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Curtis JR, Weinblatt ME, Shadick NA, Brahe CH, Østergaard M, Hetland ML, Saevarsdottir S, Horton M, Mabey B, Flake DD, Ben-Shachar R, Sasso EH, Huizinga TW. Validation of the adjusted multi-biomarker disease activity score as a prognostic test for radiographic progression in rheumatoid arthritis: a combined analysis of multiple studies. Arthritis Res Ther 2021; 23:1. [PMID: 33397438 PMCID: PMC7784276 DOI: 10.1186/s13075-020-02389-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/09/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The multi-biomarker disease activity (MBDA) test measures 12 serum protein biomarkers to quantify disease activity in RA patients. A newer version of the MBDA score, adjusted for age, sex, and adiposity, has been validated in two cohorts (OPERA and BRASS) for predicting risk for radiographic progression. We now extend these findings with additional cohorts to further validate the adjusted MBDA score as a predictor of radiographic progression risk and compare its performance with that of other risk factors. METHODS Four cohorts were analyzed: the BRASS and Leiden registries and the OPERA and SWEFOT studies (total N = 953). Treatments included conventional DMARDs and anti-TNFs. Associations of radiographic progression (ΔTSS) per year with the adjusted MBDA score, seropositivity, and clinical measures were evaluated using linear and logistic regression. The adjusted MBDA score was (1) validated in Leiden and SWEFOT, (2) compared with other measures in all four cohorts, and (3) used to generate curves for predicting risk of radiographic progression. RESULTS Univariable and bivariable analyses validated the adjusted MBDA score and found it to be the strongest, independent predicator of radiographic progression (ΔTSS > 5) compared with seropositivity (rheumatoid factor and/or anti-CCP), baseline TSS, DAS28-CRP, CRP SJC, or CDAI. Neither DAS28-CRP, CDAI, SJC, nor CRP added significant information to the adjusted MBDA score as a predictor, and the frequency of radiographic progression agreed with the adjusted MBDA score when it was discordant with these measures. The rate of progression (ΔTSS > 5) increased from < 2% in the low (1-29) adjusted MBDA category to 16% in the high (45-100) category. A modeled risk curve indicated that risk increased continuously, exceeding 40% for the highest adjusted MBDA scores. CONCLUSION The adjusted MBDA score was validated as an RA disease activity measure that is prognostic for radiographic progression. The adjusted MBDA score was a stronger predictor of radiographic progression than conventional risk factors, including seropositivity, and its prognostic ability was not significantly improved by the addition of DAS28-CRP, CRP, SJC, or CDAI.
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Affiliation(s)
- Jeffrey R Curtis
- University of Alabama at Birmingham, 510 20th Street S, Birmingham, AL, USA
| | - Michael E Weinblatt
- Divison of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Boston, MA, USA
| | - Nancy A Shadick
- Divison of Rheumatology, Inflammation and Immunity, Brigham and Women's Hospital, Boston, MA, USA
| | - Cecilie H Brahe
- Copenhagen Center for Arthritis Research and DANBIO, Center for Rheumatology and Spine Diseases, Rigshospitalet, Valdemar Hansens vej 17, Glostrup, Denmark.,Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, Copenhagen, Denmark
| | - Mikkel Østergaard
- Copenhagen Center for Arthritis Research and DANBIO, Center for Rheumatology and Spine Diseases, Rigshospitalet, Valdemar Hansens vej 17, Glostrup, Denmark.,Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, Copenhagen, Denmark
| | - Merete Lund Hetland
- Copenhagen Center for Arthritis Research and DANBIO, Center for Rheumatology and Spine Diseases, Rigshospitalet, Valdemar Hansens vej 17, Glostrup, Denmark.,Department of Clinical Medicine, University of Copenhagen, Blegdamsvej 3B, Copenhagen, Denmark
| | - Saedis Saevarsdottir
- Division of Rheumatology and Clinical Epidemiology, Department of Medicine, Solna, Karolinska Institutet, SE-171 77, Stockholm, Sweden.,Faculty of Medicine, School of Health Sciences, University of Iceland, Reykjavik, Iceland
| | - Megan Horton
- Myriad Genetics, Inc., 320 Wakara Way, Salt Lake City, UT, USA
| | - Brent Mabey
- Myriad Genetics, Inc., 320 Wakara Way, Salt Lake City, UT, USA
| | - Darl D Flake
- Myriad Genetics, Inc., 320 Wakara Way, Salt Lake City, UT, USA
| | | | - Eric H Sasso
- Crescendo Bioscience, Inc., 180 Kimball Way, South San Francisco, CA, USA.
| | - T W Huizinga
- Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, Netherlands
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Mo YQ, Yang ZH, Wang JW, Li QH, Du XY, Huizinga TW, Matthijssen XME, Shi GZ, Shen J, Dai L. The value of MRI examination on bilateral hands including proximal interphalangeal joints for disease assessment in patients with early rheumatoid arthritis: a cross-sectional cohort study. Arthritis Res Ther 2019; 21:279. [PMID: 31829263 PMCID: PMC6907274 DOI: 10.1186/s13075-019-2061-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 11/12/2019] [Indexed: 02/05/2023] Open
Abstract
Background Bilateral hands including proximal interphalangeal joints (PIPJs) are recommended on physical, X-ray radiographic, or ultrasonographic examination by clinical guidelines of rheumatoid arthritis (RA), but MRI still tends to examine unilateral wrists and/or MCPJs. We aimed to demonstrate the advantages of MRI examination on bilateral hands including PIPJs for disease assessment in early RA patients. Methods Active early RA patients received 3.0T whole-body MRI examination with contrast-enhanced imaging on bilateral wrists, MCPJs, and PIPJs. MRI features were scored referring to the updated RAMRIS. Clinical assessments were conducted on the day of MRI examination. Results The mean time of MRI examination was 24 ± 3 min. MRI bone erosion in MCPJs would be missed-diagnosed in 23% of patients if non-dominant MCPJs were scanned unilaterally, while osteitis in MCPJs would be missed-diagnosed in 16% of patients if dominant MCPJs were scanned unilaterally. MRI synovitis severity was also asymmetric: 21% of patients showing severe synovitis unilaterally in non-dominant MCPJs/PIPJs and other 20% showing severe synovitis unilaterally in dominant MCPJs/PIPJs. Among these early RA patients, MRI tenosynovitis occurred the most frequently in wrist extensor compartment I, while MRI examination on bilateral hands demonstrated no overuse influence present. However, overuse should be considered in dominant PIPJ2, PIPJ4, and IPJ of thumb of which MRI tenosynovitis prevalence was respectively 18%, 17%, or 16% higher than the non-dominant counterparts. Early MRI abnormality of nervus medianus secondary to severe tenosynovitis occurred either in dominant or non-dominant wrists; MRI of unilateral hands would take a risk of missed-diagnosis. Common MRI findings in PIPJs were synovitis and tenosynovitis, respectively in 87% and 69% of patients. MRI tenosynovitis prevalence in IPJ of thumb or PIPJ5 was much higher than the continued wrist flexor compartments. MRI synovitis or tenosynovitis in PIPJs independently increased more than twice probability of joint tenderness (OR = 2.09 or 2.83, both p < 0.001). Conclusions In consideration of asymmetric MRI features in early RA, potential overuse influence for certain tenosynovitis in dominant hands, and high prevalence of MRI findings in PIPJs, MRI examination on bilateral hands including PIPJs is deserved for disease assessment in early RA patients.
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Affiliation(s)
- Ying-Qian Mo
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Ze-Hong Yang
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Jun-Wei Wang
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Qian-Hua Li
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Xin-Yun Du
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - T W Huizinga
- Department of Rheumatology, Leiden University Medical Center, Leiden, Netherlands
| | - X M E Matthijssen
- Department of Rheumatology, Leiden University Medical Center, Leiden, Netherlands
| | - Guang-Zi Shi
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Jun Shen
- Department of Radiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Lie Dai
- Department of Rheumatology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China.
