Analysis of midazolam and metabolites in plasma by high-performance liquid chromatography: probe of CYP3A.

abstract：:An analysis of pH-induced changes of drug binding may contribute to the understanding of the mechanisms involved and the clinical relevance. A literature search was performed, and acceptance criteria set up, to select reported data for quantitative evaluation. The relationship between percentage of unbound drug, fu, a...

journal_title：Therapeutic drug monitoring

authors： Hinderling PH,Hartmann D

更新日期：2005-02-01 00:00:00

abstract：:Phenytoin binding to serum proteins and factors influencing protein binding were investigated in 38 critically ill trauma patients. In 24% of these patients, the free fraction of phenytoin was < or = 10%, whereas in 76%, the free phenytoin fraction was increased > 10%--up to 24%. Nonantiepileptic comedication, sex, or...

journal_title：Therapeutic drug monitoring

authors： Zielmann S,Mielck F,Kahl R,Kazmaier S,Sydow M,Kolk J,Burchardi H

更新日期：1994-04-01 00:00:00

abstract：:Twenty-four epileptic women were followed-up during late pregnancy, labor, and early puerperium in order to detect possible alterations in serum protein binding of antiepileptic drugs (AEDs). The total and free concentrations of carbamazepine (CBZ), phenytoin (PHT), and valproate (VPA) in maternal serum were measured....

journal_title：Therapeutic drug monitoring

authors： Bardy AH,Hiilesmaa VK,Teramo K,Neuvonen PJ

更新日期：1990-01-01 00:00:00

abstract：:Amprenavir is an HIV-1 protease inhibitor with high protein binding (90%) in human plasma. This study was designed to develop an assay to measure the concentration of unbound amprenavir, to study variation with time in patients, and to investigate whether ritonavir and lopinavir, other protease inhibitors that could b...

journal_title：Therapeutic drug monitoring

authors： Barrail A,Le Tiec C,Paci-Bonaventure S,Furlan V,Vincent I,Taburet AM

更新日期：2006-02-01 00:00:00

abstract：:Three automated immunoassays for digoxin in serum were evaluated--Abbott TDxII, Baxter Stratus, and Behring OPUS. The accuracy and precision of the assays were assessed by weighed-in controls and an external quality control program. Coefficients of variation of all methods in serum were < or = 10% at weighed-in concen...

journal_title：Therapeutic drug monitoring

authors： Dodds HM,Norris RL,Johnson AG,Pond SM

更新日期：1995-02-01 00:00:00

abstract：:This investigation was designed to compare three assay techniques, the traditional bioassay (agar diffusion), and two more recent techniques, high-performance liquid chromatography (HPLC) and fluorescence polarization immunoassay (FPIA), for the determination of vancomycin concentrations in serum. One hundred clinical...

journal_title：Therapeutic drug monitoring

authors： Ristuccia PA,Ristuccia AM,Bidanset JH,Cunha BA

更新日期：1984-01-01 00:00:00

abstract：:Studies examining associations between antidepressant response and plasma levels of bupropion and its metabolites have yielded contradictory findings. There have been no such studies in youth. This study explored such associations in 8 boys and 8 girls, age 11 to 17 years, all prescribed bupropion sustained release (S...

journal_title：Therapeutic drug monitoring

authors： Daviss WB,Perel JM,Brent DA,Axelson DA,Rudolph GR,Gilchrist R,Nuss S,Birmaher B

更新日期：2006-04-01 00:00:00

abstract：BACKGROUND:Raltegravir is the first human immunodeficiency virus-1 (HIV-1) integrase inhibitor used in treatment-experienced patients who have evidence of viral replication and HIV-1 strains resistance to multiple antiretroviral regimens. Etravirine is a novel NNRTI, active against HIV-1 strains harboring multiple NNRT...

journal_title：Therapeutic drug monitoring

authors： Quaranta S,Woloch C,Paccou A,Giocanti M,Solas C,Lacarelle B

更新日期：2009-12-01 00:00:00

abstract：:An isocratic high-performance liquid chromatography method with amperometric detection for the assay of plasma salbutamol is described. The plasma extract is injected into the chromatographic system via a loop column. This insures the purification of the injected extracts and allows a simple and rapid liquid-solid ext...

journal_title：Therapeutic drug monitoring

authors： Tamisier-Karolak L,Delhotal-Landes B,Jolliet-Riant P,Milliez J,Jannet D,Barre J,Flouvat B

更新日期：1992-06-01 00:00:00

abstract：:The authors describe a reverse-phase high-performance liquid chromatography-electrospray-tandem mass spectrometry method for the measurement of nicotine in human plasma. Samples (500 microL) with added deuterium-labeled d3-nicotine as an internal standard (IS) were treated with a 2-step process of ether extraction (6 ...

journal_title：Therapeutic drug monitoring

authors： Taylor PJ,Forrest KK,Landsberg PG,Mitchell C,Pillans PI

更新日期：2004-10-01 00:00:00

abstract：:The authors describe a rapid, useful, specific, and very sensitive high-performance liquid chromatographic assay for the determination of fluvastatin (FV) level using atorvastatin as the internal standard (IS). After a simple deproteinization of 1.0 mL of plasma with acetonitrile, the drug and IS were extracted with t...

