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Jiménez A, Rufo M, Paniagua JM, González-Mohino A, Olegario LS. Temperature dependence of acoustic parameters in pure and blended edible oils: Implications for characterization and authentication. Ultrasonics 2024; 138:107216. [PMID: 38070441 DOI: 10.1016/j.ultras.2023.107216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/10/2023] [Accepted: 12/04/2023] [Indexed: 04/02/2024]
Abstract
This research investigates the temperature-dependent variation of diverse acoustic parameters in samples of edible oils. It further supplements previous studies on the effectiveness of non-destructive ultrasonic inspection in the authentication of edible oils. The oils under examination consist of pure samples of olive, sunflower, and corn oils, as well as variable mixtures ranging from 20 % to 80 % of the more expensive one (olive oil) with the other two, simulating a hypothetical adulteration scenario. The studied acoustic parameters are related to the velocity, attenuation, and frequency components present in 2.25 MHz ultrasonic waves propagating through the oil samples within a temperature range of 24 °C to 34 °C. The results confirm the suitability of non-destructive ultrasonic inspection in evaluating and detecting the adulteration of olive oil with economically inferior oils such as sunflower and corn. Additionally, this study provides added value by laying the groundwork for a non-destructive and innovative determination of the fatty acid profile of an edible oil based on the evolution of the aforementioned ultrasonic parameters with temperature. The findings hold potential for enhancing the authenticity assessment and quality control of edible oils in the food industry.
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Affiliation(s)
- A Jiménez
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - M Rufo
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - J M Paniagua
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - A González-Mohino
- Department of Food Technology, Research Institute of Meat and Meat Products, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain.
| | - L S Olegario
- Department of Food Technology, Research Institute of Meat and Meat Products, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
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Contreras E, Jurado-Ezqueta M, Pimentel R, Serrano L, Hidalgo C, Jiménez A, Polo MJ. Assessment of seasonal and annual patterns in phosphorus content in a monitored catchment through a partitioning approach based on hydrometeorological data. Environ Res 2024; 242:117501. [PMID: 37996003 DOI: 10.1016/j.envres.2023.117501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/21/2023] [Accepted: 10/23/2023] [Indexed: 11/25/2023]
Abstract
High amounts of phosphorus (P) in rivers come mainly from two sources: fertilizers washed off from agricultural and urban areas by runoff water (non-point sources) and urban and industrial development which are translated in P discharges from wastewater treatment plants (WWTP). This work analyses the content of P in water for nearly 40 years inquiring into the origin of the sources, based on the hypothesis of runoff generation from the detection of river streamflow increases during the P contribution episode and the previous precipitation. For this purpose, the Guadaira River, which is located in the South of Spain and has a drainage surface of 1524 km2, was selected. In this watershed agricultural land use converges with numerous human activities resulting in high pressures on water quality. We found 40% of the P contribution episodes found seem to come from the runoff generated after the heaviest rainfall events, which normally occur between November and May. The remaining 60% of the P contribution episodes were found to be linked to point sources, which become more relevant from June to September, reaching the highest concentration values (6-17 mg/L). The results highlight that the target phosphate concentration value of 0.34 mg PO4/L imposed by the national legislation for a good state following the Water Framework Directive 2000/60/EC is exceeded by 96% of the measurements during the period from 1981 to 2022. On a monthly basis, PO4 loads showed a linear relationship with river streamflow (R2 = 0.94). However, on field measurements scale, a potential relationship between both variables was found, which changed according to the improvement in the wastewater treatment and facilities for 1982-1994, 1995-2017 and 2018-2022. In these three periods, different significant decreasing trends of the P content were found, mainly marked by the setup of each individual WWTP.
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Affiliation(s)
- E Contreras
- Fluvial Dynamics and Hydrology Research Group, Andalusian Institute for Earth System Research, University of Cordoba, Cordoba, Spain.
| | - M Jurado-Ezqueta
- Fluvial Dynamics and Hydrology Research Group, Andalusian Institute for Earth System Research, University of Cordoba, Cordoba, Spain.
| | - R Pimentel
- Fluvial Dynamics and Hydrology Research Group, Andalusian Institute for Earth System Research, University of Cordoba, Cordoba, Spain.
| | - L Serrano
- Plant Biology and Ecology Department, Faculty of Biology, University of Seville, Seville, Spain.
| | - C Hidalgo
- Physical, Chemical and Natural Systems Department, Pablo de Olavide University, Seville, Spain.
| | - A Jiménez
- Physical, Chemical and Natural Systems Department, Pablo de Olavide University, Seville, Spain.
| | - M J Polo
- Fluvial Dynamics and Hydrology Research Group, Andalusian Institute for Earth System Research, University of Cordoba, Cordoba, Spain.
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Jiménez A, Rufo M, Paniagua JM, González-Mohino A, Olegario LS. Authentication of pure and adulterated edible oils using non-destructive ultrasound. Food Chem 2023; 429:136820. [PMID: 37531872 DOI: 10.1016/j.foodchem.2023.136820] [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: 11/03/2022] [Revised: 03/12/2023] [Accepted: 07/03/2023] [Indexed: 08/04/2023]
Abstract
At present, the quality of edible oil is evaluated using traditional analysis techniques that are generally destructive. Therefore, efforts are being made to find alternative methods with non-destructive techniques such as Ultrasound. This work aims to confirm the feasibility of non-destructive ultrasonic inspection to characterise and detect fraudulent practices in olive oil due to adulteration with two other edible vegetable oils (sunflower and corn). For this purpose, pulsed ultrasonic signals with a frequency of 2.25 MHz have been used. The samples of pure olive oil were adulterated with the other two in variable percentages between 20% and 80%. Moreover, the viscosity and density values were measured. Both these physicochemical and acoustic parameters were obtained at 24 °C and 30 °C and linearly correlated with each other. The results indicate the sensitivity of the method at all levels of adulteration studied. The responses obtained through the parameters related to the components of velocity, attenuation, and frequency of the ultrasonic waves are complementary to each other. This allows concluding that the classification of pure and adulterated oil samples is possible through non-destructive ultrasonic inspection.
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Affiliation(s)
- A Jiménez
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - M Rufo
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - J M Paniagua
- Department of Applied Physics, Research Institute of Meat and Meat Products, School of Technology, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
| | - A González-Mohino
- Department of Food Technology, Research Institute of Meat and Meat Products, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain.
| | - L S Olegario
- Department of Food Technology, Research Institute of Meat and Meat Products, Universidad de Extremadura, Avenida de la Universidad s/n, 10003 Cáceres, Spain
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Lorente L, Martín MM, Ortiz-López R, Pérez-Cejas A, Ferrer-Moure C, Jiménez A, González-Rivero AF. Association between septic patient mortality and blood survivin concentrations. Med Intensiva 2023; 47:84-89. [PMID: 36272905 DOI: 10.1016/j.medine.2021.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/26/2021] [Indexed: 01/26/2023]
Abstract
OBJECTIVE Survivin is a member of inhibitors of apoptosis proteins family. There are not data about the association between mortality of septic patients and blood survivin concentrations. Therefore, the objective of this study was to determine whether exist that association. DESIGN Observational and prospective study. SETTING Three Spanish Intensive Care Units. PATIENTS Patients with sepsis or septic shock according to Sepsis-3 Consensus criteria. INTERVENTIONS Serum survivin concentrations were determined at moment of sepsis diagnosis. MAIN VARIABLE OF INTEREST Mortality at 30 days. RESULTS A total of 204 patients were included in the study, of which 75 (36.8%) died in the first 30 days. Lower age (p<0.001), serum lactic acid levels (p=0.001), rate of septic shock (p=0.001) and SOFA (p<0.001), and higher serum survivin levels (p=0.001) exhibited surviving (n=129) than non-surviving patients (n=75). We found in multiple logistic regression analysis an association between serum survivin concentrations and mortality independently of SOFA, lactic acid, age, INR, activated partial thromboplastin time (aPTT) and empiric antimicrobial treatment adequate (OR=0.968; 95% CI=0.946-0.990; p=0.005), and also independently of APACHE-II, lactic acid, platelet, INR, aPTT and empiric antimicrobial treatment adequate (OR=0.966; 95% CI=0.943-0.989; p=0.004). CONCLUSIONS There is an association between septic patient mortality and low blood survivin concentrations.
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Affiliation(s)
- L Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, La Laguna, Tenerife, Spain.
| | - M M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora Candelaria, Santa Cruz Tenerife, Spain
| | - R Ortiz-López
- Intensive Care Unit, Hospital General de La Palma, Breña Alta, La Palma, Spain
| | - A Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Tenerife, Spain
| | - C Ferrer-Moure
- Laboratory Department, Hospital Universitario de Canarias, Tenerife, Spain
| | - A Jiménez
- Research Unit, Hospital Universitario de Canarias, La Laguna, Tenerife, Spain
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Bañares J, Aceituno L, Jiménez A, Maynard A, Escobar ED, Alemán C. Pseudovesicular appearance in Sweet's syndrome: important yet easily missed - Authors' reply. Lancet 2023; 401:104. [PMID: 36641197 DOI: 10.1016/s0140-6736(22)02462-x] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 11/25/2022] [Indexed: 01/15/2023]
Affiliation(s)
- Juan Bañares
- Internal Medicine Department, Vall d'Hebron University Hospital, Barcelona 08035, Spain.
| | - Laia Aceituno
- Internal Medicine Department, Vall d'Hebron University Hospital, Barcelona 08035, Spain
| | - Alba Jiménez
- Department of Gastroenterology, Vall d'Hebron University Hospital, Barcelona 08035, Spain
| | - Avonello Maynard
- Department of Gastroenterology, Vall d'Hebron University Hospital, Barcelona 08035, Spain
| | | | - Carmen Alemán
- Internal Medicine Department, Vall d'Hebron University Hospital, Barcelona 08035, Spain
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Díaz T, Ortega-Pinazo J, Martínez B, Jiménez A, Gómez-Zumaquero JM, Caracuel Z, Hortas ML, Ferro P. Measurement of yield and quality of DNA in human buffy coat is extraction method dependent. Prep Biochem Biotechnol 2022:1-8. [PMID: 36121058 DOI: 10.1080/10826068.2022.2119574] [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] [Indexed: 10/14/2022]
Abstract
During the last few years, an important element in the improvement of the molecular biology techniques has been the necessity for availability of high quality and functionality DNA. Several DNA extraction procedures with different results in both performance and quality, have been proposed. In this study our objective was to determine the most reliable extraction method that balances DNA quantity, and to assess the sample quantification of the fluorometric DNA quantification methods. For this, blood extracted by venopunction from 20 healthy volunteers was used to obtain DNA from buffy coat, and 4 commercial DNA extraction kits were assessed as well as two fluorometric DNA quantification methods with protocols of different complexity. Results suggest that manual methods achieve higher quality and larger yields of DNA. DNA purity obtained with the 4 extraction kits evaluated through the 260/280 and 260/230 ratio showed that the Qiacube kit fulfilled the criteria established in this work, followed very close by the Flexigene kit. On the other hand, the fluorometric DNA methods used in the samples quantification showed a higher variability when using QuantiFlour method, obtaining better results probably due to the simplicity of this protocol.
