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Kortelainen S, Käyrä M, Hurme S, Paltta J, Pirilä L, Huhtakangas J. Systemic sclerosis: changes in the incidence rates in the Finnish population during the years 1999-2018. Scand J Rheumatol 2024; 53:29-35. [PMID: 37439450 DOI: 10.1080/03009742.2023.2217620] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 05/22/2023] [Indexed: 07/14/2023]
Abstract
OBJECTIVE The aim of our study was to examine changes in the incidence of systemic sclerosis (SSc) in Finland using two different classification criteria. METHOD Medical records of patients who had been registered with ICD-10 code M34 from 1999 to 2018 in two university hospitals were reviewed retrospectively. This period was divided into 5 year periods: 1999-2003, 2004-2008, 2009-2013, and 2014-2018. Using American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) 2013 criteria and clinical findings, we reclassified patients into four groups: diffuse SSc, limited SSc, sine SSc, or early SSc. In the same population, we also investigated whether the ACR 1980 criteria were fulfilled. RESULTS In 1999-2018, 246 new patients with SSc and 45 patients with early SSc were identified using ACR/EULAR 2013 criteria. Of these patients, 70 fulfilled the ACR 1980 criteria. Using ACR/EULAR 2013 criteria, the increase in new diagnoses was statistically significant when comparing the fourth period with the first period (p = 0.0012). The increase was due to a rise in limited SSc. Mean annual incidence rates in these groups were 0.9, 1.2, 1.9, and 2.8 per 100 000 inhabitants ≥ 16 years old. An increasing trend was also seen when using ACR 1980 criteria, but this was not statistically significant. CONCLUSION The incidence of SSc increased during the period between 1999-2003 and 2014-2018 using ACR/EULAR 2013, but not using ACR 1980 criteria. The increase was detected within a limited SSc subclass, owing to more sensitive classification criteria.
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Affiliation(s)
- S Kortelainen
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
- Department of Medicine, University of Turku, Turku, Finland
| | - M Käyrä
- Division of Rheumatology, Department of Internal Medicine, Oulu University Hospital, Oulu, Finland
| | - S Hurme
- Department of Biostatistics, University of Turku, Turku, Finland
| | - J Paltta
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
- Department of Medicine, University of Turku, Turku, Finland
| | - L Pirilä
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
- Department of Medicine, University of Turku, Turku, Finland
| | - J Huhtakangas
- Division of Rheumatology, Department of Internal Medicine, Oulu University Hospital, Oulu, Finland
- Cancer Research and Translational Medicine Research Unit, Medical Research Center Oulu, University of Oulu, Oulu, Finland
- Division of Rheumatology, Department of Internal Medicine, Kuopio University Hospital, Kuopio, Finland
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2
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Mali M, Pirilä L, Perander L, Gardberg M, Jokela M. Identical twins with statin-associated anti-3-hydroxy-3-methylglutaryl-coenzyme A reductase autoantibody-positive autoimmune myopathy. Scand J Rheumatol 2024; 53:81-82. [PMID: 38090763 DOI: 10.1080/03009742.2023.2289729] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 11/28/2023] [Indexed: 12/29/2023]
Affiliation(s)
- M Mali
- Centre for Rheumatology and Clinical Immunology, Turku University Hospital, Turku, Finland
- University of Turku, Turku, Finland
| | - L Pirilä
- Centre for Rheumatology and Clinical Immunology, Turku University Hospital, Turku, Finland
- University of Turku, Turku, Finland
| | - L Perander
- Centre for Rheumatology and Clinical Immunology, Turku University Hospital, Turku, Finland
- University of Turku, Turku, Finland
- Åland's Health Care, Mariehamn, Finland
| | - M Gardberg
- TYKS Laboratories, Department of Pathology, Turku University Hospital, Turku, Finland
- Institute of Biomedicine, University of Turku, Turku, Finland
| | - M Jokela
- Neurocenter, Turku University Hospital, Turku, Finland
- Department of Neurology, University of Turku, Turku, Finland
- Neuromuscular Center, Tampere University Hospital, Tampere, Finland
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3
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Paltta J, Suuronen S, Pirilä L, Palomäki A. Differential diagnostics of polymyalgia rheumatica in a university hospital in Finland. Scand J Rheumatol 2023; 52:689-695. [PMID: 37335188 DOI: 10.1080/03009742.2023.2215044] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 05/15/2023] [Indexed: 06/21/2023]
Abstract
OBJECTIVES Diagnosing polymyalgia rheumatica (PMR) can be difficult as many conditions present with similar symptoms and findings. This study aimed to analyse how often the diagnosis of PMR changes during follow-up in a university hospital setting and to determine the most common clinical conditions initially misdiagnosed as PMR. METHOD All patients with a new primary diagnosis of PMR on at least one visit during the years 2016-2019 were identified from the hospital discharge register of Turku University Hospital, Finland. A diagnosis of PMR was confirmed if the patient met at least one of the five classification criteria, complete clinical follow-up (median 34 months) was compatible with PMR, and no other diagnosis better explained their condition. RESULTS Of the patients initially diagnosed with PMR, 65.5% were considered to have PMR after further evaluation and clinical follow-up. The most common conditions initially diagnosed as PMR were inflammatory arthritides (34.9%), degenerative or stress-related musculoskeletal disorders (13.2%), infection (9.3%), malignancy (9.3%), giant cell vasculitis (6.2%) and other vasculitis (6.2%), and a wide range of other less common diseases. The diagnosis of PMR remained in 81.3% of patients who fulfilled the 2012 American College of Rheumatology/European League Against Rheumatism PMR classification criteria and in 45.5% of patients who did not. CONCLUSIONS Diagnosing PMR is challenging, even in a university hospital. One-third of the initial diagnoses of PMR changed during further evaluation and follow-up. There is a substantial risk of misdiagnosis, especially in patients with atypical presentation, and the differential diagnoses of PMR must be considered carefully.
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Affiliation(s)
- J Paltta
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
- Department of Medicine, University of Turku, Turku, Finland
| | - S Suuronen
- Department of Medicine, University of Turku, Turku, Finland
| | - L Pirilä
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
- Department of Medicine, University of Turku, Turku, Finland
| | - A Palomäki
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
- Department of Medicine, University of Turku, Turku, Finland
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Koskivirta I, Ruotsalainen J, Kurki S, Lakkakorpi P, Salminen-Mankonen H, Pirilä L, Harvima R, Palomäki A. Real-world registry-based study on apremilast use in psoriasis and psoriatic arthritis in Finland. Scand J Rheumatol 2023; 52:549-555. [PMID: 36644971 DOI: 10.1080/03009742.2022.2151109] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 11/21/2022] [Indexed: 01/17/2023]
Abstract
OBJECTIVES This study assessed the position of apremilast in the treatment pathway of psoriasis (PsO) and psoriatic arthritis (PsA) in Finnish clinical practice, compared the characteristics of apremilast and biologic therapy users, evaluated persistence with apremilast and identified factors influencing treatment discontinuation. METHOD This retrospective study used data from Finnish national health registries. The target group was identified based on L40* diagnosis and medication records between 2015 and 2018. Treatment persistence was analysed using Kaplan-Meier curves and Cox regression. RESULTS Of eligible patients (PsO 31 202; PsA 12 386), 1% (n = 471) used apremilast and 10% (n = 4214) biologics, apremilast users being older (mean age 55.9 vs 52.4 years, p < 0.001) with a higher Charlson comorbidity score (0.71 vs 0.54, p < 0.001). Most patients switched to apremilast from conventional synthetic therapy (PsO 75%; PsA 76%); 47% of patients remained on apremilast during the observation period (PsO 58%; PsA 42%). Most patients discontinuing apremilast switched to biologics (PsO 51%; PsA 51%). Apremilast persistence increased with age (p = 0.042) and was higher in PsO than in PsA (median 14 vs 11 months; p = 0.005). Compared to prior conventional synthetic therapy, prior biologic therapy decreased persistence (hazard ratio for discontinuation 2.15, 95% confidence interval 1.42-3.25). CONCLUSION In Finnish clinical practice, apremilast is mainly used between conventional synthetic therapy and biologics, with at least as high treatment persistence as reported in previous studies. Apremilast users were older with higher comorbidity burden than biologics users.
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Affiliation(s)
- I Koskivirta
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
- Department of Medicine, University of Turku, Turku, Finland
| | - J Ruotsalainen
- Real-world Evidence and Research Services, Oriola Finland Ltd, Espoo, Finland
| | - S Kurki
- Real-world Evidence and Research Services, Oriola Finland Ltd, Espoo, Finland
| | | | - H Salminen-Mankonen
- Real-world Evidence and Research Services, Oriola Finland Ltd, Espoo, Finland
| | - L Pirilä
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
- Department of Medicine, University of Turku, Turku, Finland
| | - R Harvima
- Departments of Dermatology, University of Eastern Finland and Kuopio University Hospital, Kuopio, Finland
| | - A Palomäki
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
- Department of Medicine, University of Turku, Turku, Finland
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Kuusalo L, Venäläinen MS, Kirjala H, Saranpää S, Elo LL, Pirilä L. Development of prediction model for alanine transaminase elevations during the first 6 months of conventional synthetic DMARD treatment. Sci Rep 2023; 13:12943. [PMID: 37558753 PMCID: PMC10412531 DOI: 10.1038/s41598-023-39694-2] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 07/29/2023] [Indexed: 08/11/2023] Open
Abstract
Frequent laboratory monitoring is recommended for early identification of toxicity when initiating conventional synthetic disease-modifying antirheumatic drugs (csDMARDs). We aimed at developing a risk prediction model to individualize laboratory testing at csDMARD initiation. We identified inflammatory joint disease patients (N = 1196) initiating a csDMARD in Turku University Hospital 2013-2019. Baseline and follow-up safety monitoring results were drawn from electronic health records. For rheumatoid arthritis patients, diagnoses and csDMARD initiation/cessation dates were manually confirmed. Primary endpoint was alanine transaminase (ALT) elevation of more than twice the upper limit of normal (ULN) within 6 months after treatment initiation. Computational models for predicting incident ALT elevations were developed using Lasso Cox proportional hazards regression with stable iterative variable selection (SIVS) and were internally validated against a randomly selected test cohort (1/3 of the data) that was not used for training the models. Primary endpoint was reached in 82 patients (6.9%). Among baseline variables, Lasso model with SIVS predicted subsequent ALT elevations of > 2 × ULN using higher ALT, csDMARD other than methotrexate or sulfasalazine and psoriatic arthritis diagnosis as important predictors, with a concordance index of 0.71 in the test cohort. Respectively, at first follow-up, in addition to baseline ALT and psoriatic arthritis diagnosis, also ALT change from baseline was identified as an important predictor resulting in a test concordance index of 0.72. Our computational model predicts ALT elevations after the first follow-up test with good accuracy and can help in optimizing individual testing frequency.
