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Andler R, González-Arancibia F, Vilos C, Sepulveda-Verdugo R, Castro R, Mamani M, Valdés C, Arto-Paz F, Díaz-Barrera A, Martínez I. Production of poly-3-hydroxybutyrate (PHB) nanoparticles using grape residues as the sole carbon source. Int J Biol Macromol 2024; 261:129649. [PMID: 38266847 DOI: 10.1016/j.ijbiomac.2024.129649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 01/26/2024]
Abstract
The production of poly-3-hydroxybutyrate (PHB) on an industrial scale remains a major challenge due to its higher production cost compared to petroleum-based plastics. As a result, it is necessary to develop efficient fermentative processes using low-cost substrates and identify high-value-added applications where biodegradability and biocompatibility properties are of fundamental importance. In this study, grape residues, mainly grape skins, were used as the sole carbon source in Azotobacter vinelandii OP cultures for PHB production and subsequent nanoparticle synthesis based on the extracted polymer. The grape residue pretreatment showed a high rate of conversion into reducing sugars (fructose and glucose), achieving up to 43.3 % w w-1 without the use of acid or external heat. The cultures were grown in shake flasks, obtaining a biomass concentration of 2.9 g L-1 and a PHB accumulation of up to 37.7 % w w-1. PHB was characterized using techniques such as Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). The formation of emulsified PHB nanoparticles showed high stability, with a particle size between 210 and 240 nm and a zeta potential between -12 and - 15 mV over 72 h. Owing to these properties, the produced PHB nanoparticles hold significant potential for applications in drug delivery.
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Affiliation(s)
- R Andler
- Escuela de Ingeniería en Biotecnología, Centro de Biotecnología de los Recursos Naturales (Cenbio), Universidad Católica del Maule, Talca, Chile.
| | - F González-Arancibia
- Escuela de Ingeniería en Biotecnología, Centro de Biotecnología de los Recursos Naturales (Cenbio), Universidad Católica del Maule, Talca, Chile
| | - C Vilos
- Laboratory of Nanomedicine and Targeted Delivery, School of Medicine, Universidad de Talca, Talca 3460000, Chile; Center for Nanomedicine, Diagnostic & Drug Development (cND3), Universidad de Talca, Talca 3460000, Chile; Center for The Development of Nanoscience & Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - R Sepulveda-Verdugo
- Laboratory of Nanomedicine and Targeted Delivery, School of Medicine, Universidad de Talca, Talca 3460000, Chile; Center for Nanomedicine, Diagnostic & Drug Development (cND3), Universidad de Talca, Talca 3460000, Chile; Center for The Development of Nanoscience & Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Santiago 8350709, Chile
| | - R Castro
- Multidisciplinary Agroindustry Research Laboratory, Carrera de Ingeniería en Construcción, Instituto de Ciencias Químicas Aplicadas, Universidad Autónoma de Chile, Talca, Chile
| | - M Mamani
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM), Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Chile
| | - C Valdés
- Centro de Investigación de Estudios Avanzados del Maule (CIEAM), Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Chile
| | - F Arto-Paz
- Escuela de Ingeniería en Biotecnología, Centro de Biotecnología de los Recursos Naturales (Cenbio), Universidad Católica del Maule, Talca, Chile
| | - A Díaz-Barrera
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - I Martínez
- Department of Chemical Engineering, Biotechnology and Materials, Centre for Biotechnology and Bioengineering (CeBiB), Universidad de Chile, Santiago, Chile
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Tenorio-Alfonso A, Vázquez Ramos E, Martínez I, Ambrosi M, Raudino M. Assessment of the structures contribution (crystalline and mesophases) and mechanical properties of polycaprolactone/pluronic blends. J Mech Behav Biomed Mater 2023; 139:105668. [PMID: 36638636 DOI: 10.1016/j.jmbbm.2023.105668] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 01/08/2023]
Abstract
Films of biodegradable blends of polycaprolactone (PCL) and Pluronics F68 and F127 were manufactured by an industrial thermo-mechanical process to be applied as potential delivery systems. The effects of Pluronics on the structure (mesophase organization), and thermal and mechanical properties of polycaprolactone were investigated using differential scanning calorimetry (DSC), small-angle X-ray scattering (SAXS), X-ray diffraction (XRD), polarized optical microscopy (POM) and tensile mechanical tests. The addition of Pluronics affected the crystallization process by changing the relative amounts of crystalline, amorphous, and meso- (condis + plastic) phases. The melting transition and XRD profiles were deconvoluted to assess the individual contribution of the different crystal morphologies. Furthermore, it was found that the mechanical properties of the blends depended on the ratio and type of Pluronic. Thus, Pluronic F127 showed a larger mesophase content than its F68 counterpart with PCL and blends with enhanced ductility.
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Affiliation(s)
- A Tenorio-Alfonso
- Pro(2)TecS-Chemical Product and Process Technology Research Centre, University of Huelva, 21071, Huelva, Spain
| | - E Vázquez Ramos
- Pro(2)TecS-Chemical Product and Process Technology Research Centre, University of Huelva, 21071, Huelva, Spain
| | - I Martínez
- Pro(2)TecS-Chemical Product and Process Technology Research Centre, University of Huelva, 21071, Huelva, Spain.
| | - M Ambrosi
- Department of Chemistry and CSGI, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Florence, Italy
| | - M Raudino
- Department of Chemistry and CSGI, University of Florence, Via della Lastruccia 3-13, 50019, Sesto Fiorentino, Florence, Italy
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Cabrera Quercini I, González-Ramírez A, García Tormo J, Martínez I. Selección de indicadores de éxito en balonmano de élite a través de árboles de decisión. RIMCAFD 2022. [DOI: 10.15366/rimcafd2022.88.003] [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] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
El objetivo fue analizar los indicadores de éxito en el Campeonato Europeo de balonmano masculino utilizando árboles de decisión como modelos de inteligencia artificial. Se utilizó la metodología observacional. La muestra fue compuesta por 87 partidos de los Campeonatos de Europa masculinos de selecciones de balonmano 2016 y 2018. Como resultado más importante, el modelo identificó tres variables relevantes para alcanzar una precisión elevada en la predicción de resultados de balonmano. Se concluye que la utilización de estos modelos permite reducir ampliamente la complejidad en el análisis de los indicadores de éxito en balonmano.
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Andrés M, García MC, Fajardo A, Grau L, Pagespetit L, Plasencia V, Martínez I, Abadía C, Sanahuja A, Bella F. Nosocomial outbreak of COVID-19 in an internal medicine ward: Probable airborne transmission. Rev Clin Esp 2022; 222:578-583. [PMID: 35798645 PMCID: PMC9239913 DOI: 10.1016/j.rceng.2022.04.001] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 04/09/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVES Despite the increasing evidence supporting the importance of airborne transmission in SARS-CoV-2 infection, it has not been considered relevant in the vast majority of reported nosocomial outbreaks of COVID-19. The aim of this study is to describe a nosocomial outbreak of SARS-CoV-2 infection whose features suggest that aerosol transmission had an important role. METHODS This is a descriptive analysis of a nosocomial outbreak of SARS-CoV-2 infection in an internal medicine ward that occurred in December 2020. All cases were confirmed by a positive PCR test for SARS-CoV-2. RESULTS From December 5 to December 17, 21 patients and 44 healthcare workers (HCWs) developed a nosocomial SARS-CoV-2 infection. Fifty-one of the 65 cases (78.5%) were diagnosed between December 6 and 9. The attack rate in patients was 80.8%. Among HCWs, the attack rate was higher in those who had worked at least one full working day in the ward (56.3%) than in those who had occasionally been in the ward (25.8%; p = 0.005). Three days before the first positive case was detected, two extractor fans were found to be defective, affecting the ventilation of three rooms. Sixteen cases were asymptomatic, 48 cases had non-severe symptoms, and 2 cases required admission to the intensive care unit. All patients eventually recovered. CONCLUSION The high attack rate, the explosive nature of the outbreak, and the coincidence in time with the breakdown in air extractors in some rooms of the ward suggest that airborne transmission played a key role in the development of the outbreak.
