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<h1 data-aos="fade-down" id="covid-19-sentry">Covid-19 Sentry</h1>
<h1 data-aos="fade-right" data-aos-anchor-placement="top-bottom" id="contents">Contents</h1>
<ul>
<li><a href="#from-preprints">From Preprints</a></li>
<li><a href="#from-clinical-trials">From Clinical Trials</a></li>
<li><a href="#from-pubmed">From PubMed</a></li>
<li><a href="#from-patent-search">From Patent Search</a></li>
</ul>
<h1 data-aos="fade-right" id="from-preprints">From Preprints</h1>
<ul>
<li><strong>Multi-omic comparative analysis of COVID-19 and bacterial sepsis-induced ARDS</strong> -
<div>
<p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom">
Background: Acute respiratory distress syndrome (ARDS), a life-threatening condition characterized by hypoxemia and poor lung compliance, is associated with high mortality. ARDS induced by COVID-19 has similar clinical presentations and pathological manifestations as non-COVID-19 ARDS. However, COVID-19 ARDS is associated with a more protracted inflammatory respiratory failure compared to traditional ARDS. Therefore, a comprehensive molecular comparison of ARDS of different etiologies groups may pave the way for more specific clinical interventions. Methods and Findings: In this study, we compared COVID-19 ARDS (n=43) and bacterial sepsis-induced (non-COVID-19) ARDS (n=24) using multi-omic plasma profiles covering 663 metabolites, 1,051 lipids, and 266 proteins. To address both between- and within- ARDS group variabilities we followed two approaches. First, we identified 706 molecules differently abundant between the two ARDS etiologies, revealing more than 40 biological processes differently regulated between the two groups. From these processes, we assembled a cascade of therapeutically relevant pathways downstream of sphingosine metabolism. The analysis suggests a possible overactivation of arginine metabolism involved in long-term sequelae of ARDS and highlights the potential of JAK inhibitors to improve outcomes in bacterial sepsis-induced ARDS. The second part of our study involved the comparison of the two ARDS groups with respect to clinical manifestations. Using a data-driven multi-omic network, we identified signatures of acute kidney injury (AKI) and thrombocytosis within each ARDS group. The AKI-associated network implicated mitochondrial dysregulation which might lead to post-ARDS renal-sequalae. The thrombocytosis-associated network hinted at a synergy between prothrombotic processes, namely IL-17, MAPK, TNF signaling pathways, and cell adhesion molecules. Thus, we speculate that combination therapy targeting two or more of these processes may ameliorate thrombocytosis-mediated hypercoagulation. Conclusion: We present a first comprehensive molecular characterization of differences between two ARDS etiologies: COVID-19 and bacterial sepsis. Further investigation into the identified pathways will lead to a better understanding of the pathophysiological processes, potentially enabling novel therapeutic interventions.
</p>
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<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.05.16.22274587v2" target="_blank">Multi-omic comparative analysis of COVID-19 and bacterial sepsis-induced ARDS</a>
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<li><strong>SPARSEMODr: Rapid simulations of spatially explicit and stochastic models of infectious disease, including COVID-19</strong> -
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<p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom">
Building realistically complex models of infectious disease transmission that are relevant for informing public health is conceptually challenging and requires knowledge of coding architecture that can implement key modeling conventions. For example, many of the models built to understand COVID-19 dynamics have included stochasticity, transmission dynamics that change throughout the epidemic due to changes in host behavior or public health interventions, and spatial structures that account for important spatio-temporal heterogeneities. Here we introduce an R package, SPARSEMODr, that allows users to simulate disease models that are stochastic and spatially explicit, including a model for COVID-19 that was useful in the early phases of the epidemic. SPARSEMOD stands for <b>SPA</b>tial <b>R</b>esolution-<b>SE</b>nsitive <b>M</b>odels of <b>O</b>utbreak <b>D</b>ynamics, and our goal is to demonstrate particular conventions for rapidly simulating the dynamics of more complex, spatial models of infectious disease. In this report, we outline the features and workflows of our software package that allow for user-customized simulations. We believe the example models provided in our package will be useful in educational settings, as the coding conventions are adaptable, and will help new modelers to better understand important assumptions that were built into sophisticated COVID-19 models.
