). However, the genetic variants CYP2C9*2-c.430C>T, CYP2C9*3-c.1075A>C, ABCB1-c.3435T>C, and SCN1A-IVS5-91G>A, were not associated with treatment response in our study.
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Affiliation(s)
- Carlos Alberto Calderon-Ospina
- Center for Research in Genetics and Genomics (CIGGUR), GENIUROS Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia.,Department of Pharmacy, Faculty of Sciences, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Jubby Marcela Galvez
- Center for Research in Genetics and Genomics (CIGGUR), GENIUROS Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia.,Neurology Department, Hospital Universitario Mayor Mederi, Bogotá, Colombia
| | - Claudia López-Cabra
- Neuroscience Research Group (NEUROS), School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Natalia Morales
- Neuroscience Research Group (NEUROS), School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Carlos Martín Restrepo
- Center for Research in Genetics and Genomics (CIGGUR), GENIUROS Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Jesús Rodríguez
- Neurology Department, Hospital Universitario Mayor Mederi, Bogotá, Colombia.,Neuroscience Research Group (NEUROS), School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia.,Cardioinfantil Foundation, Institute of Cardiology, Bogotá, Colombia
| | | | - Alberto Velez-van-Meerbeke
- Neuroscience Research Group (NEUROS), School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
| | - Paul Laissue
- Department of Development, Reproduction and Cancer, INSERM U1016 Institut Cochin, Paris, France.,Biopas Laboratoires, BIOPAS GROUP, Bogotá, Colombia
| | - Dora Janeth Fonseca-Mendoza
- Center for Research in Genetics and Genomics (CIGGUR), GENIUROS Research Group, School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia
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18
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Bonardd S, Morales N, Gence L, Saldías C, Angel FA, Kortaberria G, Leiva A. Doped Poly(3-hexylthiophene) Coatings onto Chitosan: A Novel Approach for Developing a Bio-Based Flexible Electronic. ACS Appl Mater Interfaces 2020; 12:13275-13286. [PMID: 32067453 DOI: 10.1021/acsami.9b21289] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Conductive and flexible bio-based materials consisting of chitosan films coated with conductive poly(3-hexylthiophene) (P3HT) were prepared. Thermal, optical, mechanical, morphological, wettability, and conductive properties were analyzed. In a very simple and effective method of chitosan film modification, a controlled volume of a P3HT solution was deposited onto a previously formed chitosan film, assisted by the spin coating method. Later, P3HT-coated chitosan films were doped by simple contact with an aqueous solution of HAuCl4. The use of HAuCl4 becomes attractive because the reports on the doping process in this type of material using this reagent are still scarce and recent to date. In addition, since this acid is a well-known metal nanoparticle precursor, its use opens new future perspectives for these materials into new applications. The effect of P3HT concentration and doping times on film properties was studied. Attenuated total reflectance spectroscopy and UV-Vis spectroscopy allowed us to demonstrate that the presence of the P3HT coating and its doping induce significant changes in the vibrational modes and optoelectronic properties of samples. Additionally, the images obtained by scanning electron microscopy showed a well-distributed and homogeneous coating on the surface of chitosan films. Measured conductivity values of doped film samples fall in the range from 821.3 to 2017.4 S/m, representing, to the best of our knowledge, the highest values reported in the literature for chitosan/chitin-based materials. Indeed, these values are around or even higher than those obtained for some materials purely consisting of conductive polymers.
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Affiliation(s)
- Sebastian Bonardd
- Facultad de Ciencias, Centro de Nanotecnología Aplicada, Universidad Mayor, Camino la Pirámide 5750, Santiago 8580745, Chile
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 302, Correo 22, Santiago 7820436, Chile
| | - Natalia Morales
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 302, Correo 22, Santiago 7820436, Chile
| | - Loïk Gence
- Instituto de Física, Pontificia Universidad Católica de Chile, Avenida Vicuña Mackenna 4860, Santiago 7820436, Chile
| | - César Saldías
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 302, Correo 22, Santiago 7820436, Chile
| | - Felipe A Angel
- Departamento de Química Inorgánica, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
- Centro de Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Galder Kortaberria
- Universidad del País Vasco/EuskalHerriko Unibertsitatea, 'Materials + Technologies' Group, Departamento Ingeniería Química y Medio Ambiente, Escuela de Ingeniería de Gipuzkoa, Pza Europa 1, 20018 Donostia-San Sebastián, Spain
| | - Angel Leiva
- Departamento de Química Física, Facultad de Química, Pontificia Universidad Católica de Chile, Casilla 302, Correo 22, Santiago 7820436, Chile
- Centro de Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
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19
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Ibarra Melogno S, Chifflet L, Rey R, Leiva G, Morales N, Albornoz H. Long-term results of hip arthroplasty in patients on dialysis for chronic renal failure. Mortality and implant survival in the National Registry of Uruguay since 2000. Rev Esp Cir Ortop Traumatol (Engl Ed) 2019. [DOI: 10.1016/j.recote.2018.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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20
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Ibarra Melogno S, Chifflet L, Rey R, Leiva G, Morales N, Albornoz H. Long-term results of hip arthroplasty in patients on dialysis for chronic renal failure. Mortality and implant survival in the National Registry of Uruguay since 2000. Rev Esp Cir Ortop Traumatol (Engl Ed) 2019; 63:187-191. [PMID: 30910466 DOI: 10.1016/j.recot.2018.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 11/24/2018] [Accepted: 12/10/2018] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE To evaluate the incidence of mortality, revision and functional assessment after hip arthroplasty in dialysis patients in Uruguay. METHODS An observational analytical study of a historical cohort of hip arthroplasties was performed on patients with chronic kidney disease treated with haemodialysis or peritoneal dialysis between 1/1/2000-31/12/2013; survival analysis using the Kaplan-Meier method. Functional and radiological evaluation of the live patients was also carried out. One hundred and forty-one hip arthroplasties, 42 for osteoarthritis (29.8%) and 99 for fractures (70.2%), age 72.3 (SD: 12.1) years (18.9-93.1), 72 women (51.1%) and 69 men (48.9%), 75 left arthroplasties (53.2%) and 66 right (46.8%). The anterolateral approach (115, 81.6%) predominated over the posterolateral approach (26, 18.4%). RESULTS Mortality at 30, 180 days, 1 and 5 years of patients diagnosed with osteoarthritis was 2.4, 7.1, 9.5 and 47.6%, respectively, and of patients with fracture it was 7.1, 18.2, 29.3 and 82.6%. Five prosthetic revisions were performed, 3 due to recurrent dislocation, one due to aseptic loosening, and one resection arthroplasty due to infection. Twelve patients were alive at the last control, the average score according to the scale of Merle D'Aubigne-Postel was 6.4 preoperatively, and 11 at the end of the follow-up. The average Barthel index at follow-up was 72.8. DISCUSSION The mortality in the medium and long term of these patients was very high, much higher than that observed in patients undergoing the same procedure not on dialysis. The review is exceptional, and the functional evaluation of the few living patients shows poor clinical-radiological results.
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Affiliation(s)
- S Ibarra Melogno
- Cátedra de Traumatología y Ortopedia, Facultad de Medicina UdelaR, Montevideo, Uruguay.
| | - L Chifflet
- Fondo Nacional de Recursos, Montevideo, Uruguay
| | - R Rey
- Cátedra de Traumatología y Ortopedia, Facultad de Medicina UdelaR, Montevideo, Uruguay
| | - G Leiva
- Fondo Nacional de Recursos, Montevideo, Uruguay
| | - N Morales
- Cátedra de Traumatología y Ortopedia, Facultad de Medicina UdelaR, Montevideo, Uruguay
| | - H Albornoz
- Fondo Nacional de Recursos, Montevideo, Uruguay
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21
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Morales N, Henriquez C, Sarmiento J, Uberti B, Moran G. Tamoxifen inhibits chemokinesis in equine neutrophils. Ir Vet J 2018; 71:22. [PMID: 30386589 PMCID: PMC6199699 DOI: 10.1186/s13620-018-0133-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 10/17/2018] [Indexed: 11/21/2022] Open
Abstract
Neutrophils are terminally differentiated innate effector cells at the first line of host defense. Neutrophil migration within tissues is complex and involves several steps, during which these cells must be able to interpret a variety of chemical and physical signals. Exacerbated neutrophil activity can be harmful to surrounding tissues; this is important in a range of diseases, including equine asthma. Tamoxifen (TX) is a non-steroidal estrogen receptor modulator with effects on cell growth and survival. Previous studies showed that TX treatment in horses with induced acute pulmonary inflammation promoted early apoptosis of blood and bronchoalveolar lavage fluid (BALF) neutrophils, reduction of BALF neutrophil content, and improvement in animals’ clinical status. Further, TX dampens chemotactic index and respiratory burst production in vitro. The aim of this study was to provide information on the effect of TX on chemokinesis in peripheral blood neutrophils from five healthy horses. Results showed that neutrophils increased migration and travelled distance in response to IL-8; but in the presence of TX, IL-8 did not produce neutrophil migration. This suggests that TX has an inhibitory effect on the kinesis of equine peripheral blood neutrophils stimulated with IL-8. However, further studies are required to fully understand the signaling pathways of TX on neutrophil chemokinesis.
