Matrix effects in clinical immunoassays and the effect of preheating and cooling analytical samples.

abstract：BACKGROUND:Usually, laboratory diagnostics of hereditary hemoglobin disorders is fairly straightforward. Sometimes, however, correct diagnosis can be difficult. In this study, we describe a family with multiple mutations and sequence variations in the alpha- and beta-globin gene clusters. METHODS:Hemocytometry results...

journal_title：Clinical chemistry and laboratory medicine

authors： de Vooght KM,van Wijk R,Rijksen G,van Solinge WW

更新日期：2008-01-01 00:00:00

abstract：:There are large differences in the use of laboratory tests between hospitals in Sweden. These differences are not only due to differences between the patients treated but also to differences in practice. Use of laboratory test seems to reflect local traditions to a large extent. These large variations in practice are ...

journal_title：Clinical chemistry and laboratory medicine

authors： Larsson A,Palmer M,Hultén G,Tryding N

更新日期：2000-05-01 00:00:00

abstract：:We compared six routinely employed immunoassay kits: Architect i2000 and AxSYM, Abbott Laboratories; Elecsys 2010, Roche Diagnostics; ELSA, CIS-BioInternational; Immulite 1, Diagnostic Products Corporation; and IRMA-mat, Byk-Sangtec Diagnostica. Using all analytical systems, we measured identical groups of clinical sa...

journal_title：Clinical chemistry and laboratory medicine

authors： Stern P,Friedecky B,Bartos V,Bezdickova D,Vavrova J,Uhrova J,Rozprimova L,Zima T,Palicka V

更新日期：2001-12-01 00:00:00

abstract：BACKGROUND:Mutations in BRCA1 and BRCA2 genes are associated with family predisposition to breast and ovarian cancer. Novel screening methods are required for efficient and rapid detection of sequence variants in cancer patients and their family members. METHODS:The screening for variants in the breast and ovarian can...

journal_title：Clinical chemistry and laboratory medicine

authors： Cvok ML,Cretnik M,Musani V,Ozretic P,Levanat S

更新日期：2008-01-01 00:00:00

abstract：BACKGROUND:When performed erroneously, the venous blood specimen collection (VBSC) practice steps patient identification, test request management and test tube labeling are at high risk to jeopardize patient safety. VBSC educational programs with the intention to minimize risk of harm to patients are therefore needed. ...

journal_title：Clinical chemistry and laboratory medicine

authors： Willman B,Grankvist K,Bölenius K

更新日期：2018-10-25 00:00:00

abstract：BACKGROUND:Laboratory reference intervals are not necessarily reflecting the range in the background population. This study compared creatine kinase (CK) reference intervals calculated from a large sample from a Norwegian population with those elaborated by the Nordic Reference Interval Project (NORIP). It also assesse...

journal_title：Clinical chemistry and laboratory medicine

authors： Lilleng H,Johnsen SH,Wilsgaard T,Bekkelund SI

更新日期：2011-11-10 00:00:00

abstract：BACKGROUND:Established general risk score models for intensive care patients incorporate several clinical and laboratory data. However, the collection, documentation and classification of clinical data are time-consuming, incur labor-related costs, and are dependent on the experience of the examiner. Therefore, in the ...

journal_title：Clinical chemistry and laboratory medicine

authors： Stachon A,Segbers E,Hering S,Kempf R,Holland-Letz T,Krieg M

更新日期：2008-01-01 00:00:00

abstract：:The importance of nutrition factors such as calcium, vitamin D and vitamin K for the integrity of the skeleton is well known. Moreover, bone health is positively influenced by certain elements (e.g., zinc, copper, fluorine, manganese, magnesium, iron and boron). Deficiency of these elements slows down the increase of ...

journal_title：Clinical chemistry and laboratory medicine

authors： Zofková I,Nemcikova P,Matucha P

更新日期：2013-08-01 00:00:00

abstract：BACKGROUND:High-density lipoprotein (HDL) is believed to be protective against coronary heart disease (CHD). HDL is comprised of different subfractions. Of these, HDL 2b is believed to be the most important in preventing CHD. Current methods for HDL subfraction measurements are not standardized and often exhibit poor a...

journal_title：Clinical chemistry and laboratory medicine

authors： Yang DH,Konigshofer Y,Dike J,Chang E,Mueller O

更新日期：2010-06-01 00:00:00

abstract：:Heart-type fatty acid-binding protein (H-FABP) is a low molecular weight cytoplasmic protein and present abundantly in the myocardium. When the myocardium is injured, as in the case of myocardial infarction, low molecular weight cytoplasmic proteins including H-FABP are released into the circulation and H-FABP is dete...

