Abstract：
:Acute studies of clonidine suggest that it lowers blood pressure by central enhancement of baroreflex sensitivity coupled with diminished evidence of sympathetic outflow, but longterm clonidine data have not been conclusive. We examined effects of one month of low dose clonidine (0.4 +/- 0.15 mg/day) alone in 13 essential hypertensive men, assessing several biochemical indices of sympathetic function, as well as physiologic parameters, including baroreflex sensitivity, the cold pressor test, and the hypotensive response to alpha adrenergic blockade. Clonidine diminished mean arterial pressure (from 104 +/- 5 to 84 +/- 3 mmHg; p less than 0.01), without associated changes in several biochemical parameters of sympathetic outflow (urinary excretion of catecholamines, metanephrines, and vanillylmandelic acid; all p greater than 0.1). Circulatory baroreflex function was not enhanced by clonidine, during either the amylnitrite test or the phenylephrine test, before or after parasympathetic blockade with atropine. The cold pressor test, an index of efferent sympathetic pressor function, was also unaltered. The enhanced mean arterial pressure response to phentolamine during clonidine therapy (from a fall of 14.8 +/- 4.3 to 39.4 +/- 5.2 mmHg, p less than 0.01), suggested an increase in alpha adrenergic vascular tone, perhaps mediated by clonidine's alpha agonist properties in vascular smooth muscle. The antihypertensive mechanism of longterm low dose clonidine cannot reliably be ascribed either to baroreflex enhancement or to suppression of sympathetic outflow.
journal_name
Eur J Clin Pharmacoljournal_title
European journal of clinical pharmacologyauthors
Cohen IM,O'Connor DT,Preston RA,Stone RAdoi
10.1007/BF00558378subject
Has Abstractpub_date
1981-01-01 00:00:00pages
25-32issue
1eissn
0031-6970issn
1432-1041journal_volume
19pub_type
临床试验,杂志文章,随机对照试验abstract：INTRODUCTION:Reimbursement databases are potentially invaluable tools to develop and conduct pharmacoepidemiological studies on drug use. However, two types of factors that may influence the performance of a database can be distinguished: firstly, factors related to the constitution of the database, and secondly, facto...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-010-0819-0
更新日期：2010-07-01 00:00:00
abstract：:The comparative enzyme inducing effects of rifabutin and the chemically related drug rifampicin have been investigated in 8 normal subjects. Rifampicin 600 mg daily for 7 days caused considerable shortening of the antipyrine half-life and a marked increase in antipyrine clearance, associated with an increased rate of ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00615223
更新日期：1988-01-01 00:00:00
abstract：OBJECTIVE:Little is known about patient compliance with oral adjuvant chemotherapy. It is estimated to be poor especially in Japan, where it is still unusual for patients to be directly informed of their diagnosis of malignancy. 5-Fluorouracil (5-FU) was measured in hair samples to assess patient exposure to 5-FU, and ...
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/s002280050077
更新日期：1996-01-01 00:00:00
abstract：:In a double-blind, placebo-controlled study nasal saline and histamine provocation tests were performed in patients with perennial allergic rhinitis in order to assess changes in eosinophil influx and non-specific nasal reactivity after 8 days of treatment with ipratropium bromide. A "nasal pool" method was used to tr...
journal_title：European journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1007/BF02440856
更新日期：1993-01-01 00:00:00
abstract：:We have studied the pharmacokinetics of fluconazole in five patients on long-term haemodialysis. The single-pass extraction rate of the dialyzer was 59 (3.5)% (n = 4), and the serum concentration was reduced by haemodialysis for 3 or 4 h by 26 (3.2)% (n = 5) and 39 (2.2)% (n = 9) respectively. The estimated amount ext...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00265934
更新日期：1992-01-01 00:00:00
abstract：PURPOSE:Bariatric surgery can influence the prevalence and incidence of comorbidities, as well as the pharmacokinetics of drugs. This might lead to changes in the use of drugs. This study aimed to assess the influence of bariatric surgery on the use of medication in patients before and after surgery, focusing on type, ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-015-1971-3
更新日期：2016-02-01 00:00:00
abstract：:Serotonin (5-HT) stimulates prolactin release. In the present study the ability of dexfenfluramine to increase serum prolactin was used as an index of central 5-HT function after acute and chronic pretreatment of volunteers with fluoxetine. Following a single-blind, random design, on each experimental day each volunte...
