Toward standardization of carbohydrate-deficient transferrin (CDT) measurements: I. Analyte definition and proposal of a candidate reference method.

abstract：BACKGROUND:Antinuclear autoantibody determination relies on an initial screening step using immunofluorescence on HEp2 cells. This may be followed by anti-deoxyribonucleic acid (DNA) determination, if the fluorescence of nuclei is homogeneous. We assessed the validity of a restricted algorithm and compared this to a mo...

journal_title：Clinical chemistry and laboratory medicine

authors： Servais G,Karmali R,Guillaume MP,Badot V,Duchateau J,Corazza F

更新日期：2009-01-01 00:00:00

abstract：BACKGROUND:An effective quality control (QC) program requires the establishment of control limits within which the results of the QC sample is expected to fall. Traditionally, the mean plus/minus two standard deviations calculated for a set of QC sample results is used to establish control limits. Allowable total error...

journal_title：Clinical chemistry and laboratory medicine

authors： Dimech W,Vincini G,Karakaltsas M

更新日期：2015-02-01 00:00:00

abstract：BACKGROUND:Whereas N-terminal pro-brain natriuretic peptide (NT-proBNP) is approved for risk stratification of patients with acute coronary syndromes (ACS), short-term temporal changes in NT-proBNP concentrations and the optimal time points for sampling are not clear. The purpose of this study was to better define the ...

journal_title：Clinical chemistry and laboratory medicine

authors： Buchner S,Debl K,Barlage S,Griese D,Fredersdorf S,Jeron A,Lubnow M,Müller T,Muders F,Holmer S,Riegger GA,Luchner A

更新日期：2010-06-01 00:00:00

abstract：BACKGROUND:The possible effects of the uncoupling protein-1 (UCP-1) gene -3826A/G polymorphism on hypertension (HT) have yet to be elucidated. METHODS:A total of 578 Japanese subjects (231 males and 347 females, mean age 58.4 years) were enrolled in the study to investigate the association between HT and the -3826A/G ...

journal_title：Clinical chemistry and laboratory medicine

authors： Kotani K,Sakane N,Saiga K,Tsuzaki K,Shimohiro H,Tabata M,Kurozawa Y

更新日期：2007-01-01 00:00:00

abstract：BACKGROUND:To date, no practical tools are available to obtain optimal settings for moving average (MA) as a continuous analytical quality control instrument. Also, there is no knowledge of the true bias detection properties of applied MA. We describe the use of bias detection curves for MA optimization and MA validati...

journal_title：Clinical chemistry and laboratory medicine

authors： van Rossum HH,Kemperman H

更新日期：2017-02-01 00:00:00

abstract：BACKGROUND:Thyroid stimulating hormone (TSH) receptor autoantibodies (TRAb) are pathogenetic and diagnostic hallmarks of Graves' disease (GD). Three varieties of TRAb have been described: stimulating (S-TRAb), blocking (B-TRAb), and apoptotic (A-TRAb) autoantibodies. Very recently, the first immunoassay method (Immulit...

journal_title：Clinical chemistry and laboratory medicine

authors： Tozzoli R,D'Aurizio F,Villalta D,Giovanella L

更新日期：2017-01-01 00:00:00

abstract：:Background Some clinical chemistry measurement methods are vulnerable to interference if hemolyzed serum samples are used. The aims of this study were: (1) to obtain updated information about how hemolysis affects clinical chemistry test results on different instrument platforms used in Nordic laboratories, and (2) to...

journal_title：Clinical chemistry and laboratory medicine

authors： Gidske G,Aakre KM,Rustad P,Sandberg S,Norling A,Pelanti J,Henriksen G,Thorsteinsdottir I,Kristensen GBB

更新日期：2019-10-25 00:00:00

abstract：BACKGROUND:Faecal immunochemical tests (FIT) are becoming widely used in colorectal cancer (CRC) screening. Availability of data on faecal haemoglobin concentrations (f-Hb) in three countries prompted an observational study on sex and age and the transferability of data across geography. METHODS:Single estimates of f-...

journal_title：Clinical chemistry and laboratory medicine

authors： Fraser CG,Rubeca T,Rapi S,Chen LS,Chen HH

更新日期：2014-08-01 00:00:00

abstract：:The acute-phase "panproteinase" inhibitor alpha2-macroglobulin (alpha2M), a protein involved in inflammatory reactions, has been identified in amyloid plaques in Alzheimer's disease (AD). In addition, alpha2M is involved in AD susceptibility at the genetic level, and a deletion polymorphism at the a2M gene has been fo...

