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11,212 Research products, page 1 of 1,122

  • COVID-19
  • Publications
  • ES
  • Recolector de Ciencia Abierta, RECOLECTA

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  • Open Access English
    Authors: 
    Michael G. Sugiyama; Haotian Cui; Dar’ya S. Redka; Mehran Karimzadeh; Edurne Rujas; Hassaan Maan; Sikander Hayat; Kyle Cheung; Rahul Misra; Joseph B. McPhee; +13 more
    Publisher: BioRxiv
    Country: Spain
    Project: EC | SI (790012)

    The COVID-19 pandemic has highlighted the urgent need for the identification of new antiviral drug therapies for a variety of diseases. COVID-19 is caused by infection with the human coronavirus SARS-CoV-2, while other related human coronaviruses cause diseases ranging from severe respiratory infections to the common cold. We developed a computational approach to identify new antiviral drug targets and repurpose clinically-relevant drug compounds for the treatment of a range of human coronavirus diseases. Our approach is based on graph convolutional networks (GCN) and involves multiscale host-virus interactome analysis coupled to off-target drug predictions. Cell-based experimental assessment reveals several clinically-relevant drug repurposing candidates predicted by the in silico analyses to have antiviral activity against human coronavirus infection. In particular, we identify the MET inhibitor capmatinib as having potent and broad antiviral activity against several coronaviruses in a MET-independent manner, as well as novel roles for host cell proteins such as IRAK1/4 in supporting human coronavirus infection, which can inform further drug discovery studies. We gratefully acknowledge funding that supported this research support from the Ryerson University Faculty of Science (CNA), as well as funding support in the form of a CIFAR Catalyst Grant (JPJ and CNA), an NSERC Alliance Grant (CNA) and the Ryerson COVID-19 SRC Response Fund award (CNA). BW is partly supported by CIFAR AI Chairs Program. This work was also supported by a Mitacs award (BW), the European Union’s Horizon 2020 research and innovation program under a Marie Sklodowska-Curie grant (ER), by the CIFAR Azrieli Global Scholar program (JPJ), by the Ontario Early Researcher Awards program (JPJ and CNA), and by the Canada Research Chairs program (JPJ). We also thank Dr. James Rini (University of Toronto) for the kind gift of the 9.8E12 antibody used to detect the 229E Spike protein, and Dr. Scott Gray-Owen (University of Toronto) for the kind gift of the NL63 human coronavirus. Peer reviewed

  • Publication . Article . 2023
    Open Access English
    Authors: 
    Sánchez Pastor, Paula;
    Publisher: Banco de España
    Country: Spain

    Rationale Turkey is identified annually as a material country for the Spanish and euro area banking systems. Moreover, Turkey and Spain are linked by major trade and financial flows. It is therefore important to monitor the country’s macro-financial situation and main weaknesses. Takeaways The Turkish economy continued to post very high inflation rates at end-2022, while economic activity began to slow in Q3, following its strong previous momentum. All of this in the context of sizeable external financing needs, foreign currency debt and low international reserves. Fiscal policy performed better than expected, and the country’s accounts remain healthy. In terms of monetary policy, in August the Turkish central bank resumed the process of reducing the policy interest rate initiated a year earlier, with the real interest rate standing at -75.5% in November. Nonetheless, macroprudential and regulatory measures were implemented to keep credit growth in check and encourage only lending to certain productive sectors. Meanwhile, the banking sector’s balance sheets remain relatively healthy, although some indicators have worsened.

  • Publication . Article . 2023
    Open Access
    Authors: 
    Sánchez Pastor, Paula;
    Publisher: Banco de España
    Country: Spain

