Abstract：
:Increasing interest in the use of tumor markers in the clinical management of cancer patients has encouraged development of guidelines by local, national and international groups. Such guidelines generally include recommendations about which markers are likely to be most helpful in given circumstances. Particular requirements and pitfalls in the preanalytical, analytical and postanalytical phases are highlighted. Establishing whether such guidelines are followed in routine practice is difficult, but some indication can be obtained through carefully designed local and national audit projects. Surveys through external quality assessment (proficiency testing) schemes provide a unique means of assessing practice and confirming trends. Such surveys suggest that although increasing numbers of laboratories in the United Kingdom now measure tumor markers, the quality of the service provided over the last ten years has been maintained or improved. While much has already been accomplished, further narrowing of the gap between theory and practice remains a challenge.
journal_name
Clin Biochemjournal_title
Clinical biochemistryauthors
Sturgeon CMdoi
10.1016/s0009-9120(01)00199-0subject
Has Abstractpub_date
2001-07-01 00:00:00pages
353-9issue
5eissn
0009-9120issn
1873-2933pii
S0009-9120(01)00199-0journal_volume
34pub_type
杂志文章abstract：OBJECTIVE:To confirm that the naproxen metabolite O-desmethylnaproxen interferes with the Jendrassik and Grof method for total bilirubin and was a possible cause of spurious hyperbilirubinemia in a case of naproxen overdose. DESIGN AND METHODS:Plasma was spiked with naproxen or O-desmethylnaproxen before total and dir...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2008.09.119
更新日期：2009-01-01 00:00:00
abstract：:We investigated the effects of medium supplementation with increasing amounts of different fatty acids on HepG2 cell cholesterol biosynthesis and esterification. Up to 200 microM 16:0 led to an increase in cholesterol secretion/synthesis of 60%/40%; 18:1, 18:2, or 18:3 decreased secretion/synthesis by 35%/25%, 65%/65%...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(92)80008-5
更新日期：1992-10-01 00:00:00
abstract：OBJECTIVES:Microarray analysis of gene expression profiles of blood leukocytes has many potential clinical and research applications. DESIGN AND METHODS:We used the PAXgene Blood RNA System to prepare RNA from the whole blood of normal volunteers using two incubation times followed by gene expression profiling using t...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2004.03.013
更新日期：2004-09-01 00:00:00
abstract：BACKGROUND:Reference intervals have traditionally been partitioned by age based on statistical significance and physiological relevance. However, analyte concentration does not change abruptly with age, but rather dynamically. In this study, we establish biochemical marker continuous reference intervals for a Canadian ...
journal_title：Clinical biochemistry
pub_type： 临床试验,杂志文章
doi：10.1016/j.clinbiochem.2019.08.010
更新日期：2019-11-01 00:00:00
abstract：OBJECTIVES:Δ(9)-Tetrahydrocannabinol (THC) can be measured in exhaled breath by using an aerosol particle collection device. The sampling procedure is simple, non-invasive and takes only 2-3min. In the present study we measured the amount of THC in exhaled breath of cannabis users at specific time intervals up to 3h af...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2016.06.003
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVES:The aim of our study was to assess the association of common sequence variants, and selected interactions, with HDL-c plasma levels. DESIGN AND METHODS:We analysed 743 individuals (340 men and 403 women) with high mean triglyceride and LDL-c levels. The association of five polymorphic sites (ABCA1 g.1051G>A...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2010.04.001
更新日期：2010-06-01 00:00:00
abstract：:In the urine of six subjects with a urea cycle disorder characterized by hyperammonemia, hyperornithinemia and homocitrullinuria, an unusual ninhydrin-reaction compound was encountered. This unknown on hydrolysis yielded ornithine as the only amino acid and, on dansylation studied, yielded didansyl ornithine. The meta...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(77)90986-9
更新日期：1977-04-01 00:00:00
abstract：:Increased hemoglobin A1 (HbA1) occurs in diabetes mellitus as a direct consequence of hyperglycemia, which causes postsynthetic modification of hemoglobin proportional to blood glucose concentration. Glycosylation of hemoglobin is demonstrable also in vitro, not only by glucose, but with other reducing sugars such as ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(82)90556-2