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Curtis JR, Brahe CH, Østergaard M, Lund Hetland M, Hambardzumyan K, Saevarsdottir S, Wang X, Flake Ii DD, Sasso EH, Huizinga TW. Predicting risk for radiographic damage in rheumatoid arthritis: comparative analysis of the multi-biomarker disease activity score and conventional measures of disease activity in multiple studies. Curr Med Res Opin 2019; 35:1483-1493. [PMID: 30777458 DOI: 10.1080/03007995.2019.1585064] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Objective: To compare the multi-biomarker disease activity (MBDA) score with the DAS28-CRP and CRP for predicting risk of radiographic progression in patients with rheumatoid arthritis.Methods: Published studies of the MBDA score and radiographic progression with ≥100 patients per cohort were evaluated. Rates of radiographic progression over 1 year were determined across the low/moderate/high categories for MBDA score (low/moderate/high: <30, 30-44, >44), DAS28-CRP (low/moderate/high: ≤2.67, >2.67-4.09, >4.09) and CRP (low/moderate/high: ≤10, >10-30, >30 mg/L), with positive and negative predictive value (PPV, NPV) and relative risk (RR) determined for high vs. not-high (i.e. low and moderate combined) categories. Patient-level data from studies having all three measures was pooled to: (1) determine a combined RR for radiographic progression in the high vs. not-high categories for each measure; and (2) compare the predictive ability of MBDA score vs. DAS28-CRP by comparing the rates of radiographic progression observed in subgroups created by cross-classifying the high and not-high categories of each measure.Results: Five cohorts were identified for inclusion (total N=929). In each, radiographic progression was more frequent with increasing MBDA scores. Among the three cohorts with requisite data, PPVs were generally similar using categories of MBDA score, DAS28-CRP or CRP but NPVs were greater for MBDA score (93-97%) than DAS28-CRP or CRP (77-87%). RRs for radiographic progression were greater when based on categories of MBDA score than DAS28-CRP or CRP and the combined RR was greater for MBDA score (4.6, p < .0001) than DAS28-CRP (1.7, p = .02) or CRP (1.7, p = .002). For patients cross-classified by MBDA score and DAS28-CRP, high vs. not-high MBDA score significantly predicted radiographic progression independently of DAS28-CRP.Conclusions: High and not-high MBDA scores were associated with increased and low risk, respectively, for radiographic progression over one year. MBDA score was a better predictor of radiographic progression than DAS28-CRP or CRP.
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Affiliation(s)
| | - Cecilie H Brahe
- Copenhagen Center for Arthritis Research and DANBIO, Center for Rheumatology and Spine Diseases, Glostrup, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Østergaard
- Copenhagen Center for Arthritis Research and DANBIO, Center for Rheumatology and Spine Diseases, Glostrup, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Merete Lund Hetland
- Copenhagen Center for Arthritis Research and DANBIO, Center for Rheumatology and Spine Diseases, Glostrup, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Karen Hambardzumyan
- Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
| | - Saedis Saevarsdottir
- Rheumatology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Xingbin Wang
- Crescendo Bioscience Inc., South San Francisco, CA, USA
| | | | - Eric H Sasso
- Crescendo Bioscience Inc., South San Francisco, CA, USA
| | - T W Huizinga
- Leiden University Medical Center, Leiden, Netherlands
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Messemaker TC, Mikkers HMM, Huizinga TW, Toes REM, van der Helm- van Mil AHM, Kurreeman F. Inflammatory genes TNFα and IL6 display no signs of increased H3K4me3 in circulating monocytes from untreated rheumatoid arthritis patients. Genes Immun 2017; 18:191-196. [DOI: 10.1038/gene.2017.20] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 06/30/2017] [Accepted: 07/06/2017] [Indexed: 12/11/2022]
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Dekkers JS, Schoones JW, Huizinga TW, Toes RE, van der Helm-van Mil AH. Possibilities for preventive treatment in rheumatoid arthritis? Lessons from experimental animal models of arthritis: a systematic literature review and meta-analysis. Ann Rheum Dis 2016; 76:458-467. [PMID: 27481831 DOI: 10.1136/annrheumdis-2016-209830] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 06/20/2016] [Accepted: 07/09/2016] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Current research in rheumatoid arthritis focuses on preclinical disease phases as it is hypothesised that early preclinical treatment might prevent progression to full-blown disease. Since performance of studies in prearthritis phases in humans is challenging, animal models offer an opportunity to evaluate preventive treatments. We performed a systematic literature review and summarised treatment effects during different stages of arthritis development in animal models. METHODS Eight medical literature databases were systematically searched. Studies were selected if they reported effects of synthetic or biological disease-modifying antirheumatic drugs in animal models of arthritis (collagen-induced arthritis and adjuvant-induced arthritis) on arthritis severity, as measured with arthritis severity scores, paw swelling or paw volume. Quality was assessed using an 11-item checklist. Study characteristics were extracted and effect sizes obtained in high-quality studies were summarised in meta-analyses. Studies were categorised into three groups: prophylactic (prior to generation of autoantibody response), prearthritis (after induction of autoantibody response) and therapeutic intervention (after arthritis development). RESULTS Out of 1415 screened articles, 22 studies (including n=712 animals) were eligible of good quality and included in meta-analyses. Prophylactic (16 experiments, n=312 animals) and prearthritis treatment (9 experiments, n=156 animals) both were associated with a reduction of arthritis severity (p<0.001 and p=0.005, respectively). Stratified analyses for different antirheumatic drugs initiated in the prearthritis phase suggested higher efficacy of methotrexate than of anti-tumour necrosis factor. CONCLUSIONS Data of experimental studies in animal models of arthritis suggest that prophylactic and prearthritis treatment strategies are effective and hint at differences in efficacy between antirheumatic drugs.
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Affiliation(s)
- J S Dekkers
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - J W Schoones
- Walaeus Library, Leiden University Medical Center, Leiden, The Netherlands
| | - T W Huizinga
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - R E Toes
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
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Messemaker TC, Mikkers HMM, Huizinga TW, Toes REM, van der Helm- van Mil AHM, Kurreeman F. A8.09 Trained immunity in monocytes from rheumatoid arthritis patients and healthy individuals. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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van Erp SJ, Brakenhoff LK, van Gaalen FA, van den Berg R, Fidder HH, Verspaget HW, Huizinga TW, Veenendaal RA, Wolterbeek R, van der Heijde D, van der Meulen-de Jong AE, Hommes DW. Classifying Back Pain and Peripheral Joint Complaints in Inflammatory Bowel Disease Patients: A Prospective Longitudinal Follow-up Study. J Crohns Colitis 2016; 10:166-75. [PMID: 26512134 DOI: 10.1093/ecco-jcc/jjv195] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 10/13/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Peripheral joint complaints [pJTC] and chronic back pain [CBP] are the most common extra-intestinal manifestations in patients with inflammatory bowel disease [IBD]. This prospective study evaluates variables associated with joint/back pain, including IBD disease activity. METHODS IBD patients with back pain ≥ 3 months and/or peripheral joint pain/swelling [n = 155], and IBD patients without joint complaints [n = 100; controls], were followed for a period of 1 year. Patients were classified as having SpondyloArthritis [SpA] according to several sets of criteria. Statistical analysis included logistic regression models and linear mixed model analysis. RESULTS Of the 155 patients with joint/back pain, 13 had chronic back pain, 80 peripheral joint complaints, and 62 axial and peripheral joint complaints. Smoking, female gender, and IBD disease activity were independently associated with IBD joint/back pain. The Assessment in Spondyloarthritis International Society criteria for axial and peripheral SpA were fulfilled in 12.3% of patients, with 9.7% [n = 15] receiving a rheumatological diagnosis of arthritis. During the 12-month follow-up, the majority of the patients reporting joint/back pain remained stable. CONCLUSIONS In our cohort, the majority of IBD patients reported joint/back pain and SpA was relatively common. To facilitate effective care, gastroenterologists should be aware of the various features of SpA to classify joint complaints and, by making use of an efficient referral algorithm, to refer CBP patients to the rheumatologist.
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Affiliation(s)
- S J van Erp
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - L K Brakenhoff
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - F A van Gaalen
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - R van den Berg
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - H H Fidder
- Department of Gastroenterology and Hepatology , University Medical Center Utrecht, Utrecht, The Netherlands
| | - H W Verspaget
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - T W Huizinga
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - R A Veenendaal
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - R Wolterbeek
- Department of Medical Statistics, Leiden University Medical Center, Leiden, The Netherlands
| | - D van der Heijde
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - A E van der Meulen-de Jong
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - D W Hommes
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands Center for Inflammatory Bowel Diseases, University of California Los Angeles, Los Angeles, CA, USA
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Dekkers JS, Verheul MK, Stoop JN, van Veelen PA, Janssen GMC, Huizinga TW, Trouw LA, Toes RE. A2.05 Carbamylated autoantigens facilitate the break of tolerance: A novel mechanism in the pathogenesis of autoimmune arthritis. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.40] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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de Lange-Brokaar BJE, Ioan-Facsinay A, Yusuf E, Visser AW, Kroon HM, van Osch GJVM, Zuurmond AM, Stojanovic-Susulic V, Bloem JL, Nelissen RGHH, Huizinga TW, Kloppenburg M. Association of pain in knee osteoarthritis with distinct patterns of synovitis. Arthritis Rheumatol 2015; 67:733-40. [PMID: 25418977 DOI: 10.1002/art.38965] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 11/13/2014] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To determine possible patterns of synovitis on contrast-enhanced magnetic resonance imaging (CE-MRI) and its relation to pain and severity in patients with radiographic knee osteoarthritis (OA). METHODS In total, 86 patients (mean age 62 years, 66% women, median body mass index 29 kg/m(2) ) with symptomatic knee OA (Kellgren/Lawrence radiographic score 3) were included. T1-weighted, gadolinium-chelate-enhanced MRI with fat suppression was used to semiquantitatively score the extent of synovitis at 11 knee sites (total score range 0-22). Self-reported pain was assessed with 3 standardized questionnaires. Principal components analysis (PCA) was used to investigate patterns (the location and severity) of synovitis. Subsequently, these patterns were assessed for associations with pain measures and radiographic severity in adjusted logistic regression models. RESULTS Synovitis was observed in 86 patients and was found to be generally mild on CE-MRI (median total synovitis score 7, range 0-16). The median pain scores were 53 (range 0-96) on the visual analog scale for pain, 51.4 (range 2.8-97.2) on the Knee Injury and Osteoarthritis Outcome Score (KOOS) for pain, 35 (range 0-75) on the Intermittent and Constant Osteoarthritis Pain (ICOAP) score for constant pain, and 40.6 (range 0-87.5) on the ICOAP score for intermittent pain. PCA resulted in extraction of 3 components, explaining 53.4% of the variance. Component 1 was characterized by synovitis at 7 sites (mainly medial parapatellar involvement) and was associated with scores on the KOOS pain subscale and the ICOAP constant pain subscale. Component 2 was characterized by synovitis at 4 sites (mainly the site adjacent to the anterior cruciate ligament), but was not associated with pain measures or with radiographic severity. Component 3, characterized by synovitis at 3 sites (mainly at the loose body site), was associated with radiographic severity. CONCLUSION Different patterns of synovitis in knee OA were observed. The pattern that included several patellar sites was associated with pain, whereas other patterns showed no association, suggesting that pain perception in patients with knee OA is a localized response.
