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Lucas M, Diaz-Espejo A, Romero-Jimenez D, Peinado-Torrubia P, Delgado-Vaquero A, Álvarez R, Colmenero-Flores JM, Rosales MA. Chloride reduces plant nitrate requirement and alleviates low nitrogen stress symptoms. Plant Physiol Biochem 2024; 212:108717. [PMID: 38761542 DOI: 10.1016/j.plaphy.2024.108717] [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] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/12/2024] [Accepted: 05/08/2024] [Indexed: 05/20/2024]
Abstract
Chloride (Cl-) is traditionally categorized as an antagonist of nitrate (NO3-) because Cl- hinders plant NO3- transport and accumulation. However, we have recently defined Cl- as a beneficial macronutrient for higher plants, due to specific functions that lead to more efficient use of water, nitrogen (N) and CO2 under optimal N and water supply. When accumulated in leaves at macronutrient levels, Cl- promotes growth through osmotic, physiological, metabolic, anatomical and cellular changes that improve plant performance under optimal NO3- nutrition. Nitrate over-fertilization in agriculture can adversely affect crop yield and nature, while its deficiency limits plant growth. To study the relationship between Cl- nutrition and NO3- availability, we have characterized different physiological responses such as growth and yield, N-use efficiency, water status, photosynthesis, leaf anatomy, pigments and antioxidants in tomato plants treated with or without 5 mM Cl- salts and increasing NO3- treatments (3-15 mM). First, we have demonstrated that 5 mM Cl- application can reduce the use of NO3- in the nutrient solution by up to half without detriment to plant growth and yield in tomato and other horticultural plants. Second, Cl- application reduced stress symptoms and improved plant growth under low-NO3- conditions. The Cl--dependent resistance to low-N stress resulted from: more efficient use of the available NO3-; improved plant osmotic and water status regulation; improved stomatal conductance and photosynthetic rate; and better antioxidant response. We proposed that beneficial Cl- levels increase the crop ability to grow better with lower NO3- requirements and withstand N deficiency, promoting a more sustainable and resilient agriculture.
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Affiliation(s)
- Marta Lucas
- Group of Plant Ion and Water Regulation, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas (CSIC), 41012, Seville, Spain; Laboratory of Plant Molecular Ecophysiology, IRNAS, CSIC, 41012, Seville, Spain
| | - Antonio Diaz-Espejo
- Laboratory of Plant Molecular Ecophysiology, IRNAS, CSIC, 41012, Seville, Spain; Irrigation and Crop Ecophysiology Group, IRNAS, CSIC, 41012, Seville, Spain
| | - David Romero-Jimenez
- Group of Plant Ion and Water Regulation, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas (CSIC), 41012, Seville, Spain; Laboratory of Plant Molecular Ecophysiology, IRNAS, CSIC, 41012, Seville, Spain
| | - Procopio Peinado-Torrubia
- Group of Plant Ion and Water Regulation, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas (CSIC), 41012, Seville, Spain
| | - Alba Delgado-Vaquero
- Group of Plant Ion and Water Regulation, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas (CSIC), 41012, Seville, Spain; Laboratory of Plant Molecular Ecophysiology, IRNAS, CSIC, 41012, Seville, Spain
| | - Rosario Álvarez
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, 41080, Sevilla, Spain
| | - José M Colmenero-Flores
- Group of Plant Ion and Water Regulation, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas (CSIC), 41012, Seville, Spain; Laboratory of Plant Molecular Ecophysiology, IRNAS, CSIC, 41012, Seville, Spain
| | - Miguel A Rosales
- Group of Plant Ion and Water Regulation, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), Consejo Superior de Investigaciones Científicas (CSIC), 41012, Seville, Spain; Laboratory of Plant Molecular Ecophysiology, IRNAS, CSIC, 41012, Seville, Spain; Department of Stress, Development and Signaling in Plants, Estación Experimental Del Zaidín (EEZ), CSIC, 18008, Granada, Spain.
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2
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Matas-Escamilla A, Álvarez R, García-Carro F, Álvarez-Alonso L, Cienfuegos P, Menéndez J, Ordóñez A. Mine water as a source of energy: an application in a coalfield in Laciana Valley (León, NW Spain). Clean Technol Environ Policy 2023:1-14. [PMID: 37359169 PMCID: PMC10158676 DOI: 10.1007/s10098-023-02526-y] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/08/2023] [Indexed: 06/28/2023]
Abstract
Mine water can be a renewable and economical source of geothermal and hydraulic energy. Nine discharges from closed and flooded coal mines in the Laciana Valley (León, NW Spain) have been studied. Various technologies for the energy use of mine water, as well as the influence of factors such as temperature, the need for water treatment, investment, potential customers and expansion capacity, have been evaluated by means of a decision-making tool. It is concluded that the most advantageous option is an open-loop geothermal system using the waters of a mountain mine, the temperature of which exceeds 14 °C and whose distance to customers is less than 2 km. A technical-economic viability study for a district heating network designed to supply heating and hot water to six public buildings in the nearby town of Villablino is presented. The proposed use of mine water might help areas that have been greatly affected socioeconomically by the closure of the mines and has other advantages compared to conventional energy systems, such as the reduction of CO2 emissions. Graphical Abstract It showing the advantages of using mine water as an energy source for district heating and a simplified layout. Supplementary Information The online version contains supplementary material available at 10.1007/s10098-023-02526-y.
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Affiliation(s)
| | - R. Álvarez
- Escuela de Ingeniería de Minas, Energía y Materiales, University of Oviedo, Oviedo, Asturias, Spain
| | | | | | - P. Cienfuegos
- Escuela de Ingeniería de Minas, Energía y Materiales, University of Oviedo, Oviedo, Asturias, Spain
| | | | - A. Ordóñez
- Escuela de Ingeniería de Minas, Energía y Materiales, University of Oviedo, Oviedo, Asturias, Spain
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3
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Aguilar A, Cobo M, Azkarate A, Calles A, Gonzalez-Cao M, Cantero A, Terrasa J, Álvarez R, Molina M, Rosell R. 79TiP Progress of a phase I trial (TOTEM) of repotrectinib in combination with osimertinib in advanced, metastatic EGFR mutant NSCLC. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00333-7] [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] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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4
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Solla P, Díaz R, Herrera J, Del Valle R, Moreno C, Almendarez M, López E, Álvarez R, Morís-de la Tassa C, Gutiérrez J. [Cognitive impairment in the elderly patient with symptomatic severe aortic stenosis. Therapeutic decisions and impact on one-year mortality]. Rev Neurol 2023; 76:127-135. [PMID: 36782348 PMCID: PMC10364070 DOI: 10.33588/rn.7604.2022300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
INTRODUCTION Interventional treatment of severe aortic stenosis includes valve replacement by surgery or transcatheter - transcatheter aortic valve implantation (TAVI). In order to make an adequate selection and to rule out patients with little/no therapeutic benefit, it is recommended to assess comorbidities, frailty and cognitive impairment. AIMS a) To determine the prevalence of cognitive impairment in older patients with severe aortic stenosis; b) to analyse its influence on decision-making (surgery, TAVI or conservative treatment); and c) to analyse its impact on mortality at one year. MATERIAL AND METHODS Prospective, longitudinal epidemiological study of patients aged 75 years and older with severe aortic stenosis treated by the Heart-Team. VARIABLES sociodemographic, clinical, cardiological, functional and mental variables; cognitive impairment assessed by applying the Mini-Mental State Examination (MMSE). RESULTS We included 300 patients in the study (83.99 ± 4.02 years old; 61.2%, women). Prevalence of cognitive impairment of 15.3%, which was associated with albumin level - odds ratio (OR): 0.082; p = 0.011 - and Barthel (OR: 0.962; p = 0.02) and Lawton (OR: 0.787; p = 0.025) index scores. Surgery was chosen in 24.7% of cases; TAVI in 63.3%; and conservative treatment in 12%. This decision was associated with the score on the Barthel (OR: 0.93; p = 0.012) and Lawton indices (OR: 0.678; p = 0.014), the Short Physical Performance Battery (OR: 0.75; p = 0.037) and the MMSE (OR: 0.691; p < 0.001). Mortality at one year was 14%, and higher in patients with MMSE scores <24 (23.5% vs. 12.8%; p = 0.094). CONCLUSIONS Cognitive impairment is a very common geriatric syndrome in older patients with severe aortic stenosis that is associated with functional disability in activities of daily living. Cognitive impairment has a high impact on decision-making and appears to be a variable associated with increased mortality.
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Affiliation(s)
- P Solla
- Hospital Monte Naranco, 33012 Oviedo, España.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, España
| | - R Díaz
- Hospital Universitario Central de Asturias, Oviedo, España.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, España
| | - J Herrera
- Hospital Monte Naranco, 33012 Oviedo, España
| | - R Del Valle
- Hospital Universitario Central de Asturias, Oviedo, España
| | - C Moreno
- Hospital Monte Naramco, Oviedo, España
| | - M Almendarez
- Hospital Universitario Central de Asturias, Oviedo, España.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, España
| | - E López
- Hospital Monte Naranco, 33012 Oviedo, España
| | - R Álvarez
- Hospital Universitario Central de Asturias, Oviedo, España.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, España
| | - C Morís-de la Tassa
- Hospital Universitario Central de Asturias, Oviedo, España.,Universidad de Oviedo, Oviedo, España.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, España
| | - J Gutiérrez
- Hospital Monte Naranco, 33012 Oviedo, España.,Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, España
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Peinado-Torrubia P, Álvarez R, Lucas M, Franco-Navarro JD, Durán-Gutiérrez FJ, Colmenero-Flores JM, Rosales MA. Nitrogen assimilation and photorespiration become more efficient under chloride nutrition as a beneficial macronutrient. Front Plant Sci 2023; 13:1058774. [PMID: 36704154 PMCID: PMC9871469 DOI: 10.3389/fpls.2022.1058774] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/09/2022] [Indexed: 06/18/2023]
Abstract
Chloride (Cl-) and nitrate ( NO 3 - ) are closely related anions involved in plant growth. Their similar physical and chemical properties make them to interact in cellular processes like electrical balance and osmoregulation. Since both anions share transport mechanisms, Cl- has been considered to antagonize NO 3 - uptake and accumulation in plants. However, we have recently demonstrated that Cl- provided at beneficial macronutrient levels improves nitrogen (N) use efficiency (NUE). Biochemical mechanisms by which beneficial Cl- nutrition improves NUE in plants are poorly understood. First, we determined that Cl- nutrition at beneficial macronutrient levels did not impair the NO 3 - uptake efficiency, maintaining similar NO 3 - content in the root and in the xylem sap. Second, leaf NO 3 - content was significantly reduced by the treatment of 6 mM Cl- in parallel with an increase in NO 3 - utilization and NUE. To verify whether Cl- nutrition reduces leaf NO 3 - accumulation by inducing its assimilation, we analysed the content of N forms and the activity of different enzymes and genes involved in N metabolism. Chloride supply increased transcript accumulation and activity of most enzymes involved in NO 3 - assimilation into amino acids, along with a greater accumulation of organic N (mostly proteins). A reduced glycine/serine ratio and a greater ammonium accumulation pointed to a higher activity of the photorespiration pathway in leaves of Cl--treated plants. Chloride, in turn, promoted higher transcript levels of genes encoding enzymes of the photorespiration pathway. Accordingly, microscopy observations suggested strong interactions between different cellular organelles involved in photorespiration. Therefore, in this work we demonstrate for the first time that the greater NO 3 - utilization and NUE induced by beneficial Cl- nutrition is mainly due to the stimulation of NO 3 - assimilation and photorespiration, possibly favouring the production of ammonia, reductants and intermediates that optimize C-N re-utilization and plant growth. This work demonstrates new Cl- functions and remarks on its relevance as a potential tool to manipulate NUE in plants.
