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Backström M, Salo H, Kärki J, Aalto K, Rebane K, Levälampi T, Grönlund MM, Kröger L, Pohjankoski H, Hietanen M, Korkatti K, Kuusalo L, Rantalaiho V, Huhtakangas J, Relas H, Pääkkö T, Löyttyniemi E, Sokka-Isler T, Vähäsalo P. The feasibility of existing JADAS10 cut-off values in clinical practice: a study of data from The Finnish Rheumatology Quality Register. Pediatr Rheumatol Online J 2023; 21:35. [PMID: 37060076 PMCID: PMC10105448 DOI: 10.1186/s12969-023-00814-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 03/31/2023] [Indexed: 04/16/2023] Open
Abstract
BACKGROUND The ten-joint juvenile arthritis disease activity score (JADAS10) is designed to measure the level of disease activity in non-systemic juvenile idiopathic arthritis by providing a single numeric score. The clinical JADAS10 (cJADAS10) is a modification of the JADAS10 that excludes erythrocyte sedimentation rate (ESR). Three different sets of JADAS10/cJADAS10 cut-offs for disease activity states have been published, i.e., the Backström, Consolaro, and Trincianti cut-offs. The objective of this study was to investigate the performance of existing JADAS10 cut-offs in real-life settings using patient data from The Finnish Rheumatology Quality Register (FinRheuma). METHODS Data were collected from the FinRheuma register. The proportion of patients with an active joint count (AJC) above zero when classified as being in clinically inactive disease (CID) or low disease activity (LDA) groups according to existing JADAS10/cJADAS10 cut-off levels were analyzed. RESULTS A significantly larger proportion of the patients classified as being in CID had an AJC > 0 when using the JADAS10/cJADAS10 cut-offs by Trincianti et al. compared to those for the other cut-offs. In the LDA group, a significantly larger proportion of the polyarticular patients (35%/29%) had an AJC of two when Trincianti JADAS10/cJADAS10 cut-offs were used compared with when Backström (11%/10%) and Consolaro (7%/3%) JADAS10/cJADAS10 cut-offs were used. CONCLUSIONS We found the cut-offs proposed by Consolaro et al. to be the most feasible, since these cut-off levels for CID do not result in the misclassification of active disease as remission, and the proportion of patients with AJC > 1 in the LDA group is lowest using these cut-offs.
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Affiliation(s)
- M Backström
- Department of Paediatrics, The Wellbeing Services County of Ostrobothnia, Vaasa, Finland.
- PEDEGO Research Unit, University of Oulu, Oulu, Finland.
- Vaasa Central Hospital, U2, Hietalahdenkatu 2-4, 65130, Vaasa, Finland.
| | - H Salo
- Knowledge Brokers Department, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - J Kärki
- Department of Children and Adolescents, Kanta-Häme Central Hospital, Hämeenlinna, Finland
- The Finnish Institute for Welfare and Health, The Finnish Rheumatology Quality Register, Helsinki, Finland
| | - K Aalto
- New Children's Hospital, Pediatric Research Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - K Rebane
- New Children's Hospital, Pediatric Research Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - T Levälampi
- New Children's Hospital, Pediatric Research Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - M-M Grönlund
- Department of Paediatrics, Turku University Hospital, Turku, Finland
| | - L Kröger
- Department of Children and Adolescents, Kuopio University Hospital, Kuopio, Finland
| | - H Pohjankoski
- Department of Children and Adolescents, Päijät-Häme Central Hospital, Lahti, Finland
| | - M Hietanen
- Department of Children and Adolescents, Päijät-Häme Central Hospital, Lahti, Finland
| | - K Korkatti
- Department of Paediatrics, Central Ostrobothnia Central Hospital, Kokkola, Finland
| | - L Kuusalo
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - V Rantalaiho
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Centre for Rheumatic Diseases, Tampere University Hospital, Tampere, Finland
- Centre for Rheumatic Diseases, Kanta-Häme Central Hospital, Hämeenlinna, Finland
| | - J Huhtakangas
- Division of Rheumatology, Kuopio University Hospital, Kuopio, Finland
| | - H Relas
- Department of Rheumatology, Inflammation Center, Helsinki University Hospital, and University of Helsinki, Helsinki, Finland
| | - T Pääkkö
- Department of Internal Medicine, Oulu University Hospital, Oulu, Finland
| | - E Löyttyniemi
- Department of Biostatistics, University of Turku, Turku, Finland
| | - T Sokka-Isler
- University of Eastern Finland, Kuopio and Central Finland Central Hospital, Jyväskylä, Finland
| | - P Vähäsalo
- PEDEGO Research Unit, University of Oulu, Oulu, Finland
- Department of Paediatrics, Oulu University Hospital, Oulu, Finland
- Medical Research Center, Oulu University Hospital and University of Oulu, Oulu, Finland
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Hiltunen J, Parmanne P, Sokka T, Lamberg T, Isomäki P, Kaipiainen-Seppänen O, Peltomaa R, Uutela T, Pirilä L, Taimen K, Kauppi MJ, Yli-Kerttula T, Tuompo R, Relas H, Kortelainen S, Paalanen K, Asikainen J, Ekman P, Santisteban A, Vidqvist KL, Tadesse K, Romu M, Borodina J, Elfving P, Valleala H, Leirisalo-Repo M, Rantalaiho V, Kautiainen H, Jokiranta TS, Eklund KK. Immunogenicity of subcutaneous TNF inhibitors and its clinical significance in real-life setting in patients with spondyloarthritis. Rheumatol Int 2021; 42:1015-1025. [PMID: 34357455 PMCID: PMC9124652 DOI: 10.1007/s00296-021-04955-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 04/29/2021] [Accepted: 07/17/2021] [Indexed: 01/17/2023]
Abstract