更新日期：1982-06-01 00:00:00
abstract：OBJECTIVES:To investigate the activities of the main antioxidative enzymes and oxidative stress in women with depressive disorder (DD). METHODS:In 35 drug-naive women with DD and 35 age matched healthy women enzymes superoxide dismutase (CuZnSOD), catalase (CAT), glutathione peroxidase (GPX1), glutathione reductase (G...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.06.006
更新日期：2009-09-01 00:00:00
abstract：:We describe a fast and efficient method for the isolation of drugs from blood serum by use of the DU PONT PREP I Automated Sample Processor and octadecyl bonded phase columns. Drugs are selectively adsorbed onto C18 bonded phase and eluted with methanol. The recovered residue is essentially free of sample matrix chrom...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(81)91245-5
更新日期：1981-08-01 00:00:00
abstract：OBJECTIVES:Stable isotope dilution coupled with liquid chromatography-tandem mass spectrometry (LC-MS/MS) is the sensitive method for screening for various inherited metabolic disorders using dried blood spots (DBSs). We present a method for LC-MS/MS determination of succinyladenosine (SAdo) and succinylaminoimidazole ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2014.10.004
更新日期：2015-01-01 00:00:00
abstract：OBJECTIVES:We have previously identified three minor immunophilins of molecular weights 37 kDa, 14 kDa, and 5-8 kDa capable of binding tacrolimus and sirolimus. DESIGN AND METHODS:When tested against pure preparations of five sirolimus metabolites, the 14 kDa protein had almost no cross-reactivity, the 37 kDa protein ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(99)00080-6
更新日期：2000-02-01 00:00:00
abstract：OBJECTIVES:We previously described a panel of four cytokines biomarkers in knee synovial fluid for acute knee pain associated with meniscal pathology. The cytokine biomarkers included interferon gamma (IFN-gamma), interleukin 6 (IL-6), monocyte chemotactic protein 1 (MCP-1), and macrophage inflammatory protein-1 beta (...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2010.04.069
更新日期：2010-07-01 00:00:00
abstract：:Point of Care Testing (POCT) refers to clinical laboratory testing performed outside the central laboratory, nearer to the patient and sometimes at the patient bedside. The testing is usually performed by clinical staff, such as physicians or nurses, who are not laboratory trained. This document was developed by the P...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2020.11.008
更新日期：2021-02-01 00:00:00
abstract：AIMS:There is increasing interest in using fructosamine measurements in screening for or managing diabetes, yet uncertainty remains as to whether these measurements should be corrected for variation in serum protein concentrations. METHODS:We considered all sets of simultaneous measurements of fructosamine, albumin, t...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2016.10.014
更新日期：2017-02-01 00:00:00
abstract：BACKGROUND:Vitamin B12 insufficiency/deficiency is common in mixed patient populations. However there is no single marker which can reliably diagnose B12 insufficiency/deficiency. Elevated concentrations of methylmalonic acid (MMA) are considered the most representative marker of metabolic vitamin B12 insufficiency, bu...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2013.08.006
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVES:To investigate the possible association between functional variant Ala-9Val in the MnSOD gene and asthma in the case-control study comprising 626 Caucasian subjects. METHODS:MnSOD genotypes were determined by PCR with subsequent restriction analysis by the BsaWI enzyme. RESULTS:Significant differences in a...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2005.12.001
更新日期：2006-03-01 00:00:00
abstract：:The investigation of oxidative stress (OS), its mechanisms and connections with human diseases, is a topic of interest with more than 36,000 PubMed citations to date. The OS can be approached either from the perspective of pro-oxidation, either of anti-oxidation, and both can be investigated considering individual che...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2016.11.037
更新日期：2017-04-01 00:00:00
abstract：INTRODUCTION:The USA hCG Reference Service has been dealing with cases of persistent low levels of hCG and gestational trophoblastic diseases for 10years. Here we present the complete experience. METHODS:Total hCG in serum and urine was measured using the Siemen's Immulite 1000 assay. Hyperglycosylated hCG, nicked hCG...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2010.05.006