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Affiliation(s)
- T Díaz
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
| | - J Ortega-Pinazo
- Neuroimmunology and Neuroinflammation Group, Instituto de Investigación Biomédica de Málaga-IBIMA, UGC Neurociencias, Hospital Regional Universitario de Málaga, Malaga, Spain
| | - B Martínez
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
| | - A Jiménez
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
| | - J M Gómez-Zumaquero
- Genomic ECAI, Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain
| | - Z Caracuel
- Costa del Sol Sanitary Agency, Sanitary District of Málaga, Malaga, Spain
| | - M L Hortas
- Costa del Sol Sanitary Agency, Sanitary District of Málaga, Malaga, Spain
| | - P Ferro
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga-IBIMA, Malaga, Spain.,Unidad Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen de la Victoria, Málaga, Spain
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Bañares J, Aceituno L, Jiménez A, Maynard A, Escobar ED, Alemán C. Sweet's syndrome and Crohn's disease diagnosed simultaneously. Lancet 2022; 399:2155. [PMID: 35658996 DOI: 10.1016/s0140-6736(22)00915-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/17/2022] [Accepted: 05/12/2022] [Indexed: 01/18/2023]
Affiliation(s)
- Juan Bañares
- Internal Medicine Department, Vall d'Hebron University Hospital, Barcelona, Spain.
| | - Laia Aceituno
- Internal Medicine Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Alba Jiménez
- Department of Gastroenterology, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Avonello Maynard
- Department of Gastroenterology, Vall d'Hebron University Hospital, Barcelona, Spain
| | | | - Carmen Alemán
- Internal Medicine Department, Vall d'Hebron University Hospital, Barcelona, Spain
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Lorente L, Martín MM, Pérez-Cejas A, González-Rivero AF, Ramos-Gómez L, Solé-Violán J, Cáceres JJ, Villacampa-Jiménez JJ, Jiménez A. Association between blood caspase-8 levels and mortality of patients with malignant middle cerebral artery infarction. Med Intensiva 2022; 46:305-311. [PMID: 35688578 DOI: 10.1016/j.medine.2021.03.004] [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: 11/23/2020] [Accepted: 03/08/2021] [Indexed: 06/15/2023]
Abstract
OBJECTIVE High concentrations of caspase-8 (main initiator caspase of apoptosis extrinsic pathway) have been found in brain tissue from traumatic brain injury patients and in blood of patients with different diseases. However, there are not data on blood caspase-8 concentrations in ischemic stroke patients. Therefore, the objective of this study was to determine whether there is an association between blood caspase-8 concentrations and the probability and speed of mortality at 30 days in patients with malignant middle cerebral artery infarction (MMCAI). DESIGN Observational prospective study. SETTING Five Intensive Care Units (ICU). PATIENTS Patients with severe malignant middle cerebral artery infarction (MMCAI) defined as acute infarction in more than of 50% of that territory and Glasgow Coma Scale (GCS)<9. INTERVENTIONS Determination of serum caspase-8 levels when MMCAI was diagnosed. MAIN VARIABLES OF INTEREST Mortality at 30 days and time until this event. RESULTS Severe MMCAI patients (n=28) compared to survivor patients (n=28) showed higher serum caspase-8 concentrations (p<0.001), lower platelet count (p=0.01) and lower GCS (p=0.002). We found an area under the curve for mortality prediction of 78% (95% CI=65%-91%; p<0.001) by serum caspase-8 levels. Kaplan-Meier analysis found higher mortality rate in patients with serum caspase-8 levels >62.8ng/mL (hazard ratio=11.2; 95% CI=4.4-28.4; p<0.001). CONCLUSIONS The association of high blood caspase-8 concentrations with the rate and the velocity of 30-day mortality in MMCAI patients is the main new finding of our study.
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Affiliation(s)
- L Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Santa Cruz de Tenerife, Spain.
| | - M M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario, s/n, Santa Cruz de Tenerife 38010, Spain
| | - A Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Tenerife, Spain
| | - A F González-Rivero
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - L Ramos-Gómez
- Intensive Care Unit, Hospital General de La Palma, Buenavista de Arriba, s/n, Breña Alta, La Palma 38713, Spain
| | - J Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, CIBERES, Barranco de la Ballena, s/n, Las Palmas de Gran Canaria 35010, Spain
| | - J J Cáceres
- Intensive Care Unit, Hospital Insular, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria 35016, Spain
| | - J J Villacampa-Jiménez
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Tenerife, Spain
| | - A Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Santa Cruz de Tenerife, Spain
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Jiménez A, Lu Y, Jambhekar A, Lahav G. Principles, mechanisms and functions of entrainment in biological oscillators. Interface Focus 2022; 12:20210088. [PMID: 35450280 PMCID: PMC9010850 DOI: 10.1098/rsfs.2021.0088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 12/17/2021] [Accepted: 03/07/2022] [Indexed: 12/12/2022] Open
Abstract
Entrainment is a phenomenon in which two oscillators interact with each other, typically through physical or chemical means, to synchronize their oscillations. This phenomenon occurs in biology to coordinate processes from the molecular to organismal scale. Biological oscillators can be entrained within a single cell, between cells or to an external input. Using six illustrative examples of entrainable biological oscillators, we discuss the distinctions between entrainment and synchrony and explore features that contribute to a system's propensity to entrain. Entrainment can either enhance or reduce the heterogeneity of oscillations within a cell population, and we provide examples and mechanisms of each case. Finally, we discuss the known functions of entrainment and discuss potential functions from an evolutionary perspective.
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Affiliation(s)
- Alba Jiménez
- Department of Systems Biology, Blavatnik Institute at Harvard Medical School, Boston, MA 02115, USA
| | - Ying Lu
- Department of Systems Biology, Blavatnik Institute at Harvard Medical School, Boston, MA 02115, USA
| | - Ashwini Jambhekar
- Department of Systems Biology, Blavatnik Institute at Harvard Medical School, Boston, MA 02115, USA
- Ludwig Center at Harvard, Boston, MA 02115, USA
| | - Galit Lahav
- Department of Systems Biology, Blavatnik Institute at Harvard Medical School, Boston, MA 02115, USA
- Ludwig Center at Harvard, Boston, MA 02115, USA
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Jiménez A, Lu D, Kalocsay M, Berberich MJ, Balbi P, Jambhekar A, Lahav G. Time‐series transcriptomics and proteomics reveal alternative modes to decode p53 oscillations. Mol Syst Biol 2022; 18:e10588. [PMID: 35285572 PMCID: PMC8919251 DOI: 10.15252/msb.202110588] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 02/16/2022] [Accepted: 02/19/2022] [Indexed: 12/21/2022] Open
Affiliation(s)
- Alba Jiménez
- Department of Systems Biology Blavatnik Institute at Harvard Medical School Boston MA USA
| | - Dan Lu
- Department of Systems Biology Blavatnik Institute at Harvard Medical School Boston MA USA
| | - Marian Kalocsay
- Department of Systems Biology Blavatnik Institute at Harvard Medical School Boston MA USA
- Laboratory of Systems Pharmacology Blavatnik Institute at Harvard Medical School Boston MA USA
| | - Matthew J Berberich
- Laboratory of Systems Pharmacology Blavatnik Institute at Harvard Medical School Boston MA USA
- Center for Protein Degradation Dana‐Farber Cancer Institute Boston MA USA
| | - Petra Balbi
- Department of Systems Biology Blavatnik Institute at Harvard Medical School Boston MA USA
| | - Ashwini Jambhekar
- Department of Systems Biology Blavatnik Institute at Harvard Medical School Boston MA USA
- Ludwig Center at Harvard Medical School Boston MA USA
| | - Galit Lahav
- Department of Systems Biology Blavatnik Institute at Harvard Medical School Boston MA USA
- Ludwig Center at Harvard Medical School Boston MA USA
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Lorente L, Jiménez A. Validation of medical researchs. Med Intensiva 2022; 46:172-173. [PMID: 34996743 PMCID: PMC8730692 DOI: 10.1016/j.medine.2021.12.009] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 02/21/2021] [Indexed: 11/25/2022]
Affiliation(s)
- L Lorente
- Unidad de Cuidados Intensivos, Hospital Universitario de Canarias, La Laguna, Tenerife, Spain.
| | - A Jiménez
- Unidad de Investigación, Hospital Universitario de Canarias, La Laguna, Tenerife, Spain
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12
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Lorente L, Gómez-Bernal F, Martín M, Navarro-Gonzálvez J, Argueso M, Perez A, Ramos-Gómez L, Solé-Violán J, Marcos y Ramos J, Ojeda N, Jiménez A. High serum nitrates levels in non-survivor COVID-19 patients. Medicina Intensiva (English Edition) 2022; 46:132-139. [PMID: 35221002 PMCID: PMC8867537 DOI: 10.1016/j.medine.2020.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 10/25/2020] [Indexed: 02/07/2023]
Abstract
Objective Higher blood nitrate and nitrite levels have been found in coronavirus disease 2019 (COVID-19) patients than in healthy subjects. The present study explores the potential association between serum nitrate levels and mortality in COVID-19 patients. Design A prospective observation study was carried out. Setting Eight Intensive Care Units (ICUs) from 6 hospitals in the Canary Islands (Spain). Patients COVID-19 patients admitted to the ICU. Interventions Determination of serum nitrate levels at ICU admission. Main variable of interest Mortality at 30 days. Results Non-surviving (n = 11) compared to surviving patients (n = 42) showed higher APACHE-II (p < 0.001) and SOFA scores (p = 0.004), and higher serum nitrate levels (p = 0.001). Logistic regression analyses showed serum nitrate levels to be associated to 30-day mortality after controlling for SOFA (OR = 1.021; 95%CI = 1.006–1.036; p = 0.01) or APACHE-II (OR = 1.023; 95%CI = 1.006–1.041; p = 0.01). There were no differences in the area under the curve (AUC) for mortality prediction by serum nitrate levels (AUC = 83%; 95%CI = 73–92%; p < 0.001), APACHE II (AUC = 85%; 95%CI = 75–96%; p < 0.001) and SOFA (AUC = 78%; 95%CI = 63–92%; p = 0.005) based on the DeLong method. The Kaplan–Meier analysis found patients with serum nitrates levels > 68.4 μmol/l to have a higher mortality rate (hazard ratio = 138.8; 95%CI = 22.3–863.9; p < 0.001). Conclusions The main novel finding was the association between serum nitrate levels and mortality in COVID-19 patients controlling for the SOFA or APACHE-II scores, though larger studies are needed to confirm this observation.
