2,909 research outputs found
Mindfulness training and academic efficiency of Primary Education students in concentration tasks
El entrenamiento en mindfulness está relacionado con el desarrollo de la atención sostenida, implicada en el rendimiento académico. En esta investigación se analiza el efecto del entrenamiento en Mindfulness sobre la atención sostenida en una muestra de 43 niños divididos en grupo control y experimental. Se utilizó el test Toulouse-Pièron para medir la atención en el total de la muestra antes del entrenamiento en mindfulness y después. Los resultados evidencian una mejoría significativa del grupo experimental en su atención sostenida y en comparación al grupo control. Se discuten los resultados proponiéndose la práctica en Mindfulness para mejorar el rendimiento atencional.Mindfulness training is related to the development of sustained attention, a function included in academic efficiency. Through this research, we have analysed mindfulness training effect on sustained attention. We selected a sample of 43 children divided into control group and experimental group. We used the Toulouse-Pièron test in order to measure the attention level in the whole sample before and after the training. Results show a significant improvement among the experimental group pupils concerning the sustained attention and in comparison with the control group. Results are discussed and mindfulness practice is proposed to improve the attention performance
DERMATOFITOSIS PODAL EN PACIENTES DIABETICOS TIPO 1 y 2
La diabetes mellitus (DM) es un síndrome metabólico caracterizado por hiperglicemia. Los pacientes diabéticos presentan una mayor predisposición a las infecciones fúngicas superficiales y los agentes involucrados con mayor frecuencia corresponden a Candidaspp. y dermatofitos (Trichophyton rubrum, T. mentagrophytes, entre otros). En la presente investigación se determinó la frecuencia de dermatofitos en los pies de pacientes diabéticos tipo 1 y 2 relacionándolos con los factores epidemiológicos asociados. Entre Marzo y Junio 2006 , se examinaron los pies a 164 pacientes (75 mujeres y 89 hombres ) entre 29 y 84 años, que acudieron a la Asociación de Diabéticos de Chile (ADICH) para su control de rutina. Se recolectaron 202 muestrasclínicas (30 interortejos, 17 plantar y 155 uñas pies), que se cultivaron en Agar Sabouraud Glucosado y Lactritmel a 25° y 37°C por un período de 21 días. La mayoría de los pacientes eran DM Tipo 2 (79%). En 50 /164pacientes se obtuvo cultivo positivo, de 202 muestras clínicas analizadas se aisló dermatofitos en un 27.7%. T. rubrum fue el dermatofito con mayor aislamiento en pacientes DM 1 y 2 con cifras cercanas al 80%, mientras T. mentagrophytes fue aparentemente superior en DM 2. T. rubrum obtuvo las mayores frecuencias en todos los tipos de muestras (DM 1 y DM 2), mientras, T. mentagrophytes también se presentó en todos los tipos de muestras de DM 2 y solo en uñas en pacientes DM 1. Los hallazgos micológicos en los pies de pacientes diabéticos sonsimilares a lo reportado en la literatura.
