Abstract:
:In 6 normal volunteers given single oral doses of 250,500 and 1000 mg ticlopidine (T), the peak plasma level of unchanged drug was reached after about 2 h. There was no correlation between the plasma T level and its inhibitory effect on platelet function, expressed as % inhibition of ADP-induced aggregation. By means of HPLC and GC/MS significant concentrations of T were demonstrated in washed red cells, platelets and neutrophils, with a marked difference in the time course of the appearance of cell-associated drug. The time course of platelet-associated T very accurately fitted that of the antiaggregatory activity. After subacute oral administration (250 mg b.d. for 7 days), the maximum effect on platelet function was observed after 3 to 4 days, when a significant concentration of platelet-associated T had been reached. The pharmacological effect persisted as long as drug was detectable in platelet. An in vitro study strongly suggested that the antiaggregating effect was retained by treated washed platelets but not by treated plasma. It is suggested that the platelet compartment represents the pharmacological target of T via a specific uptake system.
journal_name
Eur J Clin Pharmacoljournal_title
European journal of clinical pharmacologyauthors
DiPerri T,Pasini FL,Frigerio C,Blardi P,Centini F,Messa GL,Ghezzi A,Volpi Ldoi
10.1007/BF00626364subject
Has Abstractpub_date
1991-01-01 00:00:00pages
429-34issue
5eissn
0031-6970issn
1432-1041journal_volume
41pub_type
杂志文章abstract:OBJECTIVE:To determine the variability of coumarin 7- and 3-hydroxylation in a human population and to evaluate the evidence for the existence of genetic polymorphism in these pathways. 7-Hydroxylation of coumarin is considered to be a detoxication pathway, whilst 3-hydroxylation, which predominates in rats, leads to h...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s002280050489
更新日期:1998-07-01 00:00:00
abstract::To assess the partial agonist activity of cicloprolol in man, four studies were carried out in normal male volunteers. I and II. Open dose escalating studies of the effects of oral doses of the drug on exercise tachycardia and sleeping heart rate. III and IV. Double-blind randomized studies of the effects of placebo, ...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00615219
更新日期:1988-01-01 00:00:00
abstract::A placebo-controlled, single blind, crossover study was done to evaluate the inotropic effects of single oral doses of mexiletine and disopyramide assessed by the measurement of Systolic Time Intervals (STI). Each of 8 healthy volunteers received five treatments in random order: 200 and 400 mg mexiletine, 100 and 200 ...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00541525
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVES:Problem-oriented drug information is characterised by health professionals actively seeking drug information through various sources. In this study our objective was to determine the quality and impact of problem-oriented drug information among physicians. METHODS:Evaluation forms accompanying 163 written a...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-001-0386-5
更新日期:2002-02-01 00:00:00
abstract::Atrial natriuretic factor (ANF) binding sites have been shown to be present on human platelet membranes. We investigated the effect of an infusion of ANF 5 pmol.kg-1.min-1 on platelet aggregation in whole blood ex-vivo in 8 normal volunteers. Spontaneous platelet aggregation, collagen (0.6-2 micrograms.m.-1)-induced o...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00316102
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVE:To examine the impact of medication and medical conditions on the fall risk in older hospitalized patients. DESIGN:Matched case-control study. SETTING:Large regional hospital in a mid-sized German city. SUBJECTS:Four hundred eighty-one inpatients aged ≥ 65 years who fell during hospitalization ("cases") an...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-019-02668-3
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVE:To investigate the effects of rifampicin on the pharmacokinetics of itraconazole in humans. METHODS:Our study was conducted with six healthy normal volunteers and three AIDS patients. All subjects received a 200 mg single dose of oral itraconazole on day 1 and day 15 and 600 mg of oral rifampicin once daily ...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002280050437
更新日期:1998-04-01 00:00:00
abstract::1. The effect of pre-dosing with 15 mg domperidone, a relatively selective dopamine 2-receptor antagonist, on the ocular hypotensive action of a single oral dose of 25 micrograms pergolide, a dopamine 2-receptor agonist, was studied in 9 normal human volunteers, using a non-invasive method. 2. Compared with domperidon...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF02336684
