Abstract：
:Sodium nitroprusside produced a dose-dependent increase in extracellular levels of cGMP in the cerebellar cortex in vivo. This was independent of nitric oxide synthase activity. The metalloporphyrins zinc-protoporphyrin-IX, tin-protoporphyrin-IX and zinc-deuteroporphyrin-IX,2,4-bis glycol prevented the increase in cGMP in the cerebellar cortex produced by sodium nitroprusside. At high doses, tin-protoporphyrin-IX also decreased the basal extracellular levels of cGMP. These drugs had no effect on nitric oxide synthase activity. We conclude that the neuropharmacological effects of metalloporphyrins may result from their direct inhibition of soluble guanylyl cyclase, rather than from an effect on carbon monoxide synthesis.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Luo D,Vincent SRdoi
10.1016/0922-4106(94)90149-xsubject
Has Abstractpub_date
1994-05-17 00:00:00pages
263-7issue
3eissn
0014-2999issn
1879-0712journal_volume
267pub_type
杂志文章abstract：:The effects of four fluoroquinolones (sparfloxacin, fleroxacin, ofloxacin and levofloxacin) on K(+) currents were investigated in pyramidal neurons acutely isolated from rat hippocampus, to evaluate their relative potencies for inhibiting these channels. Using patch-clamp electrophysiological techniques, we found that...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(03)01316-5
更新日期：2003-02-21 00:00:00
abstract：:The aim of the study was to assess which tachykinin receptors mediate the contractile response in the guinea-pig isolated bronchi. Experiments with natural tachykinins and receptor-selective tachykinin agonists were performed in the absence or presence of peptidase inhibitors and in bronchi pretreated with phenoxybenz...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90517-t
更新日期：1991-05-17 00:00:00
abstract：:In rats, a selective inhibition for 3 weeks of monoamineoxydase (MAO) type B elicited by daily doses of pargyline (2.5 mumol/kg) or (-)-deprenyl (1 mumol/kg) attenuated the NE dependent stimulation of cortical adenylate cyclase and reduced the number of brain recognition sites for beta-adrenergic receptor ligands. Sim...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(83)90614-3
更新日期：1983-04-22 00:00:00
abstract：:Effects of the alpha2-adrenoceptor antagonist yohimbine on the antinociception produced by a low dose of naloxone were examined in a rat model of carrageenan-induced inflammation. In rats receiving saline prior to naloxone injection, the low dose of naloxone (5 microg/kg, i.p.) significantly prolonged paw withdrawal l...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00151-4
更新日期：1998-05-08 00:00:00
abstract：:Guanosine 3',5'-cyclic monophosphate (cGMP) has an important role in regulating vascular smooth muscle tone. We examined whether mRNA for multidrug resistance protein (MRP) 4 and MRP5, which were recently identified as ATP-dependent export pumps for cyclic nucleotides, is expressed in the porcine coronary and pulmonar...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(03)01552-8
更新日期：2003-04-11 00:00:00
abstract：:The present studies were conducted to investigate the role of 5-HT2C and 5-HT2B receptors in the generation of pentylenetetrazol and electroshock-evoked seizures. The 5-HT2C/2B receptor-preferring agonist 1-(m-chlorophenyl)-piperazine (mCPP; 2.5-7 mg/kg i.p.) weakly elevated seizure threshold in the mouse (but not the...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00621-9
更新日期：1998-10-16 00:00:00
abstract：:In the attempt to find a pharmacological treatment for the spasm of the internal anal sphincter, usually associated with anal fissures, the activity of caerulein on human internal and sphincter was investigated in vitro and in vivo. In the isolated distal part of the internal and sphincter, caerulein (0.61 microM) dep...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(83)90337-0
更新日期：1983-02-18 00:00:00
abstract：:In the Brattleboro rat with diabetes insipidus vasopressin V2 receptor mRNA and the mRNA of various adenylyl cyclase (AC) isoforms are moderately reduced compared with those of normal rats. In the present study renal vasopressin V2 receptor mRNA was modestly higher (by 34%), as was expression of AC 5, 6 and 9 mRNAs (u...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(97)01461-1
更新日期：1998-01-02 00:00:00