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Affiliation(s)
- Natalia Morales
- 1Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Claudio Henriquez
- 1Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Jose Sarmiento
- 2Department of Physiology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - Benjamin Uberti
- 3Department of Veterinary Clinical Sciences, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - Gabriel Moran
- 1Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
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22
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Olave C, Alvarez P, Uberti B, Morales N, Henriquez C, Folch H, Sarmiento J, Moran G. Tamoxifen induces apoptosis and inhibits respiratory burst in equine neutrophils independently of estrogen receptors. J Vet Pharmacol Ther 2018; 42:248-254. [PMID: 30345523 DOI: 10.1111/jvp.12728] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/03/2018] [Accepted: 09/13/2018] [Indexed: 01/08/2023]
Abstract
Neutrophils play an important role in the exacerbation and maintenance of severe equine asthma; persistent neutrophil activity and delayed apoptosis can be harmful to surrounding tissues. Tamoxifen (TX) is a nonsteroidal estrogen receptor modulator with immunomodulatory effects and induces early apoptosis of blood and bronchoalveolar lavage neutrophils from horses with acute lung inflammation. This study investigated if the in vitro effects of tamoxifen are produced by its action on nuclear (α and β) and membrane (GPR30) estrogen receptors in healthy equine neutrophils. Results showed that TX inhibits neutrophil respiratory burst induced by opsonized zymosan in a dose-dependent manner. Nuclear (17-β-Estradiol) and GPR30 cell membrane (G1) estrogen receptor agonists and their antagonists (ICI 182,780 and G15, respectively) do not block or reproduce the effect of TX. Therefore, TX does not inhibit respiratory burst through estrogen receptors. TX (8.5 μM) also increased phosphatidylserine translocation, a marker of early apoptosis, which did not occur with any of the estrogen receptor agonists or antagonists. Thus, tamoxifen generates dose-dependent inhibition of respiratory burst and increased early apoptosis in healthy equine neutrophils, independently of nuclear or membrane estrogen receptors. Further studies are necessary to explore the signaling pathways of tamoxifen-induced ROS inhibition and phosphatidylserine translocation.
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Affiliation(s)
- Carla Olave
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - Pamela Alvarez
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - Benjamin Uberti
- Department of Veterinary Clinical Sciences, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - Natalia Morales
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - Claudio Henriquez
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - Hugo Folch
- Department of Immunology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - Jose Sarmiento
- Department of Physiology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - Gabriel Moran
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
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23
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Felt E, Morales N, Ramos M, Ferrer L, Collazos F, Ronda E. 7.10-P7Occupational and health characteristics of immigrant families in the PELFI cohort study in Spain. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky048.240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- E Felt
- Hospital Vall d'Hebron, Spain
| | | | - M Ramos
- Hospital Vall d'Hebron, Spain
| | - L Ferrer
- Centre for Epidemiological Studies of Sexually Transmitted Disease and AIDS in Catalonia (CEEISCAT), Spain
- Centro de Investigación Biomédica en Red Epidemiología y Salud Pública (CIBERESP), Spain
| | | | - E Ronda
- Centro de Investigación Biomédica en Red Epidemiología y Salud Pública (CIBERESP), Spain
- Universidad de Alicante, Spain
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24
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Morales N, Toro-Ibacache V. La Transición a la Agricultura y la Industrialización Cambiaron la Cara del Ser Humano. ¿Puede el Vegetarianismo ser un Nuevo Factor de Cambio? Revisión de la Literatura. INT J MORPHOL 2018. [DOI: 10.4067/s0717-95022018000100035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Ortiz JL, Santos-Sanz P, Sicardy B, Benedetti-Rossi G, Bérard D, Morales N, Duffard R, Braga-Ribas F, Hopp U, Ries C, Nascimbeni V, Marzari F, Granata V, Pál A, Kiss C, Pribulla T, Komžík R, Hornoch K, Pravec P, Bacci P, Maestripieri M, Nerli L, Mazzei L, Bachini M, Martinelli F, Succi G, Ciabattari F, Mikuz H, Carbognani A, Gaehrken B, Mottola S, Hellmich S, Rommel FL, Fernández-Valenzuela E, Bagatin AC, Cikota S, Cikota A, Lecacheux J, Vieira-Martins R, Camargo JIB, Assafin M, Colas F, Behrend R, Desmars J, Meza E, Alvarez-Candal A, Beisker W, Gomes-Junior AR, Morgado BE, Roques F, Vachier F, Berthier J, Mueller TG, Madiedo JM, Unsalan O, Sonbas E, Karaman N, Erece O, Koseoglu DT, Ozisik T, Kalkan S, Guney Y, Niaei MS, Satir O, Yesilyaprak C, Puskullu C, Kabas A, Demircan O, Alikakos J, Charmandaris V, Leto G, Ohlert J, Christille JM, Szakáts R, Farkas AT, Varga-Verebélyi E, Marton G, Marciniak A, Bartczak P, Santana-Ros T, Butkiewicz-Bąk M, Dudziński G, Alí-Lagoa V, Gazeas K, Tzouganatos L, Paschalis N, Tsamis V, Sánchez-Lavega A, Pérez-Hoyos S, Hueso R, Guirado JC, Peris V, Iglesias-Marzoa R. The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation. Nature 2018; 550:219-223. [PMID: 29022593 DOI: 10.1038/nature24051] [Citation(s) in RCA: 141] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Accepted: 08/30/2017] [Indexed: 11/09/2022]
Abstract
Haumea-one of the four known trans-Neptunian dwarf planets-is a very elongated and rapidly rotating body. In contrast to other dwarf planets, its size, shape, albedo and density are not well constrained. The Centaur Chariklo was the first body other than a giant planet known to have a ring system, and the Centaur Chiron was later found to possess something similar to Chariklo's rings. Here we report observations from multiple Earth-based observatories of Haumea passing in front of a distant star (a multi-chord stellar occultation). Secondary events observed around the main body of Haumea are consistent with the presence of a ring with an opacity of 0.5, width of 70 kilometres and radius of about 2,287 kilometres. The ring is coplanar with both Haumea's equator and the orbit of its satellite Hi'iaka. The radius of the ring places it close to the 3:1 mean-motion resonance with Haumea's spin period-that is, Haumea rotates three times on its axis in the time that a ring particle completes one revolution. The occultation by the main body provides an instantaneous elliptical projected shape with axes of about 1,704 kilometres and 1,138 kilometres. Combined with rotational light curves, the occultation constrains the three-dimensional orientation of Haumea and its triaxial shape, which is inconsistent with a homogeneous body in hydrostatic equilibrium. Haumea's largest axis is at least 2,322 kilometres, larger than previously thought, implying an upper limit for its density of 1,885 kilograms per cubic metre and a geometric albedo of 0.51, both smaller than previous estimates. In addition, this estimate of the density of Haumea is closer to that of Pluto than are previous estimates, in line with expectations. No global nitrogen- or methane-dominated atmosphere was detected.
