Doktorgradsavhandlinger (Helsefak): Nye registreringer
Viser treff 181-200 av 761
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Cesarean sections in Georgia and Norway - What contributes to too much, too little, or just right? The role of maternal risk factors and efforts to reduce high cesarean section rates
(Doctoral thesis; Doktorgradsavhandling, 2022-04-06)High rates of cesarean section are associated with increased mortality and morbidity. To decrease cesarean sections without medical indication is complex and requires in-depth knowledge of local context and which groups to target for possible interventions. Our aim was to assess the role of maternal risk factors in relation to cesarean section in Georgia and Norway, two countries with diverging rates ... -
Sex-steroids and social network in relation to Staphylococcus aureus nasal carriage
(Doctoral thesis; Doktorgradsavhandling, 2022-04-01)<i>Staphylococcus aureus</i> (<i>S. aureus</i>) is a human pathogen that can colonize skin and mucosa. Nasal carriage is associated with increased risk of autoinfection and transmission and it is therefore important to identify possible targets for prevention of carriage. Sex and age are the most important risk factors for <i>S. aureus</i> carriage, and hypotheses about sex-steroids as major host ... -
Inflammation, hypertension, and microRNA and Prostate Cancer. The Prostate Cancer throughout life (PROCA-life) study
(Doctoral thesis; Doktorgradsavhandling, 2022-03-31)<p><i>Background/Aims:</i> Prostate cancer (PCa) is the most common cancer among men in Norway as well as world-wide, and a major cause of health loss and death with 1.4 million new cases and 375 000 deaths world-wide in 2020. Biological mechanisms involved in PCa development are mainly unknown, but chronic inflammation, one hallmark of cancer development, has been questioned to play a key role in ... -
Antibiotic Resistance in Oral Streptococci: The prevalence, diversity, stability, and fitness cost of Tn916 -Tn1545 family in oral streptococcal isolates
(Doctoral thesis; Doktorgradsavhandling, 2022-03-25)Oral streptococci are important members of the oral microbiome that are gathering more attention due to the presence of antimicrobial resistance determinants and their association with mobile genetic elements. Mobile genetic elements such as the ICE, Tn916 are abundant in bacterial populations and have been implicated in the spread of antibiotic resistance. Despite their abundance, little is known ... -
Cardiopulmonary Resuscitation and Rewarming from Accidental Hypothermia
(Doctoral thesis; Doktorgradsavhandling, 2022-03-11)This thesis springs from 3 different papers: Paper 1 A randomised controlled study in rats to investigate whether an infusion of crystalloids or colloids during rewarming from hypothermia could alleviate the alterations in cardiovascular function seen in untreated control animals. Paper 2 A randomised controlled study in pigs, examining normothermic vs hypothermic cardiopulmonary resuscitation (CPR). ... -
Treatment success with continuous positive airway pressure or mandibular advancement splints in non-severe obstructive sleep apnea: A randomized controlled clinical trial on sleep quality, health-related quality of life and clinical predictors of treatment success
(Doctoral thesis; Doktorgradsavhandling, 2022-04-04)Obstructive sleep apnea (OSA) is a respiratory sleep-disorder characterized by repeated breathing cessations due to pharyngeal soft tissue collapse, leading to several medical disorders and possibly premature death. Two commonly used treatment alternatives for OSA are continuous positive airway pressure (CPAP) and mandibular advancement splints (MAS). The overall aim of this randomized clinical trial ... -
Come Together: Promoting Work and Well-Being. A study in the framework of the JD-R model
(Doctoral thesis; Doktorgradsavhandling, 2022-03-18)The levels of sickness absenteeism in Norway are extraordinarily high. One of three employees reports that work is partly or fully the reason why they are absent. Regardless of a clear and explicit political goal to reduce sickness absence, previous reforms in Norway have not had much success. In this dissertation, we collected self-report data from thousands of jobholders and performed cross-sectional ... -
Evidence basis for injury prevention in Northwestern Russia: a study from the Population-based Shenkursk Injury Registry
(Doctoral thesis; Doktorgradsavhandling, 2022-02-25)Injuries are the important public health problem worldwide. Good-quality injury data are necessary for the development of effective prevention. The Shenkursk Injury Registry (SHIR) was established in the Shenkursk District, Northwestern Russia in 2015. The SHIR covers all injuries for which medical aid is given at the Shenkursk central district hospital (CDH). Overall aim was to provide an evidence ... -
Aspects on Recanalisation Therapies for Acute Ischaemic Stroke. Long-term survival after thrombolytic treatment with alteplase, endovascular thrombectomy for acute ischaemic stroke and recanalisation therapies for wake-up stroke
(Doctoral thesis; Doktorgradsavhandling, 2022-01-21)Stroke is a leading cause of death and disability worldwide. Approximately 85% of strokes are ischaemic strokes caused by blockage of a brain artery. Recanalisation therapies with thrombolysis (injection of drugs that dissolve the blood clot) and thrombectomy (mechanical removal of the blood clot) have revolutionised acute ischaemic stroke treatment during the last 25 years. Thrombolysis within ... -
Nanocarriers for tailored skin delivery: More than just the carriers?