journal_title：Clinical chemistry and laboratory medicine

authors： Okamoto F,Sohmiya K,Ohkaru Y,Kawamura K,Asayama K,Kimura H,Nishimura S,Ishii H,Sunahara N,Tanaka T

更新日期：2000-03-01 00:00:00

abstract：:It has been well reported over recent years that most errors within the total testing process occur in the pre-analytical phase (46%-68.2%), an area that is usually outside of the direct control of the laboratory and which includes sample collection (phlebotomy). National and international (WHO, CLSI) guidelines recom...

journal_title：Clinical chemistry and laboratory medicine

authors： Cornes M,van Dongen-Lases E,Grankvist K,Ibarz M,Kristensen G,Lippi G,Nybo M,Simundic AM,Working Group for Preanalytical Phase (WG-PRE), European Federation of Clinical Chemistry and Laboratory Medicine (EFLM).

更新日期：2017-01-01 00:00:00

abstract：BACKGROUND:Gastrointestinal toxicity is the principal toxicity of chemoradiation in the treatment of rectal carcinoma. The assessment of this toxicity still relies mostly on the symptoms reported by the patient. METHODS:Plasma citrulline, serum neopterin and urinary neopterin were followed weekly in 49 patients with r...

journal_title：Clinical chemistry and laboratory medicine

authors： Zezulová M,Bartoušková M,Hlídková E,Adam T,Kujovská Krčmová L,Červinková B,Solichová D,Zlevorová M,Cwiertka K,Friedecký D,Vrána D,Melichar B

更新日期：2016-02-01 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：:Inflammatory bowel diseases (IBDs), which comprise the two major clinical subtypes, Crohn's disease and ulcerative colitis, incur high morbidity and potential mortality. The present study reviews data on the pathogenesis and diagnosis of IBDs. The pathogenesis depends on complex interactions between susceptibility gen...

journal_title：Clinical chemistry and laboratory medicine

authors： Basso D,Zambon CF,Plebani M

更新日期：2014-04-01 00:00:00

abstract：:It is well-established that more than 8% of patients examined for vitamin B12 deficiency unexpectedly have increased plasma levels of the vitamin, but so far there are no guidelines for the clinical interpretation of such findings. In this review, we summarise known associations between high plasma cobalamin and disea...

journal_title：Clinical chemistry and laboratory medicine

authors： Arendt JF,Nexo E

更新日期：2013-03-01 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：:For several years it has been possible to routinely detect numerous mutations in the human genome by different methods. The most common technique is a standard PCR, but real time fluorescence PCR is increasingly being used. The purpose of this paper is to compare these two different techniques from the point of view o...

journal_title：Clinical chemistry and laboratory medicine

authors： Schroell-Metzger B,Dicato M,Bosseler M,Berchem G

更新日期：2003-04-01 00:00:00

abstract：BACKGROUND:Non-invasive biochemical markers are needed to support the diagnosis of ulcerative colitis (UC), an incurable disease of unknown pathology. Midkine is an angiogenic cytokine, chemotactic towards neutrophils and macrophages, and a T-regulatory cell suppressor. METHODS:Serum midkine was measured immunoenzymat...

journal_title：Clinical chemistry and laboratory medicine

authors： Krzystek-Korpacka M,Neubauer K,Matusiewicz M

更新日期：2009-01-01 00:00:00

abstract：:Dementia is a growing public health concern because of the lack of effective curative treatment options and a rising global prevalence. Alzheimer's disease (AD) is the most common type of dementia, affecting 60%-70% of all patients with dementia. The main pathological features of Alzheimer's dementia are neurofibrilla...

journal_title：Clinical chemistry and laboratory medicine

authors： Demarin V,Zavoreo I,Kes VB,Simundić AM

更新日期：2011-05-01 00:00:00

abstract：:Acute intestinal ischemic injury (i3) is a life-threatening condition with disastrous prognosis, which is currently difficult to diagnose at the early stages of the disease; a rapid diagnosis is mandatory to avoid irreversible ischemia, extensive bowel resection, sepsis and death. The overlapping protein expression of...

journal_title：Clinical chemistry and laboratory medicine

authors： Peoc'h K,Nuzzo A,Guedj K,Paugam C,Corcos O

更新日期：2018-02-23 00:00:00

abstract：:The erythrocyte sedimentation rate (ESR), now more appropriately referred to as the "length of sedimentation reaction in blood (LSRB)", remains the most widely used laboratory test for monitoring the course of infections, inflammatory diseases and some types of cancer. Thanks to the several recently developed methods ...

