Abstract：
:1 The butyrophenone tranquilizer, azaperone, was administered intramuscularly, at dose levels of 0.4 and 0.8 mg/kg, to ponies and its effects on cardiovascular and respiratory functions assessed. 2 Arterial blood pH, CO2 tension (PaCO2) and O2 tension (PaO2) remained relatively constant throughout the course of action of azaperone. 3 Azaperone did not modify plasma protein concentration but venous blood packed cell volume and haemoglobin concentration were reduced by 5 to 10% for at least 4 hours. These changes were probably caused by uptake of erythrocytes into the splenic reservoir. 4 Small increases in heart rate occurred for up to 60 min after administration of the drug, and this was followed by a slight bradycardia in some ponies. 5 Azaperone reduced mean arterial blood pressure (MAP) for at least 4 h, by which time its ataractic action was generally no longer apparent. The hypotension was caused, during the early phase of action at least, by a reduction in peripheral resistance, since cardiac output was increased slightly 20 min after its administration. Possible mechanisms underlying the cardiovascular changes are discussed. 6 In spite of reductions in arterial blood O2 content and MAP produced by azaperone, it is likely that tissue oxygenation was adequate, since arterial blood lactate concentrations were not increased.
journal_name
Br J Pharmacoljournal_title
British journal of pharmacologyauthors
Lees P,Serrano Ldoi
10.1111/j.1476-5381.1976.tb07637.xsubject
Has Abstractpub_date
1976-03-01 00:00:00pages
263-9issue
3eissn
0007-1188issn
1476-5381journal_volume
56pub_type
杂志文章abstract：:1. The regulatory mechanism for the hypertrophy of skeletal muscles induced by clenbuterol is unclear. The purpose of the present study was to determine the extent to which transforming growth factor betas (TGFbetas), fibroblast growth factors (FGFs), hepatocyte growth factor (HGF), and platelet-derived growth factors...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0706625
更新日期：2006-02-01 00:00:00
abstract：:1. Interactions of bath-applied pentobarbitone and gamma-aminobutyric acid (GABA) on neurones in isolated superior cervical ganglia of the rat have been examined with intracellular microelectrodes. 2. Pentobarbitone itself (30 micrometer-1 mM) showed no clear or consistent GABA-like effects: changes in resting input c...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1978.tb07791.x
更新日期：1978-05-01 00:00:00
abstract：:The metabolism and efficacy of 5-fluorouracil (FUra) and other fluorinated pyrimidine (FP) derivatives have been intensively investigated for over fifty years. FUra and its antimetabolites can be incorporated at RNA- and DNA-levels, with RNA level incorporation provoking toxic responses in human normal tissue, and DNA...
journal_title：British journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1111/j.1476-5381.2009.00423.x
更新日期：2009-10-01 00:00:00
abstract：:1. Histamine (2-4 micrograms kg-1 i.v.) increased airways resistance (Raw) and decreased dynamic lung compliance (Cdyn) in urethane-anaesthetized guinea-pigs. The effects on Raw were almost abolished by atropine (0.1 mg kg-1 i.v.) and reduced by vagal cooling (11-16 degrees C). 2. Histamine-induced changes in Raw and ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1988.tb11555.x
更新日期：1988-06-01 00:00:00
abstract：:1. [125I]-Tyr4-bombesin exhibited saturable binding to pancreatic acinar cells. 2. Preincubation of cells at 37 degrees C with 0.03 nM-1 microM-bombesin for 10 min followed by acid or neutral washes reduced subsequent binding of [125I]-Tyr4-bombesin in a concentration-dependent manner by up to 90%. 3. In cell suspensi...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1994.tb13187.x
更新日期：1994-08-01 00:00:00
abstract：BACKGROUND AND PURPOSE:NO-mediated, endothelium-dependent relaxations of isolated arteries are blunted by ageing and high-fat diets, as well as by apolipoprotein E deletion. The present study was designed to test the hypothesis that apolipoprotein E deletion impairs endothelium-dependent responses to prostacyclin (IP) ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/bph.14386
更新日期：2018-09-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Tanshinol borneol ester (DBZ) is a novel synthetic compound derived from Dantonic® , a botanical drug approved in 26 countries outside the United States for angina pectoris and currently undergoing FDA Phase III clinical trial. Here, we investigated the angiogenic effects of (S)-DBZ and (R)-DBZ i...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/bph.14714
更新日期：2019-09-01 00:00:00
