Abstract：
:Previous functional studies with the rat jugular vein have shown alpha-adrenergically mediated contraction was minimal to nonexistent, yet this tissue relaxed in response to norepinephrine via beta 1 and to isoproterenol via beta 2-receptor activation. Unlike the rat jugular vein, the rat aorta markedly contracted to norepinephrine and relaxed to beta-adrenoceptor stimulation. This study qualitatively examined the alpha- and beta-receptor distributions in the rat jugular vein, as compared to the rat aorta, with autoradiographical methods. Cross-sections of blood vessels were labelled with the alpha-receptor ligand, [125I]HEAT ([beta-(4-hydroxy-3-iodophenyl)-ethyl-aminomethyl]-tetralone) and the beta-receptor ligand, [125I]ICYP (iodo-cyanopindolol), and subsequently were opposed to emulsion coated coverslips. Specific binding of both alpha- and beta-receptors was demonstrated in the rat aorta. While specific beta-receptor binding was demonstrated in the rat jugular vein, this tissue showed no detectable alpha-receptors. These autoradiographic studies indicate that the lack of alpha-adrenergically mediated contraction in the rat jugular vein is likely due to a virtual absence of alpha-receptor binding sites, rather than poor functional alpha-receptor coupling.
journal_name
Eur J Pharmacoljournal_title
European journal of pharmacologyauthors
Killam AL,Cohen MLdoi
10.1016/0014-2999(92)90182-4keywords:
subject
Has Abstractpub_date
1992-08-06 00:00:00pages
295-301issue
2-3eissn
0014-2999issn
1879-0712pii
0014-2999(92)90182-4journal_volume
218pub_type
杂志文章abstract：:Autophagy is a lysosomal degradation pathway, which is essential for cell survival, proliferation, differentiation and homeostasis. It is well known that beta-amyloid (Aβ) aggregation is one of key characteristics for Alzheimer's disease (AD), which triggers a complex pathological cascade, leading to neurodegeneration...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2014.06.051
更新日期：2014-10-05 00:00:00
abstract：:Acute administration of delta 9-tetrahydrocannabinol (THC) (50 mg/kg) at puberty (35-40 days) significantly (P less than 0.05) reduced Ca2+ ATPase activity in hypothalamic plasma membranes but increased, although not significantly, enzyme activity in hypothalamic tissue obtained from adult mice. In contrast, testicula...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(87)90186-5
更新日期：1987-05-07 00:00:00
abstract：:Drugs known to interact with Na+ channels were compared as antagonists of Ca2+-induced contractions of K+-depolarized taenia preparations from guinea-pig caecum. Tetracaine (apparent pA2 5.3 +/- 0.2), quinidine (5.2 +/- 0.1) quinine (5.1 +/- 0.1), d-propranolol (4.7 +/- 0.1), 1-propranolol (4.7 +/- 0.1), lignocaine (4...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(85)90718-6
更新日期：1985-01-22 00:00:00
abstract：:Some cationic antibacterial peptides, with typical amphiphilic α-helical conformations in a membrane-mimicking environment, exhibit anticancer properties as a result of a similar mechanism of action towards both bacteria and cancer cells. We previously reported the cDNA sequence of the antimicrobial peptide ABP-dHC-Ce...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2017.03.054
更新日期：2017-05-15 00:00:00
abstract：:We investigated the relationship between tension development and the cytosolic free Ca2+ level ([Ca2+]i) on exposure of the endothelium-denuded isolated rat aorta to palmitoyl-L-alpha-lysophosphatidylcholine. Lysophosphatidylcholine concentration-dependently induced a gradual increase in [Ca2+]i. Application of 10(-4)...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(99)00458-6
更新日期：1999-08-06 00:00:00
abstract：:The disruption of redox state homeostasis, the overexpression of lipogenic transcription factors and enzymes, and the increase in lipogenic precursors induced by sweetened beverages are determinants of the development of nonalcoholic fatty liver disease. This study evaluated the action of nicotinamide (NAM) on the exp...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2017.10.048
更新日期：2018-01-05 00:00:00
abstract：:N-[4-(3,4-dihydro-6,7-dimethoxyisoquinolin-2(1H)-yl)butyl]-2-methoxy-5-methyl-benzamide (RHM-1) and N-[2-(3,4-dihydro-6,7-dimethoxyisoquinolin-2(1H)-yl)ethyl]-2-methoxy-5-methylbenzamide (RHM-2), two conformationally flexible benzamide analogues, were radiolabeled with tritium (specific activity=80 Ci/mmol) and the bi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2005.09.063
更新日期：2005-11-21 00:00:00
abstract：:Uptake blockers and substrates are likely to recognise a common binding domain on the dopamine neuronal transporter (DAT). Among cations that form ionic gradients at the level of the cellular plasma membrane, Na+ is the only one that can stimulate their binding. The binding stimulation appears over Na+ concentrations ...
