Abstract:
:We investigated the effects of histamine on the motility of isolated segments from canine ureters and characterized pharmacologically the histamine receptors involved. We also evaluated the effects of various autacoids (5-HT, carbachol, noradrenaline, thromboxane, prostaglandin F2alpha) on the motility of canine ureters. Histamine as well as the H1 receptor agonist 2-(2-pyridyl)ethylamine elicited a concentration-dependent contraction. This contractile response was antagonized by dimethindene, causing a rightward shift (pA2 8.30) and a reduction of the slope and the maximal effect (pD'2 6.01) of the concentration-response curve. The histamine H2 receptor antagonist cimetidine in a concentration of 10(-5) mol/l was ineffective concerning the concentration-response curve for histamine. After precontraction of the ureter segments (5-HT, carbachol, prostaglandin F2alpha), a concentration-dependent relaxant effect was evaluated in the presence of histamine or the histamine H2 receptor agonist impromidine. The histamine H2 receptor antagonist cimetidine attenuated the relaxant response, causing a rightward shift of the concentration-response curve. All autacoids except thromboxane were capable of increasing contractility in canine ureters. Comparing the absolute contractile force in the presence of prostaglandin F2alpha, 5-HT, carbachol, noradrenaline and potassium, we found that histamine exhibits the most marked effect on this parameter in the canine ureter. It is concluded that there are two types of histamine receptors modulating contractile activity in the canine ureter: histamine H1 receptors, which mediate contraction, and histamine H2 receptors, which mediate relaxation (in the precontracted tissue).
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Dodel RC,Hafner D,Borchard Udoi
10.1016/s0014-2999(96)00765-0subject
Has Abstractpub_date
1996-12-30 00:00:00pages
395-402issue
2-3eissn
0014-2999issn
1879-0712pii
S0014-2999(96)00765-0journal_volume
318pub_type
杂志文章abstract::Recent reports of increased diabetes risk have raised concerns regarding the use of statins. The present study was therefore planned to clarify whether atorvastatin can prevent diabetes development in a rat model of type 2 diabetes mellitus. Eight week old male Wistar rats were randomized into three groups (n = 12 eac...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2014.01.069
更新日期:2014-04-05 00:00:00
abstract::Sham and electrolytic lesions of the dorsal, median, and dorsal + median raphe nuclei were made in different groups of rats. One week later, daily oral treatment with ethanol (5 g/kg p.o. for 25 days) was started. This treatment produced tolerance to the hypothermic and motor impairing (moving belt test) effects of et...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(82)90079-6
更新日期:1982-06-04 00:00:00
abstract::The aim of the present study was to investigate the contribution of extracellular signal regulated kinase-1/2 (ERK1/2) to pulmonary artery contraction in response to 4-aminopyridione (4-AP), an inhibitor of a voltage-gated K(+) channels that regulate pulmonary vascular tone. Pulmonary artery rings 1-1.5 mm in diameter...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2007.04.042
更新日期:2007-08-13 00:00:00
abstract::We have investigated the possible mechanisms underlying the antihyperglycaemic effect of the imidazoline derivative S-22068. In vitro, in the presence of 5 mmol/l glucose, S-22068 (100 micromol/l) induced a significant and sustained increase in insulin secretion from isolated, perifused, rat islets and a marked sensit...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(99)00395-7
更新日期:1999-07-14 00:00:00
abstract::Morphine-induced analgesia, and the development of morphine-induced tolerance and dependence was determined in mice which had drunk caffeinated water (1 mg/ml) for 14 days or in mice which had received (-)-N6-(phenylisopropyl)-adenosine (PIA) 1 mg/kg i.p. for 14 days. Analgesia was assessed by the tail flick assay. Th...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(86)90635-7
更新日期:1986-01-14 00:00:00
abstract::Human adipose tissue-derived stromal cells (hADSCs) demonstrate promising potential in various clinical applications, including the transplantation to regenerate injured or degenerative tissues. The migration of engrafted hADSCs to the correct site of injure is essential for the curative effect of stem cell therapy. W...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2008.09.030
更新日期:2008-12-03 00:00:00
abstract::Pulmonary hypertension is a progressive disease of various origins that is associated with right ventricular dysfunction. In the present study, the protective effect of diosgenin was investigated in monocrotaline-induced pulmonary hypertension in rats. Pulmonary hypertension was induced by a single subcutaneous inject...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2014.07.026
更新日期:2014-10-05 00:00:00
abstract::The activation of C-fibers in the airways induces coughing, mucus production and bronchoconstriction, which are also symptoms of airway diseases. In this study, we evaluated the role of the C-fibers and the TRPV1 (transient receptor potential vanilloid 1) receptor in an experimental mouse model of allergic airway infl...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2011.04.027
更新日期:2011-07-15 00:00:00
