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Scandinavian Journal of Clinical and Laboratory Investigation

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https://www.readbyqxmd.com/read/28727492/chronic-psychological-stress-seems-associated-with-elements-of-the-metabolic-syndrome-in-patients-with-ischaemic-heart-disease
#1
Natasha Bergmann, Søren Ballegaard, Jesper Krogh, Per Bech, Åke Hjalmarson, Finn Gyntelberg, Jens Faber
BACKGROUND AND OBJECTIVES: Chronic psychological stress, the metabolic syndrome (MS) and ischaemic heart disease (IHD) seem closely connected. In this study, we evaluate the association between chronic stress and elements of MS in patients with stable IHD. DESIGN: Cross-sectional cohort study. METHODS: Three hundred and fifty patients with stable IHD were included. Chronic stress was evaluated by the two questionnaires, Major Depression Inventory (MDI) and the psychological wellbeing index WHO-5, as well as by Pressure Pain Sensitivity (PPS), a physiological measure of hyperalgesia at the sternum known to be associated to elements of the chronic stress syndrome...
July 20, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28715286/effects-of-lifestyle-intervention-on-soluble-cd163-a-macrophage-activation-marker-in-patients-with-non-alcoholic-fatty-liver-disease
#2
Sidsel Rødgaard-Hansen, Alexis St George, Konstantin Kazankov, Adrian Bauman, Jacob George, Henning Grønbæk, Holger Jon Møller
OBJECTIVE: Liver macrophages play an important role in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Soluble CD163 (sCD163), a macrophage-specific biomarker, reflects disease activity in the range of liver diseases. The impact of lifestyle intervention on sCD163 in adult NAFLD patients has not been investigated. MATERIAL AND METHODS: We assessed 126 NAFLD patients participating in a lifestyle intervention study for sCD163 concentrations at baseline, after the three-month intervention period, and at long-term follow-up after 12 and 24 months...
July 17, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28715238/the-usage-of-fasting-glucose-and-glycated-hemoglobin-for-the-identification-of-unknown-type-2-diabetes-in-high-risk-patients-with-morbid-obesity
#3
Tone G Valderhaug, Archana Sharma, Gunnhild Kravdal, Reidun Rønningen, Ingrid Nermoen
BACKGROUND: In spite of increased vigilance of undiagnosed type 2 diabetes (DM2), the prevalence of unknown DM2 in subjects with morbid obesity is not known. AIM: To assess the prevalence of undiagnosed DM2 and compare the performance of glycated A1c (HbA1c) and fasting glucose (FG) for the diagnosis of DM2 and prediabetes (preDM) in patients with morbid obesity. PATIENTS AND METHODS: We measured fasting glucose and HbA1c in 537 consecutive patients with morbid obesity without previously known DM2...
July 17, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28715234/is-cardiovascular-disease-in-patients-with-diabetes-associated-with-serum-levels-of-mmp-2-lox-and-the-elastin-degradation-products-elm-and-elm-2
#4
Simone Andrea Rørdam Preil, Anne-Sofie Faarvang Thorsen, Anne Lindegaard Christiansen, Mikael Kjær Poulsen, Morten Asser Karsdal, Diana Julie Leeming, Lars Melholt Rasmussen
BACKGROUND: Diabetes mellitus type 2 (T2DM) is a significant risk factor for the development of cardiovascular diseases (CVDs). In a previous microarray study of internal mammary arteries from patients with and without T2DM, we observed several elastin-related genes with altered mRNA-expression in diabetic patients, namely matrix metalloproteinase 2 (MMP-2), lysyl oxidase (LOX) and elastin itself. In this study we investigate whether the serum concentrations of elastin-related proteins correlate to signs of CVD in patients with T2DM...
