Abstract:
:The measurement of CDT (Carbohydrate Deficient Transferrin) is an essential biological tool in the diagnosis and follow-up of alcohol abuse. It is also employed as a marker of abstinence for the restitution of driving licences. However, the precision of measurement, and the between laboratory homogeneity of the results are still discussed. The ion exchange followed by immunodetermination of CDT is available in two products, the Tina Quant %CDT (Roche, Mannheim, Germany) and the %CDT TIA (Bio-Rad, Hercules, United States). This multicentre study was undertaken: 1) to evaluate the analytical characteristics of these kits and the homogeneity of the results from one laboratory to another, independently of the method used, 2) to validate the differences between the proposed normal values of both kits, 3) to study the possibility of using commercial control sera as external quality control. Four analytical systems were included in the study (Roche Modular/Hitachi 717, Beckman Coulter Immage and LX20, Dade Behring BNII). Determinations were carried out on pools of sera, commercial control sera, kit controls, and 30 serums of patients. These latter were also analyzed in capillary electrophoresis in order to establish correlations between the techniques. The calibrations were stable over one 2 weeks period. The repeatability of measurements spread out from 3,1% to 24,7%, for a mean value lower than 10%. The commercial control sera provided reliable results, with values adapted to a routine quality control use. The results of the Bio-Rad applications were lower by approximately 20% than those of the Roche application, which justifies the difference of the normal values (2,6% versus 3%), and an identical classification of the patients in at least 27 of the 30 samples. We conclude that the analytical quality of the compared techniques, even if it could be improved, is sufficient to guarantee a good reliability of the results. An external quality control could be proposed by using the control sera that we tested.
journal_name
Ann Biol Clin (Paris)journal_title
Annales de biologie cliniqueauthors
Boehrer JL,Cano Y,Capolaghi B,Desch G,Dosbaa I,Estepa L,Hennache B,Schellenberg Fsubject
Has Abstractpub_date
2007-03-01 00:00:00pages
161-7issue
2eissn
0003-3898issn
1950-6112journal_volume
65pub_type
杂志文章,多中心研究abstract::Type 2 diabetes (T2DM) associated with non-alcoholic fatty liver disease (NAFLD) increases cardiovascular risk. Complex and subtle connections are established between hepatic dysfunction and adipose tissue hyperactivity. This relationship is mediated by insulin resistance, dyslipidemia and inflammation. Recently incre...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2019.1436
更新日期:2019-06-01 00:00:00
abstract::Therapeutic monitoring of patients participating in methadone maintenance programmes requires the qualitative or quantitative determination of methadone in urine before and during treatment. Generally immunoassay techniques are used for this determination, but more and more often measurement of plasma or serum levels ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract::Leukotrienes constitute a class of potent biological mediators of inflammation and anaphylaxis. However, their routine assay in various biological fluids is restricted by the complexity of the methodology. Previously this could only be performed by research laboratories with high pressure liquid chromatography and rad...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract::Recent advances in the characterization of microcrystals in tissue samples based on physico-chemical techniques are reviewed. It is a new opportunity for the physician to access early a diagnosis of rare but severe pathologies and to start a specific therapy able to delay or to stop an irreversible alteration of the o...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2015.1070
更新日期:2015-09-01 00:00:00
abstract::Bamifylline in therapeutic dosage may markedly disturb the determination of urinary 17-oxosteroids by Zimmermann's reaction, although the conditions of extraction and formation of this chromogenic substance are not always optimal for the metabolites of bamifylline. It is easy to suspect this interference as the chromo...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::An automatic continuous flow method is described for assay of plasmatic and urinary urea after hydrolysis by urease followed by NH4 assay with glutamic deshydrogenase in the same working solution. Precision and accuracy, comparison with chemical diacetylmonoxim method are studied. The interaction of endogenous NH4, th...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1980-01-01 00:00:00