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Lorente L, Martín M, Ortiz-López R, Pérez-Cejas A, Ferrer-Moure C, Jiménez A, González-Rivero A. Association between septic patient mortality and blood survivin concentrations. Med Intensiva 2022. [DOI: 10.1016/j.medin.2021.12.014] [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: 10/19/2022]
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Alcalá-González L, Jiménez C, Cortina V, Jiménez A, Cerdá M, Johansson E, Olivera P, Santamaría A, Alonso-Cotoner C. Severity of gastrointestinal bleeding is similar between patients receiving direct oral anticoagulants or vitamin K antagonists. Rev Esp Enferm Dig 2022; 114:599-604. [PMID: 35086339 DOI: 10.17235/reed.2022.8388/2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Gastrointestinal bleeding (GIB) is a common adverse event related to anticoagulation therapy. However, evidence comparing the severity, aetiology, and outcomes of GIB in patients taking direct oral anticoagulants (DOAC) vs. vitamin K antagonists (VKA) is scarce. AIMS To evaluate the severity, aetiology and outcomes of GIB in patients under DOACs compared to VKA. METHODS Patients under oral anticoagulant therapy admitted to the emergency department with acute GIB were prospectively recruited from July 2016 to January 2018 at a tertiary referral hospital. Demographic and clinical outcomes were obtained from medical records. Severity of the GIB event was classified as mild, major or severe according to clinical presentation and type of support needed. Aetiology and location of bleeding, number of packed red blood cells transfused (PRBC) and length of hospital stay were recorded until discharge or in-hospital death. RESULTS A total of 208 patients with acute GIB under oral anticoagulant treatment were recruited: 119 patients on VKA, and 89 patients on DOAC with similar characteristics. Thirty-one patients had severe GIB; 134 major and 43 mild, with no differences in severity, number of PRBC and length of hospital stay between groups. Peptic disease was the most frequent aetiology of GIB in patients on VKA (20.2 % vs. 13.6%, p=0.20). Diverticular bleeding was the most frequent in patients on DOAC (14.3% vs. 24.8%, p= 0.056). CONCLUSIONS Severity and clinical outcomes of GIB are similar between patients on DOAC and patients on VKA, regardless of aetiology of GIB.
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Affiliation(s)
| | - César Jiménez
- Gastroenterology, Hospital Universitari Vall d'Hebron
| | | | - Alba Jiménez
- Gastroenterology, Hospital Universitari Vall d'Hebron
| | - María Cerdá
- Hematology, Hospital Universitari Vall d'Hebron
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15
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Lorente L, Martín MM, Ortiz-López R, González-Rivero AF, Pérez-Cejas A, Martín M, Gonzalez V, Pérez A, Rodin M, Jiménez A. Blood caspase-8 concentrations and mortality among septic patients. Med Intensiva 2022; 46:8-13. [PMID: 34991877 DOI: 10.1016/j.medine.2020.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/27/2020] [Indexed: 06/14/2023]
Abstract
OBJECTIVE No data are available on blood caspase-8 concentrations (the initiator caspase in the extrinsic apoptosis pathway) in septic patients. The present study thus describes the blood caspase-8 concentrations in survivors and non-survivors, and examines the possible association between blood caspase-8 concentrations and mortality in septic patients. DESIGN A prospective observational study was carried out. SETTING Three Spanish Intensive Care Units. PATIENTS Septic patients. INTERVENTIONS Serum caspase-8 concentrations were determined at the diagnosis of sepsis. MAIN VARIABLE OF INTEREST Mortality after 30 days. RESULTS Patients not surviving at day 30 (n=81) compared to surviving patients (n=140) showed higher serum caspase-8 levels (p<0.001). Multiple logistic regression analysis found an association between serum caspase-8 levels>43.5ng/ml and mortality (OR=3.306; 95%CI=1.619-6.753; p=0.001). The area under the curve (AUC) for mortality predicted by serum caspase-8 levels was 67% (95% CI=60-73%; p<0.001). CONCLUSIONS The novel findings of our study were that blood caspase-8 concentrations are higher in non-survivors than in survivors, and that there is an association between blood caspase-8 concentrations and mortality in septic patients.
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Affiliation(s)
- L Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Tenerife, Spain.
| | - M M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora Candelaria, Crta Rosario s/n., Santa Cruz Tenerife 38010, Spain
| | - R Ortiz-López
- Intensive Care Unit, Hospital General de La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma 38713, Spain
| | - A F González-Rivero
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - A Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Tenerife, Spain
| | - M Martín
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra s/n., La Laguna, Santa Cruz de Tenerife 38320, Spain
| | - V Gonzalez
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra s/n., La Laguna, Santa Cruz de Tenerife 38320, Spain
| | - A Pérez
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra s/n., La Laguna, Santa Cruz de Tenerife 38320, Spain
| | - M Rodin
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra s/n., La Laguna, Santa Cruz de Tenerife 38320, Spain
| | - A Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Tenerife, Spain
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16
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Lorente L, Martín MM, Pérez-Cejas A, González-Rivero AF, Ramos-Gómez L, Solé-Violán J, Cáceres JJ, Villacampa-Jiménez JJ, Jiménez A. Association between blood caspase-8 levels and mortality of patients with malignant middle cerebral artery infarction. Med Intensiva 2021; 46:S0210-5691(21)00036-X. [PMID: 33926751 DOI: 10.1016/j.medin.2021.03.001] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/09/2021] [Accepted: 03/08/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVE High concentrations of caspase-8 (main initiator caspase of apoptosis extrinsic pathway) have been found in brain tissue from traumatic brain injury patients and in blood of patients with different diseases. However, there are not data on blood caspase-8 concentrations in ischemic stroke patients. Therefore, the objective of this study was to determine whether there is an association between blood caspase-8 concentrations and the probability and speed of mortality at 30 days in patients with malignant middle cerebral artery infarction (MMCAI). DESIGN Observational prospective study. SETTING Five Intensive Care Units (ICU). PATIENTS Patients with severe malignant middle cerebral artery infarction (MMCAI) defined as acute infarction in more than of 50% of that territory and Glasgow Coma Scale (GCS)<9. INTERVENTIONS Determination of serum caspase-8 levels when MMCAI was diagnosed. MAIN VARIABLES OF INTEREST Mortality at 30 days and time until this event. RESULTS Severe MMCAI patients (n=28) compared to survivor patients (n=28) showed higher serum caspase-8 concentrations (p<0.001), lower platelet count (p=0.01) and lower GCS (p=0.002). We found an area under the curve for mortality prediction of 78% (95% CI=65%-91%; p<0.001) by serum caspase-8 levels. Kaplan-Meier analysis found higher mortality rate in patients with serum caspase-8 levels >62.8ng/mL (hazard ratio=11.2; 95% CI=4.4-28.4; p<0.001). CONCLUSIONS The association of high blood caspase-8 concentrations with the rate and the velocity of 30-day mortality in MMCAI patients is the main new finding of our study.
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Affiliation(s)
- L Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Santa Cruz de Tenerife, Spain.
| | - M M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario, s/n, Santa Cruz de Tenerife 38010, Spain
| | - A Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Tenerife, Spain
| | - A F González-Rivero
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - L Ramos-Gómez
- Intensive Care Unit, Hospital General de La Palma, Buenavista de Arriba, s/n, Breña Alta, La Palma 38713, Spain
| | - J Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, CIBERES, Barranco de la Ballena, s/n, Las Palmas de Gran Canaria 35010, Spain
| | - J J Cáceres
- Intensive Care Unit, Hospital Insular, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria 35016, Spain
| | - J J Villacampa-Jiménez
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Tenerife, Spain
| | - A Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna 38320, Santa Cruz de Tenerife, Spain
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17
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López-Fernández J, López-Valenciano A, Mayo X, Liguori G, Lamb MA, Copeland RJ, Jiménez A. No changes in adolescent's sedentary behaviour across Europe between 2002 and 2017. BMC Public Health 2021; 21:784. [PMID: 33892700 PMCID: PMC8067647 DOI: 10.1186/s12889-021-10860-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 11/19/2020] [Accepted: 04/13/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Public health organizations have been alerted to the high levels of sedentary behaviour (SB) among adolescents as well as to the health and social consequences of excess sedentary time. However, SB changes of the European Union (EU) adolescents over time have not been reported yet. This study aimed to identify SB of the EU adolescents (15-17 years) in four-time points (2002, 2005, 2013 and 2017) and to analyse the prevalence of SB according to the sex. METHODS SB of 2542 adolescents (1335 boys and 1207 girls) as a whole sample and country-by-country was analysed in 2002, 2005, 2013, and 2017 using the Sport and Physical Activity EU Special Eurobarometers' data. SB was measured using the sitting time question from the short version of the International Physical Activity Questionnaire (IPAQ), such that 4h30min of daily sitting time was the delineating point to determine excess SB behaviour (≥4h30min of sitting time) or not (≤4h30min of sitting time). A χ2 test was used to compare the prevalence of SB between survey years. Furthermore, SB prevalence between sexes was analysed using a Z-Score test for two population proportions. RESULTS The prevalence of SB among EU adolescents across each of the four survey years ranged from 74.2 and 76.8%, rates that are considered high. High levels of SB were also displayed by both sexes (girls: 76.8 to 81.2%; boys: 71.7 to 76.7%). No significant differences in the prevalence of SB among years (p > 0.05) were found for the whole sample, and for either girls or boys. Also, no significant differences in the prevalence of SB between girls and boys were found. CONCLUSION The SB prevalence in European adolescents is extremely high (76.8% in 2017) with no differences between girls and boys. No significant improvements have been seen between 2002 and 2017. Eurobarometer should increase the adolescents' sample to make possible benchmarking comparisons among the EU countries and extend the survey to the younger children population.
