Browsing NTNU Open by Author "Scheffler, Katja"

Now showing items 1-19 of 19

    • 8-oxoguanine DNA glycosylase (Ogg1) controls hepatic gluconeogenesis 

      Scheffler, Katja; Rachek, Lyudmila; You, Panpan; Rowe, Alexander D.; Wang, Wei; Kuśnierczyk, Anna; Kittelsen, Lene Svendsen; Bjørås, Magnar; Eide, Lars (Journal article; Peer reviewed, 2018)
      Mitochondrial DNA (mtDNA) resides in close proximity to metabolic reactions, and is maintained by the 8-oxoguanine DNA glycosylase (Ogg1) and other members of the base excision repair pathway. Here, we tested the hypothesis ...

    • Age- and sex-dependent effects of DNA glycosylase Neil3 on amyloid pathology, adult neurogenesis, and memory in a mouse model of Alzheimer's disease 

      Egiazarian, Milena Armenovna; Strømstad, Silje; Sakshaug, Teri; Nunez-Nescolarde, Ana; Bethge, Nicole; Bjørås, Magnar; Scheffler, Katja (Peer reviewed; Journal article, 2022)
      Oxidative stress generating DNA damage has been shown to be a key characteristic in Alzheimer's disease (AD). However, how it affects the pathogenesis of AD is not yet fully understood. Neil3 is a DNA glycosylase initiating ...

    • Association of Klotho protein levels and KL-VS heterozygosity with Alzheimer disease and amyloid and tau burden 

      Grøntvedt, Gøril Rolfseng; Sando, Sigrid Botne; Lauridsen, Camilla; Bråthen, Geir; White, Linda Rosemary; Salvesen, Øyvind; Aarsland, Dag; Hessen, Erik; Fladby, Tormod; Waterloo, Knut K; Scheffler, Katja (Journal article; Peer reviewed, 2022)

    • Diverse functions of DNA glycosylases processing oxidative base lesions in brain 

      Scheffler, Katja; Bjørås, Karine Øian; Bjørås, Magnar (Peer reviewed; Journal article, 2019)
      Endogenous and exogenous oxidative agents continuously damage genomic DNA, with the brain being particularly vulnerable. Thus, preserving genomic integrity is key for brain health and neuronal function. Accumulation of DNA ...

    • DNA glycosylase Neil2 contributes to genomic responses in the spleen during clinical prion disease 

      Scheffler, Katja; Jalland, Clara Maria Osnes; Benestad, Sylvie L.; Moldal, Torfinn; Ersdal, Cecilie; Gunnes, Gjermund; Suganthan, Rajikala; Bjørås, Magnar; Tranulis, Michael A. (Peer reviewed; Journal article, 2020)
      The DNA glycosylase Neil2 is a member of the base excision repair (BER) family of enzymes, which are important for repair of oxidative DNA damage. Specifically, Neil2 participates in repair of oxidized bases in single-stranded ...

    • DNA glycosylase Neil3 regulates vascular smooth muscle cell biology during atherosclerosis development 

      Quiles-Jiménez, Ana M T; Gregersen, Ida; Segers, Filip; Skarpengland, Tonje; Kroustallaki, Pinelopi; Yang, Kuan; Kong, Xiang Yi; Lauritzen, Knut Husø; Olsen, Maria Belland; Karlsen, Tom Rune; Nyman, Tuula Anneli; Sagen, Ellen Lund; Bjerkeli, Vigdis; Suganthan, Rajikala; Nygård, Ståle; Scheffler, Katja; Prins, Jurriën; Van der Veer, Eric; Øgaard, Jonas; Fløisand, Yngvar; Jørgensen, Helle F.; Holven, Kirsten Bjørklund; Biessen, Erik A.L.; Nilsen, Hilde; Dahl, Tuva Børresdatter; Holm, Sverre; Bennett, Martin R.; Aukrust, Pål; Bjørås, Magnar; Halvorsen, Bente (Peer reviewed; Journal article, 2021)
      Background and aims Atherogenesis involves a complex interaction between immune cells and lipids, processes greatly influenced by the vascular smooth muscle cell (VSMC) phenotype. The DNA glycosylase NEIL3 has previously ...

    • HMST-Seq-Analyzer: A new python tool for differential methylation and hydroxymethylation analysis in various DNA methylation sequencing data 

      Farooq, Amna; Grønmyr, Sindre; Omer, Ali Avan; Rognes, Torbjørn; Scheffler, Katja; Bjørås, Magnar; Wang, Junbai (Peer reviewed; Journal article, 2020)
      DNA methylation (5mC) and hydroxymethylation (5hmC) are chemical modifications of cytosine bases which play a crucial role in epigenetic gene regulation. However, cost, data complexity and unavailability of comprehensive ...

