Influence of reduction in the elution times on HPLC glycohaemoglobin results.

Abstract:

OBJECTIVES:To compare HPLC methods with short and long elution times for HbA1c measurement in blood. METHODS:Comparison between G7-Tosoh (1.2 min); Bio-Rad-Variant-II-Turbo (1.3 min) and Arkray-HA-8160 (2.9 min). RESULTS:Passing-Bablok regression equations were: Y=0.17+0.96X; Y=-0.39+1.01X; Y=-0.40+1.0X and the means of the differences using Bland-Altman Plot were 0.02; -0.34; 0.32 for HA-8160/G7-Tosoh, HA-8160/Variant-II-Turbo and G7-Tosoh/Variant-II-Turbo, respectively. CONCLUSIONS:Faster elution methods had no problems on reproducibility of results obtained by slower elution methods.

journal_name

Clin Biochem

journal_title

Clinical biochemistry

authors

Leon-Justel A,Santotoribio JD,Dominguez-Pascual I,Delgado AL,Macias C,Herrera MT,Leal A,Mangas MA,Acosta D,Guerrero JM

doi

10.1016/j.clinbiochem.2009.07.003

subject

Has Abstract

pub_date

2009-10-01 00:00:00

pages

1582-4

issue

15

eissn

0009-9120

issn

1873-2933

pii

S0009-9120(09)00296-3

journal_volume

42

pub_type

杂志文章
  • Pitfalls to avoid when comparing CK-MB fractionation by antibody inhibition reaction and DEAE-Sephadex column chromatography.

    abstract::1. We compare the Roche ion-exchange column chromatography and the Merck antibody inhibition reaction for CK-MB fractionation in 51 sera. Measurements of total CK and CK-MB activities must be done under the same conditions for each method in order to correlate the results. 2. A decisional value must be used for the in...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0009-9120(79)80139-3

    authors: Desjarlais F,Daigneault R

    更新日期:1979-08-01 00:00:00

  • WITHDRAWN: Clinical Chemistry: 50 years of stimulating changes and more to come.

    abstract::This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. ...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2006.03.003

    authors: Delvin EE

    更新日期:2006-04-27 00:00:00

  • Plasma neutrophil gelatinase-associated lipocalin as a biomarker for acute kidney injury in critically ill patients with suspected sepsis.

    abstract:OBJECTIVES:The aim of this study was to investigate the diagnostic utility of plasma neutrophil gelatinase-associated lipocalin (NGAL) as an early objective biomarker to predict acute kidney injury (AKI) in critically ill patients with suspected sepsis, for whom procalcitonin (PCT) was used for the diagnosis and stagin...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2013.05.069

    authors: Kim H,Hur M,Cruz DN,Moon HW,Yun YM

    更新日期:2013-10-01 00:00:00

  • Levels changes of blood leukocytes and intracellular signalling pathways in COPD patients with respect to smoking attitude.

    abstract:OBJECTIVES:To examine whether the proportions of blood leukocyte subsets are altered in COPD, and to assess the disturbances in signalling pathways in the leukocytes of COPD patients, with respect to smoking history. DESIGN AND METHODS:The study was performed at the Faculty of Pharmacy and Biochemistry and University ...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2007.12.013

    authors: Rumora L,Milevoj L,Popović-Grle S,Barisić K,Cepelak I,Grubisić TZ

    更新日期:2008-04-01 00:00:00

  • False positives in plasma ammonia measurement and their clinical impact in a pediatric population.

    abstract:OBJECTIVE:Plasma ammonia measurement is greatly influenced by pre-analytical conditions, which may lead to false positives. We wanted to evaluate the prevalence and clinical impact of plasma ammonia false positives in a pediatric population. DESIGN AND METHODS:Over a 28-month period, charts of patients with elevated a...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2007.01.024

    authors: Maranda B,Cousineau J,Allard P,Lambert M

    更新日期:2007-05-01 00:00:00

  • Fluorometric and time-resolved immunofluorometric assays for protein-tyrosine phosphatase activity.

    abstract:OBJECTIVE:To develop sensitive nonisotopic assays for protein-tyrosine phosphatase (PTP) activity. METHODS:The fluorometric assay is based on the fact that phosphotyrosine but not tyrosine forms highly fluorescent complexes with Tb3+. Thus, PTP activity can be followed by measuring the decrease of fluorescence due to ...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/0009-9120(95)02026-8

    authors: Galvan B,Christopoulos TK

    更新日期:1996-04-01 00:00:00

  • Recent developments in meconium and hair testing methods for the confirmation of gestational exposures to alcohol and tobacco smoke.

