Abstract：
:1. The effects of the voltage dependent calcium channel blocking agent nifedipine, and of a calcium free bathing medium, on the responses of human blood vessels obtained postmortem to various agonists have been compared with those of the rat aorta. The human vessels studied were digital arteries, basilar arteries and metatarsal veins. 2. Responses to potassium chloride (5-80 mM), noradrenaline (10(-9)-10(-4) M), 5-hydroxytryptamine (10(-8)-10(-4) M) and U46619 (10(-11)-10(-6) M), in the presence and absence of nifedipine (1, 10, and 100 nM) or in a calcium-free bathing medium, were assessed using an area-under-curve analysis. 3. In general, the order of sensitivity of the vessels to inhibition of agonist induced contractures by nifedipine was basilar arteries greater than metatarsal veins = digital arteries = rat aorta. 4. For all the vessels, the order of sensitivity for antagonism of responses to the agonists by nifedipine was potassium chloride greater than 5-hydroxytryptamine = noradrenaline greater than U46619. 5. A calcium free bath inhibited responses of digital arteries to potassium chloride more than noradrenaline, 5-hydroxytryptamine or U46619, and responses of rat aorta to a greater extent than responses of the digital arteries. 6. In the rat aorta, a calcium-free bath inhibited responses to all agonists (except KCl) to a greater degree than did nifedipine. 7. We conclude that inhibition of extracellular calcium entry through voltage dependent calcium channels affects contractile responses of different blood vessels to different extents, and, within the same blood vessel, responses to different contractile agonists to different extents.
journal_name
Br J Clin Pharmacoljournal_title
British journal of clinical pharmacologyauthors
Iwanov V,Moulds RFdoi
10.1111/j.1365-2125.1991.tb03856.xsubject
Has Abstractpub_date
1991-01-01 00:00:00pages
47-54issue
1eissn
0306-5251issn
1365-2125journal_volume
31pub_type
杂志文章abstract：:Ten healthy volunteers were treated for 4 days with 160 mg propranolol HCl and placebo in random order. At the end of each treatment salivary antipyrine kinetics and the plasma kinetics and urinary excretion of paracetamol and its major metabolites were measured following a 1500 mg oral dose. Propranolol prolonged the...
journal_title：British journal of clinical pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1111/j.1365-2125.1990.tb03631.x
更新日期：1990-02-01 00:00:00
abstract：:We studied in a sleep laboratory the effects of bedtime 15 mg midazolam and 20 mg midazolam on the sleep and morning performance of healthy subjects with polygraphically verified sleep onset insomnia. Six subjects received 15 mg midazolam and six subjects received 20 mg midazolam for 14 consecutive nights which were p...
journal_title：British journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1111/j.1365-2125.1983.tb02279.x
更新日期：1983-01-01 00:00:00
abstract：AIMS:Adenosine monophosphate (AMP) acts indirectly via primed airway mast cells to induce bronchial hyper-responsiveness, which in turn correlates with eosinophilic asthmatic inflammation and atopic disease expression. We evaluated single and short-term dosing effects of a modern histamine H1-receptor antagonist, levoc...
journal_title：British journal of clinical pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1111/j.1365-2125.2004.02110.x
更新日期：2004-07-01 00:00:00
abstract：:A new anti-spasticity agent, brolitene, has been assessed in patients with spasticity of spinal or cerebral origin. Twenty-seven patients were entered in a double-blind cross-over trial lasting 6 weeks, using a fixed dose of six tablets (1200 mg brolitene) per day. Clinical assessment failed to show any therapeutic ef...
journal_title：British journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1111/j.1365-2125.1976.tb00641.x
更新日期：1976-10-01 00:00:00
abstract：:The direct-acting vasodilator, endralazine, in combination with a beta-adrenoceptor blocker significantly reduced the blood pressures of normotensive volunteers and of patients with essential hypertension. The mean terminal elimination half-life for endralazine of 136 min in hypertensive patients did not differ signif...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1983.tb02139.x
更新日期：1983-07-01 00:00:00
abstract：:Submaximal dose pentagastrin tests conducted in normal male volunteers with L-643.441, a novel histamine H2-receptor antagonist, indicate that it is a potent and long-acting inhibitor of gastric acid secretion. The effect appears dose-dependent and single doses of 50 mg are sufficient to reduce secretory potential by ...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1985.tb05043.x
更新日期：1985-08-01 00:00:00
abstract：:1 To compare the haemodynamic effects of secondary characteristics of beta-adrenoceptor blockers with an angiotensin converting enzyme inhibitor forty patients with previously untreated mild to moderate hypertension were prescribed either atenolol 50-100 mg day-1, labetalol 200-800 mg day-1, pindolol 10-30 mg day-1 or...
