• 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 ...
    • Diagnostic laboratory testing for Charcot Marie Tooth disease (CMT): the spectrum of gene defects in Norwegian patients with CMT and its implications for future genetic test strategies. 

      Østern, Rune André Helland; Fagerheim, Toril; Hjellnes, Helene; Nygård, Bjørn; Mellgren, Svein Ivar; Nilssen, Øivind (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The importance of diagnosing and treating co-occurring psychiatric disorders among substance abusers in treatment has received much attention. The aim of this study was to investigate to which extent co-occurring psychiatric disorders are diagnosed in a clinical population of substance abusers, and which factors (including the use of MINI-Plus) that influence the diagnosing of co-occurring psychiatric ...
    • Epidemiology and natural history in 101 subjects with FKRP-related limb-girdle muscular dystrophy R9. The Norwegian LGMDR9 cohort study (2020) 

      Jensen, Synnøve; Müller, Kai Ivar; Mellgren, Svein Ivar; Bindoff, Laurence Albert; Rasmussen, Magnhild; Ørstavik, Kristin; Jonsrud, Christoffer; Tveten, Kristian; Nilssen, Øivind; Van Ghelue, Marijke; Arntzen, Kjell Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-25)
      We aimed to investigate the epidemiology and natural history of FKRP-related limb-girdle muscular dystrophy R9 (LGMDR9) in Norway. We identified 153 genetically confirmed subjects making the overall prevalence 2.84/100,000, the highest reported figure worldwide. Of the 153 subjects, 134 (88 %) were homozygous for FKRP c.826C>A giving a carrier frequency for this variant of 1/101 in Norway. Clinical ...
    • Insomnia and sleep-disordered breathing in FKRP-related limb-girdle muscular dystrophy R9. The Norwegian LGMDR9 cohort study (2020) 

      Jensen, Synnøve; Abeler, Karin Louise; Friborg, Oddgeir; Rösner, Assami; Olsborg, Caroline; Mellgren, Svein Ivar; Müller, Kai Ivar; Rosenberger, Andreas Dybesland; Vold, Monica Linea; Arntzen, Kjell Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-11)
      Limb-girdle muscular dystrophy R9 (LGMDR9) is a progressive and disabling genetic muscle disease. Sleep is relevant in the patient care as it impacts on health, functioning, and well-being. LGMDR9 may potentially afect sleep by physical or emotional symptoms, myalgia, or sleep-disordered breathing (SDB) through cardiorespiratory involvement. The objective was to investigate the occurrence of ...
    • Milde phenotype in an adult male With X-linked adrenoleukodystrophy 

      Horn, Morten Andreas; Müller, Karin Brigitte; Ferdinandusse, Sacha; Jørum, Ellen; Mellgren, Svein Ivar; Tallaksen, Chantal (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-12-21)
      Key Clinical Message:<br>X-linked adrenoleukodystrophy may present with a deceptively mild phenotype, even in adult males. Tight collaboration between clinicians, geneticists, biochemists, and other specialists is increasingly required for clarification of diagnosis in cases with atypical presentation.
    • Segregation analysis in families with Charcot-Marie-Tooth disease allows reclassification of putative disease causing mutations 

      Østern, Rune André Helland; Fagerheim, Toril; Hjellnes, Helene; Nygård, Bjørn; Mellgren, Svein Ivar; Nilssen, Øivind (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Small- and large-fiber neuropathy after 40 years of type 1 diabetes associations with glycemic control and advanced protein glycation: the Oslo Study 

      Sveen, Kari Anne; Karimé, Bassam; Jørum, Ellen; Mellgren, Svein Ivar; Fagerland, Morten; Monnier, Vincent; Dahl-Jørgensen, Knut; Hanssen, Kristian Folkvord (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-10-15)
      OBJECTIVE To study large- and small-nerve fiber function in type 1 diabetes of long duration and associations with HbA<sub>1c</sub> and the advanced glycation end products (AGEs) N-&#949-(carboxymethyl)lysine (CML) and methylglyoxal-derived hydroimidazolone.<p> <p>RESEARCH DESIGN AND METHODS In a long-term follow-up study, 27 persons with type 1 diabetes of 40 &#177 3 years duration underwent ...