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Quist-Paulsen P, Toft N, Heyman M, Abrahamsson J, Griškevičius L, Hallböök H, Jónsson ÓG, Palk K, Vaitkeviciene G, Vettenranta K, Åsberg A, Frandsen TL, Opdahl S, Marquart HV, Siitonen S, Osnes LT, Hultdin M, Overgaard UM, Wartiovaara-Kautto U, Schmiegelow K. T-cell acute lymphoblastic leukemia in patients 1–45 years treated with the pediatric NOPHO ALL2008 protocol. Leukemia 2019; 34:347-357. [DOI: 10.1038/s41375-019-0598-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 09/16/2019] [Accepted: 09/30/2019] [Indexed: 01/16/2023]
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2
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Kalima K, Lehtoranta L, He L, Pitkäniemi J, Lundell R, Julkunen I, Roivainen M, Närkiö M, Mäkelä MJ, Siitonen S, Korpela R, Pitkäranta A. Probiotics and respiratory and gastrointestinal tract infections in Finnish military conscripts - a randomised placebo-controlled double-blinded study. Benef Microbes 2016; 7:463-71. [PMID: 27048835 DOI: 10.3920/bm2015.0172] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Military conscripts are susceptible to respiratory and gastrointestinal tract infections. In previous studies probiotics have shown potency to reduce upper respiratory and gastrointestinal infections. The aim was to study whether probiotic intervention has an impact on seasonal occurrence of upper respiratory and gastrointestinal infections in two different conscript groups. In a randomised, double-blinded, placebo controlled study (https://clinicaltrials.gov NCT01651195), a total of 983 healthy adults were enrolled from two intakes of conscripts. Conscripts were randomised to receive either a probiotic combination of Lactobacillus rhamnosus GG (LGG) and Bifidobacterium animalis ssp. lactis BB12 (BB12) or a control chewing tablet twice daily for 150 days (recruits) or for 90 days (reserve officer candidates). Clinical examinations were carried out and daily symptom diaries were collected. Outcome measures were the number of days with respiratory and gastrointestinal symptoms and symptom incidence, number and duration of infection episodes, number of antibiotic treatments received and number of days out of service because of the infection. Statistically no significant differences were found between the intervention groups either in the risk of symptom incidence or duration. However, probiotic intervention was associated with reduction of specific respiratory infection symptoms in military recruits, but not in reserve officer candidates. Probiotics did not significantly reduce overall respiratory and gastrointestinal infection morbidity.
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Affiliation(s)
- K Kalima
- 1 Centre for Military Medicine, Research and Development Department, Finnish Defence Forces, Tukholmankatu 8A, P.O. Box 50, 00301 Helsinki, Finland.,2 Faculty of Medicine, Otorhinolaryngology, University of Helsinki and University Central Hospital, Haartmaninkatu 4, P.O. Box 220, 00029 HUS, Helsinki, Finland
| | - L Lehtoranta
- 3 Faculty of Medicine, Pharmacology, Medical Nutrition Physiology, University of Helsinki, Haartmaninkatu 8, P.O. Box 63, 00014 University of Helsinki, Finland
| | - L He
- 4 Department of Public Health, University of Helsinki, Mannerheimintie 172, P.O. Box 41, 00014 Helsinki, Finland
| | - J Pitkäniemi
- 4 Department of Public Health, University of Helsinki, Mannerheimintie 172, P.O. Box 41, 00014 Helsinki, Finland.,5 Finnish Cancer Registry, Institute for Statistical and Epidemiological Cancer Research, Unioninkatu 22, 00130 Helsinki, Finland
| | - R Lundell
- 6 Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, P.O. Box 63, 00014 Helsinki, Finland
| | - I Julkunen
- 7 Virology Unit, National Institute for Health and Welfare, P.O. Box 30, 00271 Helsinki, Finland.,8 Department of Virology, University of Turku, Kiinamyllynkatu 13, 20520 Turku, Finland
| | - M Roivainen
- 7 Virology Unit, National Institute for Health and Welfare, P.O. Box 30, 00271 Helsinki, Finland
| | - M Närkiö
- 9 Mehiläinen Ltd., Pohjoinen Hesperiankatu 17 C, 00260 Helsinki, Finland
| | - M J Mäkelä
- 10 Skin and Allergy Hospital, Helsinki University Hospital and University of Helsinki, Meilahdentie 2, P.O. Box 160, 00029 HUS Helsinki, Finland
| | - S Siitonen
