Academic article

• Boyle, Lydia; Patrascu, Monica; Husebø, Bettina Elisabeth Franziska et al. (2025). Use of Digital Biomarkers from Sensing Technologies to Explore the Relationship Between Daytime Activity Levels and Sleep Quality in Nursing Home Residents with Dementia: A Proof-of-Concept Study. (external link)
• Boyle, Lydia; Marty, Brice Sylvain Daniel; Haugarvoll, Kristoffer et al. (2025). Selecting a smartwatch for trials involving older adults with neurodegenerative diseases: A researcher's framework to avoid hidden pitfalls. (external link)
• Kverneng, Simon Ulvenes; Stige, Kjersti Eline; Berven, Haakon et al. (2025). Mitochondrial complex I deficiency occurs in skeletal muscle of a subgroup of individuals with Parkinson’s disease. (external link)
• Titlestad, Irit; Haugarvoll, Kristoffer; Solvang, Stein-Erik Hafstad et al. (2024). Delirium is frequently underdiagnosed among older hospitalised patients despite available information in hospital medical records. (external link)
• Gaare, Johannes Jernqvist; Dölle, Christian; Brakedal, Brage et al. (2023). Nicotinamide riboside supplementation is not associated with altered methylation homeostasis in Parkinson's disease. (external link)
• Berven, Haakon; Kverneng, Simon Ulvenes; Sheard, Erika et al. (2023). NR-SAFE: a randomized, double-blind safety trial of high dose nicotinamide riboside in Parkinson’s disease. (external link)
• Brakedal, Brage; Dölle, Christian; Riemer, Frank et al. (2022). The NADPARK study: A randomized phase I trial of nicotinamide riboside supplementation in Parkinson's disease. (external link)
• Brakedal, Brage; Toker, Lilah; Haugarvoll, Kristoffer et al. (2022). A nationwide study of the incidence, prevalence and mortality of Parkinson’s disease in the Norwegian population. (external link)
• Brakedal, Brage; Tzoulis, Charalampos; Tysnes, Ole-Bjørn et al. (2021). NSAID use is not associated with Parkinson's disease incidence: A Norwegian Prescription Database study. (external link)
• Toker, Lilah; Tran, Gia T.; Sundaresan, Janani et al. (2021). Genome-wide histone acetylation analysis reveals altered transcriptional regulation in the Parkinson’s disease brain. (external link)
• Gaare, Johannes Jernqvist; Nido, Gonzalo Sanchez; Dölle, Christian et al. (2020). Meta-analysis of whole-exome sequencing data from two independent cohorts finds no evidence for rare variant enrichment in Parkinson disease associated loci. (external link)
• Nido, Gonzalo Sanchez; Dick, Fiona; Toker, Lilah et al. (2020). Common gene expression signatures in Parkinson’s disease are driven by changes in cell composition. (external link)
• Gaare, Johannes Jernqvist; Nido, Gonzalo Sanchez; Sztromwasser, Pawel Szymon et al. (2018). Rare genetic variation in mitochondrial pathways influences the risk for parkinson's disease. (external link)
• Nido, Gonzalo Sanchez; Dölle, Christian; Flønes, Irene Hana et al. (2018). Ultradeep mapping of neuronal mitochondrial deletions in Parkinson's disease. (external link)
• Pakdaman, Yasaman; Guixe, Monica Sanchez; Kleppe, Rune et al. (2017). In vitro characterization of six STUB1 variants in spinocerebellar ataxia 16 reveals altered structural properties for the encoded CHIP proteins. (external link)
• Haugarvoll, Kristoffer; Johansson, Stefan; Rodriguez, Carlos E. et al. (2017). GBA2 mutations cause a Marinesco-Sjogren-like syndrome: Genetic and biochemical studies. (external link)
• Brakedal, Brage; Flønes, Irene Hana; Reiter, Simone B. C. Frizell et al. (2017). Glitazone use associated with reduced risk of Parkinson's disease. (external link)
• Hikmat, Omar; Tzoulis, Charalampos; Chong, Wui K. et al. (2017). The clinical spectrum and natural history of early-onset diseases due to DNA polymerase gamma mutations. (external link)
• Flønes, Irene Hana; Fernandez-Vizarra, Erika; Lykouri, Maria et al. (2017). Neuronal complex I deficiency occurs throughout the Parkinson's disease brain, but is not associated with neurodegeneration or mitochondrial DNA damage. (external link)
• Hikmat, Omar; Tzoulis, Charalampos; Klingenberg, Claus et al. (2017). The presence of anaemia negatively influences survival in patients with POLG disease. (external link)
• Flønes, Irene Hana; Sztromwasser, Pawel Szymon; Haugarvoll, Kristoffer et al. (2016). Novel SLC19A3 promoter deletion and allelic silencing in biotin-thiamine-responsive basal ganglia encephalopathy. (external link)
• Dölle, Christian; Flønes, Irene Hana; Nido, Gonzalo Sanchez et al. (2016). Defective mitochondrial DNA homeostasis in the substantia nigra in Parkinson disease. (external link)