Lactate Kinetic in Chicken pectoralis Muscle
Abstract We studied the effects of different dietary starch sources fed to poultry on the quality attributes and oxidative damage in fresh and aged chicken pectoralis muscle. In a corn-soya diet, 300 g.kg -1 of the starch from ground corn was replaced by starch from broken corn, ground sorghum or pure starch, and fed for 11 days prior to slaughter to male broilers. In pectoralis muscle, pH rate, colour, drip loss, glycogen and lactate were measured at 10, 45, 90 minutes and 24 hours postmortem. Protein, lipid oxidation and haem iron were measured in fresh and aged meat. Sorghum starch caused a lower initial pH, while broken corn and pure starch gave higher pH in the pectoralis muscle. Ground corn and pure starch sources showed the lowest pH (45 min postmortem) indicating faster decline curves. Ground sorghum produced a lower level of residual glycogen in muscle and a lower rate of protein oxidation while the highest glycogen and a higher protein oxidation rate was observed with pure starch Type of starch sources in diet received prior to slaughter affect the quality parameters in poultry meat. Particularly, ground sorghum improved meat quality whereas pure starch provoked a higher protein oxidation
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Temperature-related excess mortality in German cities at 2 °C and higher degrees of global warming
Background: Investigating future changes in temperature-related mortality as a function of global mean temperature (GMT) rise allows for the evaluation of policy-relevant climate change targets. So far, only few studies have taken this approach, and, in particular, no such assessments exist for Germany, the most populated country of Europe. Methods: We assess temperature-related mortality in 12 major German cities based on daily time-series of all-cause mortality and daily mean temperatures in the period 1993–2015, using distributed-lag non-linear models in a two-stage design. Resulting risk functions are applied to estimate excess mortality in terms of GMT rise relative to pre-industrial levels, assuming no change in demographics or population vulnerability. Results: In the observational period, cold contributes stronger to temperature-related mortality than heat, with overall attributable fractions of 5.49% (95%CI: 3.82–7.19) and 0.81% (95%CI: 0.72–0.89), respectively. Future projections indicate that this pattern could be reversed under progressing global warming, with heat-related mortality starting to exceed cold-related mortality at 3 °C or higher GMT rise. Across cities, projected net increases in total temperature-related mortality were 0.45% (95%CI: −0.02–1.06) at 3 °C, 1.53% (95%CI: 0.96–2.06) at 4 °C, and 2.88% (95%CI: 1.60–4.10) at 5 °C, compared to today's warming level of 1 °C. By contrast, no significant difference was found between projected total temperature-related mortality at 2 °C versus 1 °C of GMT rise. Conclusions: Our results can inform current adaptation policies aimed at buffering the health risks from increased heat exposure under climate change. They also allow for the evaluation of global mitigation efforts in terms of local health benefits in some of Germany's most populated cities. © 2020 The Author
Differential cytogenetic profile in advanced chronic myeloid leukemia with sequential lymphoblastic and myeloblastic blast crisis
Frequency of additional chromosomal abnormalities in chronic myeloid leukemia (CML) is estimated to be 7% in chronic phase and increases to 40–70% in advanced disease. Progression of CML from chronic phase to accelerated phase or blast crisis is often associated with secondary chromosomal aberrations. We report an exceptional case of CML as debut in lymphoblastic blast crisis and a subsequent progression in myeloblastic blast crisis with rare cytogenetic abnormalities
Overcoming the engineering constraints for scaling-up the state-of-the-art catalyst for tail-gas N2O decomposition
An efficient process is reported for preparing a state-of-the-art Fe-ferrierite catalyst for N2O decomposition under industrial tail-gas conditions. In the synthesis procedure we evaluate the very demanding constraints for scale-up; i.e. large reactor volumes are typically needed, long processing times and considerable amounts of waste water is generated. The proposed synthesis minimizes the amount of water used, and therefore the amount produced waste water is minimal; in this approach there is no liquid residual water stream that would need intensive processing. This has remarkable benefits in terms of process design, since the volume of equipment is reduced and the energy-intensive filtration is eliminated. This route exemplifies the concept of process intensification, with the ambition to re-engineer an existing process to make the industrial catalyst manufacture more sustainable. The so-obtained catalyst is active, selective and very stable under tail gas conditions containing H2O, NO and O2, together with N2O; keeping a high conversion during 70 h time on stream at 700 K, with a decay of 0.01%/h, while the standard reference catalyst decays at 0.06%/h; hence it deactivates six times slower, with ~5% absolute points of higher conversion. The excellent catalytic performance is ascribed to the differential speciation
