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Fernández-Martínez R, Corrochano N, Álvarez-Quintana J, Ordóñez A, Álvarez R, Rucandio I. Assessment of the ecological risk and mobility of arsenic and heavy metals in soils and mine tailings from the Carmina mine site (Asturias, NW Spain). Environ Geochem Health 2024; 46:90. [PMID: 38367139 PMCID: PMC10874346 DOI: 10.1007/s10653-023-01848-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 12/27/2023] [Indexed: 02/19/2024]
Abstract
An evaluation of the pollution, distribution, and mobility of arsenic and heavy metals in spoil heaps and soils surrounding the abandoned Carmina lead-zinc mine (Asturias, northern Spain) was carried out. Fractionation of arsenic was performed by an arsenic-specific sequential extraction method; while, heavy metal fractionations was carried out using the protocol of the Bureau Community of Reference (BCR) (now renamed Standards, Measurements and Testing Programme). Arsenic appeared predominantly associated with amorphous iron oxyhydroxides. Among the heavy metals, lead and zinc showed high availability since significant amounts were extracted in the nonresidual fractions; whereas, chromium, copper and nickel showed very low availability, indicating their lithogenic origins. The results showed that the extractability of heavy metals in soils is influenced mainly by the presence of iron and manganese oxides as well as by pH and Eh. Multiple pollution indices, including the enrichment factor (EF), geoaccumulation index (Igeo), ecological risk index (Er) and potential ecological risk index (PERI), were used to assess the degree of soil pollution in the mine area. All results showed that lead was the key factor causing the pollution and ecological risk in the studied area, and copper, zinc and arsenic also had significant contributions. Notably, the sites at higher risk coincided with those with high availability of arsenic and heavy metals. This study provides an integrative approach that serves as a powerful tool to evaluate the metal pollution status and potential threats to the local environment of abandoned mining areas, and the results are useful for making management decisions in these areas.
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Affiliation(s)
- Rodolfo Fernández-Martínez
- Departamento de Tecnología, División de Química, Unidad de Espectroscopía, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense, 40, 28040, Madrid, Spain.
| | - Noelia Corrochano
- Departamento de Tecnología, División de Química, Unidad de Espectroscopía, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense, 40, 28040, Madrid, Spain
| | - Jessica Álvarez-Quintana
- Escuela de Ingeniería de Minas, Energía y Materiales, Dpto. de Explotación y Prospección de Minas, Universidad de Oviedo, Independencia, 13, 33004, Oviedo, Spain
| | - Almudena Ordóñez
- Escuela de Ingeniería de Minas, Energía y Materiales, Dpto. de Explotación y Prospección de Minas, Universidad de Oviedo, Independencia, 13, 33004, Oviedo, Spain
| | - Rodrigo Álvarez
- Escuela de Ingeniería de Minas, Energía y Materiales, Dpto. de Explotación y Prospección de Minas, Universidad de Oviedo, Independencia, 13, 33004, Oviedo, Spain
| | - Isabel Rucandio
- Departamento de Tecnología, División de Química, Unidad de Espectroscopía, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense, 40, 28040, Madrid, Spain
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Escudero L, Ojanguren AF, Álvarez R, García C, Pañeda J, Alberquilla F, Ordóñez A. Assessment of hydrological, geological, and biological parameters of a river basin impacted by old Hg mining in NW Spain. Environ Sci Pollut Res Int 2024; 31:11081-11095. [PMID: 38217815 PMCID: PMC10850224 DOI: 10.1007/s11356-024-31888-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 01/02/2024] [Indexed: 01/15/2024]
Abstract
Mercury (Hg) is a toxic metal that can cause adverse effects for the health of ecosystems. The Caudal River is one of the main rivers in the Asturias region (NW Spain), whose basin is highly anthropized, hosting several Hg mines, closed in the last century. Arsenic (As) is also found in the mineral paragenesis of the Hg deposits, posing a greater environmental risk. In the mining sites, remaining old facilities and tailings continue to release these elements into the environment. In this work, samples of fluvial sediments and water were taken, both in areas affected by anthropic activity and in pristine areas, in order to establish the background levels for the critical elements. The mineralogical study of the sediments, combined with EDS microanalysis, is useful to identify mineralogical traps such as Fe oxides or clays to retain the As. The As content in all sampled sediments is above the threshold effect levels (TEL), the possible effect range within which adverse effects occasionally occur, according to the Canadian Sediment Quality Guidelines for the Protection of Aquatic Life. This fact is related to a naturally high geochemical background in the basin, due to the existing mineral deposits. The PEL threshold (the probable effect range within which adverse effects frequently occur) is exceeded by more than an order of magnitude in the sediments downstream of the Hg mines. In these points, the As content in the water, exceeding 700 μg L-1 As, is also above the quality standard established in Spanish legislation. As a result, the Caudal River tributaries in the lower part of the basin do not reach a good ecological state, according to the Hydrological Planning Office, and in some cases their state is deficient, showing low richness and high dominance of macroinvertebrates. Although the concentrations decrease with distance from the source, these findings justify the low ecological quality of the affected watercourses.
