256 research outputs found

    The association between hysterectomy and ovarian cancer risk: A population-based record-linkage study

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    Background: Recent studies have called into question the long-held belief that hysterectomy without oophorectomy protects against ovarian cancer. This population-based longitudinal record-linkage study aimed to explore this relationship, overall and by age at hysterectomy, time period, surgery type, and indication for hysterectomy. Methods: We followed the female adult Western Australian population (837 942 women) across a 27-year period using linked electoral, hospital, births, deaths, and cancer records. Surgery dates were determined from hospital records, and ovarian cancer diagnoses (n¼1640) were ascertained from cancer registry records.We used Cox regression to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for the association between hysterectomy and ovarian cancer incidence. Results: Hysterectomy without oophorectomy (n¼78 594) was not associated with risk of invasive ovarian cancer overall (HR ¼ 0.98, 95% CI ¼ 0.85 to 1.11) or with the most common serous subtype (HR ¼ 1.05, 95% CI ¼ 0.89 to 1.23). Estimates did not vary statistically significantly by age at procedure, time period, or surgical approach. However, among women with endometriosis (5.8%) or with fibroids (5.7%), hysterectomy was associated with substantially decreased ovarian cancer risk overall (HR ¼ 0.17, 95% CI ¼ 0.12 to 0.24, and HR ¼ 0.27, 95% CI ¼ 0.20 to 0.36, respectively) and across all subtypes. Conclusions: Our results suggest that for most women, having a hysterectomy with ovarian conservation is not likely to substantially alter their risk of developing ovarian cancer. However, our results, if confirmed, suggest that ovarian cancer risk reduction could be considered as a possible benefit of hysterectomy when making decisions about surgical management of endometriosis or fibroids

    Stoic opposition from Nero to Domitian

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    It has been argued that the so-called "Stoic opposition" to the Roman principate which characterized the period 54-96 A.D. was based on a doctrinal objection, derived from Stoic tenets, to the principle of hereditary succession to monarchy. Others have seen the opposition as the work of a group of Republicans who refused to recognize the legitimacy of any sole ruler."*" I reject both views. I suggest instead that the "opposition" of a small group of senatorial Stoics to the emperors of the mid- and late first century A.D. had its origin in traditional Roman and senatorial values, that the "opposition", such as it was, was exercised in a constitutional fashion and that its aims were vague and conservative

    Public Health Nursing Acceptance of the 5 A's Protocol for Prenatal Smoking Cessation

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    Oregon’s efforts in tobacco cessation have historically focused on the general population and have depended on quit line services as the primary intervention. The Oregon Smoke Free Mothers and Babies Program (SFMB) was developed in 2002 to focus on public health nurses and prenatal care providers who work with high risk pregnant women. It seeks to increase smoking cessation among low income and other high risk pregnant women by disseminating the U.S. Public Health Service best practices, the 5 A’s (Ask, Advise, Assess, Assist, Arrange) tobacco brief intervention protocol, to public health nurses and prenatal care providers. Interventions included teaching nurses the 5 A’s, how to use stages of change for pregnant quitters and providing them with client materials. We report the survey results gathered from nurses regarding their use of the 5 A’s. Nurses were questioned at 3 intervals: at the beginning of the SFMB project, 12 months later and 24 months later. While over 45 nurses in 10 counties were involved in the program, staff turnover and budget cuts affected program evaluation and analysis of the survey responses. As a result, only 10 nurses completed all three surveys. We found that, at baseline, all of the nurses were already performing the Ask and Advise components. The training resulted in a significant increase in the nurses using Assess (p<0.05) and Assist (p<0.05) both at 12 and 24 months. We also found that there was a statistically significant increase in the use of Arrange at 12 months (p<0.01) that was not sustained at 24 months (p=0.07). We conclude that public health nurses were already routinely doing Ask and Advise; our 5 A’s program was successful in improving Assess and Assist. More work is needed to understand why increases in Arrange were not sustained

    Children’s Poster Contest on Healthy Eating

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    Objective: To encourage children in 3rd, 4th, and 5th grades to learn about good nutrition and display their knowledge in an attractive poster. Method: A children’s poster contest was conducted through schools in the Washington, DC metro area in conjunction with the 2004 National Health Education Week’s campaign, “Healthy Eating – Every Bite Counts!”. Posters were judged on a 100 point scale, and six winners were chosen for each grade level. The children with the winning posters received cash prizes and were honored at an awards ceremony at the Society for Public Health Education’s (SOPHE) annual meeting. Results: Eligible entries were received from 76 students at 14 schools in the Arlington, VA and Washington, DC school districts. Almost all of the posters showed a good knowledge of nutrition by the students. Conclusion: National Health Education Week themes that are specific to children should encourage participation among schools, teachers, and parents. Partnerships offer possibilities for dissemination of public health education campaigns. A children’s poster contest about healthy eating in schools in the Washington, DC area was successful in gaining 76 entries from 14 schools, and children displayed a high level of knowledge of which foods were healthy for them and a high level of creativity and artistic talent

    A genomics-informed, SNP association study reveals FBLN1 and FABP4 as contributing to resistance to fleece rot in Australian Merino sheep

