Abstract：
:Guanidinoacetate (GAA) and creatine (Cr) are creatine deficiency syndromes (CDS) biochemical markers. We describe a liquid chromatography - tandem mass spectrometry method (LC/MSMS) performing simultaneous analysis of GAA, Cr and creatinine (Crn). Study of Cr uptake by fibroblasts for Cr transporter defect diagnosis is also assessed. The three butylated compounds were separated by liquid chromatography and MSMS quantification was achieved by isotopic dilution with electrospray positive ion mode. Linearity was demonstrated from 0 to 600, 675 and 4500 μmol/L and limit of quantification was 0.1, 0.04 and 0.9 μmol/L for GAA, Cr, and Crn respectively. Intra- and inter-assay precision for each analyte was better than 11%, and standard recoveries ranged from 83 to 109%. Reference values in cerebrospinal fluid samples for subjects ≥14 years were also established for GAA and Cr. Five fibroblast cell lines were used for Cr uptake study. Cr uptake by fibroblasts increased with the Cr media concentrations and was significantly inhibited by 3-guanidinopropionate (500 μmol/L), a Cr transporter inhibitor (96h incubation, [Cr media] = 25 μmol/L, p<0.05). A reliable LC/MSMS method for the diagnosis of CDS was developed in different biological fluids. Finally, results of the Cr uptake study reinforce the interest of this technique to diagnose Cr transporter deficiencies.
journal_name
Ann Biol Clin (Paris)journal_title
Annales de biologie cliniqueauthors
Van Noolen L,Monneret D,Ducros V,Corne C,Lunardi J,Faure Pdoi
10.1684/abc.2013.0871subject
Has Abstractpub_date
2013-07-01 00:00:00pages
429-37issue
4eissn
0003-3898issn
1950-6112pii
abc.2013.0871journal_volume
71pub_type
杂志文章abstract：:The stimulation regimens and the results of ovulation induction in anovulatory patients and in patients suffering from a Luteinized Unruptured Follicle (LUF) syndrome are discussed as well as the findings concerning superovulation in IVF cycles. The percentage of multiple pregnancies (less than or equal to 20 p. cent)...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1987-01-01 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：:HTLV genomic and antigenic features, replication way as well as associated pathology are recalled herein. The epidemiologic angle and the different transmission ways are also related. HTLV infection diagnostic implements are detailed: screening and specially confirmatory tests are brought to light with the help of con...
journal_title：Annales de biologie clinique
pub_type： 杂志文章,评审
doi：
更新日期：1998-09-01 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：:Elderly patients are at high risk of over-anticoagulation and of haemorrhagic risk when on warfarin, especially during treatment induction. In Charles Foix Hospital, a 800-bed geriatric hospital, we specifically developed for in-patients older than 70 years (target INR 2.5) a simple low-dose warfarin induction regimen...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：2006-05-01 00:00:00
abstract：:We compared the results of two methods of measurement of HbA(1c) before replacing the current method on Integra 800 by the HPLC method on an apparatus recently put on the market, the G8. The comparative study of the results for 119 patients was carried out. The reproducibility obtained with the G8 method is good with ...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2010.0420
更新日期：2010-03-01 00:00:00
abstract：:In this report, the authors have studied the plasma and red blood cell concentrations of both zinc and copper in 90 uremic patients treated by intermittent hemodialysis. They found that plasmatic and erythrocytic levels of zinc together with the copper red blood cell concentrations determined before and after the hemo...
journal_title：Annales de biologie clinique
pub_type： 杂志文章,评审
doi：
更新日期：1989-01-01 00:00:00
abstract：:We quantify the impact of several variables including site of blood draw, delay in measurement, and use of the cyanide antidote hydroxocobalamin on detection of both normal (<2 mmol/L) and elevated (>6 mmol/L) human plasma lactate. An in vivo study assessed effects of venous or arterial origin of blood samples. Two in...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2017.1310
更新日期：2018-01-01 00:00:00
abstract：:Laboratory diagnosis of pheochromocytoma must give evidence of increased catecholamine production. This requires measurement of catecholamines and their metabolites (normetanephrine NMN, metanephrine MN and/or VMA) in urine or in plasma. The various assays can be also performed during dynamic test that stimulate or in...
