115 research outputs found
Clinical handovers between pre-hospital and hospital staff:Literature review
Background: Clinical handover plays a vital role in patient care and has been investigated in hospital settings, but less attention has been paid to the interface between prehospital and hospital settings. This paper reviews the published research on these handovers. Methods: A computerised literature search was conducted for papers published between 2000 and 2013 using combinations of terms: ‘handover’, ‘handoff’, ‘prehospital’, ‘ambulance’, ‘paramedic’ and ‘emergency’ and citation searching. Papers were assessed and included if determined to be at least moderate quality with a primary focus on prehospital to hospital handover. Findings: 401 studies were identified, of which 21 met our inclusion criteria. These revealed concerns about communication and information transfer, and themes concerning context, environment and interprofessional relationships. It is clear that handover exchanges are complicated by chaotic and noisy environments, lack of time and resources. Poor communication is linked to behaviours such as not listening, mistrust and misunderstandings between staff. While standardisation is offered as a solution, notably in terms of the use of mnemonics (alphabetical memory aids), evidence for benefit appears inconclusive. Conclusions: This review raises concerns about handovers at the interface between prehospital and hospital settings. The quality of existing research in this area is relatively poor and further high-quality research is required to understand this important part of emergency care. We need to understand the complexity of handover better to grasp the challenges of context and interprofessional relationships before we reach for tools and techniques to standardise part of the handover process
Funding Field Catalysts from Origins to Revolutionizing the World
At Bridgespan, we call the organizations that are often key to unlocking equitable systems change "field catalysts." While equitable systems change requires a diverse set of actors playing distinct and complementary roles across a field or ecosystem, field catalysts harmonize and drive that multifaceted work, serving as a kind of nerve center for the matrix of activity needed to transform our inequitably designed systems. Think of the critical role Gavi, the Vaccine Alliance, played in the eradication of polio, or the Campaign for Tobacco-Free Kids' contribution to the dramatic plunge in teen smoking rates. In another example, the goal of marriage equality in the United States was reached thanks, in part, to the Freedom to Marry organization, which orchestrated its campaign for 12 years.Behind the scenes, philanthropy often plays a role in these achievements. Surely there must be other opportunities for funders to support equitable systems change. So we set out to learn more about the origin stories of field catalysts, the challenges they face, and—importantly—the ways in which they believe funders can help them
Ribonuclease H1-targeted R-loops in surface antigen gene expression sites can direct trypanosome immune evasion
Switching of the Variant Surface Glycoprotein (VSG) in Trypanosoma brucei provides a crucial host immune evasion strategy that is catalysed both by transcription and recombination reactions, each operating within specialised telomeric VSG expression sites (ES). VSG switching is likely triggered by events focused on the single actively transcribed ES, from a repertoire of around 15, but the nature of such events is unclear. Here we show that RNA-DNA hybrids, called R-loops, form preferentially within sequences termed the 70 bp repeats in the actively transcribed ES, but spread throughout the active and inactive ES, in the absence of RNase H1, which degrades R-loops. Loss of RNase H1 also leads to increased levels of VSG coat switching and replication-associated genome damage, some of which accumulates within the active ES. This work indicates VSG ES architecture elicits R-loop formation, and that these RNA-DNA hybrids connect T. brucei immune evasion by transcription and recombination
Trypanosoma brucei ribonuclease H2A is an essential enzyme that resolves R-loops associated with transcription initiation and antigenic variation
Ribonucleotides represent a threat to DNA genome stability and transmission. Two types of Ribonuclease H (RNase H) excise ribonucleotides when they form part of the DNA strand, or hydrolyse RNA when it base-pairs with DNA in structures termed R-loops. Loss of either RNase H is lethal in mammals, whereas yeast survives the absence of both enzymes. RNase H1 loss is tolerated by the parasite Trypanosoma brucei but no work has examined the function of RNase H2. Here we show that loss of T. brucei RNase H2 (TbRH2A) leads to growth and cell cycle arrest that is concomitant with accumulation of nuclear damage at sites of RNA polymerase (Pol) II transcription initiation, revealing a novel and critical role for RNase H2. Differential gene expression analysis reveals limited overall changes in RNA levels for RNA Pol II genes after TbRH2A loss, but increased perturbation of nucleotide metabolic genes. Finally, we show that TbRH2A loss causes R-loop and DNA damage accumulation in telomeric RNA Pol I transcription sites, also leading to altered gene expression. Thus, we demonstrate separation of function between two nuclear T. brucei RNase H enzymes during RNA Pol II transcription, but overlap in function during RNA Pol I-mediated gene expression during host immune evasion
Expanding and developing the workforce to serve autistic people and people with intellectual disability
