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Improved chronic wound therapy: surface charged deformable liposomes for dermal delivery of curcumin
(Master thesis; Mastergradsoppgave, 2018-05-15)Chronic wounds are today representing a major challenge in global healthcare due the difficulty to treat as well as the costs for the society. Therefore, improving chronic wound therapy is an urgent need. Curcumin, a polyphenol compound, has shown to have potential in wound therapy due to its anti-inflammatory, anti-infectious and anti-oxidant properties. However, the poor water solubility, low ... -
Regulation of urokinase receptor (uPAR) cleavage by cancer associated fibroblasts (CAFs) in oral cancer
(Master thesis; Mastergradsoppgave, 2019-05-15)Oral squamous cell carcinoma (OSCC) is one of the frequently diagnosed type of oral cancers and is a leading cause of cancer associated mortality and morbidity worldwide. Cancer associated fibroblasts (CAFs) are activated fibroblasts that are found in association with cancer cells. CAFs are the most abundant stromal cells in the tumor microenvironment (TME). In the TME, cell interactions mediated ... -
Adherence and Practical Challenges of Long-Term Telerehabilitation in COPD Patients: A Mixed-Method Study.
(Master thesis; Mastergradsoppgave, 2019-05-15)Telerehabilitation (TR) increases accessibility towards pulmonary rehabilitation (PR) in chronic obstructive pulmonary disease (COPD) patients. It appears to be a cost-effective alternative to PR. We aimed to study adherence of COPD patients participating in long-term TR and practical challenges of TR from professional ́s perspective. 40 COPD patients participated in TR for 2 years. Participants ... -
Identifying Staphylococcus haemolyticus surface proteins. Development of a novel method for detection of bacterial surface proteins expressed during colonisation of human keratinocytes
(Master thesis; Mastergradsoppgave, 2018-05-15)The aim was to develop a method for identification of expressed surface proteins of Staphylococcus haemolyticus when colonising human keratinocytes. S. haemolyticus and HaCaT cells were grown together and separated with FACS prior to surface protein shaving using the LPI™FlowCell technology (Nanoxis Consulting AB). TMT-tags were used to investigate up- and downregulation of proteins comparing S. ... -
Immune-modulating properties of carcinoma-associated fibroblasts and their changes during radiotherapy. In vitro study of primary non-small cell lung carcinoma-associated fibroblasts
(Master thesis; Mastergradsoppgave, 2015-05-15)Background/aim of the study: Carcinoma-associated Fibroblasts (CAFs) comprise a heterogeneous population of cells and often represent the major cellular component of solid malignancies playing critical roles in tumor progression and metastasis. The purpose of this study was to gain more knowledge on the immunosuppressive traits of CAFs isolated from non-small cell lung carcinomas (NSCLC), and to ... -
Moderate but not severe hypothermia causes pro-arrhythmic changes in cardiac electrophysiology
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-02-07)<i>Aims</i> - Treatment of arrhythmias evoked by hypothermia/rewarming remains challenging, and the underlying mechanisms are unclear. This <i>in vitro</i> experimental study assessed cardiac electrophysiology in isolated rabbit hearts at temperatures occurring in therapeutic and accidental hypothermia.<p><p> <i>Methods and results</i> - Detailed ECG, surface electrogram, and panoramic optical ... -
Mathematical Models of Optimal Antibiotic Treatment
(Doctoral thesis; Doktorgradsavhandling, 2020-06-09)When bacteria are exposed to antibiotics, the rate of killing can slow down dramatically over time. This phenomenon can be observed both in vitro and in vivo. In vitro, the mechanistic explanations for this can be divided into two main categories: antibiotic persistence and heteroresistance. In vivo, both mechanisms thought to contribute to observed slowdowns in the elimination and as a result may ... -
Lidenskap, selvbestemmelse, motivasjon, vitalitet og prestasjonsnivå i fotball
(Master thesis; Mastergradsoppgave, 2019-05-14)Studiet baseres på 120 fotballspillere på bredde og elitenivå som har besvart spørreskjemaer angående idrettpsykologi i fotball. Hensikten med studiet er å finne ut hvordan psykologiske egenskaper som lidenskap, selvbestemmelse, motivasjon og vitalitet korrelerer med hverandre. Studiet ser også nærmere på forskjeller innenfor idrettpsykologi med tanke på kjønn og nivåforskjeller. Funnene fra studiet ... -
Nurses’ experiences of ICU diaries following implementation of national recommendations for diaries in intensive care units: A quality improvement project
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-05)<i>Objectives</i> - To evaluate critical care nurses’ experiences of ICU diaries following the implementation of national recommendations for the use of diaries for critically ill patients.<p><p> <i>Design</i> - A quality improvement project describing the development and implementation of national recommendations (2011), as well as the assessment of the use of diaries in intensive care nursing ... -
Liposomes as Potential Carrier for Bioactive β2,2- Amino Acid Derivatives - A Feasibility Study
(Master thesis; Mastergradsoppgave, 2015-05-13)The emergence of antibiotic resistant bacterial strains is a rising global problem that does not only result in fatal infections of previously treatable cases, but increases also the economic burden of health care systems. The same applies for cancer as treatment of some cancer types is difficult and also resistance to treatment is an increasing problem in cancer chemotherapy. Novel treatment ... -
