1,348 research outputs found

    Family history of prostate and colorectal cancer and risk of colorectal cancer in the Women's health initiative.

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    BackgroundEvidence suggests that risk of colorectal and prostate cancer is increased among those with a family history of the same disease, particularly among first-degree relatives. However, the aggregation of colorectal and prostate cancer within families has not been well investigated.MethodsAnalyses were conducted among participants of the Women's Health Initiative (WHI) observational cohort, free of cancer at the baseline examination. Subjects were followed for colorectal cancer through August 31st, 2009. A Cox-proportional hazards regression modeling approach was used to estimate risk of colorectal cancer associated with a family history of prostate cancer, colorectal cancer and both cancers among first-degree relatives of all participants and stratified by race (African American vs. White).ResultsOf 75,999 eligible participants, there were 1122 colorectal cancer cases diagnosed over the study period. A family history of prostate cancer alone was not associated with an increase in colorectal cancer risk after adjustment for confounders (aHR =0.94; 95% CI =0.76, 1.15). Separate analysis examining the joint impact, a family history of both colorectal and prostate cancer was associated with an almost 50% increase in colorectal cancer risk (aHR = 1.48; 95% CI = 1.04, 2.10), but similar to those with a family history of colorectal cancer only (95% CI = 1.31; 95% CI = 1.11, 1.54).ConclusionsOur findings suggest risk of colorectal cancer is increased similarly among women with colorectal cancer only and among those with both colorectal and prostate cancer diagnosed among first-degree family members. Future studies are needed to determine the relative contribution of genes and shared environment to the risk of both cancers

    Barriers and Drivers to Bus Electrification: The Transit Agency\u27s Perspective

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    Battery-electric buses (BEBs) have become increasingly common in recent years, as transit agencies around the world seek to reduce their carbon emissions. Although many agencies and governments have set ambitious climate goals pushing for increased adoption of BEBs, some agencies face difficulty transitioning their fleets to this technology. This study seeks to understand the challenges faced by these agencies, as well as their motivations for adopting BEBs. Researchers conducted a series of interviewers with twelve transit leaders representing ten transit agencies who were leading BEB adoption programs, asking questions about their experiences trying to implement this technology. The interviewees stated that their most significant barrier continues to be the high up-front costs involved in purchasing BEBs and the associated infrastructure. The agencies also expressed concerns about the operational capabilities of BEBs compared to their diesel equivalents. Agencies did recognize the environmental benefits of BEBs, with most citing environmental goals as the primary driver of electrification

    Electrospun Spiderskin Bandage for Epidermal Protection and Recovery

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    Spider silk is one of nature\u27s most promising biomaterial s for a variety of applications, however, due to the inability to farm spiders, transgenic hosts are required for large-scale production. With the unique combination of strength, elasticity, and biocompatibility, spider silk has an incredible potential for use in the human body. This study was conducted to merge two major applications of spider silk for the creation of a novel bandaging product. Electrospinning technology was utilized to create a spider silk/polymer bandage matrix to be applied with an aqueous spider silk skin adhesive. In designing the bandaging matrix , the mechanical properties of the electrospun silk were evaluated against commercially-available product s and known values of human skin. The chosen formulation had physical properties more comparable human skin than commercially-available products. The aqueous adhesive was tested in conjunction with the electro spun matrix for its adhesion and found comparable to commercial products. The durability of the bandage was tested via cyclic stresses and found analogous to commercial products. The common antimicrobial chlorhexidine was incorporated into the adhesive and had a release profile lasting about 4 days. With this incorporation into the aqueous adhesive, the adhesive can be reapplied to provide additional antimicrobial protection, a necessity in the healthcare industry. The bandaging showed no signs of inhibiting mammalian cell proliferation under cytotoxicity testing. The final product, deemed SpiderSkin, presents a unique bandaging solution capable of providing a healthy environment for the regeneration of epidermal tissue, while protecting the wound from outside infection , and providing mechanical stability similar to that of human skin

    Comparison of breast and bowel cancer screening uptake patterns in a common cohort of South Asian women in England

