Abstract：
OBJECTIVES:Calprotectin is released from activated leukocytes and calprotectin can thus be used as a marker for leukocyte activation. Faeces calprotectin is not only used as a marker for inflammatory bowel disease but can also be used to detect leukocyte activation in other body fluids. The aim of the present study was to study serum calprotectin levels in non-infected elderly individuals to establish reference intervals for the marker. METHODS:Serum calprotectin was analyzed by immunoturbidimetry in 75 year old females and males without known infections. Individuals with CRP>20mg/L were excluded as this could indicate a subclinical infection. The calprotectin levels in the remaining 713 individuals were used to calculate reference values for this population. The Spearman rank correlations between calprotectin and 27 other laboratory biomarkers were also investigated. RESULTS:There was a strong positive Spearman rank correlation between calprotectin and CRP (p<0.000001) and alkaline phosphatase (p<0.000001). There were also significant negative correlations between calprotectin and ApoA1 and direct HDL-cholesterol. CONCLUSIONS:The reference interval for serum-calprotectin for all study subjects was 0.3-2.6 mg/L. Leukocyte alkaline phosphatase contributes to serum alkaline phosphatase levels.
journal_name
Clin Biochemjournal_title
Clinical biochemistryauthors
Nilsen T,Sundström J,Lind L,Larsson Adoi
10.1016/j.clinbiochem.2014.01.003subject
Has Abstractpub_date
2014-08-01 00:00:00pages
1065-8issue
12eissn
0009-9120issn
1873-2933pii
S0009-9120(14)00006-Xjournal_volume
47pub_type
杂志文章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:Carbonylation of the protein amino, guanidino and thiol groups is one of the important causes of vascular complications in diabetes. We developed a simple spectrophotometric method for monitoring of the changes in the protein amino group contents during carbonylation. DESIGN AND METHODS:The method is based ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2011.05.019
更新日期：2011-08-01 00:00:00
abstract：OBJECTIVES:Anti-Müllerian hormone (AMH) measurement is useful as an aid in the evaluation of ovarian reserve. In the past, its conventional use was restricted by the low-throughput and variability of existing manual AMH assays. We developed the automated Access AMH assay for the quantitative determination of AMH levels...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2016.08.005
更新日期：2016-11-01 00:00:00
abstract：OBJECTIVES:Newly presented solid-phase extraction methods (Solid Phase Disc Extraction, SPEC-Plus, Multi-Modal, and Solid Phase Micro Extraction, SPME have been checked with respect to their applicability to clinical toxicological analysis. In comparison with conventional liquid/liquid-extraction and a common mixed-pha...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(96)00096-3
更新日期：1996-12-01 00:00:00
abstract：OBJECTIVES:NGAL (Neutrophil Gelatinase-Associated Lipocalin) has emerged as a new biomarker for the identification of acute kidney injury. Reliable clinical evaluations require a simple, robust test method for NGAL, and knowledge of specimen handling and specimen stability characteristics. We evaluated the performance ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.12.008
更新日期：2010-04-01 00:00:00
abstract：BACKGROUND:Colorectal cancer (CRC) is one of the most common cancers worldwide, and emerging lines of evidence have implicated circular RNAs (circRNAs), a novel class of endogenous noncoding RNAs, in CRC development. However, whether plasma circRNAs might be novel diagnostic biomarkers for CRC remains unclear. METHODS...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2019.10.012
更新日期：2019-12-01 00:00:00
abstract：OBJECTIVE:MicroRNA-331 (miR-331) has shown regulatory activity against several genes whose expression has been claimed to be deregulated in breast tumors, including that of epidermal growth factor receptor 2 (HER2). Herein, the clinical value of miR-331 expression was investigated by analyzing its levels in breast beni...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2018.07.008
更新日期：2018-09-01 00:00:00
abstract：OBJECTIVES:To evaluate the effect of Matrix metalloproteinase 7 -181A/G polymorphism (rs11568818) on the risk of cancer, we performed a meta-analysis. DESIGN AND METHODS:24 case-control studies were identified by searching Pubmed, Embase, ISI, OVID MEDLINE and EBSCO databases. Odd ratios and corresponding 95% confiden...
