Abstract：
:A study, using non-invasive techniques, was carried out in ten patients with essential hypertension to examine the mechanism of the hypotensive effect of propranolol when used in combination with a potent vasodilator antihypertensive - minoxidil. The hypotensive effect of minoxidil, a mean (+/- SEM) decrease of 42.4 +/- 4.3 mm Hg, was accompanied by a marked increase in heart rate, cardiac index and plasma renin activity and a significant decrease in total peripheral resistance, limb vascular resistance and pre-ejection period. Addition of propranolol further reduced mean arterial pressure by an average of 12.9 +/- 2.0 mm Hg. Propranolol returned cardiac index to control values and total peripheral resistance index rose but not to control levels. Plasma renin activity was significantly reduced by propranolol. By multiple regression analysis no correlation was found between propranolol-induced decrease in mean arterial pressure and changes in cardiac index, total peripheral resistance index or plasma renin activity. Quantitatively, the reduction in cardiac index observed probably accounted for the hypotensive effect of propranolol. The role of plasma renin activity reduction in the hypotensive effect of propranolol in this situation remains to be clarified. The findings in the present study were consonant with the known actions of vasodilator antihypertensive agents and propranolol and indicate the applicability of non-invasive methodology to the investigation of cardiovascular drugs in man.
journal_name
Eur J Clin Pharmacoljournal_title
European journal of clinical pharmacologyauthors
O'Malley K,Velasco M,Wells J,McNay Jdoi
10.1007/BF00606548subject
Has Abstractpub_date
1976-03-22 00:00:00pages
355-60issue
5-6eissn
0031-6970issn
1432-1041journal_volume
09pub_type
杂志文章abstract：:Plasma levels of canrenone and 'total metabolites' after base hydrolysis were compared in young and elderly subjects following single and multiple doses of spironolactone. After the initial dose on Day 1, plasma levels of canrenone and 'total metabolites' were higher in the young than in the elderly group, and signifi...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00549591
更新日期：1984-01-01 00:00:00
abstract：:Interaction of the main metabolites of diazepam and chlordiazepoxide with alcohol was measured in two subacute double-blind cross-over experiments on 40 healthy, young volunteers. The drugs were administered for two week periods. The variables measured were choice reaction time and accuracy, eye-hand co-ordination, di...
journal_title：European journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1007/BF00644607
更新日期：1978-07-30 00:00:00
abstract：PURPOSE:The purpose of this study was to investigate the interactions of itraconazole (ITCZ) with orally administered calcineurin inhibitors (CNIs) in Japanese allogeneic hematopoietic stem cell transplant (HSCT) recipients. METHODS:Sixteen HSCT patients (8 patients each receiving tacrolimus or cyclosporine) were enro...
journal_title：European journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1007/s00228-013-1471-2
更新日期：2013-06-01 00:00:00
abstract：BACKGROUND:Tamoxifen is one of the cornerstones of endocrine therapy for breast cancer. Recently, the decreased activity CYP3A4*22 allele and the loss of function CYP3A5*3 allele have been described as potential factors that could help to explain the inter-patient variability in tamoxifen metabolism. The aim of this st...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-017-2323-2
更新日期：2017-12-01 00:00:00
abstract：OBJECTIVE:To investigate (1) the pharmacokinetic and pharmacodynamic profiles of desmopressin in men from an age group with a high incidence of nocturia; and (2) circadian variation in the pharmacokinetic parameters. METHODS:The study had an open, randomised, four-way cross-over design. Desmopressin was administered o...
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/s00228-004-0781-9
更新日期：2004-08-01 00:00:00
abstract：:We gave 24 healthy elderly volunteers with a perceived sleep onset of at least 30 minutes zolpidem 5 mg, zolpidem 10 mg, or placebo for 7 days in a double-blind, three-way, crossover study. The morning after nocturnal dosing, psychomotor performance and cognitive ability were measured using tests which are sensitive t...
