Blar i forfatter "Rygg, Marite"

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    • Anti-type II collagen antibodies, anti-CCP, IgA RF and IgM RF are associated with joint damage, assessed eight years after onset of juvenile idiopathic arthritis (JIA) 

      Berntson, Lillemor; Nordal, Ellen Berit; Fasth, Anders; Aalto, Kristiina; Herlin, T; Nielsen, Susan; Rygg, Marite; Zak, M; Ronnelid, J (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Brief Report: The Genetic Profile of Rheumatoid Factor–Positive Polyarticular Juvenile Idiopathic Arthritis Resembles That of Adult Rheumatoid Arthritis 

      Hinks, Anne; Marion, Miranda C.; Cobb, Joanna; Comeau, Mary E.; Sudman, Marc; Ainsworth, Hannah C.; Bowes, John; Becker, Mara L.; Bohnsack, John F.; Haas, Johannes-Peter; Lovell, Daniel J.; Mellins, Elizabeth D.; Nelson, J. Lee; Nordal, Ellen Berit; Punaro, Marilynn; Reed, Ann M.; Rose, Carlos D.; Rosenberg, Alan M.; Rygg, Marite; Smith, Samantha L.; Stevens, Anne M.; Videm, Vibeke; Wallace, Carol A.; Wedderburn, Lucy R.; Yarwood, Annie; Yeung, Rae S.M.; Langefeld, Carl D.; Thompson, Susan D.; Thomson, Wendy; Prahalad, Sampath (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-02-09)
      <i><p>Objective</i>: Juvenile idiopathic arthritis (JIA) comprises 7 heterogeneous categories of chronic childhood arthritides. Approximately 5% of children with JIA have rheumatoid factor (RF)–positive arthritis, which phenotypically resembles adult rheumatoid arthritis (RA). Our objective was to compare and contrast the genetics of RF‐positive polyarticular JIA with those of RA and selected other ...

    • Changing patterns in treatment, remission status, and categories in a long-term Nordic cohort study of juvenile idiopathic arthritis 

      Glerup, Mia; Arnstad, Ellen Dalen; Rypdal, Veronika; Peltoniemi, Suvi; Aalto, Kristiina; Rygg, Marite; Nielsen, Susan; Fasth, Anders; Berntson, Lillemor; Nordal, Ellen Berit; Herlin, Troels (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-10)
      Objective - To explore sustainability of achieved remission off medication and defined International League of Associations for Rheumatology (ILAR) categories in juvenile idiopathic arthritis (JIA) and describe the trajectory of disease course over time by comparing treatment, disease activity, and ILAR categories from baseline, 8 years, and 18 years after disease onset.<p> <p>Methods - A total ...

    • Complement lectin pathway protein levels reflect disease activity in juvenile idiopathic arthritis: A longitudinal study of the Nordic JIA cohort 

      Glerup, Mia; Thiel, Steffen; Rypdal, Veronika Gjertsen; Arnstad, Ellen Dalen; Ekelund, Maria; Peltoniemi, Suvi; Aalto, Kristiina; Rygg, Marite; Nielsen, Susan; Fasth, Anders; Berntson, Lillemor; Nordal, Ellen Berit; Herlin, Troels (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-09)
      <i>Background</i> - To determine the serum levels of the lectin pathway proteins early in the disease course and 17 years after disease onset and to correlate the protein levels to markers of disease activity in participants from a population-based Nordic juvenile idiopathic arthritis (JIA) cohort. Additionally, to assess the predictive value of lectin pathway proteins with respect to remission ...

    • Dental caries in children and adolescents with juvenile idiopathic arthritis and controls: a multilevel analysis 

      Gil, Elisabeth G.; Åstrøm, Anne-Kristine N; Lie, Stein Atle; Rygg, Marite; Fischer, Johannes; Rosén, Annika; Bletsa, Athanasia; Luukko, Keijo; Shi, Xie-Qi; Halbig, Josefine; Frid, Paula; Cetrelli, Lena Elisabet; Tylleskär, Karin; Rosendahl, Karen; Skeie, Marit Slåttelid (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-25)
      Background - Optimal utilization of dental caries data is crucial in epidemiological research of individuals with juvenile idiopathic arthritis (JIA). The aims were to: explore whether caries is more prevalent among children and adolescents with JIA compared to controls; examine presence of caries according to JIA group, socio-behavioral and intraoral characteristics, and the extent to which ...

