Abstract：
:The present study was designed to investigate the effects of raised intragastric pH on the absorption of theophylline from a sustained-release formulation. Six healthy male volunteers participated in the cross-over randomised study and on one of two occasions were pretreated with 240 mg omeprazole, administered in three divided doses over the 22 h preceding the test. The sulphasalazine/sulphapyridine method of assessing oral-caecal transit time was implemented in order to assess upper bowel and colonic absorption. The mean fraction absorbed-time profile was calculated from serial serum theophylline concentration measurements by a modification of the Wagner-Nelson equation. During hypochlorhydria the mean oral-caecal transit time was 4.6 h, mean time to 90% absorption 6.8 h, and the percentage theophylline presumably to be absorbed from the colon 32.3. The corresponding values with normochlorhydria were, respectively, 3.8 h, 8.5 h, and 57.5%. The shorter oral-caecal transit time and lesser upper bowel absorption during normochlorhydria is postulated to result from motilin release due to duodenal acidification. Gastric hypoacidity resulted in significantly increased cumulative fractions of theophylline absorbed during a 3.5 h period, starting 0.5 h after breakfast. Possibly hypochlorhydria amplifies the increased motility which follows the intake of a meal, resulting in increased peristalsis and antiperistalsis, with more rapid drug absorption.
journal_name
Eur J Clin Pharmacoljournal_title
European journal of clinical pharmacologyauthors
Sommers DK,van Wyk M,Snyman JR,Moncrieff Jdoi
10.1007/BF01740660subject
Has Abstractpub_date
1992-01-01 00:00:00pages
141-3issue
2eissn
0031-6970issn
1432-1041journal_volume
43pub_type
临床试验,杂志文章,随机对照试验abstract：OBJECTIVE:The aim of this investigation was to clarify the stereoselective properties in lansoprazole metabolism by monitoring the metabolic consumption for each enantiomer and the formation of the main metabolites, lansoprazole sulfone and 5-hydroxylansoprazole, in the presence of human liver microsomal enzymes. METH...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s002280100374
更新日期：2001-12-01 00:00:00
abstract：PURPOSE:In the management of melanoma, BRAF inhibitors yield fast disease control; however, the duration of response does not last very long. Ipilimumab-an anti-CTLA4 antibody on the other hand-provides longer-lasting results of treatment but achieves less favorable responses. The aim of this study was to assess the ef...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-018-2590-6
更新日期：2019-03-01 00:00:00
abstract：:A series of elegant experimental studies and careful clinical observation over a decade or more have led to the concept of 'infarct expansion' and 'remodelling' of the heart, culminating in a number of major mortality studies indicating the effectiveness of angiotensin-converting enzyme (ACE) inhibitors in patients af...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,评审
doi：
更新日期：1996-01-01 00:00:00
abstract：:A single dose of 60 mg trimetazidine (the normal daily dose) improved exercise capacity in angina pectoris, as reflected by an increase in the duration of exercise, total work performed, and improvement in ECG signs of ischaemia. All these effects occurred without any detectable chronotropic or vasomotor effect. The i...