    Motivación: Turquía se identifica anualmente como un país material para el sistema bancario español y para el del área del euro. Además, mantienen importantes flujos comerciales y financieros. Por ello, es relevante hacer un seguimiento de la situación macrofinanciera del país y de sus principales vulnerabilidades. Ideas principales: • La economía turca siguió registrando tasas muy elevas de inflación a finales de 2022, y la actividad económica comenzó a moderarse en el tercer trimestre, tras su fuerte dinamismo previo. Todo ello en un contexto de cuantiosas necesidades de financiación exterior, endeudamiento en moneda extranjera y reducidas reservas internacionales. • La política fiscal evolucionó mejor de lo previsto, manteniéndose saneadas sus cuentas. En cuanto a la política monetaria, el banco central de Turquía retomó en agosto el proceso de reducción del tipo de interés oficial iniciado un año antes, situando el tipo de interés real en el –75,5 % en noviembre. • No obstante, para controlar el crecimiento del crédito y favorecer solo el dirigido a ciertos sectores productivos, se introdujeron medidas macroprudenciales y regulatorias. Mientras, los balances del sector bancario se mantienen relativamente saneados, aunque algunos indicadores se han deteriorado.

  • Open Access
    Authors: 
    Xiansheng Liu; Hadiatullah Hadiatullah; Jürgen Schnelle-Kreis; Yanning Xu; Mingqi Yue; Xun Zhang; Xavier Querol; Xin Cao; Jan Bendl; Josef Cyrys; +5 more
    Publisher: Elsevier
    Countries: Germany, Spain

    This study aimed to evaluate the levels and phenomenology of equivalent black carbon (eBC) at the city center of Augsburg, Germany (01/2018 to 12/2020). Furthermore, the potential health risk of eBC based on equivalent numbers of passively smoked cigarettes (PSC) was also evaluated, with special emphasis on the impact caused by the COVID19 lockdown restriction measures. As it could be expected, peak concentrations of eBC were commonly recorded in morning (06:00-8:00 LT) and night (19:00-22:00 LT) in all seasons, coinciding with traffic rush hours and atmospheric stagnation. The variability of eBC was highly influenced by diurnal variations in traffic and meteorology (air temperature (T), mixing-layer height (MLH), wind speed (WS)) across days and seasons. Furthermore, a marked "weekend effect" was evidenced, with an average eBC decrease of ∼35% due to lower traffic flow. During the COVID19 lockdown period, an average ∼60% reduction of the traffic flow resulted in ∼30% eBC decrease, as the health risks of eBC exposure was markedly reduced during this period. The implementation of a multilinear regression analysis allowed to explain for 53% of the variability in measured eBC, indicating that the several factors (e.g., traffic and meteorology) may contribute simultaneously to this proportion. Overall, this study will provide valuable input to the policy makers to mitigate eBC pollutant and its adverse effect on environment and human health. The work is funded by National Natural Science Foundation of China (42101470), Support Project of High-level Teachers in Beijing Municipal Universities in the Period of 13th Five–year Plan (CIT&TCD201904037), the RI-URBANS project (Research Infrastructures Services Reinforcing Air Quality Monitoring Capacities in European Urban & Industrial Areas, European Union's Horizon 2020 research and innovation program, Green Deal, European Commission, contract 101036245), the dtec.bw -Digitalization and Technology Research Center of the Bundeswehr (project MORE), and Peiyang Future Scholar Scholarship (6120000246). We would like to thank to the Administration of Augsburg City for giving access to the traffic data (Tiefbauamt, Markus Furnier). We also would like to thank Prof. Dr. Stefan Emeis from Institute of Meteorology and Climate Research - Atmospheric Environmental Research (IMK-IFU) of Karlsruhe Institute of Technology for providing a ceilometer. Peer reviewed

  • Open Access
    Authors: 
    Silvia Cuenca; Zaida Soler; Gerard Serrano-Gómez; Zixuan Xie; Jordi Barquinero; Joaquim Roca; Jose-Maria Sirvent; Chaysavanh Manichanh;
    Publisher: MDPI AG
    Country: Spain
    Project: EC | FunHoMic (812969)