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Affiliation(s)
- J L Ortiz
- Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía S/N, 18008-Granada, Spain
| | - P Santos-Sanz
- Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía S/N, 18008-Granada, Spain
| | - B Sicardy
- LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Universités Paris 06, Universités Paris Diderot, Sorbonne Paris Cité, France
| | - G Benedetti-Rossi
- Observatório Nacional/MCTIC, Rua General José Cristino 77, Rio de Janeiro CEP 20921-400, Brazil
| | - D Bérard
- LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Universités Paris 06, Universités Paris Diderot, Sorbonne Paris Cité, France
| | - N Morales
- Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía S/N, 18008-Granada, Spain
| | - R Duffard
- Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía S/N, 18008-Granada, Spain
| | - F Braga-Ribas
- Observatório Nacional/MCTIC, Rua General José Cristino 77, Rio de Janeiro CEP 20921-400, Brazil.,Federal University of Technology-Paraná (UTFPR/DAFIS), Rua Sete de Setembro 3165, CEP 80230-901 Curitiba, Brazil
| | - U Hopp
- Universitäts-Sternwarte München, München, Scheiner Straße 1, D-81679 München, Germany.,Max-Planck-Institut für Extraterrestrische Physik, D-85741 Garching, Germany
| | - C Ries
- Universitäts-Sternwarte München, München, Scheiner Straße 1, D-81679 München, Germany
| | - V Nascimbeni
- Dipartimento di Fisica e Astronomia, 'G. Galilei', Università degli Studi di Padova, Vicolo dell'Osservatorio 3, I-35122 Padova, Italy.,INAF-Osservatorio Astronomico di Padova, vicolo dell'Osservatorio 5, I-35122 Padova, Italy
| | - F Marzari
- Dipartimento di Fisica, University of Padova, via Marzolo 8, 35131 Padova, Italy
| | - V Granata
- Dipartimento di Fisica e Astronomia, 'G. Galilei', Università degli Studi di Padova, Vicolo dell'Osservatorio 3, I-35122 Padova, Italy.,INAF-Osservatorio Astronomico di Padova, vicolo dell'Osservatorio 5, I-35122 Padova, Italy
| | - A Pál
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege 15-17, H-1121 Budapest, Hungary
| | - C Kiss
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege 15-17, H-1121 Budapest, Hungary
| | - T Pribulla
- Astronomical Institute, Slovak Academy of Sciences, 059 60 Tatranská Lomnica, Slovakia
| | - R Komžík
- Astronomical Institute, Slovak Academy of Sciences, 059 60 Tatranská Lomnica, Slovakia
| | - K Hornoch
- Astronomical Institute, Academy of Sciences of the Czech Republic, Fričova 298, 251 65 Ondřejov Czech Republic
| | - P Pravec
- Astronomical Institute, Academy of Sciences of the Czech Republic, Fričova 298, 251 65 Ondřejov Czech Republic
| | - P Bacci
- Astronomical Observatory San Marcello Pistoiese CARA Project, San Marcello Pistoiese, Pistoia, Italy
| | - M Maestripieri
- Astronomical Observatory San Marcello Pistoiese CARA Project, San Marcello Pistoiese, Pistoia, Italy
| | - L Nerli
- Astronomical Observatory San Marcello Pistoiese CARA Project, San Marcello Pistoiese, Pistoia, Italy
| | - L Mazzei
- Astronomical Observatory San Marcello Pistoiese CARA Project, San Marcello Pistoiese, Pistoia, Italy
| | - M Bachini
- Osservatorio astronomico di Tavolaia, Santa Maria a Monte, Italy.,Lajatico Astronomical Centre, Via Mulini a Vento 9 Orciatico, cap 56030 Lajatico, Italy
| | - F Martinelli
- Lajatico Astronomical Centre, Via Mulini a Vento 9 Orciatico, cap 56030 Lajatico, Italy
| | - G Succi
- Osservatorio astronomico di Tavolaia, Santa Maria a Monte, Italy.,Lajatico Astronomical Centre, Via Mulini a Vento 9 Orciatico, cap 56030 Lajatico, Italy
| | - F Ciabattari
- Osservatorio Astronomico di Monte Agliale, Via Cune Motrone, I-55023 Borgo a Mozzano, Italy
| | - H Mikuz
- Črni Vrh Observatory, Predgriže 29A, 5274 Črni Vrh nad Idrijo, Slovenia
| | - A Carbognani
- Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA), Lignan 39, 11020 Nus, Italy
| | - B Gaehrken
- Bayerische Volkssternwarte München, Rosenheimer Straße 145h, D-81671 München, Germany
| | - S Mottola
- German Aerospace Center (DLR), Institute of Planetary Research, Rutherfordstraße 2, 12489 Berlin, Germany
| | - S Hellmich
- German Aerospace Center (DLR), Institute of Planetary Research, Rutherfordstraße 2, 12489 Berlin, Germany
| | - F L Rommel
- Federal University of Technology-Paraná (UTFPR/DAFIS), Rua Sete de Setembro 3165, CEP 80230-901 Curitiba, Brazil
| | - E Fernández-Valenzuela
- Instituto de Astrofísica de Andalucía (CSIC), Glorieta de la Astronomía S/N, 18008-Granada, Spain
| | - A Campo Bagatin
- Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante, PO Box 99, E-03080 Alicante, Spain.,Instituto Universitario de Física Aplicada a las Ciencias y la Tecnología, Universidad de Alicante, PO Box 99, E-03080 Alicante, Spain
| | - S Cikota
- University of Zagreb, Faculty of Electrical Engineering and Computing, Department of Applied Physics, Unska 3, 10000 Zagreb, Croatia.,Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - A Cikota
- European Southern Observatory, Karl-Schwarzschild-Straße 2, 85748 Garching bei München, Germany
| | - J Lecacheux
- LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Universités Paris 06, Universités Paris Diderot, Sorbonne Paris Cité, France
| | - R Vieira-Martins
- Observatório Nacional/MCTIC, Rua General José Cristino 77, Rio de Janeiro CEP 20921-400, Brazil.,IMCCE/Observatoire de Paris, 77 Avenue Denfert Rochereau, 75014 Paris, France.,Laboratório Interinstitucional de e-Astronomia-LIneA, Rua General José Cristino 77, Rio de Janeiro CEP 20921-400, Brazil.,Observatório do Valongo/UFRJ, Ladeira Pedro Antônio 43, Rio de Janeiro CEP 20080-090, Brazil
| | - J I B Camargo
- Observatório Nacional/MCTIC, Rua General José Cristino 77, Rio de Janeiro CEP 20921-400, Brazil.,Laboratório Interinstitucional de e-Astronomia-LIneA, Rua General José Cristino 77, Rio de Janeiro CEP 20921-400, Brazil
| | - M Assafin
- Observatório do Valongo/UFRJ, Ladeira Pedro Antônio 43, Rio de Janeiro CEP 20080-090, Brazil
| | - F Colas
- IMCCE/Observatoire de Paris, 77 Avenue Denfert Rochereau, 75014 Paris, France
| | - R Behrend
- Observatoire de Genève, CH1290 Sauverny, Switzerland
| | - J Desmars
- LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Universités Paris 06, Universités Paris Diderot, Sorbonne Paris Cité, France
| | - E Meza
- LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Universités Paris 06, Universités Paris Diderot, Sorbonne Paris Cité, France
| | - A Alvarez-Candal
- Observatório Nacional/MCTIC, Rua General José Cristino 77, Rio de Janeiro CEP 20921-400, Brazil
| | - W Beisker
- International Occultation Timing Association-European Section (IOTA-ES) Bartold-Knausstraße 8, D-30459 Hannover, Germany
| | - A R Gomes-Junior
- Observatório do Valongo/UFRJ, Ladeira Pedro Antônio 43, Rio de Janeiro CEP 20080-090, Brazil
| | - B E Morgado
- Observatório Nacional/MCTIC, Rua General José Cristino 77, Rio de Janeiro CEP 20921-400, Brazil
| | - F Roques
- LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, UPMC Universités Paris 06, Universités Paris Diderot, Sorbonne Paris Cité, France
| | - F Vachier
- IMCCE/Observatoire de Paris, 77 Avenue Denfert Rochereau, 75014 Paris, France
| | - J Berthier
- IMCCE/Observatoire de Paris, 77 Avenue Denfert Rochereau, 75014 Paris, France
| | - T G Mueller
- Max-Planck-Institut für Extraterrestrische Physik, D-85741 Garching, Germany
| | - J M Madiedo
- Facultad de Ciencias Experimentales, Universidad de Huelva, Avenida de las Fuerzas Armadas, 21071 Huelva, Spain
| | - O Unsalan
- Ege University, Faculty of Science, Department of Physics, 35100 Izmir, Turkey
| | - E Sonbas
- University of Adiyaman, Department of Physics, 02040 Adiyaman, Turkey
| | - N Karaman
- University of Adiyaman, Department of Physics, 02040 Adiyaman, Turkey