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Affiliation(s)
- Laura Kuusalo
- Division of Medicine, Centre for Rheumatology and Clinical Immunology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-6, P.O. Box 52, 20521, Turku, Finland.
| | - Mikko S Venäläinen
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520, Turku, Finland
- Department of Medical Physics, Turku University Hospital, Turku, Finland
| | - Heidi Kirjala
- Division of Medicine, Centre for Rheumatology and Clinical Immunology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-6, P.O. Box 52, 20521, Turku, Finland
| | - Sofia Saranpää
- Division of Medicine, Centre for Rheumatology and Clinical Immunology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-6, P.O. Box 52, 20521, Turku, Finland
| | - Laura L Elo
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Tykistökatu 6, 20520, Turku, Finland
- Institute of Biomedicine, University of Turku, Turku, Finland
- InFLAMES Research Flagship Center, University of Turku, Turku, Finland
| | - Laura Pirilä
- Division of Medicine, Centre for Rheumatology and Clinical Immunology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-6, P.O. Box 52, 20521, Turku, Finland
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Ørnbjerg LM, Linde L, Georgiadis S, Rasmussen SH, Lindström U, Askling J, Michelsen B, Giuseppe DD, Wallman JK, Pavelka K, Závada J, Nissen MJ, Jones GT, Relas H, Pirilä L, Tomšič M, Rotar Z, Geirsson AJ, Gudbjornsson B, Kristianslund EK, van der Horst-Bruinsma I, Loft AG, Laas K, Iannone F, Corrado A, Ciurea A, Santos MJ, Santos H, Codreanu C, Akkoc N, Gunduz OS, Glintborg B, Østergaard M, Hetland ML. Corrigendum to 'Predictors of ASDAS-CRP inactive disease in axial spondyloarthritis during treatment with TNF-inhibitors: data from the EuroSpA collaboration' [Seminars in Arthritis and Rheumatism 56 (2022) 1-13/152081]. Semin Arthritis Rheum 2023; 58:152141. [PMID: 36463635 DOI: 10.1016/j.semarthrit.2022.152141] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Lykke M Ørnbjerg
- Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark; DANBIO registry, Rigshospitalet, Glostrup, Denmark
| | - Louise Linde
- Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark; DANBIO registry, Rigshospitalet, Glostrup, Denmark.
| | - Stylianos Georgiadis
- Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark; DANBIO registry, Rigshospitalet, Glostrup, Denmark
| | - Simon H Rasmussen
- Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark
| | - Ulf Lindström
- Department of Rheumatology and Inflammation Research, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Johan Askling
- Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Brigitte Michelsen
- Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark; Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway; Division of Rheumatology, Department of Medicine, Hospital of Southern Norway Trust, Kristiansand, Norway
| | - Daniela Di Giuseppe
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Johan K Wallman
- Department of Clinical Sciences Lund, Rheumatology, Skåne University Hospital, Lund University, Lund, Sweden
| | - Karel Pavelka
- Institute of Rheumatology, Prague, Czech Republic; Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jakub Závada
- Institute of Rheumatology, Prague, Czech Republic; Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Michael J Nissen
- Department of Rheumatology, Geneva University Hospital, Geneva, Switzerland
| | - Gareth T Jones
- Aberdeen Centre for Arthritis and Musculoskeletal Health (Epidemiology Group), University of Aberdeen, Aberdeen, UK
| | - Heikki Relas
- Department of Rheumatology, Inflammation Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Laura Pirilä
- Center for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland; Department of Internal Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Matija Tomšič
- Department of Rheumatology, University Medical Centre Ljubljana, Ljubljana, Slovenia; Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Ziga Rotar
- Department of Rheumatology, University Medical Centre Ljubljana, Ljubljana, Slovenia; Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | | | - Bjorn Gudbjornsson
- Centre for Rheumatology Research, Landspitali, University Hospital, Reykjavik, Iceland; Faculty of Medicine, University of Iceland, Reykjavik, Iceland
| | | | | | - Anne Gitte Loft
- Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Karin Laas
- Department of Rheumatology, East-Tallinn Central Hospital, Tallinn, Estonia
| | | | - Addolorata Corrado
- Rheumatology Unit, Department of Medical and Surgical Sciences, University of Foggia, Italy
| | - Adrian Ciurea
- Department of Rheumatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Maria J Santos
- Serviço de Reumatologia, Hospital Garcia de Orta, Almada, Portugal; Reuma.pt, Sociedade Portuguesa de Reumatologia, Lisbon, Portugal
| | - Helena Santos
- Reuma.pt, Sociedade Portuguesa de Reumatologia, Lisbon, Portugal; Instituto Português de Reumatologia, Lisbon, Portugal; EpiDoc Unit, Nova Medical School, Lisbon, Portugal
| | - Catalin Codreanu
- Center for Rheumatic Diseases, University of Medicine and Pharmacy, Romanian Registry of Rheumatic Diseases, Bucharest, Romania
| | - Nurullah Akkoc
- Division of Rheumatology, Department of Medicine, Celal Bayar University Hospital, Manisa Turkey
| | - Ozgul S Gunduz
- Division of Rheumatology, Department of Medicine, Celal Bayar University Hospital, Manisa Turkey
| | - Bente Glintborg
- Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark; DANBIO registry, Rigshospitalet, Glostrup, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Østergaard
- Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Merete Lund Hetland
- Copenhagen Center for Arthritis Research (COPECARE), Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Paltta J, Heikkilä HK, Pirilä L, Eklund KK, Huhtakangas J, Isomäki P, Kaipiainen-Seppänen O, Kristiansson K, Havulinna AS, Sokka-Isler T, Palomäki A. The validity of rheumatoid arthritis diagnoses in Finnish biobanks. Scand J Rheumatol 2023; 52:1-9. [PMID: 34643165 DOI: 10.1080/03009742.2021.1967047] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE The aim of this study was to determine the validity of rheumatoid arthritis (RA) diagnoses in patients participating in Finnish biobanks. METHOD We reviewed the electronic medical records of 500 Finnish biobank participants: 125 patients with at least one visit with a diagnosis of seropositive RA, 125 patients with at least one visit with a diagnosis of seronegative RA, and 250 age- and gender-matched controls. The patients were chosen from five different biobank hospitals in Finland. A rheumatologist reviewed the medical records to assess whether each patients' diagnosis was correct. The diagnosis was compared with the diagnostic codes in the Finnish Care Register for Health Care (CRHC) and special reimbursement data of the Social Insurance Institution of Finland. RESULTS The positive predictive value (PPV) of CRHC diagnosis of RA (for seropositive and seronegative RA combined) was 0.82. For patients with a special reimbursement for anti-rheumatic medications for RA, the PPV was 0.89. The PPV was higher in patients with more than one visit. For one, two, five, and 10 visits, the PPV was 0.82, 0.85, 0.89, and 0.90, respectively, and for patients who also had the special reimbursement, the PPV was 0.89, 0.91, 0.93, and 0.94 for one, two, five, and 10 visits, respectively. In patients positive for anti-citrullinated protein antibodies, the PPV was 0.98. CONCLUSION These results demonstrate that the validity of RA diagnoses in Finnish biobanks was good and can be further improved by including data on special reimbursement for medication, number of visits, and serological data.
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Affiliation(s)
- J Paltta
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - H-K Heikkilä
- Centre for Rheumatic Diseases, Tampere University Hospital, Tampere, Finland
| | - L Pirilä
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital and University of Turku, Turku, Finland
| | - K K Eklund
- Department of Rheumatology, Helsinki University Hospital, University of Helsinki and Orton Orthopaedic Hospital, Helsinki, Finland
| | - J Huhtakangas
- Division of Rheumatology, Department of Internal Medicine, Oulu University Hospital and Medical Research Center Oulu, Oulu, Finland
| | - P Isomäki
- Centre for Rheumatic Diseases, Tampere University Hospital, Tampere, Finland.,Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | | | - K Kristiansson
- Department of Public Health Solutions, Finnish Institute for Health and Welfare (THL), Helsinki, Finland
| | - A S Havulinna
- Department of Public Health Solutions, Finnish Institute for Health and Welfare (THL), Helsinki, Finland.,Institute for Molecular Medicine Finland, FIMM, HiLIFE, University of Helsinki, Helsinki, Finland
| | - T Sokka-Isler
- Department of Medicine, Jyväskylä Central Hospital, Jyväskylä, Finland
| | - A Palomäki
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital and University of Turku, Turku, Finland.,Institute for Molecular Medicine Finland, FIMM, HiLIFE, University of Helsinki, Helsinki, Finland
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- FinnGen members are listed in the Supplementary material
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8
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Paltta J, Kortelainen S, Käyrä M, Pirilä L, Huhtakangas J, Palomäki A. The validity of systemic sclerosis diagnoses in two university hospitals in Finland. Scand J Rheumatol 2023; 52:84-87. [PMID: 35442148 DOI: 10.1080/03009742.2022.2056999] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE This study aimed to determine the validity of systemic sclerosis (SSc) diagnoses in Finnish university hospitals. METHOD Electronic medical records for 385 patients with a registered diagnosis of SSc (ICD-10 code M34) in two Finnish university hospitals from 2008 to 2018 were reviewed to assess whether each patient's diagnosis was correct. RESULTS The positive predictive value (PPV) of a diagnosis of SSc was 0.66 when fulfilment of the 2013 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) classification criteria for SSc was required; the PPV was 0.75 if patients meeting the 2001 LeRoy and Medsger classification criteria for early SSc were also included. When a diagnosis of SSc was made in a department of rheumatology, the PPV was 0.78, and 0.90 when including patients with early SSc. For the more specific diagnosis of limited cutaneous SSc (lcSSc), the PPV was 0.80, and 0.95 when including early SSc. For an lcSSc diagnosis made in rheumatology, the PPV was 0.81, and 0.97 with early SSc included. CONCLUSION These results demonstrate that in these two Finnish university hospitals, the diagnostic validity of a diagnosis of SSc was good if it was diagnosed in the department of rheumatology. For a more specific diagnosis of lcSSc, the most prevalent form of SSc in Finland, the validity was good even when registered in any department.
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Affiliation(s)
- J Paltta
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland.,Department of Medicine, University of Turku, Turku, Finland
| | - S Kortelainen
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
| | - M Käyrä
- Division of Rheumatology, Department of Internal Medicine, Oulu University Hospital, Oulu, Finland
| | - L Pirilä
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland.,Department of Medicine, University of Turku, Turku, Finland
| | - J Huhtakangas
- Division of Rheumatology, Department of Internal Medicine, Oulu University Hospital, Oulu, Finland.,Medical Research Centre Oulu, Oulu, Finland.,Division of Rheumatology, Department of Internal Medicine, Kuopio University Hospital, Kuopio, Finland
| | - A Palomäki
- Centre for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland.,Department of Medicine, University of Turku, Turku, Finland
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9
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Paltta J, Suuronen S, Pirilä L, Palomäki A. POS1383 DIFFERENTIAL DIAGNOSTICS OF POLYMYALGIA RHEUMATICA IN A UNIVERSITY HOSPITAL IN FINLAND. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundPolymyalgia rheumatica (PMR) is an inflammatory disease that causes muscle pain and morning stiffness, especially in the shoulders and hips. Diagnosing PMR can be difficult, as the diagnosis is mainly clinical without a definitive diagnostic test, and many symptoms and findings of PMR may also be present in other conditions. There is little recent data on differential diagnostics of PMR.ObjectivesThe aim of our study was to analyse patients diagnosed with polymyalgia rheumatica (PMR) in Turku University Hospital in Finland and determine how often a competing diagnosis better explaining the patients’ symptoms was found during further evaluation and clinical follow-up. We also aimed to find out what are the most common conditions initially misdiagnosed as PMR.MethodsAll patients with a new primary diagnosis of PMR (International Classification of Diseases – 10th revision [ICD-10] code M35.3) on at least one (in- or outpatient) visit during years 2016–2019 were identified from the hospital discharge register of Turku University hospital in Finland. We did a chart review of the patient charts including the full clinical follow-up period (median 34 months). We studied how often the primary diagnosis of PMR changed after further diagnostic evaluation or during follow-up.ResultsIn 125 (32.7%) of the 382 patients, the initial diagnosis of PMR changed during further diagnostic evaluation or follow-up. Most common diagnoses initially misdiagnosed as PMR were inflammatory arthritides 36.0% (45/125), degenerative or stress-related musculoskeletal disorder 12.8% (16/125), infection 9.6% (12/125), malignancy 9.6% (12/125), giant cell vasculitis 6.4% (8/125) and other vasculitis 6.4% (8/125) (Table 1). Diagnosis changed in 19% (39/207) of patients fulfilling the 2012 ACR/EULAR PMR classification criteria and in 49% (86/175) of patients who did not.Table 1.Demographic and clinical characteristics of the study sample.Number of patients382Female (%)218 (57.1%)Age at diagnosis in years [IQR]70.0 [64.0–77.8]Follow-up in months [IQR]34.0 [21.0–49.0]Diagnosed in rheumatology (%)299 (79%)Treated in rheumatology (%)310 (81%)Nr. of visits [IQR]6.5 [3.0–12.0]Diagnosis changed during follow-up (%)125 (32.7%)Final diagnosis in 125 patients whose initial diagnosis of PMR changedInflammatory arthritides (%)45 (36.0%)Degenerative or stress-related musculoskeletal disorder (%)16 (12.8%)Infection (%)12 (9.6%)Malignancy (%)12 (9.6%)Giant cell vasculitis (%)8 (6.4%)Other vasculitis (%)8 (6.4%)Other rheumatological disease (%)7 (5.6%)Fibromyalgia or other chronic pain syndrome (%)4 (3.2%)Gout or other crystal arthropathy (%)2 (1.6%)Endocrinological disease (%)2 (1.6%)Other or unknown (%)14 (11.2%)Continuous variables are expressed as medians with interquartile ranges, and categorical variables are described as counts with percentages.ConclusionIn a university hospital setting, a third of initial diagnoses of PMR were changed during further evaluation and follow-up. Our findings highlight that thorough consideration of differential diagnosis is always essential when diagnosing PMR. Especially in patients with atypical presentation, there is a substantial risk for misdiagnosis.Disclosure of InterestsJohanna Paltta: None declared, Saara Suuronen: None declared, Laura Pirilä Consultant of: Has received consulting fees from Novartis, UCB, Pfizer, Lilly, Roche, Sanofi, Abbvie, Bristol-Myers-Squibb, Jansen-Cilag, Celgene and MSD, all unrelated to this work, Antti Palomäki Speakers bureau: Has received a lecture fee from Pfizer and Sanofi, all unrelated to this work, Consultant of: Has received consulting fees from Pfizer, Amgen and Abbvie, all unrelated to this work
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Suilamo S, Li XG, Lankinen P, Oikonen V, Tolvanen T, Luoto P, Viitanen R, Saraste A, Seppänen M, Pirilä L, Hohenthal U, Roivainen A. 68Ga-Citrate Positron Emission Tomography of Healthy Men: Whole-Body Biodistribution Kinetics and Radiation Dose Estimates. J Nucl Med 2022; 63:1598-1603. [PMID: 35273093 PMCID: PMC9536698 DOI: 10.2967/jnumed.122.263884] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/07/2022] [Indexed: 11/16/2022] Open
Abstract
68Ga-citrate has one of the simplest chemical structures of all 68Ga-radiopharmaceuticals, and its clinical use is justified by the proven medical applications using its isotope-labeled compound 67Ga-citrate. To support broader application of 68Ga-citrate in medical diagnosis, further research is needed to gain clinical data from healthy volunteers. In this work, we studied the biodistribution of 68Ga-citrate and subsequent radiation exposure from it in healthy males. Methods: 68Ga-citrate was prepared with an acetone-based radiolabeling procedure compliant with Good Manufacturing Practices. Six healthy males (age 41 ± 12 years, mean ± SD) underwent sequential whole-body PET/CT scans after an injection of 204 ± 8 MBq of 68Ga-citrate. Serial arterialized venous blood samples were collected during PET imaging and the radioactivity concentration was measured with a gamma counter. Urinary voids were collected and measured. The Medical Internal Radiation Dose (MIRD) bladder-voiding model with a 3.5 hour voiding interval was used. A model using a 70 kg adult male and MIRD schema was used to estimate absorbed doses in target organs and effective doses. Calculations were performed using OLINDA/EXM 2.0 software. Results: Radioactivity clearance from the blood was slow, and relatively high radioactivity concentrations were observed over the whole of the 3 hour measuring period. Although radioactivity excretion via urine was rather slow (biological half-time, 69 ± 24 hours), the highest decay-corrected concentrations in urinary bladder contents were measured at 90 and 180 minute time points. Moderate concentrations were also seen in kidneys, liver, and spleen. The source organs showing the largest residence times were muscle, liver, lung, and heart contents. The heart wall received the highest absorbed dose of 0.077 ± 0.008 mSv/MBq. The mean effective dose (ICRP 103) was 0.021 ± 0.001 mSv/MBq. Conclusion: PET imaging with 68Ga-citrate is associated with modest radiation exposure. A 200 MBq injection of 68Ga-citrate results in an effective radiation dose of 4.2 mSv, which is in the same range as other 68Ga-labeled tracers. This suggests the feasibility of clinical studies using 68Ga-citrate imaging in humans and the possibility of performing multiple scans in the same subjects across the course of a year.