Quantitative Phosphoprotein Analysis in Adipose Tissue
(Master thesis; Mastergradsoppgave, 2016-05-13)Background: Mass spectrometry-based proteomics has increasingly been the choice of method for the global analysis of the composition, modification and dynamics of proteins. Quantitative analysis of the proteome with tandem mass tag is a technique for calculating the relative abundance of the proteome in tissues and organelles. In this thesis, present a novel bottom-up method for the quantitative ... -
Molecular aspects of high-risk neuroblastoma and novel therapeutic opportunities
(Doctoral thesis; Doktorgradsavhandling, 2020-05-29)Neuroblastoma is a highly heterogenous cancer of childhood. High-risk disease has a poor prognosis with survival around 50% and cured patients suffer treatment related late effects. Better therapy is needed. Increased knowledge of the molecular biology of high-risk neuroblastomas is essential to devise new treatments. High-risk neuroblastomas are frequently MYCN-amplified (MNA). MNA is correlated ... -
MicroRNA-193b-3p represses neuroblastoma cell growth via downregulation of Cyclin D1, MCL-1 and MYCN
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-06)Neuroblastoma is the most common diagnosed tumor in infants and the second most common extracranial tumor of childhood. The survival rate of patients with high-risk neuroblastoma is still very low despite intensive multimodal treatments. Therefore, new treatment strategies are needed. In recent years, miRNA-based anticancer therapy has received growing attention. Advances in this novel treatment ... -
Exosome-like extracellular vesicles from MYCN-amplified neuroblastoma cells contain oncogenic miRNAs
(Journal article; Tidsskriftartikkel; Peer reviewed, 2015)<p><i>Background:</i> In recent years, evidence has accumulated indicating that both normal and cancer cells communicate via the release and delivery of macromolecules packed into extracellular membrane vesicles. <p><i>Materials and Methods:</i> We isolated nano-sized extracellular vesicles from MYCN-amplified neuroblastoma cell lines using ultracentrifugation and exosome precipitation (Exoquick) ... -
Inhibitors of ribosome biogenesis repress the growth of MYCN-amplified neuroblastoma
(Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-12)Abnormal increases in nucleolar size and number caused by dysregulation of ribosome biogenesis has emerged as a hallmark in the majority of spontaneous cancers. The observed ribosome hyperactivity can be directly induced by the MYC transcription factors controlling the expression of RNA and protein components of the ribosome. Neuroblastoma, a highly malignant childhood tumor of the sympathetic nervous ... -
Old antibiotics as alternative treatment options for urinary tract infections caused by ESBL-, AmpC- and carbapenemase-producing Escherichia coli
(Doctoral thesis; Doktorgradsavhandling, 2020-05-25)Multidrug-resistant (MDR) bacteria, including Escherichia coli, producing extended-spectrum β-lactamase (ESBL), AmpC or carbapenemases, are acknowledged among the most significant global health threats. Growing rates of MDR E.coli can lead to an increase in the use of reserve antimicrobials. Re-introducing “old antimicrobials” could offer a timely solution. This work aimed at evaluating the role of ... -
Body mass index and risk of malnutrition in community-living elderly men and women: relationships with morbidity, mortality and health- related quality of life. The Tromsø and HUNT studies
(Doctoral thesis; Doktorgradsavhandling, 2011-06-09)The elderly population is rapidly growing, and elderly individuals are more vulnerable to nutritional problems than other adults. A number of studies have found evidence for adverse health outcomes in elderly patients at risk of malnutrition. However, much of the previous research has been performed in hospital populations or in groups of elderly patients with specific diagnoses. More population-based ... -
Er spastisitet i beina, målt med Modified Ashworth Scale, assosiert med gange og balanse hos personer med multippel sklerose?
(Master thesis; Mastergradsoppgave, 2016-05-10)Bakgrunn: Spastisitet er et symptom som skyldes skade eller sykdom i sentralnervesystemet, og oppstår hos over 80 % av personer med multippel sklerose. Spastisitet er funnet å redusere livskvalitet, bevegelsesevnen og gir ofte smerter. Assosiasjonen mellom spastisitet, balanse og gangfunksjon er hittil ikke etablert. Det er heller ingen enighet om hvordan spastisitet best bør måles. Formålet med ... -
Sammenheng mellom mindset og tankestrategi
(Master thesis; Mastergradsoppgave, 2019-05-09)Prefaktiske tanker – tanker om konsekvenser av tenkte handlinger før de utføres – kan være gunstig for å forstå hvordan fremtidige mål kan oppnås. (Epstude, Scholl & Roese, 2016), mens kontrafaktisk tanker – tanker om hva som alternativt kunne skjedd – er funksjonell ved å hjelpe individet med atferdsregulering (Epstude & Roese, 2008). Denne studien undersøker sammenhengen mellom studenters prefaktiske- ... -
Substance Use Disorder patients with and without Attention Deficit Hyperactivity Disorder: Exploring differences in personality, substance use-related aspects and quality of life in a naturalistic follow-up study
(Doctoral thesis; Doktorgradsavhandling, 2020-05-22)<p><i>Background.</i> About 15% of adults seeking substance use disorder (SUD) treatment also have Attention Deficit Hyperactivity Disorder (ADHD). SUD+ADHD patients often present more severe substance use (SU) and may be more difficult to treat. Research on SUD+ADHD has mostly focused on the reduction of ADHD and SUD symptoms and less on other relevant factors in the context of SUD treatment. ...