Blar i Brage NMBU på forfatter "Ropstad, Erik"
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Helserisikovurdering av plantevernmidlet Gro-Stop Innovator med det virksomme stoffet klorprofam
Dybing, Erik; Eklo, Ole Martin; Klingen, Ingeborg; Källqvist, Torsten; Rivedal, Edgar; Ropstad, Erik; Skåre, Janneche Utne; Øvrebø, Steinar (VKM Report, Research report, 2008) -
High seasonal overlap in habitat suitability in a nonmigratory High Arctic ungulate
Pedersen, Åshild Ønvik; Soininen, Eeva M; Hansen, Brage Bremset; Le Moullec, Mathilde; Loe, Leif Egil; Paulsen, I.M.G.; Eischeid, Isabell; Karlsen, Stein Rune; Ropstad, Erik; Stien, Audun; Tarroux, Arnaud; Tømmervik, Hans; Ravolainen, Virve (Peer reviewed; Journal article, 2023)Understanding drivers of space use and habitat selection is essential for management and conservation, especially under rapid environmental change. Here, we develop summer and winter habitat suitability models for the ... -
Human blood-based exposure levels of persistent organic pollutant (POP)mixtures antagonise androgen receptor transactivation and translocation
McComb, J.; Mills, I.G.; Muller, M.; Berntsen, Hanne Friis; Zimmer, Karin Elisabeth; Ropstad, Erik; Verhaegen, Steven; Connolly, S. (Journal article; Peer reviewed, 2019)Introduction Human exposure to persistent organic pollutants (POPs) has been linked to genitourinary health-related conditions such as decreased sperm quality, hypospadias, and prostate cancer (PCa). Conventional risk ... -
A human relevant mixture of persistent organic pollutants (POPs) and perfluorooctane sulfonic acid (PFOS) enhance nerve growth factor (NGF)-induced neurite outgrowth in PC12 cells
Yadav, Ajay; Amber, Mazia; Zosen, Denis; Labba, Nils Anders; Huiberts, Eva Henriette Willemijn; Samulin-Erdem, Johanna Maria; Haugen, Fred; Berntsen, Hanne Friis; Zienolddiny, Shanbeh; Paulsen, Ragnhild Elisabeth; Ropstad, Erik; Connolly, Lisa; Verhaegen, Steven (Peer reviewed; Journal article, 2020)Disruption of neurite outgrowth is a marker for neurotoxicity. Persistent organic pollutants (POPs) are potential developmental neurotoxicants. We investigated their effect on neurite outgrowth in PC12 rat pheochromocytoma ... -
A human relevant mixture of persistent organic pollutants induces reactive oxygen species formation in isolated human leucocytes: Involvement of the β2-adrenergic receptor
Berntsen, Hanne Friis; Bodin, Johanna Eva; Øvrevik, Johan; Berntsen, Christopher Friis; Østby, Gunn Charlotte; Brinchmann, Bendik Christian; Ropstad, Erik; Myhre, Oddvar (Journal article; Peer reviewed, 2021)Exposure to chlorinated (Cl), brominated (Br) and perfluoroalkyl acid (PFAA) persistent organic pollutants (POPs) is associated with immunotoxicity and other adverse effects in humans and animals. Previous studies on POPs ... -
A human relevant mixture of persistent organic pollutants induces reactive oxygen species formation in isolated human leucocytes: Involvement of the β2-adrenergic receptor
Berntsen, Hanne Friis; Bodin, Johanna Eva; Øvrevik, Johan; Berntsen, Christopher Friis; Østby, Gunn Charlotte; Brinchmann, Bendik Christian; Ropstad, Erik; Myhre, Oddvar (Journal article; Peer reviewed, 2021)Exposure to chlorinated (Cl), brominated (Br) and perfluoroalkyl acid (PFAA) persistent organic pollutants (POPs) is associated with immunotoxicity and other adverse effects in humans and animals. Previous studies on POPs ... -
Human‑Based Exposure Levels of Perfluoroalkyl Acids May Induce Harmful Effects to Health by Disrupting Major Components of Androgen Receptor Signalling In Vitro
McComb, J.; Mills, I.G.; Berntsen, Hanne Friis; Ropstad, Erik; Verhaegen, Steven; Connolly, L. (Peer reviewed; Journal article, 2019) -
In Vitro Effects of Bisphenol A and Tetrabromobisphenol A on Cell Viability and Reproduction-Related Gene Expression in Pituitaries from Sexually Maturing Atlantic Cod (Gadus morhua L.)