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Affiliation(s)
- Lucía Escudero
- Department Exploitation and Prospecting of Mines, University of Oviedo, Asturias, Spain
| | - Alfredo F Ojanguren
- Department Biology of Organisms and Systems, University of Oviedo, Asturias, Spain
| | - Rodrigo Álvarez
- Department Exploitation and Prospecting of Mines, University of Oviedo, Asturias, Spain
| | - Carmen García
- Department Exploitation and Prospecting of Mines, University of Oviedo, Asturias, Spain
| | - Jose Pañeda
- Department Exploitation and Prospecting of Mines, University of Oviedo, Asturias, Spain
| | - Fernando Alberquilla
- Department Exploitation and Prospecting of Mines, University of Oviedo, Asturias, Spain
| | - Almudena Ordóñez
- Department Exploitation and Prospecting of Mines, University of Oviedo, Asturias, Spain.
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Ramírez AT, Valls J, Baena A, Rojas FD, Ramírez K, Álvarez R, Cristaldo C, Henríquez O, Moreno A, Reynaga DC, Palma HG, Robinson I, Hernández DC, Bardales R, Cardinal L, Salgado Y, Martínez S, González E, Guillén D, Fleider L, Tatti S, Villagra V, Venegas G, Cruz-Valdez A, Valencia M, Rodríguez G, Terán C, Picconi MA, Ferrera A, Kasamatsu E, Mendoza L, Calderon A, Luciani S, Broutet N, Darragh T, Almonte M, Herrero R. Performance of cervical cytology and HPV testing for primary cervical cancer screening in Latin America: an analysis within the ESTAMPA study. Lancet Reg Health Am 2023; 26:100593. [PMID: 37766799 PMCID: PMC10520426 DOI: 10.1016/j.lana.2023.100593] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/28/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023]
Abstract
Background Cervical cytology remains widely used as the initial tool in cervical cancer screening worldwide. WHO guidelines recommend replacing cytology with primary HPV testing to reach cervical cancer elimination goals. We assessed the performance of cytology and high-risk HPV testing to detect cervical precancer, cervical intraepithelial neoplasia (CIN) grade 3 or worse (CIN3+) among women aged 30-64 years participating in the ESTAMPA study. Methods Women were screened with cytology and HPV across ESTAMPA study centres in Latin America. Screen-positives were referred to colposcopy with biopsy collection and treatment as needed. Those with no evident precancer were recalled at 18-months for a second HPV test to complete disease ascertainment. Performance indicators for cytology and HPV to detect CIN3+ were estimated. Findings 30,606 participants with available cytology and HPV results were included in the analysis. A total of 440 histologically confirmed CIN3s and 30 cancers were diagnosed. Cytology sensitivity for CIN3+ was 48.5% (95% CI: 44.0-53.0), whereas HPV testing had a sensitivity of 98.1% (95% CI: 96.3-96.7). Specificity was 96.5% (95% CI: 96.3-96.7) using cytology and 88.7% (95% CI: 88.3-89.0) with HPV. Performance estimates varied substantially by study centre for cytology (ranging from 32.1% to 87.5% for sensitivity and from 89.2% to 99.5% for specificity) while for HPV results were more consistent across sites (96.7%-100% and 83.6-90.8%, respectively). Interpretation The limited and highly variable sensitivity of cytology strongly supports transition to the more robust and reproducible HPV-based cervical screening to ensure progress towards global cervical cancer elimination targets in Latin America. Funding IARC/WHO, UNDP, HRP/WHO, NCI and local funders.
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Affiliation(s)
- Arianis Tatiana Ramírez
- Early Detection, Prevention & Infections Branch, International Agency for Research on Cancer, Lyon, France
| | - Joan Valls
- Early Detection, Prevention & Infections Branch, International Agency for Research on Cancer, Lyon, France
| | - Armando Baena
- Early Detection, Prevention & Infections Branch, International Agency for Research on Cancer, Lyon, France
| | - Freddy David Rojas
- Caja Costarricense de Seguro Social (CCSS), Región Pacífico Central, San Jose, Costa Rica
| | - Katherine Ramírez
- Caja Costarricense de Seguro Social (CCSS), Región Pacífico Central, San Jose, Costa Rica
| | - Rodrigo Álvarez
- Caja Costarricense de Seguro Social (CCSS), Región Pacífico Central, San Jose, Costa Rica
| | - Carmen Cristaldo
- Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | | | - Adrián Moreno
- Hospital Nacional Alejandro Posadas, Buenos Aires, Argentina
| | - Daysi Colque Reynaga
- Facultad de Medicina, Universidad Mayor, Real y Pontificia de San Francisco Xavier de Chuquisaca, Sucre, Bolivia
| | - Hans González Palma
- Facultad de Medicina, Universidad Mayor, Real y Pontificia de San Francisco Xavier de Chuquisaca, Sucre, Bolivia
| | | | - Diana Carolina Hernández
- Laboratorio de citología, IPS Universitaria, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | - Rosa Bardales
- Departamento Laboratorio Clínico y Anatomía Patológica, Hospital Nacional Dos de Mayo, Lima, Perú
| | - Lucia Cardinal
