Abstract:
:The biosynthesis of prostate specific antigen (PSA) was studied in human epidermoid carcinoma, (KB) cells and in normal human embryonic lung (WI-38)cells. The prostate carcinoma cell line, PC-35F12 was used as a control. PSA specific antibodies were used to precipitate the immunologically reactive peptides from cell extracts and conditioned media. The immunoprecipitates were analyzed by electrophoresis followed by fluorgraphy. Human PSA is initially synthesized as 32-kDa secretory glycopeptide containing one N-linked oligosaccharide and then processed to a 34-kDa secretory glycoprotein in KB cells. PSA is also expressed in normal human embryonic lung cells, WI-38. These results confirm that PSA expression is not prostate specific, but is also found in some nonprostatic cells. From these results, we conclude that PSA may play an important physiologic role in several tissues.
journal_name
Clin Biochemjournal_title
Clinical biochemistryauthors
Waheed A,Van Etten RLdoi
10.1016/s0009-9120(01)00280-6subject
Has Abstractpub_date
2001-11-01 00:00:00pages
617-21issue
8eissn
0009-9120issn
1873-2933pii
S0009912001002806journal_volume
34pub_type
杂志文章abstract:OBJECTIVE:We developed assays for measurement of urinary betaLH and betaFSH under collection and storage conditions typical of non-clinical research settings. DESIGN AND METHODS:IEMAs for free betaLH and total betaFSH were validated by standard methods. Stability of urinary betaLH and betaFSH was tested across freeze-...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2006.08.009
更新日期:2006-11-01 00:00:00
abstract:OBJECTIVES:To assess the medical applicability of CpG methylation as molecular markers for cancer diagnosis, we established a new system to determine DNA methylation based on TaqMan PCR combined with a methyl-binding-domain polypeptide 2. DESIGN AND METHODS:We evaluated the diagnostic applicability of this approach by...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2009.03.017
更新日期:2009-07-01 00:00:00
abstract:OBJECTIVES:Receptor for advanced glycation end products (RAGE) plays a role in inflammatory reactions. Soluble RAGE (sRAGE) level is elevated in patients with acute respiratory distress syndrome (ARDS). However, which clinical parameters and inflammatory biomarkers including sRAGE are associated with death in ARDS pati...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2010.12.014
更新日期:2011-06-01 00:00:00
abstract:OBJECTIVES:Renal dysfunction has been reported in normoalbuminuric patients, demonstrating the necessity to improve the diagnostic and prognostic tools for diabetic kidney disease (DKD) investigation. Therefore, the aim of this study was to investigate whether the urinary levels of neutrophil gelatinase-associated lipo...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2015.10.016
更新日期:2016-02-01 00:00:00
abstract:OBJECTIVES:We have previously identified three minor immunophilins of molecular weights 37 kDa, 14 kDa, and 5-8 kDa capable of binding tacrolimus and sirolimus. DESIGN AND METHODS:When tested against pure preparations of five sirolimus metabolites, the 14 kDa protein had almost no cross-reactivity, the 37 kDa protein ...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/s0009-9120(99)00080-6
更新日期:2000-02-01 00:00:00
abstract:BACKGROUND:The p53 gene is an established tumor suppressor and an inducer of apoptosis. We here attempt to determine whether the putative anticarcinogenic properties attributed to red wine and its polyphenolic constituents depend, at least in part, upon their ability to modulate p53 expression in cancer cells. METHODS...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/s0009-9120(01)00246-6
更新日期:2001-07-01 00:00:00
abstract::An early diagnosis is crucial for effective triage and management of patients with suspected acute myocardial infarction (AMI). Although troponin testing is the cornerstone of diagnosis, the sensitivity of this biomarker is still suboptimal at patient admission. The heart-type fatty acid binding protein (H-FABP) is an...
