Abstract：
OBJECTIVES:Therapeutic monitoring of everolimus with chromatographic methods (HPLC) enabled effective immunosuppression while limiting the incidence of drug-related adverse events. A fluorescence polarization immunoassay (FPIA) has been recently developed for the assessment of everolimus levels. The present study was designed to evaluate FPIA performance and to compare it to HPLC. DESIGN AND METHODS:The performance of HPLC and FPIA was initially tested using drug-free whole blood spiked with different amount of everolimus concentrations and, subsequently, by analyzing 113 trough blood samples from heart transplant recipients chronically given everolimus as part of their immunosuppressive regimen. RESULTS:Inaccuracy and imprecision of both methods were below 15%. The correlation between everolimus concentrations and measured FPIA and HPLC was good, with a Pearson coefficient of 0.9118. The FPIA gave a mean overestimation of 24.3% as compared with HPLC. As additional analysis, cross-reactivity ranging from 85.4% to 138.0% was found with sirolimus, an immunosuppressant with a chemical structure close to everolimus. CONCLUSION:The FPIA demonstrated acceptable performance for therapeutic drug monitoring of everolimus, and is a viable alternative to HPLC-based methods.
journal_name
Clin Biochemjournal_title
Clinical biochemistryauthors
Baldelli S,Crippa A,Gabrieli R,Fiocchi R,Perico N,Merlini S,Ottomano C,Cattaneo Ddoi
10.1016/j.clinbiochem.2006.08.013subject
Has Abstractpub_date
2006-12-01 00:00:00pages
1152-9issue
12eissn
0009-9120issn
1873-2933pii
S0009-9120(06)00280-3journal_volume
39pub_type
杂志文章abstract：BACKGROUND:It is unclear if the point-of-care (POC) Clinitest hCG device is subject to high-dose hook interference from physiological concentrations of intact human chorionic gonadotropin (hCG), β-core fragment of hCG (hCGβcf), and hCG free β-subunit (hCGβ) found in urine during pregnancy. We used a simulation model to...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2014.11.004
更新日期：2015-02-01 00:00:00
abstract：OBJECTIVES:The plasma apolipoprotein B (apo B) concentrations have been considered to be a more accurate representation of atherogenic particles and it has been proposed that the formula LDL-C (mmol/L) = 0.41TC - 0.32TG + 1.70apo B - 0.27 is reliable for the estimation of LDL-C (Clin Chem 1997; 43: 808-15). We undertoo...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(00)00162-4
更新日期：2000-10-01 00:00:00
abstract：OBJECTIVES:To verify the role of IL-12 in the pathogenesis of psoriasis and determine its relation to IFNgamma. DESIGN AND METHODS:Skin biopsies from lesional and non-lesional skin of 30 patients and 10 healthy controls were obtained for quantitative PCR examination of IL-12 (P40) and IFNgamma mRNA as well as in situ ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2005.11.008
更新日期：2006-02-01 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：OBJECTIVES:To explore the impact of response to interferon and ribavirin antiviral therapy on human growth hormone (hGH) levels in Egyptian chronic hepatitis C genotype-4 infected patients. DESIGN AND METHODS:We studied eighty Egyptian HCV infected patients visiting outpatient clinics of Tropical Medicine and Hepatolo...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2011.08.1145
更新日期：2012-01-01 00:00:00
abstract：OBJECTIVE:To quantify pepsinogen C (PEPC) and prostaglandin D synthase (PGDS) in breast cyst fluid and examine if these two parameters can be used for breast cyst type classification. DESIGN AND METHODS:We quantified PEPC and PGDS in 92 and 50 breast cyst fluids, respectively, using previously established immunofluoro...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(98)00079-4
更新日期：1999-02-01 00:00:00
abstract：OBJECTIVES:Coenzyme Q(10) (CoQ(10)) is an essential electron carrier in the mitochondrial respiratory chain and a strong antioxidant. Signs associated with skin alteration and mitochondrial dysfunction have been observed in patients with fibromyalgia (FM). The aim of this study was to analyze CoQ(10) levels, mitochondr...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2010.06.013
更新日期：2010-09-01 00:00:00
abstract：OBJECTIVES:To have a reliable diagnostic test, the influence of urine pH on the determination of the total activity of N-acetyl-beta-D-glucosaminidase (NAG) and NAG isoenzyme activities was studied. DESIGN AND METHODS:After ultrafiltration and dialysis of the acidic and alkaline urines, the B, A, and A2 forms of NAG w...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2005.01.002
更新日期：2005-04-01 00:00:00
abstract：OBJECTIVE:We examined the association of plasma apolipoprotein (apoB) B-48, remnant-like particle (RLP)-cholesterol and non-HDL cholesterol concentrations with apoB-100 kinetics in overweight-obese men. METHODS AND RESULTS:Very-low density lipoprotein (VLDL), intermediate-density lipoprotein (IDL) and low-density lipo...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2005.05.009
更新日期：2005-09-01 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:A multisite investigation compared the analytical performance of a point-of-care (POC) HbA1c device with multiple commonly used HbA1c laboratory methods and an NGSP (National Glycohemoglobin Standardization Program) reference method. RESEARCH DESIGN AND METHODS:The Afinion AS100 POC device analyzed HbA1c usi...
journal_title：Clinical biochemistry
pub_type： 杂志文章,多中心研究
doi：10.1016/j.clinbiochem.2018.09.007
更新日期：2018-11-01 00:00:00
abstract：OBJECTIVES:High-resolution melting analysis has been validated for screening several genes of clinical significance. We evaluated whether it would be useful for detecting mutations in the LDL receptor gene (LDLR). DESIGN AND METHODS:We analysed 60 samples heterozygous for different LDLR sequence variants, and compared...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2008.11.015
更新日期：2009-04-01 00:00:00
abstract：OBJECTIVES:Hepatic overproduction of apolipoprotein B (apoB)-containing lipoproteins appears to be a common cause of hyperlipoproteinemia in humans. Patients with overproduction states secrete denser cholesterol ester-rich lipoprotein particles which are highly atherogenic. The formation of apoB particles involves a ve...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/0009-9120(95)00007-v
更新日期：1995-04-01 00:00:00
abstract：OBJECTIVES:We investigated the stability of 36 analytes related to clinical chemistry in a controlled storage study. DESIGN AND METHODS:Blood was collected from 11 subjects and was maintained for 45 min, 2.5 h, 5 h, or 24 h after phlebotomy before centrifugation. RESULTS:Statistically significant changes were observe...