更新日期：2010-08-01 00:00:00
abstract：OBJECTIVES:Plasma retinol-binding protein (RBP) has been linked to insulin resistance and cardiovascular risk, yet little is know of its natural variation in plasma. We examined this in normal subjects and compared plasma levels and variability in lean subjects and subjects with the metabolic syndrome. METHODS:We esta...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2007.03.021
更新日期：2007-07-01 00:00:00
abstract：OBJECTIVES:The purpose of this study is to assess the usefulness of the concentration of cystatin C (Cys-C) in serum for predicting the clearance of vancomycin (CLvcm) compared with the serum concentration of creatinine (SCr) in the elderly. METHODS:Thirty-nine serum samples were obtained from 24 elderly patients (65 ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2007.01.008
更新日期：2007-04-01 00:00:00
abstract：OBJECTIVE:This study was conducted to investigate the potential role of intravascular oxidative stress in inexplicable episodes of coronary artery spasm (CAS) during coronary angiography (CAG). DESIGN AND METHODS:Serial patients with stable angina scheduled for routine CAG were prospectively evaluated. Patients with c...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.01.021
更新日期：2009-05-01 00:00:00
abstract：:Immunoglobulin levels are elevated in the acquired immune deficiency syndrome (AIDS) and one class, IgA, has been suggested as a marker of disease progression. IgA is composed of two subclasses, IgA1 and IgA2; circulating IgA1 is roughly 85% of the total in healthy individuals. We have attempted to determine if the su...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(91)80020-4
更新日期：1991-06-01 00:00:00
abstract：:1. Six subjects were investigated during the luteal phase of the menstrual cycle to determine whether the ovarian steroids, estrogen and progesterone were released in an episodic manner. 2. Analysis of plasma obtained every 20 min. during a normal working day provided no evidence for pulsatile release of either steroi...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(75)92479-0
更新日期：1975-08-01 00:00:00
abstract：:Core Alzheimer's Disease (AD) biomarkers are the cerebrospinal fluid (CSF) proteins amyloid β42 and β40, and the tau proteins, total and phosphorylated. Their use is recommended by research guidelines for diagnostic purpose and for stratification of patients for clinical trials. However, novel potential biomarkers are...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2019.08.008
更新日期：2019-10-01 00:00:00
abstract：:1,5-anhydroglucitol (AG) is a nonmetabolizable glucose analogue found in plasma due to ingestion. The normal steady-state concentration can be dramatically decreased by inhibition of tubular reabsorption during periods of hyperglycemia. For this reason, monitoring of AG has been plausibly advocated for detection of pe...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2008.08.086
更新日期：2009-02-01 00:00:00
abstract：OBJECTIVES:Blood sampling/handling alters matrix metalloproteinases (MMP) and tissue inhibitors of metalloproteinases (TIMP) expression. The aim of this study is to evaluate the effects of high molecular weight heparin on MMP and TIMP expression in blood. DESIGN AND METHODS:We analyzed by gelatin zymography and ELISA ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2008.09.104
更新日期：2008-12-01 00:00:00
abstract：OBJECTIVES:To compare a fully automated immunoassay and a fully automated HPLC method for the quantification of HbA1c. DESIGN AND METHODS:For an inter-method comparison, 200 consecutive clinical samples were analyzed. Imprecision was studied with pooled whole blood. RESULTS:Very close agreement of results (identical ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2008.08.084
更新日期：2008-11-01 00:00:00
abstract：OBJECTIVES:There has been growing interest in the use of serum B-type natriuretic peptide (BNP) and the N-terminal segment of its pro-hormone (NT-proBNP) as biomarkers for cardiac disease. The aim of this review is to summarize the current state of knowledge regarding BNP and NT-proBNP measurement in the pediatric popu...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2005.12.004
更新日期：2006-06-01 00:00:00
abstract：UNLABELLED:Frozen biospecimens are crucial for translational research and contain well-preserved nucleic acids and protein. However, the risks of freezer failure as well as space, cost, and environmental concerns of frozen biospecimens are substantial. OBJECTIVE:The purpose of the study was to review the current statu...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2013.12.011
更新日期：2014-03-01 00:00:00