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Affiliation(s)
- M. Andrés
- Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Terrassa (Barcelona), Spain,Corresponding author
| | - M.-C. García
- Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Terrassa (Barcelona), Spain
| | - A. Fajardo
- Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Terrassa (Barcelona), Spain
| | - L. Grau
- Equipo de Control de Infecciones, Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Terrassa (Barcelona), Spain
| | - L. Pagespetit
- Equipo de Control de Infecciones, Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Terrassa (Barcelona), Spain
| | - V. Plasencia
- Laboratorio de Microbiología, CATLAB, Viladecavalls (Barcelona), Spain
| | - I. Martínez
- Servicio de Prevención de Riesgos Laborales, Hospital de Terrassa (Consorci Sanitari de Terrassa), Terrassa (Barcelona), Spain
| | - C. Abadía
- Servicio de Salud Laboral, Hospital de Terrassa (Consorci Sanitari de Terrassa), Terrassa (Barcelona), Spain
| | - A. Sanahuja
- Departamento de Recursos Físicos, Hospital de Terrassa (Consorci Sanitari de Terrassa), Terrassa (Barcelona), Spain
| | - F. Bella
- Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Terrassa (Barcelona), Spain
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Andrés M, García MC, Fajardo A, Grau L, Pagespetit L, Plasencia V, Martínez I, Abadía C, Sanahuja A, Bella F. Brote nosocomial de COVID-19 en una planta de medicina interna: probable transmisión aérea. Rev Clin Esp 2022; 222:578-583. [PMID: 35541500 PMCID: PMC9072947 DOI: 10.1016/j.rce.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 04/09/2022] [Indexed: 11/28/2022]
Abstract
Antecedentes y objetivos A pesar de los datos cada vez mayores que respaldan la importancia de la transmisión aérea en la infección por el SARS-CoV-2, en la inmensa mayoría de los brotes nosocomiales descritos de COVID-19 no se ha considerado relevante. El objetivo de este estudio consiste en describir un brote nosocomial de infección por el SARS-CoV-2 cuyas características indican que la transmisión por aerosoles desempeñó un papel importante. Métodos Se trata de un análisis descriptivo de un brote nosocomial de infección por el SARS-CoV-2 en una planta de medicina interna que tuvo lugar en diciembre de 2020. Todos los casos se confirmaron mediante una PCR positiva para SARS-CoV-2. Resultados Entre el 5 y el 17 de diciembre, 21 pacientes y 44 profesionales sanitarios contrajeron una infección nosocomial por el SARS-CoV-2. De los 65 casos, 51 (78,5%) se diagnosticaron entre el 6 y el 9 de diciembre. La tasa de afectación en los pacientes fue del 80,8%. Entre los profesionales sanitarios, la tasa fue mayor en los que habían trabajado al menos una jornada laboral completa en la planta (56,3%) que en los que habían estado ocasionalmente en ella (25,8%; p = 0,005). Tres días antes de detectar el primer caso positivo se identificó una avería en 2 extractores de aire, que afectó a la ventilación de 3 habitaciones. Dieciséis casos cursaron de forma asintomática, 48 manifestaron síntomas leves y 2 precisaron ingreso en la unidad de cuidados intensivos. Todos los casos se recuperaron finalmente. Conclusiones La elevada tasa de afectación, la naturaleza explosiva del brote y la coincidencia en el tiempo con la avería de los extractores de aire en algunas habitaciones de la planta indican que la transmisión aérea desempeñó un papel fundamental en el desarrollo del brote.
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Affiliation(s)
- M Andrés
- Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Tarrassa (Barcelona), España
| | - M-C García
- Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Tarrassa (Barcelona), España
| | - A Fajardo
- Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Tarrassa (Barcelona), España
| | - L Grau
- Equipo de Control de Infecciones, Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa) , Tarrassa (Barcelona), España
| | - L Pagespetit
- Equipo de Control de Infecciones, Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa) , Tarrassa (Barcelona), España
| | - V Plasencia
- Laboratorio de Microbiología, CATLAB, Viladecavalls (Barcelona), España
| | - I Martínez
- Servicio de Prevención de Riesgos Laborales, Hospital de Terrassa (Consorci Sanitari de Terrassa) , Tarrassa (Barcelona), España
| | - C Abadía
- Servicio de Salud Laboral, Hospital de Terrassa (Consorci Sanitari de Terrassa) , Tarrassa (Barcelona), España
| | - A Sanahuja
- Departamento de Recursos Físicos, Hospital de Terrassa (Consorci Sanitari de Terrassa) , Tarrassa (Barcelona), España
| | - F Bella
- Unidad de Enfermedades Infecciosas, Servicio de Medicina Interna, Hospital de Terrassa (Consorci Sanitari de Terrassa), Tarrassa (Barcelona), España
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Diañez I, Gallegos C, Brito-de la Fuente E, Martínez I, Valencia C, Sánchez M, Franco J. Implementation of a novel continuous solid/liquid mixing accessory for 3D printing of dysphagia-oriented thickened fluids. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106900] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Pérez-Montero H, Godino O, Lozano A, Asiáin L, Martínez I, Sánchez JJ, de BlasFernández R, Fernández E, Stefanovic M, García N, Martínez J, Guedea F, Navarro-Martin A. Long-term outcomes of spinal SBRT. Is it important to select the treatment time? Clin Transl Oncol 2021; 24:276-287. [PMID: 34342817 DOI: 10.1007/s12094-021-02684-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 07/08/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE SBRT (stereotactic body radiation therapy) is widely used as a curative treatment in tumoral lesions and has become a fundamental tool for the treatment of spine metastasis. In this study, we present survival and toxicity outcomes of spine SBRT after a 2-year follow-up. METHODS/PATIENTS Data from spine SBRT treatments performed at our institution between March 2012 and February 2020 was collected. Medical records, including demographic, primary tumor, and treatment characteristics were reviewed. Patient follow-up included clinical evaluation, imaging, and blood tests. Toxicity was recorded according to CTCAE v4.0. RESULTS We analyzed 73 consecutive spine SBRT treatments in 60 patients. 39.7% of the cases had primary breast cancer and 23.3% had prostate cancer. Most cases (87.7%) were treated with a single SBRT fraction of 16 Gy. Median follow-up was 26.1 months (range 1.7-78.6), and 1- and 2-year overall survival (OS) rates were 96.9% and 84.2%, respectively. Local control (LC) rates at 1- and 2-years were 76.3% and 70.6%, respectively. Multivariate analysis identified histology as a prognostic factor for both OS and LC. Patients who underwent spine SBRT 6 months after the spinal lesion diagnosis had LC at 2 years of 88%, vs 61.7% for those who underwent SBRT before this period. No grade III or higher toxicity was reported. The vertebral compression fracture (VCF) rate was 4.1%. CONCLUSION Spine SBRT at our institution showed a 2-year LC of 70.6%, without G3 toxicities. Delaying SBRT at least 6 months to administer systemic treatment was related to an improvement in local control.
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Affiliation(s)
- H Pérez-Montero
- Radiation Oncology Department, Institut Català D'Oncologia, Barcelona, Spain
| | - O Godino
- Neurosurgery Department, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - A Lozano
- Radiation Oncology Department, Institut Català D'Oncologia, Barcelona, Spain
| | - L Asiáin
- Radiation Oncology Department, Institut Català D'Oncologia, Barcelona, Spain
| | - I Martínez
- Radiation Oncology Department, Institut Català D'Oncologia, Barcelona, Spain
| | - J J Sánchez
- Radiodiagnostic Department, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - R de BlasFernández
- Medical Physics and Radiation Protection Department, Institut Català D'Oncologia, Barcelona, Spain
| | - E Fernández
- Physical Medicine and Rehabilitation Department, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - M Stefanovic
- Radiation Oncology Department, Institut Català D'Oncologia, Barcelona, Spain
| | - N García
- Radiation Oncology Department, Institut Català D'Oncologia, Barcelona, Spain
| | - J Martínez
- Radiation Oncology Department, Institut Català D'Oncologia, Barcelona, Spain
| | - F Guedea
- Radiation Oncology Department, Institut Català D'Oncologia, Barcelona, Spain
| | - A Navarro-Martin
- Radiation Oncology Department, Institut Català D'Oncologia, Barcelona, Spain.
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Herrera A, Raymond E, Martínez I, Álvarez S, Canning-Clode J, Gestoso I, Pham CK, Ríos N, Rodríguez Y, Gómez M. First evaluation of neustonic microplastics in the Macaronesian region, NE Atlantic. Mar Pollut Bull 2020; 153:110999. [PMID: 32275548 DOI: 10.1016/j.marpolbul.2020.110999] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/17/2020] [Accepted: 02/17/2020] [Indexed: 06/11/2023]
Abstract
Marine microplastic pollution is an issue of great concern nowadays since high concentrations have been detected in the ocean, mainly in the subtropical gyres that accumulate this type of debris. The long-term effects of this pollution on ecosystems and marine biota are still unknown. The aim of this study is to quantify and characterise microplastics and neustonic zooplankton in sub-surface waters of the Macaronesian region, an area that has been little studied to date. Our results show a great variability in the concentration of microplastics with values between 15,283 items/km2 in Los Gigantes (Tenerife, Canary Islands) and 1,007,872 items/km2 in Las Canteras (Gran Canaria, Canary Islands). The main types of debris found were plastic fragments and fibres. The abundances of neustonic zooplankton were also very variable between the different sampling areas, being the main components copepods and eggs. Regarding the microplastics-zooplankton ratio, values were obtained between 0.002 and 0.22. In Las Canteras, the highest accumulation zone, was found twice as much microplastics as zooplankton for the 1-5 mm fraction in dry weight. These values highlight the potential hazard of microplastics - and its associated chemical contaminants - for marine biota, especially for large filter feeders.