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：BACKGROUND:Reference intervals have traditionally been partitioned by age based on statistical significance and physiological relevance. However, analyte concentration does not change abruptly with age, but rather dynamically. In this study, we establish biochemical marker continuous reference intervals for a Canadian ...
journal_title：Clinical biochemistry
pub_type： 临床试验,杂志文章
doi：10.1016/j.clinbiochem.2019.08.010
更新日期：2019-11-01 00:00:00
abstract：OBJECTIVES:To determine the impact of long distance rowing (160km, nonstop) on standard biological parameters and to study the relation between inflammation, myocardial necrosis, lipid profile, heart rate and energy expenditure. METHODS:Electrolytes, lipid profile, C-reactive protein (CRP), interleukin-6 (IL-6), tumor...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2017.11.018
更新日期：2018-02-01 00:00:00
abstract：BACKGROUND:Numerous etiologies are implicated in the complications of diabetes. A link between diabetes and the predisposition to certain cancers, including colon cancer, has been established during the last decade. However, the relationship between fecal occult blood test (FOBT), a screening method used principally fo...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2016.10.005
更新日期：2017-01-01 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：OBJECTIVES:To study the usefulness of combined cardiac Troponin T (cTnT) and CK-MB mass determinations in risk stratification of acute coronary syndromes. DESIGN AND METHODS:Blood samples for cTnT and CK-MB mass were collected at arrival and 4, 8, and 12-24 later in 301 consecutive patients with recent acute chest pai...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2003.12.003
更新日期：2004-04-01 00:00:00
abstract：INTRODUCTION:The USA hCG Reference Service has been dealing with cases of persistent low levels of hCG and gestational trophoblastic diseases for 10years. Here we present the complete experience. METHODS:Total hCG in serum and urine was measured using the Siemen's Immulite 1000 assay. Hyperglycosylated hCG, nicked hCG...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2010.05.006
更新日期：2010-08-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2018.01.009
更新日期：2018-07-01 00:00:00
abstract：OBJECTIVES:Personalized ranges of liver fibrosis serum biomarkers such as FibroTest or hyaluronic acid could be used for early detection of fibrotic changes in patients with progressive chronic liver disease. Our aim was to generate reliable biological variation estimates for these two biomarkers with confidence interv...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2015.03.020
更新日期：2015-07-01 00:00:00
abstract：:Many clinical laboratories use the Beckman Microzone electrophoretic system (Beckman Instruments Inc. Fullerton, CA 92634) for serum protein separation. Although detailed instruction is supplied in the manufacturer's manual (1) for protein separation, the effect of different sample application positions on the cellulo...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/s0009-9120(78)80019-8
更新日期：1978-12-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2013.05.069
更新日期：2013-10-01 00:00:00
abstract：OBJECTIVE:To evaluate a novel surface plasmon resonance (SPR) system for the direct measurement of tumor marker carbohydrate antigen 15-3 (CA15-3) in human saliva. DESIGN AND METHODS:We measured the presence of the tumor marker carbohydrate antigen 15-3 (CA15-3) in human saliva using 2 different surface plasmon resona...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2012.09.001
更新日期：2012-12-01 00:00:00
abstract：OBJECTIVES:To evaluate the comparative chemopreventive efficacy of green tea polyphenols (Polyphenon-E) and black tea polyphenols (Polyphenon-B) on 7,12-dimethylbenz[a]anthracene (DMBA)-induced hamster buccal pouch (HBP) carcinogenesis. DESIGN AND METHODS:Hamsters were divided into 6 groups. Animals in group 1 served ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2005.06.011
更新日期：2005-10-01 00:00:00
abstract：OBJECTIVES:We checked the efficiency of a new dialysis device adapted to small volumes to remove glycerol from cryopreserved red blood cells. DESIGN AND METHODS:Dialysis was performed on D-Tube96™ Dialyzer Mini device. In a preliminary trial, we measured the residual glycerol before, and 2, 4 and 24 h after dialysis. ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2011.03.023
更新日期：2011-06-01 00:00:00
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journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2008.11.002
更新日期：2009-03-01 00:00:00
abstract：OBJECTIVES:We aimed to compare the individuality (within subject consistency) of plasma and urine betaine and N,N-dimethylglycine. DESIGN AND METHODS:In two separate groups of 8 males (ages 19 to 40), plasma (10) and urine (6) samples were collected either over a single day or over an 8 week period. The individuality ...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2009.02.001
更新日期：2009-05-01 00:00:00
abstract：BACKGROUND:Currently, 20 IU/L is the accepted sensitivity of over-the-counter (OTC) hCG pregnancy tests, and the only sensitivity permitted for point of care (POC) tests. These sensitivity limitations cause significant numbers of false-negative tests, which mislead women and cause them to avoid precautions needed to av...
journal_title：Clinical biochemistry
pub_type： 杂志文章
doi：10.1016/j.clinbiochem.2008.09.107
更新日期：2009-02-01 00:00:00
