206 research outputs found

    Changing Patterns of Human Campylobacteriosis, England and Wales, 1990–2007

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    To explore hypotheses for age-related changes in the incidence of Campylobacter infections in England and Wales during 1990–2007, we analyzed electronic laboratory data. Disease incidence was reduced among children, and the greatest increase in risk was for those >60 years of age. Risk factors for campylobacteriosis in the elderly population should be identified

    Diagnosing onset of labor : a systematic review of definitions in the research literature

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    Background: The diagnosis of labor onset has been described as one of the most important judgments in maternity care. There is compelling evidence that the duration of both latent and active phase labor are clinically important and require consistent approaches to measurement. In order to measure the duration of labor phases systematically, we need standard definitions of their onset. We reviewed the literature to examine definitions of labor onset and the evidentiary basis provided for these definitions. Methods: Five electronic databases were searched using predefined search terms. We included English, French and German language studies published between January 1978 and March 2014 defining the onset of latent labor and/or active labor in a population of healthy women with term births. Studies focusing exclusively on induced labor were excluded. Results: We included 62 studies. Four ‘types’ of labor onset were defined: latent phase, active phase, first stage and unspecified. Labor onset was most commonly defined through the presence of regular painful contractions (71 % of studies) and/or some measure of cervical dilatation (68 % of studies). However, there was considerable discrepancy about what constituted onset of labor even within ‘type’ of labor onset. The majority of studies did not provide evidentiary support for their choice of definition of labor onset. Conclusions: There is little consensus regarding definitions of labor onset in the research literature. In order to avoid misdiagnosis of the onset of labor and identify departures from normal labor trajectories, a consistent and measurable definition of labor onset for each phase and stage is essential. In choosing standard definitions, the consequences of their use on rates of maternal and fetal morbidity must also be examined

    Slow implementation of mifepristone medical termination of pregnancy in Quebec, Canada: a qualitative investigation.

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    Objectives: Mifepristone for first-trimester medical termination of pregnancy (MTOP) became available in Quebec in 2018, one year after the rest of Canada. Using the theory of the Diffusion of Innovation (DOI) and the transtheoretical model of change (TTM), we investigated factors influencing the implementation of mifepristone MTOP in Quebec.Material and Methods: Semi-structured interviews were conducted with 37 Quebec physicians in early 2018. Deductive thematic analysis guided by the theory of DOI explored facilitators and barriers to physicians' adoption of mifepristone MTOP. We then classified participants into five stages of mifepristone adoption based on the TTM. Follow-up data collection one year later assessed further adoption.Results: At baseline, three physicians provided mifepristone MTOP (Maintenance) and two were about to start (Action). Thirteen physicians at Preparation and Advanced Contemplation stages intended to start while, within the Slow Contemplation, two intended to start and ten were unsure. Seven had no intention to provide mifepristone MTOP (Pre-Contemplation). Major reported barriers were: complexity of local health care organisations, medical policy restrictions, lack of support, and general uncertainty. One year later, ten physicians provided mifepristone MTOP (including three at baseline) and nine still intended to, while seventeen did not intend to start provision. Seven of sixteen participants (44%) who worked in TOP clinics at baseline were still not providing MTOP with mifepristone one year later.Conclusion: Despite ideological support, mifepristone MTOP uptake in Quebec is slow and laborious, mainly due to restrictive medical policies, vested interests in surgical provision and administrative inertia

    What are we missing? Risk behaviors among Arabâ American adolescents and emerging adults

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    Background and purposeResearch on Arabâ Americans as a distinct ethnic group is limited, especially when considering the health of Arabâ American youth. This study describes health risk (substance use, violence); health promotive behaviors (hope, spirituality); and sexual activity (oral, vaginal, anal sex) of Arabâ American adolescents and emerging adults (aged 15â 23) within their life context, as well as the association between these behaviors.MethodsA secondary analysis of data on a subset of Arabâ American participants obtained from a randomizedâ control trial was utilized to conduct mixed methods analyses. Qualitative analyses completed on the openâ ended questions used the constant comparative method for a subsample (n = 24) of participants. Descriptive quantitative analyses of survey data utilized bivariate analyses and stepwise logistic regression to explore the relation between risk behaviors and sexual activity among the full sample (n = 57).ConclusionsQualitative analyses revealed two groups of participants: (a) multiple risk behaviors and negative lifeâ events, and (b) minimal risk behaviors and positive lifeâ events. Quantitative analyses indicated older youth, smokers, and those with higher hope pathways were more likely to report vaginal sex.Implications for practiceThe unique cultural and social contexts of Arabâ American youth provide a framework for recommendations for the prevention of risk behaviors.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/134166/1/jaan12352.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/134166/2/jaan12352_am.pd

    Dispensing mifepristone for medical abortion in Canada: Pharmacists' experiences of the first year.