| | - O Erece
- TUBITAK National Observatory (TUG), Akdeniz University Campus, 07058 Antalya, Turkey
| | - D T Koseoglu
- TUBITAK National Observatory (TUG), Akdeniz University Campus, 07058 Antalya, Turkey
| | - T Ozisik
- TUBITAK National Observatory (TUG), Akdeniz University Campus, 07058 Antalya, Turkey
| | - S Kalkan
- Ondokuz Mayis University Observatory, Space Research Center, 55200 Kurupelit, Turkey
| | - Y Guney
- Atatürk University, Science Faculty, Department of Physics, 25240 Erzurum, Turkey
| | - M S Niaei
- Atatürk University, Astrophysics Research and Application Center (ATASAM), 25240 Erzurum, Turkey
| | - O Satir
- Atatürk University, Astrophysics Research and Application Center (ATASAM), 25240 Erzurum, Turkey
| | - C Yesilyaprak
- Atatürk University, Astrophysics Research and Application Center (ATASAM), 25240 Erzurum, Turkey.,Atatürk University, Science Faculty, Department of Astronomy and Astrophysics, 25240 Erzurum, Turkey
| | - C Puskullu
- Canakkale Onsekiz Mart University, Astrophysics Research Center (ARC) and Ulupınar Observatory (UPO), Canakkale, Turkey
| | - A Kabas
- Canakkale Onsekiz Mart University, Astrophysics Research Center (ARC) and Ulupınar Observatory (UPO), Canakkale, Turkey
| | - O Demircan
- Canakkale Onsekiz Mart University, Astrophysics Research Center (ARC) and Ulupınar Observatory (UPO), Canakkale, Turkey
| | - J Alikakos
- Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, GR-15236 Penteli, Greece
| | - V Charmandaris
- Institute for Astronomy, Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, GR-15236 Penteli, Greece.,Department of Physics, University of Crete, GR-71003 Heraklion, Greece
| | - G Leto
- INAF-Catania Astrophysical Observatory, Via Santa Sofia 78, I-95123 Catania, Italy
| | - J Ohlert
- Michael Adrian Observatorium, Astronomie Stiftung Trebur, Fichtenstraße 7, 65468 Trebur, Germany.,University of Applied Sciences, Technische Hochschule Mittelhessen, Wilhelm-Leuschner-Straße 13, D-61169 Friedberg, Germany
| | - J M Christille
- Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA), Lignan 39, 11020 Nus, Italy
| | - R Szakáts
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege 15-17, H-1121 Budapest, Hungary
| | - A Takácsné Farkas
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege 15-17, H-1121 Budapest, Hungary
| | - E Varga-Verebélyi
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege 15-17, H-1121 Budapest, Hungary
| | - G Marton
- Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly Thege 15-17, H-1121 Budapest, Hungary
| | - A Marciniak
- Astronomical Observatory Institute, Faculty of Physics, A. Mickiewicz University, Słoneczna 36, 60-286 Poznań, Poland
| | - P Bartczak
- Astronomical Observatory Institute, Faculty of Physics, A. Mickiewicz University, Słoneczna 36, 60-286 Poznań, Poland
| | - T Santana-Ros
- Astronomical Observatory Institute, Faculty of Physics, A. Mickiewicz University, Słoneczna 36, 60-286 Poznań, Poland
| | - M Butkiewicz-Bąk
- Astronomical Observatory Institute, Faculty of Physics, A. Mickiewicz University, Słoneczna 36, 60-286 Poznań, Poland
| | - G Dudziński
- Astronomical Observatory Institute, Faculty of Physics, A. Mickiewicz University, Słoneczna 36, 60-286 Poznań, Poland
| | - V Alí-Lagoa
- Max-Planck-Institut für Extraterrestrische Physik, D-85741 Garching, Germany
| | - K Gazeas
- Section of Astrophysics, Astronomy and Mechanics, Department of Physics, National and Kapodistrian University of Athens, GR-15784 Athens, Greece
| | - L Tzouganatos
- Section of Astrophysics, Astronomy and Mechanics, Department of Physics, National and Kapodistrian University of Athens, GR-15784 Athens, Greece
| | - N Paschalis
- Nunki Observatory, Skiathos Island 37002, Greece
| | - V Tsamis
- Ellinogermaniki Agogi Observatory, Dimitriou Panagea street, GR-15351 Athens, Greece
| | - A Sánchez-Lavega
- Departamento de Física Aplicada I, Escuela de Ingeniería de Bilbao, Universidad del País Vasco UPV/EHU, Plaza Torres Quevedo 1, 48013 Bilbao, Spain
| | - S Pérez-Hoyos
- Departamento de Física Aplicada I, Escuela de Ingeniería de Bilbao, Universidad del País Vasco UPV/EHU, Plaza Torres Quevedo 1, 48013 Bilbao, Spain
| | - R Hueso
- Departamento de Física Aplicada I, Escuela de Ingeniería de Bilbao, Universidad del País Vasco UPV/EHU, Plaza Torres Quevedo 1, 48013 Bilbao, Spain
| | - J C Guirado
- Observatori Astronòmic de la Universitat de València, Catedrático José Beltrán, 2, 46980 Paterna, Spain.,Departament d'Astronomia i Astrofísica, Universitat de València, Calle Dr Moliner 50, E-46100 Burjassot, Spain
| | - V Peris
- Observatori Astronòmic de la Universitat de València, Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - R Iglesias-Marzoa
- Centro de Estudios de Física del Cosmos de Aragón, Plaza de San Juan 1, 2ª planta, 44001 Teruel, Spain.,Departamento de Astrofísica, Universidad de La Laguna, Avenida Astrofísico Fco Sánchez, 38200 La Laguna, Spain
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Olave C, Morales N, Uberti B, Henriquez C, Sarmiento J, Ortloff A, Folch H, Moran G. Tamoxifen induces apoptotic neutrophil efferocytosis in horses. Vet Res Commun 2018; 42:57-63. [PMID: 29297134 DOI: 10.1007/s11259-017-9709-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 12/26/2017] [Indexed: 02/08/2023]
Abstract
Macrophages and neutrophils are important cellular components in the process of acute inflammation and its subsequent resolution, and evidence increasingly suggests that they play important functions during the resolution of chronic, adaptive inflammatory processes. Exacerbated neutrophil activity can be harmful to surrounding tissues; this is important in a range of diseases, including allergic asthma and chronic obstructive pulmonary disease in humans, and equine asthma (also known as recurrent airway obstruction (RAO). Tamoxifen (TX) is a non-steroidal estrogen receptor modulator with effects on cell growth and survival. Previous studies showed that TX treatment in horses with induced acute pulmonary inflammation promoted early apoptosis of blood and BALF neutrophils, reduction of BALF neutrophils, and improvement in animals' clinical status. The aim of this study was to describe if TX induces in vitro efferocytosis of neutrophils by alveolar macrophages. Efferocytosis assay, myeloperoxidase (MPO) detection and translocation phosphatidylserine (PS) were performed on neutrophils isolated from peripheral blood samples from five healthy horses. In in vitro samples from heathy horses, TX treatment increases the phenomenon of efferocytosis of peripheral neutrophils by alveolar macrophages. Similar increases in supernatant MPO concentration and PS translocation were observed in TX-treated neutrophils, compared to control cells. In conclusion, these results confirm that tamoxifen has a direct effect on equine peripheral blood neutrophils, through stimulation of the engulfment of apoptotic neutrophils by alveolar macrophages.
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Affiliation(s)
- C Olave
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - N Morales
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - B Uberti
- Department of Clinical Veterinary Sciences, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - C Henriquez
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile
| | - J Sarmiento
- Department of Physiology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - A Ortloff
- College of Veterinary Medicine, Universidad Catolica de Temuco, Temuco, Chile
| | - H Folch
- Department of Immunology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - G Moran
- Department of Pharmacology, Faculty of Veterinary Sciences, Universidad Austral de Chile, Valdivia, Chile.