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Affiliation(s)
- J López-Fernández
- Centre for Exercise, Sport and Life Sciences (CSELS), Coventry University, Coventry, West Midlands, UK.,GO fit LAB, Ingesport, Madrid, Spain
| | - A López-Valenciano
- GO fit LAB, Ingesport, Madrid, Spain. .,Observatory of Healthy & Active Living of Spain Active Foundation, Centre for Sport Studies, King Juan Carlos University, Madrid, Spain.
| | - X Mayo
- GO fit LAB, Ingesport, Madrid, Spain.,Observatory of Healthy & Active Living of Spain Active Foundation, Centre for Sport Studies, King Juan Carlos University, Madrid, Spain
| | - G Liguori
- The College of Health Sciences, University of Rhode Island, Kingston, RI, USA
| | - M A Lamb
- Centre for Behavioural Science and Applied Psychology, Sheffield Hallam University, Sheffield, UK.,Advanced Well-Being Research Centre, Sheffield Hallam University, Sheffield, UK
| | - R J Copeland
- Advanced Well-Being Research Centre, Sheffield Hallam University, Sheffield, UK.,The National Centre for Sport and Exercise Medicine, Sheffield, UK
| | - A Jiménez
- GO fit LAB, Ingesport, Madrid, Spain.,Observatory of Healthy & Active Living of Spain Active Foundation, Centre for Sport Studies, King Juan Carlos University, Madrid, Spain.,Advanced Well-Being Research Centre, Sheffield Hallam University, Sheffield, UK
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18
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Lorente L, Jiménez A. Validation of medical researchs. Med Intensiva 2021; 46:S0210-5691(21)00030-9. [PMID: 33810872 PMCID: PMC8008251 DOI: 10.1016/j.medin.2021.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 02/21/2021] [Indexed: 11/29/2022]
Affiliation(s)
- L Lorente
- Unidad de Cuidados Intensivos, Hospital Universitario de Canarias, La Laguna, Tenerife, España.
| | - A Jiménez
- Unidad de Investigación, Hospital Universitario de Canarias, La Laguna, Tenerife, España
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19
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García-Herreros LG, Jiménez A, Cabrera LF, Vinck EE, Pedraza M. Early presentation of post-intubation tracheoesophageal fistula with severe tracheal stenosis in COVID-19 patient. Ann R Coll Surg Engl 2021; 103:e144-e147. [PMID: 33682425 DOI: 10.1308/rcsann.2020.7065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The current global COVID-19 pandemic is caused by the novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Currently, acquired tracheoesophageal fistulas are mainly iatrogenic lesions produced by prolonged tracheal intubation. We present a case of tracheoesophageal fistula with severe tracheal stenosis following tracheal intubation in a patient with SARS-CoV-2 infection.
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Affiliation(s)
- L G García-Herreros
- Fundación Santa Fé de Bogotá, Bogotá, Colombia.,Universidad de los Andes, Bogotá, Colombia
| | - A Jiménez
- Fundación Santa Fé de Bogotá, Bogotá, Colombia
| | - L F Cabrera
- Fundación Santa Fé de Bogotá, Bogotá, Colombia.,Universidad de los Andes, Bogotá, Colombia.,Universidad El Bosque, Bogota, Colombia
| | - E E Vinck
- Universidad El Bosque, Bogota, Colombia.,Dr Horacio Oduber Hospitaal, Aruba
| | - M Pedraza
- Universidad El Bosque, Bogota, Colombia
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20
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Lorente L, Martín MM, Franco A, Barrios Y, Cáceres JJ, Solé-Violán J, Perez A, Marcos Y Ramos JA, Ramos-Gómez L, Ojeda N, Jiménez A. HLA genetic polymorphisms and prognosis of patients with COVID-19. Med Intensiva 2021; 45:96-103. [PMID: 38620408 PMCID: PMC7474921 DOI: 10.1016/j.medin.2020.08.004] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/22/2020] [Accepted: 08/07/2020] [Indexed: 12/22/2022]
Abstract
Objective Different genetic polymorphisms of human leukocyte antigen (HLA) have been associated with the risk and prognosis of autoimmune and infectious diseases. The objectives of this study were to determine whether there is an association between HLA genetic polymorphisms and the susceptibility to and mortality of coronavirus disease 2019 (COVID-19) patients. Design Observational and prospective study. Setting Eight Intensive Care Units (ICU) from 6 hospitals of Canary Islands (Spain). Patients COVID-19 patients admitted in ICU and healthy subjects. Interventions Determination of HLA genetic polymorphisms. Main variable of interest Mortality at 30 days. Results A total of 3886 healthy controls and 72 COVID-19 patients (10 non-survivors and 62 survivor patients at 30 days) were included. We found a trend to a higher rate of the alleles HLA-A*32 (p = 0.004) in healthy controls than in COVID-19 patients, and of the alleles HLA-B*39 (p = 0.02) and HLA-C*16 (p = 0.02) in COVID-19 patients than in healthy controls; however, all these p-values were not significant after correction for multiple comparisons. Logistic regression analysis showed that the presence of certain alleles was associated with higher mortality, such as the allele HLA-A*11 after controlling for SOFA (OR = 7.693; 95% CI = 1.063-55.650; p = 0.04) or APACHE-II (OR = 11.858; 95% CI = 1.524-92.273; p = 0.02), the allele HLA-C*01 after controlling for SOFA (OR = 11.182; 95% CI = 1.053-118.700; p = 0.04) or APACHE-II (OR = 17.604; 95% CI = 1.629-190.211; p = 0.02), and the allele HLA-DQB1*04 after controlling for SOFA (OR = 9.963; 95% CI = 1.235-80.358; p = 0.03). Conclusions The new finding from our preliminary study of small sample size was that HLA genetic polymorphisms could be associated with COVID-19 mortality; however, studies with a larger sample size before definitive conclusions can be drawn.
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Affiliation(s)
- L Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - M M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n., Santa Cruz de Tenerife 38010, Spain
| | - A Franco
- Immunology Unit of Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - Y Barrios
- Immunology Unit of Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - J J Cáceres
- Intensive Care Unit, Hospital Insular, Plaza Dr. Pasteur s/n., Las Palmas de Gran Canaria 35016, Spain
| | - J Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n., Las Palmas de Gran Canaria 35010, Spain
| | - A Perez
- Internal Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - J A Marcos Y Ramos
- Intensive Care Unit, Hospital Doctor José Molina Orosa, Ctra. Arrecife-Tinajo, km 1.300, Arrecife, Lanzarote 35550, Spain
| | - L Ramos-Gómez
- Intensive Care Unit, Hospital General La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma 38713, Spain
| | - N Ojeda
- Department of Anesthesiology, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n., Las Palmas de Gran Canaria 35010, Spain
| | - A Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Santa Cruz de Tenerife, Spain
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21
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Lorente L, Martín M, Franco A, Barrios Y, Cáceres J, Solé-Violán J, Perez A, Marcos y Ramos J, Ramos-Gómez L, Ojeda N, Jiménez A, Lorente L, Franco A, Barrios Y, Perez A, Jiménez A, Pérez-Cejas A, Pérez-Llombet A, Uribe L, González L, Alvarez R, Martín MM, Alcoba-Flórez J, Estupiñan A, Cáceres JJ, Vega P, Gonzalez L, Solé-Violán J, Ojeda N, López S, Rodríguez-Pérez A, Domínguez C, Marcos y Ramos JA, Zapata MF, Ramos-Gómez L, Ortiz-López R. HLA genetic polymorphisms and prognosis of patients with COVID-19. Medicina Intensiva (English Edition) 2021. [PMCID: PMC7905376 DOI: 10.1016/j.medine.2020.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Objective Different genetic polymorphisms of human leukocyte antigen (HLA) have been associated with the risk and prognosis of autoimmune and infectious diseases. The objectives of this study were to determine whether there is an association between HLA genetic polymorphisms and the susceptibility to and mortality of coronavirus disease 2019 (COVID-19) patients. Design Observational and prospective study. Setting Eight Intensive Care Units (ICU) from 6 hospitals of Canary Islands (Spain). Patients COVID-19 patients admitted in ICU and healthy subjects. Interventions Determination of HLA genetic polymorphisms. Main variable of interest Mortality at 30 days. Results A total of 3886 healthy controls and 72 COVID-19 patients (10 non-survivors and 62 survivor patients at 30 days) were included. We found a trend to a higher rate of the alleles HLA-A*32 (p = 0.004) in healthy controls than in COVID-19 patients, and of the alleles HLA-B*39 (p = 0.02) and HLA-C*16 (p = 0.02) in COVID-19 patients than in healthy controls; however, all these p-values were not significant after correction for multiple comparisons. Logistic regression analysis showed that the presence of certain alleles was associated with higher mortality, such as the allele HLA-A*11 after controlling for SOFA (OR = 7.693; 95% CI = 1.063–55.650; p = 0.04) or APACHE-II (OR = 11.858; 95% CI = 1.524–92.273; p = 0.02), the allele HLA-C*01 after controlling for SOFA (OR = 11.182; 95% CI = 1.053–118.700; p = 0.04) or APACHE-II (OR = 17.604; 95% CI = 1.629–190.211; p = 0.02), and the allele HLA-DQB1*04 after controlling for SOFA (OR = 9.963; 95% CI = 1.235–80.358; p = 0.03). Conclusions The new finding from our preliminary study of small sample size was that HLA genetic polymorphisms could be associated with COVID-19 mortality; however, studies with a larger sample size before definitive conclusions can be drawn.
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22
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Caroca E, Serrano A, Borja R, Jiménez A, Carvajal A, Braga AFM, Rodriguez-Gutierrez G, Fermoso FG. Influence of phenols and furans released during thermal pretreatment of olive mill solid waste on its anaerobic digestion. Waste Manag 2021; 120:202-208. [PMID: 33310132 DOI: 10.1016/j.wasman.2020.11.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/13/2020] [Accepted: 11/04/2020] [Indexed: 06/12/2023]
Abstract
The application of thermal pretreatments to facilitate its anaerobic digestion has associated phenols and furans production, which are commonly identified as inhibitory compounds. Phenols and furans extraction can be done from a liquid phase produced after the thermal pretreatment. In the present study this dephenolized liquid phase (DLP) showed an increase of 42% in methane yield compared to the raw liquid phase (LP) demonstrating the inhibitor character of such compounds. The main extracted phenols and furans were: 3,4-Dihydroxyphenylglycol (DHPG), Hydroxytyrosol (HT), Tyrosol (Ty), Vanillic acid (AcV), Hydroxymethylfurfural (HMF), Vanillin (V) and Furfural (F).This study also aimed to evaluate the individual effect on methane production of these specific phenols and furans the within the mixture of several ones from LP. The evaluation of the individual compounds over the methanogenesis of a dephenolized liquid phase showed that only V was inhibitory on both methane yield and methane production rate. HMF had a significantly negative effect on methane yield, but improved the methane production rate instead. Ty, F, DHPG and HT favoured the methane yield and production rate. Additionally, it was observed that negative effect of some individual phenols and furans was counteracted by the positive effect of other compounds.