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/BF02284957
更新日期：1992-01-01 00:00:00
abstract：:Pharmacokinetic and pharmacodynamic properties of a new controlled-release (CR) formulation of metoprolol have been compared with those of atenolol. Metoprolol CR (100 mg and 200 mg), atenolol (50 mg and 100 mg) and placebo were each given once daily for four days in a double-blind, cross-over study to ten healthy men...
journal_title：European journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1007/BF00578408
更新日期：1988-01-01 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
abstract：:Eight patients were given flunitrazepam 2 mg orally, once daily for 28 consecutive days. The time-course of the plasma concentration of unchanged flunitrazepam and its principal metabolites were studied in detail after the first and last doses. Additional blood samples were collected immediately before administration ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00561899
更新日期：1980-01-01 00:00:00
abstract：OBJECTIVE:To study, in a large cohort, the association between the use of anti-asthmatic drugs during pregnancy and pregnancy complications. METHODS:Using the Swedish Medical Birth Register, we identified 24,369 women who reported the use of anti-asthmatic drugs in early pregnancy and 7778 women who were prescribed su...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-006-0257-1
更新日期：2007-04-01 00:00:00
abstract：:The pharmacokinetics of ethanol in plasma and whole blood have been investigated and the results used to estimate the volume of total body water (TBW) by means of the dilution principle. Fifteen men (mean age 62 y) were given 0.6 g ethanol/kg body weight as an intravenous infusion over 1 h. The peak concentration of e...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00280133
更新日期：1992-01-01 00:00:00
abstract：INTRODUCTION:Epidural hydromorphone could be useful in obstetric analgesia as there is a need for a more water-soluble opioid than sufentanil or fentanyl with prolonged analgesic effect. To our knowledge, the pharmacokinetics of epidural hydromorphone has not been evaluated in parturients. MATERIALS AND METHODS:In thi...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-020-02880-6
更新日期：2020-07-01 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：PURPOSE:Tocilizumab, a monoclonal antibody directed against the IL-6 receptor, might block detrimental effects of IL-6 on transplantation. IL-6 plays a considerable role in cytokine storm after stem cell transplantation as well as graft versus host disease, and it has also been shown to be involved in solid organ allog...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,评审
doi：10.1007/s00228-020-02864-6
更新日期：2020-06-01 00:00:00
abstract：:The debrisoquine/sparteine-type polymorphism of drug oxidation and the polymorphism for acetylation are two common inherited variations in human drug metabolism. The phenotypes for hydroxylation and acetylation can be predicted be newly developed methods based on mutation-specific amplification of DNA by the polymeras...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF02220616
更新日期：1992-01-01 00:00:00
abstract：OBJECTIVES:The aims of the study were to assess the correlation between the plasma concentration of ophthalmic timolol and cardiovascular parameters, and the influence of timolol on advanced haemodynamic variables, such as stroke (SI), cardiac (CI) and systemic vascular resistance (SVRI) indices and arterial pulse wave...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.1007/s00228-005-0945-2
更新日期：2005-07-01 00:00:00
abstract：:In a double-blind, placebo-controlled cross-over study, the plasma atrial natriuretic peptide (ANP) levels of nine young and ten elderly hypertensive patients were compared after placebo and after treatment with 120 mg verapamil given three times daily over 4 weeks. During placebo, plasma ANP levels proved to be highe...
