Abstract:
:1 Inactivation of prostaglandin E2 in the pulmonary circulation of rabbits in vivo was measured by comparing the hypotensive effects of doses given intravenously and intra-arterially. 2 Di-4-phloretin phosphate (DPP) 25-100 mug kg-1 min-1 inhibited the inactivation of prostaglandin E2 in the pulmonary circulation. 3 These doses of DPP caused a marked shift to the left of the dose-response curve to prostaglandin E2 given intravenously but did not affect the dose-response curve to prostaglandin E2 given intra-arterially. 4 Inhibition of pulmonary inactivation of prostaglandins E2 and F2alpha caused marked potentiation of their gastrointestinal effects. 5 At these doses antagonism of the hypotensive action of prostaglandin E2 by DPP was seldom seen but the gastrointestinal effect of prostaglandin F2alpha was sometimes antagonized. 6 After treatment with DPP 100 mug kg-1 min-1, high doses of prostaglandin were sometimes lethal.
journal_name
Br J Pharmacoljournal_title
British journal of pharmacologyauthors
Crutchley DJ,Piper PJdoi
10.1111/j.1476-5381.1975.tb07569.xsubject
Has Abstractpub_date
1975-07-01 00:00:00pages
301-7issue
3eissn
0007-1188issn
1476-5381journal_volume
54pub_type
杂志文章abstract::1. This study examined beta-adrenoceptor signalling in cardiac tissues following infusion of isoprenaline (400 microg kg(-1) h(-1)) or vehicle to rats for 14 days. 2. Isoprenaline infusion caused marked hypertrophy of atria and ventricles and reduced the resting rate of spontaneously beating right atria and the basal ...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1038/sj.bjp.0702618
更新日期:1999-06-01 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:BACKGROUND AND PURPOSE:While remifentanil can be used either during labour or fetal surgery, more should be known about the transplacental transfer of this opioid. The aim of this study was to investigate the placental transfer and haemodynamic effects of remifentanil after i.v. administration to pregnant ewes. EXPERI...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.2010.00783.x
更新日期:2010-12-01 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:BACKGROUND AND PURPOSE:Retinoids, through their activation of retinoic acid receptors (RARs) and retinoid X receptors, regulate diverse cellular processes, and pharmacological intervention in their actions has been successful in the treatment of skin disorders and cancers. Despite the many beneficial effects, administr...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/bph.12543
更新日期:2014-03-01 00:00:00
abstract::1. The alpha 2-adrenoceptor binding sites of rabbit spleen and rat kidney, labelled with [3H]-rauwolscine, were characterized using a range of subtype selective ligands. 2. In rabbit spleen, the alpha-2-adrenoceptor binding sites displayed high affinity for oxymetazoline and WB 4101 and low affinity for prazosin and c...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1990.tb12968.x
更新日期:1990-03-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Metabolic and cardiovascular abnormalities accompanying metabolic syndrome, such as obesity, insulin resistance and hypertension, are all associated with endothelial dysfunction and are independent risk factors for erectile dysfunction. The purpose of the present study was to investigate the vasc...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.2010.00825.x
更新日期:2010-09-01 00:00:00
abstract::1. Bicyclic compounds with potential thymoleptic properties (Lu-compounds) have recently become available, and their effects on the membrane pumps of the central and peripheral monoamine neurones have now been tested and compared with those of the tricyclic antidepressant drugs.2. Biochemical and histochemical in vivo...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1969.tb08299.x
更新日期:1969-05-01 00:00:00
abstract::1. Vasorelaxant properties of three nitric oxide (NO) donor drugs (glyceryl trinitrate, sodium nitroprusside and spermine NONOate) in mouse aorta (phenylephrine pre-contracted) were compared with those of endothelium-derived NO (generated with acetylcholine), NO free radical (NO*; NO gas solution) and nitroxyl ion (NO...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1038/sj.bjp.0704269
更新日期:2001-10-01 00:00:00