    Background: Research into the association between the microbiome and SARS-CoV-2 infection and acute respiratory distress syndrome remains unclear. Here we examined the dynamics of the gut and respiratory microbiomes in severe COVID-19 cases in need of mechanical ventilation in the intensive care unit (ICU). Methods: We recruited 76 critically ill patients (48 with COVID-19 and 32 without COVID-19) and 17 healthy controls (HCs) and monitored them for up to 4 weeks. We analyzed the bacterial and fungal taxonomic profiles and loads of 232 gut and respiratory samples and we measured blood levels of Interleukin 6, IgG, and IgM in COVID-19 patients. Results: At ICU admission, bacterial composition and load in the gut and respiratory samples were altered in critically ill patients compared to HCs. Six bacterial species could discriminate ICU-COV(+) from ICU-COV(-) cases. During their time in the ICU, all patients experienced increased bacterial and fungal loads, decreased bacterial richness, and progressive changes in bacterial and fungal taxonomic profiles. In ICU-COV(+) patients, Pseudomonas was found positively and Streptococcus negatively correlated with the length of ICU stay. Respiratory bacterial signatures, associated with disease severity and inflammation markers, were predictive of death and a fecal dysbiosis score, associated negatively with PaO2/FiO2 ratio, could be used as an additional indicator for ICU admission. Conclusion: We propose using a high-throughput sequencing approach as an alternative to traditional isolation techniques to monitor the ICU-COV(+) patient infection. Zixuan Xie received a fellowship from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Action, Innovative Training Network: FunHoMic; grant number 812969. Chaysavanh Manichanh received a grant from the Instituto de Salud Carlos III/FEDER (PI17/00614; PI20/00130) No

  • Open Access English
    Authors: 
    Juana del Valle-Mendoza; Yordi Tarazona-Castro; Alfredo Merino-Luna; Hugo Carrillo-Ng; Sungmin Kym; Miguel Angel Aguilar-Luis; Luis J. del Valle; Ronald Aquino-Ortega; Johanna Martins-Luna; Isaac Peña-Tuesta; +1 more
    Country: Spain

    AbstractBackgroundAt the end of 2019, a novel coronavirus denominated SARS-CoV-2 rapidly spread through the world causing the pandemic coronavirus disease known as COVID-19. The difference in the inflammatory response against SARS-CoV-2 infection among people living at different altitudes is a variable not yet studied.MethodsA descriptive cross-sectional study was performed in two Peruvian cities at different altitudes for comparison: Lima and Huaraz. Five important proinflammatory cytokines were measured including: IL-6, IL-2, IL-10, IFN-γand TNF-α using ELISA assays.ResultsA total of 35 COVID-19 patients and 10 healthy subjects were recruited from each study site. The mean levels of IL-6 (p < 0.03) and TNF-α (p < 0.01) were significantly different among the study groups. In the case of IL-6, patients from Lima had a mean level of 16.2 pg/ml (healthy) and 48.3 pg/ml (COVID-19), meanwhile, patients from Huaraz had levels of 67.3 pg/ml (healthy) and 97.9 pg/ml (COVID-19). Regarding TNF-α, patients from Lima had a mean level of 25.9 pg/ml (healthy) and 61.6 pg/ml (COVID-19), meanwhile, patients from Huaraz had levels of 89.0 pg/ml (healthy) and 120.6 pg/ml (COVID-19). The levels of IL-2, IL-10 and IFN-γ were not significantly different in the study groups.ConclusionPatients with COVID-19 residing at high-altitude tend to have higher levels of inflammatory cytokines compared to patients living at sea level, particularly IL-6 and TNF-α. A better understanding of the inflammatory response in different populations can contribute to the implementation of therapeutic and preventive approaches. Further studies evaluating more patients, a greater variety of cytokines and their clinical impact are required.

  • Open Access
    Authors: 
    Álvaro Leitao; Carlos Vázquez;
    Publisher: Elsevier
    Country: Spain

    [Abstract]: In this article we mainly extend a newly introduced deterministic model for the COVID-19 disease to a stochastic setting. More precisely, we incorporated randomness in some coefficients by assuming that they follow a prescribed stochastic dynamics. In this way, the model variables are now represented by stochastic process, that can be simulated by appropriately solving the system of stochastic differential equations. Thus, the model becomes more complete and flexible than the deterministic analogous, as it incorporates additional uncertainties which are present in more realistic situations. In particular, confidence intervals for the main variables and worst case scenarios can be computed.