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/BF00191908
更新日期：1994-01-01 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：PURPOSE:A variety of diagnostic methods are available to validate the performance of population pharmacokinetic models. Internal validation, which applies these methods to the model building dataset and to additional data generated through Monte Carlo simulations, is often sufficient, but external validation, which req...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-020-03036-2
更新日期：2020-11-11 00:00:00
abstract：PURPOSE:This exploratory study was aimed at elucidating the pharmacogenetics of regulatory nuclear receptors (PXR, CAR, RXRα and HNF4α) and their implications on docetaxel pharmacokinetics and pharmacodynamics in local Chinese nasopharyngeal cancer patients. METHODS:A total of 59 single nucleotide polymorphisms (SNPs)...
journal_title：European journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1007/s00228-013-1596-3
更新日期：2014-02-01 00:00:00
abstract：OBJECTIVE:To investigate the usefulness of the 3-hydroxylation of quinine as a biomarker reaction for the activity of CYP3A4 in man and to study the interindividual variation in the metabolic ratio (MR), i.e. quinine/3-hydroxyquinine. METHODS:Data from a previous study (A) was used for determination of the MR of quini...
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/s00228-003-0575-5
更新日期：2003-05-01 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：:(1) Plasma protein binding of salicylate was studied in 14 patients with cutaneous hepatic porphyria (CHP) and 11 normal subjects using ultrafiltration with centrifugation (membrane cones) and continuous ultrafiltrations. (2) Albumin and haemoglobin levels were significantly reduced in patients with CHP, and salicylat...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00716368
更新日期：1978-06-19 00:00:00
abstract：OBJECTIVE:To determine the incidence of errors in preparing and administering intravenous (i.v.) drugs, identify the stages in the process at which errors occurred and evaluate their clinical importance. METHODS:A prospective ethnographic study using disguised observation was carried out on two wards in one German non...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-003-0689-9
更新日期：2004-01-01 00:00:00
abstract：PURPOSE:Adverse drug events (ADEs) are harmful and occur with alarming frequency in critically ill patients. Complex pharmacotherapy with multiple medications increases the probability of a drug interaction (DI) and ADEs in patients in intensive care units (ICUs). The objective of the study is to determine the frequenc...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-010-0987-y
更新日期：2011-06-01 00:00:00
abstract：:The effects of the beta-blocker atenolol on vigilance, concentration, and psychophysiological condition were determined by measuring visual reaction time and choice reaction time in volunteers subjected to combined physical and mental stress. Atenolol 50 mg or placebo were administered for three days in a double-blind...
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/BF00543710
更新日期：1985-01-01 00:00:00
abstract：:The consumption of various groups of antihypertensive drugs in Spain during the period 1977-1981 has been measured by the DDD method. The total consumption of the drugs did not change much during this time. Combinations of thiazides with other hypotensives accounted for more than half the total antihypertensive drugs ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00542106
更新日期：1983-01-01 00:00:00
abstract：OBJECTIVES:Inhaled corticosteroids (ICS) are widely used in the treatment of asthma. We studied the suspected adverse drug reactions (sADRs) reported during the use of ICS in the Netherlands. METHODS:In the Netherlands, health professionals and patients can report suspected ADRs to the Pharmacovigilance Centre Lareb. ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-006-0102-6
更新日期：2006-05-01 00:00:00
abstract：:It is uncertain as to the extent which gastrointestinal (GI) haemorrhage related to NSAIDs is due to a local, topical effect or to an action related to systemic absorption. We hypothesised that, should systemic drug concentrations be of importance, plasma levels of NSAIDs might be higher in patients who had developed ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00316464
更新日期：1993-01-01 00:00:00