abstract::1. In isolated detrusor strips from the guinea-pig urinary bladder, contractile responses to electrical field stimulation were mostly mediated by neurally released acetylcholine (ACh) and adenosine 5'-triphosphate (ATP). 2. 5-Hydroxytryptamine (5-HT) produced a concentration-dependent increase in the amplitude of stim...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1995.tb14986.x
更新日期:1995-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Cloxyquin (5-cloroquinolin-8-ol) has been described as an activator of TRESK (K2P 18.1, TWIK-related spinal cord K+ channel) background potassium channel. We have examined the specificity of the drug by testing several K2P channels. We have investigated the mechanism of cloxyquin-mediated TRESK a...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/bph.13821
更新日期:2017-07-01 00:00:00
abstract::1 The spasmogenic and spasmolytic effects of beta-lipotropin (LPH) fragments and one analogue were investigated on different parts of the gastro-intestinal tract of guinea-pig and rat in vitro.2 Changes in muscle tone were observed in colon and rectum and to a lesser extent in jejunum and ileum of both species. Rat co...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1980.tb10849.x
更新日期:1980-04-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The effects of 4-O-methylhonokiol (MH), a constituent of Magnolia officinalis, were investigated on human prostate cancer cells and its mechanism of action elucidated. EXPERIMENTAL APPROACH:The anti-cancer effects of MH were examined in prostate cancer and normal cells. The effects were validate...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.2012.02235.x
更新日期:2013-03-01 00:00:00
abstract::The action of 'selective' agonists and antagonists at muscarinic receptors mediating ileal contractions, and the rate and force of atrial contractions has been assessed. The effect of nicotinic receptor stimulation, catecholamine release and acetylcholinesterase (AChE) action on muscarinic activity has also been asses...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1985.tb09446.x
更新日期:1985-09-01 00:00:00
abstract::GR231118 (also known as 1229U91 and GW1229), a purported Y(1) antagonist and Y(4) agonist was radiolabelled using the chloramine T method. [(125)I]-GR231118 binding reached equilibrium within 10 min at room temperature and remained stable for at least 4 h. Saturation binding experiments showed that [(125)I]-GR231118 b...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1038/sj.bjp.0702983
更新日期:2000-01-01 00:00:00
abstract::An approximate eight fold desensitization of the circular coat of the distal rabbit colon to adenosine 5'-triphosphate (ATP) and adenosine could be achieved by repeatedly exposing the organ to relatively low concentrations (10-100 microM) of these compounds. The desensitization was specific and reversible after prolon...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1982.tb08788.x
更新日期:1982-02-01 00:00:00
abstract::1. The 5-hydroxytryptamine (5-HT)-receptor subtype and affinity for 5-HT was determined in large and small coronary arteries isolated as ring segments from the proximal and distal part of the left coronary artery of 3 month (young) and 2-year old (old) rats. 2. Ketanserin induced a rightward shift of the 5-HT concentr...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1991.tb12167.x
更新日期:1991-01-01 00:00:00
abstract::The properties of the ATPase released during electrical field stimulation (EFS) (8 Hz, 25 s) of the sympathetic nerves of the superfused rabbit isolated vas deferens were investigated. Superfusate collected during EFS rapidly metabolised exogenous ATP (100 microM) and 50% was broken down in 5.67+/-0.65 min. The main m...
journal_title:British journal of pharmacology
pub_type: 杂志文章
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更新日期:2000-11-01 00:00:00
abstract::1. The effects of intracerebroventricular (i.c.v.) and intracisternal (i.c.) administration of corticotrophin releasing factor (CRF) (0.5 nmol kg-1) were examined in conscious rabbits. The effect of opioid receptor antagonism was examined to determine whether the responses to CRF were mediated by endogenous opioid pep...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1991.tb09862.x
更新日期:1991-07-01 00:00:00
abstract::Following the discovery of the first effective antiviral compound (idoxuridine) in 1959, nucleoside analogues, especially acyclovir (ACV) for the treatment of herpesvirus infections, have dominated antiviral therapy for several decades. However, ACV and similar acyclic nucleosides suffer from low aqueous solubility an...
