Mastergradsoppgaver i biologi (Helsefak): Nye registreringer
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Optimization of the use of PrepFiler Express™ Forensic DNA extraction kit lysis buffer discard for mRNA profiling
(Mastergradsoppgave; Master thesis, 2021-06-01)mRNA profiling for body fluid or tissue type identification is able to provide circumstantial information alongside DNA profiles from biological material found at a crime scene. To solve the challenge of material limitation in body fluid identification, studies have successfully developed mRNA profiles of RNA extracted from lysis buffer discard of DNA-extraction. It would be interesting to examine ... -
High Palmitate Alters Glutathione Redox During Severe Oxidant Stress in the Heart; An Evaluation of Altered Glutathione Redox Environment on Cardiac Function and Mitochondrial Energetics.
(Mastergradsoppgave; Master thesis, 2021-05-18)When the heart is under stress, e.g. ischemia-reperfusion (IR), it produces an enormous amount of reactive oxygen species (ROS). Glutathione, which is an endogenous antioxidant derived from the ‘nicotinamide adenine dinucleotide hydrogen’ (NADH) of the ‘tricarboxylic acid’ cycle, can fight against this oxidative stress to balance the redox environment, and convert the produced ROS to H2O. In this ... -
A study on the interactions between perfluorosulfonic acids and P-glycoprotein
(Mastergradsoppgave; Master thesis, 2021-05-18)Perfluoroalkyl substances (PFAS) have received a great deal of attention due to the ubiquitous occurrence and persistence in the environment, resistance to degradation, and biological accumulation in wildlife and humans. PFAS are being detected around the globe, raising concerns regarding the toxicity and health risks to humans. Studies have shown that environmental toxicants, including PFAS, can ... -
Investigation into the presence of CRISPR-Cas- and R-M systems in Klebsiella pneumoniae and correlation with antibiotic resistance, virulence and plasmids
(Master thesis; Mastergradsoppgave, 2020-06-05)The aims were to perform a bioinformatic-statistical analysis of CRISPR-Cas- and R-M systems in a diverse whole genome sequenced K. pneumoniae population, and their correlations to virulence score and AMR -/ plasmid content. The strains (n=999) consisted of Norwegian fecal carrier (n=484) and clinical (NORM; ESBL and non-ESBL producing) (n=414), and national-international clinical ST307 strains ... -
ATAD3 proteins in autophagy. Do ATAD3 proteins have a direct role in regulating autophagy
(Master thesis; Mastergradsoppgave, 2020-05-22)ATPase Family AAA Domain -containing protein 3 (ATAD3) is a nuclear-encoded mitochondrial transmembrane protein encompassing three isoforms; ATAD3A, ATAD3B and ATAD3C. ATAD3 is involved in several cellular process and available data predict that ATAD3A and ATAD3B proteins may have potential roles in regulating autophagy and mitophagy. Preliminary data from our research group identified interactions ... -
A study of TRIM32 self-ubiquitination
(Master thesis; Mastergradsoppgave, 2020-05-15)TRIMs (tripartite motif proteins) constitute a family of ubiquitin E3 ligases that are involved in a variety of cellular processes including autophagy and carcinogenesis. TRIM32 contains an N-terminal RING finger domain, B-box region, a coiled-coil domain and six NHL repeats in the C-terminal region, which are involved in protein dimerization and substrate recognitions. Various mutations in the NHL ... -
Exploration of rabbit integrin β3 as a possible immune-tolerizing agent to prevent foetal and neonatal alloimmune thrombocytopenia.