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Affiliation(s)
- E Caroca
- Universidad Técnica Federico Santa María, Avenida Vicuña Mackenna 3939 San Joaquín, Santiago, Chile; Universidad Pablo de Olavide, Carretera de Utrera, 1, 41013 Seville, Spain
| | - A Serrano
- Instituto de la Grasa (CSIC), Seville, Spain; School of Civil Engineering, The University of Queensland, Campus St Lucia, Ed. 49, CP 4067, Brisbane, Australia
| | - R Borja
- Instituto de la Grasa (CSIC), Seville, Spain
| | - A Jiménez
- Universidad Pablo de Olavide, Carretera de Utrera, 1, 41013 Seville, Spain
| | - A Carvajal
- Universidad Técnica Federico Santa María, Avenida Vicuña Mackenna 3939 San Joaquín, Santiago, Chile.
| | - A F M Braga
- Center for Research, Development and Innovation in Environmental Engineering, São Carlos School of Engineering (EESC), University of São Paulo (USP), Engenharia Ambiental - Bloco 4-F, Av. João Dagnone, 1100 - Santa Angelina, 13.563-120, São Carlos, SP, Brazil
| | | | - F G Fermoso
- Instituto de la Grasa (CSIC), Seville, Spain
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23
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Lorente L, Gómez-Bernal F, Martín MM, Navarro-Gonzálvez JA, Argueso M, Perez A, Ramos-Gómez L, Solé-Violán J, Marcos Y Ramos JA, Ojeda N, Jiménez A. High serum nitrates levels in non-survivor COVID-19 patients. Med Intensiva 2020; 46:S0210-5691(20)30336-3. [PMID: 33293102 PMCID: PMC7654288 DOI: 10.1016/j.medin.2020.10.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/13/2020] [Accepted: 10/25/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Higher blood nitrate and nitrite levels have been found in coronavirus disease 2019 (COVID-19) patients than in healthy subjects. The present study explores the potential association between serum nitrate levels and mortality in COVID-19 patients. DESIGN A prospective observation study was carried out. SETTING Eight Intensive Care Units (ICUs) from 6 hospitals in the Canary Islands (Spain). PATIENTS COVID-19 patients admitted to the ICU. INTERVENTIONS Determination of serum nitrate levels at ICU admission. MAIN VARIABLE OF INTEREST Mortality at 30 days. RESULTS Non-surviving (n=11) compared to surviving patients (n=42) showed higher APACHE-II (p<0.001) and SOFA scores (p=0.004), and higher serum nitrate levels (p=0.001). Logistic regression analyses showed serum nitrate levels to be associated to 30-day mortality after controlling for SOFA (OR=1.021; 95%CI=1.006-1.036; p=0.01) or APACHE-II (OR=1.023; 95%CI=1.006-1.041; p=0.01). There were no differences in the area under the curve (AUC) for mortality prediction by serum nitrate levels (AUC=83%; 95%CI=73-92%; p<0.001), APACHE II (AUC=85%; 95%CI=75-96%; p<0.001) and SOFA (AUC=78%; 95%CI=63-92%; p=0.005) based on the DeLong method. The Kaplan-Meier analysis found patients with serum nitrates levels>68.4μmol/l to have a higher mortality rate (hazard ratio=138.8; 95%CI=22.3-863.9; p<0.001). CONCLUSIONS The main novel finding was the association between serum nitrate levels and mortality in COVID-19 patients controlling for the SOFA or APACHE-II scores, though larger studies are needed to confirm this observation.
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Affiliation(s)
- L Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain.
| | - F Gómez-Bernal
- Laboratory Department, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
| | - M M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - J A Navarro-Gonzálvez
- Laboratory Department, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
| | - M Argueso
- Intensive Care Unit, Complejo Hospitalario Universitario Insular, Las Palmas de Gran Canaria, Spain
| | - A Perez
- Internal Intensive Care Unit, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
| | - L Ramos-Gómez
- Intensive Care Unit, Hospital General La Palma, Breña Alta, Santa Cruz de Tenerife, Spain
| | - J Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - J A Marcos Y Ramos
- Intensive Care Unit, Hospital Doctor José Molina Orosa, Arrecife, Las Palmas, Spain
| | - N Ojeda
- Department of Anesthesiology, Hospital Universitario Dr. Negrín, Las Palmas de Gran Canaria, Spain
| | - A Jiménez
- Research Unit, Hospital Universitario de Canarias, San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain
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Lorente L, Martín MM, Ortiz-López R, González-Rivero AF, Pérez-Cejas A, Martín M, Gonzalez V, Pérez A, Rodin M, Jiménez A. Blood caspase-8 concentrations and mortality among septic patients. Med Intensiva 2020; 46:S0210-5691(20)30246-1. [PMID: 32843190 DOI: 10.1016/j.medin.2020.06.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 06/23/2020] [Accepted: 06/27/2020] [Indexed: 12/29/2022]
Abstract
OBJECTIVE No data are available on blood caspase-8 concentrations (the initiator caspase in the extrinsic apoptosis pathway) in septic patients. The present study thus describes the blood caspase-8 concentrations in survivors and non-survivors, and examines the possible association between blood caspase-8 concentrations and mortality in septic patients. DESIGN A prospective observational study was carried out. SETTING Three Spanish Intensive Care Units. PATIENTS Septic patients. INTERVENTIONS Serum caspase-8 concentrations were determined at the diagnosis of sepsis. MAIN VARIABLE OF INTEREST Mortality after 30 days. RESULTS Patients not surviving at day 30 (n=81) compared to surviving patients (n=140) showed higher serum caspase-8 levels (p<0.001). Multiple logistic regression analysis found an association between serum caspase-8 levels>43.5ng/ml and mortality (OR=3.306; 95%CI=1.619-6.753; p=0.001). The area under the curve (AUC) for mortality predicted by serum caspase-8 levels was 67% (95% CI=60-73%; p<0.001). CONCLUSIONS The novel findings of our study were that blood caspase-8 concentrations are higher in non-survivors than in survivors, and that there is an association between blood caspase-8 concentrations and mortality in septic patients.
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Affiliation(s)
- L Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Tenerife, Spain.
| | - M M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora Candelaria, Crta Rosario s/n., Santa Cruz Tenerife 38010, Spain
| | - R Ortiz-López
- Intensive Care Unit, Hospital General de La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma 38713, Spain
| | - A F González-Rivero
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Santa Cruz de Tenerife, Spain
| | - A Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Tenerife, Spain
| | - M Martín
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra s/n., La Laguna, Santa Cruz de Tenerife 38320, Spain
| | - V Gonzalez
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra s/n., La Laguna, Santa Cruz de Tenerife 38320, Spain
| | - A Pérez
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra s/n., La Laguna, Santa Cruz de Tenerife 38320, Spain
| | - M Rodin
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra s/n., La Laguna, Santa Cruz de Tenerife 38320, Spain
| | - A Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n., La Laguna 38320, Tenerife, Spain
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Gila A, Bejaoui M, Beltrán G, Jiménez A. Rapid method based on computer vision to determine the moisture and insoluble impurities content in virgin olive oils. Food Control 2020. [DOI: 10.1016/j.foodcont.2020.107210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mellinas A, Jiménez A, Garrigós M. Optimization of microwave-assisted extraction of cocoa bean shell waste and evaluation of its antioxidant, physicochemical and functional properties. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109361] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Zafon C, Jiménez A, Fajardo C, Ballesteros M, Gimeno J, Wägner A. En reconocimiento a la labor de los revisores. ¿Cómo podemos mejorar? ENDOCRINOL DIAB NUTR 2020; 67:153-154. [DOI: 10.1016/j.endinu.2020.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 10/24/2022]
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Casanovas MM, Cabrera M, Camacho V, De la Fuente C, García J, Jiménez A. Revista española de medicina nuclear e imagen molecular in 2020. Rev Esp Med Nucl Imagen Mol 2020. [DOI: 10.1016/j.remnie.2020.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mitjavila Casanovas M, Cabrera M, Camacho V, De la Fuente C, García J, Jiménez A. La Revista Española de Medicina Nuclear e Imagen Molecular en 2020. Rev Esp Med Nucl Imagen Mol 2020; 39:67. [DOI: 10.1016/j.remn.2020.02.001] [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: 11/30/2022]
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Granada AE, Jiménez A, Stewart-Ornstein J, Blüthgen N, Reber S, Jambhekar A, Lahav G. The effects of proliferation status and cell cycle phase on the responses of single cells to chemotherapy. Mol Biol Cell 2020; 31:845-857. [PMID: 32049575 PMCID: PMC7185964 DOI: 10.1091/mbc.e19-09-0515] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [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] [Indexed: 01/16/2023] Open
Abstract
DNA-damaging chemotherapeutics are widely used in cancer treatments, but for solid tumors they often leave a residual tumor-cell population. Here we investigated how cellular states might affect the response of individual cells in a clonal population to cisplatin, a DNA-damaging chemotherapeutic agent. Using a live-cell reporter of cell cycle phase and long-term imaging, we monitored single-cell proliferation before, at the time of, and after treatment. We found that in response to cisplatin, cells either arrested or died, and the ratio of these outcomes depended on the dose. While we found that the cell cycle phase at the time of cisplatin addition was not predictive of outcome, the proliferative history of the cell was: highly proliferative cells were more likely to arrest than to die, whereas slowly proliferating cells showed a higher probability of death. Information theory analysis revealed that the dose of cisplatin had the greatest influence on the cells’ decisions to arrest or die, and that the proliferation status interacted with the cisplatin dose to further guide this decision. These results show an unexpected effect of proliferation status in regulating responses to cisplatin and suggest that slowly proliferating cells within tumors may be acutely vulnerable to chemotherapy.
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Affiliation(s)
- Adrián E Granada
- IRI Life Sciences, Humboldt University Berlin, 10115 Berlin, Germany.,Department of Systems Biology, Harvard Medical School, Boston, MA 02115
| | - Alba Jiménez
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115
| | - Jacob Stewart-Ornstein
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115.,Department of Computational and Systems Biology, University of Pittsburgh Medical School, Pittsburgh, PA 15260
| | - Nils Blüthgen
- IRI Life Sciences, Humboldt University Berlin, 10115 Berlin, Germany.,Institute of Pathology, Charité Universitätsmedizin Berlin, 10117 Berlin, Germany.,German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), 69120 -Heidelberg, Germany.,Berlin Institute of Health (BIH), 10178 Berlin, Germany
| | - Simone Reber
- IRI Life Sciences, Humboldt University Berlin, 10115 Berlin, Germany.,University of Applied Sciences Berlin, 13353 Berlin, Germany
| | - Ashwini Jambhekar
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115
| | - Galit Lahav
- Department of Systems Biology, Harvard Medical School, Boston, MA 02115
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Heltberg ML, Chen SH, Jiménez A, Jambhekar A, Jensen MH, Lahav G. Inferring Leading Interactions in the p53/Mdm2/Mdmx Circuit through Live-Cell Imaging and Modeling. Cell Syst 2019; 9:548-558.e5. [PMID: 31812692 PMCID: PMC7263464 DOI: 10.1016/j.cels.2019.10.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 08/23/2019] [Accepted: 10/29/2019] [Indexed: 01/31/2023]
Abstract
The tumor-suppressive transcription factor p53 is a master regulator of stress responses. In non-stressed conditions, p53 is maintained at low levels by the ubiquitin ligase Mdm2 and its binding partner Mdmx. Mdmx depletion leads to a biphasic p53 response, with an initial post-mitotic pulse followed by oscillations. The mechanism underlying this dynamical behavior is unknown. Two different roles for Mdmx have been proposed: enhancing p53 ubiquitination by Mdm2 and inhibiting p53 activity. Here, we developed a mathematical model of the p53/Mdm2/Mdmx network to investigate which Mdmx functions quantitatively affect specific features of p53 dynamics under various conditions. We found that enhancement of Mdm2 activity was the most critical role of Mdmx under unstressed conditions. The model also accurately predicted p53 dynamics in Mdmx-depleted cells following DNA damage. This work outlines a strategy for rapidly testing possible network interactions to reveal those most impactful in regulating the dynamics of key proteins.
