Abstract:
:It has been proposed that sample storage may have some influence on the parameters of oxidative stress status (OSS) in biological fluids. We measured four important OSS parameters in plasma of 23 healthy subjects and repeated the measurements in the same samples kept at -70 degrees C after different time intervals. Hydroperoxides and total antioxidant capacity (TAC) were determined by ferrous ion oxidation in presence of xylenol orange (FOX) and ferric reducing antioxidant power (FRAP) assays, respectively. Sulfhydryls and carbonyls were measured spectrophotometrically. In fresh samples, OSS seemed to increase with age and relatively good correlations were found among different parameters. The mean values of hydroperoxides (6.08 microM), TAC (0.334 mM Trolox equivalent), and sulfhydryls (0.562 mM) in fresh samples did not show any significant change after 1, 7, and 30 days of storage. Mean carbonyl concentration determined after 1 day storage (2.0 nmol/mg protein) did not change after 30 days. However, extents of changes in hydroperoxide concentrations varied considerably from one individual to another, even after 1 day. A similar phenomenon was observed in TAC, but after 7 days. We suggest measuring hydroperoxides in fresh samples and TAC maximally after 1 week. Sulfhydryls and carbonyls showed more stability and can be measured at least 1 month after sample collection.
journal_name
J Clin Lab Analjournal_title
Journal of clinical laboratory analysisauthors
Firuzi O,Mladenka P,Riccieri V,Spadaro A,Petrucci R,Marrosu G,Saso Ldoi
10.1002/jcla.20122subject
Has Abstractpub_date
2006-01-01 00:00:00pages
139-48issue
4eissn
0887-8013issn
1098-2825journal_volume
20pub_type
杂志文章abstract:BACKGROUND:Delta neutrophil index (DNI) is a new inflammatory marker and the present study aimed to evaluate the predictive value of the DNI for the presence of a perforation in elderly with acute appendicitis. METHODS:This retrospective observational study was conducted on 108 consecutive elderly patients (≥65 years ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22177
更新日期:2018-01-01 00:00:00
abstract::A radioactive polymerase chain reaction (PCR) method has been developed for the relative quantification of the human alpha-2 chain of type I collagen [hu alpha-2(I)] in cells. cDNAs generated by reverse transcription from the total pool of cytoplasmic RNA serve as a template for polymerase chain reaction amplification...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860050407
更新日期:1991-01-01 00:00:00
abstract:BACKGROUND:This study was performed to investigate the epidemiology of enterovirus (EV) infections in children at a single hospital during recent 5 years. This study was preformed from December 2008 to November 2013. METHODS:We subjected 1,067 cerebrospinal fluid (CSF) specimens from 1,053 patients and 678 stool speci...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21830
更新日期:2016-03-01 00:00:00
abstract:BACKGROUND:The performances of the QMS(®) Teicoplanin immunoassay recently developed on Cobas(®) 6000/8000 systems were evaluated and compared to a fluorescence polarization immunoassay (FPIA) [Teicoplanin Innofluor(®) Assay (Thermo Fisher Scientific, Indianapolis, IN)] on FLX analyzer (Abbott Laboratories, Abbott Park...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21567
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:DRI cotinine assay is suitable only for screening for cotinine in urine specimens. We studied the reliability of DRI cotinine semiquantitative values by comparing them with the cotinine concentration obtained with a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method. METHODS:Semiquantitative c...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21988
更新日期:2016-11-01 00:00:00
abstract:BACKGROUND:Automated cell counters have become more and more sophisticated with passing years. The numerical and graphic data both provide useful clues for suspecting a diagnosis especially when the workload is very high. AIM:We present our experience of useful information provided by graphic displays of an automated ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22392
更新日期:2018-06-01 00:00:00
abstract::Rats exposed to constant light develop polycystic ovarian (PCO) disease with persistent estrus, representing an estrogen-dominant condition. Herein, we report that fluctuations seen in the vaginal microflora in cyclic rats were not observed in PCO rats with persistent estrus. The vaginal-cervical mucosa of PCO rats sh...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/(SICI)1098-2825(1996)10:5<233::AID-JCLA1>3
更新日期:1996-01-01 00:00:00