</p>
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<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.05.13.21256216v2" target="_blank">SPARSEMODr: Rapid simulations of spatially explicit and stochastic models of infectious disease, including COVID-19</a>
</div></li>
<li><strong>Comparison of antibody responses to SARS-CoV-2 variants in Australian children</strong> -
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There is limited understanding of antibody responses in children across different SARS-CoV-2 variants. As part of an ongoing household cohort study, we assessed the antibody response among unvaccinated children infected with Wuhan, Delta or Omicron variants, as well as vaccinated children with breakthrough Omicron infection, using a SARS-CoV-2 S1-specific IgG assay and surrogate virus neutralisation test (sVNT). Most children infected with Delta (100%, 35/35) or Omicron (81.3%, 13/16) variants seroconverted by one month following infection. In contrast, 37.5% (21/56) children infected with Wuhan seroconverted, as previously reported. However, Omicron-infected children (GMC 46.4 BAU/ml; sVNT % inhibition: 16.3%) mounted a significantly lower antibody response than Delta (435.5 BAU/mL, sVNT=76.9%) or Wuhan (359.0 BAU/mL, sVNT=74.0%). Vaccinated children with breakthrough Omicron infection mounted the highest antibody response (2856 BAU/mL, sVNT=96.5%). Our findings suggest that despite a high seroconversion rate, Omicron infection in children results in lower antibody levels and function compared with Wuhan or Delta infection or with vaccinated children with breakthrough Omicron infection. Our data have important implications for public health measures and vaccination strategies to protect children.
</p>
</div>
<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.08.12.22278705v1" target="_blank">Comparison of antibody responses to SARS-CoV-2 variants in Australian children</a>
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<li><strong>Longitudinal analysis of serum neutralization of SARS-CoV-2 Omicron BA.2, BA.4 and BA.5 in patients receiving monoclonal antibodies</strong> -
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The emergence of novel Omicron lineages, such as BA.5, may impact the therapeutic efficacy of anti-SARS-CoV-2 neutralizing monoclonal antibodies (mAbs). Here, we evaluated the neutralization and ADCC activity of 6 therapeutic mAbs against Delta, BA.2, BA.4 and BA.5 isolates. The Omicron sub-variants escaped most of the antibodies but remained sensitive to Bebtelovimab and Cilgavimab. Consistent with their shared spike sequence, BA.4 and BA.5 displayed identical neutralization profiles. Sotrovimab was the most efficient at eliciting ADCC. We also analyzed 121 sera from 40 immunocompromised individuals up to 6 months after infusion of 1200 mg of Ronapreve (Imdevimab + Casirivimab), and 300 or 600 mg of Evusheld (Cilgavimab + Tixagevimab). Sera from Ronapreve-treated individuals did not neutralize Omicron subvariants. Evusheld-treated individuals neutralized BA.2 and BA.5, but titers were reduced by 41- and 130-fold, respectively, compared to Delta. A longitudinal evaluation of sera from Evusheld-treated patients revealed a slow decay of mAb levels and neutralization. The decline was more rapid against BA.5. Our data shed light on the antiviral activities of therapeutic mAbs and the duration of effectiveness of Evusheld pre-exposure prophylaxis.
</p>
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<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.08.12.22278699v1" target="_blank">Longitudinal analysis of serum neutralization of SARS-CoV-2 Omicron BA.2, BA.4 and BA.5 in patients receiving monoclonal antibodies</a>
</div></li>
<li><strong>SARS-CoV-2 specific plasma cells acquire the phenotype of long-lived plasma cells in the human bone marrow</strong> -
<div>
Establishment of long-lived plasma cells (PC) in the bone marrow (BM) is important for the development of long-term specific humoral immunity. While SARS-CoV-2-specific, resting, affinity-matured, IgG-secreting plasma cells were described in human bone marrow approx. 6-7 months after infection or vaccination, the long-term durability of these PC remains unclear. We here show that approximately 20% of SARS-CoV-2-specific human BM plasma cells, including RBD-specific PC accommodate the phenotype of long-lived plasma cells, characterized by the lack of CD19 and/or CD45. This result provides evidence in support of the emergence of persistent SARS-CoV-2 specific plasma cells in humans sustaining the durable production of specific serum IgG protecting against severe courses of COVID-19.
</div>
<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2022.08.11.503574v1" target="_blank">SARS-CoV-2 specific plasma cells acquire the phenotype of long-lived plasma cells in the human bone marrow</a>
</div></li>
<li><strong>Memory B cell responses to Omicron subvariants after SARS-CoV-2 mRNA breakthrough infection</strong> -
<div>
Individuals that receive a 3rd mRNA vaccine dose show enhanced protection against severe COVID19 but little is known about the impact of breakthrough infections on memory responses. Here, we examine the memory antibodies that develop after a 3rd or 4th antigenic exposure by Delta or Omicron BA.1 infection, respectively. A 3rd exposure to antigen by Delta breakthrough increases the number of memory B cells that produce antibodies with comparable potency and breadth to a 3rd mRNA vaccine dose. A 4th antigenic exposure with Omicron BA.1 infection increased variant specific plasma antibody and memory B cell responses. However, the 4th exposure did not increase the overall frequency of memory B cells or their general potency or breadth compared to a 3rd mRNA vaccine dose. In conclusion, a 3rd antigenic exposure by Delta infection elicits strain-specific memory responses and increases in the overall potency and breadth of the memory B cells. In contrast, the effects of a 4th antigenic exposure with Omicron BA.1 is limited to increased strain specific memory with little effect on the potency or breadth of memory B cell antibodies. The results suggest that the effect of strain-specific boosting on memory B cell compartment may be limited.