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Jónasdóttir HS, Brouwers H, Kwekkeboom JC, Huizinga TW, Kloppenburg M, Toes RE, Giera M, Ioan-Facsinay A. A6.22 Specialised pro-resolving lipid mediators in chronic inflammation: a comparison between rheumatoid arthritis and osteoarthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-207259.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Genovese MC, Fleischmann RM, Fiore S, Radin A, Fan C, Huizinga TW. SAT0117 Sarilumab, a Subcutaneously-Administered, Fully-Human Monoclonal Antibody Inhibitor of The IL-6 Receptor: Relationship Between Eular Responses and Change from Baseline of Selected Clinical Parameters. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-eular.1843] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Scherer HU, Rombouts Y, Ewing E, van de Stadt LA, Selman MH, Deelder AM, Huizinga TW, Wuhrer M, van Schaardenburg D, Toes RE. OP0189 Anti-Citrullinated Protein Antibody Specific FC Glycosylation Patterns in Patients with Arthralgia. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Heimans L, Wevers-de Boer KV, Koudijs KK, Ronday HK, van Oosterhout M, Peeters AJ, Huizinga TW, Allaart CF. FRI0155 Patient reported outcomes in early arthritis patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Heimans L, Wevers-de Boer KV, Visser K, Goekoop-Ruiterman YP, Molenaar TH, Harbers JB, Bijkerk C, Speyer I, de Buck PD, de Sonnaville PB, Grillet BA, Huizinga TW, Allaart CF. FRI0094 Outcomes of two years of remission steered treatment in early arthritis patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Liu R, Huizinga TW, Kloppenburg M. SAT0342 Mortality in Osteoarthritis : A Systematic Review. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Visser W, den Heijer M, Spoelman W, Rosendaal FR, Huizinga TW, Kloppenburg M. SAT0350 Glucose and Insulin Concentrations in Association with Hand Osteoarthritis: The Neo Study. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ferraccioli G, Lapadula G, Dougados M, Veale DJ, Huizinga TW, Allaart CF, Landewé RB, Da Silva JAP, Martin Mola E, Moots RJ, Kay J, Salomon-Escoto KI, van der Heijde D. FRI0096 Haq baseline values in an international registry of ra patients during the era of biologic terapies: the 2013 meteor database. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Van Den Broek M, Allaart CF, Brines M, Cerami A, Huizinga TW. SAT0116 Safety and Efficacy of Ara290, a Non-Hematopoietic Erythropoietin Derived Peptide, in a 4 Weeks Phase II Open Label Trial in Patients with Active Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Mehta P, Holder S, Fisher B, Vincent T, Nadesalingam K, Maciver H, Shingler W, Bakshi J, Hassan S, D'Cruz D, Chan A, Litwic AE, McCrae F, Seth R, McCrae F, Nandagudi A, Jury E, Isenberg D, Karjigi U, Paul A, Rees F, O'Dowd E, Kinnear W, Johnson S, Lanyon P, Bakshi J, Stevens R, Narayan N, Marguerie C, Robinson H, Ffolkes L, Worsnop F, Ostlere L, Kiely P, Dharmapalaiah C, Hassan N, Nandagudi A, Bharadwaj A, Skibinska M, Gendi N, Davies EJ, Akil M, Kilding R, Ramachandran Nair J, Walsh M, Farrar W, Thompson RN, Borukhson L, McFadyen C, Singh D, Rajagopal V, Chan AML, Wearn Koh L, Christie JD, Croot L, Gayed M, Disney B, Singhal S, Grindulis K, Reynolds TD, Conway K, Williams D, Quin J, Dean G, Churchill D, Walker-Bone KE, Goff I, Reynolds G, Grove M, Patel P, Lazarus MN, Roncaroli F, Gabriel C, Kinderlerer AR, Nikiphorou E, Hall FC, Bruce E, Gray L, Krutikov M, Wig S, Bruce I, D'Agostino MA, Wakefield R, Berner Hammer H, Vittecoq O, Galeazzi M, Balint P, Filippucci E, Moller I, Iagnocco A, Naredo E, Ostergaard M, Gaillez C, Kerselaers W, Van Holder K, Le Bars M, Stone MA, Williams F, Wolber L, Karppinen J, Maatta J, Thompson B, Atchia I, Lorenzi A, Raftery G, Platt P, Platt PN, Pratt A, Turmezei TD, Treece GM, Gee AH, Poole KE, Chandratre PN, Roddy E, Clarson L, Richardson J, Hider S, Mallen C, Lieberman A, Prouse PJ, Mahendran P, Samarawickrama A, Churchill D, Walker-Bone KE, Ottery FD, Yood R, Wolfson M, Ang A, Riches P, Thomson J, Nuki G, Humphreys J, Verstappen SM, Chipping J, Hyrich K, Marshall T, Symmons DP, Roy M, Kirwan JR, Marshall RW, Matcham F, Scott IC, Rayner L, Hotopf M, Kingsley GH, Scott DL, Steer S, Ma MH, Dahanayake C, Scott IC, Kingsley G, Cope A, Scott DL, Dahanayake C, Ma MH, Scott IC, Kingsley GH, Cope A, Scott DL, Wernham A, Ward L, Carruthers D, Deeming A, Buckley C, Raza K, De Pablo P, Nikiphorou E, Carpenter L, Jayakumar K, Solymossy C, Dixey J, Young A, Singh A, Penn H, Ellerby N, Mattey DL, Packham J, Dawes P, Hider SL, Ng N, Humby F, Bombardieri M, Kelly S, Di Cicco M, Dadoun S, Hands R, Rocher V, Kidd B, Pyne D, Pitzalis C, Poore S, Hutchinson D, Low A, Lunt M, Mercer L, Galloway J, Davies R, Watson K, Dixon W, Symmons D, Hyrich K, Mercer L, Lunt M, Low A, Galloway J, Watson KD, Dixon WG, Symmons D, Hyrich KL, Low A, Lunt M, Mercer L, Bruce E, Dixon W, Hyrich K, Symmons D, Malik SP, Kelly C, Hamilton J, Heycock C, Saravanan V, Rynne M, Harris HE, Tweedie F, Skaparis Y, White M, Scott N, Samson K, Mercieca C, Clarke S, Warner AJ, Humphreys J, Lunt M, Marshall T, Symmons D, Verstappen S, Chan E, Kelly C, Woodhead FA, Nisar M, Arthanari S, Dawson J, Sathi N, Ahmad Y, Koduri G, Young A, Kelly C, Chan E, Ahmad Y, Woodhead FA, Nisar M, Arthanari S, Dawson J, Sathi N, Koduri G, Young A, Cumming J, Stannett P, Hull R, Metsios G, Stavropoulos Kalinoglou A, Veldhuijzen van Zanten JJ, Nightingale P, Koutedakis Y, Kitas GD, Nikiphorou E, Dixey J, Williams P, Kiely P, Walsh D, Carpenter L, Young A, Perry E, Kelly C, de-Soyza A, Moullaali T, Eggleton P, Hutchinson D, Veldhuijzen van Zanten JJ, Metsios G, Stavropoulos-Kalinoglou A, Sandoo A, Kitas GD, de Pablo P, Maggs F, Carruthers D, Faizal A, Pugh M, Jobanputra P, Kehoe O, Cartwright A, Askari A, El Haj A, Middleton J, Aynsley S, Hardy J, Veale D, Fearon U, Wilson G, Muthana M, Fossati G, Healy L, Nesbitt A, Becerra E, Leandro MJ, De La Torre I, Cambridge G, Nelson PN, Roden D, Shaw M, Davari Ejtehadi H, Nevill A, Freimanis G, Hooley P, Bowman S, Alavi A, Axford J, Veitch AM, Tugnet N, Rylance PB, Hawtree S, Muthana M, Aynsley S, Mark Wilkinson J, Wilson AG, Woon Kam N, Filter A, Buckley C, Pitzalis C, Bombardieri M, Croft AP, Naylor A, Zimmermann B, Hardie D, Desanti G, Jaurez M, Muller-Ladner U, Filer A, Neumann E, Buckley C, Movahedi M, Lunt M, Ray DW, Dixon WG, Burmester GR, Matucci-Cerinic M, Navarro-Blasco F, Kary S, Unnebrink K, Kupper H, Mukherjee S, Cornell P, Richards S, Rahmeh F, Thompson PW, Westlake SL, Javaid MK, Batra R, Chana J, Round G, Judge A, Taylor P, Patel S, Cooper C, Ravindran V, Bingham CO, Weinblatt ME, Mendelsohn A, Kim L, Mack M, Lu J, Baker D, Westhovens R, Hewitt J, Han C, Keystone EC, Fleischmann R, Smolen J, Emery P, Genovese M, Doyle M, Hsia EC, Hart JC, Lazarus MN, Kinderlerer AR, Harland D, Gibbons C, Pang H, Huertas C, Diamantopoulos A, Dejonckheere F, Clowse M, Wolf D, Stach C, Kosutic G, Williams S, Terpstra