Browsing Brage NMBU by Author "Ropstad, Erik"
Now showing items 21-40 of 114
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Cortisol differentially affects cell viability and reproduction-related gene expression in Atlantic cod pituitary cultures dependent on stage of sexual maturation
von Krogh, Kristine; Bjørndal, Gunnveig Toft; Nourizadeh-Lillabadi, Rasoul; Ropstad, Erik; Haug, Trude; Weltzien, Finn-Arne (Journal article; Peer reviewed, 2019)Through the action of cortisol, stress can affect reproductive biology with behavioural and physiological alterations. Using mixed sex primary pituitary cultures from Atlantic cod (Gadus morhua), the present study aimed ... -
Determinants of heart rate in Svalbard reindeer reveal mechanisms of seasonal energy management
Trondrud, Liv Monica; Pigeon, Gabriel; Albon, Steve; Arnold, Walter; Evans, Alina; Irvine, R. Justin; Król, Elżbieta; Ropstad, Erik; Stien, Audun; Veiberg, Vebjørn; Speakman, John R.; Loe, Leif Egil (Peer reviewed; Journal article, 2021) -
Developmental exposure to a POPs mixture or PFOS increased body weight and reduced swimming ability but had no effect on reproduction or behavior in zebrafish adults
Christou, Maria; Ropstad, Erik; Brown, Stephen; Kamstra, Jorke Harmen; Fraser, Thomas (Peer reviewed; Journal article, 2021) -
DMSO effects larval zebrafish (Danio rerio) behavior, with additive and interaction effects when combined with positive controls
Christou, Maria; Kavaliauskis, Arturas; Ropstad, Erik; Fraser, Thomas (Peer reviewed; Journal article, 2019) -
Don't go chasing the ghosts of the past: habitat selection and site fidelity during calving in an Arctic ungulate
Paulsen, Ingrid M.; Soininen, Eeva M; Ravolainen, Virve; Loe, Leif Egil; Hansen, Brage Bremset; Irvine, Justin R; Stien, Audun; Ropstad, Erik; Veiberg, Vebjørn; Fuglei, Eva; Pedersen, Åshild Ønvik (Peer reviewed; Journal article, 2021)Arctic, calving, food availability, GPS, Rangifer tarandus platyrhynchus, remote sensing, site fidelity -
Effect of Naringenin, Quercetin, and Sesamin on Xenobiotica-Metabolizing CYP1A and CYP3A in Mice Offspring after Maternal Exposure to Persistent Organic Pollutants
Pilipenko, Nadezhda; Ropstad, Erik; Halsne, Ruth; Zamaratskaia, Galia (Journal article; Peer reviewed, 2017) -
Effects of a human-based mixture of persistent organic pollutants on the in vivo exposed cerebellum and cerebellar neuronal cultures exposed in vitro
Berntsen, Hanne Friis; Duale, Nur; Bjørklund, Cesilie Granum; Rangel-Huerta, Oscar Daniel; Dyrberg, Kine; Hofer, Tim; Rakkestad, Kirsten Eline; Østby, Gunn Charlotte; Halsne, Ruth; Boge, Gudrun Seeberg; Paulsen, Ragnhild Elisabeth; Myhre, Oddvar; Ropstad, Erik (Peer reviewed; Journal article, 2020)Exposure to persistent organic pollutants (POPs), encompassing chlorinated (Cl), brominated (Br) and perfluoroalkyl acid (PFAA) compounds is associated with adverse neurobehaviour in humans and animals, and is observed to ... -
Effects of Defined Mixtures of Persistent Organic Pollutants (POPs) on Pre-lethal Cytotoxicity in the Human A-498 Kidney Cell Line In Vitro
Amber, Mazia; Xie, Yuling; Berntsen, Hanne Friis; Zimmer, Karin Elisabeth; Ropstad, Erik; Verhaegen, Steven; Connolly, Lisa (Peer reviewed; Journal article, 2021)A total mixture of 29 persistent organic pollutants (POPs) modelled from Scandinavian blood concentrations was used to expose human A-498 kidney cells for 24 h over a concentration range spanning below to above blood level ... -
Effects of persistent organic pollutants (POPs) on the steroidogenesis of primary neonatal porcine Leydig cells
Bjørklund, Cesilie Granum (PhD thesis;2019:7, Doctoral thesis, 2019)After World War II the production of manmade chemicals has increased immensely. They are made to give desired practical properties and functions. Some are added to consumer products to provide conductivity, increase flame ... -
Effects of repeated captures on Svalbard reindeer (Rangifer tarandus platyrhyunchus) : implications for animal welfare and scientific bias
Ugland, Cassandra (Master thesis, 2021)Capturing and marking animals is an essential component of wildlife research. However, data gathered using invasive methods may lead to scientific bias and compromise animal welfare. It is therefore important to evaluate ... -
Environmental risk assessment of the pesticide Simplex with the active substances aminopyralid and fluroxypyr. Opinion of the Panel on plant protection products Norwegian Scientific Committee for Food Safety