journal_title：British journal of clinical pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1111/j.1365-2125.1987.tb03157.x
更新日期：1987-08-01 00:00:00
abstract：:1 A method for the assay of debrisoquine 4-hydroxylase activity in vitro by microsomal fractions of human liver is described. The assay utilises gas chromatography-mass spectrometry with d9-4-hydroxydebrisoquine as internal standard. 2 The limit of detection of 4-hydroxydebrisoquine was 2 ng ml -1 and the coefficient ...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1982.tb01430.x
更新日期：1982-05-01 00:00:00
abstract：:1. The aim of this study was to investigate the dose-related effects of ibuprofen (placebo, 400 and 800 mg rac-ibuprofen [Aktren], administered orally) on experimentally-induced tonic and phasic pain. 2. Eighteen volunteers participated in this randomized, double-blind, three-fold cross-over study. Measurements were o...
journal_title：British journal of clinical pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1111/j.1365-2125.1994.tb05712.x
更新日期：1994-05-01 00:00:00
abstract：AIM:The aim was to investigate the population pharmacokinetics of levamisole in children with steroid-sensitive nephrotic syndrome. METHODS:Non-linear mixed effects modelling was performed on samples collected during a randomized controlled trial. Samples were collected from children who were receiving 2.5 mg kg(-1) l...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/bcp.12607
更新日期：2015-08-01 00:00:00
abstract：:Ten healthy normal volunteers received an intravenous infusion of erythromycin lactobionate over 60 min to a total dose of 800 mg (n = 9), and 524 mg (n = 1). Blood samples were collected at 10 min intervals for 100 min and gastric contents aspirated, via a nasogastric tube, from pre-dose to 105 min after start of inf...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1986.tb05193.x
更新日期：1986-03-01 00:00:00
abstract：AIMS:Canagliflozin is a recently approved drug for use in the treatment of type 2 diabetes. The potential for canagliflozin to cause clinical drug-drug interactions (DDIs) was assessed. METHODS:DDI potential of canagliflozin was investigated using in vitro test systems containing drug metabolizing enzymes or transport...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/bcp.13186
更新日期：2017-05-01 00:00:00
abstract：AIMS:The aims of the study were to determine the effect of advice from the Scottish Medicines Consortium (SMC) on the use of medicines within Scotland's National Health Service (NHS) and generate hypotheses that may explain differences in the impact of advice on the use of individual medicines. METHODS:A retrospective...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.2010.03826.x
更新日期：2011-02-01 00:00:00
abstract：:Since hepatic clearance of ICG is reduced by H2-receptor antagonists in normal subjects, it has been suggested that they reduce liver blood flow. We have studied the effect of intravenous ranitidine on ICG clearance in twelve patients with chronic liver disease. Wedged and free hepatic venous pressure were measured be...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1983.tb04973.x
更新日期：1983-08-01 00:00:00
abstract：AIM:To assess the effect of Schisandra sphenanthera extract (SchE) on the pharmacokinetics of tacrolimus in healthy volunteers. METHODS:Twelve healthy male volunteers were orally treated with SchE, three capsules twice daily for 13 days. Pharmacokinetic investigations of oral tacrolimus administration at 2 mg were per...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.2007.02922.x
更新日期：2007-10-01 00:00:00
abstract：:1. A novel formulation of nicardipine (50% standard (short acting), 50% sustained release) was evaluated in mild hypertension in a double-blind, randomized, placebo-controlled study, using clinic measurements (Hawksley) augmented by home recorded blood pressures (Copal UA 251). 2. Nicardipine 60 mg twice daily for 28 ...
journal_title：British journal of clinical pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1111/j.1365-2125.1989.tb03418.x
更新日期：1989-05-01 00:00:00
abstract：:1 Methimazole plasma concentrations were measured in two groups of hyperthyroid subjects after the oral administration of either carbimazole or methimazole. 2 With the HPLC method it was also possible to measure the concentration of a methimazole metabolite, 3-methyl-2-thiohydantoin in one patient. 3 Large interindivi...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1980.tb05823.x
更新日期：1980-02-01 00:00:00
abstract：AIMS:In vitro data indicate that imipramine (IMI), a widely used tricyclic antidepressant drug, is N-demethylated by several isoforms of cytochrome P450, which include CYP3A4. The aim of this study was to investigate the role of CYP3A in the in vivo N-demethylation of IMI. METHODS:Healthy subjects were given troleando...