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Affiliation(s)
- A Herrera
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain.
| | - E Raymond
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - I Martínez
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - S Álvarez
- MARE-Marine and Environmental Sciences Centre, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal
| | - J Canning-Clode
- MARE-Marine and Environmental Sciences Centre, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal; Centre of IMAR of the University of the Azores, Department of Oceanography and Fisheries, Azores, Portugal; Smithsonian Environmental Research Center, 647 Contees Wharf Road, Edgewater, MD 21037, USA
| | - I Gestoso
- MARE-Marine and Environmental Sciences Centre, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal; Centre of IMAR of the University of the Azores, Department of Oceanography and Fisheries, Azores, Portugal
| | - C K Pham
- IMAR/OKEANOS - Universidade dos Açores, Departamento de Oceanografia e Pescas, Horta 9901-862, Portugal
| | - N Ríos
- IMAR/OKEANOS - Universidade dos Açores, Departamento de Oceanografia e Pescas, Horta 9901-862, Portugal
| | - Y Rodríguez
- IMAR/OKEANOS - Universidade dos Açores, Departamento de Oceanografia e Pescas, Horta 9901-862, Portugal
| | - M Gómez
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
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Hurtado P, Prieto M, Martínez-Vilalta J, Giordani P, Aragón G, López-Angulo J, Košuthová A, Merinero S, Díaz-Peña EM, Rosas T, Benesperi R, Bianchi E, Grube M, Mayrhofer H, Nascimbene J, Wedin M, Westberg M, Martínez I. Disentangling functional trait variation and covariation in epiphytic lichens along a continent-wide latitudinal gradient. Proc Biol Sci 2020; 287:20192862. [PMID: 32156209 PMCID: PMC7126072 DOI: 10.1098/rspb.2019.2862] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/17/2020] [Indexed: 11/12/2022] Open
Abstract
Characterizing functional trait variation and covariation, and its drivers, is critical to understand the response of species to changing environmental conditions. Evolutionary and environmental factors determine how traits vary among and within species at multiple scales. However, disentangling their relative contribution is challenging and a comprehensive trait-environment framework addressing such questions is missing in lichens. We investigated the variation in nine traits related to photosynthetic performance, water use and nutrient acquisition applying phylogenetic comparative analyses in lichen epiphytic communities on beech across Europe. These poikilohydric organisms offer a valuable model owing to their inherent limitations to buffer contrasting environmental conditions. Photobiont type and growth form captured differences in certain physiological traits whose variation was largely determined by evolutionary processes (i.e. phylogenetic history), although the intraspecific component was non-negligible. Seasonal temperature fluctuations also had an impact on trait variation, while nitrogen content depended on photobiont type rather than nitrogen deposition. The inconsistency of trait covariation among and within species prevented establishing major resource use strategies in lichens. However, we did identify a general pattern related to the water-use strategy. Thus, to robustly unveil lichen responses under different climatic scenarios, it is necessary to incorporate both among and within-species trait variation and covariation.
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Affiliation(s)
- P. Hurtado
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - M. Prieto
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | | | | | - G. Aragón
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - J. López-Angulo
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - A. Košuthová
- Department of Botany, Swedish Museum of Natural History, Stockholm, Sweden
- Institute of Botany, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Bratislava, Slovak Republic
| | - S. Merinero
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
- Department of Ecology, Environment and Plant Sciences, Stockholm University, Stockholm, Sweden
| | - E. M. Díaz-Peña
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - T. Rosas
- CREAF, Bellaterra (Cerdanyola del Valles), Catalonia, Spain
| | - R. Benesperi
- Department of Biology, University of Florence, Firenze, Italy
| | - E. Bianchi
- Department of Biology, University of Florence, Firenze, Italy
| | - M. Grube
- Institute of Biology, Karl-Franzens-Universität Graz, Graz, Austria
| | - H. Mayrhofer
- Institute of Biology, Karl-Franzens-Universität Graz, Graz, Austria
| | - J. Nascimbene
- Department of Biological, Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - M. Wedin
- Department of Botany, Swedish Museum of Natural History, Stockholm, Sweden
| | - M. Westberg
- Museum of Evolution, Uppsala University, Uppsala, Sweden
| | - I. Martínez
- Área de Biodiversidad y Conservación, Departmento de Biología y Geología, Física y Química Inorgánica, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
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Andrés RR, Pinto A, Martínez I, Riera E. Acoustic field generated by an innovative airborne power ultrasonic system with reflectors for coherent radiation. Ultrasonics 2019; 99:105963. [PMID: 31351361 DOI: 10.1016/j.ultras.2019.105963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/06/2019] [Accepted: 07/13/2019] [Indexed: 06/10/2023]
Abstract
In order to obtain the maximum efficiency in industrial processes assisted by airborne power ultrasound, the ultrasonic systems must be capable of generating an acoustic field with a maximum energy concentration in the desired areas. In this paper, the acoustic performance of two different ultrasonic systems is presented. The first system corresponds to an airborne power ultrasonic transducer with a flat rectangular plate radiator, and the second system is composed by the same transducer mounted in a set of reflectors that allow the generation of coherent radiation. The acoustic pressure field for each system has been determined numerically and the spatial pattern has been experimentally measured. In the experiment, the system with reflectors obtained higher pressure amplitude in a wider area, due to the coherent radiation achieved. The directivity pattern obtained in the experiment confirms this coherent radiation field. This is the first time that the acoustical behavior of two different ultrasonic systems with flat rectangular radiator, vibrating in a complex flexural mode, has been numerically and experimentally described and compared in terms of pressure amplitude distribution and directivity pattern.
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Affiliation(s)
- R R Andrés
- Departamento de Sensores y Sistemas Ultrasónicos (DSSU), ITEFI, CSIC, Serrano 144, 28006 Madrid, Spain; Escuela Técnica Superior de Ingenieros Industriales (ETSII), Universidad Politécnica de Madrid (UPM), Calle de José Gutiérrez Abascal 2, 28006 Madrid, Spain.
| | - A Pinto
- Departamento de Sensores y Sistemas Ultrasónicos (DSSU), ITEFI, CSIC, Serrano 144, 28006 Madrid, Spain
| | - I Martínez
- Departamento de Sensores y Sistemas Ultrasónicos (DSSU), ITEFI, CSIC, Serrano 144, 28006 Madrid, Spain
| | - E Riera
- Departamento de Sensores y Sistemas Ultrasónicos (DSSU), ITEFI, CSIC, Serrano 144, 28006 Madrid, Spain
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11
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Cardós JLH, Prieto M, Jylhä M, Aragón G, Molina MC, Martínez I, Rikkinen J. A case study on the re-establishment of the cyanolichen symbiosis: where do the compatible photobionts come from? Ann Bot 2019; 124:379-388. [PMID: 31329832 PMCID: PMC6798828 DOI: 10.1093/aob/mcz052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 03/19/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND AND AIMS In order to re-establish lichen symbiosis, fungal spores must first germinate and then associate with a compatible photobiont. To detect possible establishment limitations in a sexually reproducing cyanolichen species, we studied ascospore germination, photobiont growth and photobiont association patterns in Pectenia plumbea. METHODS Germination tests were made with ascospores from 500 apothecia under different treatments, and photobiont growth was analysed in 192 isolates obtained from 24 thalli. We determined the genotype identity [tRNALeu (UAA) intron] of the Nostoc cyanobionts from 30 P. plumbea thalli from one population. We also sequenced cyanobionts of 41 specimens of other cyanolichen species and 58 Nostoc free-living colonies cultured from the bark substrate. KEY RESULTS Not a single fungal ascospore germinated and none of the photobiont isolates produced motile hormogonia. Genetic analyses revealed that P. plumbea shares Nostoc genotypes with two other cyanolichen species of the same habitat, but these photobionts were hardly present in the bark substrate. CONCLUSIONS Due to the inability of both symbionts to thrive independently, the establishment of P. plumbea seems to depend on Dendriscocaulon umhausense, the only cyanolichen species in the same habitat that reproduces asexually and acts as a source of appropriate cyanobionts. This provides support to the hypothesis about facilitation among lichens.
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Affiliation(s)
- J L H Cardós
- Área de Biodiversidad y Conservación, ESCET, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - M Prieto
- Área de Biodiversidad y Conservación, ESCET, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - M Jylhä
- Department of Biology and Geology, Physics and Inorganic Chemistry, Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Finland
| | - G Aragón
- Área de Biodiversidad y Conservación, ESCET, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - M C Molina
- Área de Biodiversidad y Conservación, ESCET, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - I Martínez
- Área de Biodiversidad y Conservación, ESCET, Universidad Rey Juan Carlos, Móstoles, Madrid, Spain
| | - J Rikkinen
- Department of Biology and Geology, Physics and Inorganic Chemistry, Organismal and Evolutionary Biology Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Finland
- Finnish Museum of Natural History, University of Helsinki, Finland
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13
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Hernández-Teixidó C, Quirós C, Bureo C, Martínez I, Cabeza F. [Analysis of patients with type 2 diabetes in an urban Primary Healthcare centre. DESENROQUE Study]. Semergen 2019; 46:46-52. [PMID: 31331768 DOI: 10.1016/j.semerg.2019.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/22/2019] [Accepted: 05/28/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES To determine the health status of patients with type 2 diabetes (T2D) in an urban Primary Healthcare centre, and to assess the follow-up carried out by health professionals. To analyse the pharmacological treatment in patients with T2D, as well as to assess the individualisation according to their comorbidities. MATERIAL AND METHODS Descriptive and cross-sectional analysis conducted on patients with DM2. Out of a total of 920 patients, a randomised and simple sample of 460 individuals was obtained, from which the parameters related to associated comorbidities and the integral treatment of T2D were collected. RESULTS The study included 460 patients (42.4% women) with a mean age of 67.1 years (SD=13.07). The mean value of their last HbA1c was 6.75% (SD=1.24). The large majority (83.7%) fulfilled the proposed individualised HbA1c objectives according to their age and comorbidities. Approximately two-thirds (65.43%) of patients had a suboptimal follow-up by health professionals. As regards the suitability of the treatment, 19.8% had non-recommended pharmacological combinations or drugs applied outside the indications of the data sheet. A comprehensive T2D treatment that could be improved was observed in 74.3%. CONCLUSIONS Although 83.7% of patients had good control of HbA1c, the treatment is centred on blood glucose and improvable in a high percentage of patients (74.3%). Given that the therapy must be adjusted to the needs of each patient, and since the BMI (body mass index) is a determining factor for the selection of treatment, it is striking that it is not recorded in the clinical histories of 44.13% of the patients.