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/BF01409206
更新日期：1990-01-01 00:00:00
abstract：:Factors influencing the disposition of clotiazepam in man were evaluated in a series of pharmacokinetic studies in healthy volunteers given a single 5 mg dose. Old age caused an increased volume of distribution of clotiazepam in women, and its clearance tended to be reduced in elderly men. Use of oral contraceptives, ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00546709
更新日期：1984-01-01 00:00:00
abstract：:For model identification and parameter estimation in the framework of linear pharmacokinetics it is most often assumed that the disposition function is a finite sum of exponential functions with time constants lambda i and associated coefficients Ci. Least-square fitting procedures are used to estimate the coefficient...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00315312
更新日期：1993-01-01 00:00:00
abstract：:Previous studies showed that probucol significantly lowered both LDL cholesterol and HDL cholesterol. In addition, there is evidence that as an essential antioxidant probucol causes variations in cellular interactions and cardiovascular functions in patients. Therefore, 14 hypercholesterolemic men were investigated be...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:An open, dose-titration study of alfuzosin, a new selective post-synaptic alpha 1-adrenoceptor antagonist with additional direct vasodilator properties has been performed. After a 3-week run-in placebo period, 12 patients with essential hypertension received alfuzosin 5 mg oral b.d., and then the dose was doubled ever...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00555503
更新日期：1988-01-01 00:00:00
abstract：:The pharmacokinetics of metoclopramide has been studied after acute IV administration to 12 patients with hepatic cirrhosis (6 with and 6 without ascites) and 6 control subjects. The elimination half-life was significantly longer in patients (11.4 h and 9.9 h in those with and without ascites, respectively, vs 6.4 h i...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00265857
更新日期：1991-01-01 00:00:00
abstract：:Glycerol 50 g infused i.v. over 2 to 6 h is widely used to treat cerebral oedema in patients with acute stroke. Its transit through the blood-cerebrospinal fluid barrier in subjects with uninflamed meninges has now been examined. In 7 patients with an external ventriculostomy for occlusive hydrocephalus, each of whom ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00278481
更新日期：1992-01-01 00:00:00
abstract：:The effect of the aminoglycosides amikacin, gentamicin, netilmicin sisomicin and tobramycin on the proximal tubule of the human kidney was investigated in 78 healthy subjects. Fifteen adults were each given gentamicin, sisomicin or tobramycin 3 mg/kg bodyweight, 10 subjects received netilmicin 3 mg/kg or amikacin 15 m...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00609758
更新日期：1978-05-17 00:00:00
abstract：:In this paper pharmaceutical and biopharmaceutical aspects on the development of long-acting nitrate delivery systems are reviewed. Basic considerations and requirements are also discussed. Recent product development activities are presented, with an emphasis on nitroglycerin in transdermal form and oral isosorbide-5-...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,评审
doi：10.1007/BF01417560
更新日期：1990-01-01 00:00:00
abstract：OBJECTIVE:The pharmacokinetics of orally and intravenously administered valsartan were determined in two studies. In a first pilot study, three i.v. doses of valsartan were given in an ascending manner (5, 10 and 20 mg) to evaluate tolerability and basic pharmacokinetics of the i.v. formulation. In a second study, the ...
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/s002280050259
更新日期：1997-01-01 00:00:00
abstract：:Drug shortages in developed countries pose a serious public health problem and have far-reaching implications for healthcare providers and their patients. Given the current state of the market, with the limited number of manufacturers and the array of manufacturing quality issues, drug shortages have become a global c...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,评审
doi：10.1007/s00228-014-1747-1
更新日期：2014-12-01 00:00:00
abstract：OBJECTIVE:Zuojin Pill has been shown to inhibit the cytochrome P450 (CYP) 2D6 isoenzyme in vitro. In Chinese individuals, CYP 2D6*10 is the most common allele with reduced enzyme activity. In this study, we investigated the pharmacokinetic interaction between Zuojin Pill and the sensitive CYP2D6 probe dextromethorphan ...
journal_title：European journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1007/s00228-016-2048-7
更新日期：2016-06-01 00:00:00
abstract：:Pharmacokinetic and metabolic studies with 3H-etilefrine were performed to assess the importance of a first-pass effect on the pharmacodynamic action of this sympathomimetic amine. Identical amounts of 3H-activity, ca. 80% of the dose, were excreted in the urine after intravenous or oral administration, which indicate...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00614015
更新日期：1975-12-19 00:00:00
abstract：OBJECTIVE:The concentration of flecainide in hair was measured to determine its value as an index of individual drug-taking history. METHODS:Hair samples obtained from 15 patients treated with flecainide for more than 1 month were cut into 1-cm-long portions successively from its scalp end. The concentration of flecai...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-002-0450-9
更新日期：2002-05-01 00:00:00