  • Open Access
    Authors: 
    Manuel Monge;
    Publisher: Elsevier BV
    Country: Spain

    This paper deals with the analysis of the evolution of international trade after COVID-19, examining commodity prices, the shipping industry, and the influence of the cost of bunker fuel. To this end, we use techniques based on fractional integration, fractional cointegration VAR (FCVAR) and wavelet analysis. Monthly data relating to heavy fuel oil prices and the shipping market from October 2011 to September 2021 are used. Using fractional integration in the post-break period, a lack of mean reversion is observed in all cases, which means that, for the commodity prices and shipping market indices, a change in trend will be permanent after COVID-19 unless strong measures are carried out by the authorities. Using wavelet analysis, we conclude that the demand shock represented in the indices mentioned above has led the price of fuel oil since the beginning of the pandemic, and bunker fuel is not relevant in determining the cost of maritime transport. post-print 2426 KB

  • Open Access
    Authors: 
    García-Murria, Maria Jesús; Gadea-Salom, Laura; Moreno, Sandra; Zaragoza, Oscar; Brun, Alejandro; Mingarro, Ismael; Martínez-Gil, Luis;
    Publisher: Cold Spring Harbor Laboratory
    Country: Spain
    Project: EC | EVA-GLOBAL (871029)

    The novel severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has caused the pandemic disease known as coronavirus disease 2019 (COVID-19). COVID-19 vaccines were developed at record speed and were authorized approximately a year after the original outbreak. This fast response saved the lives of countless individuals and reduced the disease burden of many more. The experience has served as a reminder of the necessity to implement solid vaccine development platforms and fast production pipelines. Manufacturing vaccines for enveloped viruses, including some SARS-CoV-2 vaccines, often relies on the production of large quantities of viruses in vitro. Thus, speeding up or increasing virus production would expedite vaccine development. With this objective in mind, we established a high throughput screening (HTS) to identify small molecules that enhance or speed up host-virus membrane fusion. Among the HTS hits, we identified that ethynylestradiol augments SARS-CoV-2 fusion activity in both the absence and presence of TMPRSS2. Furthermore, we confirmed that ethynylestradiol can boost the growth of not only SARS-CoV-2 but also Influenza A virus in vitro. A small molecule with these characteristics could be implemented to improve vaccines production. We thank the Generalitat Valenciana (PROMETEO/2019/065) and the Spanish Ministry of Science and Innovation (PID2020-119111GB-I00). We thank P. Selvi for excellent technical assistance. O.Z. is funded by grant PID2020-114546RB-I00 from National Research Agency (Spanish Ministry for Science and Innovation). This publication was also supported by the European Virus Archive GLOBAL (EVA-GLOBAL) project which has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement 871029. No

  • Open Access
    Authors: 
    Fernando González-Laxe; Rodríguez Docampo María José;
    Country: Spain

    [Resumen] El presente volumen recoge los resultados del “Congreso Internacional Marítimo: Los factores de resiliencia de las regiones marítimas en el mundo post-Covid”, celebrado los días 5 y 6 de octubre de 2022 en la Escuela Técnica Superior de Náutica y Máquinas de A Coruña, cuya organización corrió a cargo del Instituto Universitario de Estudios Marítimos. El congreso se ha planteado sobre la base de ponencias científicas, en las disciplinas de Derecho, Economía y Náutica, aportando una visión multidimensional sobre el transporte marítimo de mercancías y de pasajeros, impacto económico de la actividad portuaria en España, innovación tecnológica en la actividad marítima y sostenibilidad del medio marino en la acuicultura y marisqueo. Así mismo, se ha analizado desde distintas perspectivas los efectos y repercusiones postpandemia Covid-19 en el ámbito de la navegación marítima. [Abstract] The present volumen collects the results of the “Congreso Internacional Marítimo: Los factores de resiliencia de las regiones marítimas en el mundo post-Covid” held on October 5 and 6, 2022 at the Escuela Técnica Superior de Náutica y Máquinas de A Coruña and organized by the Instituto Universitario de Estudios Marítimos. The congress was based around scientific presentations, in the disciplines of Law, Economics and Nautical, providing a multidimensional view on the maritime transport of goods and passengers, economic impact of port activity in Spain, technological innovation in maritime activity and sustainability of the marine environment in aquaculture and shellfishing. Likewise, the effects and repercussions of the post-Covid-19 pandemic in the field of maritime navigation have been analyzed from different perspectives. Xunta de Galicia; G000708