- 1 Centre for Military Medicine, Research and Development Department, Finnish Defence Forces, Tukholmankatu 8A, P.O. Box 50, 00301 Helsinki, Finland
| | - R Korpela
- 3 Faculty of Medicine, Pharmacology, Medical Nutrition Physiology, University of Helsinki, Haartmaninkatu 8, P.O. Box 63, 00014 University of Helsinki, Finland
| | - A Pitkäranta
- 2 Faculty of Medicine, Otorhinolaryngology, University of Helsinki and University Central Hospital, Haartmaninkatu 4, P.O. Box 220, 00029 HUS, Helsinki, Finland.,6 Faculty of Medicine, University of Helsinki, Haartmaninkatu 8, P.O. Box 63, 00014 Helsinki, Finland
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Lacombe F, Bernal E, Bloxham D, Couzens S, Porta MGD, Johansson U, Kern W, Macey M, Matthes T, Morilla R, Paiva A, Palacio C, Preijers F, Ratei R, Siitonen S, Allou K, Porwit A, Béné MC. Harmonemia: a universal strategy for flow cytometry immunophenotyping-A European LeukemiaNet WP10 study. Leukemia 2016; 30:1769-72. [PMID: 26922887 DOI: 10.1038/leu.2016.44] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- F Lacombe
- Hematology Laboratory, Bordeaux University Hospital, Bordeaux, France
| | - E Bernal
- Douglass Hanly Moir Pathology, Sonic Healthcare, Sydney, New South Wales, Australia
| | - D Bloxham
- Department of Haematology, Addenbrookes Hospital, Cambridge, UK
| | - S Couzens
- Immunophenotyping Laboratory, Cardiff University, Cardiff, UK
| | - M G D Porta
- Department of Hematology Oncology, University of Pavia and IRCCS Policlinico San Matteo, Pavia, Italy
| | - U Johansson
- Flow Cytometry Laboratory, Bristol Royal Infirmary, Bristol, UK
| | - W Kern
- München Leukemia Labor, Munich, Germany
| | - M Macey
- St Bartholomew's and Royal London School of Medicine and Dentistry, London, UK
| | - T Matthes
- Hematology Laboratory, Geneva University Hospital, Geneva, Switzerland
| | - R Morilla
- The Institute of Cancer Research, Royal Cancer Hospital, London, UK
| | - A Paiva
- Flow Cytometry Unit, Clinical Pathology Service, Coimbra University Hospital Centre, Coimbra, Portugal
| | - C Palacio
- Department of Hematology, Hospital Universitario Vall d'Hebron, Barcelona, Spain
| | - F Preijers
- Department of Laboratory Medicine-Laboratory for Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - R Ratei
- Department of Hematology and Oncology, Helios Klinikum Berlin Buch, Berlin, Germany
| | - S Siitonen
- Laboratory Services (HUSLAB), University Central Hospital, University of Helsinki, Helsinki, Finland
| | - K Allou
- Hematology Laboratory, Bordeaux University Hospital, Bordeaux, France
| | - A Porwit
- Department of Pathobiology and Laboratory Medicine, University of Toronto, University Health Network, Toronto General Hospital, Toronto, Ontario, Canada
| | - M C Béné
- Hematology Laboratory, Nantes University Hospital, Nantes, France
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Oo SZ, Siitonen S, Kontturi V, Eustace DA, Charlton MDB. Disposable gold coated pyramidal SERS sensor on the plastic platform. Opt Express 2016; 24:724-31. [PMID: 26832301 DOI: 10.1364/oe.24.000724] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this paper we investigate suitability of arrays of gold coated pyramids for surface-enhanced Raman scattering (SERS) sensing applications. Pyramidarrays composed of 1000 nm pit size with 1250 nm pitch lengthwerereplicated on a plastic substrate by roll-to-roll (R2R) ultraviolet (UV) embossing. The level of SERS enhancement, and qualitative performance provided by the new substrate is investigated by comparing Raman spectrum of benzenethiol (BTh) test molecules to the benchmark Klarite SERS substrate which comprises inverted pyramid arrays(1500 nm pit size with 2000 nm pitch length) fabricated on a silicon substrate. The new substrate is found to provide upto 11 times increase in signal in comparison to the inverted pyramid (IV-pyramid) arrays fabricated on an identical plastic substrate. Numerical simulation and experimental evidence suggest that strongly confined electromagnetic fields close to the base of the pyramids, are mainly responsible for the Raman enhancement factor, instead of the fields localized around the tip. Unusually strong plasmon fields are projected upto 200nm from the sidewalls at the base of the pyramid increasing the cross sectional sensing volume.
