• Cerebrospinal fluid markers for synaptic function and Alzheimer type changes in late life depression 

      Siafarikas, Nikias Ioannis; Kirsebom, Bjørn-Eivind; Srivastava, Deepak P; Eriksson, Cecilia Magdalena; Auning, Eirik; Hessen, Erik; Selbæk, Geir; Blennow, Kaj; Aarsland, Dag; Fladby, Tormod (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-13)
      To explore markers for synaptic function and Alzheimer disease (AD) pathology in late life depression (LLD), predementia AD and normal controls (NC). A cross-sectional study to compare cerebrospinal fluid (CSF) levels of neurogranin (Ng), Beta-site amyloid-precursor-protein cleaving enzyme1 (BACE1), Ng/BACE1 ratio and Amyloid-β 42/40 ratio, phosphorylated-tau and total-tau in LLD with (LLD AD) or ...
    • CSF, Blood, and MRI Biomarkers in Skogholt’s Disease—A Rare Neurodegenerative Disease in a Norwegian Kindred 

      Aspli, Klaus Thanke; Aaseth, Jan; Holmøy, Trygve; Blennow, Kaj; Zetterberg, Henrik; Kirsebom, Bjørn-Eivind Seljelid; Fladby, Tormod; Selnes, Per (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-26)
      Skogholt’s disease is a rare neurological disorder that is only observed in a small Norwegian kindred. It typically manifests in adulthood with uncharacteristic neurological symptoms from both the peripheral and central nervous systems. The etiology of the observed cerebral white matter lesions and peripheral myelin pathology is unclear. Increased cerebrospinal fluid (CSF) concentrations of protein ...
    • Longitudinal cerebrospinal fluid measurements show glial hypo- and hyperactivation in predementia Alzheimer’s disease 

      Nordengen, Kaja; Kirsebom, Bjørn-Eivind Seljelid; Richter, Grit; Pålhaugen, Lene; Gisladottir, Berglind; Siafarikas, Nikias Ioannis; Nakling, Arne Exner; Rongve, Arvid; Bråthen, Geir; Grøntvedt, Gøril Rolfseng; Gonzalez, Fernando; Waterloo, Knut; Sharma, Kulbhushan; Karikari, Thomas; Vromen, Eleonora M.; Tijms, Betty M.; Visser, Pieter J.; Selnes, Per; Kramberger, Milicia G.; Winblad, Bengt; Blennow, Kaj; Fladby, Tormod (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-13)
      Background - Brain innate immune activation is associated with Alzheimer’s disease (AD), but degrees of activation may vary between disease stages. Thus, brain innate immune activation must be assessed in longitudinal clinical studies that include biomarker negative healthy controls and cases with established AD pathology. Here, we employ longitudinally sampled cerebrospinal fluid (CSF) core AD, ...
    • Stable cerebrospinal fluid neurogranin and β-site amyloid precursor protein cleaving enzyme 1 levels differentiate predementia Alzheimer's disease patients 

      Kirsebom, Bjørn-Eivind; Richter, Grit; Nordengen, Kaja; Aarsland, Dag; Bråthen, Geir; Tijms, Betty M; Visser, Pieter Jelle; Nilsson, Johanna; Selnes, Per; Kramberger, Milica G.; Winblad, Bengt; Waterloo, Knut; Gísladóttir, Berglind; Blennow, Kaj; Fladby, Tormod (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-24)
      Cerebrospinal fluid (CSF) β-site amyloid precursor protein cleaving enzyme 1 (BACE1), neurogranin and the neurogranin/BACE1 ratio are proposed markers for Alzheimer’s disease. BACE1 is also a drug target. However, CSF levels may differ between early-stage amyloid plaque formation (A) and later stage downstream tau-tangle pathology (T) and neurodegeneration (N) and may be expressed as an A/T/N stage ...