| 1. |
- Gustafson, Lars, et al.
(författare)
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A factor analytic approach to symptom patterns in dementia.
- 2010
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Ingår i: International Journal of Alzheimer's Disease. - : Hindawi Limited. - 2090-0252 .- 2090-8024.
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Tidskriftsartikel (refereegranskat)abstract
- Previous publications have shown a high diagnostic sensitivity and specificity of three short clinical rating scales for Alzheimer's disease (AD), frontotemporal dementia (FTD), and vascular dementia (VaD) validated against neuropathological (NP) diagnoses. In this study, the aim was to perform an exploratory factor analysis of the items in these clinical rating scales. The study included 190 patients with postmortem diagnoses of AD (n = 74), VaD (n = 33), mixed AD/VaD (n = 31), or FTD (n = 52). The factor analysis produced three strong factors. Factor 1 contained items describing cerebrovascular disease, similar to the Hachinski Ischemic Score. Factor 2 enclosed major clinical characteristics of FTD, and factor 3 showed a striking similarity to the AD scale. A fourth symptom cluster was described by perception and expression of emotions. The factor analyses strongly support the construct validity of the diagnostic rating scales.
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| 2. |
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| 3. |
- Moll, Guido, et al.
(författare)
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Do Cryopreserved Mesenchymal Stromal Cells Display Impaired Immunomodulatory and Therapeutic Properties?
- 2014
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Ingår i: Stem Cells. - : Oxford University Press (OUP). - 1066-5099 .- 1549-4918. ; 32:9, s. 2430-2442
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Tidskriftsartikel (refereegranskat)abstract
- We have recently reported that therapeutic mesenchymal stromal cells (MSCs) have low engraftment and trigger the instant blood mediated inflammatory reaction (IBMIR) after systemic delivery to patients, resulting in compromised cell function. In order to optimize the product, we compared the immunomodulatory, blood regulatory, and therapeutic properties of freeze-thawed and freshly harvested cells. We found that freeze-thawed MSCs, as opposed to cells harvested from continuous cultures, have impaired immunomodulatory and blood regulatory properties. Freeze-thawed MSCs demonstrated reduced responsiveness to proinflammatory stimuli, an impaired production of anti-inflammatory mediators, increased triggering of the IBMIR, and a strong activation of the complement cascade compared to fresh cells. This resulted in twice the efficiency in lysis of thawed MSCs after 1 hour of serum exposure. We found a 50% and 80% reduction in viable cells with freshly detached as opposed to thawed in vitro cells, indicating a small benefit for fresh cells. In evaluation of clinical response, we report a trend that fresh cells, and cells of low passage, demonstrate improved clinical outcome. Patients treated with freshly harvested cells in low passage had a 100% response rate, twice the response rate of 50% observed in a comparable group of patients treated with freeze-thawed cells at higher passage. We conclude that cryobanked MSCs have reduced immunomodulatory and blood regulatory properties directly after thawing, resulting in faster complement-mediated elimination after blood exposure. These changes seem to be paired by differences in therapeutic efficacy in treatment of immune ailments after hematopoietic stem cell transplantation.
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| 4. |
- Rose, Peter W., et al.
(författare)
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Development of a survey instrument to investigate the primary care factors related to differences in cancer diagnosis between international jurisdictions
- 2014
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Ingår i: BMC Family Practice. - : BioMed Central. - 1471-2296. ; 15, s. 1-8
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Tidskriftsartikel (refereegranskat)abstract
- Background: Survival rates following a diagnosis of cancer vary between countries. The International Cancer Benchmarking Partnership (ICBP), a collaboration between six countries with primary care led health services, was set up in 2009 to investigate the causes of these differences. Module 3 of this collaboration hypothesised that an association exists between the readiness of primary care physicians (PCP) to investigate for cancer - the 'threshold' risk level at which they investigate or refer to a specialist for consideration of possible cancer - and survival for that cancer (lung, colorectal and ovarian). We describe the development of an international survey instrument to test this hypothesis. Methods: The work was led by an academic steering group in England. They agreed that an online survey was the most pragmatic way of identifying differences between the jurisdictions. Research questions were identified through clinical experience and expert knowledge of the relevant literature. A survey comprising a set of direct questions and five clinical scenarios was developed to investigate the hypothesis. The survey content was discussed and refined concurrently and repeatedly with international partners. The survey was validated using an iterative process in England. Following validation the survey was adapted to be relevant to the health systems operating in other jurisdictions and translated into Danish, Norwegian and Swedish, and into Canadian and Australian English. Results: This work has produced a survey with face, content and cross cultural validity that will be circulated in all six countries. It could also form a benchmark for similar surveys in countries with similar health care systems. Conclusions: The vignettes could also be used as educational resources. This study is likely to impact on healthcare policy and practice in participating countries.