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Uusitalo S, Kögler M, Välimaa AL, Popov A, Ryabchikov Y, Kontturi V, Siitonen S, Petäjä J, Virtanen T, Laitinen R, Kinnunen M, Meglinski I, Kabashin A, Bunker A, Viitala T, Hiltunen J. Detection of Listeria innocua on roll-to-roll produced SERS substrates with gold nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra08313g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The rapid and accurate detection of food pathogens plays a critical role in the early prevention of foodborne epidemics. Combination of low cost sensing platforms and SERS detection can offer a solution for the pathogen detection.
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Silvennoinen R, Lundan T, Kairisto V, Pelliniemi TT, Putkonen M, Anttila P, Huotari V, Mäntymaa P, Siitonen S, Uotila L, Penttilä TL, Juvonen V, Selander T, Remes K. Comparative analysis of minimal residual disease detection by multiparameter flow cytometry and enhanced ASO RQ-PCR in multiple myeloma. Blood Cancer J 2014; 4:e250. [PMID: 25303369 PMCID: PMC4220647 DOI: 10.1038/bcj.2014.69] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Accepted: 08/28/2014] [Indexed: 01/02/2023] Open
Abstract
Multiparameter flow cytometry (MFC) and allele-specific oligonucleotide real-time quantitative PCR (ASO RQ-PCR) are the two most sensitive methods to detect minimal residual disease (MRD) in multiple myeloma (MM). We compared these methods in 129 paired post-therapy samples from 22 unselected, consecutive MM patients in complete/near complete remission. Appropriate immunophenotypic and ASO RQ-PCR-MRD targets could be detected and MRD analyses constructed for all patients. The high PCR coverage could be achieved by gradual widening of the primer sets used for clonality detection. In addition, for 13 (55%) of the patients, reverse orientation of the ASO primer and individual design of the TaqMan probe improved the sensitivity and specificity of ASO RQ-PCR analysis. A significant nonlinear correlation prevailed between MFC-MRD and PCR-MRD when both were positive. Discordance between the methods was found in 32 (35%) paired samples, which were negative by MFC-MRD, but positive by ASO RQ-PCR. The findings suggest that with the described technique, ASO RQ-PCR can be constructed for all patients with MM. ASO RQ-PCR is slightly more sensitive in MRD detection than 6-10-color flow cytometry. Owing to technical demands ASO RQ-PCR could be reserved for patients in immunophenotypic remission, especially in efficacy comparisons between different drugs and treatment modalities.
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Affiliation(s)
- R Silvennoinen
- 1] Department of Medicine, Tampere University Hospital, Tampere, Finland [2] Department of Medicine and Hematology, Kuopio University Hospital, Kuopio, Finland
| | - T Lundan
- TYKSLAB, Laboratory of Molecular Genetics, Turku University Hospital, Turku, Finland
| | - V Kairisto
- TYKSLAB, Laboratory of Molecular Genetics, Turku University Hospital, Turku, Finland
| | - T-T Pelliniemi
- 1] Fimlab Medical Laboratories Ltd, Tampere University Hospital, Tampere, Finland [2] Department of Clinical Chemistry, Turku University, Turku, Finland
| | - M Putkonen
- Department of Internal Medicine, Turku University Hospital, Turku University, Turku, Finland
| | - P Anttila
- Helsinki University Hospital, Helsinki, Finland
| | - V Huotari
- 1] NordLab Oulu, Oulu University Hospital, Oulu, Finland [2] Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
| | - P Mäntymaa
- Laboratory of Eastern Finland, Kuopio University Hospital, Kuopio, Finland
| | - S Siitonen
- HUSLAB, Laboratory of Clinical Chemistry, Helsinki University Hospital, Helsinki, Finland
| | - L Uotila
- HUSLAB, Laboratory of Clinical Chemistry, Helsinki University Hospital, Helsinki, Finland
| | - T-L Penttilä
- TYKSLAB, Laboratory of Clinical Haematology, Turku University Hospital, Turku, Finland
| | - V Juvonen
- TYKSLAB, Laboratory of Molecular Genetics, Turku University Hospital, Turku, Finland
| | - T Selander
- Science Services Center, Kuopio University Hospital, Kuopio, Finland
| | - K Remes
- Department of Internal Medicine, Turku University Hospital, Turku University, Turku, Finland
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Nupponen I, Kuuliala A, Siitonen S, Repo H, Kuuliala K. Cord Blood Monocytes, Neutrophils and Lymphocytes from Preterm and Full-Term Neonates Show Multiple Aberrations in Signalling Profiles Measured Using Phospho-Specific Whole-Blood Flow Cytometry. Scand J Immunol 2013; 78:426-38. [DOI: 10.1111/sji.12094] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Accepted: 06/25/2013] [Indexed: 11/29/2022]