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Affiliation(s)
- Procopio Peinado-Torrubia
- Plant Ion and Water Regulation Group, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Seville, Spain
| | - Rosario Álvarez
- Departamento de Biología Vegetal y Ecología, Facultad de Biología Universidad de Sevilla, Sevilla, Spain
| | - Marta Lucas
- Plant Ion and Water Regulation Group, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Seville, Spain
- Laboratory of Plant Molecular Ecophysiology, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Seville, Spain
| | - Juan D. Franco-Navarro
- Plant Ion and Water Regulation Group, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Seville, Spain
| | - Francisco J. Durán-Gutiérrez
- Plant Ion and Water Regulation Group, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Seville, Spain
| | - José M. Colmenero-Flores
- Plant Ion and Water Regulation Group, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Seville, Spain
- Laboratory of Plant Molecular Ecophysiology, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Seville, Spain
| | - Miguel A. Rosales
- Plant Ion and Water Regulation Group, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Seville, Spain
- Laboratory of Plant Molecular Ecophysiology, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS, CSIC), Seville, Spain
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6
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Alvarez Cifuentes G, Santiago A, Mendez L, Fueyo M, López Martínez E, Soria R, Martín López I, Durán N, Álvarez R, Lago C, Otero Gonzalez A, Diñeiro M, Capín R, Cadiñanos J, Cabanillas R. 87P ctDNA analysis as a prognostic factor for early-stage and oligometastatic patients treated with radiotherapy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.119] [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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7
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De Paepe JL, Aradvari Horvat SM, Álvarez R. Inclusion of soil organic carbon changes can reverse results of historical energy flux quantifications of Pampean agriculture. Sci Total Environ 2022; 835:155533. [PMID: 35489497 DOI: 10.1016/j.scitotenv.2022.155533] [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] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 06/14/2023]
Abstract
The questions that guided this work were: 1) How do energy inputs, outputs, and energy indices evolve during the last four decades along the rainfall gradient of the Pampas, 2) How does present agrochemical and fertilizer use in Argentina resemble, or differ, from other main grain producing regions with large no-till surfaces?, and 3) How do energy fluxes vary when soil organic carbon (SOC) changes during the last four decades are included? Energy balances (outputs - inputs), energy efficiencies (outputs/inputs) and energy intensities (inputs/yield) were calculated. Inputs comprised agrochemicals and fertilizers, machinery used for soil tillage and fuel use and gathered from different information sources. Outputs included yield of main crops from national statistics. Calculations were performed for four areas along a rainfall gradient during the 1970-2015 period. Energy coefficients were collected from literature. Soil organic carbon changes of the upper soil profile meter were available from a previous publication. Total input averages per area were low although increased 62% after four decades, from 6.6 GJ ha-1 in the past up to 10.5 GJ ha-1 at present with no marked differences between areas. Agrochemicals comprised 49% of total energy input, a very large proportion compared to other regions mainly related to the large surface under no-tillage while fertilizer rates were low. Average energy outputs increased 51% with time and all energy balances were positive. Energy efficiencies had an optimum during 1995 of 4.8 decreasing afterwards down to 3.7. Energy intensities decreased and at present 14% less input energy was needed per t DM yield produced. Two areas gained SOC and one lost large amounts. Inclusion of SOC losses in energy quantifications turned all energy indices to negative values therefore providing a real scenario of what happened with energy fluxes after four decades of agriculture which otherwise would be ignored.
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Affiliation(s)
- J L De Paepe
- Faculty of Agronomy, University of Buenos Aires, Av. San Martín 4453 (CP1417), Buenos Aires, Argentina; CONICET, Buenos Aires, Argentina.
| | - S M Aradvari Horvat
- Faculty of Agronomy, University of Buenos Aires, Av. San Martín 4453 (CP1417), Buenos Aires, Argentina.
| | - R Álvarez
- Faculty of Agronomy, University of Buenos Aires, Av. San Martín 4453 (CP1417), Buenos Aires, Argentina; CONICET, Buenos Aires, Argentina.
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8
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Gandullo J, Álvarez R, Feria AB, Monreal JA, Díaz I, Vidal J, Echevarría C. A conserved C-terminal peptide of sorghum phosphoenolpyruvate carboxylase promotes its proteolysis, which is prevented by Glc-6P or the phosphorylation state of the enzyme. Planta 2021; 254:43. [PMID: 34355288 PMCID: PMC8342391 DOI: 10.1007/s00425-021-03692-3] [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] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/28/2021] [Indexed: 06/13/2023]
Abstract
MAIN CONCLUSION A synthetic peptide from the C-terminal end of C4-phosphoenolpyruvate carboxylase is implicated in the proteolysis of the enzyme, and Glc-6P or phosphorylation of the enzyme modulate this effect. Phosphoenolpyruvate carboxylase (PEPC) is a cytosolic, homotetrameric enzyme that performs a variety of functions in plants. Among them, it is primarily responsible for CO2 fixation in the C4 photosynthesis pathway (C4-PEPC). Here we show that proteolysis of C4-PEPC by cathepsin proteases present in a semi-purified PEPC fraction was enhanced by the presence of a synthetic peptide containing the last 19 amino acids from the C-terminal end of the PEPC subunit (pC19). Threonine (Thr)944 and Thr948 in the peptide are important requirements for the pC19 effect. C4-PEPC proteolysis in the presence of pC19 was prevented by the PEPC allosteric effector glucose 6-phosphate (Glc-6P) and by phosphorylation of the enzyme. The role of these elements in the regulation of PEPC proteolysis is discussed in relation to the physiological context.
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Affiliation(s)
- Jacinto Gandullo
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Avenida Reina Mercedes nº 6, 41012, Seville, Spain
| | - Rosario Álvarez
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Avenida Reina Mercedes nº 6, 41012, Seville, Spain
| | - Ana-Belén Feria
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Avenida Reina Mercedes nº 6, 41012, Seville, Spain
| | - José-Antonio Monreal
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Avenida Reina Mercedes nº 6, 41012, Seville, Spain
| | - Isabel Díaz
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Campus de Montegancedo, Autovía M40 (km 38), Pozuelo de Alarcón, 28034, Madrid, Spain
| | - Jean Vidal
- Institut de Biotechnologie des Plantes, UMR8618, Bâtiment 630, Université de Paris-Sud 11, 91405, Orsay, Cedex, France
| | - Cristina Echevarría
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Avenida Reina Mercedes nº 6, 41012, Seville, Spain.
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9
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Garrido P, Hladun R, de Álava E, Álvarez R, Bautista F, López-Ríos F, Colomer R, Rojo F. Multidisciplinary consensus on optimising the detection of NTRK gene alterations in tumours. Clin Transl Oncol 2021; 23:1529-1541. [PMID: 33620682 PMCID: PMC8238709 DOI: 10.1007/s12094-021-02558-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/24/2021] [Indexed: 12/21/2022]
Abstract
The recent identification of rearrangements of neurotrophic tyrosine receptor kinase (NTRK) genes and the development of specific fusion protein inhibitors, such as larotrectinib and entrectinib, have revolutionised the diagnostic and clinical management of patients presenting with tumours with these alterations. Tumours that harbour NTRK fusions are found in both adults and children; and they are either rare tumours with common NTRK fusions that may be diagnostic, or more prevalent tumours with rare NTRK fusions. To assess currently available evidence on this matter, three key Spanish medical societies (the Spanish Society of Medical Oncology (SEOM), the Spanish Society of Pathological Anatomy (SEAP), and the Spanish Society of Paediatric Haematology and Oncology (SEHOP) have brought together a group of experts to develop a consensus document that includes guidelines on the diagnostic, clinical, and therapeutic aspects of NTRK-fusion tumours. This document also discusses the challenges related to the routine detection of these genetic alterations in a mostly public Health Care System.
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Affiliation(s)
- P. Garrido
- Sociedad Española de Oncología Médica (SEOM), Departamento de Oncología Médica, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, IRYCIS, CIBERONC, Madrid, Spain
| | - R. Hladun
- Sociedad Española de Hematología y Oncologías Pediátricas (SEHOP), Departamento de Oncología, Hematología y Trasplante de Progenitores Hematopoyéticos Pediátricos, Hospital Universitario Vall d’Hebron, Barcelona, Spain
| | - E. de Álava
- Sociedad Española de Anatomía Patológica (SEAP), Departamento de Citología e Histología Normal y Patológica, Hospital Universitario Virgen del Rocío, Instituto de Biomedicina de Sevilla (IBiS), CSIC, Facultad de Medicina, Universidad de Sevilla, CIBERONC, Sevilla, Spain
| | - R. Álvarez
- Sociedad Española de Oncología Médica (SEOM), Departamento de Oncología Médica, Hospital Universitario Gregorio Marañón. Instituto Investigación Sanitaria Gregorio Marañon (IISGM), Madrid, Spain
| | - F. Bautista
- Sociedad Española de Hematología y Oncologías Pediátricas (SEHOP), Oncología Pediátrica, Departamento de Hematología y Trasplante de Células Madre Hematopoyéticas, Hospital Universitario Infantil Niño Jesús, Madrid, Spain
| | - F. López-Ríos
- Sociedad Española de Anatomía Patológica (SEAP), Departamento de Patología, Laboratorio de Dianas Terapéuticas, Hospital Universitario HM Sanchinarro, CIBERONC, Madrid, Spain
| | - R. Colomer
- Sociedad Española de Oncología Médica (SEOM), Departamento de Oncología Médica, Hospital Universitario La Princesa, Universidad Autónoma de Madrid, Cátedra UAM-Fundación Instituto Roche de Medicina Personalizada de Precisión, Madrid, Spain
| | - F. Rojo
- Sociedad Española de Anatomía Patológica (SEAP), Departamento de Patología, IIS-Fundación Universitaria Jiménez Díaz, CIBERONC, Madrid, Spain
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10
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Álvarez R, Ortega-Fuentes C, Queraltó C, Inostroza O, Díaz-Yáñez F, González R, Calderón IL, Fuentes JA, Paredes-Sabja D, Gil F. Evaluation of functionality of type II toxin-antitoxin systems of Clostridioides difficile R20291. Microbiol Res 2020; 239:126539. [PMID: 32622285 DOI: 10.1016/j.micres.2020.126539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 03/09/2020] [Revised: 06/20/2020] [Accepted: 06/24/2020] [Indexed: 01/05/2023]
Abstract
Clostridioides difficile is a nosocomial, Gram-positive, strictly anaerobic, spore-forming pathogen capable of colonizing and proliferating in the human intestine. In bacteria, it has been shown that the Toxin-Antitoxin systems mediate the cellular response to external stress by initiating processes such as biofilm formation and programmed cell death. This work aims to evaluate the functionality of four type II TA modules of Clostridioides difficile R20291. We performed bioinformatic analysis to search for putative TA systems using the TADB platform. Then we performed a heterologous expression assay to evaluate the functionality of these systems. Our results showed that the MazEF and RelBE systems were functional, suggesting that their corresponding toxins possess an endoribonuclease activity. In conclusion, MazEF and RelBE systems of C. difficile R20291 are functional in a heterologous expression system.
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Affiliation(s)
- R Álvarez
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - C Ortega-Fuentes
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - C Queraltó
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - O Inostroza
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - F Díaz-Yáñez
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile; Millennium Nucleus in the Biology of Intestinal Microbiota, Santiago, Chile
| | - R González
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - I L Calderón
- Laboratorio de RNAs bacterianos, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - J A Fuentes
- Laboratorio de Genética y Patogénesis Bacteriana, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - D Paredes-Sabja
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile; Millennium Nucleus in the Biology of Intestinal Microbiota, Santiago, Chile
| | - F Gil
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile; Millennium Nucleus in the Biology of Intestinal Microbiota, Santiago, Chile.
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Gallego-Tévar B, Peinado-Torrubia P, Álvarez R, Grewell BJ, Castillo JM. From physiology to salt marsh management challenges with sea level rise: the case of native Spartina foliosa, invasive S. densiflora and their hybrid. Conserv Physiol 2020; 8:coaa053. [PMID: 32685163 PMCID: PMC7327128 DOI: 10.1093/conphys/coaa053] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 05/12/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
Sea level rise (SLR) imposes increasing salinity and inundation stresses in salt marshes which simultaneously face invasions by exotic plant species. We aimed to improve and apply knowledge on the ecophysiological responses of halophytes to SLR to conservation management of salt marshes. In a mesocosm experiment, we measured and compared phosphoenolpyruvate carboxylase (PEPC) activity and related functional traits of the California-native Spartina foliosa, invasive S. densiflora and their hybrid S. densiflora × foliosa in response to increasing levels of salinity and inundation. S. foliosa was moderately sensitive to salinity, showing a 57% reduction in PEPC specific activity from freshwater to hypersalinity. This native species compensated for the reduction of PEPC activity with increased salinity through 80% higher enzyme activation by phosphorylation. PEPC functional trait responses of S. foliosa were mostly independent of inundation depth. In view of these results, managers should conserve undeveloped lands for accommodation space above current high tide lines to facilitate colonization of stress-tolerant S. foliosa. Our results on functional responses of PEPC traits recorded high sensitivity to salinity for S. densiflora. This was reflected by 65% lower PEPC specific activity together with increasing accumulation of free proline (+96%) and total proteins (+23%) with elevated salinity. These results suggest prioritized eradication of S. densiflora populations in brackish habitats. Measured PEPC responses support the high stress tolerance of the S. densiflora × foliosa hybrid. PEPC traits for the hybrid were mostly independent of salinity and inundation. The hybrid showed higher PEPC-specific activity than S. foliosa (+70%) and S. densiflora (+15%) in freshwater under intermediate inundation. Results suggest that eradication of the hybrid should be the highest management priority. Our study shows that the responses of key functional physiological traits to environmental stresses serve as biological indicators that can guide ecosystem management practices in a scenario of climate change.