    abstract::The use of alcohol and tobacco is prevalent among pregnant women despite the well-known adverse effects of these substances imposed on the developing fetus and immense public health education efforts. Confirmation of gestational exposures to these compounds have relied mostly on maternal self-reporting, which is often...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章,评审

    doi:10.1016/j.clinbiochem.2004.01.010

    authors: Chan D,Caprara D,Blanchette P,Klein J,Koren G

    更新日期:2004-06-01 00:00:00

  • Tentative identification of hemoglobin variants in the Bio-Rad VARIANT II Hb A1C method.

    abstract:OBJECTIVE:To evaluate if peak characteristics, the retention time, and percentage of total hemoglobin of an unknown peak on the Bio-Rad VARIANT II Hb A1c method may be used to establish a tentative identification of hemoglobin variants. METHOD:The peak characteristics, retention time, and percentage of total hemoglobi...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2004.11.004

    authors: Higgins TN,Ridley B

    更新日期:2005-03-01 00:00:00

  • The association between serum triglycerides and gamma glutamyl transpeptidase activity in diabetes mellitus.

    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

    authors: Martin JV,Hague RV,Martin PJ,Cullen DR,Goldberg DM

    更新日期:1976-08-01 00:00:00

  • Analytical measurement of serum 25-OH-vitamin D₃, 25-OH-vitamin D₂ and their C3-epimers by LC-MS/MS in infant and pediatric specimens.

    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

    authors: Yazdanpanah M,Bailey D,Walsh W,Wan B,Adeli K

    更新日期:2013-09-01 00:00:00

  • Unilateral nephrectomy causes an early abrupt decrease in plasma arginine and simultaneous reduction in glomerular filtration rate in living kidney donors.

    abstract:OBJECTIVES:Living donor kidney transplantation is regarded as beneficial to allograft recipients and not particularly detrimental to the donors. Recently we have documented a reduced glomerular filtration rate (GFR) in living kidney donors (LKDs). Considering kidneys as essential for l-arginine (Arg) metabolism, in the...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2013.04.031

    authors: Zunić G,Tomić A,Spasić S

    更新日期:2013-10-01 00:00:00

  • Does interferon and ribavirin combination therapy ameliorate growth hormone deficiency in HCV genotype-4 infected patients?

    abstract:OBJECTIVES:To explore the impact of response to interferon and ribavirin antiviral therapy on human growth hormone (hGH) levels in Egyptian chronic hepatitis C genotype-4 infected patients. DESIGN AND METHODS:We studied eighty Egyptian HCV infected patients visiting outpatient clinics of Tropical Medicine and Hepatolo...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2011.08.1145

    authors: Eskander EF,Abd-Rabou AA,Yahya SM,Shaker OG,Mohamed MS

    更新日期:2012-01-01 00:00:00

  • Application of fluorescence polarization to the determination of urinary lysozyme activity.

    abstract::A fluorescence polarization (FP) technique was applied to the assay of lysozyme activity in human urine. In this assay system, reaction between enzyme and fluorescein-labelled substrate produced a decrease in the fluorescein polarization (P) value. Enzyme activity and rate of decrease of P value exhibited a hyperbolic...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0009-9120(85)80022-9

    authors: Miura H

    更新日期:1985-02-01 00:00:00

  • Defect in dermatan sulfate in urine of patients with Ehlers-Danlos syndrome caused by a CHST14/D4ST1 deficiency.

    abstract:PURPOSE:Dermatan sulfate (DS) plays a number of roles in a wide range of biological activities such as cell signaling and tissue morphogenesis through interactions with various extracellular matrix proteins including collagen. Mutations in the carbohydrate sulfotransferase 14 gene (CHST14) encoding CHST14/dermatan 4-O-...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2017.02.018

    authors: Mizumoto S,Kosho T,Hatamochi A,Honda T,Yamaguchi T,Okamoto N,Miyake N,Yamada S,Sugahara K

    更新日期:2017-08-01 00:00:00

  • Endostatin predicts mortality in patients with acute dyspnea - A cohort study of patients seeking care in emergency departments.

    abstract:BACKGROUND:Increased levels of circulating endostatin predicts cardiovascular morbidity and impaired kidney function in the general population. The utility of endostatin as a risk marker for mortality in the emergency department (ED) has not been reported. AIM:Our main aim was to study the association between plasma e...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2019.10.004

    authors: Carlsson AC,Wessman T,Larsson A,Leijonberg G,Tofik R,Ärnlöv J,Melander O,Ruge T