Affiliation(s)
- I. Nupponen
- Department of Bacteriology and Immunology; Haartman Institute; University of Helsinki; Helsinki Finland
- Department of Neonatology; Hospital for Children and Adolescents; Helsinki University Central Hospital; Helsinki Finland
| | - A. Kuuliala
- Department of Bacteriology and Immunology; Haartman Institute; University of Helsinki; Helsinki Finland
| | - S. Siitonen
- Laboratory Services (HUSLAB); Helsinki University Central Hospital; Helsinki Finland
| | - H. Repo
- Department of Bacteriology and Immunology; Haartman Institute; University of Helsinki; Helsinki Finland
| | - K. Kuuliala
- Department of Bacteriology and Immunology; Haartman Institute; University of Helsinki; Helsinki Finland
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Oo SZ, Chen RY, Siitonen S, Kontturi V, Eustace DA, Tuominen J, Aikio S, Charlton MDB. Disposable plasmonic plastic SERS sensor. Opt Express 2013; 21:18484-91. [PMID: 23938720 DOI: 10.1364/oe.21.018484] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The 'Klarite™' SERS sensor platform consisting of an array of gold coated inverted square pyramids patterned onto a silicon substrate has become the industry standard over the last decade, providing highly reproducible SERS signals. In this paper, we report successful transfer from silicon to plastic base platform of an optimized SERS substrate design which provides 8 times improvement in sensitivity for a Benzenethiol test molecule compared to standard production Klarite. Transfer is achieved using roll-to-roll and sheet-level nanoimprint fabrication techniques. The new generation plastic SERS sensors provide the added benefit of cheap low cost mass-manufacture, and easy disposal. The plastic replicated SERS sensors are shown to provide ~10(7) enhancement factor with good reproducibility (5%).
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Affiliation(s)
- S Z Oo
- School of Electronics & Computer Science, University of Southampton, Southampton, SO17 1BJ, UK.
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9
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Alanärä T, Aittomäki S, Kuuliala K, Kuuliala A, Siitonen S, Leirisalo-Repo M, Repo H. Signalling profiles of circulating leucocytes in patients recovered from reactive arthritis. Scand J Rheumatol 2012; 41:267-74. [PMID: 22651550 DOI: 10.3109/03009742.2012.664649] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Reactive arthritis (ReA) is a sterile joint inflammation triggered by a remote infection and associated with human leucocyte antigen (HLA)-B27. Its pathogenesis is unknown, but abnormal response to microbial structures or endogenous inflammatory mediators may be involved. We studied responses in leucocyte signalling profiles in patients with previous ReA after a full recovery. METHOD The study comprised 10 HLA-B27-positive healthy subjects with a history of Yersinia enterocolitica-triggered ReA (B27+ReA+) and 20 healthy reference subjects, of whom 10 carried HLA-B27 (B27+ReA-) and 10 did not (B27-ReA-). Phosphospecific fluorescent monoclonal antibodies and flow cytometry were used to determine activation of nuclear factor kappa B (NF-κB), signal transducers and activators of transcription (STATs) 1, 3, 5, and 6, and two mitogen-activated protein (MAP) kinases, p38 and extracellular signal-regulated kinase (ERK)1/2, in monocytes, lymphocytes, lymphocyte subsets, and neutrophils. B27+ReA+ and B27-ReA- whole-blood samples were incubated with Yersinia with or without infliximab to study the role of tumour necrosis factor (TNF) in lymphocyte subset activation. Samples of the three subject groups were studied using soluble bacterial or endogenous stimuli. Fluorescence levels were determined as relative fluorescence units (RFU) and the proportion of positively fluorescing cells. RESULTS The intracellular activation of circulating leucocytes in response to soluble stimuli was consistently comparable in B27+ReA+, B27+ReA-, and B27-ReA- subjects. Infliximab inhibited Yersinia-induced lymphocyte NF-κB phosphorylation similarly in B27+ReA+ and B27-ReA- groups. CONCLUSIONS ReA susceptibility is not reflected in leucocyte signalling profiles elicited by phlogistic stimuli. However, the possibility remains that aberrations occur in response to combinations of stimuli, such as those associated with leucocyte adhesion.