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Affiliation(s)
- Blanca Gallego-Tévar
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080 Sevilla, Spain
| | | | - Rosario Álvarez
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080 Sevilla, Spain
| | - Brenda J Grewell
- USDA-ARS, Invasive Species and Pollinator Health Research Unit, Department of Plant Sciences MS-4, 1 Shields Avenue, University of California, Davis, CA 95616, USA
| | - Jesús M Castillo
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080 Sevilla, Spain
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Rosales MA, Franco-Navarro JD, Peinado-Torrubia P, Díaz-Rueda P, Álvarez R, Colmenero-Flores JM. Chloride Improves Nitrate Utilization and NUE in Plants. Front Plant Sci 2020; 11:442. [PMID: 32528483 PMCID: PMC7264407 DOI: 10.3389/fpls.2020.00442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/25/2020] [Indexed: 05/14/2023]
Abstract
Chloride (Cl-) has traditionally been considered harmful to agriculture because of its toxic effects in saline soils and its antagonistic interaction with nitrate (NO3 -), which impairs NO3 - nutrition. It has been largely believed that Cl- antagonizes NO3 - uptake and accumulation in higher plants, reducing crop yield. However, we have recently uncovered that Cl- has new beneficial macronutrient, functions that improve plant growth, tissue water balance, plant water relations, photosynthetic performance, and water-use efficiency. The increased plant biomass indicates in turn that Cl- may also improve nitrogen use efficiency (NUE). Considering that N availability is a bottleneck for the plant growth, the excessive NO3 - fertilization frequently used in agriculture becomes a major environmental concern worldwide, causing excessive leaf NO3 - accumulation in crops like vegetables and, consequently, a potential risk to human health. New farming practices aimed to enhance plant NUE by reducing NO3 - fertilization should promote a healthier and more sustainable agriculture. Given the strong interaction between Cl- and NO3 - homeostasis in plants, we have verified if indeed Cl- affects NO3 - accumulation and NUE in plants. For the first time to our knowledge, we provide a direct demonstration which shows that Cl-, contrary to impairing of NO3 - nutrition, facilitates NO3 - utilization and improves NUE in plants. This is largely due to Cl- improvement of the N-NO3 - utilization efficiency (NUTE), having little or moderate effect on N-NO3 - uptake efficiency (NUPE) when NO3 - is used as the sole N source. Clear positive correlations between leaf Cl- content vs. NUE/NUTE or plant growth have been established at both intra- and interspecies levels. Optimal NO3 - vs. Cl- ratios become a useful tool to increase crop yield and quality, agricultural sustainability and reducing the negative ecological impact of NO3 - on the environment and on human health.
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Affiliation(s)
- Miguel A. Rosales
- Grupo Regulación Iónica e Hídrica en Plantas, Instituto de Recursos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (CSIC), Seville, Spain
- Laboratorio Interdepartamental de Ecofisiología Molecular de Plantas, Instituto de Recursos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (CSIC), Seville, Spain
| | - Juan D. Franco-Navarro
- Grupo Regulación Iónica e Hídrica en Plantas, Instituto de Recursos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (CSIC), Seville, Spain
- BioScripts – Centro de Investigación y Desarrollo de Recursos Científicos, Seville, Spain
| | - Procopio Peinado-Torrubia
- Grupo Regulación Iónica e Hídrica en Plantas, Instituto de Recursos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (CSIC), Seville, Spain
| | - Pablo Díaz-Rueda
- Grupo Regulación Iónica e Hídrica en Plantas, Instituto de Recursos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (CSIC), Seville, Spain
| | - Rosario Álvarez
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - José M. Colmenero-Flores
- Grupo Regulación Iónica e Hídrica en Plantas, Instituto de Recursos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (CSIC), Seville, Spain
- Laboratorio Interdepartamental de Ecofisiología Molecular de Plantas, Instituto de Recursos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas (CSIC), Seville, Spain
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Gallego-Tévar B, Peinado-Torrubia P, Álvarez R, Gandullo J, Grewell BJ, Figueroa E, Castillo JM. Changes to the functional traits of phosphoenolpyruvate carboxylase following hybridization in C-4 halophytes. Physiol Plant 2020; 169:83-98. [PMID: 31782807 DOI: 10.1111/ppl.13053] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 11/25/2019] [Indexed: 06/10/2023]
Abstract
Hybridization is a relevant evolutionary mechanism linked to the invasiveness of plant species, but little is known about its effect on enzymatic activities in response to stress. We analyzed the effects of salinity on key mechanistic traits of phosphoenolpyruvate carboxylase (PEPC) enzyme for two hybrid taxa derived from native Spartina maritima (Curtis) Fernald and invasive Spartina densiflora Brongn. in comparison with their parental species. Parental species showed contrasted strategies at the PEPC level to cope with salinity. Spartina maritima showed its physiological optimum at 10 to 40 ppt salinity, with high PEPC activity (per unit leaf soluble protein), in contrast to the lower salinity optimum of 0.5 and 10 ppt for S. densiflora, where highest levels of PEPC apparent specific activity coincided with high light-induced activation of PEPC. Both hybrids showed constant PEPC apparent specific activity from fresh water to hypersalinity and exhibited higher net photosynthesis rates in fresh water than their parents. Spartina maritima × densiflora presented three transgressive PEPC-related traits, being the only taxon able to increase its PEPC activation in darkness at high salinity. Spartina densiflora × maritima showed most PEPC-related traits intermediate between its parents. Inheritance types operating differently in reciprocal hybrids determine key functional traits conditioning their ecological performance.
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Affiliation(s)
- Blanca Gallego-Tévar
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080, Sevilla, Spain
| | | | - Rosario Álvarez
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080, Sevilla, Spain
| | - Jacinto Gandullo
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080, Sevilla, Spain
| | - Brenda J Grewell
- USDA-ARS, Invasive Species and Pollinator Health Research Unit, Department of Plant Sciences MS-4, University of California, Davis, CA, USA
| | - Enrique Figueroa
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080, Sevilla, Spain
| | - Jesús M Castillo
- Departamento de Biología Vegetal y Ecología, Universidad de Sevilla, Ap 1095, 41080, Sevilla, Spain
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De Miguel E, Barrio-Parra F, Izquierdo-Díaz M, Fernández J, García-González JE, Álvarez R. Applicability and limitations of the radon-deficit technique for the preliminary assessment of sites contaminated with complex mixtures of organic chemicals: A blind field-test. Environ Int 2020; 138:105591. [PMID: 32120060 DOI: 10.1016/j.envint.2020.105591] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/31/2020] [Accepted: 02/17/2020] [Indexed: 06/10/2023]
Abstract
A blind field test with 136 independent measurements of radon (222Rn) in soil air retrieved from a depth of 0.8 m in a decommissioned lindane (γ-hexachlorocyclohexane) production plant was undertaken to evaluate the performance of the 222Rn-deficit technique as a screening methodology for the location and delineation of subsurface accumulations of complex mixtures of organic contaminants. Maps of 222Rn iso-concentrations were drawn and interpreted before direct analytical information regarding concentrations of hexachlorocyclohexanes, chlorobenzenes and BTEX compounds in soil, groundwater and soil air were disclosed to the authors. The location and extension of pollution hot spots inferred from the 222Rn campaigns agrees remarkably well with the analytical data obtained from the intrusive sampling campaigns and with the location of contaminant source zones (chemical reactor and waste-storage area) and geological sinks of those contaminants (paleochannel). Two main limitations to the applicability of the 222Rn-deficit technique were identified and assessed: The statistically significant variation of 222Rn concentrations with diurnal changes of ground-level air temperature and the maximum depth of investigation in the absence of significant advective and co-advective transport of radon. If the influence of those two factors is accounted for and/or minimized (by averaging replicated measurements during the workday and in different days), the 222Rn-deficit technique has the potential to be an efficient technique which delivers information in quasi-real time, with a much higher spatial density than that of intrusive techniques, at a much faster rate and at a significantly lower cost. MAIN FINDINGS: The 222Rn-deficit technique is an effective tool for real-time site characterization only limited by diffusion length of radon and diurnal temperature variations.
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Affiliation(s)
- E De Miguel
- Prospecting & Environment Laboratory (PROMEDIAM), Universidad Politécnica de Madrid, Spain
| | - F Barrio-Parra
- Prospecting & Environment Laboratory (PROMEDIAM), Universidad Politécnica de Madrid, Spain.
| | - M Izquierdo-Díaz
- Prospecting & Environment Laboratory (PROMEDIAM), Universidad Politécnica de Madrid, Spain
| | - J Fernández
- Departamento de Agricultura, Ganadería y Medio Ambiente, Unidad para la descontaminación integral del Lindano, Gobierno de Aragón, Spain
| | - J E García-González
- Prospecting & Environment Laboratory (PROMEDIAM), Universidad Politécnica de Madrid, Spain
| | - R Álvarez
- Department of Mining Exploitation and Prospecting, University of Oviedo, Spain
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15
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Chen-Zhao X, Hernando O, López M, Sánchez E, Montero A, García-Aranda M, Ciérvide R, Valero J, Alonso R, Cárdenas-Rebollo JM, Vicente E, Quijano Y, Cubillo A, Álvarez R, Prados S, Plaza C, García J, Zucca D, Fernández-Letón P, Rubio C. A prospective observational study of the clinical and pathological impact of stereotactic body radiotherapy (SBRT) as a neoadjuvant strategy of chemoradiation in pancreatic cancer. Clin Transl Oncol 2020; 22:1499-1505. [PMID: 31974820 DOI: 10.1007/s12094-020-02287-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 08/04/2019] [Accepted: 01/01/2020] [Indexed: 01/30/2023]
Abstract
PURPOSE/OBJECTIVE(S) To improve the curative resection rates and prognoses, a variety of neoadjuvant (NA) strategies have been explored in PDAC. In our institution, non-metastatic PDACs have been treated with a NA intent with induction multiagent chemotherapy and SBRT. The primary endpoint was to increase R0 resection rate. The secondary endpoints were the analysis of the clinical tolerance, the pathological response, the local control (LC) and the OS. MATERIALS/METHODS All consecutive patients with non-metastatic PDAC underwent SBRT as part of the NA strategy were included. A total dose of 40-62 Gy were delivered in 5-10 fractions. Surgery was performed after SBRT and restaging. RESULTS Since February 2014 to December 2018, 45 patients were enrolled. Thirty-two patients underwent surgery (71.1%), 10 out of 15 were initially unresectable disease patients (66.75%). R0 resection rate was 93% (30 patients) and pN0 status was achieved in 20 patients (60.6%). Tumour regression grade (TRG): 12 patients with complete response or marked response (TRG 0-1: 37.5%), 16 patients with moderate response (TRG 2: 50%) and four patients with poor response (TRG 3: 12.5%). The median follow-up was 16.2 m (range 6.6-59.6 m) since diagnosis. The LC rate achieved was very high (95.5%). Actuarial 12 and 24 m OS was 67.4% and 35.9% respectively. No grade 3 or higher toxicity related to SBRT was observed. CONCLUSION The results are encouraging, suggesting that SBRT has a significant role in the management of these patients and further studies will be necessary to prove these findings.
