50 research outputs found

    A Strategy for Partnering in the Public Sector

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    Partnering is a cooperative approach to contract management that reduces costs, litigation, and stress. The Portland District of the Corps of Engineers has successfully used partnering as a formal management strategy. This paper presents an overview of the partnering strategy

    Durability of Response in Children Treated with Pegylated Interferon alfa-2a +/- Ribavirin for Chronic Hepatitis C

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    Objectives: No long-term data have been published on the durability of response following pegylated interferon (PegIFN) treatment in children with chronic hepatitis C. This prospective, multicenter, long-term follow-up (LTFU) study aimed to assess long-term durability of sustained virological response (SVR), long-term safety and tolerability, and the association between IL28B genotype and treatment response, in children previously treated with PegIFN alfa-2a ± ribavirin (RBV) in the PEDS-C trial. Methods: A total of 93 patients were assessed for enrollment, and 38 enrolled in the study. Patients attended 2 study visits: 5 (mean 5.6, range 4.1–6.6) and 6 (6.6, 5.1–7.7) years after treatment cessation. Standardized medical history, physical examination, and laboratory testing were performed at these visits. Reminder telephone calls were conducted at 4 and 8 months after the initial visit. Results: The LTFU cohort was the representative of the original PEDS-C cohort because both baseline and treatment characteristics were comparable. Of the 38 participants, 21 achieved SVR (responders) during the PEDS-C trial and 17 had not (nonresponders). All 21 responders maintained undetectable hepatitis C virus RNA during the LTFU (4.4–7.0 years after achieving SVR) in contrast to the nonresponders who demonstrated persistent viremia. IL28B CC genotype was associated with SVR (67% vs 30% in non-CC, P = 0.028). Conclusion: Long-term durability of SVR is excellent following PegIFN alfa-2a treatment in children with chronic hepatitis C; SVR is higher in those with IL28B CC versus non-CC

    Cardiovascular safety of tocilizumab versus etanercept in rheumatoid arthritis: a randomized controlled trial

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    Objective: To compare the risk for major adverse cardiovascular events (MACE) in RA patients treated with tocilizumab versus the tumor necrosis factor inhibitor etanercept. Methods: This randomized, open‐label, parallel‐group trial enrolled patients with active seropositive RA (N=3080), inadequate responses to conventional synthetic disease‐modifying antirheumatic drugs, and at least one cardiovascular risk factor. Patients were randomly assigned 1:1 to open‐label tocilizumab 8 mg/kg/month or etanercept 50 mg/week and followed up for an average of 3.2 years. The primary end point was comparison of time‐to‐first MACE. The trial was powered to exclude a 1.8 or higher relative hazard of MACE for tocilizumab versus etanercept. Results: By week 4, serum low‐density lipoprotein cholesterol, high‐density lipoprotein cholesterol, and triglyceride levels were 11.1%, 5.7%, and 13.6% higher, respectively, for patients allocated to tocilizumab compared with etanercept (all P<.001). During follow‐up, 83 MACE occurred in the tocilizumab group compared with 78 in the etanercept group. The estimated hazard of MACE for tocilizumab relative to etanercept was 1.05 (95% confidence interval=0.77, 1.43). Result were similar in sensitivity analyses and the on‐treatment analysis. Adverse events that occurred more frequently in the tocilizumab group included serious infection and gastrointestinal perforation. Conclusion: The trial, which provides insights into the cardiovascular safety of tocilizumab versus etanercept, excluded a relative risk for MACE of 1.43 or higher. This result should be interpreted in the context of the clinical efficacy and the non‐cardiovascular safety of tocilizumab

    Functional characterisation of novel NR5A1 variants reveals multiple complex roles in Disorders of Sex Development

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    Variants in the NR5A1 gene encoding SF1 have been described in a diverse spectrum of disorders of sex development (DSD). Recently, we reported the use of a targeted gene panel for DSD where we identified 15 individuals with a variant in NR5A1, nine of which are novel. Here, we examine the functional effect of these changes in relation to the patient phenotype. All novel variants tested had reduced trans-activational activity, while several had altered protein level, localization, or conformation. In addition, we found evidence of new roles for SF1 protein domains including a region within the ligand binding domain that appears to contribute to SF1 regulation of Mu¨llerian development. There was little correlation between the severity of the phenotype and the nature of the NR5A1 variant. We report two familial cases of NR5A1 deficiency with evidence of variable expressivity; we also report on individuals with oligogenic inheritance. Finally, we found that the nature of the NR5A1 variant does not inform patient outcomes (including pubertal androgenization and malignancy risk). This study adds nine novel pathogenic NR5A1 variants to the pool of diagnostic variants. It highlights a greater need for understanding the complexity of SF1 function and the additional factors that contribute

    Active involvement of learning disabilities service users in the development and delivery of a teaching session to pre-registration nurses : students' perspectives

