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Scandinavian Journal of Clinical and Laboratory Investigation

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https://www.readbyqxmd.com/read/29455564/measurement-uncertainty-of-platelet-concentration-using-the-sysmex-xn-automated-hematology-analyzer
#1
Yong Kwan Lim, Oh Joo Kweon, Jee-Hye Choi, Woonhyoung Lee, Ae Ja Park
We estimated the measurement uncertainty (MU) of platelet concentration measured using the Sysmex XN system with two reference platelet counting methods described by DIN 58932-5 (PTB method) and the International Council for Standardization in Haematology (ICSH method). Ten blood samples were used to estimate and compare the MU of the XN system, and 30 samples were used to compare the methods. The standard uncertainty of the reference method was significantly higher for the ICSH method; the PTB method showed higher platelet concentrations than the ICSH method...
February 19, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29446989/comparison-of-the-efficacy-of-two-human-fibrinogen-concentrates-to-treat-dilutional-coagulopathy-in-vitro
#2
Thorsten Haas, Melissa M Cushing, Lars M Asmis
Both congenital and acquired fibrinogen deficiency can be safely treated with administration of fibrinogen concentrate. The aim of this study was to test the efficacy of a new fibrinogen product (Fibryga) compared to a licensed product (Haemocomplettan) in an in vitro model of dilutional coagulopathy. Ten blood specimens from healthy volunteers were diluted 1:1 with balanced crystalloid solution and subsequently supplemented with each fibrinogen concentrate at a dose replicating in vivo supplementation (50 mg kg -1 )...
February 15, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29411649/alteration-in-microrna-155-level-correspond-to-severity-of-coronary-heart-disease
#3
Xian-Ke Qiu, Jun Ma
Cardiovascular diseases are a consequence of genetic and epigenetic interactions. Inflammation contributes toward the initiation and progression of atherosclerotic lesions. Previous studies have shown that microRNA (miR) 155 plays a role in cardiovascular disease, including the prevention of inflammatory infiltration, regulation of autophagy, and participation of immunoreactions. However, the change of miR-155 level in the development of atherosclerosis remains to be determined. The initial objective of this study was that CHD patients would have altered serum miR-155 level...
February 7, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29390883/mutational-spectrum-of-the-phenylalanine-hydroxylase-gene-in-patients-with-phenylketonuria-in-the-central-region-of-china
#4
Zhan Zhang, Jun-Jun Gao, Yang Feng, Lin-Lin Zhu, Huan Yan, Xu-Feng Shi, Ai-Min Chang, Ying Shi, Ping Wang
Phenylketonuria (PKU, OMIM 261600) caused by phenylalanine hydroxylase (PAH) deficiency is an autosomal recessive disease that is characterized by abnormalities of phenylalanine metabolism. In this study, a total of 77 patients, originating from the central region of China and who were diagnosed with PAH deficiency at the third affiliated hospital of Zhengzhou University, were enrolled in this study. The 13 exons and 12 flanking introns of the PAH gene were analyzed by Sanger sequencing and next generation sequencing...
February 1, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29383956/the-macrophage-activation-marker-smr-as-a-diagnostic-and-prognostic-marker-in-patients-with-acute-infectious-disease-with-or-without-sepsis
#5
Mette Marie Relster, Shahin Gaini, Holger Jon Møller, Isik Somuncu Johansen, Court Pedersen
Sepsis is a leading cause of mortality. This study aims to assess the utility of the soluble mannose receptor (sMR) as a biomarker of sepsis and mortality in patients hospitalized with suspected infection. Using an in-house ELISA assay the concentration of sMR was analyzed in the serum of patients from three prospective studies. Using Sepsis-3 guidelines, patients were stratified as no infection (NI, n = 68), verified infection without sepsis (NSEP, n = 133) and verified infection with sepsis (SEP, n = 190)...