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Affiliation(s)
- Mathias L Heltberg
- Niels Bohr Institute, University of Copenhagen 2100, Copenhagen, Denmark; Department of Systems Biology, Harvard Medical School, Boston, MA, USA
| | - Sheng-Hong Chen
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA; Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Alba Jiménez
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA
| | - Ashwini Jambhekar
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA
| | - Mogens H Jensen
- Niels Bohr Institute, University of Copenhagen 2100, Copenhagen, Denmark.
| | - Galit Lahav
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA.
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Camejo D, Guzmán-Cedeño A, Vera-Macias L, Jiménez A. Oxidative post-translational modifications controlling plant-pathogen interaction. Plant Physiol Biochem 2019; 144:110-117. [PMID: 31563091 DOI: 10.1016/j.plaphy.2019.09.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 09/02/2019] [Accepted: 09/15/2019] [Indexed: 05/27/2023]
Abstract
Pathogen recognition is linked to the perception of microbe/pathogen-associated molecular patterns triggering a specific and transient accumulation of reactive oxygen species (ROS) at the pathogen attack site. The apoplastic oxidative "burst" generated at the pathogen attack site depends on the ROS-generator systems including enzymes such as plasma membrane NADP (H) oxidases, cell wall peroxidases and lipoxygenase. ROS are cytotoxic molecules that inhibit invading pathogens or signalling molecules that control the local and systemic induction of defence genes. Post-translational modifications induced by ROS are considered as a potential signalling mechanism that can modify protein structure and/or function, localisation and cellular stability. Thus, this review focuses on how ROS are essential molecules regulating the function of proteins involved in the plant response to a pathogen attack through post-translational modifications.
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Affiliation(s)
- D Camejo
- Department of Stress Biology and Plant Pathology, Centro de Edafología y Biología Aplicada del Segura, CEBAS-CSIC, Spain; Department of Research and Agronomy Faculty, Escuela Superior Politécnica Agropecuaria de Manabí, ESPAM-MES, Ecuador.
| | - A Guzmán-Cedeño
- Department of Research and Agronomy Faculty, Escuela Superior Politécnica Agropecuaria de Manabí, ESPAM-MES, Ecuador; University, School of Agriculture and Livestock, ULEAM-MES, Ecuador.
| | - L Vera-Macias
- Department of Research and Agronomy Faculty, Escuela Superior Politécnica Agropecuaria de Manabí, ESPAM-MES, Ecuador.
| | - A Jiménez
- Department of Stress Biology and Plant Pathology, Centro de Edafología y Biología Aplicada del Segura, CEBAS-CSIC, Spain.
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Lorente L, Martín MM, Pérez-Cejas A, González-Rivero AF, Argueso M, Ramos L, Solé-Violán J, Cáceres JJ, Jiménez A, García-Marín V. Serum caspase-3 levels during the first week of traumatic brain injury. Med Intensiva 2019; 45:131-137. [PMID: 31677852 DOI: 10.1016/j.medin.2019.09.005] [Citation(s) in RCA: 5] [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: 07/02/2019] [Revised: 08/10/2019] [Accepted: 09/01/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Confluence between the intrinsic and extrinsic apoptosis pathways is reached at the point of caspase-3 activation, which induces death cell. Higher serum caspase-3 levels have been recorded on day 1 of traumatic brain injury (TBI) in 30-day non-survivors compared to survivors. The objectives of this study therefore were to determine whether serum caspase-3 levels are persistently higher in non-survivors than in survivors, and whether these levels may be used to predict 30-day mortality. DESIGN A prospective observational study was carried out. SETTING Six Spanish Intensive Care Units. PATIENTS Patients with severe isolated TBI (defined as Glasgow Coma Scale <9 points and non-cranial Injury Severity Score <10 points). INTERVENTIONS Serum caspase-3 concentrations were measured on days 1, 4 and 8 of TBI. MAIN VARIABLES OF INTEREST Thirty-day mortality was considered as the study endpoint. RESULTS In comparison with non-survivors (n=34), 30-day survivors (n=90) showed lower serum caspase-3 levels on days 1 (p=0.001), 4 (p<0.001) and 8 (p<0.001) of TBI. Analysis of the ROC curves showed serum caspase-3 concentrations on days 1, 4 and 8 of TBI to have an AUC (95% CI) in predicting 30-day mortality of 0.70 (0.61-0.78; p=0.001), 0.83 (0.74-0.89; p<0.001) and 0.87 (0.79-0.93; p<0.001), respectively. CONCLUSIONS The novel findings of our study were that serum caspase-3 levels during the first week of TBI were lower in survivors and could predict 30-day mortality.
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Affiliation(s)
- L Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain.
| | - M M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - A Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain
| | - A F González-Rivero
- Laboratory Department, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain
| | - M Argueso
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | - L Ramos
- Intensive Care Unit, Hospital General de La Palma, Breña Alta, La Palma, Spain
| | - J Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, CIBERES, Las Palmas de Gran Canaria, Spain
| | - J J Cáceres
- Intensive Care Unit, Hospital Insular, Las Palmas de Gran Canaria, Spain
| | - A Jiménez
- Research Unit, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain
| | - V García-Marín
- Department of Neurosurgery, Hospital Universitario de Canarias, La Laguna, Santa Cruz de Tenerife, Spain
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de Mendoza C, Roc L, Fernández‐Alonso M, Soriano V, Rodríguez C, Vera M, del Romero J, Marcaida G, Ocete M, Caballero E, Molina I, Aguilera A, Rodríguez‐Calviño J, Navarro D, Rivero C, Vilariño M, Benito R, Algarate S, Gil J, Ortiz de Lejarazu R, Rojo S, Eirós J, San Miguel A, Manzardo C, Miró J, García J, Paz I, Poveda E, Calderón E, Escudero D, Trigo M, Diz J, García‐Campello M, Rodríguez‐Iglesias M, Hernández‐Betancor A, Martín A, Ramos J, Gimeno A, Gutiérrez F, Rodríguez J, Sánchez V, Gómez‐Hernando C, Cilla G, Pérez‐Trallero E, López‐Aldeguer J, Fernández‐Pereira L, Niubó J, Hernández M, López‐Lirola A, Gómez‐Sirvent J, Force L, Cifuentes C, Pérez S, Morano L, Raya C, González‐Praetorius A, Pérez J, Peñaranda M, Hernáez‐Crespo S, Montejo J, Roc L, Martínez‐Sapiña A, Viciana I, Cabezas T, Lozano A, Fernández J, García‐Bermejo I, Gaspar G, García R, Górgolas M, Vegas C, Blas J, Miralles P, Valeiro M, Aldamiz T, Margall N, Guardia C, do Pico E, Polo I, Aguinaga A, Ezpeleta C, Sauleda S, Pirón M, González R, Barea L, Jiménez A, Blanco L, Suárez A, Rodríguez‐Avial I, Pérez‐Rivilla A, Parra P, Fernández M, Fernández‐Alonso M, Treviño A, Requena S, Benítez‐Gutiérrez L, Cuervas‐Mons V, de Mendoza C, Barreiro P, Soriano V, Corral O, Gómez‐Gallego F. HTLV testing of solid organ transplant donors. Clin Transplant 2019; 33:e13670. [DOI: 10.1111/ctr.13670] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/06/2019] [Accepted: 07/08/2019] [Indexed: 11/27/2022]
Affiliation(s)
- Carmen de Mendoza
- Internal Medicine Laboratory Puerta de Hierro Research Institute & University Hospital Madrid Spain
- Microbiology section, Pharmaceutical and Health Science Department Pablo-CEU University Madrid Spain
| | - Lourdes Roc
- Microbiology Department Hospital Miguel Servet Zaragoza Spain
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Lorente L, Martín MM, González-Rivero AF, Pérez-Cejas A, Abreu-González P, Ramos L, Argueso M, Cáceres JJ, Solé-Violán J, Alvarez-Castillo A, Jiménez A, García-Marín V. DNA and RNA oxidative damage are associated to mortality in patients with cerebral infarction. Med Intensiva 2019; 45:35-41. [PMID: 31492477 DOI: 10.1016/j.medin.2019.07.008] [Citation(s) in RCA: 5] [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: 04/30/2019] [Revised: 07/07/2019] [Accepted: 07/14/2019] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Secondary injury due to oxidation may occur during ischemic stroke, possibly leading to oxidative damage to deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). Higher blood concentrations of 8-hydroxy-2'-deoxyguanosine (8-OHdG) (through the oxidation of guanosine from DNA) have been found in ischemic stroke patients than in healthy subjects, and in patients with versus without post-ischemic stroke depression. The present study was carried out to explore the possible association between serum DNA and RNA oxidative damage and mortality in patients with cerebral infarction. METHODS A prospective, multicenter observational study was carried out in the Intensive Care Units of 6 Spanish hospitals. We included patients with severe malignant middle cerebral artery infarction (MMCAI) defined as ischemic changes evidenced by computed tomography in more than 50% of the middle cerebral artery territory and a Glasgow Coma Score (GCS)<9. Serum concentrations of the three oxidized guanine species (OGS) (8-hydroxyguanine from DNA or RNA, 8-hydroxyguanosine from RNA, and 8-OHdG from DNA) on the day of MMCAI diagnosis were determined. The study endpoint was 30-day mortality. RESULTS We found higher serum OGS levels (p<0.001) in non-surviving (n=34) than in surviving patients (n=34). Logistic regression analyses showed serum OGS levels to be associated to 30-day mortality controlling for lactic acid, GCS and platelet count (OR=1.568; 95%CI=1.131-2.174; p=0.01). CONCLUSIONS The novel observation in this study is the association between global serum OGS concentration and mortality in ischemic stroke patients.