I, Mahadevan U, Smolen J, Emery P, Ferraccioli G, Samborski W, Berenbaum F, Davies O, Koetse W, Bennett B, Burkhardt H, Weinblatt ME, Fleischmann R, Davies O, Luijtens K, van der Heijde D, Mariette X, van Vollenhoven RF, Bykerk V, de Longueville M, Arendt C, Luijtens K, Cush J, Khan A, Maclaren Z, Dubash S, Chalam VC, Sheeran T, Price T, Baskar S, Mulherin D, Molloy C, Keay F, Heritage C, Douglas B, Fleischmann R, Weinblatt ME, Schiff MH, Khanna D, Furst DE, Maldonado MA, Li W, Sasso EH, Emerling D, Cavet G, Ford K, Mackenzie-Green B, Collins D, Price E, Williamson L, Golla J, Vagadia V, Morrison E, Tierney A, Wilson H, Hunter J, Ma MH, Scott DL, Reddy V, Moore S, Ehrenstein M, Benson C, Wray M, Cairns A, Wright G, Pendleton A, McHenry M, Taggart A, Bell A, Bosworth A, Cox M, Johnston G, Shah P, O'Brien A, Jones P, Sargeant I, Bukhari M, Nusslein H, Alten R, Galeazzi M, Lorenz HM, Boumpas D, Nurmohamed MT, Bensen W, Burmester GR, Peter HH, Rainer F, Pavelka K, Chartier M, Poncet C, Rauch C, Le Bars M, Lempp H, Hofmann D, Adu A, Congreve C, Dobson J, Rose D, Simpson C, Wykes T, Cope A, Scott DL, Ibrahim F, Schiff M, Alten R, Weinblatt ME, Nash P, Fleischmann R, Durez P, Kaine J, Delaet I, Kelly S, Maldonado M, Patel S, Genovese M, Jones G, Sebba A, Lepley D, Devenport J, Bernasconi C, Smart D, Mpofu C, Gomez-Reino JJ, Verma I, Kaur J, Syngle A, Krishan P, Vohra K, Kaur L, Garg N, Chhabara M, Gibson K, Woodburn J, Telfer S, Buckley F, Finckh A, Huizinga TW, Dejonckheere F, Jansen JP, Genovese M, Sebba A, Rubbert-Roth A, Scali JJ, Alten R, Kremer JM, Pitts L, Vernon E, van Vollenhoven RF, Sharif MI, Das S, Emery P, Maciver H, Shingler W, Helliwell P, Sokoll K, Vital EM. Case Reports * 1. A Late Presentation of Loeys-Dietz Syndrome: Beware of TGF Receptor Mutations in Benign Joint Hypermobility. Rheumatology (Oxford) 2013. [DOI: 10.1093/rheumatology/ket197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Knevel R, de Rooy DP, Gregersen PK, Lindqvist E, Wilson AG, Gröndal G, Zhernakova A, van Nies JA, Toes RE, Tsonaka R, Houwing-Duistermaat JJ, Steinsson K, Huizinga TW, Saxne T, van der Helm-van Mil AH. Studying associations between variants in TRAF1-C5 and TNFAIP3-OLIG3 and the progression of joint destruction in rheumatoid arthritis in multiple cohorts. Ann Rheum Dis 2012; 71:1753-5. [PMID: 22586175 DOI: 10.1136/annrheumdis-2012-201289] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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de Lange-Brokaar BJE, Ioan-Facsinay A, Visser AW, Andersen SN, van Toorn L, van Osch GJVM, Zuurmond AM, Stojanovic-Susulic V, Reijnierse M, Nelissen RGHH, Huizinga TW, Kloppenburg M. Degree of synovitis on MRI is correlated with histological and macroscopic features of synovial tissue inflammation in knee osteoarthritis. Ann Rheum Dis 2012. [DOI: 10.1136/annrheumdis-2011-201239.12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Jansen DTSL, Daha N, Kurreeman FAS, Böhringer S, Stoeken-Rijsbergen G, Houwing-Duistermaat JJ, Huizinga TW, Toes REM, Trouw LA. Genetic variants of C1q are a risk for rheumatoid arthritis. Ann Rheum Dis 2012. [DOI: 10.1136/annrheumdis-2011-201236.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Trouw LA, Böhringer S, Daha NA, Stahl EA, Raychaudhuri S, Kurreeman FA, Stoeken-Rijsbergen G, Houwing-Duistermaat JJ, Huizinga TW, Toes RE. The major risk alleles of age-related macular degeneration (AMD) in CFH do not play a major role in rheumatoid arthritis (RA). Clin Exp Immunol 2012; 166:333-7. [PMID: 22059990 DOI: 10.1111/j.1365-2249.2011.04482.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Because activation of the alternative pathway (AP) of the complement system is an important aspect of both age-related macular degeneration (AMD) and rheumatoid arthritis (RA), we wished to address the question whether genetic risk factors of the AP inhibitor complement factor H (CFH) for AMD would also be risk factors for RA. For this purpose we genotyped single nucleotide polymorphisms (SNPs) in a Dutch set of RA patients and controls. Similarly, a meta-analysis using a Spanish cohort of RA as well as six large genome-wide association studies (GWAS) studies was performed. For these SNPs we analysed more than 6000 patients and 20,000 controls. The CFH variants, I62V, Y402H, IVS1 and IVS10, known to associate strongly with AMD, did not show a significant association with the risk of developing RA despite a strong statistical power to detect such differences. In conclusion, the major risk alleles of AMD in CFH do not have a similar effect on developing RA.
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Affiliation(s)
- L A Trouw
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.
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Gierman LM, van der Ham F, Koudijs A, Wielinga PY, Kleemann R, Kooistra T, Stoop R, Kloppenburg M, van Osch GJVM, Stojanovic-Susulic V, Huizinga TW, Zuurmond AM. Metabolic stress-induced inflammation plays a major role in the development of osteoarthritis in mice. ACTA ACUST UNITED AC 2011; 64:1172-81. [PMID: 22034049 DOI: 10.1002/art.33443] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Obesity is associated with systemic inflammation and is a risk factor for osteoarthritis (OA) development. We undertook this study to test the hypothesis that metabolic stress-induced inflammation, and not mechanical overload, is responsible for the development of high-fat diet-induced OA in mice. METHODS Human C-reactive protein (CRP)-transgenic mice received a high-fat diet without or with 0.005% (weight/weight) rosuvastatin or 0.018% (w/w) rosiglitazone, 2 different drugs with antiinflammatory properties. Mice fed chow were included as controls. After 42 weeks, mice were killed and histologic OA grading of the knees was performed. To monitor the overall inflammation state, systemic human CRP levels were determined. RESULTS Male mice on a high-fat diet had significantly higher OA grades than mice on chow and showed no correlation between OA severity and body weight. In male mice, high-fat diet-induced OA was significantly inhibited by rosuvastatin or rosiglitazone to OA grades observed in control mice. Both treatments resulted in reduced human CRP levels. Furthermore, a positive correlation was found between the relative individual induction of human CRP evoked by a high-fat diet on day 3 and OA grade at end point. CONCLUSION High-fat diet-induced OA in mice is due to low-grade inflammation and not to mechanical overload, since no relationship between body weight and OA grade was observed. Moreover, the OA process was inhibited to a great extent by treatment with 2 drugs with antiinflammatory properties. The inflammatory response to a metabolic high-fat challenge may predict individual susceptibility to developing OA later in life. The use of statins or peroxisome proliferator-activated receptor γ agonists (e.g., rosiglitazone) could be a strategy for interfering with the progression of OA.
