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Scandinavian Journal of Clinical and Laboratory Investigation

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https://www.readbyqxmd.com/read/28218013/effects-of-hemolysis-and-lipemia-interference-on-kaolin-activated-thromboelastography-and-comparison-with-conventional-coagulation-tests
#1
Ning Tang, Xi Jin, Ziyong Sun, Cui Jian
The effects of hemolysis and lipemia on thromboelastography (TEG) analysis have been scarcely evaluated in human samples, and neglected in clinical practice. We aimed to investigate the effects of in vitro mechanical hemolysis and lipemia on TEG analysis and conventional coagulation tests. Twenty-four healthy volunteers were enrolled in the study. Besides the controls, three groups with slight, moderate and severe mechanical hemolysis were constituted according to free hemoglobin (Hb) concentrations of 0.5-1...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28218012/reference-values-for-pulmonary-diffusing-capacity-for-adult-native-finns
#2
Annette Kainu, Jyri Toikka, Esko Vanninen, Kirsi L Timonen
Measurement standards for pulmonary diffusing capacity were updated in 2005 by the ATS/ERS Task Force. However, in Finland reference values published in 1982 by Viljanen et al. have been used to date. The main aim of this study was to produce updated reference models for single-breath diffusing capacity for carbon monoxide for Finnish adults. Single-breath diffusing capacity for carbon monoxide was measured in 631 healthy non-smoking volunteers (41.5% male). Reference values for diffusing capacity (DLCO), alveolar volume (VA), diffusing capacity per unit of lung volume (DLCO/VA), and lung volumes were calculated using a linear regression model...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28218011/asymmetric-dimethylarginine-in-the-assessment-of-febrile-neutropenia-in-hematological-patients
#3
Marika Lappalainen, Sari Hämäläinen, Auni Juutilainen, Irma Koivula, Kari Pulkki, Esa Jantunen
Asymmetric dimethylarginine (ADMA) has been recognized as an independent prognostic factor for sepsis mortality in intensive care units. No data are available on kinetics or prognostic value of ADMA in hematological patients. We evaluated the ability of ADMA to act as a predictor for complicated course of febrile neutropenia, defined as bacteremia and/or septic shock in adult hematological patients receiving intensive chemotherapy. This prospective study included 87 adult hematological patients with febrile neutropenia after an intensive chemotherapy for acute myeloid leukemia (AML) or after an autologous stem cell transplantation (ASCT)...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28218010/changes-in-hematological-indices-and-lymphocyte-subsets-in-response-to-whole-blood-donation-in-healthy-male-donors
#4
Anwar Borai, Callum Livingstone, Enaam Alsobhi, Abeer Al Sofyani, Dalal Balgoon, Anwar Farzal, Mohammed Almohammadi, Abdulafattah Al-Amri, Suhad Bahijri, Daad Alrowaili, Wafaa Bassiuni, Ayman Saleh, Norah Alrowaili, Mohamed Abdelaal
Whole blood donation has immunomodulatory effects, and most of these have been observed at short intervals following blood donation. This study aimed to investigate the impact of whole blood donation on lymphocyte subsets over a typical inter-donation interval. Healthy male subjects were recruited to study changes in complete blood count (CBC) (n = 42) and lymphocyte subsets (n = 16) before and at four intervals up to 106 days following blood donation. Repeated measures ANOVA were used to compare quantitative variables between different visits...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28150507/the-microinr-portable-coagulometer-analytical-quality-and-user-friendliness-of-a-pt-inr-point-of-care-instrument
#5
Pia Bükmann Larsen, Elin Storjord, Åsne Bakke, Tone Bukve, Mikael Christensen, Joakim Eikeland, Vegar Engeland Haugen, Kristin Husby, Rie McGrail, Solveig Meier Mikaelsen, Grete Monsen, Mette Fogh Møller, Jan Nybo, Jesper Revsholm, Aslaug Johanne Risøy, Unni Marie Skålsvik, Heidi Strand, Reyes Serrano Teruel, Elvar Theodorsson
