Abstract：
:A review of numerous studies of the protein binding of vancomycin suggests major discrepancies among their results. The reported percent protein binding of vancomycin varies from 0% to 98%. The influence of pH and concentration on the protein binding of vancomycin was investigated in this study. There was a significant difference (p < 0.001) in percent protein binding in vancomycin-spiked plasma samples across the pH range of 7.0-8.0. There was no significant difference (p > 0.05) in percent protein binding in vancomycin-spiked plasma samples across the concentration range of 2-80 mg/L. It is likely that some of the variation reported to date may be due to a lack of control of pH during the measurement of protein binding of vancomycin.
journal_name
J Pharmacol Toxicol Methodsjournal_title
Journal of pharmacological and toxicological methodsauthors
Chen Y,Norris RL,Schneider JJ,Ravenscroft PJdoi
10.1016/1056-8719(92)90066-akeywords:
subject
Has Abstractpub_date
1992-08-01 00:00:00pages
57-60issue
1eissn
1056-8719issn
1873-488Xpii
1056-8719(92)90066-Ajournal_volume
28pub_type
杂志文章abstract：INTRODUCTION:The aim of this investigation was to evaluate methods for increasing Caco-2 cell throughput for assessing drug intestinal absorption. The use of 6-, 12-, and 24-well membranes and the effect of membrane size on permeability and the integrity of the Caco-2 cell monolayer were assessed. In an effort to optim...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(01)00161-7
更新日期：2001-07-01 00:00:00
abstract：INTRODUCTION:Most preclinical trials are designed to identify potential torsadogenicity test only for surrogates of torsade de pointes, most commonly prolongation of the heart rate corrected QT interval (QTc). This study was conducted to determine which correction method best accounts for the effects of changes in the ...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2005.04.013
更新日期：2006-03-01 00:00:00
abstract：:Abnormal water barrier function occurs in irritated skin and certain cutaneous diseases. Methods have been compared for separating the epidermis (site of the barrier) from the whole skin without disturbing the barrier function. The epidermis was separated from newborn rat skin by (1) exposure to 10% trypsin at 4 degre...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(98)00044-6
更新日期：1998-10-01 00:00:00
abstract：INTRODUCTION:The pig is one of the most valuable in vivo models in biomedical research, however with only a few well-accessible veins suitable for venipuncture. Moreover, most of the known methods of blood collection are suitable only for a limited time period. The aim of the study was to verify an improved method of l...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2019.106584
更新日期：2019-01-01 00:00:00
abstract：:Guinea pigs were sensitized with ovalbumin (i.p.) 14 days before use. In vivo airway hyperreactivity induced by ovalbumin inhalation was determined by challenging with aerosolized spasmogen (5-hydroxytryptamine [5-HT] methacholine, the thromboxane-mimetic, U-46619, or adenosine) 24 hr before (7 days with adenosine) an...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(95)00093-3
更新日期：1995-12-01 00:00:00
abstract：:A comparison is made of four rat aortic preparations, that is, single ring, spiral strip, zig-zag strip, and multiple-ring, on the basis of the responses to norepinephrine (NE) and acetylcholine (ACh). The single ring preparation was suitable under isometric, but not under isotonic conditions, because of the small iso...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(96)00023-8
更新日期：1996-06-01 00:00:00
abstract：INTRODUCTION:In recent years, the anesthetized guinea pig has been used increasingly to evaluate the cardiovascular effects of drug-candidate molecules during lead optimization prior to conducting longer, more resource intensive safety pharmacology and toxicology studies. The aim of these studies was to evaluate the co...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2013.04.010
更新日期：2013-07-01 00:00:00
abstract：:We report a simple fluorometric method for the continuous monitoring of mitochondrial membrane potential and cell viability in suspensions of hepatocytes exposed in vitro to cytotoxic agents. Suspensions of freshly isolated hepatocytes (10(6) cells/mL) preloaded with rhodamine 123 (Rh 123, 100 mumol/L) are transferred...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(95)00131-x
更新日期：1996-02-01 00:00:00
abstract：:"What do you know about Safety Pharmacology?" This is the question that was asked in 2000 with the inception of the Safety Pharmacology Society (SPS). There is now a widespread awareness of the role of safety pharmacology in drug discovery and increasing awareness among the wider community of methods and models used i...