abstract：:The effect of the non-selective antagonist of excitatory amino acid receptors kynurenic acid (50, 100 and 150 mg/kg, i.p.) on morphine-derived reward was studied in rats. Kynurenic acid dose dependently blocked the acquisition of morphine conditioned place preference when injected before conditioning. The expression o...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)00462-5
更新日期：1994-11-03 00:00:00
abstract：:To investigate the mechanism underlying sulpiride-induced catalepsy, we simultaneously examined cataleptic behavior and the kinetics of the dopamine receptor antagonist, sulpiride of dopamine, and the dopamine metabolite 3,4-dihydroxyphenylacetic acid (DOPAC), using in vivo voltammetry. After intrastriatal administrat...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(97)00140-4
更新日期：1997-05-12 00:00:00
abstract：:Sanguinarine is a natural isoquinoline alkaloid derived from the root of Sanguinaria canadensis and from other poppy fumaria species, and is known to have a broad spectrum of pharmacological properties. Here we have found that sanguinarine, at low micromolar concentrations, showed a remarkably rapid killing activity a...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2013.02.035
更新日期：2013-04-05 00:00:00
abstract：:The anti-ulcer activity of calcitonin gene-related peptide (CGRP) was inhibited, in a dose-dependent manner, by pretreatment with NG-nitro-L-arginine methyl ester, an inhibitor of nitric oxide synthase. Our results suggest that endogenous nitric oxide is involved in the anti-ulcer activity of CGRP. ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90252-6
更新日期：1994-04-21 00:00:00
abstract：:Intraperitoneal and intraventricular injections of N,N-dimethyl-p-methoxyphenyl ethylamine (PMPEA) decreased blood pressure in conscious DOCA-saline hypertensive rats. Bilateral injection of this agent into the nucleus tractus solitarii (NTS) of anaesthetized normotensive rats also caused a decrease in blood pressure....
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(82)90472-1
更新日期：1982-11-19 00:00:00
abstract：:Acute (-)-nicotine administration (0.4 and 0.8 mg/kg s.c.) produced a regionally specific increase in the rate of catecholamine synthesis in the rat nucleus accumbens, hypothalamus and hippocampus but not elsewhere, including the caudate-putamen. In all regions rates of 5-hydroxytryptamine synthesis were unaffected. (...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90440-8
更新日期：1989-08-29 00:00:00
abstract：:We have investigated the cardiac and pressor responses to (±)-ephedrine and (-)-ephedrine in pentobarbitone anaesthetized male wistar rats. The tachycardiac responses to (±)- and (-)-ephedrine were similar, but pressor responses to (-)-ephedrine (10 mg/kg) were significantly greater than those to (±)-ephedrine, and fo...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2018.02.021
更新日期：2018-04-15 00:00:00
abstract：:The effects of procaine, mepivacaine and phenylbutazone on pain perception in the equine were studied using two behavioral assays of nociception; the thermal evoked hoof withdrawal reflex and skin twitch reflex. Pain perception threshold was measured as the latency from onset of thermal stimuli to reflex withdrawal of...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(84)90088-8
更新日期：1984-12-15 00:00:00
abstract：:The spontaneous myogenic activity of the isolated rat portal vein was inhibited by atrial natriuretic factor or by sodium nitroprusside. These compounds were not effective on the tone induced by PAF-acether or carbachol. 8-Bromo cyclic GMP and dibutyryl cyclic AMP inhibited myogenic activity and reduced the agonist-in...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90239-7
更新日期：1988-01-12 00:00:00
abstract：:The prevention of the decrease in neostriatal tryptophan hydroxylase (TPH) activity with a single dose of methamphetamine (MA) was attempted by lesioning the nigrostriatal dopaminergic projections with bilateral nigral injections of 6-hydroxydopamine (6-OHDA). The rats were injected with MA (10 mg/kg) 11 days later, a...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90616-9
更新日期：1987-03-17 00:00:00
abstract：:Macrophages play important roles in the healing and remodeling of cardiac tissues after myocardial ischemia/reperfusion (MI/R) injury. Here we investigated the potential effects of salvianolic acid B (SalB), one of the abundant and bioactive compounds extracted from Chinese herb Salvia Miltiorrhiza (Danshen), on macro...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2020.172916
更新日期：2020-03-15 00:00:00