Regular measurement of prothrombin time as an international normalized ratio PT (INR) is mandatory for optimal and safe use of warfarin. Scandinavian evaluation of laboratory equipment for primary health care (SKUP) evaluated the microINR portable coagulometer (microINR(®)) (iLine Microsystems S.L., Spain) for measurement of PT (INR). Analytical quality and user-friendliness were evaluated under optimal conditions at an accredited hospital laboratory and at two primary health care centres (PHCCs). Patients were recruited at the outpatient clinic of the Laboratory of Medical Biochemistry, St Olav's University Hospital, Trondheim, Norway (n = 98) and from two PHCCs (n = 88)...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28150506/beta-hydroxybutyrate-and-pyroglutamate-can-be-included-in-a-rapid-gc-ms-screening-method-for-differential-diagnosis-of-metabolic-acidosis
#6
Siri Føreid, Gaut Gadeholt
A rapid gas chromatographic mass spectrometric method for measuring anions associated with acute anion gap metabolic acidosis is described. The method is an extension of a previous method. The method quantifies glycolic acid, beta-hydroxybutyric acid with good linearity and pyroglutamic acid with a reproducible curvature relation between 1 and 20 mmol/L and can help the clinician distinguish effectively between ethylene glycol poisoning, alcoholic and diabetic ketoacidosis and cysteine deficiency so early that it will have clinical consequences...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28150505/reference-intervals-for-growth-arrest-specific-6-protein-in-adults
#7
Zeynep Cagman, Ozlem Bingol Ozakpinar, Zeynep Cirakli, Asuman Gedikbasi, Pinar Ay, David Colantonio, Ahmet Riza Uras, Khosrow Adeli, Fikriye Uras
The objective of this study was to establish reference intervals for growth arrest-specific 6 (GAS6), a vitamin K-dependent protein, in human adult plasma according to the Guideline of Clinical and Laboratory Standards Institute (CLSI) C28-A3. Blood samples were collected from 308 healthy volunteers aged 18-72 (157 female, 151 male). A non-parametric approach was used to calculate the reference interval. The plasma GAS6 reference interval was determined, with 90% confidence interval: the lower limit (2.5 percentile) was 2...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28150502/assay-dependent-variability-of-serum-insulin-concentrations-a-comparison-of-eight-assays
#8
Maryam Tohidi, Parvaneh Arbab, Asghar Ghasemi
Although insulin measurement is essential for both clinical and research purposes, there is currently no reference method for insulin assays. The aim of this study was to compare results of serum insulin determined by a number of commercially available assays. We compared eight insulin assays by analyzing 165 serum samples. Assays included two chemiluminescence (Roche and DiaSorin), four ELISA (Tosoh, Mercodia, Monobind, and Diametra), and two IRMA (Izotop and BioSource) methods. Each assay was compared with the mean of all assay methods and Bland-Altman difference plots were used to measure agreement between each assay and overall mean...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28097881/evaluation-of-hemoglobin-a1c-measurement-from-filter-paper-using-high-performance-liquid-chromatography-and-immunoturbidimetric-assay
#9
Yonghua Wu, Xu Yang, Haining Wang, Zhenrong Li, Tiancheng Wang
Glycated hemoglobin (HbA1c) measurement from whole blood (WB) samples is inconvenient for epidemic surveillance and self-monitoring of glycemic level. We evaluated HbA1c measurement from WB blotted on filter paper (FP), which can be easily transported to central laboratories, with high-performance liquid chromatography (HPLC) and immunoturbidimetric assay (ITA). WB was applied to Whatman filter paper. By using HPLC and WB samples as reference methods, these FP samples were evaluated on HPLC and ITA. Inter- and intra-assay variation, WB vs...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28079404/free-amino-acids-in-fibromyalgia-syndrome-relationship-with-clinical-picture