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Olaya A, Morales N, Nieto JA, Rodríguez Á, Díaz A. Mapeo y ablación por radiofrecuencia a cielo abierto: un caso de taquicardia ventricular refractaria en anomalía de Ebstein. Revista Colombiana de Cardiología 2017. [DOI: 10.1016/j.rccar.2016.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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28
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Crutchik D, Morales N, Vázquez-Padín JR, Garrido JM. Enhancement of struvite pellets crystallization in a full-scale plant using an industrial grade magnesium product. Water Sci Technol 2017; 75:609-618. [PMID: 28192355 DOI: 10.2166/wst.2016.527] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A full-scale struvite crystallization system was operated for the treatment of the centrate obtained from the sludge anaerobic digester in a municipal wastewater treatment plant. Additionally, the feasibility of an industrial grade Mg(OH)2 as a cheap magnesium and alkali source was also investigated. The struvite crystallization plant was operated for two different periods: period I, in which an influent with low phosphate concentration (34.0 mg P·L-1) was fed to the crystallization plant; and period II, in which an influent with higher phosphate concentration (68.0 mg P·L-1) was used. A high efficiency of phosphorus recovery by struvite crystallization was obtained, even when the effluent treated had a high level of alkalinity. Phosphorus recovery percentage was around 77%, with a phosphate concentration in the effluent between 10.0 and 30.0 mg P·L-1. The experiments gained struvite pellets of 0.5-5.0 mm size. Moreover, the consumption of Mg(OH)2 was estimated at 1.5 mol Mg added·mol P recovered-1. Thus, industrial grade Mg(OH)2 can be an economical alternative as magnesium and alkali sources for struvite crystallization at industrial scale.
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Affiliation(s)
- D Crutchik
- Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, Santiago de Compostela 15782, Spain E-mail: ; Faculty of Engineering and Sciences, Universidad Adolfo Ibáñez, Diagonal Las Torres 2640, Santiago, Chile
| | - N Morales
- FCC Aqualia, Guillarei WWTP, Camino de la Veiga s/n, Tui E-36720, Spain
| | - J R Vázquez-Padín
- FCC Aqualia, Guillarei WWTP, Camino de la Veiga s/n, Tui E-36720, Spain
| | - J M Garrido
- Department of Chemical Engineering, Institute of Technology, University of Santiago de Compostela, Santiago de Compostela 15782, Spain E-mail:
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29
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Borlone C, Morales N, Henriquez C, Folch H, Olave C, Sarmiento J, Uberti B, Moran G. In Vitro effects of tamoxifen on equine neutrophils. Res Vet Sci 2016; 110:60-64. [PMID: 28159238 DOI: 10.1016/j.rvsc.2016.11.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 10/26/2016] [Accepted: 11/03/2016] [Indexed: 10/20/2022]
Abstract
Neutrophils participate in innate immunity as the first line of host defense against microorganisms. However, exacerbated neutrophil activity can be harmful to surrounding tissues; this is important in a range of diseases, including allergic asthma and chronic obstructive pulmonary disease in humans, and equine asthma (also known as recurrent airway obstruction (RAO). Tamoxifen (TX) is a non-steroidal estrogen receptor modulator with effects on cell growth and survival. Previous preliminary studies showed that TX treatment in horses with induced acute pulmonary inflammation promoted early apoptosis of blood and BALF neutrophils, reduction of BALF neutrophils, and improvement in animals' clinical status. The aim of this study was to evaluate the in vitro effect of TX on functional tests in equine peripheral blood neutrophils. Chemotaxis, respiratory burst production and phagocytosis assays were performed on neutrophils isolated from peripheral blood samples from 10 healthy horses. Results showed that IL-8 stimulated cells decrease their chemotactic index when treated with TX (1 and 10μM). Respiratory burst production was also dampened after treatment with TX. In conclusion, these results confirm that tamoxifen has a direct action on equine peripheral blood neutrophils. However, more in vivo and in vitro studies are required to fully understand the mechanisms of action of TX on neutrophils, in order to elucidate if it can be used as treatment in disorders such as allergic asthma in humans and horses.
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Affiliation(s)
- C Borlone
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - N Morales
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - C Henriquez
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - H Folch
- Department of Immunology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - C Olave
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - J Sarmiento
- Department of Physiology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - B Uberti
- Department of Veterinary Clinical Sciences, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile
| | - G Moran
- Department of Pharmacology, Faculty of Veterinary Science, Universidad Austral de Chile, Valdivia, Chile.
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Fra-Vázquez A, Morales N, Figueroa M, Val del Río A, Regueiro L, Campos J, Mosquera-Corral A. Bacterial community dynamics in long-term operation of a pilot plant using aerobic granular sludge to treat pig slurry. Biotechnol Prog 2016; 32:1212-1221. [DOI: 10.1002/btpr.2314] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 04/22/2016] [Indexed: 12/22/2022]
Affiliation(s)
- A. Fra-Vázquez
- Dept. of Chemical Engineering, Group of Environmental Engineering and Bioprocesses; Inst. of Technology, University of Santiago de Compostela; Santiago de Compostela 15705 Spain
| | - N. Morales
- Dept. of Chemical Engineering, Group of Environmental Engineering and Bioprocesses; Inst. of Technology, University of Santiago de Compostela; Santiago de Compostela 15705 Spain
| | - M. Figueroa
- Dept. of Chemical Engineering, Group of Environmental Engineering and Bioprocesses; Inst. of Technology, University of Santiago de Compostela; Santiago de Compostela 15705 Spain
| | - A. Val del Río
- Dept. of Chemical Engineering, Group of Environmental Engineering and Bioprocesses; Inst. of Technology, University of Santiago de Compostela; Santiago de Compostela 15705 Spain
| | - L. Regueiro
- Dept. of Chemical Engineering, Group of Environmental Engineering and Bioprocesses; Inst. of Technology, University of Santiago de Compostela; Santiago de Compostela 15705 Spain
| | - J.L. Campos
- Faculty of Engineering and Science; Universidad Adolfo Ibáñez; Avda. Padre Hurtado 750 Viña del Mar Chile
| | - A. Mosquera-Corral
- Dept. of Chemical Engineering, Group of Environmental Engineering and Bioprocesses; Inst. of Technology, University of Santiago de Compostela; Santiago de Compostela 15705 Spain
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Jiménez A, Olaya A, Morales N, Sánchez J. Capítulo 14. Utilidad del mapeo tridimensional en la ablación de taquicardia ventricular en pacientes con miocardiopatía hipertrófica, taquicardia ventricular catecolaminérgica y síndrome de Brugada. Revista Colombiana de Cardiología 2016. [DOI: 10.1016/j.rccar.2016.01.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Perez B, Henriquez C, Sarmiento J, Morales N, Folch H, Galesio JS, Uberti B, Morán G. Tamoxifen as a new therapeutic tool for neutrophilic lung inflammation. Respirology 2015; 21:112-8. [PMID: 26510482 DOI: 10.1111/resp.12664] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 07/19/2015] [Accepted: 07/29/2015] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND OBJECTIVE Neutrophilic asthma is an important disease subgroup, including patients with severe phenotypes and erratic responses to standard treatments. Tamoxifen (TX), a selective estrogen receptor modulator (SERM) used as treatment of human breast cancer, has been shown to induce early apoptosis of equine blood and bronchoalveolar lavage fluid (BALF) neutrophils in vitro. Equine recurrent airway obstruction (RAO) is a naturally occurring neutrophilic condition, closely related with human asthma. Our purpose was to investigate the therapeutic potential of tamoxifen in horses with neutrophilic lung inflammation. METHODS Twelve horses underwent acute lung inflammation through exposure to allergens known to cause RAO, after which they received treatment with either tamoxifen or dexamethasone. Outcome measures included evaluation of clinical signs, BALF cytology, and early apoptosis of blood and BALF neutrophils. RESULTS Tamoxifen treatment decreased BALF neutrophil counts (65.3 ± 19.38% before treatment; 7.6 ± 4.5% 2 days post-treatment,; and 13.6 ± 9.3% 5 days post-treatment). A similar decrease was observed with dexamethasone treatment (48.6 ± 5.88% before treatment; 11.5 ± 8.1% 2 days post-treatment; 14.6 ± 10.3% 5 days post-treatment). Clinical and endoscopic scores improved in both treatment groups. Tamoxifen treatment significantly increased early apoptosis of peripheral blood neutrophils at 5 days post-treatment (27.04 ± 15.2%), and in BALF neutrophils at 2 and 5 days post-treatment (42.11 ± 11.67% and 48.98 ± 2.6%, respectively). CONCLUSION Tamoxifen treatment in horses with induced acute pulmonary inflammation promoted early apoptosis of blood and BALF neutrophils, reduction in BALF neutrophils and improvement in the animals' clinical status.
