Abstract:
BACKGROUND:This study aimed to investigate the status of internal quality control (IQC) for cardiac biomarkers from 2011 to 2016 so that we can have overall knowledge of the precision level of measurements in China and set appropriate precision specifications. METHODS:Internal quality control data of cardiac biomarkers, including creatinine kinase MB (CK-MB) (μg/L), CK-MB(U/L), myoglobin (Mb), cardiac troponin I (cTnI), cardiac troponin T (cTnT), and homocysteines (HCY), were collected by a web-based external quality assessment (EQA) system. Percentages of laboratories meeting five precision quality specifications for current coefficient of variations (CVs) were calculated. Then, appropriate precision specifications were chosen for these six analytes. Finally, the CVs and IQC practice were further analyzed with different grouping methods. RESULTS:The current CVs remained nearly constant for 6 years. cTnT had the highest pass rates every year against five specifications, whereas HCY had the lowest pass rates. Overall, most analytes had a satisfactory performance (pass rates >80%), except for HCY, if one-third TEa or the minimum specification were employed. When the optimal specification was applied, the performance of most analytes was frustrating (pass rates < 60%) except for cTnT. The appropriate precision specifications of Mb, cTnI, cTnT and HCY were set as current CVs less than 9.20%, 9.90%, 7.50%, 10.54%, 7.63%, and 6.67%, respectively. The data of IQC practices indicated wide variation and substantial progress. CONCLUSION:The precision performance of cTnT was already satisfying, while the other five analytes, especially HCY, were still frustrating; thus, ongoing investigation and continuous improvement for IQC are still needed.
journal_name
J Clin Lab Analjournal_title
Journal of clinical laboratory analysisauthors
Li T,Wang W,Zhao H,He F,Zhong K,Yuan S,Wang Zdoi
10.1002/jcla.22324subject
Has Abstractpub_date
2018-05-01 00:00:00pages
e22324issue
4eissn
0887-8013issn
1098-2825journal_volume
32pub_type
杂志文章abstract:OBJECTIVE:The coronavirus disease 2019 (COVID-19) has rapidly developed into a pandemic. Increased levels of ferritin due to cytokine storm and secondary hemophagocytic lymphohistiocytosis were found in severe COVID-19 patients. Therefore, the aim of this study was to determine the role of ferritin in COVID-19. METHOD...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章,meta分析
doi:10.1002/jcla.23618
更新日期:2020-10-01 00:00:00
abstract::A microparticle-enhanced nephelometric immunoassay was developed for plasminogen quantitation in human plasma. It is based on the nephelometric measurement of the light scattered by microparticle clusters formed during a sandwich reaction between plasminogen, microparticle--anti-plasminogen conjugate, and the free ant...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/(SICI)1098-2825(1996)10:2<85::AID-JCLA5>3.
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:Alport syndrome (ATS) is a hereditary nephritis with hereditary and clinical heterogeneity; the early clinical symptoms are atypical, which can easily lead to misdiagnosis. The proband, a 6-year-old girl, was found to have microscopic hematuria, proteinuria, and visual impairment at about 5 years old; the re...
