723 research outputs found

    Educational psychologists' perspectives on the medicalisation of childhood behaviour: A focus on Attention Deficit Hyperactive Disorder (ADHD)

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    Aim: This study explores the views of Educational Psychologists (EPs) practising in the UK regarding the assessment, diagnosis and treatment of Attention Deficit Hyperactivity Disorder (ADHD). / Method: An online survey collected from 136 EPs, representing 70 local authorities across the UK. Findings: Responses highlighted how currently EPs are rarely engaged in the assessment of ADHD. However, the data indicated that EPs play an important role in increasing the awareness of contextual factors in children’s behaviour, and are well placed to support the development of individually tailored interventions. It was identified that in many local authorities, current diagnostic practices do not conform to government guidelines regarding both access to psychological interventions and the prescription of medication to pre¬school children. Furthermore, few children were involved in decision making about their treatment. Where Local Authorities have developed standardised pathways or protocols governing the diagnostic process, EPs are involved in the assessment process and children are more likely to access psychological interventions, and for contextual factors to be taken into account. / Limitations: Consistent with the research aims the study focuses exclusively on EP perspectives. As a survey it was not possible to probe for meaning or clarification of issues that emerged. There is a need for further research into successful examples of ADHD treatment pathways that take advantage of the unique contribution of EPs. / Conclusions: Priorities for future work include the need to develop a nationally agreed protocol for a multi-professional approach to assessment and treatment of ADHD. There is an urgent need for careful monitoring of prescription rates, particularly in pre-school children and across different ethnic and social groups. Furthermore, steps should be taken to address the lack of participation by children and young people in decisions about their treatment

    Research methods for children with multiple needs: developing techniques to facilitate all children and young people to have 'a voice'

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    AIM: This study aimed to investigate the experiences of children and young people being educated in residential special schools, with a particular focus on how their rights and wellbeing were being promoted by their schools. METHOD: The study was conducted using participatory research principles and aimed to develop techniques and approaches that would support the inclusion of all children. FINDINGS: The findings indicated that the techniques developed during this study helped to provide insight into the experiences of pupils with a wide range of special needs, and facilitated their voices. The piloting of a method that integrated ethnographic observation techniques with checklists adopted from the SCERTS framework (developed by Prizant and colleagues) provided important insights into the experiences and preferences of children with the greatest learning and communication needs, and is an approach worthy of further development. LIMITATIONS: The study was conducted over a very short time frame, one academic term, which influenced the time available to refine techniques and work with our young researchers’ group. Whilst every residential special school in England was invited to participate, the sample was based on those schools that volunteered, many with good and outstanding Ofsted ratings. Therefore, the sample may not be fully representative of the range of experiences provided by residential special schools in England. CONCLUSION: The development of specific techniques to facilitate an understanding of the views and experiences of children who experience significant challenges in communication is possible. The knowledge, skills and expertise of educational psychologists and other professionals can be harnessed to respond creatively to this challenge and it is important to acknowledge the reciprocal value of professional practice and research skills

    Supporting children with severe to profound learning difficulties and complex communication needs to make their views known: observation tools and methods

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    All children have the right to shape decisions that influence their lives. Yet, children with severe-to-profound intellectual disabilities and complex communication needs are often marginalized from this process. Here, we examined the utility of a set of tools incorporating ethnographic and structured observational methods with three such children. We specifically examined the communicative behavior that these children used to share their views and the ways in which adults recognized and responded to them. The three case studies illustrate (1) that these children have ways to make their intentions known, even though they may use idiosyncratic ways of doing so; (2) that adults play important roles in supporting their communicative bids; and (3) that this set of tools was sufficiently sensitive to subtle and fine-grained nonverbal cues that might otherwise be overlooked

    Development and application of a new measure of engagement in out-patient HIV care.

