Abstract：
:Ionic currents and contraction were recorded under voltage clamp conditions in single fibres isolated from rat soleus muscles denervated for more than 20 days. The effects of amphiphiles on depolarization-contraction (d.c.) coupling in Na-free TEA-containing solutions were analyzed. An anionic amphiphile, sodium dodecyl sulfate (1-10 microM), caused a dose-dependent reduction of the contractile response at all amplitudes of depolarization while a cationic amphiphile, dodecyltrimethylamine (1-10 microM), increased the maximum developed tension with a shift in the contractile threshold. A neutral amphiphile, lauryl acetate (20 microM), induced no significant variation. The effects of charged amphiphiles were found to be strongly dependent on the external calcium concentration and on membrane potential. The effect of sodium dodecyl sulfate to decrease tension was reduced or changed to positive inotropy following hyperpolarization of the membrane by, respectively, +10 and +20 mV. In hyperpolarized (+20 mV) cells, dodecyltrimethylamine reduced the amplitude of the contraction. The results demonstrated that changes in Ca-binding properties of surface membrane modified d.c. coupling in denervated slow twitch skeletal muscle.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Léoty C,Noireaud Jdoi
10.1016/0014-2999(89)90878-9subject
Has Abstractpub_date
1989-12-12 00:00:00pages
91-7issue
1eissn
0014-2999issn
1879-0712pii
0014-2999(89)90878-9journal_volume
174pub_type
杂志文章abstract：:The effects of pentobarbitone anaesthesia on the cardiovascular changes induced by centrally administered taurine have been investigated in spontaneously hypertensive (SHR) and normotensive rats. Administration of taurine (100-400 micrograms) into the lateral cerebral ventricle (i.c.v.) of anaesthetised SHR and normot...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90300-2
更新日期：1989-03-21 00:00:00
abstract：:The effect of water immersion stress on the plasma concentration of histamine, in Wistar and mast cell-deficient (Ws/Ws) rats, was investigated. The histamine content of the plasma, skin and gastric mucosa, as well as the level of activity of histidine decarboxylase in the gastric mucosa, were determined by high perfo...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00670-0
更新日期：1998-11-06 00:00:00
abstract：:Currently, little is known about mechanisms underlying passive sensitization-induced nonspecific airway hyperresponsiveness. We sought to determine whether the nonspecific airway hyperresponsiveness observed after passive sensitization involves an increased role of Rho-kinase in airway smooth muscle contraction. In ad...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.12.043
更新日期：2006-02-15 00:00:00
abstract：:Recent evidence suggests that polydatin (PD), a resveratrol glucoside, may have beneficial actions on the cardiac hypertrophy. Therefore, the current study focused on the underlying mechanism of the PD anti-hypertrophic effect in cultured cardiomyocytes and in progression from cardiac hypertrophy to heart failure in v...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.11.012
更新日期：2015-01-05 00:00:00
abstract：:The cardiac and hemodynamic effects of (+/-)-DPI 201-106 (0.6 mg/kg), S(-)-DPI (0.3 mg/kg), R(+)-DPI (0.3 mg/kg), and their vehicle were compared in chronically implanted conscious dogs. (+/-)-DPI and S(-)-DPI induced qualitatively and quantitatively similar effects, increasing LV dP/dt, cardiac output and stroke volu...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90625-g
更新日期：1990-08-10 00:00:00
abstract：:Morphine and aspartic acid were administered separately and in combination to 80 rats divided into 8 groups. Ten and 20 min following the injections, brain, liver and kidney L-asparaginase activity was determined. Morphine decreased brain and liver L-asparaginase activity and increased that of kidney. Aspartic acid co...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(79)90244-9
更新日期：1979-12-20 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：:Epristeride, a 5alpha-reductase inhibitor, decreases prostate size and improves symptoms in men with benign prostatic hyperplasia. However, little is known about the histopathology of the prostate after treatment with epristeride. To study the relationship between apoptosis and the mechanism of epristeride in the trea...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00109-0
更新日期：1999-04-29 00:00:00