Key messages Considerable proportion of patients with SpA have been immunized to the subcutaneous anti-TNF drug they are using. Concomitant use of MTX protects from immunization, whereas SASP does not. Patients with SpA using subcutaneous anti-TNF drugs can benefit from monitoring of the drug trough levels. Abstract Immunization to biological drugs can lead to decreased efficacy and increased risk of adverse effects. The objective of this cross-sectional study was to assess the extent and significance of immunization to subcutaneous tumor necrosis factor (TNF) inhibitors in axial spondyloarthritis (axSpA) patients in real-life setting. A serum sample was taken 1–2 days before the next drug injection. Drug trough concentrations, anti-drug antibodies (ADAb) and TNF-blocking capacity were measured in 273 patients with axSpA using subcutaneous anti-TNF drugs. The clinical activity of SpA was assessed using the Bath AS Disease Activity Index (BASDAI) and the Maastricht AS Entheses Score (MASES). ADAb were found in 11% of the 273 patients: in 21/99 (21%) of patients who used adalimumab, in 0/83 (0%) of those who used etanercept, in 2/79 (3%) of those who used golimumab and in 6/12 (50%) of those who used certolizumab pegol. Use of methotrexate reduced the risk of formation of ADAb, whereas sulfasalazine did not. Presence of ADAb resulted in decreased drug concentration and reduced TNF-blocking capacity. However, low levels of ADAb had no effect on TNF-blocking capacity and did not correlate with disease activity. The drug trough levels were below the consensus target level in 36% of the patients. High BMI correlated with low drug trough concentration. Patients with low drug trough levels had higher disease activity. The presence of anti-drug antibodies was associated with reduced drug trough levels, and the patients with low drug trough levels had higher disease activity. The drug trough levels were below target level in significant proportion of patients and, thus, measuring the drug concentration and ADAb could help to optimize the treatment in SpA patients. Supplementary Information The online version contains supplementary material available at 10.1007/s00296-021-04955-8.
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Affiliation(s)
- J Hiltunen
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland.
| | - P Parmanne
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland
| | - T Sokka
- Department of Rheumatology, Jyväskylä Central Hospital, Jyväskylä, Finland.,University of Eastern Finland, Kuopio, Finland
| | - T Lamberg
- United Medix Laboratories, Helsinki, Finland
| | - P Isomäki
- Department of Rheumatology, Tampere University Hospital, Tampere, Finland
| | | | - R Peltomaa
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland
| | - T Uutela
- Department of Rheumatology, Central Hospital of Lapland, Rovaniemi, Finland
| | - L Pirilä
- Department of Rheumatology, Turku University Hospital, Turku, Finland
| | - K Taimen
- Department of Rheumatology, Turku University Hospital, Turku, Finland
| | - M J Kauppi
- Department of Rheumatology, Päijät-Häme Central Hospital, Lahti, Finland.,University of Tampere, Tampere, Finland
| | - T Yli-Kerttula
- Department of Rheumatology, Satakunta Central Hospital, Rauma, Finland
| | - R Tuompo
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland
| | - H Relas
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland
| | - S Kortelainen
- Department of Rheumatology, Turku University Hospital, Turku, Finland
| | - K Paalanen
- Department of Rheumatology, Jyväskylä Central Hospital, Jyväskylä, Finland.,University of Eastern Finland, Kuopio, Finland
| | - J Asikainen
- Department of Rheumatology, Jyväskylä Central Hospital, Jyväskylä, Finland.,University of Eastern Finland, Kuopio, Finland
| | - P Ekman
- Department of Rheumatology, Satakunta Central Hospital, Rauma, Finland
| | - A Santisteban
- Department of Rheumatology, Mikkeli Central Hospital, Mikkeli, Finland
| | - K-L Vidqvist
- Department of Rheumatology, Tampere University Hospital, Tampere, Finland
| | - K Tadesse
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland
| | - M Romu
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland
| | - J Borodina
- Department of Rheumatology, Jyväskylä Central Hospital, Jyväskylä, Finland.,University of Eastern Finland, Kuopio, Finland
| | - P Elfving
- Department of Rheumatology, Kuopio University Hospital, Kuopio, Finland
| | - H Valleala
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland
| | - M Leirisalo-Repo
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland
| | - V Rantalaiho
- Department of Rheumatology, Tampere University Hospital, Tampere, Finland
| | | | | | - K K Eklund
- Department of Rheumatology, Helsinki University and Helsinki University Hospital, Haartmaninkatu 4, P. O. Box 372, 00029 HUS, Helsinki, Finland.,Translational Immunology Research Program, Helsinki University and Orton Research Foundation, Orton Hospital, Helsinki, Finland
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Puolakka K, Rantalaiho V, Kautiainen H. SAT0592 Peak-Incidence Age in Rheumatoid Arthritis Has Not Shifted in Finland since The Turn of Millennium:. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5860] [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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Rantalaiho V, Sandström T, Koski J, Kautiainen H, Leirisalo-Repo M. THU0160 Excellent Outcomes Sustained Even in Long-Term When Targeted Treatment with A Combination of Traditional DMARDs Is Used in Early Rheumatoid Arthritis. The 10-Year Follow-Up Results of A Randomized Clinical Trial, The NEO-RACO Trial. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2426] [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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Rantalaiho V, Kautiainen H, Virta L, Puolakka K. FRI0560 The Increase in The Nationwide Incidence of Inflammatory Rheumatic Diseases in Finland during This Millennium:. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2465] [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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Kuusalo L, Puolakka K, Kautiainen H, Blåfield H, Eklund KK, Ilva K, Kaipiainen-Seppänen O, Karjalainen A, Korpela M, Valleala H, Leirisalo-Repo M, Rantalaiho V, for the NEO-RACo Study Group. Impact of physicians’ adherence to treat-to-target strategy on outcomes in early rheumatoid arthritis in the NEO-RACo trial. Scand J Rheumatol 2015; 44:449-55. [DOI: 10.3109/03009742.2015.1043142] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kuusalo L, Puolakka K, Kautiainen H, Leirisalo-Repo M, Rantalaiho V. AB0362 Depressive Symptoms and the Risk of Work Disability in Early Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3163] [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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Kuusalo L, Puolakka K, Kautiainen H, Leirisalo-Repo M, Rantalaiho V. THU0119 Impact of Neglecting Intra-Articular Glucocorticoid-Injections in Remission Targeted Treatment of Early Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3150] [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: 11/03/2022]