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    A teaching session about service users' experiences of accessing and receiving health and social care was designed and delivered by service users to first year BSc Nursing students. The aim was to enhance students' knowledge, skills and confidence in caring for people with a learning disability. An evaluation research study was undertaking at one university in London into the perceived effectiveness of the teaching session, including students' perceptions of the extent to which the service users' teaching session was useful, the impact of the session, its benefits and challenges and the sustainability of teaching sessions delivered by service users. Data were collected through an online questionnaire. Quantitative analysis was undertaken of Likert-style questions and qualitative analysis was undertaken using the Framework Method. The session impacted on students' knowledge and understanding of people with a learning disability. Students reported that they felt more comfortable and confident interacting with people with a learning disability. In addition, they reflected on their feelings about caring for people with a learning disability

    Disorders of sex development : insights from targeted gene sequencing of a large international patient cohort

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    Background: Disorders of sex development (DSD) are congenital conditions in which chromosomal, gonadal, or phenotypic sex is atypical. Clinical management of DSD is often difficult and currently only 13% of patients receive an accurate clinical genetic diagnosis. To address this we have developed a massively parallel sequencing targeted DSD gene panel which allows us to sequence all 64 known diagnostic DSD genes and candidate genes simultaneously. Results: We analyzed DNA from the largest reported international cohort of patients with DSD (278 patients with 46, XY DSD and 48 with 46, XX DSD). Our targeted gene panel compares favorably with other sequencing platforms. We found a total of 28 diagnostic genes that are implicated in DSD, highlighting the genetic spectrum of this disorder. Sequencing revealed 93 previously unreported DSD gene variants. Overall, we identified a likely genetic diagnosis in 43% of patients with 46, XY DSD. In patients with 46, XY disorders of androgen synthesis and action the genetic diagnosis rate reached 60%. Surprisingly, little difference in diagnostic rate was observed between singletons and trios. In many cases our findings are informative as to the likely cause of the DSD, which will facilitate clinical management. Conclusions: Our massively parallel sequencing targeted DSD gene panel represents an economical means of improving the genetic diagnostic capability for patients affected by DSD. Implementation of this panel in a large cohort of patients has expanded our understanding of the underlying genetic etiology of DSD. The inclusion of research candidate genes also provides an invaluable resource for future identification of novel genes

    Evaluating the Effects of SARS-CoV-2 Spike Mutation D614G on Transmissibility and Pathogenicity.

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    Global dispersal and increasing frequency of the SARS-CoV-2 spike protein variant D614G are suggestive of a selective advantage but may also be due to a random founder effect. We investigate the hypothesis for positive selection of spike D614G in the United Kingdom using more than 25,000 whole genome SARS-CoV-2 sequences. Despite the availability of a large dataset, well represented by both spike 614 variants, not all approaches showed a conclusive signal of positive selection. Population genetic analysis indicates that 614G increases in frequency relative to 614D in a manner consistent with a selective advantage. We do not find any indication that patients infected with the spike 614G variant have higher COVID-19 mortality or clinical severity, but 614G is associated with higher viral load and younger age of patients. Significant differences in growth and size of 614G phylogenetic clusters indicate a need for continued study of this variant

    Pratos e mais pratos: louças domésticas, divisões culturais e limites sociais no Rio de Janeiro, século XIX

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    Reply to ten comments on a paper published in the last issue of this journal. The discussion follows along six main lines: History museums, identity, ideology and the category of nation; the need of material collections and their modalities: patrimonial, operational, virtual; theater versus laboratory; visitors and their ambiguities; Public History: the museum and the academy.Resposta aos comentários de dez especialistas que contribuíram no debate de texto publicado no último número desta revista. A discussão orientou-se segundo seis tópicos principais: museus históricos, identidade, ideologia e a categoria de nação; a necessidade de acervos materiais e suas modalidades: acervo patrimonial, operacional, virtual; teatro versus laboratório; o público e suas ambigüidades; História Pública: o museu e a Academia

    Evaluating the Effects of SARS-CoV-2 Spike Mutation D614G on Transmissibility and Pathogenicity

    Get PDF
    Global dispersal and increasing frequency of the SARS-CoV-2 spike protein variant D614G are suggestive of a selective advantage but may also be due to a random founder effect. We investigate the hypothesis for positive selection of spike D614G in the United Kingdom using more than 25,000 whole genome SARS-CoV-2 sequences. Despite the availability of a large dataset, well represented by both spike 614 variants, not all approaches showed a conclusive signal of positive selection. Population genetic analysis indicates that 614G increases in frequency relative to 614D in a manner consistent with a selective advantage. We do not find any indication that patients infected with the spike 614G variant have higher COVID-19 mortality or clinical severity, but 614G is associated with higher viral load and younger age of patients. Significant differences in growth and size of 614G phylogenetic clusters indicate a need for continued study of this variant
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