Abstract：
:Conscious guinea-pigs received platelet activating factor (PAF, 0.03-0.25 microgram/kg, i.v.) and colloidal carbon (C, tracer for microvascular leakage). Fifteen min later the animal was killed and C-labelled microvessels (leakage) were detected in the mucosal/submucosal region of tracheal and bronchial sections. PAF was more potent than LTD4 or histamine. The numbers of leaky vessel were dose-related, arterioles and arteries were not affected, leaky vessels were seen from proximal trachea to intrapulmonary bronchi and carbon was not apparent in the alveolar wall. The effect was quick in onset, of short duration, could be repeated, was not produced by lyso-PAF and was unaffected by thrombocytopaenia (produced by an antiserum). Thrombocytopaenia itself did not cause leaky vessels in the airways nor affect histamine responses. Thus, PAF causes an increase in microvascular leakage in the conducting airways, which is not dependent on platelets. The affected vessels are probably postcapillary bronchial venules and PAF may act via an endothelial cell receptor in these microvessels. This leakage effect of PAF in the airways could contribute to features of bronchial asthma.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
O'Donnell SR,Barnett CJdoi
10.1016/0014-2999(87)90477-8subject
Has Abstractpub_date
1987-06-26 00:00:00pages
385-96issue
3eissn
0014-2999issn
1879-0712pii
0014-2999(87)90477-8journal_volume
138pub_type
杂志文章abstract：:Administration of drugs activating cannabinoid CB(1) receptors in the brain induces memory deficit in rodents, and blockade of these receptors may restore memory capacity in these animals. Central administration of beta-amyloid or beta-amyloid fragments may also lead to memory disturbances. This study was undertaken t...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2003.08.026
更新日期：2003-09-23 00:00:00
abstract：:The effects of clozapine on dopamine neurons projecting to the medial-prefrontal cortex, nuclei accumbens and caudatus were compared. Clozapine (1.25 mg/kg i.v.) maximally stimulated the firing rate and burst activity of dopamine neurons projecting to the medialprefrontal cortex. Much higher doses (5 and 10 mg/kg i.v....
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00934-0
更新日期：1999-02-05 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(86)90543-1
更新日期：1986-01-21 00:00:00
abstract：:Cell-cell interaction through binding of intercellular adhesion molecule (ICAM), B7.1, B7.2 and CD40 on monocytes to their ligands on T-cells plays a number of roles in cytokine . High mobility group box 1 (HMGB1), an abundant and conserved nuclproduction and lymphocyte proliferationear protein, acts in the extracellu...
journal_title：European journal of pharmacology
pub_type： 杂志文章
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更新日期：2013-02-15 00:00:00
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journal_title：European journal of pharmacology
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doi：10.1016/j.ejphar.2006.11.049
更新日期：2007-03-08 00:00:00
abstract：:Mouse myotubes were used to investigate effects of the nondepolarizing neuromuscular blocking drugs pancuronium and atracurium on embryonic-type nicotinic acetylcholine receptor channels. Experiments were performed using patch-clamp techniques in combination with devices for ultra-fast solution exchange at outside--ou...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00836-0
更新日期：2001-02-09 00:00:00
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journal_title：European journal of pharmacology
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doi：10.1016/0014-2999(92)90409-w
更新日期：1992-01-21 00:00:00
abstract：:The origin of the thrombocytopenia and leucopenia induced by protamine-heparin complexes is unknown. We studied the biochemical and cellular effects of protamine (6 mg x kg-1, i.v.) injected after heparin (5 mg x kg-1, i.v.) in New Zealand rabbits. After protamine injection (0.5 min) increases in blood platelet-activa...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(96)00069-6
更新日期：1996-04-29 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)00870-6
更新日期：2001-04-06 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(85)90375-9
更新日期：1985-08-27 00:00:00
abstract：:It has been reported that the antidepressant-like effect of 7-fluoro-1,3-diphenylisoquinoline-1-amine (FDPI) may result from the modulation of brain monoaminergic systems. However, the mechanisms of FDPI action are not fully understood. The aim of this study was to investigate the contribution of N-methyl-d-aspartate ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2016.04.046
更新日期：2016-07-05 00:00:00
abstract：:Earlier studies demonstrated that cytokine production is under the tonic control of noradrenaline. As the level and/or the duration of noradrenaline action is regulated by the noradrenaline transporter (NET), which is also a target of antidepressant treatment, we studied its role in the regulation of the cytokine resp...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(03)01721-7
更新日期：2003-05-23 00:00:00
abstract：:The aim of this study was to determine the effects of 4-(4-bromophenyl)-5-(3-chlorophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (TP4-a new S-triazole derivative possessing anticonvulsant properties in preclinical studies) on the protective action of four different classical antiepileptic drugs (carbamazepine, phenob...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2012.06.023
更新日期：2012-09-05 00:00:00
