Are the currently used reference intervals for creatine kinase (CK) reflecting the general population? The Tromsø Study.

abstract：BACKGROUND:The presence of preanalytical mistakes (PM) in samples from primary care centres (PCC) is a widely studied topic. Different correcting strategies have been proposed, with variable success. We planned a series of multidisciplinary sessions for clinical update, with the aim to decrease PM rates in samples from...

journal_title：Clinical chemistry and laboratory medicine

authors： Romero A,Gómez-Salgado J,Gómez-Fernández JA,Cobos A,Ruiz-Frutos C

更新日期：2017-10-26 00:00:00

abstract：BACKGROUND:The differential diagnosis between bacterial and viral meningitis is not easy in some cases. Cerebrospinal fluid (CSF) analysis is essential for establishing this diagnosis. The objectives were to quantitate lactic acid (LA) concentrations in bacterial and viral meningitis, and other central nervous system (...

journal_title：Clinical chemistry and laboratory medicine

authors： de Almeida SM,Faria FL,de Goes Fontes K,Buczenko GM,Berto DB,Raboni SM,Vidal LR,Nogueira MB

更新日期：2009-01-01 00:00:00

abstract：:Cytokines are key mediators in cell regulation and communication. The concentration of these proteins can rapidly and importantly increase during severe clinical situations. However, current techniques are not adapted to stat measurement, thus making their clinical use limited. In this context, the commercialization o...

journal_title：Clinical chemistry and laboratory medicine

authors： Berthier F,Lambert C,Genin C,Bienvenu J

更新日期：1999-05-01 00:00:00

abstract：BACKGROUND:Serum immunoglobulin free light chains (FLC) are secreted into circulation by plasma cells as a by-product of immunoglobulin production. In a healthy individual the population of FLC is polyclonal as no single cell is secreting more FLC than the total immunoglobulin secreting cell population. In a person wit...

journal_title：Clinical chemistry and laboratory medicine

authors： Barnidge DR,Dispenzieri A,Merlini G,Katzmann JA,Murray DL

更新日期：2016-06-01 00:00:00

abstract：BACKGROUND:Interleukins, interferons and oxidative DNA products are important biomarkers assessing the inflammations and tissue damages caused by toxic materials in the body. We tried to evaluate distributions, reference values and age related changes of blood levels of inflammatory cytokines, C-reactive protein (CRP),...

journal_title：Clinical chemistry and laboratory medicine

authors： Murase T,Kitamura H,Kochi T,Terunuma N,Kurosaki S,Hata K,Yanagi N,Uchino B,Kitahara K,Morimoto Y,Kasai H,Sasaki T,Ogami A,Higashi T

更新日期：2013-02-01 00:00:00

abstract：BACKGROUND:The plasma total and low-density lipoprotein-cholesterol (LDL-C) levels that are used as diagnostic criteria for familial hypercholesterolaemia (FH) probands in the general population are too stringent for use in relatives, given the higher prior probability of a first-degree relative being FH (50% vs. 1/500...

journal_title：Clinical chemistry and laboratory medicine

authors： Starr B,Hadfield SG,Hutten BA,Lansberg PJ,Leren TP,Damgaard D,Neil HA,Humphries SE

更新日期：2008-01-01 00:00:00

abstract：Objectives:Colorectal cancer (CRC) screening using stool samples is now in routine use where tumor DNA methylation analysis for leading markers such as NDRG4 and SDC2 is an integral part of the test. However, processing stool samples for reproducible and efficient extraction of human genomic DNA remains a bottleneck fo...

journal_title：Clinical chemistry and laboratory medicine

authors： Jin S,Ye Q,Hong Y,Dai W,Zhang C,Liu W,Guo Y,Zhu D,Zhang Z,Chen S,Wang Y,Li D,Ma W,Yang Z,Li J,Zheng Z,Luan J,Wu X,Jiang F,Xu C,Ding C

更新日期：2020-07-16 00:00:00

abstract：BACKGROUND:Filamin myopathy is a neuromuscular disorder manifesting with predominantly limb-girdle muscle weakness and in many patients with diaphragm paralysis and cardiomyopathy, caused by mutations in the filamin C (FLNC) gene. Molecular diagnosis of filamin myopathy based on direct DNA sequencing of coding exons is...

journal_title：Clinical chemistry and laboratory medicine

authors： Odgerel Z,van der Ven PF,Fürst DO,Goldfarb LG

更新日期：2010-10-01 00:00:00

abstract：:Background Liquid chromatography-tandem mass spectrometry (LC-MS/MS) offers advantages over immunoassay due to its increased specificity and ability to multiplex metabolites within a single run. Wide scale adoption of LC-MS/MS in routine clinical laboratories is restricted in part due to the high level of technical ex...

journal_title：Clinical chemistry and laboratory medicine

authors： Benton SC,Tetteh GK,Needham SJ,Mücke J,Sheppard L,Alderson S,Ruppen C,Curti M,Redondo M,Milan AM