journal_title：Journal of pharmacological and toxicological methods
pub_type：
doi：10.1016/j.vascn.2014.08.004
更新日期：2014-09-01 00:00:00
abstract：:This article describes the application of a Microplate Filtration System (MFS) to a binding assay, with the results being compared to those obtained with a conventional 24-Well Filtration Manifold (24WFM). The data reported here characterize the PAF receptor on rabbit platelet membranes using [3H]apafant. The results ...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(96)00074-3
更新日期：1996-09-01 00:00:00
abstract：INTRODUCTION:The aim of this experiment was to establish the usefulness of assessing temporal variability of the QT interval and changes in the T wave morphology in dogs as markers of pro-arrhythmic risk in humans. For this purpose, the electrocardiographic effects of astemizole and cisapride, two well known pro-arrhyt...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2008.03.001
更新日期：2008-05-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to optimize carbon tetrachloride-induced hepatotoxicity in the rat with respect to dose, route of injection, and time course. METHODS:Male Wistar albino rats, 4 to 6 weeks old and weighing 130-180 g were used. Hepatotoxicity was evaluated by measuring the activity of serum en...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/S1056-8719(03)00019-4
更新日期：2002-07-01 00:00:00
abstract：:Induction of acute myocardial infarction in the rat is an established model for studying effects of therapeutic interventions. Images of sections of the rat left ventricle, stained with nitroblue tetrazolium, were digitized and several parameters estimated by dedicated software on an image analyzer (IBAS 2.0). The met...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(95)00019-e
更新日期：1995-08-01 00:00:00
abstract：INTRODUCTION:Evaluation of drug candidates in in-vitro assays of action potential duration (APD) is one component of preclinical safety assessment. Current assays are limited by technically-demanding, time-consuming electrophysiological methods. This study aimed to assess whether a voltage-sensitive dye-based assay cou...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2009.03.005
更新日期：2009-07-01 00:00:00
abstract：INTRODUCTION:Recent EU/US pediatric legislation and FDA/EMEA guidelines recognize the potential differences in safety profiles of drugs in adults versus young patients. Hence safety studies are recommended to investigate key functional domains of e.g. the developing CNS. METHODS:Selected psychoactive stimulants (caffe...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2008.06.001
更新日期：2008-09-01 00:00:00
abstract：INTRODUCTION:Excitation of Acetylcholine-mediated (Ach) transmission (especially if irreversible) may pose life-threatening adverse events by increasing neuronal network activity. Unfortunately, adequate detection of this liability during early drug development is hampered, because published ex vivo electrophysiologica...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2014.12.001
更新日期：2015-01-01 00:00:00
abstract：INTRODUCTION:The analytical solutions to compartmental pharmacokinetic models are well known, but have not been presented in a form that easily allows for complex dosing regimen and changes in covariate/parameter values that may occur at discrete times within and/or between dosing intervals. METHODS:Laplace transforms...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2015.03.004
更新日期：2015-05-01 00:00:00
abstract：:An HPLC method is described using conductimetric detection for the quantitative determination of sodium, potassium, magnesium, and calcium in cerebrospinal fluid (CSF) and plasma of conscious rabbits. This method enabled the four cations to be estimated with rapidity, sensitivity, accuracy, and precision. The mean mil...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(93)90057-l
更新日期：1993-04-01 00:00:00
abstract：:This article outlines a strategy for collecting accurate data for the determination of the sensitivity, specificity and predictive value of safety pharmacology models. This entails performing a retrospective analysis on commonly used safety pharmacology endpoints and an objective assessment of new non-clinical models....