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Puolakka K, Kautiainen H, Rantalaiho V, Martikainen J, Leirisalo-Repo M. SAT0154 A 6-Month Induction Treatment with Infliximab Added on Intensive Combination Therapy with Conventional Dmards and Low-Dose Prednisolone Saves Work Productivity Loss During the First Treatment Year in Patients with Early Rheumatoid Arthritis: Table 1. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.6328] [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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Martikainen JA, Krol M, Rantalaiho V, Kautiainen H, Puolakka K. Long-Term Work Productivity Costs Among Subjects With Early Rheumatoid Arthritis - A Nationwide Analysis Based on 7,831 Subjects' Sickness Absence Days and Income. Value Health 2014; 17:A383. [PMID: 27200859 DOI: 10.1016/j.jval.2014.08.2628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
| | - M Krol
- Erasmus University, Rotterdam, The Netherlands
| | | | - H Kautiainen
- Helsinki University Central Hospital, Helsinki, Finland
| | - K Puolakka
- Lappeenranta Central Hospital, Lappeenranta, Finland
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Kerola AM, Kauppi MJ, Nieminen TVM, Rantalaiho V, Kautiainen H, Kerola T, Virta LJ, Pohjolainen T, Puolakka K. Psychiatric and cardiovascular comorbidities as causes of long-term work disability among individuals with recent-onset rheumatoid arthritis. Scand J Rheumatol 2014; 44:87-92. [DOI: 10.3109/03009742.2014.929174] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Puolakka K, Rantalaiho V, Kautiainen H, Färkkilä M. FRI0061 The Concomitance of Inflammatory Bowel Disease with Incident Rheumatoid Arthritis and Ankylosing Spondylitis in Finland. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.5122] [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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Aaltonen K, Joensuu J, Liisa V, Sokka T, Relas H, Valleala H, Rantalaiho V, Pirilä L, Puolakka K, Uusitalo T, Blom M, Konttinen Y, Nordström D. THU0178 Rates of Serious Infections and Malignancies among Rheumatoid Arthritis Patients Receiving Either Tnf-Blocker or Rituximab Therapy in Finland. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.2568] [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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Rantalaiho V, Korpela M, Hannonen P, Kaipiainen-Seppänen O, Möttönen T, Kauppi M, Karjalainen A, Laiho K, Kautiainen H, Leirisalo-Repo M. OP0147 Targeted treatment with combination DMARDs produces excellent clinical and radiographic long-term outcomes in early rheumatoid arthritis regardless of initial infliximab. The 5-year follow-up results of the neo-raco trial. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2012-eular.1830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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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Rantalaiho V, Kautiainen H, Korpela M, Möttönen T. SAT0026 Targeted Treatment and Combination Dmard Therapy are Additively Important for Reaching Remission in Early Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1752] [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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Rantalaiho V, Kautiainen H, Korpela M, Järvenpää S, Leirisalo-Repo M. FRI0092 Disease activity at three months is an excellent predictor of long-term treatment failure in actively treated rheumatoid arthritis patients, 5-year results of the neo-raco trial. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1219] [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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Puolakka K, Sokka T, Kautiainen H, Järvenpää S, Rantalaiho V, Eklund K. FRI0544 Self-experienced risk for loss of work productivity among patients with ra seen in rheumatology outpatient clinics in finland. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1671] [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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Rantalaiho V, Kautiainen H, Möttönen T, Puolakka K. SAT0027 Targeted Treatment and Combination Dmard Therapy are Additively Important for Maintaining Work Ability in Early Rheumatoid Arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1753] [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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Rantalaiho V, Kautiainen H, Korpela M, Leirisalo-Repo M. SAT0028 Strict Acr-Remission within 6 Months Predicts Sustained Long-Term Very Low Disease Activity in Actively Treated Rheumatoid Arthritis Patients, 5-Year Results of the Neo-Raco Trial. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1754] [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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Rantalaiho V, Kautiainen H, Virta L, Korpela M, Möttönen T, Puolakka K. Trends in treatment strategies and the usage of different disease-modifying anti-rheumatic drugs in early rheumatoid arthritis in Finland. Results from a nationwide register in 2000-2007. Scand J Rheumatol 2010; 40:16-21. [PMID: 20726683 DOI: 10.3109/03009742.2010.486768] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To determine which disease-modifying anti-rheumatic drugs (DMARDs) are currently used by Finnish rheumatologists to treat early rheumatoid arthritis (RA). METHODS Information on sex, date of birth, and date of special medicine reimbursement decision for all new RA patients was collected from a nationwide register maintained by the Social Insurance Institution (SII) during the time period from 1 January 2000 to 31 December 2007. Patient cohorts were registered in 2-year time periods (2000-01, 2002-03, 2004-05, 2006-07) and DMARDs purchased by the patient cohorts during the first year after the date of reimbursement decision for RA were registered. The frequencies of early drug treatment strategies (combination of DMARDs, single DMARD, or no DMARDs) were evaluated. RESULTS A total of 14 878 (68.0% female, 62.6% rheumatoid factor (RF)-positive) patients were identified. Between 2000 and 2001 the most commonly used treatment strategy for early RA during the first 3 months was single DMARD treatment (56.1%) and the most commonly used DMARD during the first year was sulfasalazine (63.0%), while between 2006 and 2007 the respective treatments were combination DMARDs (55.3%) and methotrexate (69.0%). The change in treatment strategies as well as in DMARDs used was highly significant (p < 0.001 for linearity). At the end of the study period only 4.9% of the patients with early RA were not receiving DMARDs during the first 3 months. CONCLUSIONS Currently, combination therapy including methotrexate is the most commonly prescribed treatment strategy for early RA in Finland. In recent years, an increasing number of active drug treatments have been taken into practice.