journal_title：Therapeutic drug monitoring

authors： Al-Rawithi S,Hussein RF,Alzahrani A

更新日期：2003-02-01 00:00:00

abstract：:The efficacy of low-dose, ritonavir-boosted saquinavir (SQV/rtv) once daily plus 2 nucleoside retrotranscriptase inhibitors (NRTIs) in pregnant human immunodeficiency virus (HIV)-1-infected women was prospectively evaluated, ensuring a SQV minimum concentration (Cmin) >/=100 ng/mL with a therapeutic drug monitoring st...

journal_title：Therapeutic drug monitoring

authors： Lopez-Cortes LF,Ruiz-Valderas R,Rivero A,Camacho A,Marquez-Solero M,Santos J,García-Lazaro M,Viciana P,Rodriguez-Baños J,Ocampo A

更新日期：2007-04-01 00:00:00

abstract：:The emergence of point-of-care assays enabling bedside testing such as the VerifyNow P2Y12 system might prove useful in clinical settings. The aim of this study was to evaluate the ability of the VerifyNow P2Y12 assay to estimate the inhibition of platelet aggregation provided by clopidogrel in the absence of baseline...

journal_title：Therapeutic drug monitoring

authors： Lordkipanidzé M,Pharand C,Nguyen TA,Schampaert E,Diodati JG

更新日期：2008-06-01 00:00:00

abstract：BACKGROUND:Hair analysis of ethyl glucuronide (EtG) has become, beside fatty acid ethyl ester, a valuable marker for the detection of moderate and chronic excessive alcohol consumption. So far, only few studies exist about the influence of cosmetic treatment on EtG content in hair. The aim of this study was to evaluate...

journal_title：Therapeutic drug monitoring

authors： Kerekes I,Yegles M

更新日期：2013-08-01 00:00:00

abstract：:The time course of appearance of cotinine in saliva and in daily collections of beard clippings was monitored by gas chromatography with mass spectrometry in six volunteers who were nonsmokers following a single 30-min buccal administration of nicotine as a chewing gum. Salivary cotinine concentrations reached a plate...

journal_title：Therapeutic drug monitoring

authors： Gwent SH,Wilson JF,Tsanaclis LM,Wicks JF

更新日期：1995-04-01 00:00:00

abstract：BACKGROUND:Thiopurine S-methyltransferase (TPMT) is an excellent example of an enzyme whose pharmacogenetic polymorphisms affect efficacy and toxicity of a drug. The association between TPMT activity and thiopurine-related myelosuppression is well recognized. To study the significance of TPMT deficiency in thiopurine m...

journal_title：Therapeutic drug monitoring

authors： Misdaq M,Andag R,Oellerich M,Asif AR,von Ahsen N

更新日期：2012-10-01 00:00:00

abstract：BACKGROUND:Current gentamicin dosing algorithms in adult populations target a high peak concentration (Cmax) assuring efficacy and a drug-free period (concentration <0.5 mg/L) preventing toxicity. In contrast, gentamicin-based regimens in neonatal sepsis often aim for lower peak levels and trough concentrations of 0.5-...

journal_title：Therapeutic drug monitoring

authors： van Maarseveen EM,Sprij A,Touw DJ

更新日期：2016-06-01 00:00:00

abstract：:The role of drug assays for screening, diagnosis, and guiding treatment decisions in overdose patients remains unclear. The use of drug concentration data in clinical toxicology research is more problematic, with studies using drug concentrations to simply confirm ingestion in observational studies or others report dr...

journal_title：Therapeutic drug monitoring

authors： Isbister GK

更新日期：2010-06-01 00:00:00

abstract：:Effects of carbamazepine coadministration on plasma concentrations of trazodone and its active metabolite, m-chlorophenylpiperazine (m-CPP) were studied in six depressed patients treated with trazodone. The daily dose of trazodone was 150 mg in three cases and 300 mg in three cases. Carbamazepine, 400 mg/day, was coad...

journal_title：Therapeutic drug monitoring

authors： Otani K,Ishida M,Kaneko S,Mihara K,Ohkubo T,Osanai T,Sugawara K

更新日期：1996-04-01 00:00:00

abstract：:Based on the principle that vancomycin therapy requires sustained therapeutic concentrations while avoiding high peaks, some authors reported that optimal vancomycin levels could be ensured by measuring trough levels alone (Cmin). The aim of this work was to assess the performance of a one-compartment Bayesian forecas...

journal_title：Therapeutic drug monitoring

authors： Andrés I,López R,Pou L,Piñol F,Pascual C

更新日期：1997-12-01 00:00:00

abstract：:Drugs metabolized by cytochrome CYP3A isoenzymes have wide interindividual variability and normally distributed plasma clearance distributions. This makes precise dosing difficult to achieve clinically, which may compromise safe therapy. We hypothesized that with potent inhibition of CYP3A, we could clinically render ...