Advanced search in Research products
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The following results are related to COVID-19. Are you interested to view more results? Visit OpenAIRE - Explore.
11,212 Research products, page 1 of 1,122
  • Open Access English
    Authors: 
    Michael G. Sugiyama; Haotian Cui; Dar’ya S. Redka; Mehran Karimzadeh; Edurne Rujas; Hassaan Maan; Sikander Hayat; Kyle Cheung; Rahul Misra; Joseph B. McPhee; +13 more
    Publisher: BioRxiv
    Country: Spain
    Project: EC | SI (790012)

    The COVID-19 pandemic has highlighted the urgent need for the identification of new antiviral drug therapies for a variety of diseases. COVID-19 is caused by infection with the human coronavirus SARS-CoV-2, while other related human coronaviruses cause diseases ranging from severe respiratory infections to the common cold. We developed a computational approach to identify new antiviral drug targets and repurpose clinically-relevant drug compounds for the treatment of a range of human coronavirus diseases. Our approach is based on graph convolutional networks (GCN) and involves multiscale host-virus interactome analysis coupled to off-target drug predictions. Cell-based experimental assessment reveals several clinically-relevant drug repurposing candidates predicted by the in silico analyses to have antiviral activity against human coronavirus infection. In particular, we identify the MET inhibitor capmatinib as having potent and broad antiviral activity against several coronaviruses in a MET-independent manner, as well as novel roles for host cell proteins such as IRAK1/4 in supporting human coronavirus infection, which can inform further drug discovery studies. We gratefully acknowledge funding that supported this research support from the Ryerson University Faculty of Science (CNA), as well as funding support in the form of a CIFAR Catalyst Grant (JPJ and CNA), an NSERC Alliance Grant (CNA) and the Ryerson COVID-19 SRC Response Fund award (CNA). BW is partly supported by CIFAR AI Chairs Program. This work was also supported by a Mitacs award (BW), the European Union’s Horizon 2020 research and innovation program under a Marie Sklodowska-Curie grant (ER), by the CIFAR Azrieli Global Scholar program (JPJ), by the Ontario Early Researcher Awards program (JPJ and CNA), and by the Canada Research Chairs program (JPJ). We also thank Dr. James Rini (University of Toronto) for the kind gift of the 9.8E12 antibody used to detect the 229E Spike protein, and Dr. Scott Gray-Owen (University of Toronto) for the kind gift of the NL63 human coronavirus. Peer reviewed

  • Publication . Article . 2023
    Open Access English
    Authors: 
    Sánchez Pastor, Paula;
    Publisher: Banco de España
    Country: Spain

    Rationale Turkey is identified annually as a material country for the Spanish and euro area banking systems. Moreover, Turkey and Spain are linked by major trade and financial flows. It is therefore important to monitor the country’s macro-financial situation and main weaknesses. Takeaways The Turkish economy continued to post very high inflation rates at end-2022, while economic activity began to slow in Q3, following its strong previous momentum. All of this in the context of sizeable external financing needs, foreign currency debt and low international reserves. Fiscal policy performed better than expected, and the country’s accounts remain healthy. In terms of monetary policy, in August the Turkish central bank resumed the process of reducing the policy interest rate initiated a year earlier, with the real interest rate standing at -75.5% in November. Nonetheless, macroprudential and regulatory measures were implemented to keep credit growth in check and encourage only lending to certain productive sectors. Meanwhile, the banking sector’s balance sheets remain relatively healthy, although some indicators have worsened.

  • Publication . Article . 2023
    Open Access
    Authors: 
    Sánchez Pastor, Paula;
    Publisher: Banco de España
    Country: Spain

