Abstract:
:A modification of the existing spectrophotometric kinetic method for the determination of pancuronium bromide (PCBr), based on pooled human serum cholinesterase (ChE, EC 3.1.1.8 acylcholine acylhydrolase) inhibition, was developed. Butyrylthiocholine iodide (concentration 1.667 mmol/L) was used as substrate and determination was performed at pH 7.6. Essential basic kinetic parameters were also determined: Michaelis-Menten's constant KM=0.33 mmol/L, maximal reaction rate Vmax=42.29 micromol/L min, inhibition constant KI=0.34 micromol/L, and IC50=0.235 micromol/L. Linear dependence between the reaction rate and the inhibitor concentration exists in PCBr concentration range 8.29-265.28 nmol/L, which corresponds to the real sample concentrations from 0.166 to 5.306 micromol/L. The method detection limit was established to be 1.86 nmol/L and the quantification limit was 6.18 nmol/L. Precision of the method was tested for three pancuronium concentrations (16.58, 99.48, and 198.96 nmol/L). The relative standard deviation (RSD) was in the range 0.78-5.13%. Accuracy was examined by the standard addition method. The influence of substances usually present in serum and urine on the reaction rate was determined. The method developed was applied for PCBr determination in spiked serum and urine samples and in the urine taken during surgery. The method was proven to have good sensitivity, accuracy, and precision and can be considered suitable for clinical practice.
journal_name
J Clin Lab Analjournal_title
Journal of clinical laboratory analysisauthors
Stankov-Jovanovic VP,Nikolic-Mandic SD,Mandic LjM,Mitic VDdoi
10.1002/jcla.20162subject
Has Abstractpub_date
2007-01-01 00:00:00pages
124-31issue
2eissn
0887-8013issn
1098-2825journal_volume
21pub_type
杂志文章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
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更新日期:2003-01-01 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
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更新日期:1994-01-01 00:00:00
abstract:AIM:To investigate the presence of antipituitary antibodies (APA) in the serum of patients undergoing gastroenteropathies (GEP) other than celiac disease (CD). METHODS:APA were analyzed in GEP patients (n = 103), CD patients (n = 94), idiopathic growth hormone (GH) deficiency patients (n = 21), and 98 age- and sex-mat...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
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更新日期:2014-01-01 00:00:00
abstract::Elevated serum chromogranin A (CgA) levels have been detected in patients with prostate cancer who have developed resistance to hormonal therapy. We would like to reexamine these cases by using serial specimens to determine whether such elevated levels are also detectable in prostate cancer patients not undergoing hor...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:
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abstract::Premortem diagnosis of the DiGeorge syndrome and its partial variants relies on the demonstration of a primary defect in cell-mediated immunity, generally in the setting of an infant with congenital heart disease, hypocalcemia, absence of a thymic shadow, and typical dysmorphic features. Although T-cell enumeration is...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860030105
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:Gastrin-17 (G-17) and Helicobacter pylori (H pylori) antibody are widely used in the screening of gastric diseases, especially in gastric cancer. In this study, we aimed to evaluate the value of G-17 and H pylori antibody in gastric disease screening. METHODS:Healthy males and females (1368 and 1212, respec...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23518
更新日期:2020-08-30 00:00:00
abstract:BACKGROUND:Today, the genetic and genomic research entered in a new era of high-throughput genotyping technology. However, mutagenic polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) is still a choice of genotyping method in molecular epidemiological research. It has been extensively used fo...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21832
更新日期:2016-03-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21712
更新日期:2014-11-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
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更新日期:2013-05-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
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更新日期:2018-02-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22835
更新日期:2019-05-01 00:00:00
abstract:BACKGROUND:The aim of this study is to evaluate the clinical significance of cystatin C(CysC) in the newborns who show normal serum creatinine (Cr) and who are in an intensive care unit. METHODS:From July 2009 to May 2010, a total of 106 patients (53 male and 53 female newborns) in a neonatal intensive care unit at Ky...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21516
更新日期:2012-07-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20183
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:Cognitive impairment, significantly reducing processing speed and executive function, is the critical consequence of cerebral small vessel disease (SVD), in which genetic variations have been studied. In this study, we explore the role of SNP43 (G/A) and SNP63 (C/T) polymorphism in the CAPN10 on cognitive im...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22615
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND:The GABA-A receptor signaling pathway regulates proliferation, differentiation, apoptosis, and responses to overt DNA damage during embryonic development. METHODS:To analyze the gene expression after intracytoplasmic sperm injection (ICSI) and in in vivo mouse embryos, the global pattern of gene expression ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23584
更新日期:2020-09-20 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23423
更新日期:2020-09-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20439
更新日期:2011-01-01 00:00:00
abstract::The authors compare efficacy of two ELISA assays (one supplied by DIAMEDIX [Delta Biological s.r.l.], and the other by RADIM [RADIM I]) in detecting total anti-H. pylori antibodies, and of two further ELISA methods (one supplied by EUROSPITAL [Helori CTX IgG] and the other by RADIM [RADIM 2]) in identifying anti-CagA ...
journal_title:Journal of clinical laboratory analysis
pub_type: 临床试验,杂志文章
doi:10.1002/(sici)1098-2825(1999)13:4<194::aid-jcla9>3
更新日期:1999-01-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860080504
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/(SICI)1098-2825(1996)10:3<134::AID-JCLA4>3
更新日期:1996-01-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860070612
更新日期:1993-01-01 00:00:00
abstract::The presence of high-molecular intestinal ALP (HIALP) overlapping with bone ALP in the alpha(2)beta region has been demonstrated. In this study we evaluated a method of separating HIALP after its conversion into ALP(5) by the action of protease. Serum samples from patients were mixed with protease at a ratio of 5:1 an...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20179
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:The primary test for the laboratory confirmation of measles is immunoglobulin M (IgM) serology. It is therefore important to evaluate new commercial measles IgM immunoassays to ensure high-quality measles diagnostic testing. The purpose of this study was to evaluate the diagnostic performance of LIAISON IgM ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21630
更新日期:2013-11-01 00:00:00
abstract:BACKGROUND:The prevalence of diabetes is increasing in China. Glucose control is very important in diabetic patients. The aim of this study was to compare the accuracy of five glucose meters used in Chinese hospitals with a reference method, in the absence and presence of various factors that may interfere with the met...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21611
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVE:Dynamic monitoring of the concentration variation of IgM and IgG in patients with SARS-CoV-2 infections and exploring their diagnostic value for coronavirus disease-19 (COVID-19). METHODS:A total of 15 patients with SARS-CoV-2 infection were enrolled as the COVID-19 group, and 50 patients were enrolled as th...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23466
更新日期:2020-10-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
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更新日期:2020-01-01 00:00:00
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journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章,meta分析
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更新日期:2020-10-01 00:00:00
abstract:BACKGROUND:Reference intervals are important for interpretation of clinical laboratory tests. The platelet (PLT) indices such as the mean platelet volume (MPV) and platelet distribution width (PDW) are newer hematological parameters, which have been recently reported as clinically valuable biomarkers. However, there ar...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21721
更新日期:2015-01-01 00:00:00
abstract::Quantitative determination of albumin (ALB) in human urine is important to assess kidney functions in a variety of diseases. Recently, Siemens released an improved Microalbumin assay (microALB_2) to measure urinary ALB on the automated, random access ADVIA 1650/1800, ADVIA 2400, and ADVIA 1200 Chemistry Systems. We ev...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20341
更新日期:2009-01-01 00:00:00