• Combinatory microRNA serum signatures as classifiers of Parkinson's disease 

      Patil, Ketan S.; Basak, Indranil; Dalen, Ingvild; Hoedt, Esthelle; Lange, Johannes; Lunde, Kristin Aaser; Liu, Ying; Tysnes, Ole-Bjørn; Forsgren, Lars; Aarsland, Dag; Neubert, Thomas A.; Larsen, Jan Petter; Alves, Guido Werner; Møller, Simon Geir (Journal article; Peer reviewed, 2019-04)
      As current clinical diagnostic protocols for Parkinson's disease (PD) may be prone to inaccuracies there is a need to identify and validate molecular biomarkers, such as circulating microRNAs, which will complement current ...
    • Fatigue in Parkinson's Disease: A Proteomic Study of Cerebrospinal Fluid 

      Eidem, Live Egeland; Birkeland, Even; Austdal, Marie; Bårdsen, Kjetil; Lange, Johannes; Alves, Guido Werner; Berven, Frode Steingrimsen; Nilsen, Mari Mæland; Herlofson, Karen; Tysnes, Ole-Bjørn; Omdal, Roald (Peer reviewed; Journal article, 2024-01)
      Many factors have been linked to fatigue in patients with Parkinson's disease (PD), including age, female sex, disease severity, depression, cognition, sleep disturbances, activities of daily living, and the use of dopamine ...
    • Kynurenines, Neuropsychiatric Symptoms, and Cognitive Prognosis in Patients with Mild Dementia 

      Solvang, Stein-Erik Hafstad; Nordrehaug, Jan Erik; Aarsland, Dag; Lange, Johannes; Ueland, Per Magne; McCann, Adrian; Midttun, Øivind; Tell, Grethe S.; Melvær, Giil Lasse (Journal article; Peer reviewed, 2019-09)
      Introduction: Circulating tryptophan (Trp) and its downstream metabolites, the kynurenines, are potentially neuroactive. Consequently, they could be associated with neuropsychiatric symptoms and cognitive prognosis in ...
    • Serum neurofilament light at diagnosis: a prognostic indicator for accelerated disease progression in Parkinson’s Disease 

      Pedersen, Camilla Christina; Ushakova, Anastasia; Alves, Guido Werner; Tysnes, Ole-Bjørn; Blennow, Kaj; Zetterberg, Henrik; Maple-Grødem, Jodi; Lange, Johannes (Peer reviewed; Journal article, 2024)
      Neurofilament light chain (NFL) is elevated in neurodegenerative diseases, including Parkinson’s disease (PD). This study aimed to investigate serum NFL in newly diagnosed PD and its association with cognitive and motor ...
    • A systematic review of biofluid phosphorylated α-synuclein in Parkinson's disease 

      Pedersen, Camilla Christina; Maple-Grødem, Jodi; Lange, Johannes (Peer reviewed; Journal article, 2024-12)
      Introduction Parkinson's disease (PD) is a progressive neurodegenerative disease, and biomarkers are needed to enhance earlier detection and monitoring. Alpha-synuclein, phosphorylated at serine 129 (pS129-α-syn), is the ...
    • The value of cerebrospinal fluid alpha-synuclein and the tau/alpha-synuclein ratio for diagnosis of neurodegenerative disorders with Lewy pathology 

      Førland, Marthe Gurine; Tysnes, Ole-Bjørn; Aarsland, Dag; Maple-Grødem, Jodi; Pedersen, Kenn Freddy; Alves, Guido Werner; Lange, Johannes (Journal article; Peer reviewed, 2019-07)
      Background and purpose Parkinson's disease (PD), dementia with Lewy bodies (DLB) and Alzheimer's disease (AD) are three of the most common neurodegenerative disorders. Up to 20% of these patients have the wrong diagnosis, ...
    • Validation and assessment of preanalytical factors of a fluorometric in vitro assay for glucocerebrosidase activity in human cerebrospinal fluid 

      Oftedal, Linn; Maple-Grødem, Jodi; Førland, Marthe Gurine; Alves, Guido Werner; Lange, Johannes (Peer reviewed; Journal article, 2020-12)
      Lysosomal dysfunction is an emerging feature in the pathology of Parkinson’s disease and Dementia with Lewy bodies. Mutations in the GBA gene, encoding the enzyme Glucocerebrosidase (GCase), have been identified as a genetic ...