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| 5. |
- Y Banaem, Hossein, et al.
(författare)
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Brain tumor modeling : glioma growth and interaction with chemotherapy
- 2011
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Ingår i: International Conference on Graphic and Image Processing (ICGIP 2011). - : SPIE. ; 8285
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Konferensbidrag (refereegranskat)abstract
- In last decade increasingly mathematical models of tumor growths have been studied, particularly on solid tumors which growth mainly caused by cellular proliferation. In this paper we propose a modified model to simulate the growth of gliomas in different stages. Glioma growth is modeled by a reaction-advection-diffusion. We begin with a model of untreated gliomas and continue with models of polyclonal glioma following chemotherapy. From relatively simple assumptions involving homogeneous brain tissue bounded by a few gross anatomical landmarks (ventricles and skull) the models have been expanded to include heterogeneous brain tissue with different motilities of glioma cells in grey and white matter. Tumor growth is characterized by a dangerous change in the control mechanisms, which normally maintain a balance between the rate of proliferation and the rate of apoptosis (controlled cell death). Result shows that this model closes to clinical finding and can simulate brain tumor behavior properly.
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| 6. |
- Novotny, Ann, 1982, et al.
(författare)
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Is acetylcholine a signaling molecule for human colon cancer progression?
- 2011
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Ingår i: Scandinavian Journal of Gastroenterology. - : Informa UK Limited. - 0036-5521 .- 1502-7708. ; 46:4, s. 446-455
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Tidskriftsartikel (refereegranskat)abstract
- Objective. Non-neuronal acetylcholine (ACh) has been suggested to be a mediator for the development of various types of cancer. We analyzed a possible role for this molecule in carcinogenesis and/or progression of human colon cancer, in patient biopsies harvested from the colon during surgery. We addressed whether ACh synthesis (by choline acetyltransferase) and/or degradation (by ACh esterase), as well as the expression of the alpha alpha 7-subtype of the nicotinic ACh receptors, and the peptide ligand at the alpha alpha 7 receptors, secreted mammalian Ly6/urokinase-type plasminogen activator receptor-related protein-1, respectively, are deranged in tumor tissue as compared with macroscopically tumor-free colon tissue. Methods. A total of 38 patients were grouped for analysis based on their respective Dukes stage (either Dukes A ++ B or C ++ D). A mucosal tissue sample was harvested from macroscopically tumor-free colon tissue (i.e. control tissue), as well as from the tumor, and protein lysates were prepared for quantitative Western blotting. Full-thickness specimens were taken for immunohistochemistry. Results. For all the above named markers, there was a significant difference between control and tumor tissue with regard to protein levels, and there was, in addition, a significant difference in protein levels between the Dukes A ++ B and C ++ D groups. Conclusion. The current findings may suggest a role for ACh in colon carcinogenesis/cancer progression; the data obtained could have prognostic and/or therapeutic significance for this disease.
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| 7. |
- Friedman, Ran, et al.
(författare)
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Molecular modelling and simulations in cancer research
- 2013
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Ingår i: Biochimica et Biophysica Acta. CR. Reviews on Cancer. - : Elsevier BV. - 0304-419X .- 1879-2561. ; 1836:1, s. 1-14
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Forskningsöversikt (refereegranskat)abstract
- The complexity of cancer and the vast amount of experimental data available have made computer-aided approaches necessary. Biomolecular modelling techniques are becoming increasingly easier to use, whereas hardware and software are becoming better and cheaper. Cross-talk between theoretical and experimental scientists dealing with cancer-research from a molecular approach, however, is still uncommon. This is in contrast to other fields, such as amyloid-related diseases, where molecular modelling studies are widely acknowledged. The aim of this review paper is therefore to expose some of the more common approaches in molecular modelling to cancer scientists in simple terms, illustrating success stories while also revealing the limitations of computational studies at the molecular level.
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| 8. |
- Oliva, Delmy, 1967-, et al.