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    Background: Inequalities in uptake of cancer screening by ethnic minority populations are well documented in a number of international studies. However, most studies to date have explored screening uptake for a single cancer only. This paper compares breast and bowel cancer screening uptake for a cohort of South Asian women invited to undertake both, and similarly investigates these women's breast cancer screening behaviour over a period of fifteen years. Methods: Screening data for rounds 1, 2 and 5 (1989-2004) of the NHS breast cancer screening programme and for round 1 of the NHS bowel screening pilot (2000-2002) were obtained for women aged 50-69 resident in the English bowel screening pilot site, Coventry and Warwickshire, who had been invited to undertake breast and bowel cancer screening in the period 2000-2002. Breast and bowel cancer screening uptake levels were calculated and compared using the chi-squared test. Results: 72,566 women were invited to breast and bowel cancer screening after exclusions. Of these, 3,539 were South Asian and 69,027 non-Asian; 18,730 had been invited to mammography over the previous fifteen years (rounds 1 to 5). South Asian women were significantly less likely to undertake both breast and bowel cancer screening; 29.9% (n = 1,057) compared to 59.4% (n = 40,969) for non-Asians (p < 0.001). Women in both groups who consistently chose to undertake breast cancer screening in rounds 1, 2 and 5 were more likely to complete round 1 bowel cancer screening. However, the likelihood of completion of bowel cancer screening was still significantly lower for South Asians; 49.5% vs. 82.3% for non-Asians, p < 0.001. South Asian women who undertook breast cancer screening in only one round were no more likely to complete bowel cancer screening than those who decided against breast cancer screening in all three rounds. In contrast, similar women in the non-Asian population had an increased likelihood of completing the new bowel cancer screening test. The likelihood of continued uptake of mammography after undertaking screening in round 1 differed between South Asian religio-linguistic groups. Noticeably, women in the Muslim population were less likely to continue to participate in mammography than those in other South Asian groups. Conclusions: Culturally appropriate targeted interventions are required to reduce observed disparities in cancer screening uptakes

    Associations Between Methylation of Paternally Expressed Gene 3 (PEG3), Cervical Intraepithelial Neoplasia and Invasive Cervical Cancer.

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    Cytology-based screening for invasive cervical cancer (ICC) lacks sensitivity and specificity to discriminate between cervical intraepithelial neoplasia (CIN) likely to persist or progress from cases likely to resolve. Genome-wide approaches have been used to identify DNA methylation marks associated with CIN persistence or progression. However, associations between DNA methylation marks and CIN or ICC remain weak and inconsistent. Between 2008-2009, we conducted a hospital-based, case-control study among 213 Tanzania women with CIN 1/2/3 or ICC. We collected questionnaire data, biopsies, peripheral blood, cervical scrapes, Human papillomavirus (HPV) and HIV-1 infection status. We assessed PEG3 methylation status by bisulfite pyrosequencing. Multinomial logistic regression was used to estimate odds ratios (OR) and confidence intervals (CI 95%) for associations between PEG3 methylation status and CIN or ICC. After adjusting for age, gravidity, hormonal contraceptive use and HPV infection, a 5% increase in PEG3 DNA methylation was associated with increased risk for ICC (OR = 1.6; 95% CI 1.2-2.1). HPV infection was associated with a higher risk of CIN1-3 (OR = 15.7; 95% CI 5.7-48.6) and ICC (OR = 29.5, 95% CI 6.3-38.4). Infection with high risk HPV was correlated with mean PEG3 differentially methylated regions (DMRs) methylation (r = 0.34 p<0.0001), while the correlation with low risk HPV infection was weaker (r = 0.16 p = 0.047). Although small sample size limits inference, these data support that PEG3 methylation status has potential as a molecular target for inclusion in CIN screening to improve prediction of progression. Impact statement: We present the first evidence that aberrant methylation of the PEG3 DMR is an important co-factor in the development of Invasive cervical carcinoma (ICC), especially among women infected with high risk HPV. Our results show that a five percent increase in DNA methylation of PEG3 is associated with a 1.6-fold increase ICC risk. Suggesting PEG3 methylation status may be useful as a molecular marker for CIN screening to improve prediction of cases likely to progress