    • NEIL1 and NEIL2 DNA glycosylases modulate anxiety and learning in a cooperative manner in mice 

      Hildrestrand, Gunn Annette; Rolseth, Veslemøy; Kunath, Nicolas; Suganthan, Rajikala; Jensen, Vidar; Bugaj, Anna Maria; Fernandez Berrocal, Marion Silvana; SIkko, Sunniva Bøe; Vetlesen, Susanne; Kusnierczyk, Anna; Olsen, Ann-Karin Hardie; Gutzkow, Kristine Bjerve; Rowe, Alexander D.; Wang, Wei; Moldestad, Olve; Syrstad, Monika; Slupphaug, Geir; Eide, Lars; Klungland, Arne; Sætrom, Pål; Luna, Luisa; Ye, Jing; Scheffler, Katja; Bjørås, Magnar (Peer reviewed; Journal article, 2021)
      Oxidative DNA damage in the brain has been implicated in neurodegeneration and cognitive decline. DNA glycosylases initiate base excision repair (BER), the main pathway for oxidative DNA base lesion repair. NEIL1 and NEIL3 ...

    • Neil3 induced neurogenesis protects against prion disease during the clinical phase 

      Jalland, Clara Maria Osnes; Scheffler, Katja; Benestad, Sylvie Lafond; Moldal, Torfinn; Ersdal, Cecilie; Gunnes, Gjermund; Suganthan, Rajikala; Bjørås, Magnar; Tranulis, Michael A. (Journal article; Peer reviewed, 2016)
      Base excision repair (BER) is the major pathway for repair of oxidative DNA damage. Mice with genetic knockout of the BER enzyme Neil3 display compromised neurogenesis in the sub-ventricular zone of the lateral ventricle ...

    • Neil3-dependent base excision repair regulates lipid metabolism and prevents atherosclerosis in Apoe-deficient mice 

      Skarpengland, Tonje; Holm, Sverre; Scheffler, Katja; Gregersen, Ida; Dahl, Tuva Børresdatter; Suganthan, Rajikala; Segers, Filip; Østlie, Ingunn; Otten, Jeroen J.T.; Gomez, Luisa Fernanda Luna; Ketelhuth, Daniel F.J.; Lundberg, Anna M.; Neurauter, Christine Gran; Hildrestrand, Gunn Annette; Skjelland, Mona; Bjørndal, Bodil; Svardal, Asbjørn M.; Iversen, Per Ole; Hedin, Ulf; Nygård, Ståle; Olstad, Ole Kristoffer; Krohg-Sørensen, Kirsten; Slupphaug, Geir; Eide, Lars; Kusnierczyk, Anna; Folkersen, Lasse; Ueland, Thor; Berge, Rolf Kristian; Hansson, Göran K.; Biessen, Erik A.L.; Halvorsen, Bente; Bjørås, Magnar; Aukrust, Pål (Peer reviewed; Journal article, 2016)
      Increasing evidence suggests that oxidative DNA damage accumulates in atherosclerosis. Recently, we showed that a genetic variant in the human DNA repair enzyme NEIL3 was associated with increased risk of myocardial ...

    • NEIL3-Dependent Regulation of Cardiac Fibroblast Proliferation Prevents Myocardial Rupture 

      Olsen, Maria Belland; Hildrestrand, Gunn Annette; Scheffler, Katja; Vinge, Leif Erik; Alfsnes, Katrine; Palibrk, Vuk; Wang, Junbai; Neurauter, Christine Gran; Gomez, Luisa Fernanda Luna; Johansen, Jostein; Øgaard, Jonas; Ohm, Ingrid Kristine; Slupphaug, Geir; Kusnierczyk, Anna; Fiane, Arnt E; Brorson, Sverre Henning; Zhang, Lili; Gullestad, Lars; Louch, William Edward; Iversen, Per Ole; Østlie, Ingunn; Klungland, Arne; Christensen, Geir Arve; Sjaastad, Ivar; Sætrom, Pål; Yndestad, Arne; Aukrust, Pål; Bjørås, Magnar; Finsen, Alexandra (Journal article; Peer reviewed, 2017)
      Myocardial infarction (MI) triggers a reparative response involving fibroblast proliferation and differentiation driving extracellular matrix modulation necessary to form a stabilizing scar. Recently, it was shown that a ...