journal_title：European journal of pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.ejphar.2003.08.069
更新日期：2003-10-31 00:00:00
abstract：:Iron-mediated oxidative stress has been recognized as one of the leading causes of chronic kidney injury. The effect of L-type calcium channel (LTCC) blocker on iron overload has been shown in cardiomyocytes, liver cells, and nerve cells. So far, few studies have examined whether blockers improve kidney iron-mediated ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2020.173513
更新日期：2020-11-05 00:00:00
abstract：:Transient activation of the outward K+ current caused by a rise in the cytosolic free Ca2+ concentration, [Ca2+]i was the predominant change in plasma membrane ion flux during the first phase of thyrotropin-releasing hormone (TRH) action on pituitary cells. Following the intracellular application of inhibitors of 1,2-...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0922-4106(89)90046-1
更新日期：1989-03-07 00:00:00
abstract：:Several phenyl-benzazepine compounds, putatively selective dopamine D1 receptor agonists, have been used to study the effects of dopamine D1 receptor stimulation in rodents and nonhuman primates. However, the dopamine receptor selectivities of these compounds have not been established in nonhuman primates. Accordingly...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(98)00669-4
更新日期：1998-11-13 00:00:00
abstract：:KCl-contracted aortic rings from 18-month-old rats, in contrast with those from 2-month-old rats, showed a substantial reduction in the relaxant effects of the non-selective beta-adrenoceptor agonist, isoproterenol, and of the selective beta 2-adrenoceptor agonist, clenbuterol, without changes in the relaxant actions ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(91)90618-z
更新日期：1991-06-06 00:00:00
abstract：:Extravasation elicited in rat skin by antidromic electrical stimulation of the saphenous nerve was dose dependently inhibited by the intravenous (i.v.) application of the mu-opioid receptor agonists, morphine and [D-Ala2,Me-Phe4,Gly-ol5]enkephalin (DAGO), and the kappa-opioid receptor agonists (-)-U 50488H, (-)-ICI 19...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(93)90233-8
更新日期：1993-05-12 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：:59Fe was incorporated in vivo into intestinal sacs prepared in iron deficient rats and 59Fe counts were detected in blood, spleen, liver, femur and intestine. The i.v. injection of isoproterenol (i.v. 2 micrograms/rat) or N',O'-dibutyryladenosine 3',5'-cyclic monophosphate (10 microM/100 g b.w.) enhanced significantly...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(84)90015-3
更新日期：1984-05-04 00:00:00
abstract：:The GABA-inhibitory action of bicuculline on lobster muscle was critically re-examined. Bicuculline (20-100 micrometers) depressed the GABA-evoked conductance increase in a reversible manner, the double reciprocal transformation of the GABA dose/conductance curves remaining linear. If bicuculline was assumed to be a p...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(81)90428-3
更新日期：1981-03-05 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：:The melanocortin subtype 4 (MC4) receptor has been postulated to be involved in stress and stress-related behavior. We made use of melanocortin MC4 receptor agonists and antagonist to investigate the relationship between the melanocortin MC4 receptor and stress related disorders. The nonspecific melanocortin receptor ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(03)02033-8
更新日期：2003-08-01 00:00:00
abstract：:Dapagliflozin (DAPA) or canagliflozin (CANA), Na+-dependent glucose co-transporter type 2 (SGLT2) inhibitors, were used for treatment of type II diabetes mellitus. Addition of DAPA or CANA suppressed M-type K+ current (IK(M)) in pituitary tumor (GH3) and pheochromocytoma PC12 cells. The IC50 value for DAPA- or CANA-me...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2020.173141
更新日期：2020-07-15 00:00:00
abstract：:Pharmacokinetic and pharmacodynamic parameters of the selective serotonin reuptake inhibitor 1-(3-dimethylaminopropyl)-1-(4-fluorophenyl)-5-phtalancarbonitril (citalopram) were determined in order to find optimal conditions for augmentation of its effect on extracellular serotonin [5-hydroxytryptamine (5-HT)] through ...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00247-8