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Affiliation(s)
- X Chen-Zhao
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain.
| | - O Hernando
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - M López
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - E Sánchez
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - A Montero
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - M García-Aranda
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - R Ciérvide
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - J Valero
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - R Alonso
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - J M Cárdenas-Rebollo
- Department of Applied Mathematics and Statistics, CEU San Pablo University, Madrid, Spain
| | - E Vicente
- General and Gastrointestinal Surgery, University Hospital HM Sanchinarro, Madrid, Spain
| | - Y Quijano
- General and Gastrointestinal Surgery, University Hospital HM Sanchinarro, Madrid, Spain
| | - A Cubillo
- Medical Oncology, University Hospital HM Sanchinarro, Madrid, Spain
| | - R Álvarez
- Medical Oncology, University Hospital HM Sanchinarro, Madrid, Spain
| | - S Prados
- Gastroenterology, University Hospital HM Sanchinarro, Madrid, Spain
| | - C Plaza
- Anatomical Pathology, University Hospital HM Sanchinarro, Madrid, Spain
| | - J García
- Medical Physics, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - D Zucca
- Medical Physics, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - P Fernández-Letón
- Medical Physics, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
| | - C Rubio
- Radiation Oncology, University Hospital HM Sanchinarro-Puerta del Sur, Madrid, Spain
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16
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Franco-Navarro JD, Rosales MA, Cubero-Font P, Calvo P, Álvarez R, Diaz-Espejo A, Colmenero-Flores JM. Chloride as a macronutrient increases water-use efficiency by anatomically driven reduced stomatal conductance and increased mesophyll diffusion to CO 2. Plant J 2019; 99:815-831. [PMID: 31148340 DOI: 10.1111/tpj.14423] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 05/17/2019] [Accepted: 05/22/2019] [Indexed: 05/27/2023]
Abstract
Chloride (Cl- ) has been recently described as a beneficial macronutrient, playing specific roles in promoting plant growth and water-use efficiency (WUE). However, it is still unclear how Cl- could be beneficial, especially in comparison with nitrate (NO3- ), an essential source of nitrogen that shares with Cl- similar physical and osmotic properties, as well as common transport mechanisms. In tobacco plants, macronutrient levels of Cl- specifically reduce stomatal conductance (gs ) without a concomitant reduction in the net photosynthesis rate (AN ). As stomata-mediated water loss through transpiration is inherent in the need of C3 plants to capture CO2 , simultaneous increase in photosynthesis and WUE is of great relevance to achieve a sustainable increase in C3 crop productivity. Our results showed that Cl- -mediated stimulation of larger leaf cells leads to a reduction in stomatal density, which in turn reduces gs and water consumption. Conversely, Cl- improves mesophyll diffusion conductance to CO2 (gm ) and photosynthetic performance due to a higher surface area of chloroplasts exposed to the intercellular airspace of mesophyll cells, possibly as a consequence of the stimulation of chloroplast biogenesis. A key finding of this study is the simultaneous improvement of AN and WUE due to macronutrient Cl- nutrition. This work identifies relevant and specific functions in which Cl- participates as a beneficial macronutrient for higher plants, uncovering a sustainable approach to improve crop yield.
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Affiliation(s)
- Juan D Franco-Navarro
- Instituto de Recursos Naturales y Agrobiología, CSIC, Avda Reina Mercedes 10, 41012, Sevilla, Spain
| | - Miguel A Rosales
- Instituto de Recursos Naturales y Agrobiología, CSIC, Avda Reina Mercedes 10, 41012, Sevilla, Spain
| | - Paloma Cubero-Font
- Instituto de Recursos Naturales y Agrobiología, CSIC, Avda Reina Mercedes 10, 41012, Sevilla, Spain
- Biochimie et Physiologie Moléculaire des Plantes (BPMP), Univ. Montpellier, CNRS, INRA, SupAgro, 2 Place P. Viala, Montpellier, 34060, France
| | - Purificación Calvo
- Departamento de Microbiología, Facultad de Biología, Universidad de Sevilla, Avda Reina Mercedes 6, 41012, Sevilla, Spain
| | - Rosario Álvarez
- Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, Avda. Reina Mercedes 6, 41012, Sevilla, Spain
| | - Antonio Diaz-Espejo
- Instituto de Recursos Naturales y Agrobiología, CSIC, Avda Reina Mercedes 10, 41012, Sevilla, Spain
| | - José M Colmenero-Flores
- Instituto de Recursos Naturales y Agrobiología, CSIC, Avda Reina Mercedes 10, 41012, Sevilla, Spain
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Ceniceros L, Álvarez R, Muñoz C, Sanz-García E, Ugidos L, Rodriguez-Pascual J, Hernandez S, Gomez P, Garcia-Rico E, Cubillo A. Clinical and molecular characteristics of biliary tract carcinoma using next-generation sequencing. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.206] [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: 11/14/2022] Open
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18
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Aparicio J, Virgili A, Capdevila J, Muñoz Boza F, Álvarez R, Bosch C, Cámara J, Fernandez-Martos C, Fernandez-Plana J, Gallego J, Gallego R, Hernández-Yagüe X, Macías Declara I, Rodríguez-Salas N, Vera R, Taberner M, Maurel J. Randomized phase II clinical trial to evaluate the efficacy of second-line FOLFIRI-panitumumab in patients with RAS wild-type metastatic colorectal cancer who have received FOLFOX-panitumumab in first-line (BEYOND). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.190] [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: 11/14/2022] Open
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19
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Gandullo J, Monreal JA, Álvarez R, Díaz I, García-Mauriño S, Echevarría C. Anionic Phospholipids Induce Conformational Changes in Phosphoenolpyruvate Carboxylase to Increase Sensitivity to Cathepsin Proteases. Front Plant Sci 2019; 10:582. [PMID: 31143196 PMCID: PMC6521631 DOI: 10.3389/fpls.2019.00582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 04/18/2019] [Indexed: 06/09/2023]
Abstract
Phosphoenolpyruvate carboxylase (PEPC) is a cytosolic, homotetrameric enzyme that serves a variety of functions in plants, acting as the primary form of CO2 fixation in the C4 photosynthesis pathway (C4-PEPC). In a previous work we have shown that C4-PEPC bind anionic phospholipids, resulting in PEPC inactivation. Also, we showed that PEPC can associate with membranes and to be partially proteolyzed. However, the mechanism controlling this remains unknown. Using semi purified-PEPC from sorghum leaf and a panel of PEPC-specific antibodies, we analyzed the conformational changes in PEPC induced by anionic phospholipids to cause the inactivation of the enzyme. Conformational changes observed involved the exposure of the C-terminus of PEPC from the native, active enzyme conformation. Investigation of the protease activity associated with PEPC demonstrated that cysteine proteases co-purify with the enzyme, with protease-specific substrates revealing cathepsin B and L as the major protease species present. The anionic phospholipid-induced C-terminal exposed conformation of PEPC appeared highly sensitive to the identified cathepsin protease activity and showed initial proteolysis of the enzyme beginning at the N-terminus. Taken together, these data provide the first evidence that anionic phospholipids promote not only the inactivation of the PEPC enzyme, but also its proteolysis.
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Affiliation(s)
- Jacinto Gandullo
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - José-Antonio Monreal
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - Rosario Álvarez
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - Isabel Díaz
- Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid, Campus de Montegancedo, Pozuelo de Alarcón, Madrid, Spain
| | - Sofía García-Mauriño
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Seville, Spain
| | - Cristina Echevarría
- Departamento de Biología Vegetal, Facultad de Biología, Universidad de Sevilla, Seville, Spain
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Calles A, Aguado G, Sandoval C, Álvarez R. The role of immunotherapy in small cell lung cancer. Clin Transl Oncol 2019; 21:961-976. [DOI: 10.1007/s12094-018-02011-9] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 12/07/2018] [Indexed: 12/31/2022]
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Mateo M, Álvarez R, Cobo C, Pallas JR, López AM, Gaite L. Telemedicine: contributions, difficulties and key factors for implementation in the prison setting. Rev esp sanid penit 2019. [DOI: 10.4321/s1575-06202019000200005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Mateo M, Álvarez R, Cobo C, Pallas JR, López AM, Gaite L. Telemedicine: contributions, difficulties and key factors for implementation in the prison setting. Rev Esp Sanid Penit 2019; 21:95-105. [PMID: 31642860 PMCID: PMC6813662] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 04/15/2019] [Indexed: 11/12/2022]
Abstract
Information and communication technologies are transforming the way we understand health, via a hyper-connected world in which patients, professionals and society take on new challenges and roles. This change is creating an ecosystem called connected health, in which telemedicine acquires special importance when distance (not only geographical), is a critical factor. It can respond to financial, social or safety needs or questions of dignity, as is the case with prisoners when they are transferred handcuffed and under custody to hospitals. Bringing health services closer to patients who cannot autonomously travel contributes towards humanising healthcare. Tele-consultations, long-distance encounters between patients and health professionals, reduce the direct and social costs inherent to habitual clinical practice and are very highly valued by patients in prison. Despite its potential benefits in the prison setting, the implementation of telemedicine in Spain continues to be scarce and irregular, which, amongst other things, is due to a lack of awareness of this healthcare practice, the severe shortage of resources currently endemic to the prison health service system and the lack of interoperability solutions for clinical information between the healthcare administration and the prison health services, which unfortunately continue to depend on an organisation outside the healthcare ambit (the Ministry of Home Affairs), despite the legal provisions requiring them to be fully integrated into regional health services. The SARA (Administration Applications and Networks Systems) Network and the Reúnete© Service offer solid, secure, free technology is available to all prisons, to set in motion telemedicine programs at a nationwide level.
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Affiliation(s)
- M Mateo
- Health Centre of “José Hierro” Social Integration Unit. Santander
| | - R Álvarez
- Health Centre of “José Hierro” Social Integration Unit. Santander
| | - C Cobo
- El Dueso Prison Health Centre. Santoña. Cantabria
| | - J R Pallas
- El Dueso Prison Health Centre. Santoña. Cantabria
| | - A M López
- El Dueso Prison Health Centre. Santoña. Cantabria
| | - L Gaite
- Evaluation Unit. Psychiatry Service. Marqués de Valdecilla University Hospital. CIBERSAM
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23
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Álvarez R, Inostroza O, Garavaglia M, Minton NP, Paredes-Sabja D, Gil F. Effect of antibiotic treatment on the formation of non-spore Clostridium difficile persister-like cells. J Antimicrob Chemother 2018; 73:2396-2399. [PMID: 29757406 DOI: 10.1093/jac/dky186] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 04/19/2018] [Indexed: 11/13/2022] Open
Abstract
Background The spore is the virulence factor identified to be involved in the recurrence of the disease caused by Clostridium difficile. Objectives To demonstrate that lethal antibiotic concentrations induce the appearance of C. difficile persister-like non-spore cells. Methods C. difficile and derivative spo0A mutant strains were tested for their susceptibility to antibiotics, as determined using an agar dilution method. Persister-cell generation was determined for all strains using up to 10 × the MIC of every antibiotic for up to 6 days. Results Using up to 10 × the MIC of every antibiotic, we were able to induce the appearance of persister-like behaviour since biphasic killing curves could be observed in response to treatment antibiotics. Conclusions To the best of our knowledge, this work provides, for the first time, experimental evidence of the appearance of C. difficile persister-like cells, opening a new research avenue in the pathogenesis of this nosocomial pathogen.
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Affiliation(s)
- R Álvarez
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
| | - O Inostroza
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
| | - M Garavaglia
- Clostridia Research Group, BBSRC/EPSRC Synthetic Research Centre (SBRC), School of Life Sciences, University of Nottingham, Nottingham, UK
| | - N P Minton
- Clostridia Research Group, BBSRC/EPSRC Synthetic Research Centre (SBRC), School of Life Sciences, University of Nottingham, Nottingham, UK.,National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and University of Nottingham, University of Nottingham, Nottingham, UK
| | - D Paredes-Sabja
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
| | - F Gil
- Microbiota-Host Interactions and Clostridia Research Group, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas, Universidad Andres Bello, Santiago, Chile
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24
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Macarulla T, Carrato A, Díaz R, García A, Laquente B, Sastre J, Álvarez R, Muñoz A, Hidalgo M. Management and supportive treatment of frail patients with metastatic pancreatic cancer. J Geriatr Oncol 2018; 10:398-404. [PMID: 30005980 DOI: 10.1016/j.jgo.2018.06.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 02/06/2018] [Revised: 05/03/2018] [Accepted: 06/18/2018] [Indexed: 12/18/2022]
Abstract
Data regarding management of frail patients with pancreatic ductal adenocarcinoma practice is currently very scarce. Randomized clinical trials usually exclude these subgroup of patients and the majority of the publications only consider chronological age and ECOG performance status for their classification. Therefore, the current available data do not reflect daily clinical practice. Only data from a phase two study (FRAGANCE study), designed to select a tolerable dose-schedule of nab-placitaxel + gemcitabine (Phase one) and to evaluate the efficacy of the selected regimen (Phase two) in patients with ECOG-2 and previously untreated advanced PDAC, are currently available. Management of these particular patients is exceedingly complex and requires collaboration of multidisciplinary teams and intensive support treatment. This article reviews the literature available regarding the management of the so-called frail patients and provide guidance for chemotherapy as well as supportive care treatments.