(Doctoral thesis; Doktorgradsavhandling, 2018-11-23)Skin diseases are among the top 5 most leading diseases causing non-fatal health burden worldwide and strategies to assure more effective treatments are urgently needed. Dermal therapy is very attractive due to the direct administration of the drug at the diseased skin site thus minimizing systemic side effects associated with the oral and parenteral routes. However, the great variety within the ... -
Our climatic environment and pain. Exposure to cold environment at work and the weather in daily life
(Doctoral thesis; Doktorgradsavhandling, 2021-12-20)Chronic pain is a major health challenge, and musculoskeletal pain is among the main contributors to years lived with disability worldwide. Earlier research found an association between cold exposure at work and musculoskeletal pain. However, the literature is scarce, especially regarding chronic pain. It is a common belief that weather affects pain experience, but the literature on this topic is ... -
Accelerometer-measured physical activity in Norwegian adolescents. Results from The Fit Futures Study
(Doctoral thesis; Doktorgradsavhandling, 2021-12-16)This thesis examined the prevalence and patterns of accelerometer-measured physical activity in a cohort of urban-rural older adolescents in Northern Norway, participating in the Fit Futures Study. The thesis also assessed the validity of self-reported physical activity against accelerometer measurements, and explored the association between accelerometer-measured physical activity and subsequent ... -
Shaping the Perception of Risk: Investigating a Paradigmatic Case of Applied Decision Making under Uncertainty
(Doctoral thesis; Doktorgradsavhandling, 2021-12-15)Risk and uncertainty characterise most human endeavours. Whether judging risk when buying a house, making a career change, considering marriage, or simply ordering food at an unfamiliar restaurant, each decision involves evaluating the available evidence to infer the likelihood of negative outcomes. Such decisions are often marked by uncertainty, the condition of incomplete knowledge about the ... -
Medication therapy and treatment goal achievement among persons with coronary heart disease in a general population - Guideline adherence, medication adherence and validation of medication use
(Doctoral thesis; Doktorgradsavhandling, 2021-12-13)<p><i>Aim -</i> To assess the adherence to medication therapy for secondary prevention and achievement of treatment goals in persons with coronary heart disease (CHD) in a general population. <p><i>Methods -</i> This project used data from the seventh wave of the Tromsø Study, alone and linked with data from the Norwegian Prescription database (NorPD). Participants self-reporting CHD were included ... -
The obesity epidemic; population levels of visceral adipose tissue and trends in body composition. Insights from The Tromsø Study
(Doctoral thesis; Doktorgradsavhandling, 2021-12-09)<p><i>Background:</i> Simultaneously with the growing obesity epidemic, cardiometabolic risk have decreased in high-income countries. Do the most frequently used general and abdominal obesity measures (BMI and waist circumference) fail to represent actual obesity and obesity-related health risk? <p><i>Aims:</i> 1) present reference- and threshold values for DXA-derived visceral adipose tissue (VAT) ... -
Oral health among the indigenous Sámi population. A population-based study on periodontal health, dental caries, and oral health-related quality of life
(Doctoral thesis; Doktorgradsavhandling, 2021-12-08)<p><i>Background/Aim:</i> The lack of scientific knowledge on oral health in Sámi populations and the regional differences in caries experience among children in Northern Norway has raised the question of whether the high prevalence of oral disease in that geographic area differs by ethnicity. Evidence-based knowledge on oral health conditions in adults in these areas is scarce. The overall objective ... -
Mechanism and structural requirements for formation of p62 bodies and degradation of p62 by selective autophagy
(Doctoral thesis; Doktorgradsavhandling, 2021-12-03)Selective autophagy is responsible for the lysosomal degradation of damaged and surplus cytoplasmic components, including misfolded proteins and dysfunctional organelles. Selective autophagy is required for protein and organelle quality control basally and upon stress. For the autophagic process to be precise, selective autophagy receptors (SARs) like SQSTM1/p62 are required. Autophagic substrates ... -
The temporal development of cognitive behavioral therapy as treatment for unipolar depression. An evaluation based on three meta-analyses, focusing on time-trends, effect sizes, and associated moderators
(Doctoral thesis; Doktorgradsavhandling, 2021-11-29)The present thesis` main objective was to examine time-trends related to CBT as an anti-depressive treatment. A meta-analytic approach was the tool for such investigations, in which the formats of individual, group (GCBT), and mindfulness-based cognitive behavioral therapy (MCBT) were explored from a temporal point of view, and the results subsequently summarized in four articles. The meta-analyses ... -
Circle of Willis variants and cerebrovascular health: Representations, prevalences, functions and related consequences. Incomplete anatomy and changes to flow appear to induce more unfavourable health outcomes
(Doctoral thesis; Doktorgradsavhandling, 2021-12-03)<p><i>Background:</i> The Circle of Willis (CoW) is a circular structure of arteries in which most of the blood flowing to our brains pass through. The structure has primarily been regarded as important for its ability to redistribute blood flow in case of acute arterial occlusion, but may also have a role in dampening the pressure gradient in cerebral blood flow. The CoW anatomy also varies ... -
Testicular cancer survivors in the cisplatin era: Metachronous contralateral testicular cancer, second cancer and causes of death
(Doctoral thesis; Doktorgradsavhandling, 2021-11-26)<p><i>Background/aims:</i> Testicular cancer (TC) is the most common cancer among young men aged 20-40 years. The cure rates are excellent, an important factor being the chemotherapeutic agent cisplatin. This thesis aimed to investigate how TC treatment influenced the subsequent risk for metachronous contralateral (second) TC, non-TC second cancer (SC) and non-TC mortality. <p><i>Methods:</i> The ...