Validation of a rapid, comprehensive and clinically relevant amino acid profile by underivatised liquid chromatography tandem mass spectrometry.

abstract：BACKGROUND:The goal of this study was to detect modification in the expression of plasma proteins and/or post-translational modifications of their structure in patients with end stage renal disease. METHODS:Serum samples from 19 adult patients treated by maintenance hemodialysis (MHD) were analyzed in comparison to se...

journal_title：Clinical chemistry and laboratory medicine

authors： Donadio E,Piccolomini F,Dimuccio V,Felicioli A,Balestreri E,Cianti R,Armini A,Bini L,Felicioli R,Donadio C

更新日期：2009-01-01 00:00:00

abstract：BACKGROUND:Laboratory reference intervals are not necessarily reflecting the range in the background population. This study compared creatine kinase (CK) reference intervals calculated from a large sample from a Norwegian population with those elaborated by the Nordic Reference Interval Project (NORIP). It also assesse...

journal_title：Clinical chemistry and laboratory medicine

authors： Lilleng H,Johnsen SH,Wilsgaard T,Bekkelund SI

更新日期：2011-11-10 00:00:00

abstract：:Since serum and plasma D-dimer concentrations correlate very well, we evaluated the comparability of other haemostasis activation markers in plasma and serum. Prothrombin fragment F1+2, fibrin monomer and D-dimer concentrations were measured with commercially available immunoassays in serum and plasma. Serum to plasma...

journal_title：Clinical chemistry and laboratory medicine

authors： Korte W,Riesen WF

更新日期：2001-07-01 00:00:00

abstract：BACKGROUND:Low back pain (LBP) is a very frequent condition, affecting most people at some point throughout their life. This cross-sectional study was aimed to investigate a selected panel of cytokines and inflammatory biomarkers in patients with or without LBP. METHODS:The study population consisted of 104 patients d...

journal_title：Clinical chemistry and laboratory medicine

authors： Lippi G,Dagostino C,Buonocore R,Aloe R,Bonaguri C,Fanelli G,Allegri M

更新日期：2017-08-28 00:00:00

abstract：BACKGROUND:Hepatitis C virus (HCV) is one of the most common viral infections worldwide causing major human chronic pathology. Viral RNA can be detected 1-3 weeks after infection and in cases where HCV RNA is still detectable after 6 months, the patient is considered to be chronically infected. Early detection is cruci...

journal_title：Clinical chemistry and laboratory medicine

authors： Bashiardes S,Richter J,Christodoulou CG

更新日期：2008-01-01 00:00:00

abstract：BACKGROUND:Standardization of parathyroid hormone (PTH) assays is a major issue, especially in hemodialyzed (HD) patients. Two automated third generation PTH assays (Roche Elecsys and DiaSorin Liaison) are now available. These assays are specific for the (1-84) PTH and do not cross-react with the (7-84) fragment, contr...

journal_title：Clinical chemistry and laboratory medicine

authors： Cavalier E,Delanaye P,Lukas P,Carlisi A,Gadisseur R,Souberbielle JC

更新日期：2014-08-01 00:00:00

abstract：:Translational research and translational medicine (referred to hereafter as translational research) are interchangeable terms that underline the pressing need to translate into practical benefits for those affected by disease the extensive investments divested by the private and public sectors in biomedical research. ...

journal_title：Clinical chemistry and laboratory medicine

authors： Plebani M,Marincola FM

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND:When certain inflammatory processes occur, toxic granulation neutrophils (TGNs) appear in the blood showing prominent cytoplasmic granules. Currently, the granularity of TGNs is analyzed by manual microscopy of blood smears. The SYSMEX XE-5000 is an automated hematology analyzer, which can measure toxic gran...

journal_title：Clinical chemistry and laboratory medicine

authors： Zimmermann M,Cremer M,Hoffmann C,Weimann K,Weimann A

更新日期：2011-07-01 00:00:00

abstract：BACKGROUND:In analogy with other areas of laboratory diagnostics, the pre-analytical phase is the leading source of variability also in urinalysis. We carried out a multicentric study for comparing results obtained from first-voided and mid-stream urine samples. METHODS:Each of the six hospital-based clinical laborato...

journal_title：Clinical chemistry and laboratory medicine

authors： Manoni F,Gessoni G,Alessio MG,Caleffi A,Saccani G,Silvestri MG,Poz D,Ercolin M,Tinello A,Valverde S,Ottomano C,Lippi G

更新日期：2011-12-20 00:00:00

abstract：BACKGROUND:Biological variation (BV) data enable assessment of the significance of changes in serial measurements observed within a subject and are used to set analytical quality specifications. This data is available in a database held in Westgard website (http://www.westgard.com/biodatabase1.htm). Some limitations of...