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Affiliation(s)
- T Alanärä
- Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki, Helsinki, Finland
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10
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Stjernberg-Salmela S, Ranki A, Karenko L, Siitonen S, Mustonen H, Puolakkainen P, Sarna S, Pettersson T, Repo H. Comment on: Low TNF-induced NF- B and p38 phosphorylation levels in leucocytes in tumour necrosis factor receptor-associated periodic syndrome: reply. Rheumatology (Oxford) 2011. [DOI: 10.1093/rheumatology/ker167] [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: 11/14/2022] Open
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Olkinuora H, von Willebrand E, Kantele JM, Vainio O, Talvensaari K, Saarinen-Pihkala U, Siitonen S, Vettenranta K. The Impact of Early Viral Infections and Graft-Versus-Host Disease on Immune Reconstitution Following Paediatric Stem Cell Transplantation. Scand J Immunol 2011; 73:586-93. [DOI: 10.1111/j.1365-3083.2011.02530.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Stjernberg-Salmela S, Ranki A, Karenko L, Siitonen S, Mustonen H, Puolakkainen P, Sarna S, Pettersson T, Repo H. Low TNF-induced NF- B and p38 phosphorylation levels in leucocytes in tumour necrosis factor receptor-associated periodic syndrome. Rheumatology (Oxford) 2010; 49:382-90. [DOI: 10.1093/rheumatology/kep327] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Kuuliala A, Takala A, Siitonen S, Leirisalo-Repo M, Repo H. Cellular and humoral markers of systemic inflammation in acute reactive arthritis and early rheumatoid arthritis. Scand J Rheumatol 2009; 33:13-8. [PMID: 15124937 DOI: 10.1080/03009740310004135] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE To compare systemic inflammation in reactive arthritis (ReA), rheumatoid arthritis (RA), and sepsis using novel markers of systemic inflammation, and to study whether they are helpful in distinguishing between ReA and RA. METHODS In 28 patients with acute ReA, 16 patients with early untreated RA, and 25 patients with blood culture-positive sepsis, phagocyte CD 11b expression was measured by flow cytometry, serum procalcitonin (PCT) levels by immunoluminometric assay, and soluble E-selectin (sE-selectin) levels by enzyme-linked immunosorbent assay (ELISA). RESULTS Neutrophil and monocyte CD11b expression and serum levels of PCT and sE-selectin were higher in patients with sepsis than patients with ReA or RA, or in healthy subjects (all p < 0.01). They were comparable in healthy subjects, ReA, and RA. CONCLUSION Patients with acute ReA and early RA have normal CD11b expression levels on phagocytes and normal PCT and sE-selectin levels in serum. Elevated levels suggest possible sepsis.
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Affiliation(s)
- A Kuuliala
- Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki, Finland.
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14
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Kallio R, Aalto H, Takala A, Ohtonen P, Collan J, Siitonen S, Joensuu H, Syrjala H, Repo H. Expression of CD11b/CD18 adhesion molecules on circulating phagocytes-a novel aid to diagnose infection in patients with cancer. Support Care Cancer 2008; 16:1389-96. [PMID: 18414903 DOI: 10.1007/s00520-008-0440-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2008] [Accepted: 03/06/2008] [Indexed: 11/30/2022]
Abstract
GOALS OF WORK No blood marker available to date is useful for distinguishing infection-related from neoplasm-related fever. We evaluated the expression of the peripheral blood phagocyte CD11b/CD18 adhesion molecule complex for this purpose. MATERIALS AND METHODS Neutrophil and monocyte CD11b/CD18 expression was assessed in two cohorts of patients with advanced solid cancer (n = 120) and in healthy controls (n = 63). The cancer series included 89 patients with verified infection, 23 without infection, and eight with neoplastic fever. CD11b/CD18 expression was measured using flow cytometry, and serum C-reactive protein (CRP) concentration was determined with immunoturbidimetric assay. RESULTS Cancer patients with infection had higher blood neutrophil and monocyte CD11b/CD18 expression levels than patients with neoplastic fever, those with advanced cancer without infection, or healthy controls (p < 0.01 for all analyses). High CD11b/CD18 values were measured exclusively in individuals diagnosed with infection. Receiver-operating characteristic area under the curve (AUC) for neutrophil and monocyte CD11b/CD18 expression for the discrimination of infection from neoplastic fever was 0.80 (95% CI, 0.70 to 0.88), which was superior (p = 0.039 and p = 0.049, respectively) to serum CRP on admission (AUC 0.51, 0.40 to 0.62). CONCLUSIONS Peripheral blood phagocytic cell CD11b/CD18 expression is useful for making a differential diagnosis between infection and neoplasm-related fever in cancer patients.
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Affiliation(s)
- R Kallio
- Department of Oncology and Radiotherapy, Oulu University Hospital, Box 22, 90029, Oulu, Finland.
