Abstract：
OBJECTIVES:All patients who undergo cardiopulmonary bypass (CPB) experience some degree of ischemia reperfusion injury (IRI). Severe IRI-induced acute kidney injury (AKI) occurs in approximately 1-2% of patients undergoing CPB. Previous studies using activity-based protein profiling of urine identified group XV phospholipase A2, PLA2G15/LPLA2, as potentially associated with patients who develop AKI post CPB. The present study examined urinary PLA2G15/LPLA2 activity during CPB and in the near postoperative period for associations with subsequent AKI development. DESIGN & METHODS:Samples were collected in a nested case controlled cohort of 21 patients per group who either did (AKI) or did not (non-AKI) develop AKI post-operatively. Serum and urine samples from each patient before, during and after CPB were assayed for PLA2G15/LPLA2 activity. RESULTS:Urine activity significantly increased during the intra operative period. In contrast the activities in paired sera were markedly decreased during CPB. There was no correlation between the serum and urine activity levels of patients. There were no significant differences in activity levels of PLA2G15/LPLA2 in the urine or sera from patients that did and did not develop AKI. CONCLUSIONS:The lack of correlation between serum and urine activity levels suggests that the rapid intraoperative increases in PLA2G15/LPLA2 activity may originate from the kidney and as such offer an intraoperative indicator of early renal response to CPB associated stressors.
journal_name
Clin Biochemjournal_title
Clinical biochemistryauthors
Navarrete M,Wilkins JA,Chan FV,Ye B,Nickerson P,Ho Jdoi
10.1016/j.clinbiochem.2020.12.003subject
Has Abstractpub_date
2021-02-01 00:00:00pages
49-55eissn
0009-9120issn
1873-2933pii
S0009-9120(20)30907-3journal_volume
88pub_type
杂志文章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：OBJECTIVES:The plasma apolipoprotein B (apo B) concentrations have been considered to be a more accurate representation of atherogenic particles and it has been proposed that the formula LDL-C (mmol/L) = 0.41TC - 0.32TG + 1.70apo B - 0.27 is reliable for the estimation of LDL-C (Clin Chem 1997; 43: 808-15). We undertoo...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(00)00162-4
更新日期：2000-10-01 00:00:00
abstract：OBJECTIVES:The International Federation of Clinical Chemistry (IFCC) initiated a pilot study, with cortisol as an example, that aims to implement the concept of standardization of hapten immunoprocedures on the basis of metrological traceability. In fact, this standardization concept comes down to correct calibration o...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(98)00037-x
更新日期：1998-08-01 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：AIM:Luciferase immunoprecipitation (LIPS) assays show good sensitivity and specificity in testing islet specific autoantibodies for diagnosis of type 1 diabetes (T1D). However, there are currently no LIPS assays available for detecting proinsulin/insulin autoantibody (IAA) previously. We here developed a LIPS assay to ...
journal_title：Clinical biochemistry
pub_type： 临床试验,杂志文章
doi：10.1016/j.clinbiochem.2018.02.011
更新日期：2018-04-01 00:00:00
abstract：OBJECTIVES:This study investigates how some of human physiological parameters, in particular sex and daytime, can contribute to the normal variation in blood gene expression. DESIGN AND METHODS:The expressions of two genes: SOD1 (Cu/Zn) and SOD2 (Mn) in white blood cells of 19 healthy individuals (10 men and 9 women) ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2008.08.064
更新日期：2008-11-01 00:00:00
abstract：:A study conducted on 228 diabetic patients has shown a significant positive association between serum gamma-glutamyl transpeptidase (GGT) and triglyceride levels. Both fall with treatment, the most marked reduction occurring in patients on insulin. We suggest that the association between serum GGT and triglyceride lev...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(76)80059-8
更新日期：1976-08-01 00:00:00
abstract：OBJECTIVES:Hepatitis B virus (HBV) can result in asymptomatic carrier (AsC) state or chronic inflammation of liver, which depends on the host immunity. We therefore investigated the peptidomic profiling in the process of HBV infection. DESIGN AND METHODS:In this study, serum from 116 HBV infected (AsC and chronic hepa...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2013.10.016
更新日期：2014-01-01 00:00:00
abstract：OBJECTIVES:Pseudoxanthoma elasticum (PXE) is a hereditary disorder predominantly affecting the skin, retina and vascular system. The aim of this study was to measure cell adhesion molecules in PXE patients. DESIGN AND METHODS:Soluble P-, E- and L-selectins were measured in 61 non-consanguineous PXE patients. The distr...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2007.12.009
更新日期：2008-04-01 00:00:00
abstract：:This review deals with the application of time-resolved fluorescence spectroscopy in the field of immunoassay. The advantages of time-resolved fluorescence over conventional fluorometry are discussed and it is explained why the fluorescent lanthanide chelates, and especially the Eu3+ chelates, are the labels of choice...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/0009-9120(88)90001-x
更新日期：1988-06-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:A large number of studies have examined the association between the Membrane-spanning 4 domains, superfamily A, number 2 (MS4A2) gene C-109T (rs1441586) or E237G (rs569108) variants and asthma risk. However, the results are inconsistent and inconclusive. To derive a more precise estimation, a m...
