131 research outputs found

    Conference Program

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    Cigarette smoking disparities among sexual minority cancer survivors

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    AbstractObjectiveSexual minority (i.e., lesbian, gay, and bisexual) adults smoke cigarettes at higher rates than heterosexual adults. Smoking after receiving a cancer diagnosis is a major health concern, yet risk of continued smoking among sexual minority cancer survivors is as yet unknown. The current study examines current smoking among sexual minority vs. heterosexual adult cancer survivors.MethodData drawn from the 2010 Behavioral Risk Factor Surveillance System survey in five states (Alaska, California, Massachusetts, New Mexico, and Wisconsin) included items about sexual orientation, cancer diagnosis, and tobacco use. The analytic sample included 124 sexual minority and 248 propensity score matched heterosexual adult cancer survivors.ResultsBivariate analysis showed that sexual minority cancer survivors had twice the odds of current smoking as their heterosexual counterparts (OR=2.03, 95%CI:1.09–3.80). In exploratory analyses stratified by sex, sexual minority disparities in prevalence of smoking post-cancer showed a trend toward significance among females, not males.ConclusionThe current study offers preliminary evidence that sexual minority status is one variable among many that must be taken into account when assessing health behaviors post-cancer diagnosis. Future research should identify mechanisms leading from sexual minority status to increased rates of smoking and develop tailored smoking cessation interventions

    Production of recombinant vesicular stomatitis virus-based vectors by tangential flow depth filtration

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    ABSTRACT: Cell culture-based production of vector-based vaccines and virotherapeutics is of increasing interest. The vectors used not only retain their ability to infect cells but also induce robust immune responses. Using two recombinant vesicular stomatitis virus (rVSV)-based constructs, we performed a proof-of-concept study regarding an integrated closed single-use perfusion system that allows continuous virus harvesting and clarification. Using suspension BHK-21 cells and a fusogenic oncolytic hybrid of vesicular stomatitis virus and Newcastle disease virus (rVSV-NDV), a modified alternating tangential flow device (mATF) or tangential flow depth filtration (TFDF) systems were used for cell retention. As the hollow fibers of the former are characterized by a large internal lumen (0.75 mm; pore size 0.65 ÎŒm), membrane blocking by the multi-nucleated syncytia formed during infection could be prevented. However, virus particles were completely retained. In contrast, the TFDF filter unit (lumen 3.15 mm, pore size 2–5 ÎŒm) allowed not only to achieve high viable cell concentrations (VCC, 16.4–20.6×10⁶ cells/mL) but also continuous vector harvesting and clarification. Compared to an optimized batch process, 11-fold higher infectious virus titers were obtained in the clarified permeate (maximum 7.5×10âč TCID₅₀/mL). Using HEK293-SF cells and a rVSV vector expressing a green fluorescent protein, perfusion cultivations resulted in a maximum VCC of 11.3×10₆ cells/mL and infectious virus titers up to 7.1×10Âč⁰ TCID₅₀/mL in the permeate. Not only continuous harvesting but also clarification was possible. Although the cell-specific virus yield decreased relative to a batch process established as a control, an increased space-time yield was obtained

    Carboplatin (CBDCA), iproplatin (CHIP), and high dose cisplatin in hypertonic saline evaluated for tubular nephrotoxicity

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    We compared the acute tubular nephrotoxicity of three platinum compounds in children and adults with solid tumors by monitoring the urinary excretion of alanine aminopeptidase, N -acetyl-ÎČ-D-glucosaminidase, and total protein. Cisplatin (100 mg/m 2 ) was administered with mannitol, or at a twofold larger total dosage (50 mg/m 2 per day for 4 days) in a 3% saline infusion. Carboplatin (300 mg/m 2 ) was administered in combination with 5-fluorouracil, and iproplatin was administered in dosages ranging from 216 to 388 mg/m 2 . Enzymuria and proteinuria induced by cisplatin at a total dosage of 200 mg/m 2 on a divided schedule did not significantly differ from that observed for the single 100 mg/m 2 dose. Enzymuria and proteinuria induced by carboplatin and iproplatin were significantly less than that for cisplatin; however, one patient developed chronic tubular damage after three courses of carboplatin, and the acute tubular toxicity of iproplatin in one of 15 patients was exceptional. Our findings support the value of administering cisplatin in hypertonic saline on a divided schedule as a strategy to reduce acute tubular damage. Although carboplatin and iproplatin are less nephrotoxic than cisplatin, occasionally patients experience subclinical acute or chronic tubular damage that may lead to overt nephrotoxicity with continued therapy.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46915/1/280_2004_Article_BF00296257.pd

