Abstract：
:The effects of chronic neuroleptic treatment on the concentrations of homovanillic acid (HVA) and 3,4-dihydroxy-phenylacetic acid (DOPAC) in the rat substantia nigra (SN) and corpus striatum (CS) were determined. Acute haloperidol and alpha-flupenthixol increased HVA and DOPAC in the CS but after chronic treatment no significant change was found compared to controls. In the SN, on the contrary, acute haloperidol reduced and subsequently increased HVA and DOPAC and alpha-flupenthixol had no significant effect, whereas chronic treatment with either neuroleptic increased the levels of the metabolites. Acute apomorphine reduced HVA and DOPAC in CS, but increased first and subsequently decreased the levels of the metabolites in the SN. Acute amphetamine reduced both metabolites in SN and DOPAC in CS, whereas striatal HVA was unaffected. The different or even reciprocal effects on DA release may suggest an independent local action of these drugs in CS and SN.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Nicolaou NMdoi
10.1016/0014-2999(80)90035-7subject
Has Abstractpub_date
1980-06-13 00:00:00pages
123-32issue
2-3eissn
0014-2999issn
1879-0712pii
0014-2999(80)90035-7journal_volume
64pub_type
杂志文章abstract：:The pre- and postsynaptic actions of the calcium entry facilitator Bay K 8644 were investigated in the rat isolated vas deferens. Bay K 8644 had no presynaptic effect on adrenergic neurotransmission in the epididymal portion. Bay K 8644 and alpha 1-adrenoceptor agonists potentiated, and the calcium entry blocker nifed...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(84)90414-x
更新日期：1984-09-17 00:00:00
abstract：:Resveratrol reportedly promotes the improvement of cardiac dysfunction and other cardiovascular diseases. Studies demonstrate resveratrol exhibits a set of benefits, including anti-oxidative property, anti-apoptosis and anti-inflammation. However, the molecular mediators of resveratrol-induced cardiac benefits are sti...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2018.10.018
更新日期：2019-01-15 00:00:00
abstract：:Hruska et al. (1980) reported that hypophysectomy prevented the onset of dopamine receptor supersensitivity. We have repeated this investigation administering haloperidol (0.75 mg/day) or sulpiride (2 X 15 mg/day) or saline for 17 days, followed by a 3 day drug washout period, to sham-operated or hypophysectomised rat...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(81)90006-6
更新日期：1981-11-19 00:00:00
abstract：:We have previously reported that 15-hydroxyeicosatetraenoic acid (15-HETE), a metabolite of arachidonic acid by 15-lipoxygenase, causes pulmonary vasoconstriction via increasing the intracellular Ca(2+) concentration ([Ca(2+)]i). However, the multiple sources of Ca(2+) that contribute to Ca(2+) elevation during and af...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.10.028
更新日期：2008-12-28 00:00:00
abstract：:The inhibitory effects of a hypotensive agent, cadralazine and its metabolite, ISF-2405, on the level of cytosolic Ca2+ ([Ca2+]cyt) and on contractions were examined in isolated vascular smooth muscle. Cadralazine slightly inhibited the transient norepinephrine-induced contraction in rabbit aorta and canine femoral, r...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90472-i
更新日期：1990-03-20 00:00:00
abstract：:Although carbetapentane produces skin (peripheral) infiltrative analgesia, the underlying mechanism of carbetapentane in local anesthesia is not well understood. The purpose of the study was to examine the effect of carbetapentane on voltage-gated Na(+) channels and its efficacy on spinal (central) anesthesia. We eval...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2013.07.013
更新日期：2013-08-15 00:00:00
abstract：:Bitter taste receptors (Tas2rs) initiate a bitter taste signaling involving the activation of taste-specific G protein gustducin and phosphodiesterases (PDEs); it leads to the decrease of cytosolic level of cyclic adenosine monophosphate (cAMP) in taste cells. Recent studies have identified the expression of Tas2rs in...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2020.172951
更新日期：2020-04-05 00:00:00
abstract：:Incubated tissue slices from different regions of the rat brain contained cyclic guanosine 3',5'-monophosphate (cyclic GMP) in the following descending order of content: cerebellum greater than hypothalamus greater than striatum greater than thalamusmidbrain greater than brain stem greater that hippocampus greater tha...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(75)90308-8
更新日期：1975-06-01 00:00:00