    更新日期:2020-01-01 00:00:00

  • Plasma arginase concentration measured by an enzyme-linked immunosorbent assay (ELISA) in normal adult population.

    abstract::Human liver arginase has many biological effects on lymphocytes, macrophages, liver cells, and tumor cells, in addition to its major role in the liver urea cycle. We have developed a sandwich enzyme-linked immunosorbent assay (ELISA) method to quantitate arginase concentrations in plasma that can be applied to various...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/0009-9120(93)80009-j

    authors: Wang SR,Chen ML,Huang MH,Lin HY,Tsai JJ,Kuo BI

    更新日期:1993-12-01 00:00:00

  • Chemokines and transplant outcome.

    abstract::Improving long-term management, life-quality and outcome of transplant recipients continues to be a challenge. The impact of highly chemoattractant proteins as chemokines on transplant outcome is undeniable. These immunoactive molecules are critical in a wide variety of physiological and pathological processes, such a...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章,评审

    doi:10.1016/j.clinbiochem.2015.07.026

    authors: Crescioli C

    更新日期:2016-03-01 00:00:00

  • Defective expression of alpha-L-fucosidase by lymphoid cells of a fucosidosis patient.

    abstract::Fucosidosis is an inherited lysosomal storage disease due to a deficiency of alpha-L-fucosidase activity. Exponentially growing lymphoid cell cultures from a fucosidosis patient (JH) had 16-fold lower extracellular alpha-L-fucosidase protein and 72-fold lower intracellular alpha-L-fucosidase protein with negligible ca...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/0009-9120(91)80018-x

    authors: DiCioccio RA,Gordon BA

    更新日期:1991-06-01 00:00:00

  • Oxidative imbalance in low/intermediate-1-risk myelodysplastic syndrome patients: The influence of iron overload.

    abstract:OBJECTIVE:To assess the generation of reactive oxygen species (ROS) and the involvement of the main antioxidant pathways in low/intermediate-1-risk myelodysplastic syndromes (MDS) with iron overload (IOL). METHODS:We examined the levels of superoxide anion (O2-), hydrogen peroxide (H2O2), antioxidants (glutathione, GS...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2017.05.018

    authors: Ivars D,Orero MT,Javier K,Díaz-Vico L,García-Giménez JL,Mena S,Tormos C,Egea M,Pérez PL,Arrizabalaga B,Ruiz MÁ,Yagüe N,Tormo M,Sancho-Tello R,Gomes A,Algueró C,O'Connor JE,Sáez GT,Carbonell F,Collado R

    更新日期:2017-11-01 00:00:00

  • Transthyretin as a marker to predict outcome in critically ill patients.

    abstract:BACKGROUND:A determination of serum Transthyretin (TTR, Prealbumin) level is an objective method of assessing protein catabolic loss of severely ill patients and numerous studies have shown that TTR levels correlate with patient outcomes of non-critically ill patients. We evaluated whether TTR level correlates with the...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2008.06.016

    authors: Devakonda A,George L,Raoof S,Esan A,Saleh A,Bernstein LH

    更新日期:2008-10-01 00:00:00

  • Is there an analytical or diagnostic advantage from including trisialo transferrin into the fraction of carbohydrate-deficient transferrin? Lessons from a comparison of two commercial turbidimetric immunoassays with the carbohydrate-deficient transferrin

    abstract:OBJECTIVES:Carbohydrate-deficient transferrin CDT has originally been defined as the sum of isotransferrins exhibiting isoelectric point values > or = 5.7 asialo, monosialo, and disialo transferrin but may also include at least in part trisialo transferrin when measured by modern commercial immunoassays. To examine the...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0009-9120(00)00189-2

    authors: Lipkowski M,Dibbelt L,Seyfarth M

    更新日期:2000-11-01 00:00:00

  • Effect of repeated freeze-thaw cycles on maternal serum biological markers for the detection of fetal trisomies.

    abstract:OBJECTIVES:We studied the stability of maternal blood markers for screening for Down syndrome (alpha-fetoprotein, unconjugated estriol, intact human chorionic gonadotropin (hCG) and free beta-human chorionic gonadotropin) upon repeated freeze-thaw cycles. DESIGN AND METHODS:Forty-three samples collected from second tr...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0009-9120(97)00095-7

    authors: Massé J,Forest JC,Moutquin JM,Degrandpre P

    更新日期:1997-10-01 00:00:00

  • Matrix metalloproteinase7 -181A/G polymorphism is associated with increased cancer risk among high-quality studies: Evidence from a meta-analysis.