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Affiliation(s)
- T Macarulla
- Dpt. Medical Oncology, Hospital Vall d'Hebrón, Barcelona, Spain.
| | - A Carrato
- Dpt. Medical Oncology, Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - R Díaz
- Dpt. Medical Oncology, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - A García
- Dpt. Medical Oncology, Instituto Catalán de Oncología, de Girona, Spain
| | - B Laquente
- Dpt. Medical Oncology, Instituto Catalán de Oncología, L'Hospitalet de Llobregat, Barcelona, Spain
| | - J Sastre
- Dpt. Medical Oncology, Hospital Clínico Universitario San Carlos, Spain
| | - R Álvarez
- Dpt. Medical Oncology, Centro Integral Oncológico Clara Campal, Hospital Universitario Sanchinarro, Madrid, Spain
| | - A Muñoz
- Dpt. Medical Oncology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - M Hidalgo
- Dpt. Medical Oncology, Beth Israel Deaconess Medical Center, Boston, USA
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25
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Macchi FR, Peralta JR, Valiente OL, Álvarez R. SUPPLEMENTATION EFFECT OF CORN, AND BALANCED A PROTEIN MINERAL SALT ON WEIGHT GAIN IN EVERYDAY IN STEERS FED ON CULTIVATED PASTURES (Brachiaria brizantha cv Marandú and cv Mg4). Compend cienc vet 2018. [DOI: 10.18004/compend.cienc.vet.2018.08.01.22-25] [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: 10/28/2022] Open
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26
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Martinez JJI, Moreno-González V, Jonas-Levi A, Álvarez R. Quantitative differences detected in the histology of galls induced by the same aphid species in different varieties of the same host. Plant Biol (Stuttg) 2018; 20:516-524. [PMID: 29424091 DOI: 10.1111/plb.12705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 02/01/2018] [Indexed: 06/08/2023]
Abstract
Plant galls are abnormal growths caused by an inducer that determines their morphology and anatomy. We qualitatively and quantitatively compared the histological anatomy of five aphid species (Paracletus cimiciformis, Forda marginata, Forda formicaria, Baizongia pistaciae and Geoica wertheimae) that induce galls in Pistacia terebinthus shrubs growing in Israel. We also quantitatively compared these galls to those that the aphids create on the same host in Spain. Histological study was conducted following methods described previously by the authors. Quantitative differences among the galls were found in five of 12 common anatomical traits: gall thickness, stomatal number in the epidermis-air, size of vascular bundles, distance of phloem ducts from the lumen and number of intraphloematic schizogenous ducts. Other structures were particular to one or some species: number of cracks in the epidermis-lumen, a sclereid layer, trichomes and microcrystal inclusions. Fisher's tests of combined probabilities showed that the galls induced in Israel were statistically different from those in Spain. In particular, the number of intraphloematic schizogenous ducts was higher in the galls induced in P. terebinthus in Israel. Such differences were also found in other traits related to defence of the gall inhabitant. In conclusion, while the gall shape and size are determined mainly by the cecidogenic insect, it seems that the host plant also plays an important role in determining the number/size of quantitative traits, in this case mainly protective structures.
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Affiliation(s)
- J-J I Martinez
- Department of Animal Sciences, Faculty of Sciences and Technology, Tel-Hai Academic College, Upper Galilee, Israel
- Lab. of Animal Ecology and Biodiversity, MIGAL - Galilee Research Center, Kiryat Shmona, Israel
| | - V Moreno-González
- Departamento de Biodiversidad y Gestión Ambiental - Área de Zoología, Universidad de León, León, Spain
| | - A Jonas-Levi
- Department of Food Sciences, Faculty of Sciences and Technology, Tel-Hai Academic College, Upper Galilee, Israel
| | - R Álvarez
- Departamento de Biología Molecular-Área de Biología Celular, Universidad de León, León, Spain
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27
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Baz DV, Lario AP, Bueno MM, Sureda BM, Reguard N, Álvarez R, Molla AI, Juan O, Marquez G, Pulla MP. 156P ASTRIS, a real-world study with osimertinib in patients with non-small cell lung cancer (NSCLC) EGFR T790M mutated: Characteristics and diagnostic methods used for patients included in Spain. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30430-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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28
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Barrio-Parra F, Elío J, De Miguel E, García-González JE, Izquierdo M, Álvarez R. Environmental risk assessment of cobalt and manganese from industrial sources in an estuarine system. Environ Geochem Health 2018; 40:737-748. [PMID: 28861663 DOI: 10.1007/s10653-017-0020-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 08/22/2017] [Indexed: 05/18/2023]
Abstract
A total of 74 samples of soil, sediment, industrial sludge, and surface water were collected in a Mediterranean estuarine system in order to assess the potential ecological impact of elevated concentrations of Co and Mn associated with a Terephthalic (PTA) and Isophthalic (PIPA) acids production plant. Samples were analyzed for elemental composition (37 elements), pH, redox potential, organic carbon, and CaCO3 content, and a group of 16 selected samples were additionally subjected to a Tessier sequential extraction. Co and Mn soil concentrations were significantly higher inside the industrial facility and around its perimeter than in background samples, and maximum dissolved Co and Mn concentrations were found in a creek near the plant's discharge point, reaching values 17,700 and 156 times higher than their respective background concentrations. The ecological risk was evaluated as a function of Co and Mn fractionation and bioavailability which were controlled by the environmental conditions generated by the advance of seawater into the estuarine system during high tide. Co appeared to precipitate near the river mouth due to the pH increase produced by the influence of seawater intrusion, reaching hazardous concentrations in sediments. In terms of their bioavailability and the corresponding risk assessment code, both Co and Mn present sediment concentrations that result in medium to high ecological risk whereas water concentrations of both elements reach values that more than double their corresponding Secondary Acute Values.
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Affiliation(s)
- F Barrio-Parra
- Environmental Geochemistry Research and Engineering Laboratory, Universidad Politecnica de Madrid, Madrid, Spain.
| | - J Elío
- Environmental Geochemistry Research and Engineering Laboratory, Universidad Politecnica de Madrid, Madrid, Spain
- Trinity College Dublin, Dublin, Ireland
| | - E De Miguel
- Environmental Geochemistry Research and Engineering Laboratory, Universidad Politecnica de Madrid, Madrid, Spain
| | - J E García-González
- Environmental Geochemistry Research and Engineering Laboratory, Universidad Politecnica de Madrid, Madrid, Spain
| | - M Izquierdo
- Environmental Geochemistry Research and Engineering Laboratory, Universidad Politecnica de Madrid, Madrid, Spain
| | - R Álvarez
- Dep. Explotacion y Prospeccion de Minas, University of Oviedo, Oviedo, Asturias, Spain
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29
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Armentia A, Martín-Armentia S, Martín-Armentia B, Santos-Fernández J, Álvarez R, Madrigal B, Fernández-González D, Gayoso S, Gayoso MJ. Is eosinophilic esophagitis an equivalent of pollen allergic asthma? Analysis of biopsies and therapy guided by component resolved diagnosis. Allergol Immunopathol (Madr) 2018; 46:181-189. [PMID: 29338961 DOI: 10.1016/j.aller.2017.11.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 10/13/2017] [Accepted: 11/21/2017] [Indexed: 01/27/2023]
Abstract
BACKGROUND Eosinophilic esophagitis (EoE) is characterized by esophageal dysfunction and, histologically, by eosinophilic inflammation. There is not a clear etiologic treatment. Biopsies analysis using plant histology methods may show callose and pollen tubes in the esophageal mucosa. Component-resolved diagnosis (CRD) with microarrays could detect possible allergens involved and indicate an elimination diet and allergen immunotherapy (AIT). METHODS One hundred and twenty-nine patients with EoE were tested for environmental and food allergens. CRD, histological and botanical analysis were performed. Clinical scores and endoscopic biopsy were performed every six months for three years. Fifty healthy patients, 50 asthmatics due to pollen, and 53 celiac disease patients were included as comparison groups. CRD-directed AIT was administered in 91 EoE patients and elimination diet in 140 patients (87 EoE and all 53 CD patients). RESULTS CRD detected allergen hypersensitivity in 87.6% of patients with EoE. The predominant allergens were grass group 1 (55%), lipid transfer proteins (LTP) of peach and mugwort, hazelnuts and walnuts. Callose from pollen tubes was found in 65.6% of biopsies. After CRD-guided elimination diet and/or AIT, 101 (78.3%) EoE patients showed significant clinical improvement (p<0.017) and 97 (75.2%) were discharged (negative biopsy, no symptoms, no medication) without relapse. AIT-treated patients had better outcomes (odds ratio 177.3, 95% CI 16.2-1939.0). CONCLUSION CRD-directed AIT and/or elimination diet was efficient in treating EoE patients and was well tolerated.
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Affiliation(s)
- A Armentia
- Allergy Service, Hospital Universitario Río Hortega, Valladolid University, Spain.
| | | | - B Martín-Armentia
- Allergy Service, Hospital Universitario Río Hortega, Valladolid University, Spain
| | - J Santos-Fernández
- Gastroenterology Service, Hospital Clínico Universitario, Valladolid, Spain
| | - R Álvarez
- Molecular Biology Department, Cellular Biology Area, León University, León, Spain
| | - B Madrigal
- Histopathology Department, Hospital Universitario Río Hortega, Valladolid, Spain
| | - D Fernández-González
- Biodiversity and Environmental Management, University of León, León, Spain; Institute of Atmospheric Sciences and Climate, National Research Council, Bologna, Italy
| | - S Gayoso
- Histology Department, Valladolid University, Spain
| | - M J Gayoso
- Histology Department, Valladolid University, Spain
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30
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Gelpi E, Carrato C, Grau-López L, Becerra JL, Garcia-Armengol R, Massuet A, Cervera-Carles L, Clarimon J, Beyer K, Álvarez R. Incidental neuronal intermediate filament inclusion pathology: unexpected biopsy findings in a 37-year-old woman with epilepsy. Neuropathol Appl Neurobiol 2017; 43:636-640. [PMID: 28880406 DOI: 10.1111/nan.12441] [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] [Received: 04/28/2017] [Accepted: 08/23/2017] [Indexed: 11/27/2022]
Affiliation(s)
- E Gelpi
- Neurological Tissue Bank of the Biobanc-Hospital Clinic-Insitut d'Investigacions Biomèdiques August Pi I Sunyer, Barcelona, Spain
| | - C Carrato
- Pathology Department and Research Institute, Hospital Germans Trias i Pujol, Universitat de Barcelona, Badalona, Spain
| | - L Grau-López
- Neurology Department, Hospital Germans Trias i Pujol, Universitat de Barcelona, Badalona, Spain
| | - J L Becerra
- Neurology Department, Hospital Germans Trias i Pujol, Universitat de Barcelona, Badalona, Spain
| | - R Garcia-Armengol
- Neurosurgery, Hospital Germans Trias i Pujol, Universitat de Barcelona, Badalona, Spain
| | - A Massuet
- IDI-Magnetic Resonance Imaging Unit, Hospital Germans Trias i Pujol, Universitat de Barcelona, Badalona, Spain
| | - L Cervera-Carles
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - J Clarimon
- Memory Unit, Department of Neurology, IIB Sant Pau, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain.,Centro de Investigación Biomédica en Red en Enfermedades Neurodegenerativas (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
| | - K Beyer
- Pathology Department and Research Institute, Hospital Germans Trias i Pujol, Universitat de Barcelona, Badalona, Spain
| | - R Álvarez
- Neurology Department, Hospital Germans Trias i Pujol, Universitat de Barcelona, Badalona, Spain
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31
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Rizzi I, Vera C, Chirife CR, Álvarez R. PARASITE LOAD EVALUATION IN GOATS DIVISION OF DIDACTIC FARM OF THE FACULTY OF VETERINARY SCIENCE-UNA, USING FRESHWATER DIATOMITE. Compend cienc vet 2017. [DOI: 10.18004/compend.cienc.vet.2017.07.01.46-49] [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: 10/18/2022] Open
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32
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Hidalgo M, Álvarez R, Gallego J, Guillén-Ponce C, Laquente B, Macarulla T, Muñoz A, Salgado M, Vera R, Adeva J, Alés I, Arévalo S, Blázquez J, Calsina A, Carmona A, de Madaria E, Díaz R, Díez L, Fernández T, de Paredes BG, Gallardo ME, González I, Hernando O, Jiménez P, López A, López C, López-Ríos F, Martín E, Martínez J, Martínez A, Montans J, Pazo R, Plaza JC, Peiró I, Reina JJ, Sanjuanbenito A, Yaya R, Carrato A. Consensus guidelines for diagnosis, treatment and follow-up of patients with pancreatic cancer in Spain. Clin Transl Oncol 2017; 19:667-681. [PMID: 27995549 PMCID: PMC5427095 DOI: 10.1007/s12094-016-1594-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 11/24/2016] [Indexed: 12/12/2022]
Abstract
The management of patients with pancreatic cancer has advanced over the last few years. We convey a multidisciplinary group of experts in an attempt to stablish practical guidelines for the diagnoses, staging and management of these patients. This paper summarizes the main conclusions of the working group. Patients with suspected pancreatic ductal adenocarcinoma should be rapidly evaluated and referred to high-volume centers. Multidisciplinary supervision is critical for proper diagnoses, staging and to frame a treatment plan. Surgical resection together with chemotherapy offers the highest chance for cure in early stage disease. Patients with advanced disease should be classified in treatment groups to guide systemic treatment. New chemotherapeutic regimens have resulted in improved survival. Symptomatic management is critical in this disease. Enrollment in a clinical trial is, in general, recommended.