January 31, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29382230/how-to-optimize-the-prescription-of-laboratory-tests-success-and-failures-in-an-academic-hospital
#6
Catherine Fillée, Claire Beguin, Laurence Habimana, Catherine Hubert, Marianne Philippe
In the context of the flat-rate reimbursements in healthcare, we reviewed physicians' behavior towards laboratory test ordering. We demonstrated how it could be improved when a specific stage of the patient management is considered. We took a multi-step approach to analyze the laboratory test orders in the context of planned laparoscopic cholecystectomy in a general teaching hospital. A reference order set was defined through a collaborative analysis between clinicians and laboratory physicians. The clinical and financial impacts were then evaluated over a period of 24 months...
January 30, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29381084/characterization-of-scca-igm-as-a-biomarker-of-liver-disease-in-an-asian-cohort-of-patients
#7
Hoang Bui Huu, Nhuong Ha Thuc, Hoa Pham Thi Le, Thuy Do Thi Thanh, An Luong Bac, Claudio Tiribelli, Patrizia Pontisso, Andrea Gallotta, Laura Paneghetti, Giorgio Fassina
Viral hepatitis infection is a major global issue and a leading cause of liver disease and associated deaths. Over time, patients infected with hepatitis B (HBV) or C virus (HCV) develop cirrhosis and, eventually, hepatocellular carcinoma (HCC). For this reason, they need to be constantly monitored. Current Asian guidelines recommend the determination of serum alpha-fetoprotein (AFP) together with liver ultrasounds every six months to detect HCC nodules. However, both methods have several limitations, and other biomarkers have been studied for monitoring cirrhosis, including SCCA-IgM, an immune-complex formed by Squamous Cell Carcinoma Antigen and IgM...
January 30, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29361858/determination-of-the-renal-concentration-capacity-following-intravenous-administration-of-ddavp-in-healthy-humans
#8
Mia Faerch, Marie K Schroeder, Birgitte T Mahler, Jane H Christensen, Konstantinos Kamperis, Soren Rittig
The synthetic AVP analogue 1-desamino-8-d-arginine-vasopressin (dDAVP) is used for treatment of polyuric disorders. Lack of commercially available assays limits the usefulness of dDAVP as a diagnostic tool in the assessment of renal concentrating capacity. We aimed to develop a specific radioimmunoassay (RIA) for determination of plasma dDAVP (pdDAVP) in order to investigate the relationship between pdDAVP levels and urine osmolality (Uosm). Further, we aimed to determine the onset, duration, and maximum concentrating capacity following intravenous (i...
January 23, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29336188/establishment-of-reference-interval-for-the-tumour-marker-serum-cyfra-21-1-in-healthy-chinese-han-ethnic-adults
#9
Bing Zhao, Miaomiao Zhang, Donghong Liu, Yingpeng Ren, Jing Xie, Yan Liang, Zaixing Yang
BACKGROUND: Our aim was to establish the reference interval (RI) for serum CYFRA 21-1 in healthy Chinese Han ethnic adults, since there has been no report about it. METHODS: After screening, 9954 healthy Chinese Han adults (age range 18-95 years) were recruited, including 6639 (66.7%) males and 3315 (33.3%) females. Electrochemiluminescence immunoassay was used to measure serum CYFRA21-1. The RI was defined by nonparametric 95% percentile interval. RESULTS: The distribution for serum CYFRA21-1 level was non-Gaussian...
January 16, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29336181/analytical-and-between-subject-variation-of-thrombin-generation-measured-by-calibrated-automated-thrombography-on-plasma-samples
#10
Anne F Kristensen, Søren R Kristensen, Ursula Falkmer, Anna-Marie B Münster, Shona Pedersen
BACKGROUND: The Calibrated Automated Thrombography (CAT) is an in vitro thrombin generation (TG) assay that holds promise as a valuable tool within clinical diagnostics. However, the technique has a considerable analytical variation, and we therefore, investigated the analytical and between-subject variation of CAT systematically. Moreover, we assess the application of an internal standard for normalization to diminish variation. METHODS: 20 healthy volunteers donated one blood sample which was subsequently centrifuged, aliquoted and stored at -80 °C prior to analysis...