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Affiliation(s)
- L Lorente
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain.
| | - M M Martín
- Intensive Care Unit, Hospital Universitario Nuestra Señora de Candelaria, Crta del Rosario s/n, Santa Cruz de Tenerife 38010, Spain
| | - A F González-Rivero
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain
| | - A Pérez-Cejas
- Laboratory Department, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Tenerife, Spain
| | - P Abreu-González
- Department of Physiology, Faculty of Medicine, University of the La Laguna, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain
| | - L Ramos
- Intensive Care Unit, Hospital General La Palma, Buenavista de Arriba s/n, Breña Alta, La Palma 38713, Spain
| | - M Argueso
- Intensive Care Unit, Hospital Clínico Universitario de Valencia, Avda. Blasco Ibáñez n°17-19, Valencia 46004, Spain
| | - J J Cáceres
- Intensive Care Unit, Hospital Insular, Plaza Dr. Pasteur s/n, Las Palmas de Gran Canaria 35016, Spain
| | - J Solé-Violán
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Barranco de la Ballena s/n, Las Palmas de Gran Canaria 35010, Spain
| | - A Alvarez-Castillo
- Intensive Care Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain
| | - A Jiménez
- Research Unit, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain
| | - V García-Marín
- Department of Neurosurgery, Hospital Universitario de Canarias, Ofra, s/n, La Laguna, 38320 Santa Cruz de Tenerife, Spain
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de Dios C, Jiménez A, García F, García-Martín A, Cebollada A, Armelles G. Mueller matrix study of the dichroism in nanorods dimers: rod separation effects. Opt Express 2019; 27:21142-21152. [PMID: 31510196 DOI: 10.1364/oe.27.021142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/21/2019] [Indexed: 06/10/2023]
Abstract
We have studied the optical response of chiral metastructures composed of a disordered array of couples of plasmonic Au nanorods helically piled along the vertical direction. The fabrication is based on the use of multiaxial and multimaterial evaporation of the different metastructure building blocks through nanohole masks. From the analysis of the Mueller Matrix elements of the system, obtained both experimentally and from dedicated numerical simulations in forward and backward illumination conditions, we have been able to determine the linear and circular dichroic response of the system, as well as to sort out the optical anisotropy and intrinsic circular dichroism contributions to the circular differential extinction. We have also analyzed the dependence of the optical properties as a function of the angle between the rods and of the thickness of the dielectric separator. The study of quasi-planar as well as three-dimensional structures allows unraveling the role played by interactions between the constituting building blocks and, in particular, the distance between rods. We have experimentally and theoretically observed a decrease of the circular dichroic contribution and a change of the optical anisotropic contribution when the structures evolve from non-planar to planar.
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Gamonales J, León K, Jiménez A, Muñoz-Jiménez J. INDICADORES DE RENDIMIENTO DEPORTIVO EN EL FÚTBOL-7 PARA PERSONAS CON PARÁLISIS CEREBRAL. RIMCAFD 2019. [DOI: 10.15366/rimcafd2019.74.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ortega-Pinazo J, Díaz T, Martínez B, Jiménez A, Pinto-Medel MJ, Ferro P. Quality assessment on the long-term cryopreservation and nucleic acids extraction processes implemented in the andalusian public biobank. Cell Tissue Bank 2019; 20:255-265. [PMID: 30903409 DOI: 10.1007/s10561-019-09764-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 03/14/2019] [Indexed: 12/11/2022]
Abstract
Human samples are commonly collected and long-term stored in biobanks for current and future analyses. Even though techniques for freezing human blood are well established, the storage time can compromise the cell viability as well as the yield and quality of nucleic acids (RNA and DNA) extracted from them. In this study, a protocol to obtain peripheral blood mononuclear cells (PBMCs) from 70 subjects, which were stored at - 196 °C from EDTA tubes for a long-term, was assessed. In parallel; a protocol to obtain DNA from the same subjects, which were stored at - 80 °C from citrate tubes, was also studied. Samples stored from 2008 to 2012 were studied and the results obtained showed that there were no statistically significant differences in the RNA or DNA extracted in terms of purity, integrity and functionality The freezing protocol used by the Málaga Biobank shows that viable PBMCs and DNA could be kept for a period of, at least, 10 years, with a high quality and performance. Furthermore, RNA extracted from these PBMCs presents also a good quality and performance. Therefore, the samples frozen according to the conditions of the protocols assessed in this study could be optimal for biomedical research.
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Affiliation(s)
- J Ortega-Pinazo
- Neuroscience UGC, Instituto de Investigación Biomédica de Málaga (IBIMA), Sanitary Distric of Málaga, University of Málaga, Málaga, Spain
| | - T Díaz
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga (IBIMA), Sanitary Distric of Málaga, University of Málaga, Málaga, Spain
| | - B Martínez
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga (IBIMA), Sanitary Distric of Málaga, University of Málaga, Málaga, Spain
| | - A Jiménez
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga (IBIMA), Sanitary Distric of Málaga, University of Málaga, Málaga, Spain
| | - M J Pinto-Medel
- Neuroscience UGC, Instituto de Investigación Biomédica de Málaga (IBIMA), Sanitary Distric of Málaga, University of Málaga, Málaga, Spain
| | - P Ferro
- Andalusian Public Health System Biobank, Instituto de Investigación Biomédica de Málaga (IBIMA), Sanitary Distric of Málaga, University of Málaga, Málaga, Spain.
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Blanes M, Lorenzo JI, Ribas P, Jiménez A, González JD, Cejalvo MJ, Solano C, Alegre A, de la Rubia J. Intravenous busulfan plus melphalan versus melphalan alone as conditioning regimen for patients with multiple myeloma. Ann Hematol 2019; 98:2013-2015. [PMID: 30879095 DOI: 10.1007/s00277-019-03663-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 03/06/2019] [Indexed: 11/25/2022]
Affiliation(s)
- M Blanes
- Hematology Service, University Hospital General de Elda, Alicante, Spain
| | - J I Lorenzo
- Hematology Service, University Hospital La Fe, Valencia, Spain
| | - P Ribas
- Hematology Service, University Hospital Doctor Peset, Valencia, Spain
| | - A Jiménez
- Hematology Service, University Hospital 12 de Octubre, Madrid, Spain
| | - J D González
- Hematology Service, University Hospital Insular de Canarias, Las Palmas, Spain
| | - M J Cejalvo
- Hematology Service, University Hospital Doctor Peset, Valencia, Spain
| | - C Solano
- Hematology Service, University Hospital Clínico, Valencia, Spain
| | - A Alegre
- Hematology Service, University Hospital La Princesa, Madrid, Spain
| | - Javier de la Rubia
- Hematology Service, University Hospital Doctor Peset, Valencia, Spain.
- Internal Medicine, School of Medicine and Dentistry, Catholic University of Valencia, Valencia, Spain.
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40
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Wyman V, Serrano A, Borja R, Jiménez A, Carvajal A, Lenz M, Bartacek J, Fermoso FG. Effects of barium on the pathways of anaerobic digestion. J Environ Manage 2019; 232:397-403. [PMID: 30500703 DOI: 10.1016/j.jenvman.2018.11.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 11/13/2018] [Accepted: 11/16/2018] [Indexed: 06/09/2023]
Abstract
The sufficient presence of trace elements (TE) is essential for anaerobic digestion. Barium (Ba) is considered a non-essential trace element that can be collaterally added to digesters as part of low-cost trace element sources or because of its presence in some feedstocks, such as crude glycerol. In the present study, the impact of Ba supplementation (2-2000 mg/L) on each stage of the anaerobic digestion (AD) process was evaluated using pure substrates (i.e., cellulose, glucose, a mixture of volatile fatty acids, sodium acetate and hydrogen) as well as a complex substrate (i.e., dried green fodder). Hydrolytic activity was affected at dosages higher than 200 mg Ba/L, whereas cellulose degradation was completely inhibited at 2000 mg Ba/L. The negative effects of the addition of Ba to methane production were observed only in the hydrolytic activity, and no effects were detected at any barium dosage in the subsequent anaerobic steps. Because Ba does not have a reported role as a cofactor of enzymes, this response could have been due to a direct inhibitory effect, a variation in the bioavailability of other trace elements, or even the availability of CO2/SO4 through precipitation as Ba-carbonates and sulphates. The results showed that the addition of Ba modified the chemical equilibrium of the studied system by varying the soluble concentration of some TEs and therefore their bioavailability. The highest variation was detected in the soluble concentration of zinc, which increased as the amount of Ba increased. Although little research has shown that Ba has some utility in anaerobic processes, its addition must be carefully monitored to avoid an undesirable modification of the chemical equilibrium in the system.
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Affiliation(s)
- V Wyman
- Universidad Técnica Federico Santa María, Avenida Vicuña Mackenna 3939, San Joaquín, Santiago, Chile; Universidad Pablo de Olavide, Carretera de Utrera, 1, 41013, Seville, Spain
| | - A Serrano
- Instituto de la Grasa (CSIC), Seville, Spain; School of Civil Engineering, The University of Queensland, Ed. 49, Campus St Lucia, 4067, Brisbane, Australia.
| | - R Borja
- Instituto de la Grasa (CSIC), Seville, Spain
| | - A Jiménez
- Universidad Pablo de Olavide, Carretera de Utrera, 1, 41013, Seville, Spain
| | - A Carvajal
- Universidad Técnica Federico Santa María, Avenida Vicuña Mackenna 3939, San Joaquín, Santiago, Chile
| | - M Lenz
- Institute for Ecopreneurship, School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Switzerland; Sub-Department of Environmental Technology, Wageningen University, 6700 AA, Wageningen, the Netherlands
| | - J Bartacek
- University of Chemistry and Technology Prague, Czech Republic
| | - F G Fermoso
- Instituto de la Grasa (CSIC), Seville, Spain
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41
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Sorzano COS, Jiménez A, Mota J, Vilas JL, Maluenda D, Martínez M, Ramírez-Aportela E, Majtner T, Segura J, Sánchez-García R, Rancel Y, del Caño L, Conesa P, Melero R, Jonic S, Vargas J, Cazals F, Freyberg Z, Krieger J, Bahar I, Marabini R, Carazo JM. Survey of the analysis of continuous conformational variability of biological macromolecules by electron microscopy. Acta Crystallogr F Struct Biol Commun 2019; 75:19-32. [PMID: 30605122 PMCID: PMC6317454 DOI: 10.1107/s2053230x18015108] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [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: 05/30/2018] [Accepted: 10/26/2018] [Indexed: 11/10/2022] Open
Abstract
Single-particle analysis by electron microscopy is a well established technique for analyzing the three-dimensional structures of biological macromolecules. Besides its ability to produce high-resolution structures, it also provides insights into the dynamic behavior of the structures by elucidating their conformational variability. Here, the different image-processing methods currently available to study continuous conformational changes are reviewed.
