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 intermediate in transsulfuration and remethylation pathways of methionine metabolism. Within the context of a collaboration between Monastir and Grenoble Universities and because a gas chromatograph mass spectrometer (GC-MS) instrument was available in Monastir, we proposed to transpose a GC-MS method previously developed in Grenoble's hospital for this parameter and to validate it by comparison with the liquid chromatography tandem mass spectrometry (LC-MS-MS) method, used at present. Analytical performances were good: detection limit 0.4 micromol/L and linear range up to 4 mg/L (29.6 micromol/L), and between-run and within-run precision with coefficients of variation < 5% and < 8 %, respectively. The comparison with LC-MS-MS method showed a good correlation (y = 0.9874 x -0.208; r(2) = 0.84). Mean difference from LC-MS-MS was -0.4 micromol/L. Plasma concentrations of homocysteine (mean + SD) determined among Tunisian adults, 29 men, 27 women, of the same age were respectively: 11.6 +/- 2.4 micromol/L and 10.1 +/- 2.7 micromol/L, p = 0.025. This method is now currently used to evaluate tHcy concentration in patients with risk factors for cardiovascular disease.
journal_name
Ann Biol Clin (Paris)journal_title
Annales de biologie cliniqueauthors
Belkhiria MN,Ducros V,Harzallah K,Jarraya F,Cordonnier D,Favier A,Achour Asubject
Has Abstractpub_date
2007-07-01 00:00:00pages
393-8issue
4eissn
0003-3898issn
1950-6112journal_volume
65pub_type
杂志文章abstract：:Bacillus alvei hemolytic toxin has been characterized in five main steps from a 18 hours culture supernatant fluid. 50% ammonium sulfate precipitations are followed by Sephadex gel filtrations. After that we proceed to an isoelectric focusing in a narrow pH gradient (from 4 to 6). A final step consists in a gel filtra...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:We have evaluated the methodological quality of the Rémic (microbiology guidelines - bacteriology and mycology) of the Société française de microbiologie (edition2007), using to AGREE criteria, which are consensual at an international level, in particular at the the World Health Organisation (WHO) and at the European ...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2011.0536
更新日期：2011-03-01 00:00:00
abstract：:The analyzers have been defined as follows: the analyzers are multiparametric (at least 5 parameters available simultaneously), selective, operating patient by patient, list price on May 1, 1984 below 1,000,000 francs, and distributed in France after January 1, 1981. This definition applies in particular to systems al...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
abstract：:This document is a proposal of questionnaire for a self-assessment of the post-examination phase: results validation, reporting and transmitting, post-examination samples keeping and documents archival storage. The questions allow to check that the laboratory fulfils the ISO 15189 Standard and COFRAC SH REF 02 documen...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2012.0675
更新日期：2012-02-01 00:00:00
abstract：:Today, medical prescriptions of proteinuria or albuminuria, which are depending on medical status of patients, still depend on doctors. Indeed, according to their medical specialty or to the recommendations they are following, they could prescribe either proteinuria or albuminuria. The consequences are practical for l...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2019.1412
更新日期：2019-02-01 00:00:00
abstract：:International guidelines emphasize the importance of LDL cholesterol (LDL-C) assay in the care and follow-up of patients with cardiovascular risk. Most studies and common practice use Friedewald's formula for LDL-C calculation. The accuracy of the result depends closely on the precision of the input parameters (total ...