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Affiliation(s)
- M Hidalgo
- Spanish National Cancer Centre, C/Melchor Fernández Almagro, 3, 28029, Madrid, Spain.
- Beth Israel Deaconess Medical Center, Boston, USA.
| | - R Álvarez
- Department of Medical Oncology, Centro Integral Oncológico Clara Campal, Madrid, Spain
| | - J Gallego
- University Hospital of Elche, Elche, Spain
| | - C Guillén-Ponce
- Hospital Universitario Ramón y Cajal, Ctra. de Colmenar Viejo km. 9,100, 28034, Madrid, Spain
| | - B Laquente
- Institut Català d´Oncologia, Duran y Reynals Hospital, Hospitalet Llobregat, Barcelona, Spain
| | - T Macarulla
- Vall d'Hebrón University Hospital, Barcelona, Spain
| | - A Muñoz
- University Hospital Gregorio Marañón, Madrid, Spain
| | - M Salgado
- University Hospital of Ourense, Ourense, Spain
| | - R Vera
- Complejo Hospitalario de Navarra, Pamplona, Spain
| | - J Adeva
- University Hospital 12 de Octubre, Madrid, Spain
| | - I Alés
- Hospital Carlos Haya, Málaga, Spain
| | - S Arévalo
- University Hospital Donostia, San Sebastián, Spain
| | - J Blázquez
- Department of Radiology, University Hospital Ramón y Cajal, Madrid, Spain
- MD Anderson Hospital, Madrid, Spain
| | - A Calsina
- Department of Palliative Care, Hospital Germans Trias I Pujol, Institut Catalá d´Oncologia, Badalona, Spain
| | - A Carmona
- Department of Medical Oncology and Hematology, University Hospital Morales Messeguer, Murcia, Spain
| | - E de Madaria
- Department of Gastroenterology, Hospital General Universitario de Alicante, Alicante, Spain
| | - R Díaz
- Department of Medical Oncology, Hospital Universitari I Politècnic La Fe, Valencia, Spain
| | - L Díez
- Department of Surgery, Hospital Clínico San Carlos, Madrid, Spain
| | - T Fernández
- Department of Medical Oncology, Hospital Son Llàtzer, Palma de Mallorca, Spain
| | | | - M E Gallardo
- Complejo Hospitalario Universitario de Pontevedra, Pontevedra, Spain
| | - I González
- Complejo Hospitalario de Granada, Granada, Spain
| | - O Hernando
- Department of Radiotherapy, University Hospital HM Sanchinarro, Madrid, Spain
- University Hospital HM Puerta del Sur, Madrid, Spain
| | - P Jiménez
- Department of Medical Oncology, Hospital Universitario Central de Asturias, Asturias, Spain
| | - A López
- Hospital Universitario de Burgos, Burgos, Spain
| | - C López
- Hospital Universitario Marqués de Valdecilla, Santander, Spain
| | - F López-Ríos
- Department of Pathology, University Hospital HM Sanchinarro, Madrid, Spain
| | - E Martín
- Department of Surgery, Hospital Universitario de la Princesa, Madrid, Spain
| | - J Martínez
- Department of Medical Oncology, University Hospital Virgen de las Nieves, Granada, Spain
| | | | - J Montans
- Department of Pathology, Centro Anatomopatológico, Madrid, Spain
| | - R Pazo
- Department of Medical Oncology, University Hospital Miguel Servet, Saragossa, Spain
| | - J C Plaza
- Department of Pathology, University Hospital HM Sanchinarro, Madrid, Spain
| | - I Peiró
- Department of Endocrinology, Instituto Catalán de Oncología, Hospital Duran I Reynals, Hospitalet de Llobregat, Barcelona, Spain
| | - J J Reina
- Department of Medical Oncology, University Hospital Virgen de la Macarena, Seville, Spain
| | - A Sanjuanbenito
- Department of Surgery, University Hospital Ramón y Cajal, Madrid, Spain
| | - R Yaya
- Department of Medical Oncology, Fundación Instituto Valenciano de Oncología, Valencia, Spain
| | - Alfredo Carrato
- Hospital Universitario Ramón y Cajal, Ctra. de Colmenar Viejo km. 9,100, 28034, Madrid, Spain.
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33
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Álvarez R, Aramburu L, Puebla P, Caballero E, González M, Vicente A, Medarde M, Peláez R. Pyridine Based Antitumour Compounds Acting at the Colchicine Site. Curr Med Chem 2017; 23:1100-30. [PMID: 27117490 DOI: 10.2174/092986732311160420104823] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 01/26/2016] [Accepted: 03/11/2016] [Indexed: 11/22/2022]
Abstract
Antimitotics binding at the colchicine site of tubulin are important antitumour and vascular disrupting agents. Pyridines and azines are privileged scaffolds in medicinal chemistry and in recent years many colchicine site ligands (CSL) have incorporated them into their structures with the aim of improving their pharmacokinetic and pharmacodynamics properties. CSL have been classified according to their chemical structures and the chemical structures of the pyridine and azine containing antimitotic compounds are described. The designed principles behind the structural modifications and the achieved effect on the biological activity upon inclusion of these heterocycles are also discussed. Lessons from the achievements and failures have been extracted and future perspectives delineated.
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Affiliation(s)
| | | | | | | | | | | | | | - R Peláez
- Departamento de Química Farmacéutica, Facultad de Farmacia, Campus Miguel de Unamuno s/n, Universidad de Salamanca, Salamanca, 37007, Spain.
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Gudiol C, Royo-Cebrecos C, Tebe C, Abdala E, Akova M, Álvarez R, Maestro-de la Calle G, Cano A, Cervera C, Clemente WT, Martín-Dávila P, Freifeld A, Gómez L, Gottlieb T, Gurguí M, Herrera F, Manzur A, Maschmeyer G, Meije Y, Montejo M, Peghin M, Rodríguez-Baño J, Ruiz-Camps I, Sukiennik TC, Carratalà J. Clinical efficacy of β-lactam/β-lactamase inhibitor combinations for the treatment of bloodstream infection due to extended-spectrum β-lactamase-producing Enterobacteriaceae in haematological patients with neutropaenia: a study protocol for a retrospective observational study (BICAR). BMJ Open 2017; 7:e013268. [PMID: 28115333 PMCID: PMC5278288 DOI: 10.1136/bmjopen-2016-013268] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Bloodstream infection (BSI) due to extended-spectrum β-lactamase-producing Gram-negative bacilli (ESBL-GNB) is increasing at an alarming pace worldwide. Although β-lactam/β-lactamase inhibitor (BLBLI) combinations have been suggested as an alternative to carbapenems for the treatment of BSI due to these resistant organisms in the general population, their usefulness for the treatment of BSI due to ESBL-GNB in haematological patients with neutropaenia is yet to be elucidated. The aim of the BICAR study is to compare the efficacy of BLBLI combinations with that of carbapenems for the treatment of BSI due to an ESBL-GNB in this population. METHODS AND ANALYSIS A multinational, multicentre, observational retrospective study. Episodes of BSI due to ESBL-GNB occurring in haematological patients and haematopoietic stem cell transplant recipients with neutropaenia from 1 January 2006 to 31 March 2015 will be analysed. The primary end point will be case-fatality rate within 30 days of onset of BSI. The secondary end points will be 7-day and 14-day case-fatality rates, microbiological failure, colonisation/infection by resistant bacteria, superinfection, intensive care unit admission and development of adverse events. SAMPLE SIZE The number of expected episodes of BSI due to ESBL-GNB in the participant centres will be 260 with a ratio of control to experimental participants of 2. ETHICS AND DISSEMINATION The protocol of the study was approved at the first site by the Research Ethics Committee (REC) of Hospital Universitari de Bellvitge. Approval will be also sought from all relevant RECs. Any formal presentation or publication of data from this study will be considered as a joint publication by the participating investigators and will follow the recommendations of the International Committee of Medical Journal Editors (ICMJE). The study has been endorsed by the European Study Group for Bloodstream Infection and Sepsis (ESGBIS) and the European Study Group for Infections in Compromised Hosts (ESGICH).