    • Dental plaque and gingival bleeding in adolescents with juvenile idiopathic arthritis and controls: a multilevel analysis 

      Gil, Elisabeth Grut; Åstrøm, Anne-Kristine N; Lie, Stein Atle; Rygg, Marite; Fischer, Johannes; Rosén, Annika; Bletsa, Athanasia; Luukko, Keijo Aukusti; Shi, Xie-Qi; Halbig, Josefine Mareile; Frid, Paula Hanna Therese; Cetrelli, Lena Elisabet; Tylleskär, Karin; Rosendahl, Karen; Skeie, Marit Slåttelid (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-30)
      Objective - To explore whether plaque and gingival bleeding are more frequently experienced by adolescents with juvenile idiopathic arthritis (JIA) compared to matched controls without JIA; explore whether surface- and site-specific periodontal outcomes vary between the two groups; and for participants with JIA, investigate associations between disease-specific features and periodontal outcomes.<p ...

    • Early self-reported pain in juvenile idiopathic arthritis (JIA) is related to long-term outcomes. Results from the Nordic JIA cohort study. 

      Arnstad, Ellen Dalen; Rypdal, Veronika Gjertsen; Peltoniemi, Suvi; Herlin, T; Berntson, Lillemor; Fasth, Anders; Nielsen, Susan; Glerup, Mia; Ekelund, Maria; Zak, Marek; Aalto, Kristiina; Nordal, Ellen Berit; Romundstad, Pål Richard; Rygg, Marite (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-07-28)
      <p><i>Objective</i>: To study self‐reported pain early in the disease course of juvenile idiopathic arthritis (JIA) as predictor of long‐term disease outcomes.</p> <p><i>Methods</i>: Consecutive cases of JIA with disease onset 1997‐2000 from defined geographical areas of Norway, Sweden, Finland and Denmark were prospectively enrolled in this population‐based cohort study. Self‐reported, disease‐related ...

    • Fatigue in young adults with juvenile idiopathic arthritis 18 years after disease onset: data from the prospective Nordic JIA cohort 

      Arnstad, Ellen Dalen; Glerup, Mia; Rypdal, Veronika Gjertsen; Peltoniemi, Suvi; Fasth, Anders; Nielsen, Susan; Zak, Marek; Aalto, Kristiina; Berntson, Lillemor; Nordal, Ellen Berit; Herlin, Troels; Romundstad, Pål Richard; Rygg, Marite (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-12)
      Background: To study fatigue in young adults with juvenile idiopathic arthritis (JIA) 18 years after disease onset, and to compare with controls. Methods: Consecutive children with onset of JIA between 1997 and 2000, from geographically defined areas of Norway, Sweden, Denmark and Finland were followed for 18 years in a close to population-based prospective cohort study. Clinical features, ...

    • Fine-mapping the MHC locus in juvenile idiopathic arthritis (JIA) reveals genetic heterogeneity corresponding to distinct adult inflammatory arthritic diseases 

      Hinks, A; Bowes, J; Cobb, J; Ainsworth, HC; Marion, MC; Comeau, ME; Sudman, M; Han, B; Becker, ML; Bohnsack, JF; de Bakker, PIW; Haas, JP; Hazen, M; Lovell, DJ; Nigrovic, PA; Nordal, Ellen Berit; Punnaro, M; Rosenberg, AM; Rygg, Marite; Smith, S.L.; Wise, CA; Videm, Vibeke; Wedderburn, LR; Yarwood, A; Yeung, RSM; Prahalad, S; Langefeld, CD; Raychaudhuri, S; Thompson, SD; Thomson, W (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-20)
      Objectives: Juvenile idiopathic arthritis ( JIA) is a heterogeneous group of diseases, comprising seven categories. Genetic data could potentially be used to help redefine JIA categories and improve the current classification system. The human leucocyte antigen (HLA) region is strongly associated with JIA. Fine-mapping of the region was performed to look for similarities and differences in ...

    • Identification of a regulatory pathway governing TRAF1 via an arthritis-associated non-coding variant 

      Wang, Qiang; Martínez-Bonet, Marta; Kim, Taehyeung; Sparks, Jeffrey A.; Ishigaki, Kazuyoshi; Chen, Xiaoting; Sudman, Marc; Aguiar, Vitor; Sim, Sangwan; Hernandez, Marcos Chiñas; Chiu, Darren J.; Wactor, Alexandra; Wauford, Brian; Marion, Miranda C.; Gutierrez-Arcelus, Maria; Bowes, John; Eyre, Stephen; Nordal, Ellen Berit; Prahalad, Sampath; Rygg, Marite; Videm, Vibeke; Raychaudhuri, Soumya; Weirauch, Matthew T.; Langefeld, Carl D.; Thompson, Susan D.; Nigrovic, Peter A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-16)
      TRAF1/C5 was among the first loci shown to confer risk for inflammatory arthritis in the absence of an associated coding variant, but its genetic mechanism remains undefined. Using Immunochip data from 3,939 patients with juvenile idiopathic arthritis (JIA) and 14,412 control individuals, we identified 132 plausible common non-coding variants, reduced serially by single-nucleotide polymorphism ...