• Tzoulis, Charalampos; Schwarzlmüller, Thomas; Biermann, Martin et al. (2016). Mitochondrial DNA homeostasis is essential for nigrostriatal integrity. (external link)
• Sundal, Christina Heidemann; Baker, Matt C.; Karrenbauer, Virginija Danylaité et al. (2015). Hereditary diffuse leukoencephalopathy with spheroids with phenotype of primary progressive multiple sclerosis. (external link)
• Oftedal, Bergithe Eikeland; Hellesen, Alexander; Erichsen, Martina Moter et al. (2015). Dominant mutations in the autoimmune regulator AIRE are associated with common organ-specific autoimmune diseases. (external link)
• Flønes, Irene Hana; Haugarvoll, Kristoffer; Sundal, Christina Heidemann et al. (2015). En kvinne i 70-årene med langvarige gangvansker. (external link)
• Tzoulis, Charalompos; Zayats, Tetyana; Knappskog, Per et al. (2015). HTRA2 p.G399S in Parkinson disease, essential tremor, and tremulous cervical dystonia. (external link)
• Haugarvoll, Kristoffer; Tzoulis, Charalampos; Tran, Gia Tuong Thi et al. (2014). Myoclonus-dystonia and epilepsy in a family with a novel epsilon-sarcoglycan mutation. (external link)
• Skeie, Geir Olve; Müller, Bente; Haugarvoll, Kristoffer et al. (2013). Parkinson disease: Associated disorders in the Norwegian population based incident ParkWest study. (external link)
• Tzoulis, Charalampos; Tran, Gia Tuong Thi; Schwarzlmüller, Thomas et al. (2013). Severe nigrostriatal degeneration without clinical parkinsonism in patients with polymerase gamma mutations. (external link)
• Haugarvoll, Kristoffer; Johansson, Stefan; Tzoulis, Charalampos et al. (2013). MRI characterisation of adult onset alpha-methylacyl-coA racemase deficiency diagnosed by exome sequencing. (external link)
• Tveiten, Ole; Skeie, Geir Olve; Haugarvoll, Kristoffer et al. (2013). Treatment in early Parkinson's disease: the Norwegian ParkWest study. (external link)
• Mueller, Bernd; Assmus, J.; Larsen, J. P. et al. (2013). Autonomic symptoms and dopaminergic treatment in de novo Parkinson's disease. (external link)
• Balafkan, Novin; Tzoulis, Charalampos; Muller, Bernd et al. (2012). Number of CAG repeats in POLG1 and its association with Parkinson disease in the Norwegian population. (external link)
• Haugarvoll, Kristoffer; Bindoff, Laurence (2011). A novel compound heterozygous tyrosine hydroxylase mutation (p.R441P) with complex phenotype. (external link)
• Aasly, Jan; Vilarino-Guell, C; Dachsel, JC et al. (2010). Novel pathogenic LRRK2 p.Asn1437His substitution in familial Parkinson's disease. (external link)
• Skeie, Geir Olve; Mueller, Bernd; Haugarvoll, Kristoffer et al. (2010). Differential Effect of Environmental Risk Factors on Postural Instability Gait Difficulties and Tremor Dominant Parkinson's Disease. (external link)
• Vefring, Hege; Haugarvoll, Kristoffer; Tysnes, Ole-Bjørn et al. (2010). The role of APOE alleles in incident Parkinson's disease. The Norwegian ParkWest Study. (external link)
• Haugarvoll, Kristoffer; Toft, Mathias; Skipper, L et al. (2009). Fine-mapping and candidate gene investigation within the PARK 10 locus. (external link)
• Wider, C; Lincoln, SJ; Heckman, MG et al. (2009). Phactr2 and Parkinson's disease. (external link)
• Wider, C; Dachsel, JC; Soto, AI et al. (2009). FGF20 and Parkinson's Disease: No Evidence of Association or Pathogenicity via alpha-Synuclein Expression. (external link)
• Haugarvoll, Kristoffer; Rademakers, R; Kachergus, JM et al. (2008). Lrrk2 R1441C parkinsonism is clinically similar to sporadic Parkinson disease. (external link)
• Ross, OA; Heckman, MG; Soto, AI et al. (2008). Dopamine beta-hydroxylase-1021C > T association and Parkinson's disease. (external link)
• Haugarvoll, Kristoffer; Wszolek, ZK; Hutton, M (2007). The genetics of frontotemporal dementia. (external link)
• Toft, Mathias; Mata, IF; Ross, OA et al. (2007). Pathogenicity of the Lrrk2 R1514Q substitution in Parkinson's disease. (external link)
• Haugarvoll, Kristoffer; Toft, Mathias; Ross, OA et al. (2007). ELAVL4, PARK10, and the Celts. (external link)
• Ross, OA; Haugarvoll, Kristoffer; Stone, JT et al. (2007). Lack of evidence for association of Parkin promoter polymorphism (PRKN-258) with increased risk of Parkinson's disease. (external link)
• Toft, Mathias; Haugarvoll, Kristoffer; Ross, OA et al. (2007). LRRK2 and Parkinson's disease in Norway. (external link)
• Haugarvoll, Kristoffer; Toft, Mathias; Ross, OA et al. (2007). Variants in the LRRK1 gene and susceptibility to Parkinson's disease in Norway. (external link)

