Abstract：
OBJECTIVE:Recently cortisol level in hair is supposed to be a good biomarker of chronic stress. We had developed a new method based on HPLC-FLU for identification of cortisol in human hair and measured cortisol distribution of each 1-cm segment along hair shaft. DESIGN AND METHODS:Hair sample was pulverized and incubated in 0.1 M HCl and extracted with ethyl acetate. The extraction was derived with sulfuric acid. The derivative was extracted with SPE C18 column. RESULTS:The detection limit was 1 pg/mg, the intraday and interday precisions were 7.3% and 8.5%, and average recovery was 102.5+/-13.0%. Cortisol concentrations of 32 humans' hair ranged from 3.28 to 24.83 pg/mg. There was a distinct decline in the cortisol of 1-cm segment along hair shaft. CONCLUSIONS:This method showed that the precision was matched with mass spectroscopy. The cortisol in 1-cm hair segment sensitively reflects a retrospective calendar over 1 month.
journal_name
Clin Biochemjournal_title
Clinical biochemistryauthors
Gao W,Xie Q,Jin J,Qiao T,Wang H,Chen L,Deng H,Lu Zdoi
10.1016/j.clinbiochem.2010.01.014subject
Has Abstractpub_date
2010-05-01 00:00:00pages
677-82issue
7-8eissn
0009-9120issn
1873-2933pii
S0009-9120(10)00057-3journal_volume
43pub_type
杂志文章abstract：OBJECTIVE:The purpose of our study was to investigate the serum levels of soluble a-proliferation-inducing ligand (sAPRIL) in patients with colorectal cancer (CRC), benign intestinal disease and healthy volunteers and explore the potential possibility of sAPRIL severing as a CRC biomarker. METHODS:Our investigation wa...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2013.06.008
更新日期：2013-10-01 00:00:00
abstract：OBJECTIVES:Non-invasive prenatal aneuploidy testing (NIPT) by next-generation sequencing of circulating cell-free DNA in maternal plasma relies on chromosomal ratio (chrratio) measurements to detect aneuploid values that depart from euploid ratios. Diagnostic performances are known to depend on the fraction of fetal DN...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2018.06.015
更新日期：2018-09-01 00:00:00
abstract：OBJECTIVES:To assess the association of serum adiponectin and microvascular complications of diabetes in an urban south Indian type 2 diabetic population. DESIGN AND METHODS:Diabetic subjects [n=487] were included from Chennai Urban Rural Epidemiology Study (CURES). Four-field stereo retinal color photography was done...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2014.10.009
更新日期：2015-01-01 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:Prostate specific antigen (PSA) is a widely used and clinically valuable marker for prostate disease. In order to enable the development of new PSA assays and progress the understanding of the biology of PSA we have analyzed PSA in seminal plasma. DESIGN AND METHODS:PSA in seminal plasma from men attending ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2011.11.018
更新日期：2012-03-01 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：INTRODUCTION:Bisalbuminemia is a genetic condition in which an albumin variant is found in serum in addition to normal albumin. METHODS AND MATERIALS:Serum protein electrophoresis using the Sebia HYDRASYS electrophoresis system was performed on an 84 year old male. RESULTS:Serum protein electrophoresis showed a singl...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2011.10.005
更新日期：2012-01-01 00:00:00
abstract：BACKGROUND:The aim of this study was to investigate whether BGD activity is of additional value in the assessment of pulmonary inflammation caused by coal dust exposure. DESIGN AND METHODS:Ex-coalminers were included in this study. Forty-eight healthy male subjects, without a relevant medical history, were used as con...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(99)00070-3
更新日期：1999-11-01 00:00:00
abstract：:With increasing patient volumes and growing demands for rapid turnaround on many clinical tests, there is a demand for high-throughput technologies. High-Throughput Online Solid-Phase Extraction Tandem Mass Spectrometry is an example of one technology that can achieve these desired results and the RapidFire 365 Mass S...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2016.04.012
更新日期：2016-09-01 00:00:00
abstract：BACKGROUND:Laboratory confirmation of alpha-1-antitrypsin (A1AT) deficiency may be achieved by multiple methods. Here, we compare the relative comprehensiveness and efficiency of pathogenic variant (PV) detection of four different protocols utilized at different diagnostic centres in Canada. METHODS:Diagnostic results...