abstract::Hemoglobin Alc is the result of non-enzymatic binding of a glucose molecule at the NH2 terminal of the beta chain. Assay of glycosylated hemoglobin is of great utility for the control efficacity of antidiabetic treatments, since such levels provide the clinician with an excellent index of glucose metabolism over the w...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1981-01-01 00:00:00
abstract::The oculo-cerebro-renal syndrome of Lowe is a rare X-linked disorder, caused by the inositol biphosphate 5-phosphatase deficiency, localized to the Golgi complex. Several mutations were reported in patient's OCRL gene leading to enzyme deficiency. We report a Moroccan case of OCRL syndrome of Lowe with a neo mutation ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2006-01-01 00:00:00
abstract::For the reliable urinary measurement of calcium, phosphate and uric acid, a pre-analytical process by adding acid or base to urine samples at laboratory is recommended in order to dissolve precipitated solutes. Several studies on different kind of samples and analysers have previously shown that a such pre-analytical ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2017.1271
更新日期:2017-10-01 00:00:00
abstract::To validate the use of the i-STAT portable point-of-care instrument, performance checks have been conducted to verify its accuracy for PCO2/PO2 (tonometry) and precision for pH/PCO2/PO2 (control solutions). Results obtained with the i-STAT (pH/PCO2/PO2/Hct) were also compared to those provided by the Bayer Rapidlab 86...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2002-03-01 00:00:00
abstract::Eighteen paraplegics with or without neurogenic osteo-arthropathy (POAN) were evaluated for variations in their urinary excretion levels of total (T), and free (L) hydroxyproline and its non-dialysable (ND) and dialysable (D) peptide fractions. Increases in urinary hydroxyproline, moderate rises in free hydroxyproline...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1982-01-01 00:00:00
abstract::Human embryonic stem cells (hESC) are obtained from the inner cell mass from the early embryo at blastocyste stage. Derived in cell lines for the first time in 1998, they can be maintained in culture in an undifferentiated state indefinitely under certain conditions. Two essential properties characterize hESC: pluripo...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:10.1684/abc.2008.0224
更新日期:2008-05-01 00:00:00
abstract::Evaluation of the neonates for jaundice and kernicterus is indispensable when early hospital discharge has become standard practice. Transcutaneous bilirubin (TcB) measurement is an advantageous option because of its non-invasive nature and the possibility of its use near the patient. The point of care device BiliChec...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2006-11-01 00:00:00
abstract::Albumin is the major circulating protein. It plays a fundamental role maintaining intra-vascular oncotic pressure and carrying many endogenous and exogenous substances. Variations of plasma albumin levels can be physiologic or pathologic and both qualitative and quantitative (more frequent) disorders are regrouped und...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:
更新日期:2005-03-01 00:00:00
abstract::The authors describe a method of fractionation of urinary 17-oxosteroids after purification of the urinary extract by Girard's T reagent. After solvolysis, enzyme hydrolysis and purification by Girard's T reagent, the 17-oxosteroids were estimated in the form of trimethyl silyl ethers by gas liquid chromatographye on ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::The aim of the study was to check if a slight and non visible hemolysis to naked eye such as that induced by blood coagulation could interfere in the immunonephelometric measurement of haptoglobin, and if this interference was dependent on the protein phenotype. Results confirmed that blood coagulation induced a non v...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2004-11-01 00:00:00
abstract::Macroprolactin is a complex of prolactin with immunoglobulins (IgG) that has limited or no biological activity in vivo. Immunoassays for prolactin have variable reactivity with macroprolactin. Therefore the presence of macroprolactin should be considered in the differential diagnosis of hyperprolactinemia. We compared...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2000-11-01 00:00:00
abstract::The development of enzymo-immunological technics and the synthesis of efficacious immuno-adsorbants has given rise to several immuno-enzymometric methods of which one, ELISA (enzyme-linked immunosorbent assay) has proved particularly practical and sensitive for the estimation of antibodies. ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:
更新日期:1978-01-01 00:00:00