(Mastergradsoppgave; Master thesis, 2020-08-07)Foetal and neonatal alloimmune thrombocytopenia (FNAIT) is a disease caused by the production of antibodies by the mother to the platelets of the foetus. The alloimmune response is caused by a P33L substitution in the Human Platelet Antigen-1a (HPA-1a) in a homo- or heterozygous HPA-1a foetus, in a homozygous HPA-1b+ mother. Maternal antibodies are produced by activated HPA-1a specific T-cells able ... -
Molecular interaction studies of initial electrostatic attraction between trypsin and the human PAR-2 receptor
(Master thesis; Mastergradsoppgave, 2020-01-16)Workers in livestock and fish cultivation are at increased risk of occupational airway damage caused by proteases. Proteases, such as trypsin, activate PAR-2 which in turn triggers an inflammatory response, potentially causing airway damage over time. There has been some speculation that PAR-2 receptors easier attract trypsin form species where this enzyme has a more negative electrostatic charge. ... -
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 ... -
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 ... -
Study of human PRKAR1A and its role in autophagy
(Master thesis; Mastergradsoppgave, 2018-05-11)The human PRKAR1A gene is a 381- amino acid protein encoding the regulatory subunit (RIα) of the cAMP dependent Protein Kinase A (PKA). The main function of PRKAR1A is to regulate the catalytic activity of PKA. PRKAR1A is shown to regulate autophagy via association with mTOR kinase and colocalization with the autophagy marker proteins LC3B, Rab7 and Rab9. Contradictory findings regarding the ... -
Optimisation of high-resolution fluorescence microscopy of normal- and preeclamptic placentas
(Master thesis; Mastergradsoppgave, 2019-08-14)Preeclampsia (PE) affects 3-5 % of pregnant women and may lead to maternal and/or fetal death. The main theory of PE is placental ischemia, leading to a dysfunctional placenta and clinical signs as hypertension and proteinuria in the mother. The primary aim of the thesis was to implement and optimise a method for high-resolution microscopy of placental cryo-sections. Secondary aims were to compare ... -
Modulation of dendritic cells phenotype and functions by irradiated and non-irradiated lung cancer fibroblasts. An in vitro study.
(Master thesis; Mastergradsoppgave, 2019-05-15)Stromal cells in the tumor microenvironment (TME) interacts with cancer cells and affect their behavior in diverse manners. In this study, we investigated in vitro the mechanisms by which non-irradiated and irradiated cancer-associated fibroblasts (CAFs) isolated from patients with non-small cell lung carcinoma (NSCLC) affected the phenotype and function of monocyte-derived dendritic cells (Mo-DCs) ... -
Exploring the in vitro expansion of CD4 T cells. For improved culturing of CD4 T cells linked to FNAIT
(Master thesis; Mastergradsoppgave, 2018-05-15)Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a rare disease that may cause serious bleedings in the fetus or neonate of a woman who has developed antibodies against the fetus’ platelets. Development of FNAIT has been linked to the presence of platelet reactive CD4 T cells that help B cells to develop into antibody producing plasma cells. To be able to conduct research on such T cells, ... -
Identification of protein interaction candidates for the GOLD domain of FYCO1
(Master thesis; Mastergradsoppgave, 2016-05-27)Autophagy is an evolutionary conserved degradative pathway, where damaged or surplus cytosolic components are sequestered into double membrane vesicles, autophagosomes, which become degraded through the lysosomal system. The autophagy is a dynamic process, which is depended of transport of autophagosomes along microtubule, to become degraded by lysosomes. One of the proteins involved in this transport ... -
Forensic DNA genotyping by means of next generation sequencing. Analysis of Autosomal STRs of a Norwegian population sample using the ForenSeq FGx system
(Master thesis; Mastergradsoppgave, 2018-05-15)Population databases containing allele frequencies of the genetic markers used for DNA-profiling are necessary for forensic geneticist to be able to perform statistical calculations on the statistical weight of DNA-evidence. However, allele frequencies differ from population to population, it is therefore important to establish population databases for specific graphical areas or population groups. ... -
The Immunostimulatory Potential of Mesenchymal Stem Cells for formation of Tertiary Lymphoid Structures in Lupus Nephritis
(Master thesis; Mastergradsoppgave, 2017-05-15)Formation of tertiary lymphoid structures (TLS) occurs in tissues targeted by chronic inflammatory processes, such as infection and autoimmunity. In systemic lupus erythematosus (SLE), TLS have been observed in the kidneys of lupus-prone mice and in kidney biopsies of SLE patients with Lupus Nephritis (LN). Here the role of tissue-specific mesenchymal stem cells (MSCs) as lymphoid tissue organizer ... -
The population structure of human carriage and clinical isolates of ESBL-producing Escherichia coli and Klebsiella pneumoniae in Norway
(Master thesis; Mastergradsoppgave, 2017-05-15)The increasing emergence of antimicrobial resistant bacteria worldwide is recognised as a severe threat to public health on a global scale. Without effective antimicrobial agents to treat bacterial infections, modern medicine will be set back several decades and deaths caused by bacterial infections will increase. The most widely used class of antimicrobials, is -lactams, and the increase in resistance ... -
Computational study of SERT using new X-ray crystal structures and initial experimental verification of potential GABAB receptor compounds
(Master thesis; Mastergradsoppgave, 2018-05-15)Depression is currently one of the leading causes worldwide of suicide and disability, the most common treatment is antidepressants. Most antidepressants work by increasing the monoamine levels in the central nervous system by inhibition of the reuptake of monoamines into the presynaptic neuron, and thereby ensure accumulation of the monoamines in the synaptic cleft. The main target for most ...