abstract：:After incubation of rat cortical cell cultures with the human immunodeficiency virus type 1 (HIV-1) coat protein gp120 for 12 h, cells showed fragmentation of DNA at internucleosomal linkers, the characteristic feature of apoptosis. In a quantitative approach, it was determined that the percentage of DNA fragmentation...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(92)90063-2
更新日期：1992-07-01 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(97)01158-8
更新日期：1997-09-17 00:00:00
abstract：:The influence of (+/-)-tamsulosin, a selective alpha 1A-adrenoceptor antagonist, on the positive inotropic effect and the accumulation of inositol phosphates that are induced via alpha 1-adrenoceptors was studied in comparison with that of another alpha 1A-adrenoceptor ligand oxymetazoline in the rabbit ventricular my...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(96)00442-6
更新日期：1996-10-03 00:00:00
abstract：:Using the ex vivo chick embryo retina to study the efficacy of antagonists in blocking the excitotoxic effects of excitatory amino acid agonists, we previously identified phencyclidine as the most powerful known anti-excitotoxin. Here we show that MK-801 is 5 times more powerful than phencyclidine as an anti-excitotox...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90552-8
更新日期：1987-09-23 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00508-0
更新日期：1995-12-27 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90977-p
更新日期：1993-08-03 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
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更新日期：2011-07-01 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.12.008
更新日期：2008-03-10 00:00:00
abstract：:Androgens relax several smooth muscles, including the airways. They also contract ileum and myocardium via nongenomic mechanisms. To find out whether androgens modulate airway smooth muscles in different species and further assess their mechanism of action, regarding the role of beta-adrenoceptors, polyamines and extr...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.10.039
更新日期：2008-12-28 00:00:00
abstract：:The role of the glutamate 'metabotropic' receptor was investigated in an experimental model of focal ischaemia-induced neurodegeneration. The metabotropic agonist, trans-1-amino cyclopentane-1,3-dicarboxylic acid (t-ACPD, 20 mg/kg i.p.), was administered to mice immediately after middle cerebral artery occlusion (MCAO...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90382-e
更新日期：1992-06-05 00:00:00
abstract：:Perhexiline, a "metabolic" anti-anginal agent currently under investigation in management of congestive heart failure and acute coronary syndromes improves platelet nitric oxide responsiveness in patients with impaired responsiveness. The current study investigated possible interactions between perhexiline and the nit...
journal_title：European journal of pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ejphar.2007.01.001
更新日期：2007-03-29 00:00:00
abstract：:Several contractile responses of longitudinal muscles of the guinea-pig digestive tract to exogenously applied ATP (10-300 micrometer), including "rebound" contractions, were inhibited by indomethacin (3-20 micrometer) or polyphloretin phosphate (10-100 microgram/ml). Relaxations to ATP in stomach and large intestina...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(77)90090-5
更新日期：1977-09-15 00:00:00
abstract：:Recent successes as a pharmacological adjunct to exposure therapy has focused attention on the therapeutic potential of the glycine(B) receptor partial agonist, D-cycloserine (DCS), in certain clinical anxiety disorders. Although widely believed to reflect a facilitation of extinction learning, previous research with ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2010.08.005
更新日期：2010-11-10 00:00:00
abstract：:We investigated the effects of an L-type and N-type Ca(2+) channel blocker, cilnidipine, on neurally mediated chronotropic responses to clarify the anti-autonomic profile of cilnidipine in anesthetized dogs. Pretreatment with cilnidipine (0.3, 1.0 and 3.0 microg/kg, i.v.), which decreased mean blood pressure by 5 to 3...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)00738-5
更新日期：2001-02-09 00:00:00
abstract：:The renal vascular effects of dopaminomimetics were studied in the isolated perfused rat kidney after pretreatment with 10(-5) M phenoxybenzamine and 10(-5) M sotalol and after contraction of the vascular bed with prostaglandin F2 alpha (10(-7) to 3 x 10(-6) M). Under these conditions, our criterion for vascular dopam...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(82)90157-1
更新日期：1982-10-15 00:00:00
abstract：:GABAA and GABAC receptors were studied on cultured or freshly isolated rat retinal bipolar cells. The cells displayed GABA-induced whole-cell currents, which were only partially blocked by high concentrations (100 microM) of the GABAA receptor antagonist bicuculline. The bicuculline-resistant (GABAC) component was ins...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(94)90014-0
更新日期：1994-12-15 00:00:00
abstract：:Phenylalanine and tyrosine reportedly decrease blood pressure in conscious restrained rats. However, tyrosine has recently been found to increase blood pressure in anesthetized animals, questioning the generality of findings obtained in restrained animals. The present study therefore evaluated the effects of phenylala...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90494-9
更新日期：1989-01-31 00:00:00
