Abstract：
OBJECTIVES:Sphingosine 1-phosphate (S1P) is carried in plasma by the HDL particles and albumin. It mediates several protective functions of HDL. Because of its barrier-enhancing effect, it has attracted attention in diseases associated with endothelial dysfunction. We examined the impact of circulating levels of S1P in diabetic nephropathy together with apoprotein M, a S1P-binding protein in HDL. Plasma levels of dimethylarginines were evaluated in this context. DESIGN AND METHODS:Patients with type 2 diabetes mellitus were divided into three groups according to daily albumin excretion: normoalbuminuria, microalbuminuria and macroalbuminuria (n=30 in each). In addition to routine analysis, S1P and apo M in plasma were measured using the enzyme-linked immunosorbent assays. Asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA) and l-arginine were determined by HPLC. Tukey's or Mann-Whitney U-test was used for the statistics. RESULTS:Plasma S1P levels showed a significant decline in parallel to kidney dysfunction. The highest significance was detected in the macroalbuminuric group. Although a significant increase in plasma SDMA in albuminuric groups was observed, apo M, l-arginine and ADMA levels were similar between the groups. CONCLUSION:Low plasma levels of S1P seemed to be associated with diabetic nephropathy. The main reason for the decreased S1P levels in our patients seems to be severe urinary albumin loss due to nephropathy. Low levels of S1P in patients with nephropathy may adversely affect the endothelial integrity and barrier function, thus causing a vicious circle.
journal_name
Clin Biochemjournal_title
Clinical biochemistryauthors
Bekpinar S,Yenidunya G,Gurdol F,Unlucerci Y,Aycan-Ustyol E,Dinccag Ndoi
10.1016/j.clinbiochem.2015.08.001subject
Has Abstractpub_date
2015-12-01 00:00:00pages
1264-7issue
18eissn
0009-9120issn
1873-2933pii
S0009-9120(15)00381-1journal_volume
48pub_type
杂志文章abstract：:The recently emerged severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) spread all over the world rapidly and caused a global pandemic. To prevent the virus from spreading to more individuals, it is of great importance to identify and isolate infected individuals through testing. Reverse transcription-quanti...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2020.12.011
更新日期：2021-01-09 00:00:00
abstract：OBJECTIVES:To ascertain whether or not the change in blood collection tubes for plasma glucose from fluoride/oxalate to citrate/fluoride/EDTA has had an effect upon the glucose results. METHODS:Plasma glucose results from fasting patients from 2007 to 2012 were extracted from the laboratory information system. The dat...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2014.01.011
更新日期：2014-05-01 00:00:00
abstract：:The purpose of this report is to evaluate whether a new, simple, non-invasive method for chymotrypsin measurement in stools is useful for the diagnosis of exocrine pancreatic insufficiency in cystic fibrosis (CF). A hundred children aged from 2 months to 12 years were tested: 50 children had been admitted for chronic ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(85)80046-1
更新日期：1985-08-01 00:00:00
abstract：OBJECTIVES:To evaluate the association between plasma lipids and insulin and variation in the genes for apolipoproteins (APO) E (CfoI), B (insertion/deletion), C1 (HpaI), and C3 (C-482T, C3238G) in a population-based Czech Slavonic study. DESIGN AND METHODS:In 131 men and 154 women, polymorphisms were investigated usi...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(01)00184-9
更新日期：2001-03-01 00:00:00
abstract：:Devices constructed for potential use as invasive bioprobes incorporate a selective receiving site for molecular or ionic recognition, and a transducer which is capable of translating a perturbation of physical chemistry of the determinant-site reaction (interaction) into a usable signal. Four types are envisioned--im...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/s0009-9120(86)80037-6
更新日期：1986-10-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2005.04.010
更新日期：2005-07-01 00:00:00
abstract：:A non-isotopic heterogeneous non-competitive immunoassay for carcinoembryonic antigen is described. CEA present in serum binds simultaneously to two monoclonal antibodies specific for different antigenic determinants of CEA. One antibody is immobilized on a solid-phase (microtiter well) and the other is biotinylated. ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(89)80094-3
更新日期：1989-12-01 00:00:00
abstract：:Autosomal dominant olivopontocerebellar degeneration was evaluated in a family numbering 414 living members. Urine samples were obtained from 5 affected and 5 unaffected not at-risk family members after 4 days on a synthetic diet. 159 urine vapor constituents were measured by gas-liquid and ion-exchange chromatography...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(75)93752-2
更新日期：1975-12-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(82)96520-1
更新日期：1982-04-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/0009-9120(91)90357-k
更新日期：1991-02-01 00:00:00
abstract：:Three commercially available assays (an enzyme-linked immunosorbent assay ELISA, an immunoradiometric assay, IRMA, and a nephelometric assay) for the determination of lipoprotein(a) [Lp(a)] were compared with respect to the dependency of these assays on the various apolipoprotein(a) [apo(a)] isoforms. Although there w...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(94)00052-w
更新日期：1994-12-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(77)93190-3
更新日期：1977-12-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2005.09.014
更新日期：2006-01-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.02.010
更新日期：2009-06-01 00:00:00
abstract：OBJECTIVES:It has recently been suggested that when adjusting doses of cyclosporine (CsA), determining its concentration in blood samples taken 2 h postdose (C(2)) is more clinically beneficial than using the predose concentration (C(0)). We determined C(0) and C(2) concentrations of CsA and their metabolites in sample...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(00)00147-8
更新日期：2000-07-01 00:00:00
abstract：:1. Six subjects were investigated during the luteal phase of the menstrual cycle to determine whether the ovarian steroids, estrogen and progesterone were released in an episodic manner. 2. Analysis of plasma obtained every 20 min. during a normal working day provided no evidence for pulsatile release of either steroi...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(75)92479-0
更新日期：1975-08-01 00:00:00
abstract：:We assessed the diagnostic value of four commercially available methods for determining pancreatic lipase (LPS) in serum (the turbidimetric procedure from Boehringer, two enzymatic approaches from Kodak and Poli, and an immunochemical assay) in a population of 46 hospitalized patients with acute abdominal pain. In 31 ...