journal_title：Clinical biochemistry
pub_type： 杂志文章,meta分析
doi：10.1016/j.clinbiochem.2013.07.015
更新日期：2013-11-01 00:00:00
abstract：OBJECTIVES:A conformation sensitive gel electrophoresis (CSGE) method was modified for detection of LDL receptor gene mutations. DESIGN AND METHODS:Usage of a temperature gradient against running time was tested with 33 identified mutations in the LDL receptor gene. Most of the mutations were missense. RESULTS:32 mut...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2005.02.002
更新日期：2005-06-01 00:00:00
abstract：:The ES 300 (Boehringer Mannheim Diagnostics, Indianapolis, IN) is a new automated immunoassay analyzer intended for the quantitative determination of a wide range of analytes. We compared its performance to enzyme immunoassay (EIA), fluorescence polarization immunoassay (FPIA), and radioimmunoassay (RIA) methods for c...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(92)80029-g
更新日期：1992-08-01 00:00:00
abstract：OBJECTIVE:Living kidney donors have been part of a successful kidney transplant programme in Norway for almost 50 years. Glomerular filtration rates (GFRs) have tended to remain stable at about 70% of pre-donation levels. Plasma total homocysteine (Hcy) has an inverse relationship to kidney function, and previous repor...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2014.02.003
更新日期：2014-04-01 00:00:00
abstract：INTRODUCTION:The clinical catchment area for the Metabolic service at the Women's and Children's Hospital in Adelaide, South Australia, covers nearly 2.5millionkm2. Care of children with metabolic disorders in these remote areas is assisted from Adelaide, and at times, using plasma ammonia results from laboratories up ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2016.11.025
更新日期：2017-04-01 00:00:00
abstract：:The measurement of serum 25-hydroxycalciferol (25-OH D) has proved to be a reliable index of the vitamin D nutritional status in man providing the renal 25-hydroxycalciferol-1 alpha-hydroxylase is functional. Since it is known that 25 OHD binds to alpha-globulins for its transport to the kidney, we have developed a co...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(80)90735-3
更新日期：1980-06-01 00:00:00
abstract：:Liquid chromatography (LC) coupled to mass spectrometry (MS) or tandem mass spectrometry (MS/MS) is a well-established and widely used technique in clinical and forensic toxicology as well as doping control especially for quantitative analysis. In recent years, many applications for so-called multi-target screening an...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2016.07.010
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVES:To examine the diagnostic validity of bone alkaline phosphatase (BAP) in serum (a marker of bone formation) and of urinary excretion of pyridinium cross-links (PYR) (a marker of bone resorption) for detection of bone metastases. DESIGN AND METHODS:Two heterogeneous immunoassays were employed for determinati...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(95)96621-a
更新日期：1995-10-01 00:00:00
abstract：OBJECTIVES:The newly developed glomerular filtration rate (GFR)-estimating equations developed by the CKD-EPI Collaboration and Feng et al. (2013) that are based on standardized serum cystatin C (ScysC), combined/not combined with serum creatinine (Scr), require further validation in China. We compared the performance ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2014.05.060
更新日期：2014-09-01 00:00:00
abstract：OBJECTIVES:To evaluate the evidence concerning gFOBT kits and to develop gFOBT standards to be implemented by the Ontario Colorectal Cancer (CRC) Screening Program (the "Program"). DESIGN AND METHODS:We evaluated 3 aspects of gFOBT kits: 1) performance factors; 2) usability factors; and 3) laboratory factors. We obtai...