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Affiliation(s)
- V Rantalaiho
- Department of Internal Medicine, Centre for Rheumatic Diseases, Tampere University Hospital, PO Box 2000, FI-33521 Tampere, Finland.
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Wirta V, Saransaari P, Wirta O, Rantalaiho V, Oja SS, Pasternack A, Koivula T, Lehtimäki T. Methylenetetrahydrofolate reductase gene polymorphism, hyperhomocysteinemia and occlusive retinal vascular disease in type 2 diabetic and non-diabetic subjects. Clin Nephrol 2002; 58:171-8. [PMID: 12356186 DOI: 10.5414/cnp58171] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [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: 11/18/2022] Open
Abstract
BACKGROUND Methylenetetrahydrofolate reductase (MTHFR) gene polymorphism may cause hyperhomocysteinemia, which affects the vascular endothelium and may induce occlusive vascular disease (OVD). Hypertension thickens small-sized arterial walls and attenuates intramural blood flow. Such OVD can be studied in retinal angiograms as a decrease in the arterio-venous ratio (AVR). Diabetes, by altering microvascular structure and function, in many ways modifies this AVR. OBJECTIVE To assess whether MTHFR gene polymorphism (C677T) by causing hyperhomocysteinemia affects the retinal AVR in type 2 diabetic and non-diabetic subjects. METHODS Eighty-four recently diagnosed (< 1 year) type 2 diabetic and 115 non-diabetic subjects were included in the study. Retinal fluoresceine angiograms were recorded and the mean AVR was calculated by measuring transverse vessel diameters at 6 locations. The mean AVR was used as a marker of OVD. The MTHFR VV, VA and AA genotypes were determined by PCR and plasma homocysteine by high-pressure liquid chromatography. RESULTS In the diabetic subjects with the VV, VA and AA genotypes, the plasma homocysteine levels were 16.5 +/- 7, 12.5 +/- 4.6 and 11.3 +/- 4.9 microM, respectively (p = 0.008, ANCOVA). The corresponding values in controls were 14.6 +/- 3.8, 13.7 +/- 5.7 and 11.6 +/- 4.4 (p = 0.08). Correspondingly, in the diabetic subjects, the AVR values were 0.71 +/- 0.07, 0.75 +/- 0.07 and 0.73 +/- 0.1 (p = NS, ANOVA) and in the control subjects they were 0.8 +/- 0.14, 0.81 +/- 0.12 and 0.76 +/- 0.09 (p = NS, ANOVA). Multiple linear regression analysis (best model chi2 = 18.2, R2 = 0.10, p < 0.001) showed that AVR was related to diastolic blood pressure (t = -3.7, p < 0.001) and GFR (t = -2.2, p = 0.03). There was no relation between the AVR and plasma homocysteine levels. CONCLUSION In the present study of recently diagnosed type 2 diabetic and non-diabetic subjects, MTHFR gene polymorphism (C677T mutation) slightly affected the plasma homocysteine level but did not alter the arterio-venous ratio.
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Affiliation(s)
- V Wirta
- Department of Clinical Chemistry, Centre for Laboratory Medicine, Tampere University Hospital, Finland
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Rantalaiho V, Lehto P, Salonen T. [Blue lips]. Duodecim 2002; 115:2117,2119. [PMID: 11958167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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23
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Malin R, Laine S, Rantalaiho V, Wirta O, Pasternack A, Jokela H, Alho H, Koivula T, Lehtimäki T. Lipid peroxidation is increased in paraoxonase L55 homozygotes compared with M-allele carriers. Free Radic Res 2001; 34:477-84. [PMID: 11378531 DOI: 10.1080/10715760100300421] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Human serum paraoxonase (PON) is an antioxidative enzyme, which circulates on high-density lipoproteins and appears to use oxidized phospholipids as physiological substrates. PON M/L55 substitution changes the ability of PON to prevent lipid oxidation. Urinary 8-iso-PGF(2alpha) (one of F2 -isoprostanes) may represent a non-invasive in vivo index of free radical generation and we propose that PON might influence the biosynthesis of 8-iso-PGF(2alpha) in the vasculature. We studied the urinary excretion of 8-iso-PGF(2alpha) and related it to PON M/L55 genotypes in patients with type 2 diabetes mellitus (n = 55) and non-diabetic control subjects (n = 55). Urinary 8-iso-PGF(2alpha) was determined by competitive ELISA and the PON genotype by a PCR based restriction enzyme digestion method. LL homozygotes were compared to M-allele carriers (ML heterozygotes and MM homozygotes). The urinary excretion of 8-iso-PGF(2alpha) among non-diabetic non-smoking LL homozygotes was 3995.5 +/- 3352.8 ng/24-hour and among M-allele carriers 1689.8 +/- 1051.3 ng/24-hour (p = 0.017, ANCOVA; gender, hypertension, total cholesterol, triglycerides and LDL cholesterol as covariates). The excretion of 8-iso-PGF(2alpha), was increased in type 2 diabetes mellitus compared to non-diabetic control subjects. PON may thus protect against oxidative stress by destroying some biologically active lipids. Excretion of 8-iso-PGF(2alpha) is increased in type 2 diabetes, which may reflect oxidant injury.