Academic literature review

• Boyle, Lydia; Giriteka, Lionel; Marty, Brice Sylvain Daniel et al. (2025). Activity and Behavioral Recognition Using Sensing Technology in Persons with Parkinson’s Disease or Dementia: An Umbrella Review of the Literature. (external link)
• Stige, Kjersti Eline; Kverneng, Simon Ulvenes; Sharma, Soumya et al. (2024). The STRAT-PARK cohort: A personalized initiative to stratify Parkinson's disease. (external link)
• Hikmat, Omar; Eichele, Tom; Tzoulis, Charalampos et al. (2017). Understanding the epilepsy in POLG related disease. (external link)

Doctoral dissertation

• Flønes, Irene Hana; Tzoulis, Charalampos; Dölle, Christian et al. (2019). Mitochondrial mechanisms in neurodegeneration. (external link)

Reader opinion piece

• Gaare, Johannes Jernqvist; Nido, Gonzalo Sanchez; Sztromwasser, Pawel Szymon et al. (2018). No evidence for rare TRAP1 mutations influencing the risk of idiopathic Parkinson's disease. (external link)
• Brakedal, Brage; Haugarvoll, Kristoffer; Tzoulis, Charalampos (2017). Simvastatin is associated with decreased risk of Parkinson disease. (external link)
• Haugarvoll, Kristoffer; Bindoff, Laurence; Tzoulis, Charalampos (2016). Nigrostriatal denervation sine parkinsonism. (external link)
• Vilarino-Guell, C; Ross, OA; Soto, AI et al. (2009). Reported Mutations in GIGYF2 are not a Common Cause of Parkinson's Disease. (external link)
• Farrer, MJ; Haugarvoll, K; Ross, OA et al. (2006). Genomewide association, Parkinson disease, and PARK10. (external link)

Errata

• Hikmat, Omar; Tzoulis, Charalampos; Klingenberg, Claus et al. (2017). Erratum to: The presence of anaemia negatively influences survival in patients with POLG disease (Journal of Inherited Metabolic Disease, (2017), 40, 6, (861-866), 10.1007/s10545-017-0084-9). (external link)

See a complete overview of publications in Cristin.

Pubmed: https://www.ncbi.nlm.nih.gov/pubmed/?term=haugarvoll+k