journal_title:British journal of pharmacology
pub_type: 杂志文章,评审
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更新日期:2006-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Although there are many new specific phosphodiesterase inhibitors with anti-inflammatory activity, none have yet reached the market because of their low therapeutic efficacy. Our study was aimed to evaluate the anti-inflammatory and anti-arthritic effect of an established phosphodiesterase inhibi...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.2009.00468.x
更新日期:2009-12-01 00:00:00
abstract:BACKGROUND AND PURPOSE:Cannabidiol has been reported to act as an antagonist at cannabinoid CB1 receptors. We hypothesized that cannabidiol would inhibit cannabinoid agonist activity through negative allosteric modulation of CB1 receptors. EXPERIMENTAL APPROACH:Internalization of CB1 receptors, arrestin2 recruitment, ...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/bph.13250
更新日期:2015-10-01 00:00:00
abstract::1. The influence of angiotensin II (AII) on resting blood pressure and on sympathetic nerve-mediated pressor responses in the pithed rat was investigated either by inhibiting the renin-angiotensin system or by infusing AII. 2. Plasma AII levels in the pithed rat were approximately 20 fold higher than in normotensive r...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1988.tb11759.x
更新日期:1988-12-01 00:00:00
abstract::1. The hyperpolarization of the resting membrane potential, Vm, induced by isoprenaline in the lumbrical muscle fibres of the mouse, was investigated by use of intracellular microelectrodes. 2. In normal Krebs-Henseleit solution (potassium concentration: K+o = 5.7 mM, 'control'), Vm was -7.40 +/- 0.2 mV; lowering K+o ...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1995.tb15940.x
更新日期:1995-12-01 00:00:00
abstract::1. The interactions between N-methyl-D-aspartate (NMDA) and metabotropic glutamate receptors (mGluRs) were investigated in striatal slices, by utilizing intracellular recordings, both in current- and voltage-clamp mode. 2. Bath-application (50 microM) or focal application of NMDA induced a transient membrane depolariz...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1038/sj.bjp.0700999
更新日期:1997-03-01 00:00:00
abstract::1. The use of pharmacological inhibitors of nitric oxide (NO) synthesis to treat patients with septic shock is limited by the observation that they cause a fall in cardiac output in some subjects. The aim of this work was to investigate this fall and to test whether it was reversible by subsequent administration of ni...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1994.tb13089.x
更新日期:1994-06-01 00:00:00
abstract::1 Physiologically, perisinusoidal hepatic stellate cells (HSC) are quiescent and store retinoids. During liver injury and in cell culture, HSC transform into proliferating myofibroblast-like cells that express alpha-smooth muscle actin (alpha-sma) and produce excessive amounts of extracellular matrix. During transform...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1038/sj.bjp.0705303
更新日期:2003-06-01 00:00:00
abstract::1. Calcium entry via neuronal calcium channels is essential for the process of neurotransmission. We investigated the calcium channel subtypes involved in the operation of cardiac autonomic neurotransmission by examining the effects of selective calcium channel blockers on the inotropic responses to electrical field s...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1038/sj.bjp.0702629
更新日期:1999-06-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The development of subtype-selective ligands to inhibit voltage-sensitive sodium channels (VSSCs) has been attempted with the aim of developing therapeutic compounds. Tetrodotoxin (TTX) is a toxin from pufferfish that strongly inhibits VSSCs. Many TTX analogues have been identified from marine an...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/bph.13985
更新日期:2017-11-01 00:00:00
abstract::Sodium transport has been measured in the isolated epithelium from colons of male Sprague-Dawley rats. Sodium transport in colons was induced by pretreating the animals with dexamethasone (6 mg kg-1) which caused the appearance of an amiloride-sensitive short circuit current within a few hours. Forskolin, a diterpene,...
journal_title:British journal of pharmacology
pub_type: 杂志文章
doi:10.1111/j.1476-5381.1983.tb10017.x
更新日期:1983-07-01 00:00:00