Doktorgradsavhandlinger (Helsefak): Nye registreringer
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Microbial Adaptation - Responses to External Cues
(Doctoral thesis; Doktorgradsavhandling, 2024-02-09)Bacteria can adapt to various environments because they efficiently sense and respond to external cues. This is exemplified by antibiotic resistance, a leading cause for death on a global scale. Antibiotics exert a selection pressure on bacteria, where improper use can inadvertently select for antibiotic resistance. Dissemination of antibiotic resistance throughout bacterial populations can occur ... -
Panoramic radiograph analyses for early detection of osteoporosis in the population of Northern Norway
(Doctoral thesis; Doktorgradsavhandling, 2024-01-26)Osteoporosis is a chronic disease affecting bone tissue that may lead to fractures from minor accidents. Roughly 20% of females and 6 % of males have osteoporosis after age 50, but the disease might be present at a younger age. Early diagnosis is challenging because the disease has no symptoms. Dental radiography is a frequent examination that might be useful for early osteoporosis screening at ... -
Energetics, energy availability and Relative Energy Deficiency in Sport (REDs) in female football players - Methodological perspectives and research implications
(Doctoral thesis; Doktorgradsavhandling, 2024-01-18)<p><i>Background:</i> For athletes, it is imperative that energy intake adequately addresses the total energy requirements inherent to their specific sport. Low energy availability, which is the failure to provide the body with adequate energy to sustain physiological homeostasis, may potentially result in Relative Energy Deficiency in Sport (REDs). This is a syndrome that can have detrimental health ... -
Exploring mitochondrial quality control mechanisms and mitochondria-lipid droplet interactions in cardiac cell models
(Doctoral thesis; Doktorgradsavhandling, 2024-01-11)Mitochondria are the main energy producing units (organelles) in cardiac cells (cardiomyocytes). Cardiomyocytes have especially high mitochondrial content due to the heart’s continuous energy-intensive pumping. Studies of heart disease (such as heart failure) indicate that mitochondrial dysfunction is central to disease progression. There are many cellular mechanisms that protect mitochondria from ... -
Decision-making in Norwegian child welfare services- The impact of case characteristics on decision-making from referral to concluded investigation
(Doctoral thesis; Doktorgradsavhandling, 2024-01-18)The thesis explores how case characteristics impact decision-making in the Norwegian child welfare service. The following decisions were studied: i) the initial screening decision, ii) the extent of an investigation, and iii) the dismissal of cases when the family refuse interventions. Previous research has identified differences in case trajectory between agencies. The impact of case characteristics ... -
Prolonged Cardiopulmonary Resuscitation in Accidental Hypothermia: Physiological and pathophysiological effects of cardiopulmonary resuscitation (CPR) in hypothermia regarding hemodynamics, oxygen transport and regional blood flow
(Doctoral thesis; Doktorgradsavhandling, 2023-12-21)This thesis was aimed to examine the physiological and pathophysiological effects of 3 hours continuous cardiopulmonary resuscitation (CPR) at 27°C concerning hemodynamics, oxygen transport, and regional blood flow. We aimed to explore mechanisms responsible for the successful resuscitation of accidental hypothermia victims in hypothermic cardiac arrest (HCA) and evaluate their value during prolonged ... -
Dementia Disease Initiation: Demographically adjusted norms based on Scandinavian samples and comparison with published norms from North America
(Doctoral thesis; Doktorgradsavhandling, 2023-12-14)<p><i>Background:</i> Norms are necessary for interpreting neuropsychological test scores. In Norway and Sweden, there is a lack of local norms on neuropsychological tests. Consequently, Scandinavians are frequently norm-referenced to participants from North America tested decades prior. However, factors such as time of assessment, language, population differences in average performance on cognitive ... -
Measuring socioeconomic position in studies of health inequalities
(Doctoral thesis; Doktorgradsavhandling, 2024-02-08)<p>There is a consistent finding that the higher the socioeconomic position (SEP), the better the health. The choice of SEP indicator is crucial in explaining these socioeconomic inequalities. However, a poorly motivated use of SEP indicators prevails in the literature on social health inequalities, hampering the transparency and comparability across studies. Its primary aim is to explore different ... -
Human Exposure to PFAS and Other Anthropogenic Organofluorine Chemicals in Tromsø between 1986 and 2015
(Doctoral thesis; Doktorgradsavhandling, 2023-12-06)Summary In the last century, there has been a dramatic increase in chemical production and number and diversity of chemicals produced. Especially, organofluorine chemistry has increased its importance due to applications in pharmaceuticals, agrochemicals, refrigerant gases and in consumer products and industry with fluoropolymers and per- and polyfluoroalkyl substances (PFAS). PFAS are receiving ... -
Family focus in mental health and social services for adults: Supporting minor children of parents in challenging life situations
(Doctoral thesis; Doktorgradsavhandling, 2023-11-30)Parental mental illness, parents’ loss of ability to work and family poverty affect children and put them at risk for adverse life outcomes. Support for and attendance to minor children and parenting in adult mental health and social services should therefore be an incorporated practice. The main aim of this thesis was to investigate the extent and quality of a family focus in these adult services. ... -
