52 research outputs found
Cortisol regulates the paracrine action of macrophages by inducing vasoactive gene expression in endometrial cells
The human endometrium undergoes inflammation and tissue repair during menstruation. We hypothesized that the local availability of bioactive glucocorticoids plays an important role in immune cell–vascular cell interactions in endometrium during tissue repair at menstruation, acting either directly or indirectly via tissue resident macrophages. We sought to determine whether endometrial macrophages are direct targets for glucocorticoids; whether cortisol-treated macrophages have a paracrine effect on angiogenic gene expression by endometrial endothelial cells; and whether endometrial macrophages express angiogenic factors. Human endometrium (n = 41) was collected with ethical approval and subject consent. Donor peripheral blood monocyte-derived macrophages were treated with estradiol, progesterone, or cortisol. The effect of peripheral blood monocyte-derived macrophage secretory products on the expression of angiogenic RNAs by endothelial cells was examined. Immunofluorescence was used to examine localization in macrophages and other endometrial cell types across the menstrual cycle. Endometrial macrophages express the glucocorticoid receptor. In vitro culture with supernatants from cortisol-treated peripheral blood monocyte-derived macrophages resulted in altered endometrial endothelial cell expression of the angiogenic genes, CXCL2, CXCL8, CTGF, and VEGFC. These data highlight the importance of local cortisol in regulating paracrine actions of macrophages in the endometrium. CXCL2 and CXCL8 were detected in endometrial macrophages in situ. The expression of these factors was highest in the endometrium during the menstrual phase, consistent with these factors having a role in endometrial repair. Our data have indicated that activation of macrophages with glucocorticoids might have paracrine effects by increasing angiogenic factor expression by endometrial endothelial cells. This might reflect possible roles for macrophages in endometrial repair of the vascular bed after menstruation
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Gaming Collection Census: A current picture of Gaming in Libraries
Presentation for Games in Libraries, University of Wisconsin-Eau Claire 2019. This presentation provides a snapshot of the previous census and discusses about the current state of gaming in libraries including types of games and equipment, online digital games, licensing, staffing budgets issues. Based on the analysis and synthesis of the survey feedback, the presentation speculates about common issues and what the future bring
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Escape to the Library: Building a Library Learning Escape Room for Incoming Students
This presentation details the design of an escape room as part of the "First Flight" orientation for incoming freshmen at the University of North Texas
Extraversion in sport: a scoping review
© 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group. This scoping review sought to identify every published study on extraversion in sport. A narrative synthesis was used to interpret findings across research themes. The evidence was graded with validated measures that use quantitative criteria to establish the quality of report writing and confidence in the findings reported. A comprehensive electronic and manual literature search identified 151 published articles (155 independent studies). The research was deductively coded into eight research themes within four causal hypotheses. Study quality varied according to publication date (r = –.52) and the evidence supporting major research questions was graded as ‘low’ or ‘very low’ in most instances. The most convincing evidence indicated that athletes are more extraverted than non-athletes (k = 58), team-sport athletes are more extraverted than individual-sport athletes (k = 18), female athletes are more extraverted than male athletes (k = 24), athletes scoring higher on extraversion use more adaptive coping strategies (k = 9), have stronger coach-athlete relationships (k = 6), and tend to be more successful (k = 33). Insufficient evidence was available to draw conclusions regarding playing position, group processes, or team success. Further research on coaches and officials, and using longitudinal and experimental research designs, are recommended
Sugaring the pill: Assessing rhetorical strategies designed to minimize defensive reactions to group criticism
People are considerably more defensive in the face of group criticism when the criticism comes from an out-group rather than an in-group member (the intergroup sensitivity effect). We tested three strategies that out-group critics can use to reduce this heightened defensiveness. In all studies, Australians received criticism of their country either from another Australian or from a foreigner. In Experiment 1, critics who attached praise to the criticism were liked more and agreed with more than were those who did not. In Experiment 2, out-group critics were liked more and aroused less negativity when they acknowledged that the problems they identified in the target group were shared also by their own in-group. In both experiments, the ameliorative effects of praise and acknowledgment were fully mediated by attributions of constructiveness. Experiment 3 tested the strategy of spotlighting; that is, of putting on the record that you intend your comments to apply to just a portion of the group rather than to the whole group. This strategy-which did not directly address the attributional issues that are presumed to underpin the intergroup sensitivity effect-proved ineffective. Practical and theoretical implications for intergroup communication are discussed
Utility of social media and crowd-intelligence data for pharmacovigilance: a scoping review