journal_title：Clinical biochemistry
pub_type： 杂志文章,多中心研究
doi：10.1016/j.clinbiochem.2020.05.001
更新日期：2020-07-01 00:00:00
abstract：:Children whose parents had early coronary heart disease were investigated. In order to assess high-risk parameters serum total cholesterol (TC), total triglyceride (TT), high-density lipoprotein cholesterol (HDLC), low-density lipoprotein cholesterol (LDLC), lipid peroxide (LP), prostacyclin (PGI2), thromboxane (TX) l...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(91)90541-l
更新日期：1991-04-01 00:00:00
abstract：BACKGROUND:In standard pre-analytical conditions, an isolation step is required for circulating tumor DNA (ctDNA) analysis. The need for this step remains unclear with the development of ultrasensitive detection technologies such as digital PCR (dPCR). The aim of our study was to evaluate the ctDNA detection by dPCR pl...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2017.06.005
更新日期：2017-11-01 00:00:00
abstract：OBJECTIVE:To establish a plasma calibration curve for the Advantage Blood Glucose System that would permit direct comparison with results provided by clinical laboratories. DESIGN AND METHODS:The initial study involved the comparison between the Advantage whole blood referenced results and the laboratory plasma result...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(97)00074-x
更新日期：1997-08-01 00:00:00
abstract：OBJECTIVES:The aim of the study was to evaluate the concentration of interleukin 12 (IL-12), the activity of phospholipase A(2) (PLA(2)), and platelet-activating factor acetylhydrolase (PAF-AH) in type 1 diabetes (DM1) patients treated with intensive insulin therapy. DESIGN AND METHODS:Studied parameters were measured...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.07.023
更新日期：2009-11-01 00:00:00
abstract：OBJECTIVES:We undertook the present study to investigate the possible relation between total antioxidant capacity (TAC) and tumor marker (TM) values in serum samples of patients with and without gastrointestinal tract and prostate tumors. DESIGN AND METHODS:We measured the TAC using trolox equivalent antioxidant capac...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2011.06.082
更新日期：2011-09-01 00:00:00
abstract：:The influence of age and disease on serum albumin and alpha-1-acid glycoprotein was studied in 126 subjects (69 M, 57 F) presenting with tuberculosis and after recovery. Albumin concentration fell with age in both disease and healthy states, and alpha-1-acid glycoprotein concentration rose with age in the healthy stat...