更新日期：2020-06-25 00:00:00

abstract：:Since PSA is supposed to play an active role in the progression of prostate cancer, we applied a quantitative RT-PCR to measure the absolute levels of prostate-specific antigen (PSA) mRNA expression in benign and malignant prostatic tissue. Consecutive fine needle prostate biopsy material from 59 patients (43 with pro...

journal_title：Clinical chemistry and laboratory medicine

authors： Gelmini S,Tricarico C,Petrone L,Forti G,Amorosi A,Dedola GL,Serio M,Pazzagli M,Orlando C

更新日期：2003-03-01 00:00:00

abstract：:The formation of superoxide partially accounts for the well-known oxygen enhancement of radiation-induced biochemical changes and cell damage. Radioprotective effects of copper (II), manganese (IV) or vanadium (IV) complexes, of superoxide dismutase-mimetic activity, on body weight, survival rate and some biochemical ...

journal_title：Clinical chemistry and laboratory medicine

authors： Abou-Seif MA,El-Naggar MM,El-Far M,Ramadan M,Salah N

更新日期：2003-07-01 00:00:00

abstract：:Complexity, cost, and content are three important factors that can impede translation of clinical protein mass spectrometry (MS) tests at a larger scale. Complexity stems from the many components/steps involved in bottom-up protein MS workflows, making them significantly more complicated than enzymatic immunoassays (E...

journal_title：Clinical chemistry and laboratory medicine

authors： Nedelkov D,Hu Y

更新日期：2020-06-25 00:00:00

abstract：:The measurement of glycated haemoglobin has become centrally important in the monitoring of glycaemic control in the patient with diabetes. A number of analytical techniques have been described to measure this important haemoglobin fraction, and the fraction measured depends on the technique used; this has resulted in...

journal_title：Clinical chemistry and laboratory medicine

authors： John WG

更新日期：2003-09-01 00:00:00

abstract：:Background Aberrant kallikrein activity is observed in a number of inflammatory dermatoses. Up-regulation of kallikrein-5 (KLK5) activity leads to uncontrolled skin desquamation and cleavage of proteinase-activated receptor-2 (PAR2), causing the release of pro-inflammatory cytokines and disruption of epidermal barrier...

journal_title：Clinical chemistry and laboratory medicine

authors： Di Paolo CT,Filippou PS,Yu Y,Poda G,Diamandis EP,Prassas I

更新日期：2019-10-25 00:00:00

abstract：:Background Delta check is widely used for detecting specimen mix-ups. Owing to the inadequate specificity and sparseness of the absolute incidence of mix-ups, the positive predictive value (PPV) of delta check is considerably low as it is labor consuming to identify true mix-up errors among a large number of false ale...

journal_title：Clinical chemistry and laboratory medicine

authors： Mitani T,Doi S,Yokota S,Imai T,Ohe K

更新日期：2020-02-25 00:00:00

abstract：BACKGROUND:The clinical relevance of chromogranin A (CgA) concentrations depends on the analytical performance of the assay. The goal of the present study was to define the clinical involvements in CgA calibration models by evaluating the confidence intervals (CIs) for values from patients who were undergoing monitorin...

journal_title：Clinical chemistry and laboratory medicine

authors： Ferraro S,Marano G,Ciardi L,Vendramin C,Bongo AS,Bellomo G,Boracchi P,Biganzoli EM

更新日期：2009-01-01 00:00:00

abstract：:Small dense low-density lipoproteins (LDLs) have been associated with coronary heart disease (CHD) and type 2 diabetes in previous studies. However, the significance of small dense LDLs as a coronary risk factor for subjects with type 2 diabetes remains unclear. We measured mean LDL particle diameter by gradient gel e...

journal_title：Clinical chemistry and laboratory medicine

authors： Yoon Y,Song J,Park HD,Park KU,Kim JQ

更新日期：2005-01-01 00:00:00

abstract：:Biochemical measurements in "special fluids" are complicated with the problem of reference intervals. Reference intervals are difficult to establish for these types of samples since they are usually only collected in patients with clinical suspicion of disease. Determination of neurotransmitter metabolites in cerebros...

journal_title：Clinical chemistry and laboratory medicine

authors： Dhondt JL

更新日期：2004-01-01 00:00:00

abstract：:Since serum and plasma D-dimer concentrations correlate very well, we evaluated the comparability of other haemostasis activation markers in plasma and serum. Prothrombin fragment F1+2, fibrin monomer and D-dimer concentrations were measured with commercially available immunoassays in serum and plasma. Serum to plasma...

journal_title：Clinical chemistry and laboratory medicine

authors： Korte W,Riesen WF

更新日期：2001-07-01 00:00:00

abstract：BACKGROUND:Metabolic syndrome is closely related to several disturbances in lipid and lipoprotein metabolism. The aim of this study was to determine the association between apolipoprotein E (apoE) genotypes and the risk of metabolic syndrome and/or coronary heart disease complications. METHODS:The study included 279 s...