July 17, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28678636/iron-loading-in-hfe-p-c282y-homozygotes-found-by-population-screening-relationships-to-hla-type-and-t-lymphocyte-subsets
#5
Ketil Thorstensen, Mona A Kvitland, Wenche Ø Irgens, Arne Åsberg, Berit Borch-Iohnsen, Torolf Moen, Kristian Hveem
Iron loading in p.C282Y homozygous HFE hemochromatosis subjects is highly variable, and it is unclear what factors cause this variability. Finding such factors could aid in predicting which patients are at highest risk and require closest follow-up. The degree of iron loading has previously been associated with certain HLA-types and with abnormally low CD8 + cell counts in peripheral blood. In 183 Norwegian, p.C282Y homozygotes (104 men, 79 women) originally found through population screening we determined HLA type and measured total T-lymphocytes, CD4 + and CD8 + cells, and compared this with data on iron loading...
July 5, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28678546/mortality-prediction-using-serum-biomarkers-and-various-clinical-risk-scales-in-community-acquired-pneumonia
#6
Min Woo Kim, Jee Yong Lim, Sang Hoon Oh
We evaluated the predictive value of serum biomarkers and various clinical risk scales for the 28-day mortality of community-acquired pneumonia (CAP). Serum biomarkers including procalcitonin (PCT) and C-reactive protein (CRP) were evaluated in the emergency department. Scores for the pneumonia severity index (PSI); CURB65 (confusion, urea, respiration, blood pressure; age >65 years); Infectious Disease Society of America (IDSA) and American Thoracic Society (ATS) guidelines for severe CAP; Acute Physiology, Chronic Health Evaluation (APACHE) II; Sequential Organ Failure Assessment (SOFA); and quick SOFA (qSOFA) were calculated...
July 5, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28678543/paediatric-reference-values-for-total-homocysteine-tryptophan-tyrosine-and-phenylalanine-in-blood-spots
#7
Catharina E Bergwerff, Marjolein Luman, Henk J Blom, Jaap Oosterlaan
Determining blood concentrations of the amino acids homocysteine, tryptophan, tyrosine and phenylalanine in children is of value in the clinical practice. Over the past decades, the use of blood spot samples to examine amino acid concentrations is increasing rapidly. In children, the use of blood spot samples is especially of relevance, as this method is much less invasive than venous blood sampling. Currently, no paediatric reference values for amino acids in blood spots are available. The aim of the current study was to establish reference values for blood spot concentrations of total homocysteine, tryptophan, tyrosine and phenylalanine in school-age children...
July 5, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28678535/a-fluorescence-sedimentation-assay-for-dsdna-antibodies
#8
K Duus, A H Draborg, E Güven, Y M Moreno, S Jacobsen, C T Nielsen, G Houen
The Farr assay is a radioimmunoassay (RIA) for dsDNA antibodies, based on antibody precipitation using ammonium sulphate and quantification using radio-labelled dsDNA. The RIA-Farr assay offers outstanding clinical specificity and sensitivity for systemic lupus erythematosus (SLE) compared to other assays but does also present some disadvantages as it utilizes radioactive-labelled dsDNA and requires high levels of technical expertise for safe handling. Here, a new precipitation assay, 'Fluoro-Farr' assay, is described...
July 5, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28670999/biological-variation-of-holotranscobalamin-and-cobalamin-in-healthy-individuals
#9
Mette Brokner, Helle Borgstrøm Hager, Morten Lindberg
Data on biological variation for cobalamin and holotranscobalamin (holoTC) are limited. The aim of this study was to determine within-subject (CVI) and between-subject (CVG) biological variations for these analytes in a healthy population. We collected blood samples from 15 healthy volunteers (12 women and three men, 22-66 years) on the same weekday for 10 consecutive weeks. Serum samples were stored at -80 °C until analysis in duplicate in a single analytical run. The CVI and CVG were estimated by nested ANOVA...
July 2, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28650717/heart-type-fatty-acid-binding-protein-is-a-sensitive-biomarker-for-early-ami-detection-in-troponin-negative-patients-a-pilot-study
#10
Luisa Agnello, Giulia Bivona, Giuseppina Novo, Concetta Scazzone, Roberto Muratore, Piero Levantino, Chiara Bellia, Bruna Lo Sasso, Marcello Ciaccio
BACKGROUND: Early detecting AMI in individuals presenting to the ED with chest pain continues to be a challenge. cTn is the gold standard for AMI diagnosis but early presenters (<1 hours from symptom onset) maybe cTn negative on admission. We analysed the diagnostic value of h-FABP and hs-TnI in patients presenting to ED with chest pain and no cTnI elevations. METHODS: 28 AMI and 28 no-AMI individuals both presented to ED within one hour from pain onset were included...