    • Incidence and predictors of Uveitis in juvenile idiopathic arthritis in a Nordic long-term cohort study. 

      Nordal, Ellen Berit; Rypdal, Veronika Gjertsen; Christoffersen, Terje; Aalto, Kristiina; Berntson, Lillemor; Fasth, Anders; Herlin, Troels; Nielsen, Susan; Peltoniemi, Suvi; Straume, Bjørn; Zak, Marek S.; Rygg, Marite (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-08-18)
      Background: The incidence of uveitis associated with juvenile idiopathic arthritis (JIA) varies around the world. Our aim was to investigate the incidence and predictors of uveitis in a Nordic population-based cohort. <br>Methods: Consecutive JIA cases from defined geographical areas in Denmark, Finland, Sweden and Norway with disease onset between January 1997 to June 2000 were followed for ...

    • Increased incidence of inflammatory bowel disease on etanercept in juvenile idiopathic arthritis regardless of concomitant methotrexate use 

      van Straalen, Joeri W.; Krol, Roline; Giancane, Gabriella; Panaviene, Violeta; Ailioaie, Laura Marinela; Dolezalova, Pavla; Cattalini, Marco; Susic, Gordana; Sztajnbok, Flavio; Maritsi, Despoina; Constantin, Tamas; Sawhney, Sujata; Rygg, Marite; Oliveira, Sheila K.; Nordal, Ellen Berit; Saad-Magalhaes, C; Rubio-Perez, Nadina; Jelusic, Marija; de Roock, Sytze; Wulffraat, Nico; Ruperto, Nicolino; Swart, Joost Frans; International Trials Org, Paediatric Rheumatology (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-11)
      Objectives: To describe risk factors for inflammatory bowel disease (IBD) development in a cohort of children with juvenile idiopathic arthritis (JIA).<p> <p>Methods: JIA patients who developed IBD were identified from the international Pharmachild register. Characteristics were compared between IBD and non-IBD patients and predictors of IBD were determined using multivariable logistic regression ...

    • Inflammatory Biomarkers Can Differentiate Acute Lymphoblastic Leukemia with Arthropathy from Juvenile Idiopathic Arthritis Better Than Standard Blood Tests 

      Brix, Ninna; Glerup, Mia; Foell, Dirk; Kessel, Christoph; Wittkowski, Helmut; Berntson, Lillemor; Fasth, Anders; Nielsen, Susan; Nordal, Ellen Berit; Rygg, Marite; Hasle, Henrik; Herlin, Troels (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-04)
      Objective - To evaluate the predictive value of biomarkers of inflammation like phagocyte-related S100 proteins and a panel of inflammatory cytokines in order to differentiate the child with acute lymphoblastic leukemia (ALL) from juvenile idiopathic arthritis (JIA).<p> <p>Study design - In this cross-sectional study, we measured S100A9, S100A12, and 14 cytokines in serum from children with ALL ...

    • Long-term outcomes in juvenile idiopathic arthritis: 18 years of follow-up in the population-based Nordic Juvenile Idiopathic Arthritis (JIA) cohort. 

      Glerup, Mia; Rypdal, Veronika Gjertsen; Arnstad, Ellen Dalen; Ekelund, Maria; Peltoniemi, Suvi; Aalto, Kristiina; Rygg, Marite; Toftedal, Peter; Nielsen, Susan; Fasth, Anders; Berntson, Lillemor; Nordal, Ellen Berit; Herlin, Troels (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-02-14)
      <i>Objectives</i> - This study assessed the long‐term course, remission rate and disease burden in juvenile idiopathic arthritis (JIA) 18 years after disease onset in a population‐based setting from the early biologic era.<p><p> <i>Methods</i> - A total of 510 consecutive cases of JIA with disease onset between 1997 and 2000 from defined geographic regions in Denmark, Norway, Sweden and Finland ...

    • Longterm Outcomes of Temporomandibular Joints in Juvenile Idiopathic Arthritis: 17 Years of Followup of a Nordic Juvenile Idiopathic Arthritis Cohort. 