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Affiliation(s)
- C Hernández-Teixidó
- Medicina Familiar y Comunitaria, Centro de Salud San Roque, Badajoz, España.
| | - C Quirós
- Medicina Familiar y Comunitaria, Centro de Salud San Roque, Badajoz, España
| | - C Bureo
- Medicina Familiar y Comunitaria, Centro de Salud San Roque, Badajoz, España
| | - I Martínez
- Medicina Familiar y Comunitaria, Centro de Salud San Roque, Badajoz, España
| | - F Cabeza
- Enfermería Familiar y Comunitaria, Centro de Salud San Roque, Badajoz, España
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Plaza V, Blanco M, Delgado J, Martínez I, Zubeldía JM, Molina J. Survey of Opinion of Spanish Physicians on the Role of Eosinophils in Asthma and Other Diseases. J Investig Allergol Clin Immunol 2019; 29:456-458. [PMID: 31172950 DOI: 10.18176/jiaci.0423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- V Plaza
- Director del Comité Ejecutivo de la Guía Española para el Manejo del Asma (GEMA), Servei de Pneumologia i Allèrgia, Hospital de la Santa Creu i Sant Pau, Institut d'Investigació Biomèdica Sant Pau (IIB Sant Pau), Universitat Autònoma de Barcelona, Barcelo
| | - M Blanco
- Servicio de Neumología, Complejo Hospitalario Universitario de A Coruña, A Coruña, Spain
| | - J Delgado
- Hospital Universitario Virgen Macarena, Sevilla, Spain
| | - I Martínez
- Hospital Universitario Son Espases, Palma, Spain
| | - J M Zubeldía
- Hospital Universitario Gregorio Marañón, Madrid, Spain
| | - J Molina
- Centro de Salud Francia, Fuenlabrada, Spain
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Diañez I, Gallegos C, Brito-de la Fuente E, Martínez I, Valencia C, Sánchez M, Diaz M, Franco J. 3D printing in situ gelification of κ-carrageenan solutions: Effect of printing variables on the rheological response. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.08.010] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Herrera A, Ŝtindlová A, Martínez I, Rapp J, Romero-Kutzner V, Samper MD, Montoto T, Aguiar-González B, Packard T, Gómez M. Microplastic ingestion by Atlantic chub mackerel (Scomber colias) in the Canary Islands coast. Mar Pollut Bull 2019; 139:127-135. [PMID: 30686409 DOI: 10.1016/j.marpolbul.2018.12.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 07/06/2018] [Revised: 12/07/2018] [Accepted: 12/10/2018] [Indexed: 05/15/2023]
Abstract
In recent years, due to the increasing concerns about their negative impact on wildlife and possible toxicity to living organisms (including humans), microplastics have become the subject of intense investigations. In the ocean, microplastics can be easily ingested by numerous marine organisms because of their small size (<5 mm). The Northwest African upwelling system is an important fishery area, and the present study is the first one in the region to reveal the presence of microplastic particles in the digestive tract of Atlantic chub mackerel (Scomber colias). From the 120 examined fish gastrointestinal tracts, 78.3% contained some type of microplastics, 74.2% contained fibres, 17.5% plastic fragments, and 16.7% paint. More studies are needed on fish, but S. colias is a candidate for being a good indicator of microplastic contamination in the region.
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Affiliation(s)
- A Herrera
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain.
| | - A Ŝtindlová
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - I Martínez
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - J Rapp
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - V Romero-Kutzner
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - M D Samper
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Alicante, Spain
| | - T Montoto
- Environmental Management, Technologies & Biogeochemistry Research Group (TGBA), Chemistry Department, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - B Aguiar-González
- School of Marine Science and Policy College of Earth, Ocean and Environment, University of Delaware, USA
| | - T Packard
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - M Gómez
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
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Blanco T, Casas R, Marco A, Martínez I. Micro ad-hoc Health Social Networks (uHSN). Design and evaluation of a social-based solution for patient support. J Biomed Inform 2018; 89:68-80. [PMID: 30503776 DOI: 10.1016/j.jbi.2018.11.009] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 10/23/2018] [Accepted: 11/18/2018] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To contribute the design, development, and assessment of a new concept: Micro ad hoc Health Social Networks (uHSN), to create a social-based solution for supporting patients with chronic disease. DESIGN After in-depth fieldwork and intensive co-design over a 4-year project following Community-Based Participatory Research (CBPR), this paper contributes a new paradigm of uHSN, defining two interaction areas (the "backstage", the sphere invisible to the final user, where processes that build services take place; and the "onstage", the visible part that includes the patients and relatives), and describes a new transversal concept, i.e., "network spaces segments," to provide timely interaction among all involved profiles and guaranteeing qualitative relationships. This proposal is applicable to any service design project and to all types of work areas; in the present work, it served as a social-based solution for supporting patients with chronic disease in two real-life health scenarios: a Parkinson disease patient association and a Stroke rehabilitation service in a hospital. These two scenarios included the following main features: thematic (related to the specific disease), private, and secure (only for the patient, relatives, healthcare professional, therapist, carer), with defined specific objectives (around patient support), small size (from tens to hundreds of users), ability to integrate innovative services (e.g., connection to hospital information service or to health sensors), supported by local therapeutic associations, and clustered with preconfigured relationships among users based in network groups. MEASUREMENTS Using a mixed qualitative and quantitative approach for 6 months, the performance of the uHSN was assessed in the two environments: a hospital rehabilitation unit working with Stroke patients, and a Parkinson disease association providing physiotherapy, occupational therapy, psychological support, speech therapy, and social services. We describe the proposed methods for evaluating the uHSN quantitatively and qualitatively, and how the scientific community can replicate and/or integrate this contribution in its research. RESULTS The uHSN overcomes the main limitations of traditional HSNs in the main areas recommended in the literature: privacy, security, transparency, system ecology, Quality of Service (QoS), and technology enhancement. The qualitative and quantitative research demonstrated its viability and replicability in four key points: user acceptance, productivity improvement, QoS enhancement, and fostering of social relations. It also meets the expectation of connecting health and social worlds, supporting distance rehabilitation, improving professionals' efficiency, expanding users' social capital, improving information quality and immediacy, and enhancing perceived peer/social/emotional support. The scientific contributions of the present paper are the first step not only in customizing health solutions that empower patients, their families, and healthcare professionals, but also in transferring this new paradigm to other scientific, professional, and social environments to create new opportunities.
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Affiliation(s)
- T Blanco
- HOWLab Research Group, Aragon Institute of Engineering Research (I3A), University of Zaragoza (UZ), Spain
| | - R Casas
- HOWLab Research Group, Aragon Institute of Engineering Research (I3A), University of Zaragoza (UZ), Spain
| | - A Marco
- HOWLab Research Group, Aragon Institute of Engineering Research (I3A), University of Zaragoza (UZ), Spain
| | - I Martínez
- HOWLab Research Group, Aragon Institute of Engineering Research (I3A), University of Zaragoza (UZ), Spain.
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Herreros-Villanueva M, Durán-Sanchón S, Martín A, Pérez-Palacios R, Vila-Navarro E, Marcuello M, Díaz-Centeno M, Cubiella J, Diez M, Bujanda L, Lanas A, Jover R, Hernández V, Quintero E, Lozano J, Martínez I, Castells A, Gironella M, Arroyo R. Plasma miRNAs signature validation for early detection of colorectal cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy149.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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19
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Sallabanda M, García-Berrocal M, Expósito M, García-Jarabo V, Rincón D, Sánchez S, Martínez I, Magallón R, Zapata I, De la Torre A. EP-1185: Outcome for brain metastasis of NSCLC treated with SRS or hypofractionation. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)31495-6] [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: 10/14/2022]
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20
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Herrera A, Asensio M, Martínez I, Santana A, Packard T, Gómez M. Microplastic and tar pollution on three Canary Islands beaches: An annual study. Mar Pollut Bull 2018; 129:494-502. [PMID: 29106939 DOI: 10.1016/j.marpolbul.2017.10.020] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [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: 07/14/2017] [Revised: 10/06/2017] [Accepted: 10/07/2017] [Indexed: 06/07/2023]
Abstract
Marine debris accumulation was analyzed from three exposed beaches of the Canary Islands (Lambra, Famara and Las Canteras). Large microplastics (1-5mm), mesoplastics (5-25mm) and tar pollution were assessed twice a month for a year. There was great spatial and temporal variability in the Canary Island coastal pollution. Seasonal patterns differed at each location, marine debris concentration depended mainly of local-scale wind and wave conditions. The most polluted beach was Lambra, a remote beach infrequently visited. The types of debris found were mainly preproduction resin pellets, plastic fragments and tar, evidencing that pollution was not of local origin, but it cames from the open sea. The levels of pollution were similar to those of highly industrialized and contaminated regions. This study corroborates that the Canary Islands are an area of accumulation of microplastics and tar rafted from the North Atlantic Ocean by the southward flowing Canary Current.