    Motivación: Turquía se identifica anualmente como un país material para el sistema bancario español y para el del área del euro. Además, mantienen importantes flujos comerciales y financieros. Por ello, es relevante hacer un seguimiento de la situación macrofinanciera del país y de sus principales vulnerabilidades. Ideas principales: • La economía turca siguió registrando tasas muy elevas de inflación a finales de 2022, y la actividad económica comenzó a moderarse en el tercer trimestre, tras su fuerte dinamismo previo. Todo ello en un contexto de cuantiosas necesidades de financiación exterior, endeudamiento en moneda extranjera y reducidas reservas internacionales. • La política fiscal evolucionó mejor de lo previsto, manteniéndose saneadas sus cuentas. En cuanto a la política monetaria, el banco central de Turquía retomó en agosto el proceso de reducción del tipo de interés oficial iniciado un año antes, situando el tipo de interés real en el –75,5 % en noviembre. • No obstante, para controlar el crecimiento del crédito y favorecer solo el dirigido a ciertos sectores productivos, se introdujeron medidas macroprudenciales y regulatorias. Mientras, los balances del sector bancario se mantienen relativamente saneados, aunque algunos indicadores se han deteriorado.

  • Open Access
    Authors: 
    Xiansheng Liu; Hadiatullah Hadiatullah; Jürgen Schnelle-Kreis; Yanning Xu; Mingqi Yue; Xun Zhang; Xavier Querol; Xin Cao; Jan Bendl; Josef Cyrys; +5 more
    Publisher: Elsevier
    Countries: Germany, Spain

    This study aimed to evaluate the levels and phenomenology of equivalent black carbon (eBC) at the city center of Augsburg, Germany (01/2018 to 12/2020). Furthermore, the potential health risk of eBC based on equivalent numbers of passively smoked cigarettes (PSC) was also evaluated, with special emphasis on the impact caused by the COVID19 lockdown restriction measures. As it could be expected, peak concentrations of eBC were commonly recorded in morning (06:00-8:00 LT) and night (19:00-22:00 LT) in all seasons, coinciding with traffic rush hours and atmospheric stagnation. The variability of eBC was highly influenced by diurnal variations in traffic and meteorology (air temperature (T), mixing-layer height (MLH), wind speed (WS)) across days and seasons. Furthermore, a marked "weekend effect" was evidenced, with an average eBC decrease of ∼35% due to lower traffic flow. During the COVID19 lockdown period, an average ∼60% reduction of the traffic flow resulted in ∼30% eBC decrease, as the health risks of eBC exposure was markedly reduced during this period. The implementation of a multilinear regression analysis allowed to explain for 53% of the variability in measured eBC, indicating that the several factors (e.g., traffic and meteorology) may contribute simultaneously to this proportion. Overall, this study will provide valuable input to the policy makers to mitigate eBC pollutant and its adverse effect on environment and human health. The work is funded by National Natural Science Foundation of China (42101470), Support Project of High-level Teachers in Beijing Municipal Universities in the Period of 13th Five–year Plan (CIT&TCD201904037), the RI-URBANS project (Research Infrastructures Services Reinforcing Air Quality Monitoring Capacities in European Urban & Industrial Areas, European Union's Horizon 2020 research and innovation program, Green Deal, European Commission, contract 101036245), the dtec.bw -Digitalization and Technology Research Center of the Bundeswehr (project MORE), and Peiyang Future Scholar Scholarship (6120000246). We would like to thank to the Administration of Augsburg City for giving access to the traffic data (Tiefbauamt, Markus Furnier). We also would like to thank Prof. Dr. Stefan Emeis from Institute of Meteorology and Climate Research - Atmospheric Environmental Research (IMK-IFU) of Karlsruhe Institute of Technology for providing a ceilometer. Peer reviewed

  • Open Access
    Authors: 
    Silvia Cuenca; Zaida Soler; Gerard Serrano-Gómez; Zixuan Xie; Jordi Barquinero; Joaquim Roca; Jose-Maria Sirvent; Chaysavanh Manichanh;
    Publisher: MDPI AG
    Country: Spain
    Project: EC | FunHoMic (812969)