journal_title：Clinical biochemistry
pub_type： 杂志文章,meta分析
doi：10.1016/j.clinbiochem.2014.01.022
更新日期：2014-05-01 00:00:00
abstract：OBJECTIVES:Bilirubin exerts anti-oxidative and anti-inflammatory properties which may beneficially influence the development of cardio-metabolic disorders. A nuclear magnetic resonance (NMR) spectroscopy-based glycoprotein biomarker, designated GlycA, whose signal originates from several glycosylated acute-phase protei...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2015.06.016
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVE:The aim of our research is to determine whether the time of blood sampling and fasting of patients have an impact on TSH values. DESIGN AND METHODS:A total of 198 participants were enrolled in this study and classified into five groups: A--the first sample collection for TSH measurement was taken between 7:0...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2015.08.020
更新日期：2015-12-01 00:00:00
abstract：:A retrospective study has been undertaken to assess the diagnostic value of plasma estriol (E3) determinations, as compared with determinations of other biochemical parameters, in predicting the outcome of pregnancy. The normal levels of plasma unconjugated and total E3 were determined on weekly samples obtained durin...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(81)90211-3
更新日期：1981-06-01 00:00:00
abstract：:The recently developed fluorescent immunoassay (FIA) for measuring serum carbamazepine concentration is compared to the established enzyme-multiplied-immunoassay-technique (EMIT). The Accuracy, precision and simplicity of these methods are comparable. The sensitivity of FIA is approximately eight times greater than th...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(82)96854-0
更新日期：1982-12-01 00:00:00
abstract：OBJECTIVE:To determine the serum level of fast skeletal troponin I (fsTnl) resulting from skeletal muscle damage, we have developed a sensitive two-site enzyme immunoassay to measure skeletal troponin I. DESIGN AND METHODS:Twelve monoclonal antibodies were raised against human fsTnl. Of these antibodies, 8 were fsTnl-...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(96)00016-1
更新日期：1996-08-01 00:00:00
abstract：OBJECTIVE:To evaluate clinical value of oxidized lipoprotein(a) [ox-Lp(a)] levels. DESIGN AND METHODS:Ox-Lp(a) were measured by 2 ELISAs using antibodies against ox-Lp(a) [ox-Lp(a)1] or oxidized low-density lipoprotein [ox-Lp(a)2], and studied in 161 acute coronary syndromes (ACS) patients, 114 stable coronary artery ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.12.017
更新日期：2010-04-01 00:00:00
abstract：OBJECTIVES:The aim of the study was to evaluate the concentration of interleukin 12 (IL-12), the activity of phospholipase A(2) (PLA(2)), and platelet-activating factor acetylhydrolase (PAF-AH) in type 1 diabetes (DM1) patients treated with intensive insulin therapy. DESIGN AND METHODS:Studied parameters were measured...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.07.023
更新日期：2009-11-01 00:00:00
abstract：BACKGROUND:The clinical laboratory is responsible for reporting accurate and expeditious results. However, the pre-analytical phase is directly related to the procedure of specimen collection and is mostly out of the direct control of the laboratory; further, most pre-analytical errors are related to human factors. The...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2019.05.016
更新日期：2019-08-01 00:00:00
abstract：OBJECTIVES:To develop a simple and sensitive LC-MS/MS procedure for quantification of serum 25-OH-vitamin D₃ (25-OH-D₃), 25-OH-vitamin D₂ (25-OH-D₂), and their C3-epimers. METHODS:Serum 25-OH-vitamin D metabolites were extracted with MTBE and quantified by LC-MS/MS. Commercially available calibrators and QC materials ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2012.11.030
