• Age-adjusted CSF t-tau and NfL do not improve diagnostic accuracy for prodromal Alzheimer’s Disease 

      Knudtzon, Stephanie; Nordengen, Kaja; Grøntvedt, Gøril Rolfseng; Jarholm, Jonas Alexander; Eliassen, Ingvild Vøllo; Selnes, Per; Pålhaugen, Lene; Espenes, Johan Jacob; Gisladottir, Berglind; Waterloo, Knut K; Fladby, Tormod; Kirsebom, Bjørn-Eivind Seljelid (Journal article; Peer reviewed, 2024)
      Cerebrospinal fluid total-tau (t-tau) and neurofilament light chain (NfL) are biomarkers of neurodegeneration and are increased in Alzheimer’s disease (AD). In order to adjust for age-related increases in t-tau and NfL, ...
    • Cerebrospinal fluid neurofilament light chain mediates age-associated lower learning and memory in healthy adults 

      Hemminghyth, Mathilde Suhr; Chwiszczuk, Luiza; Breitve, Monica Haraldseid; Gisladottir, Berglind; Grøntvedt, Gøril Rolfseng; Nakling, Arne Exner; Rongve, Arvid; Fladby, Tormod; Kirsebom, Bjørn-Eivind Seljelid (Peer reviewed; Journal article, 2023)
      Multiple cognitive domains, including learning, memory, and psychomotor speed, show significant reductions with age. Likewise, several cerebrospinal fluid (CSF) neurodegenerative biomarkers, including total tau (t-tau, a ...
    • Cerebrospinal fluid neurogranin/β-site APP-cleaving enzyme 1 predicts cognitive decline in preclinical Alzheimer's disease 

      Kirsebom, Bjørn-Eivind; Nordengen, Kaja; Selnes, Per; Waterloo, Knut; Torsetnes, Silje Bøen; Gisladottir, Berglind; Brix, Britta; Eugeen, Vanmechelen; Bråthen, Geir; Hessen, Erik; Aarsland, Dag; Fladby, Tormod (Journal article; Peer reviewed, 2018)
      Introduction The cerebrospinal fluid neurogranin (Ng)/β-site amyloid precursor protein-cleaving enzyme 1 (BACE1) ratio may reflect synaptic affection resulting from reduced beta-amyloid (Aβ) clearance. We hypothesize that ...
    • Glial activation and inflammation along the Alzheimer's disease continuum 

      Nordengen, Kaja; Kirsebom, Bjørn-Eivind; Henjum, Kristi; Selnes, Per; Gisladottir, Berglind; Wettergreen, Marianne; Torsetnes, Silje Bøen; Grøntvedt, Gøril Rolfseng; Waterloo, Knut; Aarsland, Dag; Nilsson, Lars; Fladby, Tormod (Journal article; Peer reviewed, 2019)
      Background Neuronal and glial cell interaction is essential for synaptic homeostasis and may be affected in Alzheimer’s disease (AD). We measured cerebrospinal fluid (CSF) neuronal and glia markers along the AD continuum, ...
    • Investigating the relationship between allocentric spatial working memory and biomarker status in preclinical and prodromal Alzheimer’s disease. 

      Lorentzen, Ingrid Myrvoll; Espenes, Johan Jacob; Eliassen, Ingvild Vøllo; Hessen, Erik; Waterloo, Knut K; Nakling, Arne Exner; Gisladottir, Berglind; Jarholm, Jonas Alexander; Fladby, Tormod; Kirsebom, Bjørn-Eivind (Peer reviewed; Journal article, 2023)
      The 4 Mountain Test (4MT) is a test of allocentric spatial working memory and has been proposed as an earlier marker of predementia Alzheimer’s disease (AD) than episodic verbal memory. We here compare the 4MT to the CERAD ...
    • 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 (Peer reviewed; Journal article, 2023)
      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 ...
    • Plasma brain-derived tau is an amyloid-associated neurodegeneration biomarker in Alzheimer’s disease 

      Gonzalez-Ortiz, Fernando; Kirsebom, Bjørn-Eivind Seljelid; Contador, José; Tanley, Jordan E.; Selnes, Per; Gisladottir, Berglind; Pålhaugen, Lene; Hemminghyth, Mathilde Suhr; Jarholm, Jonas Alexander; Skogseth, Ragnhild Eide; Bråthen, Geir; Grøndtvedt, Gøril; Bjørnerud, Atle; Tecelao, Sandra; Waterloo, Knut; Aarsland, Dag; Fernández-Lebrero, Aida; García-Escobar, Greta; Navalpotro-Gómez, Irene; Turton, Michael; Hesthamar, Agnes; Kac, Przemyslaw R.; Nilsson, Johanna; Luchsinger, Jose; Hayden, Kathleen M.; Harrison, Peter; Puig-Pijoan, Albert; Zetterberg, Henrik; Hughes, Timothy M.; Suárez-Calvet, Marc; Karikari, Thomas K.; Fladby, Tormod; Blennow, Kaj (Journal article; Peer reviewed, 2024)
      Staging amyloid-beta (Aβ) pathophysiology according to the intensity of neurodegeneration could identify individuals at risk for cognitive decline in Alzheimer’s disease (AD). In blood, phosphorylated tau (p-tau) associates ...