Evidence on port-locking with heparin versus saline in patients with cancer not receiving chemotherapy: A randomized clinical trial
Objective: To assess the safety and efficacy of port-locking with heparin every 2 months vs. every 4 months and vs. saline solution every 2 months in patients with cancer not receiving active chemotherapy. The hypothesis stated that locking with heparin at four-month intervals and saline at two-month intervals would not increment > 10% of port obstructions. Methods: Multicentre, phase IV parallel, post-test control group study took place at the two chemotherapy units of oncology hospitals. Included patients with cancer with ports that completed the chemotherapy treatment but still having port maintenance care or blood samples taken up to four months. A sample of 126 patients with cancer in three arms was needed to detect a maximum difference of 10% for bioequivalence on the locking methods. Consecutive cases non-probabilistic sampling and randomized to one of the three groups; group A: received heparin 60 IU/mL every two months (control) vs. group B heparin every four months and vs. saline every two months in group C. Primary variables were the type of locking regimen, port obstruction, and absence of blood return, port-related infection, or venous thrombosis during the study period. Clinical and sociodemographic variables were also collected. Results: A total of 143 patients were randomly assigned; group A, 47 patients with heparin every 2 months, group B, 51 patients with heparin 4 months, and group C, 45 patients with saline every 2 months. All participants presented an adequate blood return and no obstructions, until the month of the 10th, when one participant in the group A receiving was withdrawn due to an absence of blood flow ( P 1/4 0.587). Conclusions: Port locks with heparin every 4 months or saline every 2 months did not show differences in safety maintenance, infection, or thrombosis compared to heparin every 2 months
Temperature-related excess mortality in German cities at 2 °C and higher degrees of global warming.
BACKGROUND: Investigating future changes in temperature-related mortality as a function of global mean temperature (GMT) rise allows for the evaluation of policy-relevant climate change targets. So far, only few studies have taken this approach, and, in particular, no such assessments exist for Germany, the most populated country of Europe. METHODS: We assess temperature-related mortality in 12 major German cities based on daily time-series of all-cause mortality and daily mean temperatures in the period 1993-2015, using distributed-lag non-linear models in a two-stage design. Resulting risk functions are applied to estimate excess mortality in terms of GMT rise relative to pre-industrial levels, assuming no change in demographics or population vulnerability. RESULTS: In the observational period, cold contributes stronger to temperature-related mortality than heat, with overall attributable fractions of 5.49% (95%CI: 3.82-7.19) and 0.81% (95%CI: 0.72-0.89), respectively. Future projections indicate that this pattern could be reversed under progressing global warming, with heat-related mortality starting to exceed cold-related mortality at 3 °C or higher GMT rise. Across cities, projected net increases in total temperature-related mortality were 0.45% (95%CI: -0.02-1.06) at 3 °C, 1.53% (95%CI: 0.96-2.06) at 4 °C, and 2.88% (95%CI: 1.60-4.10) at 5 °C, compared to today's warming level of 1 °C. By contrast, no significant difference was found between projected total temperature-related mortality at 2 °C versus 1 °C of GMT rise. CONCLUSIONS: Our results can inform current adaptation policies aimed at buffering the health risks from increased heat exposure under climate change. They also allow for the evaluation of global mitigation efforts in terms of local health benefits in some of Germany's most populated cities
IND-Enabling Studies for a Clinical Trial to Genetically Program a Persistent Cancer-Targeted Immune System
PURPOSE:
To improve persistence of adoptively transferred T-cell receptor (TCR)-engineered T cells and durable clinical responses, we designed a clinical trial to transplant genetically-modified hematopoietic stem cells (HSCs) together with adoptive cell transfer of T cells both engineered to express an NY-ESO-1 TCR. Here, we report the preclinical studies performed to enable an investigational new drug (IND) application.