journal_title:Journal of clinical laboratory analysis
pub_type:
doi:10.1002/jcla.23558
更新日期:2020-09-06 00:00:00
abstract:BACKGROUND:Dried blood spots (DBS) are an important form of bio-sampling and valuable approach for storing blood samples for genetic studies. This has necessitated in developing an effective protocol to isolate genomic DNA (gDNA) from DBS samples.In this study, we have elucidated a dependable and non-hazardous "single ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21972
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:The pulmonary surfactant especially lipids in amniotic fluid can reflect the development stage of fetal lung maturity (FLM). However, the conventional lecithin/sphingomyelin (L/S) ratio method by thin layer chromatography (TLC) is insufficient and inconvenient for FLM prediction in clinical practice. METHOD...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23109
更新日期:2020-04-01 00:00:00
abstract::The proteoglycan decorin inhibits TGF-beta; therefore, it could antagonize progression of fibrotic diseases associated with activation of TGF-beta(1). The effect of decorin transfection in human mesangial cells (HMCs) on the expression of genes related to kidney fibrosis was investigated. HMCs, isolated from glomeruli...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.10038
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:We aimed to assess the predictive value of long noncoding RNAs antisense noncoding RNA in the INK4 locus (lncRNAs ANRIL) for acute exacerbation of chronic obstructive pulmonary disease (COPD) and evaluate its correlation with inflammatory cytokines as well as the Global Initiative for Chronic Obstructive Lun...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22678
更新日期:2019-02-01 00:00:00
abstract::Didemnin A was conjugated at the amino terminus of the N-methylleucine residue, via the linkers N-succinimidyl-3-(2-pyridyldithio)-propionate and trans-1,4-maleimidomethyl-cyclohexane carboxylic acid, to keyhole limpet hemocyanin (KLH) and bovine serum albumin (BSA). The didemnin-KLH conjugates were used to hyperimmun...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860060307
更新日期:1992-01-01 00:00:00
abstract::A radioactive polymerase chain reaction (PCR) method has been developed for the relative quantification of the human alpha-2 chain of type I collagen [hu alpha-2(I)] in cells. cDNAs generated by reverse transcription from the total pool of cytoplasmic RNA serve as a template for polymerase chain reaction amplification...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860050407
更新日期:1991-01-01 00:00:00
abstract::Mycobacterium tuberculosis bacilli are seldom demonstrated in tuberculous pleural effusion (TPE) by conventional bacteriological methods. In this study, an indirect enzyme-linked immunosorbent assay (ELISA) was developed to detect IgG against four mycobacterial recombinant antigens (ESAT-6, PlcA, HspX and Tb8.4) in 69...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20401
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:Adiponectin, an adipocyte-derived protein, is known to play a key role in the processes leading to atherosclerosis and coronary artery disease (CAD) through its anti-atherogenic, anti-inflammatory, antioxidative, and anti-apoptotic properties. In the current study, we have studied the association of two sing...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22446
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:The many techniques used to diagnose the Factor V Leiden (FVL) mutation, the most common hereditary hypercoagulation disorder in Eurasians, and the most frequently requested genetic test reflect the evolving strategies in protein and DNA diagnosis. METHODS:Here, molecular methods to diagnose the FVL mutatio...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20470
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:The HER2 (human epidermal growth factor receptor-2) Ile655Val (rs1136201) genetic polymorphism can alter the receptor structure and its auto-activation, which can modify the signal transduction and, consequently, the cell cycle regulation. For this reason, this polymorphism has been extensively investigated ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22406
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVES:To evaluate the associations of urinary markers (eg albumin), glomerular (eg transferrin [TRF], immunoglobulin G [IgG]), and tubular (eg α1-microglobulin [α1-MG], β2-microglobulin [β2-MG]) markers with the development of diabetic kidney disease (DKD) in type 2 diabetes patients, as assessed by estimated glom...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22191
更新日期:2018-01-01 00:00:00
abstract:BACKGROUND:Cell-free DNA (cfDNA) circulating in blood is currently used for noninvasive diagnostic and prognostic tests. Minimizing background DNA is vital for detection of low abundance cfDNA. We investigated whether a new blood collection device could reduce background levels of genomic DNA (gDNA) in plasma compared ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21603
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND:Gastric cancer (GC) is one of the global mortality diseases and has a poor prognosis due to the lack of ideal tumor biomarkers. Circular RNAs (circRNAs) are an abundant kind of endogenous RNAs that recently are found play a crucial role in the cancer occurrence and development. Nevertheless, little is known ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23080
更新日期:2020-03-01 00:00:00