journal_title：Clinical chemistry and laboratory medicine

authors： Piva E,Fassina P,Plebani M

更新日期：2002-07-01 00:00:00

abstract：Objectives:External quality assessment schemes (EQAS) are being established worldwide to support the faecal immunochemical test (FIT) for haemoglobin (Hb). FIT is widely used as a screening test for colorectal cancer and increasingly in assessment of patients presenting with symptoms. EQA for FIT is provided in several...

journal_title：Clinical chemistry and laboratory medicine

authors： O'Driscoll S,Piggott C,Bruce H,Benton SC

更新日期：2020-08-07 00:00:00

abstract：:Measurement of total homocysteine (tHcy) in healthy and diseased children has documented the utility of this marker in pediatric research and diagnostics. This article focuses on novel data obtained in infants, children and adolescents, with emphasis on cobalamin status in infants. In children, determinants of plasma ...

journal_title：Clinical chemistry and laboratory medicine

authors： Ueland PM,Monsen AL

更新日期：2003-11-01 00:00:00

abstract：BACKGROUND:Urinary enzymes, including the brush border enzyme alanine aminopeptidase (AAP), are reliable biomarkers of nephrotoxicity and represent early indicators of tubular damage. The aim of the present study was to develop and validate an automated urinary AAP activity assay. METHODS AND RESULTS:For this purpose,...

journal_title：Clinical chemistry and laboratory medicine

authors： Holdt B,Peters E,Nagel HR,Steiner M

更新日期：2008-01-01 00:00:00

abstract：:In Greece, there is no officially organized training in clinical chemistry for scientists. The Greek Society of Clinical Chemistry-Clinical Biochemistry (GSCC-CB), following the encouragement of the EC4/RC decided to organize a voluntary Register for specialists in clinical chemistry. The following criteria for regist...

journal_title：Clinical chemistry and laboratory medicine

authors： Rizos D,Karababa P,Nikolou C,Sarandakou A,Panagiotakis O,Ferderigou A,Haliassos A,Makris K,Psarra K,Bairaktari E,Spyropoulou P,Galiatsatos N,Trakas N,Seferiadis K,Greek National Clinical Chemistry Registration Commission.

更新日期：2011-08-30 00:00:00

abstract：:Although controversial, data on the genetic polymorphism of apoprotein E (APOE), methylenetetrahydrofolate (MTHFR) and paraoxonase (PON1) genes implicate their role in the development of cerebrovascular disease. The aim of this study was to assess the association of polymorphism of APOE, MTHFR and PON1 genes in 56 str...

journal_title：Clinical chemistry and laboratory medicine

authors： Topić E,Simundić AM,Ttefanović M,Demarin V,Vuković V,Lovrencić-Huzjan A,Zuntar I

更新日期：2001-04-01 00:00:00

abstract：:Paroxysmal nocturnal hemoglobinuria (PNH) is an acquired disorder of the pluripotent stem cell resulting from the somatic mutation of the X-linked PIG-A gene, involved in the synthesis of the glycosylphosphatidyl-inositol anchor of membrane proteins such as CD55, CD59 and CD14. In the past decade, flow cytometry has b...

journal_title：Clinical chemistry and laboratory medicine

authors： Hevessy Z,Nagy B Jr,Kiss F,Kiss A,Kappelmayer J

更新日期：2005-01-01 00:00:00

abstract：BACKGROUND:The biochemical determination of cardiac natriuretic peptides, primarily brain natriuretic peptide (BNP) and the amino-terminal fragment of its pro-hormone proBNP (NT-proBNP), are reliable tools for diagnosing cardiac disease, establishing prognosis and evaluating the effectiveness of treatment. These biomar...

journal_title：Clinical chemistry and laboratory medicine

authors： Zaninotto M,Mion MM,Di Serio F,Caputo M,Ottomano C,Plebani M

更新日期：2010-07-01 00:00:00

abstract：BACKGROUND:Genetic predisposition to hemochromatosis involves several different point mutations in the HFE gene. Routine testing for two such mutations (H63D and S65C) using real-time genotyping deserves special care, as these mutations are in close proximity (6 bp) of each other. METHODS:A novel assay was designed fo...

journal_title：Clinical chemistry and laboratory medicine

authors： Klaassen CH,van Aarssen YA,van der Stappen JW

更新日期：2008-01-01 00:00:00

abstract：:Point-of-care testing (POCT) is the fastest growing segment of a US$30 billion worldwide market. "Errors" in the testing process, as well as medical data interpretation and treatment associated with POCT, are recognized as leading to major compromises of patient safety. In today's environment, most testing errors (pre...

journal_title：Clinical chemistry and laboratory medicine

authors： Ehrmeyer SS,Laessig RH

更新日期：2007-01-01 00:00:00