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Affiliation(s)
- C Gudiol
- Infectious Diseases Department, Bellvitge University Hospital, IDIBELL, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
- Duran i Reynals Hospital, ICO, L'Hospitalet de Llobregat, Barcelona, Spain
- REIPI (Spanish Network for Research in Infectious Disease), Instituto de Salud Carlos III, Madrid, Spain
| | - C Royo-Cebrecos
- Infectious Diseases Department, Bellvitge University Hospital, IDIBELL, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
- REIPI (Spanish Network for Research in Infectious Disease), Instituto de Salud Carlos III, Madrid, Spain
| | - C Tebe
- Statistics Advisory Service, Institute of Biomedical Research of Bellvitge, Rovira i Virgili University, L'Hospitalet de Llobregat, Barcelona, Spain
| | - E Abdala
- Faculty of Medicine, Instituto do Câncer do Estado de São Paulo, University of São Paulo, Sao Paulo, Brazil
| | - M Akova
- Hacettepe University School of Medicine, Ankara, Turkey
| | - R Álvarez
- Infectious Diseases Research Group, Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), University of Seville/CSIC/University Hospitals Virgen del Rocio and Virgen Macarena, Seville, Spain
| | - G Maestro-de la Calle
- Infectious Diseases Unit, Instituto de Investigación Hospital “12 de Octubre” (i+12), “12 de Octubre” University Hospital; School of Medicine, Universidad Complutense, Madrid, Spain
| | - A Cano
- REIPI (Spanish Network for Research in Infectious Disease), Instituto de Salud Carlos III, Madrid, Spain
- Reina Sofía University Hospital-IMIBIC-UCO, Córdoba, Spain
| | - C Cervera
- University Hospital of Alberta, Edmonton, Alberta, Canada
| | - W T Clemente
- Infectious Disease Consultant, Digestive Transplant Service, Hospital das Clínicas, Universidade FederalMinas Gerais, Brazil
| | - P Martín-Dávila
- Infectious Diseases Department, Ramon y Cajal Hospital, Madrid, Spain
| | - A Freifeld
- Infectious Diseases Section, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - L Gómez
- Department of Internal Medicine, University Hospital Mútua de Terrassa, Barcelona, Spain
| | - T Gottlieb
- Department of Microbiology & Infectious Diseases, Concord Hospital, Concord, New South Wales, Australia
| | - M Gurguí
- Infectious Diseases Unit, Hospital de la Santa Creu i Sant Pau and Instituto de Investigación Biomédica Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - F Herrera
- Infectious Diseases Section, Department of Medicine, Centro de Educación Médica e Investigaciones Clínicas (CEMIC), Buenos Aires, Argentina
| | - A Manzur
- Infectious Diseases, Hospital Rawson, San Juan, Argentina
| | - G Maschmeyer
- Department of Hematology, Oncology and Palliative Care, Klinikum Ernst von Bergmann, Academic Teaching Hospital of Charité University Medical School, Berlin, Germany
| | - Y Meije
- REIPI (Spanish Network for Research in Infectious Disease), Instituto de Salud Carlos III, Madrid, Spain
- Infectious Disease Unit, Internal Medicine Department, Barcelona Hospital, SCIAS,Barcelona, Spain
| | - M Montejo
- REIPI (Spanish Network for Research in Infectious Disease), Instituto de Salud Carlos III, Madrid, Spain
- Infectious Diseases Unit, Cruces University Hospital, Bilbao, Spain
| | - M Peghin
- Infectious Diseases Division, Santa Maria Misericordia University Hospital, Udine, Italy
| | - J Rodríguez-Baño
- REIPI (Spanish Network for Research in Infectious Disease), Instituto de Salud Carlos III, Madrid, Spain
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, University Hospitals Virgen Macarena and Virgen del Rocío—IBiS; Department of Medicine, University of Seville, Seville, Spain
| | - I Ruiz-Camps
- REIPI (Spanish Network for Research in Infectious Disease), Instituto de Salud Carlos III, Madrid, Spain
- Infectious Diseases Department, Vall d'Hebrón University Hospital, Barcelona, Spain
| | - T C Sukiennik
- Hospital Santa Casa de Misericórdia de Porto Alegre, Brazil
| | - J Carratalà
- Infectious Diseases Department, Bellvitge University Hospital, IDIBELL, University of Barcelona, L'Hospitalet de Llobregat, Barcelona, Spain
- REIPI (Spanish Network for Research in Infectious Disease), Instituto de Salud Carlos III, Madrid, Spain
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Loredo C, Ordóñez A, Garcia-Ordiales E, Álvarez R, Roqueñi N, Cienfuegos P, Peña A, Burnside NM. Hydrochemical characterization of a mine water geothermal energy resource in NW Spain. Sci Total Environ 2017; 576:59-69. [PMID: 27780100 DOI: 10.1016/j.scitotenv.2016.10.084] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/11/2016] [Accepted: 10/11/2016] [Indexed: 06/06/2023]
Abstract
Abandoned and flooded mine networks provide underground reservoirs of mine water that can be used as a renewable geothermal energy source. A complete hydrochemical characterization of mine water is required to optimally design the geothermal installation, understand the hydraulic behavior of the water in the reservoir and prevent undesired effects such as pipe clogging via mineral precipitation. Water pumped from the Barredo-Figaredo mining reservoir (Asturias, NW Spain), which is currently exploited for geothermal use, has been studied and compared to water from a separate, nearby mountain mine and a river that receives mine water discharge and partially infiltrates into the mine workings. Although the hydrochemistry was altered during the flooding process, the deep mine waters are currently near neutral, net alkaline, high metal waters of Na-HCO3 type. Isotopic values suggest that mine waters are closely related to modern meteoric water, and likely correspond to rapid infiltration. Suspended and dissolved solids, and particularly iron content, of mine water results in some scaling and partial clogging of heat exchangers, but water temperature is stable (22°C) and increases with depth, so, considering the available flow (>100Ls-1), the Barredo-Figaredo mining reservoir represents a sustainable, long-term resource for geothermal use.
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Affiliation(s)
- C Loredo
- Dep. Explotación y Prospección de Minas, University of Oviedo, Independencia, 13, 33004 Oviedo, Asturias, Spain.
| | - A Ordóñez
- Dep. Explotación y Prospección de Minas, University of Oviedo, Independencia, 13, 33004 Oviedo, Asturias, Spain
| | - E Garcia-Ordiales
- Dep. Explotación y Prospección de Minas, University of Oviedo, Independencia, 13, 33004 Oviedo, Asturias, Spain
| | - R Álvarez
- Dep. Explotación y Prospección de Minas, University of Oviedo, Independencia, 13, 33004 Oviedo, Asturias, Spain
| | - N Roqueñi
- Dep. Explotación y Prospección de Minas, University of Oviedo, Independencia, 13, 33004 Oviedo, Asturias, Spain
| | - P Cienfuegos
- Dep. Explotación y Prospección de Minas, University of Oviedo, Independencia, 13, 33004 Oviedo, Asturias, Spain
| | - A Peña
- Hulleras del Norte, S. A. (HUNOSA), Avenida de Galicia 44, ES-33005 Oviedo, Spain
| | - N M Burnside
- School of Engineering, University of Glasgow, G12 8QQ, UK
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Bjurström MF, Álvarez R, Nicol AL, Olmstead R, Amid PK, Chen DC. Quantitative validation of sensory mapping in persistent postherniorrhaphy inguinal pain patients undergoing triple neurectomy. Hernia 2017; 21:207-214. [PMID: 28091815 DOI: 10.1007/s10029-017-1580-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 03/12/2016] [Accepted: 01/06/2017] [Indexed: 11/29/2022]
Abstract
PURPOSE Neurectomy of the inguinal nerves may be considered for selected refractory cases of chronic postherniorrhaphy inguinal pain (CPIP). There is to date a paucity of easily applicable clinical tools to identify neuropathic pain and examine the neurosensory effects of remedial surgery. The present quantitative sensory testing (QST) pilot study evaluates a sensory mapping technique. METHODS Longitudinal (preoperative, immediate postoperative, and late postoperative) dermatomal sensory mapping and a comprehensive QST protocol were conducted in CPIP patients with unilateral, predominantly neuropathic inguinodynia presenting for triple neurectomy (n = 13). QST was conducted in four areas on the affected, painful side and in one contralateral comparison site. QST variables were compared according to sensory mapping outcomes: (o)/normal sensation, (+)/pain, and (-)/numbness. Diagnostic ability of the sensory mapping outcomes to detect QST-assessed allodynia or hypoesthesia was estimated through calculation of specificity and sensitivity values. RESULTS Preoperatively, patients exhibited mechanical hypoesthesia and allodynia and pressure allodynia and hyperalgesia in painful areas mapped (+) (p < .05); sensory mapping outcome (+) demonstrated high ability to detect mechanical allodynia [sensitivity 0.74 (95% CI 0.61-0.86), specificity 0.94 (0.84-1.00)] and pressure allodynia [sensitivity 0.96 (0.89-1.00), specificity 1.00 (1.00-1.00)], but not thermal allodynia. Postoperatively, mapped areas of numbness (-) were associated with mechanical and thermal hypoesthesia (p < .05); (-) showed high sensitivity and specificity to detect mechanical and cold hypoesthesia. CONCLUSIONS Sensory mapping provides an accurate clinical neuropathic assessment with strong correlation to QST findings of preoperative mechanical and pressure allodynia, and postoperative mechanical and thermal hypoesthesia in CPIP patients undergoing neurectomy.
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Affiliation(s)
- M F Bjurström
- Department of Anesthesiology, University of California, Los Angeles (UCLA), Los Angeles, CA, USA. .,Cousins Center for Psychoneuroimmunology, UCLA Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles (UCLA), 300 UCLA Medical Plaza, Suite 3132, Los Angeles, CA, 90095-7076, USA.
| | - R Álvarez
- Department of Abdominal Wall Surgery, Proben Hernia Clinic, Universidad de Monterrey (UDEM), Guadalajara, Mexico
| | - A L Nicol
- Department of Anesthesiology, University of Kansas, Kansas City, KS, USA
| | - R Olmstead
- Cousins Center for Psychoneuroimmunology, UCLA Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles (UCLA), 300 UCLA Medical Plaza, Suite 3132, Los Angeles, CA, 90095-7076, USA
| | - P K Amid
- Department of Surgery, Lichtenstein Amid Hernia Clinic at UCLA, Los Angeles, CA, USA
| | - D C Chen
- Department of Surgery, Lichtenstein Amid Hernia Clinic at UCLA, Los Angeles, CA, USA
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Valiente OL, Álvarez R, Alonso N, Corrales MP. EVALUATION OF PERFORMANCE, BROMATOLOGICAL COMPOSITION AND DIGESTIBILITY IN VITRO GREEN WHEAT HYDROPONIC FORAGE HARVESTED (Triticum spp) AT 8 AND 10 DAYS. Compend cienc vet 2016. [DOI: 10.18004/compend.cienc.vet.2016.06.02.42-46] [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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Álvarez R, Ordóñez A, De Miguel E, Loredo C. Prediction of the flooding of a mining reservoir in NW Spain. J Environ Manage 2016; 184:219-228. [PMID: 27720329 DOI: 10.1016/j.jenvman.2016.09.072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/19/2016] [Accepted: 09/21/2016] [Indexed: 06/06/2023]
Abstract
Abandoned and flooded mines constitute underground reservoirs which must be managed. When pumping is stopped in a closed mine, the process of flooding should be anticipated in order to avoid environmentally undesirable or unexpected mine water discharges at the surface, particularly in populated areas. The Candín-Fondón mining reservoir in Asturias (NW Spain) has an estimated void volume of 8 million m3 and some urban areas are susceptible to be flooded if the water is freely released from the lowest mine adit/pithead. A conceptual model of this reservoir was undertaken and the flooding process was numerically modelled in order to estimate the time that the flooding would take. Additionally, the maximum safe height for the filling of the reservoir is discussed.
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Affiliation(s)
- R Álvarez
- Dep. Explotación y Prospección de Minas, University of Oviedo, Independencia, 13, 33004 Oviedo, Asturias, Spain.
| | - A Ordóñez
- Dep. Explotación y Prospección de Minas, University of Oviedo, Independencia, 13, 33004 Oviedo, Asturias, Spain
| | - E De Miguel
- Environmental Geochemistry Research and Engineering Laboratory, Universidad Politécnica de Madrid, Spain
| | - C Loredo
- Dep. Explotación y Prospección de Minas, University of Oviedo, Independencia, 13, 33004 Oviedo, Asturias, Spain
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Álvarez R, Martinez JJI, Muñoz-Viveros AL, Molist P, Abad-González J, Nieto Nafría JM. Contribution of gall microscopic structure to taxonomy of gallicolous aphids on Pistacia. Plant Biol (Stuttg) 2016; 18:868-875. [PMID: 27259077 DOI: 10.1111/plb.12475] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/30/2016] [Indexed: 06/05/2023]
Abstract
Aphids inducing galls on Pistacia plants belong to the tribe Fordini. According to the Heie & Wegierek classification, the genera are grouped into three subtribes. Previous microscopic studies showed that this taxonomy is not consistent with the histological characteristics of the galls. In this paper, galls induced by Aplonerura lentisci, Asiphonella cynodonti, Forda riccobonii, Slavun wertheimae and Smynthurodes betae were analyzed for the first time, as well as nine other galls previously described. Based on histological features three groups of galls can be establish: the first group comprises closed galls, induced by Baizongia pistaciae, Geoica utricularia, Rectinasus buxtoni and Slavun wertheimae; the second group includes two species of Geopemphigus (G. blackmani and G. torsus), and the third one is divided into two subgroups, the first comprises Aplonerura lentisci, Asiphonella cynodonti and Geopemphigus morral, and the second that includes Forda formicaria, F. marginata, F. riccobonii, Paracletus cimiciformis and Smynthurodes betae. An identification key of species based on microscopic features of galls is presented.
