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 millimolar concentrations +/- SD found in CSF and (plasma) of 15 untreated animals were as follows: sodium, 146.96 +/- 17.84 (135.06 +/- 20.11); potassium, 3.32 +/- 0.56 (4.57 +/- 1.03); magnesium, 0.90 +/- 0.20 (0.72 +/- 0.13); and calcium, 1.47 +/- 0.19 (3.32 +/- 0.59).
journal_name
J Pharmacol Toxicol Methodsjournal_title
Journal of pharmacological and toxicological methodsauthors
Frosini M,Gorelli B,Matteini M,Palmi M,Valoti M,Sgaragli GPdoi
10.1016/1056-8719(93)90057-lsubject
Has Abstractpub_date
1993-04-01 00:00:00pages
99-104issue
2eissn
1056-8719issn
1873-488Xpii
1056-8719(93)90057-Ljournal_volume
29pub_type
杂志文章abstract：INTRODUCTION:Drug-induced QT interval prolongation may lead to ventricular arrhythmias. The aim of the study was to optimize QT interval data processing to quantify drug-induced QT interval prolongation in the telemetry instrumented conscious dog model. METHODS:The test substances cisapride, dofetilide, haloperidol, a...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2006.02.009
更新日期：2007-01-01 00:00:00
abstract：:High-content screening (HCS) systems can be used for high-throughput screening of drugs in human embryonic stem cells (hESCs). However, hESCs require immunofluorescence staining with stemness markers (e.g., Oct-4) prior to HCS, which can be time consuming and labor intensive. In this study, we employed transgenic hESC...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2020.106913
更新日期：2020-01-01 00:00:00
abstract：:Recently, Calderone and Martinotti (J Pharmacol Toxicol Meth 40:57-62, 1998) presented a simple equation for the estimation of agonist dissociation equilibrium constants from data obtained from receptor inactivation experiments using an irreversible, competitive antagonist. In the present paper, however, it is demonst...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(99)00011-8
更新日期：1998-11-01 00:00:00
abstract：INTRODUCTION:In vivo profiles of aldosterone synthase inhibitors (ASIs) have been investigated utilizing various rodent models. Due to lack of CYP17 activity, rodents produce corticosterone rather than cortisol as that of humans, which raised concern to their effectiveness in translational pharmacological characterizat...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2014.09.011
更新日期：2015-01-01 00:00:00
abstract：INTRODUCTION:An increase in striatal dopamine is considered essential for the rewarding and reinforcing effects of drugs of abuse. We have developed and validated an ultra high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) method for the analysis of dopamine in rat brain extracellular fluid (...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2015.06.002
更新日期：2015-07-01 00:00:00
abstract：INTRODUCTION:Drug-induced QT interval prolongation has been one of the critical issues for developing new chemical entities and pharmaceutical companies need to evaluate the risk early in the development stage. At such stage, guinea pigs are appropriate due to their small size requiring only small amounts of test drugs...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2006.11.002
更新日期：2007-05-01 00:00:00
abstract：:The acetylcholine-evoked relaxation of rabbit isolated thoracic aorta precontracted by phenylephrine was studied. Phenylephrine caused a steady contraction that was maintained for 6 h. In the presence of calcium disodium ethylenediaminetetraacetate (EDTA) and ascorbic acid the contraction decreased with time. N(G)-Nit...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(99)00035-0
更新日期：1999-08-01 00:00:00
abstract：:In a typical flowchart for discovery of novel analgesic (or other) agents, a critical path often involves maximization of the separation of the therapeutic endpoint from known adverse-effect (AE) endpoint(s). Although strategies can easily be designed for in vitro paradigms such as high-throughput screening, extension...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(00)00041-1
更新日期：1999-11-01 00:00:00
abstract：INTRODUCTION:Intracellular calcium concentration ([Ca(2+)](i)) modifications in endothelial and smooth muscle cells represent a key element in the pathogenesis of cerebral artery vasospasm. Therefore, the present study documented potential application of confocal laser microscopy in the determination of contractile and...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2007.03.002
更新日期：2007-07-01 00:00:00
abstract：:Small interfering RNA (siRNA) directs the targeted destruction of mRNA encoding a specific protein, in a process known as RNA interference (RNAi). This stops translation of the targeted mRNA into protein, effectively silencing the gene. RNAi is a recent discovery, identified in mammalian cells in 2001, but it has rapi...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2004.08.012
更新日期：2005-05-01 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：INTRODUCTION:The evaluation of drug's cytotoxicity is a crucial step in the development of new pharmacological compounds. 31P NMR can be a tool for toxicological screening, as it enables the study of drugs' cytotoxicity and their effect on cell energy metabolism in a real-time, in a non- invasive and non-destructive wa...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2018.11.004
更新日期：2019-01-01 00:00:00
abstract：:The purpose of this study was to develop a simple and noninvasive method for the quantitative evaluation of neuromuscular blockade in mice. The sciatic nerve in anesthetized animals (etomidate, 50 mg/kg or mephenesin, 250 mg/kg) was stimulated using transcutaneous electrodes; repetitive supramaximal stimulations (3 Hz...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(92)90033-w
更新日期：1992-05-01 00:00:00
abstract：INTRODUCTION:IonWorks automated patch clamp systems are being widely used for ion channel drug discovery, but the perforated patch mode of these systems makes it difficult to obtain a steady intracellular Ca(2+) concentration ([Ca(2+)](i)). This difficulty prevents obtaining high-quality data regarding Ca(2+)-activated...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2012.10.005
更新日期：2013-01-01 00:00:00