journal_title:Clinical biochemistry
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.clinbiochem.2012.10.016
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVES:An increase in oxidative stress may contribute to the development of oxidative protein damage in the aging rat skeletal muscle. Our aim was to reveal protein carbonyl (PCO), advanced oxidation protein products (AOPP), a novel marker of oxidative stress, and protein thiol (P-SH) levels as markers of protein o...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/s0009-9120(02)00407-1
更新日期:2003-02-01 00:00:00
abstract:BACKGROUND:In several studies, it was shown that there was a marked decrease in serum levels of HDL-C during infection and inflammation in general. In particular, a decrease in the level of serum HDL-C was also shown in pneumonia. Correlations between inflammatory markers such as acute phase proteins, cytokines and ser...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2006.01.015
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVES:To examine whether the proportions of blood leukocyte subsets are altered in COPD, and to assess the disturbances in signalling pathways in the leukocytes of COPD patients, with respect to smoking history. DESIGN AND METHODS:The study was performed at the Faculty of Pharmacy and Biochemistry and University ...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2007.12.013
更新日期:2008-04-01 00:00:00
abstract:OBJECTIVES:Molecular screening plays a major role in prognostic categorization and subsequent definition of treatment strategies for acute myeloid leukemia. The possibility of using IDH1/2 mutations as a marker for the monitoring of minimal residual disease (MRD) is still under investigation and remains unclear. METHO...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2018.08.012
更新日期:2018-11-01 00:00:00
abstract:OBJECTIVE:To identify independent predictors of serum butyrylcholinesterase (BuChE) activity and examine its relationship with the metabolic syndrome. DESIGN AND METHODS:Serum BuChE activity was measured and metabolic syndrome risk factors were assessed in 1097 healthy subjects recruited from the Newfoundland adult po...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2005.04.008
更新日期:2005-09-01 00:00:00
abstract:BACKGROUND:Gliomas are tumors of the central nervous system derived from glial cells. They show cellular heterogeneity and lack specific diagnostic markers. Although a possible role for the eicosanoid cascade has been suggested in glioma tumorigenesis, the relationship between enzymes and receptors implicated in arachi...
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::Immunoglobulin levels are elevated in the acquired immune deficiency syndrome (AIDS) and one class, IgA, has been suggested as a marker of disease progression. IgA is composed of two subclasses, IgA1 and IgA2; circulating IgA1 is roughly 85% of the total in healthy individuals. We have attempted to determine if the su...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/0009-9120(91)80020-4
更新日期:1991-06-01 00:00:00
abstract:OBJECTIVE:To confirm that the naproxen metabolite O-desmethylnaproxen interferes with the Jendrassik and Grof method for total bilirubin and was a possible cause of spurious hyperbilirubinemia in a case of naproxen overdose. DESIGN AND METHODS:Plasma was spiked with naproxen or O-desmethylnaproxen before total and dir...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2008.09.119
更新日期:2009-01-01 00:00:00
abstract::57Co-cyanocobalamin is substituted for iodine labeled antigen in three commercially available solid phase radioimmunoassay kits to evaluate the extent of non-specific binding by determination of the supernatant and residual fraction of unbound ligand and thus obtain a value for corrected binding throughout the range o...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/s0009-9120(78)90070-x
更新日期:1978-06-01 00:00:00
abstract:OBJECTIVE:A survey of operators of a bedside blood glucose monitoring (BGM) program at a tertiary health care institution was performed to identify potential outcome indicators for our quality assurance program. DESIGN AND METHODS:170 surveys were randomly distributed to each nursing unit. The survey consisted of 20 q...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/s0009-9120(98)00020-4
更新日期:1998-06-01 00:00:00
abstract:OBJECTIVES:To evaluate the analytical performance of the testosterone assay performed on the Bayer immuno 1 system from Bayer Corporation. DESIGN AND METHODS:The precision was measured using three Bayer TESTpoint Ligand controls, three Medical Decision Pools and the Bayer SETpoint Testosterone calibrators. The lineari...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/s0009-9120(97)00140-9
更新日期:1998-02-01 00:00:00
abstract::Urinary amylase was estimated by chromogenic (amylochrome Roche) as well as enzymatic methods (SKI and Beckman: substrate starch and substrate maltotetraose respectively). Random and timed urines (24 hour collections) were analysed. Clearances of amylase gave different results dependent upon the amylase-test used and ...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/s0009-9120(79)80125-3
更新日期:1979-12-01 00:00:00
abstract::Suspected myocardial infarction (MI) is a common reason for emergency hospital attendance and admission. Cardiac biomarker measurement is an essential element of diagnostic assessment of suspected MI. Although the cost of a routinely available biomarker may be small, the large patient population and consequences in te...