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11
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Salomäki SP, Saraste A, Kemppainen J, Hurme S, Knuuti J, Nuutila P, Seppänen M, Roivainen A, Airaksinen J, Salo T, Oksi J, Pirilä L, Hohenthal U. 18F-FDG positron emission tomography/computed tomography of cardiac implantable electronic device infections. J Nucl Cardiol 2021; 28:2992-3003. [PMID: 32737839 PMCID: PMC8709812 DOI: 10.1007/s12350-020-02256-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 05/18/2020] [Indexed: 02/01/2023]
Abstract
BACKGROUND The diagnosis of cardiac implantable electronic device (CIED) infection is challenging because of its variable presentations. We studied the value of 2-[18F]fluoro-2-deoxy-D-glucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) in the detection of CIED infection. METHODS AND RESULTS Thirty patients with suspected CIED infection underwent 18F-FDG-PET/CT. The control group was ten patients with asymptomatic CIED who underwent cancer-related 18F-FDG-PET/CT. 18F-FDG-PET/CT was evaluated visually, semiquantitatively as maximum standardized uptake value (SUVmax) and target-to-background ratio (TBR). Final diagnosis of CIED infection was based on clinical and bacteriological data. 18F-FDG-PET/CT was visually positive in all 9 patients with recent (≤ 8 weeks) implantation of CIED, but only 4 had confirmed CIED infection. 18F-FDG-PET/CT was true positive in 9 out of 21 cases with remote implantation of CIED and false positive in 3 (14.3%) cases. 18F-FDG-PET/CT was also false positive in 3 (30%) cases of control group. The SUVmax of the pocket area was significantly higher in patients with CIED infection than in the control group (4.8 ± 2.4 vs 2.0 ± .8, P < .001). By using the cut-off value of TBR ≥ 1.8, sensitivity of 18F-FDG-PET/CT for the diagnosis of CIED infection in patients with remote implantation was 90% and specificity 73%, PPV 75%, and NPV 89%. CONCLUSIONS 18F-FDG-PET/CT is a sensitive but nonspecific method in the diagnosis of CIED infection.
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Affiliation(s)
| | - Antti Saraste
- Turku PET Centre, University of Turku, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
- Heart Centre, Turku University Hospital, Turku, Finland
- Department of Clinical Medicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Jukka Kemppainen
- Turku PET Centre, University of Turku, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
- Department of Physiology and Nuclear Medicine, Turku University HospitalTurku University Hospital, Turku, Finland
| | - Saija Hurme
- Department of Biostatistics, University of Turku, Turku, Finland
| | - Juhani Knuuti
- Turku PET Centre, University of Turku, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Pirjo Nuutila
- Division of Medicine, Turku University Hospital, P.O. Box 52, 20521, Turku, Finland
- Turku PET Centre, University of Turku, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
- Department of Clinical Medicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Marko Seppänen
- Turku PET Centre, University of Turku, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
- Department of Physiology and Nuclear Medicine, Turku University HospitalTurku University Hospital, Turku, Finland
| | - Anne Roivainen
- Turku PET Centre, University of Turku, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Juhani Airaksinen
- Heart Centre, Turku University Hospital, Turku, Finland
- Department of Clinical Medicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Tiina Salo
- Heart Centre, Turku University Hospital, Turku, Finland
| | - Jarmo Oksi
- Division of Medicine, Turku University Hospital, P.O. Box 52, 20521, Turku, Finland
- Department of Clinical Medicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Laura Pirilä
- Division of Medicine, Turku University Hospital, P.O. Box 52, 20521, Turku, Finland
- Department of Clinical Medicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Ulla Hohenthal
- Division of Medicine, Turku University Hospital, P.O. Box 52, 20521, Turku, Finland
- Department of Clinical Medicine, Faculty of Medicine, University of Turku, Turku, Finland
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12
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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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Bamberg K, Mehtälä L, Arola O, Laitinen S, Nordling P, Strandberg M, Strandberg N, Paltta J, Mali M, Espinosa-Ortega F, Pirilä L, Lundberg IE, Savukoski T, Pettersson K. Evaluation of a New Skeletal Troponin I Assay in Patients with Idiopathic Inflammatory Myopathies. J Appl Lab Med 2021; 5:320-331. [PMID: 32445386 DOI: 10.1093/jalm/jfz016] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/01/2019] [Indexed: 11/13/2022]
Abstract
BACKGROUND The current biomarkers for diagnosis and monitoring of injured and diseased skeletal muscles, such as creatine kinase (CK), have limited tissue specificity and incapability to differentiate between pathological and physiological changes. Thus, new biomarkers with improved diagnostic accuracy are needed. Our aim was to develop and validate a novel assay for skeletal troponin I (skTnI), and to assess its clinical performance in patients with idiopathic inflammatory myopathies (IIM). METHODS A two-step fluoroimmunoassay was used to analyze samples from healthy reference individuals (n = 140), patients with trauma (n = 151), and patients with IIM (n = 61). RESULTS The limit of detection was 1.2 ng/mL, and the upper reference limit (90th percentile) was 5.2 ng/mL. The median skTnI concentrations were <limit of detection (LoD), 2.7 ng/mL, and 8.6 ng/mL in reference, trauma, and IIM cohorts, respectively. Differences in measured skTnI levels were statistically significant between all three study cohorts (Kruskal-Wallis P < 0.001; Mann-Whitney P < 0.001 for all). skTnI and CK had a strong positive correlation (Spearman's r = 0.771, P < 0.001), and the longitudinal changes in skTnI mirrored those observed with CK. CONCLUSIONS With the skTnI assay, patients with IIM were identified from healthy individuals and from patients with traumatic muscular injuries. When compared to CK, skTnI appeared to be more accurate in managing patients with low-grade IIM disease activities. The developed assay serves as a reliable analytical tool for the assessment of diagnostic accuracy of skTnI in the diagnosis and monitoring of myopathies.
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Affiliation(s)
- Katriina Bamberg
- Department of Biochemistry/Biotechnology, University of Turku, Turku, Finland
| | - Laura Mehtälä
- Department of Biochemistry/Biotechnology, University of Turku, Turku, Finland
| | - Olli Arola
- Intensive Care Medicine and Pain Management, Turku University Hospital, Turku, Finland
| | | | | | | | - Niko Strandberg
- Department of Orthopaedic Surgery, Turku University Hospital, Turku, Finland
| | - Johanna Paltta
- Department of Rheumatology, Turku University Hospital, Turku, Finland
| | - Markku Mali
- Department of Rheumatology, Turku University Hospital, Turku, Finland
| | - Fabricio Espinosa-Ortega
- Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Laura Pirilä
- Department of Rheumatology, Turku University Hospital, Turku, Finland
| | - Ingrid E Lundberg
- Division of Rheumatology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Tanja Savukoski
- Department of Biochemistry/Biotechnology, University of Turku, Turku, Finland
| | - Kim Pettersson
- Department of Biochemistry/Biotechnology, University of Turku, Turku, Finland
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14
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Taimen K, Mustonen A, Pirilä L. The Delay and Costs of Diagnosing Systemic Vasculitis in a Tertiary-Level Clinic. Rheumatol Ther 2021; 8:233-242. [PMID: 33315187 PMCID: PMC7991036 DOI: 10.1007/s40744-020-00266-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 11/28/2020] [Indexed: 12/26/2022] Open
Abstract
INTRODUCTION The diagnosis of systemic vasculitis is a challenge because of the heterogeneity of clinical manifestations. The aim of this study is to analyze the diagnostic delay in systemic vasculitis, the total costs during the first year of care, and how the diagnostic delay affects the costs in a tertiary health care facility. METHODS Patients with a new diagnosis of systemic vasculitis between 2010 and 2018 were identified from hospital records. The diagnostic delay and health care costs were evaluated during the diagnostic period and within 12 months after the first contact with tertiary health care. Vasculitis-related costs were recorded as true costs charged. A total of 317 patients fulfilled the study criteria. The diagnoses were grouped into three clinically relevant groups: IgA vasculitis and other small-vessel vasculitis (n = 64), ANCA-associated vasculitis (AAV) (n = 112), and large-vessel vasculitis (LVV) (n = 141). RESULTS The diagnostic delay from the first referral to tertiary-level clinic was shortest in the LVV group and longest in the AAV group. Total costs during the diagnostic period were the highest in the AAV group (median = €6754 [IQR €8812]) and lowest in the LVV group (median = €3123 [IQR €4517]), p < 0.001. There was a significant positive correlation between the diagnostic delay and total costs during the diagnostic period and 12 months (rs = 0.38, p < 0.001 and rs = 0.34, p < 0.001, respectively). In a linear model, the inpatient days and the number of laboratory tests were the strongest predictors (p < 0.001) of a higher treatment cost during the diagnostic period. CONCLUSIONS There is a substantial diagnostic delay that correlates significantly with the costs in tertiary-level health care when diagnosing systemic vasculitis.