(författare)
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Variations in self-reported nausea, vomiting and well-being during the first 10 days postchemotherapy in women with breast cancer
- 2014
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Ingår i: Clinical Journal of Oncology Nursing. - Pittsburgh : Oncology Nursing Society. - 1092-1095 .- 1538-067X. ; 18:2, s. E32-E36
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Tidskriftsartikel (refereegranskat)abstract
- Women with breast cancer undergoing chemotherapy experience nausea and vomiting, both common symptoms affecting quality of life. The aim of the current study was to describe how nausea, vomiting, and well-being vary during the first 10 days after chemotherapy in women with breast cancer. A pilot study with a repeated-measurements design was conducted at a Swedish county hospital where 39 women with breast cancer treated with adjuvant chemotherapy were observed. A structured 10-day diary was used for data collection. Of the 39 women in the study, 33 experienced nausea and 6 also experienced vomiting after chemotherapy. Changes in well-being as a result of nausea or vomiting during any part of the day, as well as distress for other reasons, were reported. Well-being also varied among the individuals. The pattern of change in experienced levels of well-being was not homogeneous, nor did it move in any certain direction. The results of this study show that an individualized treatment approach is required to better meet individual women’s needs.
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| 9. |
- Darcy, Laura, et al.
(författare)
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The process of striving for an ordinary, everyday life, in young children living with cancer, at six months and one year post diagnosis
- 2014
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Ingår i: European Journal of Oncology Nursing. - Amsterdam : Elsevier. - 1462-3889 .- 1532-2122. ; 18:6, s. 605-612
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: Health care focus is shifting from solely looking at surviving cancer to elements of attention relating to living with it on a daily basis.The young child's experiences are crucial to providing evidence based care. The aim of this study was to explore the everyday life of young children as expressed by the child and parents at six months and one year post diagnosis.METHODS: Interviews were conducted with children and their parents connected to a paediatric oncology unit in Southern Sweden. A qualitative content analysis of interview data from two time points, six months and one year post diagnosis, was carried out.RESULTS: The process of living with cancer at six months and at one year post diagnosis revealed the child's striving for an ordinary, everyday life. Experiences over time of gaining control, making a normality of the illness and treatment and feeling lonely were described.CONCLUSION: Nurses have a major role to play in the process of striving for a new normal in the world post-diagnosis, and provide essential roles by giving the young child information, making them participatory in their care and encouraging access to both parents and peers. Understanding this role and addressing these issues regularly can assist the young child in the transition to living with cancer. Longitudinal studies with young children are vital in capturing their experiences through the cancer trajectory and necessary to ensure quality care.
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| 10. |
- Sandgren, Anna, 1970-, et al.
(författare)
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Symptoms, care needs and diagnosis in palliative cancer patients in acute care hospitals: A 5-year follow-up survey
- 2010
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Ingår i: Acta Oncologica. - : Informa Healthcare. - 0284-186X .- 1651-226X. ; 49:4, s. 460-466(7)
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Tidskriftsartikel (refereegranskat)abstract
- INTRODUCTION: Palliative cancer care in acute hospitals is scarcely studied. We therefore described and compared symptoms, care needs and types of cancer sites in 2002 compared to 2007 and analysed the relationships between these factors. METHODS: The study was population-based with a cross-sectional design and was carried out in medical, surgical and oncology wards in two acute care hospitals with no advanced palliative home care service. In 2002, 82 one-day-inventories were done (1 352 patients) compared to 142 one-day-inventories in 2007 (2 972 patients). Symptoms, care needs and cancer site were registered according to a questionnaire. Multiple logistic regression models were used to analyse associations between symptoms, care needs and cancer site. RESULTS: The proportion of palliative cancer patients had decreased during a five year period (14% vs. 11%, p<0.01). The patients were older in 2007 (74 vs. 70 years, p<0.001) and had more symptoms and care needs per patient (2.6 vs. 1.6, p<0.001). The most common symptoms were pain and deterioration and the most common cancer sites were prostate and colorectal cancer in both samples. Associations between symptoms, care needs and cancer site were mostly weak. Deterioration was associated with colorectal cancer, whereas pain was not associated with any specific cancer site. In haematological malignancies there was a high occurrence of infections and a high need of blood transfusions and infusions. Stomach/oesophagus cancers were significantly associated with nausea, nutritional problems and need of infusions while unknown primary malignancies were associated with abdominal surgery and infusions. DISCUSSION: Although we do not know all the causes for hospitalization, this study indicates that more focus should be on the symptoms instead of the specific cancer diagnosis. The findings also indicate that many palliative cancer patients' problems would be suitable for advanced palliative home care instead of acute hospital care.
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