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Evaluation of a complex intervention for depression in patients with lung cancer : the design, execution and results of a randomised controlled trialWalker, Jane January 2014 (has links)
The aim of this thesis was to develop and evaluate a complex intervention for major depression in patients with lung cancer. Major depression is a leading cause of disease burden worldwide and is particularly important in patients with lung cancer, not only because it is common in this poor prognosis cancer group but also because it substantially reduces the quality of the often short period of time that patients have left to live. The thesis describes a systematic review of the relevant research literature, the development of a complex intervention and a multi-centre randomised controlled trial. I found no trials, in my systematic review, that had evaluated the effectiveness of treatments for depression in patients with lung cancer. I did, however, find six trials of interventions intended to improve symptoms or quality of life in this patient group, the findings of which suggested that enhanced care approaches were more effective in reducing depressive symptoms than standard medical care. I developed the complex intervention ‘Depression Care for People with Lung Cancer’ (DCPLC) with 12 patients who had major depression and lung cancer. DCPLC was delivered by a team of cancer nurses and psychiatrists in collaboration with the patient’s GP. It included education about depression, antidepressant medication, psychological treatments (behavioural activation and problem solving therapy) and systematic progress monitoring. The trial comparing DCPLC with usual care included 142 patients. Patients who received DCPLC reported significantly lower average depression severity during their time in the trial, and better self-rated depression improvement, anxiety, quality of life, role functioning and perceived quality of depression care. The methodological limitations, relevant literature and implications of these findings for future research and for clinical practice are discussed.
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Analysis of Data Collected in Pilot Study of Residential Radon in DeKalb County in 2015.Chan, Sydney 13 May 2016 (has links)
Dajun DaiRadon is a colorless, odorless, naturally occurring gas. It is currently the second leading cause of lung cancer and the number one cause of lung cancer to non-smokers in the United States. DeKalb County offers free screening for radon for residents. However, screening rates vary across the county. This pilot study focused on 14 selected tracts within DeKalb County with relatively low levels of radon screening. Over 200 households were recruited and homes were tested for indoor radon concentrations on the lowest livable floor over an 8-week period from March – May 2016. Tract-level characteristics were examined to understand the varitations of race, income, education, and poverty status between the 14 selected tracts and all of DeKalb County. The 14 selected tracts were comparable to all of DeKalb County in most factors besides race. Radon was detected in 73% of the homes sample and 4% had levels above the EPA guideline of 4 pCi/L. Multi-variate linear regression was used to compare all housing construction characteristics with radon concentrations and suggested that having a basement was the strongest predictive factor for detectable and/or hazardous levels of radon. Radon screening can identify problems and spur home owners to remediate but low screening rates may impact the potential health impact of free screening programs. More research should be done to identify why screening rates vary in order to identify ways to enhance screening and reduce radon exposure in DeKalb County.
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The Role of Paladin in Endothelial Cell Signaling and AngiogenesisNitzsche, Anja January 2016 (has links)
Angiogenesis, the formation of new blood vessels from a pre-existing vasculature, is crucial during development and for many diseases including cancer. Despite tremendous progress in the understanding of the angiogenic process, many aspects are still not fully elucidated. Several attempts have been made to identify novel genes involved in endothelial cell biology and angiogenesis. Here we focused on Pald1, a recently identified, vascular-enriched gene encoding paladin. Our in vitro studies indicate that paladin is a lipid phosphatase catalyzing dephosphorylation of phosphatidylinositol phosphates, a process essential for endocytosis and intracellular vesicle trafficking. We confirmed paladin’s vascular expression pattern and revealed a shift from a broad endothelial cell expression during development to an arterial mural cell-restricted expression in several vascular beds in adult mice. Paladin expression in the lung, however, was not restricted to the vasculature, but was also observed in pneumocytes and myofibroblasts. Lungs of female, but not male, Pald1 null mice displayed an obstructive lung phenotype with increased alveolar air sacs that were already apparent early in the alveolarization process. Only endothelial cells, but not other main lung cell types, were affected by loss of paladin. Endothelial cell number was reduced in 4-week old mice, possibly due to increased endothelial turnover in Pald1 deficient lungs. Vascular defects were also found in the retina. Loss of paladin led to reduced retinal vascular outgrowth accompanied by a hyperdense and hypersprouting vascular front. Downstream signaling of the major angiogenic driver, vascular endothelial growth factor receptor 2 (VEGFR2) was sustained in Pald1 null mice, and VEGFR2 degradation was impaired. Furthermore, paladin inhibited endothelial cell junction stability and loss of paladin led to reduced vascular permeability. Whether the differences in VEGFR2 signaling and adherens junction stability are connected remains to be fully explored. The newly identified lipid phosphatase activity of paladin and its specific effects on VEGFR2 signaling and adherens junction stability indicate that paladin may be controlling the endocytic pathway.
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Genetic and expression analysis of candidate tumor loci in non-small cell lung cancerZhu, Hong, 朱紅 January 2005 (has links)
published_or_final_version / abstract / Pathology / Doctoral / Doctor of Philosophy
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Dynamic models for post-transplant patient monitoringBest, Nicola Grace January 1993 (has links)
No description available.
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Statistical methods for gamma mixtures of proportional hazards survival modelsChapman, Joanne Shirley January 2000 (has links)
No description available.
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COsub(2) transfer from blood in gas permeable tubes : Theory and experimentKhoo, G. T. January 1985 (has links)
No description available.
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Simpler methods of assessing respiratory function and their application in infancyDundas, Isobel January 2000 (has links)
No description available.
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The assessment of intra-pulmonary deposition of aerosols using multi-modality imagingConway, Joy Helen January 1996 (has links)
No description available.
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Nitrosative and oxidative stress in Nippostrongylus brasiliensis induced pulmonary inflammationMcNeil, Kathryn Suzanne January 1999 (has links)
No description available.
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