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Affiliation(s)
- Kirsi Taimen
- Division of Medicine, Center for Rheumatology and Clinical Immunology, Turku University Hospital, Turku, Finland.
- Department of Internal Medicine, University of Turku, Turku, Finland.
| | - Anssi Mustonen
- Division of Medicine, Center for Rheumatology and Clinical Immunology, Turku University Hospital, Turku, Finland
- Department of Internal Medicine, University of Turku, Turku, Finland
| | - Laura Pirilä
- Division of Medicine, Center for Rheumatology and Clinical Immunology, Turku University Hospital, Turku, Finland
- Department of Internal Medicine, University of Turku, Turku, Finland
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15
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Viitanen R, Moisio O, Lankinen P, Li XG, Koivumäki M, Suilamo S, Tolvanen T, Taimen K, Mali M, Kohonen I, Koskivirta I, Oikonen V, Virtanen H, Santalahti K, Autio A, Saraste A, Pirilä L, Nuutila P, Knuuti J, Jalkanen S, Roivainen A. First-in-Humans Study of 68Ga-DOTA-Siglec-9, a PET Ligand Targeting Vascular Adhesion Protein 1. J Nucl Med 2020; 62:577-583. [PMID: 32817143 PMCID: PMC8049366 DOI: 10.2967/jnumed.120.250696] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 06/01/2020] [Accepted: 07/09/2020] [Indexed: 01/13/2023] Open
Abstract
Sialic acid–binding immunoglubulinlike lectin 9 (Siglec-9) is a ligand of vascular adhesion protein 1. A 68Ga-labeled peptide of Siglec-9, 68Ga-DOTA-Siglec-9, holds promise as a novel PET tracer for imaging of inflammation. This first-in-humans study investigated the safety, tolerability, biodistribution, and radiation dosimetry of this radiopharmaceutical. Methods: Six healthy men underwent dynamic whole-body PET/CT. Serial venous blood samples were drawn from 1 to 240 min after intravenous injection of 162 ± 4 MBq of 68Ga-DOTA-Siglec-9. In addition to γ-counting, the plasma samples were analyzed by high-performance liquid chromatography to detect intact tracer and radioactive metabolites. Radiation doses were calculated using the OLINDA/EXM software, version 2.2. In addition, a patient with early rheumatoid arthritis was studied with both 68Ga-DOTA-Siglec-9 and 18F-FDG PET/CT to determine the ability of the new tracer to detect arthritis. Results:68Ga-DOTA-Siglec-9 was well tolerated by all subjects. 68Ga-DOTA-Siglec-9 was rapidly cleared from the blood circulation, and several radioactive metabolites were detected. The organs with the highest absorbed doses were the urinary bladder wall (0.38 mSv/MBq) and kidneys (0.054 mSv/MBq). The mean effective dose was 0.022 mSv/MBq (range, 0.020–0.024 mSv/MBq). Most importantly, however, 68Ga-DOTA-Siglec-9 was comparable to 18F-FDG in detecting arthritis. Conclusion: Intravenous injection of 68Ga-DOTA-Siglec-9 was safe and biodistribution was favorable for testing of the tracer in larger group of patients with rheumatoid arthritis, as is planned for the next phase of clinical trials. The effective radiation dose of 68Ga-DOTA-Siglec-9 was within the same range as the effective radiation doses of other 68Ga-labeled tracers. Injection of 150 MBq of 68Ga-DOTA-Siglec-9 would expose a subject to 3.3 mSv. These findings support the possible repeated clinical use of 68Ga-DOTA-Siglec-9, such as in trials to elucidate the treatment efficacy of novel drug candidates.
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Affiliation(s)
| | - Olli Moisio
- Turku PET Centre, University of Turku, Turku, Finland
| | - Petteri Lankinen
- Department of Orthopaedics and Traumatology, Turku University Hospital and University of Turku, Turku, Finland.,Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Xiang-Guo Li
- Turku PET Centre, University of Turku, Turku, Finland
| | | | - Sami Suilamo
- Department of Medical Physics, Turku University Hospital, Turku, Finland.,Department of Oncology and Radiotherapy, Turku University Hospital, Turku, Finland
| | - Tuula Tolvanen
- Turku PET Centre, Turku University Hospital, Turku, Finland.,Department of Medical Physics, Turku University Hospital, Turku, Finland
| | - Kirsi Taimen
- Department of Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
| | - Markku Mali
- Department of Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
| | - Ia Kohonen
- Department of Radiology, Turku University Hospital, Turku, Finland
| | - Ilpo Koskivirta
- Department of Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
| | - Vesa Oikonen
- Turku PET Centre, University of Turku, Turku, Finland
| | | | | | - Anu Autio
- Turku PET Centre, University of Turku, Turku, Finland.,MediCity Research Laboratory, University of Turku, Turku, Finland; and
| | - Antti Saraste
- Turku PET Centre, University of Turku, Turku, Finland.,Turku PET Centre, Turku University Hospital, Turku, Finland.,Heart Center, Turku University Hospital, Turku, Finland
| | - Laura Pirilä
- Department of Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku, Finland
| | - Pirjo Nuutila
- Turku PET Centre, University of Turku, Turku, Finland.,Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Juhani Knuuti
- Turku PET Centre, University of Turku, Turku, Finland.,Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Sirpa Jalkanen
- MediCity Research Laboratory, University of Turku, Turku, Finland; and
| | - Anne Roivainen
- Turku PET Centre, University of Turku, Turku, Finland .,Turku PET Centre, Turku University Hospital, Turku, Finland
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16
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Kuusalo L, Sokka-Isler T, Kautiainen H, Ekman P, Kauppi MJ, Pirilä L, Rannio T, Uutela T, Yli-Kerttula T, Puolakka K. Automated Text Message-Enhanced Monitoring Versus Routine Monitoring in Early Rheumatoid Arthritis: A Randomized Trial. Arthritis Care Res (Hoboken) 2020; 72:319-325. [PMID: 30740935 DOI: 10.1002/acr.23846] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 02/05/2019] [Indexed: 11/07/2022]
Abstract
OBJECTIVE Frequent monitoring of patients with early rheumatoid arthritis (RA) is required for achieving good outcomes. This study was undertaken to investigate the influence of text message (SMS)-enhanced monitoring on early RA outcomes. METHODS We randomized 166 patients with early, disease-modifying antirheumatic drug-naive RA to receive SMS-enhanced follow-up or routine care. All patients attended visits at 0, 3, and 6 months, and a follow-up visit at 12 months. Treatment was at the physicians' discretion. The intervention included 13 SMSs during weeks 0-24 with questions concerning medication problems (yes/no) and disease activity (patient global assessment [PtGA], scale 0-10). Patients were contacted if response SMSs indicated medication problems or PtGA exceeded predefined thresholds. Primary outcome was 6-month Boolean remission (no swollen or tender joints and normal C-reactive protein levels). Quality of life (QoL; measured by the Short Form 36 survey) and Disease Activity Score in 28 joints (DAS28) were assessed. RESULTS Six and 12-month follow-up data were available for 162 and 157 patients, respectively. In the intervention group, 46% of the patients (38 of 82) reported medication problems and 49% (40 of 82) reported text message PtGAs above the alarm limit. Remission rates at 6 months (P = 0.34) were 51% in the intervention group and 42% in the control group. These rates were 57% and 43% at 12 months (P = 0.17) in the intervention and control groups, respectively. The respective mean ± SD DAS28 scores for the intervention and control groups were 1.92 ± 1.12 and 2.22 ± 1.11 at 6 months (P = 0.09); and 1.79 ± 0.91 and 2.08 ± 1.22 at 12 months (P = 0.28). No differences in QoL were observed. CONCLUSION The study did not meet the primary outcome despite a trend favoring the intervention group. This may be explained by the notably high overall remission rates.
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Affiliation(s)
- Laura Kuusalo
- Turku University Hospital and University of Turku, Turku, Finland
| | | | - Hannu Kautiainen
- University of Eastern Finland, Kuopio, Finland, and Folkhälsan Research Center, Helsinki, Finland
| | | | | | - Laura Pirilä
- Turku University Hospital and University of Turku, Turku, Finland
| | | | | | | | - Kari Puolakka
- South Karelia Central Hospital, Lappeenranta, Finland
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17
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Kuusalo L, Venäläinen M, Saranpää S, Kirjala H, Elo L, Pirilä L. THU0561 PREDICTING LIVER TOXICITY CAUSED BY CONVENTIONAL SYNTHETIC DISEASE-MODIFYING ANTIRHEUMATIC DRUGS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Routine laboratory testing is recommended for early identification of toxicity during conventional synthetic disease modifying antirheumatic drug (csDMARD) treatment. Based on expert consensus, testing is recommended every 2–4 weeks for the first 3 moths and quarterly thereafter (1).Objectives:In addition to evaluating the incidence of alanine transaminase (ALT) elevations in rheumatoid arthritis (RA) patients initiated on 1–2 csDMARDs, we aimed to distinguish patterns in ALT levels to develop a model for identifying patients at high risk for liver toxicity.Methods:We identified RA patients who were initiated a new csDMARD course at the rheumatology clinic of Turku University Hospital in 2013–2019. Baseline and follow-up safety monitoring results were drawn from the electronic health record (EHR) data. Data on diagnoses and csDMARD initiation/cessation dates were manually confirmed from the EHR.As the primary endpoint, we used ALT-elevations of more than twice the upper limit of reference range (women ≥ 70 U/l, men ≥ 100 U/l) within 6 months after treatment initiation. Intergroup differences were tested using Mann-Whitney test for continuous variables and the chi-square test or Fisher’s exact test (n<5) for categorical variables. Associations between different characteristics and the primary endpoint were tested using Cox proportional hazards regression.Results:We identified 2851 RA patients of whom 1017 initiated a new csDMARD course requiring laboratory monitoring. Of these, 860 patients (58.9 years, 68% women, 65% seropositive) were included in the analyses after excluding patients with missing laboratory results (n=148) or elevated ALT at baseline (n=9). Of the 860 patients, 220 initiated two csDMARDs simultaneously [99% sulfasalazine (SSZ) and methotrexate (MTX)]. Primary endpoint was reached in 55 of 860 (6.4%) patients, including 10 who initiated two csDMARDS. Of these 55 patients, primary endpoint was reached in 40 of 55 (73%) patients during first three follow-up tests. In 31 of 55 (56%) patients, including 3 initiators of 2 csDMARDs, elevated ALT led to csDMARD cessation during the first 6 months. In Cox proportional hazards model with age, sex, seropositivity, baseline ALT, and csDMARDs as the explanatory variables, only baseline ALT level [hazard ratio 1.56 per 1 SD increase, 95% confidence interval (CI) 1.30–1.88, p<0.001] was associated with incident ALT-elevations. Survival according to normalized baseline ALT is shown in Figure, where normalized ALT value of 1.0 refers to the upper limit of reference range (women 35 U/l, men 50 U/l).Table.Multivariable Cox proportional hazards model including the results of the first follow-up laboratory test. Only values before occurrence of primary endpoint were used (n=843).CharacteristicHazard ratio (95% CI)P ValueAge (per year)1.00 (0.98-1.02)0.78Sex (male)0.50 (0.21-1.15)0.10Seronegativity0.88 (0.44-1.75)0.71Baseline ALT*1.72 (1.32-2.25)<0.001ALT / t (per 1 SD increase / 30 days)§1.33 (1.17-1.52)<0.001Methotrexate0.58 (0.22-1.52)0.27Sulfasalazine0.95 (0.38-2.35)0.91Azathioprine2.30 (0.48-11.13)0.30Leflunomide1.08 (0.23-5.16)0.92*Normalized ALT according to sex-specific reference range;§Rate of change from baseline to 1stfollow-up testConclusion:Most incident ALT elevations can be predicted before the first csDMARD dose. Patients with elevated ALT at baseline or a rising trend at first follow-up are at high risk for liver toxicity and benefit from frequent testing.References:[1]Saag KG et al. American College of Rheumatology 2008 recommendations for the use of nonbiologic and biologic disease-modifying antirheumatic drugs in rheumatoid arthritis. Arthritis Rheum 2008;59:762-84.Disclosure of Interests:Laura Kuusalo Consultant of: Gilead, Pfizer Finland, Speakers bureau: Abbvie, Orion, Pfizer Finland, Novartis, Sanofi, Mikko Venäläinen: None declared, Sofia Saranpää: None declared, Heidi Kirjala: None declared, Laura Elo: None declared, Laura Pirilä Consultant of: Novartis, MSD Finland, Roche, Bristol-Myers-Squibb, Pfizer Finland, Sanofi, Abbvie, Eli Lilly Finland, UCB Pharma, Janssen-Cilag, Mylan, Sandoz, Boerhinger-Ingelheim, Paid instructor for: Boehringer-Ingelheim, MSD Finland, Speakers bureau: Boehringer-Ingelheim, Pfizer Finland