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Affiliation(s)
- R Malin
- Tampere University Hospital, Centre for Laboratory Medicine, Department of Clinical Chemistry and University of Tampere, Medical School; P.O. Box 2000, 33521 Tampere, Finland
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24
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Harmoinen AP, Kouri TT, Wirta OR, Lehtimäki TJ, Rantalaiho V, Turjanmaa VM, Pasternack AI. Evaluation of plasma cystatin C as a marker for glomerular filtration rate in patients with type 2 diabetes. Clin Nephrol 1999; 52:363-70. [PMID: 10604644] [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: 02/14/2023] Open
Abstract
AIM To evaluate plasma cystatin C as a marker of the glomerular filtration rate in patients with type 2 diabetes and their age and sex-matched controls. MATERIALS AND METHODS Forty-seven patients with one decade of type 2 diabetes and 51 non-diabetic control subjects were studied. Plasma cystatin C was measured by particle-enhanced turbidimetric immunoassay in a new application for the Hitachi 704 analyzer. For comparison, plasma creatinine and creatinine clearance were measured. The plasma clearance of 51Cr-EDTA by the single injection method was utilized as reference. RESULTS In patients with type 2 diabetes the correlation coefficient between plasma cystatin C and the plasma clearance of 51Cr-EDTA was 0.774 (Spearman's coefficient) and that between plasma creatinine and the plasma clearance of 51Cr-EDTA was 0.556 (p = 0.001 for the difference). The correlation between creatinine clearance and the plasma clearance of 51Cr-EDTA was 0.411. In receiver operating characteristic (ROC) curve analysis the diagnostic accuracy of plasma cystatin C was significantly better than that of plasma creatinine (p = 0.047) or creatinine clearance (p = 0.001). The best diagnostic efficiency (98%) for cystatin C was obtained when the cut-off limit was set at 1.32 mg/l. In the control group the correlation coefficients were: between cystatin C and the plasma clearance of 51Cr-EDTA 0.627, between creatinine and the plasma clearance of 51Cr-EDTA 0.466 and between creatinine clearance and the plasma clearance of 51Cr-EDTA 0.416. The area under the ROC plot curve of cystatin C was also greatest in the control group, but the diagnostic accuracy of cystatin C was marginally better than that of either plasma creatinine (p = 0.05) or creatinine clearance (p = 0.08). Among the control subjects various non-renal causes may have interfered with cystatin C concentrations reducing the correlations. CONCLUSIONS Cystatin C measurement is a more sensitive and specific test for GFR in patients with type 2 diabetes than plasma creatinine or its clearance, when GFR is normal or only slightly reduced. If an elevated cystatin C concentration is found, non-renal factors have to be excluded. The turbidimetric application described here can easily be applied for most clinical chemistry analyzers and is therefore useful in daily clinical practice.
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Affiliation(s)
- A P Harmoinen
- Department of Clinical Chemistry, Tampere University Hospital, Finland
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25
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Malin R, Rantalaiho V, Huang XH, Wirta O, Pasternack A, Leinonen JS, Alho H, Jokela H, Koivula T, Tanaka T, Okada K, Ochi H, Toyokuni S, Lehtimäki T. Association between M/L55-polymorphism of paraoxonase enzyme and oxidative DNA damage in patients with type 2 diabetes mellitus and in control subjects. Hum Genet 1999; 105:179-80. [PMID: 10480377 DOI: 10.1007/s004399900074] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [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: 11/29/2022]
Abstract
The paraoxonase enzyme (PON) gene polymorphism causes a change of methionine (M-allele) to leucine (L-allele). PON may reduce low density lipoprotein oxidation and prevent atherosclerosis. Urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) is a sensitive index of oxidative DNA damage. We have studied the association between the PON genotypes and the urinary excretion of 8-OHdG. The study population consisted of 93 Finnish type 2 diabetes patients and 106 non-diabetic control subjects. The 24-h excretion of 8-OHdG was significantly higher in diabetic patients than in control subjects (P < 0.001). In control subjects, the ratio of the 8-OHdG/glomerular filtration rate increased in order of genotype from MM to ML to LL (P < 0.0412). These results suggest that lipid peroxidation may have an effect on DNA oxidation.
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Affiliation(s)
- R Malin
- Department of Clinical Chemistry, Tampere University Hospital, Finland
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26
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Malin R, Rantalaiho V, Huang XH, Wirta O, Pasternack A, Leinonen J, Alho H, Jokela H, Koivula T, Tanaka T, Okada K, Ochi H, Toyokuni S, Lehtimäki T. Association between M/L55-polymorphism of paraoxonase enzyme and oxidative DNA damage in patients with type 2 diabetes mellitus and in control subjects. Hum Genet 1999. [DOI: 10.1007/s004390051085] [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: 10/28/2022]
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27
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Rauhala A, Granroth G, Rantalaiho V. [Kikuchi's lymphadenitis--a new disease in Finland?]. Duodecim 1998; 111:2165-9. [PMID: 9841177] [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] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- A Rauhala
- Vaasan keskussairaala, Hietalahdenkatu, Vaasa
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28
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Huang XH, Rantalaiho V, Wirta O, Pasternack A, Koivula T, Hiltunen TP, Nikkari T, Lehtimäki T. Angiotensin-converting enzyme gene polymorphism is associated with coronary heart disease in non-insulin-dependent diabetic patients evaluated for 9 years. Metabolism 1998; 47:1258-62. [PMID: 9781631 DOI: 10.1016/s0026-0495(98)90333-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The insertion/deletion (I/D) polymorphism of the human angiotensin-converting enzyme (ACE) gene is a major determinant of circulating ACE levels. Recent studies have found the ACE D allele to be associated with an increased risk for coronary heart disease (CHD) in diabetic and nondiabetic subjects. This association has not been evaluated in prospective studies. We therefore studied the relationship between ACE gene I/D polymorphism and CHD in patients with non-insulin-dependent diabetes mellitus (NIDDM) evaluated for 9 years. The I/D polymorphism was determined by polymerase chain reaction (PCR). Overestimation of the frequency of the DD genotype was eliminated by insertion-specific primers and inclusion of 5% dimethylsulfoxide (DMSO). Eighty-three patients were evaluated for a mean period of 9.1 years (range, 7.4 to 10.5). Among them, 64 patients showed no CHD at entry. During the follow-up period, 21 patients (37.5%) developed CHD. The systolic blood pressure (P = .046), fasting blood glucose (P < .01), and prevalence of hypertension (P < .001) increased, while high-density lipoprotein (HDL) cholesterol (P < .001) decreased. Patients who developed CHD were older than those who did not; the mean age was 59.3 and 53.2 years, respectively (P = .003). The prevalence of albuminuria at follow-up examination was higher in CHD subjects versus non-CHD subjects (61.9% v 20.9%, P = .012). The D allele of the ACE gene was significantly more frequent in subjects with CHD versus those without CHD in both follow-up (P = .028, chi2 test) and cross-sectional (P = .033, chi2 test) settings. No difference could be detected between the three genotypes in age, body mass index (BMI), blood pressure, or plasma lipid levels. In our logistic regression analysis, the best model selected the DD genotype (P = .0105) and age (P = .0407) as significant risk factors for CHD. This model classified 89% of the subjects correctly. In conclusion, this 9-year prospective study supports the hypothesis that the ACE I/D polymorphism is an important and independent risk factor for CHD in patients with NIDDM.
