Abstract：
:1. The variation with clock-hour in the behaviour of naive rats in a Y-maze has been recorded.2. The number of entries recorded was highest during the light period while the number of faecal boluses was highest during the dark period. Rearing showed a biphasic periodicity.3. The responses to LSD, mescaline and amphetamine also showed significant variation with clock-hour.4. In general, amphetamine, 1.25 mg/kg, increased the number of entries and the number of rears, the effect being greatest at the end of the light period. LSD, 100 mug/kg, and mescaline, 12.5 mg/kg, decreased the number of entries and the number of rears.5. All three drugs decreased the number of faecal boluses. The possible significance of these responses in terms of an effect on the emotional state of the animals is discussed.
journal_name
Br J Pharmacoljournal_title
British journal of pharmacologyauthors
Davies JA,Redfern PHdoi
10.1111/j.1476-5381.1973.tb08274.xsubject
Has Abstractpub_date
1973-09-01 00:00:00pages
121-7issue
1eissn
0007-1188issn
1476-5381journal_volume
49pub_type
杂志文章abstract：BACKGROUND AND PURPOSE:Subunit-specific modulators of gamma-aminobutyric acid (GABA) type A (GABA(A)) receptors can help to assess the physiological function of receptors with different subunit composition and also provide the basis for the development of new drugs. Valerenic acid (VA) was recently identified as a beta...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.2010.00865.x
更新日期：2010-09-01 00:00:00
abstract：:1. The single-channel current recording technique has been used to investigate the effects of cromakalim, diazoxide and ATP, separately and combined, on the opening of ATP-sensitive potassium channels in the insulin-secreting cell-line RINm5F. The actions of these drugs have been studied using the permeabilized open-c...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1990.tb14672.x
更新日期：1990-01-01 00:00:00
abstract：:(1) 5-HT moduline (5-HTm) is tetrapeptide (Leu-Ser-Ala-Leu) previously shown to act as a specific endogenous antagonist to central 5-HT(1B/1D) receptors. Its effects were investigated in rat and rabbit pulmonary arteries (PAs). (2) In rabbit PAs, contractile responses to the 5-HT(1B/1D) receptor agonist 5-carboxamidot...
journal_title：British journal of pharmacology
pub_type： 评论,杂志文章
doi：10.1038/sj.bjp.0705123
更新日期：2003-03-01 00:00:00
abstract：:1. The effect of the nootropic drug, piracetam on stress- and subsequent morphine-induced prolactin (PRL) secretion was investigated in vivo in male rats, by use of a stress-free blood sampling and drug administration method by means of a permanent indwelling catheter in the right jugular vein. 2. Four doses of pirace...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1996.tb15218.x
更新日期：1996-02-01 00:00:00
abstract：:1 The N6-2-O-dibutyryl derivative of adenosine 3',5'-monophosphate (db cyclic AMP) has been micro-injected into the third cerebral ventricle of the unanaesthetized, restrained mouse and the effects on body temperature and thermoregulatory activities observed. 2 Db cyclic AMP (4, 16 and 32 micrograms) injected intracer...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1980.tb08723.x
更新日期：1980-11-01 00:00:00
abstract：:1. The effects of (-)-baclofen, muscimol and phaclofen on endogenous gamma-aminobutyric acid (GABA) release from rat cortical slices, spinal cord slices and entire retinas were studied. 2. The spontaneous resting release of GABA from the three tissues was 3 to 6 pmol mg-1 wet wt 10 min-1. Depolarization of cortical sl...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1989.tb16869.x
更新日期：1989-09-01 00:00:00
abstract：:1. The oral sedative potencies of cannabis herb, crude ethanolic and petroleum-ether fractions, were assayed against delta'-trans-tetrahydrocannabinol (THC) administered orally to mice, by measuring spontaneous motor activity over 30 min periods, at selected times, up to 6 h. 2. The THC contents of the extracts were d...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1981.tb09145.x
更新日期：1981-04-01 00:00:00
