Blar i Bergen Open Research Archive på forfatter "Bjørnstad, Ronja"

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    • Characterization of the renal function in Epac1 (RapGef3) knockout mice 

      Bjørnstad, Ronja (Master thesis, 2014-06-03)
      The discovery of the exchange proteins directly activated by cAMP (Epac) has renewed our knowledge of intracellular cAMP signaling. The Epac1 isoform (RapGef3) shows high expression level in the kidney. In vitro studies ...

    • Epac1 null mice have nephrogenic diabetes insipidus with deficient corticopapillary osmotic gradient and weaker collecting duct tight junctions 

      Åsrud, Kathrine Sivertsen; Bjørnstad, Ronja; Kopperud, Reidun Kristin; Pedersen, Line; van der Hoeven, Barbara; Karlsen, Tine Veronica; Rygh, Cecilie Brekke; Curry, Fitz-Roy; Bakke, Marit; Reed, Rolf K.; Tenstad, Olav; Døskeland, Stein Ove (Journal article; Peer reviewed, 2020)
      Aim The cAMP‐mediator Epac1 (RapGef3) has high renal expression. Preliminary observations revealed increased diuresis in Epac1−/− mice. We hypothesized that Epac1 could restrict diuresis by promoting transcellular collecting ...

    • Epac1-deficient mice have bleeding phenotype and thrombocytes with decreased GPIbβ expression 

      Nygaard, Gyrid; Herfindal, Lars; Åsrud, Kathrine Sivertsen; Bjørnstad, Ronja; Kopperud, Reidun Kristin; Oveland, Eystein; Berven, Frode; Myhren, Lene Elisabeth; Høivik, Erling Andre; Lunde, Turid Helen Felli; Bakke, Marit; Døskeland, Stein Ove; Selheim, Frode (Peer reviewed; Journal article, 2017)
      Epac1 (Exchange protein directly activated by cAMP 1) limits fluid loss from the circulation by tightening the endothelial barrier. We show here that Epac1−/− mice, but not Epac2−/− mice, have prolonged bleeding time, ...

    • A liposomal formulation of simvastatin and doxorubicin for improved cardioprotective and anti-cancer effect 

      Bjørnstad, Ronja; Reiten, Ingeborg Nerbø; Knudsen, Kaja Skålnes; Schjøtt, Jan Didrik; Herfindal, Lars (Journal article; Peer reviewed, 2022)
      Anthracyclines such as doxorubicin (Dox) are the preferred chemotherapeutics for several cancers. However, Dox-induced cardiotoxicity limits its therapeutic potential. Liposomal encapsulation of Dox has been used for ...