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Affiliation(s)
- Barbara Perez
- Department of Pharmacology, Austral University of Chile, Valdivia, Chile.,Graduate School, Austral University of Chile, Valdivia, Chile
| | - Claudio Henriquez
- Department of Pharmacology, Austral University of Chile, Valdivia, Chile
| | - Jose Sarmiento
- Department of Physiology, Austral University of Chile, Valdivia, Chile
| | - Natalia Morales
- Department of Pharmacology, Austral University of Chile, Valdivia, Chile
| | - Hugo Folch
- Department of Immunology, Faculty of Medicine, Austral University of Chile, Valdivia, Chile
| | - Juan S Galesio
- Department of Clinical Science, Faculty of Veterinary Science, Austral University of Chile, Valdivia, Chile
| | - Benjamin Uberti
- Department of Clinical Science, Faculty of Veterinary Science, Austral University of Chile, Valdivia, Chile
| | - Gabriel Morán
- Department of Pharmacology, Austral University of Chile, Valdivia, Chile
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García R, Soto G, Escalona N, Sepúlveda C, Orellana MJ, Morales N, Radovic LR, Buitrago-Sierra R, Rodriguez-Reinoso F, Sepúlveda-Escribano A. METHANE DRY REFORMING OVER Ni SUPPORTED ON PINE SAWDUST ACTIVATED CARBON: EFFECTS OF SUPPORT SURFACE PROPERTIES AND METAL LOADING. QUIM NOVA 2015. [DOI: 10.5935/0100-4042.20150058] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Morales N, Val del Río A, Vázquez-Padín JR, Gutiérrez R, Fernández-González R, Icaran P, Rogalla F, Campos JL, Méndez R, Mosquera-Corral A. Influence of dissolved oxygen concentration on the start-up of the anammox-based process: ELAN®. Water Sci Technol 2015; 72:520-527. [PMID: 26247749 DOI: 10.2166/wst.2015.233] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The anammox-based process ELAN® was started-up in two different sequencing batch reactor (SBR) pilot plant reactors treating municipal anaerobic digester supernatant. The main difference in the operation of both reactors was the dissolved oxygen (DO) concentration in the bulk liquid. SBR-1 was started at a DO value of 0.4 mg O2/L whereas SBR-2 was started at DO values of 3.0 mg O2/L. Despite both reactors working at a nitrogen removal rate of around 0.6 g N/(L d), in SBR-1, granules represented only a small fraction of the total biomass and reached a diameter of 1.1 mm after 7 months of operation, while in SBR-2 the biomass was mainly composed of granules with an average diameter of 3.2 mm after the same operational period. Oxygen microelectrode profiling revealed that granules from SBR-2 where only fully penetrated by oxygen with DO concentrations of 8 mg O2/L while granules from SBR-1 were already oxygen penetrated at DO concentrations of 1 mg O2/L. In this way granules from SBR-2 performed better due to the thick layer of ammonia oxidizing bacteria, which accounted for up to 20% of all the microbial populations, which protected the anammox bacteria from non-suitable liquid media conditions.
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Affiliation(s)
- N Morales
- FCC Aqualia, Guillarei WWTP, Tui, E-36720, Spain E-mail:
| | - A Val del Río
- Department of Chemical Engineering, School of Engineering, University of Santiago de Compostela, Lope Gomez de Marzoa s/n, E-15705 Santiago de Compostela, Spain
| | | | - R Gutiérrez
- FCC Aqualia, Guillarei WWTP, Tui, E-36720, Spain E-mail:
| | | | - P Icaran
- FCC Aqualia, Guillarei WWTP, Tui, E-36720, Spain E-mail:
| | - F Rogalla
- FCC Aqualia, Guillarei WWTP, Tui, E-36720, Spain E-mail:
| | - J L Campos
- Department of Chemical Engineering, School of Engineering, University of Santiago de Compostela, Lope Gomez de Marzoa s/n, E-15705 Santiago de Compostela, Spain; Faculty of Engineering and Science, University Adolfo Ibáñez, Avda Padre Hurtado 750, Viña del Mar, Chile
| | - R Méndez
- Department of Chemical Engineering, School of Engineering, University of Santiago de Compostela, Lope Gomez de Marzoa s/n, E-15705 Santiago de Compostela, Spain
| | - A Mosquera-Corral
- Department of Chemical Engineering, School of Engineering, University of Santiago de Compostela, Lope Gomez de Marzoa s/n, E-15705 Santiago de Compostela, Spain
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Vázquez-Padín JR, Morales N, Gutiérrez R, Fernández R, Rogalla F, Barrio JP, Campos JL, Mosquera-Corral A, Méndez R. Implications of full-scale implementation of an anammox-based process as post-treatment of a municipal anaerobic sludge digester operated with co-digestion. Water Sci Technol 2014; 69:1151-1158. [PMID: 24647178 DOI: 10.2166/wst.2013.795] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The feasibility of treating the supernatant of a municipal sludge digester supplemented with co-substrates by means of an anammox-based process (ELAN(®)) was tested in Guillarei (NW of Spain). Ammonia concentration measured in the supernatant of the sludge digester varied in the range 800-1,500 g N/m(3) due to the fact that the sludge produced in the plant was co-digested with wastes coming from surrounding food industries. Treating this supernatant in the ELAN(®) reactor, nitrogen removal rates up to 1.1 kg N/(m(3) d) were reached in experiments run in a pilot plant reactor operated in batch mode. No nitrite oxidation was registered after several months of operation despite the average dissolved oxygen (DO) concentrations being 1.5 g O2/m(3) and the temperature reaching values as low as 18 °C. By keeping the DO set point at 1-2 g O2/m(3) and tuning the hydraulic retention time, the stability of the process was guaranteed and the presence of co-substrates in the anaerobic digester did not affect negatively the operation of the autotrophic nitrogen removal process. Due to the success of the pilot plant experiment, an upscale of the process to full scale is proposed. Mass balances applied to Guillarei wastewater treatment plant revealed that in the main stream line the average denitrification rate calculated with the data of year 2011 was 226 kg N/d. Since the nitrogen removal efficiency is limited by the amount of readily biodegradable organic matter available to carry out denitrification in the water line, the implementation of an anammox-based process to treat the supernatant seems the best option to improve the effluent quality in terms of nitrogen content. The nitrogen removal rate in the sludge line would be 30 times higher than the one in the water line. The implementation of the process would improve the energetic balance and the nitrogen removal performance of the plant.
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Affiliation(s)
| | - N Morales
- Aqualia (FCC Group), Guillarei WWTP, Tui, Spain E-mail:
| | - R Gutiérrez
- Aqualia (FCC Group), Guillarei WWTP, Tui, Spain E-mail:
| | - R Fernández
- Aqualia (FCC Group), Guillarei WWTP, Tui, Spain E-mail:
| | - F Rogalla
- Aqualia (FCC Group), Guillarei WWTP, Tui, Spain E-mail:
| | - J P Barrio
- Departamento de Explotación de la EPOSH, Administración Hidráulica de Galicia, Santiago de Compostela, Spain
| | - J L Campos
- University of Santiago de Compostela, Department of Chemical Engineering, School of Engineering, Lope Gomez de Marzoa s/n, E-15782 Santiago de Compostela, Spain
| | - A Mosquera-Corral
- University of Santiago de Compostela, Department of Chemical Engineering, School of Engineering, Lope Gomez de Marzoa s/n, E-15782 Santiago de Compostela, Spain
| | - R Méndez
- University of Santiago de Compostela, Department of Chemical Engineering, School of Engineering, Lope Gomez de Marzoa s/n, E-15782 Santiago de Compostela, Spain
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Morales N, Figueroa M, Fra-Vázquez A, Val del Río A, Campos J, Mosquera-Corral A, Méndez R. Operation of an aerobic granular pilot scale SBR plant to treat swine slurry. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.06.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sarmiento J, Perez B, Morales N, Henriquez C, Vidal L, Folch H, Galecio JS, Morán G. Apoptotic effects of tamoxifen on leukocytes from horse peripheral blood and bronchoalveolar lavage fluid. Vet Res Commun 2013; 37:333-8. [PMID: 23846832 DOI: 10.1007/s11259-013-9571-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2013] [Indexed: 11/26/2022]
Abstract
A reduction in inflammatory cell apoptosis is an important concept in the maintenance of inflammation and a potential target for the resolution of inflammation in many inflammatory diseases. Dysregulation of apoptosis has been implicated in a range of diseases, including tumors, neurodegenerative disorders and autoimmunity, and may also be implicated in allergic asthma. In horses, recurrent airway obstruction (RAO) is an asthma-like condition that is characterized increased survival neutrophil bronchial. Tamoxifen is a synthetic, non-steroidal, anti-estrogen agent that is widely used for treating all stages of breast cancer and has been approved for the prevention of breast cancer in high-risk women. The observed efficacy of tamoxifen has been attributed to both growth arrest and the induction of apoptosis. Therefore, the aim of our study was to evaluate the ability of tamoxifen to induce apoptosis in vitro in granulocytic cells from peripheral blood and in mononuclear cells from bronchoalveolar lavage fluid (BALF) in horses. Flow cytometry using commercial AnnexinV-FITC and propidium iodide was used to quantify early and late apoptotic leukocytes, respectively. The results showed a significant increase in early apoptosis in peripheral blood and bronchial granulocytic cells treated with tamoxifen. The rate of early apoptosis of mononuclear cells from blood and BALF when incubated with tamoxifen was significantly lower compared with granulocytic cells. We did not observe a direct effect of tamoxifen on late apoptosis in any of the in vitro assays in the cell types used here. These results indicate that the apoptotic mechanisms under these experimental conditions would affect only blood and BALF granulocytic cells, particularly in early apoptosis. Finally, further in vitro and in vivo studies are needed to better understand apoptotic mechanisms because tamoxifen could be used to treat chronic, inflammatory pathologies associated with granulocytes and allergic diseases, such as asthma or equine RAO.
