Abstract：
:This study investigated sex-related differences in rat papillary muscle force generation in response to altered extracellular [Ca2+] ([Ca2+](o), 0.2 to 5.0 mM) and to L-type Ca2+ channel modulators (nifedipine and Bay K8644). At all [Ca2+]o examined, contractile force was significantly greater in male than female papillary muscles. The [Ca2+]o required for 50% maximum force was significantly lower in male [0.34+/-0.06 mM] than female [0.61+/-0.10 mM] papillary muscles. Nifedipine decreased contractile force in papillary muscles of both sexes in a concentration-dependent manner, but the extent of the contractile depression was more marked in male papillary muscles at all nifedipine concentrations examined. BayK 8644 produced a concentration-dependent increase in contractile force in male papillary muscles but notably, not in female papillary muscles. These findings show that sex differences in myocardial mechanical function are associated with sex-specific modulation of L-type Ca2+ channel responsiveness. Thus, the L-type Ca2+ channel could represent an important cellular locus from which sex-based differences in myocardial excitation-contraction coupling arise.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Curl CL,Delbridge LM,Wendt IRdoi
10.1016/j.ejphar.2008.02.053subject
Has Abstractpub_date
2008-05-31 00:00:00pages
288-92issue
1-3eissn
0014-2999issn
1879-0712pii
S0014-2999(08)00238-0journal_volume
586pub_type
杂志文章abstract：:Leukotriene C4 binding to mouse brain membranes was readily displaced by S-alkylglutathione derivatives, with the affinity of the test compound increasing as the alkyl chain length increases. S-decylglutathione was as potent as leukotriene C4. These data suggest that brain membrane leukotriene C4 binding sites are S-a...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(89)90186-6
更新日期：1989-02-14 00:00:00
abstract：:ATP-dependent potassium (K(ATP)) channels are the target of multiple vasoactive factors and drugs. Changes in the functional role of ATP-dependent (K(ATP)) potassium channels in hypertension are controversial. The aim of the present study was to analyze the possible changes of ATP-sensitive potassium channels (K(ATP))...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2008.03.039
更新日期：2008-06-10 00:00:00
abstract：:Characteristics of [3H]flunitrazepam ([3H]FLU) binding to cortical and cerebellar membrane receptors were examined following chronic (six days) administration of phenobarbital (PB) to C57B1 mice. Following PB treatment, the number of [3H]FLU binding sites (Bmax) was significantly reduced in both cerebral cortex and in...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(84)90497-7
更新日期：1984-08-17 00:00:00
abstract：:(5R,6R)6-(3-propylthio-1,2,5-thiadiazol-4-yl)-1-azabicyclo[3 .2.1]octane (PTAC) is a potent muscarinic receptor ligand with high affinity for central muscarinic receptors and no or substantially less affinity for a large number of other receptors or binding sites including dopamine receptors. The ligand exhibits parti...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00487-7
更新日期：1998-09-04 00:00:00
abstract：:Chemotherapy-induced neuropathies are widespread disorders evoked by characteristic damage of the nervous system. Sensory alterations, as paresthesia and dysesthesia, and severe pain are disabling side effects that altered quality of life, leading to therapy discontinuation. These kind of neuropathies are extremely di...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2013.04.022
更新日期：2013-07-05 00:00:00
abstract：:Dopamine agents (saline in control groups) were coadministered with indomethacin by either single or repeated application. The ulcerogenic effect (erosions and/or ulcers) of repeated given indomethacin on gastric mucosa differed clearly from that on intestinal mucosa. The effect on intestinal mucosa was markedly great...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(88)90253-1
更新日期：1988-12-06 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 effects of prolactin on animal behavior include the stimulation of novelty-induced grooming in rats. This effect has been demonstrated in hyperprolactinaemic animals bearing pituitary homografts under the kidney capsule or after intracerebroventricular (i.c.v.) administration of prolactin. Since plasma prolactin l...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/s0014-2999(00)00678-6
更新日期：2000-09-29 00:00:00
abstract：:Induction of mRNA or protein for immediate-early genes, such as c-fos, is used to identify brain areas, specific cell types, and neuronal circuits that become activated in response to various stimuli including psychoactive drugs. The objective of the present study was to identify the cell types in the prefrontal corte...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2007.12.031
更新日期：2008-03-31 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：:Recently we have demonstrated that 20-hydroxy-5,8,11,14-eicosatetraenoic acid (20-HETE) constricts rat aortic rings and that this effect is cyclooxygenase- and endothelium-dependent. Incubation of 20-HETE with ram seminal vesicles, a rich source of cyclooxygenase, led to the identification of vasoconstrictor metabolit...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90812-v
更新日期：1993-04-22 00:00:00
abstract：:Attempts were made to find whether [3H]batrachotoxinin A 20-alpha-benzoate provides a specific probe for measuring interactions of local anesthetics with the sodium channel complex. [3H]Batrachotoxinin A 20-alpha-benzoate binding, [14C]guanidine and 22Na uptake were investigated in rat brain crude synaptosomal prepara...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(86)90230-x
更新日期：1986-05-27 00:00:00
abstract：:The effects of MP 518, an acylated 2-chlorobenzylidene hydrazidone derivative with antihypertensive properties were investigated on the Ca current, ICa, recorded under whole-cell patch-clamp in single frog ventricular cells. MP 518 (1-100 microM) had no effect on ICa under control conditions. However, at 10 microM it ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(93)90016-3