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    BACKGROUND: Mifepristone for medical abortion was first dispensed by community pharmacists in Canada directly to patients in January 2017. We asked about pharmacists' experiences over their first year dispensing mifepristone in order to evaluate the frequency of the new practice and assess availability in urban/rural pharmacies. METHODS: From August to December 2019, we invited 433 community pharmacists who had completed a baseline survey at least 1 year prior to participate in a follow-up online survey. We summarized categorical data using counts and proportions and conducted a qualitative thematic analysis of open-ended responses. RESULTS: Among 122 participants, 67.2% had dispensed the product, and 48.4% routinely stocked mifepristone. Pharmacists reported a mean of 26 and median of 3 (interquartile range, 1, 8) mifepristone prescriptions filled in their pharmacies in the previous year. Participants perceived that the benefits of making mifepristone available in pharmacies included increased abortion access for patients (n = 115; 94.3%), reduced pressure on the health care system (n = 104; 85.3%), increased rural and remote abortion access (n = 103; 84.4%) and increased interprofessional collaborations (n = 48; 39.3%). Few participants reported challenges to maintaining adequate stock of mifepristone, but these challenges included low demand (n = 24; 19.7%), short expiry dating (n = 12; 9.8%) and drug shortages (n = 8; 6.6%). The overwhelming majority, 96.7%, reported that their communities did not resist the provision of mifepristone by their pharmacy. INTERPRETATION: Participating pharmacists reported many benefits and very few barriers to stocking and dispensing mifepristone. Both urban and rural communities responded positively to enhanced access to mifepristone in their community. CONCLUSIONS: Mifepristone is well accepted by pharmacists within the primary care system in Canada

    Optimisation of sample preparation from primary mouse tissue to maintain RNA integrity for methods examining translational control

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    The protein output of different mRNAs can vary by two orders of magnitude; therefore, it is critical to understand the processes that control gene expression operating at the level of translation. Translatome-wide techniques, such as polysome profiling and ribosome profiling, are key methods for determining the translation rates occurring on specific mRNAs. These techniques are now widely used in cell lines; however, they are underutilised in tissues and cancer models. Ribonuclease (RNase) expression is often found to be higher in complex primary tissues in comparison to cell lines. Methods used to preserve RNA during lysis often use denaturing conditions, which need to be avoided when maintaining the interaction and position of the ribosome with the mRNA is required. Here, we detail the cell lysis conditions that produce high-quality RNA from several different tissues covering a range of endogenous RNase expression levels. We highlight the importance of RNA integrity for accurate determination of the global translation status of the cell as determined by polysome gradients and discuss key aspects to optimise for accurate assessment of the translatome from primary mouse tissue

    A case series study on the effect of Ebola on facility-based deliveries in rural Liberia

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    Abstract Background As communities’ fears of Ebola virus disease (EVD) in West Africa exacerbate and their trust in healthcare providers diminishes, EVD has the potential to reverse the recent progress made in promoting facility-based delivery. Using retrospective data from a study focused on maternal and newborn health, this analysis examined the influence of EVD on the use of facility-based maternity care in Bong Country, Liberia, which shares a boarder with Sierra Leone - near the epicenter of the outbreak. Methods Using a case series design, retrospective data from logbooks were collected at 12 study sites in one county. These data were then analyzed to determine women’s use of facility-based maternity care between January 2012 and October 2014. The primary outcome was the number of facility-based deliveries over time. The first suspected case of EVD in Bong County was reported on June 30, 2014. Heat maps were generated and the number of deliveries was normalized to the average number of deliveries during the full 12 months before the EVD outbreak (March 2013 – February 2014). Results Prior to the EVD outbreak, facility-based deliveries steadily increased in Bong County reaching an all-time high of over 500 per month at study sites in the first half of 2014 – indicating Liberia was making inroads in normalizing institutional maternal healthcare. However, as reports of EVD escalated, facility-based deliveries decreased to a low of 113 in August 2014. Conclusion Ebola virus disease has negatively impacted the use of facility-based maternity services, placing childbearing women at increased risk for morbidity and death.http://deepblue.lib.umich.edu/bitstream/2027.42/114384/1/12884_2015_Article_694.pd

    Salmo salar and Esox lucius full-length cDNA sequences reveal changes in evolutionary pressures on a post-tetraploidization genome

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    <p>Abstract</p> <p>Background</p> <p>Salmonids are one of the most intensely studied fish, in part due to their economic and environmental importance, and in part due to a recent whole genome duplication in the common ancestor of salmonids. This duplication greatly impacts species diversification, functional specialization, and adaptation. Extensive new genomic resources have recently become available for Atlantic salmon (<it>Salmo salar</it>), but documentation of allelic versus duplicate reference genes remains a major uncertainty in the complete characterization of its genome and its evolution.</p> <p>Results</p> <p>From existing expressed sequence tag (EST) resources and three new full-length cDNA libraries, 9,057 reference quality full-length gene insert clones were identified for Atlantic salmon. A further 1,365 reference full-length clones were annotated from 29,221 northern pike (<it>Esox lucius</it>) ESTs. Pairwise d<sub>N</sub>/d<sub>S </sub>comparisons within each of 408 sets of duplicated salmon genes using northern pike as a diploid out-group show asymmetric relaxation of selection on salmon duplicates.</p> <p>Conclusions</p> <p>9,057 full-length reference genes were characterized in <it>S. salar </it>and can be used to identify alleles and gene family members. Comparisons of duplicated genes show that while purifying selection is the predominant force acting on both duplicates, consistent with retention of functionality in both copies, some relaxation of pressure on gene duplicates can be identified. In addition, there is evidence that evolution has acted asymmetrically on paralogs, allowing one of the pair to diverge at a faster rate.</p
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