Sverdrup, Line Emilie; Bjørge, Christine; Eklo, Ole Martin; Grung, Merete; Källqvist, Torsten; Klingen, Ingeborg; Låg, Marit; Rivedal, Edgar; Ropstad, Erik; Øvrebø, Steinar (VKM Report, Research report, 2010) -
Environmental risk assessment of the pesticide Simplex with the active substances aminopyralid and fluroxypyr. Opinion of the Panel on plant protection products Norwegian Scientific Committee for Food Safety
Sverdrup, Line Emilie; Bjørge, Christine; Eklo, Ole Martin; Källqvist, Torsten; Klingen, Ingeborg; Låg, Marit; Rivedal, Edgar; Ropstad, Erik; Øvrebø, Steinar; Grung, Merete (VKM Report, Research report, 2010) -
Evaluation of the arguments in the appeal from Bayer Crop Science of the decision made by The Norwegian Food Safety Authority on the fungicide Infinito with the active substances fluopicolide and propamocarb. Opinion of the Panel on plant protection products of the Norwegian Scientific Committee for Food Safety
Sverdrup, Line Emilie; Bjørge, Christine; Grung, Merete; Källqvist, Torsten; Klingen, Ingeborg; Låg, Marit; Ropstad, Erik (VKM Report, Research report, 2014) -
Evaluation of the arguments presented in the appeal of the rejection of the plant protection product Plenum 50 WG made by the Norwegian Food Safety Authority. Opinion of the Panel on Plant Protection Products of the Norwegian Scientific Committee for Food Safety
Sverdrup, Line Emilie; Bjørge, Christine; Eklo, Ole Martin; Grung, Merete; Källqvist, Torsten; Klingen, Ingeborg; Låg, Marit; Rivedal, Edgar; Ropstad, Erik; Øvrebø, Steinar (VKM Report, Research report, 2013) -
Exploring the short and long-term effects of developmental exposure in zebrafish exposed to anthropogenic chemicals
Christou, Maria (PhD Thesis;2020:44, Doctoral thesis, 2020)Persistent organic pollutants (POPs) are anthropogenic chemicals omnipresent in the environment and animal tissues. Due to their persistency they are rarely found as single compounds within organisms but rather in complex ... -
Exposure to a human relevant mixture of persistent organic pollutants or to perfluorooctane sulfonic acid alone dysregulates the developing cerebellum of chicken embryo
Yadav, Ajay; Verhaegen, Steven; Filis, Panagiotis; Domanska, Diana; Lyle, Robert; Sundaram, Arvind; Leithaug, Magnus; Østby, Gunn Charlotte; Aleksandersen, Mona; Berntsen, Hanne Friis; Zimmer, Karin Elisabeth; Fowler, Paul A.; Paulsen, Ragnhild Elisabeth Heimtun; Ropstad, Erik (Peer reviewed; Journal article, 2022)Prenatal exposure to persistent organic pollutants (POPs) is associated with neurodevelopmental disorders. In the present study, we explored whether a human-relevant POP mixture affects the development of chicken embryo ... -
Exposure to human relevant mixtures of halogenated persistent organic pollutants (POPs) alters neurodevelopmental processes in human neural stem cells undergoing differentiation
Davidsen, Nichlas; Lauvås, Anna Jacobsen; Myhre, Oddvar; Ropstad, Erik; Carpi, Donatella; Mendoza-de Gyves, Emilio; Berntsen, Hanne Friis; Dirven, Hubert; Paulsen, Ragnhild Elisabeth; Bal-Price, Anna; Pistollato, Francesca (Peer reviewed; Journal article, 2021)Halogenated persistent organic pollutants (POPs) like perfluorinated alkylated substances (PFASs), brominated flame retardants (BFRs), organochlorine pesticides and polychlorinated biphenyls (PCBs) are known to cause cancer, ... -
Fat storage influences fasting endurance more than body size in an ungulate
Trondrud, Liv Monica; Pigeon, Gabriel; Król, Elżbieta; Albon, Steve; Evans, Alina; Arnold, Walter; Hambly, Catherine; Irvine, R. Justin; Ropstad, Erik; Stien, Audun; Veiberg, Vebjørn; Speakman, John R.; Loe, Leif Egil (Peer reviewed; Journal article, 2021)The fasting endurance hypothesis (FEH) predicts strong selection for large body size in mammals living in environments where food supply is interrupted over prolonged periods of time. The Arctic is a highly seasonal and ... -
Frupica med det virksomme stoffet mepanipyrim: vurdering av svulstdannelse. Uttalelse fra Faggruppe for plantevernmidler
Sverdrup, Line Emilie; Bjørge, Christine; Eklo, Ole Martin; Grung, Merete; Källqvist, Torsten; Klingen, Ingeborg; Låg, Marit; Rivedal, Edgar; Ropstad, Erik; Øvrebø, Steinar (VKM Report, Research report, 2011) -
Frupica med det virksomme stoffet mepanipyrim: vurdering av svulstdannelse. Uttalelse fra Faggruppe for plantevernmidler
Sverdrup, Line Emilie; Bjørge, Christine; Eklo, Ole Martin; Klingen, Ingeborg; Källqvist, Torsten; Låg, Marit; Rivedal, Edgar; Ropstad, Erik; Øvrebø, Steinar; Grung, Merete (VKM Report, Research report, 2011)