更新日期:1990-01-01 00:00:00
abstract::The cardiovascular and endocrine profile of cromakalim has been studied in 8 healthy men (age 25 +/- 2 years: means SEM) and its influence on renin release from cultured rat juxtaglomerular cells in vitro has also been examined. According to a double-blind, randomized sequence the subjects received placebo or cromakal...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00558067
更新日期:1989-01-01 00:00:00
abstract::The pharmacokinetics of cefixime following a single oral dose of 200 mg have been investigated in 6 normal subjects and in 22 patients with various degrees of renal insufficiency. Serum and urine samples were collected between 0 and 72 h and were subjected to two methods of analysis: bioassay and HPLC. There was a lin...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00314988
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:Intragastric pH-metry is widely used to evaluate the efficacy of antisecretory drugs, but statistical interpretation of the measurements has not yet been standardised. METHODS:The effects of single morning (N = 9) or evening (N = 7) doses of the H2-receptor antagonist famotidine, 20 mg (QUAMATELR. Gedeon Ric...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002280050139
更新日期:1996-01-01 00:00:00
abstract:OBJECTIVE:We investigated the frequencies of the functionally important variants of the CYP2A6 gene in black African populations. METHODS:Using genomic DNA sequencing, polymerase chain reaction (PCR)-restriction fragment length polymorphism and allele-specific PCR, the allele frequencies of CYP2A6 *1A, *1B, *2, *4A, *...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-004-0854-9
更新日期:2005-02-01 00:00:00
abstract:PURPOSE:Hyperthermia occurs when heat accumulation surpasses the body's ability for heat dissipation. Many drugs may affect thermoregulation. This narrative review aimed to provide an overview of the current literature concerning reports of drug-associated non-pyrogenic hyperthermia. METHODS:A comprehensive search was...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00228-019-02763-5
更新日期:2020-01-01 00:00:00
abstract::A cross-over study of kinetics has been undertaken in 12 healthy adults volunteers using two sustained-release theophylline products that allow once a day dosing (Theo-Dur tablets and Dilatrane A.P. bead filled capsules) to compare the i.v. pharmacokinetic profiles when taken with an hyperlipidic meal and a balanced s...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00609431
更新日期:1989-01-01 00:00:00
abstract::Bay m 1099 is a newly developed inhibitor of intestinal alpha-glucosidase. Its ability to lower postprandial plasma glucose, serum insulin and C-peptide levels in Type II diabetics has been investigated. Fifteen obese Type II diabetic patients with inadequate metabolic control during sulphonylurea treatment received a...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00607953
更新日期:1986-01-01 00:00:00
abstract:OBJECTIVE:To assess the effect of ciprofloxacin on the pharmacokinetics of ropivacaine. METHODS. In a double-blind, randomised, cross-over study, nine healthy volunteers were treated for 2.5 days with 500 mg oral ciprofloxacin or placebo twice daily. On day 3, they received a single dose of 0.6 mg/kg ropivacaine intrav...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s00228-002-0540-8
更新日期:2003-02-01 00:00:00
abstract::In a double-blind controlled trial 22 patients with mild or moderate essential hypertension were treated with nicardipine 30 mg t.d.s. and 19 patients with propranolol 80 mg t.d.s. as monotherapy for 24 weeks. Blood pressure in both groups at the end of trial was equally and significantly reduced; systolic pressure 22...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00544554
更新日期:1987-01-01 00:00:00
abstract::A phamacokinetic study in man has been made of a new dosage form of diclofenac hydroxyethylpyrrolidine (DIEP); soluble salt packed in sachets was compared with diclofenac sodium as enteric coated tablets. Oral DIEP 2 X 50 mg showed a significant difference in absorption kinetics (ka, lag time and tmax) as compared to ...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00265987
更新日期:1990-01-01 00:00:00
abstract::We have studied pharmacokinetics of a new H2-receptor antagonist, TZU-0460, in patients with varying degrees of renal impairment. The apparent volume of distribution at steady-state was 1.70 l/kg, and the plasma protein binding of TZU-0460 or its active metabolite, desacetyl TZU-0460 was less than 10% in normal subjec...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00608220