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15
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Vakkila J, Nieminen U, Siitonen S, Turunen U, Halme L, Nuutinen H, Mustonen H, Puolakkainen P, Färkkilä M, Repo H. A novel modification of a flow cytometric assay of phosphorylated STAT1 in whole blood monocytes for immunomonitoring of patients on IFN alpha regimen. Scand J Immunol 2007; 67:95-102. [PMID: 18028288 DOI: 10.1111/j.1365-3083.2007.02028.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We explored whether episodes stimulating leucocytes in vivo could be tracked from whole blood samples by monitoring activation of STAT1 by flow cytometry. The method was tested in hepatitis C patients (n = 9) that were on interferon (IFN)alpha regimen. CD14+ monocytes responded strongly to IFNalpha/gamma being sensitive indicators for recent immune activation. At 45 min after s.c. IFNalpha 91% of monocytes were phosphorylated STAT1+. The frequency of responding cells decreased to a base level within 6 h. Monocytes, however, had a long-term deficient phosphorylated STAT1 response to IFNalphain vitro that in patients on standard IFNalpha regimen lasted for 48 h. In patients on pegylated IFNalpha the phosphorylated STAT1 response was completely absent. We conclude that whole blood analysis of STAT1 activation by flow cytometry is applicable to monitor immune cells in patient material.
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Affiliation(s)
- J Vakkila
- Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki, Helsinki, Finland
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16
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Doskolovich LL, Kazanskiy NL, Khonina SN, Skidanov RV, Heikkilä N, Siitonen S, Turunen J. Design and investigation of color separation diffraction gratings. Appl Opt 2007; 46:2825-30. [PMID: 17514226 DOI: 10.1364/ao.46.002825] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Color separation gratings (CSGs) are designed within the framework of the rigorous electromagnetic theory using a gradient method. The optimality of the scalar-theory-based solutions is estimated. The results of the experimental study of a CSG to separate three wavelengths are presented.
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Affiliation(s)
- L L Doskolovich
- Image Processing Systems Institute of the Russian Academy of Science, Samara State Aerospace University, Molodogvardejskaya Street 151, 443001 Samara, Russia
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17
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Olkinuora H, Talvensaari K, Kaartinen T, Siitonen S, Saarinen-Pihkala U, Partanen J, Vettenranta K. T cell regeneration in pediatric allogeneic stem cell transplantation. Bone Marrow Transplant 2007; 39:149-56. [PMID: 17211435 DOI: 10.1038/sj.bmt.1705557] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [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: 11/08/2022]
Abstract
Delayed and/or insufficient T cell recovery post hematopoietic stem cell transplantation (HSCT) leads to an increased risk of morbidity and mortality. We evaluated thymic function and its association with T cell regeneration post HSCT and identified factors involved in the process among pediatric stem cell transplant recipients. T cell regeneration in 66 pediatric patients was prospectively followed by naive T cell phenotyping, measuring of T cell receptor excision circles (TRECs) and expression of Foxp3 by regulatory T cells for the first 18 months post HSCT. TRECs were lower pre-HSCT in children with a malignant than non-malignant primary disease or immunosuppressed controls (P=0.001). Naive T lymphocyte reconstitution and thymic recovery were slow in the recipients of allogeneic stem cell grafts post HSCT. Infections caused by herpesviruses had a prognostic impact on mortality. Children with low TRECs had a high mortality (P=0.05) and low TRECs were also associated with extensive chronic graft-versus-host disease from 6 months onwards. Low amount of Foxp3 pre-HSCT was associated with an increased mortality post HSCT (P=0.03). Our study indicates an association between impaired T cell regeneration and thymic dysfunction and the clinical post transplant complications in pediatric allogeneic stem cell transplantation.
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Affiliation(s)
- H Olkinuora
- Division of Hematology-Oncology and Stem Cell Transplantation, Hospital for Children and Adolescents, University of Helsinki, Helsinki, Finland.