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    <p>Abstract</p> <p>Background</p> <p>Fleece rot (FR) and body-strike of Merino sheep by the sheep blowfly <it>Lucilia cuprina </it>are major problems for the Australian wool industry, causing significant losses as a result of increased management costs coupled with reduced wool productivity and quality. In addition to direct effects on fleece quality, fleece rot is a major predisposing factor to blowfly strike on the body of sheep. In order to investigate the genetic drivers of resistance to fleece rot, we constructed a combined ovine-bovine cDNA microarray of almost 12,000 probes including 6,125 skin expressed sequence tags and 5,760 anonymous clones obtained from skin subtracted libraries derived from fleece rot resistant and susceptible animals. This microarray platform was used to profile the gene expression changes between skin samples of six resistant and six susceptible animals taken immediately before, during and after FR induction. Mixed-model equations were employed to normalize the data and 155 genes were found to be differentially expressed (DE). Ten DE genes were selected for validation using real-time PCR on independent skin samples. The genomic regions of a further 5 DE genes were surveyed to identify single nucleotide polymorphisms (SNP) that were genotyped across three populations for their associations with fleece rot resistance.</p> <p>Results</p> <p>The majority of the DE genes originated from the fleece rot subtracted libraries and over-representing gene ontology terms included defense response to bacterium and epidermis development, indicating a role of these processes in modulating the sheep's response to fleece rot. We focused on genes that contribute to the physical barrier function of skin, including keratins, collagens, fibulin and lipid proteins, to identify SNPs that were associated to fleece rot scores.</p> <p>Conclusions</p> <p>We identified FBLN1 (fibulin) and FABP4 (fatty acid binding protein 4) as key factors in sheep's resistance to fleece rot. Validation of these markers in other populations could lead to vital tests for marker assisted selection that will ultimately increase the natural fleece rot resistance of Merino sheep.</p

    Linking Physical Activity to Breast Cancer via Sex Steroid Hormones, Part 2:The Effect of Sex Steroid Hormones on Breast Cancer Risk

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    We undertook a systematic review and appraised the evidence for an effect of circulating sex steroid hormones and sex hormone–binding globulin (SHBG) on breast cancer risk in pre- and postmenopausal women. Systematic searches identified prospective studies relevant to this review. Meta-analyses estimated breast cancer risk for women with the highest compared with the lowest level of sex hormones, and the DRMETA Stata package was used to graphically represent the shape of these associations. The ROBINS-E tool assessed risk of bias, and the GRADE system appraised the strength of evidence. In premenopausal women, there was little evidence that estrogens, progesterone, or SHBG were associated with breast cancer risk, whereas androgens showed a positive association. In postmenopausal women, higher estrogens and androgens were associated with an increase in breast cancer risk, whereas higher SHBG was inversely associated with risk. The strength of the evidence quality ranged from low to high for each hormone. Dose–response relationships between sex steroid hormone concentrations and breast cancer risk were most notable for post-menopausal women. These data support the plausibility of a role for sex steroid hormones in mediating the causal relationship between physical activity and the risk of breast cancer. See related reviews by Lynch et al., p. 11 and Swain et al., p. 1

    Multiple triangulation and collaborative research using qualitative methods to explore decision making in pre-hospital emergency care.

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    BACKGROUND: Paramedics make important and increasingly complex decisions at scene about patient care. Patient safety implications of influences on decision making in the pre-hospital setting were previously under-researched. Cutting edge perspectives advocate exploring the whole system rather than individual influences on patient safety. Ethnography (the study of people and cultures) has been acknowledged as a suitable method for identifying health care issues as they occur within the natural context. In this paper we compare multiple methods used in a multi-site, qualitative study that aimed to identify system influences on decision making. METHODS: The study was conducted in three NHS Ambulance Trusts in England and involved researchers from each Trust working alongside academic researchers. Exploratory interviews with key informants e.g. managers (n = 16) and document review provided contextual information. Between October 2012 and July 2013 researchers observed 34 paramedic shifts and ten paramedics provided additional accounts via audio-recorded 'digital diaries' (155 events). Three staff focus groups (total n = 21) and three service user focus groups (total n = 23) explored a range of experiences and perceptions. Data collection and analysis was carried out by academic and ambulance service researchers as well as service users. Workshops were held at each site to elicit feedback on the findings and facilitate prioritisation of issues identified. RESULTS: The use of a multi-method qualitative approach allowed cross-validation of important issues for ambulance service staff and service users. A key factor in successful implementation of the study was establishing good working relationships with academic and ambulance service teams. Enrolling at least one research lead at each site facilitated the recruitment process as well as study progress. Active involvement with the study allowed ambulance service researchers and service users to gain a better understanding of the research process. Feedback workshops allowed stakeholders to discuss and prioritise findings as well as identify new research areas. CONCLUSION: Combining multiple qualitative methods with a collaborative research approach can facilitate exploration of system influences on patient safety in under-researched settings. The paper highlights empirical issues, strengths and limitations for this approach. Feedback workshops were effective for verifying findings and prioritising areas for future intervention and research
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