更新日期：2000-05-26 00:00:00
abstract：:AY-22,241 (Actodigin) is a new rapid-acting semisynthetic cardiotonic steroid. In experiments on contractility of cat papillary muscle, Actodigin (2 times 10(-7) to 4 times 10(-6) M) produced a dose-dependent positive inotropic effect, a marked increase in the maximum rate of force development, and no change in restin...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(75)90316-7
更新日期：1975-05-01 00:00:00
abstract：:Preeclampsia is reported in pregnant women around the world and often causes maternal/fetal mortality and morbidity. In the current study, we assessed the efficacy of celastrol on a rat preeclampsia model induced by Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME). Pregnant rats were administered L-NAME to esta...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2018.04.025
更新日期：2018-07-05 00:00:00
abstract：:Osthole is a coumarin extracted from Cnidium monnieri (L.) Cusson. The medicinal plant is widely used in Vietnamese as well as Chinese traditional medicine as a vasodilating and antihypertensive agent. Here we have tested the proposition that the block of Ca(v)1.2 channels is mainly responsible for its vascular activi...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2012.01.038
更新日期：2012-04-05 00:00:00
abstract：:The association between cocaine administration and induction of oxidative stress in different brain regions suggests that oxidative damage is an important factor participating in cocaine disruption of normal central nervous system functions. In order to deal with this topic, brain penetrating exogenous antioxidants we...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/j.ejphar.2010.10.024
更新日期：2011-01-10 00:00:00
abstract：:(5R,6R)-6-(3-Propylthio-1,2,5-thiadiazol-4-yl)-1-azabicyclo[ 3.2.1]octane (PTAC) is a selective muscarinic receptor ligand. The compound exhibits high affinity for central muscarinic receptors with partial agonist mode of action at muscarinic M(2) and M(4) and antagonist mode of action at muscarinic M(1), M(3) and M(5...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00442-8
更新日期：2000-08-25 00:00:00
abstract：:The biological activity of two galanin (GAL) fragments, GAL-(1-16) and GAL-(17-29), was tested in vivo by using a spinal nociceptive flexor reflex model in the rat. Intrathecal (i.t.) GAL-(1-16) had a similar biphasic effect on the flexor reflex, with facilitation at lower doses and facilitation followed by depression...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(90)90502-w
更新日期：1990-06-21 00:00:00
abstract：:A neonatal cerebral cortical lesion was made in rats and the effects of diazepam on ultrasonic isolation calls in pups and footshock-elicited ultrasonic distress calls in young adult rats were assessed. There was no indication that the cortical lesion influenced the production of the ultrasonic distress calls in eithe...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)00657-s
更新日期：1995-01-16 00:00:00
abstract：:The analgesic interaction between intrathecally administered morphine and the NMDA receptor antagonist, ((+/-)-2-amino-5-phosphonopentanoic acid; AP-5), the NMDA receptor glycine site antagonist, (5-nitro-6,7-dichloro-2,3-quinoxaline dion; ACEA 1021), or the AMPA (alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic ac...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(00)00268-5
更新日期：2000-05-03 00:00:00
abstract：:Glucocorticoids inhibit inducible-type NO synthase activity in a variety of cell types. We report here that proteins recovered from the medium of dexamethasone-treated J774 macrophages (1, 10, 100 microg/ml) inhibited lipopolysaccharide-stimulated nitrite generation by 10.0 +/- 3.0%, 32.3 +/- 5.3% and 55.0 +/- 6.0%, r...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/s0014-2999(97)01361-7
更新日期：1997-11-19 00:00:00
abstract：:In this study, the elevated zero-maze model of anxiety was used to investigate CCK receptor antagonist effects on the behaviour of male Lister-hooded rats and to demonstrate, by administering antagonists in the presence or absence of selective 5-hydroxytryptamine (5-HT) re-uptake inhibitors, the involvement of 5-HT in...
journal_title：European journal of pharmacology
pub_type： 杂志文章
doi：10.1016/0014-2999(94)90800-1
更新日期：1994-12-27 00:00:00