journal_title：Annales de biologie clinique
pub_type： 杂志文章,多中心研究
doi：
更新日期：2005-01-01 00:00:00
abstract：:The full blood count (FBC) is the most prescribed laboratory test in France. Due to the lack of data, there is a great variability in reference values of the FBC, between medical laboratories. The aim of this work was to provide normal reference values for FBC in adults. These normal values were defined in a populatio...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2014.0979
更新日期：2014-09-01 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：:The identification of a product absorbed by an opiate consumer is sometimes problematic since there is no specific biomarker for all molecules. We developed an ultra-high pressure liquid chromatography coupled to tandem mass spectrometry technique which allows the identification and the quantification of 25 opiates in...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2014.0944
更新日期：2014-03-01 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：:Cytomegalovirus infection is a major problem for transplant recipients. It has been recently shown that the rate of increase in viral load correlate with CMV disease in transplant recipients. The risk is very high in persons undergoing bone marrow transplantation and in some cases preemptive therapy is used as soon as...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：:Bacterial infectious pathology presents a series of new features which have been elucidated over the last few decades. These new aspects are derived from various factors: a development of our state of knowledge, a change in the ecology of a number of bacteria and a change in the receptiveness of patients. Modern infec...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
abstract：:We propose a double antibody radioimmunoassay for human prostatic acid phosphatase (PAP) in serum for diagnosis and management of prostatic adenocarcinoma under treatment. The antigen is purified from human prostatic fluid by a gel-filtration on Sephadex G 100 followed by affinity chromatography on Con A Sepharose. A ...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1982-01-01 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：BACKGROUND:probiotic agents are increasingly used as over the counter drugs for the treatment of a variety of inflammatory and infectious conditions. The rationale of their use seems to restore a friendly bacterial flora in the gut. Complications of probiotic use, although rarely reported, can occur. OBSERVATION:we de...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2008.0210
更新日期：2008-03-01 00:00:00
abstract：:Second generation hepatitis C virus (HCV) Elisas are currently in use in Europe and have been submitted for approval in the United States. These new assays contain additional antigens from the putative nucleocapsid and NS-3 regions of the HCV genome in addition to the c100-3 antigen present in first generation Elisas....
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1992-01-01 00:00:00
abstract：:The SFBC working group aimed to deal with biological tests outside the French nomenclature that may be useful for the follow-up of dialysis patients. Our discussion was divided into 3 parts: 1) evaluation of peritoneal membrane characteristics; 2) monitoring of renal replacement therapy using regional citrate anticoag...
journal_title：Annales de biologie clinique
pub_type： 杂志文章,评审
doi：10.1684/abc.2019.1459
更新日期：2019-08-01 00:00:00
abstract：:Depression is a pathology frequently observed in general medicine (10%). Treatment of depression makes great use of drugs from different pharmacological classes. The optimal posology is difficult to establish, and clinicians prefer to avoid side effects by prescribing low regimen. This study is related to an evaluatio...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1999-07-01 00:00:00
abstract：:Horseradish peroxidase is often used as an antibody-coupled enzyme and several procedures have been developed to obtain IgG-peroxidase conjugates. The most widely used are coupling with periodate or glutaraldehyde. To compare the efficiency of these methods, the authors conducted periodate coupling or glutaraldehyde c...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1995-01-01 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：:Hemolysis should lead to changes in test results. Our study evaluated the impact of hemolysis on 26 blood measurements of stat biochemistry markers (sodium, potassium, chloride, urea, creatinine, glucose, total protein, calcium, magnesium, inorganic phosphorus, uric acid, C-reactive protein, total bilirubin, ASAT, ALA...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2015.1090
更新日期：2015-11-01 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：:Three methods (rapid bioassay, enzyme immunoassay and fluoroimmunoassay) for the determination of amikacin level in serum are compared. The statistical analysis of the results show correlation coefficients equal to 0.967 (EMIT versus FIA), 0.970 (bioassay versus FIA) and 0.983 (bioassay versus EMIT). The three methods...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:Increased level of C reactive protein in the serum of neonates indicates the presence of infection, whereas the classic signs (hyperthermia, neutrophilia...) may often fail. So the determination of C reactive protein is useful and has to be rapidly performed on a small quantity of blood. The authors evaluate a fluores...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1989-01-01 00:00:00
abstract：:The authors propose a technique of labelling of leukocytes based on the phagocytic power of these cells with regard to sulphide particles in the colloidal state labelled with 90mmTc. These labelled leukocytes maintain their normal function and can be detected in the inflammatory foci created in experimental animals in...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1975-01-01 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：:The articular cartilage is frequently destroyed in rheumatic diseases. Among the various responsible factors, enzymes and especially collagenases play a leading role. Their action explains the collagen degradation linked with cartilage destruction. The author recalls the origin, mechanism of action of the articular co...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1986-01-01 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：:This paper points out the structural and physiological data of galectin-3, and emphasizes its role in cardiac fibrosis and heart failure pathophysiology. Then we summarize the optimal conditions for sampling, assays and we discuss the interpretation of results. ...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2014.0977
更新日期：2014-07-01 00:00:00
abstract：:The diagnosis of Protein C (PC) congenital deficiency is of first importance because it leads, more frequently than Antithrombin III deficiency, to serious thromboembolic accidents in young patients, even when PC levels are slightly decreased (40 p. cent up to 60 p. cent). In order to measure PC activity, the authors ...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1988-01-01 00:00:00