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Affiliation(s)
- A Herrera
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA. Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain.
| | - M Asensio
- Snorkeling Experience, Avenida Mesa y López 57, 15, 3510 Las Palmas de Gran Canaria, Canary Islands, Spain
| | - I Martínez
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA. Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - A Santana
- Mathematics Department, Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - T Packard
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA. Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
| | - M Gómez
- Marine Ecophysiology Group (EOMAR), IU- ECOAQUA. Universidad de Las Palmas de Gran Canaria, Canary Islands, Spain
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Martínez I, El-Said Mohamed M, Santos VE, García JL, García-Ochoa F, Díaz E. Metabolic and process engineering for biodesulfurization in Gram-negative bacteria. J Biotechnol 2017; 262:47-55. [PMID: 28947364 DOI: 10.1016/j.jbiotec.2017.09.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [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: 07/17/2017] [Revised: 09/08/2017] [Accepted: 09/09/2017] [Indexed: 11/19/2022]
Abstract
Microbial desulfurization or biodesulfurization (BDS) is an attractive low-cost and environmentally friendly complementary technology to the hydrotreating chemical process based on the potential of certain bacteria to specifically remove sulfur from S-heterocyclic compounds of crude fuels that are recalcitrant to the chemical treatments. The 4S or Dsz sulfur specific pathway for dibenzothiophene (DBT) and alkyl-substituted DBTs, widely used as model S-heterocyclic compounds, has been extensively studied at the physiological, biochemical and genetic levels mainly in Gram-positive bacteria. Nevertheless, several Gram-negative bacteria have been also used in BDS because they are endowed with some properties, e.g., broad metabolic versatility and easy genetic and genomic manipulation, that make them suitable chassis for systems metabolic engineering strategies. A high number of recombinant bacteria, many of which are Pseudomonas strains, have been constructed to overcome the major bottlenecks of the desulfurization process, i.e., expression of the dsz operon, activity of the Dsz enzymes, retro-inhibition of the Dsz pathway, availability of reducing power, uptake-secretion of substrate and intermediates, tolerance to organic solvents and metals, and other host-specific limitations. However, to attain a BDS process with industrial applicability, it is necessary to apply all the knowledge and advances achieved at the genetic and metabolic levels to the process engineering level, i.e., kinetic modelling, scale-up of biphasic systems, enhancing mass transfer rates, biocatalyst separation, etc. The production of high-added value products derived from the organosulfur material present in oil can be regarded also as an economically viable process that has barely begun to be explored.
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Affiliation(s)
- I Martínez
- Environmental Biology Department, Biological Research Center (CIB-CSIC), 28040 Madrid, Spain
| | - M El-Said Mohamed
- Research and Development Center, Saudi Aramco, Dhahran, Saudi Arabia
| | - V E Santos
- Chemical Engineering Department, Complutense University of Madrid, 28040 Madrid Spain
| | - J L García
- Environmental Biology Department, Biological Research Center (CIB-CSIC), 28040 Madrid, Spain; Institute for Integrative Systems Biology (I2SysBio) (University of Valencia-CSIC), 46980 Paterna Valencia, Spain
| | - F García-Ochoa
- Chemical Engineering Department, Complutense University of Madrid, 28040 Madrid Spain
| | - E Díaz
- Environmental Biology Department, Biological Research Center (CIB-CSIC), 28040 Madrid, Spain.
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Spinelli M, Martínez I, De Lena E, Cinti G, Hornberger M, Spörl R, Abanades J, Becker S, Mathai R, Fleiger K, Hoenig V, Gatti M, Scaccabarozzi R, Campanari S, Consonni S, Romano M. Integration of Ca-Looping Systems for CO2 Capture in Cement Plants. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.egypro.2017.03.1758] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bayón C, Lerma S, Ramírez O, Serrano J, Del Castillo M, Raya R, Belda-Lois J, Martínez I, Rocon E. Locomotor training through a novel robotic platform for gait rehabilitation in pediatric population: short report. J Neuroeng Rehabil 2016; 13:98. [PMID: 27842562 PMCID: PMC5109815 DOI: 10.1186/s12984-016-0206-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [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: 03/17/2016] [Accepted: 10/25/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cerebral Palsy (CP) is a disorder of posture and movement due to a defect in the immature brain. The use of robotic devices as alternative treatment to improve the gait function in patients with CP has increased. Nevertheless, current gait trainers are focused on controlling complete joint trajectories, avoiding postural control and the adaptation of the therapy to a specific patient. This paper presents the applicability of a new robotic platform called CPWalker in children with spastic diplegia. FINDINGS CPWalker consists of a smart walker with body weight and autonomous locomotion support and an exoskeleton for joint motion support. Likewise, CPWalker enables strategies to improve postural control during walking. The integrated robotic platform provides means for testing novel gait rehabilitation therapies in subjects with CP and similar motor disorders. Patient-tailored therapies were programmed in the device for its evaluation in three children with spastic diplegia for 5 weeks. After ten sessions of personalized training with CPWalker, the children improved the mean velocity (51.94 ± 41.97 %), cadence (29.19 ± 33.36 %) and step length (26.49 ± 19.58 %) in each leg. Post-3D gait assessments provided kinematic outcomes closer to normal values than Pre-3D assessments. CONCLUSIONS The results show the potential of the novel robotic platform to serve as a rehabilitation tool. The autonomous locomotion and impedance control enhanced the children's participation during therapies. Moreover, participants' postural control was substantially improved, which indicates the usefulness of the approach based on promoting the patient's trunk control while the locomotion therapy is executed. Although results are promising, further studies with bigger sample size are required.
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Affiliation(s)
- C. Bayón
- Neural and Cognitive Engineering group, Centro de Automática y Robótica, Consejo Superior de Investigaciones Científicas, Ctra Campo Real km 0.2, Arganda del Rey, Madrid, 28500 Spain
| | - S. Lerma
- Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - O. Ramírez
- Neural and Cognitive Engineering group, Centro de Automática y Robótica, Consejo Superior de Investigaciones Científicas, Ctra Campo Real km 0.2, Arganda del Rey, Madrid, 28500 Spain
| | - J.I. Serrano
- Neural and Cognitive Engineering group, Centro de Automática y Robótica, Consejo Superior de Investigaciones Científicas, Ctra Campo Real km 0.2, Arganda del Rey, Madrid, 28500 Spain
| | - M.D. Del Castillo
- Neural and Cognitive Engineering group, Centro de Automática y Robótica, Consejo Superior de Investigaciones Científicas, Ctra Campo Real km 0.2, Arganda del Rey, Madrid, 28500 Spain
| | - R. Raya
- Neural and Cognitive Engineering group, Centro de Automática y Robótica, Consejo Superior de Investigaciones Científicas, Ctra Campo Real km 0.2, Arganda del Rey, Madrid, 28500 Spain
| | | | - I. Martínez
- Hospital Infantil Universitario Niño Jesús, Madrid, Spain
| | - E. Rocon
- Neural and Cognitive Engineering group, Centro de Automática y Robótica, Consejo Superior de Investigaciones Científicas, Ctra Campo Real km 0.2, Arganda del Rey, Madrid, 28500 Spain
- Postgraduate Program, Universidade Federal do Espírito Santo, Vitória, Brazil
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González B, Bueno D, Rubio P, San Román S, Plaza D, Sastre A, García-Miguel P, Fernández L, Valentín J, Martínez I, Pérez-Martínez A. An immunological approach to acute myeloid leukaemia. Anales de Pediatría (English Edition) 2016. [DOI: 10.1016/j.anpede.2015.07.028] [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: 10/22/2022] Open
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Savietto D, Marono S, Martínez I, Martínez-Paredes E, Ródenas L, Cervera C, Pascual J. Patterns of body condition use and its impact on fertility. World Rabbit Sci 2016. [DOI: 10.4995/wrs.2016.4006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
<p>A total of 60 nulliparous crossbred rabbit females were, a posteriori, divided into 2 experimental groups according to their natural “decision” to conceive or not at day 11 post first parturition (L: solely-lactating or LP: lactating-pregnant). This design allowed us to study the evolution of body reserves around first parturition and its influence on the future reproductive success of rabbit females. Primiparous rabbit females that failed to conceive when inseminated at day 11 post-partum (L) seemed to have a higher perirenal fat thickness (PFT) 12 d pre-partum (+0.25 mm; P=0.079) than females that conceived (LP). In the subsequent days, L females showed a significantly higher mobilisation rate than LP females (on av.–0.12 and –0.07 mm of PFT per day, respectively; P=0.007), reaching a lower PFT at partum (5.17 mm vs. 5.62 mm, respectively; P = 0.002). However, due to a greater recovery rate observed in L females (+0.15 vs. +0.08 mm of PFT per day for L and LP females, respectively; P=0.007), PFT at 10 d post-partum was similar (on av. 5.86 mm). These different patterns showed that PFT level at 12 d pre-partum and PFT mobilisation rate onwards seems to drive the start of a new pregnancy. It also seems to modify the energy metabolism of rabbit females, allowing does to recover perirenal fat tissue without compromising the production of milk necessary for the current litter.</p>