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Ahlström A, Hynninen M, Tallgren M, Kuusela P, Valtonen M, Orko R, Siitonen S, Takkunen O, Pettilä V. Predictive value of interleukins 6, 8 and 10, and low HLA-DR expression in acute renal failure. Clin Nephrol 2004; 61:103-10. [PMID: 14989629 DOI: 10.5414/cnp61103] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [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: 11/18/2022] Open
Abstract
AIMS HLA-DR expression and plasma levels of pro- and anti-inflammatory cytokines (IL-6, IL-8 and IL-10) and their predictive value concerning survival of critically ill systemic inflammatory response syndrome (SIRS) patients with and without acute renal failure (ARF) were evaluated. MATERIAL A total of 103 consecutive adult patients with SIRS from 2 university hospital intensive care units participated in the study. METHOD Laboratory data for all patients were prospectively collected on the day of admission and 2 days thereafter. Patients with acute renal failure (ARF) and non-ARF patients were compared by Mann-Whitney U-test. Independent predictors of mortality were tested using forward stepwise logistic multiple regression analysis. The discriminative power of different variables was tested using receiver operating characteristic (ROC) curve analysis. RESULTS ARF developed in 36 patients (35%). ARF patients showed significantly lower HLA-DR expression and higher plasma levels of IL-6, IL-8 and IL-10 than non-ARF patients. In ARF, moderate discriminative power in predicting survival was observed for day 2 IL-6 and IL-10 plasma levels (AUCs 0.703 and 0.749, respectively). CONCLUSIONS We found no clinically significant discriminative power in predicting survival of ARF patients for monocyte HLA-DR expression or cytokine plasma levels. Therefore, our results do not support the use of HLA-DR expression or cytokine plasma levels for that purpose.
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Affiliation(s)
- A Ahlström
- Department of Surgery, Division of Anesthesiology and Intensive Care Medicine, Helsinki University Hospital, Helsinki, Finland.
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Karhu R, Siitonen S, Tanner M, Keinänen M, Mäkipernaa A, Lehtinen M, Vilpo JA, Isola J. Genetic aberrations in pediatric acute lymphoblastic leukemia by comparative genomic hybridization. Cancer Genet Cytogenet 1997; 95:123-9. [PMID: 9169028 DOI: 10.1016/s0165-4608(96)00242-7] [Citation(s) in RCA: 20] [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] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Classical cytogenetic analysis plays an important role in the diagnosis and classification of childhood acute lymphoblastic leukemia (ALL). However, poor in vitro growth of the malignant cells and suboptimal quality of metaphase spreads may sometimes cause false-negative findings (normal karyotype). We used comparative genomic hybridization (CGH) to study whether this new method is able to detect and characterize genetic aberrations not detected by karyotyping. CGH showed clonal genetic aberrations in 8 of 13 cases, most of which showed gains of several chromosomes, indicating hyperdiploidy. The sensitivity of CGH was sufficient to detect a small interstitial deletion of 6q. One karyotypically complex case was resolved by CGH showing a high-level amplification of DNA sequences originating from the 12p12-13. Interphase fluorescence in situ hybridization (FISH) analyses confirmed the CGH findings in 2 cases, validating the accuracy of CGH. In conclusion, CGH experiments established the known fact that hyperdiploidy is the most common finding in pediatric ALLs and that CGH may detect aberrations that are not seen in the G-banded karyotype. CGH was also able to further characterize genetic aberrations such as gene amplification, which is occasionally involved in pediatric ALL as well as in other leukemias.
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Affiliation(s)
- R Karhu
- Laboratory of Cancer Genetics, Tampere University Hospital, Finland
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Abstract
Polycythaemia, peripheral oedema formation and hypertension have classically been described in association with obstructive sleep apnoea (OSA). However, there is very limited information about blood volume in OSA and how it changes during long-term treatment with nasal continuous positive airway pressure (nCPAP). Plasma (PV) and red-cell volumes (RCV), 24-h ambulatory blood pressure (BP), 24-h natriuresis and morning plasma aldosterone, renin activity and atrial natriuretic peptide in 11 men with a mean age of 47 y (range 37-55), apnoea index (AI) of 55 (22-106), body mass index of 36 (30-43) and seated BP of > or = 140/90 mmHg without any medication were measured. BP-measurements were repeated after 3 weeks and all measurements after 3 mo of nCPAP treatment. Aldosterone and 24-h mean heart rates decreased during treatment. Twenty-four-h BP decreased after 3 weeks but that decrease did not persist after 3 mo of treatment. There was a relationship between changes in night-time mean BP and PV and aldosterone. The haematocrit declined in every patient. No significant changes were found in the mean PV or RCV. They were in all instances lower than has earlier been described for normal, non-obese subjects. These data also suggest that OSA causes divergent individual disturbances in blood volume homeostasis which can be corrected by nCPAP.