journal_title：Therapeutic drug monitoring

authors： Tham LS,Lee HS,Wang L,Yong WP,Fan L,Ong AB,Sukri N,Soo R,Lee SC,Goh BC

更新日期：2006-04-01 00:00:00

abstract：:A simple and sensitive column-switching high-performance liquid chromatographic method for the simultaneous determination of itraconazole (ITZ) and its active metabolite, hydroxyitraconazole (HIT) in human plasma is described. ITZ, HIT, and an internal standard, R051012, were extracted from 1 mL of alkalinized plasma ...

journal_title：Therapeutic drug monitoring

authors： Uno T,Shimizu M,Sugawara K,Tateishi T

更新日期：2006-08-01 00:00:00

abstract：:The effect of mycophenolic acid (MPA) in combination with either cyclosporine (CsA) or tacrolimus (TRL) on whole-blood lymphocyte function was assessed in vitro as well as in vivo. For the in vitro studies, rat whole blood was incubated with different concentrations of MPA together with CsA or TRL. In vivo, rats (n = ...

journal_title：Therapeutic drug monitoring

authors： Barten MJ,Shipkova M,Bartsch P,Dhein S,Streit F,Tarnok A,Armstrong VW,Mohr FW,Oellerich M,Gummert JF

更新日期：2005-04-01 00:00:00

abstract：:Pediatric patients with leukemia, other malignancies, and rheumatological disease receive methotrexate chronically. Because of the documented correlation between methotrexate levels of compliance and clinical outcome, it is conceivable to verify appropriate systemic exposure to the drug. Saliva sampling may be of pote...

journal_title：Therapeutic drug monitoring

authors： Press J,Berkovitch M,Laxer R,Giesbrecht E,Verjee Z,Silverman E,Klein J,Koren G

更新日期：1995-06-01 00:00:00

abstract：BACKGROUND:Stiripentol (STP) was approved as an orphan drug in 2007 in Europe as adjunctive therapy with valproic acid (VPA) and clobazam (CLB) for Dravet syndrome. Dravet syndrome is a highly pharmacoresistant form of epilepsy, which starts in early childhood. Data about STP pharmacokinetics and interactions are still...

journal_title：Therapeutic drug monitoring

authors： May TW,Boor R,Mayer T,Jürgens U,Rambeck B,Holert N,Korn-Merker E,Brandt C

更新日期：2012-08-01 00:00:00

abstract：:This study was designed to establish whether plasma lidocaine concentrations changed subsequent to contact with a new formulation of rubber-stopper Vacutainer collection tubes. Plasma lidocaine concentrations from blood samples exposed to rubber stoppers for one hour were compared with concentrations from blood sample...

journal_title：Therapeutic drug monitoring

authors： Lopez LM,Sen A,Robinson JD,Curry RW Jr

更新日期：1987-12-01 00:00:00

abstract：BACKGROUND:Lacosamide (LCM) is one of the newer antiepileptic drugs (AEDs) licensed as add-on treatment for partial epilepsy. Data on LCM pharmacokinetics and interactions are limited and partly contradictory. The purpose of this study was to assess the effect of concomitant AED therapy on steady state plasma concentra...

journal_title：Therapeutic drug monitoring

authors： Contin M,Albani F,Riva R,Candela C,Mohamed S,Baruzzi A

更新日期：2013-12-01 00:00:00

abstract：BACKGROUND:Cyclosporine A (CsA) is used as a posttransplantation immunosuppressant drug, and careful monitoring of CsA concentration in whole blood is essential. A new automated electrochemiluminescence immunoassay (ECLIA) for CsA measurement has been assessed in a multicenter evaluation. METHODS:Residual EDTA whole b...

journal_title：Therapeutic drug monitoring

authors： Vogeser M,Shipkova M,Rigo-Bonnin R,Wallemacq P,Orth M,Widmann M,Verstraete AG

更新日期：2014-10-01 00:00:00

abstract：:Digitalis-like immunoreactive substances (DLIS) obtained from maternal and umbilical cord plasma at delivery were measured by fluorescence polarization immunoassay (FPIA; TDX, Abbott) and microparticle enzyme immunoassay (MEIA; IMX, Abbott). In each sample, concentrations of dehydroepiandrosterone, dehydroepiandroster...

journal_title：Therapeutic drug monitoring

authors： Ijiri Y,Hayashi T,Kamegai H,Ohi K,Suzuki K,Kitaura Y,Takenaka H

更新日期：2003-04-01 00:00:00

abstract：:In 12 institutionalized epilepsy patients who had been treated 19 months (SD +/- 5) with valproic acid, 27.0 mg/kg (SD +/- 11.9), phenytoin, 6.33 mg/kg (SD +/- 1.36), and co-anticonvulsants, the mean percentage of daily free valproic acid was 11.72 (SD +/- 2.10) and of phenytoin 20.39 (SD +/- 3.32). By serial within-d...

journal_title：Therapeutic drug monitoring

authors： Haidukewych D,Rodin EA

更新日期：1981-01-01 00:00:00