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    OBJECTIVES: Commonly used measures of engagement in HIV care do not take into account that the frequency of attendance is related to changes in treatment and health status. This study developed a new measure of engagement in care (EIC) incorporating clinical factors. METHODS: We conducted semi-structured interviews with eight HIV physicians to identify factors associated with the timing of patients' next scheduled appointments. These factors informed the development of an algorithm to classify each month of follow-up as "in care" (on or before the time of the next expected attendance) or "out of care" (after the time of the next expected attendance). The EIC algorithm was applied to data from the UK Collaborative HIV Cohort (UK CHIC) study, a large clinical cohort study. RESULTS: The interviews indicated that time to next appointment varied depending on psychosocial and physical comorbidities, and clinical factors (time since diagnosis, AIDS diagnosis, treatment status, CD4 count and viral load). The resulting EIC algorithm was applied to 44 432 patients; 83.9% of the 3 021 224 person-months were "in care". Greater EIC was independently associated with older age, white ethnicity, HIV acquisition through sex between men, current use of antiretroviral therapy (ART), a higher nadir CD4 count, later calendar year and being seen at the clinic for the first time within the last year. CONCLUSIONS: This algorithm describing engagement in HIV care incorporates a time-updated measure of patients' treatment and health status. It adds to the options available for measuring this key performance indicator

    Escherichia coli induces apoptosis and proliferation of mammary cells

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    Mammary cell apoptosis and proliferation were assessed after injection of Escherichia coli into the left mammary quarters of six cows. Bacteriological analysis of foremilk samples revealed coliform infection in the injected quarters of four cows. Milk somatic cell counts increased in these quarters and peaked at 24 h after bacterial injection. Body temperature also increased, peaking at 12 h postinjection, The number of apoptotic cells was significantly higher in the mastitic tissue than in the uninfected control. Expression of Bax and interleukin-1 beta converting enzyme increased in the mastitic tissue at 24 h and 72 h postinfection, whereas Bcl-2 expression decreased at 24 h but did not differ significantly from the control at 72 h postinfection, Induction of matrix metalloproteinase-g, stromelysin-1 and urokinase-type plasminogen activator was also observed in the mastitic tissue. Moreover, cell proliferation increased in the infected tissue, These results demonstrate that Escherichia coli-induced mastitis promotes apoptosis and cell proliferation

    Paroxysmal nocturnal hemoglobinuria (PNH): higher sensitivity and validity in diagnosis and serial monitoring by flow cytometric analysis of reticulocytes

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    Flow cytometric analysis of GPI-anchored proteins (GPI-AP) is the gold standard for diagnosis of paroxysmal nocturnal hemoglobinuria (PNH). Due to therapy options and the relevance of GPI-deficient clones for prognosis in aplastic anaemia detection of PNH is gaining importance. However, no generally accepted standard has been established. This study analysed the usefulness of a flow cytometric panel with CD58, CD59 on reticulocytes and erythrocytes, CD24/CD66b and CD16, FLAER on granulocytes and CD14, and CD48 on monocytes. Actual cut-off (mean + 2 SD) for GPI-deficient cells was established in healthy blood donors. We studied 1,296 flow cytometric results of 803 patients. Serial monitoring was analysed during a median follow-up of 1,039 days in 155 patients. Of all, 22% and 48% of 155 follow-up patients. showed significant GPI-AP-deficiency at time of initial analyses. During follow-up in 9%, a new PNH diagnosis, and in 28%, a significant change of size or lineage involvement was demonstrated. Highly significant correlations for GPI-AP deficiency were found within one cell lineage (r2 = 0.61–0.95, p < 0.0001) and between the different cell lineages (r2 = 0.49–0.88, p < 0.0001). Especially for detection of small GPI-deficient populations, reticulocytes and monocytes proved to be sensitive diagnostic tools. Our data showed superiority of reticulocyte analyses compared with erythrocyte analyses due to transfusion and hemolysis independency especially in cases with small GPI-deficient populations. In conclusion, a screening panel of at least two different GPI-AP markers on granulocytes, erythrocytes, and reticulocytes provides a simple and rapid method to detect even small GPI-deficient populations. Among the markers in our panel, CD58 and CD59 on reticulocytes, CD24/66b, and eventually FLAER on granulocytes as well as CD14 on monocytes were most effective for flow cytometric diagnosis of GPI deficiency

    Canine respiratory coronavirus employs caveolin-1-mediated pathway for internalization to HRT-18G cells

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    Canine respiratory coronavirus (CRCoV), identified in 2003, is a member of the Coronaviridae family. The virus is a betacoronavirus and a close relative of human coronavirus OC43 and bovine coronavirus. Here, we examined entry of CRCoV into human rectal tumor cells (HRT-18G cell line) by analyzing co-localization of single virus particles with cellular markers in the presence or absence of chemical inhibitors of pathways potentially involved in virus entry. We also targeted these pathways using siRNA. The results show that the virus hijacks caveolin-dependent endocytosis to enter cells via endocytic internalization

    Team Objective Structured Bedside Assessment (TOSBA) as formative assessment in undergraduate Obstetrics and Gynaecology: a cohort study.