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Raposo M, Piqueras M, Martínez I, Galdámez A, Gil A, Murcia J, Belmar A, Rodríguez A, Manzur P, Bello I, Bravo S, Ivanov V, García C. Mapping vulnerability to bipolar disorders. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.164] [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
IntroductionAlthough early interventions in individuals with bipolar disorder may reduce the associated personal and economic burden, the neurobiologic markers of enhanced risk are unknown.ObjectivesThe objective of this paper is to analyze the existence of neurobiological abnormalities in individuals with genetic risk for developing bipolar disorder (HR)Material and methodsA literature search was performed in the available scientific literature on the subject study object, by searching MEDLINE.ResultsThere were 37 studies included in this systematic review. The overall sample for the systematic review included 1258 controls and 996 HR individuals. No significant differences were detected between HR individuals and controls in the selected ROIs (regions of interest): striatum, amygdala, hippocampus, pituitary and frontal lobe. The HR group showed increased grey matter volume compared with patients with established bipolar disorder. The HR individuals showed increased neural response in the left superior frontal gyrus, medial frontal gyrus and left insula compared with controls. The overall results found no significant differences between individuals at high genetic risk and controls since the magnitude of the association as corresponds to an OR < 1.5 (low association)ConclusionThere is accumulating evidence for the existence of neurobiologic abnormalities in individuals at genetic risk for bipolar disorder at various scales of investigation. The etiopathogenesis of bipolar disorder will be better elucidated by future imaging studies investigating larger and more homogeneous samples and using longitudinal designs to dissect neurobiologic abnormalities that are underlying traits of the illness from those related to psychopathologic states, such as episodes of mood exacerbation or pharmacologic treatment.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Raposo M, Ivanov V, Murcia J, Piqueras M, Martínez I, González A, Busaileh A, Manzur P, Belmar A, Bello I, Bravo S, Gil A, Rodríguez A. Cocaine use and employment. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1073] [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
IntroductionCocaine use is prevalent in mental health consultations in both sexes. However, in men and women there are differences in the frequency of use of substances and on the employment situation.ObjectivesShow the differences for the use of cocaine and employment status of men and women, in a sample of patients followed at the Mental Health Center in Drug Dependency Unit.Material and methodsWe conducted a cross-sectional study and analyze the differences according to sex for cocaine use and the employment situation, in a sample of patients who are undergoing treatment at the Mental Health Center for a year diagnosed with dual pathology.ResultsIn men in active employment status, the percentage of cocaine use is 19.5% and if we compare with women in the same job situation, the percentage of cocaine use is 0%.Men who are unemployed use more cocaine than women in the same job situation. For retirees, the highest percentage of cocaine is found in women.Hundred percent of women use cocaine by sniffing. Men use different ways of cocaine consume.Snorted way 67.7%, 14.9% smoked and snorted, smoked 8% and 2.3% intravenous.ConclusionMen use cocaine more frequently unemployed while women do more it often being retired.The route most used cocaine consume in both sexes is snorted.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Patricio-Martínez A, Mendieta L, Martínez I, Aguilera J, Limón I. The recombinant C-terminal fragment of tetanus toxin protects against cholinotoxicity by intraseptal injection of β-amyloid peptide (25–35) in rats. Neuroscience 2016; 315:18-30. [DOI: 10.1016/j.neuroscience.2015.11.066] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 11/19/2015] [Accepted: 11/30/2015] [Indexed: 11/30/2022]
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Marcilla A, Beltrán MI, Gómez-Siurana A, Martínez I, Berenguer D. Effect of the Concentration of Siliceous Materials Added to Tobacco Cigarettes on the Composition of the Smoke Generated during Smoking. Ind Eng Chem Res 2015. [DOI: 10.1021/ie5038837] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Marcilla
- Dpto. Ingeniería Química, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - M. I. Beltrán
- Dpto. Ingeniería Química, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - A. Gómez-Siurana
- Dpto. Ingeniería Química, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - I. Martínez
- Dpto. Ingeniería Química, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - D. Berenguer
- Dpto. Ingeniería Química, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
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Martínez I, Flores T, Aragón G, Otálora M, Rubio-Salcedo M. What factors influence the occurrence of the genus Degelia (a threatened lichen) in central Spain? FUNGAL ECOL 2014. [DOI: 10.1016/j.funeco.2014.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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López-Vilanova L, Martínez I, Corrales T, Catalina F. Photochemical crosslinking of poly-(ethylene–butyl-acrylate) copolymers functionalized with anthracene moieties by reactive extrusion. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.04.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Veses A, Aznar M, Martínez I, Martínez JD, López JM, Navarro MV, Callén MS, Murillo R, García T. Catalytic pyrolysis of wood biomass in an auger reactor using calcium-based catalysts. Bioresour Technol 2014; 162:250-258. [PMID: 24759640 DOI: 10.1016/j.biortech.2014.03.146] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 03/21/2014] [Accepted: 03/26/2014] [Indexed: 06/03/2023]
Abstract
Wood catalytic pyrolysis using calcium-based materials was studied in an auger reactor at 450°C. Two different catalysts, CaO and CaO·MgO were evaluated and upgraded bio-oils were obtained in both cases. Whilst acidity and oxygen content remarkable decrease, both pH and calorific value increase with respect to the non-catalytic test. Upgrading process was linked to the fact that calcium-based materials could not only fix the CO2-like compounds but also promoted the dehydration reactions. In addition, process simulation demonstrated that the addition of these catalysts, especially CaO, could favour the energetic integration since a lowest circulation of heat carrier between combustor and auger reactor should be needed. An energy self-sustained system was obtained where thermal energy required for biomass drying and for pyrolysis reaction was supplied by non-condensable gas and char combustion, respectively.
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Affiliation(s)
- A Veses
- Instituto de Carboquímica (ICB-CSIC), M. Luesma Castán 4, 50018 Zaragoza, Spain
| | - M Aznar
- Instituto de Carboquímica (ICB-CSIC), M. Luesma Castán 4, 50018 Zaragoza, Spain
| | - I Martínez
- Instituto de Carboquímica (ICB-CSIC), M. Luesma Castán 4, 50018 Zaragoza, Spain
| | - J D Martínez
- Instituto de Carboquímica (ICB-CSIC), M. Luesma Castán 4, 50018 Zaragoza, Spain; Grupo de Investigaciones Ambientales, Universidad Pontificia Bolivariana, Circular 1 N(o)70-01, Bloque 11, Piso 2, Medellín, Colombia
| | - J M López
- Instituto de Carboquímica (ICB-CSIC), M. Luesma Castán 4, 50018 Zaragoza, Spain
| | - M V Navarro
- Instituto de Carboquímica (ICB-CSIC), M. Luesma Castán 4, 50018 Zaragoza, Spain
| | - M S Callén
- Instituto de Carboquímica (ICB-CSIC), M. Luesma Castán 4, 50018 Zaragoza, Spain
| | - R Murillo
- Instituto de Carboquímica (ICB-CSIC), M. Luesma Castán 4, 50018 Zaragoza, Spain
| | - T García
- Instituto de Carboquímica (ICB-CSIC), M. Luesma Castán 4, 50018 Zaragoza, Spain.
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Concostrina-Zubiri L, Huber-Sannwald E, Martínez I, Flores Flores JL, Reyes-Agüero JA, Escude A, Belnap J. Biological soil crusts across disturbance–recovery scenarios: effect of grazing regime on community dynamics. Ecol Appl 2014; 24:1863-1877. [PMID: 29210244 DOI: 10.1890/13-1416.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Grazing represents one of the most common disturbances in drylands worldwide, affecting both ecosystem structure and functioning. Despite the efforts to understand the nature and magnitude of grazing effects on ecosystem components and processes, contrasting results continue to arise. This is particularly remarkable for the biological soil crust (BSC) communities (i.e., cyanobacteria, lichens, and bryophytes), which play an important role in soil dynamics. Here we evaluated simultaneously the effect of grazing impact on BSC communities (resistance) and recovery after livestock exclusion (resilience) in a semiarid grassland of Central Mexico. In particular, we examined BSC species distribution, species richness, taxonomical group cover (i.e., cyanobacteria, lichen, bryophyte), and composition along a disturbance gradient with different grazing regimes (low, medium, high impact) and along a recovery gradient with differently aged livestock exclosures (short-, medium-, long-term exclusion). Differences in grazing impact and time of recovery from grazing both resulted in slight changes in species richness; however, there were pronounced shifts in species composition and group cover. We found we could distinguish four highly diverse and dynamic BSC species groups: (1) species with high resistance and resilience to grazing, (2) species with high resistance but low resilience, (3) species with low resistance but high resilience, and (4) species with low resistance and resilience. While disturbance resulted in a novel diversity configuration, which may profoundly affect ecosystem functioning, we observed that 10 years of disturbance removal did not lead to the ecosystem structure found after 27 years of recovery. These findings are an important contribution to our understanding of BCS dynamics from a species and community perspective placed in a land use change context.