- Hospital de Clínicas, Jose de San Martín, Buenos Aires, Argentina
| | - Yuly Salgado
- Instituto Nacional de Cancerología, Bogotá, Colombia
| | | | - Emmanuel González
- Caja Costarricense de Seguro Social, Departamento de Patología, Hospital Dr. Enrique Baltodano Briceño, Guanacaste, Costa Rica
- Agencia Costarricense de Investigaciones Biomédicas (ACIB), Fundación Inciensa, Guanacaste, Costa Rica
| | - Diego Guillén
- Agencia Costarricense de Investigaciones Biomédicas (ACIB), Fundación Inciensa, Guanacaste, Costa Rica
- Caja Costarricense de Seguro Social, Departamento de Patología, Hospital Max Peralta, Cartago, Costa Rica
| | - Laura Fleider
- Hospital de Clínicas, Jose de San Martín, Buenos Aires, Argentina
| | - Silvio Tatti
- Hospital de Clínicas, Jose de San Martín, Buenos Aires, Argentina
| | | | - Gino Venegas
- Clínica Angloamericana, Lima, Perú
- Escuela de Medicina Humana, Universidad de Piura, Lima, Perú
| | | | - Marleny Valencia
- Laboratorio de citología, IPS Universitaria, Escuela de Microbiología, Universidad de Antioquia, Medellín, Colombia
| | | | - Carolina Terán
- Facultad de Medicina, Universidad Mayor, Real y Pontificia de San Francisco Xavier de Chuquisaca, Sucre, Bolivia
| | | | - Annabelle Ferrera
- Instituto de Infecciones en Microbiología, Universidad Nacional Autónoma de Honduras (UNAH), Tegucigalpa, Honduras
| | - Elena Kasamatsu
- Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Laura Mendoza
- Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, San Lorenzo, Paraguay
| | - Alejandro Calderon
- Caja Costarricense de Seguro Social (CCSS), Región Pacífico Central, San Jose, Costa Rica
| | - Silvana Luciani
- Pan American Health Organization (PAHO), Washington, DC, USA
| | - Nathalie Broutet
- Department of Sexual and Reproductive Health and Research (SRH), World Health Organization, Geneva, Switzerland
| | - Teresa Darragh
- Department of Pathology, University of California, San Francisco, CA, USA
| | - Maribel Almonte
- Early Detection, Prevention & Infections Branch, International Agency for Research on Cancer, Lyon, France
- Department of Sexual and Reproductive Health and Research (SRH), World Health Organization, Geneva, Switzerland
| | - Rolando Herrero
- Early Detection, Prevention & Infections Branch, International Agency for Research on Cancer, Lyon, France
- Agencia Costarricense de Investigaciones Biomédicas (ACIB), Fundación Inciensa, Guanacaste, Costa Rica
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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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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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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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Cifuentes L, González M, Pinto-Irish K, Álvarez R, Coba de la Peña T, Ostria-Gallardo E, Franck N, Fischer S, Barros G, Castro C, Ortiz J, Sanhueza C, Del-Saz NF, Bascunan-Godoy L, Castro PA. Metabolic imprint induced by seed halo-priming promotes a differential physiological performance in two contrasting quinoa ecotypes. Front Plant Sci 2023; 13:1034788. [PMID: 36865946 PMCID: PMC9971973 DOI: 10.3389/fpls.2022.1034788] [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: 09/02/2022] [Accepted: 12/14/2022] [Indexed: 06/18/2023]
Abstract
"Memory imprint" refers to the process when prior exposure to stress prepares the plant for subsequent stress episodes. Seed priming is a strategy to change the performance of seedlings to cope with stress; however, mechanisms associated with the metabolic response are fragmentary. Salinity is one of the major abiotic stresses that affect crop production in arid and semiarid areas. Chenopodium quinoa Willd. (Amaranthaceae) is a promising crop to sustain food security and possesses a wide genetic diversity of salinity tolerance. To elucidate if the metabolic memory induced by seed halo-priming (HP) differs among contrasting saline tolerance plants, seeds of two ecotypes of Quinoa (Socaire from Atacama Salar, and BO78 from Chilean Coastal/lowlands) were treated with a saline solution and then germinated and grown under different saline conditions. The seed HP showed a more positive impact on the sensitive ecotype during germination and promoted changes in the metabolomic profile in both ecotypes, including a reduction in carbohydrates (starch) and organic acids (citric and succinic acid), and an increase in antioxidants (ascorbic acid and α-tocopherol) and related metabolites. These changes were linked to a further reduced level of oxidative markers (methionine sulfoxide and malondialdehyde), allowing improvements in the energy use in photosystem II under saline conditions in the salt-sensitive ecotype. In view of these results, we conclude that seed HP prompts a "metabolic imprint" related to ROS scavenger at the thylakoid level, improving further the physiological performance of the most sensitive ecotype.