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/BF00544569
更新日期：1987-01-01 00:00:00
abstract：PURPOSE:This study compares the in vivo relative lung bioavailability of Hydrofluoroalkane (HFA) Seretide delivered via unprimed and unwashed Aerochamber Plus (AP) or Volumatic (VM) spacers, a integrated breath-actuated vortex Synchro-Breathe (SB) device and an Evohaler pMDI (EH) device using adrenal suppression and ea...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00228-010-0989-9
更新日期：2011-04-01 00:00:00
abstract：OBJECTIVE:Nafamostat mesilate, a potent protease inhibitor, is widely used for the treatment of pancreatitis, disseminated intravascular coagulation and as an anticoagulant in haemodialysis. However, hyperkalaemia associated with nafamostat mesilate has been reported. It is thought to be due to decreased urinary potass...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s002280050176
更新日期：1996-01-01 00:00:00
abstract：:Investigations were undertaken to evaluate which uraemic solutes decrease drug protein binding. This was done by performing HPLC-fractionation of uraemic biological fluids and studying the effect of addition of a lyophilisate of each fraction to normal plasma containing standard quantities of radiolabelled drugs. From...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,评审
doi：10.1007/BF01428386
更新日期：1993-01-01 00:00:00
abstract：:A radioreceptor assay (RRA) recently developed in this laboratory for beta-adrenoceptor antagonists in plasma was evaluated in normal volunteers and compared with a radioimmunoassay (RIA) for propranolol. The RRA depends upon the ability of beta-adrenoceptor antagonists to complete with a radiolabelled ligand for beta...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00558447
更新日期：1980-05-01 00:00:00
abstract：:The effects of the ingestion of food and digoxin on the cardiovascular system alone and in combination have been observed in eight healthy subjects. A positive inotropic response was seen following food (2.5 MJ) and intravenous digoxin (0.01 mg/kg) with significant decreases in QS2Index (QS2I) pre-ejection period (PEP...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00615959
更新日期：1986-01-01 00:00:00
abstract：PURPOSE:The role of pharmacogenomics, clinical and demographic parameters in pharmacokinetic predictions was evaluated in patients receiving mycophenolic acid (MPA). METHODS:A cohort study design of patients with glomerulonephritis secondary to lupus nephritis and anti-neutrophil cytoplasmic antibody (ANCA) vasculitis...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-010-0846-x
更新日期：2010-11-01 00:00:00
abstract：OBJECTIVE:A prospective study was undertaken to determine the transcorneal penetration of three topically applied fluoroquinolones into aqueous humour. METHODS:Two hundred and twenty-four patients undergoing cataract extraction received 0.3% ciprofloxacin, norfloxacin or ofloxacin eye drops by two different administra...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s002280050371
更新日期：1997-01-01 00:00:00
abstract：PURPOSE:To illustrate the interface of pharmacogenetics and therapeutic drug monitoring and to estimate target blood level for imatinib in the treatment of chronic myelogenous leukemia METHODS:A literature review to provide the evidence and necessary data to support the case for the interface, and quantitative analysi...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-009-0779-4
更新日期：2010-04-01 00:00:00
abstract：OBJECTIVE:Psychosis is a common complication of the drug treatment of Parkinson's disease (PD). Treatment of this complication is difficult as most antipsychotic drugs worsen motor symptoms of PD. Only the atypical antipsychotic clozapine improves psychosis without worsening of parkinsonism. The aim of the present stud...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-002-0441-x
更新日期：2002-05-01 00:00:00
abstract：PURPOSE:Treatment failures following vancomycin therapy in patients with methicillin-resistant Staphylococcus aureus infections have led to the utilization of higher doses of this antibiotic to achieve the trough concentrations of 10-20 μg/mL recommended by the Infectious Diseases Society of America clinical practice g...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,评审
doi：10.1007/s00228-012-1259-9
更新日期：2012-09-01 00:00:00
abstract：:We have studied the pharmacodynamic effects of ramipril, propranolol, and their combination, as well as the effect of propranolol on the pharmacokinetics of ramipril in 12 healthy men (age 24 (SD 6) y, weight 72 (7) kg). Propranolol and placebo, ramipril and placebo, or propranolol and ramipril were given orally for f...
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/BF00315392
更新日期：1993-01-01 00:00:00
abstract：:The pharmacokinetics of 3H-16-epi-gitoxin have been investigated after oral administration: The peak serum level occurred after 30-60 min, and its subsequent decline was in two phases with half-lives of 3.5 and 19.5 h, respectively. Within 3 days 66-70% of the administered radioactivity were eliminated by renal excret...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00562938
更新日期：1977-07-19 00:00:00
abstract：:We have studied the transfer of the analgesic ketorolac tromethamine into breast milk in ten women aged between 22 and 35 years. Ketorolac administration was started between 2 and 6 days after delivery. The breast milk was not fed to the infant because of maternal antibiotic use (6 patients) or because of jaundice of ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00558080
更新日期：1989-01-01 00:00:00
abstract：:The use of bioelectrical impedance (BI) analysis as a non-invasive approach for individualizing gentamicin therapy in newborn infants has been investigated in a two phase study. In Phase I, 1/impedance and length were identified as statistically significant predictors of the distribution volume of gentamicin (Adj R2 =...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00271367
更新日期：1993-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVES:Laryngoscopy and tracheal intubation are associated with hemodynamic responses that might increase morbidity and mortality in some patients. Lornoxicam is a nonsteroidal anti-inflammatory drug, which, when added to fentanyl, successfully attenuated the pressor response of intubation. The aim o...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00228-011-1017-4
更新日期：2011-08-01 00:00:00
abstract：:Changes in venous haemodynamics were studied after administration of a single dose of 3 g Heptaminol Adenosine Phosphate (HAP) to 30 subjects with primary varicose veins. Strain gauge plethysmography was used to observe changes in venous volume and in maximal venous outflow, 1, 2, 3 and 4 h after dosing. A significant...