journal_title：British journal of clinical pharmacology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1046/j.1365-2125.1997.00649.x
更新日期：1997-08-01 00:00:00
abstract：WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT:Structured medication interviews improve the medication history upon hospitalization. Pharmacy records are valid lists of the prescribed medications available to individual patients. In Denmark, treating doctors now have access to their patients' pharmacy records through a real-...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.2007.03017.x
更新日期：2008-02-01 00:00:00
abstract：AIM:To evaluate cases of deep vein thrombosis (DVT) and pulmonary embolism (PE) reported in a prescription event monitoring study of Yasmin, an oral contraceptive. METHODS:Reports of DVT/PE and events suggestive of DVT/PE were followed up by questionnaire. RESULTS:Thirteen cases (DVT five; PE eight), each with possib...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.2005.02373.x
更新日期：2005-07-01 00:00:00
abstract：:1. Hydrochlorothiazide (HCT, 50-75 mg) was administered orally to seven patients with cardiac failure. 2. Plasma levels and urinary concentration of HCT were determined by GLC. 3. The gastrointestinal uptake of the diuretic in three patients was reduced to approximately half that seen in healthy controls. 4. Plasma ha...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1979.tb04646.x
更新日期：1979-06-01 00:00:00
abstract：:The plasma concentrations of sodium cromoglycate were measured for 4 h following a single dose of 20 mg given by inhalation to six normal volunteers. A series of forced expiratory manoeuvres was performed 2 h after the dose, which resulted in a rapid and marked increase in the plasma concentrations of the drug. A simi...
journal_title：British journal of clinical pharmacology
pub_type： 临床试验,杂志文章
doi：10.1111/j.1365-2125.1989.tb03450.x
更新日期：1989-06-01 00:00:00
abstract：:1. To assess the risk of end-stage renal disease (ESRD) associated with the regular use of three classes of non-narcotic analgesics, we performed a case-control study of 340 patients with ESRD on a haemodialysis maintenance program and 673 hospital controls. 2. The overall odds ratio estimate for non-narcotic analgesi...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1990.tb03841.x
更新日期：1990-11-01 00:00:00
abstract：AIMS:The objectives were to investigate the pharmacokinetics, pharmacodynamics and safety of ilaprazole infusion in healthy subjects and patients with esomeprazole as positive control, and then recommend the dosage regimen for Phase 2b/3 studies. METHODS:Three clinical studies were performed. First, 16 healthy subject...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1111/bcp.14076
更新日期：2019-11-01 00:00:00
abstract：:1. The beta-adrenergic blocking potencies of practolol, ICI 66082, tolamolol, acebutolol, H 93/26, H 87/07, pindolol and Ro 3-4787 were compared with that of propranolol, on human and rat adipocytes. 2. A good correlation was found between the potencies on adipocytes of the two species but not between our results and ...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1975.tb02776.x
更新日期：1975-08-01 00:00:00
abstract：AIMS:To compare the airway potency, systemic activity and therapeutic index of three inhaled corticosteroids that differ in glucocorticoid receptor binding affinity, physicochemical and pharmacokinetic properties. METHODS:This escalating-dose, placebo-controlled, cross-over study randomised adults with asthma to 1 or ...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/bcp.14406
更新日期：2020-06-02 00:00:00
abstract：:Plasma and synovial fluid concentrations of the enantiomers of flurbiprofen were measured in 15 rheumatoid patients receiving 100 mg racemic flurbiprofen twice daily. Pharmacokinetic parameters showed considerable variability within the group of patients, although differences in S(+)/R(-) plasma concentration ratios w...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.1991.tb03865.x
更新日期：1991-01-01 00:00:00
abstract：:WHAT IS ALREADY KNOWN ABOUT THIS SUBJECT • The population pharmacokinetics and limited sampling strategies for ciclosporin monitoring have been extensively studied in renal and liver transplant recipients. Little is known about the pharmacokinetics of ciclosporin in patients undergoing haematopoietic allogeneic stem c...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章
doi：10.1111/j.1365-2125.2011.04116.x
更新日期：2012-04-01 00:00:00
abstract：AIMS:A recent case report had suggested a citrus soft drink (Sun Drop) may have caused clinically relevant elevations in ciclosporin levels through a grapefruit juice-like mechanism via inactivation of intestinal cytochrome P450 3A4 (CYP3A4). This study was conducted to investigate the effect of grapefruit juice and ci...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章,随机对照试验
doi：10.1111/j.1365-2125.2005.02519.x
更新日期：2006-10-01 00:00:00
abstract：AIMS:Drug disposition in children may vary from adults due to age-related variation in drug metabolism. Microdose studies present an innovation to study pharmacokinetics (PK) in paediatrics; however, they should be used only when the PK is dose linear. We aimed to assess dose linearity of a [14 C]midazolam microdose, b...
journal_title：British journal of clinical pharmacology
pub_type： 杂志文章,多中心研究
doi：10.1111/bcp.14047
更新日期：2019-10-01 00:00:00