abstract：INTRODUCTION:The aim of the present study was to compare sensitivity in detecting the drug-induced QT interval prolongation in three dog models: conscious telemetered at sinus rhythm and conscious and anesthetized dogs during atrial pacing. The test substances used represent different chemical classes with different ph...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2007.05.002
更新日期：2007-09-01 00:00:00
abstract：INTRODUCTION:Drug-induced QT prolongation is a major safety issue during drug development because it may lead to lethal ventricular arrhythmias. In this study, we evaluated the utility of multi-electrode arrays (MEA) with human induced pluripotent stem cell-derived cardiomyocytes (hiPS-CMs) to predict drug-induced QT p...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章,多中心研究
doi：10.1016/j.vascn.2015.12.002
更新日期：2016-03-01 00:00:00
abstract：INTRODUCTION:A custom designed HD exposure system was used to deliver controlled inhaled doses to an animal model through an endotracheal tube. METHODS:Target HD vapor challenges were generated by a temperature controlled bubbler/aerosol trap, while concentration was monitored near real-time by gas chromatography. Ani...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2014.09.009
更新日期：2015-01-01 00:00:00
abstract：:The properties of the ternary complex model (TCM) of drug action at G protein-coupled receptors (GPCRs) were examined, using theoretical computer simulations, with regard to the predicted effects of the presence of a fixed concentration of one agonist on the competition binding profile of another. Subsequently, the bi...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(00)00078-2
更新日期：2000-01-01 00:00:00
abstract：:There are three major assays that must be conducted in standard investigational new drug (IND) -enabling ototoxicity study designs: 1) functional acoustic threshold measurements (Auditory Brainstem Respsonse, ABR); 2) otohistopathology and 3) cytocochleograms. We provide evidence to demonstrate the unreliability of au...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章,评审
doi：10.1016/j.vascn.2017.09.254
更新日期：2017-01-01 00:00:00
abstract：INTRODUCTION:Methods to determine infarct size following ischemia-reperfusion injury include gross staining with triphenyltetrazolium chloride (TTC) and perfusion of colored dyes to demarcate the non-ischemic zone. Infarcted tissue (INF) can typically appear a mottled tan to brownish color, making a border between INF ...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2006.06.005
更新日期：2007-03-01 00:00:00
abstract：:The objective of this research is to determine whether the administration of a complete soft food formula to sub-lethal irradiated animals from three different transgenic mouse strains over a period of 21 consecutive days will have a significant impact on the clinical signs, and the general survival rate of the animal...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2014.12.003
更新日期：2015-01-01 00:00:00
abstract：INTRODUCTION:Heart rate affects coronary flow, but the mechanism is complex. The relationship between rhythm and flow is unclear, especially in experimental settings used for determining drug actions. The present study examined whether ventricular irregularity influences coronary flow independently of heart rate. METH...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2015.10.001
更新日期：2016-01-01 00:00:00
abstract：INTRODUCTION:The Health and Environmental Sciences Institute of the International Life Sciences Institute (ILSI/HESI) Cardiovascular Safety Subcommittee outlined a set of in vivo telemetry studies to determine how well this preclinical model identified compounds known to cause torsades de pointes (TdP) and prolong QT i...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2007.04.002
更新日期：2007-09-01 00:00:00
abstract：INTRODUCTION:Drug-induced cardiovascular effects identified in conscious cynomolgus monkeys equipped with tethers and prepared for radiotelemetry were compared with results from anesthetized non-human primate (cynomolgus and rhesus) models. METHODS:Remifentanil (4.0 microg/kg, bolus), esmolol (2.0 mg/kg, bolus) and do...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2008.05.004
更新日期：2008-09-01 00:00:00
abstract：:Hemodynamic and biochemical changes were studied on 36 white ELCO-rabbits, seven adult older than 150 days, seven immatures between 21 and 27 days, and seven neonatals between 7 and 14 days. Five supplementary hearts of each age group served for preischemic biochemical values. Protection during 60 min of global ischem...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(93)90016-8
更新日期：1993-12-01 00:00:00
abstract：INTRODUCTION:Implantable telemetry enables continuous monitoring of physiological functions in freely moving animals and can greatly complement pharmacological research. Despite its miniaturization, a sensor/transmitter constitutes 5% or more of a mouse's bodyweight. The aim of the present study was to evaluate whether...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2017.02.002
更新日期：2017-01-01 00:00:00
abstract：INTRODUCTION:Parts A and B of the ICH S7 guidelines on safety pharmacology describe the in vivo studies that must be conducted prior to first time in man administration of any new pharmaceutical. ICH S7A requires a consideration of the sensitivity and reproducibility of the test systems used. This could encompass maint...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章,多中心研究
doi：10.1016/j.vascn.2013.04.008
更新日期：2013-07-01 00:00:00
abstract：:The use of 3H-paroxetine as a ligand for quantitative autoradiography of serotonin (5-HT) transport sites was optimized, and the distribution of 3H-paroxetine binding sites in rat brain was studied. Under the conditions described, 3H-paroxetine binding in forebrain sections was of high affinity and saturable, with a K...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(92)90043-z
更新日期：1992-07-01 00:00:00
abstract：:In the present study we have examined the effects of the general anesthetic agents for the excision of the heart on the hemodynamic function of the ischemic perfused heart. Animals were divided into three groups. In one group rats were anesthetized with sodium pentobarbital intraperitoneally. Animals of the second and...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/1056-8719(93)90049-k
更新日期：1993-02-01 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