abstract：:The pharmacological properties of rat and human 5-HT3 receptors expressed in Xenopus oocytes were assessed using a two-electrode voltage clamp technique. Meta-chlorophenylbiguanide (mCPBG), a 5-HT3 receptor-selective agonist, elicited typical current responses in both rat and human 5-HT3 receptor-expressing oocytes. H...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00058-8
更新日期：1999-03-12 00:00:00
abstract：:WIN 64338 (phosphonium, [[4-[[2-[[bis(cyclohexylamino) methylene] amino]-3-(2-naphthalenyl) 1-oxopropyl]amino]-phenyl]- tributyl, chloride, monohydrochloride) is the first potent nonpeptide competitive bradykinin B2 receptor antagonist as shown in classical pharmacological preparations with no activity in the rabbit a...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(94)90017-5
更新日期：1994-12-15 00:00:00
abstract：:Nitric oxide (10 ppm) inhaled by pigs before or during endotoxin shock induced by an infusion of E. coli lipopolysaccharide. Nitric oxide inhalation selectively attenuated pulmonary hypertension during endotoxin infusion without influencing mean arterial blood pressure and cardiac output. Upon cessation of nitric oxid...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90352-i
更新日期：1993-03-16 00:00:00
abstract：:The effect of several pyrolysate mutagens on the benzodiazepine and GABA receptors was investigated. Of amino-gamma-carbolines, Trp-P-1 antagonized the suppressive effect of diazepam on the pentylenetetrazol-induced convulsions and death, whereas Trp-P-2 by itself precipitated seizures and death in male mice. Both Trp...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(84)90106-7
更新日期：1984-02-10 00:00:00
abstract：:Cannabinoid drugs differ in their rank order of potency to produce analgesia versus other central nervous system effects. We propose that these differences are due to unique agonist-bound cannabinoid CB1 receptor conformations that exhibit different affinities for individual subsets of intracellular signal transductio...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.11.053
更新日期：2008-02-26 00:00:00
abstract：:This study presents a direct comparison of the ligand binding and signaling profiles of a mammalian and non-mammalian mu opioid receptor. Opioid ligand binding and agonist potencies were determined for an amphibian (Rana pipiens) mu opioid receptor (rpMOR) and the human mu opioid receptor (hMOR) in transfected, intact...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.09.043
更新日期：2008-12-03 00:00:00
abstract：:Administration of dihydrocapsaicin to rats resulted in a dose-dependent (0.5-10 mg/kg s.c.) hypothermia. Dihydrocapsaicin was approximately 65% more effective in producing hypothermia than capsaicin. Desensitization and cross-tolerance occurred to the hypothermic effects of both capsaicin and dihydrocapsaicin. Repeate...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(82)90263-1
更新日期：1982-09-24 00:00:00
abstract：:Nitric oxide synthases (NOS) and cyclooxygenase-2 (COX-2) are important enzymes involved in ulcer healing but interactions between them have not been clearly defined. The aim of this study was to investigate the effects of selective or non-selective inhibition of NOS on the expression and activity of COX-2 during heal...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.12.088
更新日期：2006-05-01 00:00:00
abstract：:Apomorphine-induced locomotor stimulation was investigated in the developing rat following injection with 6-hydroxydopa at birth. Treatment with 6-hydroxydopa potentiated locomotor responsiveness to apomorphine in the 20-day-old rat. The 6-hydroxydopa-treated animal at 30 days, however, was less sensitive to the drug ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(78)90012-2
更新日期：1978-07-15 00:00:00
abstract：:Extracellular diadenosine polyphosphates (ApnA) are recently considered as an endogenous signaling compounds with transmitter-like activity which present in numerous tissues, including heart. It has been demonstrated previously that extracellular ApnA cause alteration of the heart functioning via purine receptors in d...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2017.12.024
更新日期：2018-02-05 00:00:00
abstract：:Defibrotide, a polydeoxyribonucleotide obtained from mammalian lungs, reduced in a dose-dependent fashion the ischemic contracture due to low perfusion (0.2 ml/min) of isovolumic left heart of rabbit and abolished the irregular rhythm of the heart, thereby restoring the cardiomechanical activity upon reperfusion (20 m...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90687-x
更新日期：1987-03-31 00:00:00