journal_title：Clinical chemistry and laboratory medicine

authors： Carobene A

更新日期：2015-05-01 00:00:00

abstract：BACKGROUND:Validation of blood collection tubes are important to determine the role of different collection tubes which influence the assurance of laboratory results. We compared two different tubes (Improvacuter™ and Becton Dickinson [BD] Vacutainer™) and investigated the effect of gel and storage time in comparison w...

journal_title：Clinical chemistry and laboratory medicine

authors： Zungun C,Yılmaz FM,Boru EG,Topcuoglu C

更新日期：2015-02-01 00:00:00

abstract：:The etiology of cardiovascular diseases is known to be multi-factorial. Some forms of cardiovascular disease are influenced by unclear genetic factors but are predominantly affected by factors such as diet, obesity, cigarette smoking, diabetes mellitus and dyslipidaemia. Some are caused by specific gene defects, with ...

journal_title：Clinical chemistry and laboratory medicine

authors： Pang CP

更新日期：1998-08-01 00:00:00

abstract：BACKGROUND:Accurate reference intervals (RIs) based on a healthy pediatric population are essential for pediatric test result interpretation. The CALIPER project has recruited a large healthy cohort and completed a series of a priori studies to address gaps in pediatric RIs. As immunoassays from different manufacturers...

journal_title：Clinical chemistry and laboratory medicine

authors： Higgins V,Fung AWS,Chan MK,Macri J,Adeli K

更新日期：2018-01-26 00:00:00

abstract：BACKGROUND:Pneumatic tube transport of blood samples reduces turnaround times and labour. However, the preanalytical effects on new clinical chemistry parameters and instruments are not fully known. The aim of this study was to evaluate the effect of pneumatic tube transport on haematology and coagulation parameters, i...

journal_title：Clinical chemistry and laboratory medicine

authors： Wallin O,Söderberg J,Grankvist K,Jonsson PA,Hultdin J

更新日期：2008-01-01 00:00:00

abstract：BACKGROUND:Genetic predisposition to hemochromatosis involves several different point mutations in the HFE gene. Routine testing for two such mutations (H63D and S65C) using real-time genotyping deserves special care, as these mutations are in close proximity (6 bp) of each other. METHODS:A novel assay was designed fo...

journal_title：Clinical chemistry and laboratory medicine

authors： Klaassen CH,van Aarssen YA,van der Stappen JW

更新日期：2008-01-01 00:00:00

abstract：:Angiogenesis is a crucial process in tissue remodeling during growth, both in the embryo and the adult. In our study we concentrated on the direct effect of beta-carotene on human umbilical cord originating from endothelial progenitor cells (EPCs). beta-Carotene uptake by EPCs was measured using a HPLC method. The det...

journal_title：Clinical chemistry and laboratory medicine

authors： Kieć-Wilk B,Polus A,Grzybowska J,Mikołajczyk M,Hartwich J,Pryjma J,Skrzeczyńska J,Dembińska-Kieć A

更新日期：2005-01-01 00:00:00

abstract：BACKGROUND:Post-menopausal osteoporosis (PO) affecting a large fraction of elderly women, is triggered by the decline in 17β-estradiol (E2) level. Experimental studies in animal models and cell cultures have suggested that the fall in E2 might contribute to developing oxidative stress (OS) which in turn is believed to ...

journal_title：Clinical chemistry and laboratory medicine

authors： Cervellati C,Bonaccorsi G,Cremonini E,Bergamini CM,Patella A,Castaldini C,Ferrazzini S,Capatti A,Picarelli V,Pansini FS,Massari L

更新日期：2013-02-01 00:00:00

abstract：:There is currently no well-established biomarker for Parkinson's disease. The need to better diagnose the condition, define the subtypes of disease, and follow its course independent of any symptomatic drug effects is well-established. In this review, we will begin by reviewing the evidence for biological fluid biomar...

journal_title：Clinical chemistry and laboratory medicine

authors： Breen DP,Michell AW,Barker RA

更新日期：2011-03-01 00:00:00

abstract：BACKGROUND:Knowledge of the fatty acid composition of lipid classes in human plasma is an important factor in the investigation of human metabolism. Therefore, a method for the analysis of neutral lipid (NL), phospholipid (PL) and free fatty acids (FFA) in human plasma has been developed and validated. METHODS:Separat...

journal_title：Clinical chemistry and laboratory medicine

authors： Firl N,Kienberger H,Hauser T,Rychlik M

更新日期：2013-04-01 00:00:00

abstract：Background:Liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based assays are employed in more and more clinical laboratories to quantify steroids. The steroid quantification by LC-MS/MS shows great value in screening or diagnosing endocrine disorders; however, the number of functional steroids included in the ...

journal_title：Clinical chemistry and laboratory medicine

authors： Wang Z,Wang H,Peng Y,Chen F,Zhao L,Li X,Qin J,Li Q,Wang B,Pan B,Guo W

更新日期：2020-02-21 00:00:00

abstract：:The annual inter- and intra-individual biological variation, including the circannual rhythmic variation, of the serum concentrations of magnesium and ionized calcium has been investigated in a group of 51 apparently healthy volunteers. Venous blood specimens were collected on intervals of once a month within a one-ye...