abstract:AIMS:Essential hypertension (EH) is a high prevalence disease facing a public health challenge. People were little known about the genetics of diagnosing the cause of EH. Circular RNAs that have a continuous cycle of covalent closure, without affected by RNA exonuclease, and are more stable and hard to degrade may invo...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22853
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVE:This present study aimed to investigate the correlation of circular RNA SMARCA5 (circ-SMARCA5) with clinicopathological features and overall survival (OS), and the effect of circ-SMARCA5 on cell proliferation and chemotherapy sensitivity to cisplatin/gemcitabine in intrahepatic cholangiocarcinoma (ICC). METH...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23138
更新日期:2020-04-01 00:00:00
abstract::We report nine donations with ABO inconsistency in reverse typing caused by partly or entirely missing antibodies. A and B antigens and antibodies were examined by serological blood typing, and ABO deoxyribonucleic acid (DNA) analyses were performed by sequence-specific priming and sequencing. A B101 allele was demons...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20196
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:Essential trace elements are vital to human health. In this study, our aim was to establish reference intervals of and to evaluate relationships among Ca, Fe, Cu, Mg, and Zn for children. METHODS:We collected blood samples of 3210 children aged 0-14 years from Lu'an, China, and concentrations of the above e...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.22043
更新日期:2017-03-01 00:00:00
abstract::Gross cystic breast disease (GCBD) is the most common benign disease of the human female breast, and patients with GCBD have an increased risk of breast cancer. The aim of this study was to evaluate the distribution inside apocrine cells and in breast cyst fluids aspirated from gross cysts of prostate-specific antigen...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.6
更新日期:2001-01-01 00:00:00
abstract::Using a specific serum anti-soluble T lymphocytes receptor for sheep erythrocytes (E) and SDS-PAGE, we detected radioactive bands of molecular weight 58,000 in immunoprecipitates of supernatant of heated human lymphocytes (SHL), in the supernatant of PHA stimulated lymphocyte cultures (SLC), normal human serum (NHS), ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860050208
更新日期:1991-01-01 00:00:00
abstract::We described an automated enzymatic assay for conjugated bilirubin (Bc) in serum using the Iatro D-Bil kit, with bilirubin oxidase (EC 1.3.3.5 BOD) from Myrothecium species. The specificity of the enzyme in the Iatro D-Bil kit was examined by analyzing unconjugated bilirubin (Bu), delta bilirubin (Bdelta), and Bc with...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/(sici)1098-2825(1999)13:5<219::aid-jcla5>3
更新日期:1999-01-01 00:00:00
abstract::Novel molecular approaches have recently become available allowing improved major histocompatibility complex (MHC) matching of potential allogeneic bone marrow donors and recipients. Current cellular and serological assays are hindered by aberrant cell populations and limited reagents which only detect an individuals'...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860060515
更新日期:1992-01-01 00:00:00
abstract::Ninety semen samples from male patients were studied. They were classified into 4 different groups; normospermic fertile, oligospermia, asthenospermia, and oligoasthenospermia. In addition to routine semen analysis, the hypo-osmotic swelling test was done for all these samples, measuring total protein and specific gra...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860070410
更新日期:1993-01-01 00:00:00
abstract::Recently, Siemens Diagnostics released a new calcium assay (CA_2) based on complex formation of calcium with Arsenazo III dye for use on the three automated, random access ADVIA Chemistry analyzers (1650, 2400, and 1200). We evaluated this method for analytical performance as well as potential interference from gadoli...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20353
更新日期:2009-01-01 00:00:00
abstract::Hematological parameters are affected by different factors that include age, sex, smoking, ethnicity, and environmental altitude. It has been justified that each population must establish its own normal reference intervals to be used in clinical assessments and interpretations. Hematological reference intervals for ad...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20265
更新日期:2008-01-01 00:00:00
abstract::The levels of several soluble cytokine receptors in body fluids of healthy individuals change with age. Clinical application of the measurement of the serum soluble interleukin-1 receptor type I (sIL-1RI) level depends critically on the samples used as the controls. At present, there is no information regarding the le...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.20315