#10
Valeria Ruggiero, Massimiliano Mura, Enrico Cacace, Benedetta Era, Marcella Peri, Giuseppina Sanna, Antonella Fais
The objectives of our study were to evaluate free amino acid (FAA) concentrations in the serum of patients affected by fibromyalgia syndrome (FMS) and to determine the relationships between FAA levels and FMS clinical parameters. Thus, serum amino acid concentrations were quantified (HPLC analysis) in 23 females with fibromyalgia (according to the American College of Rheumatology classification criteria) and 20 healthy females. The results showed significantly higher serum concentrations of aspartate, cysteine, glutamate, glycine, isoleucine, leucine, methionine, ornithine, phenylalanine, sarcosine, serine, taurine, tyrosine and valine in FMS patients vs...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28067075/perioperative-humoral-stress-response-to-laparoscopic-versus-open-aortobifemoral-bypass-surgery
#11
Anne H Krog, Per M Thorsby, Mehdi Sahba, Erik M Pettersen, Irene Sandven, Jørgen J Jørgensen, Jon O Sundhagen, Syed S H Kazmi
Minimally invasive surgery seems to reduce hormonal stress response to surgery, but has not previously been examined in major abdominal vascular surgery. Aortic cross-clamping time and operation time is known to be longer in the totally laparoscopic aortobifemoral bypass (LABF) as compared to open aortobifemoral bypass (OABF). The main objective of our study was to measure the hormonal stress response during surgery and aortic cross-clamping in patients undergoing a totally laparoscopic versus an open aortobifemoral bypass...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27905214/the-association-of-plasma-oxidative-status-and-inflammation-with-the-development-of-atrial-fibrillation-in-patients-presenting-with-st-elevation-myocardial-infarction
#12
Hasan Aydin Bas, Fatih Aksoy, Atilla Icli, Ercan Varol, Abdullah Dogan, Dogan Erdogan, Ibrahim Ersoy, Akif Arslan, Hatem Ari, Nihal Bas, Recep Sutcu, Mehmet Ozaydin
Atrial fibrillation (AF) is the most common supraventricular arrhythmia following ST elevation myocardial infarction (STEMI). Oxidative stress and inflammation may cause structural and electrical remodeling in the atria making these critical processes in the pathology of AF. In this study, we aimed to evaluate the association between total oxidative status (TOS), total antioxidative capacity (TAC) and high-sensitivity C-reactive protein (hs-CRP) in the development of AF in patients presenting with STEMI. This prospective cohort study consisted of 346 patients with STEMI...
April 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27937008/abnormal-leukocyte-scattergrams-and-immature-platelet-fraction-on-sysmex-xn-9000-analyzer-a-new-diagnostic-tool-for-altered-megakaryopoiesis
#13
Sabrina Buoro, Barbara Manenti, Michela Seghezzi, Paola Dominoni, Mauro Vavassori, Rosangela Trezzi, Monica Galli, Guido Finazzi
No abstract text is available yet for this article.
February 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27937007/hemoglobin-amino-acids-by-the-numbers
#14
Olav Klingenberg
No abstract text is available yet for this article.
February 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27937006/combination-of-real-time-pcr-and-sequencing-to-detect-multiple-clinically-relevant-genetic-variations-in-the-lactase-gene
#15
Claus Lohman Brasen, Lone Frischknecht, Dorthe Ørnskov, Lotte Andreasen, Jonna Skov Madsen
BACKGROUND: Lactase persistence is an autosomal dominant trait commonly distributed in Europe as well as some parts of east Africa and the Arabian Peninsula. Using real-time PCR to detect the -13910C > T variant common in the European population is a reliable analysis although other variants in the probe-binding site may cause errors in analysis. The aim of this study was to determine the prevalence of the variants in a Danish cohort examined for lactose intolerance as well as to improve the real-time PCR analysis for detection of the different variants...