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Affiliation(s)
- X H Huang
- Department of Clinical Chemistry, Tampere University Hospital, Finland
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29
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Leinonen J, Rantalaiho V, Lehtimäki T, Koivula T, Wirta O, Pasternack A, Alho H. The association between the total antioxidant potential of plasma and the presence of coronary heart disease and renal dysfunction in patients with NIDDM. Free Radic Res 1998; 29:273-81. [PMID: 9860042 DOI: 10.1080/10715769800300311] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Oxidative stress may be an important pathogenetic factor in the development of diabetic vascular complications. The total antioxidative potential of plasma reflects the ability of an individual to resist oxidative stress. We measured the plasma total peroxyl radical-trapping potential (TRAP) and the concentrations of four plasma chain-breaking antioxidants in 81 patients with non-insulin-dependent diabetes mellitus (NIDDM) nine years after diagnosis and in 102 well-matched non-diabetic control subjects. The association between the total antioxidative potential and the presence of coronary heart disease (CHD) and diabetic kidney disease were also studied. There were no significant differences in plasma TRAP between NIDDM patients and control subjects (1250+/-199 vs. 1224+/-198 microM). Nor were there any significant differences in the concentrations of plasma uric acid, ascorbic acid, alpha-tocopherol, and protein thiols between NIDDM patients and control subjects. Patients with a low glomerular filtration rate and/or high urinary albumin excretion had elevated plasma uric acid. Plasma TRAP was not, however, associated with renal dysfunction. The plasma of NIDDM patients with CHD had a significantly higher value of unidentified antioxidative potential than that of patients without CHD. This relation was strongly dependent upon smoking. In conclusion, these data demonstrate that there are no major defects in the antioxidative potential of plasma caused by NIDDM per se. CHD and diabetic renal dysfunction were not associated with changes in plasma TRAP.
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Affiliation(s)
- J Leinonen
- University of Tampere, Department of Clinical Chemistry, Tampere University Hospital, Finland.
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30
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Malin R, Huang XH, Wirta O, Rantalaiho V, Pasternack A, Jokela H, Koivula T, Lehtimäki T. The Met54Leu polymorphism of paraoxonase (PON) enzyme gene is not a genetic risk factor for non-insulin-dependent diabetes mellitus in Finns. Clin Genet 1998; 54:254-5. [PMID: 9788735 DOI: 10.1111/j.1399-0004.1998.tb04298.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Huang XH, Rantalaiho V, Wirta O, Pasternack A, Hiltunen TP, Koivula T, Malminiemi K, Nikkari T, Lehtimäki T. Angiotensin-converting enzyme insertion/deletion polymorphism and diabetic albuminuria in patients with NIDDM followed Up for 9 years. Nephron Clin Pract 1998; 80:17-24. [PMID: 9730698 DOI: 10.1159/000045120] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Nephropathy is a major cause of premature morbidity and mortality in patients with non-insulin-dependent diabetes mellitus (NIDDM). The insertion/deletion (I/D) polymorphism of angiotensin-converting enzyme (ACE) is a genetic determinant of plasma ACE levels. Recent studies have found I/D polymorphism of the ACE gene to be associated with nephropathy in NIDDM. This association has not been evaluated in prospective studies. We, therefore, studied the relationship between ACE gene I/D polymorphism and diabetic albuminuria and glomerular filtration rate (GFR) in 83 NIDDM patients followed up for 9 years. At baseline, 29% (24 of 83) of the diabetic patients had an increased (>30 mg/24 h) urinary albumin excretion rate (UAER) and the prevalence of albuminuria at the 9-year examination was 35% (29 of 83). During the follow-up period, systolic blood pressure (p = 0.044), prevalence of hypertension (p < 0.01), and fasting blood glucose levels (p < 0.01) increased, while high-density lipoprotein cholesterol (p < 0.01) decreased. The declines of GFR during the follow-up period were 8.5, 14.1, and 16.3% within genotype groups of II, ID, and DD, respectively (p values for decreases: NS for II, <0.001 for ID, and <0.001 for DD). Patients with the DD genotype tended to have a steeper decrease of GFR, but the change was not statistically significant between the genotype groups. The increases of UAER during the follow-up period were 35.1, 8.3, and 122.4% within genotype groups of II, ID, and DD, respectively, but p values for all increases were not significant. Parallel to GFR, patients with the DD genotype tended to have a steeper increase of UAER, but the change was not statistically significant between the genotype groups. There were no differences in the ACE genotype distribution and allele frequencies between the patients with or without albuminuria either at follow-up or in cross-sectional settings. In conclusion, this 9-year follow-up study does not support the hypothesis that the ACE I/D polymorphism is a major genetic marker of diabetic nephropathy in NIDDM patients.