abstract：:Herein, we report an extensive investigation of the neuroprotective effects of the compound (Z)-alpha-[2-thiazol-2-yl)imidazol-4-yl]-N-tert-butylnitrone (S34176) and the prototypic nitrone alpha-phenyl-N-tert-butylnitrone (PBN), in different in vivo paradigms of neuronal degeneration. Administration of S34176 (75 mg/k...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.01.043
更新日期：2005-03-28 00:00:00
abstract：:We assessed the effects of active site-directed, fibrinogen recognition exosite (FRE)-directed and bifunctional thrombin inhibitors, on shear-induced platelet reactivity (adhesion/aggregation) and dynamic coagulation (coagulation of flowing blood). An in vitro test for shear-induced haemostatic plug formation and dyna...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00655-5
更新日期：2000-10-13 00:00:00
abstract：:The effects of 1 mM L-cysteine on sodium nitrite-, 3-morpholinosydnonimine (SIN-1)- and acetylcholine-induced relaxation and cyclic GMP accumulation were studied in isolated noradrenaline-precontracted rat mesenteric arterial rings. L-Cysteine augmented the relaxation and cyclic GMP increase induced by sodium nitrate ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90133-o
更新日期：1992-04-22 00:00:00
abstract：:In this study the desensitizing power of increasing concentrations of resiniferatoxin applied topically to the bladder mucosa, and the irritating properties of the most effective desensitizing dose, were determined with the aid of the spinal expression of the proto-oncogene c-fos. Desensitization was assessed by the d...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00451-3
更新日期：1999-07-28 00:00:00
abstract：:The aim of the research was to characterize muscarinic receptors of bovine ciliary muscle and to investigate the desensitization process. The role of protein kinase C was analyzed. The results show that muscarinic receptors of bovine ciliary muscle have the pharmacological characteristics of the M3 subtype. Acute expo...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(97)10122-4
更新日期：1997-07-09 00:00:00
abstract：:Pyrrolidine dithiocarbamate (PDTC) can form a complex with metal ions and then act as a proteasome inhibitor, which leads to tumor cell apoptosis, and could therefore be developed as an anticancer agent. In our efforts to find factors that induce PDTC-mediated apoptosis of tumor cells, the effect of serum concentratio...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2010.09.048
更新日期：2010-12-15 00:00:00
abstract：:The influence of degradation by peptidases on concentration-response relationships for peptide agonists of the tachykinin and bombesin-like families was investigated. The combined presence of three peptidase inhibitors, phosphoramidon (1 microM), captopril (1 microM) and bestatin (100 microM), had no significant effec...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90520-g
更新日期：1990-02-06 00:00:00
abstract：:This study evaluated the coronary dopamine receptors by using the dopamine D1 receptor agonist fenoldopam, dopamine D2 receptor agonist propylbutyldopamine, and their selective antagonists SCH23390 and domperidone. Left circumflex coronary flow (CF), coronary perfusion pressure at constant flow, left ventricular hemod...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)94126-i
更新日期：1990-11-06 00:00:00
abstract：:GABAA receptors are pentameric chloride ion channels that are opened by GABA. We have screened a cell line derived from human glioblastoma, U3047MG, for expression of GABAA receptor subunit isoforms and formation of functional ion channels. We identified GABAA receptors subunit α2, α3, α5, β1, β2, β3, δ, γ3, π, and θ ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.12.001
更新日期：2015-02-05 00:00:00
abstract：:Oxidative stress plays an important role in inflammatory process of celiac disease. We have studied the effect of the lycopene, quercetin and tyrosol natural antioxidants on the inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) gene expression in RAW 264.7 macrophages stimulated by gliadin in associa...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.03.051
更新日期：2007-07-02 00:00:00
abstract：:Homovanillic acid (HVA) was measured in rat caudate and pre-frontal cortex 3 h following a single dose of a variety of neuroleptics. Thioridazine, haloperidol, fluphenazine, and metoclopramide increased HVA levels in caudate more than in pre-frontal cortex; whereas sulpiride and clozapine produced greater increases in...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(84)90438-2
更新日期：1984-03-16 00:00:00