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/BF00609421
更新日期：1989-01-01 00:00:00
abstract：:The pharmacokinetics of phenylethylmalonamide (PEMA) were studied in 6 elderly men after oral administration of a single 400 mg dose. Peak PEMA serum levels were obtained within 4 h of intake, half-life values ranged from 30.7-57.9 h in these elderly men. The elimination half-life was twice as long when compared to a ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00637644
更新日期：1987-01-01 00:00:00
abstract：:Maternal and umbilical serum concentrations of atenolol, a hydrophilic, cardioselective beta-adrenoceptor antagonist, were studied at delivery in seven cases of pregnancy hypertension. The drug had been administered to each patient for at least one week. Atenolol was detected in both maternal and umbilical serum in si...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00607437
更新日期：1978-11-16 00:00:00
abstract：PURPOSE:The quality of drug therapy is an important issue for nursing homes. This study aimed to assess the prevalence of polypharmacy and potentially inappropriate medications (PIMs) in a large sample of nursing home residents by using the data recorded during the preparation of pill dispensers. METHODS:This is a cro...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-016-2193-z
更新日期：2017-05-01 00:00:00
abstract：:Data on forged prescriptions in Sweden in 1982-1986 were studied as an indicator in an epidemiological survey of medication abuse. The annual number of prescription forgeries doubled during the 5-year period. Psychotropic drugs accounted for 62% and analgesics for 25% of all forgeries. Benzodiazepines were the major s...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00637747
更新日期：1989-01-01 00:00:00
abstract：PURPOSE:The aim of this study was to add to the body of evidence on statin-induced gynecomastia based on data retrieved from the Italian spontaneous adverse drug reaction (ADR) reporting database. METHODS:Spontaneous ADR reports collected in the Italian database up to 31 December 2010 were assessed on a case-by-case b...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-012-1218-5
更新日期：2012-06-01 00:00:00
abstract：:The effect of the GABAergic drug sodium valproate (SV) on the exercise-induced release of growth hormone (GH) was investigated in 10 healthy males. The exercise test consisted of using a stationary bicycle ergometer at 450 kg/min for 20 min. SV 600 mg blunted the increase in GH induced by the exercise, suggesting GABA...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00544075
更新日期：1985-01-01 00:00:00
abstract：:Human calcitonin (hCT) injected into the lumen of the descending colon of normal human subjects was absorbed within minutes and could be recognized intact in plasma as shown by RIA in combination with reverse-phase HPLC. The absorption was low and variable, with bioavailabilities ranging from 0.01% to 2.7% relative to...
journal_title：European journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1007/BF02285096
更新日期：1992-01-01 00:00:00
abstract：OBJECTIVE:To investigate whether an association between the use of selective serotonin reuptake inhibitor (SSRI) antidepressants and abnormal bleeding is demonstrated in a large population study. METHODS:An observational cohort study using cohorts from the Drug Safety Research Unit's prescription event monitoring data...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s002280100263
更新日期：2001-05-01 00:00:00
abstract：BACKGROUND:Maintenance of the structural and functional integrity of the skeleton is a critical function of a continuous remodeling driven by highly associated processes of bone resorption and synthetic activities driven by osteoclasts and osteoblasts, respectively. Acceleration of bone turnover, accompanied with a dis...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,评审
doi：10.1007/s00228-006-0174-3
更新日期：2006-10-01 00:00:00
abstract：:The aim of laboratory screening in Phase I is to exclude subjects with subclinical illness, who might be at increased risk in the study, and who might also adversely influence interpretation of the results. A new method for laboratory screening, based on Bayesian probability theory, is proposed, which consists of: 1. ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00280939
更新日期：1990-01-01 00:00:00