abstract：:Potentiation by neuropeptide Y of serotonin (5-HT)-induced vasoconstriction was investigated in porcine coronary artery. 5-HT caused concentration-dependent contraction through 5-HT2A receptors. Neuropeptide Y (30 nM) significantly increased the 5HT-induced contraction by 16+/-5% in arteries with intact endothelium. R...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2006.06.036
更新日期：2006-08-21 00:00:00
abstract：:The correlation between the Phosphoinositide 3-kinase (PI3K) axis and crucial mechanisms involved in the maintenance of the neoplastic nature of multiple myeloma (MM) has recently evolved a general agreement that PI3K inhibition-based therapies could construct an exciting perspective for the future treatment strategie...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2018.10.036
更新日期：2019-01-05 00:00:00
abstract：:Hyperphosphatemia is a mineral bone-disease that increases cardiovascular complications and all-cause mortality in chronic kidney disease (CKD) patients. Oral phosphate binders absorb the dietary phosphate to prevent its high plasma levels. Moreover, they can adsorb some uremic toxins and decrease inflammation. A few ...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2019.172892
更新日期：2020-02-05 00:00:00
abstract：:The breakdown of inositol phospholipid (PI) stimulated by hippocampal noradrenaline in rat miniprisms in vitro was used as an index of alpha 1-adrenoceptor function after selective noradrenergic denervation. Selective denervation was produced by microinjections of 6-hydroxydopamine (6-OHDA) into either the dorsal nora...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(86)90715-6
更新日期：1986-04-29 00:00:00
abstract：:Thiazolidinedione and isoxazolidinedione insulin sensitizers activate peroxisome proliferator-activated receptor gamma (PPAR gamma). Some thiazolidinediones modify ion channels in smooth muscles; however, the mechanism by which their actions occur has not been clarified. We, thus, examined the effects of three thiazol...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)01047-0
更新日期：2001-06-29 00:00:00
abstract：:The immunosuppressant drug cyclosporine causes nephrotoxicity mainly via alterations of renovascular reactivity. This study investigated whether this effect of cyclosporine is modulated by the male gonadal hormone testosterone. The endothelium-dependent and -independent relaxations evoked by acetylcholine and sodium n...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(03)01720-5
更新日期：2003-05-16 00:00:00
abstract：:Recent studies have suggested that hydrogen sulfide (H2S), an important endogenous signaling gaseous molecule, participates in relaxation of smooth muscle. Nevertheless, the mechanism of this relaxation effect on respiratory system is still unclear. The present study aims to investigate the physiological function as w...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.07.004
更新日期：2014-10-15 00:00:00
abstract：:Acute leukemia is a malignant clonal hematopoietic stem cell disease. In the current study, we examined the effects of bryostatin 5 on acute monocytic leukemia cells in vitro and in vivo. We also explored the mechanisms and pathways underlying the increase in apoptosis induced by bryostatin 5. Bryostatin 5 inhibited t...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2013.08.012
更新日期：2013-10-15 00:00:00
abstract：:The arteriovenous fistula model of circulation can produce a high output and low peripheral resistance situation. Here, we have examined the effects of noradrenaline, vasopressin and sodium nitroprusside on cardiac index, mean arterial blood pressure, venous tone, resistance to venous return, arterial resistance, and ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.02.045
更新日期：2008-05-31 00:00:00
abstract：:The relationship between morphine tolerance and pituitary-adrenocortical activity was examined. In rats made tolerant to morphine by implantation of morphine-containing pellets, there was a significant reduction in plasma levels of beta-endorphin-like immunoreactivity (beta-END-LI), whereas no significant changes in c...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90499-v
更新日期：1990-06-21 00:00:00
abstract：:Results from lesion studies show that selective damage to the temporal cortex or lateral entorhinal cortex impairs visual memory, whereas damage to the hippocampal region does not affect retention of a visual discrimination task. Major input pathways of the above structures use glutamate as neurotransmitter. The gluta...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)01348-6