更新日期：1993-01-15 00:00:00
abstract：:Antidepressant drugs are currently one of the most prescribed medications. In addition to treatment resistance and side effects of antidepressants, their clinical use is further complicated by antidepressant discontinuation syndrome (ADS). ADS is a common problem in patients following the interruption, dose reduction,...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2018.04.003
更新日期：2018-06-15 00:00:00
abstract：:In rat neocortical slices activation of glutamate metabotropic receptors with glutamate, quisqualate and 1S,3R-ACPD caused a spike-evoked afterdepolarization which replaced the normal afterhyperpolarization. In some neocortical neurons the afterdepolarization reached action potential threshold causing prolonged self-s...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(92)90073-5
更新日期：1992-07-01 00:00:00
abstract：:The response of convergent dorsal horn cells to tonic and phasic noxious heating and to noxious pinching was studied before and after topical application of a solution (30 nmol) of the kappa agonist U-50,488H to the dorsal surface of the spinal cord. U-50,488H depressed the discharge of convergent units evoked by ther...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90453-d
更新日期：1990-09-21 00:00:00
abstract：:The effects of intracerebroventricular (i.c.v.) or intravenous (i.v.) administration of morphine on colonic motility were investigated in conscious dogs chronically fitted with a strain gauge transducer sutured to the serosa of the proximal colon. Morphine administered i.v. (100 micrograms/kg) or i.c.v. (10 micrograms...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(85)90479-0
更新日期：1985-10-29 00:00:00
abstract：:This study was purposed to explore the mechanism of augmenting apoptosis-inducing effects of cisplatin on colorectal cancer SW480 cells by stable transfection of Programmed Cell Death 5 (PDCD5) gene, both in vitro and in vivo. The expression level of PDCD5 of SW480 cells stably transfected with PDCD5 (SW480/PDCD5) and...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2010.09.040
更新日期：2010-12-15 00:00:00
abstract：:Spinorphin has been isolated from the bovine spinal cord as an endogenous inhibitor of enkephalin-degrading enzymes (aminopeptidase, dipeptidyl aminopeptidase III, angiotensin-converting enzyme and enkephalinase), and tynorphin has been synthesized as a more potent inhibitor of dipeptidyl aminopeptidase III. In this s...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(01)00742-7
更新日期：2001-02-16 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：:Whole-cell patch-clamp recordings investigated the electrophysiological effects of 2'-hydroxy-4'-methoxyacetophenone (paeonol), one of the major components of Moutan Cortex, in hippocampal CA1 neurons and nucleus ambiguus (NA) neurons from neonatal rats as well as in lung epithelial H1355 cells expressing Kv2.1 or Kv1...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2016.04.057
更新日期：2016-08-05 00:00:00
abstract：:Adjuvant-induced arthritis is associated with body weight loss and decreased pituitary growth hormone (GH) and hepatic insulin-like growth factor-I (IGF-I) synthesis. Cytokines as tumor necrosis factor (TNF) mediate wasting associated with chronic inflammation. The aim of this study was to analyse whether the inhibiti...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2006.02.035
更新日期：2006-04-24 00:00:00
abstract：:Endotoxin tolerance is a mechanism in which cells receiving low doses of endotoxin, enter a transient phase with less inflammatory response to the next endotoxin challenges. Central nervous system is known to modulate systemic inflammation through activation of the cholinergic system; however, the role of central anti...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.06.050
更新日期：2014-10-05 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90989-u
更新日期：1993-08-03 00:00:00
abstract：:Yawning was recorded from five rhesus monkeys restrained in a chair after i.m. injection of dopaminergic compounds: apomorphine (0.03 mg/kg), quinpirole (0.01 mg/kg), and (-)-3-(3-hydroxyphenyl)-N-(1-propyl)piperidine (1 mg/kg). SKF 38393 or physostigmine produced no yawning. Yawning from apomorphine was blocked by ch...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90351-p
更新日期：1991-08-29 00:00:00
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 urete...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(96)00765-0
更新日期：1996-12-30 00:00:00
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journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2018.11.032
更新日期：2019-01-15 00:00:00
abstract：:Nitric oxide (NO) is continuously produced in the lung and can be measured in exhaled gas of different species. To investigate a possible neuro-humoral regulation of pulmonary NO production in vivo we injected veratrine, an activator of Na(+) channels known to activate the sympathoadrenal system, in anaesthetized, mec...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00930-4
更新日期：2001-01-12 00:00:00
abstract：:Translational research for neurodegenerative disease depends intimately upon animal models. Unfortunately, promising therapies developed using mouse models mostly fail in clinical trials, highlighting uncertainty about how well mouse models mimic human neurodegenerative disease at the molecular level. We compared the ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2015.03.021
更新日期：2015-07-15 00:00:00
abstract：:Interleukin-8 is assumed to play a central role in the pathogenesis of psoriasis. Since an increased expression of the interleukin-8 receptor has been observed both in polymorphonuclear leukocytes and in affected psoriatic epidermis, we were interested in whether the interleukin-8 receptor could be a molecular target ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90490-1
更新日期：1994-06-13 00:00:00