This paper considers current workforce issues facing psychological professionals working in NHS services, examining the challenges, and identifying opportunities to better meet the needs of autistic people and people with an intellectual disability (PwID) across the lifespan. The aim of this paper is to identify and publicly articulate the need for a coherent approach to guide the practice of psychological professionals when helping autistic people and/or PwID. It should be noted that the scope of the paper is limited to autism and intellectual disability. In addressing these broad groups and their co-occurring conditions and needs, we anticipate that many principles could be applied to other neurodevelopmental conditions. We also note the significant potential challenges in linking intellectual disability and autistic populations, hence have attempted – in drawing together a working group to write this paper – to ensure representation from a range of psychological professionals including those in policy, leadership, and training roles, those working in specialist or generic mental health services and undertaking clinical research across the lifespan. Objectives: ■To help define and support clear action so that all sectors welcome and adequately support people with neurodevelopmental differences, including autistic people and/or PwID. ■To play a role in the development, planning and evaluation of new psychological professions roles such as the Clinical Associates in Psychology (CAPS) and Education Mental Health Practitioners (EMHPs). ■To reflect on the obstacles to recruiting to autism and learning disability services and to propose approaches to developing a sustainable psychological workforce in these areas. ■To recognise where good examples of education and training programmes exist to address training, confidence and competence for all psychological professionals working with those who may be autistic and/or have an ID, and consider how to establish a more consistent approach to education, training and CPD across the workforce. ■To engage in policy discussions around the current gaps, such as the demand for diagnostic assessments and support which significantly outstrips capacity, whilst highlighting unrealised opportunities, through for example, a systematic approach to training. ■To advocate for the need for the voice of autistic people and PwID and their families/carers which is often absent from the design and offer of help.</p
Expanding and developing the workforce to serve autistic people and people with intellectual disability
This paper considers current workforce issues facing psychological professionals working in NHS services, examining the challenges, and identifying opportunities to better meet the needs of autistic people and people with an intellectual disability (PwID) across the lifespan. The aim of this paper is to identify and publicly articulate the need for a coherent approach to guide the practice of psychological professionals when helping autistic people and/or PwID. It should be noted that the scope of the paper is limited to autism and intellectual disability. In addressing these broad groups and their co-occurring conditions and needs, we anticipate that many principles could be applied to other neurodevelopmental conditions. We also note the significant potential challenges in linking intellectual disability and autistic populations, hence have attempted – in drawing together a working group to write this paper – to ensure representation from a range of psychological professionals including those in policy, leadership, and training roles, those working in specialist or generic mental health services and undertaking clinical research across the lifespan. Objectives: ■To help define and support clear action so that all sectors welcome and adequately support people with neurodevelopmental differences, including autistic people and/or PwID. ■To play a role in the development, planning and evaluation of new psychological professions roles such as the Clinical Associates in Psychology (CAPS) and Education Mental Health Practitioners (EMHPs). ■To reflect on the obstacles to recruiting to autism and learning disability services and to propose approaches to developing a sustainable psychological workforce in these areas. ■To recognise where good examples of education and training programmes exist to address training, confidence and competence for all psychological professionals working with those who may be autistic and/or have an ID, and consider how to establish a more consistent approach to education, training and CPD across the workforce. ■To engage in policy discussions around the current gaps, such as the demand for diagnostic assessments and support which significantly outstrips capacity, whilst highlighting unrealised opportunities, through for example, a systematic approach to training. ■To advocate for the need for the voice of autistic people and PwID and their families/carers which is often absent from the design and offer of help.</p
Isolation and characterization of novel microsatellite markers and their application for diversity assessment in cultivated groundnut (Arachis hypogaea)
<p>Abstract</p> <p>Background</p> <p>Cultivated peanut or groundnut (<it>Arachis hypogaea </it>L.) is the fourth most important oilseed crop in the world, grown mainly in tropical, subtropical and warm temperate climates. Due to its origin through a single and recent polyploidization event, followed by successive selection during breeding efforts, cultivated groundnut has a limited genetic background. In such species, microsatellite or simple sequence repeat (SSR) markers are very informative and useful for breeding applications. The low level of polymorphism in cultivated germplasm, however, warrants a need of larger number of polymorphic microsatellite markers for cultivated groundnut.</p> <p>Results</p> <p>A microsatellite-enriched library was constructed from the genotype TMV2. Sequencing of 720 putative SSR-positive clones from a total of 3,072 provided 490 SSRs. 71.2% of these SSRs were perfect type, 13.1% were imperfect and 15.7% were compound. Among these SSRs, the GT/CA repeat motifs were the most common (37.6%) followed by GA/CT repeat motifs (25.9%). The primer pairs could be designed for a total of 170 SSRs and were optimized initially on two genotypes. 