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Palomäki A, Paltta J, Pirilä L, Heikkilä HK, Isomäki P, Huhtakangas J, Sokka-Isler T, Kaipiainen-Seppänen O, Eklund K. AB1251 VALIDITY OF RHEUMATOID ARTHRITIS DIAGNOSES IN FINNISH BIOBANK PATIENTS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Finnish healthcare registers are used in medical research, but there is little data about the validity of these registers in rheumatology.Objectives:The aim of our study was to determine the validity of rheumatoid arthritis (RA) diagnoses in patients participating in the Finnish Biobanks.Methods:We reviewed the electronic patient charts of 125 patients with at least one visit with a diagnosis of seropositive RA, 125 patients with at least one visit with a diagnosis of seronegative RA and 250 age-and-sex matched controls. Patients were randomly selected from Finnish biobank participants. We evaluated whether the patients’ diagnosis of RA recorded in the hospital discharge registry at the participating hospital was correct according to chart review and expert opinion. In the control group it was investigated whether the diagnosis of RA was written in the patients’ chart, but the diagnosis code was not recorded.Results:The positive predictive value (PPV) of a single hospital registry diagnosis of seropositive RA was 0.74 but rose to 0.98 in patients with a special reimbursement for seropositive RA and 0.98 in anti-citrullinated protein antibody positive patients. For seronegative RA, the PPV of a diagnosis was 0.72 and in patients with a special reimbursement for seronegative RA 0.89. The PPV was higher in patients with more than one visit with the diagnosis: 0.92 if the patients had at least 5 visits with seropositive RA and 0.88 with at least 5 visits with seronegative RA. Negative predictive value for RA diagnosis was 0.99.Conclusion:These results demonstrate that the validity of RA diagnoses in healthcare registers can be markedly improved with data about special reimbursement for medication, number of visits and serological data.Disclosure of Interests:Antti Palomäki Consultant of: Pfizer, Speakers bureau: Pfizer, Sanofi, MSD, Johanna Paltta Consultant of: Lilly, Abbvie, Laura Pirilä Consultant of: Novartis, MSD Finland, Roche, Bristol-Myers-Squibb, Pfizer, Sanofi, Abbvie, Oy Eli LIlly Finland Ab, UCB Pharma Oy Finland, Jansen-Cilag, Mylan, Sandoz, Boehringer-Ingelheim, Paid instructor for: Boehringer -Ingelheim, MSD Finland, Speakers bureau: Boehringer-Ingelheim, Pfizer Finland, Hanna-Kaisa Heikkilä: None declared, Pia Isomäki Consultant of: Abbvie, BMS, Eli Lilly, MSD, Novartis, Pfizer, Roche, Sanofi, Johanna Huhtakangas Consultant of: Boehringer Ingelheim, Tuulikki Sokka-Isler: None declared, Oili Kaipiainen-Seppänen Speakers bureau: Boehringer Ingelheim, Kari Eklund Consultant of: Celgene, Lilly, Speakers bureau: Pfizer, Roche
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19
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Taimen K, Heino S, Kohonen I, Relas H, Huovinen R, Hänninen A, Pirilä L. Granulocyte colony-stimulating factor- and chemotherapy-induced large-vessel vasculitis: six patient cases and a systematic literature review. Rheumatol Adv Pract 2020; 4:rkaa004. [PMID: 32128475 PMCID: PMC7046168 DOI: 10.1093/rap/rkaa004] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 09/10/2019] [Revised: 12/18/2019] [Indexed: 12/21/2022] Open
Abstract
Objective Patients receiving chemotherapy are prone to neutropoenic infections, presenting with non-specific symptoms such as a high fever and elevated inflammatory parameters. Large-vessel vasculitis (LVV) may have a similar clinical presentation and should be included in differential diagnostics. A few published case reports and adverse event reports suggest a causal association between LVV and the use of granulocyte colony-stimulating factor (G-CSF) and chemotherapy. Our objective was to evaluate the relationship between LVV, G-CSF and chemotherapy. Methods Between 2016 and 2018, we identified six patients in Finland with probable drug-induced LVV associated with G-CSF and chemotherapy. All six patients had breast cancer. A systematic literature review was performed according to PRISMA guidelines using comprehensive search terms for cancer, chemotherapy, G-CSF and LVV. Results The literature search identified 18 similar published case reports, of which most were published after 2014. In all patients combined (n = 24), the time delay from the last drug administration to the LVV symptoms was on average 5 days with G-CSF (range = 1–8 days) and 9 days with chemotherapy (range = 1–21 days). Common symptoms were fever (88%), neck pain (50%) and chest pain (42%). Based on imaging, 17/24 (71%) had vascular inflammation in the thoracic aorta and supra-aortic vessels, but 5/24 (21%) reportedly had inflammation limited to the carotid area. Conclusion This review suggests that LVV may be a possible serious adverse event associated with G-CSF and chemotherapy. Successful management of drug-induced LVV requires early identification, through diagnostic imaging, and discontinuation of the drug.
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Affiliation(s)
- Kirsi Taimen
- Center for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku.,Department of Internal Medicine, University of Turku, Turku
| | - Samu Heino
- Center for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku.,Department of Internal Medicine, University of Turku, Turku
| | - Ia Kohonen
- Department of Radiology, Turku University Hospital, Turku
| | - Heikki Relas
- Department of Rheumatology, Helsinki University Hospital, Helsinki
| | - Riikka Huovinen
- Department of Oncology and Radiotherapy, Turku University Hospital, Turku
| | - Arno Hänninen
- Department of Clinical Microbiology and Immunology, Turku University Hospital, Turku, Finland
| | - Laura Pirilä
- Center for Rheumatology and Clinical Immunology, Division of Medicine, Turku University Hospital, Turku.,Department of Internal Medicine, University of Turku, Turku
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20
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Aaltonen V, Alavesa M, Pirilä L, Vesti E, Al-Juhaish M. Case report: bilateral Mooren ulcer in association with hepatitis C. BMC Ophthalmol 2017; 17:239. [PMID: 29212473 PMCID: PMC5719567 DOI: 10.1186/s12886-017-0633-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 03/12/2017] [Accepted: 11/27/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Mooren ulcer has been considered as an idiopathic autoimmune keratitis. However, it has been in some cases suggested to be associated with hepatitis C, although the evidence is very vague. CASE PRESENTATION We present a case of a man who was diagnosed with a primary Mooren ulcer in his right eye. The eye became blind despite of intensive treatment with local medications and extensive surgical procedures. After 10 years, the patient was diagnosed with the same disease, now in his left, previously healthy eye. There was no history that would suggest a secondary Mooren ulcer, but a chronic hepatitis C infection was detected. Treatment was targeted against hepatitis C (ribavirin and interferon) in addition to immunosuppressive medical and surgical treatment which resulted in a full and more than 6 years lasting remission of the disease. CONCLUSIONS Whether the immunomodulatory and immunosuppressive medication against hepatitis C was the key reason for the good results in the treatment of the second eye, remains elusive. The causality of hepatitis C with respect to the pathogenesis of Mooren ulcer on this patient remains open, but should be considered as one of the possible etiological factors of the disease.
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Affiliation(s)
- Vesa Aaltonen
- Department of Ophthalmology, Turku University Hospital, PO Box 52, FIN-20521, Turku, Finland. .,Department of Ophthalmology, University of Turku, FIN-20014, Turku, Finland.
| | - Mari Alavesa
- Department of Ophthalmology, Turku University Hospital, PO Box 52, FIN-20521, Turku, Finland
| | - Laura Pirilä
- Department of Rheumatology, Division of Medicine, Turku University Hospital, Box 52, FIN-20521, Turku, PO, Finland.,Department of Internal Medicine, University of Turku, FIN-20014, Turku, Finland
| | - Eija Vesti
- Department of Ophthalmology, Turku University Hospital, PO Box 52, FIN-20521, Turku, Finland.,Department of Ophthalmology, University of Turku, FIN-20014, Turku, Finland
| | - Mohammad Al-Juhaish
- Department of Ophthalmology, Turku University Hospital, PO Box 52, FIN-20521, Turku, Finland
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21
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Pirilä L, Sokka T, Kauppi MJ, Rantalaiho VM, Mervaala E, Puolakka K. Alternative interpretation of data for recommendations on how to manage rheumatoid arthritis. Ann Rheum Dis 2017; 76:e49. [DOI: 10.1136/annrheumdis-2017-211505] [Citation(s) in RCA: 2] [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] [Received: 03/21/2017] [Accepted: 03/23/2017] [Indexed: 11/04/2022]
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22
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Aaltonen KJ, Ylikylä S, Tuulikki Joensuu J, Isomäki P, Pirilä L, Kauppi M, Rannio T, Eklund K, Blom M, Nordström D. Efficacy and effectiveness of tumour necrosis factor inhibitors in the treatment of rheumatoid arthritis in randomized controlled trials and routine clinical practice. Rheumatology (Oxford) 2017; 56:725-735. [PMID: 28064209 DOI: 10.1093/rheumatology/kew467] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 03/15/2016] [Indexed: 12/30/2022] Open
Abstract
Objective Efficacy of TNF inhibitors in the treatment of RA assessed in randomized controlled trials (RCTs) may not be fully comparable to routine care owing to the stringent inclusion criteria. The objective of this study was to observe the effectiveness of TNF inhibitors in real-world patients and assess the patients' potential eligibility for the RCTs. Methods RA patients starting a TNF-inhibitor treatment between 2004 and 2014 were identified from the National Register for Biologic Treatment in Finland, which is a longitudinal observational cohort study. Effectiveness was measured using the ACR and EULAR response criteria and by studying the proportion of patients reaching DAS28 remission. The patients' baseline characteristics were compared against the inclusion criteria of 27 RCTs. Results EULAR moderate and good treatment responses at 6 months were achieved by 69 and 40% of the users of the first TNF inhibitor, respectively. ACR20, ACR50 and ACR70 responses were reached by 48, 27 and 13%, respectively. DAS28 remission was reached by 47%. Only 7.6-44% of the patients would have been potentially eligible for the RCTs. The eligible patients had better treatment responses compared with the non-eligible patients. Different TNF inhibitors were mostly equipotent, but the usage of MTX co-therapy had a major influence on treatment response. Conclusion Only a small proportion of patients would have been eligible for RCTs, and the efficacy of TNF inhibitors assessed in them cannot be generalized directly into Finnish routine health care.