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Affiliation(s)
| | - Máximo González
- Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
| | - Katherine Pinto-Irish
- Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
| | - Rodrigo Álvarez
- Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
| | - Teodoro Coba de la Peña
- Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
| | - Enrique Ostria-Gallardo
- Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
| | - Nicolás Franck
- Centro de Estudios en Zonas Áridas (CEZA), Facultad de Ciencias Agronómicas, Universidad de Chile, Coquimbo, Chile
| | - Susana Fischer
- Laboratorio de Fisiología Vegetal, Departamento de Producción vegetal Facultad de Agronomía, Universidad de Concepción, Concepción, Chile
| | - Gabriel Barros
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Catalina Castro
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - José Ortiz
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Carolina Sanhueza
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Néstor Fernández Del-Saz
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Luisa Bascunan-Godoy
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Patricio A. Castro
- Departamento de Fisiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
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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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9
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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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Álvarez-Quintana J, Ordóñez A, García-Ordiales E, Álvarez R. Surface Microanalysis and Sequential Chemical Extraction as Tools for Reliable Environmental Mobility Assessment of Sb and Other Metals. IJERPH 2022; 19:ijerph19159609. [PMID: 35954966 PMCID: PMC9368369 DOI: 10.3390/ijerph19159609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 07/29/2022] [Accepted: 08/02/2022] [Indexed: 11/16/2022]
Abstract
Sequential extraction procedures (SEPs) are widely used in environmental studies to infer the chemical and/or mineralogical forms of pollutants of concern in soils and sediments. Although there is no general agreement among the scientific community, these methods have shown some limitations, especially those with a lack of objectivity in their interpretation. In this work, a soil sampling campaign was carried out in an area affected by an abandoned Sb mine. Samples (0–15 cm) were carefully prepared and analyzed by an SEP. They were also studied by conventional mineralogical methods (optical and electronic microscopy, both scanning and transmission, with a coupled energy dispersive X-ray (EDX) spectrometer). When comparing the results obtained from both techniques, some discrepancies are highlighted, with As, Cu, Pb, Sb and Zn as elements of concern. For Sb, Cu, Pb and As the predominant fraction (excluding the residual one) is that associated with organic matter (from 8.54 for Sb to 18.90% for Cu). The fractions of pollutants linked to Fe and/or Mn oxides are quantitatively important for As, Pb and Zn (6.46%, 12.05% and 7.43%, respectively) and almost negligible for Cu and Sb. On the contrary, analyses carried out by EDX at a grain scale pointed out that no detectable quantities of the elements of concern were present on the surface of the organic particles. Sb and Pb were always detectable in Fe oxides (up to 1.84 and 5.76%, respectively). Regarding the role of the clayey fraction, the only disagreement between the employed SEP and the microanalysis is in relation to As. Arsenic bound to clay minerals was found to be an order of magnitude lower than As associated with Fe oxides (0.56% and 6.46%, respectively); in contrast, EDX microanalyses showed similar As contents in both groups. Given the objectiveness of EDX microanalysis, these differences should be considered inaccuracies in the interpretation of the sequential extraction results.
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11
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Sanz-Prada L, Garcia-Ordiales E, Flor-Blanco G, Roqueñí N, Álvarez R. Determination of heavy metal baseline levels and threshold values on marine sediments in the Bay of Biscay. J Environ Manage 2022; 303:114250. [PMID: 34896855 DOI: 10.1016/j.jenvman.2021.114250] [Citation(s) in RCA: 2] [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] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 11/23/2021] [Accepted: 12/04/2021] [Indexed: 06/14/2023]
Abstract
Several international institutions have defined background or baseline levels to assess heavy metal concentrations on marine sediments in order to use these values as a reference for sediment quality indices. This criterion for marine sediment quality is applied to evaluate the potential risk of pollutants in aquatic ecosystems. However, those values were established using samples collected in large areas which present specific geochemical conditions. Then there may be a lack of accuracy in the results when using these parameters in other areas. In this context, 15 sediment cores (8 cm diameter; 2 m length) were recovered along the 400 km Asturian coastline, which is an area with representative lithological conditions for the Bay of Biscay, to determine more precise baseline levels for marine sediments from the Bay of Biscay. An evaluation of statistical and empirical methods was done to determine which method delivers the best results. Statistical methods such as mean±2SD and median±2* Median Absolut Deviation (MAD) are strongly influenced by outliers and data distributions which make these approaches less robust. Graphic techniques such as Cumulative Distribution Function (CDF) avoid the problems that asymmetrical data distributions may cause but introduce a certain level of subjectivity in the results due to the baseline values obtained depending on the researcher's experience. Finally, the Probability Curve (CP) method solves issues which may occur when using other techniques and allows one to establish baseline levels based on different percentiles. Regarding the features of the data analysed in this study, the baselines obtained via the CP method with the 95th percentile appear to be the most accurate for the Bay of Biscay. A wide variation has been found between the new baseline values and other international and national levels. Disparity between those levels and the baselines obtained in this study can be generated by granulometric and geological factors. The notable increase in Hg baseline values with respect to OSPAR Background Concentration values (BCs) (0.05 μg g-1 and 0.6 μg g-1 respectively) and the huge different with CEDEX levels and new threshold levels (0.35 μg g-1 and 1.2 μg g-1 respectively) emphasised the relevance of defining specific baselines and threshold levels, as the ones obtained in this study, not only to obtain more precise criteria for marine sediment quality to be used in environmental assessments, but also to propose new threshold levels for the evaluation of dredged material before dumping into ocean sites.
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Affiliation(s)
- Lorena Sanz-Prada
- ISYMA Research Group, Mining, Energy and Materials Engineering School, University of Oviedo, Oviedo, 33004, Spain.
| | - Efrén Garcia-Ordiales
- ISYMA Research Group, Mining, Energy and Materials Engineering School, University of Oviedo, Oviedo, 33004, Spain
| | | | - Nieves Roqueñí
- ISYMA Research Group, Mining, Energy and Materials Engineering School, University of Oviedo, Oviedo, 33004, Spain
| | - Rodrigo Álvarez
- ISYMA Research Group, Mining, Energy and Materials Engineering School, University of Oviedo, Oviedo, 33004, Spain
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12
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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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Álvarez H, Domínguez G, Ordóñez A, Menéndez J, Álvarez R, Loredo J. Mine Water for the Generation and Storage of Renewable Energy: A Hybrid Hydro-Wind System. Int J Environ Res Public Health 2021; 18:ijerph18136758. [PMID: 34201766 PMCID: PMC8268712 DOI: 10.3390/ijerph18136758] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/11/2021] [Accepted: 06/21/2021] [Indexed: 11/29/2022]
Abstract
Mine water is normally considered as waste that has to be managed. However, new applications are increasingly being sought for the water that floods mining voids, especially in relation to its use as an energy resource. The worldwide energy market, within the current transition framework, is searching for creative approaches to produce and store clean energy. In particular, underground pumped hydroelectric energy storage systems (UPHS) constitute efficient and flexible alternatives to deal with intermittent renewable energy sources. In this work, a UPHS is designed using the mine water and the voids of a closed coal mine in Asturias (North-west Spain) as a lower reservoir. Moreover, this system is combined with a wind energy generation facility and the efficiency of the hybrid system is evaluated. With an investment cost of EUR 193 M, a 40 MW UPHES joined to a 60 MW wind farm would generate benefits of about EUR 54 M in 40 years. The reduction in CO2 emissions (29,000 equivalent tons per year) and the social benefits in a traditional mining area are other intangible advantages of this system.