abstract::Anaphylaxis during general anaesthesia is a significant clinical challenge for anaesthesiologists. Approximately 50% of perioperative anaphylaxis cases lack the presence of specific IgE antibodies. Mas-related G-protein coupled receptor X2 (MRGPRX2) in humans and its mouse orthologue Mas-related G-protein coupled rece...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2020.173104
更新日期:2020-07-05 00:00:00
abstract::Organ hypertrophy is often found to be associated with changes in the expression of caveolins and altered density of caveolae in the membrane. A plethora of signalling intermediaries are associated with caveolae and loss of caveolae has profound effects on contractility of the urinary bladder. We hypothesized that smo...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2010.09.050
更新日期:2010-12-15 00:00:00
abstract::Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease in the world. Despite the impact of this pathology in the population, nowadays there is no specific treatment for this disease, focusing its treatment on risks factors. However, it is imperative the existence of a specific treatment, due to this...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2019.172699
更新日期:2019-11-15 00:00:00
abstract::Spontaneous electrical and mechanical activity was observed when single myocytes from guinea-pig hearts were loaded with sodium by direct intracellular application. Transient membrane depolarizations were found to be due to spontaneous inward currents (Isp). Both Isp and spontaneous contractions were abolished by 2',3...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(87)90642-x
更新日期:1987-08-04 00:00:00
abstract::We have characterized the rat prostanoid EP1, EP2, EP3alpha and EP4 receptor subtypes cloned from spleen, hepatocyte and/or kidney cDNA libraries. Comparison of the deduced amino acid sequences of the rat EP receptors with their respective homologues from mouse and human showed 91% to 98% and 82% to 89% identity, resp...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(97)01383-6
更新日期:1997-12-11 00:00:00
abstract::Specific binding of [3H]imipramine to its recognition sites in frontal cortex and levels of serotonin (5-HT), 5-hydroxyindoleacetic acid (5-HIAA) and norepinephrine (NE) as well as uptake of serotonin by crude synaptosomal (P2) fraction were determined in a group of rats chronically (for 21 days) treated with differen...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(87)90429-8
更新日期:1987-06-19 00:00:00
abstract::Toluene diisocyanate (TDI)-induced asthma is a frequent occupational airway disease. To determine whether a calibrated dosage of oral slow-release theophylline inhibits asthmatic reactions and the associated increase of airway responsiveness to methacholine induced by TDI, we examined six asthmatic subjects who develo...
journal_title:European journal of pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0926-6917(92)90010-a
更新日期:1992-05-01 00:00:00
abstract::The maximal pressor effect induced by DOI in the pithed rat was smaller than that induced by 5-HT, suggesting partial agonistic properties of DOI. DOI shifted the dose-pressor response curve of 5-HT to the right. It is concluded that, in addition to its 5-HT2 agonistic properties, DOI also possesses 5-HT2 antagonistic...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(89)90143-x
更新日期:1989-10-24 00:00:00
abstract::The effect of resveratrol, an aryl hydrocarbon receptor antagonist, on the teratogenicity induced by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) was investigated. Pregnant C57BL/6J mice were orally administered resveratrol (50 mg/kg) for 6 consecutive days, from gestational day (GD) 8 to GD13, followed by an oral chall...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2008.05.033
更新日期:2008-09-04 00:00:00
abstract::The potency of the serotonin 1A (5-HT1A) agonist, 8-hydroxy-2-(di-n-propylamino)tetralin (8-OHDPAT), to induce forepaw treading was increased 20-fold after co-treatment with the 5-HT2 agonist, 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI). DOI induced head twitches which were inhibited by 8-OHDPAT. The putative ...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(89)90178-7
更新日期:1989-02-14 00:00:00
abstract::Venlafaxine is a dual serotonin (5-hydroxytryptamine, 5-HT) and noradrenaline uptake inhibitor which has been claimed to have an onset of antidepressant action which is faster than for other comparable drugs. The effects of venlafaxine on brain 5-HT levels in vivo have not yet been examined. Acute administration of ve...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/s0014-2999(99)00164-8
更新日期:1999-05-07 00:00:00
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 role of nitric oxide (NO) in the vagal cholinergic-mediated cytoprotective effect of intracisternal (i.c.) injection of the stable thyrotropin-releasing hormone (TRH) analog, RX 77368, was investigated in conscious rats. RX 77368 (1.5 ng i.c.) reduced by 88% gastric hemorrhagic lesions induced by oral administrati...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(93)90913-3
更新日期:1993-08-24 00:00:00
abstract::Unlike classical antipsychotic drugs, clozapine activates the hypothalamo-pituitary-adrenal axis and induces a specific regional pattern of Fos-protein expression in the rat forebrain. Whether corticosterone plays a role in the clozapine-induced Fos response is the subject of this study. Some rats were adrenalectomize...