EXPERIMENTAL DESIGN:
HSCs transduced with a lentiviral vector expressing NY-ESO-1 TCR and the PET reporter/suicide gene HSV1-sr39TK and T cells transduced with a retroviral vector expressing NY-ESO-1 TCR were coadministered to myelodepleted HLA-A2/Kb mice within a formal Good Laboratory Practice (GLP)-compliant study to demonstrate safety, persistence, and HSC differentiation into all blood lineages. Non-GLP experiments included assessment of transgene immunogenicity and in vitro viral insertion safety studies. Furthermore, Good Manufacturing Practice (GMP)-compliant cell production qualification runs were performed to establish the manufacturing protocols for clinical use.
RESULTS:
TCR genetically modified and ex vivo-cultured HSCs differentiated into all blood subsets in vivo after HSC transplantation, and coadministration of TCR-transduced T cells did not result in increased toxicity. The expression of NY-ESO-1 TCR and sr39TK transgenes did not have a detrimental effect on gene-modified HSC's differentiation to all blood cell lineages. There was no evidence of genotoxicity induced by the lentiviral vector. GMP batches of clinical-grade transgenic cells produced during qualification runs had adequate stability and functionality.
CONCLUSIONS:
Coadministration of HSCs and T cells expressing an NY-ESO-1 TCR is safe in preclinical models. The results presented in this article led to the FDA approval of IND 17471
Microbiota diversity in nonalcoholic fatty liver disease and in drug-induced liver injury
The gut microbiota could play a significant role in the progression of nonalcoholic fatty liver disease (NAFLD); however, its relevance in drug-induced liver injury (DILI) remains unexplored. Since the two hepatic disorders may share damage pathways, we analysed the metagenomic profile of the gut microbiota in NAFLD, with or without significant liver fibrosis, and in DILI, and we identified the main associated bacterial metabolic pathways. In the NAFLD group, we found a decrease in Alistipes, Barnesiella, Eisenbergiella, Flavonifractor, Fusicatenibacter, Gemminger, Intestinimonas, Oscillibacter, Parasutterella, Saccharoferementans and Subdoligranulum abundances compared with those in both the DILI and control groups. Additionally, we detected an increase in Enterobacter, Klebsiella, Sarcina and Turicibacter abundances in NAFLD, with significant liver fibrosis, compared with those in NAFLD with no/mild liver fibrosis. The DILI group exhibited a lower microbial bacterial richness than the control group, and lower abundances of Acetobacteroides, Blautia, Caloramator, Coprococcus, Flavobacterium, Lachnospira, Natronincola, Oscillospira, Pseudobutyrivibrio, Shuttleworthia, Themicanus and Turicibacter compared with those in the NAFLD and control groups. We found seven bacterial metabolic pathways that were impaired only in DILI, most of which were associated with metabolic biosynthesis. In the NAFLD group, most of the differences in the bacterial metabolic pathways found in relation to those in the DILI and control groups were related to fatty acid and lipid biosynthesis. In conclusion, we identified a distinct bacterial profile with specific bacterial metabolic pathways for each type of liver disorder studied. These differences can provide further insight into the physiopathology and development of NAFLD and DILI.This work was supported in part by a grant from the Instituto de Salud Carlos III (Spain) (PI18/01804, PI19/00883, PI21/01248), from the Consejería de Economía, Conocimiento, Empresas y Universidad (Junta de Andalucía, Spain) (PI18–RT‐3364, UMA18-FEDERJA-194), and from the Consejería de Salud (Junta de Andalucía, Spain) (PI-0285–2016). This study has been co-funded by FEDER funds (“A way to make Europe”) (“Andalucía se mueve con Europa”). CRD is supported by a grant from the Consejería de Transformación Económica, Industria, Conocimiento y Universidades de Junta de Andalucía (Spain) (DOC_01610). FMR is supported by a grant from the ISCIII (Spain) (FI19/00189). AC is supported by a grant from the ISCIII (Spain) (IFI18/00047). EGF is supported by the Nicolas Monardes program from the Consejería de Salud de Andalucía (Spain) (C-0031–2016). Funding for open access charge: Universidad de Málaga / CBUA (Spain)
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