</div>
<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2022.08.11.503601v1" target="_blank">Memory B cell responses to Omicron subvariants after SARS-CoV-2 mRNA breakthrough infection</a>
</div></li>
<li><strong>The impact of coronavirus (COVID-19) related public-health measures on training behaviours of individuals previously participating in resistance training: A cross-sectional survey study</strong> -
<div>
Introduction: Understanding the impact of lockdown upon RT, and how people adapted their RT behaviours, is expected to have implications for strategies to maintain engagement in positive health behaviours such as this during- restrictive pandemic-related public health measures. Further, doing so will provide a baseline for investigation of the long-term effects of these measures upon behaviours and perceptions and facilitate future follow-up study. Objectives: To determine how the onset of coronavirus (COVID-19), and the associated lockdown, affected resistance training (RT) behaviours, in addition to motivation, perceived effectiveness, enjoyment, and intent to continue, in those who regularly performed resistance training RT prior to the pandemic. Methods: We conducted an observational, cross-sectional study using online surveys in multiple languages (English, Danish, French, German, Italian, Portuguese, Slovakian, Swedish, and Japanese) distributed across social media platforms and through authors professional and personal networks. Adults (n = 5389 after data cleaning; median age = 31 years [interquartile range (IQR) = 25, 38]), who were previously engaged in RT prior to lockdown (median prior RT experience = 7 years [IQR = 4, 12]) participated. Outcomes were self-reported RT behaviours including: continuation of RT during lockdown, location of RT, purchase of specific equipment for RT, method of training (e.g. alone, supervision etc.), full-body or split routine, types of training, repetition ranges, exercise number, set volumes (per exercise and muscle group), weekly frequency of training, perception of effort, whether training was planned/recorded, time of day, and training goals. Secondary outcomes included motivation, perceived effectiveness, enjoyment, and intent to continue RT. Results: A majority of individuals (82.8%) maintained participation in some form of RT during- lockdown. Marginal probabilities from generalised linear models and generalised estimating equations of engaging in certain RT behaviours were largely similar from pre- to during- lockdown (particularly numbers of exercises, sets per exercise or muscle group, and weekly frequencies). There was reduced probability of training in privately owned gyms (~59% to ~7%) and increased probability of training at home (~18% to ~89%); greater probability of training using a full-body routine (~38% to ~51%); reduced probability of resistance machines (~66% to ~13%) and free weight use (~96% to ~81%), and increased probability of bodyweight training (~62% to ~82%); reduced probability of moderate repetition ranges (~62-82% to ~55-66%) and greater probability of higher repetition ranges (~27% to ~49%); and moderate reduction in the perception of effort experienced during- training (r = 0.31). Further, individuals were slightly less likely to plan or record training during- lockdown and many changed their training goals as a result of lockdown. Additionally, perceived effectiveness, enjoyment, and likelihood of continuing current training were all lower during- lockdown. Conclusions: Those engaged in RT prior to lockdown appeared mostly able to maintain these behaviours with only slight adaptations in both the location and types of training performed. However, people employed less effort, had lower motivation, and perceived training as less effective and enjoyable, reporting that their likelihood of continuing current training was similar or lower than pre- lockdown. These results have implications for strategies to maintain engagement in positive health behaviours such as RT during- restrictive pandemic-related public health measures.
</div>
<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://osf.io/preprints/sportrxiv/b8s7e/" target="_blank">The impact of coronavirus (COVID-19) related public-health measures on training behaviours of individuals previously participating in resistance training: A cross-sectional survey study</a>
</div></li>
<li><strong>The emergence of high-fitness variants accelerates the decay of genome heterogeneity in the coronavirus</strong> -
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Since the outbreak of the COVID-19 pandemic, the SARS-CoV-2 coronavirus accumulated an important amount of genome compositional heterogeneity through mutation and recombination, which can be summarized by means of a measure of Sequence Compositional Complexity (SCC). To test evolutionary trends that could inform us on the adaptive process of the virus to its human host, we compute SCC in high-quality coronavirus genomes from across the globe, covering the full span of the pandemic. By using phylogenetic ridge regression, we find trends for SCC in the short time-span of SARS-CoV-2 pandemic expansion. In early samples, we find no statistical support for any trend in SCC values over time, although the virus genome appears to evolve faster than Brownian Motion expectation. However, in samples taken after the emergence of Variants of Concern with higher transmissibility, and controlling for phylogenetic and sampling effects, we detect a declining trend for SCC and an increasing one for its absolute evolutionary rate. This means that the decay in SCC itself accelerated over time, and that increasing fitness of variant genomes lead to a reduction of their genome sequence heterogeneity. Therefore, our work shows that phylogenetic trends, typical of macroevolutionary time scales, can be also revealed on the shorter time spans typical of viral genomes.