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Affiliation(s)
- X H Huang
- Department of Clinical Chemistry, Tampere University Hospital, Tampere, Finland
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32
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Wirta V, Huang XH, Wirta O, Rantalaiho V, Pasternack A, Jokela H, Koivula T, Lehtimäki T. Mutation C677T of methylenetetrahydrofolate reductase gene is not associated with coronary artery disease, but possibly with albuminuria, in type 2 diabetic patients. Clin Chem Lab Med 1998; 36:625-8. [PMID: 9806473 DOI: 10.1515/cclm.1998.109] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The missense mutation in the 677th nucleotide (C677T) of methylenetetrahydrofolate reductase gene causes substitution of valine (V) for alanine (A) resulting in three genotypes VV, VA and AA. The VV genotype causes hyperhomocysteinemia and may be a risk factor for coronary artery disease. We determined genotypes by polymerase chain reaction and subsequent restriction fragment length analysis and compared them in 84 patients with type 2 diabetes and in 115 non-diabetic subjects with and without coronary disease. Fractional urinary excretion rate of albumin was assessed by nephelometry. The VV, VA, and AA frequencies in the diabetic and in the control groups were 0.095, 0.357, 0.548 and 0.061, 0.417, 0.522, respectively (p = NS, diabetic vs. controls, chi2 test). Genotype frequencies did not differ in either diabetic or control subjects between those with or those without coronary disease (chi2 test). The fractional urinary excretion rate of albumin (mean +/-SD) in diabetic patients with the VV genotype i.e. 1.59 +/-0.71 was lower (Kruskall-Wallis test p = 0.002) than in the other genotypes i.e. VA 5.98 +/-9.75 and AA 3.75 +/-4.77, respectively (post-hoc Mann-Whitney test VV vs. VA p = 0.005 and VV vs. AA p = 0.054, respectively). We found that in patients with type 2 diabetes the methylenetetrahydrofolate reductase VV genotype was associated with a low urinary albumin excretion but not with coronary artery disease or diabetes per se.
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Affiliation(s)
- V Wirta
- Department of Medical Biochemistry, University of Tampere Medical School, Finland
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33
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Leinonen JS, Rantalaiho V, Laippala P, Wirta O, Pasternack A, Alho H, Jaakkola O, Ylä-Herttuala S, Koivula T, Lehtimäki T. The level of autoantibodies against oxidized LDL is not associated with the presence of coronary heart disease or diabetic kidney disease in patients with non-insulin-dependent diabetes mellitus. Free Radic Res 1998; 29:137-41. [PMID: 9790515] [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: 02/09/2023]
Abstract
Oxidation of low-density lipoprotein (LDL) may be an important factor in the development of diabetic macrovascular and renal complications. The level of autoantibodies against oxidized LDL (oxLDL-Ab) can be used as an index of LDL oxidation in vivo. The purpose of this study was to investigate the association between the level of oxLDL-Ab and the presence of coronary heart disease and renal dysfunction in patients with non-insulin-dependent diabetes mellitus (NIDDM). We determined the plasma levels of oxLDL-Ab in 46 NIDDM patients and 48 well matched nondiabetic control subjects. NIDDM patients had a moderately higher level of oxLDL-Ab than control subjects (0.083 +/- 0.051 vs. 0.062 +/- 0.045, p = 0.04). However, there was no difference in the level of oxLDL-Ab between subjects with and without coronary heart disease, and the level of oxLDL-Ab was not associated with indices of glomerular filtration rate or urinary albumin excretion.
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Affiliation(s)
- J S Leinonen
- Medical School, University of Tampere, and Department of Clinical Chemistry, Tampere University Hospital, Finland.
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34
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Leinonen JS, Rantalaiho V, Solakivi T, Koivula T, Wirta O, Pasternack A, Alho H, Lehtimäki T. Susceptibility of LDL to oxidation is not associated with the presence of coronary heart disease or renal dysfunction in NIDDM patients. Clin Chim Acta 1998; 275:163-74. [PMID: 9721074 DOI: 10.1016/s0009-8981(98)00083-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Coronary heart disease (CHD) is the leading cause of death among patients with non-insulin-dependent diabetes mellitus (NIDDM) and the oxidation of low-density lipoprotein (LDL) may be an essential factor in the development of atherosclerotic lesions. Therefore, we studied the in vitro susceptibility of LDL to copper-induced oxidation in 72 NIDDM patients and 94 well-matched non-diabetic control subjects. There was no significant difference in the lagtime of LDL oxidation between NIDDM patients and control subjects (68.1+/-8.8 vs. 66.7+/-9.2 min, respectively, P=0.29). The plasma alpha-tocopherol/LDL-ratio was the most significant determinant of the lagtime in multiple regression analysis. High level of serum triglycerides was associated with decreased lagtime in control subjects, but not in NIDDM patients. Blood glucose balance was not associated with LDL susceptibility to oxidation in NIDDM patients. Subjects with CHD did not have LDL susceptibility to oxidation different from that of subjects without CHD in either of the study groups. Urinary albumin excretion or glomerular filtration rate was not associated with the lagtime of LDL oxidation in NIDDM patients. In conclusion, these data suggest that diabetes and hyperglycemia per se do not affect the susceptibility of LDL to oxidation. The presence of CHD or renal dysfunction were not associated with LDL susceptibility to oxidation.