journal_title:Clinical biochemistry
pub_type: 杂志文章,评审
doi:10.1016/j.clinbiochem.2014.08.012
更新日期:2015-03-01 00:00:00
abstract:OBJECTIVE:Develop a simple LC-MS-MS method for determination of 25-hydroxymetabolites of vitamin D2 and D3 in serum. DESIGN AND METHODS:0.1 mL serum was mixed with 0.3 mL deproteinizing mixture containing two deuterated internal standards. Two LC-MS-MS systems were used: Waters Premier with an ESI source and a Hypersi...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2011.08.1134
更新日期:2011-11-01 00:00:00
abstract:OBJECTIVES:The International Federation of Clinical Chemistry (IFCC) initiated a pilot study, with cortisol as an example, that aims to implement the concept of standardization of hapten immunoprocedures on the basis of metrological traceability. In fact, this standardization concept comes down to correct calibration o...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/s0009-9120(98)00037-x
更新日期:1998-08-01 00:00:00
abstract:OBJECTIVE:To establish a ELISA assay to measure release of type 1-phospholipase A2 propeptide from activated granulocytes. Human type 1-prophospholipase A2 (1-proPLA2) is biosynthesized and stored as inactive zymogen. Activation involves tryptic-like cleavage at the N-terminus, with equimolar release of the heptapeptid...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/0009-9120(94)00068-7
更新日期:1995-02-01 00:00:00
abstract::A retrospective study has been undertaken to assess the diagnostic value of plasma estriol (E3) determinations, as compared with determinations of other biochemical parameters, in predicting the outcome of pregnancy. The normal levels of plasma unconjugated and total E3 were determined on weekly samples obtained durin...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/s0009-9120(81)90211-3
更新日期:1981-06-01 00:00:00
abstract:BACKGROUND:Red blood cell distribution width (RDW) is a predictor of mortality in critically ill patients. Our objective was to investigate the association between the RDW at ICU discharge and the risk of ICU readmission or unexpected death in the ward. METHODS:A secondary analysis of prospectively collected data stud...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2018.03.010
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVES:The relative proportion in percentage of the isoenzyme A of beta-hexosaminidase (Hex) is the single discriminatory function most frequently used for the biochemical screening of heterozygote Tay-Sachs disease carriers. It has been suggested that the assay of the Hex isoenzymes in homogeneous cell preparation...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2005.05.016
更新日期:2005-10-01 00:00:00
abstract:OBJECTIVES:This study investigates how some of human physiological parameters, in particular sex and daytime, can contribute to the normal variation in blood gene expression. DESIGN AND METHODS:The expressions of two genes: SOD1 (Cu/Zn) and SOD2 (Mn) in white blood cells of 19 healthy individuals (10 men and 9 women) ...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2008.08.064
更新日期:2008-11-01 00:00:00
abstract:OBJECTIVES:Association between vitamin D deficiency and excess of vitamin A as a potential risk factor of osteoporosis and fracture has been evaluated. DESIGN AND METHODS:232 healthy postmenopausal women were studied. Serum parameters were analyzed by standard methods and fat-soluble vitamins by an own HPLC method. QU...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2010.06.001
更新日期:2010-09-01 00:00:00
abstract:OBJECTIVES:To analyze a healthy Slovenian population for the frequency of the classical galactosemia allele K285N. DESIGN AND METHODS:DNA was analyzed by means of polymerase chain reaction and restriction fragment length polymorphism. RESULTS:The allele frequency of the K285N mutation in Slovenian population is 0.29%...
journal_title:Clinical biochemistry
pub_type: 杂志文章
doi:10.1016/j.clinbiochem.2006.11.004
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND AND OBJECTIVE:A large number of studies have examined the association between the Membrane-spanning 4 domains, superfamily A, number 2 (MS4A2) gene C-109T (rs1441586) or E237G (rs569108) variants and asthma risk. However, the results are inconsistent and inconclusive. To derive a more precise estimation, a m...
journal_title:Clinical biochemistry
pub_type: 杂志文章,meta分析
doi:10.1016/j.clinbiochem.2014.01.022
更新日期:2014-05-01 00:00:00