更新日期：2013-09-01 00:00:00
abstract：OBJECTIVES:To assess the medical applicability of CpG methylation as molecular markers for cancer diagnosis, we established a new system to determine DNA methylation based on TaqMan PCR combined with a methyl-binding-domain polypeptide 2. DESIGN AND METHODS:We evaluated the diagnostic applicability of this approach by...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.03.017
更新日期：2009-07-01 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：OBJECTIVES:The new immunochemistry cobas e 801 module (Roche Diagnostics) was developed to meet increasing demands on routine laboratories to further improve testing efficiency, while maintaining high quality and reliable data. DESIGN AND METHODS:During a non-interventional multicenter evaluation study, the overall pe...
journal_title：Clinical biochemistry
pub_type： 杂志文章,多中心研究
doi：10.1016/j.clinbiochem.2018.05.019
更新日期：2018-08-01 00:00:00
abstract：OBJECTIVE:Determine the relation of xanthine oxidase (XO) activity and the outcome of septic patients and its relation to oxidative damage and clinical parameters of sepsis severity. DESIGN AND METHODS:Patients admitted over a 6-month period were enrolled. Patients were assigned to groups according to the diagnosis of...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2008.07.015
更新日期：2008-10-01 00:00:00
abstract：:The recently emerged severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) spread all over the world rapidly and caused a global pandemic. To prevent the virus from spreading to more individuals, it is of great importance to identify and isolate infected individuals through testing. Reverse transcription-quanti...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2020.12.011
更新日期：2021-01-09 00:00:00
abstract：OBJECTIVES:We checked the efficiency of a new dialysis device adapted to small volumes to remove glycerol from cryopreserved red blood cells. DESIGN AND METHODS:Dialysis was performed on D-Tube96™ Dialyzer Mini device. In a preliminary trial, we measured the residual glycerol before, and 2, 4 and 24 h after dialysis. ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2011.03.023
更新日期：2011-06-01 00:00:00
abstract：BACKGROUND:Cystinosis is a rare autosomal recessive disorder characterized by an accumulation of intralysosomal cystine due to a defect in cystine transport across the lysosomal membrane. This disorder can be treated specifically using high doses of cysteamine. Accurate measurement of intracellular cystine content is n...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2007.02.005
更新日期：2007-06-01 00:00:00
abstract：OBJECTIVE:To quantify pepsinogen C (PEPC) and prostaglandin D synthase (PGDS) in breast cyst fluid and examine if these two parameters can be used for breast cyst type classification. DESIGN AND METHODS:We quantified PEPC and PGDS in 92 and 50 breast cyst fluids, respectively, using previously established immunofluoro...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(98)00079-4
更新日期：1999-02-01 00:00:00
abstract：OBJECTIVE:Previous studies suggested that decreased serum vaspin levels were associated with coronary artery disease (CAD). The present study aimed to investigate the association between plasma vaspin levels and different states of CAD. DESIGN AND METHODS:A total of 162 patients with coronary angiography (CAG) proved ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2013.06.028
更新日期：2013-10-01 00:00:00
abstract：:The structure of enzyme active sites and the nature of the catalytic process are reviewed. The impressive efficiency of these protein catalysts appears to stem from such factors as proximity and orientation of enzyme and substrate moieties, strain, and the occurrence of distinctive microenvironments within catalytic c...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(76)80040-9
更新日期：1976-06-01 00:00:00