January 16, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29325455/influence-of-middle-distance-running-on-muscular-micro-rnas
#11
Elisa Danese, Marco Benati, Fabian Sanchis-Gomar, Cantor Tarperi, Gian Luca Salvagno, Elisa Paviati, Martina Montagnana, Federico Schena, Giuseppe Lippi
A specific subset of micro RNAs (miRs), including miR-133 and miR-206, is specifically expressed in muscle tissue, so that they are currently defined as muscular miRs (myomiRs). To further elucidate the role of myomiRs in muscle biology, we measured miR-133a and miR-206 in plasma of 28 middle-age recreational athletes. The study population consisted of 28 middle aged, recreation athletes (11 women and 17 men; mean age, 46 years) who completed a 21.1 km, half-marathon. The plasma concentration of miR-133a and miR-206, the serum concentration of creatine kinase (CK) and high-sensitivity (HS) cardiac troponin T (cTnT), as well as capillary lactate, were measured before and immediately after the run...
January 11, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29313382/anti-transglutaminase-detection-followed-by-endomysium-antibody-confirmation-test-on-monkey-esophagus-is-the-best-strategy-to-screen-for-celiac-disease
#12
Marco Di Tola, Rossella Casale, Mariacatia Marino, Raffaele Borghini, Umberto Occhiuzzi, Antonio Picarelli
No abstract text is available yet for this article.
January 9, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29310473/a-new-approach-for-diagnosing-chronic-myelomonocytic-leukemia-using-structural-parameters-of-sysmex-xntm-analyzers-in-routine-laboratory-practice
#13
Françoise Schillinger, Elise Sourdeau, Marouane Boubaya, Lucile Baseggio, Sylvain Clauser, Edouard Cornet, Camille Debord, Jean-Pierre Defour, Frédérique Dubois, Marion Eveillard, Anne-Cécile Galoisy, Marie-Odile Geay, François Mullier, Vanessa Nivaggioni, Valérie Soenen, Pascal Morel, Francine Garnache-Ottou, Emily Ronez, Valérie Bardet, Eric Deconinck
According to WHO recommendations, diagnosis of chronic myelomonocytic leukemia (CMML) beforehand requires microscopic examination of peripheral blood to identify dysplasia and/or blasts when monocytes are greater or equal to 1.0 × 109/L and 10% of leucocytes. We analyzed parameters derived from SysmexTM XN analyzers to improve the management of microscopic examination for monocytosis. We analyzed results of the complete blood count and the positioning and dispersion parameters of polymorphonuclear neutrophils and monocytes in 61 patients presenting with CMML and 635 control patients presenting with a reactive monocytosis...
January 8, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29310458/evaluation-of-fus-2000-urine-analyzer-analytical-properties-and-particle-recognition
#14
Miroslava Beňovská, Ondřej Wiewiorka, Jana Pinkavová
This study evaluates the performance of microscopic part of a hybrid analyzer FUS-2000 (Dirui Industrial Co., Changchun, China), its analytical properties and particle recognition. The evaluation of trueness, repeatability, detection limit, carry-over, linearity range and analytical stability was performed according to Dirui protocol guidelines designed by Dirui Company to guarantee the quality of the instrument. Trueness for low, medium and high-value concentrations was calculated with bias of 15.5, 4.7 and -6...
January 8, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29304563/the-anticoagulant-effect-of-therapeutic-levels-of-dabigatran-in-atrial-fibrillation-evaluated-by-thrombelastography-teg%C3%A2-hemoclot-thrombin-inhibitor-hti-assay-and-ecarin-clotting-time-ect
#15
Sacha Solbeck, Annette Schophuus Jensen, Christian Maschmann, Jakob Stensballe, Sisse Rye Ostrowski, Pär I Johansson
Monitoring the effect of dabigatran (Pradaxa®) is challenging. The aim of this study was to evaluate if thrombelastography reaction time (TEG® R) could detect the anticoagulant effect of dabigatran showing a correlation between TEG® R, Hemoclot Thrombin Inhibitor (HTI) assay and Ecarin Clotting Time (ECT) in patients with non-valvular atrial fibrillation (NVAF). Blood samples from 35 AF patients receiving either 110 mg (n 19) or 150 mg (n 16) dabigatran twice daily were analyzed with TEG®, HTI and ECT 2-3 h after dabigatran intake...