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Affiliation(s)
- Héctor Álvarez
- Department of Mining Exploitation and Prospecting, School of Mining, Energy and Materials Engineering, University of Oviedo, 33004 Oviedo, Spain; (H.Á.); (R.Á.); (J.L.)
| | | | - Almudena Ordóñez
- Department of Mining Exploitation and Prospecting, School of Mining, Energy and Materials Engineering, University of Oviedo, 33004 Oviedo, Spain; (H.Á.); (R.Á.); (J.L.)
- Correspondence: ; Tel.: +34-98-510-4275
| | | | - Rodrigo Álvarez
- Department of Mining Exploitation and Prospecting, School of Mining, Energy and Materials Engineering, University of Oviedo, 33004 Oviedo, Spain; (H.Á.); (R.Á.); (J.L.)
| | - Jorge Loredo
- Department of Mining Exploitation and Prospecting, School of Mining, Energy and Materials Engineering, University of Oviedo, 33004 Oviedo, Spain; (H.Á.); (R.Á.); (J.L.)
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14
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Higueras PL, Jiménez-Ballesta R, Esbrí JM, García-Giménez R, García-Noguero EM, Álvarez R, Peco JD, García-Noguero C, Campos JA. Occurrence and environmental constraints of gray monazite in red soils from the Campo de Montiel area (SW Ciudad Real province, south central Spain). Environ Sci Pollut Res Int 2021; 28:4573-4584. [PMID: 32946058 DOI: 10.1007/s11356-020-10827-8] [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: 05/06/2020] [Accepted: 09/13/2020] [Indexed: 06/11/2023]
Abstract
Monazite ((Ce, La, Nd, Th) PO4) is a rare and strategic mineral that occurs naturally as an accessory and minor mineral in diverse igneous and metamorphic rocks. This mineral does not frequently form mineable ore deposits and it has different typologies, including those formed by endogenous processes (generally "yellow monazite" mineralizations) and those formed by exogenous processes ("gray monazite" mineralizations). The mineral is an important ore of Rare Earth Elements (REEs), which have been identified by the European Union as critical raw materials. Monazite can be considered a weathering-resistant mineral, and the mobility of the REE and associated elements is low. The study reported here concerns a mineralogical and geochemical assessment of the occurrence and risks associated with the presence of concentrations of monazite in a typical, well-developed, and representative red Mediterranean soil, in order to establish the associated risk with their future mining. The results confirmed that monazite ore is particularly poor in radioactive elements, and it is concentrated in the most surficial soil horizons. The chemical mobility of REEs present in the soil, as assessed by selective extraction with ammonium acetate in acidic media, follows the order Y > Dy > U > Tb > Gd > Eu > Sm > La > Th > Ce. The mobility of REEs contained in monazite proved to be higher than that of the REE compounds in the upper horizons of the soil profile suggesting the immobilization in other REE-containing minerals, while light REEs show lower mobility rates than heavy REEs, due to an immobilization of LREE by sorption with iron oxy-hydroxides. Further studies are required in order to obtain better speciation data for REEs in soils aimed to identify soluble and insoluble compounds.
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Affiliation(s)
- Pablo León Higueras
- Instituto de Geología Aplicada, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400, Almadén, Ciudad Real, Spain.
| | - Raimundo Jiménez-Ballesta
- Departamento de Geología y Geoquímica, Facultad de Ciencias, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - José Maria Esbrí
- Instituto de Geología Aplicada, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400, Almadén, Ciudad Real, Spain
| | - Rosario García-Giménez
- Departamento de Geología y Geoquímica, Facultad de Ciencias, Universidad Autónoma de Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - Eva María García-Noguero
- Instituto de Geología Aplicada, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400, Almadén, Ciudad Real, Spain
| | - Rodrigo Álvarez
- Departamento de Explotación y Prospección de Minas, Escuela de Ingeniería de Minas, Energía y Materiales, Universidad de Oviedo, C/Independencia, 13, 33004, Oviedo, Spain
| | - Jesús Daniel Peco
- ETS Ingenieros Agrónomos de Ciudad Real, Instituto de Geología Aplicada, UCLM, Ronda de Calatrava s/n, 13003, Ciudad Real, Spain
| | - Carolina García-Noguero
- Instituto de Geología Aplicada, Universidad de Castilla-La Mancha, Pl. Manuel Meca 1, 13400, Almadén, Ciudad Real, Spain
| | - Juan Antonio Campos
- ETS Ingenieros Agrónomos de Ciudad Real, Instituto de Geología Aplicada, UCLM, Ronda de Calatrava s/n, 13003, Ciudad Real, Spain
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15
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Álvarez-Quintana J, Álvarez R, Ordóñez A. Arsenic in Soils Affected by Mining: Microscopic Studies vs. Sequential Chemical Extraction. Int J Environ Res Public Health 2020; 17:ijerph17228426. [PMID: 33202531 PMCID: PMC7697551 DOI: 10.3390/ijerph17228426] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/04/2020] [Accepted: 11/11/2020] [Indexed: 11/16/2022]
Abstract
Soil samples from three inactive mines, corresponding to different Arsenic-bearing mineralization types, were collected and studied. The aim was to determine the influence of mine wastes mineralogy/geochemistry and texture in As mobility and to compare results from sequential chemical extraction and microscopic techniques (optical and electron) at a grain scale. Arsenic in soils is found mainly associated to the residual fraction, indicating that mechanical As dispersion is mainly responsible for As soil pollution. The use of objective microscopic techniques (i.e., Scanning Electron Microscopy-Energy Dispersive Spectroscopy -SEM-EDS-, High Resolution Transmission Electron Microscopy -HR-TEM) has pointed out that the selected sequential extraction method overestimates the role of Mn amorphous oxy-hydroxides and organic matter in As retention while underestimating the mechanism of As adsorption onto clay particle surfaces.