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    BACKGROUND: Team Objective Structured Bedside Assessment (TOSBA) is a learning approach in which a team of medical students undertake a set of structured clinical tasks with real patients in order to reach a diagnosis and formulate a management plan and receive immediate feedback on their performance from a facilitator. TOSBA was introduced as formative assessment to an 8-week undergraduate teaching programme in Obstetrics and Gynaecology (O\u26G) in 2013/14. Each student completed 5 TOSBA sessions during the rotation. The aim of the study was to evaluate TOSBA as a teaching method to provide formative assessment for medical students during their clinical rotation. The research questions were: Does TOSBA improve clinical, communication and/or reasoning skills? Does TOSBA provide quality feedback? METHODS: A prospective cohort study was conducted over a full academic year (2013/14). The study used 2 methods to evaluate TOSBA as a teaching method to provide formative assessment: (1) an online survey of TOSBA at the end of the rotation and (2) a comparison of the student performance in TOSBA with their performance in the final summative examination. RESULTS: During the 2013/14 academic year, 157 students completed the O\u26G programme and the final summative examination . Each student completed the required 5 TOSBA tasks. The response rate to the student survey was 68 % (n = 107/157). Students reported that TOSBA was a beneficial learning experience with a positive impact on clinical, communication and reasoning skills. Students rated the quality of feedback provided by TOSBA as high. Students identified the observation of the performance and feedback of other students within their TOSBA team as key features. High achieving students performed well in both TOSBA and summative assessments. The majority of students who performed poorly in TOSBA subsequently passed the summative assessments (n = 20/21, 95 %). Conversely, the majority of students who failed the summative assessments had satisfactory scores in TOSBA (n = 6/7, 86 %). CONCLUSIONS: TOSBA has a positive impact on the clinical, communication and reasoning skills of medical students through the provision of high-quality feedback. The use of structured pre-defined tasks, the observation of the performance and feedback of other students and the use of real patients are key elements of TOSBA. Avoiding student complacency and providing accurate feedback from TOSBA are on-going challenges

    New insights into the classification and nomenclature of cortical GABAergic interneurons.

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    A systematic classification and accepted nomenclature of neuron types is much needed but is currently lacking. This article describes a possible taxonomical solution for classifying GABAergic interneurons of the cerebral cortex based on a novel, web-based interactive system that allows experts to classify neurons with pre-determined criteria. Using Bayesian analysis and clustering algorithms on the resulting data, we investigated the suitability of several anatomical terms and neuron names for cortical GABAergic interneurons. Moreover, we show that supervised classification models could automatically categorize interneurons in agreement with experts' assignments. These results demonstrate a practical and objective approach to the naming, characterization and classification of neurons based on community consensus

    Dimensionality of Carbon Nanomaterials Determines the Binding and Dynamics of Amyloidogenic Peptides: Multiscale Theoretical Simulations

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    Experimental studies have demonstrated that nanoparticles can affect the rate of protein self-assembly, possibly interfering with the development of protein misfolding diseases such as Alzheimer's, Parkinson's and prion disease caused by aggregation and fibril formation of amyloid-prone proteins. We employ classical molecular dynamics simulations and large-scale density functional theory calculations to investigate the effects of nanomaterials on the structure, dynamics and binding of an amyloidogenic peptide apoC-II(60-70). We show that the binding affinity of this peptide to carbonaceous nanomaterials such as C60, nanotubes and graphene decreases with increasing nanoparticle curvature. Strong binding is facilitated by the large contact area available for π-stacking between the aromatic residues of the peptide and the extended surfaces of graphene and the nanotube. The highly curved fullerene surface exhibits reduced efficiency for π-stacking but promotes increased peptide dynamics. We postulate that the increase in conformational dynamics of the amyloid peptide can be unfavorable for the formation of fibril competent structures. In contrast, extended fibril forming peptide conformations are promoted by the nanotube and graphene surfaces which can provide a template for fibril-growth
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