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Affiliation(s)
| | - Suvi Ylikylä
- Faculty of Pharmacy, University of Helsinki, Helsinki
| | | | - Pia Isomäki
- Department of Internal Medicine, Centre for Rheumatic Diseases, Tampere University Hospital.,School of Medicine, University of Tampere, Tampere
| | - Laura Pirilä
- Department of Rheumatology, Turku University Hospital, Turku
| | - Markku Kauppi
- School of Medicine, University of Tampere, Tampere.,Department of Rheumatology, Päijät-Häme Central Hospital, Lahti
| | - Tuomas Rannio
- Department of Rheumatology, Jyväskylä Central Hospital, Jyväskylä.,Faculty of Health Sciences, University of Eastern Finland, Kuopio
| | - Kari Eklund
- Department of Medicine, Helsinki University Central Hospital.,Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Marja Blom
- Faculty of Pharmacy, University of Helsinki, Helsinki
| | - Dan Nordström
- Department of Medicine, Helsinki University Central Hospital.,Faculty of Medicine, University of Helsinki, Helsinki, Finland
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23
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Rannio T, Asikainen J, Hannonen P, Yli-Kerttula T, Ekman P, Pirilä L, Kuusalo L, Mali M, Puurtinen-Vilkki M, Kortelainen S, Paltta J, Taimen K, Kauppi M, Laiho K, Nyrhinen S, Mäkinen H, Isomäki P, Uotila T, Aaltonen K, Kautiainen H, Sokka T. Three out of four disease-modifying anti-rheumatic drug-naïve rheumatoid arthritis patients meet 28-joint Disease Activity Score remission at 12 months: results from the FIN-ERA cohort. Scand J Rheumatol 2017; 46:425-431. [DOI: 10.1080/03009742.2016.1266029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- T Rannio
- Department of Rheumatology, Central Hospital of Central Finland, Jyväskylä, Finland
| | - J Asikainen
- Department of Rheumatology, Central Hospital of Central Finland, Jyväskylä, Finland
| | - P Hannonen
- Department of Rheumatology, Central Hospital of Central Finland, Jyväskylä, Finland
| | - T Yli-Kerttula
- Department of Rheumatology, Satakunta Central Hospital, Rauma, Finland
| | - P Ekman
- Department of Rheumatology, Satakunta Central Hospital, Rauma, Finland
| | - L Pirilä
- Department of Rheumatology, Internal Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - L Kuusalo
- Department of Rheumatology, Internal Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - M Mali
- Department of Rheumatology, Internal Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - M Puurtinen-Vilkki
- Department of Rheumatology, Internal Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - S Kortelainen
- Department of Rheumatology, Internal Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - J Paltta
- Department of Rheumatology, Internal Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - K Taimen
- Department of Rheumatology, Internal Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - M Kauppi
- Department of Rheumatology, Päijät-Häme Central Hospital, Lahti, Finland
| | - K Laiho
- Department of Rheumatology, Päijät-Häme Central Hospital, Lahti, Finland
| | - S Nyrhinen
- Department of Rheumatology, Päijät-Häme Central Hospital, Lahti, Finland
| | - H Mäkinen
- Department of Rheumatology, Tampere University Hospital, Tampere, Finland
| | - P Isomäki
- Department of Rheumatology, Tampere University Hospital, Tampere, Finland
| | - T Uotila
- Department of Rheumatology, Tampere University Hospital, Tampere, Finland
| | - K Aaltonen
- Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - H Kautiainen
- Department of General Practice and Primary Health Care, University of Helsinki, Helsinki, Finland
| | - T Sokka
- Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
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Salomäki SP, Saraste A, Kemppainen J, Bax JJ, Knuuti J, Nuutila P, Seppänen M, Roivainen A, Airaksinen J, Pirilä L, Oksi J, Hohenthal U. 18F-FDG positron emission tomography/computed tomography in infective endocarditis. J Nucl Cardiol 2017; 24:195-206. [PMID: 26662063 DOI: 10.1007/s12350-015-0325-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 10/14/2015] [Indexed: 11/24/2022]
Abstract
BACKGROUND The diagnosis of infective endocarditis (IE), especially the diagnosis of prosthetic valve endocarditis (PVE) is challenging since echocardiographic findings are often scarce in the early phase of the disease. We studied the use of 2-[18F]fluoro-2-deoxy-D-glucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) in IE. METHODS Sixteen patients with suspected PVE and 7 patients with NVE underwent visual evaluation of 18F-FDG-PET/CT. 18F-FDG uptake was measured also semiquantitatively as maximum standardized uptake value (SUVmax) and target-to-background ratio (TBR). The modified Duke criteria were used as a reference. RESULTS There was strong, focal 18F-FDG uptake in the area of the affected valve in all 6 cases of definite PVE, in 3 of 5 possible PVE cases, and in 2 of 5 rejected cases. In all patients with definite PVE, SUVmax of the affected valve was higher than 4 and TBR higher than 1.8. In contrast to PVE, only 1 of 7 patients with NVE had uptake of 18F-FDG by PET/CT in the valve area. Embolic infectious foci were detected in 58% of the patients with definite IE. CONCLUSIONS 18F-FDG-PET/CT appears to be a sensitive method for the detection of paravalvular infection associated with PVE. Instead, the sensitivity of PET/CT is limited in NVE.
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Affiliation(s)
- Soile Pauliina Salomäki
- Division of Medicine, University of Turku and Turku University Hospital, P.O. Box 52, 20521, Turku, Finland
| | - Antti Saraste
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
- Heart Center, University of Turku and Turku University Hospital, Turku, Finland
- Faculty of Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Jukka Kemppainen
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
- Department of Physiology and Nuclear Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - Jeroen J Bax
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Juhani Knuuti
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Pirjo Nuutila
- Division of Medicine, University of Turku and Turku University Hospital, P.O. Box 52, 20521, Turku, Finland
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
- Faculty of Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Marko Seppänen
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
- Department of Physiology and Nuclear Medicine, University of Turku and Turku University Hospital, Turku, Finland
| | - Anne Roivainen
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Juhani Airaksinen
- Heart Center, University of Turku and Turku University Hospital, Turku, Finland
- Faculty of Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Laura Pirilä
- Division of Medicine, University of Turku and Turku University Hospital, P.O. Box 52, 20521, Turku, Finland
| | - Jarmo Oksi
- Division of Medicine, University of Turku and Turku University Hospital, P.O. Box 52, 20521, Turku, Finland
- Faculty of Medicine, Department of Clinical Medicine, University of Turku, Turku, Finland
| | - Ulla Hohenthal
- Division of Medicine, University of Turku and Turku University Hospital, P.O. Box 52, 20521, Turku, Finland.
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25
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Aaltonen KJ, Joensuu JT, Pirilä L, Kauppi M, Uutela T, Varjolahti-Lehtinen T, Yli-Kerttula T, Isomäki P, Nordström D, Sokka T. Drug survival on tumour necrosis factor inhibitors in patients with rheumatoid arthritis in Finland. Scand J Rheumatol 2016; 46:359-363. [DOI: 10.1080/03009742.2016.1234641] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- KJ Aaltonen
- Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - JT Joensuu
- Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - L Pirilä
- Department of Medicine, Turku University Hospital, Turku, Finland
| | - M Kauppi
- Department of Medicine, Lahti Central Hospital, Lahti, Finland
- Faculty of Medicine, University of Tampere, Tampere, Finland
| | - T Uutela
- Department of Medicine, Lapland Central Hospital, Rovaniemi, Finland
| | | | - T Yli-Kerttula
- Department of Medicine, Satakunta Central Hospital, Rauma, Finland
| | - P Isomäki
- Faculty of Medicine, University of Tampere, Tampere, Finland
- Department of Medicine, Tampere University Hospital, Tampere, Finland
| | - D Nordström
- Department of Medicine, Helsinki University Hospital, Helsinki, Finland
- Faculty of Medicine, Clinicum, University of Helsinki, Helsinki, Finland
| | - T Sokka
- Department of Medicine, Jyväskylä Central Hospital, Jyväskylä, Finland
- Faculty of Health Science, University of Eastern Finland, Kuopio, Finland
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Sipilä KH, Ranga V, Rappu P, Torittu A, Pirilä L, Käpylä J, Johnson MS, Larjava H, Heino J. Extracellular citrullination inhibits the function of matrix associated TGF-β. Matrix Biol 2016; 55:77-89. [DOI: 10.1016/j.matbio.2016.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 02/18/2016] [Accepted: 02/21/2016] [Indexed: 10/22/2022]
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Aaltonen K, Joensuu J, Pirilä L, Kauppi M, Uutela T, Varjolahti-Lehtinen T, Yli-Kerttula T, Isomäki P, Nordström D, Sokka T. FRI0194 Drug Survival on TNF Inhibitors in Patients with Rheumatoid Arthritis in Finland. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4158] [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, Ylikylä S, Joensuu J, Isomäki P, Pirilä L, Kauppi M, Rannio T, Eklund K, Blom M, Nordström D. FRI0156 Effectiveness of Tumor Necrosis Factor-Inhibitors in The Treatment of Rheumatoid Arthritis: A Comparison between Randomized Controlled Trials and Routine Clinical Practice. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4179] [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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Rannio T, Asikainen J, Hannonen P, Yli-Kerttula T, Ekman P, Pirilä L, Kuusalo L, Mali M, Puurtinen-Vilkki M, Kortelainen S, Paltta J, Taimen K, Kauppi M, Laiho K, Nyrhinen S, Mäkinen H, Isomäki P, Uotila T, Aaltonen K, Kautiainen H, Sokka T. SAT0090 Three out of Every Four Patients with Dmard-Naive Early Rheumatoid Arthritis Meet DAS28 Remission at 12 Months in Finland. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4894] [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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Tuominen S, Leino M, Pirilä L, Tuominen R. Measuring the economic value of morning stiffness: consistency over 1 year. Scand J Rheumatol 2015; 45:294-8. [PMID: 26681432 DOI: 10.3109/03009742.2015.1107912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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 The aims of this study were to determine the within-patient variation in the duration of morning stiffness (MS) over 1 year and the corresponding monetary equivalents assigned to its changes using the willingness-to-pay (WTP) methodology. METHOD A sample of 100 patients with rheumatoid arthritis (RA) was drawn from the register of the Hospital District of Southwest Finland. Subjects were interviewed by telephone on recruitment and 1 year later, using the same structured questionnaire. The subjects were asked to estimate in minutes the typical duration of their MS during the previous week. Sociodemographic background data and subjects' WTP for a 25, 50, 75, and 100% reduction in MS duration were requested, and years with RA diagnosis and serological data were obtained from hospital records. RESULTS After 1 year, there was a reduction in average MS duration from 44.7 min to 39.0 min (ns); duration was reduced in 35% of patients, unchanged in 35%, and prolonged in 30%. Changes in MS duration were reflected by within-patient variation in WTP estimates. In linear regression models, change in duration of MS significantly (p < 0.03) explained the variation in change of WTP for symptom reduction. CONCLUSIONS WTP methodology produces consistent monetary values to assess the relative values patients with RA place on reduction in duration of MS.
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Affiliation(s)
- S Tuominen
- a Department of Medicine, Rheumatology Unit , Turku University Hospital , Turku , Finland.,b Department of Public Health , University of Turku , Turku , Finland
| | - M Leino
- a Department of Medicine, Rheumatology Unit , Turku University Hospital , Turku , Finland.,b Department of Public Health , University of Turku , Turku , Finland
| | - L Pirilä
- a Department of Medicine, Rheumatology Unit , Turku University Hospital , Turku , Finland
| | - R Tuominen
- b Department of Public Health , University of Turku , Turku , Finland.,c Hospital District of Southwest Finland , Turku , Finland
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Leino M, Tuominen S, Pirilä L, Tuominen R. Effects of rheumatoid arthritis on household chores and leisure-time activities. Rheumatol Int 2015; 35:1881-8. [DOI: 10.1007/s00296-015-3313-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 06/08/2015] [Indexed: 10/23/2022]
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Rannio T, Asikainen J, Hannonen P, Yli-Kerttula T, Ekman P, Kuusela L, Pirilä L, Mali M, Puurtinen-Vilkki M, Kortelainen S, Paltta J, Taimen K, Kauppi M, Laiho K, Nyrhinen S, Mäkinen H, Isomäki P, Uotila T, Sokka T. FRI0057 Two Thirds of Patients with Early Rheumatoid Arthritis (ERA) Meet DAS28 Remission at 3 Months-Results from the Finnish Early Rheumatoid Arthritis Study (FIN-ERA). Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3010] [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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Aaltonen KJ, Joensuu JT, Virkki L, Sokka T, Aronen P, Relas H, Valleala H, Rantalaiho V, Pirilä L, Puolakka K, Uusitalo T, Blom M, Konttinen YT, Nordström D. Rates of serious infections and malignancies among patients with rheumatoid arthritis receiving either tumor necrosis factor inhibitor or rituximab therapy. J Rheumatol 2015; 42:372-8. [PMID: 25593230 DOI: 10.3899/jrheum.140853] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE Because of the role of tumor necrosis factor (TNF) in host defense, it was hypothesized that its inhibition might lead to an increased risk of malignancies and infections. The objective of our study was to assess the incidence of serious infections leading to hospitalization and malignancies among patients with rheumatoid arthritis (RA) receiving either TNF inhibitor or rituximab (RTX) therapy. METHODS The study population was identified from the National Register for Biologic Treatment in Finland and the hospital records of Central Finland Central Hospital for conventional disease-modifying antirheumatic drug (cDMARD) users. Data on infections and malignancies were acquired from national healthcare registers. A Poisson model was used to calculate the adjusted incidence rate ratios (aIRR) and was composed of age, sex, time from diagnosis, year of the beginning of the followup, rheumatoid factor status, Disease Activity Score at 28 joints, Health Assessment Questionnaire, prior malignancy, prior serious infection, prior biologic use, and time-updated use of methotrexate, sulfasalazine, hydroxychloroquine, and oral corticosteroids as confounders. RESULTS In total, during the followup of 10,994 patient-years, 92 malignancies and 341 serious infections were included in the analyses. The aIRR of infections compared to cDMARD users were 1.2 (95% CI 0.63-2.3), 0.84 (95% CI 0.53-1.3), 0.98 (95% CI 0.60-1.6), and 1.1 (95% CI 0.59-1.9) for the patients treated with infliximab (IFX), etanercept, adalimumab, and RTX, respectively. The crude rates of malignancies were highest among the users of cDMARD and RTX, and lowest among patients treated with IFX with no differences in aIRR. CONCLUSION Our results provide some reassurance of the safety of biologic treatments in the treatment of RA.
