Browsing NTNU Open by Author "Krøkje, Åse"
Now showing items 1-20 of 35
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Alteration of neuro-dopamine and steroid hormone homeostasis in wild Bank voles in relation to tissue concentrations of PFAS at a Nordic skiing area
Grønnestad, Randi; Schlenk, Daniel; Krøkje, Åse; Jaspers, Veerle; Jenssen, Bjørn Munro; Coffin, Scott; Bertotto, Luísa Becker; Giroux, Marissa; Lyche, Jan Ludvig; Arukwe, Augustine (Peer reviewed; Journal article, 2020)Perfluoroalkyl substances (PFAS) are contaminants that are applied in a wide range of consumer products, including ski products. The present study investigated the neuro-dopamine (DA) and cellular steroid hormone homeostasis ... -
Blood and feather concentrations of toxic elements in a Baltic and an Arctic seabird population
Fenstad, Anette; Bustnes, Jan Ove; Lierhagen, Syverin; Gabrielsen, Kristin Møller; Öst, Markus; Jaatinen, Kim; Hanssen, Sveinn Are; Moe, Børge; Jenssen, Bjørn Munro; Krøkje, Åse (Journal article; Peer reviewed, 2017)Wereport blood and feather concentrations of elements in the Baltic Sea and Arctic population of common eiders (Somateria mollissima). The endangered Baltic Sea population of eiders was demonstrably affected by element ... -
Chemical Emissions from Indoor Materials in Residential Buildings; A Systematic Mapping Study
Saleem, Yusra (Master thesis, 2017)Exposure to residential emissions have previously been associated with adverse effects on wellness and productivity of the building occupants. This systematic mapping study was conducted with an aim to visually map together ... -
Circulating trace elements: Comparison between early and late incubation in common eiders (Somateria mollissima) in the central Baltic Sea
Mcpartland, Molly; Noori, Brenley; Garbus, Svend-Erik; Lierhagen, Syverin; Sonne, Christian; Krøkje, Åse (Peer reviewed; Journal article, 2020)We analyzed body mass and a panel of 64 trace elements in blood from incubating common eiders (Somateria mollissima) in the central Baltic Sea during the breeding seasons of 2017 (n = 27) and 2018 (n = 23). Using a ... -
Cytotoxicity and Genotoxicity of Functionalised Multi Walled Carbon Nanotubes in the PLHC-1 Cell Line
Ballestad, Marita (Master thesis, 2015)The field of nanotechnology is rapidly expanding in all sectors of society due to its increasingly large number of applications. This field deals with materials at the nanoscale, defined as having at least one dimension ... -
Deteksjon og kvantifisering av lipofile algetoksiner i skjell ved LC-MS/LC-MSMS
Guldberg, Trude Sophie Kristensen (Master thesis, 2013)Mikroskopiske plantealger kan danne marine algetoksiner i svært lave konsentrasjoner, og disse algetoksinene kan under gitte forhold akkumulere i skjell. I næringsmiddelsammenheng kan inntak av giftige skjell føre til ... -
DNA double strand breaks and chemical elements in incubating female common eiders (Somateria mollissima) in Christiansø, Denmark.
Noori, Brenley Marian Little (Master thesis, 2018)Genotoxic agents are ubiquitous in the Baltic Sea and may cause effects not only at a molecular level but at an individual and population level as well. Fasting during reproduction may lead to a state of oxidative stress ... -
DNA Double-Strand Breaks in Arctic Char, Salvelinus alpinus, from Bjørnøya
Neerland, Eirik Degnes (Master thesis, 2016)Long-range atmospheric transport has led to persistent organic pollutants (POPs) finding their way far from their sources of origin and into the Arctic and are accumulated in biota. The activity of large seabird colonies ... -
DNA double-strand breaks in relation to organohalogenated contaminants in arctic seabird species
Michelsen, Marit Vågenes (Master thesis, 2020)Organohalogenerte miljøgifter (OHCs) har blitt assosiert med ugunstige effekter på DNA- integriteten, noe som kan føre til alvorlige biologiske konsekvenser både på individ-og populasjonsnivå. Hensikten med denne studien ... -
DNA double-strand breaks in relation to persistent organic pollutants in a fasting seabird
Fenstad, Anette; Jenssen, Bjørn Munro; Moe, Børge; Hanssen, Sveinn Are; Bingham, Christopher George; Herzke, Dorte; Bustnes, Jan Ove; Krøkje, Åse (Journal article; Peer reviewed, 2014)Lipophilic persistent organic pollutants (POPs) are released from fat reserves during fasting, causing increased blood concentrations. Thus, POPs represent a potential anthropogenic stressor during fasting periods. We ... -