    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

    authors: Wu J,Guan X,Li YT,Bai P,Wu J

    更新日期:2013-11-01 00:00:00

  • Relation between iron content of serum ferritin and clinical status factors extracted by factor analysis in patients with hyperferritinemia.

    abstract:OBJECTIVES:The aims of this study were to develop a new technique for determination of iron content of serum ferritin (ICF, micromol Fe/mg protein) and to investigate relations between ICF and clinical status in patients with hyperferritinemia. METHODS:ICF values were determined by a combination of immunoprecipitation...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/s0009-9120(02)00380-6

    authors: Yamanishi H,Iyama S,Yamaguchi Y,Kanakura Y,Iwatani Y

    更新日期:2002-10-01 00:00:00

  • BiliChek transcutaneous bilirubin meter overestimates serum bilirubin as measured by the Doumas reference method.

    abstract:OBJECTIVES:To determine the relationship between BiliChek TcB (Respironics, Marietta GA) and Doumas reference serum or plasma total bilirubin (TSB). DESIGN AND METHODS:Pooled samples with values assigned by the Doumas reference method were used to establish the relationship between a local laboratory and reference Dou...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2010.04.065

    authors: Karon BS,Wickremasinghe AC,Lo SF,Saenger AK,Cook WJ

    更新日期:2010-08-01 00:00:00

  • A novel mutation on the transferrin gene abolishes one N-glycosylation site and alters the pattern of transferrin isoforms, mimicking that observed after excessive alcohol consumption.

    abstract:OBJECTIVES:In the process of obtaining a driver's license, a healthy 28year old man presented increased levels of disialo-transferrin (TF) (approx. 20%, ref. value<2) by HPLC analysis of TF isoforms (%CDT), while other markers of excessive alcohol consumption (PEth, MCV and γ-GT) were in the normal range. The objective...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2015.12.001

    authors: Grahn A,Bengtson P,Eklund E,Asin-Cayuela J

    更新日期:2016-04-01 00:00:00

  • Urinary excretion of glycosaminoglycans in urological disease.

    abstract::Altered urinary excretion of glycosaminoglycans (GAG) has been reported in patients with nephrolithiasis, with chronic glomerulonephritis, and incipient diabetic nephropathy, but evaluation of urinary GAG has not been reported in infections and proliferating diseases of the urinary tract. Urinary excretion of GAG was ...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/0009-9120(87)90013-0

    authors: Baggio B,Gambaro G,Cicerello E,Mastrosimone S,Marzaro G,Borsatti A,Pagano F

    更新日期:1987-12-01 00:00:00

  • Evaluation of the Boehringer Mannheim ES 300 immunoassay analyzer and comparison with enzyme immunoassay, fluorescence polarization immunoassay, and radioimmunoassay methods.

    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

    authors: Camara PD,Velletri K,Krupski M,Rosner M,Griffiths WC

    更新日期:1992-08-01 00:00:00

  • Association of chitotriosidase enzyme activity and genotype with the risk of nephropathy in type 2 diabetes.

    abstract:OBJECTIVE:The immune-inflammatory system has been implicated in the pathogenesis of diabetic nephropathy; however, many of the mechanisms involved remain unclear. Chitotriosidase enzyme is an active human chitinase and a major protein product of activated macrophages. Although playing an important role in innate and ac...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章

    doi:10.1016/j.clinbiochem.2015.11.009

    authors: Elmonem MA,Amin HS,El-Essawy RA,Mehaney DA,Nabil M,Kamel LN,Farid IM

    更新日期:2016-04-01 00:00:00

  • A review of room temperature storage of biospecimen tissue and nucleic acids for anatomic pathology laboratories and biorepositories.

    abstract:UNLABELLED:Frozen biospecimens are crucial for translational research and contain well-preserved nucleic acids and protein. However, the risks of freezer failure as well as space, cost, and environmental concerns of frozen biospecimens are substantial. OBJECTIVE:The purpose of the study was to review the current statu...

    journal_title:Clinical biochemistry

    pub_type: 杂志文章,评审

    doi:10.1016/j.clinbiochem.2013.12.011

    authors: Lou JJ,Mirsadraei L,Sanchez DE,Wilson RW,Shabihkhani M,Lucey GM,Wei B,Singer EJ,Mareninov S,Yong WH

    更新日期:2014-03-01 00:00:00