von Krogh, Kristine; Weltzien, Finn-Arne; Haug, Trude; Nourizadeh-Lillabadi, Rasoul; Ropstad, Erik (Peer reviewed; Journal article, 2019) -
Inflammation in the pleural cavity following injection of multi-walled carbon nanotubes is dependent on their characteristics and the presence of IL-1 genes
Arnoldussen, Yke Jildouw; Skaug, Vidar; Aleksandersen, Mona; Ropstad, Erik; Anmarkrud, Kristine Haugen; Thornér, Elin Einarsdóttir; Lin, Fang-Chin; Bjørklund, Cesilie Granum; Kasem, Mayes; Eilertsen, Einar; Apte, Ron N.; Zienolddiny, Shanbeh (Journal article; Peer reviewed, 2018) -
Lamotrigine effects on immune gene expression in larval zebrafish
Mochol, Monika; Whatmore, Paul; Taubøll, Erik; Landmark, Cecilie Johannessen; Ropstad, Erik; Svalheim, Sigrid; Fraser, Thomas (Peer reviewed; Journal article, 2021) -
Lamotrigine effects on immune gene expression in larval zebrafish
Mochol, Monika; Whatmore, Paul; Taubøll, Erik; Landmark, Cecilie Johannessen; Ropstad, Erik; Svalheim, Sigrid; Fraser, Thomas WK (Journal article; Peer reviewed, 2021) -
Lipogenic Potency of Individual Perfuorinated Alkyl Acids (PFAAs) and Persistent Organic Pollutant (POP) Mixtures at Human Blood‑Based Exposure Levels on Adipogenesis in 3T3‑L1 Cells
Xie, Y.; Berntsen, Hanne Friis; Zimmer, Karin Elisabeth; Ropstad, Erik; Verhaegen, Steven; Connolly, L. (Peer reviewed; Journal article, 2021)In recent decades, the incidence of metabolic disorders has increased internationally. This increase has been linked to exposure to persistent organic pollutants (POPs), but little is known about the metabolic efects of ... -
Little impact of over-winter parasitism on a free-ranging ungulate in the high Arctic
Carlsson, Anja M.; Albon, Steve D.; Coulson, Stephen James; Ropstad, Erik; Stien, Audun; Wilson, Kenneth; Loe, Leif Egil; Veiberg, Vebjørn; Irvine, Robert Justin (Journal article; Peer reviewed, 2018)1. Macroparasites have a central place in wildlife ecology because they have the potential to regulate host populations through effects on reproduction and/or survival. However, there remains a paucity of studies that have ... -
Little impact of over-winter parasitism on a free-ranging ungulate in the high Arctic
Carlsson, Anja M.; Albon, Steve D.; Coulson, Stephen J.; Ropstad, Erik; Stien, Audun; Wilson, Kenneth; Loe, Leif Egil; Veiberg, Vebjørn; Irvine, Robert Justin (Journal article; Peer reviewed, 2018)1. Macroparasites have a central place in wildlife ecology because they have the potential to regulate host populations through effects on reproduction and/or survival. However, there remains a paucity of studies that have ... -
Maternal exposure to a human based mixture of persistent organic pollutants (POPs) affect gene expression related to brain function in mice offspring hippocampus
Myhre, Oddvar; Zimmer, Karin Elisabeth; Hudecova, Alexandra Misci; Hansen, Kristine Eraker Aasland; Khezri, Abdolrahman; Berntsen, Hanne Friis; Berg, Vidar; Lyche, Jan Ludvig; Mandal, Siddhartha; Duale, Nur; Ropstad, Erik (Peer reviewed; Journal article, 2021)Male and female mice pups were exposed to a low and high dose of a human relevant mixture of persistent organic pollutants (POPs) during pregnancy and lactation. Most compounds detected in the dams were found in offspring ... -
Maternal exposure to a human relevant mixture of persistent organic pollutants reduces colorectal carcinogenesis in A/J Min/+ mice
Johanson, Silje Modahl; Swann, Jonathan R.; Umu, Özgün Candan Onarman; Aleksandersen, Mona; Müller, Mette Helen Bjørge; Berntsen, Hanne Friis; Zimmer, Karin Elisabeth; Østby, Gunn Charlotte; Paulsen, Jan Erik; Ropstad, Erik (Peer reviewed; Journal article, 2020)An increased risk of developing colorectal cancer has been associated with exposure to persistent organic pollutants (POPs) and alteration in the gut bacterial community. However, there is limited understanding about the ... -
Membrane vesicles from Piscirickettsia salmonis induce protective immunity and reduce development of salmonid rickettsial septicemia in an adult zebrafish model
Tandberg, Julia Isabel; Oliver, Cristian; Lagos, Leidy; Gaarder, Mona; Yáñez, Alejandro J.; Ropstad, Erik; Winther-Larsen, Hanne Cecilie (Journal article; Peer reviewed, 2017) -
Metodedokument for helse- og miljørisikovurderinger. Faggruppe plantevernmidler. Vitenskapskomiteen for mattrygghet
Sverdrup, Line Charlotte; Bjørge, Christine; Eklo, Ole Martin; Grung, Merete; Källqvist, Torsten; Klingen, Ingeborg; Låg, Marit; Ropstad, Erik; Øvrebø, Steinar (VKM Report, Research report, 2012) -
Microcystins and Microcystis aeruginosa PCC7806 extracts modulate steroidogenesis differentially in the human H295R adrenal model
Mallia, Vittoria; Verhaegen, Steven; Styrishave, Bjarne; Eriksen, Gunnar Sundstøl; Johannesen, Malene Louise; Ropstad, Erik; Uhlig, Silvio (Peer reviewed; Journal article, 2020)The aim of this study was to investigate the potential interference of cyanobacterial metabolites, in particular microcystins (MCs), with steroid hormone biosynthesis. Steroid hormones control many fundamental processes ... -
Miljørisikovurdering av bruk av plantevernmidlet Merit Forest WG med det virksomme stoffet imidakloprid
Dybing, Erik; Eklo, Ole Martin; Klingen, Ingeborg; Källqvist, Torsten; Rivedal, Edgar; Ropstad, Erik; Skåre, Janneche Utne; Sverdrup, Line Emilie; Øvrebø, Steinar (VKM Report, Research report, 2007)