journal_title：Clinical biochemistry
pub_type： 临床试验,杂志文章
doi：10.1016/0009-9120(94)90032-9
更新日期：1994-08-01 00:00:00
abstract：BACKGROUND:Myocardial infarction (MI) is more likely if the heart damage biomarker cardiac troponin T (cTnT) is elevated in a blood sample from a patient with chest pain. There is no conventional method to estimate the risk of MI at a specific cTnT concentration. The purpose of this study was to evaluate the performanc...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2019.02.003
更新日期：2019-04-01 00:00:00
abstract：OBJECTIVE:We used single-strand conformational polymorphism (SSCP) to screen for mutations at nucleotides 833 and 919 of the cystathionine beta-synthase (CBS) gene in 13 patients with homocystinuria and 11 of their relatives. METHODS:Exon 8 of genomic DNA was selectively amplified by PCR using primers derived from int...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(96)00045-8
更新日期：1996-10-01 00:00:00
abstract：BACKGROUND:Therapeutic drug monitoring (TDM) of the widely prescribed antidepressant fluoxetine (FLU) is recommended in certain situations, such as occurrence of toxicity, inadequate response or suspect of poor adherence. Dried blood spot (DBS) sampling is an increasingly studied alternative for TDM, particularly for o...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2017.10.002
更新日期：2018-02-01 00:00:00
abstract：OBJECTIVES:Human kallikrein 11 gene (KLK11) encodes a secreted serine protease. In view of its diagnostic and prognostic strength in many malignancies, we investigated the mRNA expression levels of KLK11 in laryngeal tissues in order to unveil its clinical usefulness in laryngeal cancer. DESIGN AND METHODS:KLK11 expre...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2012.03.005
更新日期：2012-06-01 00:00:00
abstract：OBJECTIVES:This study was undertaken to evaluate the relationship between serum bilirubin concentrations and the degree of urinary albumin excretion in hypertensive patients. DESIGN AND METHODS:A total of 120 hypertensive subjects were enrolled, in which 80 (67%) with normoalbuminuria (albumin excretion rate [AER] of ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2011.03.137
更新日期：2011-07-01 00:00:00
abstract：OBJECTIVES:Oxidative stress increases postmenopausally, an effect attributed to aging. Increase in body weight generally accompanies menopause. Obesity per se also seems to increase oxidative stress. The question is whether postmenopausal increase in oxidative stress is related to body weight, or is only a function of ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.03.019
更新日期：2009-07-01 00:00:00
abstract：:Retrospective analysis of DNA from paraffin-embedded fixed bone marrow biopsy specimens is possible if preceded by amplification of the DNA sequences of interest by the polymerase chain reaction (PCR). These fixed specimens yield degraded DNA that may not be suitable for direct analysis by conventional digestion and h...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(92)80051-h
更新日期：1992-04-01 00:00:00
abstract：INTRODUCTION:Vitamin B12 deficiency is mostly caused by insufficient gastro-intestinal absorption and in rare conditions by Transcobalamin (TC) deficiency. Unsaturated Transcobalamin (apoTC) can be measured by a binding assay using radiolabeled cobalamin. The Active B12 test analyzes saturated Transcobalamin (holoTC) a...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2017.08.009
更新日期：2017-12-01 00:00:00
abstract：:The serum argino-succinate lyase (ASAL) activity was measured in preoperative and post-operative serum samples, from approximately 500 patients submitted to elective surgery. The results were compared with the determinations of 6 other enzyme activities on the same serum specimens. Serum ASAL elevations correlated hig...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(75)92144-x
更新日期：1975-06-01 00:00:00
abstract：:The measurement of serum 25-hydroxycalciferol (25-OH D) has proved to be a reliable index of the vitamin D nutritional status in man providing the renal 25-hydroxycalciferol-1 alpha-hydroxylase is functional. Since it is known that 25 OHD binds to alpha-globulins for its transport to the kidney, we have developed a co...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(80)90735-3
更新日期：1980-06-01 00:00:00
abstract：OBJECTIVES:To measure serum cholinesterase (SCHE) with an integration strategy. DESIGN AND METHODS:At 54.0 micromol/L butyrylthiolcholine, SCHE initial rates were calculated with 50.0 micromol/L butyrylthiolcholine and maximal rates via an improved integrated method if substrate consumptions within 5.0 min were over 6...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2008.11.016
更新日期：2009-06-01 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
abstract：:Collagen, the most abundant protein of the mammalian body, is specifically degraded by collagenase. Collagenase activity and subsequent collagen degradation are the main aspects of essential biological processes such as bone remodeling, tissue repair and wound healing. Measurement of collagenase activity is of interes...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(05)80002-5
更新日期：1991-12-01 00:00:00
abstract：OBJECTIVES:The aim of this study was to measure soluble receptor for advanced glycation end products (sRAGE) in plasma and synovial fluid of knee osteoarthritis (OA) patients and to determine the correlation between sRAGE levels and disease severity. DESIGN AND METHODS:Thirty-six OA patients and 15 healthy controls we...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2010.07.007
更新日期：2010-09-01 00:00:00
