Abstract：
:Langendorff preparations of Sprague-Dawley rat hearts were perfused with calcium-free Krebs solution of pH 7.48 (control), 7.26 (acidosis) or 7.69 (alkalosis) containing either adrenaline or potassium. The responses of the force of contraction, coronary perfusion pressure and heart rate to graded doses of calcium preceded by a single dose of verapamil were measured. Contractile responsiveness to calcium was reduced during acidosis in both adrenaline- and potassium-stimulated hearts but was increased or reduced during alkalosis with adrenaline- or potassium stimulation, respectively. The efficacy of verapamil as a calcium antagonist increased during acidosis or alkalosis in both adrenaline- and potassium-stimulated hearts. In conclusion, acidosis or alkalosis inhibits potassium-stimulated contractions of the heart and enhances the effects of verapamil on potassium- and adrenaline-mediated contractions. Acidosis inhibits and alkalosis enhances adrenaline-stimulated contractions.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Achike FI,Dai Sdoi
10.1016/0014-2999(91)90411-ikeywords:
subject
Has Abstractpub_date
1991-04-10 00:00:00pages
77-83issue
1eissn
0014-2999issn
1879-0712pii
0014-2999(91)90411-Ijournal_volume
196pub_type
杂志文章abstract：:Chronic infection with the liver fluke, Opisthorchis viverrini, induces advanced periductal fibrosis and is a relative risk factor for cholangiocarcinoma in Southeastern Asia. We examined the reducing effect of curcumin on hepatobiliary fibrosis using O. viverrini-infected hamsters supplemented with dietary 1% curcumi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2010.04.018
更新日期：2010-07-25 00:00:00
abstract：:The effects of group 2- versus group 3-selective metabotropic glutamate (mGlu) receptor agonists were examined against forskolin (10 microM)-, vasoactive intestinal peptide (VIP; 1 microM)- and 5'-N-ethylcarboxamidoadenosine (NECA; 10 microM)-stimulated cAMP accumulations in adult rat hippocampal slices (in the presen...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00747-4
更新日期：1996-02-22 00:00:00
abstract：:The influence of enzymatic degradation on the neurotransmitter actions of ATP was studied using the ecto-ATPase inhibitor 6-N,N-diethyl-D-beta,gamma-dibromomethyleneATP (ARL 67156). Field stimulation of the parasympathetic nerves innervating guinea-pig urinary bladder muscle strips (1-8 Hz for 20 s) produced character...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：
更新日期：1997-06-25 00:00:00
abstract：:We examined the effects of the administration of 21-[4-(2,6-di-1-pyrrolidinyl-4-pyrimidinyl)-1-piperazinyl]-pregna-1,4,9( 11)-triene-3,20-dione, monomethansulfonate (U74389F), a 21-aminosteroid and so-called lazaroid, that is characterized by an inhibitory activity against iron-dependent lipid peroxidation, on ischemi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(95)00638-9
更新日期：1995-12-29 00:00:00
abstract：:Goniothalamin, a natural occurring styryl-lactone, is a novel compound with putative anticancer activities. In the present study, the mechanism of action of goniothalamin was further investigated in human breast cancer MDA-MB-231 cells. Goniothalamin treatment of cells significantly induced cell cycle arrest at G(2)/M...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.08.047
更新日期：2005-10-17 00:00:00
abstract：:The effects of loxapine and its hydroxylated metabolites 7-hydroxyloxapine and 8-hydroxyloxapine on 3H-spiroperidol binding to rat striatal membranes were investigated. Whereas 7-hydroxyloxapine and loxapine displayed strong affinities for 3H-spiroperidol binding sites, 8-hydroxyloxapine was essentially inactive. The ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(79)90396-0
更新日期：1979-04-15 00:00:00
abstract：:Treatment of rats with cyclosporine A (50 mg/kg i.p.) for 4 days resulted in the impairment of renal function. Renal membrane and soluble phorbol ester receptor densities were significantly higher in cyclosporine A-treated rats compared to vehicle-treated rats. These data suggest that increased phorbol ester receptor ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90396-8
更新日期：1991-03-19 00:00:00
abstract：:The TxA2 receptor antagonist properties of SQ 27,427 [a cyclohexylcarbinol-7-oxabicyclo(2.2.1)heptenoic acid analog] were studied in vitro both in the human platelet and various isolated smooth muscle preparations. SQ 27,427 was found to be a potent inhibitor of human platelet aggregation induced by arachidonic acid, ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(84)90183-3