    • Neuromodulatory effect of NLRP3 and ASC in neonatal hypoxic ischemic encephalopathy 

      Ystgaard, Martin Bogale; Scheffler, Katja; Suganthan, Rajikala; Bjørås, Magnar; Ranheim, Trine; Sagen, Ellen Lund; Halvorsen, Bente; Saugstad, Ola Didrik; Yndestad, Arne (Journal article; Peer reviewed, 2019)
      Background: Following birth asphyxia there is a robust inflammatory response. NLRP3 is a receptor of the innate immune system. Upon activation, NLRP3 forms an inflammasome together with ASC and procaspase-1 to mediate ...

    • No cancer predisposition or increased spontaneous mutation frequencies in NEIL DNA glycosylases-deficient mice 

      Rolseth, Veslemøy; Luna, Luisa; Olsen, Ann-Karin; Suganthan, Rajikala; Scheffler, Katja; Neurauter, Christine Gran; Esbensen, Qin Ying; Kusnierczyk, Anna; Hildrestrand, Gunn Annette; Graupner, Anne; Andersen, Jill Mari; Slupphaug, Geir; Klungland, Arne; Nilsen, Hilde; Bjørås, Magnar (Journal article; Peer reviewed, 2017)
      Base excision repair (BER) is a major pathway for removal of DNA base lesions and maintenance of genomic stability, which is essential in cancer prevention. DNA glycosylases recognize and remove specific lesions in the ...

    • Novel Epigenetic Signatures in Alzheimer’s Disease 

      Gray, Gabrielle (Master thesis, 2022)
      Millions of people are currently suffering from the neurodegenerative illness, Alzheimer’s disease (AD). This disease is currently untreatable and difficult to diagnose. Oxidative stress has been shown to impact AD and the ...

    • PML regulates neuroprotective innate immunity and neuroblast commitment in a hypoxic–ischemic encephalopathy model 

      Palibrk, Vuk; Suganthan, Rajikala; Scheffler, Katja; Wang, Wei; Bjørås, Magnar; Bøe, Stig Ove (Journal article; Peer reviewed, 2016)

    • Safety and efficacy of plasma transfusion from exercise - trained donors in patients with early Alzheimer’s disease: protocol for the ExPlas study 

      Tari, Atefe R; Berg, Helene Haugen; Videm, Vibeke; Bråthen, Geir; White, Linda Rosemary; Røsbjørgen, Ragnhild; Scheffler, Katja; Dalen, Håvard; Holte, Espen; Håberg, Asta Kristine; Selbæk, Geir; Lydersen, Stian; Duezel, Emrah; Bergh, Sverre; Logan-halvorsrud, Kjell Rune; Sando, Sigrid Botne; Wisløff, Ulrik (Peer reviewed; Journal article, 2022)
      Introduction Given that exercise training reduces the risk of developing Alzheimer’s disease (AD), induces changes in the blood composition and has widespread systemic benefits, it is reasonable to hypothesise that exercised ...

    • Synergistic Actions of Ogg1 and Mutyh DNA Glycosylases Modulate Anxiety-like Behavior in Mice 

      Bjørge, Monica Dahl; Hildrestrand, Gunn Annette; Scheffler, Katja; Suganthan, Rajikala; Rolseth, Veslemøy; Kusnierczyk, Anna; Rowe, Alexander D.; Vågbø, Cathrine Broberg; Vetlesen, Susanne; Eide, Lars; Slupphaug, Geir; Yusaku, Nakabeppu; Timothy, Bredy; Klungland, Arne; Bjørås, Magnar (Journal article; Peer reviewed, 2015)
      Ogg1 and Mutyh DNA glycosylases cooperate to prevent mutations caused by 8-oxoG, a major premutagenic DNA lesion associated with cognitive decline. We have examined behavior and cognitive function in mice deficient of these ...

    • The regulation of neuroinflammation by oxidative DNA base lesion repair 

      Sakshaug, Teri (Master thesis, 2020)
      Current research shows that altered microglia activity and persistent neuroinflammation are underlying factors to neurological diseases such as Alzheimer's, Parkinson's, multiple sclerosis and psychiatric illnesses. ...

    • Use of CRISPR/Cas9-Mediated Genome Editing in Human Induced Pluripotent Stem Cells to Study Oxidative Base Lesion Repair in Cerebral Organoids 

      Núñez Nescolarde, Ana Beatriz (Master thesis, 2020)
      The role of DNA glycosylase OGG1 beyond the base excision repair (BER) pathway involves regulation of brain development and function. However, the molecular mechanisms remain to be unravelled. Here, we describe a reliable ...