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Affiliation(s)
- J Sarmiento
- Department of Phisiology, Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile
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Val del Río A, Morales N, Figueroa M, Mosquera-Corral A, Campos JL, Méndez R. Effects of the cycle distribution on the performance of SBRs with aerobic granular biomass. Environ Technol 2013; 34:1463-1472. [PMID: 24191480 DOI: 10.1080/09593330.2012.753470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The aerobic granular systems are mainly sequencing batch reactors where the biomass is submitted to feast-famine regimes to promote its aggregation in the form of granules. In these systems, different cycle distributions can be applied for the simultaneous removal of organic matter, nitrogen and phosphorus. In this work two strategies were followed in order to evaluate the effects of the cycle distribution. In the first experiment, the length of the operational cycle was decreased in order to maximize the treatment capacity and consequently the famine/feast ratio was also decreased. In the second experiment, an initial anoxic phase was implemented to improve nitrogen removal efficiency. The results obtained showed that to reduce the famine/feast ratio from 10 to 5 was possible by increasing the treated organic and nitrogen loading rates in the system to 33%, without affecting the removal efficiencies of organic matter (97%) and nitrogen (64%) and producing a slight detriment of the granules characteristics. On the other hand, the implementation of an anoxic phase of 30 min previous to the aerobic one with a pulse-fed mode increased the nitrogen removal of pig manure from 20 to 60%, while the cycle configuration comprising a continuous feeding simultaneous with an anoxic phase of 60 min did not enhance the nitrogen removal and even worsen the ammonia oxidation.
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Affiliation(s)
- A Val del Río
- Department of Chemical Engineering, School of Engineering, University of Santiago de Compostela, Santiago de Compostela, Spain.
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Romero E, Angeli M, Velasco M, Azar E, Bueno O, Lema G, Morales N, Nuchi Y, Rasines C, Wagner A. Double-Blind Placebo-Controlled Trial of Terazosin Effect on Blood Pressure and Urinary Output of Dopamine in Hypertensive Patients. J Clin Pharmacol 2013; 32:816-21. [PMID: 1358922 DOI: 10.1002/j.1552-4604.1992.tb03888.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
In a parallel, double-blind study, 12 untreated hypertensive patients received terazosin (2-4 mg/day for 4 weeks), and 12 received placebo during the same period. Systolic and diastolic blood pressure decreased significantly in the terazosin group, from 150 +/- 5.0 mmHg systolic and 99.6 +/- 2.0 diastolic before treatment, to 134.0 +/- 7.0 systolic and 85.6 +/- 3.0 mmHg diastolic at week 4 of treatment. No significant blood pressure changes occurred in the placebo group. Blood pressure decrease showed a positive correlation (r = .62 and r = .52 for systolic and diastolic blood pressure, respectively) with the patient's age (P less than .05). Total plasma cholesterol decreased 18% in the terazosin group (P less than .05) and 9% in the placebo group (P greater than .05). Urinary dopamine excretion decreased significantly from 692.8 +/- 180.0 to 330.5 +/- 52.0 micrograms/24 hours in the terazosin group (P less than .05) and showed a nonsignificant increase in the placebo group. Compared with 22 age- and sex-matched healthy volunteers, urinary dopamine excretion in the hypertensive group before treatment was not statistically different (779.3 +/- 83.1 micrograms/24 hours). Dopamine excretion was higher in untreated hypertensive men and in male healthy volunteers compared with women. The decrease of urinary dopamine excretion observed under terazosin treatment could be due to a decrease of kidney dopamine synthesis or release induced by blood pressure reduction, or secondarily to the blockade of kidney alpha 1-receptors, modulating dopamine excretion. No significant changes were observed in urinary excretion of noradrenaline and adrenaline.
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Affiliation(s)
- E Romero
- Department of Pharmacology, J.M. Vargas School of Medicine, Vargas Hospital, Caracas, Venezuela
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Ortiz JL, Sicardy B, Braga-Ribas F, Alvarez-Candal A, Lellouch E, Duffard R, Pinilla-Alonso N, Ivanov VD, Littlefair SP, Camargo JIB, Assafin M, Unda-Sanzana E, Jehin E, Morales N, Tancredi G, Gil-Hutton R, de la Cueva I, Colque JP, Da Silva Neto DN, Manfroid J, Thirouin A, Gutiérrez PJ, Lecacheux J, Gillon M, Maury A, Colas F, Licandro J, Mueller T, Jacques C, Weaver D, Milone A, Salvo R, Bruzzone S, Organero F, Behrend R, Roland S, Vieira-Martins R, Widemann T, Roques F, Santos-Sanz P, Hestroffer D, Dhillon VS, Marsh TR, Harlingten C, Bagatin AC, Alonso ML, Ortiz M, Colazo C, Lima HJF, Oliveira AS, Kerber LO, Smiljanic R, Pimentel E, Giacchini B, Cacella P, Emilio M. Albedo and atmospheric constraints of dwarf planet Makemake from a stellar occultation. Nature 2012; 491:566-9. [PMID: 23172214 DOI: 10.1038/nature11597] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Accepted: 09/17/2012] [Indexed: 11/09/2022]
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Morales N, Figueroa M, Mosquera-Corral A, Campos J, Méndez R. Aerobic granular-type biomass development in a continuous stirred tank reactor. Sep Purif Technol 2012. [DOI: 10.1016/j.seppur.2012.01.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Díaz M, Nuevo L, Sánchez M, Jordan J, Morales N. P-572 - Descriptive study of the patients attended at the psychiatric emergency service of the complejo hospitalario universitario albacete (CHUA). Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74739-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Díaz M, Nuevo L, Sánchez M, Jordan J, Morales N. P-571 - Patients attended at the psychiatric emergency service of the complejo hospitalario universitario albacete (CHUA). Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74738-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Val del Río A, Morales N, Isanta E, Mosquera-Corral A, Campos JL, Steyer JP, Carrère H. Thermal pre-treatment of aerobic granular sludge: impact on anaerobic biodegradability. Water Res 2011; 45:6011-20. [PMID: 21924756 DOI: 10.1016/j.watres.2011.08.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 08/22/2011] [Accepted: 08/29/2011] [Indexed: 05/16/2023]
Abstract
The aerobic granular systems are a good alternative to the conventional activated sludge (AS) ones to reduce the production of sludge generated in wastewater treatment plants (WWTP). Although the quantity of produced sludge is low its post-treatment is still necessary. In the present work the application of the anaerobic digestion combined with a thermal pre-treatment was studied to treat two different aerobic granular biomasses: one from a reactor fed with pig manure (G1) and another from a reactor fed with a synthetic medium to simulate an urban wastewater (G2). The results obtained with the untreated aerobic granular biomasses showed that their anaerobic biodegradability (BD) (33% for G1 and 49% for G2) was similar to that obtained for an activated sludge (30-50%) and demonstrate the feasibility of their anaerobic digestion. The thermal pre-treatment before the anaerobic digestion was proposed as a good option to enhance the BD when this was initially low (33% G1) with an enhancement between 20% at 60 °C and 88% at 170 °C with respect to the untreated sludge. However when the initial BD was higher (49% G2) the thermal pre-treatment produced a slight improvement in the methane production (14% and 18%) and at high temperatures (190 and 210 °C) which did not justify the application of such a treatment.