abstract：BACKGROUND AND PURPOSE:The bladder urothelium is now known to have active properties. Our aim was to investigate the contractile properties of the urinary mucosa in response to the tachykinin neurokinin A (NKA) and carbachol. EXPERIMENTAL APPROACH:Discrete concentration-response curves for carbachol and NKA were obtai...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/bjp.2008.29
更新日期：2008-04-01 00:00:00
abstract：:The effect of a substance P antagonist, [D-Pro2, D-Trp7,9]-substance P (SPA), on gastric emptying and gastrointestinal transit in the rat was studied in order to elucidate a possible physiological role of endogenous substance P and other tachykinins in gastrointestinal motility. SPA was given by intraperitoneal inject...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1986.tb11144.x
更新日期：1986-11-01 00:00:00
abstract：:Dopamine, noradrenaline (NA) and adrenaline (Ad) depletion by 6-hydroxydopamine (6-OHDA) and pargyline plus 6-OHDA was investigated in the cat left ventricle, mesenteric and renal arteries, renal cortex, renal medulla and adrenal medulla. Catecholamine concentrations in plasma were also analyzed in these two experimen...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1985.tb08903.x
更新日期：1985-10-01 00:00:00
abstract：:Initiation of 60 min ischaemia to rat isolated hearts produced a depression in developed tension and heart rate. Subsequent reperfusion caused a greatly exacerbated creatine phosphokinase (CPK) efflux and limited functional recovery. Sulphinpyrazone (100 ng ml-1 and 1 microgram ml-1) significantly reduced CPK release,...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1984.tb10138.x
更新日期：1984-09-01 00:00:00
abstract：:1. The effects of a new kind of volatile anaesthetic, sevoflurane (Sev), on gamma-aminobutyric acid (GABA)-gated chloride current (Icl) in single neurones dissociated from the rat hippocampal CA1 area were examined using the nystatin perforated patch recording configuration under the voltage-clamp condition. All drugs...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1996.tb15772.x
更新日期：1996-11-01 00:00:00
abstract：LINKED ARTICLES:This article is part of a themed section on Nitric Oxide 20 Years from the 1998 Nobel Prize. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v176.2/issuetoc. ...
journal_title：British journal of pharmacology
pub_type： 社论
doi：10.1111/bph.14540
更新日期：2019-01-01 00:00:00
abstract：:1. Conventional microelectrode techniques were used for intracellular recordings of the transmembrane electrical potentials, the effects of berberine were studied on canine cardiac Purkinje and ventricular muscle fibres and on rabbit atrial fibres. 2. Berberine (3-30 microM) increased in a concentration-dependent mann...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1993.tb12836.x
更新日期：1993-02-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Selective cannabinoid CB2 receptor agonists have demonstrated analgesic activity across multiple preclinical pain models. AM1241 is an indole derivative that exhibits high affinity and selectivity for the CB2 binding site and broad spectrum analgesic activity in rodent models, but is not an antag...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0707568
更新日期：2008-01-01 00:00:00
abstract：:1. 2-2' Pyridylisatogen tosylate (PIT) (greater than 2.5 muM) relaxed the guinea-pig isolated taenia caeci by an unknown mechanism. 2. With higher concentrations of PIT (greater than 12.5 muM) subsequent applications of adenosine 5'-triphosphate (ATP) (2-600 muM) revealed a blockade of the ATP receptors. The antagonis...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1975.tb07397.x
更新日期：1975-04-01 00:00:00
abstract：BACKGROUND:Intrathecal (i.t.) injection of orexin A (OX-A) increases blood pressure and heart rate (HR), but the effects of OX-A on sympathetic and phrenic, nerve activity, and the baroreflex(es), somato-sympathetic and hypoxic chemoreflex(es) are unknown. EXPERIMENTAL APPROACH:Urethane-anaesthetized, vagotomized and ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.2010.01102.x
更新日期：2011-02-01 00:00:00
abstract：:Pulmonary hypertension (PH) is defined by elevated mean pulmonary artery pressure following the pathological remodelling of small pulmonary arteries. An increase in right ventricular (RV) afterload results in RV hypertrophy and RV failure. The pathophysiology of PH, and RV remodelling in particular, is not well unders...