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:The aim of this study was to investigate the differential plasma levels of lipocalin 2 (LCN2) and its complex with MMP-9 (where MMP is matrix metalloproteinase) before and after antibiotic treatment in hospitalized adult patients with community-acquired pneumonia (CAP). METHOD:Plasma LCN2 and LCN2/MMP-9 com...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21588
更新日期:2013-07-01 00:00:00
abstract::An automated measurement of total and free hydroxyproline in serum or urine is presented that uses flow injection analysis. After exclusion of nonspecific substances, hydroxyproline was oxidized by chloramine-T and L-cysteine with Ehrlich's reagent. The linearity obtained was from 3.8 mumole/L to 1.22 mmole/L with goo...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860080504
更新日期:1994-01-01 00:00:00
abstract:BACKGROUND:Renal failure is a severe complication of symptomatic myeloma, related to higher mortality. Recovery from dialysis dependence can lead to enormous survival benefits. We investigated the effect factors for probability of dialysis independence. METHODS:Retrospective data on 45 newly diagnosed MM (NDMM) patien...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.23057
更新日期:2020-02-01 00:00:00
abstract:BACKGROUND:We evaluated the new body fluid module on Sysmex UF1000-i (UF1000i-BF) for analysis of white blood cell (WBC) and red blood cell (RBC) in cerebrospinal fluid (CSF). METHODS:WBC and RBC counting were compared between UF1000i-BF and Fuchs-Rosenthal counting chamber in 67 CSF samples. This study also included ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21866
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:A convenient biosensor for real-time measurement of biomarkers for in-field psychophysiological stress research and military operations is desirable. We evaluated a hand-held device for measuring salivary amylase as a stress marker in medical technicians undergoing combat casualty care training using two dif...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21840
更新日期:2016-05-01 00:00:00
abstract::Clinicians recognize and compensate for limitations in estimating the glomerular filtration rate (GFR) using serum creatinine (sCr) measurements by the use of timed collections and mathematical manipulations of sCr. These limitations stem from that fact that sCr is affected by nonrenal influences, including muscle mas...
journal_title:Journal of clinical laboratory analysis
pub_type: 评论,杂志文章,评审
doi:10.1002/jcla.10098
更新日期:2004-01-01 00:00:00
abstract::In order to establish a rapid staining method sensitive enough to stain the protein bands on cellulose acetate membrane and suitable for the analysis of urinary proteins in healthy subjects, we conducted a detailed examination of Kovarik's method designed for the analysis of proteins in cerebrospinal fluid in detail. ...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/(SICI)1098-2825(1996)10:6<403::AID-JCLA15>
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:Non-acrocentric satellited chromosomes mostly result from familial balanced insertions or translocations with p12 or p13 of any acrocentric. Although all non-acrocentrics have been involved, only 12 instances of chromosome 6 involvement are known. CASE PRESENTATION:A female infant exhibited clinical feature...
journal_title:Journal of clinical laboratory analysis
pub_type:
doi:10.1002/jcla.23355
更新日期:2020-08-01 00:00:00
abstract:BACKGROUND:The human epididymis protein 4 (HE4) may have high specificity in the detection of malignant diseases, making the development of an immunoassay for HE4 essential. METHODS:In our study, a fusion gene was constructed encoded with the HE4 protein. This protein was then produced in the bacterial cells (Escheric...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.21906
更新日期:2016-09-01 00:00:00
abstract::The experimental and clinical effectiveness of nasal salmon calcitonin (SCT) for treatment of osteoporosis in humans has been well established, but none is known yet about the pharmacokinetic property in relation to therapeutic efficacy, especially when used in a therapeutic dose range. This preclinical study was desi...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/(sici)1098-2825(1997)11:3<129::aid-jcla2>3
更新日期:1997-01-01 00:00:00
abstract::Polyfunctional hydrophilic microspheres of 125-nm diameter can be produced by copolymerization of acrylic monomers. Purified c-reactive protein (CRP) was covalently bound to these new micropheres, and the conjugate obtained was used as reagent in a microparticle-enhanced nephelometric immunoassay for human CRP. This a...
journal_title:Journal of clinical laboratory analysis
pub_type: 杂志文章
doi:10.1002/jcla.1860060106
更新日期:1992-01-01 00:00:00