Abstract：
INTRODUCTION:cDNA microarray technology has greatly facilitated mechanistic studies in pharmacology and toxicology. A clean hybridization with minimal background is critical for successful microarray analysis and is highly desired. However, clean hybridization alone is not enough; verification is needed. METHODS:Total RNA was isolated from the livers of acetaminophen-intoxicated mice and was subjected to cDNA microarray analyses using ExpressHyb, ULTRArrayHyb or MicroHyb on nylon membranes. Real-time RT-PCR analyses were performed for verification. RESULTS:We have demonstrated in this paper that hybridization systems can significantly impact the quality of array data. MicroHyb produced very clean hybridizations, but some results could not be confirmed by real-time RT-PCR and in accord with biological responses. The hybridization images from ExpressHyb were not always clean, but were reliable. The sensitivity of ULTRArrayHyb was moderate. CONCLUSION:This study has indicated the importance of selecting hybridization buffers in membrane arrays and recommended real-time RT-PCR for follow-up analysis. Gene expression changes should also be correlated with biological significance.
journal_name
J Pharmacol Toxicol Methodsjournal_title
Journal of pharmacological and toxicological methodsauthors
Liu J,Walker N,Waalkes MPdoi
10.1016/j.vascn.2004.02.001keywords:
subject
Has Abstractpub_date
2004-07-01 00:00:00pages
67-71issue
1eissn
1056-8719issn
1873-488Xpii
S1056-8719(04)00006-1journal_volume
50pub_type
杂志文章abstract：INTRODUCTION:Simultaneous recording of electrical potentials from multiple cells may be useful for physiological and pharmacological research. The present study aimed to establish an in vitro cardiac hypoxia experimental platform on the microelectrode array (MEA). METHODS:Embryonic rat cardiac myocytes were cultured o...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2009.02.005
更新日期：2009-05-01 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：:We have developed a method for the rapid isolation of hepatocyte nuclei, which employs gentle homogenization and centrifugation conditions, and involves minimal processing time. The purified nuclei were morphologically unaltered when observed by light and electron microscopy. No significant contamination from cytoplas...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(97)00082-8
更新日期：1997-11-01 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 method of determination of the minute excretion of tubular epithelial cells renders it possible to investigate the course of the nephrotoxic effect of the toxin by the influence of which excretion of tubular round epithelial cells is increased. The nephrotoxic effect of repeated administration of amphotericin B (1...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(96)00126-8
更新日期：1996-12-01 00:00:00
abstract：:Escherichia coli produces a heat-stable (STa) enterotoxin that belongs to a family of peptides that mediate several diarrheal diseases, including traveler's diarrhea and epidemic diarrhea in infants and newborns. The STa enterotoxin consists of 18 or 19 amino acids and is encoded by genes specified on a transposon. In...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章,评审
doi：10.1016/1056-8719(92)90049-7
更新日期：1992-09-01 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:Fosmidomycin is a phosphonic acid derivative originally isolated as a natural antibiotic from Streptomyces lavendulae. It was originally used as an antibiotic, and later on as an antimalarial drug. A simple, sensitive, selective and reproducible bioassay based on colorimetric method was developed for the d...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2010.02.012
更新日期：2010-05-01 00:00:00
abstract：INTRODUCTION:The evaluation of drug disposition properties of chemical entities in drug discovery research typically involves the conduct of pharmacokinetic studies in rodents that requires blood sampling over several time points, preferably without disrupting the physiological status of the animals. Several blood with...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2007.05.006
更新日期：2007-09-01 00:00:00
abstract：INTRODUCTION:Telemetry beagle dogs are the most frequently used species in cardiovascular telemetry assessments. However, beagle dogs may not be always suitable for all of the tests. Recently minipigs have received increased attention for these studies. Differences between the two species regarding the response of thei...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2014.03.172
更新日期：2014-07-01 00:00:00
abstract：INTRODUCTION:There has been an increasing need to conduct investigative safety pharmacology studies to complement regulatory-required studies, particularly as it applies to a comprehensive assessment of cardiovascular (CV) risk. METHODS:We describe refined methodology using a combination of telemetry and direct signal...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2016.05.002