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Affiliation(s)
- S Saarelainen
- Department of Pulmonary Diseases, Tampere University Hospital, Finland
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Kukkonen-Harjula K, Oja P, Vuori I, Pasanen M, Lange K, Siitonen S, Metsä-Ketelä T, Vapaatalo H. Cardiovascular effects of Atenolol, scopolamine and their combination on healthy men in Finnish sauna baths. Eur J Appl Physiol Occup Physiol 1994; 69:10-5. [PMID: 7957149 DOI: 10.1007/bf00867920] [Citation(s) in RCA: 14] [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] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Indicators of cardiovascular strain were studied in 12 healthy young men under the influence of drugs affecting the autonomic nervous system during the course of taking a sauna bath. There were four bath sessions: one without a drug (control) and three with drug pretreatment (Atenolol 50 mg or Scopolamine 0.3 mg or their combination taken orally 2 h before the bath). The time spent in the hot room depended on the subjective rating of heat stress. Its mean duration at a temperature of 88 degrees C (dry bulb) was 22 (range 14-33) min and did not differ significantly among the sessions. In the Atenolol experiment the mean resting heart rate before the bath was significantly lower (P < 0.001, ANOVA of repeated measures) than in the other experiments. The increase in heart rate per minute of heat exposure was significantly lower (P < 0.001) in the Atenolol experiment and higher (P = 0.017) in the Scopolamine experiment than in the other experiments. The systolic blood pressure increased more slowly (P = 0.004) and the diastolic pressure decreased less (P = 0.02) in the Atenolol experiment than in the other experiments. Heart rate and blood pressure returned to their initial levels during the 30-min recovery after the heat exposure. The plasma noradrenaline concentrations increased approximately twofold during all of the bath sessions, whereas the plasma adrenaline and serum thromboxane B2 concentrations showed no consistent alterations. A small oral dose of Scopolamine alone or in combination with Atenolol produced no marked cardiovascular strain in healthy men during a sauna bath.
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Affiliation(s)
- K Kukkonen-Harjula
- President Urho Kaleva Kekkonen Institute for Health Promotion Research (UKK Institute), Tampere, Finland
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Abstract
The efficacy of Lactobacillus GG yoghurt in preventing erythromycin associated diarrhoea was studied. Sixteen healthy volunteers were given erythromycin acistrate 400 mg t.i.d for a week. The volunteers were randomly assigned into two groups taking twice daily 125 ml of either Lactobacillus GG fermented yoghurt or pasteurized regular yoghurt as placebo during the drug treatment. Subjects receiving Lactobacillus GG yoghurt with erythromycin had less diarrhoea than those taking pasteurized yoghurt. Other side effects of erythromycin, such as abdominal distress, stomach pain and flatulence, were less common in the GG yoghurt group than in the placebo yoghurt group. The subjects receiving Lactobacillus GG yoghurt were colonized with these bacteria even during erythromycin treatment as measured by faecal counts of total Lactobacillus GG. No Lactobacillus GG was found in the faecal samples of volunteers in the group taking pasteurized yoghurt.
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Affiliation(s)
- S Siitonen
- Department of Biomedical Sciences, University of Tampere, Finland
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Kukkonen-Harjula K, Oja P, Laustiola K, Vuori I, Jolkkonen J, Siitonen S, Vapaatalo H. Haemodynamic and hormonal responses to heat exposure in a Finnish sauna bath. Eur J Appl Physiol Occup Physiol 1989; 58:543-50. [PMID: 2759081 DOI: 10.1007/bf02330710] [Citation(s) in RCA: 70] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Eight healthy young men were studied during three periods of heat exposure in a Finnish sauna bath: at 80 degrees C dry bulb (80 D) and 100 degrees C dry bulb (100 D) temperatures until subjective discomfort, and in 80 degrees C dry heat, becoming humid (80 DH) until subjective exhaustion. Oral temperature increased 1.1 degrees C at 80 D, 1.9 degrees C at 100 D and 3.2 degrees C at 80 DH. Heart rate increased about 60% at 80 D, 90% at 100 D and 130% at 80 DH. Plasma noradrenaline increased about 100% at 80 D, 160% at 100 D and 310% at 80 DH. Adrenaline did not change. Plasma prolactin increased 2-fold at 80 D, 7-fold at 100 D and 10-fold at 80 DH. Blood concentrations of the beta-endorphin immunoreactivity at 100 D, adrenocorticotropic hormone (ACTH) at 100 D and 80 DH, growth hormone at 100 D and testosterone at 80 DH also increased, but cortisol at 80 D and 100 D decreased. The plasma prostaglandin E2 and serum thromboxane B2 levels did not change. Patterns related to heat exposure were observed for heart rate, plasma noradrenaline, ACTH and prolactin in the three study periods.
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Affiliation(s)
- K Kukkonen-Harjula
- President Urho Kaleva Kekkonen Institute for Health Promotion Research, Tampere, Finland
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