Blar i forfatter "Steffensen, Linn Hofsøy"

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    • Can vitamin D-3 supplementation prevent bone loss in persons with MS? A placebo-controlled trial 

      Steffensen, Linn Hofsøy; Jørgensen, Lone; Straume, Bjørn; Mellgren, Svein Ivar; Kampman, Margitta Theodora (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Multiple sclerosis (MS) is a possible cause of secondary osteoporosis. In this phase II trial we assessed whether a weekly dose of 20,000 IU vitamin D3 prevents bone loss in ambulatory persons with MS age 18–50 years. ClinicalTrials.gov ID NCT00785473. All patients managed at the University Hospital of North Norway who fulfilled the main inclusion criteria were invited to participate in this ...

    • Can vitamin D3 supplementation prevent bone loss in persons with MS? 

      Steffensen, Linn Hofsøy (Doctoral thesis; Doktorgradsavhandling, 2012-12-13)
      In persons with Multiple sclerosis (MS) low bone mineral density (BMD) is more prevalent when compared with healthy controls and MS may be a possible cause of secondary osteoporosis. BMD is primarily determined by genetic and hormonal factors, body mass index, physical activity and intake of calcium and vitamin D. Vitamin D level at 50 nmol/L or higher is classified as sufficient, however, optimal ...

    • High dose vitamin D supplementation does not affect biochemical bone markers in multiple sclerosis - a randomized controlled trial 

      Holmøy, Trygve; Lindstrøm, Jonas Christoffer; Eriksen, Erik Fink; Steffensen, Linn Hofsøy; Kampman, Margitta Theodora (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-04-04)
      Background: <br> People with multiple sclerosis have high risk of osteoporosis and fractures. A poor vitamin D status is a risk factor for MS, and vitamin D supplementation has been recommended both to prevent MS progression and to maintain bone health. <br> Methods: <br> We assessed the effect of 20,000 IU vitamin D3 weekly compared to placebo on biochemical markers of bone metabolism in 68 ...

    • Prediction of underlying atrial fibrillation in patients with a cryptogenic stroke: results from the NOR-FIB Study 

      Ratajczak-Tretel, Barbara; Lambert, Anna Tancin; Al-Ani, Riadh Ibrahim Mahmud; Arntzen, Kathrine Grønning; Bakkejord, Grete; Bekkeseth, Hanna Marie Otterholt; Bjerkeli, Vigdis; Eldøen, Guttorm; Gulsvik, Anne Kristine; Halvorsen, Bente; Høie, Gudrun; Ihle-Hansen, Hege Beathe; Ihle-Hansen, Håkon; Ingebrigtsen, Susanne; Kremer, C.; Krogseth, Siv Bohne; Kruuse, C.; Kurz, Martin; Nakstad, Ingvild; Novotny, Vojtech; Næss, Halvor; Qazi, Rehman Ul-Haq; Rezaj, M.K.; Rørholt, Dag Marius Nitschke; Steffensen, Linn Hofsøy; Sømark, Jesper Norsted; Tobro, Håkon; Truelsen, T.C.; Wassvik, L.; Ægidius, K.L.; Atar, Dan; Aamodt, Anne Hege (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-10)
      Background - Atrial fibrillation (AF) detection and treatment are key elements to reduce recurrence risk in cryptogenic stroke (CS) with underlying arrhythmia. The purpose of the present study was to assess the predictors of AF in CS and the utility of existing AF-predicting scores in The Nordic Atrial Fibrillation and Stroke (NOR-FIB) Study.<p> <p>Method - The NOR-FIB study was an international ...