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Affiliation(s)
- A Val del Río
- Department of Chemical Engineering, School of Engineering, University of Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
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Diaz M, Morales N, Ruiz J, Nieto K, Iniesta E, Martín M, Fraguas D. Eligibility of the patients admitted to psychiatric inpatient units for participation in catie clinical trial. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)73073-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
IntroductionClinical trials (CT) are the main scientific support of the recommendations of pharmacological treatment of patients with schizophrenia. However, CT tend to strengthen the internal validity at the expense of external validity and the ability to generalize the results to the clinical population. For this reason, in recent years have developed large practical clinical trials that expand the inclusion criteria to incorporate as many real patients as possible. The first and most significant of these trials was the CATIE study (Lieberman et al, 2005).ObjectivesTo analyze eligibility for participation in CATIE of patients admitted during 2009 in a psychiatric inpatient unit with a diagnosis of schizophrenia.MethodsA total of 145 patients (27.6% females, mean age 39.6+/−12.8 years), consecutively admitted to an inpatient psychiatric ward with a clinical diagnosis of schizophrenia were assessed to test if they would fulfill criteria for participation in CATIE.Results60 (41.4%) patients did not fulfill CATIE inclusion criteria. Mental retardation (n = 22, p < 0.001), absence of informed consent (n = 15, p < 0.001) and refusal to take oral medication (n = 12, p < 0.001) were the main factors responsible for not meeting inclusion criteria.Meeting the criteria was not significantly related to gender or specific diagnosis.Conclusions41.4% of patients admitted to a psychiatric inpatient unit with a diagnosis of schizophrenia did not meet criteria for participation in the CATIE study.
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Morales N, Diaz M, Ruiz J, Portela M, Martinez M, Ruiz F, Lloret J, Lucas M, Mayordomo A, Fraguas D. Differences in antipsychotic combination (monotherapy versus polytherapy) between patients with schizophrenia and patients with other psychoses. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)72266-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
IntroductionAntipsychotic therapy is the cornerstone of the treatment of schizophrenia and other psychoses. Although clinical guidelines tend to recommend the use of antipsychotics in monotherapy, combination of two or more antipsychotics (that is, polytherapy) is a common habit in clinical practice.ObjectivesTo assess differences in antipsychotic combination profile between patients with schizophrenia and patients with other psychoses.MethodsA total of 241 patients (40.2% females, mean age 39.7+/−13.0 years) consecutively admitted during 2009 to a psychiatric inpatient ward with diagnosis of schizophrenia and other psychoses were assessed.Results145 (60.2%) patients were diagnosed with schizophrenia while 96 patients (39.8%) were diagnosed with other psychoses (schizoaffective disorder n = 35, delusional disorder n = 8, schizophreniform disorder n = 8, brief psychotic disorder n = 13, psychotic disorder not otherwise specified n = 27, and other psychoses n = 5). Out of the total sample, polytherapy was used in 150 (62.2%) patients. A total of 100 (69.0%) patients with schizophrenia were on polytherapy, compared to 52.1% of those with other psychoses (p = 0.008). After controlling for age and gender, the association between a diagnosis of schizophrenia and being in polytherapy remained significant (p = 0.046).ConclusionsPatients diagnosed with schizophrenia are more prone to be in polytherapy than those with other psychoses.
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Vázquez-Padín JR, Fernández I, Morales N, Campos JL, Mosquera-Corral A, Méndez R. Autotrophic nitrogen removal at low temperature. Water Sci Technol 2011; 63:1282-1288. [PMID: 21436568 DOI: 10.2166/wst.2011.370] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In this work the autotrophic nitrogen removal was carried out at moderately low temperatures using two configurations: a) two-units one comprising a SHARON reactor coupled to an Anammox SBR and b) single-unit one consisting of a granular SBR performing the CANON process. At 20°C the two-units system was limited by the Anammox step and its nitrogen removal capacity was around ten times lower than the CANON system (0.08 g N/(L d) versus 1 g N/(L d)). When the CANON system was operated at 15°C the average removed nitrogen loading rate decreased to 0.2 g N/(L d). The CANON system was operated in order to limit the ammonia oxidation rate to avoid nitrite inhibition of Anammox bacteria. Since both, temperature and dissolved oxygen (DO) concentration regulate ammonia oxidizing bacteria activity, once the temperature of the reactor is decreased the DO concentration must be decreased to avoid the deeper oxygen penetration inside the granule which could cause inhibition of Anammox bacteria by oxygen and/or nitrite.
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Affiliation(s)
- J R Vázquez-Padín
- Department of Chemical Engineering, School of Engineering, University of Santiago de Compostela, Rua Lope Gómez de Marzoa s/n, E-15782, Santiago de Compostela, Spain.
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Abstract
In 1996, lymphosarcoma was observed in a captive adult female white-tailed deer (Odocoileus virginianus) from northeastern Kansas (USA). A subcutaneous mass on the deer's left cheek was surgically removed and lymphosarcoma was diagnosed. The mass recurred within 3 wk. A second surgical removal was attempted but the tumor had grown much larger, had become intimately involved with the buccal mucosa, and was beginning to interfere with mastication. For these reasons, the deer was euthanized. At postmortem examination the only abnormal findings were the primary tumor and enlarged ipsilateral parotid and mandibular lymph nodes. Histologically these tissues demonstrated changes characteristic of lymphosarcoma but no other organs had evidence of neoplastic disease. A diagnosis of focal lymphosarcoma with local metastasis was made. The organ distribution of lymphosarcoma in this deer differs from previously described cases of lymphosarcoma in cervids.
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Affiliation(s)
- R Scott Larsen
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas 66506, USA.
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Rivera-Gandia J, Morales N, Cox O, Huang SD. N-(o-tolyl)-2-bromo-4,5-dimethoxybenzamide. Acta Crystallogr C 1998; 54 ( Pt 1):69-71. [PMID: 9485570 DOI: 10.1107/s0108270197011839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The molecular structure of the title compound, C16H16BrNO3, consists of 2-bromo-4,5-dimethoxy-benzene and o-methylphenyl rings linked by an amide group. The two methoxy groups are almost coplanar with the phenyl ring.
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Affiliation(s)
- J Rivera-Gandia
- Department of Chemistry, University of Puerto Rico, San Juan 00931
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Winkle SA, Aloyo MC, Lee-Chee T, Morales N, Zambrano TY, Sheardy RD. The interface between an alternating CG motif and a random sequence motif displays altered nuclease activity. J Biomol Struct Dyn 1992; 10:389-402. [PMID: 1466815 DOI: 10.1080/07391102.1992.10508654] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Previously we described the B-Z junctions produced in oligomers containing (5meCG)4 segments in the presence of 5.0 M NaCl or 50 uM Co(NH3)6+3 [Sheardy, R.D. & Winkle, S.A., Biochemistry 28, 720-725 (1989); Winkle, S.A., Aloyo, M.C., Morales, N., Zambrano, T.Y. & Sheardy, R.D., Biochemistry 30, 10601-10606 (1991)]. The circular dichroism spectra of an analogous unmethylated oligomer containing (CG)4, termed BZ-IV, in 5.0 M NaCl and in 50 uM Co(NH3)+3 suggest, however, that this oligomer does not form a B-Z hybrid. BZ-IV possesses Hha I sites (CGCG) in the (CG)4 segment and an Mbo I site (GATC) at the terminus of the (CG)4 segment. BZ-IV is equally digestible in the presence and absence of cobalt hexamine by Hha I, further indicating that the structure of BZ-IV is fully B-like under these conditions. The Mbo I cleavage site at the juncture between the (CG)4 segment and the adjacent random segment displays enhanced cleavage by both Mbo I and its isoschizomer Sau3AI in the presence of cobalt hexamine. In addition, exonuclease III digestion of BZ-IV is inhibited at this juncture. Actinomycin inhibits Mbo I activity in the presence of cobalt hexamine but not in the absence. Together, these results suggest that enzymes recognize the interfaces of (CG)n and adjacent random sequences as altered substrates even in the absence of a B-Z junction formation.
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Affiliation(s)
- S A Winkle
- Department of Chemistry, Florida International University, Miami 33199
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