    Transiting Exoplanet Studies and Community Targets for JWST's Early Release Science Program

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    The James Webb Space Telescope will revolutionize transiting exoplanet atmospheric science due to its capability for continuous, long-duration observations and its larger collecting area, spectral coverage, and spectral resolution compared to existing space-based facilities. However, it is unclear precisely how well JWST will perform and which of its myriad instruments and observing modes will be best suited for transiting exoplanet studies. In this article, we describe a prefatory JWST Early Release Science (ERS) program that focuses on testing specific observing modes to quickly give the community the data and experience it needs to plan more efficient and successful future transiting exoplanet characterization programs. We propose a multi-pronged approach wherein one aspect of the program focuses on observing transits of a single target with all of the recommended observing modes to identify and understand potential systematics, compare transmission spectra at overlapping and neighboring wavelength regions, confirm throughputs, and determine overall performances. In our search for transiting exoplanets that are well suited to achieving these goals, we identify 12 objects (dubbed "community targets") that meet our defined criteria. Currently, the most favorable target is WASP-62b because of its large predicted signal size, relatively bright host star, and location in JWST's continuous viewing zone. Since most of the community targets do not have well-characterized atmospheres, we recommend initiating preparatory observing programs to determine the presence of obscuring clouds/hazes within their atmospheres. Measurable spectroscopic features are needed to establish the optimal resolution and wavelength regions for exoplanet characterization. Other initiatives from our proposed ERS program include testing the instrument brightness limits and performing phase-curve observations.(Abridged)Comment: This is a white paper that originated from an open discussion at the Enabling Transiting Exoplanet Science with JWST workshop held November 16 - 18, 2015 at STScI (http://www.stsci.edu/jwst/science/exoplanets). Accepted for publication in PAS

    Developing Standards for Cultural Competency Training for Health Care Providers to Care for Lesbian, Gay, Bisexual, Transgender, Queer, Intersex, and Asexual Persons: Consensus Recommendations from a National Panel

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    Purpose: Lesbian, gay, bisexual, transgender, queer, intersex, and/or asexual and other sexual and gender diverse persons (LGBTQIA + or SGD persons) experience barriers to equitable health care. The purpose of this article is to describe a collaborative process that resulted in core cultural competency recommendations addressing training for those who provide health care and/or social services to LGBTQIA + patients. Methods: In 2018 and 2019, Whitman-Walker Health, a Federally Qualified Community Health Center in Washing- ton, DC, and the National LGBT Cancer Network purposively selected leaders of community clinics and community-based organizations, cultural competency trainers, and clinicians and researchers with expertise in SGD health with diverse lived experiences to develop consensus-based cultural competency recommendations. Recommendations were developed through a synthesis of peer-reviewed studies, publicly accessible curricula, and evaluations of SGD cultural competency trainings; two in-person convenings; and iterative feedback from diverse stakeholders. Results: Five anchoring recommendations emerged: (1) know your audience; (2) develop and fine-tune the curriculum; (3) employ both adult and transformational learning theories; (4) choose multiple effective trainers; and (5) evaluate impact of training. These recommendations promote an ongoing process of individual and organizational improvement and a stance of humility rather than competence to be mastered. Conclusion: By setting core cultural competency standards for all persons involved in health care and social services, these recommendations complement existing clinical competency recommendations to advance SGD health equity

    Cancer patient and provider responses to companion scales assessing experiences with LGBTQI-affirming healthcare

