• Does insomnia modify the association between C-reactive protein and migraine? The Tromsø Study 2015-2016. 

      Hagen, Knut; Hopstock, Laila Arnesdatter; Eggen, Anne Elise; Mathiesen, Ellisiv B.; Nilsen, Kristian Bernhard (Journal article; Peer reviewed, 2019)
      Background The relationship between high sensitivity C-reactive protein and migraine is unclear. The aim of this cross-sectional population-based study was to investigate the association between high sensitivity C-reactive ...
    • Does pain sensitivity change by migraine phase? A blinded longitudinal study 

      Hagen, Knut; Omland, Petter Moe; Stovner, Lars Jacob; Sand, Trond Halfdan; Uglem, Martin; Tronvik, Erling Andreas; Nilsen, Kristian Bernhard; Linde, Anders Mattias (Journal article; Peer reviewed, 2016)
      Objective: Studies suggest that pain thresholds may be altered before and during migraine headaches, but it is still debated if a central or peripheral dysfunction is responsible for the onset of pain in migraine. The ...
    • Is pituitary MRI screening necessary in cluster headache? 

      Grangeon, Lou; OConnor, Emer; Danno, Daisuke; Ngoc, Thanh Mai Pham; Cheema, Sanjay; Tronvik, Erling Andreas; Davagnanam, Indran; Matharu, Manjit (Peer reviewed; Journal article, 2021)
      Objective To determine the prevalence and clinical predictors of pituitary adenomas in cluster headache patients, in order to determine the necessity of performing dedicated pituitary magnetic resonance imaging in patients ...
    • Lifestyle factors and risk of migraine and tension-type headache. Follow-up data from the Nord-Trøndelag Health Surveys 1995-1997 and 2006-2008 

      Hagen, Knut; Åsberg, Anders Nikolai; Stovner, Lars Jacob; Linde, Mattias; Zwart, John-Anker; Winsvold, Bendik K S; HEUCH, INGRID (Journal article; Peer reviewed, 2018)
      Aims The aim of this population-based historical cohort study was to investigate the influence of lifestyle factors on the risk of developing migraine or tension-type headache (TTH). Methods Data from the Nord-Trøndelag ...
    • Migraine and endothelial function: The HUNT3 Study. 

      Larsen, Joakim Schjølberg; Skaug, Eli-Anne; Wisløff, Ulrik; Ellingsen, Øyvind; Stovner, Lars Jacob; Linde, Mattias; Hagen, Knut (Journal article; Peer reviewed, 2016)
      Background: Reduced endothelial function is associated with elevated risk of cardiovascular disease, but evidence on the association between migraine and endothelial function is conflicting. The aim of this population-based ...
    • Mitochondrial genome-wide association study of migraine – the HUNT Study 

      Børte, Sigrid; Zwart, John-Anker; Skogholt, Anne Heidi; Gabrielsen, Maiken Elvestad; Thomas, Laurent; Fritsche, Lars G; Surakke, Ida; Nielsen, Jonas B.; Zhou, Wei; Wolford, Brooke; Vigeland, Magnus Dehli; Hagen, Knut; Kristoffersen, Espen Saxhaug; Nyholt, Dale R; Chasman, Daniel I; Brumpton, Ben Michael; Willer, Christen; Winsvold, Bendik K S (Peer reviewed; Journal article, 2020)
      Background Variation in mitochondrial DNA (mtDNA) has been indicated in migraine pathogenesis, but genetic studies to date have focused on candidate variants, with sparse findings. We aimed to perform the first mitochondrial ...
    • Nutcracker syndrome mimicking new daily persistent headache: A case report 

      Stubberud, Anker; Cheema, Sanjay; Tronvik, Erling Andreas; Matharu, Manjit (Peer reviewed; Journal article, 2020)
      Introduction Compression of the duodenum and left renal vein between the aorta and superior mesenteric artery usually leads to symptoms of proximal bowel obstruction or hematuria and, more rarely, nonspecific mild ...
    • Paranasal sinus opacification in headache sufferers: A population-based imaging study (the HUNT study-MRI). 

      Hansen, Aleksander Grande; Stovner, Lars Jacob; Hagen, Knut; Helvik, Anne-Sofie; Thorstensen, Wenche Moe; Nordgård, Ståle; Bugten, Vegard; Eggesbø, Heidi Beate (Journal article; Peer reviewed, 2016)
      Background: The association between headache and paranasal sinus disease is still unclear. Because of symptom overlap, the two conditions are not easily studied on the basis of symptoms alone. The aim of the present study ...
    • Parental migraine in relation to migraine in offspring: Family linkage analyses from the HUNT Study 

      Børte, Sigrid; Zwart, John-Anker; Stensland, Synne; Hagen, Knut; Winsvold, Bendik K S (Journal article; Peer reviewed, 2019)
      Background Migraine is known to run in families. While some clinical studies have indicated that migraine is disproportionally transmitted through the maternal line, this has not been examined in a population-based ...
    • Remission of chronic headache: An 11-year follow-up study. Data from the Nord-Trøndelag Health Surveys 1995–1997 and 2006–2008 

      Hagen, Knut; Kristoffersen, Espen Saxhaug; Winsvold, Bendik K S; Stovner, Lars Jacob; Zwart, John-Anker (Journal article; Peer reviewed, 2018)
      Objectives To estimate remission rates of chronic headache and predictors of remission. Methods In this longitudinal population-based cohort study, we used validated headache questionnaire data from the second (1995–1997, ...
    • Volume and shape of subcortical grey matter structures related to headache: A cross-sectional population-based imaging study in the Nord-Trøndelag Health Study 

      Husøy, Andreas Kattem; Pintzka, Carl Wolfgang Schøyen; Eikenes, Live; Håberg, Asta; Hagen, Knut; Linde, Mattias; Stovner, Lars Jacob (Journal article; Peer reviewed, 2018)
      Background The relationship between subcortical nuclei and headache is unclear. Most previous studies were conducted in small clinical migraine samples. In the present population-based MRI study, we hypothesized that ...
    • White matter hyperintensities and headache: A population-based imaging study (HUNT MRI) 

      Honningsvåg, Lasse-Marius; Håberg, Asta; Hagen, Knut; Kvistad, Kjell Arne; Stovner, Lars Jacob; Linde, Mattias (Journal article; Peer reviewed, 2018)
      Objective To examine the relationship between white matter hyperintensities and headache. Methods White matter hyperintensities burden was assessed semi-quantitatively using Fazekas and Scheltens scales, and by manual ...