abstract：:1. Pyridoxalphosphate-6-azophenyl-2',4'-disulphonic acid (PPADS), a P2-purinoceptor antagonist, was investigated for its ability to antagonize: (1) P2X-purinoceptor-mediated contractions of the rabbit central ear artery and saphenous artery evoked by either alpha,beta-methylene ATP (alpha,beta-MeATP) or electrical fie...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1994.tb14827.x
更新日期：1994-03-01 00:00:00
abstract：:Since protease-activated receptors (PARs) are distributed throughout the gastrointestinal tract, we investigated the role of PARs in modulation of the motility of the rat oesophageal muscularis mucosae. Thrombin produced contraction of segments of the upper and lower part of the smooth muscle. Trypsin contracted both ...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0703590
更新日期：2000-10-01 00:00:00
abstract：:By examination of compound action potentials in the saphenous nerve of the anaesthetized rat it has been shown that capsaicin causes a rapid, dose-dependent, failure of conduction in many C-fibres when applied directly to the nerve. A large reduction in C-fibre conduction occurs with concentrations as low as 110 micro...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1986.tb10256.x
更新日期：1986-10-01 00:00:00
abstract：:1. We investigated how microsomal cytochrome P450 mono-oxygenase (Cyp450 MO) is regulated in cultured porcine aortic endothelial cells. The hypothesis that a Cyp450 MO-derived metabolite links Ca2+ store depletion and Ca2+ entry was studied further. 2. Microsomal Cyp450 MO was monitored fluorometrically by dealkylatio...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0701304
更新日期：1997-08-01 00:00:00
abstract：BACKGROUND AND PURPOSE:Atherosclerosis is associated with reduced vascular hydrogen sulfide (H2 S) biosynthesis. GYY4137 is a novel slow-releasing H2 S compound that may effectively mimic the time course of H2 S release in vivo. However, it is not known whether GYY4137 affects atherosclerosis. EXPERIMENTAL APPROACH:RA...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/bph.12246
更新日期：2013-08-01 00:00:00
abstract：:1 The effects of opioids on synaptic transmission in cat sacral parasympathetic colonic ganglia were studied in vitro, using intracellular electrophysiological techniques. Electrical stimulation of the pelvic nerve evoked fast excitatory postsynaptic potentials (e.p.s.ps), which were blocked by hexamethonium and tetro...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1987.tb11340.x
更新日期：1987-10-01 00:00:00
abstract：:1. The electrical activity of guinea-pig pelvic ganglion cells following iontophoretically applied cholinergic drugs, alone and during orthodromic nerve stimulation via the hypogastric nerve, has been recorded intracellularly.2. Iontophoretic application of nicotine (Nic) and acetylcholine (ACh) reduced membrane resis...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1971.tb09932.x
更新日期：1971-01-01 00:00:00
abstract：:1. The purpose of this study was to develop and validate an integrated pharmacokinetic-pharmacodynamic model for the anti-lipolytic effects of the adenosine A1-receptor agonist N6-(p-sulphophenyl)adenosine (SPA). Tissue selectivity of SPA was investigated by quantification of haemodynamic and anti-lipolytic effects in...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0701412
更新日期：1997-10-01 00:00:00
abstract：:1. Electrical stimulation of the mid-brain raphé in anaesthetized adrenalectomized rats produced a significant decrease in the forebrain content of 5-hydroxytryptamine (5-HT) and an increase in the concentration of 5-hydroxyindol-3-ylacetic acid (5-HIAA).2. Stimulation of peripheral sensory nerves did not influence ei...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1970.tb09550.x
更新日期：1970-05-01 00:00:00
abstract：:The effects of pretreatment with 16,16-dimethyl prostaglandin E2 (DmPGE2) on the recovery of gastric mucosal 'barrier' parameters after ethanol-induced damage were studied using an ex vivo chamber preparation in the rat. DmPGE2 (4-40 micrograms kg-1) significantly reduced the extent of haemorrhagic damage to the gastr...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1985.tb11105.x
更新日期：1985-12-01 00:00:00
abstract：:The prejunctional effects of clonidine and phenylephrine were studied in guinea-pig isolated atria by means of field stimulation of the sympathetic nerve terminals during the cardiac refractory period, in the presence of 1 microM atropine. Clonidine (10-100 nM) produced a dose-dependent decrease in the stimulus-inotro...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1984.tb10102.x
更新日期：1984-03-01 00:00:00
abstract：:1. Diabetic modifications of nicotinic receptor-operated noncontractile Ca2- mobilization observed in the presence of anticholinesterase were investigated by measuring Ca(2+)-aequorin luminescence in diaphragm muscles of mice with diabetes induced by injections of streptozotocin (150 mg kg-1, bolus i.v.) and alloxan (...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1995.tb17227.x
