137 research outputs found
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The Library is for Everyone: Cultivating Campus Partnerships to Enhance Library Accessibility
This poster was presented at the ACRL NEC conference on May 6, 2019. The Accessibility Team, part of the Diversity and Inclusion Steering Committee at the University of New Hampshire Library, shared strategies and methods for establishing campus partnerships to enhance library space accessibility. They presented ideas about fostering outreach to campus partners, methods to assess their own physical library spaces, and strategies for collecting formal and informal data about library accessibility
Children's experiences of care on walking and cycling journeys between home and school in Healthy New Towns: Reframing active school travel
The Healthy New Town programme in England set out to ‘put health into place’ by supporting the design and construction of healthy places to live, including by creating safe environments for active travel. To explore the impact of this approach, this study examined how children and their families experienced school journeys in two contrasting Healthy New Towns in England, one an affluent new town in the early stages of construction and the other more economically deprived and established. We undertook photo-elicitation and go-along interviews with 24 children aged 7-12 years and semi-structured interviews with 17 caregivers. We found that experiences of care were important for children's school travel. In the ‘deprived’ town, opportunities for children to care and to be cared for were enjoyed, facilitated by routes with limited traffic, pockets of ‘nature’, and possibilities to encounter meaningful others. For families living in a town under construction, the need to negotiate unfinished travel infrastructure, and a sense of being ‘in limbo’, was experienced as an absence of care by planners and developers. Interventions to promote children's active travel should consider the role of care-full planning in facilitating walking and cycling journeys
JC Virus infected choroid plexus epithelial cells produce extracellular vesicles that infect glial cells independently of the virus attachment receptor
The human polyomavirus, JCPyV, is the causative agent of progressive multifocal leukoencephalopathy (PML) in immunosuppressed and immunomodulated patients. Initial infection with JCPyV is common and the virus establishes a long-term persistent infection in the urogenital system of 50-70% of the human population worldwide. A major gap in the field is that we do not know how the virus traffics from the periphery to the brain to cause disease. Our recent discovery that human choroid plexus epithelial cells are fully susceptible to virus infection together with reports of JCPyV infection of choroid plexus in vivo has led us to hypothesize that the choroid plexus plays a fundamental role in this process. The choroid plexus is known to relay information between the blood and the brain by the release of extracellular vesicles. This is particularly important because human macroglia (oligodendrocytes and astrocytes), the major targets of virus infection in the central nervous system (CNS), do not express the known attachment receptors for the virus and do not bind virus in human tissue sections. In this report we show that JCPyV infected choroid plexus epithelial cells produce extracellular vesicles that contain JCPyV and readily transmit the infection to human glial cells. Transmission of the virus by extracellular vesicles is independent of the known virus attachment receptors and is not neutralized by antisera directed at the virus. We also show that extracellular vesicles containing virus are taken into target glial cells by both clathrin dependent endocytosis and macropinocytosis. Our data support the hypothesis that the choroid plexus plays a fundamental role in the dissemination of virus to brain parenchyma
Exploring the views and experiences of people recovering from a stroke about a new text message intervention to promote physical activity after rehabilitation-Keeping Active with Texting After Stroke:A qualitative study
Participating in exercise following a stroke is essential for recovery. When community-based rehabilitation services end, some people struggle to remain active. We codesigned Keeping Active with Texting After Stroke (KATS), a text message intervention to support home-based, self-directed plans to continue exercising. KATS delivers a series of automated text messages over a 12-week period from the point of discharge from National Health Service-funded therapy. The aim of this study was to explore the views and experiences of the first cohort of participants to complete the KATS intervention about the meaning, engagement, workability and worth of the intervention
Opportunities in posthemorrhagic hydrocephalus research: outcomes of the Hydrocephalus Association Posthemorrhagic Hydrocephalus Workshop
Abstract