    How Children Describe Negative Adoption Experiences

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    Adoption faces stigmas from society which affects peoples\u27 perceptions of adoptees, their birth parents, and adoptive parent s; one of the most prominent being that adoption is the second best route to getting children (Baxter, Norwood, Asbury, & Scharp , 2014). Adoption success is mixed with some adapting well, while others have negative experience s. Studying themes about how and why negative adoption experiences happen could be beneficial to preventing them in the future. There is a unique perspective between parents and children and so the central research question for this study is: how do children describe their negative adoption experiences? Facebook, adoption comments were analyzed from January 2017-November 2018 on an adoption dedicated page. The comments were coded and analyzed for themes that reappeared that could indicate negative adoption experiences. The posts revealed themes including loss of family or identity, lies, rejection, and rights to birth records and knowledge. Overall, these themes illuminate negative adoption experiences and hold important implications for practitioners and counselors

    Utah Mental Health Professionals\u27 Recommendations for Working with Youth at Risk for Suicide

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    Suicide has immediate and long-term negative effects on surviving family members and adverse effects in the school and community. Suicide rates for children and adolescents have increased in the United States since 2009. As part of suicide prevention efforts, information about risk factors and warning signs are typically addressed in schools, private organizations, and communities. In addition to academic literature for professional audiences, various therapeutic resources are available to assist those who grieve the suicide of a loved one. In particular, practical and easy-to-implement interventions are needed by those who offer support to suicidal individuals and survivors of suicide. Practical resources are needed to address suicide prevention, intervention, and postvention needs. This study is based on a questionnaire that was given to 250 registered individuals at an annual state suicide prevention training conference. Of those attending, 60 (24%) completed the questionnaire. Participants who did not have experience working with suicidal youth did not participate, so the actual participation rate was influenced by this factor. Questions explored the recommendations of mental health professionals (N=60) who worked with (a) suicidal youth, (b) siblings of youth who completed suicide, and/or (c) youth whose parent completed suicide. More specifically this study investigated specific strategies and resources for working with these three specific groups of survivors. Findings from this study indicated that mental health professionals recommend a variety of suicide prevention resources and strategies such as implementing evidenced-based prevention programs, accessing community resources, offering individual and group counseling for survivors, involving or creating support systems, and listening to the affected youth. Also, recommended therapeutic approaches should include an action plan where students are able to receive appropriate mental health services. Based on this study, mental health professionals may be more effective as they acquaint themselves with available resources such as counselors, school psychologists, and community services to comprehensively care for struggling individuals. Mental health professionals, educators, and staff members should obtain relevant information and utilize effective intervention models in order to better address the prevention, intervention, and postvention needs of surviving individuals.Recommendations are made for future research in identifying the combination of resources that are most helpful. Recommendations are also made regarding specific content and training strategies to more effectively prepare and equip professionals to engage more fully in effective and supportive suicide prevention efforts

    Wild Mustangs

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    A mustang is a wild horse, a broomtail, a cayuse, a fantail, or any of several other terms cowboys use to describe this tame animal gone wild. To you, my children, and your children and theirs, I give this book of stories about mustangs. The action and excitement I experienced while capturing mustangs are described here. Using helicopters today to run down wild horses removes both the thrill and sport in their capture. It was surely more exciting and certainly a greater challenge to pit a saddle horse and rider against the fear and speed of a wild horse. The better conditioning of the saddle horse and the knowledge the man had of his quarry were the main advantages the cowboy had over his wild friend, the mustang. I call the mustang a friend to the cowboy because hundreds of these animals were captured and, after breaking, became fine saddle horses. When I rode for the Utah Construction Company, we had nearly two hundred saddle horses in the cavy during the summer work season until the cattle were on winter feed grounds or desert range. Over half of these horses were captured mustangs. Nearly sixty mustangs-potential saddle horses-were captured each year, animals ranging from four to seven years old with few exceptions. A mustang stud was not considered too old to break to ride until he was past seven, and then only because his useful life span was shortened by age. The prime of life for a working saddle horse ranges from about seven to twelve years. I hope you can feel some of the thrills I experienced with the mustangs as you read the following stories.https://digitalcommons.usu.edu/usupress_pubs/1171/thumbnail.jp