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    BackgroundSexual and gender minority (SGM) persons are at a higher risk for some cancers and may have poorer health outcomes as a result of ongoing minority stress, social stigma, and cisnormative, heteronormative healthcare environments. This study compared patient and provider experiences of affirming environmental and behavioral cues and also examined provider-reported knowledge, attitudes, behaviors, and clinical preparedness in caring for SGM patients among a convenience sample.MethodsNational convenience samples of oncology providers (n = 107) and patients (n = 88) were recruited separately via snowball sampling. No incentives were provided. After reverse coding of appropriate items for unidirectional analysis, lower scores on items indicated greater knowledge, more affirming attitudes or behaviors, and greater confidence in clinical preparedness to care for SGM patients. Pearson chi-square tests compared dichotomous variables and independent samples t-tests compared continuous variables. Other results were reported using descriptive frequencies.ResultsBoth patient and provider samples were predominantly female sex assigned at birth, cisgender, and heterosexual. Providers were more likely than patients to report affirming cues in clinic, as well as the ability for patients to easily document their name in use and pronouns. Providers were more likely to report asking about patient values and preferences of care versus patients’ recollection of being asked. Patients were more likely to report understanding why they were asked about both sex assigned at birth and gender identity compared to providers’ perceptions that patients would understand being asked about both. Patients were also more likely to report comfort with providers asking about sex assigned at birth and gender identity compared to providers’ perceptions of patient comfort. SGM providers had greater knowledge of SGM patient social determinants of health and cancer risks; felt more prepared to care for gay patients; were more likely to endorse the importance of knowing patient sexual orientation and gender identity; and were more likely to indicate a responsibility to learn about SGM patient needs and champion positive system changes for SGM patients compared to heterosexual/cisgender peers. Overall, providers wished for more SGM-specific training.ConclusionDifferences between patient and provider reports of affirming environments as well as differences between SGM and heterosexual/cisgender provider care support the need for expanded professional training specific to SGM cancer care

    Safety and benefits of interventions to increase folate status in malaria-endemic areas.

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    For decades, folic acid has routinely been given to prevent or treat anaemia in children, pregnant women and people with sickle cell disease. However, there is no conclusive evidence that folate deficiency anaemia constitutes a public health problem in any of these groups. Industrial flour fortification is recommended and implemented in many countries to combat neural tube defects. Dietary folates or folic acid can antagonise the action of antifolate drugs that play a critical role in the prevention and treatment of malaria. Randomised trials have shown that folic acid supplementation increases the rate of treatment failures with sulfadoxine-pyrimethamine. The efficacy of antifolate drugs against Plasmodium is maximized in the absence of exogenous folic acid, suggesting that there is no safe minimum dose of ingested folic acid. We here review the safety and benefits of interventions to increase folate status in malaria-endemic countries. We conclude that formal cost-benefit analyses are required

    Wirtschaftsbauten in der antiken Stadt

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    Über die Wirtschaft der Antike sind wir gut informiert. FĂŒr den Waren- und Geldverkehr standen in den StĂ€dten eigene GebĂ€ude zur VerfĂŒgung, die im römischen Reich von Speicherbauten in bedeutenden Wirtschaftszentren und Hafenorten bis zu Bank- und BörsengebĂ€uden an den zentralen PlĂ€tzen der StĂ€dte reichten. Diese Bauten wurden von ArchĂ€ologen und Bauhistorikern vielfach untersucht, wobei Bauweise und Gestaltung im Vordergrund standen. Wirtschaftshistoriker befassten sich intensiv mit Handels- und GeldgeschĂ€ften, ohne ZusammenhĂ€nge mit Baulichkeiten in den Blick zu nehmen. InterdisziplinĂ€re Zusammenarbeit eröffnet neue Perspektiven. Mit dem Wissen ĂŒber wirtschaftliche VorgĂ€nge lassen sich Bauten besser verstehen, und Bauwerke können ökonomische VorgĂ€nge sichtbar machen. Das wurde beim erstmaligen Gedankenaustausch zwischen den verschiedenen Forschungsdisziplinen rasch deutlich. Der vorliegende Tagungsband enthĂ€lt BeitrĂ€ge ĂŒber Handelsformen und Handelsbeziehungen, er stellt SpeichergebĂ€ude und KaufmannshĂ€user vor und beleuchtet mit dem Magdalensberg bei KĂ€rnten ein bedeutendes Zentrum der Erzgewinnung und der Metallverarbeitung. Einen besonderen Platz nimmt die römische Basilika als großartiges Bank- und BörsengebĂ€ude ein, dessen Entwicklung um 200 v. Chr. quasi schlagartig am Forum Romanum begann und die neue Vormacht Rom als Zentrum der antiken Wirtschaft und zentrale Instanz des Wirtschafts- und Steuerrechts mit neuen MaßstĂ€ben auch stĂ€dtebaulich prĂ€gte. Die beiden letzten BeitrĂ€ge befassen sich mit der weiteren Entwicklung des Begriffes Basilika und seinen Nachwirkungen im Kirchenbau und in der Architekturtheorie bis heute
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