Browsing Department of Biomedicine by Title

Now showing items 204-223 of 553

    • Fluid transport from the dental pulp revisited. 

      Berggreen, Ellen; Wiig, Helge; Virtej, Anca (Journal article; Peer reviewed, 2020-10)
      In the dental pulp surrounded by rigid dentinal walls, an increase in fluid volume will be followed by a rapid increase in interstitial fluid pressure. To maintain pressure homeostasis, a fluid drainage system is required. ...

    • Fractional anisotropy shows differential reduction in frontal-subcortical fiber bundles - A longitudinal MRI study of 76 middle-aged and older adults 

      Vik, Alexandra; Hodneland, Erlend; Haász, Judit; Ystad, Martin Andreas; Lundervold, Astri; Lundervold, Arvid (Peer reviewed; Journal article, 2015-05-15)
      Motivated by the frontal- and white matter (WM) retrogenesis hypotheses and the assumptions that fronto-striatal circuits are especially vulnerable in normal aging, the goal of the present study was to identify fiber bundles ...

    • Function and regulation of phenylalanine and tyrosine hydroxylases from human and Caenorhabditis elegans. With focus in evolutionary aspects and development of new therapies 

      Calvo, Ana C. (Doctoral thesis, 2010-06-11)
      The family of the aromatic amino acid hydroxylases (AAAH) is well studied in mammals. It includes four members, i.e. phenylalanine hydroxylase (PAH), tyrosine hydroxylase (TH) and the tryptophan hydroxylases (TPH1 and 2). ...

    • A function of profilin in force generation during malaria parasite motility that is independent of actin binding 

      Moreau, Catherine A.; Quadt, Katharina A.; Piirainen, Henni; Kumar, Hirdesh; Bhargav, Saligram P.; Strauss, Léanne; Tolia, Niraj H; Wade, Rebecca C.; Spatz, Joachim P; Kursula, Inari; Frischknecht, Friedrich (Journal article; Peer reviewed, 2020)
      During transmission of malaria-causing parasites from mosquito to mammal, Plasmodium sporozoites migrate at high speed within the skin to access the bloodstream and infect the liver. This unusual gliding motility is based ...

    • Functional NMDA receptors are expressed by both AII and A17 amacrine cells in the rod pathway of the mammalian retina 

      Zhou, Yifan; Tencerova, Barbora; Hartveit, Espen; Veruki, Margaret Lin (Journal article, 2016-01)
      At many glutamatergic synapses, non-N-methyl-d-aspartate (NMDA) and NMDA receptors are coexpressed postsynaptically. In the mammalian retina, glutamatergic rod bipolar cells are presynaptic to two rod amacrine cells (AII ...

    • Functional p53 is required for rapid restoration of daunorubicin-induced lesions of the spleen 

      Herfindal, Lars; Myhren, Lene Elisabeth; Gjertsen, Bjørn Tore; Døskeland, Stein Ove; Gausdal, Gro (Peer reviewed; Journal article, 2013-07-11)
      Background: The tumour suppressor and transcription factor p53 is a major determinant of the therapeutic response to anthracyclines. In healthy tissue, p53 is also considered pivotal for side effects of anthracycline ...

    • A Functional Role of GAS6/TAM in Nonalcoholic Steatohepatitis Progression Implicates AXL as Therapeutic Target 

      Tutusaus, Anna; de Gregorio, Estefanía; Cucarull, Blanca; Cristóbal, Helena; Aresté, Cristina; Graupera, Isabel; Coll, Mar; Colell, Anna; Gausdal, Gro; Lorens, James; García de Frutos, Pablo; Morales, Albert; Marí, Montserrat (Peer reviewed; Journal article, 2019)
      Background and Aims GAS6 signaling, through the TAM receptor tyrosine kinases AXL and MERTK, participates in chronic liver pathologies. Here, we addressed GAS6/TAM involvement in Non-Alcoholic SteatoHepatitis (NASH) ...

    • Functional studies of tyrosine hydroxylase missense variants reveal distinct patterns of molecular defects in dopa-responsive dystonia 

      Fossbakk, Agnete; Kleppe, Rune; Knappskog, Per; Martinez, Aurora; Haavik, Jan (Peer reviewed; Journal article, 2014-06-03)
      Congenital tyrosine hydroxylase deficiency (THD) is found in autosomal-recessive Dopa-responsive dystonia and related neurological syndromes. The clinical manifestations of THD are variable, ranging from early-onset lethal ...