更新日期：2016-09-01 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：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:Bioimpedance spectroscopy (BIS) has been used in human and large animal research to assess body fluid compartment volumes (BFC) such as total body water (TBW), extracellular fluid volume (ECFV), and intracellular fluid volume (ICFV). To date, the application of BIS for determination of BFC in small researc...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2012.02.001
更新日期：2012-03-01 00:00:00
abstract：INTRODUCTION:Although the effects of relatively high concentrations of endotoxin on endothelial activation/dysfunction and kidney markers has been described in literature, detailed insight in the LPS concentration-effect relationship, the magnitude, variability and timing of the response, and potential effects of endot...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.vascn.2017.10.004
更新日期：2018-01-01 00:00:00
abstract：INTRODUCTION:Increase of serum alanine aminotransferase (ALT) activity is widely used as a surrogate marker for tissue damage. Two ALT isoforms, ALT1 and ALT2, have been cloned recently in mammals. The study investigated the source of elevated ALT activity in serum of dogs treated with a hepatotoxic compound. METHODS:...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2009.09.001
更新日期：2009-11-01 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：: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:Opioid withdrawal syndrome is a critical component of opioid abuse and consists of a wide array of symptoms including increases in pain sensitivity (hyperalgesia). A reliable preclinical model of hyperalgesia during opioid withdrawal is needed to evaluate possible interventions to alleviate withdrawal. The...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2013.02.003
更新日期：2013-05-01 00:00:00
abstract：:The isolated perfused mammalian heart preparation was established in 1897 by Oscar Langendorff. The method was developed on the basis of the isolated perfused frog heart established by Elias Cyon at the Carl Ludwig Institute of Physiology in Leipzig, Germany in 1866. Observations made using both methods at the end of ...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 历史文章,杂志文章,评审
doi：10.1016/j.vascn.2006.05.006
更新日期：2007-03-01 00:00:00
abstract：INTRODUCTION:MEKK1 is a 196-kDa serine-threonine kinase activated in response to a variety of stimuli, including EGF, lysophosphatidic acid, osmotic stress, UV light, and microtubule toxins. However, there are few reports about the expression level of MEKK1 in cancers. METHODS:In this report, a direct competitive ELIS...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2004.08.004
更新日期：2005-03-01 00:00:00
abstract：:Toxicogenomics, the application of genomic data to elucidate or predict an organism's response to a toxicant, can inform the drug development process in important ways. It is apparent that standardized approaches to many types of toxicogenomic questions are still being formulated. Specifically, a significant body of p...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章,评审
doi：10.1016/j.vascn.2005.05.006
更新日期：2006-01-01 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：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：: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: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:In order to investigate the pharmacokinetics of water-borne chemicals while eliminating exposures by other routes, a dermal exposure system was developed to expose the hand and forearm of human subjects. METHODS:The goal was, primarily, to study the dermal pharmacokinetics of methyl tertiary butyl ether (...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/S1056-8719(03)00004-2
更新日期：2002-05-01 00:00:00
abstract：:Seizures are amongst the most frequent neurological issues encountered in pre-clinical safety testing. The objective was to characterize EEG morphologies and premonitory signs in drug-induced seizures in preclinical species. A comparative (inter-species) retrospective analysis for drug-induced seizures recorded by vid...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2019.106611
更新日期：2019-01-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was: (1) to characterize and assess the incidence of spontaneous arrhythmias in totally naive Beagle dogs (n=51; 10 males+41 females): (2) to study the effects of permanent ECG- and LVP-probe telemetry implants both acutely and up to 233days after surgery in a subset of 11 female ...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/j.vascn.2011.04.001
更新日期：2011-07-01 00:00:00
abstract：:A sensitive and precise gas chromatography-mass spectrometry method with selected ion monitoring has been developed for determination of ketamine in the brain using chlorpheniramine as an internal standard. The assay is based on the acid extraction of brain homogenate with hexane and ethyl ether with subsequent alkali...
journal_title：Journal of pharmacological and toxicological methods
pub_type： 杂志文章
doi：10.1016/s1056-8719(99)00023-4
更新日期：1999-04-01 00:00:00