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Affiliation(s)
- J S Leinonen
- Medical School, University of Tampere, Tampere University Hospital, Finland.
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35
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Huang XH, Rantalaiho V, Wirta O, Pasternack A, Koivula T, Hiltunen T, Nikkari T, Lehtimäki T. Relationship of the angiotensin-converting enzyme gene polymorphism to glucose intolerance, insulin resistance, and hypertension in NIDDM. Hum Genet 1998; 102:372-8. [PMID: 9544854 DOI: 10.1007/s004390050707] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The deletion (D) allele of the angiotensin-converting enzyme (ACE) gene insertion/deletion (I/D) polymorphism has been shown to be associated with cardiovascular and renal diseases in diabetes mellitus, but the mechanism underlying this association is not known. In addition, recent studies of the effect of the ACE gene on blood pressure have yielded conflicting results. Therefore, we studied the association of the ACE gene I/D polymorphism with glucose intolerance and insulin resistance, and the contribution of this locus to genetic susceptibility to hypertension in non-insulin-dependent diabetic mellitus (NIDDM). We analysed the ACE genotype in 84 unrelated NIDDM patients with a known disease duration of less than 1 year and in 115 age- and sex-matched controls. The I/D polymorphism was determined by the polymerase chain reaction. There were no differences in ACE genotype distribution and allele frequencies between patients with NIDDM and nondiabetic controls. The frequencies of the D and I alleles in both groups were identical, viz., 0.65 and 0.35, respectively. The NIDDM patients with the DD genotype had significantly higher blood glucose levels in the oral glucose tolerance test than those with the other genotypes; the incremental glucose area under the curve in the order of II, ID, and DD was 7.2+/-2.4, 9.2+/-4.0, and 10.7+/-2.7 mmol/l x h (II vs ID vs DD, P=0.0066 by ANOVA). No significant difference was found between the ACE genotype and serum insulin values. Similarly, there were no differences in body mass index, blood pressure, or serum lipids between the three genotypes. Among the non-diabetic controls, there was no statistically significant association of the I/D polymorphism with serum lipids, blood glucose levels, serum insulin concentrations, or blood pressure values. In conclusion, NIDDM patients with the DD genotype have higher blood glucose levels and are more glucose intolerant; this may help to explain the reported association between the D allele and vascular complications in NIDDM.
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Affiliation(s)
- X H Huang
- Department of Clinical Chemistry, Tampere University Hospital, Finland
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36
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Leinonen J, Lehtimäki T, Toyokuni S, Okada K, Tanaka T, Hiai H, Ochi H, Laippala P, Rantalaiho V, Wirta O, Pasternack A, Alho H. New biomarker evidence of oxidative DNA damage in patients with non-insulin-dependent diabetes mellitus. FEBS Lett 1997; 417:150-2. [PMID: 9395094 DOI: 10.1016/s0014-5793(97)01273-8] [Citation(s) in RCA: 206] [Impact Index Per Article: 7.6] [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: 02/05/2023]
Abstract
Urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) has been reported to serve as a sensitive biomarker of oxidative DNA damage and also of oxidative stress. We have investigated oxidative DNA damage in patients with non-insulin-dependent diabetes mellitus (NIDDM) by urinary 8-OHdG assessments. We determined the total urinary excretion of 8-OHdG from 24 h urine samples of 81 NIDDM patients 9 years after the initial diagnosis and of 100 non-diabetic control subjects matched for age and gender. The total 24 h urinary excretion of 8-OHdG was markedly higher in NIDDM patients than in control subjects (68.2 +/- 39.4 microg vs. 49.6 +/- 37.7 microg, P = 0.001). High glycosylated hemoglobin was associated with a high level of urinary 8-OHdG. The increased excretion of urinary 8-OHdG is seen as indicating an increased systemic level of oxidative DNA damage in NIDDM patients.
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Affiliation(s)
- J Leinonen
- Laboratory of Neurobiology, Medical School, University of Tampere, Finland
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37
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Leinonen J, Rantalaiho V, Wirta O, Pasternack A, Solakivi T, Jaakkola O, Koivula T, Alho H, Lehtimäki T. 4.P.75 Autoantibodies against oxidized LDL in NIDDM patients. Atherosclerosis 1997. [DOI: 10.1016/s0021-9150(97)89601-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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38
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Huang XH, Koivula T, Ilveskoski E, Karhunen PJ, Rantalaiho V, Wirta O, Pasternack A, Lehtimäki T. Fast 5-hour determination of angiotensin-converting enzyme genotypes from blood by SDS-PAGE using PhastSystem. Clin Chim Acta 1997; 264:57-64. [PMID: 9267703 DOI: 10.1016/s0009-8981(97)00073-9] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Polymorphism in the angiotensin-converting enzyme (ACE) gene has been shown to correlate with circulating ACE concentrations in plasma, and also to be an independent risk factor in the development of many cardiovascular diseases. However, methods available today for ACE genotyping are still laborious and time-consuming. Here we report a sensitive, simple and non-isotopic procedure with commercially available gels for the identification of ACE insertion/ deletion polymorphism. This technique includes rapid extraction of the DNA by the QIAamp Blood Kit prior to polymerase chain reaction, followed by sodium dodecylsulphate polyacrylamide gel electrophoresis using the PhastSystem (Pharmacia). The procedure can be accomplished in five-hours from drawing the blood samples to the final result.
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Affiliation(s)
- X H Huang
- Department of Clinical Chemistry, Tampere University Hospital, Finland
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39
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Putkonen M, Rauhala A, Virkki T, Rantalaiho V. [Thrombosis of the internal jugular vein as a cause of neck pain]. Duodecim 1995; 111:447-451. [PMID: 8674448] [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] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- M Putkonen
- Vaasan keskussairaalan sisätautien yksikkö
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