      Glerup, Mia; Stoustrup, Peter Bangsgaard; Matzen, Louise Hauge; Rypdal, Veronika Gjertsen; Nordal, Ellen Berit; Frid, Paula; Arnstad, Ellen Dalen; Rygg, Marite; Thorarensen, Olafur; Ekelund, Maria; Berntson, Lillemor; Fasth, Anders; Nilsson, H; Peltoniemi, Suvi; Aalto, Kristiina; Arte, Sirpa; Toftedal, Peter; Nielsen, Susan; Kreiborg, S.; Herlin, T; Pedersen, T. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-01)
      <i>Objective</i> - To determine the prevalence of orofacial symptoms, dysfunctions, and deformities of the temporomandibular joint (TMJ) in juvenile idiopathic arthritis (JIA) 17 years after disease onset.<p> <p><i>Methods</i> - Drawn from a prospective, population-based Nordic JIA cohort with disease onset from 1997 to 2000, 420 consecutive cases were eligible for orofacial evaluation of TMJ ...

    • M-ficolin: a valuable biomarker to identify leukaemia from juvenile idiopathic arthritis 

      Brix, Ninna; Glerup, Mia; Thiel, Steffen; Mistegaard, Clara Elbæk; Skals, Regitze Gyldenholm; Berntson, Lillemor; Fasth, Anders; Nielsen, Susan Mary; Nordal, Ellen Berit; Rygg, Marite; Hasle, Henrik; Albertsen, Birgitte Klug; Herlin, Troels (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-22)
      Objective: Distinction on clinical grounds between acute lymphoblastic leukaemia presenting with arthropathy (ALLarthropathy) and juvenile idiopathic arthritis (JIA) is difficult, as the clinical and paraclinical signs of leukaemia may be vague. The primary aim was to examine the use of lectin complement pathway proteins as markers to differentiate ALLarthropathy from JIA. The secondary aims were ...

    • MRI in the Assessment of TMJ-Arthritis in Children with JIA; Repeatability of a Newly Devised Scoring System 

      Angenete, Oskar W; Augdal, Thomas Angell; Rygg, Marite; Rosendahl, Karen (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-19)
      Rationale and Objectives: The temporomandibular joint (TMJ) is commonly involved in children with juvenile idiopathic arthritis. The diagnosis and evaluation of the disease progression is dependent on medical imaging. The precision of this imaging is under debate. SeveralR scoring systems have been proposed but transparent testing of the precision of the constituents of the scoring systems is ...

    • Normal magnetic resonance appearances of the temporomandibular joints in children and young adults aged 2–18 years 

      Angenete, Oskar W; Augdal, Thomas Angell; Jellestad, Stig; Rygg, Marite; Rosendahl, Karen (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-12)
      <p><i>Background</i>: Knowledge of normal appearances of the temporomandibular joint (TMJ) is paramount when assessing the joint for disease in juvenile idiopathic arthritis. Reliable features defining normal TMJs in children are limited.</p> <p><i>Objective</i>: To establish reliable normal standards for the TMJ at magnetic resonance imaging (MRI).</p> <p><i>Materials and methods</i>: We ...

    • The Norwegian version of the Juvenile Arthritis Multidimensional Assessment Report (JAMAR) 

      Flatø, Berit; Rygg, Marite; Nordal, Ellen Berit; Røisland, Mona; Ødegård, Hanne Beate; Hoftun, Gry Børmark; Songstad, Nils Thomas; Consolaro, Alessandro; Bovis, Francesca; Ruperto, Nicolino (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-07)
      The Juvenile Arthritis Multidimensional Assessment Report (JAMAR) is a new parent/patient-reported outcome measure that enables a thorough assessment of the disease status in children with juvenile idiopathic arthritis (JIA). We report the results of the cross-cultural adaptation and validation of the parent and patient versions of the JAMAR in the Norwegian language. The reading comprehension of ...

    • A novel serum calprotectin (MRP8/14) particle-enhanced immuno-turbidimetric assay (sCAL turbo) helps to differentiate systemic juvenile idiopathic arthritis from other diseases in routine clinical laboratory settings 

      Foell, Dirk; Saers, Melanie; Park, Carolin; Brix, Ninna; Glerup, Mia; Kessel, Christoph; Wittkowski, Helmut; Hinze, Claas; Berntson, Lillemor; Fasth, Anders; Myrup, Charlotte; Nordal, Ellen Berit; Rygg, Marite; Hasle, Henrik; Albertsen, Birgitte Klug; Herlin, Troels; Holzinger, Dirk; Niederberger, Christian; Schlüter, Bernhard (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-25)
      Background Differential diagnosis in children with signs of unprovoked inflammation can be challenging. In particular, differentiating systemic juvenile idiopathic arthritis (SJIA) from other diagnoses is difficult. We have recently validated the complex of myeloid-related proteins 8/14 (MRP8/14, also known as S100A8/A9 complex or serum calprotectin) as a helpful biomarker supporting the diagnosis ...