    Background: Research into the association between the microbiome and SARS-CoV-2 infection and acute respiratory distress syndrome remains unclear. Here we examined the dynamics of the gut and respiratory microbiomes in severe COVID-19 cases in need of mechanical ventilation in the intensive care unit (ICU). Methods: We recruited 76 critically ill patients (48 with COVID-19 and 32 without COVID-19) and 17 healthy controls (HCs) and monitored them for up to 4 weeks. We analyzed the bacterial and fungal taxonomic profiles and loads of 232 gut and respiratory samples and we measured blood levels of Interleukin 6, IgG, and IgM in COVID-19 patients. Results: At ICU admission, bacterial composition and load in the gut and respiratory samples were altered in critically ill patients compared to HCs. Six bacterial species could discriminate ICU-COV(+) from ICU-COV(-) cases. During their time in the ICU, all patients experienced increased bacterial and fungal loads, decreased bacterial richness, and progressive changes in bacterial and fungal taxonomic profiles. In ICU-COV(+) patients, Pseudomonas was found positively and Streptococcus negatively correlated with the length of ICU stay. Respiratory bacterial signatures, associated with disease severity and inflammation markers, were predictive of death and a fecal dysbiosis score, associated negatively with PaO2/FiO2 ratio, could be used as an additional indicator for ICU admission. Conclusion: We propose using a high-throughput sequencing approach as an alternative to traditional isolation techniques to monitor the ICU-COV(+) patient infection. Zixuan Xie received a fellowship from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie Action, Innovative Training Network: FunHoMic; grant number 812969. Chaysavanh Manichanh received a grant from the Instituto de Salud Carlos III/FEDER (PI17/00614; PI20/00130) No

  • Open Access English
    Authors: 
    Juana del Valle-Mendoza; Yordi Tarazona-Castro; Alfredo Merino-Luna; Hugo Carrillo-Ng; Sungmin Kym; Miguel Angel Aguilar-Luis; Luis J. del Valle; Ronald Aquino-Ortega; Johanna Martins-Luna; Isaac Peña-Tuesta; +1 more
    Country: Spain

    AbstractBackgroundAt the end of 2019, a novel coronavirus denominated SARS-CoV-2 rapidly spread through the world causing the pandemic coronavirus disease known as COVID-19. The difference in the inflammatory response against SARS-CoV-2 infection among people living at different altitudes is a variable not yet studied.MethodsA descriptive cross-sectional study was performed in two Peruvian cities at different altitudes for comparison: Lima and Huaraz. Five important proinflammatory cytokines were measured including: IL-6, IL-2, IL-10, IFN-γand TNF-α using ELISA assays.ResultsA total of 35 COVID-19 patients and 10 healthy subjects were recruited from each study site. The mean levels of IL-6 (p < 0.03) and TNF-α (p < 0.01) were significantly different among the study groups. In the case of IL-6, patients from Lima had a mean level of 16.2 pg/ml (healthy) and 48.3 pg/ml (COVID-19), meanwhile, patients from Huaraz had levels of 67.3 pg/ml (healthy) and 97.9 pg/ml (COVID-19). Regarding TNF-α, patients from Lima had a mean level of 25.9 pg/ml (healthy) and 61.6 pg/ml (COVID-19), meanwhile, patients from Huaraz had levels of 89.0 pg/ml (healthy) and 120.6 pg/ml (COVID-19). The levels of IL-2, IL-10 and IFN-γ were not significantly different in the study groups.ConclusionPatients with COVID-19 residing at high-altitude tend to have higher levels of inflammatory cytokines compared to patients living at sea level, particularly IL-6 and TNF-α. A better understanding of the inflammatory response in different populations can contribute to the implementation of therapeutic and preventive approaches. Further studies evaluating more patients, a greater variety of cytokines and their clinical impact are required.

  • Open Access
    Authors: 
    Álvaro Leitao; Carlos Vázquez;
    Publisher: Elsevier
    Country: Spain

    [Abstract]: In this article we mainly extend a newly introduced deterministic model for the COVID-19 disease to a stochastic setting. More precisely, we incorporated randomness in some coefficients by assuming that they follow a prescribed stochastic dynamics. In this way, the model variables are now represented by stochastic process, that can be simulated by appropriately solving the system of stochastic differential equations. Thus, the model becomes more complete and flexible than the deterministic analogous, as it incorporates additional uncertainties which are present in more realistic situations. In particular, confidence intervals for the main variables and worst case scenarios can be computed.