Abstract Background A scoping review to characterize the literature on the use of conversations in social media as a potential source of data for detecting adverse events (AEs) related to health products. Methods Our specific research questions were (1) What social media listening platforms exist to detect adverse events related to health products, and what are their capabilities and characteristics? (2) What is the validity and reliability of data from social media for detecting these adverse events? MEDLINE, EMBASE, Cochrane Library, and relevant websites were searched from inception to May 2016. Any type of document (e.g., manuscripts, reports) that described the use of social media data for detecting health product AEs was included. Two reviewers independently screened citations and full-texts, and one reviewer and one verifier performed data abstraction. Descriptive synthesis was conducted. Results After screening 3631 citations and 321 full-texts, 70 unique documents with 7 companion reports available from 2001 to 2016 were included. Forty-six documents (66%) described an automated or semi-automated information extraction system to detect health product AEs from social media conversations (in the developmental phase). Seven pre-existing information extraction systems to mine social media data were identified in eight documents. Nineteen documents compared AEs reported in social media data with validated data and found consistent AE discovery in all except two documents. None of the documents reported the validity and reliability of the overall system, but some reported on the performance of individual steps in processing the data. The validity and reliability results were found for the following steps in the data processing pipeline: data de-identification (n = 1), concept identification (n = 3), concept normalization (n = 2), and relation extraction (n = 8). The methods varied widely, and some approaches yielded better results than others. Conclusions Our results suggest that the use of social media conversations for pharmacovigilance is in its infancy. Although social media data has the potential to supplement data from regulatory agency databases; is able to capture less frequently reported AEs; and can identify AEs earlier than official alerts or regulatory changes, the utility and validity of the data source remains under-studied. Trial registration Open Science Framework (https://osf.io/kv9hu/)
Raising the Stakes: Loss of Efflux Pump Regulation Decreases Meropenem Susceptibility in Burkholderia pseudomallei.
Burkholderia pseudomallei, the causative agent of the high-mortality disease melioidosis, is a gram-negative bacterium that is naturally resistant to many antibiotics. There is no vaccine for melioidosis, and effective eradication is reliant on biphasic and prolonged antibiotic administration. The carbapenem drug meropenem is the current gold standard option for treating severe melioidosis. Intrinsic B. pseudomallei resistance toward meropenem has not yet been documented; however, resistance could conceivably develop over the course of infection, leading to prolonged sepsis and treatment failure. We examined our 30-year clinical collection of melioidosis cases to identify B. pseudomallei isolates with reduced meropenem susceptibility. Isolates were subjected to minimum inhibitory concentration (MIC) testing toward meropenem. Paired isolates from patients who had evolved decreased susceptibility were subjected to whole-genome sequencing. Select agent-compliant genetic manipulation was carried out to confirm the molecular mechanisms conferring resistance. We identified 11 melioidosis cases where B. pseudomallei isolates developed decreased susceptibility toward meropenem during treatment, including 2 cases not treated with this antibiotic. Meropenem MICs increased from 0.5-0.75 ?g/mL to 3-8 ?g/mL. Comparative genomics identified multiple mutations affecting multidrug resistance-nodulation-division (RND) efflux pump regulators, with concomitant overexpression of their corresponding pumps. All cases were refractory to treatment despite aggressive, targeted therapy, and 2 were associated with a fatal outcome. This study confirms the role of RND efflux pumps in decreased meropenem susceptibility in B. pseudomallei. These findings have important ramifications for the diagnosis, treatment, and management of life-threatening melioidosis cases
Lessons from Studies to Evaluate an Online 24-Hour Recall for Use with Children and Adults in Canada
With technological innovation, comprehensive dietary intake data can be collected in a wide range of studies and settings. The Automated Self-Administered 24-hour (ASA24) Dietary Assessment Tool is a web-based system that guides respondents through 24-h recalls. The purpose of this paper is to describe lessons learned from five studies that assessed the feasibility and validity of ASA24 for capturing recall data among several population subgroups in Canada. These studies were conducted within a childcare setting (preschool children with reporting by parents), in public schools (children in grades 5–8; aged 10–13 years), and with community-based samples drawn from existing cohorts of adults and older adults. Themes emerged across studies regarding receptivity to completing ASA24, user experiences with the interface, and practical considerations for different populations. Overall, we found high acceptance of ASA24 among these diverse samples. However, the ASA24 interface was not intuitive for some participants, particularly young children and older adults. As well, technological challenges were encountered. These observations underscore the importance of piloting protocols using online tools, as well as consideration of the potential need for tailored resources to support study participants. Lessons gleaned can inform the effective use of technology-enabled dietary assessment tools in research
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