February 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27905219/early-24-hour-blood-pressure-response-to-roux-en-y-gastric-bypass-in-obese-patients
#16
Julie S Pedersen, Christian Borup, Morten Damgaard, Vindhya D Yatawara, Andrea K Floyd, Niels Gadsbøll, Peter K Bonfils
Recently, it has been proposed, that the blood pressure (BP) lowering effect of gastric bypass surgery not only is explained by the obtained weight loss, but that the anatomical rearrangement of the gut after 'malabsorptive' surgical techniques, such as the laparoscopic Roux-en-Y gastric bypass (LRYGB), may affect BP through a change in a putative 'entero-renal' axis. If so one could anticipate a reduction in BP even before a noticeable weight loss was obtained. The purpose of the present study was to investigate the very early BP response to LRYGB surgery...
February 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27905210/erythrocyte-fatty-acid-composition-does-not-influence-levels-of-free-bioavailable-and-total-25-hydroxy-vitamin-d
#17
Martin Carlsson, Ingela Nilsson, Lars Brudin, Siv-Ping Von, Pär Wanby
In vitro, mono- and polyunsaturated fatty acids (FAs) may decrease the binding affinity of vitamin D metabolites for vitamin D-binding protein, which in turn may influence their bioavailability. FAs incorporated as phospholipids in erythrocyte (ery-) cell membranes reflect dietary intake. The purpose of this study was to investigate ery-FA composition in relation to markers for vitamin D. In healthy females (age 22.6 ± 2.0 years) total 25(OH)D was measured by LC-MS/MS (n = 78), free 25(OH)D with ELISA (n = 64 of 78), and bioavailable 25(OH)D was calculated...
February 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27826984/serum-serotonin-concentration-associated-with-bone-mineral-density-in-chinese-postmenopausal-women
#18
Qiu-Shi Wei, Zhen-Qiu Chen, Xin Tan, Lu-Chen Kang, Xiao-Bing Jiang, Jiang Liang, Wei He, Wei-Min Deng
Recent studies have shown that circulating serotonin plays a potential role in bone metabolism. However, conflicting results have been reported for the relationship between serum serotonin concentrations and bone mineral density (BMD). We investigated whether the serum serotonin concentrations related to BMD in Chinese postmenopausal women. Serum serotonin and bone turnover concentrations of 117 premenopausal women and 262 asymptomatic postmenopausal women were analyzed by enzyme-linked immunosorbent assay...
February 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27768851/analysis-of-hba1c-on-an-automated-multicapillary-zone-electrophoresis-system
#19
Niclas Rollborn, Torbjörn Åkerfeldt, Gunnar Nordin, Xiao Yan Xu, Aleksandra Mandic-Havelka, Lars-Olof Hansson, Anders Larsson
Hemoglobin A1c (HbA1c) is a frequently requested laboratory test and there is thus a need for high throughput instruments for this assay. We evaluated a new automated multicapillary zone electrophoresis instrument (Capillarys 3 Tera, Sebia, Lisses, France) for analysis of HbA1c in venous samples. Routine requested HbA1c samples were analyzed immunologically on a Roche c6000 instrument (n = 142) and then with the Capillarys 3 Tera instrument. The Capillarys 3 Tera instrument performed approximately 70 HbA1c tests/hour...
February 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27762145/elevated-prostate-specific-antigen-and-reduced-10-year-survival-among-a-cohort-of-danish-men-consecutively-referred-from-primary-care-to-an-urological-department-during-2005-2006
#20
Thore Hillig, Torben Kjær Nielsen, Steen Ingemann Hansen, Ann-Britt Nygaard, György Sölétormos
It remains unclear whether total prostate specific antigen (tPSA) or complex PSA (cPSA) has the best diagnostic performance. Additionally, the utility of percentage free PSA (%fPSA) is still debated. Our objectives were to compare the diagnostic performances of tPSA, cPSA, and %fPSA among patients referred from GP to an Urological Specialist and to investigate prognostic factors and survival in the cohort. A total of 1261 consecutive male patients without previously known prostate cancer (PCa) were referred to the same Department of Urology during June 2005 to August 2006...
February 2017: Scandinavian Journal of Clinical and Laboratory Investigation
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