Abstract:
:An antagonism between cholecystokinin (CCK) peptides and benzodiazepines (BZD) has been described in various paradigms. We sought to determine whether CCK and BZD are also antagonistic in their effects on brain neurotransmitter levels in the rat. No effect on the noradrenergic system was induced in any brain area by CCK 8 S and diazepam alone or in combination. Administered alone, sulfated CCK octapeptide (CCK 8 S) (5 micrograms/kg ip) and diazepam (5 mg/kg ip) were found to decrease DOPAC levels in the cortex and to induce 5-hydroxy-tryptamine accumulation in the hippocampus. When administered together, these variations were no longer observed. However, a slight tendency by each substance to decrease 3-methoxy-tyramine levels in the striatum, became significant when given in association. The differences in CCK-BZD interactions observed in the striatum, cortex and hippocampus suggest that different mechanisms of action are involved. The addition of the effects occurring in the striatum might involve a GABA-ergic mechanism.
journal_name
Fundam Clin Pharmacoljournal_title
Fundamental & clinical pharmacologyauthors
Rybarczyk MC,Orosco M,Rouch C,Jacquot C,Cohen Ydoi
10.1111/j.1472-8206.1990.tb00491.xsubject
Has Abstractpub_date
1990-01-01 00:00:00pages
245-53issue
2eissn
0767-3981issn
1472-8206journal_volume
4pub_type
杂志文章abstract::We have studied the effects of neurotensin (NT) on the release of [3H]dopamine ([3H]DA) evoked by terminal depolarization with either K+, veratridine or 4-aminopyridine (4-AP). NT (1-1000 nM) induced a net potentiation (up to 170%) of the K+ (25 mM)-evoked release of [3H]DA. The capacity of NT to potentiate the effect...
journal_title:Fundamental & clinical pharmacology
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abstract::Several recent reports have described the antiarrhythmic effects of a single high oral dose of amiodarone but clinical electrophysiologic effects have not been reported. The present study was performed to assess electrophysiologic effects in 12 patients. After baseline electrophysiologic studies (EPS) patients were ad...
journal_title:Fundamental & clinical pharmacology
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journal_title:Fundamental & clinical pharmacology
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journal_title:Fundamental & clinical pharmacology
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abstract::A meta-analysis was performed on the results of clinical trials of buflomedil in intermittent claudication. The analysis used results from 744 patients enrolled in ten studies, conducted at 42 centers in seven countries. All studies were randomized, double-blind, placebo-controlled trials which measured improvement in...
journal_title:Fundamental & clinical pharmacology
pub_type: 临床试验,杂志文章,meta分析
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pub_type: 杂志文章
doi:10.1111/j.1472-8206.1992.tb00102.x
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journal_title:Fundamental & clinical pharmacology
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doi:10.1111/j.1472-8206.1997.tb00199.x
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journal_title:Fundamental & clinical pharmacology
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pub_type: 杂志文章
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journal_title:Fundamental & clinical pharmacology
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journal_title:Fundamental & clinical pharmacology
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journal_title:Fundamental & clinical pharmacology
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doi:10.1111/j.1472-8206.1987.tb00575.x
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journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.1998.tb00962.x
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abstract::The maturation of the N-acetyltransferase-dependent AFMU production from caffeine was studied during infancy. The group of children (N = 14) consisted of 4 premature newborn infants and ten 1-19 month-old infants who received caffeine citrate solution for the treatment and prevention of apnea. Caffeine, AFMU, 1X and 9...
journal_title:Fundamental & clinical pharmacology
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doi:10.1111/j.1472-8206.1989.tb00461.x
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abstract::The pharmacokinetics of penticainide, a class Ic antiarrhythmic drug, was studied in 16 healthy adults (eight males and eight females) after a single 300-mg oral dose in fasting conditions and with a standard meal. Penticainide concentrations in plasma and urine were measured by hplc. The pharmacokinetic parameters of...
journal_title:Fundamental & clinical pharmacology
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journal_title:Fundamental & clinical pharmacology
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更新日期:2007-11-01 00:00:00
abstract::Considering the diseases of the stomach and duodenum, peptic ulcer has been the one with a significant clinical impact. The pathophysiology of peptic ulcer has centred on an imbalance between aggressive and protective factors. The discovery of Helicobacter pylori as a cause of peptic ulcer has changed our approach gre...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1111/j.1472-8206.2004.00203.x
更新日期:2004-02-01 00:00:00
abstract::The effects of sub-chronic cold stress on the functioning of hippocampal 5-HT1A receptors in old isolated rats and the possible protective effects of Ginkgo biloba extract (EGb 761) were investigated. Cold exposure during five days, produced a significant reduction of the inhibitory effect of 8-hydroxy-2-(di-n-propyla...
journal_title:Fundamental & clinical pharmacology
pub_type: 杂志文章
doi:10.1111/j.1472-8206.1995.tb00277.x
更新日期:1995-01-01 00:00:00
abstract::Thienopyridines have become the cornerstone of treatment for percutaneous coronary intervention although no survival benefit has ever been shown with clopidogrel despite increasing loading doses. Newly developed P2Y12 inhibitors are more potent, more predictable, and have a faster onset of action than clopidogrel, cha...
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pub_type: 杂志文章,评审
doi:10.1111/j.1472-8206.2011.00984.x
更新日期:2012-02-01 00:00:00