journal_title：British journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1111/bph.13721
更新日期：2017-04-01 00:00:00
abstract：:1. Thoracic aortae, isolated from rats supplemented with dietary vitamin E after vitamin E deficiency, were analysed for changes in vascular reactivity. 2. Following 4 or 12 months of dietary vitamin E deficiency, endothelium-dependent vasodilator responses to acetylcholine were significantly impaired. However, when a...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1994.tb13103.x
更新日期：1994-06-01 00:00:00
abstract：:1. Leukotriene B(4) (LTB(4)) stimulation of guinea-pig peritoneal eosinophils, induced a biphasic activation of the NADPH oxidase composed of a rapid (<3 min) phase mediated by non-adherent cells and a sustained (3 - 120 min) phase mediated by CD11b/CD18 adherent eosinophils. Studies were undertaken to compare the int...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0704314
更新日期：2001-10-01 00:00:00
abstract：:1. The sigma(1) (sigma(1)) receptor cDNA was cloned in several animal species. Molecular tools are now available to identify its endogenous effectors, such as neuroactive steroids, and to establish its precise physiological role. In particular, the sigma(1) receptor is involved in memory processes, as observed in phar...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0704355
更新日期：2001-12-01 00:00:00
abstract：:The effects of the opioid receptor agonist RX783006 and of the opioid receptor partial agonist (+)-meptazinol have been examined on electrically induced twitch responses of the guinea-pig isolated ileum and of the mouse isolated vas deferens. Log10 concentration-tissue state curves were determined for (+)-meptazinol a...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1986.tb10246.x
更新日期：1986-07-01 00:00:00
abstract：:1. In mouse pancreatic beta-cells the regulation of the diazoxide-sensitivity of the adenosine 5'-triphosphate-dependent K+ channel (K-ATP-channel) was examined by use of the patch-clamp technique. 2. In intact beta-cells incubated at 37 degrees C in the presence of 3 mM D-glucose, diazoxide did not affect the single ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1992.tb14467.x
更新日期：1992-09-01 00:00:00
abstract：BACKGROUND AND PURPOSE:It has been extensively reported that the leading anti-diabetic drug, metformin, exerts significant anticancer effects. This hydrophilic, cationic drug requires cation transporters for cellular entry where it activates its intracellular target, the AMPK signalling pathway. However, clinical resul...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/bph.14694
更新日期：2019-08-01 00:00:00
abstract：:1 The beta-adrenoceptor agonist isoprenaline normally causes only a small and inconsistent increase in the membrane potential of cells in guinea-pig liver slices, in contrast to the large hyperpolarizations seen with alpha-agonists. However, after a selective alpha-adrenoceptor agonist has been applied, the response t...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1977.tb06991.x
更新日期：1977-01-01 00:00:00
abstract：:Adenosine 5'-triphosphate (ATP) and adenylyl 5'-(beta, gamma-methylene)-diphosphonate (AMP-PCP) both contracted the guinea-pig urinary bladder, but the response to AMP-PCP was much greater. We synthesized the enantiomer of AMP-PCP, L-adenylyl 5'-(beta, gamma-methylene)-diphosphonate (L-AMP-PCP), and tested it on the g...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1984.tb16453.x
更新日期：1984-05-01 00:00:00
abstract：BACKGROUND AND PURPOSE:N-arachidonoyl 5-HT (NA-5HT) has anti-nociceptive effects reported to be mediated by inhibitory actions at the transient receptor potential vanilloid receptor 1 (TRPV1) and fatty acid amide hydrolase (FAAH). Anandamide and N-arachidonoyl dopamine (NA-DA), endocannabinoids that activate TRPV1 or a...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.2012.02047.x
更新日期：2012-11-01 00:00:00
abstract：:1. The possible mechanisms of action of the inhibitory effect of gomisin C on the respiratory burst of rat neutrophils in vitro was investigated. 2. The peptide formyl-Met-Leu-Phe (FMLP) induced superoxide anion (O2-) formation and O2 consumption, which was inhibited by gomisin C in a concentration-dependent manner (I...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1994.tb17084.x
更新日期：1994-11-01 00:00:00
abstract：:1. The putative alpha 1-adrenoceptor subtypes of rat cerebral cortex membranes were characterized in binding. 2. Specific binding of [3H]-prazosin was saturable between 20-5000 pm. Scatchard plots of the binding data were non-linear, indicating the presence of two distinct affinity sites for prazosin (pKD, high = 10.1...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1991.tb12533.x
更新日期：1991-12-01 00:00:00
abstract：:(1) Rapid desensitization of ligand-gated ion channel receptors can alter the apparent activity of receptor modulators, as well as make detection of fast-channel activation difficult. Investigation of the antagonist pharmacology of ATP-sensitive homomeric P2X3 receptors is limited by agonist-evoked fast-desensitizatio...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0705411
更新日期：2003-09-01 00:00:00