104 (61.2%) primer pairs yielded scorable amplicon and 46 (44.2%) primers showed polymorphism among 32 cultivated groundnut genotypes. The polymorphic SSR markers detected 2 to 5 alleles with an average of 2.44 per locus. The polymorphic information content (PIC) value for these markers varied from 0.12 to 0.75 with an average of 0.46. Based on 112 alleles obtained by 46 markers, a phenogram was constructed to understand the relationships among the 32 genotypes. Majority of the genotypes representing subspecies <it>hypogaea </it>were grouped together in one cluster, while the genotypes belonging to subspecies <it>fastigiata </it>were grouped mainly under two clusters.</p> <p>Conclusion</p> <p>Newly developed set of 104 markers extends the repertoire of SSR markers for cultivated groundnut. These markers showed a good level of PIC value in cultivated germplasm and therefore would be very useful for germplasm analysis, linkage mapping, diversity studies and phylogenetic relationships in cultivated groundnut as well as related <it>Arachis </it>species.</p
Pandemic H1N1 Influenza A Viruses Are Resistant to the Antiviral Activities of Innate Immune Proteins of the Collectin and Pentraxin Superfamilies
Abstract
Acquired immune responses elicited to recent strains of seasonal H1N1 influenza viruses provide limited protection against emerging A(H1N1) pandemic viruses. Accordingly, pre-existing or rapidly induced innate immune defenses are of critical importance in limiting early infection. Respiratory secretions contain proteins of the innate immune system, including members of the collectin and pentraxin superfamilies. These mediate potent antiviral activity and act as an initial barrier to influenza infection. In this study, we have examined the sensitivity of H1N1 viruses, including pandemic virus strains, for their sensitivity to collectins (surfactant protein [SP]-D and mannose-binding lectin [MBL]) and to the pentraxin PTX3. Human SP-D and MBL inhibited virus-induced hemagglutinating activity, blocked the enzymatic activity of the viral neuraminidase, and neutralized the ability of H1N1 viruses to infect human respiratory epithelial cells in a manner that correlated with the degree of glycosylation in the globular head of the hemagglutinin. Recent seasonal H1N1 viruses expressed three to four N-glycosylation sequons on the head of hemagglutinin and were very sensitive to inhibition by SP-D or MBL, whereas A(H1N1) pandemic viruses expressed a single N-glycosylation sequon and were resistant to either collectin. Of interest, both seasonal and pandemic H1N1 viruses were resistant to PTX3. Thus, unlike recent seasonal H1N1 strains of influenza virus, A(H1N1) pandemic viruses are resistant to the antiviral activities of innate immune proteins of the collectin superfamily
Laboratory Information Management Software for genotyping workflows: applications in high throughput crop genotyping
BACKGROUND: With the advances in DNA sequencer-based technologies, it has become possible to automate several steps of the genotyping process leading to increased throughput. To efficiently handle the large amounts of genotypic data generated and help with quality control, there is a strong need for a software system that can help with the tracking of samples and capture and management of data at different steps of the process. Such systems, while serving to manage the workflow precisely, also encourage good laboratory practice by standardizing protocols, recording and annotating data from every step of the workflow. RESULTS: A laboratory information management system (LIMS) has been designed and implemented at the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) that meets the requirements of a moderately high throughput molecular genotyping facility. The application is designed as modules and is simple to learn and use. The application leads the user through each step of the process from starting an experiment to the storing of output data from the genotype detection step with auto-binning of alleles; thus ensuring that every DNA sample is handled in an identical manner and all the necessary data are captured. The application keeps track of DNA samples and generated data. Data entry into the system is through the use of forms for file uploads. The LIMS provides functions to trace back to the electrophoresis gel files or sample source for any genotypic data and for repeating experiments. The LIMS is being presently used for the capture of high throughput SSR (simple-sequence repeat) genotyping data from the legume (chickpea, groundnut and pigeonpea) and cereal (sorghum and millets) crops of importance in the semi-arid tropics. CONCLUSION: A laboratory information management system is available that has been found useful in the management of microsatellite genotype data in a moderately high throughput genotyping laboratory. The application with source code is freely available for academic users and can be downloaded from
Effects of antiplatelet therapy on stroke risk by brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases: subgroup analyses of the RESTART randomised, open-label trial
Background
Findings from the RESTART trial suggest that starting antiplatelet therapy might reduce the risk of recurrent symptomatic intracerebral haemorrhage compared with avoiding antiplatelet therapy. Brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases (such as cerebral microbleeds) are associated with greater risks of recurrent intracerebral haemorrhage. We did subgroup analyses of the RESTART trial to explore whether these brain imaging features modify the effects of antiplatelet therapy
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