Abstract:
:Biochemical reactions in cells which involve oxalic acid are described. It is shown that this compound is required for the formation of uracil and orotic acid. The former is a component of RNA which is common to all cells in the human metabolism. On the basis of the biochemical reactions described a possible treatment to relieve the effects of calcium oxalate renal calculi whose origin is related to the metabolic concentration of oxalic acid is proposed.
journal_name
Clin Chem Lab Medjournal_title
Clinical chemistry and laboratory medicineauthors
Robertson DSdoi
10.1515/CCLM.2011.238subject
Has Abstractpub_date
2011-09-01 00:00:00pages
1405-12issue
9eissn
1434-6621issn
1437-4331journal_volume
49pub_type
杂志文章abstract:BACKGROUND:Gestational age-specific reference values are essential for the accurate interpretation of haemostatic tests during pregnancy. METHODS:Our 1-year prospective study included 40 healthy pregnant women with a median age of 30 (range 22-40) years; the subjects were followed in order to establish the gestational...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/cclm-2014-1030
更新日期:2015-11-01 00:00:00
abstract:BACKGROUND:Lactase persistence is an inherited autosomal dominant trait that confers the ability to digest lactose after weaning. Lactose persistence is caused by single nucleotide variants in a regulatory element for the lactase gene (LCT). In Europeans, lactase persistence is associated with the nucleotide variant LC...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/cclm-2014-0123
更新日期:2014-09-01 00:00:00
abstract:BACKGROUND:To date, no practical tools are available to obtain optimal settings for moving average (MA) as a continuous analytical quality control instrument. Also, there is no knowledge of the true bias detection properties of applied MA. We describe the use of bias detection curves for MA optimization and MA validati...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/cclm-2016-0270
更新日期:2017-02-01 00:00:00
abstract::Metabolic conversion of homocysteine (Hcy) to a chemically reactive metabolite, Hcy-thiolactone, catalyzed by methionyl-tRNA synthetase is the first step in a pathway that is suggested to contribute to Hcy toxicity in humans. The accumulation of Hcy-thiolactone is detrimental because of its intrinsic ability to modify...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/CCLM.2005.177
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:alpha-Thalassemia is a worldwide disease and considered to be a major public health problem in countries within the so-called thalassemia belt. The complex genetics of alpha-thalassemias requires diagnostic methods with the capacity to screen rapidly and accurately for common causative mutations. METHODS:We...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,多中心研究
doi:10.1515/CCLM.2007.125
更新日期:2007-01-01 00:00:00
abstract::The non-forage feeding of dairy cows rich in fast absorption carbohydrates, the low value of their euglycemic-hyperinsulinemic clamp suggest a dysregulation of carbohydrate metabolism able to produce neurodegenerative disorders. Comparisons between Alzheimer's disease developed in diabetes mellitus and bovine spongifo...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2002.018
更新日期:2002-02-01 00:00:00
abstract::The history of prealbumin dates back to the early forties and may be divided into three parts, based on a chronological and functional approach. The first part--the discovery and the identification of prealbumin--was essentially based on classical protein chemistry methods. The second--the demonstration of prealbumin ...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/CCLM.2002.220
更新日期:2002-12-01 00:00:00
abstract::Clinical Proteomics biomarker discovery programs lead to the selection of putative new biomarkers of human pathologies. Following an initial discovery phase, validation of these candidates in larger populations is a major task that recently started relying upon the use of mass spectrometry approaches, especially in ca...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/CCLM.2011.744
更新日期:2011-10-08 00:00:00
abstract::This review presents an overview of current research on the use of capillary electrophoretic techniques for the analysis of drugs in biological matrices. The discussion focuses on the applicability of the methods for the identification of unknown toxic compounds, which is defined as systematic toxicological analysis (...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/CCLM.2003.117
更新日期:2003-06-01 00:00:00
abstract:BACKGROUND:The Schwartz 2009 creatinine-based revised formula is the only pediatric GFR estimating formula, which is compatible with the recent global creatinine standardization. This formula is only applicable if enzymatic creatinine methods are used. We propose an equation, taking into account the relative bias cause...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/cclm-2012-0033
更新日期:2012-03-09 00:00:00
abstract::Nitric oxide (NO) activates soluble guanylyl cyclase, which results in an increased synthesis of cyclic guanosine 3',5'-cyclic monophosphate (cGMP), smooth muscle relaxation and vasodilation. The heme group in soluble guanylyl cyclase binds NO and allosterically activates the catalytic site. In addition, a second allo...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/CCLM.2003.131
更新日期:2003-07-01 00:00:00
abstract::Experimental and observational studies support a role of plasma homocysteine levels (tHcy) in coronary artery disease (CAD). In the GENICA (Genetic and Environmental factors In Coronary Atherosclerosis) study, we found that high tHcy predicted cardiovascular mortality in hypertensive, but not in normotensive, patients...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/CCLM.2007.353
更新日期:2007-01-01 00:00:00
abstract::The aim of this study was to clarify the effects of anti-dsDNA antibodies on the titer and the nuclear staining pattern(s) in a fluorescent antinuclear antibody (FANA) assay using HEp-2 cells. Anti-dsDNA derived from 14 patients with systemic lupus erythematosus (SLE) was individually affinity-purified. The anti-dsDNA...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2002.009
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:The use of laboratory tests has been increasing in recent years due to various factors affecting laboratories, physicians, legal aspects, or patients themselves. METHODS:The efficacy of laboratory tests must be evaluated on the basis of the clinical benefits that they provide in terms of prevention, diagnos...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/CCLM.2009.335
