Now showing items 21-40 of 309

    • Increased microvascular permeability in mice lacking Epac1 (Rapgef3) 

      Kopperud, Reidun Kristin; Rygh, Cecilie Brekke; Karlsen, Tine Veronica; Krakstad, Camilla; Kleppe, Rune; Høivik, Erling Andre; Bakke, Marit; Tenstad, Olav; Selheim, Frode; Liden, Åsa; Madsen, Lise; Pavlin, Tina; Taxt, Torfinn; kristiansen, k; Curry, FE; Reed, Rolf K.; Doskeland, Stein Ove (Wiley, 2017-02)
      Aim: Maintenance of the blood and extracellular volume requires tight control of endothelial macromolecule permeability, which is regulated by cAMP signalling. This study probes the role of the cAMP mediators rap guanine ...
      Journal article
    • Post-translational modifications of Annexin A2 are linked to its association with perinuclear nonpolysomal mRNP complexes 

      Aukrust, Ingvild; Rosenberg, Linn Andersen; Ankerud, Mia Madeleine; Bertelsen, Vibeke; Hollås, Hanne; Saraste, Jaakko; Grindheim, Ann Kari; Vedeler, Anni (Wiley, 2017-02)
      Various post-translational modifications (PTMs) regulate the localisation and function of the multifunctional protein Annexin A2 (AnxA2). In addition to its various tasks as a cytoskeletal- and membrane-associated protein, ...
      Journal article
    • Structural aspects of nucleotide ligand binding by a bacterial 2H phosphoesterase 

      Myllykoski, Matti; Kursula, Petri (PLOS, 2017-01-31)
      The 2H phosphoesterase family contains enzymes with two His-X-Ser/Thr motifs in the active site. 2H enzymes are found in all kingdoms of life, sharing little sequence identity despite the conserved overall fold and active ...
      Journal article
    • Loss or mislocalization of aquaporin-4 affects diffusion properties and intermediary metabolism in gray matter of mice 

      Pavlin, Tina; Nagelhus, Erlend Arnulf; Brekken, Christian; Eyjolfsson, Elvar M.; Thoren, Anna; Haraldseth, Olav; Sonnewald, Ursula; Ottersen, Ole Petter; Håberg, Asta (Springer, 2017-01)
      The first aim of this study was to determine how complete or perivascular loss of aquaporin-4 (AQP4) water channels affects membrane permeability for water in the mouse brain grey matter in the steady state. Time-dependent ...
      Journal article
    • Antagonistic Functions of MBP and CNP Establish Cytosolic Channels in CNS Myelin 

      Snaidero, Nicolas; Velte, Caroline; Myllykoski, Matti; Raasakka, Arne; Ignatev, Alexander; Werner, Hauke B.; Erwig, Michelle S.; Möbius, Wiebke; Kursula, Petri; Nave, Klaus-Armin; Simons, Mikael (Elsevier, 2017-01)
      The myelin sheath is a multilamellar plasma membrane extension of highly specialized glial cells laid down in regularly spaced segments along axons. Recent studies indicate that myelin is metabolically active and capable ...
      Journal article
    • AMPA receptors at ribbon synapses in the mammalian retina: kinetic models and molecular identity 

      Hartveit, Espen; Zandt, Bas-Jan; Madsen, Eirik; Castilho, Aurea; Mørkve, Svein Harald; Veruki, Margaret Lin (Springer, 2017)
      In chemical synapses, neurotransmitter molecules released from presynaptic vesicles activate populations of postsynaptic receptors that vary in functional properties depending on their subunit composition. Differential ...
      Journal article
    • 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 (Nature Publishing Group, 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, ...
      Journal article
    • Insulin and GSK3β-inhibition abrogates the infarct sparing-effect of ischemic postconditioning in ex vivo rat hearts 

      Helgeland, Erik; Wergeland, Anita; Sandøy, Rune Kringstad; Askeland, Maren Haave; Aspevik, Anne; Breivik, Lars Ertesvåg; Jonassen, Anne K (Taylor & Francis, 2017)
      Objectives. Pharmacological treatment of reperfusion injury using insulin and GSK3β inhibition has been shown to be cardioprotective, however, their interaction with the endogenous cardioprotective strategy, ischemic ...
      Journal article
    • Implication of the APP gene in intellectual abilities 

      Myrum, Craig; Nikolaienko, Oleksii; Bramham, Clive R.; Haavik, Jan; Zayats, Tetyana (IOS Press, 2017)
      Background: Cognitive functions are highly heritable and polygenic, though the source of this genetic influence is unclear. On the neurobiological level, these functions rely on effective neuroplasticity, in which the ...
      Journal article
    • Tyrosine and tryptophan hydroxylases as therapeutic targets in human disease 

      Waløen, Kai; Kleppe, Rune; Martinez, Aurora; Haavik, Jan (Taylor & Francis, 2017)
      Introduction: The ancient and ubiquitous monoamine signalling molecules serotonin, dopamine, norepinephrine, and epinephrine are involved in multiple physiological functions. The aromatic amino acid hydroxylases tyrosine ...
      Journal article
    • Increased infiltration and tolerised antigen-specific CD8+ TEM cells in tumor but not peripheral blood have no impact on survival of HCMV+ glioblastoma patients 

      Bahador, Marzieh; Gras Navarro, Andrea; Rahman, Mohummad Aminur; Dominguez Valentin, Mev; Sarowar, Shahin; Ulvestad, Elling; Njølstad, Gro; Lie, Stein Atle; Kristoffersen, Einar Klæboe; Bratland, Eirik; Enger, Martha Chekenya (Taylor & Francis, 2017)
      Human cytomegalovirus (HCMV) antigens in glioblastoma (GBM) present opportunities for personalised immunotherapy. However, their presence in GBM tissue is still under debate, and evidence of their impact on functional ...
      Journal article
    • Surgical debulking promotes recruitment of macrophages and triggers glioblastoma phagocytosis in combination with CD47 blocking immunotherapy 