  • Open Access
    Authors: 
    Manuel Monge;
    Publisher: Elsevier BV
    Country: Spain

    This paper deals with the analysis of the evolution of international trade after COVID-19, examining commodity prices, the shipping industry, and the influence of the cost of bunker fuel. To this end, we use techniques based on fractional integration, fractional cointegration VAR (FCVAR) and wavelet analysis. Monthly data relating to heavy fuel oil prices and the shipping market from October 2011 to September 2021 are used. Using fractional integration in the post-break period, a lack of mean reversion is observed in all cases, which means that, for the commodity prices and shipping market indices, a change in trend will be permanent after COVID-19 unless strong measures are carried out by the authorities. Using wavelet analysis, we conclude that the demand shock represented in the indices mentioned above has led the price of fuel oil since the beginning of the pandemic, and bunker fuel is not relevant in determining the cost of maritime transport. post-print 2426 KB

  • Open Access
    Authors: 
    García-Murria, Maria Jesús; Gadea-Salom, Laura; Moreno, Sandra; Zaragoza, Oscar; Brun, Alejandro; Mingarro, Ismael; Martínez-Gil, Luis;
    Publisher: Cold Spring Harbor Laboratory
    Country: Spain
    Project: EC | EVA-GLOBAL (871029)

    The novel severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has caused the pandemic disease known as coronavirus disease 2019 (COVID-19). COVID-19 vaccines were developed at record speed and were authorized approximately a year after the original outbreak. This fast response saved the lives of countless individuals and reduced the disease burden of many more. The experience has served as a reminder of the necessity to implement solid vaccine development platforms and fast production pipelines. Manufacturing vaccines for enveloped viruses, including some SARS-CoV-2 vaccines, often relies on the production of large quantities of viruses in vitro. Thus, speeding up or increasing virus production would expedite vaccine development. With this objective in mind, we established a high throughput screening (HTS) to identify small molecules that enhance or speed up host-virus membrane fusion. Among the HTS hits, we identified that ethynylestradiol augments SARS-CoV-2 fusion activity in both the absence and presence of TMPRSS2. Furthermore, we confirmed that ethynylestradiol can boost the growth of not only SARS-CoV-2 but also Influenza A virus in vitro. A small molecule with these characteristics could be implemented to improve vaccines production. We thank the Generalitat Valenciana (PROMETEO/2019/065) and the Spanish Ministry of Science and Innovation (PID2020-119111GB-I00). We thank P. Selvi for excellent technical assistance. O.Z. is funded by grant PID2020-114546RB-I00 from National Research Agency (Spanish Ministry for Science and Innovation). This publication was also supported by the European Virus Archive GLOBAL (EVA-GLOBAL) project which has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement 871029. No

  • Open Access
    Authors: 
    Fernando González-Laxe; Rodríguez Docampo María José;
    Country: Spain

    [Resumen] El presente volumen recoge los resultados del “Congreso Internacional Marítimo: Los factores de resiliencia de las regiones marítimas en el mundo post-Covid”, celebrado los días 5 y 6 de octubre de 2022 en la Escuela Técnica Superior de Náutica y Máquinas de A Coruña, cuya organización corrió a cargo del Instituto Universitario de Estudios Marítimos. El congreso se ha planteado sobre la base de ponencias científicas, en las disciplinas de Derecho, Economía y Náutica, aportando una visión multidimensional sobre el transporte marítimo de mercancías y de pasajeros, impacto económico de la actividad portuaria en España, innovación tecnológica en la actividad marítima y sostenibilidad del medio marino en la acuicultura y marisqueo. Así mismo, se ha analizado desde distintas perspectivas los efectos y repercusiones postpandemia Covid-19 en el ámbito de la navegación marítima. [Abstract] The present volumen collects the results of the “Congreso Internacional Marítimo: Los factores de resiliencia de las regiones marítimas en el mundo post-Covid” held on October 5 and 6, 2022 at the Escuela Técnica Superior de Náutica y Máquinas de A Coruña and organized by the Instituto Universitario de Estudios Marítimos. The congress was based around scientific presentations, in the disciplines of Law, Economics and Nautical, providing a multidimensional view on the maritime transport of goods and passengers, economic impact of port activity in Spain, technological innovation in maritime activity and sustainability of the marine environment in aquaculture and shellfishing. Likewise, the effects and repercussions of the post-Covid-19 pandemic in the field of maritime navigation have been analyzed from different perspectives. Xunta de Galicia; G000708