</div>
<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.biorxiv.org/content/10.1101/2021.11.06.467547v2" target="_blank">The emergence of high-fitness variants accelerates the decay of genome heterogeneity in the coronavirus</a>
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<li><strong>Measuring and validating spatial accessibility to Covid-19 vaccination sites: a case study in England</strong> -
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The global Covid-19 pandemic has caused numerous deaths and illnesses and posed unprecedented social and economic challenges to many countries. One of the key strategies to contain the pandemic is mass vaccination. While it is essential to ensure safe and easy accessibility to Covid-19 vaccines for all communities, limited research has been carried out to understand and validate the spatial accessibility of these vaccines. This study addresses this gap by measuring and validating the spatial accessibility to Covid-19 vaccines with a particular focus on England, United Kingdom. More specifically, we compare three floating catchment area (FCA) methods with differing parameters for measuring the small-scale spatial accessibility to vaccination services. Then, we calibrate these accessibility measurements using a beta regression model and the reported vaccination uptake rates. The results show that the three-step FCA method with a distance parameter of 30 miles is the optimal model for measuring the spatial accessibility to Covid-19 vaccines. The findings provide an improved understanding of the spatial inequality of vaccine services. Further, the framework of calibrating spatial accessibility to vaccine services is generalisable to other types of healthcare services.
</div>
<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://osf.io/preprints/socarxiv/xvnps/" target="_blank">Measuring and validating spatial accessibility to Covid-19 vaccination sites: a case study in England</a>
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<li><strong>Resuming Social Contact After Months of Contact Restrictions: Social Traits Moderate Associations Between Changes in Social Contact and Well-Being</strong> -
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Humans possess a need for social contact. Satisfaction of this need benefits well-being, whereas deprivation is detrimental. However, how much contact people desire is not universal, and evidence is mixed on individual differences in the association between contact and well-being. This preregistered longitudinal study (N = 190) examined changes in social contact and well-being (life satisfaction, depressivity/anxiety) in Germany during pervasive contact restrictions, which exceed lab-based social deprivation. We analyzed how changes in personal and indirect contact and well-being during the first COVID-19 lockdown varied with social traits (e.g., affiliation, extraversion). Results showed that affiliation motive, need to be alone, and social anxiety moderated the resumption of personal contact under loosened restrictions as well as associated changes in life satisfaction and depressivity/anxiety.
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<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://psyarxiv.com/rmq8e/" target="_blank">Resuming Social Contact After Months of Contact Restrictions: Social Traits Moderate Associations Between Changes in Social Contact and Well-Being</a>
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<li><strong>COVID-19 convalescent plasma for the treatment of immunocompromised patients: a systematic review.</strong> -
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Immunosuppressed patients have increased risk for morbidity and mortality from COVID-19 because they less frequently mount antibody responses to vaccines and often cannot tolerate small-molecule antivirals. The Omicron variant of concern of SARS-CoV-2 has progressively defeated anti-Spike mAbs authorized so far, paving the way to a return to COVID-19 convalescent plasma (CCP) therapy. In this systematic review we performed a metanalysis of 8 controlled studies (totaling 469 treated patients and 1305 controls and including 3 randomized controlled trials), an individual patient data analysis of 125 case reports/series (totaling 265 patients), and a descriptive analysis of 13 uncontrolled large case series without individual patient data available (totaling 358 patients). The metanalysis of controlled studies showed a risk ratio for mortality of 0.63 (0.58 in randomized controlled trials) in treatment with CCP versus standard of care for immunosuppressed COVID-19 patients. On the basis of this evidence, we encourage initiation of high-titer CCP from vaccinees (hybrid plasma) in immunocompromised patients.
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<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.08.03.22278359v3" target="_blank">COVID-19 convalescent plasma for the treatment of immunocompromised patients: a systematic review.</a>
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<li>**HLA-A*01:01 allele vanishing in COVID-19 patients population associated with non-structural epitope abundance in CD8+ T-cell repertoire** -
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In mid-2021, the SARS-CoV-2 Delta variant caused the third wave of the COVID-19 pandemic in several countries worldwide. The pivotal studies were aimed at studying changes in the efficiency of neutralizing antibodies to the spike protein. However, much less attention was paid to the T-cell response and the presentation of virus peptides by MHC-I molecules. In this study, we compared the features of the HLA-I genotype in symptomatic patients with COVID-19 in the first and third waves of the pandemic. As a result, we could identify the vanishing of carriers of the HLA-A<em>01:01 allele in the third wave and demonstrate the unique properties of this allele. Thus, HLA-A</em>01:01-binding immunodominant epitopes are mostly derived from ORF1ab. A set of epitopes from ORF1ab was tested, and their high immunogenicity was confirmed. Moreover, analysis of the results of single-cell phenotyping of T-cells in recovered patients showed that the predominant phenotype in HLA-A*01:01 carriers is central memory T-cells. The predominance of T-lymphocytes of this phenotype may contribute to forming long-term T-cell immunity in carriers of this allele. Our results can be the basis for highly effective vaccines based on ORF1ab peptides.