journal_title：Clinical biochemistry
pub_type： 临床试验,杂志文章
doi：10.1016/s0009-9120(05)80009-8
更新日期：1991-12-01 00:00:00
abstract：OBJECTIVE:Heat-mediated ELISA (HELISA) technique has been reported to shorten ELISA timings and has major clinical implications in diagnostic field [Bora U, Kannan K, Nahar P. Heat mediated enzyme linked immunosorbent assay. J Immunol Methods 2004; 293: 43-50]. Objective of this study is to find out whether anti-MBL au...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2007.09.016
更新日期：2008-01-01 00:00:00
abstract：OBJECTIVES:NGAL (Neutrophil Gelatinase-Associated Lipocalin) has emerged as a new biomarker for the identification of acute kidney injury. Reliable clinical evaluations require a simple, robust test method for NGAL, and knowledge of specimen handling and specimen stability characteristics. We evaluated the performance ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.12.008
更新日期：2010-04-01 00:00:00
abstract：OBJECTIVES:The aim of the present study was to establish the range of chitotriosidase (CT) activity in normal individuals, patients with Gaucher disease (GD) and Niemann-Pick disease (NPD), types A or B. The kinetics of CT in these three groups was also investigated. DESIGN AND METHODS:CT activity, as well as Km, Vmax...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2004.06.008
更新日期：2004-10-01 00:00:00
abstract：BACKGROUND:High levels of intact and cleaved forms of the urokinase-type plasminogen activator receptor (uPAR) in both tissue and blood are associated with poor survival in several cancer diseases. The prognostic significance of uPAR in cholangiocarcinoma is unknown. The aims of this study were to determine if pre-trea...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2014.01.030
更新日期：2014-05-01 00:00:00
abstract：:In order to provide quality control serum in the hypoglycemic range, pooled human serum was treated with yeast. Yeast destroyed about 50% of the serum glucose in about 4 1/2 hrs. The yeast-treated serum remained suitable for quality control of the most commonly analyzed clinical chemistry constituents which showed onl...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(80)90562-7
更新日期：1980-02-01 00:00:00
abstract：OBJECTIVES:Humoral immune response to SARS-CoV-2 infection has been reported in several patient cohorts with results that vary by method and population studied due to the lack of reliable commercial assays available as the pandemic initially spread. We sought to clinically assess commercial prototype SARS-CoV-2 IgG and...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2020.08.008
更新日期：2020-12-01 00:00:00
abstract：:1,5-anhydroglucitol (AG) is a nonmetabolizable glucose analogue found in plasma due to ingestion. The normal steady-state concentration can be dramatically decreased by inhibition of tubular reabsorption during periods of hyperglycemia. For this reason, monitoring of AG has been plausibly advocated for detection of pe...
journal_title：Clinical biochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.clinbiochem.2008.08.086
更新日期：2009-02-01 00:00:00
abstract：OBJECTIVE:The aim of our research is to determine whether the time of blood sampling and fasting of patients have an impact on TSH values. DESIGN AND METHODS:A total of 198 participants were enrolled in this study and classified into five groups: A--the first sample collection for TSH measurement was taken between 7:0...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2015.08.020
更新日期：2015-12-01 00:00:00
abstract：BACKGROUND:Cystinosis is a rare autosomal recessive disorder characterized by an accumulation of intralysosomal cystine due to a defect in cystine transport across the lysosomal membrane. This disorder can be treated specifically using high doses of cysteamine. Accurate measurement of intracellular cystine content is n...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2007.02.005
更新日期：2007-06-01 00:00:00
abstract：OBJECTIVE:We used single-strand conformational polymorphism (SSCP). To screen for mutations/polymorphisms in exon 4 of the apolipoprotein C III in 45 patients with hypertriglyceridemia and 46 control individuals, single-strand conformational polymorphism was investigated using restriction endonuclease and amplification...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(94)00083-8
更新日期：1995-06-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2010.03.017
更新日期：2010-07-01 00:00:00
abstract：OBJECTIVES:To develop an accurate assay and establish the normal reference intervals for serum cortisol, corticosterone, 11-deoxycortisol, androstenedione, 21-hydroxyprogesterone, testosterone, 17-hydroxyprogesterone, and progesterone. These steroids are commonly used as biomarkers for the diagnosis and monitoring of e...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2013.01.002
更新日期：2013-05-01 00:00:00
abstract：UNLABELLED:The study of factors potentially associated with sleep bruxism (SB) may contribute to a better understanding of its nature and etiology. OBJECTIVES:In this way, this cross-sectional study aimed to evaluate the association between SB and salivary cortisol levels, heart rate, and other parafunctional habits. ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2012.03.013
更新日期：2012-06-01 00:00:00