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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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17
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Rizzato Lede DA, Pedernera FA, López E, Speranza CD, Maid JJ, Gassino F, Argibay O, Castiglione R, Pujadas G, Gonzalez Alvaredo E, Álvarez R, Markiewicz MB, Alegre F, Ferrareis L, Rolandi F, Ayala F, Abadie DA, Cejas CA, López Osornio A, Rubinstein A. Mi Argentina/Mi Salud: The Argentinian Citizen Digital Health Portal. Stud Health Technol Inform 2020; 270:1011-1015. [PMID: 32570534 DOI: 10.3233/shti200314] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The Ministry of Health (MoH) stated the National Digital Health Strategy 2018-2024 in order to establish the conceptual guidelines for the design and development of interoperable health information systems. It included the creation of a National Digital Health Network, and a Citizen Health Portal to inform and empower patients about their rights. For instance, the Digital Vaccination Card is already available and has equal legal validity as its paper version. The platform also works as a personal privacy manager, to configure the consent for Health Information Exchange through the network, or to check the access logs. This paper outlines the implementation experience of this powerful tool at a national level.
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Affiliation(s)
| | | | | | | | | | - Fernando Gassino
- Ministry of Health, Argentina
- Hospital Italiano de Buenos Aires, Argentina
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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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Martínez R, Bernal C, Álvarez R, Concha C, Araya F, Cabrera R, Dhoke GV, Davari MD. Deletion and Randomization of Structurally Variable Regions in B. subtilis Lipase A (BSLA) Alter Its Stability and Hydrolytic Performance Against Long Chain Fatty Acid Esters. Int J Mol Sci 2020; 21:ijms21061990. [PMID: 32183336 PMCID: PMC7139672 DOI: 10.3390/ijms21061990] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 12/16/2022] Open
Abstract
The continuous search for novel enzyme backbones and the engineering of already well studied enzymes for biotechnological applications has become an increasing challenge, especially by the increasing potential diversity space provided by directed enzyme evolution approaches and the demands of experimental data generated by rational design of enzymes. In this work, we propose a semi-rational mutational strategy focused on introducing diversity in structurally variable regions in enzymes. The identified sequences are subjected to a progressive deletion of two amino acids and the joining residues are subjected to saturation mutagenesis using NNK degenerate codons. This strategy offers a novel library diversity approach while simultaneously decreasing enzyme size in the variable regions. In this way, we intend to identify and reduce variable regions found in enzymes, probably resulting from neutral drift evolution, and simultaneously studying the functional effect of said regions. This strategy was applied to Bacillus. subtilis lipase A (BSLA), by selecting and deleting six variable enzyme regions (named regions 1 to 6) by the deletion of two amino acids and additionally randomizing the joining amino acid residues. After screening, no active variants were found in libraries 1% and 4%, 15% active variants were found in libraries 2% and 3%, and 25% for libraries 5 and 6 (n = 3000 per library, activity detected using tributyrin agar plates). Active variants were assessed for activity in microtiter plate assay (pNP-butyrate), thermal stability, substrate preference (pNP-butyrate, -palmitate), and compared to wildtype BSLA. From these analyses, variant P5F3 (F41L-ΔW42-ΔD43-K44P), from library 3 was identified, showing increased activity towards longer chain p-nitrophenyl fatty acid esters, when compared to BSLA. This study allowed to propose the targeted region 3 (positions 40-46) as a potential modulator for substrate specificity (fatty acid chain length) in BSLA, which can be further studied to increase its substrate spectrum and selectivity. Additionally, this variant showed a decreased thermal resistance but interestingly, higher isopropanol and Triton X-100 resistance. This deletion-randomization strategy could help to expand and explore sequence diversity, even in already well studied and characterized enzyme backbones such as BSLA. In addition, this strategy can contribute to investigate and identify important non-conserved regions in classic and novel enzymes, as well as generating novel biocatalysts with increased performance in specific processes, such as enzyme immobilization.
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Affiliation(s)
- Ronny Martínez
- Departamento de Ingeniería en Alimentos, Instituto de Investigación Multidisciplinaria en Ciencia y Tecnología, Universidad de La Serena, Av. Raúl Bitrán 1305, La Serena 1720010, Chile; (C.B.); (R.Á.); (C.C.)