DNA double‐strand breaks in Arctic char (Salvelinus alpinus) from Bjørnøya in the Norwegian Arctic
Neerland, Eirik D.; Bytingsvik, Jenny; Nikiforov, Vladimir; Evenset, Anita; Krøkje, Åse (Journal article; Peer reviewed, 2019)High levels of organochlorine contaminants (OCs) have been found in arctic char (Salvelinus alpinus) from Lake Ellasjøen, Bjørnøya (Norwegian Arctic). The aim of the present study was to investigate the potential genotoxic ... -
DNA-double strand breaks in relation to PFASs and toxic elements in incubating female common eiders (Somateria mollissima) in the central Baltic Sea
McPartland, Molly Y. (Master thesis, 2019)Per- and polyfluorinated alkylated substances (PFASs) and toxic elements have both been linked to adverse effects on genetic material which can result in severe consequences for individuals and entire populations. The aim ... -
Effect of Cadmium on the marine diatoms Seminavis robusta and Phaeodactylum tricornutum: A comparative study
Madasamy Srinivasan Babu, Anitha (Master thesis, 2016)Background: Heavy metals cause a harmful effect on marine ecosystems because of their toxicity, persistence and bioaccumulation properties. Cadmium (Cd) is speculated to be a unique heavy metal due to its diverse toxic ... -
Effects of environmental exposure: Interplay between helix-distorting and oxidative DNA lesions and their repair
Lakså, Solveig Margrethe B. (Master thesis, 2012)DNA lesions are introduced in all living organisms every day, both via endogenous processes and by exposure to an array of DNA damaging agents. DNA lesions require repair for the sustenance of life. Base excision repair ... -
Effects of naphthenic North Atlantic crude oil on metabolome profile in Calanus finmarchicus
Cichosz, Ewa Agnieszka (Master thesis, 2018)Calanus finmarchicus is an ecologically important species in the North, Norwegian and Barents seas where marine biota is exposed to contaminants discharges due to oil and gas production and transportation. In this experiment, ... -
Exposure of juvenile turbot (Scophthalmus maximus) to AgNP-EE2 mixtures: Implications on contaminant bioavailability and plasma steroid hormone levels
Farkas, Julia; Salaberria, Iurgi; Styrishave, Bjarne; Stanková, Radka; Ciesielski, Tomasz Maciej; Olsen, Anders Johny; Posch, Wilfried; Flaten, Trond Peder; Krøkje, Åse; Salvenmoser, Willi; Jenssen, Bjørn Munro (Journal article; Peer reviewed, 2017)Combined exposure to engineered nanoparticles (ENPs) and anthropogenic contaminants can lead to changes in bioavailability, uptake and thus effects of both groups of contaminants. In this study we investigated effects of ... -
Expression of DNA repair genes in arctic char (Salvelinus alpinus) from Bjørnøya in the Norwegian Arctic
Inderberg, Helene; Neerland, Eirik D.; Mcpartland, Molly; Sparstad, Torfinn; Bytingsvik, Jenny; Nikiforov, Vladimir A; Evenset, Anita; Krøkje, Åse (Peer reviewed; Journal article, 2021)High levels of organochlorines (OCs) have been measured in arctic char (Salvelinus alpinus) from Lake Ellasjøen on Bjørnøya, Norway (74.30°N, 19.0°E). In a nearby lake, Laksvatn, the OC-levels in arctic char were low. A ... -
Genotoxic Effects in relation to Polycyclic Aromatic Hydrocarbons in Blood from Female Common Eiders (Somateria mollissima) in Arctic Environments
Bechmann, Astrid Solberg (Master thesis, 2016)Increasing intensity of shipping, off-shore oil exploitation and cruise ship tourism are expected to enhance the background levels of polycyclic aromatic hydrocarbons (PAHs) in Arctic areas. Studies on possible relationships ... -
Identifikasjon av ukjente legemidler og misbruksstoffer ved spektersøk på GCMS ved bruk av deconvolution software
Brede, Wenche Rødseth (Master thesis, 2009)Hensikt og problemstilling: Gasskromatografi-massespektrometri (GCMS) brukes ofte i laboratorier som utfører toksikologisk screening etter legemidler, giftstoffer og misbruksstoffer i biologiske prøver. Det kan imidlertid ... -
Induction of CYP 1A enzyme activity and genotoxicity from ternary mixtures of produced water relvant compounds, evaluated by in vitro methods
Størdal, Ingvild Fladvad (Master thesis, 2011)Produced water is a complex mixture discharged to sea in high volumes containing compounds at low concentrations. Compounds in mixtures can modify each other s expected toxic effect predicted from single exposure, and to ...