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<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2022.07.05.22277214v2" target="_blank">HLA-A*01:01 allele vanishing in COVID-19 patients population associated with non-structural epitope abundance in CD8+ T-cell repertoire</a>
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<li><strong>Population disruption: estimating changes in population distribution in the UK during the COVID-19 pandemic</strong> -
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Mobility data have demonstrated major changes in human movement patterns in response to COVID-19 and associated interventions in many countries. This can involve sub-national redistribution, short-term relocations as well as international migration. In this paper, we combine detailed location data from Facebook measuring the location of approximately 6 million daily active Facebook users in 5km2 tiles in the UK with census-derived population estimates to measure population mobility and redistribution. We provide time-varying population estimates and assess spatial population changes with respect to population density and four key reference dates in 2020 (First lockdown, End of term, Beginning of term, Christmas). We also show how population estimates derived from the distribution of Facebook users vary compared to mid-2020 small area population estimates by the UK national statistics agencies. We estimate that between March 2020 and March 2021, the total population of the UK declined and we identify important spatial variations in this population change, showing that low-density areas have experienced lower population decreases than urban areas. We estimate that, for the top 10% highest population tiles, the population has decreased by 6.6%. Further, we provide evidence that geographic redistributions of population within the UK coincide with dates of non-pharmaceutical interventions including lockdowns and movement restrictions, as well as seasonal patterns of migration around holiday dates. The methods used in this study reveal significant changes in population distribution at high spatial and temporal resolutions that have not previously been quantified by available demographic surveys in the UK. We found early indicators of potential longer-term changes in the population distribution of the UK although it is not clear if these changes may persist after the COVID-19 pandemic.
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<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://www.medrxiv.org/content/10.1101/2021.06.22.21259336v2" target="_blank">Population disruption: estimating changes in population distribution in the UK during the COVID-19 pandemic</a>
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<li><strong>Investigating orthographic versus auditory cross-situational word learning with online and lab-based research</strong> -
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In recent years, cross-situational word learning (CSWL) paradigms have shown that novel words can be learned through implicit statistical learning. So far, CSWL studies using adult populations have focused on the presentation of spoken words (auditory information), however, words can also be learned through their written form (orthographic information). This study compares auditory and orthographic presentation of novel words with different degrees of phonological overlap using the CSWL paradigm. Additionally, we also present a lab-based and online-based approach to testing behavioural experiments. Due to the COVID-19 pandemic, lab testing was prematurely terminated, and testing was continued online using a newly created online testing protocol. Analyses first compared accuracy and response times across modalities, with our findings showing better and faster recognition performance for CSWL when novel words are presented through their written (orthographic condition) than through their spoken forms (auditory condition). As well, Bayesian modelling found that accuracy for the auditory condition was higher online compared to the lab-based experiment, whereas performance in the orthography condition was high in both experiments and generally outperformed the auditory condition. We discuss the implications of our findings for modality of presentation, as well as the benefits of our online testing protocol and its implementation for future research.
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<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://psyarxiv.com/tpn5e/" target="_blank">Investigating orthographic versus auditory cross-situational word learning with online and lab-based research</a>
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<li><strong>Partisan Selectivity in Blame Attribution: Evidence from the COVID-19 Pandemic</strong> -
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Crises and disasters give voters an opportunity to observe the incumbents response and reward or punish them for successes and failures. Yet even when voters perceive events similarly, they tend to attribute responsibility selectively, disproportionately crediting their party for positive developments and blaming opponents for negative developments. We examine selective attribution during the COVID-19 pandemic in the United States, reporting three key findings. First, selective attribution rapidly emerged during the first weeks of the pandemic, a time in which Democrats and Republicans were otherwise updating their perceptions and behavior in parallel. Second, selective attribution is caused by individual-level changes in perceptions of the pandemic. Third, existing research has been too quick to explain selective attribution in terms of partisan-motivated reasoning. We find stronger evidence for an explanation rooted in beliefs about presidential competence. This recasts selective attributions implications for democratic accountability.
