3,980 research outputs found

    Changes in Nutritional Properties and Bioactive Compounds in Cereals During Extrusion Cooking

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    Maintaining and improving the nutritional quality of foods during processing are the main market and industry concerns. Thus, research should focus on novel and sustainable ways for selecting the appropriate processing method that either increases or does not affect the nutrient content of foods. Thermal processing techniques such as extrusion cooking are widely used for producing breakfast cereals, snack foods, pasta, pet food, etc. Extrusion cooking is a continuous process that uses a combination of high-temperature, high-pressure, and high shear conditions in a short period of time, which results in molecular transformation and chemical reactions within the extruded products. Extrusion cooking brings on many biochemical changes such as denaturation of proteins, gelatinization of starch, lipid modifications, inactivation of microorganisms and enzymes, formation of volatile flavor components, and increase in soluble dietary fiber. Furthermore, extrusion cooking has the potential to improve the nutritional quality of the products by improving starch and protein digestibility and increasing the retention of bioactive compounds with antioxidant properties. Also, this highly efficient technology minimizes water pollution and energy consumption. This review aims to discuss the current information regarding changes in nutritional properties and bioactive compounds in cereals processed by extrusion cooking

    Effectiveness and safety of sofosbuvir‐based regimens plus an NS5A inhibitor for patients with HCV genotype 3 infection and cirrhosis: results of a multicenter real‐life cohort

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    [Abstract] Patients with HCV genotype 3 (GT3) infection and cirrhosis are currently the most difficult to cure. We report our experience with sofosbuvir+daclatasvir (SOF+DCV) or sofosbuvir/ledipasvir (SOF/LDV), with or without ribavirin (RBV) in clinical practice in this population. This was a multicenter observational study including cirrhotic patients infected by HCV GT3, treated with sofosbuvir plus an NS5A inhibitor (May 2014‐October 2015). In total, 208 patients were included: 98 (47%) treatment‐experienced, 42 (20%) decompensated and 55 (27%) MELD score >10. In 131 (63%), treatment was SOF+DCV and in 77 (37%), SOF/LDV. Overall, 86% received RBV. RBV addition and extension to 24 weeks was higher in the SOF/LDV group (95% vs 80%, P=.002 and 83% vs 72%, P=.044, respectively). A higher percentage of decompensated patients were treated with DCV than LDV (25% vs 12%, P=.013). Overall, SVR12 was 93.8% (195/208): 94% with SOF+DCV and 93.5% with SOF/LDV. SVR12 was achieved in 90.5% of decompensated patients. Eleven treatment failures: 10 relapses and one breakthrough. RBV addition did not improve SVR (RR: 1.08; P=.919). The single factor associated with failure to achieve SVR was platelet count <75×10E9/mL (RR: 3.50, P=.019). In patients with MELD <10, type of NS5A inhibitor did not impact on SVR12 (94% vs 97%; adjusted RR: 0.49). Thirteen patients (6.3%) had serious adverse events, including three deaths (1.4%) and one therapy discontinuation (0.5%), higher in decompensated patients (16.7% vs 3.6%, P<.006). In patients with GT3 infection and cirrhosis, SVR12 rates were high with both SOF+DCV and SOF/LDV, with few serious adverse events

    Empirical Modelling of Stem Cambium Heating Caused by Prescribed Burning in Mediterranean Pine Forest

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    This is the final version. Available on open access from MDPI via the DOI in this recordData Availability Statement: The data used in the current study can be obtained from the corresponding author on reasonable request.Little is known about the interactions between the variables involved in the post-fire response of Mediterranean pine species to prescribed burning (PB). Thus, it is essential to develop an empirical model in order to assess the influence of tree and stand attributes, burn season, and fire severity on the probability of stem cambium damage occurring. Prescribed burnings were conducted in different seasons and areas covering a wide climatic and ecological range. Potential explanatory variables were measured. A random effects hurdle model framework was used to evaluate the temperature duration above 60 °C as a proxy for stem cambium damage at tree scale. The results showed significant differences in cambium damage between the PB seasons. Pinus nigra was more resistant than other pine species. Bark thickness was critical for protecting cambium. Volume of crown scorch, percentage of stem scorch, and maximum outer bark temperature were directly related to temperature duration above 60 °C in the cambium. Prescribed burning conducted under tree canopy in Mediterranean pine species generally results in a low level of cambium damage. Empirical models could help managers to predict the effects of PB and thus select the most suitable prescriptions

    Preventing and addressing the stress reactions of health care workers caring for patients with COVID-19: Development of a digital platform (Be + against COVID)