更新日期:1986-01-01 00:00:00
abstract:PURPOSE:The purpose of this study is to determine the impacts of CYP3A5 polymorphism on tacrolimus concentration and the proportion of patients within a target therapeutic range during the first week after transplantation together with the 3-month acute rejection rate in kidney transplant patients receiving a minimized...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-015-1990-0
更新日期:2016-03-01 00:00:00
abstract::Clorazepate 20 mg was given i.m. to 49 mothers during the first stage of labour. The elimination of the drug was studied in 27 newborns produced by these mothers. The same dose was given to 13 women who underwent amniocentesis and to 7 women who were breast-feeding. "Total nordiazepam", i.e. the sum of clorazepate and...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00563103
更新日期:1979-04-17 00:00:00
abstract::The effects of short-term lithium (Li) administration on alpha 2-adrenoceptor sensitivity was studied in 10 healthy volunteers and in 15 patients with normothymic, phasic depressive disorders. The GH-clonidine test was used to examine alpha 2-adrenoceptor sensitivity, administered before and after Li treatment (600 mg...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00637595
更新日期:1988-01-01 00:00:00
abstract:OBJECTIVES:A temporal relationship between the increasing use of antibiotics and the increasing levels of antibiotic resistance has been established for Streptococcus pneumoniae. There are also data that support the presence of a geographic correlation between the level of resistance and the pattern of use among differ...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s00228-003-0724-x
更新日期:2004-04-01 00:00:00
abstract::The pharmacokinetics of temocapril hydrochloride, a novel prodrug-type angiotensin-I converting enzyme (ACE) inhibitor, has been studied in patients with mild (Group II) to severe (Group III) renal insufficiency in comparison with subjects with normal renal function (Group I). The pharmacokinetic parameters of the act...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF02284968
更新日期:1992-01-01 00:00:00
abstract::The disposition of paracetamol following an oral dose of 1.0 g was compared in 10 healthy volunteers, 7 patients with moderate chronic renal failure and 6 patients with end stage renal failure on maintenance haemodialysis. Paracetamol absorption was normal in the patients with renal failure. The mean plasma half-life ...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00558162
更新日期:1989-01-01 00:00:00
abstract::A new device for IV admixtures has been developed in Israel, the Vialink minibag. It consists of a partly filled minibag, attached by rubber tubing to a sterile receptable into which various types of vials containing drugs can be firmly inserted. Time and motion studies were conducted to determine the time and cost as...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00194973
更新日期:1994-01-01 00:00:00
abstract::Idrapril is the prototype of a new class of ACE inhibitors, characterised by the presence of a hydroxdmic group. Six untreated in-patients with essential hypertension were given single oral doses of the calcium salt of idrapril, idrapril calcium (200 mg) and placebo according to a double blind, randomised experimental...
journal_title:European journal of clinical pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00194948
更新日期:1995-01-01 00:00:00
abstract::Factors which might affect paracetamol disposition have been studied in a heterogenous group of patients in need of mild analgesia in an intensive care unit. Following oral administration of 1 g of paracetamol, plasma and urinary concentrations of the parent compound and metabolites were assessed by HPLC. The renal cl...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/BF00315104
更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:Fexofenadine is the active metabolite of the non-sedating anti-histamine terfenadine. Pre-licensing clinical trials in over 6000 patients suggested it was effective and well tolerated. OBJECTIVE:To assess the tolerability and safety of fexofenadine immediately after its availability on the UK market in Marc...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章
doi:10.1007/s002280100292
更新日期:2001-07-01 00:00:00
abstract:BACKGROUND:Triptans are contraindicated in patients with known or suspected coronary artery disease (CAD); however, few studies have evaluated triptans in patients with obstructive CAD to quantify the vasoconstrictive effect on diseased coronary vessels. METHODS:Patients undergoing percutaneous transluminal coronary a...
journal_title:European journal of clinical pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00228-005-0988-4
更新日期:2005-11-01 00:00:00