Abstract:
:United States Food and Drug Administration (FDA) in 2010 approved the use of immunosuppressant drug everolimus, which requires therapeutic drug monitoring in whole blood. Taking advantage of structural similarity between sirolimus and everolimus we attempted to rapidly estimate everolimus concentration from apparent sirolimus concentration obtained by using Architect sirolimus immunoassay and mathematical equations (both polynomial and linear). Mathematical equations were derived by curve-fitting methods based on observed apparent sirolimus concentration and true everolimus concentration determined by a liquid chromatography combined with mass spectrometry (LC/MS) method using eight everolimus standards (concentration range 1-30 ng/mL) prepared in whole blood. In order to determine the validity of our approach, we analyzed 12 specimens from patients receiving everolimus using both Architect sirolimus assay and LC/MS method. We observed good correlation between calculated everolimus values and true everolimus values as determined by LC/MS. However, if a patient is switched from sirolimus to everolimus, then sirolimus immunoassay can roughly estimate everolimus concentration plus any residual sirolimus present in whole blood and it is not possible to calculate everolimus concentration.
journal_name
J Clin Lab Analjournal_title
Journal of clinical laboratory analysisauthors
Dasgupta A,Moreno V,Balark S,Smith A,Sonilal M,Tejpal N,Van Buren CTdoi
10.1002/jcla.20459subject
Has Abstractpub_date
2011-01-01 00:00:00pages
207-11issue
3eissn
0887-8013issn
1098-2825journal_volume
25pub_type
杂志文章abstract:BACKGROUND:The performances of the QMS(®) Teicoplanin immunoassay recently developed on Cobas(®) 6000/8000 systems were evaluated and compared to a fluorescence polarization immunoassay (FPIA) [Teicoplanin Innofluor(®) Assay (Thermo Fisher Scientific, Indianapolis, IN)] on FLX analyzer (Abbott Laboratories, Abbott Park...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21567
更新日期:2013-03-01 00:00:00
abstract::We found that the Rhabdomyosarcoma (RD) cell line expresses human acetylcholine receptor (AChR) based on the following evidences: 1. Soluble AChR can be isolated from RD cells following the isolation procedure for AChR from human muscle; 2. Intact RD cells bind to alpha-bungarotoxin (alpha Butx) in a time-dependent an...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860070104
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:This study aimed to investigate the plasma long non-coding RNA (lncRNA) expression profile in knee osteoarthritis (KOA) patients and the value of candidate lncRNAs for predicting KOA risk. METHODS:Plasma was obtained for RNA sequencing (RNA-seq) in eight KOA patients and eight healthy controls (Ctrls). Ten ...
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
abstract::A flow cytometric method for quantitation of glutathione (GSH) was applied to simultaneous analysis of the major leukocyte types in peripheral blood. Cellular thiols (predominantly GSH) were stained with monochlorobimane (MCIB), and thiol fluorescence was measured with a flow cytometer. The fluorescence of the thiols ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860040503
更新日期:1990-01-01 00:00:00
abstract::Circulating bilirubin is thought to function as a physiological antioxidant. One of the decomposition products of this process is the biopyrrins, which include two regioisomers: biotripyrrin-a (1,14,15,17-tetrahydro-2,7,13-trimethyl-1,14-deoxy-3-vinyl-16H-tripyrrin-8,12-dipropionic acid) and biotripyrrin-b (1,14,15,17...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20157
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:The trends in usage of tumor markers, including CEA, SCC, NSE, Cyfra21-1, and ProGRP, in Chinese lung cancer patients in the real-world setting are not fully investigated. METHODS:A retrospective descriptive study was conducted using the database of Qilu Hospital of Shandong University, China between Januar...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23465
更新日期:2020-11-01 00:00:00
abstract::We investigated the relationship between the urokinase type plasminogen activator receptor (uPAR) in sera and tissues of patients with cervical cancer and the clinical and pathological features of the cancer. Immunohistochemistry (SABC method) was used to detect uPAR expression in cervical cancer and normal tissues; E...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20499
更新日期:2012-01-01 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: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:BACKGROUND:The aim of this study was to explain the effects of microRNA-132 in renal cell carcinoma by regulating FOXM1 expression. METHODS:Thirty patients with renal cell carcinoma admitted to our hospital were enrolled, and their adjacent normal tissues and cancer tissues were taken. The expression of microRNA-132 w...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22969
更新日期:2020-01-01 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
abstract::A sensitive enzyme immunoassay (immune complex transfer enzyme immunoassay) for (anti-human T-cell leukemia virus type I) IgG (anti-HTLV-I IgG) in serum using recombinant gag p24(14-214) of HTLV-I is described. The recombinant gag p24(14-214) is soluble in the absence of detergents and allows the use of enzymes other ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860060509