abstract::In assisted reproductive technology (ART), serum levels of several key hormones are used to evaluate ovarian follicular reserve and to monitor gonadotropin-stimulated follicle growth. Currently, serum estradiol, FSH, LH and inhibin B levels are examined and combined at the beginning of the menstrual cycle to evaluate ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:
更新日期:2003-09-01 00:00:00
abstract::Advances in molecular biology applied to the location of genes have generated a real evolution for the screening of women carrying X-related diseases. It is however imperative to first try to define the status of these women using classical methods: bayesian calculations taking into account genealogical data and direc...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract::Anti-citrullinated cyclic peptide antibodies (ACPA) were initially considered very specific for the diagnosis of rheumatoid arthritis (RA), and can predict the prognosis of the disease. However, these antibodies can be detected in other autoimmune diseases, including systemic lupus erythematosus (SLE), the most common...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2020.1518
更新日期:2020-04-01 00:00:00
abstract::Diagnosis of type III hyperlipoproteinemia requires preparative ultracentrifugation in order to measure the cholesterol/triglyceride molar ratio into isolated d less than 1.006 lipoproteins. The authors describe an ultracentrifugation micromethod which needs 600 microliter of serum and can be completed within three ho...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1979-01-01 00:00:00
abstract::Spontaneous red blood cell (RBC) fragmentation occurs in some membrane erythropathies like hereditary elliptocytosis (HE); this phenomenon is produced in normal RBC by heating at 49 degrees C, but not at temperatures below this limit; fragmentation is usually quantified by counting the number of fragments/1000 RBC und...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1992-01-01 00:00:00
abstract::A diffuse lesion in the alveolar-capillary membrane appears as an initial pathological event which preludes the emergence of an Acute Respiratory Distress (ARDS) with pulmonary oedema. The implication of polymorphous nuclear cells (PMN) as the cells initiating this lesion remains solidly established. The activation of...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract::Glucose-6-phosphate dehydrogenase (G6PD) deficiency is the most frequent enzyme deficiency. It is a sex-linked genetic disease concerning mostly african, mediterranean and far-eastern populations. The main clinical expression is a hemolytic anemia which can be acute or chronic. During the neonatal period the disease m...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2004-07-01 00:00:00
abstract::The neuropathies associated with monoclonal IgM gammopathy reacted with glycoconjugated targets on a very antigenic epitope on the sulfated glucuronic glycolipids corresponding to SGPG and SGLPG (sulfoglucuronyl paragloboside and sulfoglucuronyl lactosaminyl paragloboside), myelin-associated glycoprotein (MAG) and sul...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2006-07-01 00:00:00
abstract::Biochemical diagnosis of hereditary metabolic diseases requires the detection and simultaneous identification of a large number of compounds, hence the interest in metabolic profiles. Amino acid chromatography allows the identification and quantification of more than forty compounds. As part of the accreditation proce...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,实务指引
doi:10.1684/abc.2020.1585
更新日期:2020-10-01 00:00:00
abstract::The aim of this study was to evaluate the automated urine test strip analyzer Aution Max AX 4280 which uses strips able to measure 12 urinary parameters. For precision study, we considered glucose, protein, blood, leukocytes, nitrite, and pH and the four first were compared with usual methods: chemical measurement or ...
journal_title:Annales de biologie clinique
pub_type: 临床试验,杂志文章
doi:
更新日期:2005-11-01 00:00:00
abstract::Iron plays a fundamental role in biology and its concentration in living organisms is regulated very precisely. Many molecules of storage and transportation are used to maintain the intracellular homeostasis. Cancer cells have alterations in this balance. Recent studies have shown that breast cancer cells present abno...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2012.0700
更新日期:2012-07-01 00:00:00
abstract::A 58-year-old patient, without any notable medical history, except for alcoholism and treated hypertension, developed anemia and leukopenia with macrocytosis. Folate deficiency was diagnosed and subsequently treated. Despite folate supplementation, the hematological parameters did not normalize. Further diagnosis inve...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2013.0863
更新日期:2013-07-01 00:00:00