journal_title：Clinical chemistry and laboratory medicine

authors： Scacchi R,Ruggeri M,Gambina G,Martini MC,Corbo RM

更新日期：2002-04-01 00:00:00

abstract：BACKGROUND:Although many reports have elucidated pathophysiological characteristics of abnormal bone metabolism in patients with type 2 diabetes mellitus (DT2), determinants of bone mineral density (BMD) in patients with DT2 are still controversial. METHODS:We examined 168 Belarussian men 45-60 years of age. Plasma to...

journal_title：Clinical chemistry and laboratory medicine

authors： Vasilkova O,Mokhort T,Sanec I,Sharshakova T,Hayashida N,Takamura N

更新日期：2011-01-01 00:00:00

abstract：:Objectives Our recent survey of 44 mass spectrometry laboratories across 17 countries identified variation in internal standard (IS) choice for the measurement of serum/plasma 17α-hydroxyprogesterone (17OHP) by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The choice of IS may contribute to inter-method v...

journal_title：Clinical chemistry and laboratory medicine

authors： Loh TP,Ho CS,Hartmann MF,Zakaria R,Lo CWS,van den Berg S,de Rijke YB,Cooke BR,Hoad K,Graham P,Davies SR,Mackay LG,Wudy SA,Greaves RF

更新日期：2020-09-25 00:00:00

abstract：:Method comparisons are indispensable tools for the extensive validation of analytic procedures. Laboratories often only want to know whether an established procedure (x-method) can be replaced by another one (y-method) without interfering with diagnostic purposes. Then split patients' samples are analyzed more or less...

journal_title：Clinical chemistry and laboratory medicine

authors： Haeckel R,Wosniok W,Al Shareef N

更新日期：2011-11-01 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：:The drug-metabolizing cytochrome P450 (CYP) enzyme CYP2D6 is involved in the metabolism of several clinically important drugs. So far more than 50 different CYP2D6 allelic variants have been described, and thus there is an increased need for routine high-performance liquid chromatography (HPLC) methods for the evaluat...

journal_title：Clinical chemistry and laboratory medicine

authors： Dorado P,Berecz R,Cáceres MC,González I,Cobaleda J,Llerena A

更新日期：2005-01-01 00:00:00

abstract：:The detection and quantification of amyloidogenic monoclonal light chains are necessary for the diagnosis and evaluation of response to treatment in AL amyloidosis. However, the amyloid clone is often small and difficult to detect. We report the case of a 68-year-old man who was referred to our Center in April 2013 af...

journal_title：Clinical chemistry and laboratory medicine

authors： Milani P,Valentini V,Ferraro G,Basset M,Russo F,Foli A,Palladini G,Merlini G

更新日期：2016-06-01 00:00:00

abstract：BACKGROUND:This study compared automated vs. manual tissue grinding in terms of RNA yield obtained from oral mucosa biopsies. METHODS:A total of 20 patients undergoing uvulectomy for sleep-related disorders and 10 patients undergoing biopsy for head and neck squamous cell carcinoma were enrolled in the study. Samples ...

journal_title：Clinical chemistry and laboratory medicine

authors： Van der Vorst S,Dekairelle AF,Irenge L,Hamoir M,Robert A,Gala JL

更新日期：2009-01-01 00:00:00

abstract：BACKGROUND:Quantification of glycated hemoglobin (HbA1c) is a challenge in patients with hemoglobin (Hb) variants. We evaluated the impact of various Hb variants on five routine HbA1c assays by comparing with the IFCC reference measurement procedure (RMP). METHODS:Whole blood samples showing warning flags or no result...

journal_title：Clinical chemistry and laboratory medicine

authors： Yun YM,Ji M,Ko DH,Chun S,Kwon GC,Lee K,Song SH,Seong MW,Park SS,Song J

更新日期：2017-07-26 00:00:00

abstract：BACKGROUND:There are several methods for calculating serum osmolality, and their accordance with measured osmolality is the subject of controversy. METHODS:The concentrations of sodium, potassium, glucose, blood urea nitrogen (BUN) and osmolalities of 210 serum samples were measured. Two empirical equations were deduc...

journal_title：Clinical chemistry and laboratory medicine

authors： Rasouli M,Kalantari KR

更新日期：2005-01-01 00:00:00

abstract：BACKGROUND:Prostate-specific antigen (PSA) is used as an outcome measure for relapsed disease in prostate cancer. Nonetheless, there are considerable concerns about its indiscriminate use as a surrogate endpoint for cell growth or survival. We hypothesized that treatment with a luteinizing hormone releasing hormone (LH...

journal_title：Clinical chemistry and laboratory medicine

authors： Wenisch JM,Mayr FB,Spiel AO,Radicioni M,Jilma B,Jilma-Stohlawetz P

更新日期：2014-03-01 00:00:00

abstract：:We examined insulin sensitivity and secretion, together with the levels of selected glucoregulatory hormones, in 15 female patients with severe hypothyroidism (H) and during subsequent thyroid hormone replacement therapy (HRT) using the euglycaemic hyperinsulinaemic clamp technique. Insulin action, as evaluated by glu...