journal_title：Clinical biochemistry
pub_type： 杂志文章,meta分析
doi：10.1016/j.clinbiochem.2008.08.069
更新日期：2008-11-01 00:00:00
abstract：OBJECTIVES:Matrix-assisted laser desorption time-of flight ionization (MALDI)-imaging MS (IMS) with MSMS analysis using on-tissue tryptic digests is a powerful tool for identification of disease-related proteins in formalin-fixed paraffin-embedded (FFPE) tissue sections. We applied this novel IMS technique, not only to...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2013.05.063
更新日期：2013-10-01 00:00:00
abstract：:1. A procedure for the assay of triglycerides on the ABA-50 is described. 2. The Boehringer Mannheim Triglyceride (Fully Enzymatic method) reagent kit has been evaluated with this method and was found to be satisfactory. ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(77)93190-3
更新日期：1977-12-01 00:00:00
abstract：OBJECTIVES:Amyloidosis results from local or systemic extracellular deposition of insoluble protein fibrils and is associated with certain rare mutations in APOA1 encoding apolipoprotein (apo) A-I. DESIGN AND METHODS:In a patient with renal-predominant amyloidosis with neuropathy, we found the APOA1 G26R mutation. CO...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/s0009-9120(03)00110-3
更新日期：2003-11-01 00:00:00
abstract：OBJECTIVE:Evaluation of serum beta-2-microglobulin (beta2M) in an automated analyzer. DESIGN AND METHODS:The DakoCytomation beta2M kit is an antibody based reagent intended for quantitative determination of beta2M in serum and plasma by rate nephelometry. RESULTS:The limit of blank is 0.16 mg/L. The method is linear ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.06.030
更新日期：2009-10-01 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：BACKGROUND:In several studies, it was shown that there was a marked decrease in serum levels of HDL-C during infection and inflammation in general. In particular, a decrease in the level of serum HDL-C was also shown in pneumonia. Correlations between inflammatory markers such as acute phase proteins, cytokines and ser...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2006.01.015
更新日期：2006-03-01 00:00:00
abstract：OBJECTIVE:In this study, we determined the assay performance criteria necessary to produce acceptable results for >or=98% of neonate bilirubin samples collected by capillary heel-stick. STUDY DESIGN AND METHODS:We determined serum free hemoglobin levels in 151 heel-stick serum samples to determine the hemolysis level....
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2007.08.003
更新日期：2007-11-01 00:00:00
abstract：:Plasma membrane-bound 5'-nucleotidase (5'-NT), gamma-glutamyltransferase (gamma-GT) and soluble deoxynucleotidyltransferase (TdT) were studied in peripheral blood cells (PBMN) of 35 individuals, 26 male and 9 female, with circulating anti-HIV antibodies. Twenty-six were drug abusers, 2 were drug abusers and homosexual...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(89)80026-8
更新日期：1989-08-01 00:00:00
abstract：:We present a systematic parametric method for resolving age-related reference intervals based on differential-polynomial regression analysis. Application of this method to plasma zinc concentrations in a childhood population results in a third degree polynomial expression from which two statistically independent age-r...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(79)90056-0
更新日期：1979-02-01 00:00:00
abstract：OBJECTIVE:To investigate the protective effect of ischemic preconditioning (IP) in the early phase of reperfusion injury. DESIGN AND METHODS:Control rat lungs were subjected to 3 h of perfusion, whereas the lungs of the ischemia-then-reperfusion (I/R) group were subjected to 2 h of cold ischemia following 30 min of pe...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2005.04.002
更新日期：2005-07-01 00:00:00
abstract：OBJECTIVES:Non-invasive prenatal aneuploidy testing (NIPT) by next-generation sequencing of circulating cell-free DNA in maternal plasma relies on chromosomal ratio (chrratio) measurements to detect aneuploid values that depart from euploid ratios. Diagnostic performances are known to depend on the fraction of fetal DN...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2018.06.015
更新日期：2018-09-01 00:00:00
abstract：OBJECTIVES:The aim of our study was to examine the influence of atorvastatin on lipid parameters, particularly on HDL, and on the activity of LCAT and CETP and how they affect the activity of the HDL-associated antioxidant enzyme paraoxonase. DESIGN AND METHODS:Thirty-three patients with types II.a and II.b primary hy...
journal_title：Clinical biochemistry
pub_type： 临床试验,杂志文章
doi：10.1016/j.clinbiochem.2006.05.016
更新日期：2007-01-01 00:00:00
abstract：:Children whose parents had early coronary heart disease were investigated. In order to assess high-risk parameters serum total cholesterol (TC), total triglyceride (TT), high-density lipoprotein cholesterol (HDLC), low-density lipoprotein cholesterol (LDLC), lipid peroxide (LP), prostacyclin (PGI2), thromboxane (TX) l...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(91)90541-l
更新日期：1991-04-01 00:00:00