abstract:BACKGROUND:Hypoalbuminemia has been proven to be a powerful predictor of mortality in adult patients. However, prognostic value of serum albumin in neonates is not clear. OBJECTIVE:To assess the relationship between serum albumin level within the first day of life and outcome in preterm infants born before 32 weeks of...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21949
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:Blood gas analysis and blood lactate measurement have important roles in patient management. Point-of-care (POC) testing simplifies and provides rapid blood gas and lactate measurements. This study aimed to compare pH, pCO2 , pO2 , and lactate measurements between a POC device and a benchtop blood gas analyz...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22885
更新日期:2019-06-01 00:00:00
abstract:BACKGROUND:Toxocariasis is the clinical term that is applied to infection in the human host with Toxocara species larvae. Serological tests are important tools for the diagnosis of toxocariasis. The aim of this study was to evaluate the excretory-secretory (ES) antigens of T. cati larvae using enzyme-linked immunosorbe...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21844
更新日期:2016-05-01 00:00:00
abstract::Congenital heart disease (CHD) is a common cardiac defect found in infants and children. Despite advances in diagnosis and treatment, our understanding of the causative mechanism and etiology of CHD is limited. To determine the genetic etiology of CHD, we selected 11 consecutive short tandem-repeat polymorphic (STRP) ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.10062
更新日期:2003-01-01 00:00:00
abstract::A method that could be facilitated for the quantitation and qualitation of gangliosides in human plasma was developed and applied in the present study for characterization of ganglioside patterns in plasmas of patients with neoplastic diseases including gastric cancer, adult T-cell leukemia (ATL), and acute lymphocyti...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860030508
更新日期:1989-01-01 00:00:00
abstract::The importance of the neutrophil function to host defense and tissue damage has been widely recognized. However, the usefulness of the correlation analysis between phagocytic activity and superoxide production of neutrophils is unknown. We investigated the relationship by histochemical NBT assay using rats and mice ex...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/(SICI)1098-2825(1996)10:6<458::AID-JCLA25>
更新日期:1996-01-01 00:00:00
abstract::In order to analyze the epitope structure of carcinoembryonic antigen (CEA) and the idiotype network system, seven anti-idiotypic monoclonal antibodies (anti-Id MoAbs) were generated from a BALB/c mouse immunized with anti-CEA MoAb P1-356, which recognized a synthetic peptide P1 of CEA, domain I. These MoAbs were divi...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.10058
更新日期:2002-01-01 00:00:00
abstract::During the past few years, interest in xenotransplantation of porcine islets of Langerhans for the future therapy of type I diabetes has increased markedly. Therefore, we established a semiautomated digestion method for isolating islets from the porcine pancreas. However, although the isolation technique was standardi...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860080611
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND:Automated flow cytometry-based urine analyzer is increasingly being used to identify and enumerate cells and particles in urine specimens. It measures electrical conductivity which could be transformed to osmolality. Using this machine, all urine specimens could be screened for osmolality without requiring a...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23586
更新日期:2020-09-24 00:00:00
abstract:BACKGROUND:Although it is widely acknowledged that physical activity confers several health benefits, it remains uncertain whether strenuous and physically demanding exercise might determine biological effects that might turn to be ultimately unfavorable for health. Copeptin and midregion proadrenomedullin (MR-proADM) ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21720
更新日期:2015-01-01 00:00:00
abstract::Hemoglobin F (HbF) is an effective inhibitor of HbS polymerization. Hydroxyurea (HU) is used to increase HbF synthesis and improve the clinical course of sickle cell disease (SCD) patients. We studied a series of laboratory parameters concerning HbF production and reticulocyte response, and compared data between two g...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.10070
更新日期:2003-01-01 00:00:00
abstract::A modification of the assay system for peroxidase activity in human mixed saliva using 2,2'-azinobis-(-ethylbenzthiazoline-6-sulphonic acid) (ABTS) as the substrate is reported. The modifications permit differentiation between glandular peroxidase (SPX) and myeloperoxidase (MPX) activity. In addition, factors endogeno...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860050111
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND:Primary adrenal lymphoma (PAL) is an infrequent malignant disease and there is no consensus classification or specialized treatment for it. However, PAL has been observed to have worse prognosis compared with other extrarenal malignant lymphomas and diffuse large B-cell lymphoma presents as the most common s...
journal_title:Journal of clinical laboratory analysis
pub_type:
doi:10.1002/jcla.23173
更新日期:2020-05-01 00:00:00
abstract:BACKGROUND:Platelet-reactive antibodies lead to thrombocytopenia and bleeding disorders, and diverse assays are used for their detection. In this retrospective analysis, the applicability of three different test systems was compared and antibody specificities were assessed. METHODS:Sera of 1,234 patients were tested w...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21750
更新日期:2015-05-01 00:00:00