    • Functions and Regulation of eukaryotic NAD kinase - an essential enzyme for NADP biosynthesis 

      Pollak, Nadine (Doctoral thesis, 2008-02-15)
      NAD and NADP, both major carriers of cellular reducing equivalents, are of vital importance in diverse metabolic and signaling processes. Efficient maintenance and regulation of the reduction-oxidation status is therefore ...

    • Fusion pore regulation by cAMP/Epac2 controls cargo release during insulin exocytosis 

      Gucek, Alenka; Gandasi, Nikhil R.; Omar-Hmeadi, Muhmmad; Bakke, Marit; Doskeland, Stein Ove; Tengholm, Anders; Barg, Sebastian (Peer reviewed; Journal article, 2019-05-20)
      Regulated exocytosis establishes a narrow fusion pore as initial aqueous connection to the extracellular space, through which small transmitter molecules such as ATP can exit. Co-release of polypeptides and hormones like ...

    • G Protein-Gated Inwardly Rectifying Potassium Channel Subunit 3 Is Upregulated in Rat DRGs and Spinal Cord After Peripheral Nerve Injury 

      Lyu, Chuang; Lyu, Gong-Wei; Mulder, Jan; Martinez, Aurora; Shi, Tie-Jun (Journal article; Peer reviewed, 2020)
      Background: G protein-gated inwardly rectifying potassium (GIRK) channels are involved in the regulation of neuronal excitability. Four GIRK subunits (GIRK1-4) are expressed in rat dorsal root ganglia (DRGs). Recently, we ...

    • GADL1 is a multifunctional decarboxylase with tissue-specific roles in β-alanine and carnosine production 

      Mahootchi, Elaheh; Homaei, Selina Cannon; Kleppe, Rune; Winge, Ingeborg; Hegvik, Tor-Arne; Perez, Roberto Megias; Totland, Christian; Mogavero, Floriana; Baumann, Anne; Glennon, Jeffrey Colm; Miletic, Hrvoje; Kursula, Petri; Haavik, Jan (Journal article; Peer reviewed, 2020)
      Carnosine and related β-alanine–containing peptides are believed to be important antioxidants, pH buffers, and neuromodulators. However, their biosynthetic routes and therapeutic potential are still being debated. This ...

    • Gamma knife surgery as monotherapy with clinically relevant doses prolongs survival in a Human GBM Xenograft Model 

      Skeie, Bente Sandvei; Wang, Jian; Dodoo, Ernest; Heggdal, Jan Ingemann; Grønli, Janne; Sleire, Linda; Bragstad, Sidsel Marit; Ganz, Jeremy Christopher; Chekenya, Martha; Mørk, Sverre; Pedersen, Paal-Henning; Enger, Per Øyvind (Peer reviewed; Journal article, 2013)
      Object. Gamma knife surgery (GKS) may be used for recurring glioblastomas (GBMs). However, patients have then usually undergone multimodal treatment, which makes it difficult to specifically validate GKS independent of ...

    • Gender Differences in Psychiatric Comorbidity: Population-based study of 40,000 Adults with Attention-Deficit Hyperactivity Disorder 

      Solberg, Berit Skretting; Halmøy, Anne; Engeland, Anders; Igland, Jannicke; Haavik, Jan; Klungsøyr, Kari (Peer reviewed; Journal article, 2017-12-21)
      OBJECTIVE: We aimed at determining whether gender modified associations between ADHD and psychiatric comorbidities in adults. METHOD: We identified adults with ADHD by linking Norwegian national registries and compared ...

    • Gene expression in tumor cells and stroma in dsRed 4T1 tumors in eGFP-expressing mice with and without enhanced oxygenation 

      Moen, Ingrid; Jevne, Alison Charlotte; Wang, Jian; Kalland, Karl-Henning; Chekenya, Martha; Akslen, Lars A.; Sleire, Linda; Enger, Per Øyvind; Reed, Rolf K.; Øyan, Anne Margrete; Stuhr, Linda Elin Birkhaug (Peer reviewed; Journal article, 2012-01-17)
      Background The tumor microenvironment is pivotal in tumor progression. Thus, we aimed to develop a mammary tumor model to elucidate molecular characteristics in the stroma versus the tumor cell compartment by global gene ...