    Testing innovative strategies to reduce the social gradient in the uptake of bowel cancer screening: a programme of four qualitatively enhanced randomised controlled trial

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    Background: Bowel cancer screening reduces cancer-specific mortality. There is a socioeconomic gradient in the uptake of the English NHS Bowel Cancer Screening Programme (BCSP), which may lead to inequalities in cancer outcomes. Objective: To reduce socioeconomic inequalities in uptake of the NHS BCSP’s guaiac faecal occult blood test (gFOBt) without compromising uptake in any socioeconomic group. Design: Workstream 1 explored psychosocial determinants of non-uptake of gFOBt in focus groups and interviews. Workstream 2 developed and tested four theoretically based interventions: (1) ‘gist’ information, (2) a ‘narrative’ leaflet, (3) ‘general practice endorsement’ (GPE) and (4) an ‘enhanced reminder’ (ER). Workstream 3 comprised four national cluster randomised controlled trials (RCTs) of the cost-effectiveness of each intervention. Methods: Interventions were co-designed with user panels, user tested using interviews and focus groups, and piloted with postal questionnaires. RCTs compared ‘usual care’ (existing NHS BCSP invitations) with usual care plus each intervention. The four trials tested: (1) ‘gist’ leaflet (n = 163,525), (2) ‘narrative’ leaflet (n = 150,417), (3) GPE on the invitation letter (n = 265,434) and (4) ER (n = 168,480). Randomisation was based on day of mailing of the screening invitation. The Index of Multiple Deprivation (IMD) score associated with each individual’s home address was used as the marker of socioeconomic circumstances (SECs). Change in the socioeconomic gradient in uptake (interaction between treatment group and IMD quintile) was the primary outcome. Screening uptake was defined as the return of a gFOBt kit within 18 weeks of the invitation that led to a ‘definitive’ test result of either ‘normal’ (i.e. no further investigation required) or ‘abnormal’ (i.e. requiring referral for further testing). Difference in overall uptake was the secondary outcome. Results: The gist and narrative trials showed no effect on the SECs gradient or overall uptake (57.6% and 56.7%, respectively, compared with 57.3% and 58.5%, respectively, for usual care; all p-values > 0.05). GPE showed no effect on the gradient (p = 0.5) but increased overall uptake [58.2% vs. 57.5% in usual care, odds ratio (OR) = 1.07, 95% confidence interval (CI) 1.04 to 1.10; p < 0.0001]. ER showed a significant interaction with SECs (p = 0.005), with a stronger effect in the most deprived IMD quintile (14.1% vs. 13.3% in usual care, OR = 1.11, 95% CI 1.04 to 1.20; p = 0.003) than the least deprived (34.7% vs. 34.9% in usual care OR = 1.00, 95% CI 0.94 to 1.06; p = 0.98), and higher overall uptake (25.8% vs. 25.1% in usual care, OR = 1.07, 95% CI 1.03 to 1.11; p = 0.001). All interventions were inexpensive to provide. Limitations: In line with NHS policy, the gist and narrative leaflets supplemented rather than replaced existing NHS BCSP information. This may have undermined their effect. Conclusions: Enhanced reminder reduced the gradient and modestly increased overall uptake, whereas GPE increased overall uptake but did not reduce the gradient. Therefore, given their effectiveness and very low cost, the findings suggest that implementation of both by the NHS BCSP would be beneficial. The gist and narrative results highlight the challenge of achieving equitable delivery of the screening offer when all communication is written; the format is universal and informed decision-making mandates extensive medical information. Future work: Socioculturally tailored research to promote communication about screening with family and friends should be developed and evaluated. Trial registration: Current Controlled Trials ISRCTN74121020. Funding: This project was funded by the National Institute for Health Research (NIHR) Programme Grants for Applied Research programme and will be published in full in Programme Grants for Applied Research; Vol. 5, No. 8. See the NIHR Journals Library website for further project information
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