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Affiliation(s)
- L M Gierman
- TNO and Leiden University Medical Center, Leiden, The Netherlands
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Scherer HU, van der Woude D, Willemze A, Trouw LA, Knevel R, Syversen SW, van der Linden MP, Lie B, Huizinga TW, van der Heijde DM, van der Helm-van Mil AH, Kvien TK, Toes RE. Distinct ACPA fine specificities, formed under the influence of HLA shared epitope alleles, have no effect on radiographic joint damage in rheumatoid arthritis. Ann Rheum Dis 2011; 70:1461-4. [DOI: 10.1136/ard.2010.146506] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ickinger C, Musenge E, Tikly M, Barnes J, Donnison C, Scott M, Bartholomew P, Rynne M, Hamilton J, Saravanan V, Heycock C, Kelly C, de la Torre I, Moura RA, Leandro M, Edwards J, Cambridge G, de la Torre I, Leandro M, Edwards J, Cambridge G, Daniels LE, Gullick NJ, Rees JD, Kirkham BW, Daniels LE, Gullick NJ, Kirkham BW, Rees J, Scott IC, Johnson D, Scott DL, Kingsley G, Ma MH, Cope AP, Scott DL, Kirkham BW, Brode S, Nisar MK, Ostor AJ, Gullick NJ, Oakley SP, Rees JD, Jones T, Mistlin A, Panayi GS, Kirkham BW, El Miedany Y, Palmer D, Porkodi R, Rajendran P, Waller R, Williamson L, Collins D, Price E, Juarez MJ, El Miedany Y, El Gaafary M, Youssef S, Palmer D, El Miedany Y, El Gaafary M, Palmer D, El Miedany Y, El Gaafary M, Palmer D, El Miedany Y, Palmer D, Cramp F, Hewlett S, Almeida C, Kirwan J, Choy E, Chalder T, Pollock J, Christensen R, Mirjafari H, Verstappen S, Bunn D, Edlin H, Charlton-Menys V, Pemberton P, Marshall T, Wilson P, Lunt M, Symmons D, Bruce IN, Bell C, Rowe IF, Jayakumar K, Norton SJ, Dixey J, Williams P, Young A, Kurunadalingam H, Parwaiz I, Kumar K, Howlett K, Hands B, Raza K, Pitzalis C, Buckley C, Kelly S, Filer A, Wheater G, Hogan VE, Onno Teng Y, Tekstra J, Tuck SP, Lafeber FP, Huizinga TW, Bijlsma JW, Francis RM, Datta HK, van Laar J, Pratt AG, Charles PJ, Choudhury M, Wilson G, Venables PJ, Isaacs J, Raza K, Kumar K, Stack R, Kwiatkowska B, Rantapaa-Dahlqvist S, Saxne T, Sidiropoulos P, Kteniadaki E, Misirlaki C, Mann H, Vencovsky J, Ciurea A, Tamborrini G, Kyburz D, Bastian H, Burmester GR, Detert J, Buckley CD, Sheehy C, Shipman A, Stech I, Mukhtyar C, Atzeni F, Sitia S, Tomasoni L, Gianturco L, Ricci C, Sarzi-Puttini P, De Gennaro Colonna V, Turiel M, Galloway J, Low A, Mercer LK, Dixon W, Ustianowski A, Watson K, Lunt M, Fisher B, Plant D, Lundberg K, Charles PJ, Barton A, Venables P, Pratt AG, Lorenzi AR, Wilson G, Platt PN, Isaacs J. Rheumatoid arthritis - clinical aspects: 134. Predictors of Joint Damage in South Africans with Rheumatoid Arthritis. Rheumatology (Oxford) 2011. [DOI: 10.1093/rheumatology/ker029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shi J, Bohringer S, Stahl EA, Raychaudhuri S, Kurreeman FA, Houwing-Duistermaat JJ, Huizinga TW, Toes RE, Trouw LA. The major risk alleles of age related macular degeneration in CFH, do not play a major role in rheumatoid arthritis. Ann Rheum Dis 2011. [DOI: 10.1136/ard.2010.148965.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Trouw LA, Kurreeman FAS, Daha N, Bohringer S, Stoeken-Rijsbergen G, Houwing-Duistermaat JJ, Huizinga TW, Toes RE. Genetic variants of C1q are a risk for rheumatoid arthritis. Ann Rheum Dis 2011. [DOI: 10.1136/ard.2010.148965.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Daha NA, Willemze A, Robinson DB, Oen KG, Smolik I, Hart D, Ghidey W, Houwing-Duistermaat JJ, Siminovitch K, Huizinga TW, El-Gabalawy HS, Toes RE. Genetic interaction in the susceptibility of rheumatoid arthritis. Ann Rheum Dis 2011. [DOI: 10.1136/ard.2010.149021.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lebrec JJP, Nishchenko I, van der Wijk HJ, Huizinga TW, van Houwelingen HC. A polygenic model for integration of linkage and pathway information. Genet Epidemiol 2009; 33:198-206. [PMID: 18979499 DOI: 10.1002/gepi.20370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We introduce an approximate model for linkage curves which accommodates the polygenic structure of complex diseases and accounts for the simultaneous action of closely located genes. The model is extended so that information on biological pathways can be integrated. Using data on rheumatoid arthritis, we describe some of the many applications which the model allows: it can be used to test for residual linkage in the presence of already established loci, to derive a global test for linkage, to test for the relevance of a gene list in terms of linkage and to help in candidate gene prioritization by integration of gene-pathway annotation data.
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Affiliation(s)
- J J P Lebrec
- Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands.
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van der Helm-van Mil AH, Kurreeman FA, Toes RE, Huizinga TW. Association of tumor necrosis factor alpha polymorphism and radiographic progression in rheumatoid arthritis: comment on the article by Khanna et al. Arthritis Rheum 2007; 56:1032-3; author reply1033-4. [PMID: 17330257 DOI: 10.1002/art.22405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
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ten Cate R, Smiers FJ, Bredius RGM, Lankester AC, van Suijlekom-Smit LWA, Huizinga TW, Egeler RM. Anti-CD20 monoclonal antibody (rituximab) for refractory autoimmune thrombocytopenia in a girl with systemic lupus erythematosus. Rheumatology (Oxford) 2004; 43:244. [PMID: 14739467 DOI: 10.1093/rheumatology/keg469] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tchetverikov I, Verzijl N, Huizinga TW, TeKoppele JM, Hanemaaijer R, DeGroot J. Active MMPs captured by alpha 2 macroglobulin as a marker of disease activity in rheumatoid arthritis. Clin Exp Rheumatol 2003; 21:711-8. [PMID: 14740449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
OBJECTIVE The aim of the present study was to analyze alpha 2 Macroglobulin/MMP (alpha 2M/MMP) complex formation and to investigate whether MMP activity in alpha 2M/MMP complexes in serum can be used as a disease marker in rheumatoid arthritis (RA). METHODS High and low molecular weight (H/LMW) substrates and inhibitors and size exclusion were used to analyze alpha 2M/MMP complex formation. LMW fluorogenic substrates were used to quantify the level of MMPs in alpha 2M/MMP complexes in the serum of RA patients and healthy controls. RESULTS Active MMPs were fully inhibited by LMW inhibitor BB94 in the presence of alpha 2M, whereas no inhibition was achieved by HMW inhibitor TIMP-1. Size exclusion analysis showed alpha 2M/MMP complex formation in buffer and in normal plasma spiked with activated MMPs, which indicated alpha 2M/MMP complex formation in the systemic circulation. MMP activity in alpha 2M/MMP complexes in the serum of RA patients was significantly higher than in the serum of healthy controls (P < 0.001). MMP activity levels in the serum of RA patients were correlated with ESR (r = 0.72, P < 0.001). CONCLUSION In the systemic circulation of RA patients, active MMPs form complexes with alpha 2M and can be detected using LMW fluorogenic substrates. MMP activity measurements in serum allow discrimination between RA patients and healthy controls and provide a new tool for the assessment of the disease process in RA.