journal_title：Clinical chemistry and laboratory medicine

authors： Valero-Politi J,Ginard-Salvá M,González-Alba JM

更新日期：2001-01-01 00:00:00

abstract：:Despite many years of study, clinical trials of new drugs to prevent thrombosis have often been disappointing. Part of the problem lies in our incomplete understanding of the regulation of plasminogen activation and/or inhibition in vivo. We have previously shown that in vitro nitration of plasminogen in plasma by per...

journal_title：Clinical chemistry and laboratory medicine

authors： Hathuc C,Hermo R,Schulze J,Gugliucci A

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND:Surface-enhanced laser desorption and ionization time-of-flight mass spectrometry (SELDI-TOF/MS), a laboratory-friendly technique, is used to identify biomarkers for cancer. The aim of the present study was to explore the application of SELDI proteomic patterns in serum for distinguishing between cases of pa...

journal_title：Clinical chemistry and laboratory medicine

authors： Navaglia F,Fogar P,Basso D,Greco E,Padoan A,Tonidandel L,Fadi E,Zambon CF,Bozzato D,Moz S,Seraglia R,Pedrazzoli S,Plebani M

更新日期：2009-01-01 00:00:00

abstract：BACKGROUND:The oral glucose tolerance test (OGTT) is recommended to screen for diabetes in patients with coronary artery disease. We hypothesized that testing for glycated hemoglobin (HbA1c), in addition to the OGTT, in screening for abnormal glucose regulation may help to reveal patients with β-cell function impairmen...

journal_title：Clinical chemistry and laboratory medicine

authors： Li YH,Sheu WH,Lee WJ,Lee IT,Lin SY,Lee WL,Liang KW,Wang JS

更新日期：2018-07-26 00:00:00

abstract：BACKGROUND:We verified the analytical performance of strip-based handheld glucose meters (GM) for prescription use, in a comparative split-sample protocol using blood gas samples from a surgical intensive care unit (ICU). METHODS:Freestyle Precision Pro (Abbott), StatStrip Connectivity Meter (Nova), ACCU-CHEK Inform I...

journal_title：Clinical chemistry and laboratory medicine

authors： Claerhout H,De Prins M,Mesotten D,Van den Berghe G,Mathieu C,Van Eldere J,Vanstapel F

更新日期：2016-01-01 00:00:00

abstract：BACKGROUND:Highly-sensitive cardiac troponin (cTn) assays are being introduced into the market. In this study we argue that the classification of cTn assays into sensitive and highly-sensitive is flawed and recommend a more appropriate way to characterize analytical sensitivity of cTn assays. STUDY:The raw data of 225...

journal_title：Clinical chemistry and laboratory medicine

authors： Ungerer JP,Pretorius CJ

更新日期：2014-04-01 00:00:00

abstract：:In the Emergency Department it is mandatory to establish the diagnosis and the prognosis of acute pancreatitis as soon as possible. To evaluate whether the association of serum lipase either with serum beta2-microglobulin or with C-reactive protein allows simultaneously to establish the diagnosis and the prognosis of ...

journal_title：Clinical chemistry and laboratory medicine

authors： Pezzilli R,Morselli-Labate AM,Barakat B,Fiocchi M,Cappelletti O

更新日期：1998-12-01 00:00:00

abstract：:This document summarizes the steps in development of a new IFCC Master Program and outlines some of the ways the IFCC would assist in setting up such a regional Program. This is intended to be of assistance to those who wish to embark on such an endeavour. ...

journal_title：Clinical chemistry and laboratory medicine

authors： Fink NE,Allen LC,International Federation of Clinical Chemistry and Laboratory Medicine.,IFCC Committee on Education and Curriculum Development, Education and Management Division.

更新日期：2003-10-01 00:00:00

abstract：BACKGROUND:Decreased brain-derived neurotrophic factor (BDNF) has been demonstrated in animal models and patients with depression. However, little is known about changes in BDNF in post-stroke depression (PSD). This study investigated the changes in serum BDNF in patients with PSD, and evaluated whether serum concentra...

journal_title：Clinical chemistry and laboratory medicine

authors： Zhou Z,Lu T,Xu G,Yue X,Zhu W,Ma M,Liu W,Zhu S,Liu X

更新日期：2011-02-01 00:00:00

abstract：BACKGROUND:Adult-type hypolactasia is characterized by the inability to digest lactose during adulthood, due to lactase (LCT) deficiency. It is usually diagnosed by the measurement of breath hydrogen increase after a lactose load (breath hydrogen test, BHT). A substitution of C to T at position -13910 bp upstream the L...

journal_title：Clinical chemistry and laboratory medicine

authors： Mottes M,Belpinati F,Milani M,Saccomandi D,Petrelli E,Calacoci M,Chierici R,Pignatti PF,Borgna-Pignatti C

更新日期：2008-01-01 00:00:00