40 research outputs found

    Centering Community Voices in our Research

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    What is Community Engaged Research? Community engaged research (CER) is the process of working collaboratively with groups of people affiliated by geographic proximity, special interests, or similar situations across the lifecycle of research.https://knowledgeconnection.mainehealth.org/lambrew-retreat-2022/1040/thumbnail.jp

    Potential of vascular endothelial growth factor as a biomarker of coronary artery disease in subjects undergoing CABG surgery

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    Introduction: • Coronary artery disease (CAD) causes local hypoxia due to reduced blood flow • Hypoxic conditions are known to induce vascular endothelial growth factor (VEGF) production, a key contributor to angiogenesis • The purpose of this study was to determine the potential of VEGF as a marker of myocardial stress in subjects with CAD undergoing coronary artery bypass grafting (CABG) surger

    Non-Additive Effects of Genotypic Diversity Increase Floral Abundance and Abundance of Floral Visitors

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    Background: In the emerging field of community and ecosystem genetics, genetic variation and diversity in dominant plant species have been shown to play fundamental roles in maintaining biodiversity and ecosystem function. However, the importance of intraspecific genetic variation and diversity to floral abundance and pollinator visitation has received little attention. Methodology/Principal Findings: Using an experimental common garden that manipulated genotypic diversity (the number of distinct genotypes per plot) of Solidago altissima, we document that genotypic diversity of a dominant plant can indirectly influence flower visitor abundance. Across two years, we found that 1) plant genotype explained 45 % and 92 % of the variation in flower visitor abundance in 2007 and 2008, respectively; and 2) plant genotypic diversity had a positive and non-additive effect on floral abundance and the abundance of flower visitors, as plots established with multiple genotypes produced 25 % more flowers and received 45 % more flower visits than would be expected under an additive model. Conclusions/Significance: These results provide evidence that declines in genotypic diversity may be an important but little considered factor for understanding plant-pollinator dynamics, with implications for the global decline in pollinators due t

    Development and Validation of a Risk Score for Chronic Kidney Disease in HIV Infection Using Prospective Cohort Data from the D:A:D Study

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    Ristola M. on työryhmien DAD Study Grp ; Royal Free Hosp Clin Cohort ; INSIGHT Study Grp ; SMART Study Grp ; ESPRIT Study Grp jäsen.Background Chronic kidney disease (CKD) is a major health issue for HIV-positive individuals, associated with increased morbidity and mortality. Development and implementation of a risk score model for CKD would allow comparison of the risks and benefits of adding potentially nephrotoxic antiretrovirals to a treatment regimen and would identify those at greatest risk of CKD. The aims of this study were to develop a simple, externally validated, and widely applicable long-term risk score model for CKD in HIV-positive individuals that can guide decision making in clinical practice. Methods and Findings A total of 17,954 HIV-positive individuals from the Data Collection on Adverse Events of Anti-HIV Drugs (D:A:D) study with >= 3 estimated glomerular filtration rate (eGFR) values after 1 January 2004 were included. Baseline was defined as the first eGFR > 60 ml/min/1.73 m2 after 1 January 2004; individuals with exposure to tenofovir, atazanavir, atazanavir/ritonavir, lopinavir/ritonavir, other boosted protease inhibitors before baseline were excluded. CKD was defined as confirmed (>3 mo apart) eGFR In the D:A:D study, 641 individuals developed CKD during 103,185 person-years of follow-up (PYFU; incidence 6.2/1,000 PYFU, 95% CI 5.7-6.7; median follow-up 6.1 y, range 0.3-9.1 y). Older age, intravenous drug use, hepatitis C coinfection, lower baseline eGFR, female gender, lower CD4 count nadir, hypertension, diabetes, and cardiovascular disease (CVD) predicted CKD. The adjusted incidence rate ratios of these nine categorical variables were scaled and summed to create the risk score. The median risk score at baseline was -2 (interquartile range -4 to 2). There was a 1: 393 chance of developing CKD in the next 5 y in the low risk group (risk score = 5, 505 events), respectively. Number needed to harm (NNTH) at 5 y when starting unboosted atazanavir or lopinavir/ritonavir among those with a low risk score was 1,702 (95% CI 1,166-3,367); NNTH was 202 (95% CI 159-278) and 21 (95% CI 19-23), respectively, for those with a medium and high risk score. NNTH was 739 (95% CI 506-1462), 88 (95% CI 69-121), and 9 (95% CI 8-10) for those with a low, medium, and high risk score, respectively, starting tenofovir, atazanavir/ritonavir, or another boosted protease inhibitor. The Royal Free Hospital Clinic Cohort included 2,548 individuals, of whom 94 individuals developed CKD (3.7%) during 18,376 PYFU (median follow-up 7.4 y, range 0.3-12.7 y). Of 2,013 individuals included from the SMART/ESPRIT control arms, 32 individuals developed CKD (1.6%) during 8,452 PYFU (median follow-up 4.1 y, range 0.6-8.1 y). External validation showed that the risk score predicted well in these cohorts. Limitations of this study included limited data on race and no information on proteinuria. Conclusions Both traditional and HIV-related risk factors were predictive of CKD. These factors were used to develop a risk score for CKD in HIV infection, externally validated, that has direct clinical relevance for patients and clinicians to weigh the benefits of certain antiretrovirals against the risk of CKD and to identify those at greatest risk of CKD.Peer reviewe

    Validation of the French version of the student engagement instrument

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    The purpose of this study is to explore the psychometric properties of the French version of the Student Engagement Instrument in order to perform a cross-cultural validation of its factorial structure, based on a sample of 919 French Canadian high school students. Results confirm the reliability of the instrument with good internal consistency (Cronbach’s alpha between .76 and .84). Confirmatory factor analysis shows the validity of the six scales composing the French version of the instrument. Results are significant as there were no standardized instruments with which to evaluate student engagement in high school students in French. Student engagement represents an important intervention target towards improving student achievement and preventing dropout.Le but de cette étude est d’explorer les propriétés psychométriques de la version française de l’instrument de Mesure d’engagement des élèves afin de réaliser une validation interculturelle de sa structure factorielle, basée sur un échantillon de 919 élèves francophones du secondaire au Canada. Les résultats confirment la fiabilité de l’instrument avec une bonne cohérence interne (alpha de Cronbach entre .76 et .84). L’analyse factorielle confirmatrice démontre la validité des six échelles composant la version française de l’instrument. Les résultats sont significatifs étant donné l’absence d’instruments normalisés pour évaluer l’engagement des élèves du secondaire en français. L’engagement des élèves représente une cible d’intervention importante pour améliorer la réussite scolaire et prévenir l’abandon scolaire

    Novel biological therapies targeting heart failure: myocardial rejuvenation.

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    Recovery of ventricular function occurs in a subset of patients with advanced heart failure treated with medical and/or mechanical therapy. Finding strategies that induce ventricular recovery through induction of repair, regeneration, or rejuvenation is a long-sought goal of research programs. Cell-based strategies, use of recombinant growth and survival factors, and gene delivery are under investigation. In this brief article we highlight a few of the biological approaches in development to treat heart failure

    Upper extremity necrotizing fasciitis in a Covid-19 patient

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    The novel COVID-19 virus has resulted in an immense burden in healthcare throughout the world. In addition to respiratory complications, COVID-19 has been associated with hypercoagulability and ischemic changes. We report a case of a patient with COVID-19 who presented with a rapidly progressing necrotizing fasciitis treated in our institution
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