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    Background: COVID-19 became a major public health concern in March 2020. Due to the high rate of hospitalizations for COVID-19 in a short time, health care workers and other involved staff are subjected to a large workload and high emotional distress. Objective: The objective of this study is to develop a digital tool to provide support resources that might prevent and consider acute stress reactions in health care workers and other support staff due to the COVID-19 pandemic. Methods: The contents of the digital platform were created through an evidence-based review and consensus conference. The website was built using the Google Blogger tool. The Android version of the app was developed in the Java and XML languages using Android Studio version 3.6, and the iOS version was developed in the Swift language using Xcode version 11.5. The app was evaluated externally by the Andalusian Agency for Healthcare Quality. Results: We detected the needs and pressing situations of frontline health care workers, and then, we proposed a serial of recommendations and support resources to address them. These resources were redesigned using the feedback received. A website in three different languages (Spanish, English, and Portuguese) and a mobile app were developed with these contents, and the AppSaludable Quality Seal was granted to the app. A specific self-report scale to measure acute stress and additional tools were included to support the health care workforce. This instrument has been used in several Latin American countries and has been adapted considering cultural differences. The resources section of the website was the most visited with 18, 516 out of 68, 913 (26.9%) visits, and the “Self-Report Acute Stress Scale” was the most visited resource with 6468 out of 18, 516 (34.9%) visits. Conclusions: The Be + against COVID platform (website and app) was developed and launched to offer a pool of recommendations and support resources, which were specifically designed to protect the psychological well-being and the work morale of health care workers. This is an original initiative different from the usual psychological assistance hotlines

    Risk of miscarriage after chorionic villus sampling.

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    OBJECTIVE: To estimate the risk of miscarriage associated to chorionic villus sampling (CVS). METHODS: This was a retrospective cohort study performed in eight fetal-medicine units in Spain, Belgium and Bulgaria. Two populations were included: first, all singleton pregnancies attending to their first-trimester assessment in Murcia, Spain, and second, all singleton pregnancies having a CVS following first-trimester assessment at any of the participating centers. We used propensity score matching analysis to estimate the association between CVS and miscarriage. We compared risks of miscarriage of CVS and non-CVS groups after propensity score matching (1:1 ratio). This procedure creates two comparable groups balancing the maternal and pregnancy characteristics that lead to CVS, in a similar way in which randomization operates in a randomized clinical trial. RESULTS: The study population consisted of 22,250 participants in the non-CVS group and 3,613 in the CVS group. The incidence of miscarriage in the CVS group was 2.1% (77/3,613), which was significantly higher than the 0.9% (207/22,250) in the non-CVS group (p <0.001). The propensity score algorithm matched 2,122 CVS cases with 2,122 non-CVS cases including 40 (1.9%) and 55 (2.6%) miscarriages in the CVS and non-CVS groups, respectively (OR 0.72 [95% CI 0.48 to 1.10]; p = 0.146). However, we found a significant interaction between the CVS risk of miscarriage and the risk of aneuploidies, suggesting a different effect of the CVS for different baseline characteristics in such a way that, when the risk of aneuploidies is low, the risk after CVS increases (OR 2.87 [95% CI 1.13 to 7.30]) but when the risk is high, the risk after CVS is paradoxically reduced (OR 0.47 [95% CI 0.28 to 0.76]), presumably due to prenatal diagnosis and termination of major aneuploidies that would have otherwise resulted in spontaneous miscarriage. CONCLUSIONS: The risk of miscarriage in women having a CVS is about 1% higher than in women without CVS, although this excess risk is not entirely due to the invasive procedure but to some extent the demographic and pregnancy characteristics of the patient undergoing CVS. After accounting for these risk factors and confining the analysis to low-risk pregnancies, CVS seems to increase the risk of miscarriage about three times above the patient's background-risk. Although this is a substantial increase in relative terms, in pregnancies without risk factors, the risk of miscarriage after CVS will still remain low and similar to or slightly higher than that of the general population. For example, if her risk of aneuploidy is 1 in a 1,000 (0.1%), her risk of miscarriage after CVS will increase to 0.3% (0.2% higher)

    On Multi-Index Filtrations Associated to Weierstraß Semigroups

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    This paper is a survey on the main techniques involved in the computation of the Weierstraß semigroup at several points of curves defined over perfect fields, with special emphasis on the case of two points. Some hints about the usage of some packages of the computer algebra software Singular are also given; these are however only valid for curves defined over Fp with p a prime number

    Estrategia invasiva de rutina en el síndrome coronario agudo sin elevación del segmento ST con disfunción renal. Resultados del registro ARIAM-SEMICYUC