journal_title：Clinical chemistry and laboratory medicine

authors： Sima A,Iordan A,Stancu C

更新日期：2007-01-01 00:00:00

abstract：BACKGROUND:Gestational age-specific reference values are essential for the accurate interpretation of haemostatic tests during pregnancy. METHODS:Our 1-year prospective study included 40 healthy pregnant women with a median age of 30 (range 22-40) years; the subjects were followed in order to establish the gestational...

journal_title：Clinical chemistry and laboratory medicine

authors： Kovac MK,Lalic-Cosic SZ,Dmitrovic JM,Djordjevic VJ,Radojkovic DP

更新日期：2015-11-01 00:00:00

abstract：:Background Non-small cell lung cancer (NSCLC) patients benefit from targeted therapies both in first- and second-line treatment. Nevertheless, molecular profiling of lung cancer tumors after first disease progression is seldom performed. The analysis of circulating tumor DNA (ctDNA) enables not only non-invasive bioma...

journal_title：Clinical chemistry and laboratory medicine

authors： Provencio M,Pérez-Barrios C,Barquin M,Calvo V,Franco F,Sánchez E,Sánchez R,Marsden D,Cristóbal Sánchez J,Martin Acosta P,Laza-Briviesca R,Cruz-Bermúdez A,Romero A

更新日期：2020-01-28 00:00:00

abstract：BACKGROUND:Quantification of serum free light chains (FLC) is important in the diagnosis of plasma cell diseases where an abnormal kappa:lambda ratio infers a population of monoclonal plasma cells. The Freelite™ and N Latex assays have been validated in populations without kidney disease but there is a paucity of data ...

journal_title：Clinical chemistry and laboratory medicine

authors： Kennard A,Hawley C,Tate J,Klingberg S,Pretorius C,Hutchison C,Mollee P

更新日期：2016-06-01 00:00:00

abstract：BACKGROUND:Recently published data identified bone-specific alkaline phosphatase (BALP) as a good marker of bone formation in different bone diseases and osteoporosis. Two methods are available for BALP determination: one measures enzyme activity, the other its mass concentration. We compared results for BALP activity ...

journal_title：Clinical chemistry and laboratory medicine

authors： Avbersek-Luznik I,Gmeiner Stopar T,Marc J

更新日期：2007-01-01 00:00:00

abstract：BACKGROUND:The calibration of Jaffe method for serum creatinine using one serum-based standard complemented with artificial matrix compensating standard's Jaffe-interfering substances allows two-point calibration with results well comparable with enzymatic methods. METHOD:Spectrophotometry was used. RESULTS:Jaffe pro...

journal_title：Clinical chemistry and laboratory medicine

authors： Chromý V,Rozkosná K,Sedlák P

更新日期：2008-01-01 00:00:00

abstract：BACKGROUND:Celiac disease (CD) is an immune-mediated disorder of the small bowel in which gluten and related cereal ingestion leads to chronic inflammation and damage to the small bowel mucosa in genetically susceptible individuals. The presence of IgA type tissue-transglutaminase antibodies (IgA-anti-tTG) in individua...

journal_title：Clinical chemistry and laboratory medicine

authors： Ress K,Harro J,Uibo O,Uibo R

更新日期：2011-06-01 00:00:00

abstract：:In order to investigate possible ethnic differences in genetic and environmental determinants, we investigated several cardiovascular disease-associated genetic variations in successful ageing populations of France (Nancy) and China (Hong Kong). Allelic frequencies of these genetic variations were compared between hea...

journal_title：Clinical chemistry and laboratory medicine

authors： Xia Y,Baum L,Pang CP,Siest G,Visvikis S

更新日期：2005-01-01 00:00:00

abstract：BACKGROUND:The presence of IgA antibodies to tissue transglutaminase (anti-tTg) is associated with variable risk for celiac disease. The use of common multiples of the upper limit of normal (ULN) has been suggested to optimize diagnostic pathways as well as improve harmonization between assays. METHODS:The characteris...

journal_title：Clinical chemistry and laboratory medicine

authors： Suh-Lailam BB,Davis KW,Tebo AE

更新日期：2016-02-01 00:00:00

abstract：:A body of evidence has been accumulated to demonstrate that current practice is not sufficiently safe for several stages of central laboratory testing. In particular, while analytical and perianalytical steps that take place within the laboratory are subjected to quality control procedures, this is not the case for se...

journal_title：Clinical chemistry and laboratory medicine

authors： Kay J

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND:The long noncoding RNAs (lncRNAs) have gradually been reported to be an important class of RNAs with pivotal roles in regulation of gene expression, and thus are involved in multitudinous human complex diseases. However, the biological functions and precise mechanisms of the majority of lncRNAs are still poo...

journal_title：Clinical chemistry and laboratory medicine

authors： Zhuo Y,Zeng Q,Zhang P,Li G,Xie Q,Cheng Y

更新日期：2017-01-01 00:00:00