更新日期：1984-08-03 00:00:00
abstract：:The effects of acute treatment with sibutramine on the peripheral sympathetic neurotransmission in vas deferens of young rats were still not evaluated. Therefore, we carried out this study in order to verify the effects of acute sibutramine treatment on the neuronal- and exogenous agonist-induced contractions of the y...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.05.035
更新日期：2014-09-05 00:00:00
abstract：:In our previous study, it was found that linoleoyl ethanolamide (LE) is present in sake lees, which are produced as a byproduct during the making of Japanese sake. LE is a fatty acid ethanolamide, which have been demonstrated to exert a variety of biological functions, and in this study, the anti-inflammatory effects ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2012.11.030
更新日期：2013-01-15 00:00:00
abstract：:Cabergoline 1-[(6-allylergolin-8 beta-yl)carbonyl]-1-[3-(dimethylamino) propyl]-3-ethylurea is a recently developed ergot derivative with a long-lasting dopamine agonist action. We now studied the ability of cabergoline to counteract the development of a prolactin-secreting tumor (prolactinoma) induced in female rats ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90696-6
更新日期：1988-06-22 00:00:00
abstract：:The effect of dynorphin A-(1-13) on morphine-induced urine output was studied in the rat. The previous simultaneous intracerebroventricular (i.c.v.) injection of dynorphin (20 micrograms/rat) and morphine (20 micrograms/rat) altered the response of rat given morphine (20 micrograms/rat) 24 h later, producing a 3-fold ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(86)90015-4
更新日期：1986-12-02 00:00:00
abstract：:The neurochemical control of learning depends on several neurotransmitters, hormones, and neuropeptides. Cortistatin is a neuropeptide with sleep-modulating properties that regulates memory consolidation and evocation. Several reports have suggested that learning processes are expressed under diurnal variations; there...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2004.10.054
更新日期：2005-01-10 00:00:00
abstract：:Prevention and restoration of hepatic fibrosis from chronic liver injury is essential for the treatment of patients with chronic liver diseases. Vitamin C is known to have hepatoprotective effects, but their underlying mechanisms are unclear, especially those associated with hepatic fibrosis. Here, we analyzed the imp...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2015.06.008
更新日期：2015-09-05 00:00:00
abstract：:Cannabinoid CB(2) receptors have been implicated in antinociception in animal models of both acute and chronic pain. We evaluated the role both cannabinoid CB(1) and CB(2) receptors in mechanonociception in non-arthritic and arthritic rats. The antinociceptive effect of Delta(9)-tetrahydrocannabinol (Delta(9)THC) was ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.05.024
更新日期：2007-09-10 00:00:00
abstract：:Selected benzodiazepine and non-benzodiazepine agents were studied alone or in the presence of benzodiazepine antagonists in the shock-induced suppression of drinking (SSD) procedure in rats. The disinhibitory activity of chlordiazepoxide, CL218,872, zopiclone and CGS 9896 was antagonized by two benzodiazepine antagon...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(82)90331-4
更新日期：1982-12-24 00:00:00
abstract：:Chronic nitric oxide synthase (NOS) inhibition results in hypertension and myocardial injury. In a rapid and severe model of chronic NOS inhibition, we determined the role of angiotensin II in these effects by using angiotensin II receptor blockade and by measuring cardiac angiotensin II concentrations before and duri...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00384-8
更新日期：2000-07-21 00:00:00
abstract：:The present study assessed 5-HT3 receptor recognition site levels in homogenates of putamen derived from patients with clinically and neurochemically diagnosed Huntington's disease or Parkinson's disease and those from age-, sex- and post-mortem delay-matched neurologically and psychiatrically normal patients to inves...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90073-q
更新日期：1993-09-28 00:00:00
abstract：:The effects of capsaicin on the ability of platelets to aggregate in response to thrombin, platelet-activating factor or calcium ionophore (A23187) were examined. At concentrations previously shown to activate sensory afferent neurons, capsaicin markedly inhibited the responsiveness of platelets to the three agonists....
