Abstract:
:In order to introduce the approach of HCV genotyping in our laboratory, a comparative study of 3 molecular and 1 serological methods, was conducted on 62 HCV RNA positive sera. The molecular genotyping methods target the 5'untranslated (UTR) region of the virus genome and are based on an amplification of the viral genome, followed by partial sequencing, analyses of restriction fragment length polymorphisms (RFLP) or molecular hybridation (Inno LiPA, Innogenetics). The serological method or serotyping is based on the detection of antibodies to genotype specific epitopes derivated from the Non Structural (NS) 4 region of the viral genome (HCV 1-6 Serotyping Assay, Murex Biotech). "In house" methods, sequencing and RFLP, identified the genotype for 13 samples classified as non-typables by commercial kits Inno LiPA test and HCV 1-6 Serotyping Assay. Mixed infections revealed, especially by Inno LiPA, could not be identified by partial sequencing, which seems to detect only predominant genotype. For 4 samples, genotyping results of the methods targeting the 5'UTR were discordant with those of the serotyping of the NS4 region. Commercial kits are efficient to determine HCV genotypes, particularly in the context of antiviral therapy and patient's follow-up, sequencing remains the best alternative for more complete characterisation of viral strains and for epidemiological investigations.
journal_name
Ann Biol Clin (Paris)journal_title
Annales de biologie cliniqueauthors
Djebbi A,Sadraoui A,Triki Hsubject
Has Abstractpub_date
2003-11-01 00:00:00pages
689-95issue
6eissn
0003-3898issn
1950-6112journal_volume
61pub_type
杂志文章abstract::Production of factor VIII or factor IX inhibitors is a major complication limiting the efficiency of substitutive therapy in haemophiliacs. Moreover, viral infections, the second serious complication of replacement therapy, may be associated to the occurrence of antiphospholipid antibodies which paradoxically lead to ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2012.0765
更新日期:2012-11-01 00:00:00
abstract::A rapid method of preparation of ornithine carbamyl transferase from rat liver is described. The enzyme preparation obtained is lacking in carbamyl phosphate synthetase activity. It may thus be used for the estimation of this enzyme on liver fragments obtained by needle biopsy of the liver in the diagnosis of neonatal...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract::SFBC working group on critical care testing describes in this paper guideline for the management of laboratory medicine examination process in emergency conditions. After a summary on French standards and regulations, the critical care testing perimeter and definitions of stat levels are presented in different context...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,实务指引
doi:10.1684/abc.2015.1113
更新日期:2016-03-01 00:00:00
abstract::Acquired hemophilia A (AHA) is a rare and potentially severe bleeding disorder caused by circulating autoantibodies directed against factor (F) VIII. Apart from idiopathic cases, AHA is associated with autoimmune diseases, cancers, use of medications, pregnancy and the post-partum period. We report the case of a 78-ye...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2018.1405
更新日期:2019-04-01 00:00:00
abstract::A new automated system for identification of anaerobes in 4 hours, ATB 32 A, was evaluated with 124 strains isolated in routine and 10 collection strains, and was compared with techniques commonly used in the hospital. The system allowed identification of 89.5% (111/124) of clinical strains, including 6.4% (7/124) str...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::The simultaneous presence of homogeneous and heterogeneous reactions at different binding sites of a multiepitope antigen makes the description of the kinetic parameters of the so called "one step" solid phase immunometric assays complex. The authors extended the "one step" approach to the concept of the "soluble sand...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract::Among myeloproliferative disorders, Essential Thrombocythaemia is the most frequent and the one associated with the better prognosis. Although median survival is above 15 years, Essential Thrombocythaemia may be complicated by haemostatic life-threatening manifestations. Occurrence of thromboembolic or haemorrhagic ep...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:
更新日期:2004-05-01 00:00:00
abstract::Total plasma homocysteine emerged in the past few years as an independent risk factor for cardiovascular diseases. This test is now currently prescribed for the diagnosis of unexplained thrombosis in young adults or recurrent thrombosis in patients with arteriopathy. This sulphured amino-acid is an important intermedi...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2007-07-01 00:00:00
abstract::Tissue Plasminogen Activator (t-PA), Single Chain Urokinase Plasminogen Activator or pro-Urokinase (scu-PA or pro-UK) and acyl enzymes are new thrombolytic agents, characterized by a high fibrin affinity, so that they provoke only mild systemic fibrinolytic effect. Their infusion would allie good thrombolytic activity...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract::This review of the immunological diagnosis of parasitic diseases defines the various indications, the means of collection and preparation, the various levels of specificity and the choice of parasitic antigen which should be used for immuno-diagnosis. The detection and assay of circulating antibodies relies on the tec...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:
更新日期:1983-01-01 00:00:00
abstract::Precise identification and determination of MICs of clinical isolates of Acinetobacter identified to other species than the hospital species A. baumannii were carried out. On 260 Acinetobacter strains isolated in an hospital over a 6 months period, 31 strains (12 p. cent) were identified to species other than A. bauma...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::Premature rupture of the membranes (PROM) is a frequent event affecting 3% of pregnancies. PROM causes 30% of premature deliveries and 20% of perinatal mortality. The diagnosis relies mainly on the clinical visualization of the amniotic fluid flow in the vagina. If not, clinicians can use bedside tests detecting eithe...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2018.1346
更新日期:2018-06-01 00:00:00