abstract：:We recently reported that wood smoke inhalation initially (within 5 min) causes airway injury and subsequently produces both airway and parenchymal injury after a delay (within 2 h). In this study, we investigated the mediator mechanisms of this delayed smoke-induced lung injury in 126 anesthetized and artificially ve...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)01184-0
更新日期：2001-08-10 00:00:00
abstract：:Clomipramine is a tricyclic antidepressant for psychiatric disorders that can induce QT prolongation, which may lead to torsades de pointes. Since blockade of cardiac human ether-a-go-go-related gene (hERG) channels is an important cause of acquired long QT syndrome, we investigated the acute effects of clomipramine o...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.06.094
更新日期：2008-09-11 00:00:00
abstract：:The effects of paxilline, a mycotoxin, on whole-cell outward currents from freshly isolated cells of the rat mesenteric artery were studied. Paxilline inhibited a component of the outward current that was also sensitive to iberiotoxin. Inhibition could be observed at a concentration of 10 nM and complete inhibition of...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00188-0
更新日期：1999-05-07 00:00:00
abstract：:Transcriptional activation of the human CYP1A1 gene (coding for cytochrome P450 1A1) is mediated by the aryl hydrocarbon receptor. In the present study we have examined interaction of the ginsenoside Rg1 and Rb1 with the carcinogen activation pathway mediated by the aryl hydrocarbon receptor in HepG2 cells. RT-PCR was...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.10.057
更新日期：2008-12-28 00:00:00
abstract：:The effect of treatment with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) on juvenile (6-8 months), young adult (2-4 years) and aged (8-10 years) common marmosets were compared. Juvenile marmosets were more resistant to the actions of MPTP and required a greater cumulative dose over a longer period to induce th...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90800-w
更新日期：1993-01-12 00:00:00
abstract：:The effect of the antipsychotic peptide, Org 5878 (desenkephalin-gamma-endorphin, beta-endorphin-(6-17), on local cerebral glucose utilization was studied in freely moving male Wistar rats. Org 5878 (20 micrograms/kg, i.v.) or saline were given acutely and local cerebral glucose utilization was measured in 116 brain s...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90430-5
更新日期：1989-11-14 00:00:00
abstract：:In urethane-anesthetized rats the intrathecal (i.t.) injection of 100 nmol anandamide produced a hypotensive effect (-19.3+/-1.6 mm Hg; n=6) that was mimicked by i.t. administration of 0.25 nmol calcitonin gene-related peptide (CGRP; -26.2+/-1.8 mm Hg, n=4). Both effects were antagonized either by the CGRP receptor an...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.12.074
更新日期：2006-02-17 00:00:00
abstract：:It has been reported that Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) can modulate opioid tolerance via its action on learning and memory. In this study, we examine if CaMKII can directly affect opioid tolerance. We found that spinal CaMKII activity was increased in rats tolerant to morphine. In these rats,...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(03)01484-5
更新日期：2003-03-28 00:00:00
abstract：:There is evidence that bovine adrenal chromaffin cells are provided with both dihydropyridine-sensitive and -resistant voltage-sensitive Ca2+ influx pathways. Although recent electrophysiological work indicates that the dihydropyridine-resistant pathway is partially mediated by omega-conotoxin-sensitive and -insensiti...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(93)90151-x
更新日期：1993-02-15 00:00:00
abstract：:Physiological experiments suggest that the angiotensin AT1 receptor type predominates in rat vas deferens. Membrane binding experiments, using 125I-[Sarl,Ile8]angiotensin II, confirm the presence of angiotensin AT1 receptors and the absence of angiotensin AT2 receptors in this tissue. Angiotensin II and the angiotensi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00380-x
更新日期：1998-06-26 00:00:00
abstract：:Many of the physiological responses to nitric oxide (NO) are mediated by cyclic 5'-guanosine monophosphate (cGMP), the intracellular levels of which are regulated by phosphodiesterase type 5 (PDE5). In situations of reduced NO formation, the inhibition of PDE5 by selective inhibitors such as sildenafil could be benefi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2006.04.039
更新日期：2006-08-07 00:00:00