- Correspondence: ; Tel.: +56-51-2334661; Fax: +56-51-2204446
| | - Claudia Bernal
- Departamento de Ingeniería en Alimentos, Instituto de Investigación Multidisciplinaria en Ciencia y Tecnología, Universidad de La Serena, Av. Raúl Bitrán 1305, La Serena 1720010, Chile; (C.B.); (R.Á.); (C.C.)
| | - Rodrigo Álvarez
- Departamento de Ingeniería en Alimentos, Instituto de Investigación Multidisciplinaria en Ciencia y Tecnología, Universidad de La Serena, Av. Raúl Bitrán 1305, La Serena 1720010, Chile; (C.B.); (R.Á.); (C.C.)
- Escuela de Tecnología Médica, Facultad de Salud, Sede La Serena, Universidad Santo Tomás, La Serena 1710172, Chile
| | - Christopher Concha
- Departamento de Ingeniería en Alimentos, Instituto de Investigación Multidisciplinaria en Ciencia y Tecnología, Universidad de La Serena, Av. Raúl Bitrán 1305, La Serena 1720010, Chile; (C.B.); (R.Á.); (C.C.)
| | - Fernando Araya
- Laboratorio de Bioquímica y Biología Molecular, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago 7800003, Chile; (F.A.); (R.C.)
| | - Ricardo Cabrera
- Laboratorio de Bioquímica y Biología Molecular, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago 7800003, Chile; (F.A.); (R.C.)
| | - Gaurao V. Dhoke
- Lehrstuhl für Biotechnologie, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany; (G.V.D.); (M.D.D.)
| | - Mehdi D. Davari
- Lehrstuhl für Biotechnologie, RWTH Aachen University, Worringerweg 3, 52074 Aachen, Germany; (G.V.D.); (M.D.D.)
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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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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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22
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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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23
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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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24
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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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25
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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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26
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Bascuñán-Godoy L, Sanhueza C, Pinto K, Cifuentes L, Reguera M, Briones V, Zurita-Silva A, Álvarez R, Morales A, Silva H. Nitrogen physiology of contrasting genotypes of Chenopodium quinoa Willd. (Amaranthaceae). Sci Rep 2018; 8:17524. [PMID: 30504781 PMCID: PMC6269519 DOI: 10.1038/s41598-018-34656-5] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 10/17/2018] [Indexed: 12/28/2022] Open
Abstract
Quinoa has been highlighted as a promising crop to sustain food security. The selection of physiological traits that allow identification genotypes with high Nitrogen use efficiency (NUE) is a key factor to increase Quinoa cultivation. In order to unveil the underpinning mechanisms for N-stress tolerance in Quinoa, three genotypes with similar phenology, but different NUE were developed under high (HN) or low (LN) nitrogen conditions. N metabolism processes and photosynthetic performance were studied after anthesis and in correlation with productivity to identify principal traits related to NUE. We found that protein content, net photosynthesis and leaf dry-mass were determinant attributes for yield at both HN and LN conditions. Contrastingly, the enhancement of N related metabolites (\documentclass[12pt]{minimal}
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\begin{document}$${{\rm{NH}}}_{4}^{+}$$\end{document}NH4+, including an increment of glutamine synthetase activity and up-regulation of CqAMT1,1 transporter expression in leaves, were negatively correlated with grain yield at both N conditions. Biochemical aspects of photosynthesis and root biomass were traits exclusively associated with grain yield at LN. The impact of N supply on seed quality is discussed. These results provide new insights towards the understanding the N metabolism of Quinoa.
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Affiliation(s)
- Luisa Bascuñán-Godoy
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla, 160-C, Concepción, Chile. .,Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, La Serena, Chile. .,Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile.
| | - Carolina Sanhueza
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Casilla, 160-C, Concepción, Chile
| | - Katherine Pinto
- Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
| | - Leonardo Cifuentes
- Laboratorio de Fisiología Vegetal, Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
| | - María Reguera
- Departamento de Biología, Universidad Autónoma de Madrid, Madrid, Spain
| | - Vilbett Briones
- Departamento de Ingeniería en Alimentos, Universidad de La Serena, La Serena, Chile
| | - Andrés Zurita-Silva
- Instituto de Investigaciones Agropecuarias, Centro de Investigación Intihuasi, La Serena, Chile
| | - Rodrigo Álvarez
- Escuela de Tecnología Médica, Facultad de Salud, Sede La Serena, Universidad Santo Tomas, La Serena, Chile
| | - Andrea Morales
- Escuela de Tecnología Médica, Facultad de Salud, Sede La Serena, Universidad Santo Tomas, La Serena, Chile
| | - Herman Silva
- Laboratorio de Genómica Funcional y Bioinformática, Departamento de Producción Agrícola, Facultad de Ciencias Agronómicas, Universidad de Chile, Santiago, Chile
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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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Bascuñán-Godoy L, Sanhueza C, Hernández CE, Cifuentes L, Pinto K, Álvarez R, González-Teuber M, Bravo LA. Nitrogen Supply Affects Photosynthesis and Photoprotective Attributes During Drought-Induced Senescence in Quinoa. Front Plant Sci 2018; 9:994. [PMID: 30105038 PMCID: PMC6077362 DOI: 10.3389/fpls.2018.00994] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 06/19/2018] [Indexed: 05/29/2023]
Abstract
Drought during senescence has become more common in Mediterranean climates in recent years. Chenopodium quinoa Willd has been identified as tolerant to poor soil conditions and drought. Previous observations have found that sufficient nitrogen (N) supply mitigates yield losses under terminal drought conditions. However, there is no understanding of the mechanisms behind this effect. We hypothesized that N up-regulates both photosynthetic and photoprotective elements during drought-induced senescence, alleviating the negative impact of drought on yield. The role of N supply and terminal drought on photoprotection was tested using three Chilean quinoa genotypes from different climatic zones: Faro, UdeC9, and BO78. Plants were grown under high nitrogen (HN) or low nitrogen (LN) conditions and subjected to terminal drought at the onset of senescence. Photosynthetic and photochemical and non-photochemical processes were evaluated at both the onset of drought and after 15 days of drought conditions. N supplementation modified most of the physiological parameters related to photochemical dissipation of energy, photosynthesis, and yield in quinoa. In contrast, water restriction did not affect photosynthesis