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    Objetivo: Evaluar la utilización y efectividad de la estrategia invasiva de rutina (EIR) en pacientes con síndrome coronario agudo sin elevación de ST con disfunción renal en el mundo real. Métodos: Estudio de cohortes retrospectivo basado en el registro ARIAM-SEMICYUC (años 2011- 2014). Se consideró que había disfunción renal cuando el GFR (Cockroft-Gault) era menor de 60 ml/min (disfunción moderada) o de 30 ml/min (disfunción grave). Se excluyeron los pacientes en los que la coronariografía precoz (< 72 h) se debió a shock cardiogénico o isquemia recurrente. El desenlace primario fue la mortalidad hospitalaria. El control del confounding se realizó mediante un análisis de propensión. Resultados: Se analizan 4.279 pacientes, de los cuales un 26% tenía disfunción renal moderada y un 5% disfunción grave. Los pacientes con disfunción renal presentaron una mayor gravedad y comorbilidad, una mayor mortalidad hospitalaria (8,6 frente a 1,8%) y una menor utilización de la EIR (40 frente a 52%). Las OR ajustadas mediante emparejamiento para pacientes sin/con disfunción renal fueron de 0,38 (intervalo de confianza al 95% [IC95%] de 0,17 a 0,81) y 0,52 (IC95% de 0,32 a 0,87), respectivamente (p de interacción 0,4779). El impacto de la EIR (diferencia de riesgos ajustada) fue mayor en el grupo con disfunción renal (−5,1%, IC95% entre −8,1 y −2,1, frente a −1,6%, IC95% entre −2,6 y −0,6, p de interacción = 0,0335). Tampoco se detectó interacción significativa respecto a los demás enlaces considerados (mortalidad en UCI o a los 30 días, riesgo combinado de muerte o infarto, fracaso renal agudo o hemorragias moderadas/graves). Conclusiones: Los resultados evidencian que la efectividad de la EIR es similar en pacientes con función renal normal o reducida y alertan sobre una infrautilización de esta estrategia en estos últimos.Objective: To evaluate the use and effectiveness of a routine invasive strategy (RIS) in patients with acute coronary syndrome without persistent ST-segment elevation with renal dysfunction in the real world scenario. Methods: A retrospective cohort study based on the ARIAM-SEMICYUC Registry (2011-2014) was carried out. Renal dysfunction was defined as GFR (Cockroft-Gault)<60ml/min (moderate dysfunction) or<30ml/min (severe dysfunction). Patients in which early angiography (<72h) was performed due to cardiogenic shock or recurrent myocardial ischemia were excluded. The primary endpoint was hospital mortality. Confounding factors were controlled using propensity score analysis. Results: A total of 4,279 patients were analyzed, of which 26% had moderate renal dysfunction and 5% severe dysfunction. Patients with renal dysfunction had greater severity and comorbidity, higher hospital mortality (8.6 vs. 1.8%), and lesser use of the RIS (40 vs. 52%). The adjusted OR for mortality in patients without/with renal dysfunction were 0.38 (95% confidence interval [95%CI] 0.17 to 0.81) and 0.52 (95%CI 0.32 to 0.87), respectively (interaction P-value=.4779). The impact (adjusted risk difference) of RIS was higher in the group with renal dysfunction (-5.1%, 95%CI -8.1 to -2.1 vs. -1.6%, 95%CI -2.6 to -0.6; interaction P-value=.0335). No significant interaction was detected for the other endpoints considered (ICU mortality, 30-day mortality, myocardial infarction, acute renal failure or moderate/severe bleeding).Conclusions: The results suggest that the effectiveness of IRS is similar in patients with normal or abnormal renal function, and alert to the under-utilization of this strategy in such patients

    Previous SARS-CoV-2 Infection Increases B.1.1.7 Cross-Neutralization by Vaccinated Individuals

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    With the spread of new variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), there is a need to assess the protection conferred by both previous infections and current vaccination. Here we tested the neutralizing activity of infected and/or vaccinated individuals against pseudoviruses expressing the spike of the original SARS-CoV-2 isolate Wuhan-Hu-1 (WH1), the D614G mutant and the B.1.1.7 variant. Our data show that parameters of natural infection (time from infection and nature of the infecting variant) determined cross-neutralization. Uninfected vaccinees showed a small reduction in neutralization against the B.1.1.7 variant compared to both the WH1 strain and the D614G mutant. Interestingly, upon vaccination, previously infected individuals developed more robust neutralizing responses against B.1.1.7, suggesting that vaccines can boost the neutralization breadth conferred by natural infection
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