更新日期:2009-01-01 00:00:00
abstract::The aim of this work was to assess the diagnostic value of anti-CCP-3 and anti-CCP-2 for the diagnosis of rheumatoid arthritis (RA) and determine whether anti-CCP-3 more accurately identifies patients with rheumatoid arthritis than anti-CCP-2. PubMed and CNKI databases were searched for studies published in English an...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,meta分析
doi:10.1515/cclm-2013-0798
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND:Squamous cell carcinoma antigen-immunoglobulin M (SCCA-IgM) is a useful biomarker for the risk of development of hepatocellular carcinoma (HCC) in patients with cirrhosis due to its progressive increase associated to HCC evolution. In patients with cirrhosis, other assays have been affected by interfering re...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2010.044
更新日期:2010-02-01 00:00:00
abstract::The soluble transferrin receptor (sTfR) distinguishes iron deficiency anemia from other types of anemia. Refractory iron deficiency anemia is often the onset symptom in malabsorption-induced celiac disease. We evaluated whether sTfR levels distinguish celiac disease-associated iron deficiency anemia from iron deficien...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2005.005
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:The pathogenesis of pre-eclampsia (PE) is incompletely understood. The placenta is considered to play a key role in this disease. Recent research showed that many microRNAs (miRNAs) are expressed in human placenta. Our aim in this study was to determine differential expression of miRNAs in placenta with seve...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2009.228
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Accurate and early diagnosis of tuberculosis (TB) is of major importance in the management and control of TB. Because the conventional bacteriological diagnosis of TB has several limitations, nucleic acid amplification (NAA) tests have emerged as promising alternatives. A potential problem with NAA tests is ...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2010.296
更新日期:2010-10-01 00:00:00
abstract::This review evaluates the role of platelets in bleeding risk among patients with hematological disease and thrombocytopenia. Platelets are pivotal in primary hemostasis, and possess non-hemostatic properties involved in angiogenesis, tissue repair, inflammation and metastatis. Also, platelets safeguard vascular integr...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/cclm-2019-0380
更新日期:2019-11-26 00:00:00
abstract::We discovered a hitherto undescribed insertion/deletion (I/D) polymorphism of 7 base pairs in intron 4 of the HP1 allele and intron 4 and 6 of the HP2 allele. Genotyping was performed in 311 Belgian subjects. The association between serum haptoglobin (Hp) and lipid concentrations and the Hp I/D genotypes was investiga...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2002.081
更新日期:2002-05-01 00:00:00
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journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2011.691
更新日期:2011-09-06 00:00:00
abstract::Early diagnosis of cobalamin deficiency is crucial, owing to the latent nature of this disorder and the resulting possible irreversible neurological damage. A normal serum cobalamin concentration does not reliably rule out a functional cobalamin deficiency and there does not at present seem to be any single diagnostic...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 临床试验,杂志文章
doi:10.1515/CCLM.2004.109
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Adiponectin is a cytokine produced by adipose tissue with insulin sensitising and anti-atherosclerotic effects. Low plasma adiponectin levels are used as a marker of the metabolic syndrome and incipient type 2 diabetes. METHODS:We carried out a series of studies to determine the short- and long-term variabi...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2006.227
更新日期:2006-01-01 00:00:00
abstract:BACKGROUND:Reference laboratories providing reference services recognized by the Joint Committee for Traceability in Laboratory Medicine (JCTLM) must be accredited as calibration laboratories according to ISO 17025 and ISO 15195. These standards require laboratories to establish an uncertainty budget, in which the unce...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/cclm-2014-0579
更新日期:2015-04-01 00:00:00
abstract::Point-of-care testing (POCT) is the fastest growing segment of a US$30 billion worldwide market. "Errors" in the testing process, as well as medical data interpretation and treatment associated with POCT, are recognized as leading to major compromises of patient safety. In today's environment, most testing errors (pre...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/CCLM.2007.164
更新日期:2007-01-01 00:00:00
abstract::Serum concentration of carbohydrate 19-9 antigen (CA 19-9), a sensitive marker of pancreatic cancer and cholangiocarcinoma, increases in a variety of liver diseases due to higher production and release by bile duct cells. Biliary epithelial cells are primarily affected in liver disease associated with cystic fibrosis ...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2003.050
更新日期:2003-03-01 00:00:00
abstract::Inflammatory bowel diseases (IBDs), which comprise the two major clinical subtypes, Crohn's disease and ulcerative colitis, incur high morbidity and potential mortality. The present study reviews data on the pathogenesis and diagnosis of IBDs. The pathogenesis depends on complex interactions between susceptibility gen...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章,评审
doi:10.1515/cclm-2013-0588
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:EGFR mutation is an emerging biomarker for treatment selection in non-small-cell lung cancer (NSCLC) patients. However, optimal mutation detection is hindered by complications associated with the biopsy procedure, tumor heterogeneity and limited sensitivity of test methodology. In this study, we evaluated th...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/cclm-2016-0851
更新日期:2017-10-26 00:00:00
abstract:BACKGROUND:The plasma total and low-density lipoprotein-cholesterol (LDL-C) levels that are used as diagnostic criteria for familial hypercholesterolaemia (FH) probands in the general population are too stringent for use in relatives, given the higher prior probability of a first-degree relative being FH (50% vs. 1/500...
journal_title:Clinical chemistry and laboratory medicine
pub_type: 杂志文章
doi:10.1515/CCLM.2008.135
更新日期:2008-01-01 00:00:00