更新日期：2001-10-12 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：:In 36 healthy subjects of various ages (14-76 years) the number of alpha 2-adrenergic receptors in platelets - as determined by [3H]yohimbine binding - and plasma catecholamine levels were measured. A highly significant negative correlation (r = -0.666, P less than 0.001) between the number of alpha 2-adrenergic recep...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(82)90456-3
更新日期：1982-07-09 00:00:00
abstract：:Activation of P2X7 receptors by endogenous ATP contributes to the development of inflammatory hyperalgesia. Given the clinical importance of mechanical hyperalgesia in inflammatory states, we hypothesized that the activation of the P2X7 receptor by endogenous ATP contributes to carrageenan-induced mechanical hyperalge...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2010.06.061
更新日期：2010-10-10 00:00:00
abstract：:Protective effect of quercetin and alpha-tocopherol on experimental reflux oesophagitis in rats was investigated. Rats received quercetin, (100 mg/kg), alpha-tocopherol (16 mg/kg), omeprazole (30 mg/kg) given at 1 h prior to surgery. Quercetin and alpha-tocopherol significantly inhibited the oesophagitis index to 1.33...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.04.062
更新日期：2008-07-28 00:00:00
abstract：:Food intake is regulated by various factors such as neuropeptide Y. Neuropeptide Y potently induces an increase in food intake, and simultaneously stimulates arginine-vasopressin (AVP) secretion in the brain. Recently, we reported that V(1A) vasopressin receptor-deficient (V(1A)R(-/-)) mice exhibited altered daily foo...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2009.09.017
更新日期：2009-11-10 00:00:00
abstract：:Induction of lower lip retraction after local infusion of the selective 5-HT1A receptor agonist (+/-)-8-hydroxy-2-(di-n-propylamino)tetralin (8-OH-DPAT) in the dorsal and median raphe nuclei was measured. Infusion of 8-OH-DPAT (2.5, 5 and 10 micrograms/rat) into the median raphe nucleus caused an immediate and dose-de...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90728-5
更新日期：1994-10-03 00:00:00
abstract：:Proof-of-pharmacology models to study compounds in healthy subjects offer multiple advantages. Simvastatin is known to induce mitochondrial dysfunction at least partly by depletion of co-enzyme Q10. The goal of this study was to evaluate a model of simvastatin-induced mitochondrial dysfunction in healthy subjects and ...
journal_title：European journal of pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ejphar.2017.09.031
更新日期：2017-11-15 00:00:00
abstract：:We investigated sex differences in the motor responses to the full and selective dopamine D1-like receptor agonist, (+/-)-6-chloro-7,8-dihydroxyl-1-phenyl-2,3,4,5-tetrahydro-1H-3-benzazepine hydrobromide (SKF-81297; 0.3, 3, and 10 mg/kg, s.c.), in non-habituated adult rats. In general, SKF-81297 produced a biphasic ef...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(02)01716-8
更新日期：2002-06-07 00:00:00
abstract：:The possible influence of several neuropeptides on muscarinic receptor binding and function in fronto-parietal cortex of young and senescent Fischer 344 rats was examined. Low concentrations (100 nM) of cholecystokinin, neurotensin and vasoactive intestinal polypeptide (VIP), added in vitro, enhanced carbachol-stimula...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(92)90095-d
更新日期：1992-02-13 00:00:00
abstract：:The effects of (-)-huperzine A ((5R,9R,11E)-5-amino-11-ethylidene-5,6,9,10-tetrahydro-7-methyl-5, 9-methanocycloocta[b]pyridin-2(1H)-one), and of the hydrochloride salt of E2020 ((R,S)-1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]-methyl piperidine) and tacrine (9-amino-1,2,3,4-tetrahydroacridine), on the scopolamine-in...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00199-x
更新日期：1998-05-22 00:00:00
abstract：:Excitotoxicity and imbalance of sodium and calcium homeostasis trigger pathophysiologic processes in cerebral ischemia which can accelerate neuronal death. Neuroprotective role of cannabidiol (CBD), one of the main non-psychoactive phytocannabinoids of the cannabis plant, has attracted attention of many researchers in...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2016.11.011
更新日期：2017-01-05 00:00:00