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Zárate-Ramírez L, Romero A, Martínez I, Bengoechea C, Partal P, Guerrero A. Effect of aldehydes on thermomechanical properties of gluten-based bioplastics. Food and Bioproducts Processing 2014. [DOI: 10.1016/j.fbp.2013.07.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Llop JM, Leiva E, Mateu-de Antonio J, Berlana D, Badia M, Casasín T, Miana M, Pons M, Maroto M, Chicharro L, López-Suñé E, Díaz-Munio E, Sevilla D, Martínez I, Vitales M, Casajuana MT, Bobis MA. Study of hyperglycemia in non critically-ill patients receiving parenteral nutrition: incidence and risk factors. NUTR HOSP 2013; 27:1521-6. [PMID: 23478700 DOI: 10.3305/nh.2012.27.5.5880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Accepted: 04/28/2012] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND The objectives of our study on non-critically ill patients receiving parenteral nutrition (PN) are to assess the incidence of hyperglycemia, the risk factors associated to its development and its influence in patient's evolution. METHODS A multicentric prospective observational study was performed in 9 hospitals. Four multivariate studies were developed to study the temporal risk in the occurrence of hyperglycemia (endpoint), intensive care unit (ICU) admission, length of stay (LOS) and death. Demographics, nutrients, drugs and clinical variables were collected. Independent variables studied as a possible risk factors were: sex, diabetes mellitus 2, baseline glycemia, albuminemia, pancreatitis, surgery in the 7 days prior to the end point, infection, insulin/somatostatin/corticoids administration during the study, glomerular filtration rate (GFR), and difference in the amount of glucose administration between the endpoint and one day before. RESULTS 119 patients were enrolled in the study, 25 cases of hyperglycemia were detected. In the clinical factors associated with PN hyperglycemia, significant variables were: surgery in the 7 days before the end point, GFR, glucose load in the 24 hours previous to the end point insulin administration and somatostatine/octreotide administration during the study. Hyperglycemia was significantly associated with ICU admission and increased LOS. CONCLUSIONS Glucose administration in non-critically ill patients receiving PN should be reassessed downwards, especially in the immediate postsurgery, renal impairment and in patients treated with somatostatin analogues. It should be taken into account that an increase in glucose dose may lead to hyperglycemia in these patients and hyperglycemia correlates with longer hospital stay and increased frequency of ICU admissions.
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Affiliation(s)
- J M Llop
- Hospital Universitari Bellvitge-IDIBELL, Barcelona, Spain.
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Flota-Bañuelos C, Martínez I, López-Collado J, Vargas Mendoza M, González Hernández H, Fajersson P. [Spatio-temporal pattern of larvae and eggs of gastrointestinal nematodes in cattle pastures in Veracruz, Mexico]. REV BIOL TROP 2013; 61:1747-1758. [PMID: 24432531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
The spatial and temporal distribution of gastrointestinal nematodes of cattle has been little studied in Mexico. Previous studies have described periods of higher larval presence, vertical and horizontal migration in grasslands, and the frequency of adult nematodes; as well as the effect of pasture trichomes on the migration and survival of Haemonchus larvae. The aim of this study was to determine the time-space layout and spread of gastrointestinal nematode larvae on pasture, and to estimate the effect of ivermectin applied to cattle on the time-dependent abundance of their eggs in a ranch in Veracruz. To determine the spatio-temporal arrangement, monthly morning grass samples were obtained from 30 sampling points from July 2008 to June 2009. Third stage larvae (L3) from each point were counted, and aggregation patterns were estimated through variance/mean and negative binomial K indices. Additionally, the number of eggs per gram in cattle feces was determined, from samples with (CI) and without ivermectin (SI), using standard techniques. A total of 20 276 L(3) larvae were recovered in the pasture, of which an 80% corresponded to Haemonchus contortus. The highest nematode density with more than 5 000L(3)/kgDM was detected in October 2008, and the lowest in February and March 2009. The L3 showed an aggregated spatial pattern of varying intensity throughout the year. The number of eggs in the stool was not reduced with the ivermectin application to cattle, which suggested a failure of control. However, the highest parasite loads were observed from July to November 2008. We concluded that the application of ivermectin was not effective to control nematodes eggs, and that L3 populations fluctuated on pasture for ten months, providing an infection source to grazing animals afterwards.
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Affiliation(s)
| | - Imelda Martínez
- Instituto de Ecologia, A.C. Red de Ecoetología, Carretera a Coatepec 351, El Haya, Xalapa, C.P. 91070, Veracruz, México
| | - José López-Collado
- Colegio de Postgraduados, Campus Veracruz, Carretera Federal Veracruz-Xalapa Km 88.5 predio Tepetates. C.P. 91690, Veracruz, México
| | - Mónica Vargas Mendoza
- Colegio de Postgraduados, Campus Veracruz, Carretera Federal Veracruz-Xalapa Km 88.5 predio Tepetates. C.P. 91690, Veracruz, México
| | - Hector González Hernández
- Colegio de Postgraduados, Instituto de Fitosanidad, km 35.5 Carr. México-Texcoco, Montecillo, Edo de México
| | - Pernilla Fajersson
- Colegio de Postgraduados, Campus Veracruz, Carretera Federal Veracruz-Xalapa Km 88.5 predio Tepetates. C.P. 91690, Veracruz, México
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Pérez-Sancho M, García-Seco T, Arrogante L, García N, Martínez I, Diez-Guerrier A, Perales A, Goyache J, Domínguez L, Álvarez J. Development and evaluation of an IS711-based loop mediated isothermal amplification method (LAMP) for detection of Brucella spp. on clinical samples. Res Vet Sci 2013; 95:489-94. [DOI: 10.1016/j.rvsc.2013.05.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 03/14/2013] [Accepted: 05/04/2013] [Indexed: 11/16/2022]
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Rodríguez-Sáinz C, Valor L, Hernández DC, Gil J, Carbone J, Pascual-Bernaldez M, Rodríguez-Alcántara F, Martínez I, Vicario JL, Mallal S, Fernández-Cruz E. Flow cytometry analysis with a new FITC-conjugated monoclonal antibody-3E12 for HLA-B*57:01 rapid screening in prevention of abacavir hypersensitivity in HIV-1-infected patients. HIV Clin Trials 2013; 14:160-4. [PMID: 23924588 DOI: 10.1310/hct1404-160] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Rapid screening for the detection of HLA-B*57:01 in the prevention of abacavir hypersensitivity in HIV-1-infected patients is a hallmark for clinical services. OBJECTIVE The aim of this work was to analyze the utility of flow cytometry with a new FITC-conjugated B-17 monoclonal antibody (mAb3E12) for HLA-B*57:01 screening in a Spanish cohort of 577 HIV-1+ individuals. METHODS Cryopreserved peripheral blood mononuclear cell samples from HIV-1+ individuals were analyzed by flow cytometry with the mAb 3E12 that recognizes both HLA-B*57 and HLA-B*58 alleles (members of the group specificity, HLA-B17). Patients' DNA samples had been previously typed for HLA-B*57:01 with PCR-SSO or PCR-SSP and additional DNA sequencing (EPI Study). The results obtained by flow cytometry were compared with the results obtained by the DNA-PCR techniques. RESULTS By flow cytometry, 46 samples (7.97%) were positive for HLA-B17, 530 (91.86%) were negative, and 1 (0.17%) was undetermined. All samples found negative by flow cytometry were negative for HLA-B*57:01 by DNA-PCR. Of the HLA-B17 positive samples, 31 (67.4%) were positive for HLA-B*57:01, 2 (3.25%) were positive for HLA-B*57:03, 11 (26.1%) were positive for HLA-B*58, and 2 (3.25%) were negative for both HLA-B*57 and HLA-B*58 antigens. The undetermined sample was negative for HLA-B*57 and HLA-B*58 alleles by DNA-PCR. CONCLUSIONS This study shows that flow cytometry with mAb3E12 is a highly sensitive method (no false negatives) to implement prior to DNA-PCR analysis for rapid screening of HLA-B*57:01. Additional confirmation by molecular HLA typing method would be required in less than 10% of the cohort of HIV-1-infected individuals.
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Affiliation(s)
- C Rodríguez-Sáinz
- Servicio de Inmunología Clínica, Hospital General Universitario Gregorio Marañón, Departamento de Microbiología I (Inmunología), Universidad Complutense de Madrid, Madrid, Spain.