in quinoa, and its effect on yield was dependent on the genotype. A significant interaction N × G was observed in photosynthesis, relative water content, protein content, Fv/Fm, and chlorophylls. In general, Faro was able to maintain higher levels of these attributes under LN conditions than UdeC9 and BO78. In addition, the interacting effects of N × W regulated the level of most pigments in quinoa as well as the photoprotective induction of non-photochemical quenching (NPQ) during senescence. During terminal drought at LN conditions, Faro presented a larger NPQ induction under drought conditions than UdeC9 and BO78, which was supported by a larger zeaxanthin content and de-epoxidation state of the xanthophyll pool. Interestingly, BO78 did not induce NPQ in response to drought-induced senescence but instead enhanced the content of betacyanins. This response needs to be researched in future works. Finally, we observed that LN supply reduced the correlationship between the de-epoxidation state of the xanthophyll cycle and NPQ. This could be an indication that N supply not only compromised the capacity for photosynthetic performance in quinoa plants, but also affected the plasticity of thermal dissipation, restricting further changes during drought-induced senescence.
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Affiliation(s)
- Luisa Bascuñán-Godoy
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Carolina Sanhueza
- Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - Cristián E. Hernández
- Laboratorio de Ecología Evolutiva y Filoinformática, Departamento de Zoología, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | | | - Katherine Pinto
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile
| | - Rodrigo Álvarez
- Escuela de Tecnología Médica, Facultad de Salud, Sede La Serena, Universidad Santo Tomas, La Serena, Chile
| | - Marcia González-Teuber
- Laboratorio de Química Ecológica, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
- Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, La Serena, Chile
| | - León A. Bravo
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Agroindustria, Departamento de Ciencias Agronómicas y Recursos Naturales, Facultad de Ciencias Agropecuarias y Forestales, Center of Plant, Soil Interaction and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco, Chile
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29
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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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30
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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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31
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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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32
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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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33
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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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Reguera M, Conesa CM, Gil-Gómez A, Haros CM, Pérez-Casas MÁ, Briones-Labarca V, Bolaños L, Bonilla I, Álvarez R, Pinto K, Mujica Á, Bascuñán-Godoy L. The impact of different agroecological conditions on the nutritional composition of quinoa seeds. PeerJ 2018; 6:e4442. [PMID: 29576944 PMCID: PMC5857176 DOI: 10.7717/peerj.4442] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 02/12/2018] [Indexed: 12/30/2022] Open
Abstract
Quinoa cultivation has been expanded around the world in the last decade and is considered an exceptional crop with the potential of contributing to food security worldwide. The exceptional nutritional value of quinoa seeds relies on their high protein content, their amino acid profile that includes a good balance of essential amino acids, the mineral composition and the presence of antioxidants and other important nutrients such as fiber or vitamins. Although several studies have pointed to the influence of different environmental stresses in certain nutritional components little attention has been paid to the effect of the agroecological context on the nutritional properties of the seeds what may strongly impact on the consumer food’s quality. Thus, aiming to evaluate the effect of the agroecological conditions on the nutritional profile of quinoa seeds we analyzed three quinoa cultivars (Salcedo-INIA, Titicaca and Regalona) at different locations (Spain, Peru and Chile). The results revealed that several nutritional parameters such as the amino acid profile, the protein content, the mineral composition and the phytate amount in the seeds depend on the location and cultivar while other parameters such as saponin or fiber were more stable across locations. Our results support the notion that nutritional characteristics of seeds may be determined by seed’s origin and further analysis are needed to define the exact mechanisms that control the changes in the seeds nutritional properties.
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Affiliation(s)
- María Reguera
- Departamento de Biología, Universidad Autónoma de Madrid, Madrid, Spain.,Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM)-Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid, Madrid, Spain
| | | | | | - Claudia Mónika Haros
- Instituto de Agroquímica y Tecnología de los Alimentos, Paterna, Valencia, Spain
| | | | - Vilbett Briones-Labarca
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile.,Food Engineering Department, Universidad de La Serena, La Serena, Chile.,Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, Chile
| | - Luis Bolaños
- Departamento de Biología, Universidad Autónoma de Madrid, Madrid, Spain
| | - Ildefonso Bonilla
- Departamento de Biología, Universidad Autónoma de Madrid, Madrid, Spain
| | - Rodrigo Álvarez
- Food Engineering Department, Universidad de La Serena, La Serena, Chile
| | - Katherine Pinto
- Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, Chile
| | | | - Luisa Bascuñán-Godoy
- Centro de Estudios Avanzados en Zonas Áridas (CEAZA), La Serena, Chile.,Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, Chile.,Laboratorio de Fisiología Vegetal, Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
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35
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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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36
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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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37
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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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38
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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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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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40
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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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