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<div class="article-link article-html-link">
🖺 Full Text HTML: <a href="https://osf.io/preprints/socarxiv/t8xar/" target="_blank">Partisan Selectivity in Blame Attribution: Evidence from the COVID-19 Pandemic</a>
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<h1 data-aos="fade-right" id="from-clinical-trials">From Clinical Trials</h1>
<ul>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>A Study to Measure the Amount of Study Medicine in Blood in Adult Participants With COVID-19 and Severe Kidney Disease</strong> - <b>Condition</b>:   COVID-19<br/><b>Intervention</b>:   Drug: PF-07321332 (nirmatrelvir)/ritonavir<br/><b>Sponsor</b>:   Pfizer<br/><b>Not yet recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Cognitive Rehabilitation in Post-COVID-19 Condition</strong> - <b>Condition</b>:   COVID-19<br/><b>Intervention</b>:   Behavioral: Goal Management Training (GMT)<br/><b>Sponsors</b>:   Lovisenberg Diakonale Hospital;   University of Oslo;   Icahn School of Medicine at Mount Sinai;   University of Toronto;   UiT The Arctic University of Norway;   Oslo University Hospital<br/><b>Not yet recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>A Study of Booster Immunization With COVID-19 Vaccine,Inactivated Co -Administration With Influenza Vaccine and Pneumococcal Polysaccharide Vaccine</strong> - <b>Condition</b>:   COVID-19<br/><b>Interventions</b>:   Biological: Adult group in immunogenicity and safety study of combined immunization;   Biological: Elderly group in immunogenicity and safety study of combined immunization;   Biological: Adult group in safety observation study of combined immunization;   Biological: Elderly group in safety observation study of combined immunization<br/><b>Sponsor</b>:   Sinovac Biotech Co., Ltd<br/><b>Completed</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>EFFECTS OF INSPIRATORY MUSCLE TRAINING IN POST-COVID-19 PATIENTS</strong> - <b>Condition</b>:   Covid19<br/><b>Interventions</b>:   Other: TREATMENT GROUP (TG);   Other: CONTROL GROUP (CG)<br/><b>Sponsor</b>:   University Vila Velha<br/><b>Completed</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Long-term Effects of SARS-CoV-2 on the Central Nervous System and One-year Follow-up of “Long COVID-19” Patients</strong> - <b>Condition</b>:   Long Covid19<br/><b>Intervention</b>:   Diagnostic Test: Perfusion brain scintigraphy imaging<br/><b>Sponsor</b>:   Brugmann University Hospital<br/><b>Recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Temelimab as a Disease Modifying Therapy in Patients With Neuropsychiatric Symptoms in Post-COVID 19 or PASC Syndrome</strong> - <b>Condition</b>:   Post-COVID-19 Syndrome<br/><b>Interventions</b>:   Drug: Temelimab 54mg/kg;   Drug: Placebo<br/><b>Sponsor</b>:   GeNeuro SA<br/><b>Not yet recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Active Cycle Of Breathing Technique Verses Breathing Exercises In Post ICU COVID-19 Patients</strong> - <b>Condition</b>:   Post Covid-19 Patients<br/><b>Interventions</b>:   Other: Chest physiotherapy with breathing exercises and ACBT;   Other: Chest physiotherapy with breathing exercises<br/><b>Sponsor</b>:   Riphah International University<br/><b>Recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Addressing Vaccine Hesitancy and Increasing COVID-19 Vaccine Uptake Among African American Young Adults in the South</strong> - <b>Conditions</b>:   COVID-19;   Vaccine Uptake<br/><b>Intervention</b>:   Behavioral: Tough Talks COVID<br/><b>Sponsors</b>:   University of North Carolina, Chapel Hill;   University of Alabama at Birmingham;   National Institute on Minority Health and Health Disparities (NIMHD)<br/><b>Not yet recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>rSIFN-co Among Healthy Subjects and Subjects With Mild or Asymptomatic COVID-19</strong> - <b>Conditions</b>:   COVID-19;   SARS-CoV-2<br/><b>Interventions</b>:   Drug: rSIFN-co Nasal Spray;   Drug: Placebo Nasal Spray<br/><b>Sponsor</b>:   Sichuan Huiyang Life Science and Technology Corporation<br/><b>Recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Evaluation of Safety and Immunogenicity of the Recombinant ZR202-CoV and ZR202a-CoV Vaccines in Adults.</strong> - <b>Conditions</b>:   SARS-CoV-2 Infection;   COVID-19<br/><b>Interventions</b>:   Biological: ZR202-CoV;   Biological: ZR202a-CoV;   Biological: Comirnaty®<br/><b>Sponsor</b>:   Shanghai Zerun Biotechnology Co.,Ltd<br/><b>Recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>The Effect of Pilates on Biopsychosocial Characteristics in the Covid-19 Pandemic</strong> - <b>Conditions</b>:   COVID-19;   Healthy;   Sedentary;   Exercise;   Pilates<br/><b>Interventions</b>:   Behavioral: Sedantary;   Behavioral: Exercise therapy<br/><b>Sponsor</b>:   Medipol University<br/><b>Recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>This Trial is a Clinical Performance Validation Study That Will Evaluate the Clinical Agreement of the Sky Medical™ Rapid Antigen Test Comparing the Antigen Rapid Test to RT-PCR</strong> - <b>Conditions</b>:   COVID-19;   Sars-CoV-2 Infection<br/><b>Intervention</b>:   Diagnostic Test: Sky Medical™ Rapid Antigen Test<br/><b>Sponsor</b>:   Sky Medical Supplies &amp; Equipments, LLC<br/><b>Recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>The Effect Of Distraction Methods On Fear And Anxiety In Children Before The