    • Generation of a novel mouse strain with fibroblast-specific expression of Cre recombinase 

      Alam, Jahedul; Musiime, Moses; Romaine, Andreas; Sawant, Mugdha; Melleby, Arne Olav; Lu, Ning; Eckes, Beate; Christensen, Geir; Gullberg, Donald (Journal article; Peer reviewed, 2020)
      Cell-specific expression of genes offers the possibility to use their promoters to drive expression of Cre-recombinase, thereby allowing for detailed expression analysis using reporter gene systems, cell lineage tracing, ...

    • Genetic association study of childhood aggression across raters, instruments, and age 

      Ip, Hill F.; van der Laan, Camiel M.; Krapohl, Eva M. L.; Brikell, Isabell; Sánchez-Mora, Cristina; Nolte, Ilja M.; Pourcain, Beate St; Bolhuis, Koen; Palviainen, Teemu; Zafarmand, Hadi; Colodro-Conde, Lucía; Gordon, Scott; Zayats, Tetyana; Aliev, Fazil; Jiang, Chang; Wang, Carol A.; Saunders, Gretchen; Karhunen, Ville; Hammerschlag, Anke R.; Adkins, Daniel E.; Border, Richard; Peterson, Roseann E.; Prinz, Joseph A.; Thiering, Elisabeth; Seppälä, Iikka; Vilor-Tejedor, Natàlia; Ahluwalia, Tarunveer S.; Day, Felix R.; Hottenga, Jouke-Jan; Allegrini, Andrea G.; Rimfeld, Kaili; Chen, Qi; Yi, Lu; Martin, Joanna; Soler Artigas, Marìa; Rovira, Paula; Bosch, Rosa; Español, Gemma; Ramos-Quiroga, Josep Antonio; Neumann, Alexander; Haavik, Jan; Harris, Jennifer Ruth; Helgeland, Øyvind; Johansson, Stefan; Knudsen, Gun Peggy Strømstad; Njølstad, Pål Rasmus; Havdahl, Alexandra; Magnus, Per Minor; Reichborn-Kjennerud, Ted; Boomsma, Dorret I. (Journal article; Peer reviewed, 2021)
      Childhood aggressive behavior (AGG) has a substantial heritability of around 50%. Here we present a genome-wide association meta-analysis (GWAMA) of childhood AGG, in which all phenotype measures across childhood ages from ...

    • Genome wide association study identifies variants in NBEA associated with migraine in bipolar disorder 

      Jacobsen, Kaya Kvarme; Nievergelt, Caroline M.; Zayats, Tetyana; Greenwood, Tifany A.; Anttila, Verneri; Akiskal, Hagop Souren; Haavik, Jan; Fasmer, Ole Bernt; Kelsoe, John R.; Johansson, Stefan; Ødegaard, Ketil Joachim (Peer reviewed; Journal article, 2015-10-12)
      Background. Migraine is a common comorbidity among individuals with bipolar disorder, but the underlying mechanisms for this co-occurrence are poorly understood. The aim of this study was to investigate the genetic background ...

    • Genome-wide analysis of attention deficit hyperactivity disorder in Norway 

      Zayats, Tetyana; Athanasiu, Lavinia; Sønderby, Ida Elken; Djurovic, Srdjan; Westlye, Lars Tjelta; Tamnes, Christian Krog; Fladby, Tormod; Aase, Heidi; Zeiner, Pål; Reichborn-Kjennerud, Ted; Knappskog, Per; Knudsen, Gun Peggy; Andreassen, Ole Andreas; Johansson, Stefan; Haavik, Jan (Peer reviewed; Journal article, 2015-04-13)
      Background Attention deficit hyperactivity disorder (ADHD) is a highly heritable neuropsychiatric condition, but it has been difficult to identify genes underlying this disorder. This study aimed to explore genetics of ...

    • Glioblastoma organoids: pre-clinical applications and challenges in the context of immunotherapy 

      Klein, Eliane; Hau, Ann-Christin; Oudin, Anaïs; Golebiewska, Anna; Niclou, Simone Pierrette (Journal article; Peer reviewed, 2020-12-08)
      Malignant brain tumors remain uniformly fatal, even with the best-to-date treatment. For Glioblastoma (GBM), the most severe form of brain cancer in adults, the median overall survival is roughly over a year. New therapeutic ...