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Browsing by department "Farmaceutiska fakulteten"

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  • Äijö, Nelli (2019)
    As the population becomes older and the amount of multimorbid patients increases, also health care spending increases. New care models are needed where patients’ needs are taken into consideration by providing preventive and patient-centred care. In Finland and internationally, new ways to treat elderly, chronically ill patients have been developed. One of the new models is the health and care plan model. This longitudinal, randomised, controlled trial studied the health and care plan model’s impact on healthcare costs, patients’ physical functioning and patients’ quality of life. The aim of the study was to study the cost-effectiveness of the health and care plan model compared to standard care practice. The goal of this study was to study if rational pharmacotherapy and self-management support can prevent the decline in physical functioning, the decline in quality of life and the increase in health service use and costs among elderly population. This study was conducted between 2014-2018 as a multi-disciplinary cooperation between Tornio health station, University of Helsinki Faculty of Pharmacy and Alatornio pharmacy. The patients in this study were over 75-year old, multimorbid, community dwelling, polypharmacy patients. The patients in the intervention group received an interview based clinical medication review and were formed a medication plan. Furthermore, the patients in the intervention group were planned a health and care plan that was combined with the medication plan into a comprehensive self-management plan in a multi-disciplinary meeting. A case manager was appointed for the patients in the intervention group and the case manager could be contacted by the patients in the intervention group at any point of the study if there arose a non-acute concern with the patient’s health. The patients in the control group were conducted a prescription review based on the information available in the electronic health records system and continued receiving the standard care practice. Cost and effectiveness data were gathered from the patients over the period of two years. The effectiveness data were gathered at Tornio health station where the intervention and control group’s quality of life was measured with the SF-36 generic quality of life measure and physical functioning was measured with Short Physical Performance Battery (SPPB). The quality of life data gathered with SF-36 were transformed into one preference based single index score SF-6D to calculate the quality of life and quality adjusted life years (QALY). Data about the use of health services were extracted from the electronic health records system and transformed into costs by using the national reference costs. At the beginning of the study, the intervention and control group were statistically significantly similar. During the two-year follow-up, no statistically or clinically significant differences were observed between the intervention and control group in their quality of life, in their physical functioning or in the costs of used health services. However, in the intervention group, the cost of used health services was on average 2 406 euros smaller than those of the control group’s during the two-year follow-up. The health and care plan model was cost-effective compared to standard care practice. The incremental cost-effectiveness ratio was -64 504 € per one QALY. Based on this study, it is recommended to support the self-management and physical functioning of the elderly with an intervention like health and care plan model to decrease the health care spending. The results of this study can be applied to Finnish healthcare system to decrease the health care spending of multimorbid, community dwelling and polypharmacy elderly patients. The use of real-world evidence increases the reliability of this study.
  • Valle, Jenni (2018)
    Gut inflammation and permeability is speculated to play a major role in the pathophysiology of several human diseases. Signs of a low-grade gut inflammation in patients with type 1 diabetes (T1D) have been found. Focus of this study was to understand the role of gut inflammation and increased gut permeability in the development of diabetic complications, especially nephropathy. Approximately, one-third of Finnish patients with T1D develop kidney disease during their lifetime. Inflammatory mechanisms may have an essential role in the pathophysiology of the disease. Lipopolysaccharide, LPS, is found in the outer membrane of gram-negative bacteria. LPS activates innate immune system and triggers the activation of inflammatory cytokines, neutrophils and macrophages as well as many pathophysiological processes in vivo, for instance fever and endotoxic shock. Aim of this study was to establish a zebrafish gut inflammation model using fluorophore conjugated endotoxin, LPS. We hypothesized that delivery of LPS in addition to EDTA in the gut of zebrafish triggers inflammation and increased gut permeability which may lead to leakage of LPS to blood stream and potentially kidney injury. This novel zebrafish inflammation model could possibly be used for studying the pathophysiological mechanisms of gut inflammation and possible kidney injury as well as for screening new anti-inflammatory drugs. In addition, this animal model can be used for studying intestinal alkaline phosphatase (IAP) in reducing gut permeability and LPS-mediated kidney damage. IAP is an enzyme produced in small-intestinal epithelium. IAP can detoxify several bacterial endotoxins including LPS and thus protect against the induction of intestinal inflammation. LPS and EDTA were delivered in the gut of 6 days old zebrafish larvae using microgavage injection. Fluorescence microscopy imaging of live zebrafish enabled following the same individual at different timepoints after injections. Paraffin sectioning of the small larvae was promising for investigating the morphology and permeability of the gut as well as possible immunostaining for detection of IAP. L-phenylalanine was used for inhibition of IAP enzyme. Using the novel method of microinjection to gut on zebrafish larvae the timing and amount of delivered materials to gut can be controlled well. The anatomy and function of the gut in zebrafish is very similar to small intestine of mammals and the highly developed vertebrate immune system makes zebrafish an interesting model organism for studying gut inflammation and permeability. In addition, inflammatory processes can be visualized in live, intact transparent zebrafish larvae. However, the technique has a lot of challenges including small size of the fish and possible tissue damage of the fish while performing injection. More experiments need to be carried out to establish the model for drug screening. Also, along with microscopy images, a more precise way for quantification the gut permeability is needed. Based on the images it’s not yet possible to conclude whether LPS increased gut permeability or if IAP inhibition with L-phenylalanine worked in zebrafish larvae. Using adult zebrafish in the future will give more information about the chronic gut inflammation and development of possible kidney injury.