Covid 19 Test</strong> - <b>Conditions</b>:   Anxiety;   Fear<br/><b>Interventions</b>:   Behavioral: The Kaleidescope;   Behavioral: The visual illusion cards<br/><b>Sponsor</b>:   Ondokuz Mayıs University<br/><b>Completed</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Cardiovascular Function and Physical Activity in COVID-19</strong> - <b>Condition</b>:   Coronavirus 2019<br/><b>Intervention</b>:   Behavioral: Active-at-home-HF<br/><b>Sponsor</b>:   Coventry University<br/><b>Recruiting</b></p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>The Effect Of Tele-Exercise Program Applied To Children With Cystic Fibrosis on Quality of Life in Covid 19 Pandemic</strong> - <b>Conditions</b>:   Cystic Fibrosis;   Exercise Addiction;   Nursing Caries;   Quality of Life;   Exercise Adherence<br/><b>Interventions</b>:   Behavioral: Tele-Exercise Program;   Behavioral: Just observation<br/><b>Sponsor</b>:   Ondokuz Mayıs University<br/><b>Completed</b></p></li>
</ul>
<h1 data-aos="fade-right" id="from-pubmed">From PubMed</h1>
<ul>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Proteomic analysis and identification reveal the anti-inflammatory mechanism of clofazimine on lipopolysaccharide-induced acute lung injury in mice</strong> - CONCLUSION: This study can provide significant insight into the proteomics-guided pharmacological mechanism study of CFZ and suggest potential therapeutic strategies for infectious disease.</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Modeling SARS-CoV-2 and influenza infections and antiviral treatments in human lung epithelial tissue equivalents</strong> - There is a critical need for physiologically relevant, robust, and ready-to-use in vitro cellular assay platforms to rapidly model the infectivity of emerging viruses and develop new antiviral treatments. Here we describe the cellular complexity of human alveolar and tracheobronchial air liquid interface (ALI) tissue models during SARS-CoV-2 and influenza A virus (IAV) infections. Our results showed that both SARS-CoV-2 and IAV effectively infect these ALI tissues, with SARS-CoV-2 exhibiting a…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Structure-Based Identification of Naphthoquinones and Derivatives as Novel Inhibitors of Main Protease M<sup>pro</sup> and Papain-like Protease PL<sup>pro</sup> of SARS-CoV-2</strong> - The worldwide COVID-19 pandemic caused by the coronavirus SARS-CoV-2 urgently demands novel direct antiviral treatments. The main protease (M^(pro)) and papain-like protease (PL^(pro)) are attractive drug targets among coronaviruses due to their essential role in processing the polyproteins translated from the viral RNA. In this study, we virtually screened 688 naphthoquinoidal compounds and derivatives against M^(pro) of SARS-CoV-2. Twenty-four derivatives were selected and evaluated in…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>SARS-CoV-2 infection and C1-esterase inhibitor: Camouflage pattern and new perspective</strong> - In Covid-19, the pathological effect of SARS-CoV-2 infection is arbitrated through direct viral toxicity, unusual immune response, endothelial dysfunction, deregulated renin-angiotensin system [RAS], and thrombo-inflammation leading to acute lung injury [ALI], with a succession of acute respiratory distress syndrome [ARDS] in critical conditions. C1 esterase inhibitor [C1INH] is a protease inhibitor that inhibits the spontaneous activation of complement and contact systems and kinin pathway,…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>The effect of reparixin on survival in patients at high risk for in-hospital mortality: a meta-analysis of randomized trials</strong> - CONCLUSION: Our meta-analysis of randomized trials suggests that short-term inhibition of CXCL8 activity improved survival in patients at high risk for in-hospital mortality without increasing the risk of infection.</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Phytochemical Discrimination, Biological Activity and Molecular Docking of Water-Soluble Inhibitors from <em>Saussurea costus</em> Herb against Main Protease of SARS-CoV-2</strong> - Siddha medicine is one of the oldest medical systems in the world and is believed to have originated more than 10,000 years ago and is prevalent across ancient Tamil land. It is undeniable that inhibitor preferences rise with increasing solubility in water due to the considerations pertaining to the bioavailability and the ease of which unabsorbed residues can be disposed of. In this study, we showed the phytochemical discrimination of Saussurea costus extracted with water at room temperature as…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Antiviral and Antibacterial Effect of Honey Enriched with <em>Rubus</em> spp. as a Functional Food with Enhanced Antioxidant Properties</strong> - The aim of this study was to investigate the effect of blackberry and raspberry fruits (1 and 4%) and leaves (0.5 and 1%) on the biological activities of rape honey. Honey and plant material extracts were analyzed regarding total phenolic, flavonoid, anthocyanin contents, HPTLC and HPLC polyphenol profiles, as well as antioxidant activity. The antiviral potential was analyzed against bacteriophage phi 6-a coronavirus surrogate-whereas antimicrobial was tested against S. aureus and E. coli….