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2009.05.011
更新日期：2009-09-01 00:00:00
abstract：INTRODUCTION:In this paper the activity of cytoplasmatic antioxidant enzymes after multiple freeze-thaw cycles of samples of cytoplasm was assayed in order to characterise the limits that would be necessary to impose on experimental design. METHODS:The activities of antioxidant enzymes in samples of rat liver cytoplas...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2005.03.002
更新日期：2005-09-01 00:00:00
abstract：:A tissue preparation is described which makes it possible to examine the effect of drugs on the nerves that control both longitudinal and circular muscles of the small intestine. The preparation consists of a segment of rat ileum set up to measure the tension developed in the longitudinal muscle and intraluminal press...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(96)00110-4
更新日期：1996-11-01 00:00:00
abstract：INTRODUCTION:Detection of drug effects on neuronal synapses is important for predicting their adverse effects. We have used drebrin as a marker to detect the synaptic changes in cultured neurons. High concentration of glutamate decreases the amount of drebrin in synapses. To increase the availability of this method for...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2019.106607
更新日期：2019-01-01 00:00:00
abstract：INTRODUCTION:The ICH S7B guidelines recommend that all new chemical entities should be subjected to hERG repolarization screening due to its association with life-threatening "Torsades de Pointes" (TdP) arrhythmia. However, it has become evident that not all hERG channel inhibitors result in TdP and not all compounds t...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2016.06.004
更新日期：2016-09-01 00:00:00
abstract：INTRODUCTION:Different methods for the analysis of behavioral observation data were compared to evaluate how the interpretation of a data set may depend on the analysis method employed. METHODS:Three methods of analysis were used to evaluate the same four sets of rodent behavioral FOB data: (1) evaluation by a trained...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2010.06.001
更新日期：2010-09-01 00:00:00
abstract：:For the rapid assay of norepinephrine (NE) and its major metabolite, 3-methoxy-4-hydroxyphenylglycol (MHPG) in the mouse brain, we developed a simple method using isocratic HPLC with coulometric detection. This method permits NE and MHPG assay within 5 min in one chromatographic run. Within-run coefficients of variati...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(94)90060-4
更新日期：1994-10-01 00:00:00
abstract：INTRODUCTION:Insect nicotinic acetylcholine receptors (nAChRs) represent a major target of insecticides, belonging to the neonicotinoid family. However, the pharmacological profile of native nAChRs is poorly documented, mainly because of a lack of knowledge of their subunit stoichiometry, their tissue distribution and ...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2015.09.004
更新日期：2016-01-01 00:00:00
abstract：INTRODUCTION:The aim of this work was to compare the suitability of different pharmacodynamic models for PK-PD modeling of verapamil cardiovascular effects in aortic coarctated rats (ACo), a model of renovascular hypertension. METHODS:A "shunt" microdialysis probe was inserted in a carotid artery of anaesthetized sham...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2008.03.002
更新日期：2008-05-01 00:00:00
abstract：INTRODUCTION:Oxidative stress plays an important role in drug-induced toxicity. Oxidative stress-mediated toxicities can be detected using conventional animal models but their sensitivity is insufficient, and novel models to improve susceptibility to oxidative stress have been researched. In recent years, gene targetin...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2018.12.006
更新日期：2019-01-01 00:00:00
abstract：:The aim of the present study was to formulate a simple chemically defined medium for the in vitro growth of rat two-cell embryos to blastocysts. Embryos from day 2 pregnant rats were retrieved and placed in paraffin oil-covered droplets of "rat two-cell embryo culture medium" (R2ECM) containing combinations of various...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(00)00084-8
更新日期：2000-05-01 00:00:00
abstract：:The majority of articles published in J Pharmacol Tox Methods describe new approaches, or modifications to those established (Curtis, 2006). However, even established methods have their limitations. It is part of the practice of research to troubleshoot: to identify methodological weaknesses and correct them. This pro...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 社论
doi：10.1016/j.vascn.2010.02.013
更新日期：2010-03-01 00:00:00