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Affiliation(s)
- I Tchetverikov
- Division of Biomedical Research, TNO Prevention and Health, Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
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van Aken J, van Bilsen JH, Allaart CF, Huizinga TW, Breedveld FC. The Leiden Early Arthritis Clinic. Clin Exp Rheumatol 2003; 21:S100-5. [PMID: 14969059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
In 1993 a special Early Arthritis Clinic (EAC) was established at the Department of Rheumatology of the Leiden University Medical Center in order to detect and treat inflammatory disorders early in the disease state, especially early rheumatoid arthritis. Patients with confirmed arthritis of recent onset (less than 2 years) were included by rheumatologists and trained research nurses. Parameters of first and follow-up visits (3, 6 and 9 months and yearly) that were entered in the EAC-database include the medical history, physical-diagnostic examination, laboratory tests, questionnaires, radiographic joint scores and diagnosis. This database enables us to conduct research on arthritis, with an emphasis on rheumatoid arthritis, in many ways. Physicians and basic scientists have studied cellular immunology and genetic, environmental and clinical risk factors in order to determine the pathophysiologic mechanisms of inflammatory arthritis. The present article is a review on reports published from the EAC. Over the past ten years, these reports have been highly relevant for both daily clinical practice and research. Present and planned future studies, as described in this article, reconfirm the importance of an EAC framework to ensure that research continues on this disease in the Leiden EAC area.
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Affiliation(s)
- J van Aken
- Leiden University Medical Center, Leiden, The Netherlands
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van der Laan WH, Ronday HK, TeKoppele JM, Breedveld FC, Huizinga TW, Verheijen JH. No therapeutic effect of plasmin antagonist tranexamic acid in rheumatoid arthritis. A double-blind placebo-controlled pilot study. Clin Exp Rheumatol 2003; 21:359-62. [PMID: 12846058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
OBJECTIVE In the present study, the effects of plasmin antagonist tranexamic acid (TEA) on urinary pyridinoline excretion rates were investigated in rheumatoid arthritis (RA) patients. METHODS The study was set up as a double-blind placebo-controlled pilot study. Ten patients received tranexamic acid and 9 received placebo for 12 weeks. Urinary excretion rates of hydroxylysylpyridinoline (HP) and lysylpyridinoline (LP) were used as molecular markers of articular cartilage and bone degradation. In addition, clinical parameters of disease activity were assessed and CRP levels were measured. RESULTS Treatment with TEA did not reduce pyridinoline excretion, nor was any effect observed on clinical parameters of disease activity or on CRP levels. CONCLUSION The results of the present pilot study show no beneficial effect of TEA as adjuvant therapy in RA patients with respect to joint destruction or disease activity.
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Affiliation(s)
- W H van der Laan
- Division of Vascular and Connective Tissue Research, Gaubius Laboratory, TNO Prevention and Health, Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
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36
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van der Pol WL, Huizinga TW, Vidarsson G, van der Linden MW, Jansen MD, Keijsers V, de Straat FG, Westerdaal NA, de Winkel JG, Westendorp RG. Relevance of Fcgamma receptor and interleukin-10 polymorphisms for meningococcal disease. J Infect Dis 2001; 184:1548-55. [PMID: 11740730 DOI: 10.1086/324662] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2001] [Revised: 08/13/2001] [Indexed: 11/03/2022] Open
Abstract
The contribution of individual Fcgamma receptor (FcgammaR) subclasses to meningococcal phagocytosis was studied. In addition, functional FcgammaR polymorphisms were determined in 50 patients with meningococcal disease (MD), in 183 first-degree relatives of MD patients, and in 239 healthy control subjects, to study the association of FcgammaR genotypes with disease. Efficient internalization of opsonized Neisseria meningitidis serogroup B was mediated via multiple FcgammaR subclasses on phagocytes. Accordingly, a low-efficiency combination of FcgammaRIIa-R/R131, FcgammaRIIIa-F/F158, and FcgammaRIIIb-NA2/2 genotypes was increased significantly in relatives of patients with MD, compared with healthy control subjects (P<.05; odds ratio, 2.6; 95% confidence interval, 1.1-6.3). FcgammaRIIa and FcgammaRIIIa genotype distributions differed between patients with sepsis and those with meningitis. Combined genotypes of FcgammaRIIa and interleukin-10 -1082, which was previously reported as being associated with MD outcome, were distributed randomly in control subjects but not in relatives of patients with MD (P<.01). These data provide further evidence for the association of polymorphic genes on chromosome 1 and MD.
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Affiliation(s)
- W L van der Pol
- University Medical Center, Dept. of Immunology, Laboratory for Immunotherapy, 3584 EA Utrecht, The Netherlands.
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37
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van Ede AE, Laan RF, Blom HJ, Huizinga TW, Haagsma CJ, Giesendorf BA, de Boo TM, van de Putte LB. The C677T mutation in the methylenetetrahydrofolate reductase gene: a genetic risk factor for methotrexate-related elevation of liver enzymes in rheumatoid arthritis patients. Arthritis Rheum 2001. [PMID: 11710708 DOI: 10.1002/1529-0131(200111)44:11<2525::aid-art432>3.0.co;2-b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To study the possible relationship between the C677T mutation in the methylenetetrahydrofolate reductase (MTHFR) gene and the toxicity and efficacy of treatment with methotrexate (MTX) in patients with rheumatoid arthritis (RA). METHODS Genotype analysis of the MTHFR gene was done in 236 patients who started MTX treatment with (n = 157) or without (n = 79) folic or folinic acid supplementation. Outcomes were parameters of efficacy of MTX treatment, patient withdrawal due to adverse events, discontinuation of MTX treatment because of elevated liver enzyme levels, and the total occurrence of elevated liver enzyme levels during the study. Multivariate logistic regression analysis was used to study the relationship between the presence of the MTHFR C677T mutation and toxicity outcomes of MTX treatment. RESULTS Forty-eight percent of the patients showed the homozygous (T/T) or heterozygous (T/C) mutation. The presence of the C677CT or C677TT genotypes was associated with an increased risk of discontinuing MTX treatment because of adverse events (relative risk 2.01; 95% confidence interval 1.09, 3.70), mainly due to an increased risk of elevated liver enzyme levels (relative risk 2.38; 95% confidence interval 1.06, 5.34). Efficacy parameters were not significantly different between the patients with and those without the mutation. CONCLUSION The C677T mutation is the first identified genetic risk factor for elevated alanine aminotransferase values during MTX treatment in patients with RA. We postulate that the incidence of clinically important elevation of liver enzyme levels during MTX treatment is mediated by homocysteine metabolism. Supplementation with folic or folinic acid reduced the risk of toxicity-related discontinuation of MTX treatment both in patients with and in patients without the mutation.
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Affiliation(s)
- A E van Ede
- University Medical Center St. Radboud, Nijmegen, The Netherlands
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38
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van Ede AE, Laan RF, Blom HJ, Huizinga TW, Haagsma CJ, Giesendorf BA, de Boo TM, van de Putte LB. The C677T mutation in the methylenetetrahydrofolate reductase gene: a genetic risk factor for methotrexate-related elevation of liver enzymes in rheumatoid arthritis patients. Arthritis Rheum 2001; 44:2525-30. [PMID: 11710708 DOI: 10.1002/1529-0131(200111)44:11<2525::aid-art432>3.0.co;2-b] [Citation(s) in RCA: 156] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE To study the possible relationship between the C677T mutation in the methylenetetrahydrofolate reductase (MTHFR) gene and the toxicity and efficacy of treatment with methotrexate (MTX) in patients with rheumatoid arthritis (RA). METHODS Genotype analysis of the MTHFR gene was done in 236 patients who started MTX treatment with (n = 157) or without (n = 79) folic or folinic acid supplementation. Outcomes were parameters of efficacy of MTX treatment, patient withdrawal due to adverse events, discontinuation of MTX treatment because of elevated liver enzyme levels, and the total occurrence of elevated liver enzyme levels during the study. Multivariate logistic regression analysis was used to study the relationship between the presence of the MTHFR C677T mutation and toxicity outcomes of MTX treatment. RESULTS Forty-eight percent of the patients showed the homozygous (T/T) or heterozygous (T/C) mutation. The presence of the C677CT or C677TT genotypes was associated with an increased risk of discontinuing MTX treatment because of adverse events (relative risk 2.01; 95% confidence interval 1.09, 3.70), mainly due to an increased risk of elevated liver enzyme levels (relative risk 2.38; 95% confidence interval 1.06, 5.34). Efficacy parameters were not significantly different between the patients with and those without the mutation. CONCLUSION The C677T mutation is the first identified genetic risk factor for elevated alanine aminotransferase values during MTX treatment in patients with RA. We postulate that the incidence of clinically important elevation of liver enzyme levels during MTX treatment is mediated by homocysteine metabolism. Supplementation with folic or folinic acid reduced the risk of toxicity-related discontinuation of MTX treatment both in patients with and in patients without the mutation.