</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Actions of Novel Angiotensin Receptor Blocking Drugs, Bisartans, Relevant for COVID-19 Therapy: Biased Agonism at Angiotensin Receptors and the Beneficial Effects of Neprilysin in the Renin Angiotensin System</strong> - Angiotensin receptor blockers (ARBs) used in the treatment of hypertension and potentially in SARS-CoV-2 infection exhibit inverse agonist effects at angiotensin AR1 receptors, suggesting the receptor may have evolved to accommodate naturally occurring angiotensin antipeptides. Screening of the human genome has identified a peptide (EGVYVHPV) encoded by mRNA, complementary to that encoding ANG II itself, which is an inverse agonist. Thus, opposite strands of DNA encode peptides with opposite…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Textiles Functionalized with Copper Oxides: A Sustainable Option for Prevention of COVID-19</strong> - COVID-19 is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and healthcare-associated infections (HAIs) represent severe problems in health centers and public areas. Polyester/cotton (PES/CO) blend fabrics have been functionalized with copper oxides on an industrial scale. For functionalization, the impregnation dyeing technique was applied. The functionalized samples were tested virologically against SARS-CoV-2 and human coronavirus (229E) according to ISO 18184-2019 and…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Isolation and In Silico Inhibitory Potential against SARS-CoV-2 RNA Polymerase of the Rare Kaempferol 3-<em>O</em>-(6″-<em>O</em>-acetyl)-Glucoside from <em>Calligonum tetrapterum</em></strong> - The phytochemical constituents of Calligonum tetrapterum Jaub. &amp; Spach (Family Polygonaceae) were studied for the first time. The study resulted in the isolation of the rare flavonol glycoside, kaempferol 3-O-(6″-O-acetyl)-glucoside,(K3G-A). The potential inhibitive activity of K3G-A toward SARS-CoV-2 was investigated utilizing several in silico approaches. First, molecular fingerprints and structural similarity experiments were carried out for K3G-A against nine co-crystallized ligands of nine…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>A Systematic Study on the Optimal Nucleotide Analogue Concentration and Rate Limiting Nucleotide of the SARS-CoV-2 RNA-Dependent RNA Polymerase</strong> - The current COVID-19 pandemic has highlighted the necessity of more efficient antiviral compounds. The antiviral efficacy of adenosine-based analogs, the main repurposed drugs for SARS-CoV-2 RNA-dependent RNA polymerase (RdRp) inhibition, is mainly assessed through in vitro or cell-free polymerization assays, under arbitrary conditions that do not reflect the physiological environment. We show that SARS-CoV-2 RdRp inhibition efficiency of remdesivir and cordycepin, two common adenosine analogs,…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Serum of Post-COVID-19 Syndrome Patients with or without ME/CFS Differentially Affects Endothelial Cell Function In Vitro</strong> - A proportion of COVID-19 reconvalescent patients develop post-COVID-19 syndrome (PCS) including a subgroup fulfilling diagnostic criteria of Myalgic encephalomyelitis/Chronic Fatigue Syndrome (PCS/CFS). Recently, endothelial dysfunction (ED) has been demonstrated in these patients, but the mechanisms remain elusive. Therefore, we investigated the effects of patients sera on endothelia cells (ECs) in vitro. PCS (n = 17), PCS/CFS (n = 13), and healthy controls (HC, n = 14) were screened for serum…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Innate Immune Response and Inflammasome Activation During SARS-CoV-2 Infection</strong> - The novel coronavirus SARS-CoV-2, responsible for the COVID-19 outbreak, has become a pandemic threatening millions of lives worldwide. Recently, several vaccine candidates and drugs have shown promising effects in preventing or treating COVID-19, but due to the development of mutant strains through rapid viral evolution, urgent investigations are warranted in order to develop preventive measures and further improve current vaccine candidates. Positive-sense-single-stranded RNA viruses comprise…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Antiviral activity of natural phenolic compounds in complex at an allosteric site of SARS-CoV-2 papain-like protease</strong> - SARS-CoV-2 papain-like protease (PLpro) covers multiple functions. Beside the cysteine-protease activity, facilitating cleavage of the viral polypeptide chain, PLpro has the additional and vital function of removing ubiquitin and ISG15 (Interferon-stimulated gene 15) from host-cell proteins to support coronaviruses in evading the hosts innate immune responses. We identified three phenolic compounds bound to PLpro, preventing essential molecular interactions to ISG15 by screening a natural…</p></li>
<li data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><p data-aos="fade-left" data-aos-anchor-placement="bottom-bottom"><strong>Consensus statement on blocking interleukin-6 receptor and interleukin-6 in inflammatory conditions: an update</strong> - CONCLUSIONS: The document provides a comprehensive consensus on the use of IL-6 inhibition to treat inflammatory disorders to inform healthcare professionals (including researchers), patients, administrators and payers.</p></li>
</ul>
<h1 data-aos="fade-right" id="from-patent-search">From Patent Search</h1>
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