January 5, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29304558/reduction-of-feno-by-tap-water-and-carbonated-water-mouthwashes-magnitude-and-time-course
#16
Paul Guenther Lassmann-Klee, Tuula Lindholm, Markus Metsälä, Lauri Halonen, Anssi Raimo Antero Sovijärvi, Päivi Piirilä
Fractional exhaled nitric oxide (FENO) assesses eosinophilic inflammation of the airways, but FENO values are also influenced by oral nitric oxide (NO). The aim of this pilot study was to measure FENO and compare the effect of two different mouthwashes on FENO and analyse the duration of the effect. FENO was measured in 12 randomized volunteers (healthy or asthmatic subjects) with a NIOX VERO® analyser at an expiratory flow rate of 50 mL/s. After a baseline measurement, a mouthwash was performed either with tap water or carbonated water and was measured during 20 min in 2 min intervals...
January 5, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29301417/isolated-kidney-perfusion-the-influence-of-pulsatile-flow
#17
Charlotte von Horn, Thomas Minor
Within the scope of transplantation research, ex vivo kidney perfusion has been proven an attractive model to study ischemia-reperfusion and preservation injury. Renal perfusion techniques also occupy scientists with the aim to optimize organ reconditioning and preparation prior to transplantation. This study investigated the influence of a pulsatile perfusion pattern that brings flow conditions closer to physiological situations, on renal perfusion characteristic and kidney function in the isolated perfused kidney...
January 4, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29298534/the-significance-of-thiol-disulfide-homeostasis-and-ischemia-modified-albumin-levels-to-assess-the-oxidative-stress-in-patients-with-different-stages-of-diabetes-mellitus
#18
Bayram Gulpamuk, Kemal Tekin, Kenan Sonmez, Merve Inanc, Salim Neselioglu, Ozcan Erel, Pelin Yilmazbas
This study investigated the value of Thiol/Disulfide homeostasis and ischemia-modified albumin (IMA) levels in discriminating diabetic cases with different stages of retinopathy and without retinopathy. In total, 122 patients with type 2 diabetes mellitus (DM) were enrolled in this prospective cross-sectional study. These patients were separated into three subgroups: Group 1 included 42 patients with DM and no diabetic retinopathy (DR), Group 2 included 40 patients with DM having non-proliferative DR and the Group 3 had 40 patients with DM having proliferative DR...
January 3, 2018: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29283308/normal-values-for-calprotectin-in-stool-samples-of-infants-from-the-population-based-longitudinal-born-into-life-study
#19
Sari Peura, Tove Fall, Catarina Almqvist, Ellika Andolf, Anna Hedman, Göran Pershagen, Johanna Helmersson-Karlqvist, Anders Larsson
Faecal calprotectin is a protein used as a diagnostic marker for inflammatory bowel diseases. We determined upper limits for normal calprotectin values for neonatal, 6, 12 and 24 months old children using a turbidimetric immunoassay in a cohort of Swedish children. The advantage of the method is that opposite to previously used enzyme-linked immunosorbent assay (ELISA) method, it enables measuring single samples, and thus, shortens the analysis time significantly. There were 72 samples (41.7% female) collected neonatally, 63 samples (34...
December 28, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29278951/calprotectin-s100a8-a9-should-preferably-be-measured-in-edta-plasma-results-from-a-longitudinal-study-of-patients-with-rheumatoid-arthritis
#20
Hilde Haugedal Nordal, Magne K Fagerhol, Anne-Kristine Halse, Hilde Berner Hammer
Calprotectin (S100A8/A9), a protein expressed in neutrophils and monocytes/macrophages in circulation and inflamed tissue, is associated with measures of disease activity in rheumatoid arthritis (RA) patients both when measured in ethylenediaminetetraacetic acid (EDTA)-plasma and in serum. We wanted to explore if EDTA-plasma or serum should be preferred for calprotectin as a marker of disease activity. Calprotectin was analysed in EDTA-plasma and serum by enzyme-linked immunosorbent assay (ELISA) at baseline in 141 RA patients, starting biologic disease-modifying anti-rheumatic drugs (bDMARDs), and after three months...
December 27, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
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