abstract::The present importance of streptococcal pathology implicates the identification of the streptococcal groups. The authors have carried out a comparative study of the various methods of extraction of the group specific antigen. They demonstrated the advantages and disadvantages of each method and consider the pronase ex...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract::We present the distribution of cytochrome P450, the terminal oxidase of the microsomal drug-metabolizing system among the different species, organs, and its subcellular localization. Physicochemical properties, and more specially spectral properties, of this hemoprotein are reviewed. We also described the two microsom...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:
更新日期:1975-01-01 00:00:00
abstract::In this study the authors compare two automated coagulation instruments: the koagulab-40A (Orthodiagnostics Systems) and l'ACL-100 (Instrumentation Laboratory) using two different methods of detection, photo-optical and nephelemetric respectively. The three parameters studied are: prothrombin time (PT) (82 samples), a...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::The aim of this study is to present an evaluation of HbA(1c) Assay on Architect CI8200 (Abbott Diagnostic). The measurement includes Hb assay by colorimetry and HbA(1c) by immunoturbidimetry. The percentage of HbA(1c) is the report HbA(1c)/complete Hb with a conversion coefficient. Repetability (n = 30; CV: 1.15-1.91%...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2009.0301
更新日期:2009-01-01 00:00:00
abstract::Determination of sex-hormone-binding-globulin was performed by three methods: binding, electroimmunodiffusion and DELFIA methods. Results of normal and pathological values correlated well with the three techniques. ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1990-01-01 00:00:00
abstract::Two cases of newborn haemolytic disease because of ABO incompatibility are reported. In both cases, blood erythroblastosis exceeded 300 per 100 leukocytes at birth. Both newborns developed early jaundice and one presented with anaemia. Intensive phototherapy begun soon after birth was an effective treatment. The diagn...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2004-05-01 00:00:00
abstract::Circulating citrulline is emerging as an innovating biomarker candidate for assessment of intestinal function. Amino acid synthesized by enterocytes of intestinal mucosal, citrulline is not included in proteins or nutrition products and is a precursor for production of arginine by the kidney. Plasma citrulline is, in ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:10.1684/abc.2011.0609
更新日期:2011-09-01 00:00:00
abstract::Cystic fibrosis (CF), is the most common life-shortening autosomal recessive disorder in Caucasians. It is caused by mutations in a single gene on the long arm of chromosome 7 that encodes the cystic fibrosis transmembrane conductance regulator (CFTR) protein. CF is characterized by abnormal Na+ and Cl- ion transport ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:10.1684/abc.2008.0285
更新日期:2008-11-01 00:00:00
abstract::Urinary protein electrophoresis analysis (UPE) is an essential investigation for the study of abnormal proteins in urines. The interpretation of this analysis must be comprehensive and relevant. Indeed, UPE is often requested by clinicians and may have an important impact in patient's management. This paper presents t...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2016.1200
更新日期:2017-02-01 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::Red cell ferritin is a residue of erythroblast ferritin. It reflects the balance between the iron supply to the erythroid marrow and the need for haemoglobin synthesis. Erythrocyte ferritin can be measured in haemolysates after discarding plasma and leucocytes by different methods. The decrease in erythrocyte ferritin...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:
更新日期:1993-01-01 00:00:00
abstract::In 2003, for the scheme of the French national external quality assessment, Afssaps sent to medical laboratories a sample for which two analyses could be carried out: the electrophoresis of proteins and the characterization for monoclonal immunoglobulin. The purpose of this new approach was to make it possible to the ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:2005-01-01 00:00:00
abstract::Multidrug resistance (MDR) phenotype expression was evaluated retrospectively in 87 patients with acute myeloid leukemia (AML), 69 with de novo AML, ten with relapsed AML and eight with AML secondary to myelodysplastic syndrome (MDS). MDR phenotype, characterized by P-glycoprotein expression (MRK16 monoclonal antibody...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:
更新日期:1996-01-01 00:00:00
abstract:OBJECTIVE:to develop a rapid and reliable real-time PCR to detect polymorphisms of angiotensinogen (AGT), to compare the two methods of MS-PCR (Mutagenically Separated PCR) and real-time PCR to determine three polymorphisms of the angiotensinogen gene M235T, the A (-6) G and A (-20) C. METHODS:the method of real-time ...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2011.0598
更新日期:2011-07-01 00:00:00
abstract::Exploring coagulation in newborns and children is a challenge due to the low levels of both procoagulant factors and inhibitors. Conventional coagulation tests might be inadequate to explore all of these changes. The aim of the study is to evaluate the thrombin generation assay, a global test to explore coagulation, i...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2020.1607
更新日期:2020-12-01 00:00:00
abstract::The multimeric glycoprotein Von Willebrand factor (vWF), is produced by vascular endothelium and platelet. If some constitutionals deficiencies leading to hemorrhagic syndrome have been explored in the literature, increased production of vWF observed during cellular distress and pregnancy have not been explored in our...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2014.0956
更新日期:2014-05-01 00:00:00
abstract::The search for sperm is part of the examinations wich may be prescribed, following a request of jucicial services, in case of a suspicion of sexual assault. This article applies to detail how the different phases, pre-analytical, analytical and post-analytical, must be absolutely adhered to so that the biologist, expe...
journal_title:Annales de biologie clinique
pub_type: 杂志文章
doi:10.1684/abc.2008.0274
更新日期:2008-09-01 00:00:00
abstract::The recent development of specific and sensitive biochemical markers reflecting the overall rate of bone formation and bone resorption, has markedly improved the non invasive assessment of bone turnover in various metabolic bone diseases, especially for osteoporosis. The immunoassay of human osteocalcin recognizing th...
journal_title:Annales de biologie clinique
pub_type: 杂志文章,评审
doi:
更新日期:1999-03-01 00:00:00