journal_title：Clinical chemistry and laboratory medicine

authors： Stanická S,Vondra K,Pelikánová T,Vlcek P,Hill M,Zamrazil V

更新日期：2005-01-01 00:00:00

abstract：:Protein-coding genes comprise only 3% of the human genome, while the genes that are transcribed into RNAs but do not code for proteins occupy majority of the genome. Once considered as biological darker matter, non-coding RNAs are now being recognized as critical regulators in cancer genome. Among the many types of no...

journal_title：Clinical chemistry and laboratory medicine

authors： Ling H,Girnita L,Buda O,Calin GA

更新日期：2017-05-01 00:00:00

abstract：BACKGROUND:Cost-impact models have indicated that in the USA, the use of antibiotic stewardship protocols based on procalcitonin (PCT) levels for patients with suspected acute respiratory tract infection results in cost savings. Our objective was to assess the cost impact of adopting PCT testing among patients with acu...

journal_title：Clinical chemistry and laboratory medicine

authors： Stojanovic I,Schneider JE,Wei L,Hong Z,Keane C,Schuetz P

更新日期：2017-03-01 00:00:00

abstract：:In every area of science workers are finding increasing difficulty in managing the volume of available data. In medicine, the accelerating pace has the worrisome overtones of our failing to provide up-to-date care for our patients. In other information-intensive areas, we rely heavily on software that manages much of ...

journal_title：Clinical chemistry and laboratory medicine

authors： Ritchie RF

更新日期：2001-11-01 00:00:00

abstract：:Neopterin is elevated in infections, autoimmune diseases and post-transplant. Recently neopterin elevation was linked to stress response and malignancy. To determine early changes of serum neopterin caused by surgical stress and to investigate their association with other inflammatory markers and with malignancy, we m...

journal_title：Clinical chemistry and laboratory medicine

authors： Jerin A,Pozar-Lukanovic N,Sojar V,Stanisavljevic D,Paver-Erzen V,Osredkar J

更新日期：2002-07-01 00:00:00

abstract：BACKGROUND:Rivaroxaban, a direct Xa inhibitor, is one of the new oral antithrombotic agents for which laboratory monitoring is thought to be unnecessary in most cases due to predictable pharmacokinetics. Circumstances are conceivable, however, in which reliable laboratory testing of Rivaroxaban is desirable. The aim of...

journal_title：Clinical chemistry and laboratory medicine

authors： Molenaar PJ,Dinkelaar J,Leyte A

更新日期：2012-10-01 00:00:00

abstract：BACKGROUND:Heparin is the standard drug for anticoagulation treatment and is used in many cardiac surgical interventions to prevent blood clotting. The anticoagulation status is controlled by various clotting tests. However, these tests depend on parameters like temperature, hemodilution etc. and are thus not applicabl...

journal_title：Clinical chemistry and laboratory medicine

authors： Haselbach S,Maurer J,Vogel V,Harder S,Weber CF,Baykut D,Meininger D,Keller H,Moritz A,Mäntele W

更新日期：2013-10-01 00:00:00

abstract：BACKGROUND:High-dose biotin therapy is beneficial in progressive multiple sclerosis (MS) and is expected to be adopted by a large number of patients. Biotin therapy leads to analytical interference in many immunoassays that utilize streptavidin-biotin capture techniques, yielding skewed results that can mimic various e...

journal_title：Clinical chemistry and laboratory medicine

authors： Piketty ML,Prie D,Sedel F,Bernard D,Hercend C,Chanson P,Souberbielle JC

更新日期：2017-05-01 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:The objective of this study was to examine the diagnostic accuracy of high-sensitivity cardiac troponin T (hs-cTnT) for acute myocardial infarction (AMI) in patients with renal insufficiency, since this population has a high incidence of non-AMI elevations of hs-cTnT. METHODS:In this prospective study, we e...

journal_title：Clinical chemistry and laboratory medicine

authors： Huang H,Zhu S,Wang W,Yi H,Du X,Nie X,He Y,Song H,Miao Q,Wang L,Li G

更新日期：2015-04-01 00:00:00

abstract：BACKGROUND:The arginine derivatives asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA) interfere with endothelial nitric oxide synthesis. Plasma ADMA and SDMA have been shown to be risk factors for cardiovascular disease and/or kidney function deterioration in a variety of patient populations. ME...

journal_title：Clinical chemistry and laboratory medicine

authors： Wang S,Vicente FB,Miller A,Brooks ER,Price HE,Smith FA

更新日期：2007-01-01 00:00:00