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：:The proliferation of commercial immunoassays for the determination of apolipoproteins AI and B as parameters of risk for coronary heart disease and the discordance between the values obtained with the systems have made more urgent than ever the need for standardization of these assays. The authors report here the resu...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:Con A stimulated lymphocytes from some patients with primary glomerular disease release in vitro a lymphokine, the vascular permeability factor (VPF). House dust sensitization was early reported among these patients. We therefore studied the action of this specific mitogen on VPF production in 58 patients with primary...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1984-01-01 00:00:00
abstract：:Adult neutropenia, defined as a blood neutrophil count below 1.5 G/L, is a common condition. The most common cause of acute neutropenia is a drug-related reaction or an acute infectious disease. In chronic forms many etiologies are possible, sometimes poorly-defined, requiring precise explorations. The purpose of this...
journal_title：Annales de biologie clinique
pub_type： 杂志文章,评审
doi：10.1684/abc.2018.1393
更新日期：2018-12-01 00:00:00
abstract：:Human hair analysis is now recognized for evaluating someone exposure to xenobiotics: drugs of abuse, pharmaceuticals and polluants. This paper describes analytical methods than can be used by biologists. For drugs of abuse after decontamination, hydrolysis of hair, selective extraction and derivatization, determinati...
journal_title：Annales de biologie clinique
pub_type： 杂志文章,评审
doi：
更新日期：1997-09-01 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：:French medical laboratories must be accredited before November 2016 according to NF/EN/ISO 15189 standard. However, technical accreditation guidelines cannot be applied literally for the determination of specific IgE for several reasons: more than 600 allergen tests, lack of international gold standard, limited extern...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2013.0830
更新日期：2013-05-01 00:00:00
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journal_title：Annales de biologie clinique
pub_type： 杂志文章,评审
doi：
更新日期：1997-07-01 00:00:00
abstract：:Anti-erythrocyte alloimmunization may occur following the transfusion of platelet concentrates, in response to the presence of residual erythrocytes. Immunization against RH1 (D) antigen is the most frequent, but transfusion of RH1 compatible platelet concentrates is not always possible because of supply constraints. ...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2009.0336
更新日期：2009-05-01 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：:Hydrolysis of a solution of amylopectin by serum or urinary amylase leads to a reduction of the turbidity of this solution, observed at 340 nm. Adapted to centrifugal analysis, this method permits 15 estimations in 3 minutes with a serial reproducibility of 2.7 per cent, and a daily reproducibility of 6 per cent. The ...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:We resume here the guidelines about sample processing and transport for laboratory tests. All the steps of the pre-examination phase process, downstream to the recording of the requests, are described in this document. The purpose is to assure a secure and optimal sample management. The traceability of all the steps o...
journal_title：Annales de biologie clinique
pub_type： 杂志文章,实务指引
doi：10.1684/abc.2011.0549
更新日期：2010-12-01 00:00:00
abstract：:A liquid chromatography procedure for routine determination of urinary estriol concentrations is described. After enzymic hydrolysis of a 1 ml sample, automatic extraction with chloroform/ethyl acetate, purification by chromatography on a disposable "minicolumn" of AG 1-X2, urinary estrogens are separated with normal ...
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 authors propose a modification of the method of use of the API 20E system permitting more rapid identification of Enterobacteriaceae within six hours (3 hours preculture and 3 hours incubation on an API 20E plate) it was possible to identify correctly 67% of 192 strains studied at species level and 75.5% studied a...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：:Haemochromatosis is the most common genetic disease in individuals of Northern European origin. This disorder of iron metabolism, for which the molecular basis remains poorly understood, is characterized by an excessive absorption of dietary iron through the duodenal mucosa. Progressive iron loading of parenchymal org...
journal_title：Annales de biologie clinique
pub_type： 杂志文章,评审
doi：
更新日期：1997-05-01 00:00:00
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：:ATB 32 GN was tested with 279 gram negative non fastidious rods = 188 Enterobacteriaceae and 91 non-enterobacteriaceae. This micro-method included 32 carbon substrate's assimilation tests, read and interpreted automatically after incubation for one or two days at 30 degrees C. 93.5 p. cent of all bacteria are correctl...
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 paper describes the assessment of the homogeneity and stability of a purified and lyophilized human thyroglobulin (Tg), and characterizes its immunoreactivity. The purified and lyophilized Tg is intended to be used as a primary reference material to establish calibration of working serum based reference material....
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 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：:The relations between chromosomal diseases and mental retardation can be envisaged in three different ways: 1) Pharmacological approach shows a peculiar sensitivity of the cholinergic system in trisomic 21 children. A trouble in the manufacture of cholinergic mediator is plausible. 2) General biochemistry shows a slig...
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 diagnosis of non ST elevation myocardial infarction (NSTEMI) is very important for the emergency doctor. According to the literature copeptin, a marker of the endogenous stress, combined with troponin could be of interest in this diagnosis. The objective of the study was to investigate the association of high-sens...
journal_title：Annales de biologie clinique
pub_type： 杂志文章
doi：10.1684/abc.2013.0884
更新日期：2013-09-01 00:00:00
abstract：:Lysosomal storage diseases are genetically determined metabolic diseases characterized by dysmorphology and dysfunction of the lysosomal system. The lysosomal pathology can have different causes; these are (i) the deficiency of a lysosomal enzyme or subunit thereof, (ii) the deficiency of a protein assisting one or mo...
journal_title：Annales de biologie clinique
pub_type： 杂志文章,评审
doi：
更新日期：1994-01-01 00:00:00