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Affiliation(s)
- Kalle Jyri Aaltonen
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital.
| | - Jaana Tuulikki Joensuu
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Liisa Virkki
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Tuulikki Sokka
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Pasi Aronen
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Heikki Relas
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Heikki Valleala
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Vappu Rantalaiho
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Laura Pirilä
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Kari Puolakka
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Tea Uusitalo
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Marja Blom
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Yrjö Tapio Konttinen
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
| | - Dan Nordström
- From the University of Helsinki, and the Helsinki University Central Hospital, Helsinki; Jyväskylä Central Hospital, Jyväskylä; Tampere University Hospital, Tampere; Turku University Central Hospital, Turku; South Karelia Central Hospital, Lappeenranta; Kanta-Häme Central Hospital, Hämeenlinna, Finland.K.J. Aaltonen, MSc (pharm); J.T. Joensuu, MSc (pharm); L. Virkki, MSc (pharm); P. Aronen, MSc; M. Blom, PhD, Professor, University of Helsinki; T. Sokka, MD, PhD, Adj. Professor, Jyväskylä Central Hospital; H. Relas, MD, PhD; H. Valleala, MD, PhD, Adj. Professor, Helsinki University Central Hospital; V. Rantalaiho, MD, PhD, Tampere University Hospital; L. Pirilä, MD, PhD, Turku University Central Hospital; K. Puolakka, MD, PhD, Adj. Professor, South Karelia Central Hospital; T. Uusitalo, MD, Kanta-Häme Central Hospital; Y.T. Konttinen, MD, PhD, Professor; D. Nordström, MD, PhD, Adj. Professor, University of Helsinki, and the Helsinki University Central Hospital
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Martikainen MH, Hohenthal U, Pirilä L, Kemppainen J. Constant high adrenal FDG uptake in PET/CT associated with mitochondrial disease. J Inherit Metab Dis 2014; 37:863-4. [PMID: 24554338 DOI: 10.1007/s10545-014-9685-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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] [Received: 12/20/2013] [Revised: 01/17/2014] [Accepted: 01/27/2014] [Indexed: 11/25/2022]
Abstract
We describe a patient with the m.3243A>G mitochondrial DNA mutation who developed sepsis caused by Streptococcus constellatus. In the acute phase of illness, abnormally high uptake of (18)F-FDG was observed in both adrenal glands that appeared anatomically normal. In repeated imaging six months later the adrenal uptake had diminished but remained clearly elevated. We did not observe high adrenal FDG uptake as in the patient described here among 30 patients with Staphylococcus aureus sepsis that were investigated with identical imaging protocol. In sepsis, oxygen consumption and metabolic rate are increased compared to normal metabolism. The observed high adrenal FDG uptake during sepsis in this patient probably reflects the acute metabolic stress induced by the infection. Interestingly, in repeated imaging six months later, the adrenal SUVs had diminished but were still abnormally high: this suggests constant high levels of metabolic stress associated with the mitochondrial disorder.
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Affiliation(s)
- Mika H Martikainen
- Division of Clinical Neurosciences, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520, Turku, Finland,
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Salomäki SP, Kemppainen J, Aho H, Hohenthal U, Kain R, Koivuviita N, Badeau RM, Seppänen M, Silvoniemi A, Roivainen A, Pirilä L. Widespread vascular inflammation in a patient with antineutrophil cytoplasmic antibody-associated vasculitis as detected by positron emission tomography. Eur J Nucl Med Mol Imaging 2014; 41:2167-8. [PMID: 25034437 DOI: 10.1007/s00259-014-2847-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 06/24/2014] [Indexed: 11/24/2022]
Affiliation(s)
- Soile P Salomäki
- Division of Medicine, Turku University Hospital, P.O. Box 52, FI-20521, Turku, Finland
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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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Pirilä L, Söderström KO, Hietarinta M, Jalava J, Kytö V, Toivanen A. Fatal myocardial necrosis caused by Staphylococcus lugdunensis and cytomegalovirus in a patient with scleroderma. J Clin Microbiol 2006; 44:2295-7. [PMID: 16757644 PMCID: PMC1489446 DOI: 10.1128/jcm.00002-06] [Citation(s) in RCA: 9] [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: 11/20/2022] Open
Abstract
A 42-year-old woman developed a rapidly progressing fatal heart failure. At the autopsy extensive necrosis of the myocardium was seen, with an almost complete absence of inflammatory cells and the presence of bacterial structures identified as Staphylococcus lugdunensis by PCR. In addition, the cytomegalovirus genome was found to be located inside the cardiomyocytes.
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Affiliation(s)
- Laura Pirilä
- Department of Medicine, University of Turku, Turku, Finland
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Salminen-Mankonen H, Säämänen AM, Jalkanen M, Vuorio E, Pirilä L. Syndecan-1 expression is upregulated in degenerating articular cartilage in a transgenic mouse model for osteoarthritis. Scand J Rheumatol 2006; 34:469-74. [PMID: 16393771 DOI: 10.1080/03009740500304338] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [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: 10/25/2022]
Abstract
OBJECTIVE Mice heterozygous for the Del1 transgene locus with a short deletion mutation in the type II collagen gene develop early-onset degenerative changes in the knee joints that progress to end-stage osteoarthritis by the age of 12-15 months. This study focuses on the expression and distribution of syndecan-1, a cell-surface heparan sulfate proteoglycan, during the development of osteoarthritic cartilage degeneration, to better understand its role in this disease. METHODS Northern analyses of total RNA extracted from knee joints of transgenic Del1 mice and their nontransgenic controls were used to monitor changes in syndecan-1 mRNA levels during development, growth, ageing, and cartilage degeneration. Immunohistochemistry was used to study the distribution of syndecan-1 in the knee joints at different stages of cartilage degeneration. RESULTS Syndecan-1 mRNA was present in knee joints throughout life, with the highest mRNA levels in ageing knee joints. In Del1 mice, a transient upregulation of syndecan-1 mRNA synthesis was observed at the age of 6 months coinciding with early stages of cartilage degeneration and a period of attempted repair. Immunostaining for syndecan-1 was most intense in chondrocytes of superficial and intermediate zones of articular cartilage adjacent to defect areas. Chondrocyte clusters also stained strongly for syndecan-1. CONCLUSION The present temporospatial expression data on upregulation of syndecan-1 in articular cartilage during early stages of cartilage degeneration suggest that this molecule is involved in the attempted repair of cartilage fibrillations. Combined with the known role of syndecan-1 during skeletal development and wound healing, this interesting finding warrants further validation.
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Pirilä L, Aho H, Roivainen A, Konttinen YT, Pelliniemi LJ, Heino J. Identification of alpha6beta1 integrin positive cells in synovial lining layer as type B synoviocytes. J Rheumatol 2001; 28:478-84. [PMID: 11296945] [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: 02/19/2023]
Abstract
OBJECTIVE In rheumatoid arthritis (RA) the synovial lining is responsible for cartilage destruction. Laminin is one of the major matrix molecules surrounding the lining cells. We investigated the laminin adhesion mechanism of synovial lining cells by analyzing the presence of its receptor, alpha6beta1 integrin, on type A and type B synoviocytes. METHODS The alpha6 integrin subunit and a macrophage marker were simultaneously localized by immunohistochemistry in 29 RA derived, 6 osteoarthritis derived, and 2 healthy synovial samples by light and electron microscopy. We also used enzyme treatments to release cells from synovial tissue samples and localized the same antigens on adherent cells. RESULTS The alpha6beta1 integrin positive cells were localized in basal areas of the lining layer and many of them were negative for the macrophage markers. By immunolabeling electron microscopy the alpha6 integrin positive cells were confirmed to represent the fibroblast-like type B cells. Further, in freshly isolated synoviocyte cultures the type B cells were positive for alpha6 integrin, whereas all other cell types were negative for this laminin receptor. CONCLUSION Integrin alpha6beta1 is known to be a laminin receptor of endothelial cells, adipocytes, and macrophages, not usually expressed on fibroblasts. However, in synovial lining layer it is expressed on fibroblastic type B cells, but the macrophage population is negative. The unique characteristics of synovial lining cells distinguish them from other connective tissue cells and must be taken into account in all considerations of the pathogenic mechanisms of rheumatoid disease.
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Affiliation(s)
- L Pirilä
- MediCity Research Laboratory, Medical Biochemistry, University of Turku, Finland.
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Li TF, Xu JW, Santavirta S, Takagi M, Virtanen I, Pirilä L, Konttinen YT. Expression of vitronectin and its integrin receptors in the synovial membrane-like interface tissue from aseptic loosening of total hip replacement. J Rheumatol 2000; 27:727-34. [PMID: 10743817] [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: 02/16/2023]
Abstract
OBJECTIVE To investigate expression of vitronectin (VN) and its integrin (Int) receptors in synovial membrane-like interface tissue (SMLIT) in aseptic loosening of total hip replacement (THR), and the potential role of VN-Int interaction in production of collagenase-3. METHODS Avidin-biotin-peroxidase complex (ABC) staining was used to detect distribution of VN and Int alphaV, beta3, and beta5 subunits. Immunofluorescence labeling with FITC and TRITC conjugated IgG was used to localize Int beta3 subunit and matrix metalloproteinase (MMP-13) double positive cells in SMLIT. RESULTS Intensive VN immunoreactivity was found in the lining-like layers, sublining area, and endothelium of SMLIT. Statistical analysis of the VN staining score revealed a significant difference between SMLIT and control synovial membrane. All 3 Int subunits appeared in the lining-like layers and sublining area. The Int beta3 subunit was also detected in giant cells of SMLIT. Int beta5 subunit staining was relatively weak and rarely found in vascular endothelium. Immunofluorescence labeling showed many double positive cells in the lining-like layer and sublining area of SMLIT. CONCLUSION Expressions of VN and Int alphaVbeta3 and alphaVbeta5 are increased in SMLIT compared with that in OA synovial membrane. Int alphaVbeta3 engagement with VN might play a potential role in local MMP-13 production in SMLIT.
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Affiliation(s)
- T F Li
- Department of Anatomy, Institute of Biomedicine, University of Helsinki, Helsinki University Central Hospital, Finland
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Roivainen A, Pirilä L, Yli-Jama T, Laaksonen H, Toivanen P. Expression of the myc-family proto-oncogenes and related genes max and mad in synovial tissue. Scand J Rheumatol 1999; 28:314-8. [PMID: 10568429 DOI: 10.1080/03009749950155517] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [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: 10/17/2022]
Abstract
OBJECTIVE To examine the expression of myc proto-oncogenes; c-myc, L-myc, and N-myc, and their related genes max and mad, in the arthritic synovium. METHODS Using reverse transcription-polymerase chain reaction (RT-PCR), Northern and Southern hybridizations, the expression of these genes in the synovial tissue from rheumatoid arthritis (RA) and osteoarthritis (OA) was analyzed. Synovial specimens from cadavers without any joint disease and peripheral blood mononuclear cells (PBMC) from healthy individuals served as controls. RESULTS As a novel finding, synovial cells were observed to express L-myc, N-myc as well as their related genes max and mad, in addition to the previously described presence of c-myc proto-oncogene in synovium. c-myc, L-myc, N-myc, and mad were expressed in all patient samples studied, including the controls. Instead, max was detected in only 10/12 of RA patients, in 11/13 of OA patients, and in all controls (4/4 cadavers, 5/5 blood donors). Six patients with RA revealed positive signals for max only after hybridization. The same was also true of two patients with OA and of one healthy individual donating blood. CONCLUSIONS The L-myc, N-myc, max, and mad genes are expressed in synovial cells, in addition to c-myc proto-oncogene. However, expression of these genes is not disease-specific, since they were equally expressed in synovial samples from patients with RA or OA as well as from cadavers representing controls without any joint disease.