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Affiliation(s)
| | - A. Jiménez
- National Center of Biotechnology (CSIC), Spain
| | - J. Mota
- National Center of Biotechnology (CSIC), Spain
| | - J. L. Vilas
- National Center of Biotechnology (CSIC), Spain
| | - D. Maluenda
- National Center of Biotechnology (CSIC), Spain
| | - M. Martínez
- National Center of Biotechnology (CSIC), Spain
| | | | - T. Majtner
- National Center of Biotechnology (CSIC), Spain
| | - J. Segura
- National Center of Biotechnology (CSIC), Spain
| | | | - Y. Rancel
- National Center of Biotechnology (CSIC), Spain
| | - L. del Caño
- National Center of Biotechnology (CSIC), Spain
| | - P. Conesa
- National Center of Biotechnology (CSIC), Spain
| | - R. Melero
- National Center of Biotechnology (CSIC), Spain
| | - S. Jonic
- Sorbonne Université, UMR CNRS 7590, Muséum National d’Histoire Naturelle, IRD, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, IMPMC, Paris, France
| | | | - F. Cazals
- Inria Sophia Antipolis – Méditerranée, France
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Gómez-Blanco J, de la Rosa-Trevín JM, Marabini R, Del Cano L, Jiménez A, Martínez M, Melero R, Majtner T, Maluenda D, Mota J, Rancel Y, Ramírez-Aportela E, Vilas JL, Carroni M, Fleischmann S, Lindahl E, Ashton AW, Basham M, Clare DK, Savage K, Siebert CA, Sharov GG, Sorzano COS, Conesa P, Carazo JM. Using Scipion for stream image processing at Cryo-EM facilities. J Struct Biol 2018; 204:457-463. [PMID: 30296492 PMCID: PMC6303188 DOI: 10.1016/j.jsb.2018.10.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 10/01/2018] [Accepted: 10/03/2018] [Indexed: 12/11/2022]
Abstract
Three dimensional electron microscopy is becoming a very data-intensive field in which vast amounts of experimental images are acquired at high speed. To manage such large-scale projects, we had previously developed a modular workflow system called Scipion (de la Rosa-Trevín et al., 2016). We present here a major extension of Scipion that allows processing of EM images while the data is being acquired. This approach helps to detect problems at early stages, saves computing time and provides users with a detailed evaluation of the data quality before the acquisition is finished. At present, Scipion has been deployed and is in production mode in seven Cryo-EM facilities throughout the world.
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Affiliation(s)
- J Gómez-Blanco
- Department of Anatomy and Cell Biology, McGill University, Montreal, Canada
| | - J M de la Rosa-Trevín
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
| | - R Marabini
- Escuela Politécnica Superior, Universidad Autónoma de Madrid, 28049 Cantoblanco, Madrid, Spain.
| | - L Del Cano
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - A Jiménez
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - M Martínez
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - R Melero
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - T Majtner
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - D Maluenda
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - J Mota
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - Y Rancel
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - E Ramírez-Aportela
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - J L Vilas
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - M Carroni
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
| | - S Fleischmann
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, Stockholm, Sweden
| | - E Lindahl
- Department of Biochemistry and Biophysics, Science for Life Laboratory, Stockholm University, Stockholm, Sweden; Swedish e-Science Research Center, KTH Royal Institute of Technology, Stockholm, Sweden
| | - A W Ashton
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - M Basham
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - D K Clare
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - K Savage
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - C A Siebert
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, United Kingdom
| | - G G Sharov
- Medical Research Council Laboratory of Molecular Biology, Francis Crick Avenue, Cambridge CB2 OQH, United Kingdom
| | - C O S Sorzano
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - P Conesa
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
| | - J M Carazo
- Biocomputing Unit, National Center for Biotechnology (CSIC), C/ Darwin, 3, Campus Universidad Autónoma, 28049 Cantoblanco, Madrid, Spain
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Sorzano C, Vargas J, de la Rosa-Trevín J, Jiménez A, Maluenda D, Melero R, Martínez M, Ramírez-Aportela E, Conesa P, Vilas J, Marabini R, Carazo J. A new algorithm for high-resolution reconstruction of single particles by electron microscopy. J Struct Biol 2018; 204:329-337. [DOI: 10.1016/j.jsb.2018.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 07/19/2018] [Accepted: 08/04/2018] [Indexed: 01/01/2023]
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Schaerli Y, Jiménez A, Duarte JM, Mihajlovic L, Renggli J, Isalan M, Sharpe J, Wagner A. Synthetic circuits reveal how mechanisms of gene regulatory networks constrain evolution. Mol Syst Biol 2018; 14:e8102. [PMID: 30201776 PMCID: PMC6129954 DOI: 10.15252/msb.20178102] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [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: 11/13/2017] [Revised: 08/15/2018] [Accepted: 08/15/2018] [Indexed: 12/22/2022] Open
Abstract
Phenotypic variation is the raw material of adaptive Darwinian evolution. The phenotypic variation found in organismal development is biased towards certain phenotypes, but the molecular mechanisms behind such biases are still poorly understood. Gene regulatory networks have been proposed as one cause of constrained phenotypic variation. However, most pertinent evidence is theoretical rather than experimental. Here, we study evolutionary biases in two synthetic gene regulatory circuits expressed in Escherichia coli that produce a gene expression stripe-a pivotal pattern in embryonic development. The two parental circuits produce the same phenotype, but create it through different regulatory mechanisms. We show that mutations cause distinct novel phenotypes in the two networks and use a combination of experimental measurements, mathematical modelling and DNA sequencing to understand why mutations bring forth only some but not other novel gene expression phenotypes. Our results reveal that the regulatory mechanisms of networks restrict the possible phenotypic variation upon mutation. Consequently, seemingly equivalent networks can indeed be distinct in how they constrain the outcome of further evolution.
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Affiliation(s)
- Yolanda Schaerli
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zürich, Switzerland
| | - Alba Jiménez
- Systems Biology Program, Centre for Genomic Regulation (CRG), Universitat Pompeu Fabra, Barcelona, Spain
| | - José M Duarte
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zürich, Switzerland
| | - Ljiljana Mihajlovic
- Department of Fundamental Microbiology, University of Lausanne, Lausanne, Switzerland
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zürich, Switzerland
| | | | - Mark Isalan
- Department of Life Sciences, Imperial College London, London, UK
- Imperial College Centre for Synthetic Biology, Imperial College London, London, UK
| | - James Sharpe
- Systems Biology Program, Centre for Genomic Regulation (CRG), Universitat Pompeu Fabra, Barcelona, Spain
- Institucio Catalana de Recerca i Estudis Avancats (ICREA), Barcelona, Spain
- EMBL Barcelona European Molecular Biology Laboratory, Barcelona, Spain
| | - Andreas Wagner
- Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zürich, Switzerland
- The Swiss Institute of Bioinformatics, Lausanne, Switzerland
- The Santa Fe Institute, Santa Fe, NM, USA
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45
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Jiménez A, Araya R, Paniagua D, Camacho-Mora Z, Du T, Golding G, Leandro-Astorga G, Rodríguez C, Quesada-Gómez C. Molecular epidemiology and antimicrobial resistance of Clostridium difficile in a national geriatric hospital in Costa Rica. J Hosp Infect 2018; 99:475-480. [DOI: 10.1016/j.jhin.2018.03.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 03/22/2018] [Indexed: 12/19/2022]
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Abstract
A major challenge in systems biology is to understand the relationship between a circuit's structure and its function, but how is this relationship affected if the circuit must perform multiple distinct functions within the same organism? In particular, to what extent do multi‐functional circuits contain modules which reflect the different functions? Here, we computationally survey a range of bi‐functional circuits which show no simple structural modularity: They can switch between two qualitatively distinct functions, while both functions depend on all genes of the circuit. Our analysis reveals two distinct classes: hybrid circuits which overlay two simpler mono‐functional sub‐circuits within their circuitry, and emergent circuits, which do not. In this second class, the bi‐functionality emerges from more complex designs which are not fully decomposable into distinct modules and are consequently less intuitive to predict or understand. These non‐intuitive emergent circuits are just as robust as their hybrid counterparts, and we therefore suggest that the common bias toward studying modular systems may hinder our understanding of real biological circuits.
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Affiliation(s)
- Alba Jiménez
- EMBL-CRG Systems Biology Research Unit, Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - James Cotterell
- EMBL-CRG Systems Biology Research Unit, Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Andreea Munteanu
- EMBL-CRG Systems Biology Research Unit, Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - James Sharpe
- EMBL-CRG Systems Biology Research Unit, Centre for Genomic Regulation, The Barcelona Institute of Science and Technology, Barcelona, Spain .,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
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47
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Alvarez M, Sanchez-Muñoz A, Santonja A, Fernández YP, Miramón J, Pedrinaci IZ, Llacer C, de Luque V, León ML, Jerez J, Villa LP, Lavado R, Ramirez C, Jiménez A, Rodrigo I, García E, Vicioso L, Conejo EA. Prognostic significance of immunohistochemical subtyping and PAM50 intrinsic subtypes in male breast cancer (MaBC). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw365.68] [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: 11/13/2022] Open
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48
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Bof MJ, Jiménez A, Locaso DE, García MA, Chiralt A. Grapefruit Seed Extract and Lemon Essential Oil as Active Agents in Corn Starch–Chitosan Blend Films. FOOD BIOPROCESS TECH 2016. [DOI: 10.1007/s11947-016-1789-8] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Richi P, Navío T, Cebrian L, Lojo L, Gonzalez L, Salido M, Castro P, Jiménez A, Martín M, Yuste J, Llorente J, Thuissard I, Sanz D, Muñoz-Fernández S. FRI0587 Evaluation of The Immune Response To Vaccines in Patients on Biological Therapy. Preliminary Data of Rier Study. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3503] [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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50
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López-Vidal O, Camejo D, Rivera-Cabrera F, Konigsberg M, Villa-Hernández J, Mendoza-Espinoza J, Pérez-Flores L, Sevilla F, Jiménez A, Díaz de León-Sánchez F. Mitochondrial ascorbate–glutathione cycle and proteomic analysis of carbonylated proteins during tomato (Solanum lycopersicum) fruit ripening. Food Chem 2016; 194:1064-72. [DOI: 10.1016/j.foodchem.2015.08.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 08/13/2015] [Accepted: 08/14/2015] [Indexed: 11/15/2022]
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