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Affiliation(s)
- A E van Ede
- University Medical Center St. Radboud, Nijmegen, The Netherlands
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39
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van der Linden MW, van der Slik AR, Zanelli E, Giphart MJ, Pieterman E, Schreuder GM, Westendorp RG, Huizinga TW. Six microsatellite markers on the short arm of chromosome 6 in relation to HLA-DR3 and TNF-308A in systemic lupus erythematosus. Genes Immun 2001; 2:373-80. [PMID: 11704803 DOI: 10.1038/sj.gene.6363794] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2001] [Revised: 08/06/2001] [Accepted: 08/06/2001] [Indexed: 12/22/2022]
Abstract
Differences in allelic distribution at loci surrounding the human HLA-DRB1 and tumor necrosis factor (TNF) genes have been observed in association with systemic lupus erythematosus (SLE). We investigated whether the association of HLA-DRB1*0301 (HLA-DR3) and TNF-308A with SLE could be attributed to polymorphic markers in the chromosomal region encompassed by HLA-DRB1 and HLA-C. Ninety-one consecutive Caucasian patients with SLE and 253 controls (organ donors) were typed for HLA-DRB1, microsatellites D6S1014, D6S273, TNFa, MIB, C1_2_5, and C1_3_2 and the single nucleotide polymorphism at position -308 in the promoter of TNF. The independent contribution of alleles to disease susceptibility was estimated by cross-tabulation and multivariate logistic regression. Possession of TNF-308A was associated with susceptibility to SLE (odds ratio [95% confidence interval], 3.70 [2.24-6.11]). This remained present after stratification on possession of HLA-DR3 (pooled odds ratio, 2.53 [1.37-4.70]). Stratification revealed a possible association of possession of C1_2_5*192 with protection from SLE beyond the effects of HLA-DR3 and TNF-308A. A gene dosage effect was observed for -308A only (homozygotes, 7.75 [3.01-20.0], heterozygotes, 3.15 [1.85-5.37]). In multivariate analysis, possession of HLA-DR3, TNF-308A, and C1_2_5*192 remained independently associated with susceptibility to SLE (2.58 [1.29-5.18], 2.76 [1.43-5.31], and 0.26 [0.10-0.66], respectively). The association of possession of TNF-308A with susceptibility to SLE cannot be attributed to linkage to HLA-DR3 alone, nor to other polymorphic markers in the vicinity of the TNF gene. Further loci that are independently associated with SLE might be in the vicinity of marker C1_2_5.
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Affiliation(s)
- M W van der Linden
- Department of Clinical Epidemiology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
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40
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Lard LR, Huizinga TW, Hazes JM, Vliet Vlieland TP. Delayed referral of female patients with rheumatoid arthritis. J Rheumatol 2001; 28:2190-2. [PMID: 11669154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
OBJECTIVE To analyze whether sex differences in referral exist in patients with rheumatoid arthritis (RA). METHODS At the Department of Rheumatology of the Leiden University Medical Center, a special early arthritis clinic (EAC) was established. General practitioners (GPs) were encouraged to refer patients with joint complaints to the EAC. Subsequently, the diagnosis RA was made by a rheumatologist. RESULTS In this report, 142 women and 82 men were included. The delays in patient's first encounter with a GP for both sexes were comparable. However, a significant difference in the GP's delay in referring female patients with RA to the EAC in comparison with male patients was observed (median of 93 days vs 58 days; p = 0.008). CONCLUSION This report determined GP referral delay of female patients to a rheumatologist. GPs should be made aware that early detection and early referral of patients with RA are crucial for early treatment.
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Affiliation(s)
- L R Lard
- Department of Rheumatology, Leiden University Medical Center, The Netherlands.
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41
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Abstract
Within the past few years, a clearly defined case definition system for central nervous system systemic lupus erythematosus (CNS-SLE) has been established. This has allowed cross-study comparisons of patients fulfilling the specific case definitions. New imaging techniques used on the subgroup of CNS-SLE patients that did not have any evidence for infarctions suggest that in these patients symptoms are associated with a diffuse process in the brain. Most likely this process leads to axonal damage and demyelination, ultimately leading to cerebral atrophy. With respect to the diagnostic work-up of SLE patients with neuropsychiatric symptoms, it has become clear that cranial magnetic resonance imaging is the technique of choice. Preliminary studies using quantitative magnetic resonance imaging techniques suggest that patients with neuropsychiatric symptoms caused by active CNS-SLE can be differentiated from patients with the same symptoms caused by residual disease.
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Affiliation(s)
- T W Huizinga
- Department of Rheumatology and Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands.
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42
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van Ede AE, Laan RF, Rood MJ, Huizinga TW, van de Laar MA, van Denderen CJ, Westgeest TA, Romme TC, de Rooij DJ, Jacobs MJ, de Boo TM, van der Wilt GJ, Severens JL, Hartman M, Krabbe PF, Dijkmans BA, Breedveld FC, van de Putte LB. Effect of folic or folinic acid supplementation on the toxicity and efficacy of methotrexate in rheumatoid arthritis: a forty-eight week, multicenter, randomized, double-blind, placebo-controlled study. Arthritis Rheum 2001. [PMID: 11465701 DOI: 10.1002/1529-0131(200107)44:7<1515::aid-art273>3.0.co;2-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To study the effect of folates on discontinuation of methotrexate (MTX) as single-drug antirheumatic treatment due to toxicity, to determine which type of adverse events are reduced, to study the effects on the efficacy of MTX, and to compare folic with folinic acid supplementation in a 48-week, randomized, double-blind, placebo-controlled trial. METHODS Patients with active RA (n = 434) were randomly assigned to receive MTX plus either placebo, folic acid (1 mg/day), or folinic acid (2.5 mg/week). The initial MTX dosage was 7.5 mg/week; dosage increases were allowed up to a maximum of 25 mg/week for insufficient responses. Folate dosages were doubled once the dosage of MTX reached 15 mg/week. The primary end point was MTX withdrawal because of adverse events. Secondary end points were the MTX dosage and parameters of efficacy and toxicity of MTX. RESULTS Toxicity-related discontinuation of MTX occurred in 38% of the placebo group, 17% of the folic acid group, and 12% of the folinic acid group. These between-group differences were explained by a decreased incidence of elevated liver enzyme levels in the folate supplementation groups. No between-group differences were found in the frequency of other adverse events or in the duration of adverse events. Parameters of disease activity improved equally in all groups. Mean dosages of MTX at the end of the study were lower in the placebo group (14.5 mg/week) than in the folic and folinic acid groups (18.0 and 16.4 mg/week, respectively). CONCLUSION Both folate supplementation regimens reduced the incidence of elevated liver enzyme levels during MTX therapy, and as a consequence, MTX was discontinued less frequently in these patients. Folates seem to have no effect on the incidence, severity, and duration of other adverse events, including gastrointestinal and mucosal side effects. Slightly higher dosages of MTX were prescribed to obtain similar improvement in disease activity in the folate supplementation groups.
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Affiliation(s)
- A E van Ede
- University Medical Center St Radboud, Nijmegen, The Netherlands
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43
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van Ede AE, Laan RF, Rood MJ, Huizinga TW, van de Laar MA, van Denderen CJ, Westgeest TA, Romme TC, de Rooij DJ, Jacobs MJ, de Boo TM, van der Wilt GJ, Severens JL, Hartman M, Krabbe PF, Dijkmans BA, Breedveld FC, van de Putte LB. Effect of folic or folinic acid supplementation on the toxicity and efficacy of methotrexate in rheumatoid arthritis: a forty-eight week, multicenter, randomized, double-blind, placebo-controlled study. Arthritis Rheum 2001. [PMID: 11465701 DOI: 10.1002/1529-0131(200107)44:73.0.co;2-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE To study the effect of folates on discontinuation of methotrexate (MTX) as single-drug antirheumatic treatment due to toxicity, to determine which type of adverse events are reduced, to study the effects on the efficacy of MTX, and to compare folic with folinic acid supplementation in a 48-week, randomized, double-blind, placebo-controlled trial. METHODS Patients with active RA (n = 434) were randomly assigned to receive MTX plus either placebo, folic acid (1 mg/day), or folinic acid (2.5 mg/week). The initial MTX dosage was 7.5 mg/week; dosage increases were allowed up to a maximum of 25 mg/week for insufficient responses. Folate dosages were doubled once the dosage of MTX reached 15 mg/week. The primary end point was MTX withdrawal because of adverse events. Secondary end points were the MTX dosage and parameters of efficacy and toxicity of MTX. RESULTS Toxicity-related discontinuation of MTX occurred in 38% of the placebo group, 17% of the folic acid group, and 12% of the folinic acid group. These between-group differences were explained by a decreased incidence of elevated liver enzyme levels in the folate supplementation groups. No between-group differences were found in the frequency of other adverse events or in the duration of adverse events. Parameters of disease activity improved equally in all groups. Mean dosages of MTX at the end of the study were lower in the placebo group (14.5 mg/week) than in the folic and folinic acid groups (18.0 and 16.4 mg/week, respectively). CONCLUSION Both folate supplementation regimens reduced the incidence of elevated liver enzyme levels during MTX therapy, and as a consequence, MTX was discontinued less frequently in these patients. Folates seem to have no effect on the incidence, severity, and duration of other adverse events, including gastrointestinal and mucosal side effects. Slightly higher dosages of MTX were prescribed to obtain similar improvement in disease activity in the folate supplementation groups.