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Bejerano C, Blanco R, Calvo J, Narváez J, Peirό E, Pérez-Martín I, Alonso J, Rueda-Gotor J, Corrales A, Peña J, Martínez I, Carril J, González-Gay M. AB1245 Aortitis: Diagnosis by positron emission tomography (PET):. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1241] [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: 11/04/2022]
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Portolés A, Terleira A, Calvo A, Martínez I, Resplandy G. Effects ofHypericum perforatumon Ivabradine Pharmacokinetics in Healthy Volunteers: An Open-Label, Pharmacokinetic Interaction Clinical Trial. J Clin Pharmacol 2013; 46:1188-94. [PMID: 16988208 DOI: 10.1177/0091270006291623] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The effects of the CYP3A4 inducer, Hypericum perforatum, on the pharmacokinetics of a single oral dose of ivabradine were assessed. An open-label, 2-period, nonrandomized, phase-I, pharmacokinetic interaction design was used. Twelve healthy volunteers received a single oral dose of ivabradine (10 mg) followed by H perforatum (300 mg orally, 3 times a day) for 14 days, combining the last dose with another single dose of ivabradine. Pharmacokinetic data for ivabradine (S16257) and its main active metabolite (S18982) prior to and after the administration of H perforatum were analyzed. After repeated administration of H perforatum, highest observed concentration in plasma (C(max)) and area under the concentration-time curve (AUC) were significantly decreased for ivabradine (32.7 +/- 16.6 vs 15.4 +/- 7.0 ng/mL, P < .01; 114 +/- 39.1 vs 43.7 +/- 12.0 ng x h/mL, P < .01, respectively), and for S18982 (C(max), 6.8 +/- 3.7 vs 5.1 +/- 2.0 ng/mL, P < .05; AUC, 56.2 +/- 23.4 vs 38.3 +/- 25.1 ng x h/mL, P < .01). Tendencies toward shorter time to C(max) and lower apparent terminal half-life values were found. Pharmacokinetic results are consistent with an induction of ivabradine metabolism by H perforatum.
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Affiliation(s)
- A Portolés
- Clinical Pharmacology Studies Unit, Clinical Pharmacology Service, Hospital Clínico San Carlos, Madrid, Spain.
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Martínez P, Moreno C, Martínez I, Sedano L. Optimizing tritium extraction from a Permeator Against Vacuum (PAV) by dimensional design using different tritium transport modeling tools. Fusion Engineering and Design 2012. [DOI: 10.1016/j.fusengdes.2012.03.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Marcilla A, Martínez I, Berenguer D, Gómez-Siurana A, Beltrán MI. Comparative study of the main characteristics and composition of the mainstream smoke of ten cigarette brands sold in Spain. Food Chem Toxicol 2012; 50:1317-33. [PMID: 22342527 DOI: 10.1016/j.fct.2012.01.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 01/24/2012] [Accepted: 01/31/2012] [Indexed: 11/25/2022]
Abstract
In this study 10 commercial top selling cigarette brands in Spain have been machine smoked and the mainstream smoke has been analyzed. Multifunctional analysis has been satisfactorily employed to correlate the effect of the main design features of the cigarettes including amount of tobacco, filter size or paper weight with the amount of smoked tobacco and with the ratio CO(2)/CO. The composition of the vapor phase and that of the particulate matter have been analyzed. The particulate matter retained in the filter of the cigarettes has also been analyzed showing a distinct behavior of the compounds condensed in the cigarette filters and in the traps, related to their retention time. A general trend for the relative yield of some compounds in the different brands have been identified and confirmed by multifunctional analysis. Nevertheless, there are some noticeable compounds that behave differently in the different brands.
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Affiliation(s)
- A Marcilla
- Dpto. Ingeniería Química, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
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Gamez P, Mariscal A, Martínez I, Díaz Hellín V, Marrón C, Meneses J, López E, Hermoso F, Ávila R, Martín de Nicolás J, González O, de Pablo A. 641 The Donor Bithermia Preservation: Clinical Experience in Lung Transplantation from Uncontrolled NHBD. J Heart Lung Transplant 2012. [DOI: 10.1016/j.healun.2012.01.655] [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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Oh PL, Martínez I, Sun Y, Walter J, Peterson DA, Mercer DF. Characterization of the ileal microbiota in rejecting and nonrejecting recipients of small bowel transplants. Am J Transplant 2012; 12:753-62. [PMID: 22152019 DOI: 10.1111/j.1600-6143.2011.03860.x] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Small bowel transplantation can be a life-preserving procedure for patients with irreversible intestinal failure. Allograft rejection remains a major source of morbidity and mortality and its accurate diagnosis and treatment are critical. In this study, we used pyrosequencing of 16S ribosomal RNA gene tags to compare the composition of the ileal microbiota present during nonrejection, prerejection and active rejection states in small bowel transplant patients. During episodes of rejection, the proportions of phylum Firmicutes (p < 0.001) and the order Lactobacillales (p < 0.01) were significantly decreased, while those of the phylum Proteobacteria, especially the family Enterobacteriaceae, were significantly increased (p < 0.005). Receiver-operating characteristic analysis revealed that relative proportions of several bacterial taxa in ileal effluents and especially Firmicutes, could be used to discriminate between nonrejection and active rejection. In conclusion, the findings obtained during this study suggest that small bowel transplant rejection is associated with changes in the microbial populations in ileal effluents and support microbiota profiling as a potential diagnostic biomarker of rejection. Future studies should investigate if the dysbiosis that we observed is a cause or a consequence of the rejection process.
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Affiliation(s)
- P L Oh
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
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Cruz Rosales M, Martínez I, López-Collado J, Vargas-Mendoza M, González-Hernández H, Fajersson P. Effect of ivermectin on the survival and fecundity of Euoniticellus intermedius (Coleoptera: Scarabaeidae). REV BIOL TROP 2012; 60:333-345. [PMID: 22458228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
The State of Veracruz in Mexico is one of the main cattle producers, and uses several veterinary products for disease and parasite control. For parasite control, ivermectin is one of the most frequently used substances. Nevertheless, even though previous research conducted in other countries has found that this product has negative effects on beneficial coprophagous fauna, no studies have described its effects on coprophagous insects at a local scale in Veracruz, Mexico. This study evaluated Euoniticellus intermedius survival, fecundity, fertility and preimaginal development under laboratory conditions when ivermectin was added to cattle dung at three different concentrations. The design included two controls (spiked dung), and the following product concentrations: 0.01, 1.0 and 100ppm, which were homogenized with wet cattle dung. 20 female-male E. intermedius couples between five and 15 days old were used and kept at 27 degrees C, 70% RH, and 12h light for 10 days. The survival of all specimens, the fertility of 20 females and the gonadal maturity of 17 males were verified. The larval development in 162 pieces of brood-mass was examined, and a total of 974 larvae developed and reached adulthood. The highest ivermectin concentration was toxic at 1.0ppm dose, the survival of adults was reduced to almost the half, and at 100ppm, total mortality was observed. The effects on specimen reproductive systems showed that the ovary was not affected, that the testicle size increased, and that the fecundity and weight of brood-masses were reduced. Pre-imaginal development increased 0.5 times at 0.01ppm concentration, and the width of the cephalic capsule in third instar larvae diminished. The prolonging of development time may cause a phase lag in the field activity cycle, this lag may reduce the number of E. intermedius individuals and the efficiency of the environmental services that they provide.
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Affiliation(s)
- Magdalena Cruz Rosales
- Red de Ecoetología, Instituto de Ecología, A.C. Carretera a Coatepec 351, El Haya, Xalapa 91070, Veracruz, México.
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Navarro LA, Pastor-Vargas C, Liñana JJ, Martínez I, Maroto AS, Vivanco F, Bartolomé B. Anaphylaxis due to orange soft drinks. J Investig Allergol Clin Immunol 2012; 22:297-299. [PMID: 22812204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Affiliation(s)
- L A Navarro
- Allergy Unit, Hospital Lluís Alcanyís Xàtiva, Spain.
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Gómez-Martínez D, Barneto AG, Martínez I, Partal P. Modelling of pyrolysis and combustion of gluten-glycerol-based bioplastics. Bioresour Technol 2011; 102:6246-6253. [PMID: 21398112 DOI: 10.1016/j.biortech.2011.02.074] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Revised: 02/16/2011] [Accepted: 02/17/2011] [Indexed: 05/30/2023]
Abstract
Non-isothermal thermogravimetric analysis, under nitrogen and air atmospheres, has been applied to study the thermal degradation of wheat gluten and gluten-glycerol-based bioplastics. In order to explain experimental data, thermal degradation has been simulated using the so-called pseudo-components, which are related to protein fraction (mainly gliadin and glutenin), residual starch and plasticiser. Thus, the proposed models have been used to shed some light on the thermal decomposition of these materials, which have been found affected by their compositions and microstructures. Modelling confirms the experimental bioplastic and gluten isolate compositions, e.g. bioplastic moisture content, starch concentration and the expected gliadin/glutenin ratio. According to the simulation, the glycerol volatilisation is affected by bioplastic moisture content and hindered by the protein matrix. A fact pointing out that glycerol/water blend plays relevant plasticizing roles in the protein matrix through diverse physicochemical interactions.
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Affiliation(s)
- D Gómez-Martínez
- Departamento de Ingeniería Química, Facultad de Ciencias Experimentales, Campus el Carmen, Universidad de Huelva, 21071 Huelva, Spain
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