June 26, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28644096/comparisons-between-commercial-salivary-testosterone-enzyme-linked-immunosorbent-assay-kits
#11
Christoffer R Andersson, Jonas Bergquist, Elvar Theodorsson, Jakob O Ström
INTRODUCTION: Measuring testosterone concentrations is of interest both in clinical situations and for research, the latter expanding rapidly during recent years. An increased demand for convenient methods has prompted a number of companies to develop enzyme-linked immunosorbent assay (ELISA) kits to measure testosterone concentrations in saliva. However, the inter-comparability of kits from different manufacturers have yet to be determined. AIM OF STUDY: The aim of this study was to compare commercially available ELISA kits from four different manufacturers (Salimetrics, IBL, DRG and Demeditec)...
June 23, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28644050/hba1c-analysis-by-capillary-electrophoresis-comparison-with-chromatography-and-an-immunological-method
#12
Olav Klingenberg, Torill Furuset, Camilla R Hestbråten, Marit H Hallberg, Astrid Steiro, Iren R Orset, Jens P Berg
BACKGROUND: Haemoglobin A1c (HbA1c) has become an even more important analyte for clinical laboratories during recent years with the introduction of its diagnostic use for diabetes mellitus. Several different analytical principles can be used, each with their advantages and disadvantages. AIM: We wanted to compare Sebia Capillarys 2 Flex Piercing (Capillarys) with our routine HbA1c methods, which were an HPLC method (Tosoh G7) and an immunoassay (Tina-Quant on Roche Modular P) by analysing a large clinical material...
June 23, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28644047/mutational-analysis-of-galt-gene-in-greek-patients-with-galactosaemia-identification-of-two-novel-mutations-and-clinical-evaluation
#13
Kleopatra H Schulpis, Georgia Thodi, Konstantinos Iakovou, Maria Chatzidaki, Yannis Dotsikas, Elina Molou, Olga Triantafylli, Yannis L Loukas
Classical galactosaemia is an inborn error of metabolism due to the deficiency of the enzyme galactose-1-phosphate uridylyltransferase (GALT). The aim of the study was to identify the underlying mutations in Greek patients with GALT deficiency and evaluate their psychomotor and speech development. Patients with GALT deficiency (n = 17) were picked up through neonatal screening. Mutational analysis was conducted via Sanger sequencing, while in silico analysis was used in the cases of novel missense mutations...
June 23, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28632435/relative-effects-of-plasma-fibrinogen-concentrate-and-factor-xiii-on-rotem-coagulation-profiles-in-an-in-vitro-model-of-massive-transfusion-in-trauma
#14
David E Schmidt, Märit Halmin, Agneta Wikman, Anders Östlund, Anna Ågren
Massive traumatic haemorrhage is aggravated through the development of trauma-induced coagulopathy, which is managed by plasma transfusion and/or fibrinogen concentrate administration. It is yet unclear whether these treatments are equally potent in ensuring adequate haemostasis, and whether additional factor XIII (FXIII) administration provides further benefits. In this study, we compared ROTEM whole blood coagulation profiles after experimental massive transfusion with different transfusion regimens in an in vitro model of dilution- and transfusion-related coagulopathy...
June 20, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28632434/screening-for-celiac-disease-by-endomysial-antibodies-in-patients-with-unexplained-hypertransaminasaemia
#15
Mariam Ghozzi, Mohamed Ali Ben Salem, Fatma Mbarki, Ali Jmaa, Azza Baccouch, Nabil Sakly, Elhem Ben Jazia, Ibtissem Ghedira
OBJECTIVE: To do a serological screening for celiac disease in patients with unexplained liver cytolysis. MATERIALS AND METHODS: Fifty-six patients with liver cytolysis without known aetiology were studied. Endomysial antibodies were determined by indirect immunofluorescence on human umbilical cord. Two thousand and five hundred blood donors served as control group. For statistical analysis, we used Chi-square or Fisher's exact test. RESULTS: The frequency of IgA endomysial antibodies in our patients was significantly higher than in the control group (8...