      Zhu, Huaiyang; Leiss, Lina Wik; Yang, Ning; Rygh, Cecilie Brekke; Mitra, Siddharta S.; Cheshier, Samuel H.; Weissman, Irving L.; Huang, Bin; Miletic, Hrvoje; Bjerkvig, Rolf; Enger, Per Øyvind; Li, Xingang; Wang, Jian (Impact Journals, 2017)
      Surgical resection is a standard component of treatment in the clinical management of patients with glioblastoma multiforme (GBM). However, experimental therapies are rarely investigated in the context of tumor debulking ...
      Journal article
    • Altered metabolic landscape in IDH‐mutant gliomas affects phospholipid, energy, and oxidative stress pathways 

      Fack, Fred; Tardito, Saverio; Hochart, Guillaume; Oudin, Anaïs; Zheng, Liang; Fritah, Sabrina; Golebiewska, Anna; Nazarov, Petr; Bernard, Amandine; Hau, Ann-Christin; Keunen, Olivier; Leenders, William P.J.; Lund-Johansen, Morten; Stauber, Jonathan; Gottlieb, Eyal; Bjerkvig, Rolf; Niclou, Simone Pierrette (EMBO Press, 2017)
      Heterozygous mutations in NADP‐dependent isocitrate dehydrogenases (IDH) define the large majority of diffuse gliomas and are associated with hypermethylation of DNA and chromatin. The metabolic dysregulations imposed by ...
      Journal article
    • Phosphorylation at serine 31 targets tyrosine hydroxylase tovesicles for transport along microtubules 

      Jorge Finnigan, Ana; Kleppe, Rune; K C, Kunwar Jung; Ying, Ming; Marie, Michael Bruno Eric; Rios Mondragon, Ivan; Salvatore, Michael F; Saraste, Jaakko; Martinez, Aurora (ASBMB, 2017)
      Tyrosine hydroxylase (TH) catalyzes the conversion of L-tyrosine into L-DOPA, which is the rate-limiting step in the synthesis of catecholamines, such as dopamine, in dopaminergergic neurons. Low dopamine levels and death ...
      Journal article
    • Long-term consumption of an obesogenic high fat diet prior to ischemia-reperfusion mediates cardioprotection via Epac1-dependent signaling 

      Edland, Fridtjov; Wergeland, Anita; Kopperud, Reidun Kristin; Åsrud, Kathrine Sivertsen; Hoivik, Erling A; Witsø, Solveig Lund; Æsøy, Reidun; Madsen, L; Kristiansen, K; Bakke, Marit; Doskeland, Stein Ove; Jonassen, Anne K (BioMed Central, 2016-11-28)
      Background: Obesity is still considered a risk factor for cardiovascular disease, although more recent knowledge also suggests obesity to be associated with reduced morbidity and mortality - the “obesity paradox”. ...
      Journal article
    • Online interactive analysis of protein structure ensembles with Bio3D-web 

      Skjærven, Lars; Jariwala, Shashank; Yao, Xin-Qiu; Grant, Barry J. (Oxford University Press, 2016-11)
      Bio3D-web is an online application for analyzing the sequence, structure and conformational heterogeneity of protein families. Major functionality is provided for identifying protein structure sets for analysis, their ...
      Journal article
    • Human tyrosine hydroxylase: Oxygen dependence and role in Dopa responsive dystonia 

      Fossbakk, Agnete (The University of Bergen, 2016-10-07)
      The aromatic amino acid hydroxylases (AAHs); phenylalanine hydroxylase (PAH), tyrosine hydroxylase (TH), tryptophan hydroxylase 1 and 2 (TPH 1/TPH 2); are structurally and functionally related enzymes. All AAHs require ...
      Doctoral thesis
    • Treatment with Bortezomib Sensitizes Glioblastoma Cells to Temozolomide 

      Sarowar, Shahin (The University of Bergen, 2016-09-01)
      Glioblastoma Multiforme (GBM) is the most frequent and aggressive primary brain cancer in adults. Despite multimodal treatment, prognosis remains dismal because efficacy is negligible in 50% of the patients with active, ...
      Master thesis
    • Dactolisib (NVP-BEZ235) toxicity in murine brain tumour models 

      Netland, I. A; Førde, H. E; Sleire, L.; Leiss, L.; Rahman, M. A; Skeie, B. S; Gjerde, C. H; Enger, P. Ø; Goplen, D. (BioMed Central, 2016-08-19)
      Background: Glioblastomas (GBMs) are highly malignant brain tumours with a poor prognosis, and current cytotoxic regimens provide only a limited survival benefit. The PI3K/Akt/mTOR pathway has been an attractive target ...
      Journal article
    • Quantitative analyses of the hepatic proteome of methylmercury-exposed Atlantic cod (Gadus morhua) suggest oxidative stress-mediated effects on cellular energy metabolism 

      Yadetie, Fekadu; Bjørneklett, Silje; Garberg, Hilde K; Oveland, Eystein; Berven, Frode; Goksøyr, Anders; Karlsen, Odd A (BioMed Central Ltd., 2016-08-05)
      Background: Methylmecury (MeHg) is a widely distributed environmental pollutant with considerable risk to both human health and wildlife. To gain better insight into the underlying mechanisms of MeHg-mediated toxicity, ...
      Journal article