abstract：OBJECTIVE:To investigate the drug interaction potential between itraconazole and nevirapine. METHODS:Our study was conducted in 12 healthy volunteers in two phases. In phase 1 (from days 1-28), all subjects were randomly assigned to a two-way crossover study of a nevirapine regimen (nevirapine 200 mg once daily for 7 ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00228-007-0280-x
更新日期：2007-05-01 00:00:00
abstract：OBJECTIVE:To analyse whether first-time use of antidepressants (incidence) and selection of TCAs (tricyclic antidepressants) versus new-generation drugs are associated with socio-economic status and psychiatric history. METHOD:We conducted a population-based cohort study using registry data covering Funen County, Denm...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-003-0723-y
更新日期：2004-03-01 00:00:00
abstract：:The inhibitory action of azelastine hydrochloride (Azeptin) on the respiratory burst in peripheral polymorphonuclear leukocytes (PMN) and pulmonary alveolar macrophages (PAM) has been studied. Azeptin in vitro suppressed chemiluminescence and superoxide (O2-) generation by human PMN in a dose- and time-dependent manne...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00194963
更新日期：1994-01-01 00:00:00
abstract：OBJECTIVE:We previously found that, compared with healthy subjects. asymptomatic hepatitis-B virus (HBV) carriers displaying slow acetylator phenotype demonstrate a significant prolongation of the elimination half-life of 4-methylaminoantipyrine (MAA) and a decrease in the clearance of formation of 4-aminoantipyrine (A...
journal_title：European journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1007/s002280100341
更新日期：2001-09-01 00:00:00
abstract：:An analytical procedure for the simultaneous determination of pethidine and its N-Demethylated metabolite, norpethidine, in plasma is described. Pethidine and norpethidine are separated by partition chromatography, converted to the trichloroethyl carbamate with trichloroethyl chloroformate and determined by electron c...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00561790
更新日期：1977-01-01 00:00:00
abstract：PURPOSE:To correct overdosing of drugs requiring adjustment based on renal function in intensive-care patients. METHODS:In a prospective intervention study, we estimated individual glomerular filtration rate and assessed whether medication required dose adjustment based on renal function. Senior clinicians received a ...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-009-0643-6
更新日期：2009-08-01 00:00:00
abstract：:The effects of sodium nitroprusside (SNP) and 3-morpholino sydnonimine (SIN-1), isosorbide dinitrate (ISDN) and glyceryl trinitrate (GTN), and molsidomine (the inactive precursur of SIN-1) on monocyte chemotaxis and cyclic GMP (cGMP) concentration were studied. SNP and SIN-1 inhibited monocyte N-formyl-methionyl-leucy...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00315350
更新日期：1993-01-01 00:00:00
abstract：PURPOSE:Our aim was to observe the impact of CYP3A4*1G genetic polymorphism on lipid-lowering efficacy of statins. METHODS:We studied 217 unrelated hyperlipidemic patients who prospectively received atorvastatin and 199 patients who received simvastatin as a single-agent therapy (20 mg day(-1) p.o.) for 4 weeks. Genot...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-008-0502-x
更新日期：2008-09-01 00:00:00
abstract：:The cellular sources or molecular mechanisms responsible for the derangement of vasoactive prostanoid levels during immunosuppressive cyclosporin (CSA) therapy have not been defined. Using cultured rat glomerular mesangial cells (MC), the cytostatic, cytotoxic and prostanoid synthesis modulating effects of CSA and FK-...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF01428385
更新日期：1993-01-01 00:00:00
abstract：:Potentiation of the anticoagulant-effect of warfarin by amiodarone was studied in 30 patients. Thirteen received both drugs concurrently, and 17 received warfarin alone and the combination sequentially. Warfarin doses were adjusted to maintain the prothrombin time between 25-30% of control and its kinetics were compar...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/BF00543320
更新日期：1985-01-01 00:00:00
abstract：:Information must be collected, evaluated and utilized to support every qualified activity. Medicine, with a written scientific tradition stretching back more than 2,000 years, is no exception. Here, we discuss a number of important items associated with the establishment of a drug information centre run by clinical ph...
journal_title：European journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1007/s00228-013-1484-x
更新日期：2013-05-01 00:00:00