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Affiliation(s)
- R Álvarez
- Departamento de Biología Molecular-Área de Biología Celular, Universidad de León, León, Spain
| | - J-J I Martinez
- Department of Animal Sciences, Faculty of Sciences and Technology, Tel Hai College, Tel Hai, Israel
- Laboratory of Animal Ecology & Biodiversity, MIGAL - Galilee Research Center, South Industry Zone, Kiryat Shmona, Israel
| | - A L Muñoz-Viveros
- Laboratorio de Control de Plagas, Facultad de Estudios, Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Mexico
| | - P Molist
- Department of Functional Biology and Health Sciences, University of Vigo, Vigo, Spain
| | - J Abad-González
- Departamento de Economía y Estadística, Universidad de León, León, Spain
| | - J M Nieto Nafría
- Departamento de Biodiversidad y Gestión Ambiental, Universidad de León, León, Spain
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Frávega J, Álvarez R, Díaz F, Inostroza O, Tejías C, Rodas PI, Paredes-Sabja D, Fuentes JA, Calderón IL, Gil F. SalmonellaTyphimurium exhibits fluoroquinolone resistance mediated by the accumulation of the antioxidant molecule H2S in a CysK-dependent manner. J Antimicrob Chemother 2016; 71:3409-3415. [DOI: 10.1093/jac/dkw311] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 06/23/2016] [Accepted: 07/05/2016] [Indexed: 01/06/2023] Open
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Ovejero S, Iza M, Vallejo S, Vera C, Sedano A, Álvarez R, Mata L, Sánchez-Alonso S. Use of inhaled loxapine in acute psychiatric agitation. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.564] [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: 10/21/2022] Open
Abstract
ObjectivesThe aim of this work is to study the efficacy of loxapine inhalation powder on agitated patients in a psychiatric inpatient unit.MethodsNineteen patients sample, with an average age of 39.4 years old, diagnosed with schizophrenia, bipolar disorder or schizoaffective disorder. Patients inhaled loxapine 10 mg, using the staccato system, when they suffered a psychomotor agitation. The clinical efficacy was measured as a change from baseline in the Positive and Negative Syndrome Scale-Excited Component (PANSS-EC) and in the Young Mania Rating Scale (YMRS) one hour after the administration of loxapine.ResultsA mean of 9.8 points reduction (22.6 at baseline and 12.7 one hour after the administration) was found on the PANSS-EC (t-test, P < .001) and 68.4% of the patients were considered responders as they obtained a reduction of at least 40% of the basal score. On 10 of the total of the agitated patients showed an improvement of the psychomotor excitement, and this allowed the clinicians to remove the physical restraint; on 6 of the agitated patients the physical restraint could be avoided during the whole treatment; and 3 of the patients experienced a reduction of the excitement. The reduction on PANNS-EC on the latest group was not statistically significant (t-test, P = .121).ConclusionsInhaled loxapine was a non-invasive, rapid and effective alternative treatment for acute agitation in a psychiatric inpatient unit. It resulted more effective on mild and moderate cases; not been significantly effective on the severe cases of agitation.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Álvarez R, Masjuan J. Agnosias visuales. Rev Clin Esp 2016; 216:85-91. [DOI: 10.1016/j.rce.2015.07.009] [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] [Received: 05/30/2015] [Revised: 07/14/2015] [Accepted: 07/16/2015] [Indexed: 10/23/2022]
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Álvarez R, Masjuan J. Visual agnosia. Rev Clin Esp 2016. [DOI: 10.1016/j.rceng.2015.10.002] [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: 11/28/2022]
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Arredondo J, de la Hoz ML, Álvarez R, Hernando M. [Small bowel intussusception in the adult caused by ileal submucous lipoma]. An Sist Sanit Navar 2015; 38:343-6. [PMID: 26486546 DOI: 10.23938/assn.0076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We present the case of a 68 year-old male patient with secondary intestinal intussuspection due to a submucous li-poma of the ileum. This is a rare entity in adults and is usually due to an organic lesion. The clinical manifestation is characterized by vomiting, abdominal pain and melenas. In our case the patient, following a colonoscopy and an abdominal CT-scan, was subjected to an extended resection of caecum and terminal ilium. At present, the precision of the etiological diagnosis of intussuspections has increased thanks to the development of image tests, like CT-scan. Early surgical treatment is recommended, without intraoperative deintussuspection given the high risk of presenting a malign or ischemic lesion in the adult.
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Affiliation(s)
- J Arredondo
- Servicio de Cirugía General, Complejo Asistencial Universitario de León, León, 24001, Spain.
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Ordóñez A, Álvarez R, De Miguel E, Charlesworth S. Spatial and temporal variations of trace element distribution in soils and street dust of an industrial town in NW Spain: 15years of study. Sci Total Environ 2015; 524-525:93-103. [PMID: 25889548 DOI: 10.1016/j.scitotenv.2015.04.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/06/2015] [Accepted: 04/07/2015] [Indexed: 06/04/2023]
Abstract
Extensive spatial and temporal surveys, over 15 years, have been conducted in soil in urban parks and street dusts in one of the most polluted cities in western Europe, Avilés (NW Spain). The first survey was carried out in 1996, and since then monitoring has been undertaken every five years. Whilst the sampling site is a relatively small town, industrial activities (mainly the steel industry and Zn and Al metallurgy) and other less significant urban sources, such as traffic, strongly affect the load of heavy metals in the urban aerosol. Elemental tracers have been used to characterise the influence of these sources on the composition of soil and dust. Although PM10 has decreased over these years as a result of environmental measures undertaken in the city, some of the "industrial" elements still remain in concentrations of concern for example, up to 4.6% and 0.5% of Zn in dust and soil, respectively. Spatial trends in metals such as Zn and Cd clearly reflect sources from the processing industries. The concentrations of these elements across Europe have reduced over time, however the most recent results from Avilés revealed an upward trend in concentration for Zn, Cd, Hg and As. A risk assessment of the soil highlighted As as an element of concern since its cancer risk in adults was more than double the value above which regulatory agencies deem it to be unacceptable. If children were considered to be the receptors, then the risk nearly doubles from this element.
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Affiliation(s)
- A Ordóñez
- Dep. Explotación y Prospección de Minas, University of Oviedo, Escuela de Ingeniería de Minas, Energía y Materiales, c/Independencia, 13, 33004 Oviedo, Asturias, Spain.
| | - R Álvarez
- Dep. Explotación y Prospección de Minas, University of Oviedo, Escuela de Ingeniería de Minas, Energía y Materiales, c/Independencia, 13, 33004 Oviedo, Asturias, Spain
| | - E De Miguel
- Environmental Geochemistry Research and Engineering Laboratory, Universidad Politécnica de Madrid, Spain.
| | - S Charlesworth
- Centre for Agroecology, Water and Resilience, Coventry University, United Kingdom.
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Arredondo J, Hoz MDL, Álvarez R, Hernando M. Invaginación de intestino delgado en el adulto causada por lipoma submucoso de íleon. An Sist Sanit Navar 2015. [DOI: 10.4321/s1137-66272015000200022] [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: 11/11/2022]
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Rodríguez-Molinero A, Pérez-Martínez DA, Gálvez-Barrón C, Hernández-Vara J, Martínez-Castrillo JC, Álvarez R, de Fabregues O, Samà A, Pérez-López C, Romagosa J, Bregman J. Remote control of apomorphine infusion rate in Parkinson's disease: Real-time dose variations according to the patients' motor state. A proof of concept. Parkinsonism Relat Disord 2015; 21:996-8. [PMID: 25997864 DOI: 10.1016/j.parkreldis.2015.04.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 04/20/2015] [Accepted: 04/22/2015] [Indexed: 11/25/2022]
Affiliation(s)
- A Rodríguez-Molinero
- Clinical Research Unit, Fundación Sant Antoni Abat (Consorci Sanitiari del Garraf), Barcelona, Spain; School of Engineering and Informatics, National University of Ireland at Galway, Galway, Ireland.
| | - D A Pérez-Martínez
- Department of Neurology, Hospital Universitario Infanta Cristina, Parla-Madrid, Spain
| | - C Gálvez-Barrón
- Clinical Research Unit, Fundación Sant Antoni Abat (Consorci Sanitiari del Garraf), Barcelona, Spain
| | - J Hernández-Vara
- Department of Neurology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | | | - R Álvarez
- Department of Neurology, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain
| | - O de Fabregues
- Department of Neurology, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - A Samà
- Technical Research Centre for Dependency Care and Autonomous Living, Universitat Politècnica de Catalunya, Barcelona, Spain
| | - C Pérez-López
- Technical Research Centre for Dependency Care and Autonomous Living, Universitat Politècnica de Catalunya, Barcelona, Spain
| | - J Romagosa
- Technical Research Centre for Dependency Care and Autonomous Living, Universitat Politècnica de Catalunya, Barcelona, Spain
| | - J Bregman
- Maccabi Institute for Health Services Research, Tel-Aviv, Israel
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48
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Álvarez R, del Hoyo A, Díaz-Rodríguez C, Coello AJ, del Campo EM, Barreno E, Catalá M, Casano LM. Lichen rehydration in heavy metal-polluted environments: Pb modulates the oxidative response of both Ramalina farinacea thalli and its isolated microalgae. Microb Ecol 2015; 69:698-709. [PMID: 25367428 DOI: 10.1007/s00248-014-0524-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 10/20/2014] [Indexed: 06/04/2023]
Abstract
Lichens are adapted to desiccation/rehydration and accumulate heavy metals, which induce ROS especially from the photobiont photosynthetic pigments. Although their mechanisms of abiotic stress tolerance are still to be unravelled, they seem related to symbionts' reciprocal upregulation of antioxidant systems. With the aim to study the effect of Pb on oxidative status during rehydration, the kinetics of intracellular ROS, lipid peroxidation and chlorophyll autofluorescence of whole Ramalina farinacea thalli and its isolated microalgae (Trebouxia TR1 and T. TR9) was recorded. A genetic characterization of the microalgae present in the thalli used was also carried out in order to assess possible correlations among the relative abundance of each phycobiont, their individual physiological responses and that of the entire thallus. Unexpectedly, Pb decreased ROS and lipid peroxidation in thalli and its phycobionts, associated with a lower chlorophyll autofluorescence. Each phycobiont showed a particular pattern, but the oxidative response of the thallus paralleled the TR1's, agreeing with the genetic identification of this strain as the predominant phycobiont. We conclude that: (1) the lichen oxidative behaviour seems to be modulated by the predominant phycobiont and (2) Pb evokes in R. farinacea and its phycobionts strong mechanisms to neutralize its own oxidant effects along with those of rehydration.
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Affiliation(s)
- R Álvarez
- Deptartamento Ciencias de la Vida, Campus Universitario, Universidad de Alcalá, 28805, Alcalá de Henares, Madrid, Spain
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Álvarez R, Meléndez-Martínez AJ, Vicario IM, Alcalde MJ. Carotenoid and Vitamin A Contents in Biological Fluids and Tissues of Animals as an Effect of the Diet: A Review. Food Reviews International 2015. [DOI: 10.1080/87559129.2015.1015139] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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50
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Denis JG, Franci G, Altucci L, Aurrecoechea JM, de Lera ÁR, Álvarez R. Synthesis of 7-alkylidene-7,12-dihydroindolo[3,2-d]benzazepine-6-(5H)-ones (7-alkylidene-paullones) by N-cyclization–oxidative Heck cascade and characterization as sirtuin modulators. Org Biomol Chem 2015; 13:2800-10. [DOI: 10.1039/c4ob02493a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A palladium-induced cascade of N-cyclization and oxidative Heck reaction of o-alkynylanilines produced 7-alkylidene-indolobenzazepinones (paullones) that have sirtuin modulation activities.
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Affiliation(s)
- J. G. Denis
- Departamento de Química Orgánica
- Facultad de Química (CINBIO) and Instituto de Investigación Biomédica de Vigo (IBIV)
- Universidade de Vigo
- 36310 Vigo
- Spain
| | - G. Franci
- Seconda Università degli Studi di Napoli
- Dipartimento di Biochimica
- Biofisica e Patologia generale
- Napoli
- Italy
| | - L. Altucci
- Seconda Università degli Studi di Napoli
- Dipartimento di Biochimica
- Biofisica e Patologia generale
- Napoli
- Italy
| | - J. M. Aurrecoechea
- Departamento de Química Orgánica II
- Facultad de Ciencia y Tecnología
- Universidad del País Vasco
- 48080 Bilbao
- Spain
| | - Á. R. de Lera
- Departamento de Química Orgánica
- Facultad de Química (CINBIO) and Instituto de Investigación Biomédica de Vigo (IBIV)
- Universidade de Vigo
- 36310 Vigo
- Spain
| | - R. Álvarez
- Departamento de Química Orgánica
- Facultad de Química (CINBIO) and Instituto de Investigación Biomédica de Vigo (IBIV)
- Universidade de Vigo
- 36310 Vigo
- Spain
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