53 research outputs found
Genome-wide location analysis and expression studies reveal a role for p110 CUX1 in the activation of DNA replication genes
Proteolytic processing of the CUX1 transcription factor generates an isoform, p110 that accelerates entry into S phase. To identify targets of p110 CUX1 that are involved in cell cycle progression, we performed genome-wide location analysis using a promoter microarray. Since there are no antibodies that specifically recognize p110, but not the full-length protein, we expressed physiological levels of a p110 isoform with two tags and purified chromatin by tandem affinity purification (ChAP). Conventional ChIP performed on synchronized populations of cells confirmed that p110 CUX1 is recruited to the promoter of cell cycle-related targets preferentially during S phase. Multiple approaches including silencing RNA (siRNA), transient infection with retroviral vectors, constitutive expression and reporter assays demonstrated that most cell cycle targets are activated whereas a few are repressed or not affected by p110 CUX1. Functional classes that were over-represented among targets included DNA replication initiation. Consistent with this finding, constitutive expression of p110 CUX1 led to a premature and more robust induction of replication genes during cell cycle progression, and stimulated the long-term replication of a plasmid bearing the oriP replicator of Epstein Barr virus (EBV).The pc3oriPE plasmid and helpful advices were
kindly provided by Dr Lori Frappier. A.N. is the recipient
of a scholarship from the Fonds de la Recherche en Sante´
du Québec. C.V. is the recipient of a studentship from the
McGill University Cancer Consortium Training Grant in
Cancer Research (sponsored by CIHR). F.R. holds a new
investigator award from the CIHR. This research was
supported by grant No. 014288 from the Canadian Cancer
Society to A.N. and a grant from Genome Canada/
Génome Québec to F.R and A.N. Funding to pay the
Open Access publication charges for this article was
provided by grant No. 014288 from the Canadian Cancer
Society to A.N
An exploration of nonprofit governance configurations
ix, 95 leaves ; 29 cmThere has been limited research on the characteristics inside the nonprofit (NP) boardroom. Much of the prescriptive NP governance literature is based on for-profit (FP) assumptions. Following a contingency approach, this multiple case-study of two Alberta organizations looks into the NP boardroom to observe the board characteristics alongside organizational and environmental contexts as proposed in a framework by Bradshaw (2009). To build on the proposed framework, this study also explored the combination of internal and external social capital. Using a pattern-matching analysis, support was found for the theorized board characteristic and social capital propositions. While limited by the cross-sectional and exploratory nature, the findings support future research. Future studies can explore the implications of such characteristics and contingencies on board effectiveness and organizational performance
Limits to modern contraceptive use among young women in developing countries: a systematic review of qualitative research
<p>Abstract</p> <p>Background</p> <p>Improving the reproductive health of young women in developing countries requires access to safe and effective methods of fertility control, but most rely on traditional rather than modern contraceptives such as condoms or oral/injectable hormonal methods. We conducted a systematic review of qualitative research to examine the limits to modern contraceptive use identified by young women in developing countries. Focusing on qualitative research allows the assessment of complex processes often missed in quantitative analyses.</p> <p>Methods</p> <p>Literature searches of 23 databases, including Medline, Embase and POPLINE<sup>®</sup>, were conducted. Literature from 1970–2006 concerning the 11–24 years age group was included. Studies were critically appraised and meta-ethnography was used to synthesise the data.</p> <p>Results</p> <p>Of the 12 studies which met the inclusion criteria, seven met the quality criteria and are included in the synthesis (six from sub-Saharan Africa; one from South-East Asia). Sample sizes ranged from 16 to 149 young women (age range 13–19 years). Four of the studies were urban based, one was rural, one semi-rural, and one mixed (predominantly rural). Use of hormonal methods was limited by lack of knowledge, obstacles to access and concern over side effects, especially fear of infertility. Although often more accessible, and sometimes more attractive than hormonal methods, condom use was limited by association with disease and promiscuity, together with greater male control. As a result young women often relied on traditional methods or abortion. Although the review was limited to five countries and conditions are not homogenous for all young women in all developing countries, the overarching themes were common across different settings and contexts, supporting the potential transferability of interventions to improve reproductive health.</p> <p>Conclusion</p> <p>Increasing modern contraceptive method use requires community-wide, multifaceted interventions and the combined provision of information, life skills, support and access to youth-friendly services. Interventions should aim to counter negative perceptions of modern contraceptive methods and the dual role of condoms for contraception and STI prevention should be exploited, despite the challenges involved.</p
Developmental signaling pathways regulating mammary stem cells and contributing to the etiology of triple-negative breast cancer
Quantitative Terrain Factors as Related to Soil Parent Materials and Their Engineering Classification
177 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1965.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD
Practical application of seminal plasma
Abstract not availableR.N. Kirkwood, M.L. Vadnais, M. Aba
Barriers to Implementation of Rapid and Point-of-Care Tests for Human Immunodeficiency Virus Infection: Findings From a Systematic Review (1996-2014)
Implementation of human immunodeficiency virus rapid and point-of-care tests (RDT/POCT) is understood to be impeded by many different factors that operate at 4 main levels-test devices, patients, providers, and health systems-yet a knowledge gap exists of how they act and interact to impede implementation. To fill this gap, and with a view to improving the quality of implementation, we conducted a systematic review.Five databases were searched, 16,672 citations were retrieved, and data were abstracted on 132 studies by 2 reviewers.Across 3 levels (ie, patients, providers, and health systems), a majority (59%, 112/190) of the 190 barriers were related to the integration of RDT/POCT, followed by test-device-related concern (ie, accuracy) at 41% (78/190). At the patient level, a lack of awareness about tests (15/54, 28%) and time taken to test (12/54, 22%) dominated. At the provider and health system levels, integration of RDT/POCT in clinical workflows (7/24, 29%) and within hospitals (21/34, 62%) prevailed. Accuracy (57/78, 73%) was dominant only at the device level.Integration barriers dominated the findings followed by test accuracy. Although accuracy has improved during the years, an ideal implementation could be achieved by improving the integration of RDT/POCT within clinics, hospitals, and health systems, with clear protocols, training on quality assurance and control, clear communication, and linkage plans to improve health outcomes of patients. This finding is pertinent for a future envisioned implementation and global scale-up of RDT/POCT-based initiatives
Genome-wide location analysis and expression studies reveal a role for p110 CUX1 in the activation of DNA replication genes
Reducing refugee mental health disparities: a community-based intervention to address postmigration stressors with African adults.
Refugees resettled in the United States have disproportionately high rates of psychological distress. Research has demonstrated the roles of postmigration stressors, including lack of meaningful social roles, poverty, unemployment, lack of environmental mastery, discrimination, limited English proficiency, and social isolation. We report a multimethod, within-group longitudinal pilot study involving the adaptation for African refugees of a community-based advocacy and learning intervention to address postmigration stressors. We found the intervention to be feasible, acceptable, and appropriate for African refugees. Growth trajectory analysis revealed significant decreases in participants\u27 psychological distress and increases in quality of life, and also provided preliminary evidence of intervention mechanisms of change through the detection of mediating relationships whereby increased quality of life was mediated by increases in enculturation, English proficiency, and social support. Qualitative data helped to support and explain the quantitative data. Results demonstrate the importance of addressing the sociopolitical context of resettlement to promote the mental health of refugees and suggest a culturally appropriate, and replicable model for doing so
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