更新日期:1992-01-01 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::We studied a new proteinase K assay method for human serum mitochondrial aspartate aminotransferase. We found that proteinase K showed no inactivation of human mitochondrial aspartate aminotransferase isoenzyme and complete inactivation of cytosolic aspartate aminotransferase. Previous studies have shown that selectiv...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860070202
更新日期:1993-01-01 00:00:00
abstract::By using commercially available ELISA kits, serum IL-6 and TNF-alpha levels in healthy adults, and the levels of various cytokines in patients with primary biliary cirrhosis or chronic viral liver diseases, were investigated. IL-6 levels of healthy subjects were distributed in a wide range, and the distribution patter...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract::Recombinant HIV-1 p66 (rp66, a subunit of reverse transcriptase (RT), a heterodimer of p66 and p51) was produced in Escherichia coli in three different ways. First, rp66 was produced as a part of the fusion protein of lacZ protein and HIV-1 pol protein consisting of three components: protease (p10), RT (p51/p66), and ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND:N-terminal pro-Brain natriuretic peptide (NT-proBNP) is an important biomarker to indicate cardiac function, but its significance in cardiac surgery is still unclear. OBJECTIVE:To explore clinical significance of serum NT-proBNP and their dynamic characteristics in patients with cardiac valve replacement (C...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20435
更新日期:2011-01-01 00:00:00
abstract::The effects of TPA (12-0-tetradecanoylphorbol-13-acetate) and RA (retinoic acid) were investigated on the cell lines HL60 (acute promyelocytic leukemia) and K562 (erythroleukemia) and on cells from patients with several kinds of leukemia. There were 14 cases of acute lymphocytic leukemia (ALL), 2 cases of chronic lymp...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860040506
更新日期:1990-01-01 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::Two methods for the extraction of RNA of vesicular stomatitis virus (VSV) Indiana1 and New Jersey and their simultaneous amplification by one-step polymerase chain reaction using reverse transcriptase were evaluated. A guanidine-thiocyanate-based RNA extraction (Qiagen RNeasy Mini Kit, Qiagen, Valencia, CA ) followed ...
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
abstract:BACKGROUND:Early recognition and treatment for severe drug eruption are important in improving clinical outcomes. A few studies have reported laboratory parameters to evaluate the severity of drug eruptions. This study aimed to determine the association between serum ferritin and the severity of drug eruptions. METHOD...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23043
更新日期:2020-02-01 00:00:00
abstract::Second- and higher-order degradation reactions sometimes cannot be approximated with linear or exponential relationships and need to be appropriately modeled. Events above the COULTER HmX Analyzer white blood cell (WBC) counting threshold were recorded for the HmX PAK reagent system stored at five elevated temperature...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.10043
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:Neuron-specific enolase (NSE) is a recognized biomarker for the assessment of cerebral injury in neurological disorders. This study aims to report a definitive assessment of the biological variation (BV) components of this biomarker, including within-subject BV (CVI), between-subject BV (CVG), index of indiv...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21984
更新日期:2016-11-01 00:00:00
abstract::Enteroviruses (EVs) are the most commonly identified cause of aseptic meningitis. Rapid detection and characterization of EV meningitis is essential in making decisions for patient management and treatment. A total of 52 cases of acute aseptic meningitis that occurred from March 2003 to April 2005 were investigated fo...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20129
更新日期:2006-01-01 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:Circular RNAs (circRNAs) are emerging noncoding RNAs that are involved in many biological processes and diseases. The expression profile of circRNAs in preterm neonates with bronchopulmonary dysplasia (BPD) remains unresolved. METHODS:In BPD infants, peripheral venous blood was drawn and circRNAs were extra...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23260
更新日期:2020-07-01 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::Preeclampsia continues to be a major cause of maternal and perinatal mortality and morbidity worldwide. The etiopathogenesis of preeclampsia is not fully understood. Neopterin and interleukin-2 (IL-2) production reflects cellular immunity. Our purpose was to determine the levels of neopterin and interleukin-2 receptor...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20053
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:Metabolic syndrome (MetS) prevalence in rheumatoid arthritis (RA) patients is known to vary considerably across the world. This study aimed to determine the prevalence of MetS in RA patients from western Mexico and to analyze the interrelation of the MetS components with the clinical variables of RA. METHOD...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23666
更新日期:2020-11-24 00:00:00