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Affiliation(s)
- A Roivainen
- Turku Immunology Centre, Department of Medical Microbiology, Turku University, Finland
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Konttinen YT, Li TF, Xu JW, Tagaki M, Pirilä L, Silvennoinen T, Santavirta S, Virtanen I. Expression of laminins and their integrin receptors in different conditions of synovial membrane and synovial membrane-like interface tissue. Ann Rheum Dis 1999; 58:683-90. [PMID: 10531072 PMCID: PMC1752798 DOI: 10.1136/ard.58.11.683] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [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: 11/03/2022]
Abstract
OBJECTIVE To demonstrate the expression of laminins (Lns) and their integrin (Int) receptors in different synovial samples and synovial membrane-like interface tissues from well fixed and aseptically loosened total hip replacement (THR), and the potential role of Ln-Int interaction in the production of collagenases and cytokines. METHODS Immunohistochemical staining was done to detect the distribution of EHS Ln, Ln alpha2, alpha3, alpha5, beta1, beta2 chains and Int alpha1, alpha2, alpha3, alpha6, beta1, beta4 subunits in different samples. Double immunofluorescence labelling was used to find colocalisation of Int alpha6 subunit and collagenase-1/collagenase-3/TNFalpha/IL6. RESULTS General Ln immunoreactivity was detected in all specimens. Ln alpha5, beta1 and beta2, but not alpha2 and alpha3 chains were seen in the synovial lining and the basement membrane of blood vessels with the intensity/extent of labelling in the following rank order: rheumatoid arthritis (RA) loosened prostheses, osteoarthritis, well fixed prostheses, traumatic knees. Among Int subunits, staining for beta1 was usually the strongest, followed by staining for Int alpha6, alpha1, alpha3, and alpha2 subunits, with the same rank order for overall expression of Lns. Int beta4 subunit was not detectable in most of the specimens. Double labelling focused on Int alpha6 subunit disclosed its frequent colocalisation with collagenases 1 and 3 and with tumour necrosis factor alpha and interleukin 6 in synovial lining. CONCLUSION Synovial lining contains Ln-10, Ln-11, and Int alpha6beta1 and alpha1beta1 receptors. In aseptic loosening of THR, interface tissue has a similar Ln subtype and Int receptor composition as RA synovium, which confirms its "lining-like" phenotype. Synovial lining does not contain Ln-5 (alpha3beta3gamma2) or Int alpha6beta4, which are components of epithelial hemidesmosomes. The expression of Lns and their Int receptors is upregulated in inflammation. The close spatial relation between Ln and its Int receptors in synovial lining cells containing proteinases and cytokines suggests a potential role in joint destruction and prosthetic loosening.
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Affiliation(s)
- Y T Konttinen
- Department of Medicine, Helsinki University Central Hospital, Helsinki, Finland
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Abstract
OBJECTIVE To examine mutational activation of ras proto-oncogenes in synovial tissue from patients with rheumatoid arthritis (RA) compared with synovial specimens from patients with osteoarthritis (OA) or other arthropathies. Synovial samples from cadavers, without any signs of joint disease, were used as control material. METHODS Using a combination of polymerase chain reaction (PCR) and automated sequencing of the amplified PCR product, regions around codons 12, 13, and 61 of the H-, K-, and N-ras proto-oncogenes were analyzed. Confirmation of mutations was based on restriction fragment length polymorphism analysis and/or oligonucleotide hybridization. RESULTS Four (6%) of 72 patients with RA, 2 (13%) of 16 with OA, and 1 (8%) of 12 with other arthropathies harbored mutant H-ras proto-oncogenes, and were heterozygous at codon 13 for the GGT-->GAT (Gly-->Asp) change. An unexpected mutation was found in the H-ras gene, in which a heterozygous GTG-->ATG (Val-->Met) mutation was observed over codon 14. The incidence for this mutation was 39% (28 of 72) in RA patients, 94% (15 of 16) in OA patients, and 42% (5 of 12) in patients with other arthropathies. All samples carrying the codon 13 mutation of H-ras were also codon 14-mutated, i.e., double mutations existed. Identical point mutations were also detected in a few synovial specimens obtained from cadavers (n = 8), including a single case of double mutation. All specimens showed normal K- and N-ras loci. CONCLUSION Activation of proto-oncogene H-ras by point mutation in codons 13 and 14 occurred in the synovial tissue of patients with RA, OA, or other arthropathies, as well as, to some extent, in the control synovia, indicating that the phenomenon is not specific for RA. In codon 14, incidence of the H-ras point mutation was highest in OA tissue. The possible significance of this codon 14-mutated H-ras gene needs to be clarified.
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Abstract
Bone morphogenetic proteins (BMPs) are a group of peptide growth factors closely related to transforming growth factors-beta. The BMPs are suggested to play an essential role in bone development and they are strong candidate molecules to be used clinically to improve fracture healing. BMPs are also involved in the differentiation of several other tissues during embryogenesis. Here, we show that human recombinant BMP-2 regulates cell-matrix interactions by modifying the expression of integrin-type receptors. The synthesis of alpha3 integrin was down-regulated by BMP-2 in two osteogenic sarcoma-derived cell lines, Saos-2 and HOS, and also in human fetal chondrocytes. BMP-2 had no effect on the expression of alpha1, alpha2, alpha5, alpha6, and alphaV integrins. BMP-2 reduced the expression of alpha3 integrin subunit at mRNA level. Laminin-5 was shown to be the ligand for alpha3beta1 integrin on Saos cells and BMP-2 decreased the ability of Saos cells to attach to it. These results suggest that BMP-2 has a specific effect on the alpha3beta1 integrin-mediated cell adhesion to laminin-5. Given the fact that BMP-2 is expressed in osteosarcomas, in addition to in bone, this mechanism is putatively important especially in bone development and tumors. We also studied the effect of BMP-2 on a human keratinocyte cell line, HaCaT. In HaCaT cells, the expression of alpha2 integrin was strongly down-regulated by BMP-2, whereas its effect on the expression of alpha3 integrin was smaller. We suggest that the effects of BMP-2 may be partially mediated by specifically altered cell adhesion.
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Affiliation(s)
- L Nissinen
- Department of Medical Biochemistry and MediCity Research Laboratory, University of Turku, Finland
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Pirilä L, Heino J. Altered integrin expression in rheumatoid synovial lining type B cells: in vitro cytokine regulation of alpha 1 beta 1, alpha 6 beta 1, and alpha v beta 5 integrins. J Rheumatol 1996; 23:1691-8. [PMID: 8895142] [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: 02/02/2023]
Abstract
OBJECTIVE We recently showed that in rheumatoid arthritis (RA) the extracellular matrix around the lining cells is similar to the matrix seen in osteoarthritis, whereas the cellular adhesion apparatus is very different. In hyperplastic synovial membrane there is very little of alpha 6, alpha v, and beta 5 integrin subunits, whereas in noninflammatory synovial membrane these integrins are well expressed. We studied how expression of these cell adhesion molecules is regulated in RA in vitro. METHODS The integrin expression in 6 different synovial fibroblast strains representing the type B cells and in THP-1 cell line was examined by immunoprecipitation, flow cytometry, and Northern hybridization. RESULTS Proinflammatory cytokines, especially interleukin 1 beta, increased the expression of alpha 1 integrin in synovial fibroblasts. When the monocyte-like THP-1 cells were induced to differentiate to adherent macrophages they started to express alpha 6 and beta 5 integrin subunits. In adherent THP-1 cells the expression of integrin alpha 6 subunit was strongly enhanced by transforming growth factor-beta and downregulated by the combination of tumor necrosis factor-alpha and interferon-gamma. CONCLUSION Cytokines regulate the cell adhesion molecules of synovial fibroblasts and mononuclear phagocytes in vitro causing alterations in integrin expression similar to the ones seen in rheumatoid synovium in vivo.
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Affiliation(s)
- L Pirilä
- Department of Medical Biochemistry, MediCity Research Laboratory, University of Turku, Finland
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Roivainen A, Söderström KO, Pirilä L, Aro H, Kortekangas P, Merilahti-Palo R, Yli-Jama T, Toivanen A, Toivanen P. Oncoprotein expression in human synovial tissue: an immunohistochemical study of different types of arthritis. Br J Rheumatol 1996; 35:933-42. [PMID: 8883430 DOI: 10.1093/rheumatology/35.10.933] [Citation(s) in RCA: 32] [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] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Based on the fact that synovial lining cells have some properties of transformed-appearing cells, we have examined the expression of Myc, Myb, Fos, Jun and Ras oncoproteins in synovial tissues from patients with different types of arthritis. Formalin-fixed and paraffin-embedded sections of synovial tissue from 12 patients with rheumatoid arthritis (RA), 14 with reactive arthritis (ReA), nine with other seronegative arthritis (OSA), seven with bacterial arthritis (BA), eight with probable bacterial arthritis (PBA) and eight with osteoarthritis (OA) were studied using the immunoperoxidase staining technique. The oncoproteins studied were expressed both in the synovial lining layer and in the sublining layer, consisting of lymphocytes, other inflammatory cells and blood vessels. Among the six disease entities, RA and OA appeared to be the most distinct, whereas the results obtained for ReA and OSA, and on the other hand for BA and PBA, closely resembled each other. The expression of Myc, Myb, Fos and Jun was significantly correlated both to the degree of synovial hypercellularity and the synovial lymphocytic infiltration. For Ras, such a correlation could not be seen. We conclude that we find no evidence of a cell lineage-specific or a disease-specific abnormality of proto-oncogene products in RA, and the expression of these oncoproteins is consistent with inflammation rather than with any primary abnormality of cell growth.
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Affiliation(s)
- A Roivainen
- Turku Immunology Centre, Department of Medical Microbiology, Turku University, Finland
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Lappalainen K, Pirilä L, Jääskeläinen I, Syrjänen K, Syrjänen S. Effects of liposomal antisense oligonucleotides on mRNA and protein levels of the HPV 16 E7 oncogene. Anticancer Res 1996; 16:2485-92. [PMID: 8917339] [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: 02/03/2023]
Abstract
Despite the known association of human papillomavirus (HPV) infection with cervical cancer there is no specific antiviral treatment for HPV infection. Antisense oligode-oxynucleotides (AS-ODNs) may offer an effective way to treat HPV infections as the stability and delivery have been improved using modified ODNs or carrier systems. In this study we investigated the effects of liposomal AS-ODNs (0.1, 1 and 5 microM) on HPV 16 E7 mRNA and protein levels in CaSki cells. We used cationic liposomes (10 microM) containing dimethyldioctadecylammonium bromide (DDAB) or 2,3-dioleyloxy-N-[2(sperminecar-boxamido)ethyl]-N, N-dimethyl-1-propanaminium trifluoroacetate (DOSPA). Both these liposomes had dioleoylphosphatidyl-ethanolamine (DOPE) as a helper lipid. The target of the AS-ODNs was E7 protein because it is the one of the two oncoproteins of HPV 16. Only liposomal AS-ODNs which were targeted to the initiation codon of E7, had an effect on E7 mRNA expression; two shorter transcripts were detected, suggesting that RNase H degradation was activated. Liposomal random ODN or liposomal ODN targeted downstream from the initiation site of E7 did not affect the mRNA pattern. However, no change was found in the E7 protein levels detected by immunoprecipitation. Further studies showed that AS-ODNs inhibited the translation of E7 mRNA in a rabbit reticulocyte lysate assay. This data, together with the changes in mRNA levels, proved that the AS-ODNs reached the target mRNA. One possible explanation for the unchanged protein level of E7 in CaSki cells might be that immunoprecipitation is not sensitive enough to detect minor changes in protein levels. However, further progress is still needed in the field of carrier systems and modifications of AS-ODNs before non-sequence specific effects can be avoided.
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Affiliation(s)
- K Lappalainen
- MediCity Research Laboratory, Faculty of Medicine, University of Turku, Finland
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Pirilä V, Kilpiö O, Olkkonen A, Pirilä L, Siltanen E. On the chemical nature of the eczematogens in oil of turpentine. V. Pattern of sensitivity to different terpenes. Dermatologica 1969; 139:183-94. [PMID: 5808469 DOI: 10.1159/000253912] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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