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
abstract::We employed an ex vivo [(3)H]rolipram binding experiment to elucidate the mechanism of emetic activity of phosphodiesterase 4 inhibitors. In Suncus murinus (an insectivore used for evaluation of emesis), emetic potential as well as ability to occupy the high-affinity rolipram binding site in brain membrane fraction in...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2007.06.045
更新日期:2007-11-14 00:00:00
abstract::Recently, down-regulation of vascular endothelial growth factor (VEGF) in the heart was suggested as a potential molecular explanation for the increased risk of cardiovascular morbidity and mortality in patients with diabetes. Increased endothelin-1 production is reported in diabetes. Here, we report that down-regulat...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2006.04.041
更新日期:2006-08-07 00:00:00
abstract::Tricyclic antidepressants have analgesic and sedative effects in addition to their antidepressive properties. We tested the acute analgesic and locomotor inhibitory effects of the tricyclic antidepressant amitriptyline and the alpha(2)-adrenoceptor agonist clonidine in wild-type control and in alpha(2A)-adrenoceptor k...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2003.11.047
更新日期:2004-02-06 00:00:00
abstract::The main purpose of this study was to compare in vitro pharmacological properties of human αCGRP (CGRP) and a recently discovered metabolically stable CGRP analogue, SAX, in isolated rat and human artery segments. In rat, CGRP and SAX induced similar vasodilatory responses in isolated mesenteric artery with the potenc...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2018.04.007
更新日期:2018-06-15 00:00:00
abstract::This study evaluated the contribution of supraspinal opioid receptors to the production of antinociception, in the rat. I.c.v. administration of a selective mu- (DAMGO) and a selective delta- (DPDPE), but not a selective kappa- (U50,488H) opioid receptor agonist, produced significant dose-dependent increase in mechani...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(91)90905-6
更新日期:1991-12-03 00:00:00
abstract::The effect of eliprodil on P-type Ca2+ channels was investigated in acutely dissociated rat Purkinje neurons, by using the whole-cell patch-clamp technique. Eliprodil inhibited in a reversible manner the omega-agatoxin-IVA-sensitive Ba2+ current elicited by step depolarizations from a -80 mV holding voltage (IC50 = 1....
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(95)00511-0
更新日期:1995-12-27 00:00:00
abstract::We investigated the effects of antithrombin, a plasma inhibitor of coagulation factors, in rats with puromycin aminonucleoside-induced nephrosis, which is an experimental model of human nephrotic syndrome. Antithrombin (50 or 500 IU/kg/i.v.) was administered to rats once a day for 10 days immediately after the injecti...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/j.ejphar.2008.04.065
更新日期:2008-07-28 00:00:00
abstract::With the aim of studying the mechanism by which peripherally injected interleukin-1 increases the serum levels of insulin in conscious rats, the effects of indomethacin, a cyclooxygenase inhibitor, on interleukin-1-induced hyperinsulinemia were examined using male Wistar rats implanted with intra-atrial cannulas. The ...
journal_title:European journal of pharmacology
pub_type: 杂志文章
doi:10.1016/0014-2999(91)90089-9
更新日期:1991-01-03 00:00:00