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Affiliation(s)
- A E van Ede
- University Medical Center St Radboud, Nijmegen, The Netherlands
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44
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45
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van Ede AE, Laan RF, Rood MJ, Huizinga TW, van de Laar MA, van Denderen CJ, Westgeest TA, Romme TC, de Rooij DJ, Jacobs MJ, de Boo TM, van der Wilt GJ, Severens JL, Hartman M, Krabbe PF, Dijkmans BA, Breedveld FC, van de Putte LB. Effect of folic or folinic acid supplementation on the toxicity and efficacy of methotrexate in rheumatoid arthritis: a forty-eight week, multicenter, randomized, double-blind, placebo-controlled study. Arthritis Rheum 2001; 44:1515-24. [PMID: 11465701 DOI: 10.1002/1529-0131(200107)44:7<1515::aid-art273>3.0.co;2-7] [Citation(s) in RCA: 237] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To study the effect of folates on discontinuation of methotrexate (MTX) as single-drug antirheumatic treatment due to toxicity, to determine which type of adverse events are reduced, to study the effects on the efficacy of MTX, and to compare folic with folinic acid supplementation in a 48-week, randomized, double-blind, placebo-controlled trial. METHODS Patients with active RA (n = 434) were randomly assigned to receive MTX plus either placebo, folic acid (1 mg/day), or folinic acid (2.5 mg/week). The initial MTX dosage was 7.5 mg/week; dosage increases were allowed up to a maximum of 25 mg/week for insufficient responses. Folate dosages were doubled once the dosage of MTX reached 15 mg/week. The primary end point was MTX withdrawal because of adverse events. Secondary end points were the MTX dosage and parameters of efficacy and toxicity of MTX. RESULTS Toxicity-related discontinuation of MTX occurred in 38% of the placebo group, 17% of the folic acid group, and 12% of the folinic acid group. These between-group differences were explained by a decreased incidence of elevated liver enzyme levels in the folate supplementation groups. No between-group differences were found in the frequency of other adverse events or in the duration of adverse events. Parameters of disease activity improved equally in all groups. Mean dosages of MTX at the end of the study were lower in the placebo group (14.5 mg/week) than in the folic and folinic acid groups (18.0 and 16.4 mg/week, respectively). CONCLUSION Both folate supplementation regimens reduced the incidence of elevated liver enzyme levels during MTX therapy, and as a consequence, MTX was discontinued less frequently in these patients. Folates seem to have no effect on the incidence, severity, and duration of other adverse events, including gastrointestinal and mucosal side effects. Slightly higher dosages of MTX were prescribed to obtain similar improvement in disease activity in the folate supplementation groups.
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Affiliation(s)
- A E van Ede
- University Medical Center St Radboud, Nijmegen, The Netherlands
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46
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Bayley JP, de Rooij H, van den Elsen PJ, Huizinga TW, Verweij CL. Functional analysis of linker-scan mutants spanning the -376, -308, -244, and -238 polymorphic sites of the TNF-alpha promoter. Cytokine 2001; 14:316-23. [PMID: 11497492 DOI: 10.1006/cyto.2001.0902] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Tumor necrosis factor alpha (TNF-alpha) promoter polymorphisms have been linked to a large number of diseases but studies examining the possible direct functional effects of these polymorphisms have been contradictory. Previous studies compared TNF-alpha promoter constructs containing single nucleotide changes. We have now made a series of mutant constructs in which regions of the TNF-alpha promoter containing suspected functional single nucleotide polymorphisms, including -376, -308, -244 and -238, were replaced by a 10 bp linker scan sequence. These constructs were transiently transfected into the T cell line Jurkat, the B cell line Raji, and the monocytic cell line U937, and tested for basal and induced transcriptional activity. Mutant constructs covering both the -308 and -376 polymorphisms showed no significant differences in either basal or induced transcriptional activity. Constructs covering the -244/-238 region showed a small increase in basal activity in the U937 cell line. These results indicate (i) that the -308 and -376 regions are of no functional relevance for TNF-alpha promoter transcription, and (ii) that the -244/-238 region does not influence transcription in some cell lines but may have some role in transcription in others.
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Affiliation(s)
- J P Bayley
- Department of Rheumatology, Leiden University Medical Center, 2300 RC Leiden, The Netherlands
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47
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Kaijzel EL, Bayley JP, van Krugten MV, Smith L, van de Linde P, Bakker AM, Breedveld FC, Huizinga TW, Verweij CL. Allele-specific quantification of tumor necrosis factor alpha (TNF) transcription and the role of promoter polymorphisms in rheumatoid arthritis patients and healthy individuals. Genes Immun 2001; 2:135-44. [PMID: 11426322 DOI: 10.1038/sj.gene.6363747] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2000] [Revised: 02/14/2001] [Accepted: 02/14/2001] [Indexed: 11/09/2022]
Abstract
Interindividual variation in the expression of tumor necrosis factor alpha (TNF) suggests the existence of functionally distinct TNF alleles that could play a role in susceptibility to TNF associated diseases such as rheumatoid arthritis (RA). To determine whether differential expression of TNF alleles exists, the relative contribution of TNF alleles in total TNF RNA production in peripheral blood mononuclear cells (PBMC) of healthy individuals and synovial tissue of RA patients was analyzed. By using a Tai I restriction fragment length polymorphism (RFLP) located at position +489 in the first intron of the gene, the relative contribution of each allele in precursor transcript production in heterozygous individuals could be measured. By means of this method we studied whether differences exist between TNF alleles in TNF pre-mRNA production. The relative contribution of TNF alleles to the non-spliced RNA pool was measured in PBMC of healthy individuals which were stimulated with LPS, PMA and anti-CD3 and anti-CD28 monoclonal antibodies for different time periods. Moreover, synovial biopsy material of RA patients was analyzed. The results of this study do not reveal a difference in the contribution of distinct TNF alleles in TNF pre-mRNA production upon in vitro and physiological stimulation conditions in healthy individuals and RA patients. Since some of the individuals whose PBMC were tested were also heterozygous for either -308, -1031, -863, -857 TNF promoter/enhancer single nucleotide polymorphisms (SNPs), the data argue against functional relevance of these TNF promoter/enhancer SNPs in the regulation of transcription. In conclusion, the data do not provide evidence for the existence of transcriptionally distinct TNF alleles to explain interindividual variation in TNF expression.
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Affiliation(s)
- E L Kaijzel
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
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48
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Gibson AW, Edberg JC, Wu J, Westendorp RG, Huizinga TW, Kimberly RP. Novel single nucleotide polymorphisms in the distal IL-10 promoter affect IL-10 production and enhance the risk of systemic lupus erythematosus. J Immunol 2001; 166:3915-22. [PMID: 11238636 DOI: 10.4049/jimmunol.166.6.3915] [Citation(s) in RCA: 296] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Family studies of first-degree relatives and analysis of twins indicate that as much as 75% of the differences in quantitative IL-10 production in man derive from heritable genetic factors. Studies of single nucleotide polymorphisms (SNP) in the proximal 1.0 kb of the IL-10 promoter have yielded inconsistent association with IL-10 production and variable results in promoter-reporter studies. However, in normal donors, an association of quantitative production with certain alleles of the IL-10.R short tandem repeat polymorphism at -4.0 kb suggested that SNPs in the more distal promoter might be informative. We have identified seven novel SNP sites in the genomic sequence of the first 4 kb of the IL-10 promoter region 5' to the ATG start site from Caucasian individuals with either a high or a low IL-10 production phenotype. We have also identified eight SNP haplotypes in the distal promoter that segregate with significant differences in quantitative IL-10 production in normal donors. These SNPs are significantly associated with systemic lupus erythematosus in African-Americans and may define one component of the genetic susceptibility to systemic lupus erythematosus in this group.
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Affiliation(s)
- A W Gibson
- Division of Clinical Immunology and Rheumatology, Department of Medicine, University of Alabama, Birmingham, AL 35294, USA
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49
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Bruijn JA, Verburgh CA, Huizinga TW. Classifying lupus nephritis: a 32-year-old woman with systemic lupus erythematosus and nephritic syndrome. Am J Kidney Dis 2001; 37:653-7. [PMID: 11228195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
- J A Bruijn
- Departments of Pathology, Nephrology, and Rheumatology, Leiden University Medical Center, Leiden, The Netherlands.
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50
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Rood MJ, Haverman JF, van Duinen SG, Breedveld FC, Verschuuren JJ, Huizinga TW. CNS involvement in systemic lupus erythematosus: a case with remarkable histopathological findings. Ann Rheum Dis 2001; 60:299-300. [PMID: 11171699 PMCID: PMC1753578 DOI: 10.1136/ard.60.3.299] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- M J Rood
- Department of Rheumatology, Leiden University Medical Centre, Leiden, The Netherlands
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