Blar i NTNU Open på forfatter "Haugum, Kjersti"
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Bacteroides fragilis: metoder for å skille mellom divisjon I (cfiA-negativ) og divisjon II (cfiA-positiv)
Guttvik, Ingebjørg; Lamøy, Ingvild (Bachelor thesis, 2023)Bacteroides fragilis er en viktig del av normalfloraen i tarmen, men er også den vanligste isolerte anaerobe bakterien fra mono- og polymikrobielle infeksjoner av gastrointestinal opprinnelse. B. fragilis har evne til å ... -
Comparative genomics of Streptococcus agalactiae from adults with invasive infection
Rønning, Torunn Gresdal (Master thesis, 2019)Introduksjon: Streptococcus agalactiae (gruppe B streptokokker, GBS) er mest kjent for å være årsak til neonatal sepsis. I de senere år har det blitt rapportert en signifikant økning i antall voksne med GBS sykdom fra flere ... -
Comparative genomics to delineate pathogenic potential in Non-O157 Shiga toxin-producing Escherichia coli (STEC) from patients with and without haemolytic uremic syndrome (HUS) in Norway
Haugum, Kjersti; Johansen, Jostein; Gabrielsen, Christina; Brandal, Lin Thorstensen; Bergh, Kåre; Ussery, David Wayne; Drabløs, Finn; Afset, Jan Egil (Journal article; Peer reviewed, 2014)Shiga toxin-producing Escherichia coli (STEC) cause infections in humans ranging from asymptomatic carriage to bloody diarrhoea and haemolytic uremic syndrome (HUS). Here we present whole genome comparison of Norwegian ... -
Comparative Transcriptome Profiling Reveals a Potential Role of Type VI Secretion System and Fimbriae in Virulence of Non-O157 Shiga Toxin-Producing Escherichia coli
Ås, Christina Gabrielsen; Drabløs, Finn; Haugum, Kjersti; Afset, Jan Egil (Journal article; Peer reviewed, 2018)Shiga toxin-producing Escherichia coli (STEC) cause both sporadic infections and outbreaks of enteric disease in humans, with symptoms ranging from asymptomatic carriage to severe disease like haemolytic uremic syndrome ... -
Comparison of iron acquisition mechanisms and growth characteristics of Escherichia coli from bloodstream infection in patients with low and normal iron status
Bista Thapa, Anima (Master thesis, 2019)Sepsis is a systemic inflammatory response to infection which is one of the major public health issues with significant mortality and morbidity. Bloodstream infections are infectious diseases characterised by the presence ... -
Evaluation of Real-Time PCR for rapid phenotypic susceptibility testing of Escherichia coli to gentamicin
Rigstad, Synnøve Nordsteien (Master thesis, 2021)Slappe strategier for infeksjonskontroll og høyt forbruk av antimikrobielle stoffer i noen land gir god grobunn for resistente bakterier, og med en svært sammenkoblet verden kan mikrober spre seg fort. Blodstrømsinfeksjoner ... -
Evaluering av MBT STAR-Carba for deteksjon av karbapenemaseproduserende bakterier ved hjelp av MALDI-TOF MS
Wiik, Kristine; Herstad Sørensen, Tonje (Bachelor thesis, 2022)Antibiotikaresistens i form av karbapenemaseproduksjon i Gram-negative bakterier er en økende helseutfordring på verdensbasis. Plasmidmedierte karbapenemasegener gir økt spredningspotensiale, og spres raskt til og mellom ... -
Functional profiling reveals altered metabolic activity in divers’ oral microbiota during commercial heliox saturation diving
Monnoyer, Roxane; Eftedal, Ingrid; Hjelde, Astrid; Deb, Sanjoy Kumar; Haugum, Kjersti; Lautridou, Jacky (Peer reviewed; Journal article, 2021)Background: The extreme environment in saturation diving affects all life forms, including the bacteria that reside on human skin and mucosa. The oral cavity alone is home to hundreds of different bacteria. In this study, ... -
Phenotypic and genotypic characterisation of thymine auxotrophy in Escherichia coli isolated from a patient with recurrent bloodstream infection
Jakovljev, Aleksandra; Afset, Jan Egil; Haugum, Kjersti; Steinum, Harald Otto; Rønning, Torunn Gresdal; Samuelsen, Ørjan; Ås, Christina Gabrielsen (Peer reviewed; Journal article, 2022)Introduction Thymine auxotrophic in vitro mutants of Escherichia coli were first reported in the mid-20th century. Later, thymine-dependent clinical strains of E. coli as well as other Enterobacterales, Enterococcus ... -
Role of putative adherence factor in Shiga toxin producing Escherichia coli (STEC)
Jeyachandran, Janani (Master thesis, 2019)Background: Infection with Shiga toxin producing Escherichia coli (STEC) may cause severe disease like haemorrhagic uremic syndrome (HUS). In addition to Shiga toxins, the ability to adhere to intestinal epithelial cells ... -
Shifts in the oral microbiota during a four-week commercial saturation dive to 200 meters
Monnoyer, Roxane; Haugum, Kjersti; Lautridou, Jacky; Flatberg, Arnar; Hjelde, Astrid; Eftedal, Ingrid (Peer reviewed; Journal article, 2021)During commercial saturation diving, divers live and work under hyperbaric and hyperoxic conditions. The myriads of bacteria that live in and on the human body must adjust to the resultant hyperbaric stress. In this study, ... -
Studies of genetic characteristicsin Shiga toxin-producing Escherichiacoli (STEC) from patients withand without haemolytic uremicsyndrome (HUS) in Norway
Haugum, Kjersti (Doktoravhandlinger ved NTNU, 1503-8181; 2014:327, Doctoral thesis, 2014) -
Use of Sysmex UF-5000 flow cytometry in rapid diagnosis of urinary tract infection and the importance of validating carryover rates against bacterial count cut-off
Haugum, Kjersti; Haugan, Maria Schei; Skage, Jannicke; Tetik, Mariann Havdahl; Jakovljev, Aleksandra; Nilsen, Hans-Johnny; Afset, Jan Egil (Peer reviewed; Journal article, 2021)Introduction. Urinary tract infections are common bacterial infections worldwide. Urine culture is the gold standard method to identify and quantify the presence or absence of bacteria in urine. Flow cytometry, which can ... -
What happens in the oral cavity of divers during commercial saturation diving? Environmental adaptations of the oral microbiota and effects on the divers’ physiology: analysis of the metagenome and salivary stress biomarkers.
Monnoyer, Roxane (Doctoral theses at NTNU;2022:84, Doctoral thesis, 2022)Commercial saturation diving has been used by the offshore oil and gas industry in the North Sea since the 1960s to perform long-term underwater work safely and efficiently. The highpressure oxygen conditions of the confined ...