Blood biomarkers and Type 2 Diabetes Mellitus - Repeated measurements of blood biomarkers in Type 2 Diabetes Mellitus cases and controls; longitudinal assessments and associations
(Doctoral thesis; Doktorgradsavhandling, 2023-11-24)Type 2 diabetes (T2DM) is a chronic metabolic disease and is characterised by insulin resistance and insufficient insulin secretion, resulting in hyperglycaemia. The prevalence of diabetes was estimated to be 10.5% in 2021, globally. T2DM is associated with several complications, including cardiovascular complications, degradation of nerve fibres and eyesight, and impaired kidney function, especially ... -
Men's Underrepresentation in Communal Occupations: A Social-Developmental Approach
(Doctoral thesis; Doktorgradsavhandling, 2023-11-23)This dissertation addresses psychological factors that contribute to the underrepresentation of men in communal occupations (i.e., occupations associated with communal traits, e.g., nurse), based on the theoretical perspectives from the developmental theory of occupational aspirations (Gottfredson, 1981) and the model of achievement-related choices (Eccles et al., 1983). The underrepresentation of ... -
Secondary Fracture Prevention and Forearm Fracture Epidemiology. NoFRACT – The Norwegian Capture the Fracture Initiative
(Doctoral thesis; Doktorgradsavhandling, 2023-11-17)<p><i>Background:</i> Osteoporosis and fragility fractures are common, and a burden to patients and society. Forearm fracture are a common fragility fracture. Anti-osteoporotic drugs (AODs) that reduce the risk of future fracture are available, but under 20% of fragility fracture patients receive AODs. To close this treatment gap Fracture Liaison Services (FLS) with systematic identification, ... -
Early Markers of Metabolic Dysregulation in Obese Individuals - Identification at Baseline and Effect of Modest Weight Loss
(Doctoral thesis; Doktorgradsavhandling, 2023-11-15)<p><i>Background:</i> Evidence suggests that the link between obesity and chronic lifestyle disease is chronic, low-grade inflammation. Leptin and adiponectin play principal roles in inducing inflammation and promoting insulin resistance, resulting in metabolic syndrome. Our study aimed to find clinically feasible biologic markers to identify metabolically dysregulated obese individuals and to study ... -
Deciphering human cell type enriched transcriptomes across tissue types and the functional study of the endothelial enriched protein KANK3
(Doctoral thesis; Doktorgradsavhandling, 2023-11-13)The identification of cell type-specific genes and their modification under certain conditions is essential for our understanding of the human body. Such knowledge also allows us to study the function of uncharacterised genes in the correct cell type. Single-cell RNA sequencing (scRNAseq) can be used to profile different cell types, but cell removal and processing can introduce artifacts. In the ... -
Temperature-dependent effects of phosphodiesterase inhibitors for cardiovascular support in hypothermic patients - Effects on cellular elimination of cAMP and cGMP
(Doctoral thesis; Doktorgradsavhandling, 2023-11-10)Hypothermia-induced cardiac dysfunction (HCD), commonly seen during rewarming, is one of the feared complications of accidental hypothermia. Animal studies with phosphodiesterase (PDE) inhibitors and sodium nitroprusside have demonstrated positive effects on reversing HCD. These medications act by indirectly increasing intracellular levels of cyclic adenosine monophosphate (cAMP) and cyclic guanosine ... -
HPV mRNA and HPV DNA Tests in Cervical Cancer Screening
(Doctoral thesis; Doktorgradsavhandling, 2023-11-09)<p><i>Background:</i> Cervical cancer is the fourth most prevalent cancer in women worldwide. Cervical cancer screening (cytology or human papillomavirus [HPV] testing) and HPV vaccination can decrease cervical cancer incidence and mortality. However, because cytology-based screening has a low sensitivity to detect high-grade cervical lesions, several countries have replaced it with HPV test-based ... -
Integration and the Voluntary Sector: An Unfavourable Pairing, or the Perfect Match? - Exploring Integration Processes of Immigrants through and in the Voluntary Sector in Norway
(Doctoral thesis; Doktorgradsavhandling, 2023-11-09)This thesis explores how volunteerism and processes of and around integration interact, and where and how the voluntary sector may facilitate – or hamper – integration processes in a Norwegian setting. It thus addresses the recent shift towards everyday life integration in Norwegian policymaking. The thesis scrutinizes power relations between the various actors in the field: policymakers, voluntary ... -
Cardiac remodelling in obesity- and angiotensin II-mediated heart failure: Morphological, functional and metabolic alterations
(Doctoral thesis; Doktorgradsavhandling, 2019-10-21)Heart failure is associated with altered myocardial substrate utilization and reduced cardiac efficiency - changes that are hallmarks in heart failure independent of disease aetiology. This thesis describes remodelling in two distinct models of heart failure, namely obesity-mediated cardiomyopathy and early failure induced using a low dose angiotensin II (AngII). The reported cardiac phenotype in ... -
Assessment of LDL and HDL Subfractions and Metrics of HDL Function in High-Risk Patients of Cardiovascular Disease: Evaluation of Four Different Interventions
(Doctoral thesis; Doktorgradsavhandling, 2023-10-27)Our research focused on assessing lipoprotein subfractions using the Lipoprint LDL® and HDL® system and evaluating metrics associated with HDL function. We examined data from four intervention trials involving high-risk patients of atherosclerotic cardiovascular disease (ASCVD). The interventions included lifestyle changes followed by bariatric surgery for morbidly obese patients, statin and ezetimibe ...