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90267-t
更新日期：1991-09-04 00:00:00
abstract：:Malfunction of the serotonergic system and dysregulation of the hypothalamo-pituitary-adrenocortical axis have been implicated in the pathophysiology of depression. Several studies provide evidence for reciprocal influences between glucocorticoids and 5-HT receptors. The effect of repeated treatment with a high dose o...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(96)00286-5
更新日期：1996-07-18 00:00:00
abstract：:Mechanical responses of the mouse colon to 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) were measured in vitro. MPTP caused muscle relaxation with an onset time of about 10 s. This relaxation was inhibited by propranolol. Pretreatment of the animals with reserpine significantly reduced the MPTP-induced relaxati...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90564-m
更新日期：1990-01-17 00:00:00
abstract：:Internal and external carotid vascular resistances were measured, in anaesthetized monkeys, to asses the direct cranial vascular effects of i.v. methysergide, pizotifen and ergotamine, and their effects on the cranial vascular responses to the constrictors 5-hydroxytryptamine and noradrenaline and the dilators histami...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(78)90038-9
更新日期：1978-03-01 00:00:00
abstract：:1-Phenyl-3-(2-thiazolyl)-2-thiourea (200 mg/kg, 1 h) protected the adrenergic nerve plexus in the mouse atrium against the destructive action of i.v. 5,7-dihydroxytryptamine. Protection was also observed with ethanol (4 g/kg, 1 h) and with nialamide (50 mg/kg, 2 h). ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(77)90026-7
更新日期：1977-06-01 00:00:00
abstract：:FR 172357, a new non-peptide antagonist of the kinin B(2) receptor was tested in three isolated vessels, the human umbilical vein, the rabbit jugular vein, and the pig coronary artery, to evaluate its antagonistic activities against bradykinin. FR 172357 displaced to the right the concentration-response curves of brad...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00711-6
更新日期：1999-12-10 00:00:00
abstract：:Patients with spinal cord injury (SCI) undergo severe loss of bone mineral below the level of lesion, and data on available treatment options after SCI is scarce. The aim of this work was to investigate the therapeutic effect of cannabidiol (CBD), a non-psychoactive cannabis, on sublesional bone loss in a rat model of...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2017.05.011
更新日期：2017-08-15 00:00:00
abstract：:Two highly selective mu-opioid receptor agonists, endomorphin-1 and endomorphin-2, have been identified and postulated to be endogenous ligands for mu-opioid receptors. Intrathecal (i.t.) administration of endomorphin-1 and endomorphin-2 at doses from 0.039 to 5 nmol dose-dependently produced antinociception with the ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)01238-9
更新日期：2001-09-21 00:00:00
abstract：:The pharmacological effects of the enantiomers of cis-3-aminocyclopentanecarboxylic acids ((+)- and (-)-CACP), the enantiomers of trans-3-aminocyclopentanecarboxylic acids ((+)- and (-)-TACP), and the enantiomers of 4-aminocyclopent-1-ene-1-carboxylic acids ((+)- and (-)-4-ACPCA) were studied on human homomeric rho(1)...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)01390-5
更新日期：2001-11-02 00:00:00
abstract：:The purpose of the present study was to test whether kava extract and its constituents kawain, dihydrokawain, methysticin, dihydromethysticin and yangonin provide protection against ischemic brain damage. To this end, we used a model of focal cerebral ischemia in mice and rats. Ischemia was induced by microbipolar coa...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(92)90037-5
更新日期：1992-05-14 00:00:00
abstract：:The specific, irreversible binding of [3H]beta-funaltrexamine (beta-FNA) to mu opioid receptors in slices from the corpus striatum and midbrain region containing the ventral tegmentum area (VTA) was accomplished by incubation with [3H]beta-FNA followed by a washing procedure with 1 microM unlabeled naltrexone in the w...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90650-4
更新日期：1988-05-10 00:00:00
abstract：:(5R)-5-hydroxytriptolide (LLDT-8) exhibits strong immunosuppressive activities in vitro and in vivo. Here, we investigated the effects of LLDT-8 on concanavalin A-induced hepatitis. Liver damage was evaluated by serum alanine transaminase (ALT) level and liver histology. The effects of LLDT-8 were determined by measur...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2006.03.013
更新日期：2006-05-10 00:00:00