June 20, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28613965/effect-of-saliva-collection-methods-and-oral-hygiene-on-salivary-biomarkers
#16
Allisson Benatti Justino, Renata Roland Teixeira, Leonardo Gomes Peixoto, Olga Lucia Bocanegra Jaramillo, Foued Salmen Espindola
The aim of this study was to evaluate the influence of unstimulated and stimulated saliva collection methods, as well as tooth brushing, on the secretion rate of salivary total protein, nitrite, total antioxidant capacity and alpha-amylase. Saliva of 14 healthy individuals were collected with stimulation using Salivette(®), Parafilm(®) and chewing gum and without stimulation from spit with and without fluid accumulation, before and after oral hygiene. Total protein, nitrite, total antioxidant capacity and alpha-amylase concentration (sAA) were evaluated...
June 14, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28613959/reference-intervals-for-the-p-albumin-bromocresol-purple-method
#17
Peter Astrup Christensen
Correct reference intervals are an important part of test results. As establishing own reference intervals is a very expensive task, the NORIP reference intervals are often transferred for use in Nordic laboratories. The NORIP reference interval on P-Albumin was here compared to current results for laboratories using the bromocresol purple (BCP) method for P-Albumin. External quality control reports were used to investigate the change in levels between the BCP and BCG methods on P-Albumin. An algorithm was built for extracting and isolating the laboratory's healthy subject population...
June 14, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28613958/albumin-adjustment-of-total-calcium-does-not-improve-the-estimation-of-calcium-status
#18
Peter Ridefelt, Johanna Helmersson-Karlqvist
BACKGROUND: There is a longstanding controversy as to whether plasma measurements of total calcium should be adjusted for albumin concentration, and if so which formulas are the most appropriate. METHODS: Ionised calcium, total calcium and albumin results, analysed at the same time at Uppsala University Hospital Laboratory between February 2005 and June 2013, were retrieved from a laboratory information system. The dataset included results from 20,003 patients. Total calcium was albumin-modified by a locally derived formula, based on 3106 patients from the dataset, and formulas from the literature...
June 14, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28609200/significance-of-s100a8-s100a9-and-calprotectin-levels-in-bladder-cancer
#19
O Yasar, T Akcay, C Obek, F A Turegun
OBJECTIVES: Members of the S100 protein family, S100A8, S100A9 and their heterodimer complex known as calprotectin are thought to be involved not only in inflammatory pathways but also in tumorigenesis and cancer progression. Therefore, they have been widely studied in various types of cancer; however, there is limited knowledge about their role in bladder cancer. In this study, our aim was to determine the levels of S100A8 and S100A9 in the sera, and calprotectin levels in the sera and urines of bladder cancer patients and compare it to urinary BTA, a tumor marker that can be used in the diagnosis of bladder cancer...
June 13, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28609162/usefulness-of-thresholds-for-smear-review-of-neutropenic-samples-analyzed-with-a-sysmex-xn-10-analyzer
#20
Emily Ronez, Carole Geara, Sylvie Coito, Hugues Jacqmin, Edouard Cornet, Xavier Troussard, Bernard Chatelain, François Mullier
Neutropenia is one of the main criteria for a blood smear review. The objective of this study was to compare the thresholds proposed by the international consensus group for hematology review (1.0 10(9)/L) and the French speaking Group for Cellular Haematology (1.5 10(9)/L) in terms of the number of useless smears. We collected 112,097 analyzed samples from four laboratories equipped with XN instruments (Sysmex, Kobe, Japan) during early 2016. The only exclusion criterion was a leucocyte count below 0.5 10(9)/L...
June 13, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
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