The Hydrocephalus Association Posthemorrhagic Hydrocephalus Workshop was held on July 25 and 26, 2016 at the National Institutes of Health. The workshop brought together a diverse group of researchers including pediatric neurosurgeons, neurologists, and neuropsychologists with scientists in the fields of brain injury and development, cerebrospinal and interstitial fluid dynamics, and the blood–brain and blood–CSF barriers. The goals of the workshop were to identify areas of opportunity in posthemorrhagic hydrocephalus research and encourage scientific collaboration across a diverse set of fields. This report details the major themes discussed during the workshop and research opportunities identified for posthemorrhagic hydrocephalus. The primary areas include (1) preventing intraventricular hemorrhage, (2) stopping primary and secondary brain damage, (3) preventing hydrocephalus, (4) repairing brain damage, and (5) improving neurodevelopment outcomes in posthemorrhagic hydrocephalus.https://deepblue.lib.umich.edu/bitstream/2027.42/142869/1/12987_2018_Article_96.pd
JC Polyomavirus Uses Extracellular Vesicles To Infect Target Cells
The endemic human JC polyomavirus (JCPyV) causes progressive multifocal leukoencephalopathy in immune-suppressed patients. The mechanisms of virus infection in vivo are not understood because the major target cells for virus in the brain do not express virus receptors and do not bind virus. We found that JCPyV associates with extracellular vesicles (EVs) and can infect target cells independently of virus receptors. Virus particles were found packaged inside extracellular vesicles and attached to the outer side of vesicles. Anti-JCPyV antisera reduced infection by purified virus but had no effect on infection by EV-associated virus. Treatment of cells with the receptor-destroying enzyme neuraminidase inhibited infection with purified virus but did not inhibit infection by EV-associated virus. Mutant pseudoviruses defective in sialic acid receptor binding could not transduce cells as purified pseudovirions but could do so when associated with EVs. This alternative mechanism of infection likely plays a critical role in the dissemination and spread of JCPyV both to and within the central nervous system
Concert recording 2021-11-08
[Track 1]. Six metamorphoses after Ovid. I. Pan ; IV. Bacchus ; V. Narcissus / Benjamin Britten -- [Track 2]. Wind quintet, op. 79. I. Allegro non troppo / August Klughardt -- [Track 3]. Shepherds of provence. I. Pastorale provencale ; II. Chant des berges provencaux (Call at dawn) ; III. Sous les etoiles (Beneath the stars) ; IV. Fete villageoise / Eugene Bozza -- [Track 4]. Trio, op. 87. I. Allegro / Ludwig van Beethoven -- [Track 5]. Brushstrokes. I. Monet / Alyssa Morris -- [Track 6]. The dark-eyed sailor / Ralph Vaughan Williams ; arranged by Bussick
Concert recording 2021-12-04
[Track 1]. Scherzo concertante / Vaclav Nehlybel -- [Track 2]. Sonata no. 3 for horn and piano. I. Moderately fast ; [Track 3]. II. Slow / Alec Wilder -- [Track 4]. Rondo in Bâ™ major / Arnold Cooke -- [Track 5]. Sonata for horn and piano. I. Hymn ; II. Riding to higher clouds / Margaret Brouwer -- [Track 6]. Horn concerto no. 3 in Eâ™ major, K. 447. I. Allegro ; II. Larghetto ; III. Allegro / W.A. Mozart -- [Track 7]. Reflections on a Southern hymn. I. Intonation ; IV. Wondrous love / Stephen Gryc -- [Track 8]. Umoja / Valerie Coleman -- [Track 9]. Amazing grace / arranged by Luther Henderson
Biogenesis of JC Polyomavirus Associated Extracellular Vesicles
JC polyomavirus (JCPyV) is a small, non-enveloped virus that persists in the kidney in about half the adult population. In severely immune-compromised individuals JCPyV causes the neurodegenerative disease progressive multifocal leukoencephalopathy (PML) in the brain. JCPyV has been shown to infect cells by both direct and indirect mechanisms, the latter involving extracellular vesicle (EV) mediated infection. While direct mechanisms of infection are well studied indirect EV mediated mechanisms are poorly understood. Using a combination of chemical and genetic approaches we show that several overlapping intracellular pathways are responsible for the biogenesis of virus containing EV. Here we show that targeting neutral sphingomyelinase 2 (nSMase2) with the drug cambinol decreased the spread of JCPyV over several viral life cycles. Genetic depletion of nSMase2 by either shRNA or CRISPR/Cas9 reduced EV-mediated infection. Individual knockdown of seven ESCRT-related proteins including HGS, ALIX, TSG101, VPS25, VPS20, CHMP4A, and VPS4A did not significantly reduce JCPyV associated EV (JCPyV(+) EV) infectivity, whereas knockdown of the tetraspanins CD9 and CD81 or trafficking and/or secretory autophagy-related proteins RAB8A, RAB27A, and GRASP65 all significantly reduced the spread of JCPyV and decreased EV-mediated infection. These findings point to a role for exosomes and secretory autophagosomes in the biogenesis of JCPyV associated EVs with specific roles for nSMase2, CD9, CD81, RAB8A, RAB27A, and GRASP65 proteins
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