更新日期：1995-11-01 00:00:00
abstract：:1. Effects of morphine sulphate (1.25, 2.5, 5, 10, 20 and 40 mg/kg i.p.) on locomotor activity of male rats were observed for 8 h after single doses in non-tolerant rats. The lower three doses had only an excitatory effect, whereas the higher three doses caused initial depression followed by a delayed excitatory effec...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1972.tb06866.x
更新日期：1972-10-01 00:00:00
abstract：:1. The bovine pulmonary vein contracts in response to acetylcholine, histamine, 5-hydroxytryptamine and bradykinin. The tissue is particularly sensitive to 5-hydroxytryptamine (>0.1 ng/ml). Specific Schultz-Dale reactions were elicited in the pulmonary vein in response to horse plasma.2. The Schultz-Dale reaction is i...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：
更新日期：1971-10-01 00:00:00
abstract：:The effect of nicotine on the bioformation of prostacyclin (PGI2) and of thromboxane (Tx)B2 in rabbit aorta and platelets, respectively, was investigated. Rabbit aortic rings were incubated with [14C]-arachidonic acid ( [14C]-AA) and the incubation products were separated with thin layer chromatography (t.l.c.). Alter...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1984.tb10743.x
更新日期：1984-01-01 00:00:00
abstract：:1. It has been reported that activation of beta-adrenoceptors may be responsible for the hyperaemic response of the hepatic artery to portal venous blood flow reduction. 2. The effect of beta-adrenoceptor blockade on the hepatic arterial response to portal vein occlusion was investigated in 6 anaesthetized dogs. A sid...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1989.tb11825.x
更新日期：1989-02-01 00:00:00
abstract：:Using an in vitro mouse cerebellar slice preparation and whole-cell electrophysiological recording techniques we have characterized Purkinje and basket cell inhibitory post-synaptic currents (IPSCs), and examined the effects of a number of selective peptidergic K+ channel blockers. Spontaneous IPSC amplitude ranged fr...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0702218
更新日期：1998-11-01 00:00:00
abstract：:1. The in vitro hemisected spinal cord from young rat was used to investigate the mechanism of serotoninergic modulation of primary afferent-mediated synaptic transmission in the dorsal horn through activation of the 5-HT3 receptor. 2. Dorsal root-evoked excitatory post-synaptic potentials (DR-EPSPs) were recorded int...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0702592
更新日期：1999-06-01 00:00:00
abstract：:Among the five human 5-HT(4) (h5-HT(4)) receptor isoforms, the h5-HT(4(a)) receptor was studied with a particular emphasis on the molecular interactions involved in ligand binding. For this purpose, we used site-directed mutagenesis of the transmembrane domain. Twelve mutants were constructed with a special focus on t...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0703356
更新日期：2000-06-01 00:00:00
abstract：:1 The effects of presynaptic alpha-adrenoceptor blockade on both the efflux of 3H-transmitter and on the magnitude of the effector response were measured simultaneously in a smooth muscle preparation which responds to field stimulation with noradrenergic beta-receptor-mediated relaxation. 2 In the presence of atropine...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1111/j.1476-5381.1983.tb09386.x
更新日期：1983-01-01 00:00:00
abstract：:1. The present study shows the effects of imipramine in a single dose (10 mg kg(-1), p.o.) or following repeated (14 days, twice a day) treatment on the level of mRNA coding for D2 dopamine receptors in the rat caudate putamen (CP). Repeated administration of imipramine resulted in the increase of the level of mRNA co...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0701681
更新日期：1998-03-01 00:00:00
abstract：:1. This study analyses the neural pathway involved in the modulation of gastric motor function by stress. 2. Systemic administration of low doses of endotoxin (40 microg kg(-1), i.v.) prevents the increase in gastric tone induced by 2-deoxy-D-glucose (200 mg kg(-1), i.v., 2-DG) in urethane-anaesthetized rats. 3. Funct...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0704258
更新日期：2001-09-01 00:00:00
abstract：:1 We previously reported that four lignans isolated from the bark of Machilus thunbergii Sieb. et Zucc. (Lauraceae) protected primary cultures of rat cortical neurons from neurotoxicity induced by glutamate. 2 Among the lignans, meso-dihydroguaiarectic acid (MDGA) and licarin A significantly attenuated glutamate-induc...
journal_title：British journal of pharmacology
pub_type： 杂志文章
doi：10.1038/sj.bjp.0706380
更新日期：2005-11-01 00:00:00
